188results about How to "Realize automatic leveling" patented technology

The invention relates to an automatic leveling control device based on an SCM. The device comprises an equipment portion and an automatic control portion. The equipment portion is provided with a carrying platform, X and Y axial steering engines, a base, X and Y axial rotating mechanisms and a three-axis acceleration sensor, wherein the X and Y axial rotating mechanisms are installed on the base, the X and Y axial steering engines are installed on the X and Y axial rotating mechanisms, rotating shafts of the two steering engines are perpendicular to each other, and the carrying platform is arranged above the X and Y axial rotating mechanisms; and the three-axis acceleration sensor is arranged at the lower bottom of the carrying platform. The automatic control portion is composed of an SCM control unit, a steering engine regulating unit, a tilt sensor horizontal detection unit and a liquid crystal display unit. An A / D sampling sensor arranged inside the SCM outputs signals, generates two ways of pulse width modulation (PMW) drive signals to control the two steering engines to rotate corresponding angle, and adjusts the carrying platform dynamically to enable the carrying platform to maintain horizontal. The device is small in size, high in precision, wide in application range, capable of being combined with instruments such as a theodolite, and quick and convenient to level.

The invention provides an nano imprinter, comprising an X-Y rough action work table, a leveling device, an X-Y micro action work table, a sheet bearing plate, and a rotating work table, where the X-Y rough action work table is driven by two step motors to realize the horizontal rough location of the sample on the template and sheet bearing plate, the pressure sensor in the leveling device is used to measure and control the pressure in the course of imprinting and separating so as to control a DC servo motor to drive the template to move up and down, the X-Y micro action work table is driven by two piezoelectric ceramic tubes to regulate the horizontal fine location between the template and the sample, and the rotating work table is driven two step motors to realize the fine and rough location of the corner between the template and the sample. The invention has locating and aligning precision better than 20nm and can work in two modes of cold and hot imprinting, and has better flexibility.

The invention provides an automatic leveling laser measurement instrument, and relates to a measurement instrument for constructional engineering, solving the problem that the existing equipment is very difficult to level and the time is consumed. The automatic leveling laser measurement instrument comprises a main engine, a rotatable bracket and a fixed bracket, wherein the rotatable bracket comprises a bowl-shaped base and a spherical rotary part; the spherical rotary part is located in the bowl-shaped base; a through hole is formed in the bottom of the bowl-shaped base; homopolar magnets are arranged on the outer surface of the spherical rotary part and the inner surface of the bowl-shaped base; a platform is arranged below the main engine; the platform is fixedly arranged on the top of the spherical rotary part by a bolt; the gravity centers of the main engine and the spherical rotary part are on the same straight line; the bottom of the spherical rotary part is further connected with a heavy hammer by a pulling rope; the pulling rope penetrates through the through hole at the bottom of the bowl-shaped base and the lower side of the bowl-shaped base is fixedly arranged on the fixed bracket; a supporting leg of the fixed bracket is a retractable rod. According to the automatic leveling laser measurement instrument, the spherical rotary part, the bowl-shaped base and the heavy hammer are additionally arranged so as to realize automatic leveling of the main engine; the flexibility of equipment is increased by adopting a magnetic levitation manner and errors caused by friction are avoided.

The invention belongs to the technical field that when a vehicle runs with specific actions or under specific conditions or being operated by a driver, the responsivity is adopted as the feature and discloses a large-size vehicle body automatic leveling system and method based on six-point support. The large-size vehicle body automatic leveling system comprises a controller, a double-shaft tilt angle sensor, a human-computer interface, an alarm device, six support legs, six direct current motor drivers and six Hall sensors. By means of the large-size vehicle body automatic leveling system, thehighest point in a leveling support leg is maintained to be unchanged, remaining support points move upwards synchronously to be aligned with the highest point, and when all the remaining points reach the position of the highest point, a vehicle body is in the horizontal state; at the force adjustment stage, it is guaranteed that all tyres leave the ground and do not play the support role, and the whole vehicle body is supported by the six support legs; meanwhile, fine adjustment is conducted, and it is guaranteed that the six support legs are stressed uniformly. By means of the large-size vehicle body automatic leveling system, automatic leveling of a platform can be achieved in an outdoor unstructured environment; and the system has the advantages of being high in leveling precision, speed and reliability, great in stability and the like and is particularly applicable to the electronic equipment vehicle-mounted platform or various campsite motor homes.

The invention provides a hill and mountain tractor body attitude adjusting device and an adjusting method. Axle adjusting components of the hill and mountain tractor body attitude adjusting device are symmetrically mounted at the bottom of a body; the hill and mountain tractor body attitude adjusting device comprises axles, attitude adjusting hydraulic cylinders, stabilizers and variable connecting rod groups; the attitude adjusting hydraulic cylinders and the variable connecting rod groups are both symmetrically hinged between the body and the axles; each variable connecting rod group comprises two connecting rods, which are hinged between the body and the axles and parallel to each other in an up-and-down direction; the stabilizers are mounted between the body and the axles; an electronically controlled hydraulic system comprises a sensor, a signal collection unit, an attitude controller and an electronically controlled hydraulic valve which are connected with each other via signals; and the electronically controlled hydraulic valve controls the attitude adjusting hydraulic cylinders. According to the adjusting method, vehicle attitude information detected by the sensor is transmitted to the attitude controller by using the information collection unit, and then the electronically controlled hydraulic valve is controlled to adjust the attitude adjusting hydraulic cylinders, and finally, self-adjusting of body attitude is realized. According to the hill and mountain tractor body attitude adjusting device and the adjusting method, the body attitudes of wheeled vehicles are self-adjusted in real time to guarantee the running stability.

The invention belongs to the technical field of agricultural tillage machines, and relates to a rotary cultivator with an automatic leveling function. The rotary cultivator comprises a leveling supporting frame, a rotary cultivation mechanism, a leveling connecting mechanism and a linear extension mechanism. The leveling connecting mechanism is fixed to the rotary cultivation mechanism. The leveling connecting mechanism which swings leftwards and rightwards is connected with the leveling supporting frame in a rotatable mode. One end of the linear extension mechanism is hinged to the leveling supporting frame, and the other end of the linear extension mechanism is hinged to the leveling connecting mechanism. The leveling supporting frame is connected with a tractor. The leveling connecting mechanism and the rotary cultivation mechanism are driven by stretching and retraction of the linear extension mechanism to swing leftwards and rightwards. The invention further relates to a leveling method of the rotary cultivator with the automatic leveling function. The rotary cultivator has the advantages of being simple in structure, convenient to operate and good in universality, improving the rotary cultivation quality and working efficiency and promoting agriculture development.

The invention provides an unmanned aerial vehicle landing smoothly pushed by reverse air pressure, and relates to the technical field of unmanned aerial vehicles. The unmanned aerial vehicle landing smoothly pushed by the reverse air pressure comprises a frame body, wherein propellers are evenly and fixedly installed on the periphery of the frame body, a suspension device is fixedly connected to the inner part of the frame body, a supporting device is fixedly installed at the bottom of the frame body, an air collecting pipe is fixedly connected to the inner part of the frame body through a fixing ring, the air collecting pipe is internally and fixedly connected with a motor through a connecting seat, and the top of the motor is rotatably connected with fan blades. According to the unmannedaerial vehicle landing smoothly pushed by the reverse air pressure, the unmanned aerial vehicle can be enabled to be decelerated steadily and leveled automatically before being in contact with the ground, so that the operate difficulty of the unmanned aerial vehicle is reduced during landing, and the rollover of the unmanned aerial vehicle is avoided; and after taking off is carried out, the supporting device can contract, so that the resistance produced by the supporting device during the flight of the unmanned aerial vehicle is reduced, and the consumption of energy is reduced.

The invention discloses an automatic tiling machine. The automatic tiling machine is provided with a platform with a walking mechanism, a horizontal correcting mechanism, a stirring discharging mechanism, a brick groove and a brick paving rocker arm mechanism are mounted on the platform in sequence, the stirring discharging mechanism comprises a material bucket and a discharging pipe in soft connection with a discharging opening in the bottom of the material bucket, a discharging pipe opening is in a sawtooth shape, the horizontal straightening mechanism comprises a horizontal test unit and ahorizontal regulation unit, the horizontal test unit is connected with the horizontal regulation unit, the horizontal regulation unit is connected with the discharging pipe, the brick paving rocker arm mechanism comprises a base, and a rocker arm assembly connected with the base through a rotating disc, automatic leveling is achieved, horizontal and vertical calibration is simple and reliable, automatic brick paving is achieved only through person control, time and labor are saved, efficiency is greatly improved compared with manual work, ground brick and wall brick paving can be finished, thefunction is more complete.

The invention provides an electrical appliance provided with self-leveling feet and an automatic leveling method. The bottom part of the electrical appliance is provided with the self-leveling feet. Each self-leveling foot comprises a driving device, a bracket, a worm, a worm wheel and an adjustment supporting rod, wherein the driving device is installed on the bracket and drives the worm to rotate, the worm is matched with the worm wheel and drives the worm wheel to rotate, the adjustment supporting rod is threaded in a hole in the bracket, the adjustment supporting rod is provided with teeth which are meshed with teeth of the worm wheel to move upward or downward, the bottom end of the adjustment supporting rod is provided with a pressure sensor, the pressure sensor and the driving device are electrically connected with a controller of the electrical appliance, the controller sends an instruction so that the pressure sensor detects pressure thereon from a ground foot supporting surface and compares the magnitude of the pressure with that of a set pressure, and if the pressure detected by the pressure sensor is within a set pressure range, the controller considers that the electrical appliance is leveled and prompts a user. The electrical appliance can realize automatic leveling, is simple and high in leveling precision, avoids the cumbersome operation of manually screwing the ground feet for leveling, and enhances the user experience.

The invention relates to an self-adjusting foundation bed of level and theodolite, which is characterized in that it arranges horizon sensor on the adjusted base including a Y-type insulating triplet pipe with conductive liquid arranged on the surface of the base; each end of the pipe arranges a slope detesting switch with one contact is conductive liquid, while the other contact is a conductive needle which is fixed on the upper part of the conductive liquid and laid on the pipe end of the triplet pipe; it arranges height adjuster on the corresponding location of the base which is driven by the motor and which is a screw mechanism of the pipe end height of the triplet pipe; the motor uses the switch signal outputted form the corresponding pipe end slope testing switch as opening and ending control signal. The invention improves the surveying and mapping precision of level and theodolite.

The invention discloses an electronic balance base. The electronic balance base comprises a housing, adjustment screws, adjustment gears, driving motors, a spectrum emitter, a disc-shaped horizontal rule, a spectrum receiver, an electronic gyroscope, a control module, an adjustment button and a power supply, wherein the four corners of the base plate of the housing are each provided with a threaded hole, the upper portions of the adjustment screws are provided with gears, the lower portions of the adjustment screws are provided with threads, and the adjustment screws are arranged on the threaded holes; the driving motors, the adjustment gears and the gears of the adjustment screws are successively in transmission connection; the disc-shaped horizontal rule is arranged between the spectrum receiver and the spectrum emitter; and the electronic gyroscope is arranged at the center of the base plate of the housing. According to the electronic balance base, leveling work of the whole electronic balance base can be automatically and rapidly carried out under the control of the control module simply by pressing the adjustment button without manual intervention, and thus the work efficiency and the leveling precision are improved.

The invention provides a through operation platform for a railway engineering truck. The through operation platform for the railway engineering truck is provided with towing vehicles and operation vehicles. The two towing vehicles are arranged at the two ends of the truck; the plurality of the operation vehicles are connected in series into a line and then arranged between the two towing vehicles; liftable operation platforms are arranged at the tops of the operation vehicles; the plurality of the operation platforms are connected by plate overturning structures to form the through operation platform; automatic overturning folding rails are arranged at both sides of the upper end faces of the operation platforms; automatic leveling devices are arranged at the lower parts of two of the operation platforms; top access vehicle ladders are arranged between four of the operation vehicles and the operation platforms arranged at the tops of the four operation vehicles; hydraulic pump stations used for providing power for the lifting and overturning of the operation platforms corresponding to the tops of the operation platforms are arranged at the lower parts of the operation vehicles. By applying the through operation platform, the problems of low operation efficiency, high operation danger coefficient, higher using time of the dormant window and the like in the operation of railway overhead line systems are effectively solved. The through operation platform has the advantages of low manufacturing cost and high safety performance.

The invention discloses an electronic device, a bill data processing method and a computer readable storage medium. The method comprises the following steps that: if the basic data of a first insurance policy changes, keeping the basic data of the first bill constant, and writing a new field in the first list structure of the basic data of the first insurance policy to generate a second list structure; when monthly settlement is carried out, if the month contains second time, on the basis of the data of the second list structure, generating monthly bill data, and synchronously storing the monthly bill data to a third bill structure; and when quarter settlement is carried out, if the quarter contains second time, on the basis of the data of the second list structure and the monthly bill data, generating quarter bill data to realize the automatic leveling of a data balance between the monthly bill data and the quarter bill data. By use of the method, the data balance between the monthlybill data and the quarter bill data can be automatically leveled, a great quantity of manpower is saved, and errors generated by a manual operation is avoided.

The invention is applicable to the technical field of radars, and discloses a leveling device and method for a lidar emission optical path, and the leveling device comprises a radar base for fixing alidar, adjusting equipment, a reflector, a light screen, a camera and analysis equipment, wherein the reflector is used to reflect the scanning beam emitted by the lidar onto the light screen to formreflective light spots; a reference mark is set on the light screen and used to mark the distance between the respective reflective light spots; the camera is used to shoot an image of the light screen presenting the reflective light spots, and send the shot image to the analysis equipment; the analysis equipment determines adjustment parameters of a light source of the lidar based on the image and sends the adjustment parameters to the adjusting equipment; and the adjusting equipment adjusts the light source according to the adjustment parameters until the distance between the respective reflective light spots on the light screen is less than or equal to a preset distance. The leveling device and method for the lidar emission optical path provided by the invention can realize the automatic leveling of the lidar emission light path, and can be realized only by one camera with low cost.

The invention discloses additional material manufacturing equipment with a high-response parallel leveling mechanism and a leveling method. The bottom of a rack is provided with a Y-direction moving mechanism, a supporting platform is arranged on the Y-direction moving mechanism, Z-direction moving mechanisms are arranged on the two sides of the rack correspondingly and connected with an X-direction moving mechanism, and the X-direction moving mechanism is provided with a printing sprayer and a distance measuring device. The Z-direction moving mechanisms are used for driving the X-direction moving mechanism to vertically ascend and descend up and down and move in the Z direction, the X-direction moving mechanism drives a vertical support and the printing sprayer and the distance measuringdevice on the X-direction moving mechanism to horizontally move in the X direction. A printing platform is installed on the supporting platform in a posture adjusting and supporting manner through a telescopic device and a virtual fixing rod. By means of the additional material manufacturing equipment, the additional material manufacturing leveling precision and response can be effectively improved, and accordingly the additional material manufacturing final effect is improved.

The invention relates to an automatic universal plane weighing system and a control method thereof. The automatic universal plane weighting system comprises a main control computer, a vertical and horizontal inclined detector, a front supporting point weight detector, a rear left supporting point weight detector, a rear right weight detector, a front supporting point electro-hydraulic servo jack assembly, a rear left supporting point electro-hydraulic servo jack assembly, a rear right supporting point electro-hydraulic servo jack assembly and a power source assembly, wherein the vertical and horizontal inclined detector, the front supporting point weight detector, the rear left supporting point weight detector, the rear right weight detector, the front supporting point electro-hydraulic servo jack assembly, the rear left supporting point electro-hydraulic servo jack assembly and the rear right supporting point electro-hydraulic servo jack assembly are connected with the main control computer, and the power source assembly is electrically connected with all the other components. The front supporting point weight detector, the rear left supporting point weight detector and the rear right supporting point weight detector are arranged at the top or the bottom of the front supporting point electro-hydraulic servo jack assembly, the top or the bottom of the rear left supporting point electro-hydraulic servo jack assembly and the top or the bottom of the rear right supporting point electro-hydraulic servo jack assembly respectively. Therefore, automatic plane leveling and automatic plane weighing can be realized, the plane weight and the plant gravity center are worked out accurately and quickly, human mistakes and errors are prevented, the labor cost is lowered, operation is convenient and high in efficiency, the structure is simple, the implementation difficulty is low, and calculation precision is guaranteed.

The invention relates to an automatic imaging detection analysis processing system for a macroscopic test, and belongs to equipment special for steel sample detection. A corresponding workpiece leveling system is arranged on a frame and used for calibrating an upper plane of a workpiece and a theoretical scanning plane; a camera moving system is arranged above the frame and the workpiece leveling system and used for implementing position change and relative movement of a camera and the workpiece; a multi-axis numerical control driving system is used for controlling movement and position of each mechanism of equipment; an image information acquisition and processing system is used for acquiring and converting surface quality information of the workpiece; a surface quality analysis and automatic grading software system is installed in a computer and mainly used for implementing identification, quantification, statistics and automatic grading of the surface quality information of the workpiece, and is a core software system of the equipment; and image storage, management, browse and report generating software is special software for detecting analysis result output management, and is installed in the upper computer.

The invention discloses a large radar antenna six-freedom-degree automatic docking and separating system and method. The large radar antenna six-freedom-degree automatic docking and separating system comprises a main control system, a pose detection system, a motion control system, a hydraulic execution system, a pose detection device and a docking mechanism. The pose detection device collects positional information of the docking mechanism in real time and transmits the positional information to the pose detection system, the pose detection system transmits the positional information to the main control system, the main control system converts the positional information to controllable relative pose parameters and sends a control command to the motion control system, and the motion control system drives the hydraulic execution system to adjust the docking mechanism in real time to conduct docking and separating. The mechanical-electrical-hydraulic integration technology is adopted for the large radar antenna six-freedom-degree automatic docking and separating system, vision sensors and laser distance measuring sensors are adopted for automatic identification of targets, automatic leveling of intermediate block antennas and edge block antennas and six-freedom-degree motion of the edge block antennas can be achieved, and then automatic splicing and separating of the edge block antennas and the intermediate block antennas are finished, safety and rapidness are achieved, and defects of hoisting are overcome.

The invention relates to a machine for automatically arranging tubular materials. The machine comprises a bayonet chain, wherein a rotating shaft which rotates along with the arranging machine is arranged at the inlet of the bayonet chain; a transverse baffle plate is arranged on the rotating shaft; a friction belt is arranged on one side of the middle of the bayonet chain; the moving directions of the friction belt and the machine are opposite; an included angle is formed between the moving direction of the friction belt and the moving direction of the arranging machine; and a positioning baffle plate for aligning the tubular materials is arranged on the tail of the bayonet chain. The machine can automatically adjust and align the tubular materials.

The invention provides a structure and a continuous stamping and automatic overlapping and assembling method of silicon steel sheets of a transformer iron core of a welding machine. During a high-speed continuous stamping process of strip-shaped raw materials of the silicon steel sheets, two silicon steel sheets are simultaneously stamped in each time, and the silicon steel sheets which are stamped in each time can be automatically overlapped together with silicon steel sheets which are already stamped, and the silicon steel sheets can exit until certain thickness is achieved. The automatic overlapping of the silicon steel sheets is realized as multiple bulges are designed on the surfaces of the silicon steel sheets and the pressure action during the stamping process is utilized at the same time, steel sheet iron cores which are subjected to high-speed stamping and overlapped together can exit from a die when the certain thickness is achieved, the continuous stamping and automatic overlapping and assembling method aims at realizing the automatic overlapping of processed silicon steel sheets, and thus a manual sheet overlapping mode in a general processing method can be omitted. The structure and the continuous stamping and automatic overlapping and assembling method, which are disclosed by the invention, have the characteristic of efficient and quick processing, and the production cost of parts is reduced.

The invention discloses an omni-directional self-alignment mechanism for steel structure installation. The self-alignment mechanism comprises a shell, a sensing device, a horizontal moving device, a jacking device and a driving device, wherein the shell comprises an outer shell, a bottom fixing plate and an upper fixing plate; a sensing component is installed on a steel member and used for sensing the positional deviation of the steel member; the horizontal moving device is installed on the bottom fixing plate, and the horizontal moving device comprises an adjusting component and a moving component; the jacking device is installed above the upper fixing plate, the jacking device comprises a linkage component and vertical movement components, and the linkage component is used for driving the vertical movement components to move at the same time; and the driving device is installed between the horizontal moving device and the jacking device. According to the self-alignment mechanism, automatic leveling of butt-joint installation of a steel beam, a steel truss and a net rack is achieved, the butt-joint installation efficiency of the steel structure is improved, the suspension time of the steel member and the auxiliary time of a large crane are shortened, and the safety risk is reduced.

The invention provides a hydraulic leveling base and a washing machine. The hydraulic leveling base comprises supports which can be combined and connected or used independently, as well as leveling bottom legs disposed under the supports, wherein the upper part of each support is a supporting face used for bearing; and each leveling bottom leg is filled with a hydraulic medium, and the hydraulic medium can flow inside the leveling bottom leg and / or flow between the leveling bottom legs, so automatic leveling can be achieved. According to the invention, the leveling bottom legs are disposed onthe lower parts of the support of the hydraulic leveling base, and the hydraulic medium can flow inside the leveling bottom legs and / or flow between the leveling bottom legs, so the compression amounts of the leveling bottom legs are big under bearing of huge pressure; and the leveling bottom legs bearing small pressure can be lengthened under hydraulic effects, so automatic height leveling can beachieved. The hydraulic leveling base provided by the invention is characterized in that the leveling bottom legs can be adjusted effectively in time according to actual use environments based on hydraulic principles; adjustment effects are better; and applicability is high.

The invention discloses a device used for lithium battery electrode tab shearing. The device is characterized by comprising a rack, a feeding table used for containing a lithium battery, a battery compression mechanism used for compressing a lithium battery body and an electrode tab shearing mechanism used for smoothening and shearing an electrode tab; the electrode tab shearing mechanism comprises an installing rod, an installing block and a pushing rod, a driving wheel is arranged at the bottom of the installing rod, a hook block is fixed to the installing block, and a hook table is formed on the side wall of the hook block; a set of cutters are arranged on the upper end face of the pushing rod, an installing column is fixed to the lower end of the pushing rod, a roller and a pulling rodare arranged on the installing column rotationally, a hook part is formed at the upper end of the pulling rod, the outer end of the hook part is in contact with the side wall of the hook table, a torsional spring is arranged between the pulling rod and the outer end of the installing column, and a protrusion part is formed on the outer wall of the driving wheel; and an arc-shaped installing holeis formed in the side face of the driving wheel, a pulling plate is arranged in the installing hole, and a pulling column is arranged at the outer end of the pulling plate.

The invention discloses an automatic levelness adjustment method. The method comprises the steps that: a level bubble is installed on a to-be-leveled device base mechanism; offset direction information of the device base mechanism is obtained by monitoring azimuth information of a bubble deviating from the center in the level bubble; and according to the offset direction information, the base mechanism is adjusted up and down in the corresponding direction until the bubble in the level bubble is located in the center of the level bubble. The invention further provides an automatic levelness adjustment structure applied to a to-be-leveled device base mechanism. The automatic levelness adjustment structure comprises a PLC control chip, level bubbles, a base corner level height adjustment mechanism and a position monitoring sensor which are installed on the to-be-leveled device base mechanism; the level bubbles are installed on the two sides of one corner of the base mechanism, the levelbubbles on the two sides are installed in a 90-degree mode; and the position monitoring sensor is an infrared sensor. The adjusting method and mechanism provided by the invention are simple and convenient to operate and high in adjusting precision; and the adjusting method and mechanism can be widely applied to measurement, control and installation of precise instruments and equipment.

The invention discloses a numerical control flexible roll bending plate bending machine for a small-diameter thin-walled pipe body, and relates to the technical field of plate bending machines. A lower rubber-covered roller (6) is arranged on a rack (1), wherein a rotating shaft of the lower rubber-covered roller (6) is connected with a transmission device (2); a displacement sensor (5) is arranged between the lower rubber-covered roller (6) and an upper rubber-covered roller (7); piston rods of two oil cylinders (4) are connected with the two ends of the lower rubber-covered roller (6) respectively; a hydraulic station (3) is arranged at the lower end of the rack (1); a PLC (programmable logic controller) control cabinet (10) is arranged on one side of the hydraulic station (3); a die roller (8) is arranged on the upper side of the lower rubber-covered roller (6); the upper rubber-covered roller (7) is arranged on the upper side of the die roller (8); a die following constraint device (9) is arranged at one end of the die roller (8); a return device is arranged on the lateral surface of the rack (1). According to the plate bending machine, a flexible roll bending forming mode is adopted, so that the surface of a workpiece is difficult to scratch, the automation degree is improved, the production cost is lowered, the production efficiency is improved, the safety is improved, and the roundness and the cylindricity of formed workpieces are favorably ensured.

The invention provides self-levelling machine spraying putty powder for an interior wall as well as a preparation method and use method of the putty powder. The putty powder is prepared by mixing thefollowing components in parts by weight: 10-25 parts of white cement, 50.5-78.4 parts of heavy calcium carbonate, 10-20 parts of ash calcium, 0.5-1.5 parts of a flow enhancer, 0.25-0.5 part of self-levelling cellulose ether, 0.5-1.5 parts of redispersible polymer gel powder, 0.25-0.5 part of starch ether, and 0.1-0.5 part of a hydrophobic agent. According to the putty powder provided by the invention, the construction process is simplified, the preparation method is simple and convenient, the costs are lower, the putty powder is easily ground, a high-adhesion, safe and durable putty construction surface is provided for a subsequent coating system, and the problem that a construction surface easily generates microbubbles, pinholes and honeycombs is solved.

The invention relates to an energy-saving type oil pumping unit with balance automatically adjusted by liquid. The energy-saving type oil pumping unit comprises an oil pumping unit base, a bracket, a bracket shaft, a walking beam, a speed reduction box, a crank, a balance weight, a connecting rod, a tail shaft, a distribution box and a driving motor. The energy-saving type oil pumping unit is characterized in that the tail part of the walking beam and the bracket are respectively provided with a balance adjusting water tank (1) and a water storage tank (8); the water tanks are respectively provided with a water reducing pump (2) and a water adding pump (9) inside and are communicated with each other through a water adding pipe (2) and a water reducing pipe (4); according to the balance condition of the currents of the up and down strokes of the oil pumping unit, a control box (12) arranged on the distribution box can automatically control the water pumps to add or reduce water for the balance adjusting water tank in a set working way so as to enable the ratio of the effective peak currents of the up and down strokes of the oil pumping unit to be always kept over 5%, and therefore the automatic balance adjustment of the oil pumping unit is realized; and the scheme is suitable to not only newly manufactured oil pumping units but also upgrading and improvement of the existing oil pumping units.

The invention provides a household electrical appliance and a foot of the household electrical appliance. The foot comprises a protective sleeve which is fixed at the bottom of the household electrical appliance, an adjusting foot which is arranged in the protective sleeve and capable of moving relative to the axial direction of the protective sleeve, a flexible body assembly in which a hydraulicmedium is contained, wherein the flexible body assembly comprises a flexible telescopic part arranged in the adjusting foot which is driven telescopically to move in the axial direction by the flexible telescopic part under the action of pressure force for leveling, a friction damping assembly which is arranged between the protective sleeve and the adjusting foot for generating frictional dampingto damp the vibration of the household electrical appliance and an elastic buffering component which comprises an elastic buffering end part abutted against the adjusting foot used for buffering the vibration of the household electrical appliance. According to the foot, a better leveling effect is achieved by matching the friction damping assembly and the elastic buffering component with the hydraulic medium in the foot of the household electrical appliance, and better absorbing and adjusting effects can be achieved particular aiming at the vibration generated in the dehydrating process of a washing machine to reduce dehydrating vibration and dehydrating noise.

The invention discloses a watch step-counting accuracy detection device capable of automatically leveling. The device comprises a driving motor, a mechanical counter, a vibration-reducing bottom column, a power indicator, a liquid crystal display, a speed control button, an emergency stop button, a device switching button, a control panel, non-slip supporting legs, a power connector, a detection device main body, a watch swing arm and a swing arm braking apparatus. The watch step-counting accuracy detection device disclosed by the invention is provided with the swing arm braking apparatus, during use of the watch step-counting accuracy detection device, after the driving motor is powered off to stop working, the watch swing arm simultaneously stops swinging, and the condition that the detection result is different from the accuracy value because the watch swing arm continuously swings due to inertia is avoided. According to the vibration-reducing bottom column arranged below the detection device main body, the device can be automatically adjusted to enable the detection device main body to be located in a horizontal state, and the detection result accuracy of the watch step-counting accuracy detection device is effectively improved.

The invention discloses a novel numerical control carving machine and relates to the technical field of mechanical equipment. The novel numerical control carving machine comprises a carving machine body (1) and a main shaft (2). The carving machine body (1) is provided with the main shaft (2). The novel numerical control carving machine further comprises a digital micrometer (3), a connection electric wood block (4) and a stainless steel iron hoop (5). The stainless steel iron hoop (5) is arranged on the lower portion of the main shaft (2) through a fixing bolt, and the front side of the stainless steel iron hoop (5) is connected with the connection electric wood block (4) through a fixing bolt. The lower portion of the connection electric wood block (4) is connected with the digital micrometer (3) through a fixing bolt. The digital micrometer (3) is electrically connected with a computer (6) through a wire. The novel numerical control carving machine is simple in structure, convenient to operate and capable of achieving automatic plate face leveling, and improves carving precision.