293results about How to "Lower height requirement" patented technology

The invention relates to a screw drilling tool, a vertical drilling tool testing method and well inclination simulation testing equipment, and relate to the technical field of petroleum equipment. Thetesting equipment comprises a main bracket, a push-pull device and an angle measuring device, wherein the first end of a tested tool is suspended and pivoted to the main bracket, one end of the push-pull device is connected with the main bracket, the other end of the push-pull device is connected with the tested tool, and the push-pull device is used for pushing or pulling the tested tool to makethe tested tool incline; and the angle measuring device is connected with the tested tool and used for measuring the offset distance of the second end of the tested tool. The testing method includesthe following steps that the first end of the tested tools is suspended and pivoted to the main bracket; the second end of the tested tool is pushed or pulled to make the tested tool incline; the offset distance of the second end of the tested tool is measured; and according to the offset distance, the inclination angle of the tested tool is calculated. By means of the testing equipment and the testing method, the tested tool can incline at different angles, and the working condition that the tested tool deviates from the vertical plane due to inclination of a well wall is simulated.

A valve actuator for an internal combustion engine is described having a core having a wound coil located therein, said core further having at least one permanent magnet located at least partially inside or outside said coil and positioned at an angle relative to a direction of movement of an armature. Further, various recesses, indentations, chamfers, bevels, and / or depressions may be included to affect flux leakage, and / or force generation.

The instant invention pertains to a road vehicle's axial flow cooling fan which normally draws cooling air from in front of the vehicle and blows it into the engine bay. The instant invention includes a control circuit for the fan motor that provides variable speed and bi-directional, or reverse and normal, fan operation. Reverse fan operation blows air from the engine bay through the radiator and out the front of the vehicle, and normal fan operation blows into the engine bay. Two input sensors feed the control circuit, one for road speed of the vehicle and other for engine temperature. When the engine is below its operating temperature and the vehicle is moving, the fan is made to blows in reverse at a speed proportional to road speed so as to block cold ram air from entering and blasting onto a warming engine. This speeds engine warm-up to reduce emissions, improve fuel economy, and speed windshield defogging. The fan may also be made to blow in reverse when the engine is cold and the vehicle is stopped, in order that exhaust-heated air from the exhaust manifold behind the engine, may be drawn forward over the engine block to speed its warming. When the engine is above its operating temperature and the vehicle is idling or moving slowly, as in traffic, then the control circuit causes the fan to again blow in reverse cooling both the radiator and the engine bay components and preventing hot, noxious fumes from vehicles in front from being drawn into the vehicle. Blowing in reverse in traffic conditions also eliminates hot air looping back to the front of the car and drawn in through the radiator. As vehicle speed increases, the fan is made to revert to normal operation augmenting ram air flow through the radiator.

An X-ray imaging system comprising: an X-ray source, a source grating, a fixed grating module and an X-ray detector, which are successively positioned in the propagation direction of X-ray; an object to be detected is positioned between the source grating and the fixed gating module; said source grating can perform stepping movement in a direction perpendicular to the optical path and grating stripes; wherein the system further comprises a computer workstation for controlling said X-ray source, source grating and X-ray detector so as to perform the following processes: the source grating performs stepping movement in at least one period thereof; at each stepping step, the X-ray source emits X-ray to the object to be detected, and the detector receives the X-ray at the same time; wherein after at least one period of stepping and data acquisition, the light intensity of X-ray at each pixel point on the detector is represented as a light intensity curve; the light intensity curve at each pixel point on the detector is compared with a light intensity curve in the absence of the object to be detected, a pixel value of each pixel point is calculated from change in said light intensity curve; an image of the detected object is reconstructed according to the calculated pixel value.

An agricultural tractor (10) comprises a cooling package (22) disposed in front of an engine (20) and under a hood (14) forward of a cab (12). The cooling package (22) comprises a cooler having a major surface into which air enters. The cooling package (22) and hood (14) is inclined so that the major surface slopes upwardly in the rearward direction. The hood (14) comprises an air inlet grille (36) in the upper surface to provide an upstream air inlet for the cooling package (22), thereby significantly improving the airflow dynamics.

A valve actuator for an internal combustion engine is described having a core having a wound coil located therein, said core further having at least one permanent magnet located at least partially inside said coil and positioned at an angle relative to a direction of movement of an armature.

The invention relates a visualization characterization technology of a coal sample, and in particular relates to a visualization quantitative CT (Captive Test) characterization method for component distribution and a physical structure of a coal sample. The visualization quantitative CT characterization method comprises the following steps of: sampling and pre-testing the coal sample; carrying out an X-ray absorption characteristic analysis on each component of a second coal sample; carrying out X-ray absorption characteristic analysis on residual minerals; carrying out a CT on the coal sample; establishing a mathematical model and carrying out a numerical analysis on CT slices; and carrying out visualization quantitative characterization. The CT characterization method provided by the invention adopts a plurality of CT data obtained by monochromatic X-ray experiment energy to carry out conjoint analysis, and detects the information of a component, dimension of which is smaller than CT resolution dimension, on a CT picture by establishing a data model on a single CT element, so that the visualization result of the component distribution characteristic and the physical structure of the coal sample is accurate.

The invention relates to an ultrahigh-voltage oil-SF6 sleeve test device which overcomes the shortcomings and defects of single test ability, low test voltage grade and vertical arrangement of sleeve samples of the existing oil-SF6 sleeve test device. The device comprises a test oil tank, a GIS (Gas Insulated Switchgear) bus tube, a GIS sleeve, an oil-SF6 sleeve, an oil conservator, a transition plate, a support base and accessories, and is characterized in that: the oil-SF6 sleeve sample is horizontally mounted. The insulating property of the device can meet the insulation requirement of the sleeve test device with a grade between 500KV and 1,100KV; the actual operation conditions of the oil-SF6 sleeve can be simulated; the sleeve mounting height of the whole test device is reduced, thereby being favorable for the transportation and disassembly / assembly; and meanwhile, the requirements for the structural strength and safety of the test device are reduced, and the requirement for the height of the hall building of the test environment is reduced.

A method of operating chromatography column apparatus comprising a column tube (101) and first and second discrete end cell structures, associated with the respective ends of the column tube and positionable to close off the column tube and define therein a column space for retaining chromatography medium in use of the apparatus. The first end cell portion comprises a piston portion (106) fitting slidably in the column tube. The column tube and the second end cell structure are separated to provide an access spacing between them. The piston portion (106) of the first end cell structure is advanced through the column tube to expose it at the open second end of the column tube, for maintenance of the piston portion thus exposed. Corresponding chromatography apparatus is another aspect of the disclosure.

The invention discloses a detection method for voltage fluctuation of the electric energy quality. The method comprises: a sensor device is used for converting a primary voltage of a system into a voltage signal suitable for AD conversion; after the AD conversion on the signal, voltage root-mean-square value calculation is carried out by using a cycle of a power frequency, thereby obtaining a voltage effective value; continuous voltage effective values are compared to obtain a peak value U (peak) and a valley value (valley); a microcomputer device calculates duration time, a time mark, and a voltage fluctuation value, starts storage data, processes data, and displays a fluctuation situation to complete a voltage disturbance analysis. Therefore, the high requirement on the microcomputer device hardware by the electric energy quality monitoring is reduced substantially; and the effect of controlling the cost of the electric energy quality monitoring device is good.

The invention discloses a fin of a heat exchanger, which is arranged between neighboring flat pipes on a bent part of the heat exchanger. The fin can be bent on the bent part with the heat exchanger and is provided with a notch. The fin contributes to the reduction of the bending difficulty of the heat exchanger along a flow collecting pipe direction and can reduce the influence of a bending procedure on the heat exchanging performance of the heat exchanger to a minimum degree at the same time so as to still keep a relatively high exchanging performance after the fin is bent. The invention also discloses the heat exchanger with the fin.

The invention discloses a hydraulically-driven roadblock machine, which comprises a base, a cover plate and a hydraulic driving device. The cover plate is installed on the base. The hydraulic driving device is coupled on the cover plate and comprises a hydraulic source, a transmission mechanism, a rolling shaft, an inclined block, a cover plate supporting rod and an elastic piece. One end of the cover plate is fixedly hinged on the base. The hydraulic source is coupled to the rolling shaft through the transmission mechanism. The rolling shaft is arranged in a way that the rolling shaft can be driven by the transmission mechanism and can roll on the inclined block to move up, wherein the upwards moving direction faces towards one side of the fixed end of the cover plate. The elastic piece is arranged in a way that the elastic piece can transmit force to the rolling shaft to enable the rolling shaft to be restored downwards along the inclined block when the hydraulic source is turned off. The first end of the cover plate supporting rod is hinged on the rolling shaft. The second end of the cover plate supporting rod is hinged on the internal side of the cover plate. The hydraulically-driven roadblock machine provided by the invention ahs the advantages of compact and ingenious structure, small size, light weight, small thickness and wide application scope.

The invention discloses a horizontal type self-shielding accelerator. The horizontal type self-shielding accelerator comprises an accelerator high-pressure part steel drum and a beam extraction part steel drum which are connected. A shielding body is connected to the beam extraction part steel drum and internally provided with a vacuum system penetrating through a wall plate of the shielding body to be connected with the beam extraction part steel drum, and the shielding body is internally further provided with a scanning window connected with the vacuum system. An under beam device is arranged in the part, right ahead of the scanning window, of the shielding body and installed on a shielding door of the shielding body. The accelerator is of a horizontal structure, in other words, the accelerator high-pressure part, the beam extraction part and the scanning window are of a horizontal structure, a traditional accelerator is of a vertical type structure, has the high requirement for the height of a workshop and has the characters of being difficult to maintain, troublesome in operation and the like, the full horizontal type structure is adopted, and due to the fact that all devices are arranged on the ground, the horizontal type self-shielding accelerator has the advantages of being simple in structure, convenient to operate and maintain, low in requirement for the height of the workshop and the like.

The invention relates to a low-pressure methanol synthesizing process. In the low-pressure methanol synthesizing process, both a primary reactor and a secondary reactor adopt a boiler feed water forced circulating heat transfer technology, heat transfer is fast and efficient, the device layout can be effectively simplified, the project investment of a device frame is reduced, and the problems of circulating ratio decrease, a non-ideal heat effect and the like, which are caused by inaccurate calculation of the layout height of a steam pocket, do not appear; through forced circulation, the circulating ratio can be effectively increased, reaction heat can be efficiently and reasonably utilized, and the heat transfer effect is enhanced; a jumper wire is arranged between an outlet of a synthetic gas compressor and an inlet of the secondary reactor, so that stable operation of catalysts in the two stages of reactors in different stages of the service life is achieved, and through the jumper wire, loads of the reactors are conveniently and forcibly adjusted, so that the production ratio of medium-pressure steam to low-pressure steam is flexibly adjusted; a connection position of fresh synthetic gas is arranged behind a synthetic gas thermostat, so that the heat transfer area and the specification of the synthetic gas thermostat can be reduced and the project investment is reduced.

The invention discloses a shielding method and a shielding structure of a radio frequency test circuit. The shielding method comprises the following steps that a circuit board is provided with a timing single-side arrangement device and a partition layout circuit; the back side of the circuit board adopts the blind hole design, and a whole block of gold-plated copper sheet is solidly connected with the ground; the upper side and the lower side of the circuit board are respectively provided with a metal shielding cover, the shielding cover at the side of the device is provided with a movable upper cover, and the debugging is convenient; after the circuit is debugged, the movable upper cover is installed, and the device is sealed; and the shielding structure comprises a shielding box, the shielding box consists of a shielding cover, a shielding frame and a shielding board, the circuit board is arranged between the shielding frame and the shielding plate, the circuit board, the shielding frame and the shielding plate are tightly connected through screws, the shielding cover and the shielding frame are independently connected, and the shielding frame, the shielding cover and the circuit board are sealed through striped elastic conducting materials. Measures are adopted in two aspects including the circuit design and the structure design, and the goals of simple structure, small size, convenience in installation and debugging and good electromagnetic shielding effect are reached.

The invention relates to magnetic powder forming equipment, in particular to a magnetic field isostatic pressing machine. By the adoption of the magnetic field isostatic pressing machine, the problems that an existing magnetic field isostatic pressing machine is complicated in structure, low in automation degree and low in orienting magnetic field are solved. The magnetic field isostatic pressing machine comprises a machine frame. An upper high-pressure oil cylinder is arranged at the top of the machine frame. A workbench is arranged in the middle of the machine frame. An isostatic pressing mold is placed on the workbench. The workbench can move relative to the machine frame. Electromagnetic coils are fixed to the machine frame. Iron cores are arranged in the electromagnetic coils. One end of the iron core of each electromagnetic oil above the isostatic pressing mold is fixedly connected with the end of a piston rod of the upper high-pressure oil cylinder, and the other end of the iron core of each electromagnetic oil above the isostatic pressing mold is made into a pressing head which can stretch into the isostatic pressing mold and be matched with the inner wall of the isostatic pressing mold. The isostatic pressing mold comprises an isostatic pressing mold cavity. A spacer bush is arranged in the isostatic pressing mold cavity. Liquid plastic is poured into the space between the spacer bush and the inner wall of the isostatic pressing mold. According to the magnetic field isostatic pressing machine, the isostatic pressing mold cavity can serve as the mold, and the overall structure is greatly simplified; meanwhile, the multi-station movable workbench can be arranged, and thus high efficiency and automation are achieved.

The invention relates to a toe guard for an elevator, and particularly provides a telescopic type toe guard. The telescopic type toe guard is mounted at the bottom of a cage, and comprises an upper inner plate and a lower outer plate, wherein the upper inner plate is connected with the lower outer plate through sliding rails; the top of the upper inner plate is fixed on a bottom beam of the cage; the lower outer plate moves up and down along the sliding rails; the telescopic type toe guard further comprises screws; the bottoms of the screws are fixed on the lower outer plate; and the upper parts of the screws are movably arranged on the upper inner plate. According to the telescopic type toe guard provided by the invention, the requirement on the height of a bottom pit is reduced; furthermore, the problem that maintenance personnel or a passenger falls into a shaftway due to the fact that the conventional toe guard is not long enough is solved, the safety of maintenance and loading is improved, an enough safe distance is guaranteed, and the damage to the toe guard due to collision with the bottom pit is avoided; and the toe guard is convenient to mount, and the cost is reduced.

The invention relates to a novel reaction type sand making machine. The front end surface and the rear end surface of the inner part of a machine frame are provided with lining plates, three plate hammer rotors are arranged in the centre of the machine frame, the left sides and the right sides of the three plate hammer rotors are respectively provided with reaction frames, the outer sides of the reaction frames are movably connected with reaction frame adjusting devices, and protection covers are covered at the outer sides of the reaction frames. The strength of plate hammers is improved, the utilization rate of the plate hammers is improved, a material is saved, and a resource is saved. Each plate hammer is in gapless fit with a plate hammer pedestal A, so that a clamping part formed by each plate hammer and the plate hammer pedestal is firm, sand can be quickly formed, the production volume is high, and the power consumption per cubic sand is reduced. Because of a converter system, the rotation speed of each plate hammer can be continuously improved during the attrition process, the stable reaction force of the rotors can be kept, the production efficiency is improved, the sand forming quality is improved, and the requirements on the heights of springs are reduced. The reaction frame is relatively durable, and the adjusting travel is large. The novel reaction type sand making machine has the characteristics of strong durability, novel and simple structure and convenience for operation and maintenance.

The invention belongs to the technical field of plate coil material machining, and discloses a stepping-type laser cutting uncoiling blanking line. The stepping-type laser cutting uncoiling blanking line comprises an uncoiling machine, a leveling machine, a fixed-length feeding machine and a laser cutting machine which are sequentially connected in series. A coil material is placed on the uncoiling machine; a special cutting platform is arranged on the laser cutting machine; the laser cutting machine comprises three or more laser cutting heads arranged above the special cutting platform; and ablanking opening is formed in the position, corresponding to cut waste, of the special cutting platform. According to the stepping-type laser cutting uncoiling blanking line, the laser cutting machine is adopted to replace a traditional mechanical press machine, continuous production of laser cutting is achieved, a blanking die is not needed, the layout of parts is unrestricted, arbitrary optimizing can be conducted, the shapes of the parts are unrestricted, the shapes which are hard to machine by a traditional uncoiling blanking line can be machined, and the material utilization rate can beincreased to the largest limit.

The invention discloses an intelligent loading and unloading vehicle system based on visual servo, and belongs to the technical field of intelligent loading and unloading vehicle robots. The intelligent loading and unloading vehicle system comprises an unstacking and stacking mechanism, a conveying mechanism and an AGV loading and unloading mechanism, wherein the two ends of the conveying mechanism are connected to the unstacking and stacking mechanism and the AGV loading and unloading mechanism correspondingly; the AGV loading and unloading mechanism comprises an AGV trolley capable of achieving front-back, left-right and rotation displacement, a pose adjusting device arranged on the AGV trolley, a flexible grabbing device arranged on the pose adjusting device, and a first image obtainingmechanism arranged on the flexible grabbing device; and the unstacking and stacking mechanism comprises a movable carrying platform, a three-coordinate machine arranged on the carrying platform, anda second image obtaining mechanism arranged on the three-coordinate machine. The intelligent loading and unloading vehicle system solves the problem that an unstacking and stacking machine is not suitable for narrow space and space needing to be moved, full-automatic loading and unloading of goods in limited space such as a van are achieved, and manpower replacement is achieved.

The invention discloses a vibration pile driving hammer with manipulation functions of multiple degrees of freedom, which comprises a hoisting connecting plate, a hanging bracket, a vibration exciter, a clamping device and a damping device, wherein the hanging bracket is connected with the vibration exciter through the damping device; the clamping device is installed on the vibration exciter; the vibration pile driving hammer also comprises a horizontal rotating mechanism and a vertical swinging mechanism, wherein the horizontal rotating mechanism can rotate for 360 degrees in a horizontal plane; the vertical swinging mechanism drives the vibration exciter and the damping device to swing; one end of the horizontal rotating mechanism is fixedly connected with the hoisting connecting plate; the other end of the horizontal rotating mechanism is fixedly connected with the hanging bracket; one end of the vertical swinging mechanism is fixed on the hanging bracket; and the other end of the vertical swinging mechanism is fixedly connected with the damping device. The invention realizes quick positioning and quick pile sinking by multiple degrees of freedom and improves the construction efficiency of a pile driving machine.

An impact attenuation bag has a height-reducing structure in the form of an internal rib that draws the upper and lower surfaces of the bag closer together, reducing the overall height of the bag when inflated as compared with the same bag in the absence of the rib. This gives the bag a flatter resting shape that provides significant performance enhancement by increasing the initial ground contact area and lowering the vehicle assembly center of gravity. As a result, the moment arm is reduced making the payload less likely to roll over. The rib may be a fabric sheet or cord laced in a criss-cross or other lacing pattern that extends from the top of the bag to the bottom.

The invention discloses a rotary jet grouting bar inserting type mini pile construction method. The rotary jet grouting bar inserting type mini pile construction method comprises the first step of pile position lofting, the second step of taking drilling machine into place, the third step of hole leading, the fourth step of cement paste mixing, the fifth step of high-pressure rotary jet grouting pile forming, the sixth step of steel pipe manufacturing, the seventh step of steel pipe placing, the eighth step of drilling machine translocating and the ninth step of grouting. The rotary jet grouting bar inserting type mini pile construction method has the beneficial effects that the working face is small, the requirement for the place height is low, the construction place is tidy and clean, the construction process is safe, accident potentials are low, the pile forming quality is good, the bearing force is relatively high, and the method is suitable for construction carried out on places like chemical plants where pipelines are complex, the place limiting conditions are high and the construction process safety requirements are strict. According to the construction method, high-pressure rotary jet grouting piles are adopted, steel pipes are embedded into pile holes, the outer wall of a pipe body of each steel pipe is spirally wound by round steel so that the frictional resistance of the side wall can be increased, and therefore the bearing force of a mini pile is improved. Symmetrical bevel connectors are formed in the bottom of a bottom pipe and are beneficial to sinking of the steel pipes, and the construction efficiency is improved.

The invention relates to an LED display module detection device, which comprises a conveying track system, a detection room, an image detection cavity and a scanning device, wherein the conveying track system is used for conveying an LED display module and comprises a before-detection waiting position, an image detection position, a post-detection waiting position and a correction factor writing position; the detection room is used for providing a dark room environment and the image detection position is located in the detection room; the image detection cavity is arranged in the detection room and comprises a light transmitting part, a reflecting mirror and a detecting device; and the scanning device is used for recognizing LED display modules conveyed to the image detection position and the correction factor writing position. Thus, qualification detection on the LED display module such as an LED lamp board can be automatically completed, the brightness or the chromaticity of the LED lamp board can be automatically corrected, and compared with the existing manual detection method, detection of the invention is high in accuracy, quantization is easy, the efficiency is greatly improved, and the manual cost is saved; and as the reflecting mirror is adopted, the height of the device can be shortened, and requirements on the height of a plant are further reduced.

The invention discloses a steel pipe welding technology. A steel pipe assembly-welding device comprises an upright column, a cross beam and a main machine body, wherein two ends of the cross beam are connected with the upright column; a rotation shaft of the main machine body is connected with a turning support frame; the main machine body is arranged above the cross beam; a horizontal turning device is connected with the lower part of the main machine body; a positioning, clamping and lifting device is arranged on a joint part of the cross beam and the upright column; the steel pipe assembly-welding device is also provided with a traveling device. A novel mechanical structure and a system method are adopted so that the steel pipe assembly-welding device is suitable for various welding needs of different directions, unequal pipe diameters and similar structures, has rapid installation and movement functions and advantageously optimizes special pipe steel transportation roads and sites, the preparation time is reduced and the engineering investment is saved.

The invention relates to equipment for purifying gas by using an alcohol amine solution, and in particular relates to a multi-tower series-connected circulating amine solution regenerating device. The multi-tower series-connected circulating amine solution regenerating device is characterized by comprising a regenerating tower group which is formed by connecting at least two regenerating towers together, and a rich-poor solution heat exchanger (1), wherein an amine-rich solution inlet, an amine-rich solution outlet, an amine-poor solution outlet and an amine-poor solution inlet are formed in the rich-poor solution heat exchanger (1) respectively; the amine-rich solution outlet is communicated with an amine solution inlet in the top of the first regenerating tower in the regenerating tower group through a pipeline; the amine-poor solution inlet is communicated with an amine solution outlet in the bottom of the last regenerating tower in the regenerating tower group through a pipeline. According to the device, a multi-tower series-connected structure is adopted, so that the heights of the regenerating towers are effectively reduced, and requirements for mounting the regenerating towers are effectively reduced. The device is structurally integral, and modular; conditions are provided for implementation of the miniaturization and blocking of the device; the device is simple in process, and the number of equipment is small; acidic gas in an amine solution is thoroughly analyzed; the amine solution is stable in circulation, and the device can work under the normal pressure.

The invention provides a broken board antenna structure for a trace-free mobile phone. The broken board antenna structure comprises a first PCB and a second PCB, wherein the first PCB and the second PCB are associated with each other through line arrangement, slot coupling or coaxial line feeding connection and the like; the first PCB is grounded; and a metal part on the second PCB is taken as an antenna radiation body and is connected with a signal transceiver. By a broken board structure for the PCBs of the mobile phone, coated copper on the PCBs of the mobile phone and metal regions on components are taken as the antenna radiation bodies; an antenna trace does not need to arrange; and the antenna with the form is low in height demand, and has the advantages of high low-frequency bandwidth and high efficiency. Aiming at a light and thin mobile phone, the antenna form of the broken board mobile phone free of the trace can greatly reduce the development period and cost. The antenna structure is easy to achieve in technology; a printed antenna or a spring plate is not needed; the efficiency is improved; the cost is reduced; meanwhile, the adjustment flexibility is high; and debugging of the mobile phone form can be achieved through reasonably adjusting the component positions, the battery position and the matching position.