38results about How to "Relative displacement is small" patented technology

The invention discloses an electric bus power replacing robot system and a method. The system comprises a robot body and a robot console; the robot body comprises a mechanical part and an electric control part; the mechanical part comprises a horizontal moving unit arranged in the directions of three orthogonal coordinates X, Y and Z, a carrying platform unit and a bearing unit; the carrying platform unit comprises a carrying platform and a battery driving mechanism arranged on the carrying platform, and a battery push mechanism is arranged on the battery driving mechanism; the electric control part comprises a data acquisition device connected with a main control computer system, a power driving mechanism, an input / output (I / O) module and a wireless communication module I; and the wireless communication module I wirelessly communicates with a wireless communication module II in a control background and a wireless communication module III in a remote control device. By using a power replacing robot, the positioning precision of the power replacing process is high, the relative displacement is low, the position is accurate, and quick replacement of different electric bus power batteries is realized.

A double-column pier structure for joint application of rocking and seismic isolation relates to the technical field of seismic isolation of bridge engineering. The top and the bottom of a pier are concrete-filled steel pipe sections, and the ends are sealed by steel plates. The bottom surface of the pier is placed in a groove of a grooved steel cushion of an upper bearing platform and is only connected by an angle steel damper. The groove of the grooved steel cushion of the upper structure is placed on the top surface of the pier, a roller seismic isolation support is arranged between the upper bearing platform and a lower bearing platform, and check blocks are arranged at two ends of the lower bearing platform. The double-column pier structure not only achieves a basic seismic isolationeffect, but also rocks the pier to protect the pier from plastic hinges, and the damper is adopted to achieve the function of dissipating seismic energy, so that the bridge structure has good seismicperformance. By means of the reasonable design of the double-column pier structure, the bridge main body structure can be damaged less after an earthquake, the damaged angle steel damper is very convenient to replace, and the maintenance cost is low.

The invention discloses a screen image display method. The screen image display method comprises the following steps that an image display area of a display screen of a terminal is adjusted according to a preset display adjusting buffer area to make the image display area smaller than a physical display area of the display screen; data detected by a preset sensor is obtained, and whether the terminal moves or not is judged according to the detected data; if yes, the display amplitude and / or position of the image display area are / is adjusted according to the displacement of the terminal so as to reduce the relative displacement of display of a screen image displayed by the image display area and the human eyes. The invention further discloses a screen image display device. According to the screen image display method and device, vision fatigue caused by position transformation of the human eyes and the screen is effectively prevented, and the image display effect is improved.

The invention relates to the technical field of civil engineering, and particularly relates to a plug-in concrete filled steel tubular column and a construction method. The plug-in concrete filled steel tubular column comprises a cup-like foundation, a hollow column body, a positioning embedded part and a positioning regulating part; the column body is inserted into the cup-like foundation; the positioning embedded part is arranged at the cup bottom of the cup-like foundation and is connected with the bottom of the column body; the positioning regulating part is arranged above the cup-like foundation and is connected with the column body. The plug-in concrete filled steel tubular column has the beneficial effects that the column body is stabilized through the positioning embedded part andcan be accurately positioned, the vertical angle of the column body is adjusted through the positioning regulating part, and the column body can be further stabilized.

The invention discloses uniform batching equipment for enzyme preparation production, which comprises support legs, a discharge pipe, a swing cleaning mechanism and a material distributing and discharging mechanism; the swing cleaning mechanism is arranged at the upper end of a stirring shaft, a first air cylinder extends, and a second air cylinder contracts at the same time, so that the first aircylinder and the second air cylinder drive a connecting block to swing around the inner side of a bearing block through a transverse plate, a scraping plate is inclined and makes contact with the inner side of a burdening frame, then the scraping plate rotates to scrape and clean an enzyme preparation on the inner wall of the burdening frame, and the advantage that the enzyme preparation on the inner wall of the burdening frame can be rapidly removed is achieved; and the distributing and discharging mechanism is arranged at the upper end of the discharging pipe, and a distributing roller anda distributing plate at the upper end of a distributing mechanism are driven by a toothed bar rotating mechanism to rotate leftwards and rightwards by 90 degrees, so that the enzyme preparation is distributed and conveyed, then the enzyme preparation is guided and conveyed through a guide plate, and the advantages of distributing and conveying the enzyme preparation and preventing a discharge portfrom being blocked are achieved.

The invention relates to a package-type rubber vibration isolation cushion with limit function, comprising a limit rod, miniature rubber vibration isolation units, laminated steel plates and end plates; wherein a plurality of miniature rubber vibration isolation units are fixed between each two laminated steel plates, the limit rod is a soft steel rod with the section gradually changed, the end with larger section is fixed on a lower end plate, and the limit rod penetrates the limit holes on the intermediate laminated steel plates from bottom to top. The invention has the advantages of variable structure size, adjustable energy consumption capability, wide application range, simple manufacturing process, convenient transportation and flexible application, is applicable to standardization mass production of factory and field selecting and mounting by requirement and can be applicable to vibration resistance of structure and equipment, especially vibration resistance, vibration reduction and vibration isolation of special industrial equipment with small load and frequent field debugging.

A raw material distributing apparatus for producing ceramic tile is composed of a grate, a movable bottom plate under said grate, and a bottom grate under said movable grate. Its application includes such steps as filling the raw powder of ceramic tile in said grate, moving it to a position on a core mould, removing bottom plate to drop the raw powder in the core mould, dropping the core mould in a frame mould, removing said distributing apparatus, and leveling the surface of raw material in the frame mould.

The invention discloses a semi-rigid bridge anti-collision guardrail. The anti-collision guardrail comprises a plurality of guardrail steel framework structures which are sequentially connected, and the plurality of guardrail steel framework structures which are sequentially connected form a multiple arch structure; the guardrail steel framework structures comprise steel longitudinal beams, archedsteel pipes and two steel vertical columns, the two ends of the steel longitudinal beams are fixedly connected with the two steel stand columns respectively, and the two ends of the arched steel pipes are fixedly connected with the two steel vertical columns respectively; inhaul cables are anchored between the steel vertical columns at the two ends of the multiple arch structure; in the steel longitudinal beams, the arched steel pipes and the inhaul cables, the steel longitudinal beams are arranged close to one side of a bridge deck in the direction of the width of the bridge deck; the archedsteel pipes are arranged at a position,away from the bridge deck relative to the steel longitudinal beams; the arch tops of the arched steel pipes face one side of the bridge deck, steel pipe columnsfor transmitting force are connected between the arched steel pipes and the steel longitudinal beams, and the inhaul cables are arranged at a position far away from the bridge deck relative to the arched steel pipes. The problem that the anti-collision performance of the anti-collision guardrail is insufficient in the prior art is solved.

The embodiment of the invention provides a backlight module, a manufacturing method thereof and a display device, and relates to the technical field of display. The backlight module can reduce the probability of relative displacement of part of optical films. The backlight module comprises a composite layer, and the composite layer comprises a light guide layer and a first substrate which are oppositely arranged, and a plurality of first microprisms and a plurality of second microprisms which are located between the light guide layer and the first substrate. The multiple first microprisms arelocated on the surface of the side, close to the first substrate, of the light guide layer, and the extending directions of the multiple first microprisms are all parallel to the first direction. Thesecond microprisms are located on the surface of the side, close to the light guide layer, of the first substrate, and the extending directions of the second microprisms are parallel to the second direction. And the first microprism is fixedly connected with the second microprism.

The invention relates to a connecting structure for a salt inlet pipe and a molten salt storage tank of the molten salt storage tank. The salt inlet pipe extends into the tank top of the storage tank,at the top of the storage tank, and the salt inlet pipe is connected with the tank top of the storage tank through an expansion connection structure; in the middle of the storage tank, a vertical pipe section of the salt inlet pipe is connected with the inner wall of the storage tank through a salt inlet pipe support, the vertical pipe section can freely move in the radial direction of the storage tank during salt feeding of the salt inlet pipe; at the bottom of the storage tank, a horizontal pipe section of the salt inlet pipe is elastically connected with a bottom plate of the storage tankthrough an elastic support, one end of the elastic support is arranged on the bottom plate of the storage tank, the other end of the elastic support is used for supporting the horizontal pipe section,the salt inlet pipe is used for feeding salt, the horizontal pipe section can freely move in the vertical direction, the problems that in the prior art, due to the fact that the temperature of the molten salt pipeline is not synchronous with the temperature change of the storage tank, the thermal expansion amount of the storage tank and the thermal expansion amount of the salt inlet pipe are different, the service life of the storage tank is reduced, the damage risk of the connection part is increased and the like are solved.

The invention discloses a fabricated self-draining pipe culvert and an assembling method thereof. The fabricated self-draining pipe culvert comprises a plurality of pipe culvert units, and the plurality of pipe culvert units are sequentially spliced in the axial direction to form a complete pipe culvert; each pipe culvert unit comprises a plurality of assembling pieces and a bottom plate; the plurality of assembling pieces of each pipe culvert unit include a top piece and two side pieces, and the top piece is arranged between the two side pieces; the two ends of the top piece are provided withtop piece protrusions, the upper ends of the side pieces are provided with side piece grooves, and the top piece protrusions are mounted in the side piece grooves in a fitting manner; and drainage channels are arranged between the top piece protrusions and the side piece grooves, and the drainage channels between every two adjacent pipe culvert units communicate with one another. According to thepipe culvert, the top pieces are provided with the top piece protrusions, the side piece grooves are formed in the upper ends of the side pieces, during splicing, the top piece protrusions are connected with the side piece grooves in a fitting manner, the top piece protrusions do not fit with the side piece grooves completely, the drainage channels are arranged in the splicing longitudinal seams,water seepage at the splicing longitudinal seams is gathered and discharged through the drainage channels, and the water seepage is prevented from entering the pipe culvert from the splicing longitudinal seams of the pipe culvert units.

The invention relates to an overhauling tool for transmission line working at heights, in particular to an overhauling tool for high-altitude live working of a 750kV transmission line. The overhauling tool comprises a base platform, two insulator clamping supports and a hoisting support. The lower portions of the two insulator clamping supports are arranged at the left end and the right end of the base platform, arc-shaped clamping supports are arranged at the upper ends of the insulator clamping supports, the upper ends of the arc-shaped clamping supports are connected to the left end and the right end of the hoisting support through connecting arms, and a hoisting hole is arranged at the position of the center of the hoisting support. The base platform, the insulator clamping supports, the hoisting support and the connecting arms are made of insulating epoxy resin, the base platform is in riveted connection with the insulator clamping supports through insulating epoxy resin rivets, and the connecting arms are in riveted connection with the insulator clamping supports and the hoisting support through insulating epoxy resin rivets. The overhauling tool is good in insulation performance, simple to install and convenient to process, an occupied space is small in operation, overhauling efficiency is high, workers can carry a clamp in a standing posture, the force-applying radius can be reduced when the workers carry the clamp, and safety in operation is guaranteed.

The invention relates to a vibration isolation device for hanging equipment. The vibration isolation device is used for hanging the equipment on a crossbeam and comprises a steel wire rope vibration isolator and a transfer support, and the steel wire rope vibration isolator comprises an upper fixing plate, a lower fixing plate and a plurality of hoop-shaped steel wire ropes. The vibration isolation device is characterized in that the transfer support comprises a first transfer plate and a second transfer plate, the upper fixing plate is connected with the equipment through the first transfer plate, and the lower fixing plate is connected with the crossbeam through the second transfer plate. The vibration isolation device is simple, compact and reasonable in structure, when the vibration isolation device is used for hanging the equipment, the steel wire rope vibration isolator still can be stressed in a compression direction only, so that the integral vibration isolation property of the steel wire rope vibration isolator is greatly increased, and the service life of the steel wire rope vibration isolator is greatly prolonged.

The invention discloses an automatic demolding type replaceable plastic injection mold which comprises a demolding guide rod support (1), a thrust block (2), a first demolding rod (301), a second demolding rod (302), a push rod (4), a first limiting rod (5), a first mold holder (6), a second limiting rod (7), a second mold holder (8), a sprue bush sleeve (9), a first mold (1001) and a second mold (1002), wherein two ends of the push rod (4) are fixedly connected with the thrust block (2) and the first mold holder (6) respectively; the first mold (1001) and the second mold (1002) are respectively arranged on the first mold holder (6) and the second mold holder (8) through screws; a first demolding through hole (1201) and a second demolding through hole (1202) are respectively formed in the upper edge and the lower edge of the first mold (1001). The structure can be suitable for different injection molds, and the injection mold is convenient to replace. With the double limiting rods, the injection mold is precisely positioned and is prevented from moving.

The invention discloses a special deep groove ball bearing and a grouping method thereof. The special deep groove ball bearing comprises an outer ring, an inner ring, a steel ball and a holder. The steel ball is connected between a groove of the outer ring and a groove of the inner ring in a clamped manner. The holder comprises a first holder body and a second holder body. The first holder body and the second holder body are arranged on the steel ball in a sleeving manner and connected through a rivet. The special deep groove ball bearing is characterized in that the clearance of the outer diameter of the holder and the inner diameter of the outer ring is smaller than that of the inner diameter of the holder and the outer diameter of the inner ring. The grouping method comprises the following steps that the outer diameter dimension D and the inner diameter dimension d of the special deep groove ball bearing are measured; the standard tolerances of the outer diameter dimension D are evenly divided into n groups; the standard tolerances of the inner diameter dimension d are evenly divided into m groups; and the n groups of the outer diameter dimension D and the m groups of the inner diameter dimension d are subjected to permutation and combination, the total grouping number N of the special deep groove ball bearing is obtained, and N=n*m. According to the special deep groove ball bearing and the grouping method, the mounting steps of the bearing can be simplified, and the service life of the bearing can be prolonged.

The invention discloses a fuel cell microporous layer continuous printing equipment and printing process. The equipment includes a conveyor belt assembly, a printing processing area, a detection area, a brushing processing area, a secondary detection area, a non-conforming product marking area, and a mechanical arm sorting area , to realize the integrated intelligent operation process of printing, drying, testing, brushing, marking, and picking of the microporous layer, which improves work efficiency; At the same time, the metal support area composed of metal flakes can support the microporous layer during printing; the printing processing area and the brushing processing area are equipped with vacuum adsorption boxes with electromagnetic sheets, which can adsorb the metal support. Pre-positioning to ensure that there will be no shaking of the conveyor belt during the printing process and ensure the stability of the printing process.

The invention discloses a semi-rigid bridge anti-collision guardrail, which comprises a plurality of guardrail steel skeleton structures connected in sequence, and the guardrail steel skeleton structures connected in turn form a continuous arch structure; the guardrail steel skeleton structure includes steel longitudinal beams and arched steel pipes and two steel columns, the two ends of the steel longitudinal beam are respectively fixedly connected with the two steel columns, and the two ends of the arched steel pipe are respectively fixedly connected with the two steel columns; anchor between the steel columns at the two ends of the linked arch structure There are cables; among the steel longitudinal beams, arched steel pipes and cables, along the width direction of the bridge deck, the steel longitudinal beams are set close to the side of the bridge deck; the arched steel pipes are set at a distance from the bridge deck relative to the steel longitudinal beams The position of the arched steel pipe is towards the side of the bridge deck, and the steel pipe column for force transmission is connected between the arched steel pipe and the steel longitudinal beam; the cable is set at a position farther away from the bridge deck than the arched steel pipe . The problem of insufficient anti-collision performance of the anti-collision barrier in the prior art is solved.

The invention discloses integrated detection equipment for performance parameters of an automobile window lifting system. The equipment comprises a support frame, a control panel, a power supply wire, a fixed disc, a guide seat, a support seat, a cylinder, a detection head and a pushing mechanism. The pushing mechanism is arranged at the upper end of the fixing disc, the motor is powered on to work, and the screw is driven to rotate on the inner side of the bearing seat; a screw rod is in threaded transmission on the inner side of a movable sleeve, so that the movable sleeve and a movable plate are driven to horizontally move, a pushing plate drives a part to move at the upper end of a guide seat through friction force, and the advantage that the part can be quickly driven to move is achieved; in addition, a pushing plate is arranged at the upper end of a pushing mechanism, an anti-sliding block can make contact with the bottom of the component, and the anti-sliding block can be driven to be tightly attached to the bottom of the component through elastic potential energy generated when a reset spring recovers deformation. Therefore, the equipment drives the component to move through friction force, and the advantage that the component can be conveniently driven to move is achieved.

The invention relates to a three-way position limiting steel spring vibration isolator. The three-way position limiting steel spring vibration isolator comprises an upper shell (1), a steel spring set(2), a lower shell (3), an external position limiting device and an internal position limiting device, wherein the external position limiting device comprises an external position limiting rod (9) and a first sliding wedge block (8), the bottom of the external position limiting rod (9) is fixed to the lower shell (3), and the top of the external position limiting rod (9) is matched with the firstsliding wedge block (8) to perform up and down movement; and the internal position limiting device is installed inside the lower shell (3) and comprises a position limiting cylinder (4), a second sliding wedge block (5) and a threaded rod (6), and the position limiting cylinder (4) is matched with the second sliding wedge block (5) to perform the up and down movement. Compared with the prior art,by means of the three-way position limiting steel spring vibration isolator, a vibration isolator axial-direction position limiting height adjustable function can be realized, the same upper and lower position limiting clearance can be guaranteed aiming at different load conditions, furthermore, radial stiffness is provided through circumferential coordination between the upper shell and the lower shell, and the vibration isolator is made to have a three-way position limiting function.

The invention discloses an electric bus battery quick-change robot system and a quick-change method. The electric bus battery quick-change robot system comprises a robot body, the robot body consists of a mechanical portion and an electric control system, wherein the mechanical portion comprises a horizontal moving unit, a carrying platform unit and a bearing unit which are arranged on an X rectangular coordinate direction, a Y rectangular coordinate direction and a Z rectangular coordinate direction, the carrying platform unit comprises a carrying platform and a battery driving mechanism disposed on the carrying platform, and a battery pushing mechanism is arranged on the battery driving mechanism; and the electric control portion comprises a data acquisition device, a power driving mechanism and an I / O (input / output) module, and the data acquisition device is connected with a master control computer system. When the quick-change robot is applied, positioning precision in a quick-change process is high, relative displacement is low, positions are accurate, and power batteries of various electric buses can be quickly changed by the aid of the electric bus battery quick-change robot system.

The invention relates to the technical field of gas pipelines, and specifically discloses a large-displacement protection device for gas pipelines, which includes metal bellows located between adjacent gas pipelines, and flanges connected to the gas pipelines are fixed at both ends of the metal bellows , there are several groups of protection structures distributed in a circular array between adjacent flanges. The protection structure includes several sections of protection columns. Both ends of the protection columns are provided with elliptical chambers, and buffer balls are slidingly connected in the chambers. In addition, a spring is fixed between the inner wall of the chamber and the buffer ball; connecting balls are arranged between adjacent protective columns, and both ends of the connecting ball are provided with an elliptical buffer chamber, and a deflection ball is arranged in the buffer chamber, and the deflection ball and the buffer A spring is fixed in the cavity, and a connecting rod is fixed between the deflection ball and the adjacent buffer ball; the invention aims to solve the problem of gas leakage caused by gas pipeline rupture due to large displacement caused by earthquakes.

The invention relates to a glue gun positioning auxiliary device and a glue gun structure, which includes: a support frame; an angle adjustment mechanism for fixing the glue gun, which is installed at one end of the support frame, and the angle adjustment The mechanism can rotate relative to the support frame; and the limit mechanism for limiting the workpiece is installed at the other end of the support frame. The invention relates to a glue gun positioning auxiliary device and a glue gun structure, which can fix the glue gun on the angle adjustment mechanism, and the angle adjustment mechanism can rotate relative to the support frame, thereby driving the glue gun relative to the support frame Rotation, therefore, can make the glue gun move or deflect the angle, and increase the glue coating range.

The invention relates to a three-dimensional shock-isolation support, which belongs to the field of shock-isolation technology and solves the problem of poor vertical shock-isolation performance stability of the shock-isolation support in the prior art. The three-dimensional vibration isolation support includes a horizontal vibration isolation device and a vertical vibration isolation device, and the horizontal vibration isolation device is combined in series with the vertical vibration isolation device; the vertical vibration isolation device includes an annular spring and a guide sleeve, The ring spring is arranged in the guide sleeve; the ring spring includes a first group of ring springs and a second group of ring springs, the outer diameter of the second group of ring springs is smaller than the inner diameter of the first group of ring springs, and the first group of ring springs has an inner diameter smaller than the first group of ring springs. One group of ring springs, the second group of ring springs are arranged coaxially with the guide sleeve. The device of the invention can not only isolate the horizontal earthquake action, but also can effectively isolate the vertical earthquake action, and the three-dimensional seismic isolation support meets the engineering requirements.

The invention discloses a method for obtaining the minimum path of the joint space rotation angle of a mechanical arm, which belongs to the field of modern intelligent manufacturing technology, and relates to a method for obtaining the minimum path of the joint space rotation angle of a mechanical arm in the field of industrial robots. This method first combines the chaos phenomenon to construct an iterative starting point set that can converge to all inverse kinematics solutions corresponding to a single pose of the manipulator, and then brings the iterative starting points into the LM iterative algorithm to solve the inverse kinematics solution. And eliminate the repeated results and the results beyond the range of motion of each joint of the manipulator, and obtain all the feasible solutions of inverse kinematics corresponding to a single pose. Then, all the feasible solutions of inverse kinematics are obtained in turn, and all feasible solutions of the joint space motion path are obtained; finally, a search algorithm is established to calculate the minimum path of the joint space rotation angle of the manipulator. This method effectively avoids the problems of sudden changes in the path position and large displacement in the joint space, has the characteristics of high calculation accuracy and smooth path, and is more in line with the actual work requirements of the manipulator.

The invention provides a thermal stress eliminating structure which is characterized in that a shrinkage gap is formed between an installation sinking groove and a T-shaped connector under the normal temperature condition, the shrinkage rate of a main pressing plate is set to be smaller than that of a main shrinkage body, the shrinkage amount of the main shrinkage body is larger than that of the main pressing plate under the low temperature condition, and after the main shrinkage body shrinks, the two installation sinking grooves on the main shrinkage body are close to each other; the relative displacement amount of the first main bearing component and the second main bearing component is smaller than the shrinkage amount of the main shrinkage body due to supporting of the main pressing plate, and a shrinkage gap for sliding of the T-shaped connector is reserved in the shrinkage direction of the main shrinkage body, so that the mounting sinking groove is filled and pressed in the sliding direction of the T-shaped connector, and the T-shaped connector is prevented from being damaged. Stress transmitted to the first main bearing component and the second main bearing component by synchronous contraction of the two components is avoided, stress concentration is avoided, and the safety of the supporting structure is guaranteed.