111results about How to "No relative sliding" patented technology

The invention belongs to the technical field of lithium ion batteries, and in particular relates to a lithium ion battery cell which comprises at least two positive electrode plates, at least two negative electrode plates, a first wound membrane and a second wound membrane, wherein the positive electrode plates and the negative electrode plates are mutually overlapped, and the difference of the number of the positive electrode plates and the number of the negative electrode plates is one; the positive electrode plates are arranged at the same side of the first membrane; the negative electrode plates are arranged at the same side of the second membrane; and at the direction from the innermost circle to the outermost circle of the battery cell, the first membrane and the second membrane are alternatively arranged between the adjacent positive electrode plates and the negative electrode plates at intervals. Compared with the prior art, the lithium ion battery cell has the advantages that the parallel connection multiple layers of electrode plates provided by the invention can be used for reducing the internal resistance of the battery cell, thus the polarization is reduced, and the discharging platform is improved; the parallel connection of the electrode plates can be used for improving the high-multiplying-power charging and discharging capability of the battery cell; and because the electrode plates of the battery cell provided by the invention are stacked together, the internal structure is unified, the stress is distributed uniformly, the possibility of deformation is small. In addition, the invention also discloses a preparation method of the battery cell.

The invention discloses a novel automatic rotation stir-frying induction cooker. The novel automatic rotation stir-frying induction cooker comprises a shell, a pot and a heating coil and is characterized by further comprising a scooping mechanism and a power mechanism, wherein the scooping mechanism conducts stir-frying close to the pot body, and the power mechanism can drive the pot body to rotate or swing. Due to the fact that automatic stir-frying can be conducted simply under power provided by a scoop motor and a driving motor, multiple stir-frying modes can be realized simply through the rotation of the motors, and no complicated mechanical arm structure is adopted, the structure is simple, it can be guaranteed that a scoop makes contact with the pot body all through the stir-frying process, stir-frying efficiency is improved, and the pot can rotate, swing in one direction or swing in any direction through different movement states of the power mechanism.

The invention discloses a full-automatic wood nailing machine. The full-automatic wood nailing machine comprises a frame; a conveying frame and a nailing bracket are arranged on the frame; the conveying frame includes a left conveying frame and a right conveying frame; the nailing bracket includes a nailing transverse frame and a nailing vertical frame; the nailing vertical frame includes a left nailing vertical frame and a right nailing vertical frame; the nailing transverse frame is positioned between the left nailing vertical frame and the right nailing vertical frame; a nailing device is arranged on the nailing transverse frame, and includes a moving mechanism and a nailing mechanism; the moving mechanism is connected with the nailing mechanism; the moving mechanism is mounted on the nailing transverse frame; a clamping device is mounted on the nailing vertical frame; a conveying device is arranged between the left conveying frame and the right conveying frame, and includes a conveying transmission mechanism and a conveying mechanism; and the conveying transmission mechanism is connected with the conveying mechanism. The machine is simple in structure, scientific, convenient, strong in pertinency and high in automation degree, can automatically transport and position nailed boards, and preferably solves the board nailing problem.

The invention relates to a corner protection structure for a solar battery component, for protecting the corners of the solar battery component. The corner protection structure comprises a corner protecting plate which is arranged at the tops of adjacent first and second frames of the solar battery component; a first outer protecting plate which is arranged on an outer side wall of the first frame and a second outer protecting plate which is arranged on the outer side wall of the second frame are arranged on the corner protecting plate; a first lateral edge which is parallel to the first outer protecting plate and a second lateral edge which is parallel to the second outer protecting plate are arranged on the corner protecting plate; a first inner protecting plate is arranged at the bottom of the first lateral edge; the bottom end of the first inner protecting plate is inclined along a direction away from the first outer protecting plate; a second inner protecting plate is arranged at the bottom of the second lateral edge; and the bottom end of the second inner protecting plate is inclined along the direction away from the second outer protecting plate. The corner protection structure for the solar battery component provided by the invention is used for preventing the corners of the solar battery component from being scratched, ensuring that the relative sliding among various solar battery components is avoided, and ensuring that the solar battery components are not damaged.

The invention provides an intelligent pipeline climbing robot. The robot comprises a rack, a drive device, an auxiliary device, a lead screw mechanism, a conical transmission part and three caterpillar bands and is characterized in that first square sleeves are fixedly mounted at the end of the left side of a first fixing frame, sliding wheels are rotatably mounted at the inner ends of first sliding rods, the right end is rotatably mounted on the lead screw fixing frame, a stepping motor drives the conical transmission part to do linear motion, and meanwhile the first sliding rods compressing a conical shell side outwards; the lead screw mechanism and the conical transmission part are adopted to enable first wheels and second wheels to be pressed on the inner wall of a pipeline, and therefore the caterpillar bands and the inner wall of the pipeline cannot generate relative sliding; the drive device drives the robot to climb in the pipeline, other machining devices are mounted on the robot, and the machining process can be more easily and efficiently completed.

The spinning device with sheath-core structure for core-spun yarn comprises: a frame, and a tension balancer to control yarn tension by regulating the rotator speed and even the heart yarn speed. Thereby, as long the surface holding force of rotator is large well enough, it can holds the heart yarn and ensures no relative slip. This invention is hard to be disturbed and can be obtained by simple improvement on current device.

The invention relates to industrial automatic equipment, in particular to an automatic manipulator. A trace-driven manipulator comprises a servo motor, a rack, a cam mechanism, a shifting fork and a movement component. The servo motor is fixedly connected to the rack. A coupler is fixedly connected to an output shaft of the servo motor. The shifting fork is fixedly connected to the tail end of the coupler. The movement component is movably connected to the tack. The shifting fork is movably connected to the movement component. The trace-driven manipulator is suitable for achieving material transferring and conveying during machine manufacturing. According to the trace-driven manipulator, lightweight design is achieved, and the servo motor serves as a driving source, so that a preconceived two-dimensional movement space of the manipulator is produced. Movement traces of the manipulator can be changed rapidly by changing the center line of a cam groove.

The invention provides an interactive semi-automatic grating surface defect detection device and a method using the device, and relates to a defect detection device and the method using the device. The problems that an existing grating surface defect detection device is low in detection precision, low in detection efficiency, poor in anti-interference performance and high in cost are solved. According to the detection device, a motion control cabinet, a grating surface unfolding unit and a first image collecting system unit are sequentially arranged on a detection worktable from left to right in parallel, and a second image collecting system unit and the first image collecting system unit are connected. The defect detection method has the advantages of being high in automation degree, high in detection precision and detection efficiency, high in objectivity and not prone to causing eyestrain. Alignment of the position of a grating to be detected is achieved by driving an electric two-dimensional translation table, and the alignment mode has the advantages of being high in objectivity, high in positioning precision and good in stability compared with manual alignment. The device and the method are used for interactive semi-automatic grating surface defect detection.

The invention discloses a double-jack-stay inwards-concave rope arch structure. The double-jack-stay inwards-concave rope arch structure comprises an upper chord beam, a lower chord stay cable and jack stays, wherein the lower chord stay cable is composed of multiple sets of short stay cable bodies, the short stay cable bodies and the upper chord beam are located in the same plane, each set of short stay cable bodies includes two stay cable bodies, the lower ends of every two corresponding cable bodies are connected to form the shape of V, and the upper ends of every two corresponding cable bodies are hinged to the upper chord beam; two jack stays are upwards arranged between the connecting points between the lower ends of every two corresponding stay cable bodies and the upper chord beam, and arranged on the two sides of the angular bisector of the two corresponding stay cable bodies symmetrically, and the rear stay cable body in a previous set of short stay cable bodies and the front stay cable body in a later set of short stay cable bodies are arranged in a crossed mode. According to the double-jack-stay inwards-concave rope arch structure, a traditional long stay cable is omitted, the multiple stay cable bodies are used instead, after one stay cable body loses efficacy, the whole structure cannot immediately lose efficacy due to the connection relation between other stay cable bodies and the upper chord beam and the connection relation between the stay cable bodies and the jack stays, the anti-collapse performance is improved, continuous collapse can be prevented, and the potential safety hazards are eliminated.

The invention provides an annular drill pipe power tong. The annular drill pipe power tong comprises a base and a clamping mechanism; the base comprises a central through hole; the clamping mechanism comprises a driving assembly, a gland assembly that can be driven by the driving assembly to move in an axial direction of the central through hole, a plurality of power tong slips distributed in a circumferential direction of the central through hole, and a connecting rod, wherein one end of the connecting rod is hinged to the gland assembly, while the other end of the connecting rod is hinged to the power tong slips; when the driving assembly drives the gland assembly to move in the axial direction of the central through hole, the gland assembly is capable of driving the power tong slips to close in or expand in a radial direction of the central through hole through the connecting rod. The annular drill pipe power tong is capable of clamping a drill pipe in a continuously circular drilling process, and providing enough clamping force to the drill pipe to ensure no relative sliding between the annular drill pipe power tong, the drill pipe and the clamping mechanism after the drill pipe is clamped and to guarantee that an indentation of the drill pipe is as small as possible.

A straightening-ring locking device combining taper sleeve expansion and key transmission comprises a straightening roll, a straightening ring, an inner taper sleeve, an outer taper sleeve, a transmission key, a spline sleeve, a pull rod, a fixing nut, a hydraulic nut, a pressure-bearing nut, a lock nut and a safety nut. A cantilever shaft of the straightening roll is sleeved with the inner taper sleeve. The inner face of the conical face sleeve section of the inner taper sleeve is matched with the face of the conical face shaft section of the cantilever shaft of the straightening roll. The inner taper sleeve is sleeved with the outer taper sleeve. The conical face sleeve section of the outer taper sleeve is matched with the outer conical face of the conical face sleeve section of the inner taper sleeve. The straightening ring is installed outside the outer taper sleeve. The pull rod is fixed to the cantilever shaft of the straightening roll through the fixing nut. The pull rod is sleeved with the hydraulic nut. A front piston and a rear piston are arranged at the front end and the rear end of the hydraulic nut respectively. A spline sleeve installation groove is formed in the outer circumference of the hydraulic nut. The pressure-bearing nut is screwed on the pull rod through an internal threaded hole. The lock nut is screwed on an external thread of the pressure-bearing nut. The straightening-ring locking device combining taper sleeve expansion and key transmission has the beneficial effects that the straightening ring is installed and replaced conveniently and quickly, the wide straightening ring can be installed, and locking is safe and reliable.

The invention discloses a dismantling wrench for an outer hexagonal bolt, which includes a clamping portion for fixing the bolt, the bottom of the clamping portion is provided with an opening for the nut of the outer hexagonal bolt to enter the interior of the clamping portion, and the interior of the clamping portion is provided with a vacuum suction cup , the suction rod of the vacuum suction cup is located above the clamping part, and a rotating rod is connected above the clamping part. The rotation of the rotating rod is controlled by a motor installed at one end of the rotating rod. One bottom edge of the clamping part is hinged, and the center of the lower cover is provided with a through hole for the outer hexagonal bolt and screw to pass through. The lower cover is composed of a cover A and a cover B hinged with the cover A. The cover A, the cover The boards B are provided with grooves forming through holes. The present invention can firmly fix the nut of the bolt inside the clamping part through the interaction between the vacuum suction cup and the lower cover, and the nut and the inside of the clamping part will not slide relative to each other, and the bolt will not be separated during the rotation process. clamping part.

The invention discloses a PVC pipe thread wire drawing device with inner and outer clamping functions. The PVC pipe thread wire drawing device structurally comprises a cantilever crane, a clamping structure, a gear box, a speed reducer, a brake and a motor. The clamping structure is arranged right in the middle of the top surface of the gear box. A screw tap is further arranged on the same axis with the clamping structure. A cantilever crane is arranged on one side of the gear box. The speed reducer is arranged at the bottom of the side surface of the gear box and cantilever crane and is mechanically connected with the motor through the brake. The motor and the speed reducer are arranged on the same axis. An outer clamping sleeve and an outer expanding inner clamping sleeve are used for locking a PVC pipe from the outside. The PVC pipe is stably fixed in an inner side outer expansion mode. It is ensured that relative sliding between the outer clamping sleeve and the outer expanding inner clamping sleeve is not generated. Finally, it is realized that relative sliding is not generated during thread wire drawing of the PVC pipe, namely, the thread wire drawing depth is proper. The product percent of pass is high.

The invention provides a clamping structure for quartz rods. The clamping structure for quartz rods comprises the quartz rods and fixing circular discs fixedly arranged at two opposite ends of the quartz rods. One side, opposite to one side of each quartz rod, of each fixing circular disc is equipped with a positioning hole. Positioning holes can cooperate with thimbles on a lathe such that the clamping structure for the quartz rods is arranged on the lathe. There is no need to arrange positioning holes at two ends of each to-be-machined quartz rod. Positioning holes are necessarily arranged in the fixing circular discs. The fixing circular discs are relatively fixed with the quartz rods. During the rotating process of the quartz rods, relative sliding does not occur.

The invention discloses a cutting device for automobile shaft parts. The cutting device for automobile shaft parts comprises a base plate, a hydraulic cylinder, clamping mechanisms, a cutting mechanism and a measuring mechanism. The hydraulic cylinder is fixed to one side of the base plate. The end, with the output shaft, of the hydraulic cylinder is fixedly connected with one clamping mechanism.The cutting mechanism is arranged on the sides, away from the hydraulic cylinder, of the clamping mechanisms. The clamping mechanisms are arranged on both the two sides of the cutting mechanism. The bottom end of the side face, facing the cutting mechanism, of one clamping mechanism and the bottom end of the side face, facing the cutting mechanism, of the other clamping mechanism are fixedly connected through a connecting plate. A shaft part is clamped between the upper parts of the two clamping mechanisms. The measuring mechanism is arranged below the hydraulic cylinder. One end of the measuring mechanism is fixed to the side, close to the hydraulic cylinder, of the base plate. The cutting device for automobile shaft parts can be fixed to an automobile shaft part to carry out cutting on the automobile shaft part, cutting is stable, and the cutting accuracy is high.

The application provides a pen core for an active pen and an active pen.The pen core for the active pen of the application comprises a pen point assembly; a pressure detection device which is connected with the pen point and is used for sensing and determining the pressure information from the pen point assembly; and a support frame which is used for containing the pen point assembly and the pressure detection device; wherein the support frame is provided with a threaded hole therein; the support frame is connected with the pressure detection device through the threaded hole in a threaded mode. According to the active pen and the pen core struction for the active pen of the application, the pressure detection device will not slide during the usage of the active pen or falling and has good stability.

The invention discloses an electrophysiological signal fabric collection device, and belongs to the technical field of signal collection, aiming at solving the problems of the prior art that the operation is complicated, skin allergy is easy to cause and the like. The electrophysiological signal fabric collection device comprises a matrix, an anti-ski base layer arranged on the inner surface of the matrix and a conductive fabric layer arranged on the inner surface of the anti-skid base layer, wherein the anti-skid base layer at least covers the periphery of the conductive fabric layer; and the conductive fabric layer is in electric connection or signal connection to a controller. According to the electrophysiological signal fabric collection device, the conductive fabric layer is stably and closely contacted with skin, and cannot generate relative sliding, so that the steps of applying conductive paste, adhesive and the like to electrodes one by one can be reduced, preparation time for signal collection can be greatly reduced, a subject has high comfortable feeling, the using cost is low, and body allergy does not need to be worried; and the conductive fabric layer is closely contacted with skin, so that the signal collection has high quality.

The invention discloses a self-balance soil body frost heaving amount testing device and a testing method. The device is commonly composed of an upper bucket body and a lower fixed support. The upperbucket body is commonly formed by two layers including inner and outer walls made of transparent polyethylene and the inner wall and the outer wall are tightly stuck together and do not slide oppositely. The inner surface of the inner wall of the bucket body is smooth and the outer surface of the inner wall of the bucket body is relatively rough. The outer surface of the outer wall of the bucket body is of a spiral corrugated shape and the surface of the outer surface is smooth; a spiral steel wire is wound in a wave trough of a corrugated tubular product of the outer wall of the bucket body;the steel wire and the outer wall can slide relatively. A top plate and a bottom plate of the upper bucket body are made of organic glass materials with light weight and high strength; the lower fixedsupport is made of an alloy material with light weight and high strength. The testing device disclosed by the invention is simple in structure; an independent pressurizing device is not needed; the self-balance soil body frost heaving amount testing device is convenient to operate and has a wide application range.

The invention relates to an automatic glue winding machine for plates, which comprises a rack, a workbench, a material pushing mechanism, a centering clamping mechanism, a material supporting lifting mechanism, two glue winding mechanisms and a discharging mechanism, the workbench, the material pushing mechanism and the material supporting lifting mechanism are sequentially arranged in the middle of the rack from front to back, the centering clamping mechanism is arranged above the material supporting lifting mechanism. The discharging mechanism is arranged below the material supporting and lifting mechanism, the two adhesive tape winding mechanisms are arranged on the left side and the right side of the rack correspondingly, the workbench is horizontally arranged and connected with one end of the material pushing mechanism, and the workbench is used for containing a blank. The glue winding machine fills the blank of a glue winding machine in the bus industry, solves many problems existing in manual glue winding of the bus, can achieve glue winding work of the ends of the buses of different specifications, integrates bus transportation, end glue winding and automatic discharging, achieves continuous operation, is free and adjustable in glue winding angle and convenient to operate, and improves the production efficiency. The mechanization and automation degree of bus glue winding is improved.

The invention discloses a concave cable-arch structure. The concave cable-arch structure comprises an upper chord beam, a lower chord inhaul cable and a supporting rod. The lower chord inhaul cable is composed of a plurality of sets of short inhaul cables. The short inhaul cables and the upper chord beam are located in the same plane. Each set of short inhaul cables comprises two stay cables, wherein the lower ends of the two stay cables are connected together to be of a V type, the upper ends of the two stay cables are hinged to the upper chord beam, the connecting point of the lower ends of the two stay cables is upwards provided with a supporting rod between the connecting point and the upper chord beam, and the supporting rod is arranged on the angular bisector of the two stay cables arranged in the V type. A rear stay cable of a last set of short inhaul cables is crossed with a front stay cable of a next set of short inhaul cables. Traditional long inhaul cables are omitted and replaced with the stay cables, when a certain stay cable loses efficacy, the whole concave cable-arch structure will not immediately lose efficacy due to the connecting relation between the other stay cables and the upper chord beam and between the other stay cables and the supporting rods, collapse resistance is improved, continuous collapse can be avoided, and potential safety hazards are eliminated.

The invention relates to a positioning device used for a pre-embedded part of a quick spring-bar fastener, comprising a sleeper mould soleplate used for fixing the pre-embedded part of the quick spring-bar fastener. 'Sunken' glyph pre-set holes which are symmetrical to two sides of a rail are cut on the sleeper mould soleplate, and sealing glue strips are fixed around hole walls of the 'Sunken' glyph pre-set holes and the holes are fixed by a mould fixing pressing-board and bolts, and the pre-embedded part of the quick spring-bar fastener is positioned in the 'Sunken' glyph pre-set holes. Projecting parts corresponding to the concave parts of the 'Sunken' glyph pre-set holes on the sleeper mould soleplate are adopted as sliding channels, a sliding pressing-sheet is respectively arranged in the internal part of the sliding channels, the outer ends of the sliding pressing-sheets are extended into the 'Sunken' glyph pre-set holes, the inner ends of the sliding pressing-sheet are connected with springs, the other ends of the springs are connected with the bolts, and a cover is fixed with bolts above the sliding channel. A positioning adjusting block is fixed on a positioning device fixing soleplate welded on the sleeper mould soleplate to quickly and accurately position the pre-embedded part of the quick spring-bar fastener onto the concrete sleeper mould so as to guarantee the quality of products.

The invention discloses a movable adjustable supporting seat. The movable adjustable supporting seat comprises a supporting seat body, a supporting rod and a top plate; the supporting seat body comprises a bottom plate and a limiting pipe vertically fixed to the bottom plate, and the supporting rod is screwed in the limiting pipe; and the top plate is fixed to the end, away from the supporting seat body, of the supporting rod, and the top plate is parallel to the plate face of the bottom plate. According to the movable adjustable supporting seat, by arranging the supporting seat body and the supporting rod in threaded connection with the supporting seat body, the supporting rod can be telescopically adjusted in the supporting seat body, and it can be guaranteed that the height of the supporting seat is adjustable through the arrangement; through the arrangement of the top plate and the bottom plate, the contact area between the supporting seat and the supporting surface and the ground can be increased, the supporting stability of the supporting seat is guaranteed, and the arrangement is simple in structure and convenient to disassemble.

The invention discloses a tube bending machine applied to steel tube production. The tube bending machine comprises a machine frame and a working table. The working table is located on the machine frame. A bent guide rail and a bent table are arranged on the working table. A clamping device is connected between the bent table and the bent guide rail and comprises clamping control chambers and clamping bases. The clamping control chambers comprise the inner clamping control chamber and the outer clamping control chamber. The clamping bases comprise the inner clamping base and the outer clamping base. A bent sliding block is arranged on the bent guide rail, the upper end of the bent sliding block is connected with the outer clamping control chamber, and the outer clamping control chamber is fixedly installed on the bent sliding block. The inner clamping base is connected with an inner arc inclined rail. The outer clamping base is connected with an outer arc inclined rail. A rotating shaft is arranged at the lower end of the bent table and connected with a power driving device. Through the clamping device, the inner clamping base and the outer clamping base cooperate to clamp a tube to be bent so as to make preparations for bending the tube to be bent; through the bent guide rail and the bent sliding block, the outer clamping chamber can work along with the outer clamping base in the process of bending the tube to be bent.

The invention relates to a standardized component for assembling a pet house / furniture / mobile room, which comprises a panel and a connecting strip, wherein the panel comprises four side edges, and each side edge is provided with a raised strip; the connecting strip is formed through extrusion molding, any cross section of the connecting strip is equal, and the four side walls of the connecting strip are respectively provided with slots matched with the raised strips. The component can also comprise a panel and a connecting strip, wherein the side edge of the panel is provided with a slot, the side walls of two adjacent slots are connected into a whole, and two slots of two edges at corners of the panel are mutually communicated and overlapped. The component also comprises an insertion block for connecting the panel and the connecting strip, one end of the insertion block is inserted into the slots of the panel, and the other end is inserted into the slots of the connecting strip. The connecting strip provided by the invention can be directly formed through extrusion molding and has convenience for production and low cost. The panel can freely extend along with the four side directions of the connecting strip and can be assembled into various kinds of pet houses, furniture and mobile rooms. The pet houses, furniture and mobile rooms are very convenient for assembly, disassembly and transportation.

The invention provides a trans-cavity surgical robot operating arm system, a robot and a method. The trans-cavity surgical robot operating arm system comprises a driving module and an axial transmission module, the axial transmission module comprises a quick change mechanism, the quick change mechanism is provided with a clamping structure and a cavity, a transmission shaft capable of moving in the radial direction is arranged in the cavity, and the transmission shaft has the axial rotation freedom degree when moving to a set area. the driving module comprises a connecting piece matched with the transmission shaft and a clamping piece matched with the clamping structure, and the transmission shaft is moved to the set area through the connecting piece to achieve matched connection for transmission; the clamping piece is matched and connected with the clamping structure, so that quick disassembly and assembly are realized; different devices can be rapidly replaced in the operation process, the clamping mechanism is arranged, the axial transmission part can be tensioned and cannot be loosened, and the transmission precision is improved; the robot operating arm system has overall movement and rotation freedom degrees and is compact in structure, so that the size of a driving device is reduced; and the phenomena of loosening, over-tightening and the like in the movement process are prevented.

The invention discloses a fabricated building structure convenient for butt joint and grouting, and relates to the technical field of fabricated buildings. According to the technical scheme, the structure comprises an upper wall and a lower wall, and is characterized in that a groove is formed in the bottom of the upper wall, several evenly-distributed partition plates are fixedly connected in the groove, cavities are formed in the positions, between the adjacent partition plates, in the groove, a boss is arranged on the top of the lower wall and spliced in the groove, several evenly-distributed anti-skid grooves are formed in the boss, the partition plates are inserted into the anti-skid grooves, several reinforcing assemblies are arranged between the upper wall and the lower wall, one ends of the reinforcing assemblies are arranged in the lower wall, and the other ends of the reinforcing assemblies are arranged in the cavity. The structure has the advantages of simple assembly mode, easiness in butt joint and capability of improving the assembly efficiency.

The invention relates to a frictional wear life testing machine for a self-lubricating joint bearing. The testing machine comprises a testing machine bottom plate, a mounting bottom plate, a supporting base, a frictional wear system, a power transmission system, a loading system and a data acquisition and processing system. The power transmission system penetrates through the testing machine bottom plate, the mounting bottom plate and the supporting base from bottom to top. The frictional wear system is fixed to the top of the supporting base, the loading system is installed on the mounting bottom plate, and the frictional wear system is connected with the loading system through a traction rope. A signal line of the data acquisition and processing system is connected with the frictional wear system and the loading system. According to the invention, a test basis can be provided for accurate prediction of the life of a bearing, and a data basis is provided for establishment of a self-lubricating joint bearing life model.

Belonging to the technical field of railway track circuits, the invention discloses a high-speed rail steel rail insulating elastic spacer, and aims to solve the problems of insufficient toughness and short service life of insulating elastic spacers in the prior art. The high-speed rail steel rail insulating elastic spacer comprises a bottom layer and a surface layer, the surface layer is an arc-shaped structure with a thick middle and two thin sides, the middle thickness of the elastic spacer is 10mm-15mm, both ends of the high-speed rail steel rail insulating elastic spacer are provided with a convex layer, the height of the bulge is 2-5mm, the surface layer is provided with a striated structure, which can be arbitrary shape, the bottom layer surface is provided with a concave channel structure, the striated depth is 1mm-5mm, and the bottom layer thickness is 3mm-10mm. The high-speed rail steel rail insulating elastic spacer is made of a glass fiber reinforced polyurethane material.

The invention discloses a flexible machining clamp for an automobile hub. The clamp comprises a clamping jaw, a clamping jaw driving seat and a clamping jaw disc, the clamping jaw driving seat is movably arranged in the hollow position of the middle of the clamping jaw disc, and a plurality of driving grooves which are obliquely formed in the axial direction of the clamping jaw disc are evenly distributed in the outer wall of the clamping jaw driving seat. The clamping jaws are connected to the clamping jaw disc in a sliding mode in the radial direction of the clamping jaw disc, a sliding arm is arranged on each clamping jaw, each clamping jaw is connected with the corresponding driving groove in a sliding fit mode through the corresponding sliding arm, and arc clamping jaw grooves distributed in a multi-step mode are formed in each clamping jaw and used for being matched with hubs of various sizes. Each clamping jaw is provided with a plurality of arc clamping jaw grooves distributed in a step shape, hubs of different sizes can be clamped without disassembly, the machining efficiency is improved, and the use cost is reduced. The designed clamping jaw driving seat structure adopts a hexahedron structure, so that the indexing is more accurate.