99 results about "Mobile bearing" patented technology

The present invention relates to a pair of roller movable shaft seat units, including a bearing box, a brush roller connecting mechanism is arranged in the bearing box, the brush roller connecting mechanism includes a sliding seat and a movable bearing seat, and a shaft support device is inserted in the sliding seat and the movable bearing seat; the rear side of the bearing box is also sealed and connected to a driving box, the driving device is inserted through the rear side wall of the bearing box, and the front side of the bearing box is also provided with an exposed port, when the movable bearing seat is extended from the exposed port, it is in a sealed state with the exposed port to prevent water from entering the bearing box; when the brush roller is replaced, the movable bearing seat can be retracted into the bearing box to avoid collision. By arranging the brush roller connecting mechanism in the bearing box, and being able to move relatively in the bearing box to extend or retract, when extending, part of the brush roller connecting mechanism is pressed against the position of the exposed port, which can effectively prevent water from entering the interior; and it is only extended in the working state, which can also protect the brush roller connecting mechanism and prevent accidental collision during operation.

The utility model relates to the technical field of biological fermentation stirring and mixing, and discloses a fish paste acid biological fermentation stirring and mixing device which comprises a bottom plate and a fermentation tank, a stirring and mixing mechanism is arranged on the upper surface of the bottom plate, and the stirring and mixing mechanism comprises a U-shaped frame, a hydraulic cylinder, a movable bearing plate, a rectangular frame and a motor. And the bottom of the U-shaped frame is fixedly connected with the top of the bottom plate. According to the stirring and mixing device for biological fermentation of fish paste acid, through the use of a hydraulic cylinder and a movable bearing plate and the power action of the hydraulic cylinder, the movable bearing plate can be driven to slide in a U-shaped frame, and the position of a motor is synchronously driven to achieve the effect of synchronously changing; the raw material stirring device is simple in structure and convenient to use, the problem of how to mix and stir raw materials more efficiently is solved, the effect of scraping the inner wall while stirring the raw materials can be achieved, meanwhile, the use effect of the whole device is improved, and the device can be popularized and used in practice.

The invention discloses a multifunctional vehicle for cleaning high-voltage porcelain insulators, which belongs to the technical field of porcelain insulator cleaning and comprises a movable bearing unit, a multifunctional operation unit, a cleaning medium supply unit and a control unit. The cleaning medium supply unit and the control unit are both arranged on the movable bearing unit, and the multifunctional operation unit is detachably installed at the operation end of the movable bearing unit. The multifunctional operation unit is a self-adaptive opening and closing cleaning bin or a manned car hopper or a multi-shaft cleaning ring; the cleaning medium supply unit is communicated with a part with a cleaning function in the multifunctional operation unit and is used for supplying a cleaning medium; the control unit is electrically connected with the movable bearing unit, the multifunctional operation unit and the cleaning medium supply unit and used for receiving the detection signals and outputting control instructions. The safety risk of traditional high-altitude operation can be effectively avoided, the operation efficiency is greatly improved, and the diversified operation requirements of power equipment operation and maintenance are met.

The invention discloses a high-voltage porcelain insulator cleaning device and method with a multi-shaft cleaning ring, and belongs to the technical field of porcelain insulator cleaning. The high-voltage porcelain insulator cleaning device comprises a movable bearing unit, a cleaning medium supply unit, a multi-shaft cleaning unit and a control unit; the control unit and the cleaning medium supply unit are arranged on the movable bearing unit; the multi-axis cleaning unit is installed at the operation end of the movable bearing unit, and the multi-axis cleaning unit has multi-dimensional stretching and rotating adjustment degrees so as to adapt to cleaning of porcelain insulators at different positions and angles; the cleaning medium supply unit is communicated with the multi-shaft cleaning unit to supply a cleaning medium; the control unit is electrically connected with the cleaning medium supply unit and the multi-axis cleaning unit and used for receiving the detection signals and outputting control instructions. The problems that in an existing outdoor high-voltage porcelain insulator cleaning mode, the high-altitude operation safety risk is high, the operation efficiency is low, and cleaning of an asparagus area is not thorough can be effectively solved.

The invention discloses a high-voltage porcelain insulator cleaning device and method, and belongs to the technical field of porcelain insulator cleaning. The high-voltage porcelain insulator cleaning device comprises a movable bearing unit, a cleaning medium supply unit, a self-adaptive opening and closing cleaning unit and a control unit; the control unit and the cleaning medium supply unit are arranged on the movable bearing unit; the self-adaptive opening and closing cleaning unit is installed at the operation end of the movable bearing unit, the opening and closing size is automatically adjusted according to the diameter of the porcelain bottle, and a cleaning execution assembly is arranged on the inner side. The cleaning medium supply unit is communicated with the self-adaptive opening and closing cleaning unit and is used for supplying a cleaning medium; the control unit is electrically connected with the cleaning medium supply unit and the self-adaptive opening and closing cleaning unit and used for receiving the detection signal and outputting a control instruction. The problems that in an existing outdoor high-voltage porcelain insulator cleaning mode, the high-altitude operation safety risk is high, the operation efficiency is low, and time and labor are consumed can be effectively solved.

The invention discloses a mobile bearing device of a nondestructive testing X-ray machine, which comprises a vehicle body, a first sliding groove is fixedly connected above the vehicle body, a starting column is rotatably connected to one side of the first sliding groove, a bottom plate is rotatably connected to one end of the starting column, an inclined spring is arranged above the bottom plate, and a sliding groove plate is fixedly connected to the top end of the inclined spring. A sliding matching block is slidably connected to the upper portion of the sliding groove plate, a splitting plate is fixedly connected to the upper portion of the sliding matching block, a fixing rope is fixedly connected to one end of the splitting plate, a second pawl and a ratchet wheel are arranged on the grip, the grip is manually operated to enable the second pawl to push the ratchet wheel to rotate, and locking of the ratchet wheel is achieved through the first pawl. And the inclined spring arranged at the bottom of the sliding groove plate can provide a damping effect, shaking of the X-ray machine in the moving or working process is reduced, and the precision and safety of the X-ray machine are protected.

The present invention relates to a forming machine with a dual-channel forming roll composite adjustment device, belonging to the technical field of metallurgical equipment, and includes an upper roll and a lower roll respectively located on the upper and lower sides of the steel-walking line; the upper roll includes an upper transmission shaft supported at both ends on an upper support seat and two groups of upper forming sleeves sleeved on the upper transmission shaft; the lower roll includes a lower transmission shaft supported at both ends on a lower support seat and two groups of lower forming sleeves sleeved on the lower transmission shaft, and the two groups of lower forming sleeves and the two groups of upper forming sleeves form two sets of forming pass profiles; a moving nut sleeve with an external spiral groove in the circumferential direction and a gear with an internal spiral groove in the center form a lead screw-nut pair to drive the outer moving shaft sleeve to move to adjust the positions of the two outer forming sleeves, and a lead screw-nut transmission mechanism with double nuts and double helix directions is arranged on the outer moving bearing seat connected to the outer moving shaft sleeve to drive the inner moving bearing seat to move to adjust the positions of the inner forming sleeves, reducing the length of the transmission shaft, lowering the manufacturing difficulty and cost, and having a simple structure.

The invention discloses an intelligent mechanical cutter suction system based on culvert dredging, and relates to the field of intelligent control, the intelligent mechanical cutter suction system comprises a mobile bearing module, the left side of the top end of the mobile bearing module is provided with a mechanical arm execution component, and the center of the top end of the mobile bearing module is provided with a main control unit, the power module is used for providing moving capacity and overall power support for all functional parts and modules through a walking mechanism and an energy system; the mechanical arm execution component is used for executing cutter suction dredging operation through a mechanical arm driven by the hydraulic driving system and a hydraulic cutter suction head at the tail end of the mechanical arm; when facing complex and changeable culvert deposits, the device always keeps the most efficient cutting and suction state, the overall dredging time is greatly shortened, the operation accuracy and consistency are improved, the mechanical structure overload and collision risks caused by rough operation or path deviation are reduced, and the service life of a core working device is prolonged.

The application discloses a kind of with pressure operating device and its control method, for with pressure well repair pipe column operation, including mobile slip group, mobile crossbeam, lifting oil cylinder, fixed slip group and lower working platform;Mobile slip group includes mobile anti-top cone slip, mobile bearing cone slip, mobile universal slip by first connecting piece connection;Fixed slip group includes fixed anti-top cone slip, fixed bearing cone slip, fixed universal slip by second connecting piece connection;Mobile universal slip and fixed universal slip are used for in the state of pipe column suspended weight as neutral point state alternately operation;Mobile bearing cone slip and fixed bearing cone slip are used for in the state of pipe column suspended weight as heavy pipe column alternately operation;Mobile anti-top cone slip and fixed anti-top cone slip are used for in the state of pipe column suspended weight as light pipe column alternately operation.The application can improve the safety of pipe column operation, simplify operation, improve operation efficiency, reduce labor intensity.

The invention relates to the field of power transmission line construction devices of an electric power system, in particular to a vibration-reduction anti-slip movable bearing device used for aerial operation of a power transmission line, and discloses a vibration-reduction anti-slip movable bearing device used for aerial operation of the power transmission line. The invention provides the vibration-damping and anti-sliding mobile bearing device for overhead operation of the power transmission line, which is simple in structure and convenient to use. The device comprises a bearing platform and is characterized in that a suspension moving mechanism used for being suspended on two parallel power transmission lines is arranged above the bearing platform, a damping mechanism is arranged in the bearing platform, an adsorption mechanism is arranged on the surface of the bearing platform, and the bearing platform and the suspension moving mechanism are in an insulated state.

The utility model discloses a baby cradle which comprises a baby crib frame body, the inner sides of large iron pipes are connected with extending iron pipes in a sliding mode, two storage frames are symmetrically arranged between bases, a reinforcing fixing rod is arranged between the large iron pipes, and one side of each extending iron pipe is provided with a first rocker arm pipe and a second rocker arm pipe. Through the structure, the second threaded hole and the first threaded hole are formed in the side wall of the extending iron pipe and the side wall of the large iron pipe correspondingly, the first threaded hole and the second threaded hole are locked through the tightening bolt, the base is fixedly connected to the lower end of the large iron pipe, and the two universal wheels are symmetrically arranged at the lower end of the base; a core rod is fixedly connected to the inner side of the bearing, a swing switch sliding block is arranged between first connecting blocks, rocker arm pipes are fixedly connected to the lower ends of the first connecting blocks, second connecting blocks are fixedly connected to the lower ends of the rocker arm pipes, and one sides of the first connecting blocks are fixedly connected to extending iron pipes; and the baby crib frame body is convenient to stably translate and shake.

The present application relates to the technical field of rescue vehicles, in particular to a visual recognition intelligent mobile vehicle and a use method, comprising: a mobile bearing assembly, comprising a vehicle chassis frame provided with four Macadam wheels, and a top chassis frame installed above the vehicle chassis frame, used to provide a mobile and bearing basis; a temporary storage assembly installed on the top chassis frame, used to bear and collect clamped objects; a clamping jaw part, comprising a mechanical arm rotatably installed on the top chassis frame, and a clamping jaw unit installed at the front end of the mechanical arm and used to clamp target objects; and a visual assembly installed at the front end of the top chassis frame, used to collect images for visual recognition; the device can integrate visual recognition, mechanical arm grabbing and temporary storage functions, realize automatic target recognition, accurate grabbing and safe transfer, and overcome the defects of single function, low operation efficiency and dependence on manual control of existing equipment.

The invention belongs to the field of engine assembly, and particularly relates to a loading control system for a rotating part in a semi-closed cavity, which comprises a bearing system and a spring system, the spring system is connected into the bearing system, and the spring system can be pushed and pulled by moving the bearing system; the spring system comprises a blind hole shaft, a large spring and a small spring; the small spring is coaxially connected into a blind hole of the blind hole shaft, and the large spring is coaxially connected to the outer wall of the blind hole shaft. One ends of the large spring and the small spring are free ends, and the other ends are fixed ends; the free ends and the fixed ends of the large spring and the small spring are positioned in the same direction; the device is small, light, easy to operate, simple in structure and low in machining cost. The device can adapt to the axial force loading operation of a rotating part in a semi-closed cavity with a small internal space, a narrow outlet and a low visual degree, and can also be used in an open space to replace similar equipment with similar functions but complex structures.

The utility model discloses an electric arc swing platform, include: drive assembly, fixed component, sliding assembly, the drive assembly includes: motor, with the output shaft connection of motor's ball screw, with ball screw cooperation's screw rod nut, with the push frame of screw rod nut connection, the fixed component includes: the base that is provided with mobile groove, arc groove, install first support bearing, second support bearing on the base, the both ends of ball screw are installed on the inner ring of first support bearing, second support bearing respectively, the utility model discloses a movable bearing is used to push the angle inclination, and simple structure, and transmission is efficient, need not adopt the structure of worm and worm precision cooperation to can reduce the machining accuracy of spare part, reduce product manufacturing cost.

The invention relates to the technical field of anti-falling equipment, in particular to fixed wall type anti-falling equipment for assisting old people in defecation, which comprises an arched door type support frame, upper top bearing battens are symmetrically and fixedly arranged on two sides of the upper end of the arched door type support frame, and an electric telescopic rod is fixedly mounted at one end, close to the arched door type support frame, of each upper top bearing batten. Moving limiting grooves are symmetrically formed in the two sides of the arched door type supporting frame, when the old man gets up, the two protective moving bearing plates are closed together, in this way, the old man can be protected in the protective moving bearing plates, the phenomenon that the old man tumbles forwards is avoided, an electric telescopic rod retracts when the old man gets up, and therefore the old man can get up conveniently. The movable arm supporting batten can be driven to move upwards, a certain supporting and pushing effect is achieved on the standing-up of the old, and it is guaranteed that the old cannot fall down under the action of the protective movable bearing plate while the old can stand up more easily.

Extraction attachment for a tool (300), in particular a drilling tool (302), comprising a housing (13) with an end-face opening (16) designed to receive the tool (300), a bearing unit (28) for mounting the extraction attachment (10) on the tool (300), an extraction opening (20) for coupling the extraction attachment (10) to an extraction device (11), wherein the end-face opening (16) and the extraction opening (20) form a transport channel (26), wherein the extraction attachment (10) is mounted axially movable and rotatable on the tool (300) by means of the bearing unit (28) such that the position of the extraction attachment (10) relative to the tool (300) changes with increasing bore depth, characterized in that the extraction attachment (10) has an actuating element (36) by means of which the position of the movable bearing element can be controlled. (32) is adjustable.

The direct drive device (10) has a bearing (14) fitted to the outer periphery of a ball screw (12), a nut holder (30) through which the ball screw (12) is inserted, and a bearing pressing member (22) fixed to a motor housing (16) in a state where the ball screw (12) is inserted into a through hole (36), which restricts the axial movement of the bearing (14) in the motor housing (16), the bearing pressing member (22) having a cutout portion (40) extending radially from the inner peripheral surface of the through hole (36) to the outer peripheral surface of the bearing pressing member (22).

The present invention relates to a vehicle seat comprising a seat part and a vehicle seat substructure with a frame part for supporting the seat part or for attachment to a body and a height-adjustable scissor frame, wherein the scissor frame has at least one first scissor arm and the frame part has at least one first rail element, wherein at least one end of the first scissor arm is connected to the first rail element by means of a movable bearing, wherein the movable bearing has a rolling element with an axle and a sliding element, and the rolling element and the sliding element are arranged one behind the other in the rolling axis direction, the rolling element rotates about a rolling axis of the axle, wherein the rolling element has at least one contact point with a rolling plane of the first rail element and the sliding element has at least one contact point with a sliding plane of the first rail element or a second rail element of the frame part,where the rolling plane and the sliding plane are aligned at an angle α from a range 0 < α < 90° to each other.,

A mobile bearing prosthetic implant may include a fossa implant seated in the fossa cavity of the skull and secured to the zygomatic arch. The fossa implant may define a primary recess constructed and arranged to mimic the articular eminence of the temporal bone such that a floating bearing connected to a ramus implant may translate along the original path that the condylar head would take during movement of the jaw. The floating bearing may be constructed and arranged to move from the first jaw angle recess to the second jaw angle recess and is positionable therebetween such that a longitudinal axis of the floating bearing is perpendicular to the direction of movement of the floating bearing within the fossa implant.

The invention relates to a building continuous translation device and method.The device comprises a paving steel plate, a movable bearing mechanism, a frame beam, a pushing mechanism and a continuous traction mechanism, the paving steel plate is flatly laid on a horizontal foundation, the bottom of the frame beam is arranged on the paving steel plate through the movable bearing mechanism, and a building is fixedly arranged at the top of the frame beam; a pushing mechanism is arranged at the tail of the frame beam, and a continuous traction mechanism is arranged at the head; the pushing mechanism pushes the frame beam to start the building on the frame beam; after being started, the continuous traction mechanism drags the frame beam, and continuous displacement of the building is achieved. The gravity of the building is dispersedly transmitted to the ground by utilizing the paving steel plate, the building is started by utilizing the rear pushing mechanism, and the building is dragged from the front by utilizing the continuous traction mechanism, so that the aim of uninterrupted continuous translation of the building is fulfilled. The continuous traction mechanism realizes continuous translation of the building so as to ensure that kinetic friction force is always generated in the translation process, and the maximum static friction force is generated only when the building is started.

The invention relates to an intermediate supporting seat assembly, a transmission shaft assembly and a transmission system. The intermediate supporting seat assembly comprises a supporting seat shell, a transmission shaft and a transmission shaft, the supporting shaft penetrates through the supporting seat shell and is rotatably connected with the supporting seat shell through a bearing, the supporting shaft can move relative to the supporting seat shell in the axial direction, and the bearing moves along with the supporting shaft in the axial direction; the damping mechanism is arranged between the supporting shaft and the supporting seat shell and used for providing damping force when the supporting shaft moves relative to the supporting seat shell in the axial direction. According to the middle supporting seat, the supporting shaft can move relative to the supporting seat shell in the axial direction, when the supporting shaft is subjected to axial force, the supporting shaft moves relative to the supporting seat shell in the axial direction, the bearing moves along with the supporting shaft, impact force is prevented from directly acting on the bearing, the influence of axial impact force on the bearing is reduced, and the failure rate of the middle supporting seat is reduced; in the moving process of the supporting shaft, the damping mechanism generates damping force to dissipate impact energy, and the damping mechanism can play a role in vibration reduction so as to reduce vibration in the running process of the supporting seat assembly.

The application discloses a self-adaptive assembled construction platform and an assembling method, and relates to the field of construction platforms. The self-adaptive assembled construction platform comprises a support, a construction table fixedly installed on the support, and a protection plate fixedly installed on the two sides of the construction table. A mobile bearing module is arranged on the protection plate. The mobile bearing module comprises a bearing frame, an assembling component, two groups of mobile components, two groups of stopping components, two groups of unlocking components and a protection component. The assembling component can install the mobile components on the protection plate. The bearing frame can be self-adaptively moved along with a construction worker. The construction worker can conveniently store and take tools and materials. When the construction worker stops, the stopping component can lock the mobile components on the protection plate, so that the mobile bearing module cannot continue to move under inertia, and the stability of the mobile bearing module is ensured. When the tools and materials are stored and taken, the mobile components cannot move the bearing frame, and the tools and materials cannot shake during storage and taking, so that the storage and taking are not inconvenient.

The bending machine for motorcycle production relates to the technical field of motorcycle production and comprises a bending device body, the bending device body comprises a machining table, a support is fixedly installed on the left side of the front portion of the top of the machining table, and a moving groove is formed in the middle of the left side of the top of the machining table. A bending unit is arranged at the top of the machining table, a material taking unit is arranged at the position, located on one side of the bending unit, of the top of the machining table, the bending unit comprises a motor fixedly installed at the bottom end of the machining table, and the output end of the motor is fixedly connected with a driving rod. The fixed bearing block and the movable bearing block are arranged for bearing and limiting a raw material steel pipe, so that the raw material steel pipe has stability during bending, the grip is rotated to drive the threaded rod to rotate along with the grip, the movable bearing block can be promoted to move front and back, the bearing position can be conveniently adjusted according to the length of the raw material steel pipe, and then the effect of precise machining is achieved.

The invention provides a dual-bearing reel capable of smoothly moving a pinion gear. A dual-bearing reel (100) is provided with a reel body (2), a spool (3), a spool shaft (4), a handle (5), a pinion gear (15), a clutch control mechanism (22), and bearings (16a, 16b). The pinion gear (15) moves between a transmission position at which the rotational force of the handle (5) is transmitted to the spool shaft (4) and a blocking position at which the transmission of the rotational force of the handle (5) to the spool shaft (4) is blocked. The bearings (16a, 16b) support the pinion gear (15) so that the pinion gear (15) can rotate with respect to the reel body (2). When the pinion gear (15) moves between the transmission position and the blocking position, the bearings (16a, 16b) move together with the pinion gear (15).

The utility model discloses a static friction angle measuring device based on simulated rock structural surface slippage, which comprises a shell, a moving mechanism is arranged in the shell, the moving mechanism is in driving connection with a moving bearing platform, a coating box body is arranged above the moving bearing platform, a mounting groove is formed in the lower part of the coating box body, and a plurality of fixing screws are in threaded connection with the periphery of the coating box body. The inner end of the fixing screw is located in the mounting groove, a testing box is arranged on the shell and comprises a measuring rod, and the end of the measuring rod faces the wrapping box body.

Linear drive for providing linear motion, comprising a profile arm (2) extending along an axis of motion (8) and a guide arrangement (3) arranged linearly movable along the axis of motion (8) on the profile arm (2), the guide arrangement comprising a gear mounted for rotation, and a toothed belt (5) extending along the axis of motion (8), which partially wraps around the gear and is fixed at each end to the profile arm (2), wherein the profile arm (2) has a guide recess (82) extending along the axis of motion (8), in which at least one guide surface (107, 108, 109, 110) is formed for a linearly movable bearing of the guide arrangement (3), wherein the guide arrangement (3) comprises at least one guide element (85, 86) that engages in the guide recess (82) and rests on the guide surface (107, 108, 109, 110). lieswherein at least one connection opening (96) is formed on an outer surface (95) of the guide arrangement (3) and wherein at least one outlet opening (97) is formed on an inner surface (103) of the guide arrangement (3) facing the guide recess (82), wherein the guide arrangement (3) is penetrated by at least one fluid channel (98) between the at least one connection opening (96) and the at least one outlet opening (97), characterized in that a cover strip (83) is associated with the profile extension (2), which extends with a longest edge parallel to the axis of movement (8) and which covers the guide recess (82).

The utility model belongs to the technical field of double-geared roller crushers, and particularly relates to a double-geared roller crusher capable of hydraulically adjusting a center distance. Comprising a first-stage rack, a second-stage rack and a hydraulic driving assembly, two fixed bearing seats are arranged on the first-stage rack, and fixed crushing rollers are installed on the two fixed bearing seats; the second-stage rack is arranged on the first-stage rack in a sliding mode, two movable bearing seats are fixed to the second-stage rack, the two movable bearing seats and the two fixed bearing seats are arranged in a one-to-one correspondence mode, and movable crushing rollers are installed on the two movable bearing seats; the hydraulic driving assembly is installed on the first-stage rack, and the driving end of the hydraulic driving assembly is connected to the second-stage rack and used for driving the second-stage rack to slide in the second direction so that the movable crushing roller can be close to or away from the fixed crushing roller. The movable crushing rollers integrally move along with the second-stage rack, the second-stage rack is driven by the hydraulic driving assembly to slide to achieve dynamic adjustment of the center distance of the crushing rollers, and the device has the advantages of being stable in structure, convenient to adjust and high in synchronization precision.

The utility model discloses a dynamic load test device used for a roller bearing, comprising a bearing pedestal which is in transmission connection with a driving part and is driven by the driving part to apply pressure to a friction plate, the friction plate reciprocates along the horizontal direction, the bearing pedestal is provided with an avoiding groove whose size is larger than that of a bearing to be tested, and the bearing pedestal is provided with a bearing to be tested; a first shaft hole and a second shaft hole which are communicated with the avoiding groove are formed in the two sides of the avoiding groove; the first shaft sleeve is arranged in the first shaft hole, the axial length of the first shaft sleeve is consistent with that of the first shaft hole, and the first shaft sleeve abuts against one end of an inner ring of the to-be-detected bearing; the second shaft sleeve is arranged in the second shaft hole, the axial length of the second shaft sleeve is smaller than or equal to that of the second shaft hole, and the second shaft sleeve abuts against the other end of the inner ring of the to-be-measured bearing; and the test shaft is used for supporting a bearing to be tested, and two ends of the test shaft penetrate through the first shaft sleeve and the second shaft sleeve and are locked by the first locking piece and the second locking piece respectively. The dynamic load test device for the roller bearing provided by the utility model can be suitable for bearings with different sizes, and the test cost is reduced.

The application discloses a kind of test device for sensor, including test unit, including mobile bearing assembly, with mobile bearing assembly vertical insertion self-weight locking assembly, with mobile bearing assembly lateral insertion and symmetrically arranged two groups of adjusting base assembly, mobile debugging component is arranged in mobile bearing assembly and is limited with self-weight locking assembly bottom insertion, and first sensor and second sensor are respectively arranged in adjusting base assembly and are arranged in adjusting base assembly; Self-weight locking assembly is limited and can only move up and down along vertical direction;Adjusting base assembly is limited and can only move left and right along horizontal direction.The beneficial effects of the present application are that multiple sensors are simultaneously clamped by using the self-weight of the clamping member to ensure stability;After clamping and stabilizing, the longitudinal limit sensing distance and the transverse interval distance change test of the two sensors can be performed by rotating the outer adjusting rod, without frequent handling, improving the test efficiency and service life.