Reduction gearbox test bench of vehicle-mounted table board

Abstract

The utility model provides a reduction gearbox test bench of a vehicle-mounted table board, and belongs to the technical field of automobile parts. Comprising a rack and a simulation table board assembly, and the rack is provided with at least two vertical supporting arms which are arranged in parallel at intervals and an adjustable mounting plate which is arranged between the two adjacent vertical supporting arms and can perform angle adjustment relative to the vertical supporting arms. The simulation table plate assembly comprises a table plate simulation piece, a reduction gearbox, a motor driving plate and a connecting rod mechanism, the reduction gearbox and the motor driving plate are installed on the table plate simulation piece, the motor driving plate is electrically connected with a motor arranged in the reduction gearbox, and the two ends of the connecting rod mechanism are rotationally connected with the adjustable installation plate and the table plate simulation piece respectively; an output shaft of the reduction gearbox is in transmission connection with the connecting rod mechanism. The reduction gearbox test bench is compact in structure and convenient to adjust and operate, and performance verification of the vehicle-mounted table board reduction gearbox and the whole mechanism can be completed more flexibly and economically.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile accessories, in particular to a speed reducer test bench of vehicle table board and vehicle table board. BACKGROUND

[0002] In recent years, with the continuous improvement of vehicle intelligence and comfort demand, motor-driven vehicle table board is gradually applied to high-end business vehicles, motor homes and other vehicle models. This kind of table board is usually integrated in the seat back or armrest area, which can realize angle adjustment and folding through motor drive, providing a convenient support platform for passengers to provide temporary office, dining or entertainment. Its driving core often contains transmission mechanisms such as speed reducer to ensure smooth movement of the table board, accurate positioning, and sufficient carrying capacity.

[0003] In order to ensure the reliability and durability of the vehicle table board in actual use, its mechanical properties need to be strictly tested during production. In the prior art, a special test bench is usually designed to simulate the rotation stroke and various use attitudes of the table board in the vehicle environment. This kind of test bench generally includes a driving device, a loading mechanism and a sensor system, which realizes automatic detection of the table board movement range, speed, torque and repeated folding life through program control.

[0004] However, in order to realize full-angle attitude simulation, the existing test bench often needs to be equipped with a large frame structure to accommodate the maximum unfolding stroke and multi-directional rotation space of the table board, resulting in large overall size and large occupied area. At the same time, the complex mechanical structure and multi-degree-of-freedom adjustment mechanism also significantly increase the manufacturing cost of the test bench, increase the difficulty of debugging and maintenance. In addition, the existing test bench usually has limited adaptability for vehicle table boards of different specifications or installation methods, which further affects the test efficiency and the universality of the equipment. UTILITY MODEL CONTENTS

[0005] The utility model embodiment provides a kind of speed reducer test bench of vehicle table board, compact structure and it is easy to adjust operation, it can be more flexible, economically complete the performance verification of vehicle table board speed reducer and overall mechanism. The technical scheme is as follows:

[0006] The utility model embodiment provides a kind of speed reducer test bench of vehicle table board, comprising:

[0007] The test bench is provided with at least two parallel and spaced vertical support arms and an adjustable mounting plate arranged between adjacent two vertical support arms, the two side edges of the adjustable mounting plate are respectively hinged to adjacent two vertical support arms, and the vertical support arm is provided with a fixing mechanism for fixing the adjustable mounting plate;

[0008] The simulation table board assembly comprises a table board simulation piece, a reduction gearbox, a motor driving board and a connecting rod mechanism, the reduction gearbox and the motor driving board are installed on the table board simulation piece, the motor driving board is electrically connected with a motor arranged in the reduction gearbox, two ends of the connecting rod mechanism are rotatably connected with the adjustable mounting plate and the table board simulation piece respectively, an output shaft of the reduction gearbox is in transmission connection with the connecting rod mechanism, and the connecting rod mechanism is configured to rotate relative to the adjustable mounting plate and the table board simulation piece to adjust the rotation angle of the table board simulation piece relative to the adjustable mounting plate.

[0009] Optionally, the adjustable mounting plate comprises a connecting plate and an adjusting plate vertically connected to two sides of the connecting plate, the connecting rod mechanism is rotatably connected with the connecting plate, the adjusting plate is in abutment with the adjacent vertical support arm, the adjusting plate is provided with a hinged hole and an arc-shaped slot hole arranged with the hinged hole as the center, the adjusting plate is hinged with the vertical support arm through a hinged screw rod penetrating the vertical support arm and the hinged hole and is fixed by a nut, and the adjusting plate is connected with the vertical support arm through a fixing screw rod penetrating the vertical support arm and the arc-shaped slot hole and is fixed by a nut.

[0010] Optionally, the vertical support arm is provided with a strip-shaped through groove extending along the length direction, and the hinged screw rod and the fixing screw rod both penetrate the strip-shaped through groove.

[0011] Optionally, the connecting plate is detachably connected with a connecting boss, and the connecting rod mechanism is rotatably connected with the connecting boss.

[0012] Optionally, the connecting boss is a strip-shaped cube arranged along the side edge of the connecting plate, the connecting rod mechanism comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is rotatably connected with the side bottom of the connecting boss, the other end is rotatably connected with the side bottom of the table board simulation piece and is coaxially connected with the output shaft of the reduction gearbox, one end of the second connecting rod is rotatably connected with the side top of the connecting boss, and the other end is rotatably connected with the side edge of the table board simulation piece and is arranged in space from the other end of the first connecting rod.

[0013] Optionally, the rack is provided with four vertical support arms arranged in a rectangular array.

[0014] Optionally, the rack comprises an upper rack and a lower rack, the vertical support arms are located on the upper rack, and the upper rack is detachably installed above the lower rack.

[0015] Optionally, the lower rack is provided with a mounting hole plate on the top, a plurality of first bolt holes are arranged in an array on the mounting hole plate, and the upper rack is provided with second bolt holes matched with the first bolt holes on the top.

[0016] Optionally, the lower gantry bottom is arranged with a plurality of pulleys in a rectangular array.

[0017] Optionally, the lower gantry bottom is arranged with a plurality of liftable foot cups in a rectangular array.

[0018] The technical scheme provided by the embodiment of the utility model has at least the following beneficial effects:

[0019] Compact structure, small floor area. By directly installing the simulation table plate assembly on the gantry, without additional large frame structure, the overall size is greatly reduced.

[0020] Low manufacturing cost. The gantry can be manufactured by simple welding or bolt connection using standard profiles, without complex machining. The angle adjustment mechanism of the adjustable mounting plate can be realized only by the cooperation of the hinge hole, the circular arc slot, the hinge screw and the fixing screw, which is simple in structure and easy to process.

[0021] Convenient transportation and disassembly. The split design of the upper gantry and the lower gantry makes the test bench can be conveniently disassembled into two parts for packaging and transportation, greatly reducing the packaging volume. At the transportation destination, it can be quickly assembled by bolt connection, without the need for professional technicians and special tools, reducing the installation difficulty and cost.

[0022] Flexible angle adjustment, test conditions close to reality. The adjustable mounting plate can freely adjust the inclination angle within a certain range through the cooperation of the hinge hole and the circular arc slot, accurately simulating the installation angle of the vehicle seat backrest in different inclination states. This flexible angle adjustment capability enables the test bench to comprehensively evaluate the performance of the vehicle table in various actual use postures, ensuring that the product can work normally under various working conditions. Compared with the test bench with fixed angle, the test bench of the utility model can find more potential design defects and performance problems, improving the product quality. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0024] Figure 1 It is the structure schematic view of the reduction gearbox test bench for vehicle table provided by the embodiment of the utility model;

[0025] Figure 2 It is the structure schematic view of the upper gantry provided by the embodiment of the utility model;

[0026] Figure 3 is a connection structure schematic view of the adjustable mounting plate and the simulation table plate assembly provided by the embodiment of the present application;

[0027] Figure 4 is Figure 1 a partial structure enlarged schematic view.

[0028] In the figure: 1 - rack; 11 - vertical support arm; 111 - strip-shaped through slot; 12 - adjustable mounting plate; 121 - connecting plate; 122 - adjusting plate; 1221 - hinged hole; 1222 - circular arc-shaped slot hole; 123 - connecting boss; 13 - hinged screw; 14 - fixed screw; 15 - mounting hole plate; 151 - first bolt hole; 16 - second bolt hole; 1a - upper rack; 1b - lower rack;

[0029] 2 - simulation table plate assembly; 21 - table plate simulation piece; 22 - speed reducer box; 221 - output shaft; 23 - motor driving plate; 24 - connecting rod mechanism; 241 - first connecting rod; 242 - second connecting rod;

[0030] 3 - pulley; 4 - liftable foot cup. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the present application more clear, the following will make further detailed description to the embodiment of the present application in combination with the drawings.

[0032] Figure 1 is a structure schematic view of the speed reducer box test rack of the vehicle-mounted table plate provided by the embodiment of the present application; Figure 2 is a structure schematic view of the upper rack provided by the embodiment of the present application; Figure 3 is a connection structure schematic view of the adjustable mounting plate and the simulation table plate assembly provided by the embodiment of the present application; Figure 4 is Figure 1 a partial structure enlarged schematic view. As Figures 1 to 4 shown, the embodiment of the present application provides a speed reducer box test rack of a vehicle-mounted table plate, which comprises a rack 1 and a simulation table plate assembly 2.

[0033] The rack 1 is used for providing a stable support basis for the whole test rack and providing an installation reference for the simulation table plate assembly 2. The rack 1 is provided with at least two vertical support arms 11 arranged in parallel and at intervals. In the embodiment, preferably, the rack 1 is provided with four vertical support arms 11, which are arranged in a rectangular array, so as to provide more stable support for the simulation table plate assembly 2. The rectangular array arrangement of the four vertical support arms 11 makes the rack 1 have good structural stability, which can bear various loads and torques generated by the simulation table plate assembly 2 in the test process, and ensures the accuracy and reliability of the test process.

[0034] An adjustable mounting plate 12 is arranged between two adjacent vertical support arms 11. The adjustable mounting plate 12 is one of the core technical features of the utility model, which can realize angle adjustment relative to the vertical support arm 11, thereby simulating different inclination angles of the seat backrest in the actual vehicle. The adjustable mounting plate 12 comprises a connecting plate 121 and an adjusting plate 122 vertically connected to both sides of the connecting plate 121. The connecting plate 121 is mainly used for rotatable connection with the connecting rod mechanism 24, thereby providing a stable connection reference for the connecting rod mechanism 24. The adjusting plate 122 abuts against the adjacent vertical support arm 11, thereby realizing the hinging and angle adjustment functions between the adjustable mounting plate 12 and the rack 1.

[0035] Specifically, the adjusting plate 122 is provided with a hinge hole 1221 and an arc-shaped slot hole 1222 arranged with the hinge hole 1221 as the center. The cooperation of the hinge hole 1221 and the arc-shaped slot hole 1222 is the key structure for realizing angle adjustment. The adjusting plate 122 is hinged with the vertical support arm 11 through a hinge screw 13 penetrating the vertical support arm 11 and the hinge hole 1221 and is fixed by a nut, the hinge screw 13 serving as the hinge center, so that the adjustable mounting plate 12 can rotate relative to the vertical support arm 11. Meanwhile, the adjusting plate 122 is connected with the vertical support arm 11 through a fixing screw 14 penetrating the vertical support arm 11 and the arc-shaped slot hole 1222 and is fixed by a nut.

[0036] Since the arc-shaped slot hole 1222 is distributed in an arc shape with the hinge hole 1221 as the center, when the inclination angle of the adjustable mounting plate 12 needs to be adjusted, the nut on the fixing screw 14 is first loosened, at which time the adjustable mounting plate 12 can freely rotate around the hinge screw 13, and the fixing screw 14 can slide in the arc-shaped slot hole 1222. When the adjustable mounting plate 12 is rotated to the desired angle, the nut on the fixing screw 14 is tightened, thereby fixing the adjustable mounting plate 12 at the angle position. This design makes the angle adjustment operation simple and quick, without the need for complex adjustment mechanisms, thereby reducing the manufacturing cost and operation difficulty. The design of the arc-shaped slot hole 1222 also limits the rotation range of the adjustable mounting plate 12, thereby preventing excessive rotation from causing structural interference or damage.

[0037] Further, in order to improve the flexibility and adaptability of the angle adjustment, a strip-shaped through slot 111 extending along the length direction is arranged on the vertical support arm 11. The hinge screw rod 13 and the fixed screw rod 14 are both arranged in the strip-shaped through slot 111. The arrangement of the strip-shaped through slot 111 enables the hinge screw rod 13 and the fixed screw rod 14 to be adjusted in position along the length direction of the vertical support arm 11, so as to adapt to the installation requirements of different heights. For example, when different specifications of table plate simulation pieces 21 need to be tested, the height of the adjustable mounting plate 12 relative to the bottom of the test bench 1 can be changed by adjusting the positions of the hinge screw rod 13 and the fixed screw rod 14 in the strip-shaped through slot 111, so as to adapt to different testing requirements. This design greatly improves the versatility and adaptability of the test bench, so that it can meet the testing requirements of various specifications of vehicle-mounted table plates.

[0038] The connecting boss 123 is detachably connected to the connecting plate 121, and the connecting rod mechanism 24 is rotatably connected to the connecting boss 123. The detachable design of the connecting boss 123 enables different specifications or shapes of the connecting boss 123 to be replaced under different testing requirements, so as to adapt to different connecting rod mechanisms 24. In this embodiment, the connecting boss 123 is a strip-shaped cube arranged along the side edge of the connecting plate 121. This shape design can provide sufficient mounting space and stable connection basis for the connecting rod mechanism 24. The connecting boss 123 and the connecting plate 121 are detachably connected by bolts, which facilitates disassembly, storage, storage, and transportation.

[0039] The simulation table plate assembly 2 includes a table plate simulation piece 21, a reduction gearbox 22, a motor drive board 23, and a connecting rod mechanism 24. The table plate simulation piece 21 is used to simulate the structure and load-bearing characteristics of an actual vehicle-mounted table plate, and bears various loads and torques during testing to verify the performance of the reduction gearbox 22 and the overall mechanism. The reduction gearbox 22 and the motor drive board 23 are both mounted on the table plate simulation piece 21, forming an integrated test unit. The motor drive board 23 is electrically connected to the motor arranged in the reduction gearbox 22, providing power and control signals for the motor and achieving precise control of the motor.

[0040] The connecting rod mechanism 24 is a key transmission component for realizing the movement of the table board simulation piece 21. The two ends of the connecting rod mechanism 24 are rotatably connected with the adjustable mounting plate 12 and the table board simulation piece 21 respectively, and the output shaft 221 of the speed reducer 22 is in transmission connection with the connecting rod mechanism 24. Specifically, the connecting rod mechanism 24 comprises a first connecting rod 241 and a second connecting rod 242. One end of the first connecting rod 241 is rotatably connected with the side bottom of the connecting boss 123, the other end is rotatably connected with the side bottom of the table board simulation piece 21 and coaxially connected with the output shaft 221 of the speed reducer 22. One end of the second connecting rod 242 is rotatably connected with the side top of the connecting boss 123, the other end is rotatably connected with the side of the table board simulation piece 21 and is arranged in space from the other end of the first connecting rod 241. In the embodiment of the utility model, the output shaft 221 of the speed reducer 22 is extended from both sides, and the corresponding connecting rod mechanism 24 is provided with two groups of connecting rods which are connected to the two sides of the table board simulation piece 21, wherein the two ends of the output shaft 221 are connected with a first connecting rod 241.

[0041] The cooperation of the first connecting rod 241 and the second connecting rod 242 forms a stable four-connecting-rod mechanism. In the working process, when the motor in the speed reducer 22 starts to operate after receiving the control signal through the motor driving plate 23, the power of the motor is output by the output shaft 221 after being decelerated and torque-increased by the transmission mechanism inside the speed reducer 22. Since one end of the first connecting rod 241 is coaxially connected with the output shaft 221, the rotation of the output shaft 221 directly drives the first connecting rod 241 to rotate around the connecting point of the first connecting rod 241 and the table board simulation piece 21. In the process of rotating the first connecting rod 241, since the other end of the first connecting rod 241 is rotatably connected with the connecting boss 123 which is fixed on the adjustable mounting plate 12, the rotation of the first connecting rod 241 drives the table board simulation piece 21 to rotate relative to the adjustable mounting plate 12.

[0042] The second connecting rod 242 provides stable constraint and support for the movement of the table board simulation piece 21. One end of the second connecting rod 242 is rotatably connected with the side top of the connecting boss 123, the other end is rotatably connected with the table board simulation piece 21 and is arranged in space from the connecting point of the first connecting rod 241. This spaced arrangement makes the first connecting rod 241 and the second connecting rod 242 form a stable triangular support structure, ensuring the stability of the table board simulation piece 21 in the movement process and preventing the table board simulation piece 21 from swinging or shaking. At the same time, the second connecting rod 242 also limits the movement trajectory of the table board simulation piece 21, so that the table board simulation piece 21 moves along the predetermined trajectory to expand and retract, accurately simulating the movement state of the actual vehicle-mounted table board.

[0043] Through the transmission of the connecting rod mechanism 24, the table board simulation piece 21 can rotate relative to the adjustable mounting plate 12 to realize the unfolding and retracting actions of the table board. During the unfolding process, the motor rotates forward, and the output shaft 221 drives the first connecting rod 241 to rotate clockwise (or counterclockwise, depending on the specific installation direction) to push the table board simulation piece 21 to move to the unfolded position. During the retracting process, the motor rotates reversely, and the output shaft 221 drives the first connecting rod 241 to rotate reversely to pull the table board simulation piece 21 to move to the retracted position. The entire movement process is stable and controllable, and can truly reflect the movement characteristics of the vehicle-mounted table board in actual use.

[0044] In order to improve the overall stability of the test bench and facilitate transportation, the test bench 1 comprises an upper bench 1a and a lower bench 1b. The vertical support arm 11 is located on the upper bench 1a, and the upper bench 1a is detachably mounted above the lower bench 1b. This split design allows the test bench to separate the upper bench 1a and the lower bench 1b during long-distance transportation, greatly reducing the packaging volume and transportation cost. In the use site, the upper bench 1a can be quickly and conveniently installed on the lower bench 1b to assemble into a complete test bench.

[0045] Specifically, the lower bench 1b is provided with a mounting hole plate 15 on the top, and a plurality of first bolt holes 151 are arranged on the mounting hole plate 15. The upper bench 1a is provided with second bolt holes 16 matched with the first bolt holes 151 on the top. During installation, the upper bench 1a is placed above the lower bench 1b, the second bolt holes 16 are aligned with the first bolt holes 151, then the bolts are passed through the second bolt holes 16 and the first bolt holes 151, and the nuts are tightened to firmly fix the upper bench 1a on the lower bench 1b. The design of arranging a plurality of first bolt holes 151 on the mounting hole plate 15 makes the connection more firm and reliable, and can withstand various loads and vibrations generated during testing. At the same time, the multiple bolt connections also make the disassembly operation simple and fast, and the upper bench 1a can be easily removed from the lower bench 1b by loosening the nuts one by one.

[0046] In order to facilitate the movement and positioning of the test bench, a plurality of pulleys 3 are arranged in a rectangular array at the bottom of the lower bench 1b. The arrangement of the pulleys 3 makes the test bench easy to move on the ground of the workshop without the need for auxiliary tools such as lifting equipment or forklifts, reducing the operation difficulty and safety risk. The rectangular array arrangement of the plurality of pulleys 3 can ensure the stability of the test bench during movement and prevent overturning or tilting.

[0047] Meanwhile, the bottom of the lower bench 1b is also arranged with a plurality of liftable foot cups 4 in a rectangular array. The liftable foot cups 4 are used for accurate horizontal adjustment and stable fixing after the test bench is in place. The liftable foot cups 4 can adjust their extension length by rotation, thereby compensating for the unevenness of the ground and ensuring that the test bench is in a horizontal state. When the test bench is moved to the designated position, the liftable foot cups 4 are adjusted downward to be in contact with the ground and support the entire test bench, at this time, the pulley 3 is away from the ground, and the test bench is stably fixed in this position and will not move due to external force or vibration during the test. The plurality of liftable foot cups 4 arranged in a rectangular array can provide stable multi-point support for the test bench, ensuring the stability during the test and the accuracy of the test results.

[0048] In actual use, the working process of the speed reducer test bench for the vehicle-mounted table plate is as follows:

[0049] Firstly, according to the actual installation angle of the vehicle-mounted table plate to be tested, the nut on the fixing screw 14 is loosened, the inclination angle of the adjustable mounting plate 12 relative to the vertical support arm 11 is adjusted, so as to match the inclination angle of the seat backrest in the actual vehicle. After the adjustment is completed, the nut on the fixing screw 14 is tightened to fix the adjustable mounting plate 12 at the angle. This step ensures the consistency of the test conditions and the actual use environment, so that the test results have more reference value.

[0050] Then, the motor sends a control signal to the motor in the speed reducer 22 through the motor driving plate 23, and the motor is started. After the motor starts to rotate, the power is transmitted through the transmission mechanism (such as gear set, worm and gear, etc.) inside the speed reducer 22 for speed reduction and torque increase, and finally output by the output shaft 221. The rotation of the output shaft 221 drives the first connecting rod 241 connected coaxially with it to rotate, and the rotation of the first connecting rod 241 drives the table plate simulation piece 21 to rotate relative to the adjustable mounting plate 12 through the connection of the first connecting rod 241 with the table plate simulation piece 21. In this process, the second connecting rod 242 plays a stabilizing and restraining role to ensure that the table plate simulation piece 21 moves along the predetermined track and realizes smooth unfolding or retracting action.

[0051] During the test, the output torque, speed, motion stability, noise and other performance parameters of the speed reducer 22 can be monitored and recorded. At the same time, different loads can be applied to the table plate simulation piece 21 to simulate the weight borne by the table plate in actual use, and the performance of the speed reducer 22 under different load conditions can be tested. Life tests of repeated unfolding and retracting can also be carried out to verify the durability and reliability of the speed reducer 22 and the connecting rod mechanism 24.

[0052] By adjusting the inclination angle of the adjustable mounting plate 12, the working state of the table plate at different inclination angles of the seat backrest can be simulated, and the performance of the reduction gearbox 22 in various postures can be comprehensively evaluated. The flexible angle adjustment capability enables the test bench to adapt to the test requirements of various vehicle models and various use scenarios, greatly improving the comprehensiveness and accuracy of the test.

[0053] The reduction gearbox test bench for the vehicle-mounted table plate provided by the utility model has the following remarkable technical effects:

[0054] First, the structure is compact and the floor area is small. By directly installing the simulation table plate assembly 2 on the test bench 1, no additional large frame structure is needed, and the overall size is greatly reduced. Compared with the test bench in the prior art which needs to be equipped with a large frame to accommodate the maximum expansion stroke of the table plate, the floor area of the test bench of the utility model can be greatly reduced, significantly reducing the requirements for the test site and saving the factory space.

[0055] Second, the manufacturing cost is low. The test bench 1 can be manufactured by simple welding or bolt connection using standard profiles, without complex machining. The angle adjustment mechanism of the adjustable mounting plate 12 can be realized only by the hinge hole 1221, the arc-shaped slot hole 1222, the hinge screw 13 and the fixing screw 14, which is simple in structure and easy to process.

[0056] Third, it is convenient to transport and disassemble. The split design of the upper test bench 1a and the lower test bench 1b enables the test bench to be easily disassembled into two parts for packaging and transportation, greatly reducing the packaging volume. At the transportation destination, the test bench can be quickly assembled by bolt connection, without the need for professional technicians and special tools, reducing the installation difficulty and cost. The pulley 3 at the bottom of the lower test bench 1b enables the test bench to be easily moved without the need for auxiliary equipment such as a forklift.

[0057] Fourth, the angle adjustment is flexible and the test conditions are close to reality. The adjustable mounting plate 12 can freely adjust the inclination angle within a certain range (such as 0° to 45°) through the cooperation of the hinge hole 1221 and the arc-shaped slot hole 1222, accurately simulating the installation angle of the vehicle seat backrest in different inclination states. This flexible angle adjustment capability enables the test bench to comprehensively evaluate the performance of the vehicle-mounted table plate in various actual use postures, ensuring that the product can work normally under various working conditions. Compared with the test bench with fixed angle, the test bench of the utility model can find more potential design defects and performance problems, improving the product quality.

[0058] Fifth, strong versatility, good adaptability. By adjusting the position of the articulated screw rod 13 and the fixed screw rod 14 in the strip-shaped through groove 111, the installation height of the adjustable mounting plate 12 can be changed to adapt to different specifications of the table plate simulation piece 21. The detachable design of the connecting boss 123 allows different specifications of the connecting boss 123 to be replaced to adapt to different connecting rod mechanisms 24. This flexible adjustable design enables the test bench to be applicable to the testing of various specifications and models of vehicle-mounted table plate reduction boxes, greatly improving the utilization rate and economy of the equipment.

[0059] Sixth, good stability and high testing accuracy. The rectangular array arrangement of the four vertical support arms 11 provides a stable structural foundation for the test bench 1. The multiple liftable foot cups 4 at the bottom of the lower test bench 1b can accurately adjust the levelness of the test bench, eliminating the influence of uneven ground. The stable four-bar linkage mechanism formed by the first connecting rod 241 and the second connecting rod 242 ensures the smoothness of the movement of the table plate simulation piece 21 and the accuracy of the trajectory. These designs together ensure the stability of the testing process and the accuracy of the test results, providing a reliable technical means for the quality control of vehicle-mounted table plate reduction boxes.

[0060] Unless otherwise defined, technical terms or scientific terms used herein should be understood as having the common meaning in the field of the present application to which they belong. The use of "first", "second" and similar words in the patent application specification and claims of the present application does not indicate any order, quantity or importance, but is only used to distinguish different components. Similarly, "one" or "a" and similar words do not indicate a quantity limitation, but indicate the existence of at least one. "Include" or "contain" and similar words mean that the elements or objects appearing before "include" or "contain" cover the elements or objects listed after "include" or "contain" and their equivalents, and do not exclude other elements or objects. "Connected" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships, which may change accordingly when the absolute position of the described object changes.

[0061] The above is only an optional embodiment of the present application and does not limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A test bench for a reduction gearbox of a vehicle table, characterized in that, The utility model relates to a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly.

2. The test bench for the reduction gearbox of the vehicle table board according to claim 1, characterized in that, The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly.

3. The test bench for the reduction gearbox of the vehicle table board according to claim 2, characterized in that, The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly.

4. The test bench for the reduction gearbox of the vehicle table board according to claim 2, characterized in that, The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. 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The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to the field of table stand and simulation table board assembly. The utility model discloses a table stand and a simulation table board assembly, and belongs to 5. The test bench for the reduction gearbox of a table for a vehicle according to claim 4, characterized in that, The connecting boss (123) is a strip-shaped cube arranged along the side edge of the connecting plate (121), the connecting rod mechanism (24) comprises a first connecting rod (241) and a second connecting rod (242), one end of the first connecting rod (241) is rotationally connected with the bottom of the side face of the connecting boss (123), the other end is rotationally connected with the bottom of the side edge of the table plate simulation piece (21) and coaxially connected with the output shaft (221) of the speed reducer (22), one end of the second connecting rod (242) is rotationally connected with the top of the side face of the connecting boss (123), the other end is rotationally connected with the side edge of the table plate simulation piece (21) and arranged in interval with the other end of the first connecting rod (241).

6. The test bench for the reduction gearbox of a table for a vehicle according to claim 1, characterized in that, Four vertical support arms (11) are arranged on the gantry (1) in a rectangular array.

7. The test bench for the reduction gearbox of a table for a vehicle according to any one of claims 1 to 6, characterized in that, The gantry (1) comprises an upper gantry (1a) and a lower gantry (1b), the vertical support arm (11) is located on the upper gantry (1a), and the upper gantry (1a) is detachably installed above the lower gantry (1b).

8. The test bench for the reduction gearbox of a table for a vehicle according to claim 7, characterized in that, A mounting hole plate (15) is arranged on the top of the lower gantry (1b), a plurality of first bolt holes (151) are arranged in an array on the mounting hole plate (15), and a second bolt hole (16) matched with the first bolt hole (151) is arranged on the top of the upper gantry (1a).

9. The test bench for the reduction gearbox of a table board for a vehicle according to claim 7, characterized in that, A plurality of pulleys (3) are arranged in a rectangular array on the bottom of the lower gantry (1b).

10. The test bench for the reduction gearbox of a table for a vehicle according to claim 7, characterized in that, A plurality of liftable foot cups (4) are arranged in a rectangular array on the bottom of the lower gantry (1b).

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