Torque testing equipment for reduction gearbox

Abstract

The utility model relates to the technical field of motor manufacturing and motor testing, in particular to a reduction gearbox torque testing device which comprises a testing mechanism, a standard mechanism, a station standard mechanism, a control cabinet and a fence. The station standard mechanism is directly arranged on the ground and comprises a welding base, a line body, a small counter-force lifting mechanism, a tray, a workpiece online detector and a stand column. The line body is erected on the welding base directly through the supporting legs, and the small counter-force lifting mechanism is directly installed on the welding base through the lifting base and arranged in the line body. The control cabinet is installed on the welding base, the fence wraps the station standard mechanism, the standard mechanism is directly installed on a stand column of the station standard mechanism, and the testing mechanism is installed on a linear guide rail of the standard mechanism through a welding connecting plate. According to the utility model, through mutual cooperation of internal parts of the small counterforce lifting mechanism, the problem of invalid test caused by position offset in the test process can be prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor manufacturing and motor test technical field, concretely relates to a reduction gearbox torque test equipment. BACKGROUND

[0002] In the existing reduction gearbox torque test, due to the problems such as low precision of test equipment, complex operation and low automation degree, the accuracy and efficiency of test results are affected. Therefore, it is necessary to develop a new type of reduction gearbox torque test equipment to improve the accuracy and efficiency of torque test.

[0003] Through the retrieval, the patent with the publication number CN109632292A specifically discloses a gear box torque test equipment, which comprises a workbench, a base, a support table, an L-shaped support plate, an electric actuator, a bearing seat, a universal transmission shaft, a torque sensor, a square plate, a gear box, a long screw rod, a T-shaped strip plate, a strip-shaped sliding groove, a sliding block, a screw rod support plate, a fixed plate, a side support, a connecting base plate, a connecting hole, a limiting nut, a limiting perforation, a first threaded hole and a second threaded hole. The present application is reasonable in design, can reliably transmit power under the condition that the included angle and distance between the output shaft and the input shaft frequently change, is beneficial to obtaining the required torque, adopts the mode of sliding movement to carry the gear box to the driving connection, so as to reduce the damage of the connecting shaft during operation, and plays a protective role in the no-load detection process of unqualified gear boxes. In order to facilitate the operation of the operator, all important components are detachably connected.

[0004] Through the retrieval, the utility model patent with the publication number CN221077887U specifically discloses a differential torque test equipment, which comprises a detection table, a test mechanism is arranged on the top of the detection table, a jacking mechanism is further arranged on the top surface of the detection table, the jacking mechanism is arranged below the test mechanism, a feeding mechanism is arranged in the detection table, the test mechanism comprises a loading table, a mounting plate, a lifting electric cylinder, a lifting table, a rotary motor, a torque limiter, a torque sensor, a pressing table and the like. The utility model discloses a test mechanism, which utilizes the lifting electric cylinder to push down the lifting table, positions the toothed spline by tooth-tooth positioning, fixes the differential by the pressing cylinder and the pressing block, rotates by the rotary motor after fixing the differential, and tests the torque by the torque sensor, so that the differential torque is tested fast, efficiently, accurately and automatically without manual intervention.

[0005] Although the patent completes the torque test of the reduction gearbox and the like, the above-mentioned device does not have a floating mechanism, so that the test precision of the test device is low, the structure is complex, the cost is high, the working efficiency is low, and the production efficiency is not improved.

[0006] Therefore, it is necessary to provide a torque testing device for a reduction gearbox to solve the above problems. Utility model content

[0007] The utility model discloses a torque testing device for a reduction gearbox, which is convenient for workers to control the whole testing process through the control cabinet, and the fence is wrapped around the work station standard mechanism to facilitate the safety protection of the internal parts of the work station standard mechanism.

[0008] To achieve the above object, the utility model provides the following technical scheme: a torque testing device for a reduction gearbox, comprising a testing mechanism, a standard mechanism, a work station standard mechanism, a control cabinet and a fence.

[0009] The work station standard mechanism is directly placed on the ground and comprises a welded base, a line body, a small counterforce lifting mechanism, a tray, workpiece online detection and a column.

[0010] The control cabinet is installed on the welded base, and the fence is wrapped around the work station standard mechanism.

[0011] Preferably, the small counterforce lifting mechanism comprises a bottom plate, a roller support seat, a rotating seat, a rotating drive seat, a rotating shaft, a mechanical limit, a support seat, a protective cover, a cylinder mounting seat, a jacking plate, a positioning base, a sensing pin, a detection block, a positioning pin, a linear bearing, a lifting cylinder, a sensor and a sensing block.

[0012] Preferably, the standard mechanism is directly mounted on the column of the standard mechanism at the workstation. The standard mechanism includes a servo motor, a welding motor base, a linear guide rail, a fall protection mechanism, a ball screw, and a moving block. The servo motor is mounted on the welding motor base with bolts. The ball screw is connected to the servo motor and a moving block is mounted on it. The linear guide rail is located on both sides of the moving block, and a fall protection mechanism is mounted on the side of the linear guide rail.

[0013] Preferably, the fence includes a safety door lock, a button box, a tri-color light, and an HMI; the fall protection mechanism includes a ratchet mechanism, a pin cylinder, a proximity switch, and a sheet metal bracket; and the servo motor is connected to a ball screw via a coupling.

[0014] Preferably, the testing mechanism includes a welded connecting plate, a test base plate, cylindrical rods, a test transition plate, a test top plate, a test motor, a coupling, a torque sensor, a test connecting rod, a rotary bearing, a sensing bracket, a second sensor, a bearing housing, a spring, a transition bushing, a joint, a test contact rod, a support sleeve, a support rod, a compression spring, and a cable chain; and the testing mechanism is mounted on the linear guide rail of a standard mechanism via the welded connecting plate and driven by a servo motor. The test base plate is mounted on the welded connecting plate, and the test base plate is connected to the test transition plate via a cylindrical rod. The test transition plate is also connected to the test top plate via a cylindrical rod. The test motor is mounted on the test top plate and connected above it. Two couplings are used, with a torque sensor installed between them. A test rod is connected to the lower coupling, passing through a test base plate. Two rotary bearings are installed at the front end of the test rod, and a sensor bracket is installed on the side of the test rod, with a sensor connected to its top. Bearing seats are fitted around the bearings and are mounted on the test base plate. A spring is installed below the test base plate and is fitted onto the test rod. An intermediate bushing is installed at the rear end of the test rod, and a connector is connected below the intermediate bushing. A test contact rod is bolted to the connector. Four support sleeves are also installed on the test base plate, each with a support rod inside. Compression springs are installed on the outside of the support rods. A drag chain is installed on the side of the entire mechanism.

[0015] Preferably, the torque sensor is used to monitor the torque of the test motor in real time and transmit it to the HMI in real time; the cable chain is used to install cables and air hoses; and the support rod consists of four rods that are installed on the test base plate.

[0016] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0017] 1. Four linear bearings are installed on the base plate for guiding. Mechanical limit switches are directly installed on the base plate for lifting positioning. The support base is directly connected to the lifting plate and protected by a protective cover. The support base is in direct contact with the rollers for guiding and limiting. A sensing pin is installed inside the positioning base to detect whether the tray is in position. A sensing block is installed on the lifting plate to detect whether the lifting cylinder is in position. Online workpiece detection is used to detect whether the workpiece is in position. The column serves as the base. Through the cooperation of the internal parts of the small reaction force lifting mechanism, positional deviation during testing can be prevented, thus preventing invalid testing.

[0018] 2. The anti-fall mechanism includes a ratchet mechanism, a pin cylinder, a proximity switch, and a sheet metal bracket. When the equipment is powered off, the pin cylinder immediately extends and presses against the ratchet mechanism to prevent the moving mechanism from falling and damaging the equipment. The servo motor is connected to the ball screw via a coupling, which facilitates precise control of the movement of the testing mechanism. The linear guide rail provides downward guidance.

[0019] 3. The drag chain installed along the side of the entire mechanism provides protection for cables and air hoses and saves space. Four support rods are installed on the test base plate to provide support. A torque sensor is used to monitor the torque of the test motor in real time, and the data is transmitted to the HMI in real time for customers to obtain real-time feedback. Compression springs are installed on the outside of the support rods to allow for floating. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0021] Figure 1 This is a front view schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a top view of the overall structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the overall structure of this utility model from the left side;

[0024] Figure 4 This is an axonometric view of the overall structure of this utility model;

[0025] Figure 5This is an axonometric schematic diagram of the standard workstation mechanism of this utility model.

[0026] Figure 6 This is an axonometric schematic diagram of the small reaction force lifting mechanism of this utility model;

[0027] Figure 7 This is a top view of the testing mechanism of this utility model;

[0028] Figure 8 This is an isometric view of the testing mechanism of this utility model;

[0029] Figure 9 This is an isometric view of the standard mechanism of this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Testing facility; 2. Standard facility; 3. Workstation standard facility; 4. Fence; 5. Control cabinet;

[0032] 1-1 Welded connecting plate; 1-2 Cable chain; 1-3 Test contact rod; 1-4 Joint; 1-5 Transition bushing; 1-6 Spring; 1-7 Support rod; 1-8 Compression spring; 1-9 Support sleeve; 1-10 Bearing housing; 1-11 Test connecting rod; 1-12 Sensor 1; 1-13 Torque sensor; 1-14 Cylindrical rod; 1-15 Test motor; 1-16 Test top plate; 1-17 Coupling; 1-18 Test transition plate; 1-19 Induction bracket; 1-20 Test base plate; 1-21 Induction pin; 1-22 Rotary bearing;

[0033] 2-1. Servo motor; 2-2. Welded motor mount; 2-3. Linear guide rail; 2-4. Moving block; 2-5. Ball screw; 2-6. Fall protection mechanism;

[0034] 3-1 Welding base; 3-2 Small reaction force lifting mechanism; 3-3 Production line; 3-4 Pallet; 3-5 Online workpiece inspection; 3-6 Column;

[0035] 3-2-1, Base plate; 3-2-2, Sensor 2; 3-2-3, Rotating shaft; 3-2-4, Roller support seat; 3-2-5, Rotary drive seat; 3-2-6, Sensor block; 3-2-7, Protective cover; 3-2-8, Rotating seat; 3-2-9, Linear bearing; 3-2-10, Mechanical limit switch; 3-2-11, Support seat; 3-2-12, Positioning base; 3-2-13, Leveling block; 3-2-14, Positioning pin; 3-2-15, Sensor pin; 3-2-16, Lifting plate; 3-2-17, Lifting cylinder; 3-2-18, Cylinder mounting seat. Detailed Implementation

[0036] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0037] This utility model provides, for example Figures 1-9 The gearbox torque testing equipment shown includes a testing mechanism 1, a standard mechanism 2, a station standard mechanism 3, a control cabinet 5, and a fence 4;

[0038] The standard workstation mechanism 3 is placed directly on the ground and includes a welding base 3-1, a production line 3-3, a small reaction force lifting mechanism 3-2, a pallet 3-4, an online workpiece inspection system 3-5, and a column 3-6. The production line 3-3 is directly supported on the welding base 3-1 using outriggers, and the small reaction force lifting mechanism 3-2 is directly installed on the welding base 3-1 through a lifting base and placed inside the production line 3-3.

[0039] The control cabinet 5 is installed on the welding base 3-1, and the fence 4 surrounds the standard mechanism 3 of the workstation.

[0040] The control cabinet 5 facilitates worker control of the entire testing process. The fence 4 encloses the standard mechanism 3 at the workstation, providing safety protection for the internal components. The standard mechanism 3 at the workstation includes a welding base 3-1, a line 3-3, a small reaction force lifting mechanism 3-2, a tray 3-4, an online workpiece inspection system 3-5, and a column 3-6, which facilitates the movement of the gearbox to be tested by the standard mechanism 3.

[0041] Refer to the instruction manual appendix Figures 1-9The small reaction force lifting mechanism 3-2 includes a base plate 3-2-1, a roller support seat 3-2-4, a rotating seat 3-2-8, a rotating drive seat 3-2-5, a rotating shaft 3-2-3, a mechanical limit 3-2-10, a support seat 3-2-11, a protective cover 3-2-7, a cylinder mounting seat 3-2-18, a lifting plate 3-2-16, a positioning base 3-2-12, a sensing pin 3-2-15, a leveling block 3-2-13, a positioning pin 3-2-14, a linear bearing 3-2-9, a lifting cylinder 3-2-17, a sensor 3-2-2, and a sensing block 3-2-6. Four linear bearings 3-2-9 are mounted on the base plate 3-2-1, and the roller support seat 3-2-4 is mounted at the bottom. The rotating seat 3-2-8 and the rotating drive seat 3-2-5 are mounted on the roller support seat 3-2-4 via the rotating shaft 3-2-3. Mechanical limit switch 3-2-10 is directly installed on the base plate 3-2-1; support seat 3-2-11 is directly connected to the lifting plate 3-2-16, and its exterior is protected by a protective cover 3-2-7; support seat 3-2-11 is in direct contact with the rollers; lifting cylinder 3-2-17 is connected to cylinder mounting seat 3-2-18, and cylinder mounting seat 3-2-18 is installed on the base plate 3-2-1; positioning base 3-2-12 is installed on the lifting plate 3-2-16, and leveling block 3-2-13 and positioning pin 3-2-14 are installed on the positioning base 3-2-12. Among them, sensing pin 3-2-15 is installed inside the two positioning bases 3-2-12, and sensing pin 3-2-15 senses whether the tray is in position through a sensor; sensor 3-2-2 is installed on the base plate 3-2-1, and sensing block 3-2-6 is installed on the lifting plate 3-2-16. The pallet 3-4 moves to the working position, and the small reaction force lifting mechanism 3-2 acts on the pallet 3-4; the column 3-6 is directly installed on the welding base 3-1.

[0042] Four linear bearings 3-2-9 are installed on the base plate 3-2-1 to facilitate their guiding function. Mechanical limiters 3-2-10 are directly mounted on the base plate 3-2-1 for positioning during lifting. A support base 3-2-11 connects directly to the lifting plate 3-2-16, and the support is protected by a cover 3-2-7. The support base 3-2-11 directly contacts the rollers for guiding and limiting functions. A positioning base 3-2-12 is also present. An internal sensing pin 3-2-15 is installed to facilitate sensing whether the tray is in position via sensor 3-2-2. A sensing block 3-2-6 is installed on the lifting plate 3-2-16 to facilitate sensing whether the lifting cylinder 3-2-17 is in position. The workpiece online detection 3-5 is used to detect whether the workpiece is in position. The column 3-6 is used as a base. Through the cooperation of the internal parts of the small reaction force lifting mechanism 3-2, the problem of position displacement during the test, which would lead to invalid test results, can be prevented.

[0043] Refer to the instruction manual appendix Figures 1-9 The standard mechanism 2 includes a servo motor 2-1, a welding motor base 2-2, a linear guide rail 2-3, a fall protection mechanism 2-6, a ball screw 2-5, and a moving block 2-4. The servo motor 2-1 is bolted to the welding motor base 2-2. The ball screw 2-5 is connected to the servo motor 2-1 and the moving block 2-4 is mounted on it. The linear guide rail 2-3 is located on both sides of the moving block 2-4, and the fall protection mechanism 2-6 is mounted on the side of the linear guide rail 2-3.

[0044] Refer to the instruction manual appendix Figures 1-9 The fence 4 includes a safety door lock, a button box, a tri-color light, and an HMI. The fall protection mechanism 2-6 includes a ratchet mechanism, a pin cylinder, a proximity switch, and a sheet metal bracket. The servo motor 2-1 is connected to the ball screw 2-5 via a coupling.

[0045] The anti-fall mechanism 2-6 includes a ratchet mechanism, a pin cylinder, a proximity switch, and a sheet metal bracket. When the equipment is powered off, the pin cylinder immediately extends and presses against the ratchet mechanism to prevent the moving mechanism from falling and damaging the equipment. The servo motor 2-1 is connected to the ball screw 2-5 via a coupling, which facilitates precise control of the movement of the testing mechanism 1. The linear guide rail 2-3 is installed to provide downward guidance.

[0046] Refer to the instruction manual appendix Figures 1-9The testing mechanism 1 includes a welded connecting plate 1-1, a test base plate 1-20, a cylindrical rod 1-14, a test transition plate 1-18, a test top plate 1-16, a test motor 1-15, a coupling 1-17, a torque sensor 1-13, a test connecting rod 1-11, a rotary bearing 1-22, a sensing bracket 1-19, a second sensor 1-12, a bearing seat 1-10, a spring 1-6, a transition bushing 1-5, a joint 1-4, a test contact rod 1-3, a support sleeve 1-9, and a support rod 1-7. Compression spring 1-8, cable chain 1-2; and the test mechanism 1 is mounted on the linear guide rail 2-3 of the standard mechanism 2 via a welded connecting plate 1-1, driven by a servo motor 2-1. A test base plate 1-20 is mounted on the welded connecting plate 1-1. The test base plate 1-20 is connected to the test transition plate 1-18 via four cylindrical rods 1-14. The test transition plate 1-18 is also connected to the test top plate 1-16 via four cylindrical rods 1-14. The test motor 1-15 is mounted on the test top plate 1-16. Two couplings 1-17 are connected at the top, and a torque sensor 1-13 is installed between the couplings 1-17. A test rod 1-11 is connected to the lower coupling 1-17. The test rod 1-11 passes through the test base plate 1-20, and two rotary bearings 1-22 are installed at its front end. A sensor bracket 1-19 is installed on the side of the test rod 1-11, and a sensor 1-12 is connected to its top end. Bearing seats 1-10 are fitted around the bearings 1-22 and are installed on the test base plate 1-20. Above, a spring 1-6 is installed below the test base plate 1-20. The spring 1-6 is fitted onto the test connecting rod 1-11. An intermediate bushing 1-5 is installed at the rear end of the test connecting rod 1-11. A connector 1-4 is connected below the intermediate bushing 1-5. The test contact rod 1-3 is bolted to the connector 1-4. Four support sleeves 1-9 are also installed on the test base plate 1-20. Each support sleeve 1-9 has a support rod 1-7 inside. A compression spring 1-8 is installed on the outside of the support rod 1-7. A drag chain 1-2 is installed on the side of the entire mechanism.

[0047] Refer to the instruction manual appendix Figures 1-9 Torque sensors 1-13 are used to monitor the torque of the test motor in real time and transmit it to the HMI in real time. Cable chains 1-2 are used to install cables and air pipes. Support rods 1-7 consist of 4 rods and are installed on the test base plate.

[0048] The drag chains 1-2 are installed along the side of the entire mechanism to protect the cables and air pipes and save space. Four support rods 1-7 are installed on the test base plate to provide support. Torque sensors 1-13 are used to monitor the torque of the test motor in real time and transmit the monitored data to the HMI in real time for customers to obtain real-time feedback. Compression springs 1-8 are installed on the outside of the support rods 1-7 to allow them to float.

[0049] The working principle of this practical application is as follows:

[0050] Refer to the instruction manual appendix Figures 1-9 When the device is in operation, line 3-3 transports tray 3-4 to the torque testing station. Upon reaching the designated position, the blocking cylinder engages to hold tray 3-4 in place, and the check cylinder engages to prevent tray 3-4 from flowing back. At this time, the small reaction force lifting mechanism 3-2 at the bottom of tray 3-4 engages, and the lifting cylinder 3-2-17 extends to position and lift tray 3-4. Subsequently, after the workpiece is in place, the workpiece in-place component detects 3-5 and, once the workpiece is in place, the servo motor 2-1 engages, driving the testing mechanism 1 to move down to the testing area. The testing contact rod 1-3 docks with the workpiece. After docking, the testing motor 1-15 engages, and the torque sensor 1-13 monitors and transmits the test results in real time. When the test is completed, all components return to their original positions. Thus, the entire workflow is completed, forming a cycle.

[0051] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A gearbox torque testing device, characterized in that: It includes a testing unit (1), a standard unit (2), a workstation standard unit (3), a control cabinet (5), and a fence (4); The standard workstation mechanism (3) is placed directly on the ground and includes a welding base (3-1), a production line (3-3), a small reaction force lifting mechanism (3-2), a tray (3-4), an online workpiece inspection system (3-5), and a column (3-6). The production line (3-3) is directly supported on the welding base (3-1) by means of support legs. The small reaction force lifting mechanism (3-2) is directly installed on the welding base (3-1) through the lifting base and is placed inside the production line (3-3). The control cabinet (5) is mounted on the welding base (3-1), and the fence (4) surrounds the workstation standard mechanism (3).

2. The gearbox torque testing device according to claim 1, characterized in that: The small reaction force lifting mechanism (3-2) includes a base plate (3-2-1), a roller support seat (3-2-4), a rotating seat (3-2-8), a rotating drive seat (3-2-5), a rotating shaft (3-2-3), a mechanical limit switch (3-2-10), a support seat (3-2-11), a protective cover (3-2-7), a cylinder mounting seat (3-2-18), a lifting plate (3-2-16), a positioning base (3-2-12), a sensing pin (3-2-15), a leveling block (3-2-13), and a positioning pin (3-2-14). The system includes linear bearings (3-2-9), a lifting cylinder (3-2-17), sensor 1 (3-2-2), and a sensing block (3-2-6). Four linear bearings (3-2-9) are mounted on the base plate (3-2-1), and a roller support seat (3-2-4) is installed at the bottom. The rotating seat (3-2-8) and the rotating drive seat (3-2-5) are mounted on the roller support seat (3-2-4) via a rotating shaft (3-2-3). The mechanical limiter (3-2-10) is directly mounted on the base plate (3-2-1). The support base (3-2-11) is directly connected to the lifting plate (3-2-16), and is protected by a protective cover (3-2-7); the support base (3-2-11) is in direct contact with the rollers; the lifting cylinder (3-2-17) is connected to the cylinder mounting base (3-2-18), which is mounted on the base plate (3-2-1); a positioning base (3-2-12) is installed on the lifting plate (3-2-16), and a leveling block (3-2-13) and a positioning pin are installed on the positioning base (3-2-12). 3-2-14), wherein two positioning bases (3-2-12) are equipped with sensing pins (3-2-15), and the sensing pins (3-2-15) sense whether the tray is in place through sensors; the first sensor (3-2-2) is installed on the base plate (3-2-1), and the sensing block (3-2-6) is installed on the lifting plate (3-2-16); the tray (3-4) moves to the working position, and the small reaction force lifting mechanism (3-2) acts on the tray (3-4); the column (3-6) is directly installed on the welding base (3-1).

3. The gearbox torque testing device according to claim 2, characterized in that: The standard mechanism (2) is directly installed on the column (3-6) of the standard mechanism (3) at the workstation. The standard mechanism (2) includes a servo motor (2-1), a welding motor base (2-2), a linear guide rail (2-3), a fall protection mechanism (2-6), a ball screw (2-5), and a moving block (2-4). The servo motor (2-1) is installed on the welding motor base (2-2) with bolts. The ball screw (2-5) is connected to the servo motor (2-1) and the moving block (2-4) is installed on it. The linear guide rail (2-3) is located on both sides of the moving block (2-4), and the fall protection mechanism (2-6) is installed on the side of the linear guide rail (2-3).

4. The gearbox torque testing device according to claim 3, characterized in that: The fence (4) includes a safety door lock, a button box, a tri-color light and an HMI. The fall protection mechanism (2-6) includes a ratchet mechanism, a pin cylinder, a proximity switch and a sheet metal bracket. The servo motor (2-1) is connected to the ball screw (2-5) by a coupling.

5. The gearbox torque testing device according to claim 3, characterized in that: The testing mechanism (1) includes a welded connecting plate (1-1), a test base plate (1-20), a cylindrical rod (1-14), a test transition plate (1-18), a test top plate (1-16), a test motor (1-15), a coupling (1-17), a torque sensor (1-13), a test connecting rod (1-11), a rotary bearing (1-22), a sensing bracket (1-19), a second sensor (1-12), a bearing seat (1-10), a spring (1-6), a transition bushing (1-5), a joint (1-4), a test contact rod (1-3), a support sleeve (1-9), and a support rod (1-22). 1-7), compression spring (1-8), drag chain (1-2); and the test mechanism (1) is mounted on the linear guide rail (2-3) of the standard mechanism (2) via a welding connecting plate (1-1), driven by a servo motor (2-1). A test base plate (1-20) is mounted on the welding connecting plate (1-1), and the test base plate (1-20) is connected to the test transition plate (1-18) by four cylindrical rods (1-14). The test transition plate (1-18) is also connected to the test top plate (1-16) by four cylindrical rods (1-14). The test motor (1-15) is mounted on the test top plate (1-7). 16) On the upper part, two couplings (1-17) are connected, and a torque sensor (1-13) is installed between the couplings (1-17). The lower coupling (1-17) is connected to a test rod (1-11), which passes through the test base plate (1-20). Two rotary bearings (1-22) are installed at the front end of the test rod (1-11). A sensor bracket (1-19) is installed on the side of the test rod (1-11), and a second sensor (1-12) is connected to its top. A bearing seat (1-10) is fitted on the outside of the bearing (1-22), and the bearing seat (1-10) is installed on the test base plate (1-20). On the test base plate (1-20), a spring (1-6) is installed below the test base plate (1-20). The spring (1-6) is fitted onto the test connecting rod (1-11). An intermediate bushing (1-5) is installed at the rear end of the test connecting rod (1-11). A connector (1-4) is connected below the intermediate bushing (1-5). The test contact rod (1-3) is bolted to the connector (1-4). Four support sleeves (1-9) are also installed on the test base plate (1-20). Each support sleeve (1-9) has a support rod (1-7) inside. A compression spring (1-8) is installed on the outside of the support rod (1-7). A drag chain (1-2) is installed on the side of the entire mechanism.

6. The gearbox torque testing device according to claim 5, characterized in that: The torque sensor (1-13) is used to monitor the torque of the test motor in real time and transmit it to the HMI in real time. The cable chain (1-2) is used to install cables and air pipes. The support rod (1-7) consists of 4 rods and is installed on the test base plate.

Images