Multiplier tester

Abstract

The invention relates to a multiplier tester which comprises a base, an output torsion sensor, a multiplier fixing platform, a lifting column, a flexible platform, a torsion motor and an input torsion sensor, the output torsion sensor is fixedly installed on the base, the lifting column is fixedly installed on the base, and the multiplier fixing platform is slidably installed on the lifting column. The flexible platform comprises a lifting platform plate, an X-axis adjusting mechanism, a Y-axis adjusting mechanism and a fixed platform plate, the lifting platform plate is arranged on the multiple lifting columns in a liftable mode to drive the whole flexible platform to ascend and descend, the X-axis adjusting mechanism is installed on the lifting platform plate, the Y-axis adjusting mechanism is installed on the X-axis adjusting mechanism, and the fixed platform plate is installed on the Y-axis adjusting mechanism; the torsion motor is fixedly installed on the top of the fixed platen, and an output shaft of the torsion motor penetrates through the fixed platen downwards. The input torsion sensor is installed on the output shaft of the torsion motor. The device has the advantages of high precision, high efficiency and capability of simulating a real person use environment to test the moment amplification factor of the multiplier.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of detection equipment, and in particular to a multiplier tester. BACKGROUND

[0002] Torque multiplier is also called torque amplifier, torque amplifier, and is often referred to as multiplier. It is a mechanical device, which is usually used in industry and automobile maintenance, especially in the case of limited space or insufficient operating force. Torque is amplified through planetary gear combination, and the amplification factor is usually 5-125 times, and the maximum output torque can reach 50,000 N·m. Its working principle is based on the gear reduction principle, which amplifies the torque by reducing the output speed, and is mainly used in industrial maintenance, mechanical operation and other fields, which can significantly reduce the difficulty of operating force.

[0003] As disclosed in Chinese patent application file CN108105349A, a speed reducer torque amplifier includes a torque amplifier body, a rotating rod is arranged in the torque amplifier body, a fastener is connected to the lower part of the rotating rod, a gear I is arranged on the upper part of the rotating rod, the gear I is connected with a force applying part through a transmission part, a pressure indicator is arranged on the transmission part, and the force applying part includes a gear II, an input rod is arranged on the gear II, and the input rod can indirectly drive the rotation of the gear I through the gear II to realize torque amplification.

[0004] The above patent application file records a typical planetary gear multiplier. Its characteristics of small torque input and large torque output make it suitable for various torque wrenches during assembly in the fields of ships, automobiles, aerospace, etc., which can obtain several times to dozens of times of amplified torque, realize large torque tightening in limited space, and operate simply and stably. It can effectively solve the problems of scarcity, labor and large space of large-range torque wrench.

[0005] It should be particularly noted that the characteristic of significantly amplifying torque of the multiplier makes it easy to damage the equipment due to the output of too large torque if the amplification factor is not accurate. The factors affecting the accuracy of the torque output of the torque multiplier generally include two, one is whether the output of the torque wrench (the input end of the multiplier) is accurate, and the other is whether the amplification factor of the multiplier is accurate.

[0006] Among them, the accuracy of the torque wrench is generally judged by the national metrology technical specification JJG707-2014 "Torque wrench verification regulation". As a multiplier production enterprise, it must ensure that the multiplier has the designed amplification factor. However, the amplification factor is affected by many factors such as part machining precision, process bearing and shaft gap, transmission gear deformation / wear, transmission system lubrication, etc. Therefore, the input and output torque of the multiplier need to be tested to detect whether the amplification factor meets the design requirements.

[0007] At present, the most common test method is to manually twist the torque wrench, input the set torque at the input end of the multiplier, and detect the torque output at the output end of the multiplier through the torque sensor, so as to calculate the amplification factor. This test amplification is low in efficiency and is greatly affected by the tester. To solve the above problems, the inventor of the present application is committed to designing a test device capable of testing the amplification factor of the multiplier with high precision and high efficiency, and based on this purpose, the present application is proposed. SUMMARY

[0008] In order to test the torque amplification factor of the multiplier with high precision and high efficiency, the present application provides a multiplier tester.

[0009] The multiplier tester provided by the present application adopts the following technical scheme: A multiplier tester, comprising a base, an output torque sensor, a multiplier fixing platform, lifting columns, a flexible platform, a torque motor and an input torque sensor, the base serving as a mounting base, the output torque sensor being fixedly installed on the base, the lifting columns being at least two and fixedly installed on the base, the multiplier fixing platform being slidingly installed on the lifting columns and located on one side of the output torque sensor, the flexible platform comprising a lifting platform, an X-axis adjusting mechanism, a Y-axis adjusting mechanism and a fixed platform, the lifting platform being liftably arranged on the lifting columns to drive the entire flexible platform to lift, the X-axis adjusting mechanism being installed on the lifting platform, the Y-axis adjusting mechanism being installed on the X-axis adjusting structure, the fixed platform being installed on the Y-axis adjusting mechanism, the torque motor being fixedly installed on the top of the fixed platform and having an output shaft penetrating downward through the fixed platform, and the input torque sensor being installed on the output shaft of the torque motor.

[0010] By adopting the above technical scheme, the most common multiplier amplification factor test method is to fix the multiplier, connect the torque wrench with a set torque to the input end of the multiplier by hand, connect the output end of the multiplier to the torque sensor, and directly read the reading of the torque sensor at the output end. This method is low in efficiency and greatly affected by the tester. More importantly, due to the fluctuation of data, it is difficult to accurately obtain the amplification factor.

[0011] The tester in the present application is used in the following way: the multiplier is fixedly installed on the multiplier fixing platform, and the output end of the multiplier is connected with the output torque sensor, and the height of the flexible platform on the lifting column is adjusted so that the height of the input torque sensor on the torque motor is adapted to the height of the input end of the multiplier, and then the horizontal position of the fixed platform on which the torque motor is fixed is moved by the X-axis adjusting mechanism and the Y-axis adjusting mechanism of the flexible platform, so that the position of the input torque sensor is connected with the input end of the multiplier.

[0012] After the multiplier is connected, the torque motor is started to output the set torque value through the torque sensor, and the device automatically reads the change curve of the input torque sensor and the output torque sensor, so as to output the torque ratio. And during the test, the torque motor on the flexible platform can still be slightly offset in the horizontal direction, and the input torque sensor and the output torque sensor can record the torque change curve of the input and output ends respectively. Such design can not only simulate the possible amplification fluctuation of the multiplier in actual use, but also clearly record the fluctuation, so as to not only output a fixed value of the amplification factor, but also make the test result more reasonable and more valuable, and avoid unpredictable results caused by the amplification fluctuation.

[0013] Optionally, the X-axis adjusting mechanism comprises an X-axis sliding rail, an X-axis platform, an X-axis mounting seat and an X-axis cylinder, the X-axis sliding rail is fixedly installed on the lifting platform, the X-axis platform is slidingly installed on the X-axis sliding rail, the X-axis mounting seat has two and is fixedly installed at two ends of the X-axis sliding rail respectively, and the X-axis cylinder has at least two and is fixedly installed on one X-axis mounting seat respectively.

[0014] By adopting the above technical scheme, the X-axis cylinder (which can be understood as a component with the same function as an oil cylinder or a servo motor) at both ends of the X-axis sliding rail can push the X-axis platform to adjust the position in the X-axis direction, so as to drive the Y-axis adjusting mechanism on the X-axis platform to move and adjust the position in the X-axis direction.

[0015] Optionally, the Y-axis adjusting mechanism comprises a Y-axis sliding rail, a Y-axis mounting seat and a Y-axis cylinder, the Y-axis sliding rail is fixedly installed on the X-axis platform, the Y-axis mounting seat has two and is fixedly installed at two ends of the Y-axis sliding rail respectively, the Y-axis cylinder has at least two and is fixedly installed on one Y-axis mounting seat respectively, and the fixed platform is slidingly installed on the Y-axis sliding rail, and the Y-axis cylinder is used to push the fixed platform to slide along the Y-axis sliding rail.

[0016] By adopting the above technical solution, the Y-axis cylinders at both ends of the Y-axis slide rail push the fixed platform to adjust its position in the Y-axis direction, thereby causing the torque motor located on the Y-axis platform to adjust its position accordingly. The input torque sensor connected to the output shaft of the torque motor also naturally adjusts its position in the Y-axis direction. Therefore, the X-axis adjustment mechanism and the Y-axis adjustment mechanism work together to adjust the horizontal position of the input torque sensor, thus adapting to the testing requirements of different multiplier models. Furthermore, after the X-axis cylinder or Y-axis cylinder resets, the fixed platform on the slide rail has a certain ability to shift horizontally during testing, rather than being completely fixed. This better simulates the torque fluctuations that may occur when manually using a multiplier, resulting in more accurate and valuable test results.

[0017] Optionally, a top platform is installed on the top of the lifting column, the bottom of the lifting column is fixedly connected to the base via a tensioning sleeve, and the top of the lifting column is fixedly connected to the top platform via a tensioning sleeve; and / or, The lifting platform is mounted on the lifting column in a height-reducing manner via ball bearing guide sleeves.

[0018] By adopting the above technical solution, the two ends of the lifting column are fixedly connected by the tensioning sleeve. Due to the characteristics of the tensioning sleeve, the position and size of the lifting column can be relatively fixed and it can be tightly installed with the main frame, thereby improving the structural strength.

[0019] The use of ball bearing guide sleeves ensures smooth lifting and lowering of the flexible work platform, while maintaining the platform's stability and strength.

[0020] Optionally, a drive structure for driving the lifting platform is installed on the top platform. The drive structure includes a lifting screw, a screw guide sleeve, and a synchronous drive component. There are two lifting screws, both of which are located between the base and the top platform. One end of the lifting screw is rotatably connected to the base, and the other end is rotatably connected to the top platform. The lifting screw rotates through the lifting platform. The screw guide sleeve is fixedly installed on the lifting platform and threadedly engaged with the lifting screw. The synchronous drive component is fixedly installed on the top platform to synchronously drive the two screws to rotate.

[0021] By adopting the above technical solution, the smooth lifting and lowering of the flexible platform is a technical challenge. This application sets two lead screws and drives the two lead screws to rotate synchronously through the drive component. With the help of the lead screw guide sleeve, the flexible platform can be lifted and lowered synchronously from multiple points, so as to avoid the problem of the flexible platform getting stuck due to unilateral drive.

[0022] Optionally, the synchronous drive component includes a drive motor, a gearbox, a universal coupling, and a bevel gear connector. The drive motor is fixedly mounted on the top platform. The gearbox is connected to the output shaft of the drive motor. The universal coupling has two shafts, each connected to one of the two output ports of the gearbox. The input end of the bevel gear connector is connected to the end of the universal coupling opposite to the gearbox. The output end of the bevel gear connector is connected to the top of the lifting screw.

[0023] By adopting the above technical solution, the drive motor is connected to a gearbox with one input and two outputs, which can output power synchronously and stably. The rotation of the drive motor is converted into the synchronous rotation of the universal coupling through the universal coupling. The bevel gear connector can convert the axial rotation of the universal coupling in the basically horizontal plane into the axial rotation of the lead screw in the basically vertical direction. This driving method is not only efficient, but also ensures the synchronous nature of the rotation of the two lead screws, which significantly reduces the possibility of jamming of the flexible platform.

[0024] Optionally, the base is provided with a power component for driving the multiplier fixing platform to rise and fall. The power component includes a lifting seat and a driver. A lifting column is slidably sleeved at each end of the lifting seat. The multiplier fixing platform is fixedly installed on the lifting seat. The driver is one of a cylinder, a hydraulic cylinder, or a servo motor and is fixedly installed on the base. The output end of the driver is fixedly connected to the lifting seat.

[0025] By adopting the above technical solution, and using a power component to drive the multiplier fixing platform to rise and fall in the vertical direction, it is possible to further ensure that the multiplier fixing platform is suitable for fixing, installing and connecting multipliers of different sizes and specifications.

[0026] Optionally, the multiplier fixing platform is provided with at least two first fixing posts and at least two second fixing posts, wherein the length of the first fixing posts is less than the length of the second fixing posts.

[0027] By adopting the above technical solution, the multiplier fixing platform can improve the installation compatibility of multipliers of different sizes and specifications.

[0028] Optionally, the input torque sensor is provided with a detachable adapter sleeve, and / or the output torque sensor is provided with a detachable adapter sleeve.

[0029] By adopting the above technical solution, the adapter sleeve enables a more convenient matching and connection between the multiplier and the torque sensor.

[0030] Optionally, a cable drag chain is provided between the base and the lifting platform; and / or, the base is provided with a housing, and the housing is provided with at least one openable operating door.

[0031] By adopting the above technical solutions, the outer casing improves operational safety, and the cable drag chain can protect the cable. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the tester in the embodiment of this application.

[0033] Figure 2 This is a schematic diagram of the overall structure of the tester in the embodiment of this application after removing the outer shell, and the view in the figure is a bird's-eye view.

[0034] Figure 3 This is a schematic diagram of the overall structure of the tester in the embodiment of this application after removing the outer shell, and the view in the figure is a tilted upward view.

[0035] Figure 4 This is a schematic diagram of the overall structure of the tester according to an embodiment of this application after removing the outer casing, and the view in the figure is a front view.

[0036] Figure 5 This is a schematic diagram of the overall structure of the flexible platform in the embodiments of this application.

[0037] Figure 6 This is a schematic diagram of the multiplier fixing platform and power component in an embodiment of this application, and the multiplier fixing platform and power component in the figure are exploded views.

[0038] Explanation of reference numerals in the attached drawings: 1. Base; 2. Lifting column; 21. Tensioning sleeve; 3. Top platform; 4. Flexible platform; 41. Lifting platform; 42. Ball bearing guide sleeve; 43. X-axis adjustment mechanism; 431. X-axis slide rail; 432. X-axis platform; 433. X-axis mounting base; 434. X-axis cylinder; 44. Y-axis adjustment mechanism; 441. Y-axis slide rail; 442. Y-axis mounting base; 443. Y-axis cylinder; 45. Fixed platform; 5. Torque motor; 6. Input torque transmitter 7. Sensor; 71. Drive structure; 72. Lifting screw; 73. Screw guide sleeve; 74. Synchronous drive component; 75. Drive motor; 76. Gearbox; 77. Universal coupling; 78. Bevel gear connector; 89. Multiplier fixing platform; 80. First fixing column; 81. Second fixing column; 90. Power component; 91. Lifting seat; 92. Driver; 10. Output torque sensor; 11. Adapter sleeve; 12. Cable drag chain; 13. Housing; 14. Operating door. Detailed Implementation

[0039] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0040] This application discloses a multiplier tester, including a base 1, lifting columns 2, and a top platform 3. The base 1 serves as the mounting foundation for all structural components. Optionally, the base 1 includes a storage compartment with an openable door. Four lifting columns 2 are all fixedly connected to the base 1 at their bottoms via tension sleeves 21, and are circumferentially fixed at the four corners of the base 1. The top platform 3 is also fixedly connected to the tops of the four lifting columns 2 via tension sleeves 21, forming a space between the base 1 and the top platform 3 to accommodate the various components.

[0041] A flexible platform 4 is slidably mounted on four lifting columns 2. The flexible platform 4 includes a lifting platform 41, an X-axis adjustment mechanism 43, a Y-axis adjustment mechanism 44, and a fixed platform 45. Each lifting platform 41 has a ball bearing guide sleeve 42 around its perimeter, which is used to slidably mount the lifting column 2. The X-axis adjustment mechanism 43 includes an X-axis slide rail 431, an X-axis platform 432, an X-axis mounting base 433, and an X-axis cylinder 434. The X-axis slide rail 431 is fixedly mounted on the lifting platform 41. The X-axis platform 432 is slidably mounted on the X-axis slide rail 431. There are two X-axis mounting bases 433, each fixedly mounted at one end of the X-axis slide rail 431. There are at least two X-axis cylinders 434, each fixedly mounted on one X-axis mounting base 433. The Y-axis adjustment mechanism 44 is mounted on the X-axis platform 432, and the X-axis cylinder 434 is used to push the X-axis platform 432 to slide along the X-axis slide rail 431. The Y-axis adjustment mechanism 44 includes a Y-axis slide rail 441, a Y-axis mounting base 442, and a Y-axis cylinder 443. The Y-axis slide rail 441 is fixedly installed on the X-axis platform 432. There are two Y-axis mounting bases 442, which are respectively fixedly installed at both ends of the Y-axis slide rail 441. There are at least two Y-axis cylinders 443, which are respectively fixedly installed on one Y-axis mounting base 442. The fixed platform 45 is slidably installed on the Y-axis slide rail 441. The Y-axis cylinder 443 is used to push the fixed platform 45 to slide along the Y-axis slide rail 441.

[0042] A torque motor 5 is fixedly installed on the fixed platform 45, and the output shaft of the torque motor 5 passes downward through the fixed platform 45. An input torque sensor 6 is also fixedly installed on the output shaft of the torque motor 5.

[0043] The top platform 3 is equipped with a drive structure 7 for driving the lifting platform 41 to rise and fall. The drive structure 7 includes a lifting screw 71, a screw guide sleeve 72, and a synchronous drive component 73. There are two lifting screws 71, both of which are located between the base 1 and the top platform 3. One end of the lifting screw 71 is rotatably connected to the base 1, and the other end of the lifting screw 71 is rotatably connected to the top platform 3. The lifting screw 71 rotates through the lifting platform 41. The screw guide sleeve 72 is fixedly installed on the lifting platform and threadedly engaged with the lifting screw 71. The synchronous drive component 73 is fixedly installed on the top platform 3 to synchronously drive the two screws to rotate.

[0044] Specifically, the synchronous drive unit 73 includes a drive motor 731, a gearbox 732, a universal coupling 733, and a bevel gear connector 734. The drive motor 731 is fixedly installed on the top platform 3. The gearbox 732 is connected to the output shaft of the drive motor 731. There are two universal couplings 733, which are respectively connected to the two output ports of the gearbox 732. The input end of the bevel gear connector 734 is connected to the end of the universal coupling 733 away from the gearbox 732. The output end of the bevel gear connector 734 is connected to the top of the lifting screw 71.

[0045] A multiplier fixing platform 8 is slidably mounted on the lead screw between the flexible platform 4 and the base 1, and can be raised and lowered. The multiplier fixing platform 8 is provided with at least two first fixing columns 81 and at least two second fixing columns 82. The length of the first fixing columns 81 is shorter than the length of the second fixing columns 82, which are used to fix multipliers of different models. The base 1 is provided with a power component 9 for driving the multiplier fixing platform 8 to rise and fall. The power component 9 includes a lifting seat 91 and a driver 92. The two ends of the lifting seat 91 are slidably sleeved on a lifting column 2, and the multiplier fixing platform 8 is fixedly installed on the lifting seat 91. The driver 92 is one of a cylinder, a hydraulic cylinder, or a servo motor and is fixedly installed on the base 1. The output end of the driver 92 is fixedly connected to the lifting seat 91.

[0046] An output torque sensor 10 is fixedly mounted on the base 1 below the multiplier mounting platform 8. To facilitate the adaptation of multipliers of different specifications, both the input torque sensor 6 and the output torque sensor 10 are equipped with detachable adapter sleeves 11.

[0047] A cable drag chain 12 is provided between the base 1 and the lifting platform 41, and the base 1 is provided with a housing 13, which is provided with at least one operable operating door 131.

[0048] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A multiplier tester, characterized in that: The system includes a base (1), an output torque sensor (10), a multiplier mounting platform (8), a lifting column (2), a flexible platform (4), a torque motor (5), and an input torque sensor (6). The base (1) serves as the mounting base. The output torque sensor (10) is fixedly mounted on the base (1). At least two of the lifting columns (2) are fixedly mounted on the base (1). The multiplier mounting platform (8) is slidably mounted on the lifting column (2) and located on one side of the output torque sensor (10). The flexible platform (4) includes a lifting plate (41), an X-axis adjustment mechanism (43), and a Y-axis adjustment mechanism (44). The lifting platform (41) is movably mounted on multiple lifting columns (2) to drive the entire flexible platform (4) to rise and fall. The X-axis adjustment mechanism (43) is mounted on the lifting platform (41), the Y-axis adjustment mechanism (44) is mounted on the X-axis adjustment structure, the fixed platform (45) is mounted on the Y-axis adjustment mechanism (44), the torque motor (5) is fixedly mounted on the top of the fixed platform (45) and its output axis passes downward through the fixed platform (45), and the input torque sensor (6) is mounted on the output shaft of the torque motor (5).

2. The multiplier tester according to claim 1, characterized in that: The X-axis adjustment mechanism (43) includes an X-axis slide rail (431), an X-axis platform (432), an X-axis mounting base (433), and an X-axis cylinder (434). The X-axis slide rail (431) is fixedly installed on the lifting platform (41). The X-axis platform (432) is slidably installed on the X-axis slide rail (431). There are two X-axis mounting bases (433), which are fixedly installed at both ends of the X-axis slide rail (431). There are at least two X-axis cylinders (434), which are fixedly installed on one X-axis mounting base (433). The Y-axis adjustment mechanism (44) is installed on the X-axis platform (432). The X-axis cylinder (434) is used to push the X-axis platform (432) to slide along the X-axis slide rail (431).

3. The multiplier tester according to claim 2, characterized in that: The Y-axis adjustment mechanism (44) includes a Y-axis slide rail (441), a Y-axis mounting base (442), and a Y-axis cylinder (443). The Y-axis slide rail (441) is fixedly installed on the X-axis platform (432). There are two Y-axis mounting bases (442), which are respectively fixedly installed at both ends of the Y-axis slide rail (441). There are at least two Y-axis cylinders (443), which are respectively fixedly installed on one of the Y-axis mounting bases (442). The fixed platform (45) is slidably installed on the Y-axis slide rail (441). The Y-axis cylinder (443) is used to push the fixed platform (45) to slide along the Y-axis slide rail (441).

4. The multiplier tester according to claim 1, characterized in that: The top of the lifting column (2) is equipped with a top platform (3), the bottom of the lifting column (2) is fixedly connected to the base (1) through a tension sleeve (21), and the top of the lifting column (2) is fixedly connected to the top platform (3) through a tension sleeve (21); and / or, The lifting platform (41) is mounted on the lifting column (2) in a height-reducible manner via a ball bearing guide sleeve (42).

5. A multiplier tester according to claim 4, characterized in that: The top platform (3) is equipped with a drive structure (7) for driving the lifting platform (41) to rise and fall. The drive structure (7) includes a lifting screw (71), a screw guide sleeve (72), and a synchronous drive component (73). There are two lifting screws (71), both of which are located between the base (1) and the top platform (3). One end of the lifting screw (71) is rotatably connected to the base (1), and the other end of the lifting screw (71) is rotatably connected to the top platform (3). The lifting screw (71) rotates through the lifting platform (41). The screw guide sleeve (72) is fixedly installed on the lifting platform and threadedly engaged with the lifting screw (71). The synchronous drive component (73) is fixedly installed on the top platform (3) to synchronously drive the two screws to rotate.

6. The multiplier tester according to claim 5, characterized in that: The synchronous drive unit (73) includes a drive motor (731), a gearbox (732), a universal coupling (733), and a bevel gear connector (734). The drive motor (731) is fixedly installed on the top platform (3). The gearbox (732) is connected to the output shaft of the drive motor (731). The universal coupling (733) has two shafts and is connected to the two output ports of the gearbox (732) respectively. The input end of the bevel gear connector (734) is connected to the end of the universal coupling (733) away from the gearbox (732). The output end of the bevel gear connector (734) is connected to the top of the lifting screw (71).

7. A multiplier tester according to claim 1, characterized in that: The base (1) is provided with a power component (9) for driving the multiplier fixing platform (8) to rise and fall. The power component (9) includes a lifting seat (91) and a driver (92). A lifting column (2) is slidably sleeved at both ends of the lifting seat (91). The multiplier fixing platform (8) is fixedly installed on the lifting seat (91). The driver (92) is one of a cylinder, a hydraulic cylinder, or a servo motor and is fixedly installed on the base (1). The output end of the driver (92) is fixedly connected to the lifting seat (91).

8. A multiplier tester according to claim 7, characterized in that: The multiplier fixing platform (8) is provided with at least two first fixing posts (81) and at least two second fixing posts (82), wherein the length of the first fixing post (81) is less than the length of the second fixing post (82).

9. A multiplier tester according to claim 1, characterized in that: The input torque sensor (6) is provided with a detachable adapter sleeve (11), and / or the output torque sensor (10) is provided with a detachable adapter sleeve (11).

10. A multiplier tester according to claim 1, characterized in that: A cable drag chain (12) is provided between the base (1) and the lifting platform (41); and / or, the base (1) is provided with a housing (13), and the housing (13) is provided with at least one operable operating door (131).

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