Torque testing device for coupler processing

Abstract

The invention relates to the technical field of coupler processing and testing, in particular to a torque testing device for coupler processing, which comprises a rack, a motor and a speed reducer are mounted at the top of the rack, torque sensors are mounted on output shafts of the motor and the speed reducer, and stepped shafts are mounted on output shafts of the torque sensors. A fixing assembly is arranged on the outer side of the stepped shaft. The invention provides a torque testing device for coupling processing, which has the advantages that the coupling can be quickly mounted through the cooperation of the fixing assembly and the chuck, couplings with different sizes and shapes can be tested, and the mounting process is simplified so as to improve the efficiency and transmission; stable transmission of the double-ring frame is guaranteed through the design of matching of reverse threads, protrusions and grooves and the like; in terms of structural details, the torsion spring enables the expansion plate to reset automatically, the knurling technology enhances friction force, the fixing effect is ensured, and the load can be adjusted according to needs.

Description

Technical Field

[0001] The invention relates to the technical field of coupling processing and testing, in particular to a torque testing device for coupling processing. Background Art

[0002] As we all know, coupling processing requires first selecting materials based on the usage scenario and performance requirements, and then cutting or forging the materials; then using casting, forging and other processes to form, supplemented by turning, milling, drilling, grinding, hobbing and gear shaping and other mechanical processing to ensure dimensional accuracy and surface quality; then, the parts that need to improve hardness and wear resistance are subjected to quenching, tempering, normalizing and other heat treatments to optimize mechanical properties. In order to ensure the quality of the finished coupling, it is usually subjected to tests including but not limited to strength or endurance after processing.

[0003] The existing technology has the following problems: when testing existing couplings, especially torque tests, they usually need to be connected to the shaft and then driven to rotate, and the load is changed to test the torque under different loads. However, it is troublesome to adjust the load during the test. At the same time, when industrially testing a large number of couplings, the process of repeatedly connecting the couplings and the shafts is troublesome. When connecting couplings of different sizes, sometimes the size of the test shafts does not match, resulting in malfunction. Based on the above-mentioned situation, we found that it is difficult for the existing technology of torque testing devices for coupling processing to avoid the above problems at the same time. Therefore, we proposed a torque testing device for coupling processing that can quickly replace the torque detection load on demand, can test couplings of different sizes and shapes, and simplify the installation process to improve efficiency. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a torque testing device for coupling processing, which has the characteristics of being able to quickly replace the torque detection load on demand, and can test couplings of different sizes and shapes and simplify the installation process to improve efficiency.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: A torque testing device for coupling processing, comprising a frame, a motor and a reducer are mounted on the top of the frame, a torque sensor is mounted on the output shafts of the motor and reducer, a stepped shaft is mounted on the output shaft of the torque sensor, and a fixing assembly is provided on the outer side of the stepped shaft; The fixed assembly includes six sets of sliding frames, the inner sides of the sliding frames are movably connected with sliding pins, the outer sides of the sliding pins are rotatably connected with force plates, the outer sides of the force plates are rotatably connected with expansion plates, and the outer sides of the stepped shafts are provided with double ring frames, the inner sides of the double ring frames are rotatably connected with the force plates; A main disk is fixedly connected to the top of the frame, and a chuck is provided on the inner side of the main disk. The main disk is made of two annular metal frames, and a gap groove is provided between the two annular metal frames. A plurality of limit columns are fixedly connected to the outer side of the chuck, and the limit columns pass through the gap groove on the side away from the chuck and are fixedly connected to the load plate. A counterweight ring is provided on the outer side of the load plate. A telescopic cylinder is fixedly connected to the right side of the main disk, and a friction plate is fixedly connected to the right side of the chuck. A stop shell is provided at the telescopic end of the telescopic cylinder, and a stop plate used in conjunction with the friction plate is provided on the left side of the stop shell.

[0006] The above technical solution is adopted, and a frame is set up to support the structure, and the motor and reducer provide power for the test, and the torque of the tested coupling is recorded in real time by a torque sensor. The fixed component is equipped with a chuck to fix the coupling. When in use, the coupling can be directly sleeved on the outside of the fixed component. When the double-ring frame is rotated, the force-bearing plate connected to it will also rotate along the double-ring frame, but at the same time it is restricted by the sliding pin and the sliding frame, and a sliding displacement occurs on the inner side of the sliding frame. The expansion plate on the side away from the sliding frame will also tilt with the rotation of the force-bearing plate. Multiple expansion plates are opened at the same time to fix the coupling from the inside, and the chuck is on the outside of the other side of the coupling. The main body is fixed, and couplings of different sizes and shapes can be fixed. The replacement speed is fast and the test efficiency is high. During normal testing, the motor and reducer drive the tested coupling and chuck to rotate on the inner side of the main plate through the torque sensor and the fixing assembly. At the same time, the chuck rotates along the main plate through the limit column and the load plate to support the structure. The counterweight ring set on the outside of the load plate serves as the main load. The load can be flexibly adjusted by increasing the number or using counterweight rings of different weights. At the same time, the extension of the telescopic cylinder can be driven to make the stop shell contact with the friction plate through the stop plate to achieve braking after the test or to achieve fine-tuning of the load through slight pressure.

[0007] The present invention is further configured as follows: a threaded section is provided on the outer side of the stepped shaft, a transmission sleeve is threadedly connected to the outer side of the threaded section, and the right side of the transmission sleeve is movably connected to the double ring frame.

[0008] The above technical solution is adopted, by setting a threaded segment in conjunction with a transmission sleeve, which is used to realize the rotation of the double ring frame through the transmission sleeve. It is worth mentioning that the thread direction of the threaded segment is opposite to the output direction of the motor and the reducer, which can avoid the transmission sleeve rotating relative to the threaded segment due to inertia during the test rotation, causing the double ring frame to rotate.

[0009] The present invention is further configured as follows: a mating protrusion is provided on the outer side of the transmission sleeve, a displacement sleeve is slidably connected to the outer side of the transmission sleeve, a groove is provided on the inner side of the displacement sleeve for use with the mating protrusion, an auxiliary beam is fixedly connected to the right side of the displacement sleeve, the right side of the auxiliary beam is fixedly connected to the left side of the double-ring frame, a rotating shaft is fixedly connected to the inner side of the double-ring frame, and the outer side of the rotating shaft is rotatably connected to the force-bearing plate.

[0010] By adopting the above technical solution, by setting matching protrusions and matching grooves, the displacement sleeve can be displaced horizontally along the transmission sleeve and the two can rotate synchronously, and the auxiliary beam can make the displacement sleeve rotate synchronously with the double ring frame connected to it when rotating.

[0011] The present invention is further configured as follows: torsion springs are fixedly connected to both sides of the force-bearing plate close to the expansion plate, the torsion spring is fixedly connected to the expansion plate on one side close to the expansion plate, and the surface of the expansion plate is knurled.

[0012] By adopting the above technical solution, by setting a torsion spring, the expansion plate can always be in the initial state, avoiding difficulty in contacting the inner sides of different couplings due to excessive rotation, and the torsion spring accumulates force when the outer side of the expansion plate contacts the coupling and rotates, and resets after stopping contact for subsequent use.

[0013] The present invention is further configured as follows: a hard spring is fixedly connected to the inner side of the blocking shell, a mounting plate is fixedly connected to the left side of the hard spring, and the left side of the mounting plate is bonded to the blocking plate.

[0014] By adopting the above technical solution, a hard spring is provided to give the stopping plate a certain displacement space, so as to stop the structure at a slower speed. By providing a mounting plate, the stopping plate can be easily replaced or maintained during maintenance.

[0015] The present invention is further configured as follows: the outer side of the load sheet is fixedly connected to a limit plate, the inner side of the load sheet is rotatably connected to a roller, and the roller is in contact with the surface of the main disk.

[0016] By adopting the above technical solution, the installation position of the counterweight ring can be easily limited by setting the limit plate, and the provided roller can easily reduce the friction between the load plate and the main plate, so that it can perform circumferential movement relatively smoothly.

[0017] The present invention is further configured as follows: the right side of the limit plate contacts the counterweight ring, a safety clip is provided on the outside of the limit plate, an anti-slip pattern is provided on the inside of the safety clip, and the safety clip sleeve is provided on the outside of the limit plate and the counterweight ring.

[0018] By adopting the above technical solution, by arranging the safety jacket on the outside of the counterweight ring and the limit plate, the counterweight ring can be prevented from loosening when the structure rotates.

[0019] The present invention is further configured as follows: a screw is threadedly connected to the left side of the safety clip, a fastening plate is provided on the right side of the screw, and the right side of the fastening plate is in contact with the limiting plate.

[0020] By adopting the above technical solution, by setting a screw, since the number of counterweight rings can be increased as needed, the total thickness of the counterweight ring and the limit plate may also change. Rotating the screw along the safety clip can make the fastening plate on the right side of the screw always adhere to the surface of the limit plate.

[0021] The present invention is further configured as follows: a fixing pin is provided on the outer side of the load sheet, and a counterweight is slidably connected to the outer side of the fixing pin.

[0022] By adopting the above technical solution, a fixed pin is provided for connecting the counterweight block. When fine-tuning the load is required, the weight of the load can be fine-tuned by the counterweight block. Moreover, since the counterweight block is installed on the outside of the fixed pin, and the fixed pin is provided on the outside of the circumference of the load plate, a heavier counterweight block can be installed to simulate the uneven weight distribution when the coupling is loaded.

[0023] The present invention is further configured as follows: a fastening bolt is threadedly connected to the inner side of the fixing pin, a raised outer edge is provided on the outer side of the fastening bolt, and the raised outer edge is used in conjunction with a counterweight block.

[0024] By adopting the above technical solution, the installation of the counterweight block can be fixed by setting a fastening bolt that is screwed into the inner side of the fixing pin, thereby preventing the structure from loosening or falling.

[0025] Compared with the prior art, the present invention provides a torque testing device for coupling processing, which has the following beneficial effects: The torque testing device for coupling processing supports the structure by setting up a frame, and the motor and reducer provide power for the test. The torque of the tested coupling is recorded in real time by the torque sensor. The fixed component is equipped with a chuck to fix the coupling. When in use, the coupling can be directly sleeved on the outside of the fixed component. When the double-ring frame is rotated, the force-bearing plate connected to it will also rotate along the double-ring frame, but at the same time it is restricted by the sliding pin and the sliding frame, and a sliding displacement occurs on the inner side of the sliding frame. The expansion plate on the side away from the sliding frame will also tilt with the rotation of the force-bearing plate. Multiple expansion plates are opened at the same time to fix the coupling from the inside, and the chuck is on the outside to fix the other side of the coupling. It can be fixed on the outside of the main plate, and can fix couplings of different sizes and shapes. It also has a fast replacement speed and high efficiency during testing. During normal testing, the motor and reducer drive the tested coupling and chuck to rotate on the inside of the main plate through the torque sensor and the fixing assembly. At the same time, the chuck rotates along the main plate through the limit column and the load plate to support the structure. The counterweight ring set on the outside of the load plate serves as the main load. The load can be flexibly adjusted by increasing the number or using counterweight rings of different weights. At the same time, the extension of the telescopic cylinder can be driven to make the stop shell contact the friction plate through the stop plate to achieve braking after the test, or by slight pressure to achieve the effect of fine-tuning the load. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the connection between the main plate of the chuck in the present invention; Figure 3 Schematic diagram of the position of the chuck in the present invention; Figure 4 Schematic diagram of the structure of the blocking shell in the present invention; Figure 5 It is a schematic structural diagram of the safety clip in the present invention; Figure 6 It is a connection diagram of the fixing components in the present invention; Figure 7 It is a structural schematic diagram of the fixing component in the present invention; Figure 8 Schematic diagram of the structure of the load sheet in the present invention; Figure 9 Schematic diagram of the position of the rotating shaft in the present invention.

[0027] In the figure: 1. Frame; 2. Motor and reducer; 3. Torque sensor; 4. Stepped shaft; 5. Fixed assembly; 51. Slide frame; 52. Slide pin; 53. Force plate; 54. Expansion plate; 55. Double ring frame; 6. Main plate; 7. Chuck; 8. Clearance groove; 9. Limit column; 10. Load plate; 11. Counterweight ring; 12. Telescopic cylinder; 13. Friction plate; 14. Stop shell; 15. Stop plate; 16. Threaded section; 17. Transmission sleeve; 18. Displacement sleeve; 19. Auxiliary beam; 20. Torsion spring; 21. Hard spring; 22. Mounting plate; 23. Limit plate; 24. Roller; 25. Safety clip; 26. Screw; 27. Fixing pin; 28. Counterweight block; 29. Fastening bolt; 30. Rotating shaft. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Example 1 See also Figure 1-7 A torque testing device for coupling processing, comprising a frame 1, a motor and a reducer 2 mounted on the top of the frame 1, a torque sensor 3 mounted on the output shaft of the motor and reducer 2, a stepped shaft 4 mounted on the output shaft of the torque sensor 3, and a fixing component 5 disposed on the outer side of the stepped shaft 4; The fixed assembly 5 includes six sets of sliding frames 51. The inner side of the sliding frame 51 is movably connected to the sliding pin 52. The outer side of the sliding pin 52 is rotatably connected to the load-bearing plate 53. The outer side of the load-bearing plate 53 is rotatably connected to the expansion plate 54. The outer side of the stepped shaft 4 is provided with a double ring frame 55. The inner side of the double ring frame 55 is rotatably connected to the load-bearing plate 53. The top of the frame 1 is fixedly connected to a main plate 6, and a chuck 7 is provided on the inner side of the main plate 6; The structure is supported by a frame 1, the motor and reducer 2 provide power for the test, and the torque of the tested coupling is recorded in real time by a torque sensor 3. The fixed component 5 is fixed to the coupling with the chuck 7. When in use, the coupling can be directly sleeved on the outside of the fixed component 5. When the double-ring frame 55 is rotated, the force-bearing plate 53 connected thereto will also rotate along the double-ring frame 55, but at the same time it is restricted by the sliding pin 52 and the sliding frame 51, and a sliding displacement occurs on the inner side of the sliding frame 51. The expansion plate 54 on the side away from the sliding frame 51 will also tilt with the rotation of the force-bearing plate 53. Multiple expansion plates 54 are opened at the same time to fix the coupling from the inside of the coupling, and the chuck 7 fixes the outside of the other side of the coupling from the outside. Couplings of different sizes and shapes can be fixed, and the replacement speed is fast, and the efficiency during testing is high.

[0030] Among them, the outer side of the stepped shaft 4 is provided with a threaded section 16, and the outer side of the threaded section 16 is threadedly connected with a transmission sleeve 17. The right side of the transmission sleeve 17 is movably connected to the double ring frame 55, and the threaded section 16 is provided to cooperate with the transmission sleeve 17 for realizing the rotation of the double ring frame 55 through the transmission sleeve 17. It is worth mentioning that the thread direction of the threaded section 16 is opposite to the output direction of the motor and the reducer 2, which can avoid the transmission sleeve 17 rotating relative to the threaded section 16 due to inertia during the test rotation, causing the double ring frame 55 to rotate. The outer side of the transmission sleeve 17 is provided with a matching protrusion, and the outer side of the transmission sleeve 17 is slidably connected with a displacement sleeve 18. The inner side of the displacement sleeve 18 is provided with a groove used in conjunction with the matching protrusion. The right side of the displacement sleeve 18 is fixedly connected with an auxiliary beam 19, and the right side of the auxiliary beam 19 is fixedly connected to the left side of the double ring frame 55. The inner side of the double ring frame 55 is fixedly connected with a rotating shaft 30, and the outer side of the rotating shaft 30 is rotatably connected to the force plate 53. By setting matching protrusions and matching grooves, The cam 54 is rotated with the cam 55 engaged, and the cam 55 engages with the cam 56 engaged, and the cam 56 engages with the cam 57 engaged, and the cam 57 engages with the cam 56 engaged.

[0031] The working principle of this embodiment is as follows: with the frame 1 as the supporting basis, the motor and reducer 2 provide power, and the torque sensor 3 records the torque data in real time. When fixing the coupling, it is directly sleeved on the outside of the fixed component 5, and the double ring frame 55 is rotated. The force plate 53 connected thereto rotates along the double ring frame 55 and slides in the slide frame 51 under the restriction of the sliding pin 52 and the slide frame 51, driving the expansion plate 54 to tilt and open, and fix it from the inside of the coupling. At the same time, the chuck 7 fixes the other side of the coupling from the outside, which can adapt to different sizes and shapes, and has high replacement efficiency. In terms of transmission, the threaded section 16 on the outside of the stepped shaft 4 is threadedly connected to the transmission sleeve 17, and the thread direction is consistent with the motor and The output direction of the reducer 2 is opposite to that of the double ring frame 55, which is caused by the inertial rotation of the transmission sleeve 17 during the test rotation. The mating protrusion on the outside of the transmission sleeve 17 cooperates with the groove on the inside of the displacement sleeve 18, so that the displacement sleeve 18 can both horizontally displace along the transmission sleeve 17 and rotate synchronously, and then drive the double ring frame 55 to rotate through the auxiliary beam 19. In addition, the torsion spring 20 between the force plate 53 and the expansion plate 54 can keep the expansion plate 54 in its initial state to avoid excessive rotation affecting the contact with the coupling. When the outer side of the expansion plate 54 contacts and rotates with the coupling, the torsion spring 20 accumulates force and resets after disengagement, which is convenient for next use. The knurling process on the surface of the expansion plate 54 also enhances the friction with the coupling.

[0032] Example 2 Based on Example 1, Figure 8 , a torque testing device for coupling processing, wherein a main disk 6 is fixedly connected to the top of the frame 1, a chuck 7 is provided on the inner side of the main disk 6, the main disk 6 is made of two annular metal frames, a gap groove 8 is provided between the two annular metal frames, a plurality of limit columns 9 are fixedly connected to the outer side of the chuck 7, the limit columns 9 pass through the gap groove 8 on the side away from the chuck 7 and are fixedly connected to a load plate 10, a counterweight ring 11 is sleeved on the outer side of the load plate 10, a telescopic cylinder 12 is fixedly connected to the right side of the main disk 6, a friction plate 13 is fixedly connected to the right side of the chuck 7, a stop shell 14 is provided at the telescopic end of the telescopic cylinder 12, and a stop plate 15 used in conjunction with the friction plate 13 is provided on the left side of the stop shell 14; During normal testing, the motor and reducer 2 drive the test coupling and chuck 7 to rotate on the inner side of the main disk 6 through the torque sensor 3 and the fixing assembly 5. At the same time, the chuck 7 rotates along the main disk 6 through the limit column 9 and the load plate 10 to support the structure. The counterweight ring 11 sleeved on the outside of the load plate 10 serves as the main load. The load can be flexibly adjusted by increasing the number or using counterweight rings 11 of different weights. At the same time, the extension of the telescopic cylinder 12 can be driven to make the stop shell 14 contact with the friction plate 13 through the stop plate 15 to achieve braking after the test or to achieve the effect of fine-tuning the load through slight pressure.

[0033] Among them, the inner side of the stopping shell 14 is fixedly connected with a hard spring 21, and the left side of the hard spring 21 is fixedly connected with a mounting plate 22. The left side of the mounting plate 22 is bonded to the stopping plate 15. By setting the hard spring 21, the stopping plate 15 can have a certain displacement space, so as to stop the structure at a slower speed. By setting the mounting plate 22, it is convenient to replace or maintain the stopping plate 15 during maintenance. The outer side of the load plate 10 is fixedly connected to the limit plate 23, and the inner side of the load plate 10 is rotatably connected with a roller 24. The roller 24 is in contact with the surface of the main disk 6. By setting the limit The plate 23 can be used to limit the installation position of the counterweight ring 11. The roller 24 provided can reduce the friction of the load plate 10 on the main plate 6, so that it can move circumferentially relatively smoothly. The right side of the limit plate 23 is in contact with the counterweight ring 11. The outer side of the limit plate 23 is provided with a safety clip 25. The inner side of the safety clip 25 is provided with an anti-slip pattern. The safety clip 25 is sleeved on the outer side of the limit plate 23 and the counterweight ring 11. By setting the safety clip 25 sleeved on the outer side of the counterweight ring 11 and the limit plate 23, the counterweight ring 11 can be prevented from loosening when the structure rotates. The left side of the safety clip 25 A screw rod 26 is threadedly connected, and a fastening piece is provided on the right side of the screw rod 26. The right side of the fastening piece contacts the limit plate 23. By setting the screw rod 26, the number of the counterweight ring 11 can be increased as needed, so the total thickness of the counterweight ring 11 and the limit plate 23 may also change. Rotating the screw 26 along the safety clip 25 can make the fastening piece on the right side of the screw 26 always fit on the surface of the limit plate 23. A fixing pin 27 is provided on the outside of the load sheet 10, and a counterweight block 28 is slidably connected to the outside of the fixing pin 27. The fixing pin 27 is provided for connecting the counterweight block 28. When fine-tuning the load is required The weight of the load can be fine-tuned by using a counterweight 28. Furthermore, since the counterweight 28 is mounted on the outside of the fixing pin 27, which is positioned outside the circumference of the load plate 10, a heavier counterweight 28 can be installed to simulate uneven weight distribution when the coupling is loaded. A fastening bolt 29 is threadedly connected to the inner side of the fixing pin 27. A raised outer edge is provided on the outer side of the fastening bolt 29, which cooperates with the counterweight 28. By screwing the fastening bolt 29 into the inner side of the fixing pin 27, the counterweight 28 can be secured to prevent the structure from loosening or falling.

[0034] The working principle of this embodiment is as follows: basic load adjustment is achieved by sleeved counterweight rings 11 of different weights and quantities on the outside of the load plate 10, and counterweight blocks 28 are installed on the fixed pins 27 on the outer side of the circumference to simulate dynamic unbalanced working conditions. The safety clip 25, screw 26 and fastening bolts 29 are used to fix the counterweight ring 11 and the counterweight block 28. The limit plate 23 and roller 24 improve the load positioning accuracy and rotation flexibility. When the telescopic cylinder 12 drives the stop plate 15 to contact the friction plate, the hard spring 21 provides buffering and supports load fine-tuning.

[0035] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A torque testing device for coupling processing, comprising a frame (1), characterized in that: A motor and a reducer (2) are mounted on the top of the frame (1); a torque sensor (3) is mounted on the output shafts of the motor and reducer (2); a stepped shaft (4) is mounted on the output shaft of the torque sensor (3); and a fixing assembly (5) is provided on the outer side of the stepped shaft (4); The fixing assembly (5) includes six groups of sliding frames (51), the inner side of the sliding frame (51) is movably connected to a sliding pin (52), the outer side of the sliding pin (52) is rotatably connected to a force plate (53), the outer side of the force plate (53) is rotatably connected to an expansion plate (54), and the outer side of the stepped shaft (4) is provided with a double ring frame (55), and the inner side of the double ring frame (55) is rotatably connected to the force plate (53); The top of the frame (1) is fixedly connected to a main disk (6), and a chuck (7) is provided on the inner side of the main disk (6). The main disk (6) is made of two annular metal frames, and a gap groove (8) is provided between the two annular metal frames. The outer side of the chuck (7) is fixedly connected to a plurality of limit columns (9), and the side of the limit columns (9) away from the chuck (7) passes through the gap groove (8) and is fixedly connected to a load plate (10). The outer side of the load plate (10) is provided with a counterweight ring (11). The right side of the main disk (6) is fixedly connected to a telescopic cylinder (12), and the right side of the chuck (7) is fixedly connected to a friction plate (13). The telescopic end of the telescopic cylinder (12) is provided with a stop shell (14), and the left side of the stop shell (14) is provided with a stop plate (15) used in conjunction with the friction plate (13).

2. A torque testing device for coupling processing according to claim 1, characterized in that: A threaded section (16) is provided on the outer side of the stepped shaft (4), and a transmission sleeve (17) is threadedly connected to the outer side of the threaded section (16). The right side of the transmission sleeve (17) is movably connected to the double ring frame (55).

3. The torque testing device for coupling processing according to claim 2, characterized in that: The outer side of the transmission sleeve (17) is provided with a matching protrusion, the outer side of the transmission sleeve (17) is slidably connected to a displacement sleeve (18), the inner side of the displacement sleeve (18) is provided with a groove used in conjunction with the matching protrusion, the right side of the displacement sleeve (18) is fixedly connected to an auxiliary beam (19), the right side of the auxiliary beam (19) is fixedly connected to the left side of the double ring frame (55), the inner side of the double ring frame (55) is fixedly connected to a rotating shaft (30), and the outer side of the rotating shaft (30) is rotatably connected to the force plate (53).

4. The torque testing device for coupling processing according to claim 1, characterized in that: Both sides of the force-bearing plate (53) close to the expansion plate (54) are fixedly connected to torsion springs (20), and the side of the torsion spring (20) close to the expansion plate (54) is fixedly connected to the expansion plate (54).

5. The torque testing device for coupling processing according to claim 1, characterized in that: A hard spring (21) is fixedly connected to the inner side of the blocking shell (14), a mounting plate (22) is fixedly connected to the left side of the hard spring (21), and the left side of the mounting plate (22) is bonded to the blocking plate (15).

6. The torque testing device for coupling processing according to claim 1, characterized in that: The outer side of the load plate (10) is fixedly connected to a limit plate (23), and the inner side of the load plate (10) is rotatably connected to a roller (24), and the roller (24) is in contact with the surface of the main disk (6).

7. The torque testing device for coupling processing according to claim 6, characterized in that: The right side of the limit plate (23) contacts the counterweight ring (11), and a safety clip (25) is provided on the outer side of the limit plate (23). The inner side of the safety clip (25) is provided with anti-slip grooves, and the safety clip (25) is sleeved on the outer sides of the limit plate (23) and the counterweight ring (11).

8. The torque testing device for coupling processing according to claim 7, characterized in that: The left side of the safety clip (25) is threadedly connected to a screw rod (26), and the right side of the screw rod (26) is provided with a fastening plate, and the right side of the fastening plate is in contact with the limiting plate (23).

9. The torque testing device for coupling processing according to claim 1, characterized in that: A fixing pin (27) is provided on the outer side of the load sheet (10), and a counterweight (28) is slidably connected to the outer side of the fixing pin (27).

10. The torque testing device for coupling processing according to claim 9, characterized in that: The inner side of the fixing pin (27) is threadedly connected to a fastening bolt (29), and the outer side of the fastening bolt (29) is provided with a raised outer edge, which is used in conjunction with the counterweight (28).

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