A fixing mechanism for testing the torque of a hydraulic coupling

Abstract

This utility model relates to the field of fixing mechanisms, specifically to a fixing mechanism for testing the torque of a hydraulic coupling, including a mounting base for mounting the fixing mechanism. This utility model's fixing mechanism for testing the torque of a hydraulic coupling utilizes a servo motor, a first spur gear, a turntable, a first moving rod, an anti-slip outer clamping block, a threaded rod, a second spur gear, a moving block, a second moving rod, and an anti-slip inner clamping block. The servo motor drives the first spur gear to rotate, and the first spur gear meshes with the outer teeth of the turntable. As the turntable rotates, it pushes the first moving rod inside the moving groove to move within a first guide groove. During the movement of the first moving rod, it drives the anti-slip outer clamping block to clamp the hydraulic coupling. Simultaneously, the inner teeth of the turntable mesh with the second spur gear, driving the threaded rod to rotate. This causes the outer moving block, the second moving rod, and the anti-slip inner clamping block to move within the second guide groove, thus fixing the inner diameter of the hydraulic coupling.

Description

Technical Field

[0001] This utility model relates to the field of fixing mechanisms, specifically to a fixing mechanism for testing the torque of a hydraulic coupling. Background Technology

[0002] The fixing mechanism for torque testing of hydraulic couplings is a special device used to stably fix the hydraulic coupling and its connecting shaft during torque testing. Its core function is to ensure a reliable connection between the coupling and the testing equipment (such as torque sensor and drive motor) during testing, while also withstanding the torque, axial force and vibration generated during the test.

[0003] Traditional fixed structures for testing the torque of hydraulic couplings simply clamp the hydraulic coupling externally. However, the external clamping only constrains the outer circle of the coupling. When the test torque is large, the inner hole of the coupling may experience a slight displacement due to inertia or elastic deformation of the material, resulting in the axis being misaligned with the main shaft of the testing equipment (error > 0.1 mm), causing vibration and fluctuations in the test data.

[0004] Therefore, it is necessary to invent a fixing mechanism for testing the torque of a hydraulic coupling to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a fixing mechanism for testing the torque of a hydraulic coupling. By turning on the servo motor switch, the first spur gear is driven to rotate. The first spur gear meshes with the external teeth of the turntable, causing the turntable to rotate while simultaneously pushing the first moving rod inside the moving groove to move within the first guide groove outside the fixed shell. During the movement of the first moving rod, the anti-slip external clamping block clamps the outer wall of the hydraulic coupling. At the same time, the turntable rotates, and the internal teeth mesh with the second spur gear, driving the threaded rod to rotate. This causes the external moving block, the second moving rod, and the anti-slip internal clamping block to move within the second guide groove, thereby clamping and fixing the inner diameter of the hydraulic coupling. This solves the problem of the traditional fixing structure for testing the torque of hydraulic couplings mentioned in the background art, which simply clamps the external part of the hydraulic coupling. The external clamping only constrains the outer circle of the coupling. When the test torque is large, the inner hole of the coupling may experience a slight offset due to inertia or elastic deformation of the material, resulting in the axis being misaligned with the main shaft of the testing equipment (error > 0.1 mm), causing vibration and fluctuations in test data.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fixing mechanism for testing the torque of a hydraulic coupling, including a mounting base for mounting the fixing mechanism for testing the torque of a hydraulic coupling; A fixed housing is fixedly installed on the outside of the mounting base. The surface of the fixed housing is provided with a first guide groove and a second guide groove. A servo motor is fixedly installed on the rear side of the mounting base. A first spur gear is fixed to the output end of the servo motor. A turntable is provided inside the fixed housing. External teeth are fixedly connected to the outside of the turntable. A moving groove is provided on the inner surface of the turntable. A first moving rod is slidably connected inside the moving groove. An anti-slip external clamping block is fixedly connected inside the first moving rod. The internal teeth are all fixedly connected inside the turntable. The fixed blocks are all fixedly connected inside the fixed shell. A threaded rod moves through the inside of the fixed block. A second spur gear is fixedly connected to the upper end of the threaded rod. A moving block is threadedly connected to the outside of the threaded rod. A second moving rod is fixedly connected to the outside of the moving block. An anti-slip inner clamping block is fixedly connected to the outside of the second moving rod.

[0007] Preferably, the first spur gear meshes with the external teeth of the turntable, and the turntable is rotatably connected to the interior of the fixed housing.

[0008] Preferably, the first moving rod is located inside the first guide groove and the moving groove, and the second moving rod is located inside the second guide groove.

[0009] Preferably, the inner side of the anti-slip outer clamping block matches the outer side of the hydraulic coupling, and the outer side of the anti-slip outer clamping block matches the inner diameter of the hydraulic coupling.

[0010] Preferably, the second spur gear at the upper end of the threaded rod meshes with the internal gear on the inner side of the turntable.

[0011] Preferably, the first moving rod and the second moving rod move in opposite directions, and the first moving rod and the second moving rod slide within the first guide groove and the second guide groove respectively.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows: This invention, through the arrangement of a servo motor, a first spur gear, a turntable, a first moving rod, an anti-slip outer clamping block, a threaded rod, a second spur gear, a moving block, a second moving rod, and an anti-slip inner clamping block, can simultaneously fix the inner and outer diameters, thereby enhancing the overall stability of the hydraulic coupling. By turning on the servo motor switch, the first spur gear is driven to rotate. The first spur gear meshes with the external teeth of the turntable, causing the turntable to rotate while simultaneously pushing the first moving rod inside the moving groove to move within the first guide groove outside the fixed shell. During the movement of the first moving rod, the anti-slip outer clamping block clamps the outer wall of the hydraulic coupling. Simultaneously, the turntable, through the meshing of its internal teeth with the second spur gear, drives the threaded rod to rotate, causing the external moving block, the second moving rod, and the anti-slip inner clamping block to move within the second guide groove, thereby clamping and fixing the inner diameter of the hydraulic coupling. Attached Figure Description

[0013] 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.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the fixed shell of this utility model; Figure 3 This is a schematic diagram of the turntable structure of this utility model; Figure 4 This is a schematic diagram of the structure of the first guide groove and the second guide groove of this utility model; Figure 5 This is a schematic diagram of the anti-slip outer clamping block and the anti-slip inner clamping block of this utility model; Figure 6 This is a schematic diagram of the turntable and internal gear structure of this utility model; Figure 7 This is a schematic diagram of the threaded rod structure of this utility model.

[0015] Explanation of reference numerals in the attached figures: 1. Mounting base; 2. Fixing shell; 3. First guide groove; 4. Second guide groove; 5. Servo motor; 6. First spur gear; 7. Turntable; 8. External gear; 9. Moving groove; 10. First moving rod; 11. Anti-slip external clamping block; 12. Internal gear; 13. Fixing block; 14. Threaded rod; 15. Second spur gear; 16. Moving block; 17. Second moving rod; 18. Anti-slip internal clamping block. Detailed Implementation

[0016] 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.

[0017] This utility model provides, for example Figure 1-7 The shown is a fixing mechanism for testing the torque of a hydraulic coupling, including a mounting base 1 for mounting the fixing mechanism for testing the torque of a hydraulic coupling; A fixed shell 2 is fixedly installed on the outside of the mounting base 1. The surface of the fixed shell 2 is provided with a first guide groove 3 and a second guide groove 4. A servo motor 5 is fixedly installed on the rear side of the mounting base 1. A first spur gear 6 is fixedly installed at the output end of the servo motor 5. A turntable 7 is provided inside the fixed shell 2. External teeth 8 are fixedly connected to the outside of the turntable 7. A moving groove 9 is provided on the inner surface of the turntable 7. A first moving rod 10 is slidably connected inside the moving groove 9. An anti-slip external clamping block 11 is fixedly connected inside the first moving rod 10. The internal gears 12 are all fixedly connected inside the turntable 7. Fixed blocks 13 are fixedly connected inside the fixed housing 2. A threaded rod 14 moves through the inside of each fixed block 13. A second spur gear 15 is fixedly connected to the upper end of the threaded rod 14. A moving block 16 is threadedly connected to the outside of the threaded rod 14. A second moving rod 17 is fixedly connected to the outside of the moving block 16. An anti-slip inner clamping block 18 is fixedly connected to the outside of the second moving rod 17. By turning on the servo motor 5, the first spur gear 6 is driven to rotate. The first spur gear 6 interacts with the outside of the turntable 7... The external gear 8 engages in transmission, causing the turntable 7 to rotate while simultaneously pushing the first moving rod 10 inside the moving groove 9 to move within the first guide groove 3 outside the fixed shell 2. During the movement of the first moving rod 10, the anti-slip external clamping block 11 clamps the outer wall of the hydraulic coupling. Meanwhile, as the turntable 7 rotates, it utilizes the internal gear 12 to engage with the second spur gear 15, driving the threaded rod 14 to rotate. This causes the external moving block 16, the second moving rod 17, and the anti-slip internal clamping block 18 to move within the second guide groove 4, thereby clamping and fixing the inner diameter of the hydraulic coupling.

[0018] like Figure 2 and Figure 3 As shown, the first spur gear 6 meshes with the external teeth 8 of the turntable 7. The turntable 7 is rotatably connected to the inside of the fixed housing 2. By turning on the servo motor 5 switch, the first spur gear 6 is driven to rotate. The rotation of the first spur gear 6 meshes with the external teeth 8 of the turntable 7, causing the turntable 7 to rotate inside the fixed housing 2.

[0019] like Figure 3 , Figure 4 and Figure 5 As shown, the first moving rod 10 is located inside the first guide groove 3 and the moving groove 9, and the second moving rod 17 is located inside the second guide groove 4. When the turntable 7 rotates, the first moving rod 10 is pushed up and down in the first guide groove 3 inside the fixed shell 2 by the moving groove 9 inside, thereby clamping and fixing the hydraulic coupling. The second moving rod 17 is also limited and slids inside the fixed shell 2 through the second guide groove 4.

[0020] like Figure 1 and Figure 5As shown, the inner side of the anti-slip outer clamp 11 matches the outer side of the hydraulic coupling, and the outer side of the anti-slip outer clamp 11 matches the inner diameter of the hydraulic coupling. The anti-slip outer clamp 11 can clamp the outer side of the hydraulic coupling, and the size of the anti-slip outer clamp 11 can fit tightly against the inner diameter of the hydraulic coupling.

[0021] like Figure 6 and Figure 7 As shown, the second spur gear 15 at the upper end of the threaded rod 14 meshes with the internal gear 12 on the inner side of the turntable 7. When the turntable 7 rotates, it drives the internal gear 12 to mesh with multiple second spur gears 15, causing the second spur gears 15 to drive the threaded rod 14 to rotate, which in turn causes the moving block 16 outside the threaded rod 14 to drive the second moving rod 17 and the anti-slip inner clamping block 18 to move.

[0022] like Figure 1 , Figure 4 and Figure 5 As shown, the first moving rod 10 and the second moving rod 17 move in opposite directions. The first moving rod 10 and the second moving rod 17 slide within the first guide groove 3 and the second guide groove 4. When the turntable 7 rotates, it pushes the first moving rod 10 and the anti-slip outer clamping block 11 to move inward. During the rotation of the turntable 7, it simultaneously drives the internal second spur gear 15 and threaded rod 14 to rotate, causing the moving block 16 outside the threaded rod 14, the second moving rod 17, and the anti-slip inner clamping block 18 to move outward. This allows the anti-slip outer clamping block 11 to be fixed outside the hydraulic coupling, while the anti-slip inner clamping block 18 is supported and fixed inside the hydraulic coupling.

[0023] The working principle of this utility model is as follows: First, connect the external power supply. Then, place one end of the hydraulic coupling between the anti-slip outer clamping block 11 and the anti-slip inner clamping block 18. Next, turn on the servo motor 5 switch to drive the first spur gear 6 to rotate. The first spur gear 6 meshes with the external gear 8 on the outside of the turntable 7, causing the turntable 7 to rotate. During the rotation of the turntable 7, the internal moving groove 9 pushes the first moving rod 10 and the anti-slip outer clamping block 11 to move in the first guide groove 3 inside the fixed shell 2, thereby clamping and fixing the hydraulic coupling close to the outside. At the same time, the turntable 7... When rotated, the internal internal gear 12 engages with the second spur gear 15 at the upper end of the multiple sets of threaded rods 14, causing the second spur gear 15 to drive the threaded rods 14 to rotate. When the threaded rods 14 rotate, they drive the external moving block 16 and the second moving rod 17 to move within the second guide groove 4, causing the outer sides of the three sets of anti-slip inner clamping blocks 18 to move and support and fix the inner diameter of the hydraulic coupling. Through internal and external clamping and fixing, the stability of the hydraulic coupling during the testing process is improved. In this way, the use of the fixing mechanism for torque testing of the hydraulic coupling is completed.

[0024] The above 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 fixing mechanism for testing the torque of a hydraulic coupling, characterized in that: Includes a mounting base (1) for mounting a fixing mechanism for testing the torque of a hydraulic coupling; A fixed shell (2) is fixedly installed on the outside of the mounting base (1). The surface of the fixed shell (2) is provided with a first guide groove (3) and a second guide groove (4). A servo motor (5) is fixedly installed on the rear side of the mounting base (1). A first spur gear (6) is fixed at the output end of the servo motor (5). A turntable (7) is provided inside the fixed shell (2). External teeth (8) are fixedly connected to the outside of the turntable (7). A moving groove (9) is provided on the inner surface of the turntable (7). A first moving rod (10) is slidably connected inside the moving groove (9). An anti-slip external clamping block (11) is fixedly connected inside the first moving rod (10). The internal gears (12) are all fixedly connected inside the turntable (7). The fixed housing (2) is fixedly connected to the inside of the fixed block (13). The fixed block (13) has a threaded rod (14) moving through it. The upper end of the threaded rod (14) is fixedly connected to the second spur gear (15). The threaded rod (14) is threadedly connected to the outside of the threaded rod (14). The outside of the moving block (16) is fixedly connected to the second moving rod (17). The outside of the second moving rod (17) is fixedly connected to the anti-slip inner clamping block (18).

2. The fixing mechanism for testing the torque of a hydraulic coupling according to claim 1, characterized in that: The first spur gear (6) meshes with the external teeth (8) of the turntable (7), and the turntable (7) is rotatably connected to the inside of the fixed shell (2).

3. The fixing mechanism for testing the torque of a hydraulic coupling according to claim 1, characterized in that: The first moving rod (10) is located inside the first guide groove (3) and the moving groove (9), and the second moving rod (17) is located inside the second guide groove (4).

4. The fixing mechanism for testing the torque of a hydraulic coupling according to claim 1, characterized in that: The inner side of the anti-slip outer clamp (11) matches the outer side of the hydraulic coupling, and the outer side of the anti-slip outer clamp (11) matches the inner diameter of the hydraulic coupling.

5. A fixing mechanism for testing the torque of a hydraulic coupling according to claim 1, characterized in that: The second spur gear (15) at the upper end of the threaded rod (14) meshes with the internal gear (12) on the inner side of the turntable (7).

6. The fixing mechanism for testing the torque of a hydraulic coupling according to claim 1, characterized in that: The first moving rod (10) moves in opposite directions to the second moving rod (17), and the first moving rod (10) and the second moving rod (17) slide within the first guide groove (3) and the second guide groove (4).

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