Friction torque detection device for thrust bearing

Abstract

The utility model relates to the technical field of bearing torque detection, in particular to a friction torque detection device for a thrust bearing, which comprises a support table mounted on the ground and used for integrally supporting the device, the top surface of the support table is fixedly connected with a U-shaped frame, and the top surface of the support table is rotatably connected with a tray. Four sliding holes which are annularly distributed at equal angles are formed in the top face of the supporting table in a penetrating mode, and the clamping mechanism is arranged between the top face and the bottom face of the supporting table. According to the utility model, the pressure sensors are fixed in the clamping plates at the corresponding positions in a penetrating manner, and the springs can be compressed through the mutual approaching of the four L-shaped plates, so that the clamping force of the four clamping plates to the bearing to be tested can be prevented from being limited by the pressure sensors, and the clamping force of the bearing to be tested can be accurately measured through the compression degree of the springs. The abrasion condition of the bearing to be measured under different clamping forces can be realized, so that the friction torque of the bearing to be measured under different clamping forces can be measured.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing torque detection, in particular to a friction torque detection device for a thrust bearing. Background Art

[0002] Thrust bearings, also known as thrust bearings, are specifically designed to withstand axial forces. Their primary function is to manage axial loads while ensuring efficient and smooth operation in a variety of applications. Thrust bearings are a type of bearing that typically consists of an inner ring, an outer ring, and rolling elements. During bearing operation, the friction torque between these three components is a critical parameter for evaluating bearing performance, directly impacting its operational performance. Therefore, it is necessary to measure the friction torque during bearing operation.

[0003] Chinese patent publication number CN221280508U discloses a torque measuring mechanism for bearings. The mechanism comprises a friction adjustment mechanism arranged on an operating table, wherein a motor is used to drive a rotating disk to rotate, causing the slide bars to move toward each other, thereby causing the friction block on the clamping block to contact the outer ring of the bearing body to be measured. Furthermore, the greater the rotation angle, the greater the friction force on the bearing body to be measured, thereby measuring the wear of the bearing body to be measured under different friction torques.

[0004] Although the above patent can detect the friction torque of the bearing, the pressure sensor is located inside the friction block. Since the pressure sensor is a rigid structure, the clamping force on the bearing will be limited by the pressure sensor, which makes it difficult for the above solution to detect the wear of the bearing body under different clamping forces. Utility Model Content

[0005] The purpose of the present utility model is to provide a friction torque detection device for a thrust bearing, so as to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A friction torque detection device for a thrust bearing, comprising:

[0008] A support platform is installed on the ground and is used to support the entire device. The top surface of the support platform is fixedly connected to a profile frame, the top surface of the support platform is rotatably connected to a tray, and the top surface of the support platform is penetrated by four sliding holes distributed at equal angles in a ring shape;

[0009] A clamping mechanism is provided between the top and bottom surfaces of the support platform, and is used to fix the bearing and detect the friction torque of the bearing. The clamping mechanism includes an L-shaped plate that slides inside the sliding hole at the corresponding position, one end of the L-shaped plate is fixedly connected to an arc-shaped plate, the inner wall of the arc-shaped plate is fixedly connected to two symmetrical springs, a clamping plate is fixedly connected between the two springs at opposite positions, and a pressure sensor is fixedly fixed to the outer wall of the clamping plate;

[0010] The rotating mechanism is arranged inside the mold frame and is used to drive the rotation of the inner ring of the bearing.

[0011] Furthermore, the bottom surface of the support platform is fixedly connected to a support frame, the bottom surface of the support platform and the interior of the support frame are fixedly connected to a support shell, and a screw that penetrates and screws with an L-shaped plate at a corresponding position is rotatably connected between the inner side surface of the support frame and the outer side surface of the support shell.

[0012] Furthermore, one end of the screw rod passes through the inner side surface of the support shell and is fixedly connected to bevel gear 1, the bottom surface of the support shell is fixedly connected to a reduction motor, and the output end of the reduction motor passes through the inner bottom surface of the support shell and is fixedly connected to bevel gear 2 that meshes with four bevel gears 1 for transmission.

[0013] Furthermore, both ends of the outer wall of the clamping plate are fixedly connected with limiting rods which slide through the arc-shaped plates at corresponding positions, and the cross section of the limiting rods is a T-shaped structure.

[0014] Furthermore, an anti-slip pad is fixedly connected to the inner wall of the clamping plate.

[0015] Furthermore, the rotating mechanism includes:

[0016] The movable plate is located inside the mold frame and slides;

[0017] A driving motor is fixedly connected to the top surface of the moving plate, and an output end of the driving motor passes through the bottom surface of the moving plate and is fixedly connected to the cylindrical block;

[0018] The two cylinders are fixedly connected between the top surface of the mold frame and the two ends of the top surface of the movable plate.

[0019] Furthermore, the cylindrical block is made of rubber.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] By passing the pressure sensor through the clamping plate fixed at the corresponding position and compressing the spring by bringing the four L-shaped plates closer to each other, the clamping force of the four clamping plates on the bearing to be tested can be prevented from being restricted by the pressure sensor. Moreover, the wear condition of the bearing to be tested under different clamping forces can be realized by the degree of compression of the spring, thereby measuring the friction torque of the bearing to be tested under different clamping forces. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the support platform in the utility model;

[0024] Figure 3 This is a schematic diagram of the bottom surface of the support platform in the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the clamping mechanism in the utility model;

[0026] Figure 5 It is a schematic diagram of the rotating mechanism structure in the utility model.

[0027] In the figure: 1. Support platform; 11. Profile frame; 12. Tray; 13. Slide hole; 14. Support frame; 15. Support shell; 2. Clamping mechanism; 21. L-shaped plate; 22. Arc plate; 23. Spring; 24. Clamping plate; 25. Pressure sensor; 26. Screw; 27. Bevel gear 1; 28. Reducer motor; 281. Bevel gear 2; 29. ​​Limit rod; 3. Rotating mechanism; 31. Moving plate; 32. Driving motor; 33. Cylindrical block; 34. Cylinder. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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] See also Figure 1-5, In an embodiment of the utility model, a friction torque detection device for a thrust bearing includes a support platform 1, a clamping mechanism 2, and a rotating mechanism 3. The support platform 1 is installed on the ground and is used to support the entire device. The top surface of the support platform 1 is fixedly connected to a profile frame 11, and the top surface of the support platform 1 is rotatably connected to a tray 12. The top surface of the support platform 1 is penetrated by four sliding holes 13 distributed in an annular shape at equal angles. The clamping mechanism 2 is arranged between the top and bottom surfaces of the support platform 1, and is used to fix the bearing and to detect the friction torque of the bearing. The clamping mechanism 2 includes an L-shaped plate 21 sliding inside the sliding hole 13 at a corresponding position, one end of the L-shaped plate 21 is fixedly connected to an arc plate 22, and the inner wall of the arc plate 22 is fixedly connected to two symmetrical springs 23, and a clamping plate 24 is fixedly connected between the two springs 23 at relative positions. A pressure sensor 25 is fixed on the outer wall of the clamping plate 24, and the rotating mechanism 3 is arranged inside the profile frame 11 to drive the rotation of the inner ring of the bearing.

[0030] Specifically, first place the bearing to be tested on the tray 12, then move the four L-shaped plates 21 toward the center so that the four clamping plates 24 clamp the outer ring of the bearing to be tested and fix it. The pressure value between the bearing and the four clamping plates 24 can be measured by the pressure sensor 25 (the pressure sensor 25 is a prior art, so the specific connection method and usage method are not described in detail). Then, the rotating mechanism 3 is moved downward to drive the bearing to be tested to rotate, and the ball wear inside the bearing to be tested is observed. Then, the four L-shaped plates 21 are continued to move closer to the center, which can compress the spring 23, thereby The clamping force between the bearing to be tested and the four clamping plates 24 can be increased, and then the wear of the balls in the bearing to be tested can be observed again. The device penetrates the pressure sensor 25 and fixes it in the clamping plates 24 at the corresponding positions, and the four L-shaped plates 21 are brought close to each other to compress the spring 23, thereby preventing the clamping force of the four clamping plates 24 on the bearing to be tested from being restricted by the pressure sensor 25. Moreover, the degree of compression of the spring 23 can be used to realize the wear of the bearing to be tested under different clamping forces, thereby measuring the friction torque of the bearing to be tested under different clamping forces.

[0031] Example 1

[0032] like Figure 4As shown, in this embodiment, the bottom surface of the support platform 1 is fixedly connected to the support frame 14, and the bottom surface of the support platform 1 and the interior of the support frame 14 are fixedly connected to the support shell 15, and the inner side surface of the support frame 14 and the outer side surface of the support shell 15 are rotatably connected with a screw 26 that penetrates and screws with the L-shaped plate 21 at the corresponding position, one end of the screw 26 penetrates the inner side surface of the support shell 15 and is fixedly connected to a bevel gear 1 27, and the bottom surface of the support shell 15 is fixedly connected to a reduction motor 28, and the output end of the reduction motor 28 penetrates the inner bottom surface of the support shell 15 and is fixedly connected to a bevel gear 2 281 that meshes with the four bevel gears 1 27 for transmission, and both ends of the outer wall of the splint 24 are fixedly connected with a limit rod 29 that slides through the arc plate 22 at the corresponding position, and the cross section of the limit rod 29 is a T-shaped structure, and the inner wall of the splint 24 is fixedly connected with an anti-slip pad.

[0033] In this embodiment, the bevel gear 2 281 can simultaneously drive the four bevel gears 1 27 to rotate by driving the reduction motor 28. The rotating bevel gear 1 27 can rotate the screw 26, thereby moving the L-shaped plate 21 at the corresponding position. When the four L-shaped plates 21 move toward the middle, they can clamp and fix the bearing to be tested, and then different clamping forces can be applied to the bearing to be tested under the action of the spring 23 (the greater the compression of the spring 23, the greater the reverse force applied by the clamping plate 24 to the bearing to be tested).

[0034] Example 2

[0035] like Figure 5 As shown, in this embodiment, the rotating mechanism 3 includes a moving plate 31, a driving motor 32, and two cylinders 34. The moving plate 31 is located inside the mold frame 11 and slides. The driving motor 32 is fixedly connected to the top surface of the moving plate 31. The output end of the driving motor 32 passes through the bottom surface of the moving plate 31 and is fixedly connected to a cylindrical block 33. The two cylinders 34 are respectively fixedly connected between the top surface inside the mold frame 11 and the two ends of the top surface of the moving plate 31. The cylindrical block 33 is made of rubber.

[0036] In this embodiment, the two cylinders 34 drive the movable plate 31 to drive the driving motor 32 and the cylindrical block 33 to move downward until the cylindrical block 33 is inserted into the inner ring of the bearing to be tested. Then, the driving motor 32 is started to enable the cylindrical block 33 to drive the bearing to be tested to rotate so as to measure the friction torque of the bearing.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0038] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A friction torque detection device for a thrust bearing, characterized in that: include: A support platform (1) is installed on the ground and is used to support the entire device. The top surface of the support platform (1) is fixedly connected to a profile frame (11). The top surface of the support platform (1) is rotatably connected to a tray (12). Four sliding holes (13) distributed in an annular shape and at equal angles are formed through the top surface of the support platform (1). A clamping mechanism (2) is arranged between the top surface and the bottom surface of the support platform (1), and is used to fix the bearing and to detect the friction torque of the bearing. The clamping mechanism (2) includes an L-shaped plate (21) that slides inside the sliding hole (13) located at a corresponding position, one end of the L-shaped plate (21) is fixedly connected to an arc-shaped plate (22), the inner wall of the arc-shaped plate (22) is fixedly connected to two symmetrical springs (23), a clamping plate (24) is fixedly connected between the two springs (23) at opposite positions, and a pressure sensor (25) is fixedly connected to the outer wall of the clamping plate (24); The rotating mechanism (3) is arranged inside the mold frame (11) and is used to drive the rotation of the inner ring of the bearing.

2. The friction torque detection device for a thrust bearing according to claim 1, characterized in that: The bottom surface of the support platform (1) is fixedly connected to a support frame (14); the bottom surface of the support platform (1) and located inside the support frame (14) are fixedly connected to a support shell (15); a screw (26) that penetrates and screws with an L-shaped plate (21) at a corresponding position is rotatably connected between the inner side surface of the support frame (14) and the outer side surface of the support shell (15).

3. The friction torque detection device for a thrust bearing according to claim 2, characterized in that: One end of the screw rod (26) passes through the inner side surface of the support shell (15) and is fixedly connected to a bevel gear 1 (27); the bottom surface of the support shell (15) is fixedly connected to a reduction motor (28); the output end of the reduction motor (28) passes through the inner bottom surface of the support shell (15) and is fixedly connected to a bevel gear 2 (281) that meshes with the four bevel gears 1 (27) for transmission.

4. The friction torque detection device for a thrust bearing according to claim 3, characterized in that: Both ends of the outer wall of the clamping plate (24) are fixedly connected with a limiting rod (29) that slides through the arc-shaped plate (22) at the corresponding position, and the cross section of the limiting rod (29) is a T-shaped structure.

5. The friction torque detection device for a thrust bearing according to claim 4, characterized in that: The inner wall of the clamping plate (24) is fixedly connected with an anti-slip pad.

6. The friction torque detection device for a thrust bearing according to claim 1, characterized in that: The rotating mechanism (3) comprises: A movable plate (31) is located inside the mold frame (11) and slides; A driving motor (32) is fixedly connected to the top surface of the moving plate (31), and an output end of the driving motor (32) passes through the bottom surface of the moving plate (31) and is fixedly connected to a cylindrical block (33); The two cylinders (34) are respectively fixedly connected between the inner top surface of the mold frame (11) and the two ends of the top surface of the movable plate (31).

7. The friction torque detection device for a thrust bearing according to claim 6, characterized in that: The cylindrical block (33) is made of rubber.

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