A bearing liner friction performance detection test bench

Abstract

This utility model relates to the technical field of bearing liner testing benches, and more particularly to a bearing liner friction performance testing bench, comprising a placement platform, a mounting frame fixedly mounted on the placement platform, an electric telescopic rod fixedly mounted on the mounting frame, a rotary motor fixedly mounted at the bottom end of the electric telescopic rod, a rotating disk fixedly mounted at the output end of the rotary motor, a placement groove formed in the rotating disk, and a friction roller for rubbing the bearing liner placed in the placement groove. This utility model uses the rotation of a bidirectional lead screw to cause one end of each of two pairs of connecting rods to pull two second movable blocks to move towards each other within sliding holes, adjusting the distance between the four guide rods to facilitate the positioning and clamping of bearing liners of different sizes. In conjunction with the extension and retraction of the electric push rod, the limiting rod releases the limiting rod from the friction roller, facilitating the replacement of friction rollers of different sizes, allowing the friction roller to test the friction performance of bearing liners of different sizes.

Description

Technical Field

[0001] This utility model relates to the technical field of bearing liner testing benches, and in particular to a bearing liner friction performance testing bench. Background Technology

[0002] The bearing liner friction performance testing bench is an experimental device specifically designed to evaluate the tribological properties of bearing liners. It is mainly used to measure key parameters such as friction coefficient, wear rate, temperature rise, and load-bearing capacity to verify the performance of materials under actual working conditions.

[0003] When bearing gaskets are in use, they are usually tested using a friction testing machine to ensure that their friction performance is within acceptable limits. However, most existing friction testing machines can only test the friction performance of bearing gaskets of fixed sizes and cannot test bearing gaskets installed on bearings of different sizes, which limits their application. Utility Model Content

[0004] The purpose of this invention is to solve the problem in the prior art that it is impossible to test the bearing gaskets installed on bearings of different sizes, and to propose a bearing gasket friction performance testing bench.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A bearing liner friction performance testing bench includes a placement platform, a mounting frame fixedly installed on the placement platform, an electric telescopic rod fixedly installed on the mounting frame, a rotary motor fixedly installed at the bottom end of the electric telescopic rod, a rotating disk fixedly installed at the output end of the rotary motor, a placement groove opened in the rotating disk, a friction roller for rubbing the bearing liner is arranged in the placement groove, and four equidistant sliding holes are opened on the placement platform, and a positioning rod for positioning and clamping the bearing liner is slidably arranged in each of the four sliding holes.

[0007] Preferably, the rotating disk has a first through hole that is vertically arranged and connected to the placement groove, a limit rod is slidably arranged in the first through hole, and the friction roller has a second through hole that is connected to the placement limit rod.

[0008] Preferably, an L-shaped fixing plate is fixedly installed on the rotating disk, and an electric push rod is fixedly installed on the fixing plate, with the bottom end of the electric push rod fixedly connected to the limiting rod.

[0009] Preferably, the placement platform has a placement cavity, in which two symmetrically arranged fixing blocks are fixedly installed, and a bidirectional lead screw is rotatably installed between the two fixing blocks. A servo motor that drives the bidirectional lead screw to rotate is fixedly installed on the outer wall of the fixing blocks.

[0010] Preferably, two symmetrically arranged guide rods are also fixedly installed inside the placement cavity. Two symmetrically arranged second movable blocks are slidably arranged on the outer walls of the two guide rods. Connecting rods are rotatably installed on the side walls of the two second movable blocks via rotating seats.

[0011] Preferably, nuts are fitted on the outer walls of both ends of the bidirectional lead screw, and first movable blocks are fixedly installed on the outer walls of the two nuts. The two side walls of the two first movable blocks are rotatably connected through a rotating seat and the other end of a connecting rod.

[0012] Preferably, two symmetrically arranged vertical plates are fixedly installed on the placement platform. A hydraulic rod is fixedly installed on each of the two vertical plates. A limit plate is fixedly installed at the end of each of the two hydraulic rods, and a rubber friction plate is fixedly installed on each of the two limit plates.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] This invention utilizes the rotation of a bidirectional lead screw to pull two second movable blocks at one end of each of the two pairs of connecting rods to move them toward each other within the sliding hole. This adjusts the distance between the four guide rods, facilitating the positioning and clamping of bearing pads of different sizes. In conjunction with the extension and retraction of the electric push rod, the limiting rod releases the limiting rod from the friction roller, making it easy to replace friction rollers of different sizes and enabling the friction roller to perform friction performance testing on bearing pads of different sizes. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a bearing liner friction performance testing bench proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the rotating disk and friction roller of a bearing liner friction performance testing bench proposed in this utility model.

[0017] Figure 3 This is a schematic diagram of the electric push rod and limit rod of a bearing liner friction performance testing bench proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of the guide rod and positioning rod of a bearing liner friction performance testing bench proposed in this utility model.

[0019] In the diagram: 1. Placement platform; 2. Mounting frame; 3. Electric telescopic rod; 4. Rotary motor; 5. Turning plate; 6. Placement slot; 7. Fixing plate; 8. Electric push rod; 9. Limiting rod; 10. Friction roller; 11. Placement cavity; 12. Fixing block; 13. Bidirectional lead screw; 14. Servo motor; 15. First movable block; 16. Connecting rod; 17. Second movable block; 18. Guide rod; 19. Positioning rod; 20. Vertical plate; 21. Hydraulic rod; 22. Limiting plate; 23. Sliding hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 1-4 A bearing liner friction performance testing bench includes a placement platform 1, on which a hollow ring is provided, and the bearing liner is fixedly placed inside the hollow ring. A mounting frame 2 is fixedly installed on the placement platform 1 by bolt assembly, and an electric telescopic rod 3 is fixedly installed on the mounting frame 2 by bolt assembly. A rotary motor 4 is fixedly installed at the bottom end of the electric telescopic rod 3 by bolt assembly, and a rotating disk 5 is fixedly installed at the output end of the rotary motor 4. A placement groove 6 is opened in the rotating disk 5, and a friction roller 10 for rubbing the bearing liner is provided in the placement groove 6. Four equidistant sliding holes 23 are opened on the placement platform 1, and positioning rods 19 for positioning and clamping the bearing liner are slidably arranged in each of the four sliding holes 23.

[0022] The rotating disk 5 has a first through hole that is vertically arranged and connected to the placement groove 6. A limit rod 9 is slidably arranged in the first through hole. The friction roller 10 has a second through hole that is connected to the limit rod 9. By placing the limit rod 9 in both the first and second through holes at the same time, the limit rod 9 limits the friction roller 10 placed in the placement groove 6, preventing the friction roller 10 from sliding out of the limit rod 9. An L-shaped fixing plate 7 is fixedly installed on the rotating disk 5. An electric push rod 8 is fixedly installed on the fixing plate 7, and the bottom end of the electric push rod 8 is fixedly connected to the limit rod 9. This is used to control the limit rod 9 to slide in the first through hole, so that the limit rod 9 limits the friction roller 10.

[0023] The placement platform 1 has a placement cavity 11. Two symmetrically arranged fixing blocks 12 are fixedly installed in the placement cavity 11, and a bidirectional lead screw 13 is rotatably installed between the two fixing blocks 12. A servo motor 14 that drives the bidirectional lead screw 13 to rotate is fixedly installed on the outer wall of the fixing blocks 12. Two symmetrically arranged guide rods 18 are also fixedly installed in the placement cavity 11. Two symmetrically arranged second movable blocks 17 are slidably arranged on the outer wall of each guide rod 18 to limit the movement direction of the second movable blocks 17, so that the two second movable blocks 17 can only move linearly along the direction of the guide rods 18. A connecting rod 16 is rotatably installed on the side wall of each of the two second movable blocks 17 through a rotating seat.

[0024] Nuts are fitted on the outer walls of both ends of the bidirectional lead screw 13. First movable blocks 15 are fixedly installed on the outer walls of the two nuts. The two side walls of the two first movable blocks 15 are rotatably connected through a rotating seat and the other end of the connecting rod 16.

[0025] Two symmetrically arranged vertical plates 20 are fixedly installed on the placement platform 1. A hydraulic rod 21 is fixedly installed on each of the two vertical plates 20. A limit plate 22 is fixedly installed at the end of each of the two hydraulic rods 21. A rubber friction plate is fixedly installed on each of the two limit plates 22 to increase the friction between the limit plate and the outer wall of the hollow ring. This prevents the hollow ring from rotating the bearing pad when the friction roller 10 performs friction performance testing on the bearing pad, thus affecting the test results.

[0026] It should be noted that the bolt assembly is existing technology, specifically including bolts and bolt holes. The specific models and specifications of the servo motor 14 and friction roller 10 need to be selected and determined according to the actual specifications of the device. The specific selection and calculation methods adopt existing technology in this field, so they will not be elaborated here.

[0027] The functional principle of this utility model can be explained through the following operation methods:

[0028] In use, the bearing pad is fixedly placed inside the hollow ring on the placement platform 1. The output end of the servo motor 14 drives the bidirectional lead screw 13 to rotate, causing the two first movable blocks 15 to move towards each other. At the same time, the two first movable blocks 15 pull one end of the two connecting rods 16 respectively, reducing the included angle between the two connecting rods 16. The other end of the connecting rod 16 pulls the second movable block 17, causing the two second movable blocks 17 to move towards each other under the guidance of the guide rod 18, shortening the distance between the two positioning rods 19. This allows for the positioning and clamping of hollow rings of different sizes, facilitating the inspection of bearing pads of different sizes.

[0029] After the four positioning rods 19 complete the positioning and clamping of the hollow ring, the extension and retraction of the two hydraulic rods 21 pushes the two limiting plates 22 to move towards the hollow ring, so that the rubber friction plates set on the two limiting plates 22 are in contact with the outer wall of the hollow ring, preventing the hollow ring from causing the bearing pad to rotate during friction performance testing.

[0030] When the hollow ring is replaced with a different size, the electric push rod 8 pulls the limiting rod 9 upward, releasing the limiting rod 9 from limiting the friction roller 10, making it easy to replace the friction roller 10 with one suitable for the hollow ring of a different size. The electric telescopic rod 3 drives the rotary motor 4 to move up and down, adjusting the height of the rotating disk 5, so that the friction roller 10 set on the rotating disk 5 moves with the rotating disk 5. After adjusting to the appropriate position, the output end of the rotary motor 4 drives the rotating disk 5 to rotate, so that the friction roller 10 performs friction performance testing on the bearing liner fixed inside the hollow ring.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A test bench for the frictional performance of bearing pads, comprising a resting table (1), characterized in that, A mounting frame (2) is fixedly installed on the placement platform (1). An electric telescopic rod (3) is fixedly installed on the mounting frame (2). A rotary motor (4) is fixedly installed at the bottom end of the electric telescopic rod (3). A rotating disk (5) is fixedly installed at the output end of the rotary motor (4). A placement groove (6) is opened in the rotating disk (5). A friction roller (10) for rubbing the bearing pad is provided in the placement groove (6). Four sliding holes (23) are opened on the placement platform (1). A positioning rod (19) for positioning and clamping the bearing pad is slidably arranged in each of the four sliding holes (23).

2. A test rig for determining the frictional properties of a bearing liner according to claim 1, characterized in that The rotating disk (5) has a first through hole that is vertically arranged and connected to the placement groove (6). A limit rod (9) is slidably arranged in the first through hole. The friction roller (10) has a second through hole that is connected to the placement limit rod (9).

3. A test rig for determining the frictional properties of a bearing liner according to claim 2, characterized in that An L-shaped fixing plate (7) is fixedly installed on the rotating disk (5), and an electric push rod (8) is fixedly installed on the fixing plate (7), with the bottom end of the electric push rod (8) and the limiting rod (9) fixedly connected.

4. A bearing liner friction performance test bench according to claim 3, characterized in that, The placement platform (1) has a placement cavity (11) inside. Two symmetrically arranged fixing blocks (12) are fixedly installed inside the placement cavity (11), and a bidirectional lead screw (13) is rotatably installed between the two fixing blocks (12). A servo motor (14) for driving the bidirectional lead screw (13) to rotate is fixedly installed on the outer wall of the fixing block (12).

5. The bearing liner friction performance testing bench according to claim 4, characterized in that, Two symmetrically arranged guide rods (18) are also fixedly installed in the placement cavity (11). Two symmetrically arranged second movable blocks (17) are slidably arranged on the outer wall of each of the two guide rods (18). Connecting rods (16) are rotatably installed on the side wall of each of the two second movable blocks (17) through a rotating seat.

6. A bearing liner friction performance test bench according to claim 5, characterized in that Nuts are fitted on the outer walls of both ends of the bidirectional lead screw (13), and first movable blocks (15) are fixedly installed on the outer walls of the two nuts. The two side walls of the two first movable blocks (15) are rotatably connected through a rotating seat and the other end of the connecting rod (16).

7. A bearing liner friction performance test bench according to claim 6, characterized in that Two symmetrically arranged vertical plates (20) are fixedly installed on the placement platform (1). A hydraulic rod (21) is fixedly installed on each of the two vertical plates (20). A limit plate (22) is fixedly installed at the end of each of the two hydraulic rods (21), and a rubber friction plate is fixedly installed on each of the two limit plates (22).

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