Bearing wall thickness difference detection tool

Abstract

The utility model discloses a bearing wall thickness difference detection tool which comprises a bearing, a clamping and fixing unit is arranged on the bottom surface of the bearing detection bearing, a fence is fixedly connected to the top surface of the bearing detection clamping and fixing unit, a thickness measuring unit is arranged on the top surface of the bearing detection clamping and fixing unit, and the bearing detection thickness measuring unit comprises a sliding block. The bearing detection sliding block is slidably connected to the interior of the top surface of the clamping and fixing unit, and the top surface of the bearing detection sliding block is fixedly connected with a loop bar; the bearing is placed on the top face of the clamping and fixing unit and fixed, at the moment, the adjusting nut is rotated, the telescopic rod is driven to descend, the cross beam and components on the surface of the cross beam are driven to descend, the cross beam is tightly attached to the top face of the bearing, one end of the cross beam is fixed to the axis of the bearing through the fixing screw, and at the moment, the support is shifted; and under the pushing of the spring, the side surface of the movable wheel is driven to cling to the inner wall of the bearing so as to detect whether the inner wall of the bearing is flat.

Description

Technical Field

[0001] This utility model relates to the field of bearing testing technology, specifically to a bearing wall thickness difference testing fixture. Background Technology

[0002] Bearings are essential components in modern machinery. They primarily support rotating mechanical parts, reduce the static friction coefficient during operation, and ensure rotational accuracy. During bearing inspection, rigorous testing of the bearing seal groove is crucial, as its quality directly impacts the bearing's sealing performance. The bearing seal groove, in conjunction with the sealing cap, effectively prevents dust and moisture from entering the bearing and affecting its operational performance.

[0003] A search revealed that patent CN216432828U discloses a bearing fixture inspection device. This device uses a lever to amplify the offset distance, making it easier to compare the movement distance of the observation rod within the observation hole. This allows for the observation of whether the hydraulic head has shifted, facilitating timely adjustment and maintenance of the bearing fixture. It also ensures the verticality of the hydraulic head within the bearing fixture. The bottom of the bearing fixture inspection device is equipped with an elastically retractable locking block, making it suitable for bases of different sizes.

[0004] The aforementioned patent describes a device that amplifies the offset distance using a lever to facilitate observation of the hydraulic head's offset distance. It also expands its application range by incorporating a retractable locking block. However, while this device can observe the offset of the hydraulic head used for testing, it is not convenient to read the specific changes in bearing thickness difference. Therefore, we provide a bearing wall thickness difference detection fixture to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a bearing wall thickness difference detection fixture to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A bearing wall thickness difference detection fixture includes a bearing, a clamping and fixing unit is provided on the bottom surface of the bearing, a fence is fixedly connected to the top surface of the clamping and fixing unit, and a thickness measuring unit is provided on the top surface of the clamping and fixing unit.

[0008] The thickness measuring unit includes a slider, which is slidably connected inside the top surface of the clamping and fixing unit. A sleeve rod is fixedly connected to the top surface of the slider, and an adjusting nut is rotatably connected to the top surface of the sleeve rod. A telescopic rod is threadedly connected to the inside of the adjusting nut.

[0009] One end of the bottom surface of the telescopic rod is movably connected to the inside of the sleeve rod, one end of the top surface of the slider is fixedly connected to a limit rod, the top surface of the telescopic rod is fixedly connected to a base, and the limit rod is slidably connected to the inside of one end of the bottom surface of the base.

[0010] A further improvement of this utility model is that: a rotating rod is rotatably connected to the top surface of the base, a crossbeam is fixedly connected to the side of the base, a fixing screw is rotatably connected to one end of the top surface of the crossbeam, and a spring is fixedly connected to the inside of the crossbeam.

[0011] A further improvement of this utility model is that: a bracket is movably connected inside the spring, a movable wheel is rotatably connected inside the bottom side of the bracket, a reference frame is slidably connected to the outer surface of the spring, and a fastening bolt is threadedly connected inside the side of the reference frame.

[0012] A further improvement of this utility model is that: a movable slider is slidably connected to the other end of the outer surface of the crossbeam; a movable rod is movably connected inside the bottom surface of the movable slider; a rotating wheel is rotatably connected inside the bottom surface of the movable rod; two limiting springs are fixedly connected to the side of the movable rod; and two fastening bolts are threadedly connected inside the side of the movable slider.

[0013] A further improvement of the present invention is that the clamping and fixing unit includes a rubber pad, the rubber pad is in close contact with the inner side of the bearing, a push block is fixedly connected to the side of the rubber pad, a base is slidably connected to the middle of the outer surface of the push block, a fixing block is fixedly connected to the top surface of the base, the slider is slidably connected to the inside of the top surface of the base, and one end of the fixing screw is threadedly connected to the inside of the top surface of the fixing block.

[0014] A further improvement of this utility model is that: a drive plate is movably connected to the inner top surface of the base, the bottom end of the outer surface of the push block is movably connected to the inside of the drive plate, a fixed bracket is fixedly connected to the inner bottom surface of the base, a motor is fixedly connected inside the fixed bracket, and the drive plate is fixedly connected to the output end of the motor.

[0015] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0016] 1. This utility model provides a bearing wall thickness difference detection fixture. By placing the bearing on the top surface of the clamping and fixing unit and fixing it, the adjusting nut is rotated to drive the telescopic rod to descend, which in turn drives the crossbeam and its surface components to descend, so that the crossbeam is in close contact with the top surface of the bearing. One end of the crossbeam is fixed to the shaft of the bearing by the fixing screw. At this time, the bracket is moved so that under the push of the spring, the side of the movable wheel is in close contact with the inner wall of the bearing, so as to detect whether the inner wall of the bearing is flat.

[0017] After the movable wheel is in close contact with the inner wall of the bearing, adjust the reference frame so that the top pointer of the bracket points to the middle of the top scale of the reference frame, and then use the fastening bolt to fix the reference frame in the current position.

[0018] Adjust the moving slider so that the wheel at the bottom of the moving slider is in close contact with the outer wall of the bearing, and use the second fastening bolt to fix the moving slider in the current position. By reading the difference between the reference box and the current scale indicated by the moving slider, the current wall thickness of the bearing can be read.

[0019] At this point, hold the lever and slowly turn it. The slider slides inside the clamping and fixing unit. The fixing screw ensures that the movable wheel and the rotating wheel roll tightly against the inner and outer walls of the bearing. At this time, you can observe the change in the degree of the top surface of the reference frame pointed to by the pointer on the top of the bracket and read the current change in the thickness of the inner wall of the bearing.

[0020] By observing the changes in the readings of the movable rod on the side of the crossbeam, we can understand the changes in the thickness of the outer wall of the bearing. By comparing the changes in the internal thickness and the outer wall thickness of the bearing, we can determine whether the bearing is qualified and read the specific changes in its current thickness.

[0021] 2. This utility model provides a bearing wall thickness difference detection fixture. By placing the bearing on the outer surface of multiple push blocks, the motor drives the drive plate to rotate. Through the squeezing of the top opening of the drive plate and the base, the four push blocks are driven to expand outward. The rubber pads on the side of the push blocks will be tightly attached to the inner wall of the bearing to ensure that the bearing will not shake during measurement. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the thickness measuring unit of this utility model;

[0024] Figure 3 This is a schematic diagram of the component structure of the thickness measuring unit of this utility model;

[0025] Figure 4 This is a schematic diagram of the clamping and fixing unit of this utility model;

[0026] Figure 5 This is a schematic diagram of the component structure of the clamping and fixing unit of this utility model.

[0027] In the diagram: 1. Bearing; 2. Clamping and fixing unit; 21. Rubber pad; 22. Push block; 23. Fixing block; 24. Base; 25. Drive plate; 26. Motor; 27. Fixing bracket; 3. Fence; 4. Thickness measuring unit; 41. Slider; 42. Sleeve rod; 43. Adjusting nut; 44. Telescopic rod; 45. Limiting rod; 46. Base; 47. Rotating rod; 48. Crossbeam; 49. Fixing screw; 410. Bracket; 411. Movable wheel; 412. Spring; 413. Reference frame; 414. Fastening bolt one; 415. Moving slider; 416. Fastening bolt two; 417. Movable rod; 418. Limiting spring; 419. Rotating wheel. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to embodiments:

[0029] Example 1: As Figure 1-5 As shown, this utility model provides a bearing wall thickness difference detection fixture, including a bearing 1, a clamping and fixing unit 2 is provided on the bottom surface of the bearing 1, a fence 3 is fixedly connected to the top surface of the bearing clamping and fixing unit 2, and a thickness measuring unit 4 is provided on the top surface of the bearing clamping and fixing unit 2.

[0030] The bearing detection thickness measuring unit 4 includes a slider 41, which is slidably connected inside the top surface of the clamping and fixing unit 2. A sleeve rod 42 is fixedly connected to the top surface of the bearing detection slider 41, and an adjusting nut 43 is rotatably connected to the top surface of the bearing detection sleeve rod 42. A telescopic rod 44 is threadedly connected inside the bearing detection adjusting nut 43.

[0031] One end of the bottom surface of the bearing detection telescopic rod 44 is movably connected to the inside of the sleeve rod 42. One end of the top surface of the bearing detection slider 41 is fixedly connected to the limit rod 45. The top surface of the bearing detection telescopic rod 44 is fixedly connected to the base 46. The bearing detection limit rod 45 is slidably connected to the inside of one end of the bottom surface of the base 46.

[0032] A rotating rod 47 is rotatably connected to the top surface of the bearing testing base 46, a crossbeam 48 is fixedly connected to the side of the bearing testing base 46, a fixing screw 49 is rotatably connected to one end of the top surface of the bearing testing crossbeam 48, and a spring 412 is fixedly connected inside the bearing testing crossbeam 48.

[0033] The other end of the outer surface of the bearing detection beam 48 is slidably connected to a movable slider 415. The bottom surface of the bearing detection movable slider 415 is movably connected to a movable rod 417. The bottom surface of the bearing detection movable rod 417 is rotatably connected to a rotating wheel 419. The side of the bearing detection movable rod 417 is fixedly connected to two limit springs 418. The side of the bearing detection movable slider 415 is threadedly connected to a fastening bolt 416.

[0034] The bearing detection spring 412 is internally connected to a bracket 410. The bearing detection bracket 410 is internally connected to a movable wheel 411 at the bottom side of its side. The bearing detection spring 412 is externally connected to a reference frame 413. The bearing detection reference frame 413 is internally connected to a fastening bolt 414 by a thread on its side.

[0035] In this embodiment, a rough surface for fixing is provided on the side of the crossbeam 48. The sides of fastening bolt 414 and fastening bolt 416 are in close contact with the rough surface of the crossbeam 48. The moving slider 415 and fastening bolt 414 are fixed in a suitable position by friction. The movable wheel 411 and the rotating wheel 419 are in close contact with the inner wall and outer wall of the bearing 1, respectively. There are two limiting springs 418, which are respectively set at the left and right ends of the movable rod 417 to ensure that the movable rod 417 can return to the center position after the external force is lost. The reference frame 413 and the surface of the crossbeam 48 are both provided with scales.

[0036] Place the bearing 1 on the top surface of the clamping and fixing unit 2 and fix it. Then rotate the adjusting nut 43 to drive the telescopic rod 44 to descend, which in turn drives the crossbeam 48 and its surface components to descend, so that the crossbeam 48 is in close contact with the top surface of the bearing 1. Then fix one end of the crossbeam 48 to the axis of the bearing 1 by the fixing screw 49. Then move the bracket 410 so that under the push of the spring 412, it drives the side of the movable wheel 411 to be in close contact with the inner wall of the bearing 1, so as to check whether the inner wall of the bearing 1 is flat.

[0037] After the movable wheel 411 is in close contact with the inner wall of the bearing 1, adjust the reference frame 413 so that the top pointer of the bracket 410 points to the middle of the top scale of the reference frame 413, and then use the fastening bolt 414 to fix the reference frame 413 in the current position.

[0038] Adjust the sliding block 415 so that the rotating wheel 419 at the bottom of the sliding block 415 is in close contact with the outer wall of the bearing 1, and use the fastening bolt 416 to fix the sliding block 415 in the current position. By reading the current scale difference between the reference box 413 and the sliding block 415, the current wall thickness of the bearing 1 can be read.

[0039] At this time, hold the rotating rod 47 and slowly turn it. The slider 41 slides inside the clamping and fixing unit 2. By fixing the fixing screw 49, it is ensured that the movable wheel 411 and the rotating wheel 419 roll tightly against the inner and outer walls of the bearing 1. At this time, the change of the degree of the top surface of the reference frame 413 pointed to by the top pointer of the bracket 410 can be observed, and the thickness change of the inner wall of the bearing 1 can be read.

[0040] By observing the change in the reading of the movable rod 417 on the side of the crossbeam 48, we can understand the change in the thickness of the outer wall of the bearing 1. By observing the changes in the thickness of the inner wall and the outer wall of the bearing 1, we can determine whether the bearing 1 is qualified and read the specific change in its current thickness.

[0041] Example 2: Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the bearing detection clamping and fixing unit 2 includes a rubber pad 21, the bearing detection rubber pad 21 is tightly attached to the inner side of the bearing 1, a push block 22 is fixedly connected to the side of the bearing detection rubber pad 21, a base 24 is slidably connected to the middle of the outer surface of the bearing detection push block 22, a fixing block 23 is fixedly connected to the top surface of the bearing detection base 24, a bearing detection slider 41 is slidably connected to the inside of the top surface of the base 24, and one end of the bearing detection fixing screw 49 is threadedly connected to the inside of the top surface of the fixing block 23;

[0042] A drive plate 25 is movably connected to the inner top surface of the bearing detection base 24. The bottom end of the outer surface of the bearing detection push block 22 is movably connected to the inside of the drive plate 25. A fixed bracket 27 is fixedly connected to the inner bottom surface of the bearing detection base 24. A motor 26 is fixedly connected inside the bearing detection fixed bracket 27. The bearing detection drive plate 25 is fixedly connected to the output end of the motor 26.

[0043] In this embodiment, four push blocks 22 are arranged at a 90-degree angle, and one end of the fixing screw 49 is threaded to the top surface of the fixing block 23 to limit the movement trajectory of the thickness measuring unit 4.

[0044] The bearing 1 is placed on the outer surface of multiple push blocks 22. The motor 26 drives the drive plate 25 to rotate. Through the pressure of the top opening of the drive plate 25 and the base 24, the four push blocks 22 are pushed outward. The rubber pads 21 on the side of the push blocks 22 will stick tightly to the inner wall of the bearing 1 to ensure that the bearing 1 will not shake during measurement.

[0045] The working principle of this bearing wall thickness difference detection fixture will be explained in detail below.

[0046] like Figure 1-5 As shown, by placing the bearing 1 on the outer surface of multiple push blocks 22, the motor 26 drives the drive plate 25 to rotate. Through the squeezing of the top opening of the drive plate 25 and the base 24, the four push blocks 22 are driven to expand outward. The rubber pads 21 on the side of the push blocks 22 will stick tightly to the inner wall of the bearing 1 to ensure that the bearing 1 will not shake during measurement.

[0047] Place the bearing 1 on the top surface of the clamping and fixing unit 2 and fix it. Then rotate the adjusting nut 43 to drive the telescopic rod 44 to descend, which in turn drives the crossbeam 48 and its surface components to descend, so that the crossbeam 48 is in close contact with the top surface of the bearing 1. Then fix one end of the crossbeam 48 to the axis of the bearing 1 by the fixing screw 49. Then move the bracket 410 so that under the push of the spring 412, it drives the side of the movable wheel 411 to be in close contact with the inner wall of the bearing 1, so as to check whether the inner wall of the bearing 1 is flat.

[0048] After the movable wheel 411 is in close contact with the inner wall of the bearing 1, adjust the reference frame 413 so that the top pointer of the bracket 410 points to the middle of the top scale of the reference frame 413, and then use the fastening bolt 414 to fix the reference frame 413 in the current position.

[0049] Adjust the sliding block 415 so that the rotating wheel 419 at the bottom of the sliding block 415 is in close contact with the outer wall of the bearing 1, and use the fastening bolt 416 to fix the sliding block 415 in the current position. By reading the current scale difference between the reference box 413 and the sliding block 415, the current wall thickness of the bearing 1 can be read.

[0050] At this time, hold the rotating rod 47 and slowly turn it. The slider 41 slides inside the clamping and fixing unit 2. By fixing the fixing screw 49, it is ensured that the movable wheel 411 and the rotating wheel 419 roll tightly against the inner and outer walls of the bearing 1. At this time, the change of the degree of the top surface of the reference frame 413 pointed to by the top pointer of the bracket 410 can be observed, and the thickness change of the inner wall of the bearing 1 can be read.

[0051] By observing the change in the reading of the movable rod 417 on the side of the crossbeam 48, we can understand the change in the thickness of the outer wall of the bearing 1. By observing the changes in the thickness of the inner wall and the outer wall of the bearing 1, we can determine whether the bearing 1 is qualified and read the specific change in its current thickness.

[0052] After the measurement is completed, the rotating wheel 419 and the movable wheel 411 are moved away from the surface of the bearing 1 by tightening the first bolt 414 and the second bolt 416. The adjusting nut 43 is rotated to drive the telescopic rod 44 to rise, so that the crossbeam 48 is away from the surface of the bearing 1. The fixing screw 49 is rotated in the opposite direction and removed. At this time, the drive motor 26 causes the drive plate 25 to rotate in the opposite direction, which in turn drives the push block 22 to release the limit on the bearing 1, so that the bearing 1 used for testing can be removed.

[0053] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all modifications or improvements made without departing from the spirit and concept of the present invention are within the protection scope of the present invention.

Claims

1. A bearing wall thickness difference detection fixture, comprising a bearing (1), characterized in that: The bottom surface of the bearing (1) is provided with a clamping and fixing unit (2), the top surface of the clamping and fixing unit (2) is fixedly connected with a fence (3), and the top surface of the clamping and fixing unit (2) is provided with a thickness measuring unit (4). The thickness measuring unit (4) includes a slider (41), which is slidably connected inside the top surface of the clamping and fixing unit (2). A sleeve rod (42) is fixedly connected to the top surface of the slider (41), and an adjusting nut (43) is rotatably connected to the top surface of the sleeve rod (42). A telescopic rod (44) is threaded inside the adjusting nut (43). One end of the bottom surface of the telescopic rod (44) is movably connected to the inside of the sleeve rod (42), one end of the top surface of the slider (41) is fixedly connected to the limiting rod (45), the top surface of the telescopic rod (44) is fixedly connected to the base (46), and the limiting rod (45) is slidably connected to the inside of one end of the bottom surface of the base (46).

2. The bearing wall thickness difference detection fixture according to claim 1, characterized in that: A rotating rod (47) is rotatably connected to the top surface of the base (46), a crossbeam (48) is fixedly connected to the side of the base (46), a fixing screw (49) is rotatably connected to one end of the top surface of the crossbeam (48), and a spring (412) is fixedly connected inside the crossbeam (48).

3. The bearing wall thickness difference detection fixture according to claim 2, characterized in that: The spring (412) is movably connected to a bracket (410), and a movable wheel (411) is rotatably connected to the bottom side of the bracket (410). A reference frame (413) is slidably connected to the outer surface of the spring (412), and a fastening bolt (414) is threadedly connected to the side of the reference frame (413).

4. The bearing wall thickness difference detection fixture according to claim 3, characterized in that: A movable slider (415) is slidably connected to the other end of the outer surface of the crossbeam (48). A movable rod (417) is movably connected inside the bottom surface of the movable slider (415). A rotating wheel (419) is rotatably connected inside the bottom surface of the movable rod (417). Two limiting springs (418) are fixedly connected to the side of the movable rod (417). Two fastening bolts (416) are threadedly connected to the side of the movable slider (415).

5. The bearing wall thickness difference detection fixture according to claim 4, characterized in that: The clamping and fixing unit (2) includes a rubber pad (21) which is in close contact with the inner side of the bearing (1). A push block (22) is fixedly connected to the side of the rubber pad (21). A base (24) is slidably connected to the middle of the outer surface of the push block (22). A fixing block (23) is fixedly connected to the top surface of the base (24). A slider (41) is slidably connected to the inside of the top surface of the base (24). One end of the fixing screw (49) is threadedly connected to the inside of the top surface of the fixing block (23).

6. The bearing wall thickness difference detection fixture according to claim 5, characterized in that: The base (24) has a drive plate (25) movably connected to its inner top surface. The bottom of the outer surface of the push block (22) is movably connected to the inside of the drive plate (25). The base (24) has a fixed bracket (27) fixedly connected to its inner bottom surface. The fixed bracket (27) has a motor (26) fixedly connected to its inside. The drive plate (25) is fixedly connected to the output end of the motor (26).

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