Bearing clearance detection device

Abstract

The utility model discloses a bearing clearance detection device which comprises a base and a detection dial indicator, and a first clamping frame, a second clamping frame and a pushing assembly used for pushing the first clamping frame and the second clamping frame to move relatively are integrated on the top of the base. According to the folding bearing, the distance between the first clamping frame and the second clamping frame is adjusted through cooperation of the driving piece and the second transmission rod, the second clamping frame is higher than the first clamping frame, receding space exists on the outer sides of the two clamping frames, the folding bearing can be conveniently combined between the first clamping frame and the second clamping frame, and the inner ring of the bearing abuts against the tops of the two bottom blocks; the first transmission rod pushes the pressing plate to make contact with the top of the inner ring to fix the inner ring of the bearing, then the vertical column and the middle base are combined, the position of the detection dial indicator is adjusted, the outer ring of the bearing is shifted, the offset distance is recorded through the detection dial indicator, clearance detection of the bearing is completed, the adaptive bearing size of the detection device is expanded, and meanwhile the detection efficiency is improved. And the positioning stability of the bearing inner ring is ensured.

Description

Technical Field

[0001] This utility model relates to the field of bearing testing technology, and in particular to a bearing clearance testing device. Background Technology

[0002] A bearing clearance testing device is a device or tool used to measure the internal clearance of a rolling bearing. Bearing clearance refers to the maximum distance that the inner and outer rings of a bearing can move radially or axially before installation. This parameter is crucial for ensuring the performance, lifespan, and operational stability of the bearing in its application.

[0003] Chinese Patent Publication No. CN220829161U, published on April 23, 2024, discloses a bearing clearance detection device, including a base comprising multiple stacked circular steps, the diameter of which increases sequentially from top to bottom, the circular steps being used to place the bearing to be tested; a connecting column rotatably fitted within the base, the connecting column being parallel to the axial direction of the circular steps; and a mounting rod with a mounting bracket for mounting a dial indicator, the mounting rod being mounted on the connecting column, the axial direction of the mounting rod being perpendicular to the axial direction of the connecting column.

[0004] Existing bearing clearance detection devices, such as those described above, involve placing the bearing on a corresponding step, moving the outer ring of the bearing, and detecting the offset using a dial indicator. However, in practice, the bearing size that the gradient-distributed steps can cover is relatively limited, and the positioning effect of the bearing inner ring is poor. Therefore, there is an urgent need to propose a corresponding bearing clearance detection device to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a bearing clearance detection device in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A bearing clearance detection device includes a base and a dial indicator. The top of the base integrates a first holder, a second holder, and a pushing component for relative movement of the first holder and the second holder. The bottom of both the first holder and the second holder are fixedly connected to a base block. The top of the second holder integrates a fixing component for fixing the inner ring of the bearing. The top of the base is fixedly connected to a vertical column via a central seat. A rotating sleeve is rotatably connected to the outer wall of the vertical column. The rotating sleeve is fixedly engaged with the dial indicator via a mounting rod.

[0008] Preferably, the vertical column is fixedly connected to the top of the central seat by a fastening rod.

[0009] Preferably, a rectangular block is fixedly connected to the bottom of the vertical column, and the outer wall of the rectangular block is engaged with the top of the middle seat through a slot. The vertical column, the rectangular block and the inner wall of the middle seat are all screwed together with the outer wall of the fastening rod.

[0010] Preferably, the pushing component includes a driving member fixedly connected to the outer wall of the base, and a transmission rod two is fixedly connected to the output end of the driving member. The outer wall of the transmission rod two is screwed into the inner wall of two sets of screw sleeves through two sets of opposite threaded grooves. The two sets of screw sleeves are fixedly connected to the bottom of the card holder one and the card holder two, respectively.

[0011] Preferably, the fixing component includes a transmission rod rotatably connected to the inner wall of the card holder, and the outer wall of the transmission rod rotatably connected to a connecting seat that is fixedly connected to the outer wall of the pressure plate.

[0012] Preferably, the bottom of the pressure plate and the top of the two sets of bottom blocks are fixedly connected with rubber pads.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0014] 1. In this application, based on the inner ring diameter of the bearing to be tested, the distance between the first and second clamping brackets is adjusted by the cooperation of the drive component and the second transmission rod. Since the second clamping bracket is higher than the first clamping bracket, there is clearance space on the outer side of the two clamping brackets. The folded bearing can be easily connected between the first and second clamping brackets, and the inner ring of the bearing abuts against the top of the two bottom blocks. The pressure plate is pushed to contact the top of the inner ring by the first transmission rod to fix the inner ring of the bearing. Then, the vertical column and the middle seat are combined. After adjusting the position of the dial indicator, the outer ring of the bearing is moved. The offset distance is recorded by the dial indicator to complete the bearing clearance test. This expands the bearing size that the testing device can adapt to while ensuring the stable positioning of the inner ring of the bearing.

[0015] 2. In this application, the rectangular block at the bottom of the vertical column is combined with the slot at the top of the middle seat. By rotating the fastening rod, it is simultaneously screwed into the vertical column, the rectangular block, and the top of the middle seat, thereby realizing the installation of the middle seat. This ensures the convenience of assembling and disassembling the middle seat. At the same time, the cooperation between the rectangular block and the slot provides axial constraint for the middle seat, preventing the middle seat from loosening when the rotating sleeve is linked, thereby improving the stability of the bearing clearance detection device. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown;

[0017] Figure 2 A schematic diagram of the card holder two structure according to an embodiment of the present utility model is shown;

[0018] Figure 3A schematic diagram of a pressure plate structure according to an embodiment of the present invention is shown;

[0019] Figure 4 A schematic diagram of a rectangular block structure provided according to an embodiment of the present invention is shown.

[0020] Legend:

[0021] 1. Base; 2. Drive unit; 3. Card holder one; 4. Card holder two; 5. Base block; 6. Middle seat; 7. Vertical column; 8. Rotary sleeve; 9. Fastening rod; 10. Mounting rod; 11. Dial indicator; 12. Pressure plate; 13. Transmission rod one; 14. Transmission rod two; 15. Rectangular block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution:

[0024] A bearing clearance detection device includes a base 1 and a dial indicator 11. The top of the base 1 is integrated with a first bracket 3, a second bracket 4, and a pushing component for pushing the first bracket 3 and the second bracket 4 to move relative to each other. The bottom of the first bracket 3 and the second bracket 4 are both fixedly connected with a base block 5. The top of the second bracket 4 is integrated with a fixing component for fixing the inner ring of the bearing. The top of the base 1 is fixedly connected with a vertical column 7 through a middle seat 6. The outer wall of the vertical column 7 is rotatably connected with a rotating sleeve 8. The rotating sleeve 8 is fixedly engaged with the dial indicator 11 through a mounting rod 10.

[0025] Based on the required inner ring diameter of the bearing, the distance between the first bracket 3 and the second bracket 4 is adjusted by the cooperation of the drive component 2 and the transmission rod 2 14. Since the second bracket 4 is higher than the first bracket 3, there is clearance space on the outer side of the two brackets, which allows the bearing to be easily connected between the first bracket 3 and the second bracket 4. The inner ring of the bearing abuts against the top of the two sets of bottom blocks 5. The pressure plate 12 is pushed to contact the top of the inner ring by the transmission rod 1 13 to fix the inner ring of the bearing. Then, the vertical column 7 and the middle seat 6 are combined. After adjusting the position of the dial indicator 11, the outer ring of the bearing is moved. The offset distance is recorded by the dial indicator 11 to complete the bearing clearance detection. This expands the bearing size that the detection device can adapt to while ensuring the stable positioning of the inner ring of the bearing.

[0026] Specifically, such as Figure 2 and Figure 4As shown, the vertical column 7 is fixedly connected to the top of the middle seat 6 via the fastening rod 9. A rectangular block 15 is fixedly connected to the bottom of the vertical column 7. The outer wall of the rectangular block 15 engages with the top of the middle seat 6 via a slot. The inner walls of the vertical column 7, the rectangular block 15, and the middle seat 6 are all screwed into the outer wall of the fastening rod 9. By engaging the rectangular block 15 at the bottom of the vertical column 7 with the slot at the top of the middle seat 6, and rotating the fastening rod 9 to simultaneously engage with the vertical column 7, the rectangular block 15, and the top of the middle seat 6, the installation of the middle seat 6 is achieved. This ensures the ease of assembly and disassembly of the middle seat 6, while the engagement of the rectangular block 15 with the slot provides axial constraint for the middle seat 6, preventing the middle seat 6 from loosening due to the rotation linkage of the rotating sleeve 8, thereby improving the stability of the bearing clearance detection device.

[0027] Specifically, such as Figure 2 and Figure 3 As shown, the pushing component includes a driving component 2 fixedly connected to the outer wall of the base 1. A transmission rod 14 is fixedly connected to the output end of the driving component 2. The outer wall of the transmission rod 14 is screwed into the inner wall of two sets of screw sleeves through two sets of opposite threaded grooves. The two sets of screw sleeves are fixedly connected to the bottom of the first bracket 3 and the second bracket 4, respectively. The driving component 2 drives the transmission rod 14 to rotate. The transmission rod 14 is screwed into the two sets of screw sleeves through two sets of opposite threaded grooves, thereby providing a pushing force for the first bracket 3 and the second bracket 4. The fixing component includes a transmission rod 13 rotatably connected to the inner wall of the second bracket 4. A connecting seat fixedly connected to the outer wall of the pressure plate 12 is screwed into the outer wall of the transmission rod 13. Rotating the transmission rod 13, the transmission rod 13 provides a pushing force to the connecting seat and the pressure plate 12 through screwing into the connecting seat. Rubber pads are fixedly connected to the bottom of the pressure plate 12 and the top of the two sets of bottom blocks 5, thereby further ensuring the positioning effect of the pressure plate 12 on the bearing.

[0028] Working principle: Based on the required inner ring diameter of the bearing to be tested, the distance between clamp 3 and clamp 4 is adjusted through the cooperation of drive component 2 and transmission rod 2 14. Since clamp 4 is higher than clamp 3, there is clearance space on the outer sides of the two clamps, allowing the bearing to be easily engaged between clamp 3 and clamp 4. The inner ring of the bearing abuts against the top of the two base blocks 5. Then, the transmission rod 1 13 pushes the pressure plate 12 to contact the top of the inner ring, fixing the inner ring. Next, the vertical column 7 and the center seat 6 are combined. After adjusting the position of the dial indicator 11, the outer ring of the bearing is moved, and the distance is measured by the dial indicator 1. 1. Record the offset distance to complete the bearing clearance detection. This expands the bearing size that the detection device can adapt to while ensuring the stable positioning of the bearing inner ring. The rectangular block 15 at the bottom of the vertical column 7 is engaged with the slot at the top of the middle seat 6. By rotating the fastening rod 9, it is simultaneously screwed into the vertical column 7, the rectangular block 15, and the top of the middle seat 6, thereby realizing the installation of the middle seat 6. This ensures the convenience of disassembling and assembling the middle seat 6. At the same time, the cooperation between the rectangular block 15 and the slot provides axial constraint for the middle seat 6, preventing the middle seat 6 from loosening when the rotating sleeve 8 is linked to the rotation, thus improving the stability of the bearing clearance detection device.

[0029] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bearing clearance detection device, comprising a base (1) and a dial indicator (11), characterized in that, The base (1) has a card holder one (3), a card holder two (4) and a pushing component for pushing the card holder one (3) and card holder two (4) to move relative to each other. The bottom of the card holder one (3) and the card holder two (4) are both fixedly connected to a bottom block (5). The top of the card holder two (4) has a fixing component for fixing the inner ring of the bearing. The top of the base (1) is fixedly connected to a vertical column (7) through a middle seat (6). The outer wall of the vertical column (7) is rotatably connected to a rotating sleeve (8). The rotating sleeve (8) is fixedly engaged with a measuring dial indicator (11) through a mounting rod (10).

2. The bearing clearance detection device according to claim 1, characterized in that, The vertical column (7) is fixedly connected to the top of the middle seat (6) by a fastening rod (9).

3. The bearing clearance detection device according to claim 2, characterized in that, A rectangular block (15) is fixedly connected to the bottom of the vertical column (7). The outer wall of the rectangular block (15) is engaged with the top of the middle seat (6) through a slot. The inner wall of the vertical column (7), the rectangular block (15) and the middle seat (6) are all screwed together with the outer wall of the fastening rod (9).

4. The bearing clearance detection device according to claim 3, characterized in that, The pushing assembly includes a driving component (2) fixedly connected to the outer wall of the base (1). The output end of the driving component (2) is fixedly connected to a transmission rod (14). The outer wall of the transmission rod (14) is screwed into the inner wall of two sets of screw sleeves through two sets of opposite threaded grooves. The two sets of screw sleeves are fixedly connected to the bottom of the first card holder (3) and the second card holder (4), respectively.

5. A bearing clearance detection device according to claim 4, characterized in that, The fixing component includes a transmission rod (13) rotatably connected to the inner wall of the card holder (4), and the outer wall of the transmission rod (13) is screwed to a connecting seat that is fixedly connected to the outer wall of the pressure plate (12).

6. The bearing clearance detection device according to claim 5, characterized in that, The bottom of the pressure plate (12) and the top of the two sets of bottom blocks (5) are both fixedly connected with rubber pads.

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