A bearing clearance detection device

Abstract

The application relates to a bearing gap detection device and relates to the technical field of bearing detection equipment, which comprises a detection table, three positioning rods are arranged on the detection table, the three positioning rods are arranged in a ring array, a micrometer is arranged above the detection table, the micrometer is located on one side of the three positioning rods, three pressing rods are arranged above the three positioning rods, and the three pressing rods are arranged at the bottom of a fixing frame through a fixing plate. The inner ring of the bearing is sleeved outside the three positioning rods, the outer sides of the three positioning rods are matched with each other to abut against the inner wall of the inner ring of the bearing, the placement position of the bearing is fixed, the cylinder works, the three pressing rods are driven to move downward to press the inner ring of the bearing, the position of the bearing is fixed in cooperation with the three positioning rods, the bearing can be quickly and stably positioned, the position of the bearing does not need to be continuously adjusted by workers, and the efficiency and accuracy of bearing gap detection are improved.

Description

Technical Field

[0001] This application relates to the technical field of bearing testing equipment, and in particular to a bearing clearance testing device. Background Technology

[0002] Cylindrical roller bearings feature parallel rollers arranged with spacers or spacers between them to prevent tilting or friction between the rollers, effectively preventing an increase in rotational torque. Because roller bearings can withstand large loads and have high precision, they are widely used in industrial fields. Since most equipment has high precision requirements for bearings, after production and assembly, bearing clearance must be checked using a bearing clearance testing device. Currently, when detecting bearing clearance, it is impossible to stably position the bearing, requiring staff to constantly adjust its position, which affects the efficiency and accuracy of bearing clearance detection. Utility Model Content

[0003] The purpose of this application is to provide a bearing clearance detection device that can quickly and stably position the bearing without requiring constant adjustments by operators, thus improving the efficiency and accuracy of bearing clearance detection. This solves the problem that current bearing clearance detection methods cannot stably position the bearing, requiring constant adjustments by operators, which affects the efficiency and accuracy of bearing clearance detection.

[0004] The bearing clearance detection device provided in this application adopts the following technical solution: A bearing clearance detection device includes a detection platform, on which three positioning rods are provided, arranged in a circular array. A dial indicator is provided above the detection platform, located on one side of the three positioning rods. Three holding rods are provided above the three positioning rods, and the three holding rods are mounted on the bottom of a fixed frame via a fixing plate. The three holding rods are arranged in a circular array. The fixed frame is located at one end of a cylinder, and the other end of the cylinder is mounted on the top of the detection platform via a support frame. The center points of the arrays of the three positioning rods and the three holding rods are located on the same vertical line, and the three positioning rods and the three holding rods are staggered.

[0005] By adopting the above technical solution, the inner ring of the bearing is fitted onto the outside of the three positioning rods, so that the outer sides of the three positioning rods cooperate with each other to abut against the inner wall of the bearing inner ring, fixing the bearing's placement position. When the cylinder works, it pushes the three holding rods downward to press the inner ring of the bearing, which, together with the three positioning rods, fixes the bearing's position. This achieves rapid and stable positioning of the bearing, eliminating the need for operators to constantly adjust the bearing's position, and improving the efficiency and accuracy of bearing clearance detection.

[0006] Preferably, the bottom ends of the three positioning rods are hinged to three swing rods via three hinge frames. The ends of the three swing rods away from the positioning rods are all hinged to the top of the connecting plate via hinge frames. The three swing rods are arranged in a circular array.

[0007] By adopting the above technical solution, the movement of the connecting plate can drive the three swing rods to swing with the same amplitude, so that the three swing rods drive the three positioning rods to move with the same amplitude when swinging. The distance between the three positioning rods can be adjusted according to the size of the bearing inner ring, so that the distance between the three positioning rods can be adapted to bearings with different inner ring sizes.

[0008] Preferably, a threaded rod is threadedly connected to the inner wall of the middle part of the connecting plate, one end of the threaded rod is rotatably disposed at the bottom of the testing table, and the other end of the threaded rod is provided with a screwdriver.

[0009] By adopting the above technical solution, the rotation of the threaded rod can accurately and stably drive the connecting plate to move. The height of the connecting plate can be easily adjusted in conjunction with the three swing rods to adjust the distance between the three positioning rods. After adjusting the height of the connecting plate, the height of the connecting plate can be fixed to prevent it from changing arbitrarily. This fixes the distance between the three positioning rods, improving the stability of the positioning rod position adjustment. The screwing head allows for easy operation of the screwing head to screw the threaded rod.

[0010] Preferably, the pressure rod is inclined, and the height of one end of the pressure rod near the center point of the array is lower than the height of the other end.

[0011] By adopting the above technical solution, the inclined setting of the holding rod allows the holding rod to hold and fix bearings with different inner ring sizes. The inclined setting of the holding rod can avoid pressing on the outer ring of the bearing and affecting the rotation of the outer ring. At the same time, by pressing the top edge of the bearing inner ring with three inclined holding rods, the inner ring of the bearing can be further centered with the three positioning rods, ensuring the centering and fixing of the bearing.

[0012] Preferably, a support block is provided on the side of the positioning rod away from its array center point.

[0013] By adopting the above technical solution, the support block can support the inner ring of the bearing independently, and a certain gap can be made between the bearing and the test table surface, so as to prevent the outer ring of the bearing from being tightly attached to the table surface and affecting the rotation of the outer ring when testing the bearing clearance.

[0014] Preferably, the top of the testing platform is provided with three sliding grooves according to the position and movement trajectory of the three positioning rods. The positioning rods are provided with limiting grooves that are in the same direction as the sliding grooves and penetrate the positioning rods. The sliding grooves are provided with limiting rods inside. The two ends of the limiting rods are set at the two ends of the inner wall of the middle part of the sliding grooves. The limiting grooves are slidably set on the outer surface of the middle part of the limiting rods.

[0015] By adopting the above technical solution, the angle of the positioning rod can be fixed when it moves by sliding the limiting groove on the outer surface of the middle part of the limiting rod, thereby improving the stability of the positioning rod moving when the swing rod swings, avoiding the positioning rod from deviating or rotating during the movement, and ensuring the accuracy and stability of the positioning rod movement.

[0016] Preferably, a guide rod is provided at the top of the positioning rod, and the top end of the guide rod is inclined toward the center point of the array of three positioning rods.

[0017] By adopting the above technical solution, the top of the guide rod is tilted towards the center point of the array of three positioning rods. When placing the bearing, it can guide the inner ring of the bearing, making it easier for the staff to quickly and accurately put the bearing on the outside of the three positioning rods. This reduces the difficulty and time of placing the bearing and improves the efficiency of the inspection work.

[0018] Preferably, the dial indicator is mounted on one end of the slider via a support frame, and the outer surface of the other end of the slider is slidably disposed within the inner wall of the middle section of the slide frame. An adjusting screw is threadedly connected to the inner wall of the middle section of the slider, and one end of the adjusting screw is rotatably disposed at one end of the inner wall of the middle section of the slide frame.

[0019] By adopting the above technical solution, rotating the adjusting screw can drive the slider to slide within the inner wall of the middle of the slide frame, thereby causing the slider to move the dial indicator. The cooperation between the adjusting screw and the slider allows the staff to adjust and fix the position of the dial indicator according to the testing requirements, and can also fix the movement trajectory of the dial indicator, improving the stability of the dial indicator when it moves.

[0020] In summary, this application includes at least one of the following beneficial technical effects: This bearing clearance detection device uses three positioning rods to fit the inner ring of the bearing onto the outside of the bearing inner ring. The outer sides of the three positioning rods cooperate to abut against the inner wall of the bearing inner ring, fixing the bearing's position. When a cylinder operates, it pushes three pressing rods downward to press the bearing inner ring, thus fixing the bearing's position in conjunction with the three positioning rods. This achieves rapid and stable bearing positioning without the need for constant adjustments by operators, improving the efficiency and accuracy of bearing clearance detection. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of this application; Figure 2 This is a schematic diagram of the front structure of this application; Figure 3 This is a schematic diagram of the structure on the right side of this application; Figure 4 This is a schematic diagram showing the positional distribution of the positioning rod and the holding rod in this application; Figure 5 This is a schematic diagram of the connection structure between the swing rod and the connecting plate in this application; Figure 6 This is a front sectional view of the sliding frame of this application.

[0022] In the picture: 1. Testing table; 2. Positioning rod; 3. Cylinder; 4. Fixing frame; 5. Holding rod; 6. Support block; 7. Swing rod; 8. Connecting plate; 9. Threaded rod; 10. Slide groove; 11. Limiting rod; 12. Limiting groove; 13. Guide rod; 14. Dial indicator; 15. Slider; 16. Slide frame; 17. Tightening head; 18. Adjusting screw. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1 -Appendix Figure 6 This application will be described in further detail below.

[0024] Example 1: A bearing clearance detection device, please refer to... Figure 1 , Figure 2 and Figure 4 The system includes a testing platform 1, on which are three positioning rods 2 arranged in a circular array. A dial indicator 14 is located above the testing platform 1, on one side of the three positioning rods 2. Above the three positioning rods 2 are three holding rods 5, which are mounted on the bottom of a fixing frame 4 via a fixing plate. The three holding rods 5 are arranged in a circular array. The fixing frame 4 is located at one end of a cylinder 3, and the other end of the cylinder 3 is mounted on the top of the testing platform 1 via a support frame. The center points of the arrays of the three positioning rods 2 and the three holding rods 5 are located on the same vertical line, and the three positioning rods 2 and the three holding rods 5 are staggered.

[0025] A support block 6 is provided on the side of the positioning rod 2 away from its array center point. The support block 6 can support the inner ring of the bearing independently, so that there is a certain gap between the bearing and the test table 1, and the outer ring of the bearing will not be pressed tightly against the table surface, which will affect the rotation of the outer ring when the bearing gap is detected.

[0026] The top of the testing platform 1 has three grooves 10 according to the position and movement trajectory of the three positioning rods 2. The positioning rods 2 have limiting grooves 12 that are in the same direction as the grooves 10 and pass through the positioning rods 2. The grooves 10 have limiting rods 11 inside. The two ends of the limiting rods 11 are set at the two ends of the inner wall of the middle part of the grooves 10. The limiting grooves 12 are slidably set on the outer surface of the middle part of the limiting rods 11. By sliding the limiting grooves 12 on the outer surface of the middle part of the limiting rods 11, the angle of the positioning rods 2 when they move can be fixed, which improves the stability of the positioning rods 2 when the swing rods 7 swings, avoids the positioning rods 2 from deviating or rotating during the movement, and ensures the accuracy and stability of the movement of the positioning rods 2.

[0027] A guide rod 13 is provided at the top of the positioning rod 2. The top of the guide rod 13 is inclined towards the center point of the array of three positioning rods 2. When placing the bearing, the guide rod 13 can guide the inner ring of the bearing, making it easier for the staff to quickly and accurately put the bearing on the outside of the three positioning rods 2. This reduces the difficulty and time of placing the bearing and improves the efficiency of the inspection work.

[0028] The dial indicator is mounted on one end of the slider via a support frame. The outer surface of the other end of the slider is slidably mounted on the inner wall of the middle section of the slide frame. An adjusting screw 18 is threadedly connected to the inner wall of the middle section of the slider 15. One end of the adjusting screw 18 is rotatably mounted on one end of the inner wall of the middle section of the slide frame 16. By rotating the adjusting screw 18, the slider 15 can be driven to slide within the inner wall of the middle section of the slide frame 16, thereby causing the slider 15 to move the dial indicator 14. The cooperation between the adjusting screw 18 and the slider 15 allows the operator to easily adjust and fix the position of the dial indicator 14 according to the testing requirements, and can also fix the movement trajectory of the dial indicator 14, improving the stability of the dial indicator 14 during movement.

[0029] Example 2: A bearing clearance detection device, please refer to... Figure 3 , Figure 4 and Figure 5 The bottom ends of the three positioning rods 2 are hinged to three swing rods 7 via three hinge frames. The ends of the three swing rods 7 away from the positioning rods 2 are all hinged to the top of the connecting plate 8 via the hinge frames. The three swing rods 7 are arranged in a circular array. The movement of the connecting plate 8 can drive the three swing rods 7 to swing with the same amplitude, so that the three swing rods 7 drive the three positioning rods 2 to move with the same amplitude when swinging. The spacing between the three positioning rods 2 can be adjusted according to the size of the bearing inner ring, so that the spacing between the three positioning rods 2 can be adapted to bearings with different inner ring sizes.

[0030] A threaded rod 9 is threadedly connected to the inner wall of the middle part of the connecting plate 8. One end of the threaded rod 9 is rotatably set at the bottom of the testing table 1, and the other end of the threaded rod 9 is provided with a screw head 17. By rotating the threaded rod 9, the connecting plate 8 can be moved accurately and stably. The height of the connecting plate 8 can be easily adjusted in conjunction with the three swing rods 7 to adjust the distance between the three positioning rods 2. After the height of the connecting plate 8 is adjusted, the height of the connecting plate 8 can be fixed to prevent the height of the connecting plate 8 from changing arbitrarily. This can fix the distance between the three positioning rods 2 and improve the stability of the position adjustment of the positioning rods 2. The screw head 17 is provided to facilitate the operation of the screw head 17 to screw the threaded rod 9.

[0031] The holding rod 5 is inclined, with the height of one end of the holding rod 5 near the center point of the array being lower than the height of the other end. The inclined setting of the holding rod 5 allows it to hold and fix bearings with different inner ring sizes. The inclined setting of the holding rod 5 can also prevent it from pressing on the outer ring of the bearing and affecting its rotation. At the same time, by pressing the top edge of the bearing inner ring with three inclined holding rods 5, it can work with the three positioning rods 2 to further center the inner ring of the bearing, ensuring the centering and fixing of the bearing.

[0032] The implementation principle of this application embodiment is as follows: Based on the inner diameter of the bearing to be tested, the screwing head 17 is turned to drive the threaded rod 9 to rotate. The rotation of the threaded rod 9 causes the connecting plate 8 to move along its axial direction. Adjusting the height of the connecting plate 8 causes the three swing rods 7 to swing with the same amplitude. The swinging of the three swing rods 7 causes the three positioning rods 2 to move with the same amplitude. The spacing between the three positioning rods 2 is adjusted to adapt to the inner diameter of the bearing to be tested. The inner ring of the bearing is then fitted onto the outside of the three positioning rods 2. When the inner ring of the bearing is fitted onto the outside of the three positioning rods 2, the inner ring of the bearing contacts the inclined guide rod 13. The bottom edge of the inner ring of the bearing slides on the outer surface of the guide rod 13. The guide rod 13 guides the inner ring of the bearing to fit onto the three positioning rods 2. Place the bottom of the bearing inner ring on the support block 6. The cylinder 3 operates, driving the fixing frame 4 to move downwards. The fixing frame 4 drives the holding rod 5 to press against the top of the bearing inner ring, so that the holding rod 5, together with the positioning rod 2, fixes the position of the bearing. Rotate the adjusting screw 18, causing the slider 15 to slide within the inner wall of the middle of the slide frame 16. The slider 15 drives the dial indicator 14 to move towards the bearing until the pin of the dial indicator 14 touches the outer ring of the bearing. Push the outer ring of the bearing and observe the change of the dial indicator 14. Rotate the outer ring of the bearing and push the outer ring of the bearing again, observing the change of the dial indicator 14 to determine whether the bearing clearance is within the acceptable range.

[0033] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A bearing clearance detection device comprising a detection station (1), characterised in that: The testing platform (1) is provided with three positioning rods (2), which are arranged in a circular array. A dial indicator (14) is provided above the testing platform (1), which is located on one side of the three positioning rods (2). Three holding rods (5) are provided above the three positioning rods (2). The three holding rods (5) are set at the bottom of the fixing frame (4) by a fixing plate. The three holding rods (5) are arranged in a circular array. The fixing frame (4) is set at one end of the cylinder (3). The other end of the cylinder (3) is set at the top of the testing platform (1) by a support frame. The center point of the array of the three positioning rods (2) and the three holding rods (5) is located on the same vertical line. The three positioning rods (2) and the three holding rods (5) are staggered.

2. A bearing clearance detection device according to claim 1, characterised in that: The bottom ends of the three positioning rods (2) are hinged to three swing rods (7) by three hinge frames. The ends of the three swing rods (7) away from the positioning rods (2) are all hinged to the top of the connecting plate (8) by the hinge frames. The three swing rods (7) are arranged in a ring array.

3. A bearing clearance detection device according to claim 2, characterised in that: The connecting plate (8) has a threaded rod (9) threadedly connected to the inner wall of the middle part. One end of the threaded rod (9) is rotatably set at the bottom of the testing table (1), and the other end of the threaded rod (9) is provided with a screw head (17).

4. A bearing clearance detection device according to claim 1, characterized in that: The pressure rod (5) is inclined, and the height of one end of the pressure rod (5) near the center point of the array is lower than the height of the other end.

5. A bearing clearance detection device according to claim 1, wherein: The positioning rod (2) has a support block (6) on the side away from its array center point.

6. A bearing clearance detection device according to claim 1, wherein: The top of the testing platform (1) is provided with three sliding grooves (10) according to the position and movement trajectory of the three positioning rods (2). The positioning rods (2) are provided with limiting grooves (12) that are in the same direction as the sliding grooves (10) and penetrate the positioning rods (2). The sliding grooves (10) are provided with limiting rods (11). The two ends of the limiting rods (11) are set at the two ends of the inner wall of the middle part of the sliding grooves (10). The limiting grooves (12) are slidably set on the outer surface of the middle part of the limiting rods (11).

7. A bearing clearance detection device according to claim 1, wherein: The top of the positioning rod (2) is provided with a guide rod (13), and the top of the guide rod (13) is inclined toward the center point of the array of three positioning rods (2).

8. A bearing clearance detection device according to claim 1, characterized in that: The dial indicator (14) is mounted on one end of the slider (15) via a support frame. The outer surface of the other end of the slider (15) is slidably mounted on the inner wall of the middle part of the slide frame (16). An adjusting screw (18) is threadedly connected to the inner wall of the middle part of the slider (15). One end of the adjusting screw (18) is rotatably mounted on one end of the inner wall of the middle part of the slide frame (16).

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