Bearing axial clearance detection mechanism

Abstract

The utility model discloses a bearing axial clearance detection mechanism, which comprises a detection base, a lifting assembly, a pressure applying assembly and a detection part, a bearing table is arranged on the detection base, the bearing table is used for bearing an outer ring of a bearing to be detected, a notch is formed in the bearing table, and the lifting assembly extends into the notch and abuts against the bottom of an inner ring. The pressing assembly comprises a first driving piece and a pressing piece, a pressing protrusion is arranged at the bottom end of the pressing piece, the first driving piece is used for driving the pressing piece to rise to a high position or a low position, and the first driving piece drives the pressing piece to the low position, so that the pressing piece abuts against the upper end face of the outer ring and pushes the inner ring on the upper end face of the inner ring in cooperation with the pressing protrusion; and the detection part is used for performing axial clearance detection on the to-be-detected bearing when the pressing bulge pushes the inner ring. According to the bearing axial clearance detection mechanism, through cooperation of the lifting assembly, the pressure applying assembly and the detection part, bearing axial clearance detection is achieved, the detection mode is convenient and fast, the structure is simple, the detection efficiency is high, and the detection precision is high.

Description

Technical Field

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

[0002] In various mechanical equipment, such as motors, machine tools, and automotive transmission systems, the performance of bearings directly affects the overall stability and reliability of the equipment. Axial clearance is one of the key parameters of bearings, significantly influencing their operating accuracy, load-bearing capacity, friction loss, and service life. For example, excessive clearance can cause significant axial movement of the bearing during operation, affecting the accuracy of the equipment; insufficient clearance may cause the bearing to seize due to frictional heat during operation, reducing its service life. Therefore, appropriate axial clearance ensures that the bearing can operate normally under different working conditions, reducing equipment failures and improving the operating efficiency and stability of the equipment.

[0003] Traditional methods for detecting axial clearance mostly rely on manual inspection. This method is not only time-consuming and labor-intensive with low inspection efficiency, but it is also easily affected by human factors, resulting in large inspection errors. Obviously, it suffers from problems of low inspection efficiency and low inspection accuracy. Utility Model Content

[0004] The purpose of this invention is to provide a bearing axial clearance detection mechanism to solve the problem of low detection accuracy in conventional manual inspection in the prior art.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A bearing axial clearance detection mechanism includes a detection base, a lifting assembly, a pressure application assembly, and a detection component, wherein:

[0007] The testing base is provided with a support platform, which is configured to support the outer ring of the bearing to be tested placed horizontally. The support platform has a notch, which is located in the orthographic projection area of ​​the inner ring of the bearing to be tested on the support platform. The lifting assembly is provided on the testing base and located directly below the notch. The first end of the lifting assembly extends into the notch and abuts against the bottom of the inner ring. The testing component is provided at the second end of the lifting assembly.

[0008] The pressure-applying assembly is disposed on the detection base and located above the support platform. The pressure-applying assembly includes a first driving member and a pressure-applying member. The bottom end of the pressure-applying member extends downward with multiple pressure-applying protrusions, which are located directly above the inner ring. The pressure-applying member is movably disposed on the detection base. The driving end of the first driving member is connected to the pressure-applying member. The first driving member is configured to drive the pressure-applying member to a high position or a low position. When the first driving member drives the pressure-applying member to a low position, the pressure-applying member abuts against the upper end face of the outer ring, thereby cooperating with the multiple pressure-applying protrusions to push the inner ring against the upper end face of the inner ring. The detection component is configured to perform axial clearance detection on the bearing to be tested when the multiple pressure-applying protrusions push the inner ring.

[0009] Furthermore, the first driving component includes a first cylinder, a lifting component, and a pressure regulating unit, wherein:

[0010] The lifting component is movably mounted on the detection base. The pressure-applying component is installed at the bottom end of the lifting component. The fixed end of the first cylinder is installed on the detection base. The driving end of the first cylinder is connected to the lifting component. The first cylinder is configured to drive the lifting component to a high or low position so as to move the pressure-applying component closer to or away from the support platform.

[0011] The first cylinder drives the lifting member to a low position, so that the pressure applying member presses down and abuts against the upper end face of the outer ring. The pressure regulating unit is mounted on the lifting member and is configured to apply downward pressure to the pressure applying member when the lifting member is in the low position, thereby cooperating with the plurality of pressure applying protrusions to push the inner ring against the upper end face of the inner ring.

[0012] Furthermore, the pressure regulating unit includes a first hinge rod, a second driving member, and a pressure regulating frame. The middle part of the first hinge rod is hinged to the detection base, and the first end of the first hinge rod along its length is hinged to the pressure regulating frame. The pressure regulating frame is mounted on the lifting member. The fixed end of the second driving member is mounted on the detection base, and the driving end of the second driving member is connected to the second end of the first hinge rod along its length. The second driving member is at least configured to drive the second end of the first hinge rod along its length to rise, thereby causing the first end of the first hinge rod along its length to fall and abut against the pressure regulating frame.

[0013] Furthermore, a first counterweight is installed at the second end of the first hinge rod along its length direction. The first counterweight is configured to prevent the first end of the first hinge rod along its length direction from pressing against the lifting member when the lifting member is in a high position.

[0014] Furthermore, the lifting assembly includes a second hinged rod, a support member, and a second counterweight, wherein:

[0015] The middle part of the second hinge rod is hinged to the detection base. The support is installed at one end of the second hinge rod and is vertically and elliptically disposed at the bottom of the inner ring. The support is at least configured to support the inner ring. The second counterweight is installed on the other end of the second hinge rod relative to the support. The second counterweight is configured to rely on its own weight to make the upper surface of the support abut against the bottom of the inner ring.

[0016] Furthermore, the detection component includes a mounting bracket and a displacement sensor. The mounting bracket is mounted on the detection base and located below the support platform. The bottom of the displacement sensor is mounted on the mounting bracket, and the top of the displacement sensor abuts against the bottom of the support member. The displacement sensor is configured to detect the displacement of the support member, thereby performing axial clearance detection on the bearing to be tested.

[0017] Furthermore, the pressure application assembly also includes a guide assembly, which includes two vertically arranged guide rods. The first ends of the two guide rods are both mounted on the mounting plate, and the second ends of the two guide rods are both connected to the lifting component. The driving end of the first cylinder is fixedly connected to the middle of the mounting plate. The first cylinder is configured to drive the mounting plate to lift and lower, so as to drive the lifting component to lift and lower through the two guide rods.

[0018] Furthermore, a guide platform extends from the detection base toward the guide rod, and two guide holes are formed on the guide platform. Each guide hole corresponds to one guide rod, and each guide rod passes through the corresponding guide hole. Each guide rod is provided with a guide sleeve, the top of which is installed at the bottom of the guide platform, and the bottom of which extends toward the lifting component.

[0019] Furthermore, the second driving component is a driving cylinder.

[0020] Furthermore, the bottom of the pressure regulating frame is detachably mounted on the lifting component via multiple detachable parts. The top of the pressure regulating frame has two hinged portions extending upward on both sides of the first end of the first hinge rod. Both hinged portions have hinged holes. The first hinge rod has a through hole at the same height as the hinged holes. The hinge rod passes through the two hinged holes and the through hole between the two hinged holes, so that the first end of the first hinge rod is hingedly connected to the top of the pressure regulating frame.

[0021] Compared with existing technologies, the beneficial effects of the bearing axial clearance detection mechanism are as follows:

[0022] 1) Through the cooperation of the lifting component, the pressure application component and the detection component, the lifting component extends into the notch and abuts against the bottom of the inner ring. The first driving component drives the pressure application component to a low position, so that the pressure application component abuts against the upper end face of the outer ring. Then, in conjunction with multiple pressure application protrusions, the inner ring is pushed on the upper end face of the inner ring. When the multiple pressure application protrusions push the inner ring, the detection component performs axial clearance detection on the bearing to be tested. This method is not only convenient and simple in structure, but also has high detection efficiency and high detection accuracy.

[0023] 2) By installing the pressure regulating unit on the lifting component, downward pressure is applied to the pressure applying component when the lifting component is in a low position. This not only enables the contact pressure action, but also allows for effective adjustment of the pressure applied, ensuring that the force applied to the inner ring of the bearing is appropriate and stable, thereby improving the accuracy of bearing axial clearance detection. Attached Figure Description

[0024] To more clearly illustrate and understand the technical solutions in the embodiments of this utility model, the accompanying drawings used in the background technology and embodiment description of this utility model will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional structural schematic diagram of the bearing axial clearance detection mechanism provided in this embodiment of the utility model;

[0026] Figure 2 This is a front view schematic diagram of the bearing axial clearance detection mechanism provided in this embodiment of the utility model;

[0027] Figure 3 yes Figure 1 Enlarged diagram of point A in the middle. Detailed Implementation

[0028] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0029] To facilitate understanding of this utility model, a more complete description of it will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model. It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there may be an intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of this utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] Please see Figures 1 to 3 As shown, in this embodiment, a bearing axial clearance detection mechanism includes a detection base 10, a lifting assembly 20, a pressure application assembly 30, and a detection component 40. The detection base 10 has a support platform 11 configured to support the outer ring 51 of a horizontally placed bearing 50 to be tested. The support platform 11 has a notch located at the orthographic projection area of ​​the inner ring 52 of the bearing 50 onto the support platform 11. The lifting assembly 20 is disposed on the detection base 10 and located directly below the notch. The first end of the lifting assembly 20 extends into the notch and abuts against the bottom of the inner ring 52. The detection component 40 is disposed at the second end of the lifting assembly 20. The pressure application assembly 30 is disposed on the detection base 10 and located above the support platform 11. The pressure application component 30 includes a first driving member 31 and a pressure application member 32. The bottom end of the pressure application member 32 extends downward with multiple pressure application protrusions 320, which are located directly above the inner ring 52. The pressure application member 32 is movably mounted on the detection base 10. The driving end of the first driving member 31 is connected to the pressure application member 32. The first driving member 31 is configured to drive the pressure application member 32 to a high position or a low position. When the first driving member 31 drives the pressure application member 32 to a low position, the pressure application member 32 abuts against the upper end face of the outer ring 51, thereby cooperating with the multiple pressure application protrusions 320 to push the inner ring 52 on the upper end face of the inner ring 52. The detection component 40 is configured to perform axial clearance detection on the bearing 50 to be tested when the multiple pressure application protrusions 320 push the inner ring 52.

[0031] As can be seen, through the cooperation of the lifting component 20, the pressure application component 30 and the detection component 40, the lifting component 20 extends into the notch and abuts against the bottom of the inner ring 52. The first driving component 31 drives the pressure application component 32 to the low position, so that the pressure application component 32 abuts against the upper end face of the outer ring 51. Then, in conjunction with multiple pressure application protrusions 320, the inner ring 52 is pushed on the upper end face of the inner ring 52. When the multiple pressure application protrusions 320 push the inner ring 52, the detection component 40 performs axial clearance detection on the bearing 50 to be tested. The detection method is not only convenient and the structure is simple, but also the detection efficiency and detection accuracy are high.

[0032] In one embodiment, the first driving member 31 includes a first cylinder 310, a lifting member 311, and a pressure regulating unit, wherein: the lifting member 311 is movably mounted on the detection base 10, the pressure applying member 32 is mounted on the bottom end of the lifting member 311, the fixed end of the first cylinder 310 is mounted on the detection base 10, the driving end of the first cylinder 310 is connected to the lifting member 311, and the first cylinder 310 is configured to drive the lifting member 311 to a high position or a low position, so as to drive the pressure applying member 32 closer to or away from the support platform 11; the first cylinder 310 drives the lifting member 311 to a low position, so that the pressure applying member 32 presses down and abuts against the upper end surface of the outer ring 51, and the pressure regulating unit is mounted on the lifting member 311. The pressure regulating unit is configured to apply downward pressure to the pressure applying member 32 when the lifting member 311 is in a low position, thereby cooperating with multiple pressure applying protrusions 320 to push the inner ring 52 on the upper end surface of the inner ring 52.

[0033] It can be seen that by installing the pressure regulating unit on the lifting component 311, downward pressure is applied to the pressure applying component 32 when the lifting component 311 is in a low position. This not only enables the contact pressure action, but also allows for effective adjustment of the pressure applied, ensuring that the force applied to the inner ring 52 of the bearing is appropriate and stable, thereby improving the accuracy of bearing axial clearance detection.

[0034] In one embodiment, the pressure regulating unit includes a first hinge rod 312, a second driving member 313, and a pressure regulating frame 314. The middle part of the first hinge rod 312 is hinged to the detection base 10, and the first end of the first hinge rod 312 along the length direction is hinged to the pressure regulating frame 314. The pressure regulating frame 314 is mounted on the lifting member 311. The fixed end of the second driving member 313 is mounted on the detection base 10, and the driving end of the second driving member 313 is connected to the second end of the first hinge rod 312 along the length direction. The second driving member 313 is at least configured to drive the second end of the first hinge rod 312 along the length direction to rise, so as to drive the first end of the first hinge rod 312 along the length direction to fall and abut against the pressure regulating frame 314.

[0035] In one embodiment, a first counterweight 33 is installed at the second end of the first hinge rod 312 along the length direction. The first counterweight 33 is configured to prevent the first end of the first hinge rod 312 along the length direction from pressing against the lifting member 311 when the lifting member 311 is in a high position.

[0036] In one embodiment, the lifting assembly 20 includes a second hinge rod 21, a support member 22, and a second counterweight 23, wherein: the middle part of the second hinge rod 21 is hinged to the detection base 10; the support member 22 is installed at one end of the second hinge rod 21 and is vertically and flexibly disposed at the bottom of the inner ring 52; the support member 22 is at least configured to support the inner ring 52; the second counterweight 23 is installed on the other end of the second hinge rod 21 relative to the support member 22; the second counterweight 23 is configured to rely on its own weight to make the upper end surface of the support member 22 abut against the bottom of the inner ring 52.

[0037] In one embodiment, the detection component 40 includes a mounting bracket 41 and a displacement sensor 42. The mounting bracket 41 is mounted on the detection base 10 and located below the support platform 11. The bottom of the displacement sensor 42 is mounted on the mounting bracket 41, and the top of the displacement sensor 42 abuts against the bottom of the support member 22. The displacement sensor 42 is configured to detect the displacement of the support member 22, thereby performing axial clearance detection on the bearing 50 to be tested.

[0038] In one embodiment, the pressure application assembly 30 also includes a guide assembly, which includes two vertically arranged guide rods 34. The first ends of the two guide rods 34 are both mounted on the mounting plate 35, and the second ends of the two guide rods 34 are both connected to the lifting member 311. The driving end of the first cylinder 310 is fixedly connected to the middle of the mounting plate 35. The first cylinder 310 is configured to drive the mounting plate 35 to rise and fall, so as to drive the lifting member 311 to rise and fall through the two guide rods 34.

[0039] In one embodiment, a guide platform 12 extends from the side of the detection base 10 toward the guide rod 34. Two guide holes are provided on the guide platform 12, each guide hole corresponding to a guide rod 34. Each guide rod 34 passes through the corresponding guide hole, and each guide rod 34 is provided with a guide sleeve 36. The top end of the guide sleeve 36 is installed at the bottom of the guide platform 12, and the bottom end of the guide sleeve 36 extends toward the lifting member 311.

[0040] In one implementation, the second drive component 313 is a drive cylinder.

[0041] Specifically, the first drive unit 31 and the second drive unit 313 may also be a motor or other linear modules with similar functions.

[0042] In one embodiment, the bottom of the pressure regulating frame 314 is detachably mounted on the lifting member 311 via multiple detachable parts. The top of the pressure regulating frame 314 has two hinged portions extending upward on both sides of the first end of the first hinge rod 312. Both hinged portions have hinge holes 315. The first hinge rod has a through hole at the same height as the hinge hole 315. The hinge rod passes through the two hinge holes 315 and the through hole between the two hinge holes 315, so that the first end of the first hinge rod 312 is hingedly connected to the top of the pressure regulating frame 314.

[0043] During the testing process of the aforementioned bearing axial clearance detection mechanism: First, the bearing 50 to be tested is placed on the support platform 11 by a person or a robot, with the outer ring 51 facing the support platform 11. Second, the second counterweight 23 uses its own weight to make the upper end face of the support member 22 abut against the bottom of the inner ring 52. Then, the first drive member 31 drives the lifting member 311 to a low position, causing the pressure member 32 to press down and abut against the upper end face of the outer ring 51. The second drive member 313 drives the second end of the first hinge rod 312 to rise along the length direction, causing the first end of the first hinge rod 312 to fall along the length direction and abut against the pressure adjusting frame 314, applying downward pressure to the pressure member 32. In conjunction with multiple pressure protrusions 320, the inner ring 52 is pushed against the upper end face of the inner ring 52. Finally, the detection component 40 senses the movement stroke of the inner ring 52 and transmits the signal to the computer, which is then observed by the staff to determine whether the axial clearance of the bearing 50 to be tested is qualified.

[0044] The above embodiments merely illustrate the basic principles and characteristics of this utility model. This utility model is not limited to the above examples. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A bearing axial clearance detection mechanism, characterized in that, The bearing axial clearance detection mechanism includes a detection base, a lifting assembly, a pressure application assembly, and a detection component, wherein: The testing base is provided with a support platform, which is configured to support the outer ring of the bearing to be tested placed horizontally. The support platform has a notch, which is located in the orthographic projection area of ​​the inner ring of the bearing to be tested on the support platform. The lifting assembly is provided on the testing base and located directly below the notch. The first end of the lifting assembly extends into the notch and abuts against the bottom of the inner ring. The testing component is provided at the second end of the lifting assembly. The pressure-applying assembly is disposed on the detection base and located above the support platform. The pressure-applying assembly includes a first driving member and a pressure-applying member. The bottom end of the pressure-applying member extends downward with multiple pressure-applying protrusions, which are located directly above the inner ring. The pressure-applying member is movably disposed on the detection base. The driving end of the first driving member is connected to the pressure-applying member. The first driving member is configured to drive the pressure-applying member to a high position or a low position. When the first driving member drives the pressure-applying member to a low position, the pressure-applying member abuts against the upper end face of the outer ring, thereby cooperating with the multiple pressure-applying protrusions to push the inner ring against the upper end face of the inner ring. The detection component is configured to perform axial clearance detection on the bearing to be tested when the multiple pressure-applying protrusions push the inner ring.

2. The bearing axial clearance detection mechanism according to claim 1, characterized in that, The first driving component includes a first cylinder, a lifting component, and a pressure regulating unit, wherein: The lifting component is movably mounted on the detection base. The pressure-applying component is installed at the bottom end of the lifting component. The fixed end of the first cylinder is installed on the detection base. The driving end of the first cylinder is connected to the lifting component. The first cylinder is configured to drive the lifting component to a high or low position so as to move the pressure-applying component closer to or away from the support platform. The first cylinder drives the lifting member to a low position, so that the pressure applying member presses down and abuts against the upper end face of the outer ring. The pressure regulating unit is mounted on the lifting member and is configured to apply downward pressure to the pressure applying member when the lifting member is in the low position, thereby cooperating with the plurality of pressure applying protrusions to push the inner ring against the upper end face of the inner ring.

3. The bearing axial clearance detection mechanism according to claim 2, characterized in that, The pressure regulating unit includes a first hinge rod, a second driving member, and a pressure regulating frame. The middle part of the first hinge rod is hinged to the detection base, and the first end of the first hinge rod along its length is hinged to the pressure regulating frame. The pressure regulating frame is mounted on the lifting member. The fixed end of the second driving member is mounted on the detection base, and the driving end of the second driving member is connected to the second end of the first hinge rod along its length. The second driving member is at least configured to drive the second end of the first hinge rod along its length to rise, so as to drive the first end of the first hinge rod along its length to fall and abut against the pressure regulating frame.

4. The bearing axial clearance detection mechanism according to claim 3, characterized in that, A first counterweight is installed at the second end of the first hinge rod along its length direction. The first counterweight is configured to prevent the first end of the first hinge rod along its length direction from pressing against the lifting member when the lifting member is in a high position.

5. The bearing axial clearance detection mechanism according to claim 1, characterized in that, The lifting assembly includes a second hinged rod, a support member, and a second counterweight, wherein: The middle part of the second hinge rod is hinged to the detection base. The support is installed at one end of the second hinge rod and is vertically and elliptically disposed at the bottom of the inner ring. The support is at least configured to support the inner ring. The second counterweight is installed on the other end of the second hinge rod relative to the support. The second counterweight is configured to rely on its own weight to make the upper surface of the support abut against the bottom of the inner ring.

6. The bearing axial clearance detection mechanism according to claim 5, characterized in that, The detection component includes a mounting bracket and a displacement sensor. The mounting bracket is mounted on the detection base and located below the support platform. The bottom of the displacement sensor is mounted on the mounting bracket, and the top of the displacement sensor abuts against the bottom of the support member. The displacement sensor is configured to detect the displacement of the support member, thereby performing axial clearance detection on the bearing to be tested.

7. The bearing axial clearance detection mechanism according to claim 2, characterized in that, The pressure application assembly also includes a guide assembly, which includes two vertically arranged guide rods. The first ends of the two guide rods are mounted on the mounting plate, and the second ends of the two guide rods are connected to the lifting component. The drive end of the first cylinder is fixedly connected to the middle of the mounting plate. The first cylinder is configured to drive the mounting plate to lift, so as to drive the lifting component to lift via the two guide rods.

8. The bearing axial clearance detection mechanism according to claim 7, characterized in that, A guide platform extends from the detection base toward the guide rod. Two guide holes are provided on the guide platform, each guide hole corresponding to one guide rod. Each guide rod passes through the corresponding guide hole and is provided with a guide sleeve. The top end of the guide sleeve is installed at the bottom of the guide platform, and the bottom end of the guide sleeve extends toward the lifting component.

9. The bearing axial clearance detection mechanism according to claim 3, characterized in that, The second driving component is a driving cylinder.

10. The bearing axial clearance detection mechanism according to claim 3, characterized in that, The bottom of the pressure regulating frame is detachably mounted on the lifting component via multiple detachable parts. The top of the pressure regulating frame has two hinged portions extending upward on both sides of the first end of the first hinge rod. Both hinged portions have hinged holes. The first hinge rod has a through hole at the same height as the hinged hole. The hinge rod passes through the two hinged holes and the through hole between the two hinged holes, so that the first end of the first hinge rod is hingedly connected to the top of the pressure regulating frame.

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