A bearing preload spring support force measuring device

Abstract

This utility model discloses a bearing preload spring support force measuring device, comprising: a bearing housing structure, one end face of which has a plurality of inner holes spaced apart; springs, arranged one-to-one in the inner holes, with one end of the springs protruding from the inner holes; a pressure sensor structure connected to the other end of the bearing housing structure; a first outer sleeve fitted onto the bearing housing structure and pressing down on the springs; a second outer sleeve surrounding the pressure sensor structure and spaced apart from the first outer sleeve; and a plurality of adjusting screws connecting the second outer sleeve and the first outer sleeve; thereby overcoming the technical problem that the spring preload support force cannot be accurately measured, affecting the bearing installation quality.

Description

Technical Field

[0001] This utility model relates to the field of bearing preload technology, specifically a bearing preload spring support force measuring device. Background Technology

[0002] Bearings are important components that support rotating mechanical bodies, reduce friction during movement, and ensure rotational accuracy. They can be divided into rolling bearings and sliding bearings, etc.

[0003] Rolling bearings generally consist of four parts: an inner ring, an outer ring, rolling elements, and a cage. The inner ring fits with the shaft and rotates with the shaft, while the outer ring fits with the bearing housing and provides support. The rolling elements are evenly distributed between the inner and outer rings with the help of the cage. The cage enables the rolling elements to be evenly distributed, guides their rotation, and provides lubrication.

[0004] Since the rolling elements need to rotate, there will be clearance between the rolling elements and the inner ring, outer ring, and cage. In order to compensate for and eliminate the clearance, the common method is to use a spring to provide preload force to the bearing. However, excessive spring preload force (spring force) will cause high-speed bearings to seize and be damaged, while insufficient spring preload force (spring force) will result in insufficient shaft rigidity, leading to insufficient machining accuracy. Therefore, an accurate spring preload force value determines the installation quality and service life of the rolling bearing. Utility Model Content

[0005] In view of the above-mentioned shortcomings in the related technologies, the purpose is to provide a bearing preload spring support force measuring device to solve the technical problem that the spring preload support force cannot be accurately measured in the related technologies, which affects the installation quality of the bearing.

[0006] The technical solution to achieve the objective is: a bearing preload spring support force measuring device, comprising:

[0007] A bearing housing structure, wherein one end face of the bearing housing structure has a plurality of inner holes, and the inner holes are spaced apart;

[0008] Several springs are arranged one-to-one in the inner hole, and one end of each spring protrudes from the inner hole;

[0009] The pressure sensor structure is connected to the other end of the bearing housing structure;

[0010] The first outer sleeve is fitted onto the bearing housing structure and presses down the spring;

[0011] The second outer casing surrounds the pressure sensor structure and has a gap between it and the first outer casing;

[0012] And several adjusting screws, connecting the second outer jacket and the first outer jacket;

[0013] Rotating the adjusting screw causes the first outer sleeve to move towards the second outer sleeve, changing the distance between them. The first outer sleeve compresses the spring, and the spring's supporting force pushes the bearing housing structure and the pressure sensor structure towards the second outer sleeve. The pressure sensor structure presses against the second outer sleeve, collects pressure sensing signals, and transmits them to the computer terminal via a signal acquisition device.

[0014] Furthermore: the bearing housing structure includes: a bearing housing, wherein the inner hole is provided on one end face of the bearing housing;

[0015] And several O-rings, spaced apart and connected to the outer circumference of the bearing housing, are disposed between the bearing housing and the first outer sleeve.

[0016] Furthermore, the inner hole is a cylindrical hole.

[0017] Furthermore: the spring is a cylindrical spring, disposed in the inner hole, with one end protruding from the inner hole and contacting the first outer sleeve.

[0018] Furthermore: the pressure sensor structure includes: a connecting plate disposed on the other end face of the bearing chamber, having a bearing accommodating space between it and the bearing chamber, wherein the outer diameter of the connecting plate is smaller than the outer diameter of the bearing chamber;

[0019] A plurality of first screws, spaced apart, connect the connecting plate and the bearing housing;

[0020] A pressure sensor, connected to the connecting plate, is used to contact the second jacket.

[0021] And at least one second screw, connecting the connecting plate and the pressure sensor.

[0022] Furthermore: the first outer casing has a circular shape with a stepped through hole in the middle, where the bearing chamber structure and the spring are disposed.

[0023] Furthermore, the second outer casing has a circular shape with a groove in the middle, where the connecting plate and the pressure sensor are disposed.

[0024] Furthermore, the groove is a circular groove.

[0025] Furthermore: the adjusting screw is an internal hexagon head screw.

[0026] Furthermore: the adjusting screw passes through the through hole on the second outer sleeve and is threadedly connected to the threaded hole on the first outer sleeve.

[0027] The above technical solution has the following beneficial effects: A bearing preload spring support force measuring device, compared with related technologies, is provided with a bearing housing structure, a spring, a pressure sensor structure, a first outer jacket, a second outer jacket, and an adjusting screw;

[0028] In use, rotating the adjusting screw moves the first outer sleeve towards the second outer sleeve, changing the distance between them. The first outer sleeve compresses the spring, and the spring's supporting force pushes the bearing housing structure and pressure sensor structure towards the second outer sleeve. The pressure sensor structure presses against the second outer sleeve, collecting pressure signals and transmitting them to the computer terminal via a signal acquisition device. The pressure value is displayed on the computer monitor, and this pressure value is the spring preload.

[0029] When the distance dimension of the interval changes, several distance dimensions can be formed. Each distance dimension corresponds to a pressure value, so that the spring preload can be accurately measured. Using each distance dimension, the bearing is assembled separately, and simulation tests are carried out to obtain the optimal one as the final distance dimension.

[0030] This overcomes the technical problem that the inaccurate measurement of spring preload force affects the installation quality of bearings, and achieves the technical effect of accurately measuring spring preload force, thus ensuring the installation quality of bearings. It is practical. Attached Figure Description

[0031] Figure 1 This is a sectional view of the final assembly.

[0032] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0033] In the diagram: 10. Bearing housing structure, 11. Inner hole, 10-1. Bearing housing, 10-11. Bearing housing space, 10-2. O-ring, 20. Spring, 30. Pressure sensor structure, 30-1. Connecting plate, 30-2. First screw, 30-3. Pressure sensor, 30-4. Second screw, 40. First outer sleeve, 41. Stepped through hole, 42. Threaded hole, 50. Second outer sleeve, 51. Groove, 52. Through hole, 60. Spacing distance, 70. Adjusting screw. Detailed Implementation

[0034] To make the content easier to understand, the following detailed description is provided with reference to specific embodiments and accompanying drawings;

[0035] A bearing preload spring force measuring device solves the technical problem in related technologies where the spring preload force cannot be accurately measured, affecting the bearing installation quality. This device can be manufactured and used, achieving the positive effect of accurately measuring the spring preload force and ensuring the bearing installation quality. The overall concept is as follows:

[0036] Implementation

[0037] like Figure 1 , Figure 2 As shown; a bearing preload spring support force measuring device, comprising:

[0038] The bearing housing structure 10 has a plurality of inner holes 11 on one end face, and the inner holes 11 are spaced apart.

[0039] Several springs 20 are arranged one-to-one in the inner hole 11, and one end of each spring 20 protrudes from the inner hole 11;

[0040] The pressure sensor structure 30 is connected to the other end of the bearing housing structure 10;

[0041] The first outer sleeve 40 is fitted onto the bearing housing structure 10 and presses down the spring 20;

[0042] The second outer jacket 50 surrounds the pressure sensor structure 30 and has a spacing distance 60 between it and the first outer jacket 40;

[0043] And several adjusting screws 70, connecting the second outer sleeve 50 and the first outer sleeve 40;

[0044] Specifically, during implementation, rotating the adjusting screw 70 causes the first outer sleeve 40 to move towards the second outer sleeve 50, changing the distance 60. The first outer sleeve 40 compresses the spring 20, and the supporting force generated by the spring 20 pushes the bearing chamber structure 10 and the pressure sensor structure 30 towards the second outer sleeve 50. The pressure sensor structure 30 presses against the second outer sleeve 50, collects the pressure sensing signal, and transmits it to the computer terminal through the signal acquisition device. The pressure value is displayed on the computer monitor, and the pressure value is the spring preload.

[0045] When the distance dimension changes at intervals of 60, several distance dimensions can be formed. Each distance dimension corresponds to a pressure value, which allows the spring preload to be accurately measured. Using each distance dimension, the bearing is assembled in the bearing housing structure 10 and simulated to obtain the optimal one as the final distance dimension. This achieves accurate measurement of the spring preload and ensures the installation quality of the bearing.

[0046] Another implementation method:

[0047] like Figure 1 , Figure 2 As shown; in implementation, the bearing housing structure 10 includes: a bearing housing 10-1, with the inner hole 11 on one end face of the bearing housing 10-1; and a plurality of O-rings 10-2, which are spaced apart and connected to the outer circle of the bearing housing 10-1, and disposed between the bearing housing 10-1 and the first outer sleeve 40;

[0048] It is equipped with a bearing chamber 10-1 and an O-ring 10-2, which are connected to the first outer sleeve 40, simulating the state used in the production site and ensuring the accuracy of measuring the spring preload.

[0049] The inner hole 11 is cylindrical, which is beneficial for setting the spring 20;

[0050] Another implementation method:

[0051] like Figure 1 , Figure 2 As shown; in practice, the spring 20 is a cylindrical spring, which is set in the inner hole 11, with one end protruding from the inner hole 11 and contacting the first outer sleeve 40, so that the first outer sleeve 40 compresses the spring 20, and the supporting force (elastic force) generated by the spring 20 pushes the bearing chamber structure 10 and the pressure sensor structure 30 to move towards the second outer sleeve 50.

[0052] The supporting force generated by spring 20 creates a preload effect, which has the function of tightening the bearing. Therefore, it is called spring preload supporting force, which can compensate for and eliminate bearing clearance.

[0053] Another implementation method:

[0054] like Figure 1 , Figure 2 As shown; in implementation, the pressure sensor structure 30 includes: a connecting plate 30-1, disposed on the other end face of the bearing chamber 10-1, having a bearing receiving space 10-11 between it and the bearing chamber 10-1, the outer diameter of the connecting plate 30-1 being smaller than the outer diameter of the bearing chamber 10-1; a plurality of first screws 30-2, spaced apart, connecting the connecting plate 30-1 and the bearing chamber 10-1; a pressure sensor 30-3, connected to the connecting plate 30-1 for contacting the second outer sleeve 50; and at least one second screw 30-4 connecting the connecting plate 30-1 and the pressure sensor 30-3;

[0055] The connecting plate 30-1 is a circular plate structure, which is connected to the bearing chamber 10-1 by the first screw 30-2, making assembly relatively convenient;

[0056] The bearing housing space 10-11 simulates the bearing installation position. During measurement, the bearing can be placed in the bearing housing space 10-11, which helps to ensure the accuracy of measuring the spring preload.

[0057] The pressure sensor 30-3 is a common structure in the prior art, used to collect pressure sensing signals and transmit them to a computer terminal through a signal acquisition device. The pressure value is displayed on the computer monitor. The pressure value is the spring preload. The signal acquisition device and the computer terminal are common structures in the prior art. After seeing the disclosed content, a person skilled in the art can directly and without doubt know how to set up the pressure sensor 30-3, the signal acquisition device and the computer terminal without having to do creative work or conduct excessive experiments.

[0058] The second screw 30-4 connects the pressure sensor 30-3 and the connecting plate 30-1, making assembly relatively convenient;

[0059] Another implementation method:

[0060] like Figure 1 , Figure 2 As shown; in practice, the first outer jacket 40 has a circular structure with a stepped through hole 41 in the middle, and its regular shape is conducive to processing and manufacturing;

[0061] The bearing chamber structure 10 and the spring 20 are located at the stepped through hole 41, which makes assembly relatively convenient;

[0062] The second outer jacket 50 has a circular structure with a groove 51 in the middle. Its regular shape is conducive to processing and manufacturing.

[0063] The groove 51 is a circular groove, which is beneficial for setting up the connecting plate 30-1 and the pressure sensor 30-3;

[0064] The adjusting screw 70 is an internal hexagon head screw;

[0065] The adjusting screw 70 passes through the through hole 52 on the second outer sleeve 50 and is threadedly connected to the threaded hole 42 on the first outer sleeve 40. Rotating the adjusting screw 70 causes the first outer sleeve 40 to move towards the second outer sleeve 50, thereby changing the distance dimension of the interval 60.

[0066] The working principle is as follows: Rotating the adjusting screw 70 moves the first outer sleeve 40 towards the second outer sleeve 50, changing the distance 60. The first outer sleeve 40 compresses the spring 20. The supporting force generated by the spring 20 pushes the bearing chamber structure 10 and the pressure sensor structure 30 towards the second outer sleeve 50. The pressure sensor structure 30 presses against the second outer sleeve 50, collects the pressure sensing signal, and transmits it to the computer terminal through the signal acquisition device. The pressure value is displayed on the computer monitor. The pressure value is the spring preload.

[0067] When the distance dimension changes at intervals of 60, several distance dimensions can be formed, each corresponding to a pressure value. For example, when the pressure value is 400Pa, the distance dimension is 10mm; when the pressure value is 550Pa, the distance dimension is 9mm; and when the pressure value is 750Pa, the distance dimension is 7.5mm. This allows for accurate measurement of the spring preload. Using each distance dimension, bearings are assembled in the bearing housing structure 10, and simulation tests are conducted (the simulation tests simulate the usage scenario in the production site, which is common knowledge). The optimal distance dimension is obtained. For example, if the distance dimension is 9mm, it is the best. Therefore, 9mm is used as the final distance dimension. When assembling the bearings, 9mm is used as the distance dimension at intervals of 60. The bearing positions are relatively uniform, ensuring the installation quality of the bearings and extending their service life.

[0068] In the description, it should be understood that the terms "up", "down", "left", "right", "front", "back", etc., indicate the orientation or positional relationship based on the positional relationship shown in the accompanying drawings, and are only for the convenience or simplification of the description, rather than indicating a specific orientation that must be present; the operation process described in the embodiments is not an absolute usage step, and corresponding adjustments can be made in actual use;

[0069] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art; the words “first,” “second,” and similar terms used in the specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components, and similarly, the words “a” or “a” and similar terms do not determine a quantity limitation, but rather indicate the presence of at least one, as determined by the content of the embodiments;

[0070] The above description is only a preferred embodiment, but the scope of protection is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the disclosed technology, based on the technical solution and inventive concept, should be included within the scope of protection.

Claims

1. A bearing pre-load spring force measuring device, characterized by, include: A bearing housing structure, wherein one end face of the bearing housing structure has a plurality of inner holes, and the inner holes are spaced apart; Several springs are arranged one-to-one in the inner hole, and one end of each spring protrudes from the inner hole; The pressure sensor structure is connected to the other end of the bearing housing structure; The first outer sleeve is fitted onto the bearing housing structure and presses down the spring; The second outer casing surrounds the pressure sensor structure and has a gap between it and the first outer casing; And several adjusting screws, connecting the second outer jacket and the first outer jacket; Rotating the adjusting screw causes the first outer sleeve to move towards the second outer sleeve, changing the distance between them. The first outer sleeve compresses the spring, and the spring's supporting force pushes the bearing housing structure and the pressure sensor structure towards the second outer sleeve. The pressure sensor structure presses against the second outer sleeve, collects pressure sensing signals, and transmits them to the computer terminal via a signal acquisition device.

2. The bearing preload spring support force measuring device according to claim 1, characterized in that: The bearing housing structure includes: a bearing housing, wherein the bearing housing has the inner hole on one end face; And several O-rings, spaced apart and connected to the outer circumference of the bearing housing, are disposed between the bearing housing and the first outer sleeve.

3. The bearing preload spring support force measuring device according to claim 1, characterized in that: The inner hole is cylindrical.

4. The bearing preload spring support force measuring device according to claim 3, characterized in that: The spring is a cylindrical spring, which is disposed in the inner hole, with one end protruding from the inner hole and contacting the first outer sleeve.

5. The bearing preload spring support force measuring device according to claim 2, characterized in that: The pressure sensor structure includes: a connecting plate disposed on the other end face of the bearing chamber, having a bearing accommodating space between it and the bearing chamber, wherein the outer diameter of the connecting plate is smaller than the outer diameter of the bearing chamber; A plurality of first screws, spaced apart, connect the connecting plate and the bearing housing; A pressure sensor, connected to the connecting plate, is used to contact the second jacket. And at least one second screw, connecting the connecting plate and the pressure sensor.

6. The bearing preload spring support force measuring device according to claim 1, characterized in that: The first outer casing has a circular shape with a stepped through hole in the middle. The bearing chamber structure and the spring are located at the stepped through hole.

7. The bearing preload spring support force measuring device according to claim 5, characterized in that: The second outer casing has a circular shape with a groove in the middle, where the connecting plate and the pressure sensor are located.

8. The bearing preload spring support force measuring device according to claim 7, characterized in that: The groove is a circular groove.

9. The bearing preload spring support force measuring device according to claim 1, characterized in that: The adjusting screw is an internal hexagon head screw.

10. The bearing preload spring support force measuring device according to claim 1, characterized in that: The adjusting screw passes through the through hole on the second outer sleeve and is threadedly connected to the threaded hole on the first outer sleeve.

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