Bearing rotation testing device

Abstract

The utility model discloses a bearing rotation testing device which comprises a base, a motor, a first supporting column, a second supporting column and a supporting block are installed on the base, the first supporting column, the second supporting column and the supporting block are arranged in a triangular mode, an inner ring of a bearing is fixed, and the positions of the first supporting column and the second supporting column can be adjusted. A belt pulley is installed on an output shaft of the motor and drives a bearing outer ring to rotate through a belt so as to carry out a rotation test. According to the bearing rotation testing device provided by the utility model, the inner ring of the bearing is fixed through the first supporting column, the second supporting column and the supporting block, and the belt drives the outer ring of the bearing to rotate, so that the rotation test of the bearing is realized. And by adjusting the positions of the first supporting column and the second supporting column, the requirements of rotation testing of bearings with different diameters are met, and the application range of the device is widened.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearing testing devices, and in particular relates to a bearing rotation testing device. Background Art

[0002] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] Bearings are an important component in modern mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. The life of rolling bearings is defined by the number of revolutions (or the number of hours of operation at a certain speed): within this life, the bearings should not have initial fatigue damage (peeling or defect) on any of its bearing rings or rolling elements. However, whether in laboratory tests or in actual use, it can be clearly seen that the actual life of bearings with the same appearance under the same working conditions is very different. In addition, there are several different definitions of bearing "life".

[0004] There are some bearing testing tools in the prior art, such as Chinese invention patent CN110017984A, which discloses a bearing outer ring rotation testing tool. When using this testing tool to perform bearing rotation testing, it is necessary to provide a corresponding matching shaft for each test bearing. The diameter of the matching shaft cannot be changed. Bearings of different diameters need to have separate shafts made. The testing cost is high, and it is not suitable for testing a large number of bearing models. Utility Model Content

[0005] The utility model aims to provide a bearing rotation test device, which can realize rotation test on bearings with different diameters, is easy to use, does not need to make a rotating shaft separately, and improves the bearing test efficiency.

[0006] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] In the first aspect, an embodiment of the utility model provides a bearing rotation testing device, comprising a base, on which a motor, a first support column, a second support column and a support block are installed, wherein the first support column, the second support column and the support block are arranged in a triangle to fix the inner ring of the bearing, and the positions of the first support column and the second support column can be adjusted; a pulley is installed on the output shaft of the motor, and the pulley drives the outer ring of the bearing to rotate through a belt to perform a rotation test.

[0008] As a further technical solution, two opposite tensioning devices are arranged on the base, and the two tensioning devices are located on the outside of the belt to tension the belt.

[0009] As a further technical solution, the tensioning device includes a tensioning wheel, which is installed on the bracket, and the axis of the tensioning wheel is perpendicular to the upper surface of the base.

[0010] As a further technical solution, the base is provided with a first positioning hole, a second positioning hole, a third positioning hole and a fourth positioning hole, and the positioning holes include two rows of multiple circular holes that are parallel and oppositely arranged.

[0011] As a further technical solution, the first positioning hole is used to install a first tensioning device, the second positioning hole is used to install a second tensioning device, the third positioning hole is used to install a first support column, and the fourth positioning hole is used to install a second support column.

[0012] As a further technical solution, the outer side of the tensioning device is supported by a support frame.

[0013] As a further technical solution, the surface of the support block that fits the inner ring of the bearing is in an arc-shaped structure.

[0014] As a further technical solution, the motor is fixed on the base through a motor mounting seat, and the output shaft of the motor is arranged downward, and the output shaft passes through the motor mounting seat and is placed in the motor mounting seat.

[0015] As a further technical solution, the motor mounting seat is in a "X"-shaped structure with an opening facing downward.

[0016] As a further technical solution, the first support column and the second support column are both installed on the base through a fixing block.

[0017] The beneficial effects of the above-mentioned embodiments of the utility model are as follows:

[0018] The bearing rotation test device provided by the utility model fixes the inner ring of the bearing by means of the first support column, the second support column and the support block, and the belt drives the outer ring of the bearing to rotate, thereby realizing the rotation test of the bearing. The requirements of the rotation test of bearings of different diameters can be met by adjusting the positions of the first support column and the second support column, thereby improving the application range of the device.

[0019] The bearing rotation testing device provided by the utility model tensions the belt during the test by means of two tensioning devices, thereby increasing the friction between the belt and the outer ring of the bearing, so that the belt can drive the outer ring of the bearing to rotate. At the same time, when testing bearings of different models, it is only necessary to adjust the positions of the two support columns and the two tensioning devices without replacing parts. Compared with the existing bearings of different diameters that require separate production of rotating shafts, the utility model reduces costs and has the advantages of simple structure and easy use.

[0020] The bearing rotation testing device provided by the utility model provides support for the tensioning device through a support frame in order to ensure the stability of the tensioning device in tensioning the belt. At the same time, the support frame and the tensioning device are connected through bolts, and the tensioning degree can be fine-tuned by rotating the bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0022] Figure 1 It is a schematic diagram of the bearing rotation test device of the utility model when performing a bearing test;

[0023] Figure 2 It is a schematic diagram of the overall structure of the bearing rotation test device of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the tensioning device of the utility model.

[0025] The schematic diagram is for illustrative purposes only;

[0026] Among them, 1. base; 2. motor; 3. motor mounting seat; 4. first tensioning device; 401. tensioning wheel; 402. bracket; 5. second tensioning device; 6. belt; 7. bearing; 701. bearing inner ring; 702. rolling element; 703. bearing outer ring; 8. first support column; 9. second support column; 10. support block; 11. first positioning hole; 12. second positioning hole; 13. third positioning hole; 14. fourth positioning hole; 15. support frame. DETAILED DESCRIPTION

[0027] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0028] Example 1

[0029] In a typical implementation of the present invention, Figure 1 and Figure 2As shown, a bearing rotation test device is provided, including a base 1, on which a motor 2, a first support column 8, a second support column 9 and a support block 10 are installed, wherein the first support column 8, the second support column 9 and the support block 10 are arranged in a triangle to fix the inner ring 701 of the bearing, and the positions of the first support column 8 and the second support column 9 can be adjusted; a pulley is installed on the output shaft of the motor 2, and the pulley drives the outer ring 703 of the bearing to rotate through a belt 6 to perform a rotation test.

[0030] In this embodiment, the base 1 adopts a rectangular plate structure, and the base 1 provides support for the entire device. Two relative tensioning devices, namely a first tensioning device 4 and a second tensioning device 5, are provided on the base. The two tensioning devices are located on the outside of the belt 6 to tension the belt.

[0031] Furthermore, the tensioning device includes a tensioning wheel 401, which is installed on a bracket 402. The bracket 402 provides support for the tensioning wheel 401. The tensioning wheel 401 can rotate freely on the bracket 402. The axis of the tensioning wheel 401 is vertically arranged to the upper surface of the base, so that the tensioning device does not affect the normal rotation of the belt when tensioning the belt.

[0032] Furthermore, the base 1 is provided with a first positioning hole 11, a second positioning hole 12, a third positioning hole 13 and a fourth positioning hole 14, and the positioning holes include two rows of multiple circular holes arranged in parallel and opposite to each other, wherein the first positioning hole 11 and the second positioning hole 12 are arranged opposite to each other, the first positioning hole 11 is installed with a first tensioning device 4, and the second positioning hole 12 is installed with a second tensioning device 5, and the tightness of the belt 6 can be adjusted by adjusting the positions of the first tensioning device 4 and the second tensioning device 5; the third positioning hole 13 and the fourth positioning hole 14 are arranged at a certain angle, the third positioning hole 13 is installed with a first support column 8, and the fourth positioning hole 14 is installed with a second support column 9, and the inner rings of bearings of different sizes can be fixed by adjusting the positions of the first support column 8 and the second support column 9, so as to realize the rotation test of bearings of various different models and improve the application scope of the device.

[0033] The bracket of the tensioning device is provided with a long hole, and the bolt passes through the long hole and the positioning hole to fix the tensioning device. The design of the long hole makes the position adjustment of the tensioning device more flexible.

[0034] In order to ensure the stability of the tensioning device, the outer side of the tensioning device is supported by a support frame 15, which improves the stability of the entire device during the test. Furthermore, the support frame 15 is connected to the bracket 402 of the tensioning device by bolts, and the tensioning device is driven to move a small displacement by rotating the bolts to achieve fine-tuning of the belt tension.

[0035] In this embodiment, the surface of the support block 10 that fits with the bearing inner ring 701 is in an arc-shaped structure, so as to fit tightly with the bearing inner ring 701 to fix the bearing inner ring.

[0036] In this embodiment, the motor 2 is fixed on the base 1 through the motor mounting base 3, and the output shaft of the motor 2 is set downward. The output shaft passes through the motor mounting base and is placed in the motor mounting base. Specifically, the motor mounting base 3 is a "X"-shaped structure with an opening downward, and the pulley is set in the motor mounting base 3 and connected to the output shaft of the motor.

[0037] In this embodiment, the first support column 8 and the second support column 9 are both installed on the base 1 through a fixing block. The fixing block is provided with bolt holes. The bolts pass through the bolt holes and the positioning holes on the base 1 to fix the support columns. The support and the fixing block adopt an integrated structure.

[0038] The method of using the bearing rotation test device provided in this embodiment is as follows:

[0039] The inner ring 701 of the bearing 7 is sleeved on the outside of the first support column 8, the second support column 9 and the support block 10, so that the arc surface of the support block 10 fits with the surface of the inner ring 701 of the bearing. At the same time, the positions of the first support column 8 and the second support column 9 are adjusted to achieve tensioning and fixing of the inner ring 701 of the bearing. A belt 6 is sleeved on the outer ring 703 of the bearing, and the belt 6 is installed on the pulley on the motor 2. The positions of the first tensioning device 4 and the second tensioning device 5 are adjusted to achieve tensioning of the belt. The motor 2 drives the belt 6 to rotate and then drives the outer ring 703 of the bearing to rotate, thereby realizing a rotation test of the bearing 7.

[0040] When testing bearings of different sizes, the inner rings of bearings of different sizes can be fixed by adjusting the positions of the first support column 8 and the second support column 9, and the belt can be tensioned by adjusting the positions of the first tensioning device 4 and the second tensioning device 5. There is no need to replace parts during this process, and the device is flexible to use.

[0041] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A bearing rotation test device, characterized in that: It includes a base, on which a motor, a first support column, a second support column and a support block are installed, wherein the first support column, the second support column and the support block are arranged in a triangle to fix the inner ring of the bearing, and the positions of the first support column and the second support column can be adjusted; a pulley is installed on the output shaft of the motor, and the pulley drives the outer ring of the bearing to rotate through a belt to perform a rotation test.

2. The bearing rotation testing device according to claim 1, characterized in that: The base is provided with two opposite tensioning devices, which are located on the outside of the belt to tension the belt.

3. The bearing rotation testing device according to claim 2, characterized in that: The tensioning device comprises a tensioning wheel, which is mounted on a bracket, and an axis of the tensioning wheel is arranged perpendicular to the upper surface of the base.

4. The bearing rotation testing device according to claim 2, characterized in that: The base is provided with a first positioning hole, a second positioning hole, a third positioning hole and a fourth positioning hole, and the positioning holes include two rows of multiple circular holes that are parallel and oppositely arranged.

5. The bearing rotation testing device according to claim 4, characterized in that: The first positioning hole is used to install a first tensioning device, the second positioning hole is used to install a second tensioning device, the third positioning hole is used to install a first supporting column, and the fourth positioning hole is used to install a second supporting column.

6. The bearing rotation testing device according to claim 2, characterized in that: The outer side of the tensioning device is supported by a support frame.

7. The bearing rotation testing device according to claim 1, characterized in that: The surface of the support block that fits the inner ring of the bearing is in an arc-shaped structure.

8. The bearing rotation testing device according to claim 1, characterized in that: The motor is fixed on the base through a motor mounting seat, and the output shaft of the motor is arranged downward, and the output shaft passes through the motor mounting seat and is placed in the motor mounting seat.

9. The bearing rotation testing device according to claim 8, characterized in that: The motor mounting seat is in a "X"-shaped structure with an opening downward.

10. The bearing rotation testing device according to claim 1, characterized in that: The first support column and the second support column are both mounted on the base through a fixing block.

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