A thin-wall bearing test device

Abstract

A thin-walled bearing test device disclosed in the present invention includes an inner ring assembler, an outer ring assembler, a driver and a loader, wherein the output shaft of the driver is connected to the inner ring assembler, the loading rod of the loader is connected to the outer ring assembler through a spherical bearing, and the loading rod transmits power to the outer ring assembler through a spherical bearing, the inner ring assembler includes a disc, the disc is provided with a matching ring which matches the inner ring of the bearing to be tested and has elastic deformation capability, the disc is also provided with a screw rod, the screw rod is completely located in the matching ring, the screw rod is provided with a support disc, and the support disc is provided with a screw hole which matches the screw rod. Through this solution, the bearing to be tested is easy to assemble with the test device, the test efficiency of the test device is improved, and the labor intensity of the operator is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of bearing test devices, and in particular relates to a thin-walled bearing test device. Background Art

[0002] The thin-walled bearing testing machine simulates the use status of thin-walled bearings under maintenance, so as to conduct a series of monitoring on the use cycle and life of thin-walled bearings; the thin-walled bearing testing machine includes a bearing support mechanism, an axial and radial loading mechanism for loading the bearing, and a drive transmission mechanism; when testing the bearing, the bearing support mechanism is suspended at one end of the output spindle to form a cantilever support mechanism; the axial and radial loading mechanisms are arranged on one side of the cantilever support mechanism, and the other side of the cantilever support mechanism is connected to the drive transmission mechanism, wherein the bearing support mechanism is an important component of the bearing testing machine.

[0003] In the prior art, the outer ring and the inner ring of the bearing to be tested are assembled on the testing machine by interference fit. However, the structure of the testing machine in the prior art is unreasonable, and the assembly of the bearing to be tested is very difficult, which reduces the test efficiency of the testing machine and increases the labor intensity of the operator. Summary of the invention

[0004] The present invention provides a thin-walled bearing testing device, which aims to solve the problem of difficulty in assembling a bearing to be tested and a testing machine in the prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the present disclosure is:

[0006] A thin-walled bearing test device comprises an inner ring assembler, an outer ring assembler, a driver and a loader, wherein the output shaft of the driver is connected to the inner ring assembler, and the driver drives the inner ring assembler to rotate through the output shaft, the loading rod of the loader is connected to the outer ring assembler through a joint bearing, and the loading rod transmits power to the outer ring assembler through the joint bearing, the outer ring of the bearing to be tested is interference-fitted with the outer ring assembler, the inner ring of the bearing to be tested is interference-fitted with the inner ring assembler, and the inner ring assembler comprises a round A disc, wherein a mating ring which cooperates with the inner ring of the bearing to be tested and has elastic deformation capability is arranged on the disc, and openings which make it easy for the mating ring to produce elastic deformation are evenly distributed on the mating ring. A screw rod is also arranged on the disc, and the screw rod is coaxially arranged with the disc, and the screw rod is coaxially arranged with the mating ring, and the screw rod is completely located in the mating ring. A support disc is arranged on the screw rod, and a screw hole which cooperates with the screw rod is arranged on the support disc. The position of the support disc relative to the screw rod is adjusted, and the support disc makes the mating ring have different outer diameters.

[0007] A further improved solution: the inner wall of the mating ring has a first inclined surface, and the support plate is provided with a second inclined surface that cooperates with the first inclined surface. The position of the support plate relative to the screw rod is adjusted, and the second inclined surface contacts different positions of the first inclined surface so that the mating ring has different outer diameters.

[0008] The structure of the inner ring assembler is simplified, and the manufacturing cost of the inner ring assembler is reduced. At the same time, the outer wall of the matching ring is in surface contact with the inner ring of the bearing to be tested, the bearing to be tested is evenly stressed, and the bearing to be tested is not easily damaged.

[0009] A further improved solution: the screw rod and the disc are an integrated structure, and an operating portion for facilitating the rotation of the supporting disc is provided on the supporting disc.

[0010] A further improved solution: the operating part is a through hole provided on the support plate, there are at least two through holes, and the through holes are evenly distributed on the support plate, and the axis of the through hole is coaxial with the axis of the support plate. The operating part is a through hole, the support plate has a compact structure, and the space occupied by the support plate is reduced.

[0011] A further improved solution: a flange body is provided on the disc, and the disc is connected to the output shaft through the flange body.

[0012] Further improved solution: the outer ring assembler includes a disc body and a card body arranged on the disc body, the disc body and the card body are an integrated structure, the card body is provided with a matching surface for matching with the outer ring of the bearing to be tested, and each of the card bodies is provided with at least two matching surfaces. The bearing to be tested is easy to match with the outer ring assembler. At least two matching surfaces can match with bearings to be tested of different specifications, which widens the application range of the outer ring assembler.

[0013] A further improved solution: the disc body is located between the card body and the spherical bearing.

[0014] A further improved solution: there are at least three card bodies, and the angles between two adjacent card bodies are equal.

[0015] The beneficial effects of the present disclosure are:

[0016] A thin-walled bearing test device comprises an inner ring assembler, an outer ring assembler, a driver and a loader, wherein the output shaft of the driver is connected to the inner ring assembler, and the driver drives the inner ring assembler to rotate through the output shaft, the loading rod of the loader is connected to the outer ring assembler through a joint bearing, and the loading rod transmits power to the outer ring assembler through the joint bearing, the outer ring of the bearing to be tested is interference-fitted with the outer ring assembler, the inner ring of the bearing to be tested is interference-fitted with the inner ring assembler, and the inner ring assembler comprises a round A disc, wherein a mating ring which cooperates with the inner ring of the bearing to be tested and has elastic deformation capability is arranged on the disc, and openings which make it easy for the mating ring to produce elastic deformation are evenly distributed on the mating ring. A screw rod is also arranged on the disc, and the screw rod is coaxially arranged with the disc, and the screw rod is coaxially arranged with the mating ring, and the screw rod is completely located in the mating ring. A support disc is arranged on the screw rod, and a screw hole which cooperates with the screw rod is arranged on the support disc. The position of the support disc relative to the screw rod is adjusted, and the support disc makes the mating ring have different outer diameters.

[0017] By providing a support plate and a matching ring, and the matching ring has elastic deformation, in the actual assembly process, the inner ring of the bearing to be tested is first sleeved on the matching ring, and then the support plate is rotated to make the support plate move along the axial direction of the screw rod. At this time, the support plate can enlarge the outer diameter of the matching ring, so that the outer diameter of the matching ring forms an interference fit with the inner ring of the bearing to be tested. Through this solution, the bearing to be tested is easy to assemble with the test device, the test efficiency of the test device is improved, and the labor intensity of the operator is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of a thin-walled bearing test device in the present disclosure.

[0020] Figure 2 It is an exploded view of a thin-walled bearing test device in the present disclosure in the first direction.

[0021] Figure 3 It is an exploded view of a thin-walled bearing test device in the present disclosure in the second direction.

[0022] Figure 4 It is an exploded view of a thin-walled bearing test device in the present disclosure in the third direction.

[0023] Description of the numbers in the figure:

[0024] 1-inner ring assembler; 2-outer ring assembler; 3-output shaft; 4-loading rod; 5-spherical bearing; 6-disc; 7-matching ring; 8-opening; 9-screw rod; 10-support disk; 11-screw hole; 12-first inclined surface; 13-second inclined surface; 14-operating part; 15-flange body; 16-disc body; 17-card body; 18-matching surface. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present disclosure to provide a clear and complete description of the technical solutions in the embodiments of the present disclosure. It should be understood that the specific embodiments described herein are only used to explain the present disclosure and are not used to limit the present disclosure. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present disclosure.

[0026] Embodiment 1:

[0027] See also Figures 1 to 4 A thin-walled bearing test device comprises an inner ring assembler 1, an outer ring assembler 2, a driver and a loader, wherein an output shaft 3 of the driver is connected to the inner ring assembler 1, and the driver drives the inner ring assembler 1 to rotate through the output shaft 3, a loading rod 4 of the loader is connected to the outer ring assembler 2 through a joint bearing 5, and the loading rod 4 transmits power to the outer ring assembler 2 through the joint bearing 5, the outer ring of the bearing to be tested is interference fit with the outer ring assembler 2, the inner ring of the bearing to be tested is interference fit with the inner ring assembler 1, the inner ring assembler 1 comprises a disc 6, and the The disc is provided with a mating ring 7 which cooperates with the inner ring of the bearing to be tested and has elastic deformation capability. The mating ring 7 is evenly distributed with openings 8 which make it easy for the mating ring 7 to produce elastic deformation. The disc 6 is also provided with a screw rod 9 which is coaxially arranged with the disc 6 and the mating ring 7. The screw rod 9 is completely located in the mating ring 7. The screw rod 9 is provided with a support plate 10 which is provided with a screw hole 11 which cooperates with the screw rod 9. By adjusting the position of the support plate 10 relative to the screw rod 9, the support plate 10 makes the mating ring 7 have different outer diameters.

[0028] The driver and the loader are conventional devices in the prior art, and their configuration schemes and working principles refer to the prior art. In this embodiment, the output vehicle and the inner ring assembler 1 can be connected through a coupling to transmit power.

[0029] The inner wall of the mating ring 7 has a first inclined surface 12, and the support plate 10 is provided with a second inclined surface 13 that cooperates with the first inclined surface 12. By adjusting the position of the support plate 10 relative to the screw rod 9, the second inclined surface 13 contacts with different positions of the first inclined surface 12, so that the mating ring 7 has different outer diameters.

[0030] Since the mating ring 7 has elastic deformation capability, the first bevel 12 makes the inner cavity of the mating ring 7 conical, and the second bevel 13 makes the outer wall of the support plate 10 conical. Therefore, by changing the contact position of the first bevel 12 and the second bevel 13, the support plate 10 can expand the outer ring of the mating ring 7 to realize the assembly of the bearing to be tested.

[0031] The screw rod 9 and the disc 6 are an integrated structure, and an operating portion 14 for facilitating the rotation of the supporting disc 10 is provided on the supporting disc 10 .

[0032] The operating portion 14 is a through hole provided on the support plate 10. There are at least two through holes, and the through holes are evenly distributed on the support plate 10. The axis of the through hole is coaxial with the axis of the support plate 10. The operating portion 14 can be operated by a caliper.

[0033] The disc 6 is provided with a flange body 15 , and the disc 6 is connected to the output shaft 3 through the flange body 15 .

[0034] Embodiment 2:

[0035] On the basis of the above embodiment: the outer ring assembler 2 includes a disk body 16 and a card body 17 arranged on the disk body 16, the disk body 16 and the card body 17 are an integrated structure, the card body 17 is provided with a mating surface 18 that cooperates with the outer ring of the bearing to be tested, and each of the card bodies 17 is provided with at least two mating surfaces 18.

[0036] The disc body 16 is located between the card body 17 and the spherical bearing 5 .

[0037] There are at least three card bodies 17, and the angles between two adjacent card bodies 17 are equal. The assembly method of the outer ring of the bearing to be tested and the outer ring assembler 2 refers to the prior art.

[0038] The outer ring assembler 2 may also be a self-centering chuck, so that the outer ring assembler 2 is easy to assemble with the bearing to be tested.

[0039] The thin-walled bearing test device disclosed in the present invention is further described below in combination with the application method:

[0040] First, the inner ring of the bearing to be tested is sleeved on the matching ring 7, and then the support plate 10 is rotated to make the support plate 10 move axially along the screw rod 9. At this time, the support plate 10 can expand the outer diameter of the matching ring 7 so that the outer diameter of the matching ring 7 forms an interference fit with the inner ring of the bearing to be tested. Through this solution, the bearing to be tested is easy to assemble with the test device, which improves the test efficiency of the test device and reduces the labor intensity of the operator.

[0041] The present disclosure is not limited to the above optional implementation modes. Under the premise of not conflicting with each other, the various schemes can be combined arbitrarily. Anyone can derive other forms of products under the inspiration of the present disclosure. However, no matter what changes are made in their shapes or structures, all technical schemes that fall within the scope of the claims of the present disclosure shall fall within the protection scope of the present disclosure.

Claims

1. A thin-walled bearing test device, comprising an inner ring assembler, an outer ring assembler, a driver and a loader, wherein the output shaft of the driver is connected to the inner ring assembler, and the driver drives the inner ring assembler to rotate through the output shaft, the loading rod of the loader is connected to the outer ring assembler through a joint bearing, and the loading rod transmits power to the outer ring assembler through the joint bearing, the outer ring of the bearing to be tested is interference fit with the outer ring assembler, and the inner ring of the bearing to be tested is interference fit with the inner ring assembler, and the device is characterized in that: The inner ring assembler includes a disc, on which is provided a mating ring which cooperates with the inner ring of the bearing to be tested and has elastic deformation capability, and on which openings are evenly distributed to make it easy for the mating ring to produce elastic deformation. A screw rod is also provided on the disc, and the screw rod is coaxially arranged with the disc, and the screw rod is coaxially arranged with the mating ring, and the screw rod is completely located in the mating ring. A support plate is provided on the screw rod, and a screw hole which cooperates with the screw rod is provided on the support plate. By adjusting the position of the support plate relative to the screw rod, the support plate enables the mating ring to have different outer diameters.

2. A thin-walled bearing test device according to claim 1, characterized in that: The inner wall of the matching ring has a first inclined surface, and the support plate is provided with a second inclined surface matching the first inclined surface. The position of the support plate relative to the screw rod is adjusted so that the second inclined surface contacts different positions of the first inclined surface so that the matching ring has different outer diameters.

3. A thin-walled bearing test device according to claim 2, characterized in that: The screw rod and the disc are an integrated structure, and an operating portion for facilitating the rotation of the supporting disc is provided on the supporting disc.

4. A thin-walled bearing testing device according to claim 3, characterized in that: The operating portion is a through hole arranged on the support plate, there are at least two through holes, and the through holes are evenly distributed on the support plate, and the axis of the through hole is coaxial with the axis of the support plate.

5. A thin-walled bearing testing device according to claim 4, characterized in that: The disc is provided with a flange body, and the disc is connected with the output shaft through the flange body.

6. A thin-walled bearing testing device according to claim 5, characterized in that: The outer ring assembler includes a disc body and a card body arranged on the disc body. The disc body and the card body are an integrated structure. The card body is provided with a matching surface that matches the outer ring of the bearing to be tested, and each card body is provided with at least two matching surfaces.

7. A thin-walled bearing testing device according to claim 6, characterized in that: The disc body is located between the card body and the spherical bearing.

8. A thin-walled bearing testing device according to claim 7, characterized in that: There are at least three card bodies, and the angles between two adjacent card bodies are equal.

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