Detection tool for high-speed bearing

Abstract

A detection tool for a high-speed bearing comprises a square seat and a square end cover, a middle sleeve is arranged in the square seat, an end sleeve is arranged in the square end cover, a detection hole penetrates through the upper portions of the square seat and the square end cover, a detection assembly is arranged in the detection hole, the lower end of the detection assembly is in contact with the middle sleeve or the end sleeve, and a test space is formed in the middle sleeve and the end sleeve. A rotating shaft is rotatably mounted in the testing space, two ends of the rotating shaft penetrate out of the testing space, a plurality of stations for mounting bearings to be tested are formed on the rotating shaft, an oil inlet hole is radially formed in the side surface of the middle sleeve in a penetrating manner, the inner end of the oil inlet hole is communicated with the testing space, and the outer end of the oil inlet hole penetrates through the square seat; the inner walls of the middle sleeve and the end sleeves are axially and concavely provided with oil drainage grooves, and the oil drainage grooves are communicated with the adjacent test spaces or the outside. According to the utility model, lubricating oil is injected into the test space through the oil inlet hole and flows to the test space through the oil drainage groove, so that a bearing to be tested can be effectively lubricated, heat generated by high-speed operation can be taken away, and the surge phenomenon can be avoided at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing performance testing, in particular to a high-speed bearing detection tool. Background Art

[0002] At present, with the development of aviation, military industry, precision machine tools, new energy vehicles and other fields, the requirements for bearing speed are getting higher and higher. The high speed of bearings has always been a hot spot and difficulty in the development of the bearing industry. The theoretical calculation of bearings under high-speed operation is extremely complex, and it is difficult to truly reflect the high-speed life of bearings. It is often verified by experiments. However, the existing high-speed bearing tester lacks a lubrication system for the test bearing, and cannot well reflect the actual situation during the test, which affects the detection efficiency and the service life of the bearing to be tested, and cannot well simulate the operating conditions of high-speed bearings. Summary of the invention

[0003] The purpose of the utility model is to provide a high-speed bearing detection tool, which can solve the technical problems mentioned in the background technology.

[0004] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows: a high-speed bearing detection tool, comprising a square seat and square end covers located on both sides of the square seat, an annular intermediate sleeve is provided in the square seat, and the outer wall of the intermediate sleeve is tightly matched with the square seat, and an annular end sleeve is provided in the square end cover, and the outer wall of the end sleeve is tightly matched with the square end cover, and the upper part of the square seat and the square end cover is penetrated by a detection hole, and a detection component is provided in the detection hole, and the lower end of the detection component contacts the intermediate sleeve or the end sleeve, and a test space is formed in the intermediate sleeve and the end sleeves on both sides, and a rotating shaft is rotatably installed in the test space, and the two ends of the rotating shaft pass through the test space, and a plurality of stations for installing the bearing to be tested are formed on the rotating shaft, and an oil inlet hole is radially penetrated on the side of the intermediate sleeve, and the inner end of the oil inlet hole is connected to the test space, and the outer end of the oil inlet hole passes through the square seat, and an oil drain groove is axially recessed on the inner wall of the intermediate sleeve and the end sleeve, and the oil drain groove is connected to the adjacent test space or the outside.

[0005] Preferably, the oil drain groove is located opposite to the oil inlet hole, and the oil drain groove is higher than the bottom of the test space but lower than the oil inlet hole.

[0006] Preferably, a first mounting step for mounting the end sleeve is formed on the inner side of the square end cover, and a second mounting step for mounting the bearing to be tested is formed on the inner side of the end sleeve. The aperture of the first mounting step is larger than the aperture of the second mounting step, and a plurality of positioning holes are evenly distributed laterally on the first mounting step.

[0007] Preferably, connecting seats are protrudingly provided on both sides of the square seat, and connecting holes are provided on the connecting seats.

[0008] Compared with the prior art, the utility model has the following beneficial effects: the utility model injects lubricating oil into the test space through the oil inlet hole, and flows to both sides of the test space through the oil drain groove, which can effectively lubricate the bearing to be tested, and a large amount of lubricating oil can take away the heat generated by the high-speed operation of the bearing to be tested. At the same time, the lubricating oil passes through the bearing to be tested from the oil drain groove, so that the oil pressure on both sides of the bearing to be tested is the same, avoiding the surge phenomenon, thereby avoiding the fall-off of the retainer of the bearing to be tested, and ensuring the normal test. The utility model has a simple structure, is easy to implement, has high lubrication efficiency, and effectively simulates actual working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the utility model.

[0010] Figure 2 It is a three-dimensional diagram of the square seat of the utility model.

[0011] Figure 3 It is a three-dimensional diagram of a square end cover of the utility model. DETAILED DESCRIPTION

[0012] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0013] like Figure 1-Figure 3 As shown, the utility model provides a high-speed bearing detection tool, including a square seat 1, and square end covers 2 located on both sides of the square seat 1, the square seat 1 is provided with an annular intermediate sleeve 3, the outer wall of the intermediate sleeve 3 is tightly matched with the square seat 1, the square end cover 2 is provided with an annular end sleeve 4, the outer wall of the end sleeve 4 is tightly matched with the square end cover 2, the upper parts of the square seat 1 and the square end cover 2 are penetrated by a detection hole 5, the detection hole 5 is provided with a detection component, the lower end of the detection component is in contact with the intermediate sleeve 3 or the end sleeve 4, the intermediate sleeve 3 and the two sides A test space 6 is formed in the end sleeve 5, in which a rotating shaft 7 is rotatably installed, and both ends of the rotating shaft 7 pass through the test space 6. A plurality of workstations for installing a bearing to be tested 8 are formed on the rotating shaft 7. An oil inlet hole 9 is radially penetrated on the side surface of the intermediate sleeve 3, and the inner end of the oil inlet hole 9 is connected to the test space 6. The outer end of the oil inlet hole 9 penetrates the square seat 1 and is connected to the external oil supply system. An oil drain groove 10 is axially recessed on the inner walls of the intermediate sleeve 3 and the end sleeve 4, and the oil drain groove 10 is connected to the adjacent test space 6 or the outside.

[0014] When the utility model is in use, a plurality of bearings 8 to be tested are installed on the rotating shaft 7, and then the rotating shaft 7 is installed in the test space 6, and the bearing 8 to be tested is located between the rotating shaft 7 and the middle sleeve 3 or the end sleeve 4, and then the entire detection tooling is fixed in the environmental simulation device, one end of the rotating shaft 7 is connected to the high-speed drive motor, and the high-speed drive motor drives the rotating shaft 7 to operate, and the other end of the rotating shaft 7 is connected to the force-applying mechanism, and the force-applying mechanism applies a certain pressure to the bearing 8 to be tested according to the test needs, thereby simulating the operating environment of the high-speed bearing, and then the performance parameters of the bearing 8 to be tested are collected through the detection component in the detection hole 5. During the detection process, lubricating oil can be injected into the test space 6 through the oil inlet hole 9, and flow to both sides of the test space 6 through the oil drain groove 10, which can effectively lubricate the bearing 8 to be tested, and a large amount of lubricating oil can take away the heat generated by the high-speed operation of the bearing 8 to be tested. At the same time, the lubricating oil passes through the bearing 8 to be tested from the oil drain groove 10, so that the oil pressure on both sides of the bearing 8 to be tested is the same, avoiding the surge phenomenon, and then avoiding the retainer of the bearing 8 to be tested from falling off, ensuring the normal test. The utility model has a simple structure, is easy to implement, has high lubrication efficiency, and effectively simulates actual working conditions.

[0015] Preferably, the oil drain groove 10 is located opposite to the oil inlet hole 9. The oil drain groove 10 is higher than the bottom of the test space 6 but lower than the oil inlet hole to facilitate the flow of lubricating oil.

[0016] Preferably, a first mounting step 11 for mounting the end sleeve 4 is formed on the inner side of the square end cover 2, and a second mounting step 12 for mounting the bearing 8 to be tested is formed on the inner side of the end sleeve 4. The aperture of the first mounting step 11 is larger than the aperture of the second mounting step 12, and a plurality of positioning holes 13 are evenly distributed laterally on the first mounting step 11 to facilitate the installation and fixation of the square end cover 2, the end sleeve 4 and the bearing 8 to be tested.

[0017] Preferably, connecting seats 14 are protrudingly provided on both sides of the square seat 1 , and connecting holes 15 are provided on the connecting seats 14 to facilitate the installation and fixation of the square seat 1 .

[0018] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and the implementation scheme. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A high-speed bearing detection tool, characterized in that: The invention comprises a square seat and square end covers on both sides of the square seat, wherein an annular intermediate sleeve is provided in the square seat, and the outer wall of the intermediate sleeve is tightly matched with the square seat, and an annular end sleeve is provided in the square end cover, and the outer wall of the end sleeve is tightly matched with the square end cover, and the upper parts of the square seat and the square end cover are penetrated by a detection hole, and a detection assembly is provided in the detection hole, and the lower end of the detection assembly contacts with the intermediate sleeve or the end sleeve, and a test space is formed in the intermediate sleeve and the end sleeves on both sides, and a rotating shaft is rotatably installed in the test space, and the two ends of the rotating shaft pass through the test space, and a plurality of stations for installing the bearing to be tested are formed on the rotating shaft, and an oil inlet hole is radially penetrated on the side surface of the intermediate sleeve, and the inner end of the oil inlet hole is connected with the test space, and the outer end of the oil inlet hole passes through the square seat, and an oil drain groove is axially recessed on the inner wall of the intermediate sleeve and the end sleeve, and the oil drain groove is connected to the adjacent test space or the outside.

2. The high-speed bearing detection tooling according to claim 1 is characterized in that: The oil drain groove is located opposite to the oil inlet hole, and the oil drain groove is higher than the bottom of the test space but lower than the oil inlet hole.

3. The high-speed bearing detection tool according to claim 1 or 2, characterized in that: A first mounting step for mounting the end sleeve is formed on the inner side of the square end cover, and a second mounting step for mounting the bearing to be tested is formed on the inner side of the end sleeve. The aperture of the first mounting step is larger than the aperture of the second mounting step, and a plurality of positioning holes are evenly distributed laterally on the first mounting step.

4. The high-speed bearing detection tool according to claim 1 or 2, characterized in that: Connecting seats are protrudingly provided on both sides of the square seat, and connecting holes are provided on the connecting seats.

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