Rolling bearing structure suitable for high-speed operation

Abstract

A rolling bearing structure suitable for high-speed operation comprises a bearing outer ring and a bearing inner ring, an inner side channel is machined in the inner side of the bearing outer ring, an outer side channel is machined in the outer side of the bearing inner ring, grooves are evenly distributed in the side faces of the inner side channel and the outer side channel, and one end of each groove leads to the corresponding inner side channel or the corresponding outer side channel. Compared with the prior art, according to the rolling bearing structure suitable for high-speed operation, lubricating oil can be effectively brought to an operation area through the grooves in the inner ring and the outer ring of the bearing, a better lubricating effect is achieved, the lubricating performance of the lubricating oil in the rolling bearing can be effectively improved, and the service life of the rolling bearing is prolonged. The service life of the rolling bearing during high-speed operation is prolonged, and the defect that the service life of the rolling bearing during high-speed operation is short is overcome.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing technical field, specifically point to a kind of rolling bearing structure suitable for high-speed operation. BACKGROUND

[0002] Bearing can be divided into rolling bearing and sliding bearing according to working nature, wherein, rolling bearing is the important component indispensable in high-end equipment, and it plays the role of supporting, positioning, carrying and friction to rotating parts such as shafts;With the development of science and technology and the continuous progress of mechanical equipment, the requirements for the precision, performance and service life of rolling bearing are higher and higher;During the operation of rolling bearing, relative motion, heavy load, high speed and skidding between rolling element, retainer and sleeve ring can cause serious friction and wear;Therefore, people are increasingly aware of the important role of lubrication in rolling bearing. SUMMARY

[0003] The utility model solves the technical problems in view of the above-mentioned prior art, and provides a rolling bearing structure suitable for high-speed operation.

[0004] To solve the above technical problems, the utility model adopts the technical scheme of:

[0005] A rolling bearing structure suitable for high-speed operation, comprising a bearing outer ring and a bearing inner ring, an inner side channel is machined on the inner side of the bearing outer ring, an outer side channel is machined on the outer side of the bearing inner ring, the side surfaces of the inner side channel and the outer side channel are uniformly provided with grooves, and one end of the groove leads to the corresponding inner side channel or outer side channel.

[0006] Further, the groove is a "person" type groove.

[0007] Further, the depth of the "person" type groove is 1% to 1.5% of the wall thickness of the bearing outer ring or the bearing inner ring where the groove is located.

[0008] Further, the "person" type grooves on the bearing outer ring and the "person" type grooves on the bearing inner ring are installed in the same rotation direction.

[0009] Compared with the prior art, the rolling bearing structure suitable for high-speed operation of the utility model can effectively bring lubricating oil to the running area by using the grooves on the bearing inner ring and the bearing outer ring, which plays a better lubricating effect, effectively improves the lubricating performance of the lubricating oil in the rolling bearing, increases the working life of the rolling bearing during high-speed operation, and makes up for the shortcoming of short working life of the rolling bearing during high-speed operation. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 is the structure schematic diagram of the utility model;

[0011] Wherein, 1, bearing outer ring, 2, bearing inner ring, 3, inner side channel, 4, outer side channel, 5, groove. DETAILED DESCRIPTION

[0012] The technical solutions in the embodiments of the utility model will be clearly and completely described below.

[0013] As Figure 1 shown, a rolling bearing structure suitable for high-speed operation includes a bearing outer ring 1 and a bearing inner ring 2, the bearing outer ring 1 has an inner side channel 3 machined on the inner side, the bearing inner ring 2 has an outer side channel 4 machined on the outer side, the side surfaces of the inner side channel 3 and the outer side channel 4 are uniformly provided with grooves 5, and one end of the groove 5 leads to the corresponding inner side channel or outer side channel.

[0014] In the embodiment, the groove 5 adopts a "person" type groove, the "person" type groove is distributed on both sides of the inner side channel 3 and the outer side channel 4, and the "person" type grooves are arranged in sequence, wherein, one end of the "person" type groove leads to the corresponding channel, the "person" type groove structure provides a return channel for lubricating oil, and when the rolling bearing operates, the lubricating oil will be pushed to the intersection of the "person" type groove, so as to realize sufficient lubrication, and after stopping working, the lubricating oil returns to the channel.

[0015] The depth of the "person" type groove is 1% to 1.5% of the wall thickness of the bearing outer ring or the bearing inner ring where the groove is located, and when installed, the "person" type grooves on the bearing outer ring and the "person" type grooves on the bearing inner ring are installed in the same rotating direction.

[0016] Taking a bearing of model 830 as an example

[0017] The bearing inner and outer rings without the machined "person" type grooves and the bearing inner and outer rings with the machined "person" type grooves are respectively used for life test, and the test is shown in the following table 1.

[0018] Table 1

[0019] Test parameters Without "chevron" grooves With "chevron" grooves Rotation speed / rpm 30000 30000 Temperature / °C 70 70 Test time / h 1000 1000 Test group number / group 10 10 NG number / group 3 1

[0020] Therefore, the working life of the bearing with the "person" type groove is improved, and the shortcoming of short working life of the rolling bearing in high-speed operation is compensated.

[0021] The utility model is not limited to the embodiments described, and those skilled in the art can still make some corrections or changes without departing from the spirit of the utility model, i.e. the disclosed range, so the protection scope of the utility model is limited to the range defined in the claims.

Claims

1. A rolling bearing structure suitable for high speed operation, comprising an outer bearing ring and an inner bearing ring, the inner side of the outer bearing ring being machined with an inner side raceway, the outer side of the inner bearing ring being machined with an outer side raceway, characterized in that: The side surface of the inner side channel and the outer side channel is provided with a groove, and one end of the groove leads to the corresponding inner side channel or outer side channel.

2. A rolling bearing structure suitable for high speed operation according to claim 1, characterized in that: The groove is a "person”-shaped groove.

3. A rolling bearing structure suitable for high speed operation according to claim 2, characterized in that: The depth of the "person”-shaped groove is 1% to 1.5% of the wall thickness of the bearing outer ring or the bearing inner ring.

4. A rolling bearing structure suitable for high speed operation according to claim 2, characterized in that: The "person”-shaped groove on the bearing outer ring and the "person”-shaped groove on the bearing inner ring are installed in the same rotating direction.

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