CN210799723U - Four-point contact type high-speed lead screw bearing - Google Patents
Four-point contact type high-speed lead screw bearing Download PDFInfo
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- CN210799723U CN210799723U CN201921774453.4U CN201921774453U CN210799723U CN 210799723 U CN210799723 U CN 210799723U CN 201921774453 U CN201921774453 U CN 201921774453U CN 210799723 U CN210799723 U CN 210799723U
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Abstract
The utility model belongs to the technical field of bearings, and relates to a four-point contact type high-speed lead screw bearing, which comprises an outer ring and an inner ring which are mutually matched and connected, wherein balls are arranged between the outer ring and the inner ring; an outer ring oil groove is formed in the middle of the inner wall of the outer ring, and an outer ring first contact point and an outer ring second contact point are respectively formed on the inner wall of the outer ring corresponding to two sides of the outer ring oil groove; an inner ring oil groove is formed in the middle of the inner wall of the inner ring, and an inner ring first contact point and an inner ring second contact point are formed on the inner wall of the inner ring corresponding to two sides of the inner ring oil groove respectively; the ball is respectively contacted with the outer ring first contact point, the outer ring second contact point, the inner ring first contact point and the inner ring second contact point. Compared with the existing bearing, the bearing capacity of the lead screw bearing is greatly improved.
Description
Technical Field
The utility model belongs to the technical field of the bearing, a high-speed lead screw bearing of four point contact is related to.
Background
The ball screw bearing is mainly applied to a ball screw, and the ball screw transmission has the advantages of small starting torque, sensitive and stable transmission, long service life and the like, so the ball screw bearing is widely applied to the mechanical manufacturing industries of machine tools, automobiles, robots, aerospace and the like. One end of the ball screw is provided with a pair of ball screw bearings, which are positioning bearings for the screw, which generally bears axial forces. With the wider application of the screw pair in high speed and heavy load, the requirements on the rotating speed and the bearing capacity of the ball screw bearing are higher and higher. The ball screw bearing widely used at present generally comprises an inner ring, an outer ring, a retainer and a plurality of steel balls, wherein a raceway of the inner ring and the outer ring is formed by R with the value of 0.515-0.54 times of the steel balls, and R is called the groove curvature for short. When the bearing works, the lead screw is stressed axially, so that the inner ring of the bearing generates a few axial forces, the axial forces are transmitted to the steel ball through the inner ring and then transmitted to the outer ring, and 2 point contacts are formed between the ball and the raceways of the inner ring and the outer ring. The speed factor of the bearing is proportional to R and the load capacity is inversely proportional to R. Current configurations are unable to meet customer requirements as operating speed and load requirements increase simultaneously.
Disclosure of Invention
To the above problem, the utility model provides a high-speed lead screw bearing of four point contact, this lead screw bearing's bearing capacity compares current bearing and has very big improvement.
According to the technical scheme of the utility model: a four-point contact type high-speed lead screw bearing is characterized in that: the ball bearing comprises an outer ring and an inner ring which are mutually matched and connected, and a ball is arranged between the outer ring and the inner ring; an outer ring oil groove is formed in the middle of the inner wall of the outer ring, and an outer ring first contact point and an outer ring second contact point are respectively formed on the inner wall of the outer ring corresponding to two sides of the outer ring oil groove; an inner ring oil groove is formed in the middle of the inner wall of the inner ring, and an inner ring first contact point and an inner ring second contact point are formed on the inner wall of the inner ring corresponding to two sides of the inner ring oil groove respectively; the ball is respectively contacted with the outer ring first contact point, the outer ring second contact point, the inner ring first contact point and the inner ring second contact point.
As a further improvement, the outer lane is provided with radial extension's outer lane stop, and the inner circle is provided with radial extension's inner circle stop, and the ball passes through outer lane stop, inner circle stop realize along bearing axial spacing.
The technical effects of the utility model reside in that: the utility model discloses product structure is ingenious, reasonable, can effectively strengthen the bearing capacity of product, has set up the lubricated effect that the raceway can effectively be strengthened to the oil drain respectively in outer lane, inner circle simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings.
In fig. 1 and 2, the device includes an outer ring first contact point 1, an outer ring second contact point 2, an inner ring first contact point 3, an inner ring second contact point 4, an inner ring oil groove 5, an outer ring oil groove 6, an inner ring ball groove 7, an outer ring ball groove 8, an outer ring 9, an outer ring blocking portion 9-1, an inner ring 10, an inner ring blocking portion 10-1, and the like.
As shown in fig. 1 and 2, the utility model relates to a four-point contact type high-speed screw bearing, which comprises an outer ring 9 and an inner ring 10 which are mutually matched and connected, and balls are arranged between the outer ring 9 and the inner ring 10; an outer ring oil groove 6 is formed in the middle of the inner wall of the outer ring 9, and an outer ring first contact point 1 and an outer ring second contact point 2 are formed on the inner wall of the outer ring 9 corresponding to two sides of the outer ring oil groove 6 respectively; an inner ring oil groove 5 is formed in the middle of the inner wall of the inner ring 10, and an inner ring first contact point 3 and an inner ring second contact point 4 are formed on the inner wall of the inner ring 10 corresponding to two sides of the inner ring oil groove 5 respectively; the ball is respectively contacted with the outer ring first contact point 1, the outer ring second contact point 2, the inner ring first contact point 3 and the inner ring second contact point 4.
The outer ring 9 is provided with an outer ring blocking part 9-1 extending in the radial direction, the inner ring 10 is provided with an inner ring blocking part 10-1 extending in the radial direction, and the ball is limited in the axial direction of the bearing through the outer ring blocking part 9-1 and the inner ring blocking part 10-1.
The product of the utility model has reasonable and ingenious structure, and the oil grooves are respectively arranged on the non-working surfaces of the inner ring 10 and the outer ring 9 so as to store the grease in the roller path and effectively improve the lubricating effect of the roller path; and simultaneously, the utility model discloses the product is provided with the four-point contact to the ball, and the bearing capacity of bearing can effectively be improved to four-point contact structure.
Claims (2)
1. A four-point contact type high-speed lead screw bearing is characterized in that: the ball bearing comprises an outer ring (9) and an inner ring (10) which are mutually matched and connected, and balls are arranged between the outer ring (9) and the inner ring (10); an outer ring oil groove (6) is formed in the middle of the inner wall of the outer ring (9), and an outer ring first contact point (1) and an outer ring second contact point (2) are formed on the inner wall of the outer ring (9) corresponding to two sides of the outer ring oil groove (6) respectively; an inner ring oil groove (5) is formed in the middle of the inner wall of the inner ring (10), and an inner ring first contact point (3) and an inner ring second contact point (4) are formed on the inner wall of the inner ring (10) corresponding to two sides of the inner ring oil groove (5) respectively; the ball is respectively contacted with the outer ring first contact point (1), the outer ring second contact point (2), the inner ring first contact point (3) and the inner ring second contact point (4).
2. The four-point contact high speed screw bearing of claim 1, wherein: the bearing is characterized in that the outer ring (9) is provided with an outer ring blocking part (9-1) extending in the radial direction, the inner ring (10) is provided with an inner ring blocking part (10-1) extending in the radial direction, and the ball is limited in the axial direction of the bearing through the outer ring blocking part (9-1) and the inner ring blocking part (10-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921774453.4U CN210799723U (en) | 2019-10-22 | 2019-10-22 | Four-point contact type high-speed lead screw bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921774453.4U CN210799723U (en) | 2019-10-22 | 2019-10-22 | Four-point contact type high-speed lead screw bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210799723U true CN210799723U (en) | 2020-06-19 |
Family
ID=71242812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921774453.4U Active CN210799723U (en) | 2019-10-22 | 2019-10-22 | Four-point contact type high-speed lead screw bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210799723U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657158A (en) * | 2019-10-22 | 2020-01-07 | 无锡市第二轴承有限公司 | Four-point contact type high-speed lead screw bearing |
-
2019
- 2019-10-22 CN CN201921774453.4U patent/CN210799723U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657158A (en) * | 2019-10-22 | 2020-01-07 | 无锡市第二轴承有限公司 | Four-point contact type high-speed lead screw bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Four point contact high speed lead screw bearing Effective date of registration: 20220609 Granted publication date: 20200619 Pledgee: Wuxi rural commercial bank Limited by Share Ltd. Pledgor: Wuxi No.2 Bearing Co.,Ltd. Registration number: Y2022320010212 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230328 Granted publication date: 20200619 Pledgee: Wuxi rural commercial bank Limited by Share Ltd. Pledgor: Wuxi No.2 Bearing Co.,Ltd. Registration number: Y2022320010212 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231011 Address after: Building E Workshop, No. 220 Chengnan Road, Xinwu District, Wuxi City, Jiangsu Province, 214000 Patentee after: Wuxi Yulu Precision Industry Co.,Ltd. Address before: No. 1 Lijiang Road, Wangzhuang Street, Xinwu District, Wuxi City, Jiangsu Province, 214028 Patentee before: Wuxi No.2 Bearing Co.,Ltd. |
|
| TR01 | Transfer of patent right |