CN220396283U

CN220396283U - Fixed Cheng Zhixian bearing

Info

Publication number: CN220396283U
Application number: CN202321819785.6U
Authority: CN
Inventors: 朱君伟; 朱彦奇
Original assignee: Lishui Jialida Bearing Co ltd
Current assignee: Lishui Jialida Bearing Co ltd
Priority date: 2023-07-12
Filing date: 2023-07-12
Publication date: 2024-01-26
Anticipated expiration: 2033-07-12

Abstract

The utility model relates to a constant Cheng Zhixian bearing, which comprises an outer ring and an inner ring arranged on the inner side of the outer ring, wherein limit grooves are formed in the inner sides of the left end and the right end of the outer ring, check rings are clamped in the limit grooves, balls are arranged on the inner ring, the balls are in rolling connection with the outer ring, the length of the inner ring is smaller than the distance between the two check rings, the inner ring is fixedly connected on the outer side of a mounting shaft, the outer ring can axially move with the inner ring, the inner ring rolls on the inner side of the outer ring through the balls, the friction is small, the sensitivity is high, the precision is high, the running is stable, the precision requirement on the mounting shaft is low because the outer ring moves relative to the inner ring, the cost is reduced, the length of the inner ring can be manufactured according to the requirement, the bearing can move back and forth within a certain distance, the outer ring can also rotate relative to the inner ring according to the working requirement, and the application range of the bearing is wide.

Description

Fixed Cheng Zhixian bearing

Technical Field

The utility model relates to the field of bearings, in particular to a fixed-distance linear bearing.

Background

The linear bearing is a linear motion system and is used for matching a linear stroke with a cylindrical shaft. The bearing ball is in point contact with the bearing sleeve, and the steel ball rolls with minimum friction resistance, so that the linear bearing has small friction, is stable, does not change along with the speed of the bearing, and can obtain stable linear motion with high sensitivity and high precision. When the linear bearing is used, the linear bearing can move back and forth in a certain distance, and the traditional linear bearing has no limiting structure and is troublesome to use.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a fixed Cheng Zhixian bearing which is provided with a limiting structure, so that the bearing can move back and forth within a certain distance.

The utility model solves the technical problems by adopting the technical scheme that: the fixed Cheng Zhixian bearing comprises an outer ring and an inner ring arranged on the inner side of the outer ring, wherein limit grooves are formed in the inner sides of the left end and the right end of the outer ring, check rings are clamped in the limit grooves, balls are arranged on the inner ring, the balls are in rolling connection with the outer ring, the length of the inner ring is smaller than the distance between the two check rings, the inner ring is fixedly connected on the outer side of a mounting shaft, the outer ring can axially move with the inner ring, the inner ring rolls on the inner side of the outer ring through the balls, the friction is small, the sensitivity is high, the precision is high, and the operation is stable, because the outer ring moves relative to the inner ring, the precision requirement on the mounting shaft is low, the cost is reduced, the length of the inner ring can be manufactured according to the requirement, the bearing can move back and forth in a certain distance, the outer ring can also rotate relative to the inner ring, and the application range of the bearing is wide.

In order to further improve, the balls are uniformly distributed at equal intervals, and the balls of two adjacent circles are distributed in a staggered mode, so that space is saved, and the using effect of the bearing is better.

Further perfecting, the through holes on the inner ring are arranged at the corresponding positions of the balls, so that the lubricating effect of the balls is better.

Further perfecting, the oil inlet holes are formed in the left end and the right end of the outer ring, so that the bearing is more convenient to use.

Further perfecting, both ends all are equipped with the external screw thread about the outer lane, and the external screw thread outside all threaded connection has the go-between, and the go-between is close to inner circle one end and opens there is the mounting groove, installs the solid fixed ring in the mounting groove, and gu fixed ring inboard fixedly connected with dust ring for the bearing can prevent dust, makes different operational environment's needs.

Further perfection, the dust ring is kept away from the slope of inner circle one end outside direction near dust ring one end for the dust effect of dust ring is better.

Further perfecting, the dust ring outside is equipped with the annular of opening on the solid fixed ring, and the dust that the dust ring scooped up can be piled up to the annular, and the annular can reduce stress concentration for the result of use of bearing is better.

Further perfects, be equipped with the constant head tank of opening in the outer lane outside on the inlet port for the bearing uses more convenient.

Further perfection, the spacing groove is kept away from inner circle one end and is equipped with the recess of opening on outer circle for the retaining ring installation is more convenient.

Further perfecting, the inner sides of the left end and the right end of the inner ring are provided with chamfers, so that the bearing is more convenient to install.

The beneficial effects of the utility model are as follows: the utility model has a limit structure, so that the bearing can move back and forth within a certain distance, the inner ring is fixedly connected to the outer side of the mounting shaft, the outer ring can axially move with the inner ring, the inner ring rolls on the inner side of the outer ring through the balls, the friction is small, the sensitivity is high, the precision is high, and the operation is stable.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view of the present utility model;

FIG. 3 is a schematic view of the outer ring of the present utility model;

FIG. 4 is a schematic view of the inner ring structure of the present utility model;

FIG. 5 is a schematic diagram of the structure of the present utility model;

FIG. 6 is a cross-sectional view of the present utility model;

fig. 7 is a schematic structural view of the outer ring of the present utility model.

Reference numerals illustrate: 1. an outer ring; 11. a limit groove; 111. a groove; 12. a retainer ring; 13. an oil inlet hole; 131. a positioning groove; 14. an external thread; 2. an inner ring; 21. a ball; 22. a through hole; 3. a connecting ring; 31. a mounting groove; 32. a dust-proof ring; 33. a fixing ring; 331. and a ring groove.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

as shown in fig. 1-4: the fixed Cheng Zhixian bearing comprises an outer ring 1, an inner ring 2 arranged on the inner side of the outer ring 1, limiting grooves 11 are formed in the inner sides of the left end and the right end of the outer ring 1, check rings 12 are clamped in the limiting grooves 11, balls 21 are arranged on the inner ring 2 and are in rolling connection with the outer ring 1, the length of the inner ring 2 is smaller than the distance between the two check rings 12, the balls 21 are uniformly distributed in a plurality of equal intervals, the balls 21 of two adjacent rings are distributed in a staggered mode, through holes 22 formed in positions corresponding to the balls 21 are formed in the inner ring 2, oil inlet holes 13 are formed in the left end and the right end of the outer ring 1, positioning grooves 131 formed in the outer side of the outer ring 1 are formed in the oil inlet holes 13, grooves 111 formed in one end, far away from the inner ring 2, of the limiting grooves 11 are formed in the inner sides of the left end and the right end of the inner ring 2, and chamfer angles are formed in the inner side of the left end and the inner ring 2.

As shown in fig. 5-7: the outer ring 1 is provided with external threads 14 at the left and right ends, the outer side of the external threads 14 is connected with a connecting ring 3 in a threaded manner, one end of the connecting ring 3 close to the inner ring 2 is provided with a mounting groove 31, a fixed ring 33 is mounted in the mounting groove 31, the inner side of the fixed ring 33 is fixedly connected with a dustproof ring 32, one end, far away from the inner ring 2, of the dustproof ring 32 is inclined towards one end, close to the dustproof ring 32, of the outer side of the dustproof ring 32, and an annular groove 331 formed in the fixed ring 33 is formed in the outer side of the dustproof ring 32.

The utility model is used when in use: the inner ring 2 is fixedly connected to the outer side of the mounting shaft, the mounting shaft is in interference fit with the inner ring 2, the outer ring 1 is fixedly connected with a part needing to be moved, the inner ring 2 rolls on the inner side of the outer ring 1 through the balls 21, the outer ring 1 can axially move with the inner ring 2, the outer ring 1 can also rotate relative to the inner ring 2, lubricating oil can be added to the balls 21 through the oil inlet 13, and therefore the rolling effect of the balls 21 is better.

While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the utility model.

Claims

1. The utility model provides a decide Cheng Zhixian bearing, includes outer lane (1), installs inner circle (2) inboard at outer lane (1), characterized by: limiting grooves (11) are formed in the inner sides of the left end and the right end of the outer ring (1), check rings (12) are clamped in the limiting grooves (11), balls (21) are arranged on the inner ring (2), the balls (21) are in rolling connection with the outer ring (1), and the length of the inner ring (2) is smaller than the distance between the two check rings (12).

2. A constant Cheng Zhixian bearing according to claim 1, wherein: the balls (21) are distributed uniformly in a plurality of equal intervals, and the balls (21) of two adjacent circles are distributed in a staggered mode.

3. A constant Cheng Zhixian bearing according to claim 2, wherein: the ball (21) is provided with a through hole (22) which is arranged on the inner ring (2) at a corresponding position.

4. A constant Cheng Zhixian bearing according to claim 1, wherein: oil inlet holes (13) are formed in the left end and the right end of the outer ring (1).

5. A constant Cheng Zhixian bearing according to claim 1, wherein: both ends all are equipped with external screw thread (14) about outer lane (1), and external screw thread (14) outside all threaded connection has go-between (3), and go-between (3) are close to inner circle (2) one end and are opened have mounting groove (31), install solid fixed ring (33) in mounting groove (31), and gu fixed ring (33) inboard fixedly connected with dust ring (32).

6. A constant Cheng Zhixian bearing according to claim 5, wherein: the outer side of one end of the dustproof ring (32) far away from the inner ring (2) is inclined towards one end close to the dustproof ring (32).

7. A constant Cheng Zhixian bearing according to claim 6, wherein: the outer side of the dustproof ring (32) is provided with a ring groove (331) which is arranged on the fixed ring (33).

8. A constant Cheng Zhixian bearing according to claim 4, wherein: the oil inlet hole (13) is provided with a positioning groove (131) which is arranged on the outer side of the outer ring (1).

9. A constant Cheng Zhixian bearing according to claim 1, wherein: one end of the limit groove (11) far away from the inner ring (2) is provided with a groove (111) which is arranged on the outer ring (1).

10. A constant Cheng Zhixian bearing according to claim 1, wherein: chamfer angles are arranged on the inner sides of the left end and the right end of the inner ring (2).