CN212003978U

CN212003978U - Precision machining bearing

Info

Publication number: CN212003978U
Application number: CN202020400099.5U
Authority: CN
Inventors: 邸小兵
Original assignee: Jiangsu Shuangzheng Machinery Co ltd
Current assignee: Jiangsu Shuangzheng Machinery Co ltd
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2020-11-24
Anticipated expiration: 2030-03-26

Abstract

The utility model discloses a precision finishing bearing, including the bearing inner race, the bearing inner race cooperation is provided with the bearing inner race, bearing inner race and bearing inner race all are equipped with the raceway, raceway swing joint has the ball, the ball cooperation is connected with the holder, the bearing inner race cover is equipped with the apron, the one end and the apron fixed connection of holder, the other end and the bearing inner race fixed connection of holder, the bearing inner race is equipped with the keyway. The utility model discloses simple structure, convenient operation, design scientific and reasonable through setting up the precision finishing bearing of a high leakproofness, has effectively improved the dustproof sealed effect of bearing, and the device is equipped with dedicated oiling pore simultaneously, avoids operating personnel's dismantlement work can directly carry out the lubricated work of oiling to the bearing is inside, has kept the leakproofness and the precision of bearing, increases the life of bearing, improves economic benefits.

Description

Precision machining bearing

Technical Field

The utility model relates to a bearing technical field especially relates to a precision finishing bearing.

Background

The bearing is an important part in modern mechanical equipment, the main function of the bearing is to support a mechanical rotating body, reduce the friction coefficient in the moving process and ensure the rotation precision of the mechanical rotating body, and the bearing can be divided into two categories, namely a rolling bearing and a sliding bearing according to the difference of the friction properties of moving elements. With the increasing demand of people for the performance of bearings, the production technology of bearings is also continuously improved.

In the prior art, most of common bearings on the market have the problem of low sealing performance, the bearings are easy to enter impurities such as dust and the like in the long-term use process, the service life of the bearings is shortened, and meanwhile, when the bearings are lubricated regularly, the sealing performance inside the bearings cannot be guaranteed, and the use precision of the bearings is reduced.

Therefore, we propose a precision-machined bearing to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem of poor sealing performance of the bearing in the prior art and providing a precision finishing bearing.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a precision finishing bearing, includes the bearing inner race, the bearing inner race cooperation is provided with the bearing inner race, bearing inner race and bearing inner race all are equipped with the raceway, raceway swing joint has the ball, the ball cooperation is connected with the holder, bearing inner race cover is equipped with the apron, the one end and the apron fixed connection of holder, the other end and the bearing inner race fixed connection of holder, the bearing inner race is equipped with the keyway.

Preferably, the raceways include a first raceway and a second raceway, the diameter dimensions of the raceways being slightly larger than the diameter dimensions of the balls.

Preferably, an arc-shaped groove is formed in one end, far away from the bearing outer ring, of the second raceway.

Preferably, an oil injection pore channel is arranged at one end, far away from the cover plate, of the bearing inner ring, the oil injection pore channel is communicated with the roller paths, and a connecting hole is arranged between every two adjacent roller paths.

Preferably, bearing inner race and bearing outer race all are equipped with the seal groove, apron and seal groove cooperation setting.

Preferably, the balls are uniformly arranged between the bearing outer ring and the bearing inner ring through the retainer.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model has the advantages that the high-tightness precision processing bearing is arranged, the bearing is effectively prevented from entering impurities such as dust and the like in the long-term use process, the dustproof sealing effect of the bearing is improved, and the service life of the bearing is prolonged;

2. the utility model solves the problem of oil injection of the high-tightness bearing by arranging a special oil injection hole road for the bearing, keeps the tightness and precision of the bearing in the using process, prolongs the service life of the bearing and improves the economic benefit;

3. the utility model discloses a set up the arc wall to the second raceway for the bearing rolls the work through the raceway lateral wall of second raceway both sides in the use, makes the bearing carrying capacity when carrying out axial work stronger, improves the life of device, increases the practicality of device.

Drawings

Fig. 1 is a schematic structural view of a precision machining bearing according to the present invention;

fig. 2 is a side view of the structure of fig. 1.

In the figure: the bearing comprises a bearing outer ring 1, a bearing inner ring 2, a raceway 3, a first raceway 31, a second raceway 32, an arc-shaped groove 33, balls 4, a retainer 5, a cover plate 6, a key groove 7, an oil injection pore passage 8, a connecting hole 81 and a sealing groove 9.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a precision machining bearing, including bearing inner race 1, bearing inner race 2 is provided with in the cooperation of bearing inner race 1, bearing inner race 1 and bearing inner race 2 all are equipped with raceway 3, raceway 3 swing joint has ball 4, it should be noted that, bearing inner race 1 and bearing inner race 2 all adopt the annular structure of conventional formula, raceway 3 includes first raceway 31 and second raceway 32, the diameter size of first raceway 31 is the same with second raceway 32, and the diameter size of raceway 3 slightly is greater than the diameter size of ball 4, the centre leaves the clearance, make ball 4 roll smoothly through the clearance when rolling in raceway 3, the existence of clearance is convenient for the lubricated protection of lubricating oil to ball 4 simultaneously.

Further, the one end that bearing inner race 1 was kept away from to second raceway 32 is equipped with arc groove 33, and it should be noted that, the design of arc groove 33 makes the bearing can roll the work through the raceway lateral wall of second raceway 32 both sides in the use for the bearing is stronger when carrying out axial work bearing capacity, and life is longer, increases the practicality of device, improves economic benefits.

Further, 1 cover of bearing inner race is equipped with apron 6, and it should be noted that, bearing inner race 1 and bearing inner race 2 all are equipped with seal groove 9, and apron 6 and the cooperation of seal groove 9 set up, have improved the dustproof sealing effect of bearing, effectively avoid the bearing to influence the normal use of bearing at the inside impurity such as entering dust of long-term in-process of using, improve the life of bearing.

Further, ball 4 cooperation is connected with holder 5, the one end and the apron 6 fixed connection of holder 5, the other end and the bearing inner race 1 fixed connection of holder 5, it should be noted that, ball 4 passes through holder 5 align to grid between bearing inner race 2 and bearing outer race 1, holder 5 stably keeps ball 4 for ball 4 can not take place the skew in the use, guarantees the normal use of bearing, makes the bearing can rotate the work smoothly.

Further, bearing inner race 2 keeps away from the one end of apron 6 and is equipped with oiling pore 8, oiling

pore

8 and 3 intercommunication settings of raceway, be equipped with even hole 81 between the adjacent raceway 3, it is worth mentioning, oiling hole 8's oiling mouth seals through sealed subsides, oiling pore 8 is inside to the bearing through the oiling mouth in the use, lubricating oil lubricates protection ball 4 in getting into raceway 3 through oiling pore 8, lubricating oil supplies oil to raceway 3 through even hole 81 between the adjacent raceway 3, the oiling problem of leakproofness bearing has effectively been solved, leakproofness and the precision in the bearing use have been kept, the life of bearing is prolonged, economic benefits is improved.

Further, the bearing inner ring 2 is provided with a key groove 7, and a worker connects the rotating body through the key groove 7.

Now, the operation principle of the present invention is described as follows:

the utility model discloses during the use, connect the rotator through keyway 7, ball 4 rolls through first raceway 31 and second raceway 32 when the device uses, the roll in-process, ball 4 is close to bearing inner race 2's one end because the existence of arc wall 33 can only roll through the both sides wall of second raceway 32, improve the bearing and hold the lotus ability at axial working process, holder 5 keeps the both sides of ball 4, apron 6 seals the protection to the bearing use, avoid inside dust etc. get into the bearing, the staff regularly carries out oiling work to the bearing inside through oiling pore 8, improve the accurate system that the bearing used.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a precision finishing bearing, includes bearing inner race (1), its characterized in that, bearing inner race (1) cooperation is provided with bearing inner race (2), bearing inner race (1) and bearing inner race (2) all are equipped with raceway (3), raceway (3) swing joint has ball (4), ball (4) cooperation is connected with holder (5), bearing inner race (1) cover is equipped with apron (6), the one end and apron (6) fixed connection of holder (5), the other end and bearing inner race (1) fixed connection of holder (5), bearing inner race (2) are equipped with keyway (7).

2. A precision-machined bearing according to claim 1, characterized in that the raceway (3) comprises a first raceway (31) and a second raceway (32), the diameter dimension of the raceway (3) being slightly larger than the diameter dimension of the balls (4).

3. A precision-machined bearing according to claim 2, characterized in that the end of the second raceway (32) remote from the bearing outer ring (1) is provided with an arcuate groove (33).

4. The precision machining bearing of claim 1, characterized in that an oil injection hole (8) is formed in one end, away from the cover plate (6), of the bearing inner ring (2), the oil injection hole (8) is communicated with the raceways (3), and connecting holes (81) are formed between adjacent raceways (3).

5. A precision processing bearing according to claim 1, wherein the bearing outer ring (1) and the bearing inner ring (2) are provided with a sealing groove (9), and the cover plate (6) and the sealing groove (9) are arranged in a matching manner.

6. A precision machined bearing according to claim 1, characterized in that the balls (4) are arranged uniformly between the outer bearing ring (1) and the inner bearing ring (2) by means of a cage (5).