CN213451319U

CN213451319U - Wear-resisting deep groove ball bearing

Info

Publication number: CN213451319U
Application number: CN202021229012.9U
Authority: CN
Inventors: 刁建荣
Original assignee: Zhenjiang Baorui Bearing Co ltd
Current assignee: Zhenjiang Baorui Bearing Co ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-06-15
Anticipated expiration: 2030-06-29

Abstract

The utility model discloses a wear-resisting deep groove ball bearing, including first outer lane, first outer lane outer wall one side is equipped with the second outer lane, first outer lane and second outer lane inner peripheral surface are opened there is the circular arc track, roll connection has the rolling element in the circular arc track, the outside roll connection of rolling element has the holder, the holder inner peripheral surface is equipped with the ring board, ring board inner peripheral surface fixedly connected with inner circle, inner circle outer peripheral face and rolling element roll connection. The utility model discloses a fill lubricating grease between inner circle, two ring plates, rolling element and the holder for bearing during operation, rolling element surface can be stained with lubricating grease, and lubricating grease has reduced coefficient of friction, has both reduced the heat that the friction produced, has reduced the wearing and tearing of rolling element and holder again, has improved life, and when rolling element or holder appear damaging, the easy exchange of following need not abandon whole bearing, has reduced use cost.

Description

Wear-resisting deep groove ball bearing

Technical Field

The utility model relates to a bearing technical field, concretely relates to wear-resisting deep groove ball bearing.

Background

The original name single-row radial ball bearing of a deep groove ball bearing (GB/T276-2003) is the most widely applied rolling bearing, and the deep groove ball bearing is the most commonly used rolling bearing. It has simple structure and convenient use. The bearing is mainly used for bearing radial load, but when the radial play of the bearing is increased, the bearing has certain performance of an angular contact ball bearing and can bear combined radial and axial load. When the rotating speed is high and the thrust ball bearing is not suitable to be adopted, the thrust ball bearing can be used for bearing pure axial load. Compared with other types of bearings with the same specification and size of the deep groove ball bearing, the bearing has the advantages of small friction coefficient and high limit rotating speed. But is not impact resistant and is not suitable for bearing heavy loads.

However, when the deep groove ball bearing is actually used, the main technical problems are that the damage of the deep groove ball bearing mostly occurs to the retainer and the rolling body, the rolling body is in rolling friction in the retainer for a long time, so that the retainer and the rolling body are seriously worn out, the damage can not be repaired, the bearing needs to be replaced to ensure the running precision of equipment, and the bearing cost is increased.

Therefore, there is a need for a wear-resistant deep groove ball bearing to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a wear-resisting deep groove ball bearing, through the inner circle, two ring plates, fill lubricating grease between rolling element and the holder, make the bearing during operation, the rolling element surface can be stained with lubricating grease, all have hardness height through carbonization titanium layer and titanium boride layer, crack resistance is strong advantage, therefore the antifriction ability of inner circle outer peripheral face and circular arc rail surface is strong, the rolling element is difficult for producing wearing and tearing when the motion, when rolling element or holder appear damaging, follow easily and trade, need not abandon whole bearing, with the above-mentioned weak point in the solution technique.

In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a wear-resisting deep groove ball bearing, includes first outer lane, first outer lane outer wall one side is equipped with the second outer lane, first outer lane and second outer lane inner peripheral surface are opened there is the circular arc track, roll connection has the rolling element in the circular arc track, the outside roll connection of rolling element has the holder, the holder inner peripheral surface is equipped with the ring board, ring board inner peripheral surface fixedly connected with inner circle, inner circle outer peripheral surface and rolling element roll connection, first outer lane is close to second outer lane one side and opens threaded hole, the inside through-going of second outer lane has the counter bore, the axis of counter bore coincides with the axis of screw hole, sliding connection has the bolt in the counter bore, bolt and screw hole threaded connection.

Preferably, the number of the rolling bodies is multiple, and the multiple rolling bodies are equidistantly distributed in the retainer.

Preferably, the rolling element is spherical, the rolling element is a ZGCr15 material, and the retainer is a GCr15 material.

Preferably, the outer peripheral surface of the inner ring and the surface of the arc track are both provided with wear-resistant layers, and each wear-resistant layer comprises a titanium carbide layer and a titanium boride layer.

Preferably, the number of the circular ring plates is two, the two circular ring plates are symmetrically distributed on two sides of the outer peripheral surface of the inner ring, and the two circular ring plates are in interference connection with the retainer.

Preferably, the number of the counter bores is set to be a plurality of, and a plurality of counter bores are distributed on one side of the outer wall of the second outer ring in an annular array.

Preferably, grease is filled between the retainer, the rolling body, the inner ring and the two circular ring plates.

In the technical scheme, the utility model provides a technological effect and advantage:

the inner ring, the two ring plates and the lubricating grease are filled between the rolling body and the retainer, so that the lubricating grease is adhered to the surface of the rolling body when the bearing works, the friction coefficient of the lubricating grease is reduced, heat generated by friction is reduced, abrasion of the rolling body and the retainer is reduced, the service life is prolonged, meanwhile, the outer peripheral surface of the inner ring and the surface of the circular arc track are both provided with wear-resistant layers, the titanium carbide layer and the titanium boride layer have the advantages of high hardness and strong crack resistance, and therefore, the friction resistance of the outer peripheral surface of the inner ring and the surface of the circular arc track is strong, the rolling body is not easy to abrade during movement, the compression resistance and the wear resistance of the bearing are improved, when the rolling body or the retainer is damaged, the follow-up replacement is.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the connection between the first outer ring and the rolling body according to the present invention;

fig. 3 is a cross-sectional view of the present invention;

FIG. 4 is a schematic view of the connection between the rolling elements and the retainer of the present invention;

fig. 5 is a perspective view of a second outer ring of the present invention.

Description of reference numerals:

the rolling bearing comprises a first outer ring 1, a second outer ring 2, a circular arc track 3, a rolling body 4, a retainer 5, a circular ring plate 6, an inner ring 7, a threaded hole 8, a countersunk hole 9 and a bolt 10.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

The utility model provides a wear-resistant deep groove ball bearing as shown in figures 1-5, which comprises a first outer ring 1, a second outer ring 2 is arranged on one side of the outer wall of the first outer ring 1, circular arc tracks 3 are arranged on the inner circumferential surfaces of the first outer ring 1 and the second outer ring 2, a rolling body 4 is connected in the arc track 3 in a rolling way, a retainer 5 is connected outside the rolling body 4 in a rolling way, the inner peripheral surface of the retainer 5 is provided with a circular ring plate 6, the inner peripheral surface of the circular ring plate 6 is fixedly connected with an inner ring 7, the peripheral surface of the inner ring 7 is in rolling connection with the rolling body 4, one side of the first outer ring 1 close to the second outer ring 2 is provided with a threaded hole 8, a counter bore 9 penetrates through the second outer ring 2, the central axis of the counter bore 9 is superposed with the central axis of the threaded hole 8, a bolt 10 is connected in the countersunk hole 9 in a sliding mode, and the bolt 10 is in threaded connection with the threaded hole 8.

Furthermore, in the above technical solution, the number of the rolling elements 4 is set to be a plurality, the plurality of rolling elements 4 are equidistantly distributed inside the retainer 5, and the plurality of rolling elements 4 improve the stability of the bearing during rotation and improve the bearing capacity of the bearing.

Furthermore, in the above technical solution, the rolling elements 4 are spherical, the rolling elements 4 are ZGCr15 material members, the cage 5 is GCr15 material members, the rolling elements 4 are spherical, so that the service life of the rolling elements 4 is prolonged, the rolling elements 4 are ZGCr15 material members, and the cage 5 is GCr15 material members, so that the overall performance of the bearing is improved.

Furthermore, in the above technical scheme, the outer peripheral surface of the inner ring 7 and the surface of the arc track 3 are both provided with a wear-resistant layer, the wear-resistant layer comprises a titanium carbide layer and a titanium boride layer, and the titanium carbide layer and the titanium boride layer have the advantages of high hardness and strong crack resistance, so that the outer peripheral surface of the inner ring 7 and the surface of the arc track 3 have strong friction resistance, and the rolling element 4 is not easy to wear during movement, thereby improving the compression resistance and wear resistance of the bearing and prolonging the service life of the bearing.

Further, in the above technical solution, the number of the ring plates 6 is two, the two ring plates 6 are symmetrically distributed on two sides of the outer peripheral surface of the inner ring 7, the two ring plates 6 and the retainer 5 are in interference connection, and the two ring plates 6 prevent the grease from leaking between the retainer 5 and the inner ring 7.

Further, in the above technical scheme, the number of counter sink 9 sets up to a plurality of, and a plurality of counter sink 9 are annular array and distribute in 2 outer wall one sides of second outer lane, through the bolt 10 in a plurality of counter sink 9, have improved the connection stability of first outer lane 1 and second outer lane 2.

Furthermore, in the above technical solution, grease is filled between the cage 5, the rolling element 4, the inner ring 7 and the two circular ring plates 6, and the friction coefficient of the rolling element 4 during rolling is reduced by the grease, so that wear is reduced, and the service life is prolonged.

The implementation mode is specifically as follows: the bearing is mounted by placing a first outer ring 1 on a plane, enabling a threaded hole 8 to face upwards, moving an inner ring 7, enabling a circular ring plate 6 to be in interference connection with a retainer 5, injecting lubricating grease between two circular ring plates 6 and the retainer 5, then enabling a rolling body 4 to be in sliding connection with the retainer 5, enabling the rolling body 4 to be located in an arc track 3, then placing a second outer ring 2 on the first outer ring 1, inserting a bolt 10 into a countersunk hole 9, screwing the bolt 10, enabling the bolt 10 to be in threaded connection with the threaded hole 8, completing the installation of the bearing, when the inner ring 7 rotates, the inner ring 7 drives the circular ring plates 6 to rotate, the circular ring plates 6 drive the retainer 5 to rotate, the retainer 5 drives the rolling body 4 to roll in the arc track 3, the rolling body 4 rotates, so that the surface is adhered with lubricating grease, lubricating the arc track 3 is lubricated by the lubricating grease, and when the rolling body 4 or the, the bearing is taken down, the bolt 10 is screwed out, then the retainer 5 or the rolling body 4 is taken out, the new retainer 5 or the new rolling body 4 is replaced, then the installation of the bearing is completed according to the method, lubricating grease is filled among the inner ring 7, the two annular plates 6, the rolling body 4 and the retainer 5, so that when the bearing works, the surface of the rolling body 4 is adhered with the lubricating grease, the friction coefficient is reduced by the lubricating grease, the heat generated by friction is reduced, the abrasion of the rolling body 4 and the retainer 5 is reduced, the service life is prolonged, meanwhile, the outer peripheral surface of the inner ring 7 and the surface of the arc track 3 are both provided with abrasion resistant layers, and the titanium carbide layer and the titanium boride layer both have the advantages of high hardness and strong crack resistance, so the abrasion resistance of the outer peripheral surface of the inner ring 7 and the surface of the arc track 3 is strong, and the rolling body 4 is not, and when the rolling element 4 or the retainer 5 is damaged, the replacement is easy to be carried out, the whole bearing does not need to be discarded, and the use cost is reduced, the embodiment specifically solves the problems that the damage of the deep groove ball bearing in the prior art is mostly generated on the retainer 5 and the rolling element 4, the rolling element 4 is subjected to long-time rolling friction in the retainer 5, the retainer 5 and the rolling element 4 are subjected to severe fatigue wear, the damage cannot be repaired, the bearing needs to be replaced to ensure the operation precision of equipment, and the bearing cost is increased.

This practical theory of operation:

referring to the attached drawings 1-5 of the specification, a first outer ring 1 is placed on a plane, a threaded hole 8 faces upwards, an inner ring 7 is moved, a circular ring plate 6 is in interference connection with a retainer 5, lubricating grease is injected between the two circular ring plates 6 and the retainer 5, then a rolling body 4 is in sliding connection with the retainer 5, the rolling body 4 is located in an arc track 3, then a second outer ring 2 is placed on the first outer ring 1, a bolt 10 is inserted into a countersunk hole 9, the bolt 10 is screwed, the bolt 10 is in threaded connection with the threaded hole 8, the bearing is installed, when the inner ring 7 rotates, the inner ring 7 drives the circular ring plate 6 to rotate, the retainer 5 drives the rolling body 4 to roll in the arc track 3, the rolling body 4 rotates, lubricating grease adheres to the surface of the arc track 3, and when the rolling body 4 or the retainer 5 is worn after long-time work, and (3) taking off the bearing, screwing out the bolt 10, taking out the retainer 5 or the rolling body 4, replacing the new retainer 5 or the new rolling body 4, and then completing the installation of the bearing according to the method.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. The utility model provides a wear-resisting deep groove ball bearing, includes first outer lane (1), its characterized in that: a second outer ring (2) is arranged on one side of the outer wall of the first outer ring (1), an arc track (3) is arranged on the inner circumferential surfaces of the first outer ring (1) and the second outer ring (2), a rolling body (4) is connected to the inner circumference of the arc track (3) in a rolling manner, a retainer (5) is connected to the outer portion of the rolling body (4) in a rolling manner, a circular ring plate (6) is arranged on the inner circumferential surface of the retainer (5), an inner ring (7) is fixedly connected to the inner circumferential surface of the circular ring plate (6), the outer circumferential surface of the inner ring (7) is connected to the rolling body (4) in a rolling manner, a threaded hole (8) is formed in one side, close to the second outer ring (2), of the first outer ring (1), a counter bore (9) penetrates through the second outer ring (2), the central axis of the counter bore (9) is coincided, the bolt (10) is in threaded connection with the threaded hole (8).

2. A wear-resistant deep groove ball bearing according to claim 1, characterized in that: the number of the rolling bodies (4) is set to be a plurality, and the rolling bodies (4) are distributed in the retainer (5) at equal intervals.

3. A wear-resistant deep groove ball bearing according to claim 1, characterized in that: the rolling bodies (4) are spherical, the rolling bodies (4) are ZGCr15 material members, and the retainer (5) is GCr15 material members.

4. A wear-resistant deep groove ball bearing according to claim 1, characterized in that: and the outer peripheral surface of the inner ring (7) and the surface of the arc track (3) are both provided with wear-resistant layers, and each wear-resistant layer comprises a titanium carbide layer and a titanium boride layer.

5. A wear-resistant deep groove ball bearing according to claim 1, characterized in that: the number of the circular ring plates (6) is two, the two circular ring plates (6) are symmetrically distributed on two sides of the outer peripheral surface of the inner ring (7), and the two circular ring plates (6) are in interference connection with the retainer (5).

6. A wear-resistant deep groove ball bearing according to claim 1, characterized in that: the number of the counter sink holes (9) is set to be a plurality of, and the counter sink holes (9) are distributed on one side of the outer wall of the second outer ring (2) in an annular array mode.

7. A wear-resistant deep groove ball bearing according to claim 5, characterized in that: lubricating grease is filled between the retainer (5), the rolling body (4), the inner ring (7) and the two circular ring plates (6).