CN213176463U

CN213176463U - Single-row angular contact bearing

Info

Publication number: CN213176463U
Application number: CN202021262761.1U
Authority: CN
Inventors: 刁建荣
Original assignee: Zhenjiang Baorui Bearing Co ltd
Current assignee: Zhenjiang Baorui Bearing Co ltd
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2021-05-11
Anticipated expiration: 2030-07-01

Abstract

The utility model discloses a single-row angular contact bearing, comprising an outer ring, the inside opening of outer lane has the hole of placing, outer lane one end is run through and is had first through-hole, the outer lane inner peripheral surface is opened there is first circular arc groove, it has the inner circle to place hole inner peripheral surface sliding connection, inner circle one end is run through and is had the second through-hole, the inner circle inner peripheral surface is opened there is second circular arc groove, the inner circle inner peripheral surface is opened there is the rolling groove, the inside holder that is equipped with of inner circle, the holder outer peripheral face is opened there is third circular arc groove, the inside roll connection of third circular arc inslot has the roller. The utility model discloses a roll connection between first semicircle ball and first circular arc groove, second semicircle ball and second circular arc groove and cylinder and rolling groove, the third circular arc groove for when the transmission shaft drives the inner circle and rotates, work that this bearing can be stable, the transmission is stable simultaneously, and the epaxial axial force of transmission can be by fine offset of this bearing, can not influence the transmission that the transmission shaft is normal.

Description

Single-row angular contact bearing

Technical Field

The utility model relates to a bearing technical field, concretely relates to single-row angular contact bearing.

Background

The single-row angular contact ball bearing can only bear axial load in one direction. When the bearing bears pure radial load, because the load action line of the rolling body and the radial load action line are not in the same radial plane, internal axial component force is generated, and therefore the bearing needs to be installed and used in pairs, is mainly used in the high-speed rotation situation with light load, and requires high precision, high rotating speed, low temperature rise and decrease vibration and certain service life. The supporting parts which are often used as high-speed electric spindles are installed and used in pairs and are key matching parts of the high-speed electric spindles of the internal surface grinding machine.

However, in practical use, the single-row angular contact ball bearing mounted on the transmission shaft has the main technical problems of small axial force capable of being counteracted and serious abrasion.

Therefore, it is necessary to provide a single row angular contact bearing to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a single-row angular contact bearing, through the roll connection between first semicircle ball and first circular arc groove, second semicircle ball and second circular arc groove and cylinder and rolling groove, third circular arc groove, the epaxial axial force of transmission can be by fine the offsetting of this bearing, reduces the wearing and tearing of roller to solve the above-mentioned weak point in the technique.

In order to achieve the above object, the present invention provides the following technical solutions: the single-row angular contact bearing comprises an outer ring, wherein a placing hole is formed in the outer ring, a first through hole penetrates through one end of the outer ring, a first arc groove is formed in the inner circumferential surface of the outer ring, an inner ring is connected to the inner circumferential surface of the placing hole in a sliding mode, a second through hole penetrates through one end of the inner ring, a second arc groove is formed in the inner circumferential surface of the inner ring, a rolling groove is formed in the inner circumferential surface of the inner ring, a retainer is arranged in the inner ring, a third arc groove is formed in the outer circumferential surface of the retainer, a roller is connected to the inner portion of the third arc groove in a rolling mode, a first semi-sphere is fixedly connected to one end of the roller, the first semi-sphere is connected with the first arc groove in a rolling mode, a second semi-sphere is fixedly connected.

Preferably, the number of the third arc grooves is multiple, and the third arc grooves are distributed on the outer peripheral surface of the retainer in a circumferential array.

Preferably, the diameter of the first through hole is larger than that of the second through hole, and the central axis of the first through hole coincides with that of the second through hole.

Preferably, the roller, the first hemisphere and the second hemisphere are made of ZGCr15 material.

Preferably, the holder is made of GCr15 material.

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

through first semicircle ball and first circular arc groove, second semicircle ball and second circular arc groove and cylinder and roll groove, roll connection between the third circular arc groove, when making the transmission shaft drive the inner circle and rotate, this bearing can stable work, the transmission is stable simultaneously, and the epaxial axial force of transmission can be by fine offset of this bearing, can not influence the normal transmission of transmission shaft, this bearing installation is simple, the roller of damage is changed easily, can offset great axial force, reduce the wearing and tearing of roller, the application scope of this bearing is improved.

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 cross-sectional view of the outer ring of the present invention;

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

fig. 4 is a perspective view of the retainer of the present invention;

FIG. 5 is a schematic view of the connection between the retainer and the roller according to the present invention;

fig. 6 is a perspective view of the present invention.

Description of reference numerals:

the roller comprises an outer ring 1, a placing hole 2, a first through hole 3, a first arc groove 4, an inner ring 5, a second through hole 6, a second arc groove 7, a rolling groove 8, a retainer 9, a third arc groove 10, a roller 11, a first hemisphere 12 and a second hemisphere 13.

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 single-row angular contact bearing as shown in figures 1-6, which comprises an outer ring 1, wherein a placing hole 2 is arranged in the outer ring 1, a first through hole 3 is arranged at one end of the outer ring 1, a first arc groove 4 is arranged on the inner peripheral surface of the outer ring 1, an inner ring 5 is connected on the inner peripheral surface of the placing hole 2 in a sliding way, a second through hole 6 is arranged at one end of the inner ring 5 in a penetrating way, a second arc groove 7 is arranged on the inner peripheral surface of the inner ring 5, a rolling groove 8 is arranged on the inner peripheral surface of the inner ring 5, a retainer 9 is arranged in the inner ring 5, a third arc groove 10 is arranged on the outer peripheral surface of the retainer 9, a roller 11 is connected in a rolling way in the third arc groove 10, one end of the roller 11 is fixedly connected with a first semi-sphere 12, the first semi-sphere 12 is connected with the first arc groove, and the second semi-sphere 13 is in rolling connection with the second arc groove 7.

Furthermore, in the above technical solution, the number of the third arc grooves 10 is set to be a plurality, the third arc grooves 10 are distributed on the outer peripheral surface of the retainer 9 in a circumferential array, and the plurality of rollers 11 are in rolling connection with the rolling grooves 8 through the plurality of rollers 11 in the third arc grooves 10, so that the motion relationship between the inner ring 5 and the outer ring 1 is in rolling connection, heat generated by friction during motion is reduced, and the stability of motion is improved.

Further, in the above technical solution, the diameter of the first through hole 3 is greater than the diameter of the second through hole 6, the central axis of the first through hole 3 coincides with the central axis of the second through hole 6, and the diameter of the first through hole 3 is greater than the diameter of the second through hole 6, so that the transmission shaft cannot be connected with the first through hole 3 when inserted into the second through hole 6.

Furthermore, in the above technical solution, the roller 11, the first hemisphere 12 and the second hemisphere 13 are made of ZGCr15 material components, and the roller 11, the first hemisphere 12 and the second hemisphere 13 are made of ZGCr15 material components, so that the temperature ranges of the roller 11, the first hemisphere 12 and the second hemisphere 13 are increased, and the roller can be used under the condition of large impact vibration.

Furthermore, in the above technical solution, the retainer 9 is a GCr15 material member, and the retainer 9 is a GCr15 material member, so that the service life, the contact fatigue strength, the wear resistance and the hardness are improved.

The implementation mode is specifically as follows: firstly, a retainer 9 is placed on an inner ring 5, then a plurality of rollers 11 are sequentially inserted into a plurality of third arc grooves 10, rolling columns drive a second semi-sphere 13, the second semi-sphere 13 is inserted into the second arc groove 7, then an outer ring 1 is pressed downwards from the upper side of the inner ring 5, the inner ring 5 slides in a placing hole 2 on the outer ring 1, when a first semi-sphere 12 is contacted with the first arc groove 4, the outer ring 1 is not pressed down, the outer ring 1 is stopped to be pressed, the bearing is installed, the outer ring 1 of the bearing is fixed to a required position, then a transmission shaft is inserted into a second through hole 6, then the transmission shaft is fixed, when the transmission shaft rotates, the transmission shaft drives the inner ring 5 to rotate, the inner ring 5 drives the rollers 11 and the second semi-sphere 13, the rollers 11 roll in the rolling grooves 8 and the third arc grooves 10, the second semi-sphere 13 rolls in the second arc groove 7, the rollers 11 drive the first semi-sphere 12 to roll in the first arc groove 4, the axial force on the transmission shaft is transmitted to the inner ring 5, the inner ring 5 is transmitted to the first semicircle ball 12 and the roller 11, the roller 11 transmits the axial force to the first semicircle ball 12 and the retainer 9, the retainer 9 and the first semicircle ball 12 transmit the axial force to the outer ring 1, the outer ring 1 resists the axial force, so that the transmission shaft can not move axially, the transmission shaft can only rotate, when the transmission shaft drives the inner ring 5 to rotate, the bearing can work stably, the transmission is stable, the axial force on the transmission shaft can be well counteracted by the bearing, the normal transmission of the transmission shaft can not be influenced, the bearing is simple to install, the damaged roller 11 is easy to replace, and larger axial force can be counteracted, the wear of the roller 11 is reduced, the application range of the bearing is improved, and the embodiment specifically solves the problems that in the prior art, for a single-row angular contact ball bearing installed on a transmission shaft, the axial force capable of being counteracted is small, and meanwhile, the wear is serious.

This practical theory of operation:

referring to the attached drawings 1-6 of the specification, firstly, a retainer 9 is placed on an inner ring 5, then a plurality of rollers 11 are sequentially inserted into a plurality of third arc grooves 10, rolling columns drive a second semi-sphere 13, the second semi-sphere 13 is inserted into a second arc groove 7, then an outer ring 1 is pressed downwards from the upper side of the inner ring 5, the inner ring 5 slides in a placing hole 2 on the outer ring 1, when a first semi-sphere 12 is contacted with a first arc groove 4, the outer ring 1 is not pressed downwards, the outer ring 1 is stopped being pressed, the bearing is installed, the outer ring 1 of the bearing is fixed to a required position, then a transmission shaft is inserted into a second through hole 6 and fixed, when the transmission shaft rotates, the transmission shaft drives the inner ring 5 to rotate, the inner ring 5 drives the rollers 11 and the second semi-sphere 13, the rollers 11 roll in the rolling grooves 8 and the third arc grooves 10, the second semi-sphere 13 rolls in the second arc groove 7, the roller 11 drives the first hemispherical ball 12 to roll in the first arc groove 4, the axial force on the transmission shaft is transmitted to the inner ring 5, the inner ring 5 is transmitted to the first hemispherical ball 12 and the roller 11, the roller 11 transmits the axial force to the first hemispherical ball 12 and the retainer 9, the retainer 9 and the first hemispherical ball 12 transmit the axial force to the outer ring 1, the outer ring 1 blocks the axial force, the transmission shaft cannot move axially, and the transmission shaft can only rotate.

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. A single row angular contact bearing comprising an outer ring (1), characterized in that: the inner ring is characterized in that a placing hole (2) is formed in the outer ring (1), a first through hole (3) penetrates through one end of the outer ring (1), a first arc groove (4) is formed in the inner circumferential surface of the outer ring (1), an inner ring (5) is connected to the inner circumferential surface of the placing hole (2) in a sliding mode, a second through hole (6) penetrates through one end of the inner ring (5), a second arc groove (7) is formed in the inner circumferential surface of the inner ring (5), a rolling groove (8) is formed in the inner circumferential surface of the inner ring (5), a retainer (9) is arranged in the inner ring (5), a third arc groove (10) is formed in the outer circumferential surface of the retainer (9), a roller (11) is connected to the inner portion of the third arc groove (10) in a rolling mode, a first semi-sphere (12) is fixedly connected to one end of the roller (11), the first semi-sphere (12) is connected to the first arc groove (4, and the second semi-sphere (13) is in rolling connection with the second arc groove (7).

2. A single row angular contact bearing according to claim 1, wherein: the number of the third arc grooves (10) is set to be a plurality, and the third arc grooves (10) are distributed on the outer peripheral surface of the retainer (9) in a circumferential array manner.

3. A single row angular contact bearing according to claim 1, wherein: the diameter of the first through hole (3) is larger than that of the second through hole (6), and the central axis of the first through hole (3) is superposed with that of the second through hole (6).

4. A single row angular contact bearing according to claim 1, wherein: the roller (11), the first semi-sphere (12) and the second semi-sphere (13) are all made of ZGCr15 materials.

5. A single row angular contact bearing according to claim 1, wherein: the retainer (9) is made of GCr15 material.