CN112664585A

CN112664585A - Wear-resistant one-way needle bearing

Info

Publication number: CN112664585A
Application number: CN202011614807.6A
Authority: CN
Inventors: 邱公才; 邱公元; 张应旗
Original assignee: Jiangsu Sanyuan Auto Parts Co ltd
Current assignee: Jiangsu Sanyuan Auto Parts Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-04-16

Abstract

The invention discloses a wear-resistant unidirectional needle bearing, and relates to the technical field of bearings. The bearing comprises a bearing outer ring, a one-way inner ring and a retainer, wherein a first mounting position and a second mounting position are respectively arranged in the bearing outer ring, the one-way inner ring is mounted at the first mounting position, and the retainer is mounted at the second mounting position. According to the invention, the braking arc groove, the limiting column, the spring groove, the spring, the buffering supporting pad, the one-way roller pin, the multiple groups of mounting positions, the one-way inner ring and the retainer are arranged, so that the bearing has good stability and braking effect, and the one-way roller pin is not easy to wear and is more durable.

Description

Wear-resistant one-way needle bearing

Technical Field

The invention belongs to the technical field of bearings, and particularly relates to a wear-resistant unidirectional needle bearing.

Background

The one-way needle bearing is also called a needle clutch and consists of a punched outer ring and a plastic retainer; the retainer can be provided with a plastic reed or a stainless steel reed for guiding the roller pin, and the inclined surface roller path and the roller pin on the outer ring are used as locking devices. The surface of the bearing is provided with a groove, the bearing is mainly used for diabolo manufacturing enterprises, solid collar type one-way needle bearings are also proposed, the bearing is mainly used for fitness equipment enterprises, ultrathin one-way needle bearings are also developed, and the bearing is mainly used for precision machinery enterprises.

Most of the existing one-way needle roller bearings operate through a single retainer, the situation of slipping is easy to occur in the operation process, in the process of the bearing operating in the opposite direction, the abrasion to the needle rollers is too large, the size of the needle rollers is reduced under the long-term use, the spring is influenced by the centripetal force for a long time to generate deformation, and the braking effect is reduced; accordingly, a wear-resistant unidirectional needle bearing is proposed.

Disclosure of Invention

The invention aims to provide a wear-resistant one-way needle bearing, which solves the problems that most of the existing one-way needle bearings are operated through a single retainer, the situation of slipping is easy to occur in the operation process, in the process of the bearing operating in the reverse direction, the abrasion to a needle is too large, the size of the needle is reduced under the long-term use, a spring is influenced by centripetal force for a long time to generate deformation, and the braking effect is reduced.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a wear-resistant one-way needle roller bearing which comprises a bearing outer ring, a one-way inner ring and a retainer, wherein a first mounting position and a second mounting position are respectively arranged in the bearing outer ring, the size of the first mounting position is smaller than that of the one-way inner ring, the one-way inner ring is mounted at the first mounting position, the retainer is mounted at the second mounting position, and the one-way inner ring enhances the stability of the bearing and simultaneously improves the braking effect.

Furthermore, a plurality of main rolling needles are installed in the retainer, and the size of the main rolling needles is matched with that of the retainer.

Furthermore, a plurality of stop circular arc grooves are arrayed on the circumferential side of the unidirectional inner ring.

Furthermore, a plurality of limiting columns are fixedly connected to one side surface of the stop arc groove, and a spring groove penetrates through one side surface of each limiting column.

Furthermore, the spring is fixedly connected inside the spring groove, and one end of the spring is fixedly connected with the pressure pad.

Furthermore, a one-way roller pin is arranged in the stopping arc groove, the size of the one-way roller pin is matched with that of the stopping arc groove, the one-way roller pin is attached to the pressure pad, when the device rotates normally, the one-way roller pin rotates along with the pressure pad, the pressure pad is influenced by the one-way roller pin and is pressed into the spring groove, the spring is not popped out, and the one-way roller pin operates normally; when the device rotates in the opposite direction, the one-way roller pins are separated from the pressure pad, the spring is popped out to pop out the pressure pad, and the one-way roller pins extrude the stop arc groove to realize the braking effect; the pressure pad strengthens the contact surface of spring and one-way kingpin, prevents that one-way kingpin from being worn by the spring contact, and the arc notch lets the rotation of one-way kingpin not influenced, makes one-way kingpin be difficult for by wearing and tearing, and locking circular arc groove and bearing inner race are to the wearing and tearing of one-way kingpin when having alleviateed the braking, and it is more durable to let one-way kingpin.

Furthermore, an arc-shaped notch is formed in one end of the limiting column, and the size of the arc-shaped notch is matched with that of the one-way rolling needle.

Further, the spring groove medial surface is provided with the buffering supporting pad, and the size and the spring of buffering supporting pad suit, and the spring receives the influence of centripetal force for a long time when the function, can produce certain bending, influences the holistic braking effect of device, and the buffering supporting pad cushions the support to the spring, reduces the centripetal force that the spring received, and it is more durable to let the difficult bending of spring.

Furthermore, a snap ring is arranged between the one-way inner ring and the retainer.

Furthermore, a plurality of annular grooves are formed in the inner side face of the bearing outer ring, and the clamping rings are matched with the annular grooves.

The invention has the following beneficial effects:

1. the invention has the advantages that the device has good stability and better braking effect by arranging a plurality of groups of mounting positions, the one-way inner ring and the retainer.

2. The braking arc groove, the limiting column, the spring groove, the spring, the buffering supporting pad and the one-way roller pin are arranged, so that the device has a stable braking effect and is very durable.

3. The arc-shaped notch is arranged, so that the rotation of the one-way roller pin is not influenced, the one-way roller pin is not easily abraded, the abrasion of the stop arc-shaped notch and the bearing outer ring to the one-way roller pin during braking is reduced, and the one-way roller pin is more durable; through setting up the buffering supporting pad, cushion the support to the spring, reduce the centripetal force that the spring received, let the difficult crooked more durable of spring.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic isometric view of a wear-resistant unidirectional needle bearing;

FIG. 2 is a schematic view of the bearing outer race of FIG. 1 with the bearing outer race removed;

FIG. 3 is a schematic top view of a wear-resistant unidirectional needle bearing;

FIG. 4 is a schematic view of the cross-sectional structure A-A of FIG. 3;

FIG. 5 is a schematic view of the cross-sectional structure B-B in FIG. 3;

fig. 6 is a partially enlarged view of a portion C in fig. 5.

In the drawings, the components represented by the respective reference numerals are listed below: 1. a bearing outer race; 101. a first mounting location; 102. a second mounting location; 2. a unidirectional inner ring; 3. a holder; 301. a main needle roller; 5. a snap ring; 501. a ring groove; 6. a stopping arc groove; 7. a limiting column; 8. a spring slot; 9. a spring; 10. buffering the supporting pad; 11. a pressure pad; 12. unidirectional needle rollers; 13. an arc-shaped notch.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "middle", "outer", "inner", and the like, indicate orientations or positional relationships, are used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-6, the wear-resistant unidirectional needle roller bearing of the present invention includes a bearing outer ring 1, a unidirectional inner ring 2, and a retainer 3, wherein the bearing outer ring 1 is internally provided with a first mounting location 101 and a second mounting location 102, the first mounting location 101 is smaller than the unidirectional inner ring 2 in size, the unidirectional inner ring 2 is mounted on the first mounting location 101, the retainer 3 is mounted on the second mounting location 102, and the unidirectional inner ring 2 enhances the stability of the bearing and improves the braking effect.

Preferably, a plurality of main rolling needles 301 are installed inside the retainer 3, and the size of the main rolling needles 301 is adapted to the retainer 3.

Preferably, a plurality of stop circular arc grooves 6 are arrayed on the circumferential side of the unidirectional inner ring 2.

Preferably, a plurality of limiting columns 7 are fixedly connected to one side surface of the stopping arc groove 6, and a spring groove 8 penetrates through one side surface of each limiting column 7.

Preferably, a spring 9 is fixedly connected inside the spring groove 8, and one end of the spring 9 is fixedly connected with a pressure pad 11.

Preferably, the unidirectional roller pin 12 is arranged in the retaining arc groove 6, the size of the unidirectional roller pin 12 is matched with that of the retaining arc groove 6, the unidirectional roller pin 12 is attached to the pressure pad 11, when the device rotates normally, the unidirectional roller pin 12 rotates along with the pressure pad 11, the pressure pad 11 is influenced by the unidirectional roller pin 12 and is pressed into the spring groove 8, the spring 9 does not pop up, and the unidirectional roller pin 12 operates normally; when the device rotates in the opposite direction, the one-way roller pin 12 is separated from the pressure pad 11, the spring 9 is popped out to pop the pressure pad 11, and the one-way roller pin 12 extrudes the stop arc groove 6 to realize the braking effect; the pressure pad 11 enhances the contact surface between the spring 9 and the one-way roller pin 12, prevents the one-way roller pin 12 from being worn by the contact of the spring 9, and the arc-shaped notch 13 enables the rotation of the one-way roller pin 12 not to be affected, so that the one-way roller pin 12 is not easy to wear, the abrasion of the stop arc groove 6 and the bearing outer ring 1 on the one-way roller pin 12 during braking is reduced, and the one-way roller pin 12 is more durable.

Preferably, one end of the limiting column 7 is provided with an arc-shaped notch 13, and the size of the arc-shaped notch 13 is matched with that of the one-way needle roller 12.

Preferably, the 8 medial surfaces of spring groove are provided with buffering supporting pad 10, and the size of buffering supporting pad 10 suits with spring 9, and spring 9 receives the influence of centripetal force for a long time when the operation, can produce certain bending, influences the holistic braking effect of device, and buffering supporting pad 10 cushions the support to spring 9, reduces the centripetal force that spring 9 received, and it is more durable to let the difficult bending of spring 9.

Preferably, a snap ring 5 is arranged between the one-way inner ring 2 and the cage 3.

Preferably, the inner side surface of the bearing outer ring 1 is provided with a plurality of ring grooves 501, and the snap ring 5 is matched with the ring grooves 501.

The embodiment shown in fig. 1 to 6 is a use method of a wear-resistant unidirectional needle bearing: when the device rotates normally, the one-way roller pins 12 rotate along with the device, the pressure pad 11 is influenced by the one-way roller pins 12 and is pressed into the spring groove 8, the spring 9 does not pop out, and the one-way roller pins 12 operate normally; when the device rotates in the opposite direction, the one-way roller pin 12 is separated from the pressure pad 11, the spring 9 is popped out to pop the pressure pad 11, and the one-way roller pin 12 extrudes the stop arc groove 6 to realize the braking effect; the pressure pad 11 enhances the contact surface between the spring 9 and the one-way roller pin 12, prevents the one-way roller pin 12 from being worn by the contact of the spring 9, and the arc-shaped notch 13 enables the rotation of the one-way roller pin 12 not to be affected, so that the one-way roller pin 12 is not easy to wear, the wear of the one-way roller pin 12 caused by the stop arc-shaped groove 6 and the bearing outer ring 1 during braking is reduced, and the one-way roller pin 12 is more durable; the buffering support pad 10 is used for buffering and supporting the spring 9, so that the centripetal force applied to the spring 9 is reduced, and the spring 9 is not easy to bend and is more durable.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a wear-resisting one-way bearing of bearing, includes bearing inner race (1), one-way inner circle (2) and holder (3), its characterized in that: the bearing outer ring (1) is internally provided with a first installation position (101) and a second installation position (102) respectively, the size of the first installation position (101) is smaller than that of the one-way inner ring (2), the one-way inner ring (2) is installed on the first installation position (101), and the retainer (3) is installed on the second installation position (102).

2. A wear-resistant unidirectional needle bearing according to claim 1, characterized in that a plurality of primary needles (301) are mounted inside the cage (3), the primary needles (301) being dimensioned to the cage (3).

3. A wear-resistant unidirectional needle roller bearing according to claim 1, characterized in that the circumferential side of the unidirectional inner ring (2) is arrayed with a plurality of retaining circular arc grooves (6).

4. A wear-resistant unidirectional needle roller bearing according to claim 3, characterized in that a plurality of limiting columns (7) are fixedly connected to one side of the stopping arc groove (6), and a spring groove (8) penetrates through one side of each limiting column (7).

5. A wear-resistant unidirectional needle bearing according to claim 4, characterized in that a spring (9) is fixedly connected inside the spring groove (8), and a pressure pad (11) is fixedly connected to one end of the spring (9).

6. A wear-resistant unidirectional needle bearing according to claim 5, characterized in that the retaining arc groove (6) is internally provided with unidirectional needles (12), the size of the unidirectional needles (12) is adapted to the retaining arc groove (6), and the unidirectional needles (12) are attached to the pressure pad (11).

7. A wear-resistant unidirectional needle roller bearing according to claim 4, characterized in that one end of the limiting column (7) is provided with an arc-shaped notch (13), and the size of the arc-shaped notch (13) is adapted to the unidirectional needle roller (12).

8. A wear-resistant unidirectional needle bearing according to claim 5, characterized in that the inner side of the spring groove (8) is provided with a cushion support (10), the cushion support (10) being dimensioned to accommodate the spring (9).

9. A wear-resistant unidirectional needle bearing according to claim 1, characterized in that a snap ring (5) is provided between the unidirectional inner ring (2) and the cage (3).

A wear-resistant unidirectional needle bearing according to claim 9, characterized in that the bearing outer ring (1) is provided with a plurality of ring grooves (501) on the inner side, and the snap ring (5) is matched with the ring grooves (501).