CN215634443U

CN215634443U - Wear-resistant bearing

Info

Publication number: CN215634443U
Application number: CN202122096685.2U
Authority: CN
Inventors: 李冬; 李兴文; 王钊焕
Original assignee: Qiannan Sliding Bearing Co ltd
Current assignee: Qiannan Sliding Bearing Co ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2022-01-25
Anticipated expiration: 2031-09-01

Abstract

The utility model relates to a wear-resistant bearing which comprises an outer ring and an inner ring arranged inside the outer ring, wherein a holding device positioned inside the outer ring is also arranged outside the inner ring, balls are also arranged on the holding device, and the holding device comprises a first sealing plate and a second sealing plate which are slidably arranged outside the inner ring. This stand wear and tear bearing, divide into two sets of each other concatenations through setting up the holder, connect through the mode of the mutual joint of fixture block and draw-in groove simultaneously, make the holder be convenient for dismantle the installation, made things convenient for the follow-up inside greasy dirt of bearing to clear up, protect inside through setting up first shrouding and second shrouding, the inside of the direct entering bearing of greasy dirt has been avoided, cause the pollution, thereby make this bearing long service life, through setting up the connecting strip, first polyethylene layer and second polyethylene layer, reach the coefficient of friction who improves contact surface, thereby reduce its frictional resistance, prevent to rotate the aggravation overheated, and the problem of wearing and tearing.

Description

Wear-resistant bearing

Technical Field

The utility model relates to the technical field of bearings, in particular to a wear-resistant bearing.

Background

A bearing is a mechanical element that limits relative motion to a desired range of motion and reduces friction between moving parts, and is designed to provide free linear motion or free rotation about a fixed axis of the moving parts, as well as to prevent motion by controlling the vector of the normal force acting on the moving parts.

The outer sleeve and the inner sleeve of the ball bearing are both sunken to further mount the balls in a rolling manner, so that additional friction is easily generated under the relative contact between the balls in actual use, the abrasion of the bearing under rotation is increased, the retainer is additionally arranged to avoid the relative friction between the balls, but the balls and the retainer of the bearing are relatively closed, and the friction force is easily increased by introducing impurity and dust under the flowing of lubricating oil.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a wear-resistant bearing which has the advantages of convenience in disassembly and cleaning, good wear resistance and the like, and solves the problem that the bearing in the prior art is subjected to aggravation of wear caused by the fact that dirt is easily accumulated between a ball and a frame because a retainer is used.

In order to achieve the purpose, the utility model provides the following technical scheme: a wear-resistant bearing comprises an outer ring and an inner ring arranged inside the outer ring, wherein a retaining device located inside the outer ring is further arranged outside the inner ring, and balls are further arranged on the retaining device.

The retaining device comprises a first sealing plate and a second sealing plate which are arranged outside the inner ring in a sliding mode and a retainer fixedly arranged between opposite surfaces of the first sealing plate and the second sealing plate, a spring is fixedly arranged on one side wall, close to the inner ring, inside the retainer, a clamping block fixedly connected with the spring is movably arranged inside the retainer, and a clamping groove corresponding to the clamping block is formed in the other retainer.

Furthermore, the outer side of the retainer contacting the balls is also provided with a rolling groove which is in a shape of a quarter spherical groove.

Furthermore, a sliding rail is fixedly arranged in the retainer, and one end of the fixture block, which is positioned in the retainer, is slidably connected with the sliding rail.

Furthermore, the front surface of the retainer is provided with a movable hole which is convenient for the sliding of the clamping block, and the movable hole is connected with the clamping block in a sliding manner.

Furthermore, the first sealing plate and the second sealing plate are both circular rings with the shapes matched with the gaps between the outer ring and the inner ring.

Further, still fixed mounting has the connecting strip of laminating inner circle on the ring inner wall of first shrouding and second shrouding, and the connecting strip is the smooth circular arc shape in surface spare.

Further, the outer ring comprises an outer sleeve, a first polyethylene layer fixedly mounted on the outer sleeve and a first metal powder layer arranged between the first polyethylene layer and the outer sleeve, the inner ring also comprises an inner sleeve fixedly connected with the rotating shaft and rotating relative to the outer sleeve, a second polyethylene layer fixedly mounted on the outer portion of the inner sleeve and a second metal powder layer arranged between the second polyethylene layer and the inner sleeve.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

1. this stand wear and tear bearing divide into two sets of each other concatenation through setting up the holder, connects through the mode of the mutual joint of fixture block and draw-in groove simultaneously for the holder is convenient for dismantle the installation, has made things convenient for the follow-up inside greasy dirt of bearing to clear up, protects inside through setting up first shrouding and second shrouding, has avoided the inside that the greasy dirt directly gets into the bearing, causes the pollution, thereby makes this bearing long service life.

2. This stand wear and tear bearing through setting up connecting strip, first polyethylene layer and second polyethylene layer, reaches the coefficient of friction who improves contact surface to reduce its frictional resistance, prevent to rotate overheated, and the problem of wearing and tearing aggravation.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a structural assembly of the cage of the present invention;

FIG. 3 is a schematic view of the internal structure of the cage of the present invention;

FIG. 4 is a schematic diagram of the outer and inner ring structure of the present invention.

In the figure: the structure comprises an outer ring 1, an outer sleeve 11, a first polyethylene layer 12, a first metal powder layer 13, an inner ring 2, an inner sleeve 21, a second polyethylene layer 22, a second metal powder layer 23, balls 3, a holding device 4, a first sealing plate 401, a retainer 402, a spring 403, a fixture block 404, a sliding rail 405, a movable hole 406, a rolling groove 407, a connecting strip 408, a second sealing plate 409 and a clamping groove 410.

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.

Referring to fig. 1-3, the wear-resistant bearing in this embodiment includes an outer ring 1 and an inner ring 2 disposed inside the outer ring 1, a retaining device 4 disposed inside the outer ring 1 is disposed outside the inner ring 2, and a ball 3 is disposed on the retaining device 4.

In this embodiment, the retaining device 4 includes a first closing plate 401 and a second closing plate 409 slidably mounted outside the inner ring 2, and a retainer 402 fixedly mounted between opposite surfaces of the first closing plate 401 and the second closing plate 409, a spring 403 is fixedly mounted on a side wall of the interior of the retainer 402 close to the inner ring 2, a fixture block 404 fixedly connected with the spring 403 is movably mounted inside one group of the retainer 402, and a clamping groove 410 corresponding to the fixture block 404 is formed on the other group of the retainer 402.

Please refer to the drawings, it should be noted that the retainer 402 is a truncated cone-shaped block, the upper and lower surfaces of which are arc-shaped surfaces and are equidistantly arranged on the first sealing plate 401 and the second sealing plate 409, the outer side of the retainer 402 contacting the balls 3 is further provided with rolling grooves 407, the rolling grooves 407 are in the shape of quarter spherical grooves, and the two sets of retainers 402 can be mutually fastened to form a semi-spherical groove, so that the two sets of retainers 402 can be mutually matched for use.

And the inside of the holder 402 is also fixedly provided with a sliding rail 405, one end of the fixture block 404, which is positioned in the holder 402, is slidably connected with the sliding rail 405, so as to guide the fixture block 404 to slide, and the front surface of the holder 402 is provided with a movable hole 406, which is convenient for the fixture block 404 to slide, so that the fixture block 404 can slide freely.

It can be understood that first shrouding 401 and second shrouding 409 are the ring shape, and correspond with the appearance between outer lane 1 and the inner circle 2, and still fixed mounting has the connecting strip 408 of laminating inner circle 2 on the ring inner wall of first shrouding 401 and second shrouding 409, and connecting strip 408 is the smooth circular arc spare in surface, can effectively reduce area of contact under the friction to reduce frictional force.

Referring to fig. 4, in order to reduce the wear between the outer ring and the inner ring, the outer ring 1 of the present embodiment includes an outer sleeve 11, a first polyethylene layer 12 fixedly mounted on the outer sleeve 11, and a first metal powder layer 13 disposed between the first polyethylene layer 12 and the outer sleeve 11, and the inner ring 2 also includes an inner sleeve 21 fixedly connected to a rotating shaft and rotating with respect to the outer sleeve 11, a second polyethylene layer 22 fixedly mounted on the outer portion of the inner sleeve 21, and a second metal powder layer 23 disposed between the second polyethylene layer 22 and the inner sleeve 21.

In this embodiment, the first metal powder layer 13 and the second metal powder layer 23 may be made of copper powder or iron powder, and are used to connect the first polyethylene layer 12 and the outer sleeve 11, and the second polyethylene layer 22 and the inner sleeve 21, so as to avoid relative rotation caused by direct connection between the two layers.

The working principle of the above embodiment is as follows:

when the bearing is assembled and installed, the first sealing plate 401 and the second sealing plate 409 can be directly and oppositely buckled between the outer ring 1 and the inner ring 2, the clamping blocks 404 and the clamping grooves 410 are mutually matched and clamped, and are mutually abutted under the pushing of the springs 403, so that the two groups of retainers 402 are clamped, the quarter spherical rolling grooves 407 of the two groups of retainers 402 are mutually buckled outside the balls 3 to form a half spherical groove matched with the radian of the balls 3, the two balls 3 are further separated, the mutual contact friction of the balls 3 is avoided, the first sealing plate 401 and the second sealing plate 409 which are positioned outside the supporting retainers 402 can effectively prevent external dust from directly entering, when the bearing needs to be cleaned, only the two groups of retainers 402 need to be disassembled, oil stains outside the balls 3 can be taken down and cleaned, the inner ring 2 rotates relative to the outer ring 1 when the bearing rotates, the cage 402 on its outside contacts the second polyethylene layer 22 via the connecting strips 408 and the upper surface of the cage 402 contacts the first polyethylene layer 12, so that its friction is reduced and it is resistant to wear.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a stand wear and tear bearing, includes outer lane (1) and sets up inner circle (2) inside outer lane (1), its characterized in that: a retaining device (4) positioned in the outer ring (1) is further arranged outside the inner ring (2), and balls (3) are further arranged on the retaining device (4);

the retaining device (4) comprises a first sealing plate (401) and a second sealing plate (409) which are arranged outside the inner ring (2) in a sliding mode and a retainer (402) fixedly arranged between opposite surfaces of the first sealing plate (401) and the second sealing plate (409), a spring (403) is fixedly arranged on one side wall, close to the inner ring (2), of the interior of the retainer (402), a clamping block (404) fixedly connected with the spring (403) is movably arranged in the interior of one group of the retainer (402), and a clamping groove (410) corresponding to the clamping block (404) is formed in the other group of the retainer (402).

2. A wear resistant bearing in accordance with claim 1 wherein: the outer side of the retainer (402), which is in contact with the balls (3), is also provided with rolling grooves (407), and the rolling grooves (407) are in the shape of a quarter spherical groove.

3. A wear resistant bearing in accordance with claim 1 wherein: the inside of holder (402) still fixed mounting has slide rail (405), and fixture block (404) is located the inside one end sliding connection slide rail (405) of holder (402).

4. A wear resistant bearing in accordance with claim 1 wherein: the front surface of the retainer (402) is provided with a movable hole (406) which is convenient for the fixture block (404) to slide, and the movable hole (406) is connected with the fixture block (404) in a sliding manner.

5. A wear resistant bearing in accordance with claim 1 wherein: the first sealing plate (401) and the second sealing plate (409) are both circular rings, and the shapes of the circular rings are matched with the gaps between the outer ring (1) and the inner ring (2).

6. A wear resistant bearing in accordance with claim 1 wherein: and the inner walls of the circular rings of the first sealing plate (401) and the second sealing plate (409) are fixedly provided with connecting strips (408) attached to the inner ring (2), and the connecting strips (408) are arc-shaped pieces with smooth surfaces.

7. A wear resistant bearing in accordance with claim 1 wherein: the outer ring (1) comprises an outer sleeve (11), a first polyethylene layer (12) fixedly mounted on the outer sleeve (11) and a first metal powder layer (13) arranged between the first polyethylene layer (12) and the outer sleeve (11), the inner ring (2) also comprises an inner sleeve (21) fixedly connected with a rotating shaft and rotating relative to the outer sleeve (11), a second polyethylene layer (22) fixedly mounted on the outer portion of the inner sleeve (21) and a second metal powder layer (23) arranged between the second polyethylene layer (22) and the inner sleeve (21).