A wear-resistant carbon bearing

Abstract

The utility model relates to the field of carbon bearings, and specifically discloses a wear-resistant carbon bearing, comprising an outer sleeve and an inner sleeve, wherein the inner wall of the outer sleeve is an arc-shaped structure recessed inwardly, and the outer wall of the inner sleeve is an arc-shaped structure protruding outwardly, two inner sleeve mounting notches are symmetrically arranged on the inner wall of the outer sleeve, a lubricating liquid storage cavity is arranged on the inner sleeve, the lubricating liquid storage cavity is an annular structure, a plurality of lubricating holes are arranged on the top of the lubricating liquid storage cavity, and the lubricating holes are evenly distributed on the outer periphery of the inner sleeve, and the lubricating liquid storage cavity is arranged in the outer sleeve, so that the lubricating liquid can be stored in the lubricating liquid storage cavity, and then flow to the surface of the inner sleeve through the lubricating holes, thereby achieving the purpose of automatic lubrication, reducing the friction coefficient between the outer sleeve and the inner sleeve, and reducing wear.

Description

Technical Field

[0001] The utility model relates to the field of carbon bearings, in particular to a wear-resistant carbon bearing. Background Art

[0002] Carbon-graphite bearings refer to sliding bearings made of carbon-graphite materials. Sliding bearings are divided into two types: radial bearings and thrust bearings. Carbon-graphite sliding bearings are used in high and low temperature, high and low speed sliding conditions, and have corrosion resistance to highly corrosive gas and liquid media.

[0003] Patent number CN216199809U is a wear-resistant graphite bearing. It introduces a graphite bearing that reduces the friction coefficient between the middle ring and the outer ring by arranging balls between the two. However, this bearing is not easy to produce and install, and arranging balls between the sleeves or bearing shells will cause the sleeves or bearing shells to wear more severely. Therefore, a carbon bearing is needed that can reduce the friction coefficient between the sleeves and reduce the wear between the sleeves without using balls. Utility Model Content

[0004] The utility model is to solve the technical problems mentioned in the above background technology, and proposes the following technical solutions:

[0005] A wear-resistant carbon bearing comprises an outer sleeve and an inner sleeve, wherein the inner wall of the outer sleeve is an inwardly concave arc structure, the outer wall of the inner sleeve is an outwardly convex arc structure, and two inner sleeve installation notches are symmetrically arranged on the inner wall of the outer sleeve.

[0006] The inner sleeve is provided with a lubricating liquid storage cavity, which is an annular structure. The top of the lubricating liquid storage cavity is provided with a plurality of lubricating holes, which are evenly distributed on the outer periphery of the inner sleeve.

[0007] Preferably, the width of the outer sleeve is consistent with the width of the inner sleeve.

[0008] Preferably, the inner wall of the outer sleeve is provided with a plurality of chip removal grooves.

[0009] Preferably, two clamp fixing blocks are respectively provided on both sides of the outer sleeve, the clamp fixing blocks are semicircular structures, the cross-section of the clamp fixing blocks is an "L"-shaped structure, a clamp fixing groove is generated between the clamp fixing block and the outer sleeve, a clamp is sleeved in the clamp fixing groove, and two notches are symmetrically provided on the clamp, and the size of the notches is consistent with the size of the inner sleeve installation notch.

[0010] Preferably, a first positioning hole is provided on the clamp fixing block, and a second positioning hole is provided on the clamp. The first positioning hole and the second positioning hole are consistent in size and are connected in series via a pin.

[0011] The beneficial effects of the utility model are:

[0012] 1. The utility model provides a lubricating liquid storage chamber in the outer sleeve, in which the lubricating liquid can be stored, and then flows to the surface of the inner sleeve through the lubricating hole, thereby achieving the purpose of automatic lubrication, reducing the friction coefficient between the outer sleeve and the inner sleeve, and reducing wear.

[0013] 2. By arranging a chip discharge groove on the outer sleeve, impurities and hard objects between the inner sleeve and the outer sleeve can be discharged through the chip discharge groove, thereby reducing the wear of the outer sleeve and the inner sleeve.

[0014] 3. By setting a fixing block and a clamp on the outer sleeve, after the inner and outer sleeves are installed, the inner sleeve can be fixed in the outer sleeve by the clamp to prevent it from falling off during rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is an exploded view of the structure of the utility model;

[0017] Figure 3 This is a cross-sectional view of the structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the shaft sleeve structure of the second embodiment of the utility model at home and abroad.

[0019] In the figure: 1. outer sleeve; 2. inner sleeve; 3. inner sleeve installation notch; 4. lubricating liquid storage chamber; 5. lubrication hole; 6. chip removal groove; 7. clamp fixing block; 8. clamp fixing groove; 9. clamp; 10. notch; 11. first positioning hole; 12. second positioning hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] In the description of the present utility model, it is necessary to understand that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The connection methods described in the terms "fixed connection" and "fixed setting" include but are not limited to "welding", "riveting", "adhesion", and "threaded connection". The terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements that are inherent to such process, method, article or device.

[0022] The directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0023] Embodiment 1

[0024] Reference Figure 1-3 A wear-resistant carbon bearing comprises an outer sleeve 1 and an inner sleeve 2. The inner wall of the outer sleeve 1 is an inwardly concave arc structure, and the outer wall of the inner sleeve 2 is an outwardly convex arc structure. Two inner sleeve mounting notches 3 are symmetrically arranged on the inner wall of the outer sleeve 1. A lubricating liquid storage chamber 4 is arranged on the inner sleeve 2. The lubricating liquid storage chamber 4 is an annular structure. Lubricating holes 5 are arranged on the top of the lubricating liquid storage chamber 4. The lubricating holes 5 are evenly distributed on the outer periphery of the inner sleeve 2.

[0025] Preferably, the width of the outer sleeve 1 is consistent with the width of the inner sleeve 2 .

[0026] Preferably, a chip removal groove 6 is provided on the inner wall of the outer sleeve 1 .

[0027] Before installing the carbon bearing, the staff first adds lubricating liquid into the lubricating liquid storage chamber 4, and then puts the inner sleeve 2 into the outer sleeve 1 through the inner sleeve installation notch 3. During the rotation of the inner sleeve, the lubricating liquid will overflow along the lubrication hole 5, thereby reducing the friction coefficient between the outer sleeve 1 and the inner sleeve 2, reducing wear and improving wear resistance.

[0028] Embodiment 2

[0029] Reference Figure 4In order to solve the risk of separation and falling of the inner sleeve 2 and the outer sleeve 1 that may occur in the first embodiment, the present embodiment proposes that two clamp fixing blocks 7 are respectively arranged on both sides of the outer sleeve 1. The clamp fixing blocks 7 are semicircular structures, and the cross-section of the clamp fixing blocks 7 is an "L"-shaped structure. A clamp fixing groove 8 is generated between the clamp fixing blocks 7 and the outer sleeve 1. A clamp 9 is arranged inside the clamp fixing groove 8. Two notches 10 are symmetrically arranged on the clamp 9. The size of the notch 10 is consistent with the size of the inner sleeve installation notch 3.

[0030] Preferably, a first positioning hole 11 is provided on the clamp fixing block 7, and a second positioning hole 12 is provided on the clamp 9. The first positioning hole 11 and the second positioning hole 12 are of the same size and are connected in series via a pin.

Claims

1. A wear-resistant carbon bearing, comprising an outer sleeve (1) and an inner sleeve (2), characterized in that: The inner wall of the outer sleeve (1) is an inwardly concave arc structure, the outer wall of the inner sleeve (2) is an outwardly convex arc structure, and two inner sleeve mounting notches (3) are symmetrically arranged on the inner wall of the outer sleeve (1); The inner shaft sleeve (2) is provided with a lubricating liquid storage chamber (4), the lubricating liquid storage chamber (4) is an annular structure, a plurality of lubricating holes (5) are provided at the top of the lubricating liquid storage chamber (4), and the lubricating holes (5) are evenly distributed on the outer periphery of the inner shaft sleeve (2).

2. A wear-resistant carbon bearing according to claim 1, characterized in that: The width of the outer shaft sleeve (1) is consistent with the width of the inner shaft sleeve (2).

3. A wear-resistant carbon bearing according to claim 2, characterized in that: A plurality of chip removal grooves (6) are arranged on the inner wall of the outer shaft sleeve (1).

4. A wear-resistant carbon bearing according to claim 2, characterized in that: Two clamp fixing blocks (7) are respectively arranged on both sides of the outer sleeve (1); the clamp fixing blocks (7) are semicircular structures; the cross section of the clamp fixing blocks (7) is an "L"-shaped structure; a clamp fixing groove (8) is formed between the clamp fixing block (7) and the outer sleeve (1); a clamp (9) is sleeved in the clamp fixing groove (8); two notches (10) are symmetrically arranged on the clamp (9); the size of the notches (10) is consistent with the size of the inner sleeve installation notch (3).

5. A wear-resistant carbon bearing according to claim 4, characterized in that: The clamp fixing block (7) is provided with a first positioning hole (11), and the clamp (9) is provided with a second positioning hole (12); the first positioning hole (11) and the second positioning hole (12) are of the same size and are connected in series via a latch.

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