CN218031069U - High-wear-resistance flanging oilless bearing - Google Patents

Abstract

The utility model relates to an oilless bearing technical field, concretely relates to high wear resistance turn-ups oilless bearing, including flanging shaft sleeve, middle bush and inside flanging bush, middle bush rotates and sets up between flanging shaft sleeve and inside flanging bush, it is provided with the holder to rotate between flanging shaft sleeve and the middle bush, the fixed wearing layer that is provided with on the outer wall of inside flanging bush, the wearing layer sets up the degree of wear that is used for improving the axle sleeve between inside flanging shaft sleeve outer wall and middle bush inner wall, the utility model provides a traditional bearing application scope is little, maintains frequent problem, has promoted mechanical equipment's suitability to high wear resistance turn-ups oilless bearing maintains simply, and wear-resisting high temperature resistant generally does not need to maintain to life, and this turn-ups bearing can bear certain radial bearing capacity moreover, avoids the bearing to drop.

Description

High-wear-resistance flanging oilless bearing

Technical Field

The utility model relates to an oilless bearing technical field, concretely relates to high wear resistance turn-ups oilless bearing.

Background

The bearing is widely applied to the existing industrial and mechanical equipment, most of the bearings are the existing traditional ball bearings, the traditional ball bearings need to be periodically filled with lubricating oil in use, the application range is limited, the traditional ball bearings are not suitable for being used in closed machinery, the existing oilless bearings generally reduce the lubricating capacity of the bearings along with long-term sliding friction, the plating layers of the bearings are easily accelerated to wear, the service lives of the shafts and the bearings are synchronously reduced, and therefore the bearings which do not need regular maintenance and high wear resistance are needed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high wear-resisting turn-ups oilless bearing, its aim at solve traditional bearing and need regular oiling to maintain and application range is limited to and oilless bearing is not wear-resisting to lead to the problem that axle and bearing life reduce.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a high wear-resisting turn-ups oilless bearing, including flanging sleeve, middle bush and interior turn-ups bush, middle bush rotates and sets up between flanging sleeve and interior turn-ups bush, it is provided with the holder to rotate between flanging sleeve and the middle bush, the fixed wearing layer that is provided with on the outer wall of flanging bush, the wearing layer sets up the wearability that is used for improving the axle sleeve between flanging sleeve outer wall and middle bush inner wall.

Furthermore, the retainer is composed of two circular rings, the two circular rings are symmetrically arranged on two sides of the outer wall of the middle lining, and a plurality of rolling balls are rotatably arranged between the two circular rings in an annular array shape.

Furthermore, a plurality of the rolling balls are made of silicon nitride ceramics.

Furthermore, outer grooves are formed in the inner wall of the flanging shaft sleeve, inner grooves are formed in the outer wall of the middle bushing, and the rolling balls are clamped between the outer grooves and the inner grooves in a rotating mode.

Furthermore, a plurality of lubricating grooves are formed in the inner wall of the inner groove in an annular array shape and are used for containing solid graphite lubricant.

Furthermore, an outward flange is fixedly arranged at one end of the outward flange shaft sleeve and used for fixing the bearing and bearing the overall radial bearing capacity of the bearing, and an annular groove is formed in the other end of the outward flange shaft sleeve and used for dissipating heat.

Furthermore, the both ends of inside flanging bush all are fixed and are provided with little turn-ups, every little turn-ups overlap joint respectively one side of middle bush be used for bearing the radial bearing capacity of inside flanging bush and prevent that inside flanging bush from droing, be annular array form on the inner wall of inside flanging bush and seted up a plurality of lubrication holes and all be used for placing solid graphite lubricant.

The utility model has the advantages that:

1. the utility model discloses a high wear resistant turn-ups oilless bearing can solve traditional bearing and can not work under high temperature through the rolling ball of design silicon nitride ceramic material, the problem of resistant high difference in temperature.

2. Through design lubrication groove and lubrication hole, can make solid lubricant fixed inlay inside, keep the lubricated effect of rolling ball and inside flanging bush, need not regularly add emollient to high wear-resisting turn-ups oilless bearing can install inside the confined structure, has avoided the work of regular removal maintenance.

3. Through the design wearing layer, avoided inside flanging bush and middle bush direct contact, but through inside flanging bush transmission, reduced the friction between the bush, promoted the abrasion resistance.

The utility model provides a traditional bearing application scope little, maintain frequent problem, promoted mechanical equipment's suitability to high wear-resisting turn-ups oilless bearing maintains simply, and wear-resisting high temperature resistant generally does not need to maintain to life, and this turn-ups bearing can bear certain radial bearing capacity moreover, avoids the bearing to drop.

Drawings

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

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

FIG. 2 is a schematic view of the overall structure of the flanged shaft sleeve of the present invention;

FIG. 3 is a schematic view of the overall structure of the middle bushing of the present invention;

FIG. 4 is a schematic view of a partial structure of the inner flanging bush of the present invention;

fig. 5 is a schematic view of the overall structure of the retainer of the present invention;

FIG. 6 is a front view of the inner flanged bush of the present invention;

fig. 7 is a cross-sectional view taken along line B-B of fig. 6.

In the figure:

1. an outward flanged shaft sleeve; 11. an outer groove; 12. flanging; 13. an annular groove;

2. an intermediate bushing; 21. an inner groove; 211. a lubrication groove;

3. an inner flanging lining; 31. a wear resistant layer; 32. small flanging; 33. a lubrication hole;

4. a holder; 41. a rolling ball.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.

Referring to fig. 1, the wear-resistant sleeve comprises a flanging shaft sleeve 1, a middle bushing 2 and an inner flanging bushing 3, wherein the middle bushing 2 is rotatably arranged between the flanging shaft sleeve 1 and the inner flanging bushing 3, a retainer 4 is rotatably arranged between the flanging shaft sleeve 1 and the middle bushing 2, a wear-resistant layer 31 is fixedly arranged on the outer wall of the inner flanging bushing 3, and the wear-resistant layer 31 is arranged between the outer wall of the inner flanging shaft sleeve and the inner wall of the middle bushing 2 and used for improving the wear resistance of the shaft sleeve.

Referring to fig. 2, an outer groove 11 is formed in the inner wall of the flanged shaft sleeve 1, an outer flange 12 is fixedly arranged at one end of the flanged shaft sleeve 1 and used for fixing a bearing and bearing the overall radial bearing capacity of the bearing, an annular groove 13 is formed at the other end of the flanged shaft sleeve 1 and used for dissipating heat, the bearing is installed at the installation position and then abutted against the inner wall of the installation position when the bearing is installed at the installation position, when the bearing runs at a high speed or is subjected to acting force from the radial direction, the position of the bearing in the radial direction can not be changed through the outer flange 12, and heat generated during long-time operation can be quickly dissipated through the annular groove 13.

Referring to fig. 3, inner groove 21 has been seted up on the outer wall of middle bush 2, it all is used for placing solid graphite lubricant to have seted up a plurality of lubrication grooves 211 for annular array form on the inner wall of inner groove 21, the solid lubricant of graphite material is fixed in lubrication grooves 211 through special glue, when middle bush 2 and a plurality of rolling ball 41 rotate at a high speed, can guarantee rolling ball 41's surface adhesion one deck lubricant film, when middle bush 2 rotates, still can drive rolling ball 41 and rotate, rolling ball 41 blocks between inner groove 21 and outer recess 11, can make bearing pivoted more smooth and easy, and can prevent droing of middle bush 2.

Referring to fig. 4, fig. 6 and fig. 7, the two ends of the inward flanging bush 3 are both fixedly provided with small flanges 32, each of the small flanges 32 is respectively lapped on one side of the middle bush 2 to bear the radial bearing capacity of the inward flanging bush 3 and prevent the inward flanging bush 3 from falling off, the inner wall of the inward flanging bush 3 is annularly arrayed and provided with a plurality of lubricating holes 33 which are all used for placing solid graphite lubricant, when the inward flanging bush moves, the inner wall of the middle bush 2 can be driven to rotate through the wear-resistant layer 31 on the outer wall of the inward flanging bush 3 instead of being in direct contact with the middle bush 2, and when the inward flanging bush receives the acting force in the radial direction, the small flanges 32 at the two ends can bind the inward flanging bush 3 on the inner wall of the middle bush 2 to prevent slipping.

Referring to fig. 5, holder 4 comprises two rings, two the ring symmetry sets up in middle bush 2 outer wall both sides, two it is annular array form to rotate between the ring and is equipped with a plurality of rolling balls 41, and is a plurality of rolling ball 41 rotary type joint is between outer recess 11 and inner groovy 21, and is a plurality of rolling ball 41 is silicon nitride ceramic material, and rolling ball 41 can follow the rotation when the bearing operates to holder 4 has injectd the interval between every rolling ball 41, takes place collision friction when preventing rolling ball 41 from operating, leads to the bearing to damage.

The foregoing shows and describes the basic principles and principal features of the invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (7)

1. The utility model provides a high wear-resisting turn-ups oilless bearing, its characterized in that, includes flanging sleeve (1), middle bush (2) and inside flanging bush (3), middle bush (2) rotate to set up between flanging sleeve (1) and inside flanging bush (3), it is provided with holder (4) to rotate between flanging sleeve (1) and middle bush (2), the fixed wearing layer (31) that is provided with on the outer wall of inside flanging bush (3), wearing layer (31) set up the degree of wear that is used for improving the axle sleeve between inside flanging bush outer wall and middle bush (2) inner wall.

2. The high-wear-resistance flanging oilless bearing according to claim 1, characterized in that the retainer (4) is composed of two rings, the two rings are symmetrically arranged on two sides of the outer wall of the middle bushing (2), and a plurality of rolling balls (41) are rotatably arranged between the two rings in an annular array.

3. The high-wear-resistance flanging oilless bearing according to claim 2, characterized in that a plurality of the rolling balls (41) are made of silicon nitride ceramics.

4. The high-wear-resistance flanging oilless bearing is characterized in that an outer groove (11) is formed in the inner wall of the flanging shaft sleeve (1), an inner groove (21) is formed in the outer wall of the middle bushing (2), and a plurality of rolling balls (41) are rotatably clamped between the outer groove (11) and the inner groove (21).

5. The high-wear-resistance flanging oilless bearing is characterized in that a plurality of lubricating grooves (211) are formed in the inner wall of the inner groove (21) in an annular array shape and used for containing solid graphite lubricant.

6. The high-wear-resistance flanged oilless bearing according to claim 5, wherein one end of the flanged shaft sleeve (1) is fixedly provided with a flanged edge (12) for fixing the bearing and bearing the whole radial bearing capacity of the bearing, and the other end of the flanged shaft sleeve (1) is provided with an annular groove (13) for heat dissipation.

7. The high-wear-resistance flanging oilless bearing is characterized in that small flanging (32) is fixedly arranged at two ends of the inner flanging lining (3), each small flanging (32) is respectively overlapped on one side of the middle lining (2) and used for bearing the radial bearing capacity of the inner flanging lining (3) and preventing the inner flanging lining (3) from falling off, and a plurality of lubricating holes (33) are formed in the inner wall of the inner flanging lining (3) in an annular array shape and used for placing solid graphite lubricant.

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