CN221743038U

CN221743038U - High-strength shaft sleeve

Info

Publication number: CN221743038U
Application number: CN202420340825.7U
Authority: CN
Inventors: 侯亮宁; 赵召召; 屈立业; 侯京青
Original assignee: Hebei Qingyu Bearing Co ltd
Current assignee: Hebei Qingyu Bearing Co ltd
Priority date: 2024-02-23
Filing date: 2024-02-23
Publication date: 2024-09-20
Anticipated expiration: 2034-02-23

Abstract

The utility model discloses a high-strength shaft sleeve, which comprises a tungsten steel inner liner tube, an outer sleeve and a cover plate, wherein the outer sleeve is fixedly sleeved on the outer side of the tungsten steel inner liner tube, an oil storage groove is formed between the inner wall of the outer sleeve and the outer wall of the tungsten steel inner liner tube, a plurality of taper holes are formed in the outer wall of the tungsten steel inner liner tube in a penetrating manner, the taper holes are positioned in the oil storage groove, steel balls are arranged in the taper holes, and part of areas of the steel balls penetrate into the tungsten steel inner liner tube through the taper holes; according to the utility model, the steel balls are matched with the annular clamping grooves, so that the tungsten steel lining pipe can be clamped on the rotating shaft without affecting the rotating connection between the steel balls, meanwhile, as the taper holes penetrating the steel balls are communicated with the oil storage tank, lubricating oil in the oil storage tank can enter the tungsten steel lining pipe from the gap between the inner wall of the taper holes and the steel balls, so that the annular clamping grooves and the outer wall of the rotating shaft can be lubricated, and the friction resistance of the rotating shaft when rotating in the tungsten steel lining pipe is reduced, and the use effect is good.

Description

High-strength shaft sleeve

Technical Field

The utility model relates to a shaft sleeve, in particular to a high-strength shaft sleeve.

Background

The shaft sleeve is a cylindrical mechanical part sleeved on the rotating shaft and is mainly used for positioning the shaft in the shaft seat, and is generally divided into a smooth shaft sleeve and a shaft sleeve with an oil groove.

Because there is the rotation relation between pivot and the axle sleeve, so there is certain clearance between pivot and the axle sleeve, this clearance makes the pivot can freely rotate in the axle sleeve, but the axle sleeve also can follow the axial of pivot and remove simultaneously, has the possibility of droing, remains to improve. .

Disclosure of utility model

The present utility model is directed to a high strength bushing to solve the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The utility model provides a high strength axle sleeve, includes bushing pipe, outer tube and apron in the tungsten steel, the fixed outside of cup jointing in the tungsten steel bushing pipe of outer tube, and be formed with the oil storage tank between the inner wall of outer tube and the outer wall of bushing pipe in the tungsten steel, a plurality of taper holes have been seted up in the outer wall of bushing pipe runs through in the tungsten steel, the taper hole is located the oil storage tank, and is provided with the steel ball in the taper hole, the subregion of steel ball penetrates in the tungsten steel bushing pipe by the taper hole, the internal diameter of tungsten steel bushing pipe and the external diameter looks adaptation of pivot, annular draw-in groove has been seted up to the outer wall of pivot and the corresponding department of taper hole, the steel ball is located annular draw-in groove, apron and outer tube fixed connection, fixedly connected with push pipe on the apron, the push pipe is located the oil storage tank, and the inner wall laminating of push pipe and push pipe.

As a further scheme of the utility model: the end face and the peripheral wall of the tungsten steel lining pipe are jointly provided with a plurality of first arc grooves, the first arc grooves are communicated with corresponding taper holes, and the inner wall of the oil storage groove and the corresponding positions of all the steel balls are respectively provided with a second arc groove.

As a further scheme of the utility model: and an oil filling nozzle communicated with the oil storage tank is arranged on the cover plate.

As a further scheme of the utility model: the tungsten steel lining pipe and the end face of the outer sleeve are embedded with sealing rings, and the sealing rings are attached to the outer wall of the cover plate.

As still further aspects of the utility model: the inner wall of the tungsten steel lining pipe is provided with an annular oil groove, the taper holes are communicated with the annular oil groove, the inner wall of the tungsten steel lining pipe is provided with a plurality of linear oil grooves, and the linear oil grooves are communicated with the annular oil groove.

Compared with the prior art, the utility model has the beneficial effects that:

According to the utility model, the steel balls are matched with the annular clamping grooves, so that the tungsten steel lining pipe can be clamped on the rotating shaft without affecting the rotating connection between the steel balls, meanwhile, as the taper holes penetrating the steel balls are communicated with the oil storage tank, lubricating oil in the oil storage tank can enter the tungsten steel lining pipe from the gap between the inner wall of the taper holes and the steel balls, so that the annular clamping grooves and the outer wall of the rotating shaft can be lubricated, and the friction resistance of the rotating shaft when rotating in the tungsten steel lining pipe is reduced, and the use effect is good.

Drawings

Fig. 1 is a schematic structural view of a high strength bushing.

FIG. 2 is a schematic cross-sectional view of a tungsten steel liner tube in a high strength bushing.

FIG. 3 is a schematic view of the oil reservoir in a high strength bushing.

Wherein, tungsten steel lining pipe 1, taper hole 2, first arc wall 3, annular oil groove 4, straight line oil groove 5, outer tube 6, oil storage tank 7, second arc wall 8, steel ball 9, apron 10, push pipe 11, oiling mouth 12, sealing washer 13, pivot 14, annular draw-in groove 15.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, in the embodiment of the utility model, a high-strength shaft sleeve comprises a tungsten steel lining tube 1, an outer sleeve 6 and a cover plate 10, wherein the tungsten steel lining tube 1 is made of tungsten steel, has higher strength and wear resistance, the outer sleeve 6 is fixedly sleeved on the outer side of the tungsten steel lining tube 1, an oil storage groove 7 is formed between the inner wall of the outer sleeve 6 and the outer wall of the tungsten steel lining tube 1, a plurality of taper holes 2 are formed in the outer wall of the tungsten steel lining tube 1 in a penetrating manner, the taper holes 2 are positioned in the oil storage groove 7, steel balls 9 are arranged in the taper holes 2, a part of a jacking pipe region of each steel ball 9 penetrates into the tungsten steel lining tube 1 through the taper holes 2, the inner diameter of the tungsten steel lining tube 1 is matched with the outer diameter of a rotating shaft 14, an annular clamping groove 15 is formed at a position corresponding to the outer wall of the rotating shaft 14 and the taper holes 2, the steel balls 9 are positioned in the annular clamping groove 15, the cover plate 10 is fixedly connected with the outer sleeve 6, an 11 is fixedly connected to the cover plate 10, and the 11 is positioned in the oil storage groove 7, and part of the inner wall of the steel balls 9 is attached to the 11.

According to the technical scheme, the steel balls 9 are matched with the annular clamping grooves 15, so that the tungsten steel lining pipe 1 can be clamped on the rotating shaft 14 without affecting the rotation connection between the steel balls 9 and the rotating shaft, meanwhile, as the taper holes 2 penetrating through the steel balls 9 are communicated with the oil storage tank 7, lubricating oil in the oil storage tank 7 can enter the tungsten steel lining pipe 1 through gaps between the inner walls of the taper holes 2 and the steel balls 9, so that the annular clamping grooves 15 and the outer walls of the rotating shaft 14 can be lubricated, friction resistance received by the rotating shaft 14 when the rotating shaft 14 rotates in the tungsten steel lining pipe 1 is reduced, and the use effect is good.

With specific reference to fig. 1 and fig. 3, in an embodiment of the present utility model, the end surface and the peripheral wall of the tungsten steel lining pipe 1 are jointly provided with a plurality of first arc grooves 3, the first arc grooves 3 are communicated with corresponding taper holes 2, and the corresponding positions of the inner wall of the oil storage tank 7 and each steel ball 9 are respectively provided with a second arc groove 8.

Through the arrangement of the first arc-shaped groove 3 and the second arc-shaped groove 8, each steel ball 9 can be positioned in the oil storage groove 7, so that the steel balls 9 can be accurately aligned with the taper holes 2, then the nail pipe 11 is inserted into the oil storage groove 7, and each steel ball 9 can be jacked into the corresponding taper hole 2 by the nail pipe 11, so that the operation is simple and convenient.

With specific reference to fig. 1, in one embodiment of the present utility model, a nipple 12 is mounted on the cover plate 10 in communication with the oil reservoir 7.

Through the setting of the grease nipple 12, conveniently inject the oil to the oil storage tank 7 through the grease gun.

With specific reference to fig. 1 and 3, in an embodiment of the present utility model, the end surfaces of the tungsten steel lining tube 1 and the outer sleeve 6 are respectively embedded with a sealing ring 13, and the sealing rings 13 are respectively attached to the outer wall of the cover plate 10.

Through the setting of sealing washer 13, can ensure the leakproofness between apron 10 and tungsten steel lining pipe 1 and the outer tube 6 tip to carry out the shutoff to the open end of oil storage tank 7, avoid lubricating oil to reveal.

With specific reference to fig. 2, in one embodiment of the present utility model, an annular oil groove 4 is formed in the inner wall of the tungsten steel lining pipe 1, the taper holes 2 are all communicated with the annular oil groove 4, a plurality of linear oil grooves 5 are formed in the inner wall of the tungsten steel lining pipe 1, and the linear oil grooves 5 are all communicated with the annular oil groove 4.

Through the arrangement of the annular oil groove 4 and the linear oil groove 5, lubricating oil can be distributed more uniformly on the inner side of the tungsten steel lining pipe 1, and certain oil storage capacity is achieved, so that good lubricity between the tungsten steel lining pipe 1 and the rotating shaft 14 is ensured.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. A high strength bushing, characterized in that: including bushing pipe (1), outer tube (6) and apron (10) in the tungsten steel, the outside of bushing pipe (1) in the tungsten steel is fixed to cup joint in outer tube (6), and is formed with oil storage tank (7) between the inner wall of bushing pipe (6) and the outer wall of bushing pipe (1) in the tungsten steel, a plurality of taper holes (2) have been seted up in the outer wall of bushing pipe (1) in the tungsten steel, taper holes (2) are located oil storage tank (7), and are provided with steel ball (9) in taper holes (2), the subregion of steel ball (9) penetrates in bushing pipe (1) in the tungsten steel by taper holes (2), the external diameter looks adaptation of bushing pipe (1) and pivot (14) in the tungsten steel, annular draw-in groove (15) have been seted up to the corresponding department of outer wall and taper holes (2) of pivot (14), steel ball (9) are located annular draw-in groove (15), apron (10) and 6) fixed connection, fixedly connected with (11) on apron (10), oil storage tank (11) are located in the inner wall of push pipe (7) and steel ball (11).

2. A high strength bushing as claimed in claim 1, wherein: the tungsten steel lining pipe is characterized in that a plurality of first arc grooves (3) are formed in the end face and the peripheral wall of the tungsten steel lining pipe (1) jointly, the first arc grooves (3) are communicated with corresponding taper holes (2), and second arc grooves (8) are formed in the positions, corresponding to all the steel balls (9), of the inner wall of the oil storage groove (7).

3. A high strength bushing as claimed in claim 1, wherein: and an oil filling nozzle (12) communicated with the oil storage tank (7) is arranged on the cover plate (10).

4. A high strength bushing as claimed in claim 1, wherein: the end faces of the tungsten steel inner liner tube (1) and the outer sleeve tube (6) are embedded and provided with sealing rings (13), and the sealing rings (13) are attached to the outer wall of the cover plate (10).

5. A high strength bushing as claimed in claim 1, wherein: annular oil groove (4) have been seted up to the inner wall of bushing pipe (1) in the tungsten steel, taper hole (2) all communicate with annular oil groove (4), a plurality of sharp oil groove (5) have been seted up to the inner wall of bushing pipe (1) in the tungsten steel, sharp oil groove (5) all communicate with annular oil groove (4).