CN215171576U

CN215171576U - Self-lubricating excavator shaft sleeve

Info

Publication number: CN215171576U
Application number: CN202120491201.1U
Authority: CN
Inventors: 刘国泰; 李小杭; 朱启银; 罗庆尖; 黄太君
Original assignee: Lonking Fujian Excavator Co ltd
Current assignee: Lonking Fujian Excavator Co ltd
Priority date: 2021-03-08
Filing date: 2021-03-08
Publication date: 2021-12-14
Anticipated expiration: 2031-03-08

Abstract

The utility model discloses a self-lubricating excavator axle sleeve, which comprises a housin, shells inner wall is provided with interior axle sleeve, and the oil groove that the equidistance distributes is seted up to interior axle sleeve inner wall, shells outer wall is provided with lubricated room, and lubricated indoor wall has seted up the oil inlet, the one end outer wall that lubricated room kept away from the oil inlet has seted up the oil-out, and oil inlet and oil-out inner wall all overlap and be equipped with the closing cap, the screwed pipe of symmetric distribution is all welded to shells both sides outer wall, and screwed pipe outer wall spiro union has solid fixed ring, the axle sleeve mouth has all been seted up to interior axle sleeve both sides outer wall, shells both sides outer wall all is provided with L type fixed plate. The utility model discloses the oil groove that the equidistance distributes has been seted up to the inner wall of inner sleeve to having set up the lubrication chamber in the one end of oil groove and having stored lubricating oil, lubricated effectual, through mutually supporting of oil inlet and oil-out simultaneously, make the mode that lubricating oil added and changed simplify, reduced the work burden, the work efficiency who improves.

Description

Self-lubricating excavator shaft sleeve

Technical Field

The utility model relates to an axle sleeve technical field especially relates to a self-lubricating excavator axle sleeve.

Background

The shaft sleeve is a cylindrical mechanical part sleeved on the rotating shaft and is a component of the sliding bearing. Typically, the sleeve is an interference fit with the bearing seat and a clearance fit with the shaft. The shaft sleeve requires low hardness and is wear-resistant, the inner hole of the shaft sleeve can reach high matching precision through grinding and scraping, an oil groove of lubricating oil is required on the inner wall, the lubrication of the shaft sleeve is very important, and the shaft sleeve can be scrapped quickly through dry grinding.

Install the axle sleeve on the excavator and need dismantle the axle sleeve earlier when adding lubricating oil, but current axle sleeve all welds to die on the excavator, and the dismantlement mode is very complicated, greatly increased work burden, influence work efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a self-lubricating excavator shaft sleeve.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a self-lubricating excavator axle sleeve, includes the casing, shells inner wall is provided with interior axle sleeve, and the oil groove that the equidistance distributes is seted up to interior axle sleeve inner wall, shells outer wall is provided with lubricated room, and lubricated indoor wall has seted up the oil inlet, the one end outer wall that lubricated room kept away from the oil inlet has seted up the oil-out, and oil inlet and oil-out inner wall all overlap and be equipped with the closing cap, the screwed pipe of symmetric distribution is all welded to casing both sides outer wall, and screwed pipe outer wall spiro union has solid fixed ring, the axle sleeve mouth has all been seted up to interior axle sleeve both sides outer wall, casing both sides outer wall all is provided with L type fixed plate.

Preferably, the size of the sealing cover is matched with the inner diameter size of the oil inlet and the oil outlet, and the inner diameter size of the threaded pipe is larger than that of the shaft sleeve opening.

Preferably, two the equal swivelling joint of solid fixed ring one side outer wall has the bolt of symmetric distribution, and the external screw thread size of screwed pipe and solid fixed ring's internal screw thread size looks adaptation.

Preferably, the welding of interior axle sleeve inner wall has the spacing ring of symmetric distribution, and is provided with the sealing ring between spacing ring and the interior axle sleeve, form interference fit between spacing ring, sealing ring and the interior axle sleeve, and the sealing ring internal diameter size is greater than the internal diameter size of spacing ring and axle sleeve mouth.

Preferably, the outer walls of the two sides of the shell are provided with threaded holes, and the shell is fixedly connected with the L-shaped fixing plate through bolts.

Preferably, a rubber pad is bonded to the outer wall of one end, close to the lubricating chamber, of the sealing cover, and the size of the rubber pad is larger than the inner diameters of the oil inlet and the oil outlet.

The utility model has the advantages that:

1. according to the shaft sleeve of the self-lubricating excavator, the oil grooves distributed at equal intervals are formed in the inner wall of the inner shaft sleeve, the lubricating chamber is arranged at one end of each oil groove to store lubricating oil, the lubricating effect is good, and meanwhile, through the mutual matching of the oil inlet and the oil outlet, the adding and replacing modes of the lubricating oil are simplified, the work load is reduced, and the work efficiency is improved;

2. this self-lubricating excavator axle sleeve of design has set up two screwed pipes in the both sides of casing, and the spiro union has solid fixed ring on the screwed pipe, makes the axle sleeve realize first fixed mode through mutually supporting of screwed pipe and solid fixed ring, has realized the second kind fixed mode of axle sleeve simultaneously through mutually supporting of casing and L type fixed plate, two kinds of fixed mode simple structures, easy dismounting, easy operation.

Drawings

Fig. 1 is a cross-sectional view of the whole structure of a shaft sleeve of a self-lubricating excavator provided by the utility model;

fig. 2 is a schematic structural view of an inner shaft sleeve of a self-lubricating excavator shaft sleeve provided by the present invention;

fig. 3 is the utility model provides an enlarged schematic view of a part of a structure of self-lubricating excavator axle sleeve.

In the figure: the oil-gas seal structure comprises a shell 1, an inner shaft sleeve 2, an oil groove 3, a lubrication chamber 4, an oil inlet 5, an oil outlet 6, a sealing cover 7, a threaded pipe 8, a fixing ring 9, a limiting ring 10, a sealing ring 11, a shaft sleeve opening 12, a fixing plate 13L, a threaded hole 14 and a rubber cushion 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a self-lubricating excavator shaft sleeve comprises a shell 1, wherein an inner shaft sleeve 2 is arranged on the inner wall of the shell 1, oil grooves 3 distributed equidistantly are formed in the inner wall of the inner shaft sleeve 2, a lubricating chamber 4 is formed in the outer wall of the shell 1, an oil inlet 5 is formed in the inner wall of the lubricating chamber 4, an oil outlet 6 is formed in the outer wall of one end, away from the oil inlet 5, of the lubricating chamber 4, a sealing cover 7 is sleeved on the inner walls of the oil inlet 5 and the oil outlet 6, the oil grooves 3 distributed equidistantly are formed in the inner wall of the inner shaft sleeve 2, the lubricating chamber 4 is arranged at one end of the oil groove 3 to store lubricating oil, the lubricating effect is good, and meanwhile, through the mutual matching of the oil inlet 5 and the oil outlet 6, the adding and replacing modes of the lubricating oil are simplified, the work burden is reduced, and the work efficiency is improved;

the outer walls of two sides of the shell 1 are welded with symmetrically distributed screwed pipes 8, the outer walls of the screwed pipes 8 are screwed with fixing rings 9, the outer wall of one side of each fixing ring 9 is rotatably connected with symmetrically distributed bolts, the size of the external thread of each screwed pipe 8 is matched with the size of the internal thread of each fixing ring 9, the outer walls of two sides of the inner shaft sleeve 2 are provided with shaft sleeve openings 12, the size of the sealing cover 7 is matched with the size of the internal diameters of the oil inlet 5 and the oil outlet 6, the size of the internal diameter of each screwed pipe 8 is larger than the size of the internal diameter of each shaft sleeve opening 12, the inner wall of the inner shaft sleeve 2 is welded with symmetrically distributed limiting rings 10, sealing rings 11 are arranged between the limiting rings 10 and the inner shaft sleeve 2, interference fit is formed among the limiting rings 10, the sealing rings 11 and the inner shaft sleeve 2, the size of the internal diameter of each sealing ring 11 is larger than the size of the internal diameters of the limiting rings 10 and the shaft sleeve openings 12, and L-shaped fixing plates 13 are arranged on the outer walls of two sides of the shell 1, two threaded pipes 8 are arranged on two sides of the shell 1, fixing rings 9 are screwed on the threaded pipes 8, a first fixing mode of the shaft sleeve is realized through the mutual matching of the threaded pipes 8 and the fixing rings 9, and a second fixing mode of the shaft sleeve is realized through the mutual matching of the shell 1 and the L-shaped fixing plate 13;

threaded holes 14 are formed in the outer walls of two sides of the shell 1, the shell 1 is fixedly connected with the L-shaped fixing plate 13 through bolts, a rubber pad 15 is bonded to the outer wall of one end, close to the lubricating chamber 4, of the sealing cover 7, and the size of the rubber pad 15 is larger than the inner diameter of the oil inlet 5 and the inner diameter of the oil outlet 6.

The working principle is as follows: when the inside lubricating oil that needs to be changed of axle sleeve, at first open closing cap 7 in the oil-out 6, discharge the outside of axle sleeve with lubricating oil, then sealed good oil-out 6, open oil inlet 5, add lubricating oil to the inside of axle sleeve from oil inlet 5, realize the change of lubricating oil, two screwed pipes 8 have been set up in the both sides of casing 1, the spiro union has solid fixed ring 9 on the screwed pipe 8, make the axle sleeve realize the first fixed mode through mutually supporting of screwed pipe 8 and solid fixed ring 9, the second kind fixed mode of axle sleeve has been realized through mutually supporting of casing 1 and L type fixed plate 13 simultaneously, two kinds of fixed modes can be fixed according to actual conditions.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A self-lubricating excavator shaft sleeve comprises a shell (1) and is characterized in that an inner shaft sleeve (2) is arranged on the inner wall of the shell (1), and the inner wall of the inner shaft sleeve (2) is provided with oil grooves (3) which are distributed at equal intervals, the outer wall of the shell (1) is provided with a lubricating chamber (4), an oil inlet (5) is arranged on the inner wall of the lubricating chamber (4), an oil outlet (6) is arranged on the outer wall of one end of the lubricating chamber (4) far away from the oil inlet (5), and the inner walls of the oil inlet (5) and the oil outlet (6) are sleeved with sealing covers (7), the outer walls of the two sides of the shell (1) are welded with symmetrically distributed screwed pipes (8), the outer wall of the threaded pipe (8) is screwed with a fixed ring (9), the outer walls of the two sides of the inner shaft sleeve (2) are both provided with shaft sleeve openings (12), the outer walls of two sides of the shell (1) are provided with L-shaped fixing plates (13).

2. The bushing for a self-lubricating excavator according to claim 1, wherein the size of the sealing cover (7) is adapted to the inner diameter size of the oil inlet (5) and the oil outlet (6), and the inner diameter size of the threaded pipe (8) is larger than the inner diameter size of the bushing opening (12).

3. The shaft sleeve of the self-lubricating excavator according to claim 1, wherein the outer walls of one sides of the two fixing rings (9) are rotatably connected with symmetrically distributed bolts, and the size of the external thread of the threaded pipe (8) is matched with the size of the internal thread of the fixing rings (9).

4. The shaft sleeve of the self-lubricating excavator according to claim 1, wherein the inner wall of the inner shaft sleeve (2) is welded with the limit rings (10) which are symmetrically distributed, a sealing ring (11) is arranged between the limit ring (10) and the inner shaft sleeve (2), interference fit is formed among the limit rings (10), the sealing ring (11) and the inner shaft sleeve (2), and the inner diameter of the sealing ring (11) is larger than the inner diameter of the limit rings (10) and the shaft sleeve opening (12).

5. The shaft sleeve of the self-lubricating excavator according to claim 1, wherein threaded holes (14) are formed in the outer walls of two sides of the shell (1), and the shell (1) is fixedly connected with the L-shaped fixing plate (13) through bolts.

6. The shaft sleeve of the self-lubricating excavator according to claim 1, wherein a rubber pad (15) is bonded to the outer wall of one end of the sealing cover (7) close to the lubricating chamber (4), and the size of the rubber pad (15) is larger than the inner diameters of the oil inlet (5) and the oil outlet (6).