CN215706750U

CN215706750U - Wear-resistant thrust wheel for excavator

Info

Publication number: CN215706750U
Application number: CN202121186867.2U
Authority: CN
Inventors: 李蓉
Original assignee: Quanzhou Kaihe Precision Mechanical Parts Co ltd
Current assignee: Quanzhou Kaihe Precision Mechanical Parts Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2022-02-01
Anticipated expiration: 2031-05-31

Abstract

The utility model relates to the technical field of excavator accessories, in particular to a wear-resistant thrust wheel for an excavator, which comprises a shaft body, a first wheel body, a second wheel body and a sealing ring, wherein annular baffles are arranged on two sides of the shaft body, the first wheel body is sleeved on the shaft body, the second wheel body is sleeved on the first wheel body, two ends of the first wheel body and two ends of the second wheel body are connected through floating oil seals, the sealing ring is positioned between the annular baffles and the second wheel body and respectively forms a revolute pair with the annular baffles and the second wheel body, the design of the double wheel bodies is uniquely adopted to improve the rotational lubricity of the thrust wheel, and meanwhile, the annular baffles and a containing cavity quota are utilized to reduce foreign matters from entering a gap, so that the problems of insufficient lubrication and gradual failure caused by oil leakage of the existing thrust wheel due to insufficient tightness can be avoided, the wear-resistant thrust wheel has practical significance and popularization value, and can be expected to generate good economic benefit.

Description

Wear-resistant thrust wheel for excavator

Technical Field

The utility model relates to the technical field of excavator accessories, in particular to a wear-resistant thrust wheel for an excavator.

Background

The crawler-type chassis has strong bearing capacity and adaptability to terrain, so that the crawler-type chassis is widely used as a walking or transmission mechanism of engineering machinery such as an excavator, a bulldozer, a rotary drilling rig, a crawler crane and the like, generally comprises a crawler and a driving wheel, a guide wheel, a supporting wheel, a riding wheel and the like arranged in the crawler, and is commonly called as 'four wheels and one belt' which are directly related to the working performance and the walking performance of engineering machinery equipment such as the excavator, the bulldozer, the rotary drilling rig, the crawler crane and the like.

Traditional thrust wheel is worn and torn easily, except that this hardness of thrust wheel material is not enough, the wear-resisting type is not enough reason, because the thrust wheel body is rotatory all the time around the axis body, because excavator operational environment is comparatively abominable, the foreign matter permeates in the clearance of thrust wheel easily and leads to sealed gradual failure, the phenomenon of oil leak appears, the thrust wheel wearing and tearing can aggravate under lubricated not enough, the lubricated condition of nothing, this is the problem that design thrust wheel structure must consider at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a wear-resistant thrust wheel for an excavator, so as to solve the problems mentioned in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme that the wheel comprises a shaft body, a first wheel body, a second wheel body and a sealing ring, wherein annular baffles are arranged on two sides of the shaft body, the first wheel body is rotatably sleeved on the shaft body to form a revolute pair, the second wheel body is rotatably sleeved on the first wheel body to form a revolute pair, two ends of the first wheel body and two ends of the second wheel body are connected through floating oil seals, the sealing ring is positioned between the annular baffles and the second wheel body to form a revolute pair with the annular baffles and the second wheel body respectively, and gaps among the sealing ring, the first wheel body, the second wheel body and the shaft body form a containing cavity.

Preferably, the containing cavity is filled with a lubricating oil layer.

Preferably, the second wheel body is made of CrMo steel through heat treatment.

Preferably, the annular baffle and the shaft body are of an integrated structure.

Preferably, the first wheel body and the second wheel body are rotatable through a bearing ring.

From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages:

according to the wear-resistant thrust wheel for the excavator, the design of the first wheel body and the second wheel body is adopted, so that the rotating lubricity of the wheel bodies and the shaft body is improved, and the aggravation of the wear of the thrust wheel due to insufficient lubrication and no lubrication is avoided; be provided with annular baffle between axis body and second wheel body and avoid leading to sealed becoming invalid gradually in the foreign matter gets into the clearance of wheel body and axis body, floating oil seal, accomodate the chamber in addition and can also hold the tiny particle foreign matter of infiltration, avoid the direct card of foreign matter to go into the clearance of first wheel body and second wheel body, floating oil seal to lead to the thrust wheel to rotate not smooth.

The utility model improves the rotational lubricity of the thrust wheel by uniquely adopting a double-wheel body design, and simultaneously utilizes the quota of the annular baffle plate and the containing cavity and reduces foreign matters from entering the gap, so that the problems of insufficient lubrication and gradual failure of lubrication caused by oil leakage due to insufficient sealing performance of the conventional thrust wheel can be avoided, the practical significance and the popularization value are realized, and good economic benefit can be expected to be generated.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

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

FIG. 2 is a schematic cross-sectional configuration of the present invention;

FIG. 3 is a schematic view of the structure of portion A in FIG. 2;

in the figure: the wheel comprises a shaft body 1, an annular baffle 11, a first wheel body 2, a floating oil seal 21, a second wheel body 3, a sealing ring 4, a containing cavity 41, a lubricating oil layer 42 and a bearing ring 43.

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.

Examples

The utility model provides a wear-resisting type thrust wheel for excavator, includes axis body 1, first wheel body 2, second wheel body 3 and

sealing ring

4, 1 both sides of axis body are equipped with annular baffle 11 integratively, first wheel body 2 rotationally overlaps and locates on the axis body 1 rather than constituting the revolute pair, second wheel body 3 rotationally overlaps and locates on first wheel body 2 rather than constituting the revolute pair, and

first wheel body

2 and 3 both ends of second wheel body link to each other through floating oil seal 21, sealing ring 4 is located and constitutes the revolute pair with annular baffle 11, second wheel body 3 respectively between annular baffle 11 and second wheel body 3, the clearance constitution between sealing ring 4, first wheel body 2, second wheel body 3 and axis body 1 is accomodate chamber 41 and accomodates the intracavity 41 intussuseption and is filled with lubricating oil layer 42.

First wheel body 2, second wheel body 3 adopt CrMo steel material to make through thermal treatment, and CrMo steel has good wearability, can effectively reduce the wearing and tearing of second wheel body, reduces the consumption of material, improves its life.

First wheel body 2, second wheel body 3 realize rotatoryly through race ring 43, and race ring 43, floating oil seal 21 belong to prior art content, consequently no longer give unnecessary details to its concrete structure and theory of operation.

The working principle of the utility model is as follows: the double-wheel body design of the first wheel body 2 and the second wheel body 3 is adopted, so that the rotating lubricity of the wheel bodies and the shaft body 1 is improved, and the aggravation of the wear of the lower supporting wheel due to insufficient lubrication and no lubrication is avoided; be provided with annular baffle 11 between axis body 1 and second wheel body 3 and avoid the foreign matter to get into wheel body and axis body 1, lead to sealed becoming invalid gradually in the clearance of floating oil seal 21, accomodate the little granule foreign matter that chamber 41 can also hold the infiltration in addition, avoid the direct card of foreign matter to go into first wheel body 2 and second wheel body 3, the clearance of floating oil seal 21 to lead to the thrust wheel to rotate unsmoothly.

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. A wear-resisting type thrust wheel for excavator which characterized in that:

comprises a shaft body (1), a first wheel body (2), a second wheel body (3) and a sealing ring (4);

annular baffles (11) are arranged on two sides of the shaft body (1), the first wheel body (2) is rotatably sleeved on the shaft body (1) to form a revolute pair with the shaft body, the second wheel body (3) is rotatably sleeved on the first wheel body (2) to form a revolute pair with the first wheel body, and two ends of the first wheel body (2) and two ends of the second wheel body (3) are connected through floating oil seals (21);

the sealing ring (4) is located between the annular baffle (11) and the second wheel body (3) and forms a revolute pair with the annular baffle (11) and the second wheel body (3), and gaps among the sealing ring (4), the first wheel body (2), the second wheel body (3) and the shaft body (1) form a containing cavity (41).

2. A wear resistant thrust wheel for an excavator according to claim 1 wherein: and a lubricating oil layer (42) is filled in the accommodating cavity (41).

3. A wear resistant thrust wheel for an excavator according to claim 1 wherein: the second wheel body (3) is made of CrMo steel through heat treatment.

4. A wear resistant thrust wheel for an excavator according to claim 1 wherein: the annular baffle (11) and the shaft body (1) are of an integrated structure.

5. A wear resistant thrust wheel for an excavator according to claim 1 wherein: the first wheel body (2) and the second wheel body (3) can rotate through a bearing ring (43).