CN211992726U

CN211992726U - Electric shovel action wheel axle bush extracting tool

Info

Publication number: CN211992726U
Application number: CN202020168135.XU
Authority: CN
Inventors: 白金龙; 吕二永
Original assignee: Baotou Iron and Steel Group Co Ltd
Current assignee: Baotou Iron and Steel Group Co Ltd
Priority date: 2020-02-13
Filing date: 2020-02-13
Publication date: 2020-11-24
Anticipated expiration: 2030-02-13

Abstract

The utility model discloses an electric shovel driving wheel bearing bush dismounting tool, which comprises 4 lead screws and a bottom plate; compared with manual disassembly, the utility model avoids the bearing bush from inclining in the base, does not damage the inner hole of the base, has good safety, saves time and labor, reduces the labor intensity of operators and improves the working efficiency; simple structure, low manufacturing cost, convenient use and wide popularization and application.

Description

Electric shovel action wheel axle bush extracting tool

Technical Field

The utility model relates to the technical field of mechanical tool, especially, relate to an electric shovel action wheel axle bush extracting tool.

Background

The WK-20M3 electric shovel is currently the main equipment for mining rocks in mines. Because the electric shovel operation equipment often continuous operation, need unscheduled survey the electric shovel action wheel axle bush clearance, surpass certain limit to axle bush and driving wheel axle clearance, need arrange to overhaul the change to wearing and tearing axle bush. At present, prior art adopts manual operation to change the electric shovel action wheel axle bush, screws up four jackscrews through the circulation when changing the axle bush and extrudes the axle bush, at the in-process of split, must artifically twist the jackscrew nut, guarantees simultaneously that the atress of four jackscrews is the same, and the axle bush just can steadily take out. In the manual operation process, once a certain jackscrew is slightly stressed, the bearing bush is inclined in the base, so that the bearing bush is easy to take out, and the inner hole of the base is scratched seriously; because the WK-20M3 electric shovel is large in size and the mass of a single bearing bush is large, a maintainer consumes large physical strength and is long in dismounting time and high in labor intensity; moreover, because the bearing bush has large mass, the potential safety hazard of personal injury to operators caused by accidental slipping exists;

therefore, the technical personnel in the field are dedicated to developing a tool for disassembling the bearing bush of the driving wheel of the electric shovel, and the tool is used for solving the problem of defects in the process of disassembling the bearing bush of the driving wheel of the electric shovel.

SUMMERY OF THE UTILITY MODEL

In view of prior art's above-mentioned defect, the utility model aims to solve the technical problem that among the prior art, the artifical dismantlement in-process of electric shovel action wheel axle bush, the axle bush easily takes place the slope in the base, leads to the axle bush not to follow and takes out, scratch base hole, intensity of labour is big, has the defect problem of personal injury's potential safety hazard.

In order to achieve the purpose, the utility model provides a dismounting tool for an electric shovel driving wheel bearing bush, which comprises 4 lead screws and a bottom plate; the 4 screw rods are equal in length and are respectively positioned near four corners of the bottom plate corresponding to the positions of the screw ejecting holes on the bearing bushes;

furthermore, the electric shovel driving wheel bearing bush dismounting tool is made of stainless steel;

the bottom plate is rectangular and has the same size as a bearing bush of a driving wheel of the electric shovel;

scheme more than adopting, the utility model discloses an electric shovel action wheel axle bush extracting tool has following technological effect:

1. the utility model discloses an electric shovel action wheel axle bush extracting tool, through corresponding the lead screw that puts 4 length equals in the jackscrew hole of electric shovel action wheel axle bush, adopt the press to carry out pressure application to the lead screw simultaneously, 4 jackscrews atresss are even, avoid the axle bush to take place to incline in the base, make the axle bush steadily take out, do not harm the base hole, the security is good; the hydraulic pressure replaces the single acting force of manually screwing the jackscrew, so that the labor intensity of operators is reduced, time and labor are saved, and the working efficiency is improved;

2. the utility model discloses an electric shovel action wheel axle bush extracting tool, simple structure, the cost of manufacture is low, convenient to use, can extensively be used for the dismantlement of each electric shovel action wheel axle bush, be favorable to extensive popularization and application;

to sum up, compared with manual disassembly, the electric shovel driving wheel bearing bush disassembling tool avoids the bearing bush from inclining in the base, does not damage the inner hole of the base, has good safety, saves time and labor, reduces the labor intensity of operators, and improves the working efficiency; simple structure, low manufacturing cost, convenient use and wide popularization and application.

The conception, specific structure and technical effects of the present invention will be further described with reference to the accompanying drawings and specific embodiments, so as to fully understand the objects, features and effects of the present invention.

Drawings

FIG. 1 is a schematic view of the structure and use of the electric shovel driving wheel bearing bush disassembling tool of the present invention;

in the figure, 1, a jackscrew hole; 2. a driving wheel shaft; 3. bearing bushes; 4. a lead screw; 5. a base plate.

Detailed Description

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings for clarity and understanding of the technical contents. The present invention may be embodied in many different forms of embodiments, and the scope of the invention is not limited to the embodiments described herein.

In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. The thickness of the components may be exaggerated where appropriate in the figures to improve clarity.

As shown in fig. 1, the electric shovel driving wheel bearing bush dismounting tool of the utility model comprises 4 lead screws 4 and a bottom plate 5; the bottom plate 5 is rectangular and has the same size as the electric shovel driving wheel bearing bush 3; the 4 lead screws 4 are equal in length and are respectively positioned near four corners of the bottom plate 5 corresponding to the positions of the jackscrew holes 1 on the bearing bushes 3;

in the present embodiment, the lead screw 4 and the bottom plate 5 are made of stainless steel;

the working and using process is as follows:

when the electric shovel driving wheel bearing bush 3 is disassembled, 4 lead screws 4 are correspondingly screwed into the jackscrew holes 1 of the bearing bush 3, then a matched 20T press is used, the hydraulic cylinder part of the 20T press is enabled to prop against the driving wheel shaft 2 of the electric shovel, the bottom of the 20T press is arranged on the bottom plate 5, then a pressing rod of the 20T press is operated to jack up the 20T press step by step, and the bearing bush 3 is pulled out stably through the lead screws 4 under the pressure of the 20T press.

Through practical use, according to the electric shovel driving wheel bearing bush dismounting tool, an operator only needs to align the lead screw with the lead screw hole and operate the pressing rod to stably pull out the bearing bush, the whole operation process is simple, the bearing bush does not incline in the base, the inner hole of the base is not scratched, the bearing bush does not stably fall off, and the safety of the electric shovel driving wheel bearing bush dismounting tool is good for the operator.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the teachings of this invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. A dismounting tool for a bearing bush of a driving wheel of an electric shovel is characterized by comprising 4 lead screws (4) and a bottom plate (5); the lengths of the 4 lead screws (4) are equal, and the positions of the lead screws corresponding to the positions of the jackscrew holes (1) on the bearing bushes (3) are respectively positioned near four corners of the bottom plate (5).

2. The tool of claim 1,

the root lead screw (4) and the bottom plate (5) are made of stainless steel.

3. The tool of claim 1,

the bottom plate (5) is rectangular and has the same size as the electric shovel driving wheel bearing bush (3).