CN217669185U

CN217669185U - Quick detachable electric shovel head sheave axle

Info

Publication number: CN217669185U
Application number: CN202220975183.9U
Authority: CN
Inventors: 刘丽; 杨勇; 张忠政; 吕涛; 王振和; 杜广龙
Original assignee: Angang Group Mining Co Ltd
Current assignee: Angang Group Mining Co Ltd
Priority date: 2022-04-26
Filing date: 2022-04-26
Publication date: 2022-10-28
Anticipated expiration: 2032-04-26

Abstract

The utility model aims at solving the problem of maintenance existence is dismantled to current electric shovel day arbor wheel, provides an easy detachable electric shovel day arbor, belongs to mine equipment technical field. The electric shovel crown gear shaft easy to disassemble provided by the technical scheme comprises a half shaft hole arranged at the end part of a cantilever, a bearing cover connected with the end part of the cantilever and a crown gear shaft; half shaft hole and bearing cap inside constitute whole shaft hole, in the shaft hole is inserted to the head sheave axle. Carry out structural improvement with electric shovel day shaft in this design, change the integral type shaft hole into split type shaft hole, change the day shaft into two side screw shafts. The improved electric shovel head sheave shaft is easy to disassemble, convenient to maintain, time-saving and labor-saving.

Description

Quick detachable electric shovel head sheave axle

Technical Field

The utility model belongs to the technical field of mining equipment, in particular to quick detachable electric shovel head sheave shaft hole.

Background

The 4-cubic meter electric shovel is a common excavating device for open-air iron ores, wherein a cantilever of the WK-4 type electric shovel is a main component of the electric shovel device and bears the weight of the whole pushing mechanism and the lifting, excavating and cargo carrying weight in the work of the electric shovel, and particularly, the topmost head sheave of the cantilever is used as a supporting and sliding wheel of a lifting rope and bears the main work of bucket lifting, excavating and unloading. The frequent use of the head sheave causes the abrasion of the head sheave shaft and the parts thereon to be serious. When replacing the overwear limited crown pulley shaft and the upper parts thereof, because the crown pulley shaft hole 2 and the cantilever 1 are an integrated piece which is a closed whole, the crown pulley shaft is a stepped structure with one end thread 3 and the other end fixed collar 4, and the diameter of the fixed collar is larger than the mounting diameter of the shaft hole, as shown in figures 1 and 2, the disassembly and the mounting sequence of the parts on the shaft are limited, and 4m is caused ³ The chain stay of electric shovel's head sheave axle on stationary collar one side or when the limit is changed, its installation and dismantlement all need the screw thread end of axle earlier to begin to dismantle epaxial part, follow the order and dismantle epaxial part after, take the axle out, after the new chain stay of renewal, again in proper order with epaxial part assembly, screw up left side screw thread at last, whole change installation process is complicated, still need the crane cooperation, waste maintenance man-hour expense promptly, also increase the handling expense of crane, can lead to last cantilever left side shaft hole to pack into because of minimum error even at last, increase maintenance man-hour, influence the rate of starting of equipment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem of the existing disassembly and maintenance of the existing electric shovel crown block wheel, and provides a quick detachable electric shovel crown block wheel shaft. Carry out structural improvement with electric shovel day shaft in this design, change the integral type shaft hole into split type shaft hole, change the day shaft into two side screw shafts. The improved electric shovel head sheave shaft is easy to disassemble, convenient to maintain, time-saving and labor-saving.

An electric shovel crown wheel shaft easy to disassemble comprises a half shaft hole arranged at the end part of a cantilever, a bearing cover connected with the end part of the cantilever and a crown wheel shaft;

half shaft hole and bearing cap inside constitute whole shaft hole, in the shaft hole is inserted to the head sheave axle.

Further, according to the easily detachable electric shovel crown wheel shaft, the bearing cover is connected with the end portion of the cantilever through a bolt.

Furthermore, above-mentioned quick detachable electric shovel day shaft, the day shaft both ends are equipped with the screw thread, and the nut through day shaft both ends is fixed in the cantilever with the day shaft.

Compared with the prior art, the utility model has the advantages that:

the electric shovel head sheave axle after the improvement is quick detachable, when needing to change head sheave axle or each parts on the head sheave axle, can come the dismouting adjacent part through the nut of the arbitrary one end of head sheave axle of pine or the bolt on the bearing frame, and maintenance work is more convenient, swift, saves time, laborsaving, improve the rate of starting of equipment.

Drawings

FIG. 1 is a schematic front view of an original integrated cantilever head sheave shaft hole;

FIG. 2 is a schematic top view of an original integrated cantilever wheel shaft;

FIG. 3 is a schematic front view of a modified head sheave shaft hole;

FIG. 4 is a schematic top view of the modified head sheave axle;

the device comprises a cantilever 1, a cantilever 2, a head sheave shaft hole 3, a thread 4, a fixed shaft collar 5, a bearing cover 6, a head sheave shaft 7 and a bolt.

Detailed Description

Example 1

An electric shovel crown wheel shaft easy to disassemble comprises a half shaft hole arranged at the end part of a cantilever 1, a bearing cover 5 connected with the end part of the cantilever and a crown wheel shaft 6;

half shaft hole and bearing cap inside constitute whole shaft hole, the bearing cap passes through bolt 7 with the cantilever tip and is connected, in the head sheave axle inserts the shaft hole, head sheave axle both ends are equipped with screw thread 3, are fixed in the head sheave axle on the cantilever through the nut at head sheave axle both ends.

The improved electric shovel head sheave shaft is easy to disassemble, and when the head sheave shaft or each part on the head sheave shaft needs to be replaced, the head sheave shaft or the part adjacent to the bearing seat can be disassembled by loosening the nut at any end of the head sheave shaft or the bolt on the bearing seat.

Claims

1. The electric shovel crown wheel shaft easy to disassemble is characterized by comprising a half shaft hole arranged at the end part of a cantilever, a bearing cover connected with the end part of the cantilever and a crown wheel shaft;

2. The removable shovel crown wheel shaft according to claim 1, wherein the bearing cap is bolted to the end of the boom.

3. The easy-to-detach electric shovel head sheave shaft as claimed in claim 1, wherein the head sheave shaft is threaded at both ends and is fixed to the cantilever by nuts at both ends of the head sheave shaft.