Disk type puller for coal cutting part motor of underground coal mine heading machine

Abstract

The invention relates to a disk type puller for a coal cutting part motor of an underground coal mine heading machine, and aims to be useful, high-efficiency and quick. The disk type puller comprisesconnecting blocks, semi-circular disks, clamping blocks, pulling rods, a hydraulic jack and a supporting disk, wherein the connecting blocks are welded to two outer ends of a diameter line of each semi-circular disk; the semi-circular disks and the clamping blocks take the shape of a semi-circular-ring; the semi-circular-ring outer diameter of the clamping blocks is the same as the inner diameterof the semi-circular disk; the semi-circular disk and the semi-circular-ring clamping blocks are welded and fixed; the two semi-circular disks are integrated and connected through the connecting blocks and screws to form an integral circular-ring structure; long-strip shaped pulling rod connecting holes are respectively formed in each of the semi-circular disks and the supporting disk along the radius line of the disk; a fixed pulling rod penetrates between each supporting disk and the corresponding pulling rod connecting hole in the semi-circular disk, and is fixed by assorted screws; and thebottom of the hydraulic jack is mounted at the center of the supporting disk.

Description

technical field [0001] The invention relates to an improvement of a puller for a motor in a coal cutting section of an underground tunneling machine in a coal mine. Background technique [0002] The puller is an important tool used to replace the motor wheel in coal mines. The common structure is a structural component that can pull out the motor wheel and is composed of claws, hydraulic jacks and pressing rods connected by bolts. However, when the traditional puller pulls out the spline sleeve of the motor of the coal-cutting part of the roadheader underground, because the outer wall of the spline sleeve is too narrow, the pulling claws are not easy to apply force, so the puller is extremely difficult, time-consuming and laborious, and it is difficult for the underground to work normally. Production work has brought great inconvenience. Moreover, in the process of pulling out, once the connection between the wheel and the motor is too tight, the wheel or the motor shaft is...

AI Technical Summary

Problems solved by technology

[0002] The puller is an important tool used to replace the motor wheel in coal mines. The common structure is a structural component that can pull out the motor wheel and is composed of claws, hydraulic jacks and pressing rods connected by bolts. However, when the traditional puller pulls out the spline sleeve of the motor of the coal-cutting part of the roadheader underground, because the outer wall of the spline sleeve is too narrow, the pulling claws are not easy to apply force, so the puller is extremely difficult, time-consuming and laborious, and it is difficult for the underground to work normally. Production work has brought great inconvenience

Moreover, in the process of pulling out, once the connection between the wheel and the motor is too tight, it is often very easy to damage the wheel or the motor shaft. In addition, it is also difficult to install, and generally requires at least two people to cooperate with each other to complete.

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