Hammer pulling device

Abstract

The invention provides a hammer pulling device, and belongs to the field of bearing disassembly devices of mining machinery. The device comprises a sliding rod and a hammer body connected with the sliding rod in a sliding manner, wherein a baffle is arranged at one end of the sliding rod; a sleeve is arranged at the other end of the sliding rod; the sleeve is provided with a fastening structure used for fastening a bearing. When the hammer pulling device is in use, the bearing is fastened through the fastening device on the sleeve, and then the hammer body is rapidly and forcibly pulled, so that the hammer body slides along the sliding rod to impact the baffle, the hammer body applies strong instantaneous apply force to the baffle, so that the baffle drives the sliding rod, the sliding rod drives the sleeve, and the sleeve has a lifting effect on the bearing, thereby pulling out the bearing. The hammer pulling device can properly disassemble bearings on mining machinery, has a simple structure, and is easy to operate.

Description

technical field [0001] The invention relates to the field of bearing removal devices for mining machinery, in particular to a pull hammer device. Background technique [0002] In commonly used mining machinery, such as coal shearers, bearings are important transmission components. The bearings are subject to severe impact and long-term wear during the mining process, which will lead to a decrease in service life. Therefore, the bearings need to be disassembled and replaced. However, after the bearing has been used for a long time, due to reasons such as rust and corrosion, the bearing is difficult to pull out. The existing bearing dismounting method generally uses a sledgehammer to knock, and then manually pulls out the bearing. This method is not only time-consuming and laborious, but also difficult to pull out the bearing. Contents of the invention [0003] The present invention provides a pull hammer device, aiming to improve the above problems. [0004] The present i...

AI Technical Summary

Problems solved by technology

[0002] In commonly used mining machinery, such as coal shearers, bearings are important transmission components. The bearings are subject to severe impact and long-term wear during the mining process, which will lead to a decrease in service life, so the bearings need to be disassembled and replaced.

However, after the bearing is used for a long time, it is difficult to pull out the bearing due to rust, corrosion and other reasons.

The existing bearing removal method is generally to use a sledgehammer to knock out the bearing, and then manually pull out the bearing. This method is not only time-consuming and laborious, but also difficult to pull out the bearing.

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