Quick connecting device for drill bit of anchor changing machine

Abstract

The invention relates to a quick connecting device for a drill bit of an anchor changing machine. The quick connecting device comprises a steel ball and a connecting seat, wherein the connecting seat is mounted on a connecting pipe of the anchor changing machine; a connecting hole, a sliding hole and a locking hole are formed in the connecting seat; the steel ball is movably inserted into the locking hole; a driving block is inserted into the sliding hole in a sliding manner; pressing-in inclined surfaces or pressing-in arc surfaces are arranged at the two ends of the driving block; a connecting sleeve is fixed on the connecting seat and is opposite to the sliding hole; a driving spring is positioned between the driving block and the connecting sleeve; a locking ring and a loosening ring are arranged on the locking sleeve; the locking sleeve is inserted into the connecting seat in a sliding manner and is opposite to the locking hole; a driving hole and an anti-falling hole are formed in the tail part of the drill bit; and the height of the drill bit is not greater than that of a rail surface. According to the quick connecting device for the drill bit of the anchor changing machine, the drill bit rotates along with the driving block and the driving hole, and the drill bit is locked and loosened by the locking sleeve and the steel ball; and the drill bit is convenient and quick to assemble and disassemble, high in safety, high in drilling efficiency and long in service life, and does not affect the passing of a train; the drill bit is unlikely to damage.

Description

technical field [0001] The invention relates to a windlass changer, in particular to a fast connection device for a windlass changer drill bit. Background technique [0002] After the bolts used to anchor the rail on the concrete sleeper rail are damaged, a windlass is usually used to drill holes, remove the damaged bolts, and then pour new bolts. Because many anchor changes are carried out on normal railways, they need to stop working when the train passes by. The existing windlass needs to be pulled out together with the drill bit when the train comes, and reinserted into the hole after the train leaves. Continuing to drill, this method has the following problems: [0003] 1. It takes a long time to pull out the drill bit, and for a fast-speed train, this maintenance method has a greater safety risk; [0004] 2. It is easy to cause damage to the drill bit during the process of inserting and pulling out the drill bit. Contents of the invention [0005] In order to solv...

AI Technical Summary

Problems solved by technology

[0003] 1. It takes a long time to pull out the drill bit, and for a fast-speed train, this maintenance method has a greater safety risk;

[0004] 2. It is easy to cause damage to the drill bit during the process of inserting and pulling out the drill bit

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