Detachable hobbing device for roller screen

Abstract

The invention discloses a detachable hobbing device for a roller screen. The detachable hobbing device for the roller screen comprises rollers 2 which are arranged at the two ends of a roller screen support through bearing pedestals 1, split type hobbing teeth 3 which are sequentially connected to the rollers 2, and distance sleeves 4 which are arranged between the adjacent split type hobbing teeth 3. Detachable devices are arranged between the split type hobbing teeth 3 and the rollers 2. When the hobbing teeth need to be replaced, the interconnection of the hobbing teeth, the rollers and the distance sleeves is relieved through the detachable devices. Due to the fact that the split type hobbing teeth 3 are designed, the hobbing teeth needing to be replaced are separated directly so that novel hobbing teeth can be mounted, other distance sleeves and hobbing teeth do not need to be removed from the rollers one by one any more, time and labor are saved in the replacing process, meanwhile, recovery assembly of the hobbing teeth or the distance sleeves and the rollers is avoided, and the problem that the service life is shortened due to assembly errors can be solved.

Description

technical field [0001] The invention relates to the field of coal mine equipment, in particular to a detachable hobbing device for roller screens. Background technique [0002] Coal mine roller screen is a device that arranges rolling shafts with multiple hobbing teeth horizontally in rows to form a rolling screen surface and drives the rollers to rotate through chains. The hobbing teeth on the rolling shafts are set at intervals through spacers. The particles are sent to the front end of the rotating rolling screen, and the fine coal particles fall through the sieve holes formed between the rolling shafts on the rolling screen surface or between two hobs, and the remaining large particles will pass through the rotating hobs or The spacer sleeve is pushed to the end of the rolling screen to leave the rolling screen surface. During the screening process, when it is necessary to replace the worn or damaged hobbing gear, because the hobbing gear adopts an integral structure, it...

AI Technical Summary

Problems solved by technology

[0002] Coal mine roller screen is a device that arranges rolling shafts with multiple hobbing teeth horizontally in rows to form a rolling screen surface and drives the rollers to rotate through chains. The hobbing teeth on the rolling shafts are set at intervals through spacers. The particles are sent to the front end of the rotating rolling screen, and the fine coal particles fall through the sieve holes formed between the rolling shafts on the rolling screen surface or between two hobs, and the remaining large particles will pass through the rotating hobs or The spacer sleeve is pushed to the end of the rolling screen to leave the rolling screen surface. During the screening process, when it is necessary to replace the worn or damaged hobbing gear, because the hobbing gear adopts an integral structure, it is necessary to disassemble the gear at the end of the rolling shaft first. bearing housing, then remove the spacer and hobs, especially when the hobs in the middle of the roller need to be replaced, more hobs and spacers need to be removed one by one along the roller, and then the complete hob Replace them, and finally restore and install the removed hobs and spacers. The entire replacement process is time-consuming and laborious. The connection has been fully run-in, if the restoration sequence is improper, it will lead to large assembly errors and affect the service life

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