DRIVE UNIT OF DRUM OF MINING MACHINE AND GUIDING BOOT FOR IT Russian patent published in 2011 - IPC E21C29/02 

FIELD: machine building.

SUBSTANCE: drive unit for drum mining machine consists of rotating driven tooth gear engaged with cocking which transfers drum mining machine, of transfer tooth gear coaxial relative to rotation axis of the driven tooth gear and connected to driven tooth gear but without turning, of at least one removable guiding boot designed for direction of drum mining machine on cocking, and of main plate of case, whereon there rests and is secured without turning support pipe coaxial relative to rotation axis. By means of a removable bolt passing through internal orifice of the support pipe and forming a rotary support the guiding boot is secured on the main plate; and/or a support bush sleeve is located between the driven tooth gear and the support plate. The support bush sleeve rests with rotation on the support plate by means of at least one bearing from the side of an end of the support pipe facing away from the main plate of the case.

EFFECT: simplified and accelerated assembly and disassembly of worn parts such as driven gear and guiding boot.

12 cl, 7 dwg