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1??ü′ê￡oìáéy?ê3μ ???ù?÷ áa?á?÷ ?÷?á

Abstract
JT Series hoist for coal, metal mining, non-metallic mineral movements in the tilt of roadway materials and personnel for use in small shaft can also be used as the upgrading of equipment. According to the different manufacturing process which could take the drum hoist structure casting a hybrid welding (support wheel for the casting, roller for welding) and the welding-type.
Reducer and the mechanical transmission system including the coupling, the main axis of mine hoist to raise the speed of a few because of the restrictions, generally 60 to 1 l0 / | between points, and the motor used to drag a few, generally 480 a 960 r / min between. In this way, in addition to the use of low-speed DC motor drag outside, under normal circumstances can not be directly connected to the motor spindle with the middle through reducer. Reducer thus slow down India's role is to transfer power. Coupling by the semi-coupling and column component parts inventory. Sales as a result of column buffer and shock-absorbing role, so they have a smooth drive, the noise of small, safe, reliable, easy to maintain and so on. Spindle and the reducer output shaft gear coupling used to connect.
Lubrication of all mechanical systems is a very important aspect. Lubrication system is: in the elevator work, uninterrupted to the main bearings, bearings and browser side by tooth meshing Pressure lubricants, bearings and gears in order to ensure the work can be a good lubrication system with automatic protection systems and the main electrical interlock
Drum through the spindle drive motor. Spindle drive is also the main components. Spindle hoist should be able to work outside the course of the load without the occurrence of excessive residual deformation and elastic deformation, at the same time to ensure that a certain life. Spindle is often the weight of hoisting machine in one of the biggest parts of their size and the torque delivery as well.
Key words: spindle hoist reducer coupling

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