Low seam mining machinery Motor torque axle
Technical field:
Low seam mining machinery Motor torque axle is a kind of transmission shaft, is particularly suitable for the Motor torque axle that low seam mining machinery motor overload protection back, colliery axis body is changed.
Background technique:
At the coal winning machine motor of girdle work, inevitably to run into iron sulfide concretion rock texture at present; In case run into this kind rock nucleome, the coal winning machine motor may transship, vexed car, even damages motor and cause a whole set of coal mining device paralysis, so not only reduce the working life of motor, also make its cisco unity malfunction, more cause lengthening engineering time, have a strong impact on the colliery economic benefit.
Summary of the invention:
The utility model low seam mining machinery Motor torque axle machine goal of the invention is: manufacture and design a kind of torque axis unlike the prior art and be used for mining motor, reach in the safety in production scope, only damage twisted spindle, save the motor main body from damage and change new axle at the scene fast.
The utility model low seam mining machinery Motor torque axle is achieved in that and is shaped on pull-off screw, compensating groove, motor fit keyway, main frame fit keyway and ladder cavity on electric machine main shaft; Be shaped on ladder cavity at motor fit keyway axis central part, carry over the pull-off screw that the axle center is shaped on certain size, make compensating groove at electric machine main shaft outer surface, pull-off screw front end section along ladder cavity (6); Make motor fit keyway and main frame fit keyway at the electric machine main shaft two end part; The compensating groove geometrical shape is " ∨ " or " ∪ "; Motor fit keyway and main frame fit keyway are spline or flat key.
The basic structure of coal winning machine torque axis is a hollow external key axle, in a side of axle the compensating groove of U type or V-structure is arranged, to produce notch effect; Torque axis passes through external key, be connected with motor with main frame respectively, when motor seriously transships, torque axis ruptures at the compensating groove place, the off-axis of compensating groove latter half part can spur the clutch base assembly and take out of, and the off-axis of front half part just can be pulled out after the screw rod that matches of tapped hole that pull off axle is tightened with being used to take off; The coal winning machine motor is designed to the torque axis form at the clutch place, it not only can be between motor and machine driven system transmitted power, also play a part overload protection, at the tapped hole of compensating groove place design, solve with a supporting screw rod and to get a difficult problem.
The beneficial effect of the utility model low seam mining machinery Motor torque axle: torque axis makes motor and coal mining unit under the situation of not leaving working surface behind the overload protection of finishing main frame, finishes more changing jobs of torque axis, shortens engineering time; Improve the colliery economic benefit.
Description of drawings:
Accompanying drawing is the utility model low seam mining machinery Motor torque axle principle schematic
Among the figure: electric machine main shaft 5, pull-off screw 1, compensating groove 2, motor fit keyway 3, main frame fit keyway 4, ladder cavity 6
Embodiment:
The utility model low seam mining machinery motor is shaped on pull-off screw 1, compensating groove 2, motor fit keyway 3, main frame fit keyway 4 and ladder cavity 6 on electric machine main shaft 5; Be shaped on ladder cavity 6 at motor fit keyway 3 axis central parts, carry over the pull-off screw 1 that the axle center is shaped on certain size, make compensating groove 2 at electric machine main shaft 5 outer surfaces, pull-off screw 1 front end section along ladder cavity (6); Make motor fit keyway 3 and main frame fit keyway 4 at electric machine main shaft 5 two end part; Torque axis is " ∨ " or " ∪ " by compensating groove 2 geometrical shapies; Motor fit keyway 3 and main frame fit keyway 4 are spline or flat key.