Quick dismounting device for spray nozzle in roller of coal mining machine

The utility model discloses a coal mining machine roller inner spray nozzle quick dismounting device, including connecting sleeve, cross bar, clamping arm, bi-directional screw, slide bar and pendulum bob, connecting sleeve outside symmetry fixed connection cross bar, both cross bar outside sliding connection clamping arm, the bi-directional screw threaded connection between the two clamping arm, the pendulum bob is connected with the slide bar, the two-way screw threaded connection between the two clamping arm, the two-way screw threaded connection between the slide bar and the bi-directional screw threaded connection between the slide bar and the bi-directional screw threaded connection between the slide bar and the bi-directional screw. The two-way screw rod is matched with the clamping arm for use, nozzles of different specifications can be clamped, the application range of the device is widened, the pendulum bob slides on the sliding rod to impact the upper baffle, the whole device and the nozzles can be