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  • Customized ebz tunneling coal mine drilling rig star wheel motor for roadheader

  • Customized ebz tunneling coal mine drilling rig star wheel motor for roadheader

  • Customized ebz tunneling coal mine drilling rig star wheel motor for roadheader

Customized ebz tunneling coal mine drilling rig star wheel motor for roadheader

Customized ebz tunneling coal mine drilling rig star wheel motor for roadheader


The utility model relates to a hydraulic device which USES the driving oil source as the power oil, 

USES hydraulic control components such as the hydraulic control valve, and controls the star wheel movement of the driving machine

 and the oil filling of the walking motor.


The hydraulic device is provided with a sequence valve, relief valve, star rotation valve, oil filling reversing valve, one-way valve, 

shuttle valve installed on the valve body;The star wheel is connected to the two oil outlet ends of the star rotation valve in the device, 

and the traveling motor is connected to the two oil outlet ends of the traveling directional valve.


When the star wheel is running, the hydraulic control reversing valve is controlled, the cut-off system feeds oil to the travelling motor, 

and the roadheader moves slowly.When the star wheel is not running, the hydraulic oil is fed to the travelling motor through the 

sequence valve, the hydraulic control one-way valve and the one-way valve, so as to realize the rapid progress of the roadheader.

star wheel 1.jpgstar wheel 1.jpgstar wheel 1.jpg

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