Patent No: 201220679409.7

 

We have applied for National Invention Patent for the 2 linkage chock shield roof support. This product is a new type of support equipment between mechanized mining bracket and suspended support. It inherits the former’s advantages of high safely, good adaptation, and ability to move by itself and solves the latter’s problem of poor stability. It has the merits of strong adaptability, small size, light weight, easy operation, as well as convenient disassembly, transport, and assembly.

If the top beam moves forward or backward during descent, the upright will be driven to tilt. At this time, open the attitude control jack. Adjust the length of the jack and the angle of the connecting rod to achieve vertical lifting of upright, i.e., vertical movement of top beam, marking the running the running track of the front end of the bracket nearly lineal.

The 2 linkage chock shield roof support solves the 4 linkage support’s problem that the forward friction within some height range will cause the front top beam to bream. Unlike the four linkage type which has compact structure, this 2 linkage type produce is easier to install. It also solves the singe pendulum mechanism bracket’s problem that the running track is semicircular and the movement range is too large.