本文将综掘工作面掘进机大角度拐弯开口快速掘进，实现掘进机大角度拐弯时掘

In this paper, the roadheader in the fully mechanized working face is quickly tunneled with a large-angle turning opening to realize the good cooperation between the roadheader and the second transport when the roadheader is turning at a large angle, and a new type of roadheader's second-run belt connecting device is made. The device is simple to operate, shortens the maintenance and replacement time, improves the start-up rate, and reduces the accident rate, not only can meet the requirements of safe production, but also has good economic benefits.

In this paper, the comprehensive excavation work surface digging machine large angle corner opening rapid excavation, to achieve the digging machine when the large angle cornering machine and the good cooperation of the second transport to carry out transformation, the production of a new type of digging machine two-run belt hanging device. The simple operation of the device, shorten the maintenance and replacement time, improve the start-up rate, reduce the accident rate, not only to meet the requirements of safe production, but also has good economic benefits.

In this paper, a new type of belt coupling device for the second transportation of roadheader is made by transforming the roadheader with the second transportation transportation company when the roadheader turns at a large angle. The device is easy to operate, shorten the maintenance and replacement time, improve the startup rate and reduce the accident rate. It can not only meet the requirements of safety production, but also has good economic benefits.