Support-type comprehensive tunneler

Abstract

The invention relates to a support-type comprehensive tunneler which comprises a non-tracked tunneler, a tunneler chassis, a left hydraulic support, a right hydraulic support, a drilling rig and scraper conveyors, wherein the tunneler is arranged on the tunneler chassis, and two advancing jacks are arranged on the tunneler chassis; the other ends of the two advancing jacks are respectively connected with the left hydraulic support and the right hydraulic support, and the two sides of the tunneler chassis are respectively provided with a lateral pushing oil cylinder; forestopes of the left and right hydraulic supports are respectively provided with a group of metal mesh storages, and the tail of a main top beam of the support is hung with the drilling rig; the tail of a first scraper conveyor is arranged on a spade plate of the tunneler, and the head of the first scraper conveyor and the tail of a second scraper conveyor are overlapped; and the head of the second scraper conveyor and the tail of a belt loader are overlapped, and sleds are arranged at the back of the two hydraulic supports. The tunneler has the advantage that the drilling support and the coal cutting of the tunneler are simultaneously carried out, and also has the automatic lapping function, thus reducing labor intensity and increasing the coal mining efficiency by over 4 times.

Description

technical field [0001] The invention relates to a roadheader, in particular to a support type comprehensive roadheader which integrates the functions of excavation, transport, support, laying and anchoring. Background technique [0002] At present, there are two methods of roadway excavation in the coal industry at home and abroad: one is to excavate by blasting method; the other is to use cantilever type roadheader to excavate. In the 1980s, my country began to introduce cantilever roadheaders from the British company Joy and Dosco. At present, there are many domestic manufacturers producing cantilever roadheaders. Although the efficiency of roadway excavation using cantilever roadheader has been significantly improved compared with blasting method, its shortcomings are still outstanding, mainly in the following aspects: [0003] 1. Since the newly exposed roof needs to be supported in time after the coal body is cut by the roadheader, the roadheader must be withdrawn to t...

AI Technical Summary

Problems solved by technology

Drilling and support workers carry the bolter and support materials from the back of the roadheader to the working face to perform work such as bolting, anchoring, manual hanging of metal mesh, and finishing of support. The labor intensity is high, the working hours are long, and the production efficiency is low ( Generally, the time for supporting the roof is 2-3 times of the coal cutting time), and the supporting roof and the roadheader for coal cutting cannot realize parallel operation

[0004] 2. Since the support workers work without support (especially when installing anchor plates and laying metal mesh), casualties caused by roof caving and zero-skin collapse occur from time to time

Although individual manufacturers have produced roadheaders with advanced support devices, the problems of low production efficiency, high labor intensity, and insecure safety have not been effectively resolved

[0005] 3. It takes a long time for the existing roadheader to turn the roadway, usually 7-9 days

[0006] 4. Existing roadheaders do not have the function of automatically laying roof nets

[0007] 5. When the existing roadheader excavates the uphill roadway, when the inclination angle of the coal seam is greater than 8 degrees, due to the presence of floating coal under the track of the roadheader, the floor of the coal seam is smooth, resulting in frequent slippage of the roadheader

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