Double-cantilever hard rock coal roadway heading and anchoring device

Abstract

A double-cantilever bolting equipment for hard rock coal roadway, including a coal transport device, a hydraulic system, an electrical control system, a dust removal system, a power system, a head frame, and a cantilever cutting device connected to the front end of the head frame. The crawler walking device and the support platform hinged at the rear end of the head frame are provided with a temporary support device at the upper end of the head frame, and a roof bolt rig and a side wall bolt rig are arranged on the support platform. There is also a mesh transport trolley on the platform. The double-cantilever bolt-digging equipment for hard rock coal roadway of the present invention not only adopts the design of double-cantilever and double-cutting heads, but also organically combines the tunneling system and the anchoring system for operation, which greatly improves the tunneling efficiency. The temporary support has retractable temporary support plates and finger shields, which greatly shorten the empty head distance during the excavation process, improve the safety factor of operators, and ensure safe production.

Description

technical field [0001] The invention relates to a driving equipment, in particular to a double-cantilever bolt-digging equipment for hard rock coal roadway. Background technique [0002] Most of the current coal mine roadway excavation equipment and anchoring equipment are operated independently. Even if there is a certain degree of combination, due to the inevitable contradiction between the space position requirements between the excavation and anchoring, it is impossible to maximize their respective functions. The best performance, its disadvantages are: [0003] 1. After a certain progress in the tunneling, the roadheader must withdraw and let the bolter enter for anchoring work. After the anchoring work is completed, the roadheader can enter the next round of tunneling, or the roadheader must stop after tunneling for a certain distance , Waiting for the anchoring operation to be completed before continuing to excavate forward, this operation method has seriously affect...

AI Technical Summary

Problems solved by technology

[0002]Most of the current coal mine roadway driving equipment and anchoring equipment are operated independently and separately. Even if there is a certain degree of combination, due to the space position requirements between The inevitable contradictions above, and can not maximize their respective best performance, the disadvantages are:

[0003]1. After a certain progress in tunneling, the roadheader must exit and allow the bolter to enter for anchoring work. After the anchoring work is completed, the roadheader can enter the next One round of excavation, or the excavation machine must stop after excavating for a certain distance, and then continue to excavate until the anchoring work is completed. This operation method seriously affects the excavation efficiency

[0004]2. The roadheader generally digs a body length and exits before allowing the bolter to enter for anchoring operations, resulting in longer empty head distance, especially in geological conditions In the worst case, it increases the danger of the workers, which is not conducive to safe production

[0005]3. Most of the current coal mine tunneling equipment is single-cantilever design, and the tunneling efficiency is relatively low

[0006]4. The effect of ventilation and dust reduction is not satisfactory, and the amount of dust is large, which is not conducive to the health of workers

[0007]5. The operation method of the rock bolter is not flexible enough, resulting in longer anchoring time and lower anchoring efficiency

[0008]6. The operators do not have certain protective measures during the operation, which poses a relatively large safety hazard

[0009]7. The transportation and lifting of the mesh mostly rely on manpower, and the labor intensity of the operators is relatively high

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