Double-cantilever hard rock coal roadway heading and anchoring device

Abstract

The invention discloses a double-cantilever hard rock coal roadway heading and anchoring device which comprises a coal transporting device, a hydraulic system, an electrical control system, a dust removal system, a power system, a headstock, a cantilever cutting device, a crawler travel unit and a supporting platform, wherein the cantilever cutting device is connected to the front end of the headstock, the crawler travel unit is arranged below the headstock, and the supporting platform is hinged with the rear end of the headstock; the upper end of the headstock is provided with a temporary supporting device; the supporting platform is provided with a roof jumbolter and a side-wall jumbolter; and a mesh transporting car is also arranged on the supporting platform. In the double-cantilever hard rock coal roadway heading and anchoring device disclosed by the invention, a double-cantilever and double-cutting-head design is adopted, and a heading system and an anchoring system are organically combined together to carry out operations, thereby greatly improving the heading efficiency. The temporary supporting device is provided with a telescopic temporary support plate and a finger-shaped shield, so that the unsupported roof distance in a heading process is greatly shortened, the safe operation coefficient of the operating personnel is improved, and the safe production is ensured.

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...

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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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