Rapid rectangular full-face tunnel boring machine for mining

Abstract

The invention relates to a rapid rectangular full-face tunnel boring machine for mining. The rapid rectangular full-face tunnel boring machine comprises a rectangular tunnel boring machine head, a support propelling mechanism, a horizontal supporting mechanism, a main guide beam, a scraper conveyer, a saddle turning mechanism, an anchor rod advance supporting unit, an electrical control system, a hydraulic pressure system, a measurement guiding system, a ventilating system, a cooling system, a dedusting system and the like; the rapid rectangular full-face tunnel boring machine for mining is in a structure that a large cutter head is matched with four small combined cutter heads, so as to achieve the purpose of achieving rectangular full-face excavated section; the rapid rectangular full-face tunnel boring machine is in a split structure wholly and can achieve parallel operations of tunneling and anchor rod supporting, therefore, the anchor rod is not a restraining factor influencing the tunneling operation; the rectangular tunnel boring machine head and a support platform are separated into two sections, and a main beam and a saddle are adopted for turning, so that the possibility of small turning radius can be achieved; the support platform vibrates slightly before tunneling operation, therefore, the stability of the whole rapid rectangular full-face tunnel boring machine system is improved favorably; and the specific pressure of a roof and a floor is low and the anchor rod advance temporary support is adopted, so that a situation that the roof and the floor are difficult to tunnel can be solved.

Description

technical field [0001] The invention belongs to the technical field of tunnel roadway construction, and in particular relates to designing a structure in which one large cutting cutter head is matched with four composite small cutting cutter heads, so as to achieve the purpose of a full-section rectangular full-section excavation section for a mine-used full-section rectangular rapid roadheader. Background technique [0002] At present, my country has become the world's largest coal producer and consumer. Due to the constraints of the energy structure and the needs of the rapid development of the national economy, the demand for coal will further increase for a considerable period of time in the future. In other words, my country's coal production still needs to increase. However, in the three links of coal mining, excavation and transportation that affect my country's coal production, the efficiency of coal mining and transportation has reached the world-class level, but th...

AI Technical Summary

Problems solved by technology

Due to the congenital structural deficiencies of these types of excavation equipment: all are equipped with small-section cutting heads, which cannot complete the full section at one time; excavation and bolt support cannot work at the same time; ; During the excavation process, a large amount of floating coal will be produced, which needs to be cleaned up in time; etc.

[0004] Aiming at the problems existing in the existing excavation equipment, consider developing a new equipment to ensure a relatively good roadway quality. Under the condition of one-time roadway formation, excavation and support operations at the same time, it completely solves the existing problems of slow excavation speed, poor roadway quality, and the need for staff many questions

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