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Cutting mechanism for multi-arm hob-type continuous tunneling machine

A roadheader and hob-type technology, which is applied to the cutting mechanism field of multi-arm hob-type continuous roadheaders, can solve the problems of inapplicability to hard rock roadways and low rock-breaking efficiency, so as to improve cutting efficiency and strengthen the breaking efficiency. Rock effect, the effect of increasing blockiness

Active Publication Date: 2015-07-08
TAIYUAN INST OF CHINA COAL TECH & ENG GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Purpose of the present invention: In order to solve the problem that the cutting mechanism of the existing roadheader cannot be applied to the hard rock roadway and the rock breaking efficiency is low

Method used

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  • Cutting mechanism for multi-arm hob-type continuous tunneling machine

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Embodiment Construction

[0014] like figure 1 As shown, the cutting mechanism for the multi-arm hob type continuous roadheader is characterized in that it includes a slewing bearing 5, three outer rotating arms, an inner rotating arm 4, a disc hob 6 and a swing cylinder. The slewing bearing 5 includes an inner ring and an outer ring, the outer ring is fixed on the frame of the roadheader, the inner ring is installed and connected with the motor output shaft of the roadheader, and each outer rotating arm and inner rotating arm 4 are hinged on the inner ring through pin shafts , the hinge points of the three outer rotating arms and the inner ring are arranged in the circumferential direction of the inner ring and the distance from the hinge points of the three outer rotating arms and the inner ring to the center of rotation of the inner ring is equal, wherein the first outer rotating arm 1 and the second The two outer rotating arms 3 are symmetrically arranged at an angle of 180 degrees, the third oute...

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Abstract

The invention belongs to the technical field of cutting mechanism of tunneling machine, particularly provides a cutting mechanism for a multi-arm hob-type continuous tunneling machine, and solves the problems of an existing cutting mechanism of a continuous tunneling machine, such as unsuitability for hard rock tunnel and low rock breaking efficiency. The cutting mechanism comprises a slewing bearing, three outer rotation arms, an inner rotation arm, a disc hob and a swinging cylinder. The slewing bearing comprises an inner ring and an outer ring; the outer ring is fixed on a frame of the tunneling machine; the inner ring is connected to a motor output shaft of the tunneling machine; and outer rotation arms and the inner rotation arm are hinged to the inner ring through pins. The invention has beneficial effects of solving problems of weak rock breaking effect and low production efficiency of a longitudinal tunneling machine, reducing dust generation, improving cutting efficiency, and realizing forming of different section contours.

Description

technical field [0001] The invention belongs to the technical field of cutting mechanisms of roadheaders, and in particular relates to a cutting mechanism for multi-arm hob type continuous roadheaders. Background technique [0002] The cutting mechanism of the existing roadheader is mainly the vertical axis type and the horizontal axis type. The cutting tool used on the cutting mechanism is a pick-shaped pick. The working principle of the pick-shaped pick is like a pick tip wedge like a rock mass. Compressive strength, because the compressive strength of rock is much greater than its tensile strength, so the current cutting method results in high specific energy consumption, less applicability to hard rock roadway cutting, and low rock breaking efficiency. Contents of the invention [0003] The purpose of the present invention is to solve the problem that the cutting mechanism of the existing roadheader cannot be applied to the hard rock roadway and the rock breaking e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C25/06
Inventor 马昭王政宏郝建生王学成王传武朱殿烨贾少山吴晋军秦国强权钰云荔军
Owner TAIYUAN INST OF CHINA COAL TECH & ENG GROUP
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