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Spherical support girder turning mechanism for open-type hard-rock boring machines

A technology for hard rock roadheaders and main beams, which can be used in mining equipment, earthwork drilling, tunnels, etc., and can solve problems such as inflexible steering and complex structures

Inactive Publication Date: 2012-09-26
NORTHERN HEAVY IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure is complex and the steering is not flexible, which can only be adjusted when changing steps; the main beam support area is relatively small, but it can be adjusted during the excavation process, with simple structure, flexible operation and strong controllability

Method used

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  • Spherical support girder turning mechanism for open-type hard-rock boring machines
  • Spherical support girder turning mechanism for open-type hard-rock boring machines
  • Spherical support girder turning mechanism for open-type hard-rock boring machines

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Embodiment Construction

[0010] With reference to the accompanying drawings, an open-type hard rock roadheader spherically supported main beam steering mechanism is composed of a cutter head 1, a shield 2, a propulsion cylinder 3, a main beam 4, a saddle frame 5, a shoe 6, a torque cylinder 7, and a hinge joint The ball gland 8, the center pin 9, the hinge ball 10, the center block 11, and the horizontal support cylinder 12 are composed of the cutter head 1, the shield 2 and the main beam 4 of the full-section hard rock tunnel boring machine. The beam 4 and the saddle frame 5 are assembled together through a box-shaped structure with guide slides. 45° guide slideway, the saddle frame 5 and the horizontal support cylinder 12 are connected by 4 torque cylinders 7 on both sides, and a hinge ball 10 is provided at the position of the center block 11, and the hinge ball 10 is positioned by the hinge ball gland 8 Inside the center block 11, the center pin shaft 9 is loaded into the hinge ball 10 and the two...

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Abstract

The invention discloses a spherical support girder turning mechanism for open-type hard-rock boring machines, which is applied to the field of full-face hard-rock tunnel boring machines. The spherical support girder turning mechanism comprises a cutterhead, a shield, a thrust cylinder, a girder, torque cylinders, an articulated ball gland and horizontal support cylinders and the like, wherein the cutterhead, the shield and the girder of the full-face hard-rock tunnel boring machine are connected into a whole through bolts, the girder and a saddle are assembled together through a box structure with a guide slideway, the two ends of the thrust cylinder are respectively articulated on the girder and a bracing shoe, the four corners of the girder and the saddle are respectively provided with a guide slideway, the saddle is connected with the horizontal support cylinders through the torque cylinders on both sides of the saddle, a central pin shaft is arranged in an articulated ball, the two ends of the central pin shaft are fixed on upper and lower plates of the saddle, and a central block is fastened with the two horizontal support cylinders through a bolt. The most striking design characteristic of the invention focuses on the central pin shaft and the articulated ball; and the spherical support girder turning mechanism disclosed by the invention is easy to operate, safe and reliable, good in vibration-resistant effect and uneasy to damage.

Description

technical field [0001] The invention relates to an open-type hard rock tunnel boring machine spherical supporting main beam direction adjustment mechanism in the field of full-section tunnel hard rock boring machines. Background technique [0002] At present, compared with the traditional drilling and blasting method, the hard rock tunnel boring machine construction method of full-section tunnel has outstanding advantages such as rapidity, high quality, safety, economy, and environmental protection. It has become the primary construction choice in railway tunnels, water diversion projects, and national defense projects. . In the design of hard rock tunnel boring machines for full-section tunnels, the Kai type and the main beam type have been used as the two major types for a long time. Each mechanism has its own characteristics. The Kai-style support area is large, the grounding specific pressure is small, and it has strong adaptability to areas with poor geological conditi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/087
Inventor 邓立营李清文高伟贤周俊秦立学
Owner NORTHERN HEAVY IND GRP CO LTD
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