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Telescopic griffe box of edge hob

A telescopic, tool box technology, applied in mining equipment, earth-moving mining, tunnels, etc., can solve the problems of tool box stuck, poor practicability, complex structure, etc.

Active Publication Date: 2017-01-04
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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Problems solved by technology

But both structures have fatal flaws: the first structure can only meet the excavation amount of 50mm (radius direction); although the second structure can meet the excavation amount of 150mm (radius direction), in actual use, the structure is too large. Complicated, often stuck when moving the tool box, so the practicability is poor

Method used

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  • Telescopic griffe box of edge hob
  • Telescopic griffe box of edge hob
  • Telescopic griffe box of edge hob

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] Such as figure 1 As shown, in the actual construction, the tunnel face is made of rocks, so it is unstable, and rocks often fall from high places. If someone works on the tunnel face, there will be a high risk, so For the replacement of the hob and the adjustment of the height of the hob, it is all carried out inside the cutter head, which is called a back-mounted knife.

[0023] The invention patent with the application number 201310689220.5 mainly in...

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Abstract

The invention discloses a telescopic griffe box of an edge hob. The device can realize large-diameter expanding excavation requirements of a TBM cutter head to deal with engineering geology with large buried depths and high rock convergence. The telescopic griffe box structurally comprises the hob, an inner griffe box, an outer griffe box and C-shaped blocks, a bolt hole is designed between the inner griffe box and the outer griffe box, the inner griffe box and the outer griffe box are connected by using third bolts, a wedge block and the C-shaped blocks are mounted in the inner griffe box, and used for fixing a cutter shaft of the hob; the wedge block is connected with a tensioning block through a first bolt, the tensioning block is mounted at the lower part of the outer griffe box, and the C-shaped blocks are connected with the inner griffe box and the outer griffe box through second bolts. According to the application of the invention, the inner griffe box and the outer griffe box are relatively moved, and the C-shaped blocks are combined to increase the height so as to realize the large-diameter expanding excavation of the cutter head; the telescopic griffe box is reliable in structure, high in practicality and capable of meeting the extremely bad working condition of tunnel faces.

Description

technical field [0001] The invention belongs to the field of excavation and excavation equipment in tunnel construction, and in particular relates to a side hob cutter box capable of realizing the requirement of large-diameter expansion and excavation of a TBM cutter head. Background technique [0002] Under special geological conditions, TBM needs to expand the excavation diameter to solve the jammed situation caused by rock convergence and landslide. The traditional cutter head is divided into two ways of expanding excavation: ① by thickening the C-shaped block in the cutter head box to increase the excavation diameter; ② by moving the tool box (removable tool box) The hob is installed on the top to form a new excavation track and increase the excavation diameter. But both structures have fatal flaws: the first structure can only meet the excavation amount of 50mm (radius direction); although the second structure can meet the excavation amount of 150mm (radius direction),...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/08
CPCE21D9/08
Inventor 高翔张世展翟国强杨添任齐志冲
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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