Novel tool apron for preventing eccentric wear of hobbing cutter

A hob, a new type of technology, applied in mining equipment, earth-moving, tunnels, etc., can solve the problems of eccentric grinding and chipping, easy wear of hob, reduce replacement and maintenance times, improve construction efficiency, cost reduction effect
CN110374622AActive Publication Date: 2019-10-25STATE KEY LAB OF SHIELD & TUNNELING TECH +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
STATE KEY LAB OF SHIELD & TUNNELING TECH
Publication Date
2019-10-25

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Abstract

The invention discloses a novel tool apron for preventing eccentric wear of a hobbing cutter. The novel tool apron comprises bases symmetrically arranged onthe two sides of the hobbing cutter, U-shaped mounting grooves opened upwards are formed in the bases, sliding guide slots are formed in the bottoms of the mounting grooves in the direction vertical to the axis direction of the hobbing cutter,fixed blocks sliding along with the sliding guide slots are mounted on the sliding guide slots, joint bearings connected witha cutter shaft of the hobbing cutter are mounted on the fixed blocks, and elastic elements are separately arranged between the mounting grooves and the fixed blocks. By adjusting the hobbing cutter and the axis angle of the hobbing cutter, eccentric wear and abrasion of thehobbing cutter are avoided, the problem that the conventional hobbing cutter is easy to wear, wear eccentrically and flake is solved, the service life of the hobbing cutter is prolonged, the replacingand maintenance numbers of times of the hobbing cutter are reduced, and the cost is saved.
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Description

technical field

[0001] The invention relates to the technical field of shield machine / TBM design and manufacture, in particular to a novel cutter seat for preventing partial wear of hob cutters. Background technique

[0002] In recent years, shield / TBM has been more and more used in tunnel construction. Shield / TBM has become the preferred equipment for tunnel construction due to its faster construction progress and safe excavation mode. Among them, whether the shield / TBM cutter head hob design is reasonable or not affects the speed of the construction project. However, due to the increasingly complex environment for the shield machine / TBM, the wear of the hob is becoming more and more complicated, and the wear of the hob has become a major factor. The key factors that control the driving efficiency and affect the construction cost.

[0003] In the excavation of hard rock strata, the hob wear consumption cost has accounted for 20%~35% of the construction equipment cost, and ...

Claims

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