Fishtail knife assembly for shield machine
A technology of fishtail knife and shield machine, which is applied in the field of shield machine, can solve the problems of no reinforcement, insufficient strength, damage and fracture, etc., and achieve the effect of eliminating the risk of damage and fracture and improving the connection strength
Active Publication Date: 2020-03-20
TIANHE MECHANICAL EQUIP MFG
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Problems solved by technology
[0002] A fishtail knife assembly for a shield machine usually includes a central flange and a fishtail knife fixedly mounted on the central flange. The first and second cutter bodies are arranged crosswise, but there are no reinforcements at both ends of the first cutter body in the length direction, resulting in insufficient strength of these two ends, and there is a risk of damage and fracture
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[0021] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.
[0022] Such as figure 1 As shown, the fishtail knife assembly for the shield machine includes a central flange 1, a grouting nozzle installed in the middle of the central flange 1, a lifting lug 13 installed on the central flange, and a lower end surface fixedly installed on the central flange. The fishtail knife on Lan 1.
[0023] The direction parallel to the lower end surface of the fishtail knife and extending along the longest side of the lower end surface is the length direction of the fishtail knife, and the two ends in the length direction are the left and right ends of the fishtail knife, and the thickness The two end faces in the direction are the front and rear end faces, and the front and rear end faces of the fishtail knife are respectively provided with enhanced versions 2 for improving the strength, and the left and right ends o...
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The invention discloses a fishtail tool assembly for a shield tunneling machine. The fishtail tool assembly comprises a central flange, a grouting mud nozzle and a fishtail tool, wherein the grouting mud nozzle is installed in the middle of the central flange, and the lower end face of the fishtail tool is fixedly installed on the central flange. The direction which is parallel to the lower end face of the fishtail tool and extends along the longest edge of the lower end face is the length direction of the fishtail tool. The two ends in the length direction are the left end and the right end of the fishtail tool. The left end and the right end of the fishtail tool are provided with wing plates used for connecting the fishtail tool with spokes on a cutterhead of the shield tunneling machine. According to the fishtail tool assembly for the shield tunneling machine, the wing plates are additionally arranged at the left end and the right end of the fishtail tool, the connecting strength of the left end and the right end of the fishtail tool is greatly improved, and the risk that the left end and the right end of the fishtail tool are damaged and fractured is eliminated.
Description
technical field [0001] The invention relates to a shield machine, in particular to a fishtail knife assembly for a shield machine. Background technique [0002] A fishtail knife assembly for a shield machine usually includes a central flange and a fishtail knife fixedly mounted on the central flange. The first and second cutter bodies are arranged crosswise, but the two ends in the length direction of the first cutter body do not have reinforcements, resulting in insufficient strength of the two ends, and there is a risk of damage and fracture. Contents of the invention [0003] The object of the present invention is to provide a fishtail knife assembly for a shield machine with higher strength at both ends. [0004] In order to achieve the above object, the technical solution adopted by the present invention is: a fishtail knife assembly for a shield machine, which includes a central flange, a grouting nozzle installed in the middle of the central flange, and a lower end...
Claims
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IPC IPC(8): E21D9/08
CPCE21D9/08
Inventor 任俊杰杨辉周骏
Owner TIANHE MECHANICAL EQUIP MFG