Looseness detecting device for shield cutter head detachable cutter

A technology of shield cutter head and detection device, which is applied in the direction of measuring device, testing of machine/structural components, measuring fluid pressure, etc., can solve the problems of damage to the screw machine in the soil bin, affecting the disassembly and assembly work, and bending of bolts. , to ensure the construction efficiency, prevent the tool from falling off, and reduce the probability of secondary damage.

Pending Publication Date: 2019-02-22
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the fastening bolt of the tool is loose, the continuous unsteady impact and vibration may cause the bolt to bend or even break, which will affect the subsequent disassembly and assembly work; Damaged internal components and screw machine

Method used

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  • Looseness detecting device for shield cutter head detachable cutter
  • Looseness detecting device for shield cutter head detachable cutter
  • Looseness detecting device for shield cutter head detachable cutter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1, the detachable tool loose detection device of the shield cutter head, such as figure 1 As shown, it includes the knife seat 4 and the scraper 1 set on the knife seat 4 through the bolt 2, the oil hole 4-1 leading to the installation surface of the scraper 1 is arranged in the knife seat 4, and the oil hole 4-1 leads to the knife installation surface There is an O-ring seal 3 on the outer periphery of the port. The O-ring 3 can not only ensure the sealing connection between the knife seat 4 and the scraper 1, but also the O-ring is an elastic element. When changing, the seal will not fail, and the precise design can effectively avoid false detection and false alarm.

[0015] Such as image 3 As shown, the other port of the oil hole 4-1 is connected to a pressure detection system, and the pressure monitoring system includes an oil pipe 6, a hydraulic pump 7, and a pressure sensor 8. The other end of the oil hole 4-1 connects with the oil pipe 6 and The hyd...

Embodiment 2

[0017] Embodiment 2, a detachable tool loose detection device for the shield cutter head, such as figure 2 As shown, the scraper 1 in Embodiment 1 can be the hob 5 of the shield machine, and the other structures are the same as in Embodiment 1.

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PUM

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Abstract

The invention discloses a looseness detecting device for shield cutter head detachable cutter, and the problem that the installation fastening state of the detachable cutter cannot be monitored in real time in the prior art is solved. The device comprises a cutter holder and a cutter arranged on the cutter holder by a bolt, an oil hole leading to a cutter mounting surface is arranged in the cutterholder, the periphery of a port of the oil hole leading to the mounting surfaced is provided with a sealing member, and the other end of the oil hole is connected to a pressure detection system. By setting the pressure detection system and a corresponding structure between the cutter holder and the cutter, the gap of the looseness detection of the shield machine cutter is filled, and the real-time monitoring of the tightening state of the cutter can be realized. The cutter can be prevented from falling off, the cutter can be strengthened in time, the construction efficiency is ensured, and the probability of the secondary damage to other parts of the shield machine by the falling cutter is reduced.

Description

technical field [0001] The invention relates to the technical field of shield machine cutterhead detection, in particular to a detachable cutter loose detection device for a shield machine cutterhead. Background technique [0002] The development of underground space is a promising engineering development direction in the future. With the expansion of the underground space development market, shield machines are gradually being used in more complex geological environments. Therefore, the tools of shield machines are also undergoing increasingly difficult tasks. challenge. When the shield machine passes through the broken stratum, due to the characteristics of the stratum, the cutter of the shield machine will bear extremely unstable impact and vibration. As the cutter is subjected to continuous impact, the fastening bolts of the cutter may become loose and cause the cutter to fall off. If the fastening bolt of the tool is loose, the continuous unsteady impact and vibration ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00G01L11/00E21D9/08
CPCE21D9/08G01L11/00G01M13/00
Inventor 任涪伟张家年张超兰磊郑康泰
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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