A monitoring device for monitoring the retreat of the shield hob tool holder
A technology of monitoring device and tool holder, applied in the direction of measuring device, using electrical device, testing of machine/structural components, etc. Efficiency and safety, accurate monitoring results, and easy installation
Active Publication Date: 2021-04-06
CHINA RAILWAY TUNNEL GROUP CO LTD +2
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Problems solved by technology
[0003] In order to overcome the abnormal external load and the huge impact force in the prior art, the present invention makes the hob and the hob tool holder retreat to the inside of the cutter barrel, making it impossible to break the rock normally, which further causes the cutter head to be worn and damaged, resulting in greater damage. The loss of the hob is judged by the pressure leakage of the hydraulic pipeline, but the reliability and accuracy are not high, and repeated welding will damage the inner wall of the knife barrel to a certain extent, which will adversely affect the subsequent construction. A monitoring shield hob is proposed. Monitoring device for knife holder retreat
Method used
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Embodiment Construction
[0026] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:
[0027] Such as figure 1 The illustrated embodiment is a monitoring device for monitoring the retreat of the shield hob tool holder, including a tool holder 22, a tool holder bolt 8 arranged on the tool holder, and a knife cylinder 23 in contact with the knife holder, which is arranged on the knife holder The inner knife barrel bolt 16 and the end cover 1 located on the knife holder bolt; the end cover and the knife holder bolt are connected by threads, and the knife holder bolt contacts the knife holder bolt.
[0028] Such as figure 2 As shown, the end cover is cylindrical with an open lower end, and a circular through hole is provided on the upper end surface of the end cover, and a rubber tube 3 matching the circular through hole is provided on the circular through hole, and a There is a first screw thread 2; a first wire 4 and an optical fiber ...
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The invention discloses a monitoring device for monitoring the retreat of a shield hob cutter holder, which comprises a cutter holder, a cutter holder bolt arranged on the cutter holder, a cutter cylinder in contact with the cutter holder, and a cutter cylinder bolt arranged in the cutter holder and an end cover arranged on the knife holder bolt; the end cover and the knife holder bolt are threadedly connected, and the knife holder bolt is in contact with the knife barrel bolt. The present invention has the following beneficial effects: the present invention has the characteristics of simple principle, convenient installation, reusability, accuracy and reliability, etc. By using the present invention, the staff can grasp the installation state of the hob in the cutter cylinder in real time, and accurately judge the hob cutter Whether the frame backs up during the excavation process, so that corresponding measures can be taken in time to ensure the safety and efficiency of the excavation construction.
Description
technical field [0001] The invention relates to the technical field of tunnel excavation engineering equipment detection, in particular to a monitoring device for monitoring the retreat of a shield hob tool holder. Background technique [0002] During shield construction, the hob is the most commonly used excavation tool, and its working condition directly affects the rock-breaking efficiency of the entire cutter head. Due to the unpredictability of geological conditions, the hob is often subjected to uncontrollable abnormal external loads and huge impact forces, resulting in loosening and breaking of the fixing bolts of the hob tool holder, and the hob and hob tool holder retreat into the inside of the cutter cylinder. It is impossible to carry out normal rock breaking, and even further cause the wear and damage of the cutterhead, resulting in greater losses. Therefore, it is necessary to monitor the installation state of the hob tool holder in real time. At present, ther...
Claims
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IPC IPC(8): G01B7/02G01M99/00
CPCG01B7/02G01M99/00
Inventor 李凤远王发民张兵孙振川张良辉王超峰牛紫龙陈桥王凯高攀王延辉李云涛汪朋黄威然袁大军任颖莹
Owner CHINA RAILWAY TUNNEL GROUP CO LTD