Safe passage applicable between middle shield and equipment bridge, control device and control method for safe passage

Abstract

The invention relates to a safe passage applicable between a middle shield and an equipment bridge, a first fixed platform is arranged on the inner side end face of the middle shield, personnel can goto inner bins of the middle shield and an anterior shield through the first fixed platform; a second fixed platform is arranged on one side opposite to the first fixed platform and is located on theequipment bridge; and an assembling lifting mechanism is arranged between the middle shield and the equipment bridge, the first fixed platform is provided with a telescopic platform capable of being controlled by a control device, and mutual docking of the first fixed platform and the second fixed platform is realized by virtue of the telescopic platform. The control device ensures that the telescopic platform is stretched in place, when the telescopic platform is stretched, the assembling lifting mechanism is ensured to be in a shutdown state, by adoption of the abovementioned scheme, the telescopic platform can judge by itself that work can be started under which working condition, the telescopic platform is ensured not to interfere with the assembling lifting mechanism, the safety of the equipment is improved, and the interior maintenance and cargo handling of a shield machine are facilitated.

Description

technical field [0001] The invention relates to a shield mechanism, in particular to a safe passage between a central shield and an equipment bridge, a control device and a corresponding control method. Background technique [0002] During the tunneling process of the shield machine, the assembly and lifting mechanism needs to be used as a rotating unit to assemble the segments. Therefore, there is no fixed passage between the central shield and the equipment bridge. The staff conduct maintenance inspections when leading to the central shield When working, it is necessary to step on the steel structure of the assembled lifting mechanism or push the oil cylinder through the bottom, which often causes a lot of inconvenience and risks. When encountering the situation where heavy objects need to be transported but the assembly machine cannot be used, there is no transportation channel, and the transportation process is very difficult. Therefore, when transporting heavy objects, ...

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Problems solved by technology

[0002] During the tunneling process of the shield machine, the assembly and lifting mechanism needs to be used as a rotating unit to assemble the segments. Therefore, there is no fixed passage between the central shield and the equipment bridge. The staff conduct maintenance inspections when leading to the central shield When working, it is necessary to step on the steel structure of the assembled lifting mechanism or push the oil cylinder through the bottom, which often causes a lot of inconvenience and risks. When encountering the situation where heavy objects need to be transported but the assembly machine cannot be used, there is no transportation channel, and the transportation process is very difficult. Therefore, when transporting heavy objects, the past construction experience is that the on-site personnel will temporarily weld and fix the platform on the side of the assembled lifting mechanism to facilitate the transportation of heavy objects. After the transportation is completed, the fixed platform Disassembly, using this scheme, firstly, repeated disassembly and assembly will increase the workload of workers; secondly, in the absence of effective construction management, accidents are prone to occur, such as when there are staff on the fixed platform carrying goods, At this time, the operator mistakenly thinks that there is no staff in the shield machine, and starts the assembled lifting mechanism. The assembled lifting mechanism will interfere with the fixed platform when rotating, causing personnel to fall, resulting in a safety accident. Therefore, in the shield machine The risk of installing a fixed platform between the shield and the equipment bridge is relatively high

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