Method for replacing hinged seal of shield tunneling machine
A hinged sealing and shield machine technology, which is applied in earth drilling, mining equipment, tunnels, etc., can solve the problems of cumbersome procedures, large social impact, and high cost
Active Publication Date: 2021-07-06
TIANHE MECHANICAL EQUIP MFG
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Problems solved by technology
[0003] At present, based on the common working method of replacing the hinge seal, after separating the rear platform, assembly machine, and screw machine, the middle front shield is removed, hoisted to the ground to separate the B ring / T ring, and then the hinge ring seal is replaced. , high cost, large social impact, cumbersome process
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[0033] Such as Figure 1~Figure 7 As shown, a method for replacing the hinge seal of the shield machine includes the following steps:
[0034] Step 1: Measure the size of the middle shield 1, front shield 2 to the reaction frame, and meet the preset distance requirements; check whether there is an operating space at the bottom of the ring body 3 after the middle shield 1 and front shield 2 move forward, and remove the hinged seal 4 and the pressure plate 5. If there is insufficient space, consider cutting off the ribs of the starting tire frame to confirm the structural strength;
[0035] Step 2: Make a mark before the pipeline is removed, disconnect the pipeline of the propulsion and hinge system, and use a plug to block the oil cylinder 6 and the pipeline joint;
[0036] Step 3, remove the hinged stroke sensor, install the fixed tooling for the hinged oil cylinder, and fix it inside the B ring 16 to prevent the hinged oil cylinder 12 from toppling after the B ring 16 and T ...
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The invention discloses a method for replacing a hinged seal of a shield tunneling machine. The method comprises the following steps of (1) measuring the sizes from a middle shield to a reaction frame and from a front shield to the reaction frame; (2) dismounting a pipeline; (3) dismantling a hinged stroke sensor and a hinged oil cylinder installation fixing tool; (4) checking whether the pipeline and a platform influence the separation of a B ring and a T ring; (5) fixing the tail of a shield on a track, and welding an anti-rotation stop block and a rotation stopping device on the front shield and the middle shield; (6) moving the three positions through hydraulic jacks; (7) moving the front shield and the middle shield by a preset distance, so that the hinged seal and a pressing plate are separated from the middle shield until the hinged seal and the pressing plate are completely exposed; (8) supplementing the missing and damaged pressing plate, and cleaning the sealing contact face on the middle shield; (9) checking the hinged seal; (10) mounting the hinged seal and the pressing plate; (11) sealing the disconnected position, and performing vulcanization butt joint and inspection; and (12) checking whether the center is aligned with the heaven-earth direction. The method for replacing the hinged seal of the shield tunneling machine is carried out on a starting jig frame, the time cost is low, and the number of replacement procedures is small.
Description
technical field [0001] The invention relates to a method for replacing the hinge seal of a shield machine. Background technique [0002] The shield machine hinge seal is a lip-shaped end face seal installed between the shield and the shield tail carcass in the shield machine. It is usually made of polyurethane material, supplemented by a sealing device installed with arc-shaped pressure plates and high-strength screws. After the connection of the carcass structure is completed, a grease cavity is formed between multiple hinged seals. During the excavation process, the hinged seal cooperates with the sealing grease to continuously fill the grease cavity and is used at the same time. Avoid the leakage of water and soil into the shield machine from the joint device during the tunneling process of the shield machine in straight or curved sections. [0003] At present, based on the common working method of replacing the hinge seal, after separating the rear platform, assembly ma...
Claims
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Patent Timeline
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CPCE21D9/06
Inventor 于洪亮李腾蛟时小群康健陈明江陈义桔李宝龙黄政陆帅彭飞高迎可张金文李腾陈炽杰焦昱
Owner TIANHE MECHANICAL EQUIP MFG