Screw conveyer and shield tunneling machine

Abstract

The invention discloses a screw conveyer and a shield tunneling machine. The screw conveyer comprises a shield body sleeve, a screw rod and a screw rod, wherein the shield body sleeve is connected with a front shield body of the shield tunneling machine; the outer cylinder is connected with the shield body sleeve; a screw conveyor cylinder; the inner barrel is connected with the spiral conveyor barrel and arranged in the outer barrel and the shield body sleeve, and gaps are formed between the inner barrel and the outer barrel and between the inner barrel and the shield body sleeve; and the elastic sealing piece is arranged between the inner cylinder and the outer cylinder. When the shield tunneling machine turns, the inner barrel extrudes the elastic sealing piece, so that the inner barrel drives the barrel body of the spiral conveyor to float up, down, left and right within a certain range, and the situation that when the shield tunneling machine turns with a small curve radius, the swing amount of the tail of the spiral conveyor is too large, and the shield tunneling machine turns with a small curve radius is avoided. The spiral conveyor can well meet the requirement for small-curve-radius turning of the shield tunneling machine, and the use reliability of the shield tunneling machine is improved. Compared with the prior art that a joint ball bearing is adopted for achieving connection of the spiral conveyor and the shield tunneling machine, the structure is simple, and the machining difficulty and the production cost are reduced.

Description

technical field [0001] The invention relates to the technical field of tunnel construction equipment, and more particularly, to a screw conveyor. In addition, the present invention also relates to a shield machine comprising the above-mentioned screw conveyor. Background technique [0002] In tunnel projects such as urban subways and underground pipelines, shield tunneling machines are usually used for shield construction. The shield machine includes a screw conveyor, and the screw conveyor passes through the shield body of the shield machine and is connected to the back supporting system of the shield machine, which is used to convey the ballast soil excavated by the cutter head. [0003] With the increase in the construction demand of small curve tunnels, higher requirements are put forward for the steering capacity of the shield machine. When turning with a small curve radius, the front and rear sections of the shield machine will move relative to each other. . When the...

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Problems solved by technology

[0004] At present, the hinge device commonly used in screw conveyors is joint ball bearings. However, joint ball bearings have the problems of difficult processing and high cost.

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