Spiral conveyor with blade wear-resistant layer capable of being compensated

Abstract

The invention discloses a spiral conveyor with a blade wear-resistant layer capable of being compensated. The spiral conveyor comprises a cylinder body, a screw rod and a driving device, wherein the screw rod is arranged in the cylinder body in a penetrating mode, the driving device is fixed to the outer end of the cylinder body, and spiral blades are fixed on the outer side surface of the screw rod; a plurality of limiting screws are sequentially fixed on the portions, located inside the cylinder body, of the spiral blades and close to the outer end of the cylinder body, each limiting screw is provided with a blade wear-resistant block, each blade wear-resistant block is provided with a movable limiting groove, the inner end of each blade wear-resisting block sleeves outside the corresponding limiting screw of the spiral blade, the limiting screws are arranged in the movable limiting grooves, and a thrust spring is arranged between each blade wear-resistant block and the outer end ofthe corresponding spiral blade. According to the spiral conveyor, when the wear-resistant blocks are abraded, the wear-resistant blocks can automatically exit through the thrust springs, so that the abrasion loss is compensated, and not only is the service life of the spiral blade greatly prolonged and the stable working efficiency can be kept, but also the abrasion-resistant blocks can be directly replaced on the construction site when the wear-resistant blocks are damaged.

Description

technical field [0001] The invention belongs to the technical field of shield machine equipment, and in particular relates to a screw conveyor, in particular to a screw conveyor with a compensable blade wear-resistant layer. Background technique [0002] The earth pressure balance shield machine is equipped with a screw conveyor, referred to as the screw conveyor. The function of the screw conveyor is to transport the muck excavated by the cutter head from the soil bin to the shield body, and then transport it to the ground through the supporting transportation system. The ability of the screw machine to transport the muck will directly affect the excavation efficiency of the shield machine. The blade on the screw rod of the screw machine is an important rotating part of the screw machine, and it is also a part that is easy to wear. The wear of the blade often reduces the conveying efficiency of the screw machine to the muck. [0003] At present, the blades of the screw con...

AI Technical Summary

Problems solved by technology

Therefore, the working efficiency of the screw machine has been declining, and in actual work, the construction period is often delayed due to insufficient screw conveying capacity.

[0004] In addition, after the existing screw machine blades are worn out, they cannot be replaced on the general construction site. They need to be returned to the factory. The technical engineer will inspect and measure the wear condition, calculate the wear amount according to the original design drawings, and then make the repair process and draw required drawing

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