Shield tunneling machine and synchronous translation mechanism of segment rounding device thereof

Abstract

The invention discloses a synchronous translation mechanism of a segment rounding device. The synchronous translation mechanism comprises a supporting beam, a segment assembling machine, the segment rounding device, a first driving part and a second driving part, wherein the supporting beam is arranged on a machine body in a transverse translation mode, the segment assembling machine is arranged at one longitudinal end of the supporting beam, the segment rounding device is arranged at the other longitudinal end of the supporting beam, the first driving part is arranged on the transverse left side of the supporting beam, connected with the segment rounding device and used for driving the segment rounding device to move in the longitudinal direction of the supporting beam, the second driving part is arranged on the transverse right side of the supporting beam, connected with the segment rounding device and used for driving the segment rounding device to move in the longitudinal direction of the supporting beam, and the output state of the first driving part and the output state of the second driving part are synchronous. According to the synchronous translation mechanism, the segment rounding device can be prevented from deflecting in the steering process of the shield tunneling machine, the phenomenon that the supporting pressure on segments is not uniform is avoided, and meanwhile abrasion of a base plate of the segment rounding device is reduced. The invention further discloses the shield tunneling machine. The shield tunneling machine has the advantages.

Description

technical field [0001] The invention relates to the technical field of excavation equipment, in particular to a synchronous translation mechanism of a segment rounder. The invention also relates to a shield machine. Background technique [0002] With the development of China's machinery industry, more and more machinery and equipment have been widely used. [0003] There are many types of mechanical equipment. In civil and construction engineering, large-scale engineering equipment is usually required, such as roadheaders, excavators, and gantry cranes. The cutting device of the roadheader usually includes a hob and a cutterhead. The hobs evenly arranged on the cutterhead are pressed against the rock mass under the action of propulsion. With the rotation of the hob, the rock mass is rolled out into a series of concentric circles. Until the extrusion stress of the hob on the rock mass exceeds the compressive strength limit of the rock mass, the rock mass bursts and breaks. ...

AI Technical Summary

Problems solved by technology

However, during the steering process of the shield machine, since the working states of the driving cylinders are independent of each other, it is easy to cause the deflection of the segment rounder in the tunnel cross-section due to the asynchronous working states of the driving cylinders, which in turn leads to the tensioning of the tubes. The force on the segment is uneven, even the segment is crushed, and the backing plate of the segment rounder is seriously worn, resulting in major economic losses

[0007] Therefore, how to prevent the deflection of the segment rounder during the steering process of the shield machine, avoid the phenomenon of uneven tensioning pressure on the segment, and at the same time reduce the wear of the backing plate of the segment rounder is a challenge faced by those skilled in the art. technical issues

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