Pipe jacking machine head torsion deviation rectifying devices and deviation rectifying method

Abstract

The invention discloses pipe jacking machine head torsion deviation rectifying devices and a deviation rectifying method. The pipe jacking machine head torsion deviation rectifying devices are arranged outside a shell of a pipe jacking machine head in a protruding manner, and each torsion deviation rectifying device comprises a deviation rectifying belt and transmission wheels; the transmission wheels are sleeved with the corresponding deviation rectifying belt, each deviation rectifying belt is driven by rotation of the corresponding transmission wheels to conduct transmission in the annular direction of the shell, the transmission wheels are driven by driving motors to rotate, and the driving motors are arranged on the shell; and strain sensors are further arranged outside the shell. According to the pipe jacking machine head torsion deviation rectifying devices and the deviation rectifying method, the convex curved surface is additionally arranged on the outer wall of the front shell of the pipe jacking machine head, so that the aim of correcting torsion is fulfilled; and meanwhile, under the condition that the deviation correcting devices are not started, the deviation correcting devices also have the effects of relieving the torsion tendency of the machine head and preventing the torsion of the machine head.

Description

technical field [0001] The invention belongs to the field of pipe jacking equipment, and particularly relates to a torsion rectification device of a pipe jacking machine head and a rectification method thereof. Background technique [0002] During the pipe jacking construction process, the pipe jacking head is prone to twist in the cross-sectional direction. There are many factors that cause the torsion of the pipe jacking machine head, such as: 1. When the pipe jacking is carried out in a curve jacking, due to the uneven reaction force of the surrounding soil, the resultant force of the soil reaction force does not pass through the center of the cross section of the machine head. As a result, the machine head is twisted; 2. When the pipe jacking is advanced, there is a defect in the installation of the rear main jacking cylinder, which causes the direction of the jacking force to be not parallel to the axis, which leads to the torsion of the machine head; 3. The internal fa...

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Problems solved by technology

[0007]The above are the more commonly used twist correction methods in the engineering field, but the above twist correction effect is relatively slow, and once encountering a large twist of the machine head, it is often effective little

At the same time, the current pipe jacking head also lacks a device for monitoring and preventing the torsion of the pipe jacking head, which makes it impossible for engineers to predict the hidden danger of pipe jacking head twisting in advance

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