Slurry balanced pipe jacking machine with replaceable cutter rows

Abstract

The invention relates to a slurry balanced pipe jacking machine with replaceable cutter rows. The slurry balanced pipe jacking machine with the replaceable cutter rows comprises a cylindrical shell, wherein the shell is internally provided with cutter changing mechanisms, a cutter head is arranged at one end of the shell, and a center cutter bit is arranged at the center position of the cutter head; switching groove groups are arranged on the cutter head, each switching groove group comprises two oppositely-arranged cutter grooves, and fixing mechanisms are arranged on the outer sides of the cutter grooves; each cutter changing mechanism comprises a motor, a gear and two telescopic units, wherein the telescopic units comprise racks, connectors and the cutter rows; and each fixing mechanism comprises two steadying assemblies correspondingly arranged at the two ends of the corresponding cutter groove, each steadying assembly comprises two control units, and the control units comprise clamping blocks and air cylinders. According to the slurry balanced pipe jacking machine with the replaceable cutter rows, the cutter rows can be replaced in real time in the construction process, the cutter rows are enabled to be applicable to complex soil property environment, cutter abrasion is reduced, and the service life is prolonged; replacing of the cutter rows is convenient, fast and efficient, the fixing effect is reliable, the construction period is shortened, and the construction cost is reduced.

Description

technical field [0001] The invention relates to the field of building construction, in particular to a mud-water balanced pipe jacking machine with replaceable knife rows. Background technique [0002] With the acceleration of urbanization, there are more and more transmission pipeline projects for liquid and gaseous media passing through roads, rivers and buildings inside and outside cities, and trenchless technology has been widely used. As a kind of non-excavation technology, mud-water balanced pipe jacking technology has the advantages of adapting to wide soil layers, stable excavation surface, and small ground settlement. It is suitable for large and medium-sized pipelines crossing roads, rivers and other pipelines (urban water supply and drainage, Comprehensive pipeline, etc.) engineering, so it has been widely used. [0003] Most of the cutting cutter heads of the existing mud-water balanced pipe jacking machines are in the form of a single cutter head. During the ex...

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Problems solved by technology

[0003] Most of the cutting cutter heads of the existing mud-water balanced pipe jacking machines are in the form of a single cutter head. During the excavation construction process, different soil conditions may be encountered in different sections, and the single cutter head form sometimes cannot adapt to complex conditions. soil conditions, and it is easy to aggravate the wear of the cutter head and reduce its service life; when the cutter head is temporarily replaced on the construction site, it can only be replaced by large excavation or manual excavation, which increases the construction cost and construction period

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