Pipe jacking machine for water conservancy project

Abstract

The invention relates to the field of hydraulic engineering, in particular to a pipe jacking machine for hydraulic engineering, which comprises a cutting cutterhead and a driving part shell coaxial with the cutting cutterhead, a driving part for driving the cutting cutterhead to rotate is arranged in the driving part shell, and an axis part coaxial with the cutting cutterhead is fixedly mounted in the cutting cutterhead; at least two groups of shaft rods are rotatably connected between the cutting cutter head and the axis part at equal angles, at least two groups of blade groups are fixedly mounted on the shaft rods at equal intervals, each group of blade group comprises at least two axially symmetric blades, a bevel gear is arranged at one end, far away from the axis part, of each shaft rod, and a bevel gear ring meshed with the bevel gear is rotatably connected in the cutting cutter head; under the condition that the cutting cutterhead is not disassembled or in the operation process of the pipe jacking machine, the blades are rapidly converted, the situation that the pipe jacking machine is clamped in a hole due to the fact that the blades are excessively abraded is effectively avoided, meanwhile, the blades can be converted for multiple times by arranging the multiple sets of axisymmetric blades on the shaft rod, and therefore the cutting efficiency is improved in a single pipe jacking project. And the jacking distance of each time is increased.

Description

technical field [0001] The invention relates to the field of water conservancy engineering, in particular to a pipe jacking machine for water conservancy engineering. Background technique [0002] In water conservancy projects, the pipe-curtain underground excavation method has become the research focus of underground space excavation. The pipe curtain construction method is a kind of non-excavation process. During the excavation process, the jacking device of the pipe jacking machine is used to insert steel pipes into the space to be excavated along the horizontal direction to form the pipe curtain. [0003] For example, the patent No. "201510670097.1" discloses an earth pressure balance pipe jacking machine, which can make full use of the available space for pipe jacking under the harsh construction space conditions, thereby forming a pipe curtain. [0004] However, the cutter head on the pipe jacking machine is prone to wear and tear when encountering slightly weathered ...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above-mentioned shortcomings existing in the prior art, the present invention provides a pipe jacking machine for water conservancy projects, which can effectively solve the problems caused by the wear and tear of the cutter head during the construction process in the prior art due to the easy loss of the cutter head on the cutter head. If the machine head is too large, it will be stuck in the hole, and the pipe jacking machine can only be lifted out through large excavation, which will cause delays in the construction period and increase the cost of construction measures.

Images