Pipeline pushing machine

Abstract

A pipeline pushing machine comprises a base, push-and-pull hydraulic cylinders, a transmission mechanism and a clamping mechanism, wherein the push-and-pull hydraulic cylinders are fixed to the left side and the right side of the base; the push-and-pull hydraulic cylinders drive the clamping mechanism to act through the transmission mechanism, and a pipeline is driven to move forward by the clamping mechanism; the clamping mechanism is arranged on the periphery of the pipeline; the clamping mechanism comprises a connection frame, a pipeline clamping frame and a clamping tile; the connection frame is fixedly connected with the clamping tile and hinged to a crank of the transmission mechanism through a clamping tile hinge pin. The pipeline pushing machine is simple in structure and convenient and rapid to use, assists in pushing the whole back-dragged pipeline during pipeline crossing in a long-distance complex stratum, increases the construction length of crossing in a horizontal directional drilling method, enhances adaptive capacity to the complex stratum, and widens the application range of crossing in the horizontal directional drilling method.

Description

technical field [0001] The invention relates to a pipeline laying auxiliary device, in particular to a propulsion auxiliary machine suitable for crossing pipelines by horizontal directional drilling, and belongs to the technical field of rock and soil drilling. Background technique [0002] With the vigorous development of the pipeline transportation industry, the construction of pipeline network projects is becoming more and more technological. At present, for projects where the ground surface cannot be excavated for pipeline laying, the industry usually adopts the method of horizontal directional crossing to complete the pipeline construction. It is guided, reamed and pulled back by the horizontal directional drilling rig according to the designed trajectory to realize the laying of pipelines across obstacles It is suitable for the laying or renewal of pipelines for water supply, gas, electricity, telecommunications, natural gas and oil. However, in the crossing construct...

AI Technical Summary

Problems solved by technology

However, in the crossing construction process of the horizontal directional drilling method, if the crossing distance is long, the pipe diameter is large, or complex geological factors are encountered, when the pipeline is dragged back according to the conventional process, it is necessary to exert a large force on the dragged pipeline. This force may exceed the capacity of the drilling rig used and the allowable load of the drilling tool, causing damage to equipment and tools, and causing losses to the pipeline laying project.

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