A pipe jacking machine deviation rectifying device

By combining the support frame and the pushing cylinder of the pipe jacking machine's correction device, the problem of pipeline axis deviation during pipe jacking construction is solved, achieving rapid and accurate axis alignment and improving the equipment's versatility.

CN121251877BActive Publication Date: 2026-05-05SHANXI NO 8 CONSTR GRP
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Patent Information

Application Number
CN202511672985.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-11-14
Publication Date
2026-05-05
Estimated Expiration
2045-11-14

AI Technical Summary

Technical Problem

In pipe jacking construction, the difference in outer diameter of pipes of different diameters causes deviation of the central axis of the pipe. Traditional correction methods have low accuracy and poor efficiency, making it difficult to meet the needs of modern, efficient and high-precision construction.

Method used

A pipe jacking machine alignment device is adopted. Through the combined design of support frame, pushing cylinder, back seat and insert plate assembly, and by using the cooperation of adjustment cylinder and inclined block, the pipe support height and axis alignment can be quickly and accurately adjusted to ensure that the pipe is consistent with the machine head axis.

Benefits of technology

It enables rapid and precise alignment of the pipeline axis, reduces the risk of plate deformation, extends the service life of the device, and improves the versatility and installation stability of the equipment in different construction environments.

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Abstract

This invention belongs to the field of pipe jacking machine technology, specifically relating to a pipe jacking machine alignment device, including a support frame, a backrest, and a pushing cylinder. The backrest is mounted on the support frame. Two pushing cylinders are provided, each connected to the support frame via a support plate, which is slidably connected to the support frame. A push plate connects the two pushing cylinders, with through holes and insert plate assemblies cooperating with the pushing cylinders. The cylinder body of the pushing cylinder has slots cooperating with the insert plate assemblies. The push plate is slidably connected to the support frame. A pair of support rails are slidably connected to the support frame. An adjusting frame is slidably connected to the support frame, with an adjusting cylinder between the adjusting frame and the support frame. Both the adjusting frame and the support rails have cooperating inclined blocks. By driving the adjusting frame with the adjusting cylinder, and utilizing the cooperation between the inclined blocks on the adjusting frame and the inclined blocks on the support rails, the height of the pipe support point can be changed, adjusting the axis of pipes of different diameters to be aligned with the machine head axis.
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