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Support with fixable front end for horizontal directional drilling machine

A technology of horizontal directional drilling rig and fixed support, which is applied in directional drilling, drilling equipment, earthwork drilling and production, etc. It can solve the problems of drilling rig deviation, insufficient propulsion, and affecting drilling quality, so as to improve stability and ensure drilling quality. Hole accuracy, the effect of ensuring the efficiency of drilling

Inactive Publication Date: 2013-02-27
CHTC JOVE HEAVY IND
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, during the drilling process, due to the excessive resistance, the front end of the horizontal directional drilling rig often tilts up, so that the propulsion force cannot be increased or the propulsion force is insufficient, or the rig drifts, which affects the drilling quality

Method used

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  • Support with fixable front end for horizontal directional drilling machine
  • Support with fixable front end for horizontal directional drilling machine

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Embodiment Construction

[0015] The fixed support at the front end of the horizontal directional drilling machine of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] The fixed support at the front end of the horizontal directional drilling rig according to the present invention is mainly used for fixing the front end of the horizontal directional drilling rig, which is connected with the hydraulic system of the horizontal directional drilling rig, see figure 1 and figure 2 As shown, it includes a base 10, a sliding sleeve rod 11, a sliding sleeve 12, a hydraulic cylinder 13, a hydraulic motor 14, a drill pipe 15, a connecting piece 16 and a reversing valve (not shown).

[0017] Wherein, the base 10 is fixed on the front end of the horizontal directional drilling machine through a clamping frame (not shown in the figure); , the sliding sleeve 12 can slide up and down on the sliding sleeve rod 11; the hydra...

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Abstract

The invention discloses a support with a fixable front end for a horizontal directional drilling machine. The support comprises a base, a sliding sleeve rod, a hydraulic oil cylinder, a sliding sleeve, a hydraulic motor, a drilling rod and a reversing valve, wherein the base is fixedly arranged at the front end of the horizontal directional drilling machine through a clamping rack; the sliding sleeve rod and the hydraulic oil cylinder are fixedly mounted on the base, and are connected with the sliding sleeve; the hydraulic motor is connected with the drilling rod and the sliding sleeve respectively; and the reversing valve is connected with the hydraulic motor through a hydraulic oil tube. When the front end of the drilling machine is fixed, the hydraulic motor positively rotates so as to drive the drilling rod to rotate. Meanwhile, the hydraulic oil cylinder does withdraw motion; the sliding sleeve drives the hydraulic motor to move in a base direction through a connection piece; furthermore, the drilling rod gradually and rotatably drills into soil, so that the front end of the drilling machine can be fixedly arranged; and otherwise, the hydraulic motor reversely rotates, the hydraulic oil cylinder extends out, and the drilling rod gradually retreats from the soil. The support provided by the invention has the advantages that the drilling machine can be prevented from being up-warped at the front end in a working process, and the offset phenomenon can be prevented from occurring in a drilling process, so that the drilling precision and the drilling efficiency can be ensured.

Description

technical field [0001] The invention relates to the technical field of construction machinery, in particular to a support used for fixing the front end of a horizontal directional drilling machine. Background technique [0002] The horizontal directional drilling rig first appeared in the 1970s. It is a new type of underground pipeline construction engineering machine designed and developed based on the advanced "trenchless technology" concept. It is a combination of traditional highway drilling and oil field directional drilling technology. [0003] At present, because the horizontal directional drilling rig adopts full hydraulic and power drive technology, and has the functions of propulsion, rotation, back expansion, back support and driving of the traveling device, it has become a popular construction method nowadays and can be used for conveying Oil, natural gas, petrochemical products, water, sewage and other substances, as well as construction of various pipelines for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/04E21B15/00
Inventor 黄建华孟聪
Owner CHTC JOVE HEAVY IND
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