Axial reversing rock drilling device with compact structure

A rock drilling device and axial technology, which is applied in the field of axial reversing rock drilling devices, can solve the problems of reducing on-site work efficiency and achieve the effect of saving cylinder space and reducing quality

Active Publication Date: 2020-08-21
HUNAN UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is sometimes difficult for the lifting equipment to reach the fault site, and the rock drilling jumbo needs to meet with the equipment maintenance site from the underground or the construction site to replace or debug the rock drilling device, which reduces the work efficiency on site.

Method used

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  • Axial reversing rock drilling device with compact structure
  • Axial reversing rock drilling device with compact structure
  • Axial reversing rock drilling device with compact structure

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Embodiment Construction

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0016] see figure 1 , an axially reversible rock drilling device with a compact structure, including an impact piston 1, a cylinder body 2, a front guide sleeve 3, a middle guide sleeve 4, a reversing valve 5, a rear guide sleeve 6, a high-pressure oil inlet pipeline 7, a piston Rear cavity 8, low-pressure oil return pipeline 9, piston middle cavity 10, piston front cavity 11, the impact piston 1 and the front guide sleeve 3 are installed with clearance fit, a...

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Abstract

The invention patent discloses an axial reversing rock drilling device with a compact structure. An impact piston and a front guide sleeve are installed with a clearance fit; a reversing valve and a rear guide sleeve are installed with a clearance fit; the reversing valve and the front guide sleeve are installed with a clearance fit; the front guide sleeve and a middle guide sleeve are installed with a transitional fit to a cylinder block; and the middle guide sleeve and the rear guide sleeve are installed with a transition fit. A high-pressure oil inlet pipeline and a piston rear cavity are cut off and communicated under the interaction of the reversing valve and the impact piston; the high-pressure oil inlet pipe and a piston front cavity are always open; and a low-pressure oil return pipeline is cut off and communicated with a piston middle cavity and the piston rear cavity under the interaction of the reversing valve and the impact piston. Through the switch of high-pressure oil and low-pressure oil, a force that causes the impact piston and the reversing valve to continuously reciprocate is generated at the effective action surface of the impact piston and the reversing valve,so as to realize the rock drilling action of the impact piston.

Description

technical field [0001] The invention relates to the technical field of construction machinery, in particular to an axial reversing rock drilling device with a compact structure. Background technique [0002] At present, the mass of hydraulic rock drilling equipment is mostly more than 150kg, and the installation and commissioning process requires the cooperation of small cranes or forklifts. When the rock drilling device breaks down in the underground or in the mine site, lifting equipment is needed to assist in the installation and debugging. However, the lifting equipment is sometimes difficult to reach the fault site, and the drilling jumbo needs to meet with the equipment maintenance site from the underground or the construction site to replace or debug the rock drilling device, which reduces the work efficiency on site. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention provides an axial reversing rock drilling devic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B1/26
CPCE21B1/00
Inventor 李叶林屠毅尹亮丁杰
Owner HUNAN UNIV OF ARTS & SCI
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