Rotary drilling rig and mast device thereof

A technology for rotary drilling rigs and masts, which is applied in the field of rotary drilling rigs and masts, and can solve the problems of increased damage to parts, increased wear of pin shafts, and high labor costs.

Inactive Publication Date: 2012-07-04
BEIJING CSR TIMES LOCOMOTIVE & ROLLING STOCK MECHANICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] It can be seen from the above that at present, when the rotary drilling rig is transferred, the folding of the anchor frame and the upper mast is achieved by dismantling the pin shaft and using the wire rope to manually pull the rotation of the anchor frame and the upper mast to realize the folding of the mast device of the rotary drilling rig. It is time-consuming and laborious to remove the pin shaft, and the frequent disassembly of the pin shaft will increase the wear of the pin shaft and increase the possibility of damage to the parts; at the same time, due to the need for manual operation, there are great unsafe factors, not only the transition efficiency is low , the labor cost is also high, affecting the progress of the entire project

Method used

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  • Rotary drilling rig and mast device thereof
  • Rotary drilling rig and mast device thereof
  • Rotary drilling rig and mast device thereof

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Embodiment Construction

[0035] The core of the present invention is to provide a mast device for a rotary drilling rig. The anchor bracket and the upper mast of the mast device are easy to fold, which is not only safe but also time-saving and labor-saving, and can also greatly improve the transition efficiency. Another core of the present invention is to provide a rotary drilling rig comprising the above-mentioned mast device.

[0036] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] Please refer to Figure 4 and Figure 5 , Figure 4 It is the front view of the automatic folding mechanism of the anchor bracket provided by the present invention; Figure 5 It is a left view of the automatic folding mechanism of the anchor bracket provided by the present invention.

[0038] In this embodiment, the mast...

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PUM

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Abstract

The invention discloses a mast device for a rotary drilling rig. The mast device comprises a cathead, an upper mast hinged with the cathead, a middle mast hinged with the upper mast, an automatic cathead folding mechanism and an automatic upper mast folding mechanism, wherein the automatic cathead folding mechanism comprises a first folding oil cylinder arranged between the cathead and the upper mast; and the automatic upper mast folding mechanism is a connecting rod connecting device with a crank sliding block and two rockers. The cathead and the upper mast of the mast device can be automatically folded when the rotary drilling rig is used for transfer transportation, so that the mast device is conveniently assembled and disassembled by a user, time and labor are saved, and the transfer efficiency of the rotary drilling rig is greatly improved. The invention also discloses the rotary drilling rig with the mast device.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a mast device for a rotary drilling rig. The invention also relates to a rotary drilling rig comprising the above-mentioned mast device. Background technique [0002] Rotary drilling rig is a construction machine for hole-forming operations in building foundation engineering. Rotary drilling rigs are mainly suitable for the construction of sandy soil, cohesive soil, silty soil and other soil layers, and are widely used in various foundation constructions such as cast-in-place piles, continuous walls, and foundation reinforcement. [0003] The rotary drilling rig needs to be transported during construction, and the drilling rig needs to be disassembled and transported during the transition and transportation. Wherein the mast part will be folded. The mast device of the rotary drilling rig includes five major components: the anchor frame, the upper mast, the middle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B15/00
Inventor 陶明超陈曦王燕张昊
Owner BEIJING CSR TIMES LOCOMOTIVE & ROLLING STOCK MECHANICS
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