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Mast, rotary drilling rig, bulkhead for mast, and mast manufacturing method

A manufacturing method and technology for a rotary drilling rig, which are applied in the field of mast, rotary drilling rig and mast manufacturing, can solve the problems of fatigue damage, the difficulty of the mast to meet the complex working conditions in the engineering field, hidden dangers and other problems

Active Publication Date: 2020-12-01
ZOOMLION HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the mast provided by the above-mentioned prior art is still difficult to meet the complex working conditions in the engineering field in actual use, and it is prone to fatigue damage after long-term use, posing a major safety hazard

Method used

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  • Mast, rotary drilling rig, bulkhead for mast, and mast manufacturing method
  • Mast, rotary drilling rig, bulkhead for mast, and mast manufacturing method
  • Mast, rotary drilling rig, bulkhead for mast, and mast manufacturing method

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Embodiment Construction

[0039] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0040]As mentioned above, during the hole forming process, the rotary drilling rig is subjected to frequent impact loads, vibration loads, rotary braking loads, etc., and even abnormal external loads such as drill sticking, which cause the mast to withstand multi-axis such as torsion and bending. Combined load action. In the rotary drilling rig, the mast may include an upper mast, a lower mast and a lower mast connected coaxially. The main structures of the three are similar, and the mast described in the present invention may be any one of them.

[0041] refer to Figure 4 As shown, the mast according to a preferred embodiment of the present invention include...

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Abstract

The invention relates to the field of rotary drilling rigs and discloses a mast, a rotary drilling rig, a partition plate for the mast and a mast manufacturing method. The mast comprises a front coverplate (1), a rear cover plate (2) and the partition plate (3). The front cover plate (1) and the rear cover plate (2) are welded to each other to form a box-shaped structure, the partition plate (3)is arranged in the hollow cavity of the box-shaped structure and comprises a partition plate body (33) and a connecting part (34) extending from the periphery of the partition plate body (33), and thepartition plate (3) is integrally connected with the front cover plate (1) and / or the rear cover plate (2) in an attached mode through the connecting part (34). The anti-bending and anti-torsion performance of the mast can be effectively improved, the partition plate can be conveniently connected to the front cover plate and the rear cover plate through fasteners, precise positioning is not needed in the manufacturing process, and the mast manufacturing efficiency can be improved conveniently.

Description

technical field [0001] The present invention relates to a rotary drilling machine, in particular to a mast. In addition, the present invention also relates to a bulkhead that can be used for the mast, a rotary drilling machine with the mast, and a mast manufacturing method. Background technique [0002] Rotary drilling rig is a construction machine suitable for hole-forming operations in building foundation engineering. figure 1 Shown is a typical structure of a rotary drilling rig, including a crawler chassis 30, a luffing mechanism 40, a hoisting mechanism 50, a mast 20, a drill rod 60, a drill bit 70, and the like. Wherein, the luffing mechanism 40 is connected between the crawler chassis 30 and the mast 20, and the drill pipe 60 is installed on the mast 20 through the transmission of the power head 80, so that it can move with the luffing of the mast 20 under the drive of the luffing mechanism 40, and With the action of the hoisting mechanism 50, it moves axially relat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B15/00
CPCE21B15/00
Inventor 佘玲娟尹莉付玲
Owner ZOOMLION HEAVY IND CO LTD
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