Rotary drilling rig and working device thereof

A technology of working device and rotary drilling rig, which is applied in the directions of rotary drilling rig, rotary drilling, drilling pipe, etc., can solve the problems of reducing pile forming efficiency, etc., and achieve the improvement of pile forming efficiency, small occupied space and high construction efficiency. Effect

Active Publication Date: 2013-05-01
SANY HEAVY IND CO LTD (CN)
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This reduces the

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  • Rotary drilling rig and working device thereof
  • Rotary drilling rig and working device thereof
  • Rotary drilling rig and working device thereof

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[0034] It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other if there is no conflict.

[0035] The basic idea of ​​the present invention is to use the bottom expanding equipment of the bottom expanding equipment—the expanding bottom drill bucket to replace the drill bucket of the existing rotary drilling rig, and to combine it with the existing rotary drilling rig working device to achieve only One kind of equipment—rotary drilling rig, can realize the function of drilling and reaming, and improve the efficiency of pile formation. The preferred embodiments of the present invention will be further described below in conjunction with the accompanying drawings:

[0036] figure 1 The working device provided in the first embodiment of the present invention is shown. The working device is used for a rotary drilling rig and includes a power head 2 and a drill rod 1. The power head 2 includes a power head box an...

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Abstract

The invention discloses a rotary drilling rig and a working device thereof. The working device comprises a power head and a drill rod, wherein the power head comprises a power head box, a revolving driving piece, a revolving connection mechanism, a revolving platform, a first hydraulic oil pipeline and an expanded-base drilling bucket arranged at the bottom of the drill rod; the revolving connection mechanism comprises a revolving part and a fixed part sleeved outside the revolving part; the fixed part is connected with the power head box and provided with a fixed oil hole; one end of the revolving part is in driving connection with the revolving driving piece, and the other end of the revolving part is connected with the revolving platform; the revolving part is provided with a revolving oil hole; an oil inlet of the revolving oil hole can be communicated with the fixed oil hole; the revolving platform is provided with a pipe winding device; one end of the first hydraulic oil pipeline is communicated with an oil outlet of the revolving oil hole; and after the first hydraulic oil pipeline is wound by the pipe winding device, the other end of the first hydraulic oil pipeline is communicated with the expanded-base drilling bucket. The working device can be used for realizing the multifunctionality of the rotary drilling rig, has hole drilling and broaching functions and has the advantages of high pile-forming efficiency, compact structure and small occupied space.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a rotary drilling rig and a working device thereof. Background technique [0002] Rotary drilling rig is a kind of construction machine used for hole forming in construction foundation engineering. It is mainly suitable for the construction of sandy soil, cohesive soil, silty soil and other soil layers. It is widely used in foundation construction. The rotary drilling rig is composed of chassis, working device, electrical system and hydraulic system, among which the working device is an important part of the rotary drilling rig. The working devices of the existing rotary drilling rig include: a power head, a drill rod, and a drill bucket. The power head also includes a box body and a drive connection piece arranged in the box body. The drive connection piece is connected with the drill pipe to drive the drill pipe to perform rotary motion. The driving force of the above-men...

Claims

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Application Information

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IPC IPC(8): E21B7/28E21B19/14E21B3/02
Inventor 刘志岩刘元宇崔亚东
Owner SANY HEAVY IND CO LTD (CN)
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