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Traditional drilling drawwork

A drawworks and drilling technology, applied in hoisting devices, spring mechanisms, etc., can solve the problems of inapplicability and heavy weight, and achieve the effects of compact structure, stable operation, small volume and quality

Inactive Publication Date: 2015-11-04
SHANGHAI ZHENHUA HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, the drawworks of this conventional transmission structure is becoming less and less suitable for offshore drilling platforms with limited overall size due to their large volume and weight, and it is also urgent to "slim down" in the use of land drilling rigs

Method used

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  • Traditional drilling drawwork
  • Traditional drilling drawwork

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Embodiment Construction

[0018] The above-mentioned features and advantages of the present invention can be better understood after reading the detailed description of the embodiments of the present disclosure in conjunction with the following drawings. In the drawings, components are not necessarily drawn to scale, and components with similar related properties or characteristics may have the same or similar reference numerals.

[0019] figure 2 The structure of the preferred embodiment of the drive drilling drawworks of the present invention is shown. See figure 2 , The transmission drilling drawworks of this embodiment includes a drawworks drum 21 , a planetary gearbox 22 , a drawworks frame 23 , a gear box 24 , a motor 25 and a coupling 26 . The motor 25 in this embodiment is a variable frequency motor. The gear box 24 is designed as a first-stage reduction box, which is provided with 2 to 4 input ports for multiple motors 25 to provide power, and can be designed as a high-power winch or a hi...

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PUM

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Abstract

The invention discloses a traditional drilling drawwork which is compact in structure, large in transmission ratio range and stable in running. According to the technical scheme, the traditional drilling drawwork comprises a drawwork roller, a planetary reduction gearbox, a drawwork rack, a gear compound box, a motor and a coupling, wherein the motor provides power, and after the compounding of the gear compound box, the power is output by an output shaft of the gear compound box, transferred to the planetary reduction gearbox through the coupling, and then transferred to the drawwork roller through the planetary reduction gearbox.

Description

technical field [0001] The invention relates to a winch, in particular to a winch mainly used in offshore oil drilling platforms and land drilling rigs. Background technique [0002] As one of the key equipment for oil drilling, the drawworks function is to provide power to the lifting system of the drilling rig to complete operations such as drilling and tripping. The winch is mainly composed of a power machine, a transmission mechanism, and a drum. At present, the transmission mechanism of conventional drawworks basically adopts a gearbox for direct transmission, and the gearbox usually requires three stages of reduction to ensure that the output torque and speed meet the drilling conditions. With the increase of drilling depth, especially the rapid growth of offshore drilling platforms developing towards deep sea and ultra-deep sea, the demand for high-power winches is increasing. However, with the increase of power, the volume and weight of the conventional transmissio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66D1/22
CPCB66D1/22B66D2700/0125
Inventor 汪淮斌谢蓓莉吴富生
Owner SHANGHAI ZHENHUA HEAVY IND
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