High-efficiency composite braking mode alternating current frequency conversion winch and lowering control method thereof

A technology of AC frequency conversion and mode, which is applied in the direction of hoisting device and clockwork mechanism, etc., can solve the problems of electric control system impact, energy cannot be released quickly, and easy to cause failure, etc., achieve high safety, save drilling time, The effect of high overall efficiency

Active Publication Date: 2018-10-12
BAOJI PETROLEUM MASCH CO LTD +2
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  • Abstract
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Problems solved by technology

[0004] The purpose of the present invention is to provide a high-efficiency composite brake mode AC variable frequency winch, which has three kinds of brakes, and solves the problem that only relying on the

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  • High-efficiency composite braking mode alternating current frequency conversion winch and lowering control method thereof
  • High-efficiency composite braking mode alternating current frequency conversion winch and lowering control method thereof
  • High-efficiency composite braking mode alternating current frequency conversion winch and lowering control method thereof

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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] The present invention is a high-efficiency compound braking mode AC variable frequency winch, such as figure 1 , figure 2 As shown, the automatic drilling device 7 is included, the automatic drilling device 7 is connected to the gearbox 2 through the push plate clutch 6, the gearbox 2 is connected to the AC frequency conversion main motor 1 through the first coupling 14, and the gearbox 2 is also connected to the The clutch 10 is connected with the drum shaft assembly 4, the drum shaft assembly 4 is connected with the electromagnetic eddy current brake 12 through the second coupling 3 or the drum shaft of the drum shaft assembly 4 is connected with the electromagnetic eddy current brake 12 through the key, and the electromagnetic eddy current brake A hydraulic disc brake 11 is connected between 12 and the drum shaft assembly 4 throug...

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Abstract

The invention discloses a high-efficiency composite braking mode alternating current frequency conversion winch. The high-efficiency composite braking mode alternating current frequency conversion winch comprises an automatic bit feed device and a PLC (Programmable Logic Controller) control system, wherein the automatic bit feed device is connected to a speed changing box which is connected to analternating current frequency conversion main motor and a drum shaft assembly respectively through a first coupler and a clutch; the drum shaft assembly is connected to an electromagnetic eddy currentbrake by a second coupler; or a drum shaft of the drum shaft assembly is in key connection with the electromagnetic eddy current brake; a hydraulic disk type brake is in key connection between the electromagnetic eddy current brake and the drum shaft assembly; the PLC control system is connected to a driller control room, a frequency convertor, a drum coder and a clutch; the driller control roomis connected to the electromagnetic eddy current brake and the hydraulic disk type brake; the frequency convertor is connected to the alternating current frequency conversion main motor; and the drumcoder is connected to the drum shaft assembly. The high-efficiency composite braking mode alternating current frequency conversion winch disclosed by the invention has three types of brakes. The invention also discloses a lowering control method of the high-efficiency composite braking mode alternating current frequency conversion winch.

Description

technical field [0001] The invention belongs to the technical field of petroleum drilling equipment, and in particular relates to a high-efficiency compound braking mode AC frequency conversion winch, and the invention also relates to a lowering control method of the high efficiency compound braking mode AC frequency conversion winch. Background technique [0002] The drawworks is one of the three major working machines of the oil drilling rig and the most important equipment in the drilling equipment. It is a mechanical transmission equipment integrating electricity, gas and hydraulic control. Casing and other operations, (2) control drilling pressure and deal with accidents during the drilling process, (3) responsible for the function of raising and lowering the derrick and base of the drilling rig. With the demand for updating and developing industrial technology and petroleum equipment, drilling winches are developing in the direction of diversified forms, large power, a...

Claims

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Application Information

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IPC IPC(8): B66D1/48B66D1/12B66D1/14B66D5/02B66D5/14B66D5/28B66D5/30
CPCB66D1/12B66D1/14B66D1/485B66D5/02B66D5/14B66D5/28B66D5/30
Inventor 梁顺安李超高勇超刘平韩亚洲
Owner BAOJI PETROLEUM MASCH CO LTD
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