Man-carrying and object-carrying electric winch for petroleum drilling machine

Abstract

The invention discloses a man-carrying and object-carrying electric winch for a petroleum drilling machine. The man-carrying and object-carrying electric winch for the petroleum drilling machine comprises a variable-frequency electric control assembly, a winch body, a control box and a control case; a frequency converter, a temperature controller, a heating device and a control loop unit are mounted in a control cabinet at the upper part of the variable-frequency electric control assembly; the winch body comprises an alternating-current variable-frequency brake motor, a speed reducer and a winding drum body, a disc brake and an encoder are installed at the tail of the motor, an automatic rope guider and a rope pressing device are installed on a winch frame, and a limiting device is arranged on an output shaft of the winding drum; a control handle and an emergency stop button are arranged on the control box; the control case is provided with a man-carrying and object-carrying function switching knob, an emergency stop knob and the like; and the winch body is integrally connected with external equipment through a mounting bracket. The invention has the advantages of double purposes of carrying people and objects, convenience in operation, safety, reliability, accurate speed control, stable transmission, low energy consumption, high efficiency, capability of meeting the use requirements of wide areas including high and cold areas and the like.

Description

technical field [0001] The invention relates to the technical fields of oil drilling and mechanical equipment, in particular to an electric winch for carrying people and goods for an oil drilling rig. Background technique [0002] In oil field drilling operations, tools such as pneumatic / hydraulic winches are commonly used for manned and loaded lifting operations; the existing pneumatic / hydraulic winches have the following disadvantages: 1) The drawworks often only have a single function of manned or loaded, and the utilization rate is low ; and the drilling rig platform needs to be equipped with both manned and cargo-carrying drawworks at the same time, the equipment cost is high, and it takes up a lot of space on the drilling platform; 2) In the transmission process, because the energy needs to be converted twice, there are pressure loss, volume loss and Mechanical friction loss, low overall efficiency; 3) Gas / liquid has a certain degree of compressibility, and there is in...

AI Technical Summary

Problems solved by technology

[0002] In oil field drilling operations, tools such as pneumatic / hydraulic winches are commonly used for manned and loaded lifting operations; the existing pneumatic / hydraulic winches have the following disadvantages: 1) The drawworks often only have a single function of manned or loaded, and the utilization rate is low ; and the drilling rig platform needs to be equipped with both manned and cargo-carrying drawworks at the same time, the equipment cost is high, and it takes up a lot of space on the drilling platform; 2) In the transmission process, because the energy needs to be converted twice, there are pressure loss, volume loss and Mechanical friction loss, low overall efficiency; 3) Gas / liquid has certain compressibility, and there is inevitable leakage on the mating surface, which cannot guarantee a strict transmission ratio, poor transmission accuracy, and high energy consumption

4) The working performance and efficiency of pneumatic / hydraulic transmission system are greatly affected by temperature, and the working performance is poor in high temperature or low temperature environment

For example, at low temperature, compressed gas is prone to condensation and freezing, causing equipment damage; hydraulic oil has high viscosity, poor fluidity, and low efficiency

Especially in alpine regions, it is prone to failure, such as in some alpine regions of Russia and Central Asia, it is difficult to meet the use requirements of the local environment

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