Air-operated winch mistaken starting prevention device and operation method

Abstract

The invention discloses an air-operated winch mistaken starting prevention device and an operation method applying the same. According to the device and the method, through ingenious design and application of a button valve sheath, the mistaken behavior that an operator can operate an air-operated winch by standing at will is effectively avoided, and the operation behavior of the operator is standardized; by means of hidden installation of a pedal button valve and linkage design between the pedal button valve and an air motor handle of the air-operated winch, mistaken starting of the air-operated winch is effectively avoided; and through the improved design of a brake band air cylinder and an air brake band and the air control interlocking design between the brake band air cylinder and anair motor, the purposes that when the air motor of the air-operated winch has air, the air brake band stops braking, and when the air motor of the air-operated winch has no air, the air brake band immediately conducts braking are achieved, and the use safety of the air-operated winch is powerfully guaranteed.

Description

technical field [0001] The invention relates to the technical field of drilling floor equipment for oil drilling rigs, in particular to an anti-misstarting device for a pneumatic small winch. It also relates to a method of using the device. Background technique [0002] Pneumatic small winches are widely used on oil rig platforms because they use compressed air as the power source to lift heavy objects, which are clean, environmentally friendly, and economical. When in use, the operator pushes forward or pulls the handle of the air motor inlet, the air motor rotates, and the small winch drum rotates to wind or loosen the wire rope to lift or lower the heavy object. Put the handle in the middle position, the air motor stops without air, and the drum is stopped with the hand brake and foot brake to ensure that the heavy object stops at any position. [0003] However, in the process of use, it often happens: first, the operator leaves the operating position of the small pneum...

AI Technical Summary

Problems solved by technology

[0003] However, in the process of use, it often happens: first, the operator leaves the operating position of the small pneumatic winch for a short time, and the hand brake or foot brake fails to use, resulting in heavy objects falling unrestrained and hurting people; When the winch does not close the intake pipe gate, when doing other work, it is easy to accidentally pull the handle or other objects to hang the handle, so that the small winch will start by mistake, and accidents such as topping, falling, squeezing hands, etc. will occur; the third is Due to the structural design and on-site installation position of the small pneumatic winch, the operator can operate the small pneumatic winch without following the station specified in the operating regulations, which poses a great potential safety hazard

Although innovations have also been carried out on site, such as installing a shield for the handle, etc., the operator still cannot brake in time when the operator leaves, and it is extremely inconvenient to use on site, and the above-mentioned existing problems have not been fundamentally solved.

[0004] To sum up, how to effectively solve the safety hazards existing in the use of the pneumatic small winch without changing the overall structure and basic functions of the pneumatic small winch has become an urgent problem to be solved by those skilled in the art

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