Marine seismic prospecting towing winch capable of automatically adjusting

Abstract

The invention provides a marine seismic prospecting towing winch capable of automatically adjusting. The marine seismic prospecting towing winch capable of automatically adjusting comprises a windingdrum which is arranged on a rotating shaft. A motor of the winch drives a driving idler wheel by a driving chain; the driving idler wheel drives the rotating shaft by a reduction box; the reduction box internally comprises three stages of variable gears and automatic adjusting gear shafts; the automatic adjusting gear shaft comprises a supporting shaft, a forward gear shaft, an adjusting gear shaft and a reverse gear shaft; piston parts of a winch braking system are arranged at positions next to the second stage of gears and are connected to a braking part by guide pipes; and the braking partis used for braking the rotating shaft. The marine seismic prospecting towing winch capable of automatically adjusting has the beneficial effects that a hydraulic cabin with large volume is not needed; the marine seismic prospecting towing winch operates in a double-wire synchronous conduction manner, so that the working pressure of each part is shared; when tractive force suffered by the winch isexcessively large, the automatic adjusting gear shafts can rotate automatically, so that the gears and the motor are protected, and the service life is prolonged; and the automatic braking system transfers part of towing force to a base of the winch, so that the load of the winding drum and the gears is reduced, and the using reliability is greatly improved.

Description

technical field [0001] The invention relates to a winch used in marine seismic exploration, in particular to an automatically adjustable marine seismic exploration tow cable winch. Background technique [0002] Marine seismic exploration streamer winch is one of the important components in marine seismic exploration, and plays a very important role in the process of marine seismic exploration. At present, the seismic winch used in offshore seismic exploration is generally a hydraulic winch, which is large in size and weight. It is fixed on the survey ship and cannot be disassembled. The cost and maintenance cost are high. The operation method is basically fixed and the flexibility is not enough. It is affected by the condition of the ship. larger. There are also many problems in the construction process. 1. The size of the seismic winch is relatively large, which blocks the sight of the rear operator, and the noise is relatively large when the winch is running. The rear op...

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Problems solved by technology

1. The size of the seismic winch is relatively large, which blocks the sight of the rear operator, and the noise is relatively large when the winch is running. The rear operator cannot find or hear the situation of the cable end in real time, and cannot respond in time when an emergency occurs. ; 2. The power system of the winch is single, and when a fault occurs, the maintenance cycle is long; 3. During the process of retracting and releasing the towline, due to the uncertainty of seawater flow velocity, flow direction, wind speed, wind direction and other factors, the force on the towline is uneven, thus The traction to the winch is different, and the power will be exceeded at a certain moment, which will affect the service life of the winch

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