Tuesday, October 25, 2011

Winch - ace on the roads

A vehicle with high maneuverability enables a person to get into difficult places. But even perfectly prepared for off-road Jeep can get stuck in the most unexpected place because of inattention or driver's unpredictable nature, which he invaded. If a motorist will pull in the journey through forests and fields, sooner or later he will come to the problem of choosing the winch. Indeed, this mechanism could be his last hope of returning home. Once on the hood, and even higher in the dirt, off-road lover has a choice - to use a shovel, jack, chainsaw and other similar tricks, but these options can not work. The winch also provides a winding rope on one end of which a stuck car, and the other end is fixed on the tree (fits any stable object, able to withstand the weight of the car in the woods in this role usually act just trees). It may not be needed on the trip, but need to be with him. Winches are manual and automatic. Hand winches are driven by physical forces of people and power - with the help of a powerful energy source (battery or self-motor). Hand winch is better to use on the road, where is not expected too serious difficulties in passing, and they are more appropriate for a minor jeeps. Of course, there are winches that can pull out of the mud heavy vehicles, but on the whole process will take a long time, plus they take a lot of space in the trunk. Most often, preference is given to hraptsovym hand reel. This device clamps missed through cable and pulls it step by step. There she and disadvantages - when wet rope can slide in the clamp and chain and rope hoists are designed more for vertical loads, in addition to the mud of confusion can occur with ropes and chains of this mechanism. More reliable and powerful winches - lever with worm gears, but for the plus and minus costs - they are more bulky and also require much effort and time. Some use as a winch jack "Hi Jack", but here we must not forget perezakrepit cable, since it can choose the length of his rod, which is not more than 1,5 m-conserving their time and energy in a way prefer automatic winch. Considerable cost of such devices pays off in the case - sometimes do not mind spending the extra few hundred dollars just to have time to get your jeep until dark of the swamp. Automatic winches vary traction, measured in ton-forces. This parameter is calculated by multiplying the vehicle weight (tons) in 1,5 times. When "vykovyrivanii" Warhorse from the earth into account not only its weight, but indicators such as clearance, bridges, base area - all this must be taken into account, to be ready for "sucking" machine. It frequently happens that a steel winch cable breaks. Winches are stationary and autonomous. Standalone can work from an independent source of power from the car - petrol engine or battery. Their advantage is that they can be used with the engine and not to take unnecessarily. However, there are drawbacks - the petrol winch, which is needed and supply of fuel, take up much space, and for transportation and use of electric winches to tinker with a fairly long and oversized wires. Stationary winch mounted on the machine are often at the front of the car, near the bumper, at least - on the back, usually the rear winch is a spare in case you have nowhere to go forward and have to "retreat". Stationary winch differ in the drive - hydraulic, electrical and mechanical. Of course, in terms of reliability leader manual, which can endure any treatment and will not break due to the simplicity of its design. It can change speed, and the resource it has unlimited. But the consequence of its advantages are disadvantages - force limiters on its drum is a cut-off one-time key that is difficult to replace in the trip. While pins may be replaced by any solid object, but it is fraught with breakage of Cardano, bracket, and even the frame and gearbox. Another disadvantage of such a winch - the inability to control her out of the cabin, but if you do not watch the cable on the winding drum, the device may break down. Rather unpleasant pitfall is that a mechanical winch (complete with hob and power takeoff) can be installed only on those cars, where it is provided by the manufacturer. Electric winches cause distrust in heavy dzhiperov and rave reviews from the usual off-road enthusiasts. Feature of the operation of this mechanism are a respite between the operation to avoid overheating, and the inability to work under water, such as when pulling out of the ford. And while this device can operate without the aid of the engine, while its direct work is not more than 10-15 minutes and then the voltage drop, and the chance to pull out deeply entrenched machine reduced significantly. Electric winch easily installed on any car, and she can manage and remotely. Hydraulic winch is not common in Russian dzhiperov. Power from the motor to the drum "hydraulics" is transmitted by pumping hydraulic fluid to the hydraulic pump motors. Pressure from the pump gidrorulya, which is usually used for medium power hydraulic winches, with solenoid valves switched from Gora to motor. For a more powerful gidrolebedok uses a separate pump with a pulley. The positive side of hydraulics - it can be installed on any machine, it has a remote control, adjustable limiter output, it is more high-torque and long-working than an electric winch. But it loses its mechanical and electrical brethren in the sampling rate and cost of cable.

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