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Power steering pump drive with no problem I think
In fact, can produce their own hydraulic electric winch, hydraulic motors are a lot of models are all about, good purchase, according to their own vehicles power steering pump pressure and flow parameters to select the appropriate hydraulic motor, or install a separate gear pump is also OK, very cheap, less power, can be driven with a belt. There are many motor is built-reducer, and buy a low-power motor with a gear on the motor power cheaper than direct buy, then buy a three-way valve, choose the best one electronic control, so the cab in the convenience of control. To prevent the car sliding in the other end of wire rope drum mounted on a ratchet. If the election is a piston motor with this gear is not installed, because the three four-way valve in the neutral position when the motor from the lock, if the gear or vane type motor or ratchet to be installed.
Such as low-speed electric winch, and what is not often used low precision machining, welding a shelf, roller bearings on both ends of the shaft do not line, look for turning vehicles and the axes of two complementary sets of welding in the shelf. Ratchet production CNC WEDM if you can find it, look for pieces can be made out of thick steel plate, this is fine, if never too simple, like the thick steel plate on the draw, with a ratchet cutting gas cutting out on the line. Hydraulic pump and valve parts easiest way is to farm machinery parts company to find, because I have seen a kind of dump some of this on agricultural tricycle assembly, fuel tank. Pump and valve assembly are brought together with pulley buy back to be a support installed in the engine position, the hanging strap to OK it!
From the principle and prototype design point of view, hydraulic electric winch is not required electricity. In addition to the hydraulic electric winch hydraulic supply other than the use of a manual clutch lever and the manual valve can be fully operational so that the hydraulic electric winch to work.
But with the improvement of work efficiency requirements, the current CHAMPION H Series Hydraulic electric winch, SERVA PIERCE series of commonly used hydraulic electric winch solenoid valve replacement manual valve, from hydraulic electric winch was also used in electronic control. Solenoid valve controlled hydraulic electric winch simply the retractable line conversion, and the electric winch itself remains independent of operating conditions. An analogy: the same light, control and extinguishing of lights may be light pull switch, key switch, touch switch, or voice-activated switch, light control switch, do.
In addition, for larger hydraulic electric winch, designers use electromagnetic valve to control the retractable electric winch line outside, even with the gas components to achieve the clutch operation, such as SERVA PIERCE series hydraulic electric winch, so the real liberation of manual valve and the heavy clutch and oil.
Summarize: hydraulic electric winch in and out of oil just for the realization of income on line and pay-off function of power, and electric winch with a large current drive is not the same as the electromagnetic valve requires only a negligible current loads and power consumption.