Build Daily

Equipment And Tools

August 12, 2017 18:08

Winch LM-2 - loyal assistant installer

click fraud protection

What is a winch LM?

Since ancient times, people have used various mechanisms for moving cargo.A large group of them, dubbed the winch has a common feature of the force transmission by a chain, cable, rope or rope wound on a special design element, called a driving drum.

Usually winch drives can be very different.Depending on the installation location and destination, the drum may be driven by muscular force or engines (electric, hydraulic, internal combustion).Due to the versatility and simplicity widespread drives with electric motors.Winch LM-3.2, 5, 71, 140, 1 - such devices can be found at a construction site often.

Winches mounted on railway junctions (eg, LM-71), perform the function of mobile devices and, in this case, stands for shunting winch (LM), transmission efforts horizontally.Essentially, it is as electrically driven winch drum on.

Electric winch as standard structural configuration usually has a mounting frame with reinforced her engine, gear mechanism, braking system, by the drum with wound flexible force transfer element (chain, wire rope, rope).

on the drum when winding can fit a certain amount of rope or cable of a certain thickness (kanatoemkost), designed for a working load of the winch (pulling power).

Electric winch LM - how to determine the load capacity winch?

The parameter Traction is usually specified in the designation of the winches.For example, LM-5 is the value of this effort is five tons.Like all winch assembly, it is not intended for lifting people.Only the movement and the movement of a variety of goods in the course of all kinds of installation and setup.

Another representative assembly winches, which occupies an intermediate position between the five-ton and two-ton, this LM-3.2.She is able to pick up three and two-tenths of a ton of cargo.As with all the family of such winches, the drum has a horizontal position with the installation on a foundation or a special frame.All variants are equipped with powerful motors, drums with kanatoemkostyu up to 250 meters and have a speed of the rope drum to receive about a third of a meter per second.

The constructions of modern winches can not do without the brake system, to ensure safe operation mechanisms.Applicable on all winches brakes type TAG stop performing and reliable holding drum is stationary with the engine shutdown.

Among installation winches have less lifting, such as LM-1 , calculated per one thousand kilograms of cargo.The total number of models includes the value of the thrust force of a quarter of a ton.All of these winches are equipped with these types of brakes with different braking torque (the higher the value of the traction parameters, the greater the braking torque).

Electric winch LM - especially the use

As already mentioned, the winch can be designed to work on the cargo movement in the horizontal direction.Often when such works have a need for maneuvering and pulling rail cars and rail freight gondola cars with high load-carrying capacity (from sixty-three tons and more than one hundred and twenty tons).

It is clear that even for the rolling of such goods require winch with high traction value, such as LM-140 or previously mentioned, LM-71 .The management of such mechanisms can be both remote and local.For shunting movements must be provided with the reverse rotation of the electric motor during the free drum.

It is decided using a worm gear of special design, combined with an electric motor, providing the drum off.The embodiment includes a free wheeling drum cam switching off when reversing the motor.

As capstan LM-2 , shunting winch can also, if necessary, be used as a hoist, providing high reliability of work.With small dimensions, the thickness of the rope device is about 25 millimeters, the overall length of the drum will be one or two hundred meters.In conclusion, it should be noted that the power to all winches are driven by industrial three-phase mains voltage of 380 V.

for private use, for example in the construction or repair of houses, you can use the winch LM light duty.Especially when the work is performed at heights, and have no desire to balance a weighty burden on the ladder or makeshift cradle.For horizontal movement of goods, of course, does not make sense to use the machines, because they are needed for railway paths, which are difficult to expand even at quite spacious plot, and that talking about a few hundred square meters.

instagram viewer