often at stations and sites of railways must be to sort cars.The cars move by means of an electric or diesel locomotive.Sometimes, to accelerate the car is not brought to his seat and kicking after uncoupling.Thus, the car rolls independently.So he stood there, where you need to, or to prevent the shot peacefully standing up, it is necessary to hold the car.For this purpose, the brake shoe.In sorting nodes railways composition and cars set on sloping land or pushed using the locomotive.Then the coaches individually or in groups to establish the desired path.
To install this device, you must use a special additional device.This so-called plug.You can use it as much as possible to safely carry out work on braking trolleys unhooked.To remove the brake shoe from the wheels, as needed plug.
Do not expose the item to any mechanical stress.So, it is not recommended to install wheel chock with a sledge hammer.When using special plugs need to install it only when the composition of the wagons or completely stopped.
brake shoe carriage:
principle of operation The principle of operation of this device is to replace the car rolling friction on sliding friction.This phenomenon is called the railroad skid.
length of skidding depends on a wide variety of factors.For example, how smooth the surface of the rail and the shoe.Critical mass of staff, car and axle load wagon.You also need to take into account the speed with which the railway vehicle is part of the brake shoe.This is also the weather conditions.
How to install a shoe?
For this there are two ways.Professional railroad distinguish mechanized and manual way.
When the carriage wheel pair rests against the head of the shoe, and then slides along the rails, the running resistance increases.The speed of the train composition or slow down.You can put a device on rails hands or using a fork.
To eliminate accidents, especially when working at high speed, the railway used a mechanized shoe brake.It differs from the conventional is that the installation and removal is carried out by means of various mechanical devices, or electrically driven.This drive like an approaching shoe on the way, which will host part.To do this, use the rope.
Braking carriages with the centralized post
This is one of the most popular ways of braking.There are used shoes which can move in special trenches.By using guide ropes shoe moves in the opposite side of the movement of the car.Shoe performs braking and wheel sets using the same wheel to play in its original position.
Sometimes such control mechanical shoe can be performed using the pedals.
here before you start to slow down, it is automatically pushed forward to unhook.When the car naedet pedal, the motor moves the shoe in the direction in which the car is moving.The speed with which the brake shoe will stop the carriage, is proportional to the speed with which it moved at the time of the meeting.
Forms shoes
These devices differ in the way they are installed and removed.There are hand-held devices and mechanical.
For example, the mechanical system is characterized in that the installation or removal of them is carried out only by means of special mechanisms.Such shoes, in turn, are divided into mortise and nevreznye.
You can also note the brake shoe dropping.This is a special kind of devices that are designed to tilt up, when he illegally moves.
Features
shoes shoes to drop the wheels equipped with a manual drive, perform more safety functions.Such devices are designed to forcibly reset the trains off the rails.They are used where possible different failure.
Underride element mounted only after a full stop.For securing the brake shoe in the case of inhibition does not cause a spark device is made of aluminum or brass alloys.
Nakatochny element translates from steel alloys.
shoes are left and right.
