Derailer function, introduction of derailer

Derailer is a kind of auxiliary equipment installed on the track to play a protective role, used to protect the safety of the workers or important locomotives and vehicles on the track, when the locomotive and vehicle carry out the track, the derailer will force the locomotive and vehicle off the track to protect the life safety of the inspector who is carrying out the operation.

The personnel who insert and remove the derailer must confirm that the stock track is correct, stand at the derailer to ensure that the equipment status can be accurately judged, and implement the signal transmission requirements of "plugging and withdrawing"; In the event of a temporary failure of the electric derailer (including the fault of self-recovery), the assistant attendant must report for repair in strict accordance with the prescribed procedures, and shall not continue to use it until the cause of the fault is found out and repaired. When the on-site operator finds that the electric derailer can not realize the normal upper and lower rail action faults, they must give feedback to the assistant attendant for the first time, and after the assistant attendant gets the information, stop all the operation of the faulty derailer, and immediately report to the foreman on duty, and the foreman is responsible for unified command, in accordance with the abnormal control measures of the derailer, the derailer is used on site to operate by hand to ensure safety.

The station attendant shall be notified in time of the following situations: fixed derailer maintenance, deactivation, failure; When a mobile derailer is installed between the fixed derailer and the alarm mark; The time of insertion and removal of the derailer; When it is necessary to use the locomotive long hose to connect the ventilation; When the mobile derailer is less than 20m away from the train, the station attendant should be notified to lock the switch at a position that cannot lead to the line; When the train is waiting for inspection.

When carrying out the technical operation of the freight train on the arrival and departure line of the passenger train, the mobile derailer should be set up on the left rail in the direction of the train at both ends of the train for safety protection, and the safety protection distance between the front and rear ends should not be less than 20m and not more than 50m from the train. When the safety protection distance is less than 20m, the station should be notified to lock the turnout at a position that cannot lead to the line by using a communication device connected to the voice recording function (after the switch for electrically centralized control is locked with a lock button or grip, the display plate should be uncovered), and the mobile derailer should be set up at the opposite place of the alarm mark.

When it is necessary to deal with vehicle failures separately during the train inspection operation, the station should be notified in time. The station must first take effective anti-slip measures for the train that needs to be left, and then carry out the evacuation operation, the evacuation distance must meet the provisions of insertion safety protection, and the train should be parked on the flat straight road. After the locomotive is emptied, the train inspection shall set up safety protection signals at both ends of the operating train according to the regulations before the vehicle fault handling operation can be carried out.

In case of inclement weather.

Special circumstances such as curve lines, display and transmission of hand signals: In case of special circumstances such as bad weather and curve lines, while displaying and transmitting hand signals, the inspectors involved in the signal display transmission use wireless walkie-talkies as auxiliary means to transmit information according to the procedures of hand signal display and transmission in turn. After the derailer is put on the rail, all the inspectors of each section can reply before the operation; After the derailer is completed, all the inspectors of each section will reply and report to the duty room before they can line up and return to the station.

1 derailer is a kind of protection device on the track, is used to protect the personnel on the track or important rolling stock, once the locomotive or vehicle enters the track that derails to ensure the safety of the protected object. For example, there are derailers at both ends when the freight train is inspected in the arrival yard, in case there is locomotive entering the same track when the train inspection personnel work, the locomotive can be derailed, although the locomotive cost will be greater than 2, but compared with the life of the train inspection personnel, the protection of human life is still the first place, and some important locomotives 3 also set up derailer at both ends, to protect the safety of these important locomotives and vehicles, but the derailment consequences caused by the general derailer are not very serious, and the derailer can often be recovered. In addition, derailer is not to what speed of rolling stock can play a derailing effect, each derailer has a certain speed range, generally 20 30km h can achieve a good effect.

The two-way sedan-digging equipment used for the attack of the railway protection section can reliably force the locomotive and rolling stock that intrudes into the protection section in any direction to attack the sail brother and take off the line, so as to ensure the safety of transportation and the personal safety of the operator.

Derailment is the phenomenon of the wheelset leaving the rail while the train is running. Derailment refers to the fact that the wheels of the rolling stock fall off the rail surface (including self-re-railing after derailment), or the top of the wheel rim is higher than the rail surface (except for operational needs).

The derailment will cause the train to fall off the road or even be subverted. The derailment situation is very complicated, in addition to the derailment caused by the destruction of the line, the main cause is the excessive lateral grinding force of the wheel or the decrease of the vertical force.

In addition, derailments can be caused by damaged or crooked rails, train speeding, train or steel wheels, or obstructions on the tracks. Derailments can also occur when more than two trains collide or when most trains collide.

Derailed trains are difficult to recover from, and large rail cranes are often used to swing them back onto the tracks.