CN201276112Y - Lorry with vacuum braking system arranged at end - Google Patents

Abstract

A railway freight car with a vacuum brake system end arrangement, including a car body, a vacuum brake device and an air brake device, the vacuum brake device is arranged at one end of the car body. The vacuum braking device of the utility model is arranged at the end of the vehicle body, which reduces the load bearing in the middle of the vehicle body and reduces the potential safety hazard during operation, and adopts the centralized arrangement of the vacuum braking devices to facilitate inspection and maintenance.

Description

A kind of railway wagon with vacuum brake system end arrangement

technical field

The utility model relates to a railway freight car, in particular to a railway freight car with a vacuum braking system end arrangement.

Background technique

At present, with the gradual increase of my country's international influence, Chinese products have fully participated in the competition in the international market, and railway products are no exception. Vehicles running on the Tanzania-Zambia railway must be equipped with two braking systems: air brake and vacuum brake. If both the air brake system and the vacuum brake system are arranged at the bottom of the tank body of the bottomless tank car, due to the heavy weight of the vacuum brake system itself, coupled with the air brake system, the stress on the tank body and the car body will Harsh, there will be safety hazards during operation.

Contents of the invention

The purpose of the utility model is to provide a railway freight car with a vacuum braking system at the end, which solves the technical problems in the background technology that the middle part of the car body bears a heavy load and the car body is under severe stress.

The technical solution of the utility model is:

A railway freight car with a vacuum brake system end arrangement, including a car body 1, a vacuum brake device 2 and an air brake device 3, the special feature is that the vacuum brake device 2 is arranged at one end of the car body 1.

The above-mentioned vacuum brake device 2 includes 2 vacuum brake cylinders 201, 2 double-branch relief valves 202, 2 vacuum air cylinders 203, vacuum hoses 204, an empty-load vehicle conversion plug 205, an empty-load vehicle adjustment shaft 206, The vacuum shaft 207, the hand brake pull rod 208, the vacuum main pipe 209, the cut-off plug 210 and the connecting pipeline 211 are characterized in that all components of the vacuum brake device 2 are collectively arranged together.

The above-mentioned air braking device 3 can also be arranged at the middle part or the other end of the vehicle body 1 .

The utility model has the following advantages:

1. The vacuum brake system is installed at the end of the car body to reduce the load in the middle of the car body.

2. The vacuum braking device adopts a centralized arrangement, which is convenient for maintenance.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a structural schematic diagram of a vacuum braking device;

Fig. 3 is a top view structural diagram of the vacuum brake device.

Explanation of reference numbers:

1-car body, 2-vacuum brake device, 201-vacuum brake cylinder, 202-double branch pipe relief valve, 203-vacuum air cylinder, 204-vacuum hose, 205-empty truck conversion plug, 206-empty Heavy vehicle adjustment shaft, 207-vacuum shaft, 208-hand brake lever, 209-vacuum main pipe, 210-block plug, 211-connecting pipeline, 3-air brake device.

Detailed ways:

Referring to Fig. 1, Fig. 2 and Fig. 3, a railway freight car with a vacuum brake system at the end, including a car body 1, a vacuum brake device 2 and an air brake device 3, the vacuum brake device 2 is arranged on the side of the car body 1 One end, see Figure 2 and Figure 3, the vacuum brake device 2 includes 2 vacuum brake cylinders 201, 2 double-branch relief valves 202, 2 vacuum air cylinders 203, vacuum hose 204, and an empty-load vehicle conversion plug 205 , empty-load car adjustment shaft 206, vacuum shaft 207, hand brake lever 208, vacuum main pipe 209, cut-off plug 210 and connecting pipeline 211, the various components of the vacuum brake device 2 are collectively arranged together, and the air brake device 3 It is arranged in the middle part of the car body 1.

Manipulate the vacuum pump (air extractor) and vacuum brake valve on the locomotive of the vacuum brake train. When the handle of the vacuum brake valve is placed in the relief position, the vacuum pump is connected with the vacuum train pipe, and the vacuum pump sucks the vacuum main pipe through the vacuum hose 204. 209, the air in the vacuum brake cylinder 201 and the vacuum air cylinder 203, the piston rod of the vacuum brake cylinder 201 stretches out due to its own weight, the lever on the vacuum shaft 207 is not stressed, and the vehicle is relieved. When the train tube is connected to the atmosphere, the atmosphere enters the train tube and enters the lower part of the vacuum brake cylinder 201 through the vacuum hose 204 and the connecting pipeline 211, while the upper part of the vacuum brake cylinder 201 is connected with the vacuum air cylinder 203 and still maintains a vacuum. Push the piston rod upward to retract into the vacuum cylinder, and the braking force is transmitted to the hand brake pull rod 208 through the lever on the vacuum shaft 207, and finally transmitted to the foundation braking device so that the vehicle is braked.

The vacuum brake cylinder 201 is directly connected with the double-branch relief valve 202, and the two outlets on the double-branch relief valve 202 lead to the vacuum air cylinder 203, and the other connects to the vacuum main pipe 209 through the connecting branch to form a set of vacuum system. moving mechanism. The two sets of vacuum brake mechanisms are connected to the vacuum brake main pipe through the same connecting branch pipe. In the middle of this branch pipe, there is an empty-load vehicle switching plug door 205. The switching plug door can close one vacuum mechanism, reducing the braking force by half to adapt to Requirements for the braking force required by empty and heavy vehicles; the connection between the branch pipe and the brake main pipe is provided with a cut-off plug 210, which can close two sets of vacuum brake mechanisms. Both ends of the vacuum main pipe 209 are connected with the vacuum hose 204 . The vacuum brake cylinder 201 piston rod is connected with the lever on the vacuum shaft 207, and the braking force is transmitted to the vacuum shaft 207, and the vacuum shaft 207 then transmits the power to the hand brake pull rod 208, and finally to the foundation braking device.

Claims (3)

1. railway truck is arranged in a vacuum brake system end, comprises car body (1), vacuum brake equipment (2) and air brake equipment (3), and it is characterized in that: described vacuum brake equipment (2) is arranged at an end of car body (1).

2. arrange railway truck according to the described vacuum brake system of claim 1 end, described vacuum brake equipment (2) comprises 2 vacuum brake cylinders (201), 2 double branch pipe release valves (202), 2 vacuum reservoirs (203), vacuum hose (204), empty and load change-over cock (205), empty and load adjusting shaft (206), vacuum shaft (207), parking brake lever (208), vacuum is responsible for (209), and cut out cock (210) and connecting line (211) is characterized in that: each parts centralized arrangement of described vacuum brake equipment (2) together.

3. arrange railway truck according to claim 1 or 2 arbitrary described vacuum brake system ends, it is characterized in that: described air brake equipment (3) is arranged at car body (1) middle part or the other end.

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