CN105216826A - The anti-accumulated snow device in high-speed train bogie region - Google Patents

Abstract

The invention discloses the anti-accumulated snow device in a kind of high-speed train bogie region.The actuating unit of described anti-accumulated snow device comprises deflecting plate, mount pad, bearing pin, double-acting type cylinder, deflecting plate bearing pin and water conservancy diversion panel seat, and deflecting plate is towards the side of bogie truck and double-acting type cylinders, and opposite side is connected with train underframe.Double-acting type cylinder one end is connected with car body, and the other end is connected on deflecting plate.Control power and adopt on-board high-voltage air, adopt the action of double-acting type solenoid control double-acting type cylinder.Deflecting plate can produce distortion as required, and when the vehicle is running forward, the air deflector in turn-around zone front is in open mode, and rear air deflector in collapsed state, thus makes bottom airflow without bogie truck region.When vehicle operating direction is reverse, two deflecting plates all produce action, and the air deflector of packing up is in open mode, and the air deflector opened is in extended state.

Description

Anti-snow device in bogie area of high-speed train

technical field

The invention relates to a mechanical device capable of preventing snow accumulation in the bogie region of a high-speed train during heavy snow operation in winter.

Background technique

When high-speed trains are running in heavy snow weather in alpine regions, the snow on the line will roll up due to the influence of the turbulence in the bogie area and accumulate on the bogie, and the snow will generate heat on the bogie. Under the action of braking, etc., it will melt into water, then freeze into ice, reciprocate, and finally form larger ice cubes on the bogie. The ice cubes change the dynamic characteristics of the bogie, and even restrict the movement of the bogie. Can cause serious derailment and other major accidents.

Some car bodies are equipped with fixed rubber capsules to improve the flow field structure in the bogie area.

The above structure improves the entry conditions and reduces the amount of snow entering the bogie area, but the symmetrical structure at the rear will pocket the snow and eventually cause the entire bogie to accumulate snow.

The anti-snow device in the bogie area of the high-speed train of the present invention can effectively guide the air flow at the bottom of the vehicle, reduce the amount of snow entering the bogie area, avoid snow pockets at the tail of the bogie area, and reduce the occurrence of snow accumulation.

Contents of the invention

The invention provides a mechanical device specially used for preventing snow accumulation on the bogie of high-speed trains. The device can guide the air flow at the bottom of the train and automatically change it with the change of the moving direction of the train, so as to avoid the bogie of the moving train from running Snow accumulation occurs in the middle, ensuring that the dynamic performance of the bogie will not deteriorate due to snow accumulation, and improving the safety and transportation efficiency of high-speed trains in snowy weather.

At present, most high-speed trains are not equipped with anti-snow and icing devices. When running in snowy weather in winter, snow and icing on bogies is more serious. Some high-speed trains are equipped with rubber capsules on the end plates of the bogie area, which have a certain anti-snow function in actual operation. Severe snow conditions in the area. In view of the above problems, the mechanical device for preventing high-speed train bogie from snow accumulation of the present invention is installed at the bottom of the high-speed train to guide the air at the bottom of the train. On the one hand, try to guide the air to flow out at the tail end of the bogie area to avoid air backflow in the bogie area and reduce the occurrence of snow accumulation.

The present invention realizes through following technical scheme:

A mechanical device that can prevent snow accumulation in the bogie area of a high-speed train during operation. The mechanical device is installed on the end plates of the front and rear bottom frames of the bogie at the bottom of the high-speed train. The snow accumulation device includes two deflectors, four double-acting cylinders, two solenoid valves, and the power is the high-pressure air on the vehicle. The sequence of actions of each set of anti-snow devices is the same. When the train is running forward, the anti-snow device in each bogie area is in the open position near the front deflector, forcing the airflow at the bottom of the front to deviate from the rail surface, preventing the airflow from entering the bogie area, because snowflakes are entrained in the airflow , thus also reducing the amount of snow entering the bogie area; each bogie area snow protection device close to the rear deflector is in the stowed position, allowing the airflow to still move rearward when the bottom airflow scours the rear deflector , to avoid the backflow of the airflow to the bogie area, and because the airflow entrains snowflakes, it also reduces the snowflakes entering the bogie area from the tail. The front and rear deflectors work together to reduce snow accumulation in the bogie area.

Preferably, when the train runs in the reverse direction, the double-acting electromagnetic valve acts, so that the opened deflector is retracted, and the retracted deflector is opened.

Preferably, the device is installed on the front and rear sides of the bogie area at the bottom of the vehicle, wherein one end of the double-acting cylinder is fixed on the car body and the other end is fixed on the deflector; the side of the deflector near the bottom cover needs to be connected with the vehicle bottom structure Cooperating with the installation, the side of the deflector close to the bogie is connected with the double-acting cylinder.

Preferably, the heights of the two deflectors, the opening angle of the front deflector, and the inclination angle of the rear deflector are related to the length of the bogie area, and the optimal parameters for snow protection can be determined by experiments or simulation calculations.

Preferably, the air deflector and the bottom cover of the train jointly form a closed cavity to prevent snowflakes from being sucked into the cavity at the bottom of the train when the mechanism moves.

Preferably, the deflector and the deflector are made of cold-resistant, impact-resistant, lightweight rubber or fiber material, and the end face facing the bogie is equipped with reinforcing ribs, and the end face does not deform under the action of the cylinder, while the other faces rapidly deform. out of shape.

The beneficial effect of the invention is that it can not only reduce the amount of snow entering the bogie area from the front end of the bogie, but also reduce the return flow at the tail of the bogie area, and can greatly reduce snow accumulation and icing on the bogie. At the same time, the device can automatically expand and contract with the running direction of the train, and is reliable in operation and maintenance-free. When the high-speed train installed with the anti-snow device runs in heavy snow in winter, the dynamic performance of the bogie will not change basically because the bogie will not accumulate snow, so it does not need to slow down and run at the same time to ensure the safety of the train sex.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a schematic structural view of the deflector of the present invention when it is retracted.

Fig. 2 is a structural schematic diagram of the deflector of the present invention when it is opened.

Fig. 3 is a schematic diagram of the installation structure of the present invention on the bogie.

Fig. 4 is a schematic diagram of the working principle of the present invention when the vehicle is traveling to the right.

Fig. 5 is a schematic diagram of the installation of the present invention on a vehicle.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be fully described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are some, but not all, embodiments of the invention.

As shown in Figure 1, the high-speed train bogie area anti-snow device provided by the present invention includes a deflector 1, a mounting seat 2, a pin 3, a double-acting cylinder 4, a deflector pin 5 and a deflector seat 6. Wherein the mounting seat 2 is fixed on the end plates 8 of the front and rear chassis of the vehicle bogie. One end of the double-acting cylinder 4 is connected to the mounting seat 2 through the pin shaft 3 , and the other end is connected to the deflector seat 6 through the deflector pin shaft 5 . The double-acting cylinder 4 can also be a double-acting hydraulic oil cylinder.

As shown in FIG. 2 and FIG. 3 , the deflector 1 is composed of a rubber bag 7 , a metal bracket 8 and a mounting frame 9 . The deflector seat 6 is bolted or welded on the metal bracket 8 . The deflector 1 can also be made of cold-resistant, impact-resistant, lightweight rubber or fiber material, and the end face facing the bogie is equipped with reinforcing ribs, so that the end face will not be deformed under the action of the double-acting cylinder 4, while other faces Deformation occurs rapidly. The installation height of the deflector 1, the opening angle of the deflector 1 and the inclination angle of the deflector 1 are related to the length of the bogie area, and the optimal parameters are determined by experiments or simulation calculations. The mounting frame 9 is mounted on the end plate 11 outside the bogie at the bottom of the vehicle by screw connection.

A set of anti-snow devices are respectively installed on the end plates 11 on both sides of the bogie, and the action sequence of the deflector 1 is determined according to the running direction of the train. The deflector 1 and the bottom cover of the train jointly form a closed cavity, which prevents snowflakes from being sucked into the cavity at the bottom of the train when the actuator moves.

As shown in Figure 4, when the vehicle is running to the right, the high-pressure air in the air storage tank 13 passes through the 1-position end of the double-acting solenoid valve 14 to inflate the 1-position end of the double-acting cylinder 4 at the rear end of the bogie, and the steering The double-acting cylinder 4 at the rear end of the frame shrinks, which drives the deflector 1 at the rear end of the bogie to shrink; at the same time, the high-pressure air in the air storage tank 13 flows through the 2-position end of the double-acting solenoid valve 12, and supplies the double-acting solenoid valve 12 at the front end of the bogie. The 2-position end of the action cylinder 4 is inflated, and the double-action cylinder 4 at the front end of the bogie stretches out, pushing the deflector 1 at the front end of the bogie to open, and the air flow does not pass through the bogie area, thereby reducing the occurrence of snow accumulation.

When the train runs in reverse, the double-acting solenoid valve 14 is switched to the 2-position end, and the double-acting solenoid valve 12 is switched to the 1-position end, so that the double-acting cylinder 4 on both sides of the bogie produces opposite actions, and the The deflector 1 is opened, and the deflector 1 at the front end of the bogie is closed, so that the airflow does not pass through the bogie area, thereby reducing the occurrence of snow accumulation.

As shown in Figure 5, 4 sets of anti-snow devices are installed on each car, which are respectively installed in the front and rear bogie areas of the train. The deflector 11 close to the front end of the train is in an open state, so that the bottom air deviates from the rail surface to avoid air The snowflakes entrained in the middle enter the bogie area, thereby reducing the amount of snow entering. The deflector 11 close to the rear end of the train is in a retracted state, guiding the air in the bogie area to flow out from the rear of the bogie area smoothly, and avoiding the direction of air flow behind the bogie area. Recirculation in the bogie area for increased snow yield.

When the train enters the garage or parks for a long time, the deflectors 1 on both sides of the bogie are retracted under the action of the double-acting cylinder 4 and return to the non-working state.

Claims (7)

1. A high-speed train bogie area anti-snow device, comprising two actuators, said actuators are installed on the end plates of the high-speed train bottom bogie front and rear underframes, each bogie area is respectively adorned a set, according to The running direction of the train determines the action sequence, and it is characterized in that: the executive mechanism includes a deflector, a mounting seat, a pin shaft, a double-acting cylinder, a deflector pin shaft and a deflector seat, and the deflector near the front end of the train In the open state, the air at the bottom deviates from the rail surface to prevent the snowflakes entrained in the air from entering the bogie area, thereby reducing the amount of snow entering. The outflow from the rear of the bogie area avoids the backflow of the airflow behind the bogie area to the bogie area, thereby increasing the snow output. 2. A high-speed train bogie area anti-snow device according to claim 1, characterized in that: the device also includes a double-acting solenoid valve, the guide plate close to the front end of the train and the deflector close to the train The deflectors at the rear end work together to avoid snow accumulation on the bogie. When the train runs in reverse, the double-acting solenoid valve acts to retract the opened deflectors and open the retracted deflectors. 3. A high-speed train bogie area anti-snow device according to claim 1, characterized in that: one end of the double-acting cylinder is fixed on the car body, and the other end is fixed on the deflector; The side of the deflector close to the bottom cover is fitted with the vehicle bottom structure, and the side of the deflector close to the bogie is connected to the double-acting cylinder. 4. A high-speed train bogie area anti-snow device according to claim 1, characterized in that: the height of the two deflectors, the opening angle of the deflectors at the front end of the bogie, the height of the bogie The inclination angle of the deflector at the rear end is related to the length of the bogie area, and the optimal parameters are determined by experiments or simulation calculations. 5. A high-speed train bogie area anti-snow device according to claim 1, characterized in that: the deflector and the bottom cover of the train together form a closed cavity to avoid snow inhalation when the actuator moves Inside the cavity at the bottom of the train. 6. A high-speed train bogie area anti-snow device according to claim 1, characterized in that: the deflector is made of high cold resistance, impact resistance, light rubber or fiber material, facing the bogie Adding reinforcing ribs to the end surface can prevent deformation of the end surface under the action of the double-acting cylinder, while other surfaces rapidly deform. 7. A high-speed train bogie area anti-snow device according to claim 1, characterized in that: when the train enters the garage or parks for a long time, the deflectors on both sides of the bogie are under the action of the double-acting cylinder Put away, return to non-working condition.