CN205469096U - Train bogie prevents in region snow device - Google Patents

Abstract

The utility model discloses an anti-snow device in the bogie area of a train, which comprises a first actuator and a second actuator which determine the action sequence according to the running direction of the train. The first actuator and the second actuator are installed on the bottom of the train respectively. The front end plate and the rear end plate of the frame, and the bogie is located between the first actuator and the second actuator, the first actuator includes a telescopic first deflector, and the second actuator includes a telescopic The second deflector of the formula, and the aforementioned first deflector close to the train’s advancing direction and the aforementioned second deflector away from the train’s advancing direction are arranged in the following cooperative relationship, that is, the first deflector is stretched and opened At the same time of the state, the second deflector is in a state of shrinking and closing toward the underframe of the train. The utility model can prevent the train bogie from snow accumulation during operation, ensure the dynamic performance of the bogie, and improve the safety and transportation efficiency of the train running in snowy weather.

Description

Anti-snow device in train bogie area

technical field

The utility model relates to a train auxiliary functional matching device, in particular to a snow prevention device which can prevent 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, and then freeze into ice. After the reciprocating action, finally a large ice cube will be formed on the bogie. The ice cube changes the dynamic characteristics of the bogie, and even restricts the movement of the bogie. Major accidents such as serious derailment may result.

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 train bodies are equipped with rubber capsules on the end plates of the bogie area to improve the flow field structure in the bogie area. This structure improves the entrance conditions to a certain extent and reduces the amount of snow entering the bogie area. There is a certain anti-snow function in actual operation, but for high-speed trains with long distances and large crossings running in heavy snow for a long time, the symmetrical structure of the tail will pocket snow, and eventually there will be serious snow accumulation in the bogie area .

Utility model content

The technical problem to be solved by the utility model is to overcome the deficiencies and defects mentioned in the above background technology, to provide a method to avoid snow accumulation on the train bogie during operation, to ensure the dynamic performance of the bogie, and to improve the performance of the train in snowy weather. The anti-snow device in the bogie area of the train for the safety and transportation efficiency.

In order to solve the above technical problems, the technical solution proposed by the utility model is a snow prevention device in the bogie area of the train. The snow prevention device installed in the bogie area at the bottom of the train includes a function to determine the action sequence according to the running direction of the train. A first actuator and a second actuator, the first actuator and the second actuator are installed on the front end plate and the rear end plate of the train chassis respectively, and the bogie is located between the first actuator and the second actuator Between, the first actuator includes a retractable first deflector, the second actuator includes a retractable second deflector, and will be close to the train forward direction (ie front end) The first deflector and the aforementioned second deflector far away from the train's forward direction are arranged in the following cooperative relationship, that is:

While the first deflector is in an extended and open state, the second deflector is in a contracted and closed state toward the underframe of the train.

The above-mentioned anti-snow device in the bogie area of the train proposed by the utility model can effectively guide the air flow at the bottom of the vehicle through a simple, effective and easy-to-control structure, reducing the amount of snow entering the bogie area and avoiding the snow accumulation of the bogie area. The snow pocket at the end of the area further reduces the probability of snow accumulation in the train bogie area.

In the above-mentioned anti-snow device for the bogie area of the train, preferably, the first deflector is in an extended and open state, specifically means that the first deflector is stretched toward the bogie so that the first deflector is in contact with the front end of the bogie ( That is, the distance between the end near the forward direction of the train) is reduced, and the second deflector is in a contracted and closed state, which specifically means that the second deflector moves closer to the train underframe and is in close contact with the rear end plate. In this preferred solution, the anti-snow device installed at the bottom of the train can guide the air at the bottom of the train in a more targeted manner. On the one hand, try to guide the air outflow at the tail end of the bogie area to reduce the occurrence of snow accumulation.

In the above-mentioned snow prevention device for the bogie area of the train, preferably, the first deflector in the extended and open state is provided with an inclined surface that guides the bottom air to deviate from the rail surface, and the angle between the inclined surface and the horizontal plane is not greater than 90°. The included angle α of °, α is preferably controlled at 30° to 90°, more preferably 30° to 60° (especially preferably 45°); The inclined surface flowing out to the rear of the rear end plate, and the inclined surface forms a β not greater than 90° with the horizontal plane, and the included angle β is preferably controlled within the range of 60°, more preferably 40°～60° (especially preferably 45° ). The distance between the first deflector and the second deflector can be set as L, and the relationship between these dimensional design parameters can be determined by "test and simulation calculation".

In the above preferred technical solution of the utility model, by optimizing the design of the first deflector, the snowflakes entrained in the air can be avoided to the greatest extent from entering the bogie area, thereby reducing the amount of snow entering the bogie area; at the same time , by optimizing the design of the second deflector, the deflector near the rear end of the train is in a retracted state, which can avoid the backflow of the air behind the bogie area to the bogie area to the greatest extent, thereby increasing the snow output as much as possible quantity.

In the above snow prevention device for the bogie area of the train, preferably, both the first deflector and the second deflector are driven by a cylinder-type drive mechanism to stretch and open or shrink and close, and the cylinder-type drive mechanism includes A double-acting cylinder and an air storage tank communicated with the double-acting cylinder, and a double-acting solenoid valve is installed on the air circuit between the double-acting cylinder and the air storage tank. Of course, the double-acting air cylinder can also be replaced by a double-acting hydraulic cylinder. By preferably adopting the aforementioned cylinder-type drive mechanism, the synergistic effect of the first deflector and the second deflector can be better realized under the premise of maintaining low cost and simplified structure, and snow accumulation on the bogie can be avoided; and, by A double-acting solenoid valve is provided to better adapt to the forward and reverse movement of the train. For example, when the train is running forward, the first deflector is stretched and opened, while the second deflector is contracted and closed; When the train is running in reverse, only the simple action of the double-acting solenoid valve can make the opened first deflector be retracted to become the second deflector in the reverse running state, and at the same time make the retracted first deflector The second deflector is stretched and opened to become the first deflector in the reverse running state.

In the above snow prevention device for the train bogie area, preferably, both the first deflector and the second deflector are cavity-type structures that can be rotated and extended around a fixed end, and one side of the cavity-type structure The installation frame is installed in cooperation with the bottom structure of the train, and the end surface on the other side of the cavity structure is connected with a driving mechanism that drives it to stretch and open or shrink and close. When the above-mentioned cylinder-type drive mechanism is preferably used as the drive mechanism, the end faces are correspondingly connected to the double-acting cylinder. As a further improvement, a rib frame is added to the end face of the cavity structure, and the driving mechanism (such as a double-acting cylinder of the cylinder type driving mechanism) is connected to the rib frame, which can better ensure the Under the action of the double-acting cylinder, the end surface will not be deformed, while the other surfaces can be deformed rapidly to achieve stretching, opening or shrinking and closing. As a further improvement, the installation frame of the cavity-type structure is connected to the end surface through a fold-shaped expansion and contraction part, and the expansion and contraction part is mainly composed of cold-resistant, impact-resistant, lightweight rubber material or fiber material, such as natural rubber and Butadiene rubber compound has the characteristics of high elasticity, impact resistance, cold resistance, etc., and can be used normally in the environment of minus 40 °C.

In the above snow prevention device for the bogie area of the train, preferably, the cavity structure is only open on one side of the installation frame, and forms a closed cavity with the bottom structure of the train. In this way, when the first deflector is stretched and opened, snowflakes can be prevented from flying into the cavity structure, thereby ensuring the normal operation of the actuator.

Compared with the prior art, the utility model has the advantages that: the utility model provides a snow prevention device specially used to prevent snow accumulation in the bogie area of trains (especially high-speed trains). The air flow prevents snow accumulation on the train bogie during operation, ensures that the dynamic performance of the bogie will not deteriorate due to snow accumulation, and improves the safety and transportation efficiency of high-speed trains in snowy weather. In the preferred design scheme, the anti-snow device of the present invention 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 greatly reduce the snow accumulation and icing on the bogie . In addition, in a more preferred design scheme, the anti-snow device of the present invention can also automatically change with the change of the moving direction of the train, and can automatically expand and contract with the running direction of the train, reliable in operation, simple in structure, and maintenance-free.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present utility model. Those skilled in the art can also obtain other drawings based on these drawings without any creative work.

Fig. 1 is a schematic structural view of the second deflector in the embodiment of the present invention when it is shrunk and closed.

Fig. 2 is a schematic diagram of the structure of the first deflector in the embodiment of the present invention when it is stretched and opened.

Fig. 3 is a schematic diagram of the installation structure of the first deflector and the second deflector in the bogie area in the embodiment of the utility model.

Fig. 4 is a schematic diagram of the working principle of the anti-snow device in the embodiment of the present invention when the vehicle is driving to the right.

Fig. 5 is a schematic diagram of the installation of the anti-snow device on the vehicle in the embodiment of the present invention (perspective view, bogie is omitted).

illustration:

1. Second deflector; 2. Mounting seat; 3. Pin shaft; 4. Double-acting cylinder; 5. Pin shaft of deflector; , installation frame; 10, wheel set; 11, rear end plate; 12, first double-acting solenoid valve; 13, gas storage tank; 14, second double-acting solenoid valve; 15, rib frame; 16, front end plate; 17, bogie; 18, first deflector; 19, airtight cavity.

detailed description

In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively and in detail below in conjunction with the accompanying drawings and preferred embodiments, but the protection scope of the utility model is not limited to the following specific embodiments.

It should be noted that when an element is described as "fixed, affixed, connected or communicated with" another element, it may be directly fixed, affixed, connected or communicated with another element , can also be indirectly fixed, affixed, connected or communicated with another element through other intermediate connectors.

Unless otherwise defined, all technical terms used hereinafter have the same meanings as commonly understood by those skilled in the art. The terminology used herein is only for the purpose of describing specific embodiments, and is not intended to limit the protection scope of the present utility model.

Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present invention can be purchased from the market or prepared by existing methods.

Example:

A kind of anti-snow device in the bogie area of the train bogie area of the utility model that can prevent snow accumulation in the bogie area of the high-speed train as shown in Figures 1-5. The anti-snow device is installed on the bogie area at the bottom of the train On the front and rear end plates, the anti-snow device includes a drive mechanism, and a first actuator and a second actuator that determine the action sequence according to the running direction of the train. The first actuator and the second actuator are respectively installed on the bottom of the train. The front end plate 16 and the rear end plate 11 of the frame, and the bogie frame 17 is located between the first actuator and the second actuator (see Figure 5).

In this embodiment, the above-mentioned first actuator includes a retractable first deflector 18 (see FIG. 2 ), while the second actuator includes a retractable second deflector 1 (see FIG. 2 ). 1), and will be set as the aforementioned first deflector 18 close to the train advancing direction, and the setting away from the train advancing direction is the aforementioned second deflector 1 (if the train turns, the first deflector and the second deflector The deflectors can be exchanged), the first deflector 18 and the second deflector 1 are set to the following cooperation relationship, that is, when the train advances, the first deflector 18 is stretched and opened toward the bogie 17. , the second deflector 1 is in a shrinking and closing state toward the train underframe.

As shown in FIG. 4 , in this embodiment, the first deflector 18 is stretched and opened toward the bogie 17. It means that the first deflector 18 is stretched toward the bogie 17 so that the first deflector 18 and the bogie 17 The distance between the front ends (i.e., the end close to the forward direction of the train) is reduced, that is, the first deflector 18 approaches the wheel pair 10 ahead, and the first deflector 18 in an extended and open state is provided with a guide to guide the bottom air to the rail surface. Deviated inclined surface, and the angle α between the inclined surface and the horizontal plane is controlled at 45°. The state that the second deflector 1 is shrinking toward the underframe of the train means that the second deflector 1 is moved toward the underframe of the train and is close to the rear end plate 11, that is, the second deflector 1 is gradually moving away from the wheel set 10 at the rear; The second deflector 1 in the contracted and closed state is provided with an inclined surface that guides the air in the bogie area to flow out behind the rear end plate 11 , and the angle β between the inclined surface and the horizontal plane is controlled at 45°. The anti-snow device of this embodiment can guide the air at the bottom of the train in a more targeted manner. Guide the air to flow out as far as possible, avoid the backflow of the air behind the bogie area to the bogie area, and reduce the occurrence of snow accumulation.

As shown in Fig. 1, Fig. 2, and Fig. 3, the first deflector 18 and the second deflector 1 in this embodiment are both cavity-type structures (similar to fan-shaped) that can be rotated and extended around a fixed end. The cavity structure includes a mounting frame 9 and an end face 8, and the mounting frame 9 and the end face 8 are connected by a wrinkled telescopic part 7. The telescopic part 7 in this embodiment is mainly made of a cold-resistant, impact-resistant, lightweight rubber bag Material composition. The mounting frame 9 positioned on one side of the cavity-type structure is installed in cooperation with the bottom structure of the train through a rectangular frame, and a reinforcing rib frame 15 is additionally installed on the end face 8 positioned at the other side of the cavity-type structure, and the reinforcing rib frame 15 is connected with a drive cavity The body structure is connected to the driving mechanism that stretches, opens or shrinks (see Figure 2), which can better ensure that the end surface will not be deformed under the action of the driving mechanism, while other surfaces can be deformed quickly to achieve stretching, opening or contracting close. In this embodiment, the cavity structure of the first deflector 18 and the second deflector 1 is a closed cavity 19, and only opens on one side of the mounting frame 9 (see FIG. 2 ), through which the mounting frame 9 Forms a seal with the underbody structure of the train. In this way, snowflakes can be prevented from being sucked into the actuator when the actuator (that is, the first actuator and the second actuator) moves, and stable operation of the actuator can be ensured.

As shown in Figure 4, the driving mechanism in this embodiment adopts a cylinder-type driving mechanism, that is, the first deflector 18 and the second deflector 1 are driven by a cylinder-type driving mechanism to stretch and open or shrink and close. The cylinder drive mechanism includes a double-acting cylinder 4 and an air storage tank 13 connected to the double-acting cylinder 4, and a double-acting solenoid valve is arranged on the gas path between the air storage tank 13 and each group of double-acting cylinders 4 ; Wherein, the first double-acting electromagnetic valve 12 is arranged on the air path between the gas storage tank 13 and the double-acting cylinder 4 that drives the first deflector 18, and the gas storage tank 13 and the second deflector 1 that drives the A second double-acting solenoid valve 14 is disposed on the gas path between the double-acting cylinders 4 . One end of the double-acting cylinder 4 that drives the first deflector 18 is fixed on the train chassis beam (not shown) in the bogie area through the mounting seat 2 and the pin 3, and the other end is passed through the pin of the deflector. 5 and deflector seat 6 are fixedly connected to the end surface 8 of the first deflector 18; one end of the double-acting cylinder 4 driving the second deflector 1 is fixed on the bogie area through the mounting seat 2 and the pin shaft 3 On the rear end plate 11 , the other end is affixed to the end face 8 of the second deflector 1 through the deflector pin shaft 5 and the deflector seat 6 . By adopting the aforementioned cylinder-type drive mechanism, the synergy between the first deflector 18 and the second deflector 1 can be better realized to avoid snow accumulation on the bogie under the premise of maintaining low cost and simplifying the structure; and, By setting the double-acting electromagnetic valve, it can better adapt to the movement of the train in the forward and reverse directions.

In the anti-snow device for the train bogie area of the present embodiment, the height of the first deflector 18 and the second deflector 1, the angle α between the inclined surface of the first deflector 18 and the horizontal plane, and the height of the second deflector The angle β between the inclined surface of the plate 1 and the horizontal plane, the length of the bogie area, etc., can be determined by experiments or simulation calculations.

It can be seen from the above that in specific installation applications, it is best to install a set of snow protection devices of the present invention in each bogie area, and each set of snow protection devices includes two actuators (i.e. the above-mentioned first execution mechanism). mechanism and the second actuator), each actuator includes a set of double-acting cylinders and a double-acting solenoid valve, and its power shares the high-pressure air on the vehicle.

The working principle of the anti-snow device in the train bogie region of the present embodiment is as shown in Figure 4. When the train is running to the right, the high-pressure air in the air storage tank 13 passes through the 1-position end of the second double-acting solenoid valve 14, Inflate the 1-position end of the double-acting cylinder 4 at the rear end of the bogie area, which drives the double-acting cylinder 4 at the rear end to shrink, and then drives the second deflector 1 to shrink and close to the rear end plate 11; at the same time, the gas storage The high-pressure air in the tank 13 flows through the 2-position end of the first double-acting solenoid valve 12 to inflate the 2-position end of the double-acting cylinder 4 at the front end of the bogie area, and the double-acting air cylinder 4 at the front end of the bogie area protrudes , and then push the first deflector 18 to stretch and open towards the bogie 17, so that the distance between the first deflector 18 and the front end of the bogie 17 is reduced; the inclined surface formed by the stretching and opening of the first deflector 18 forces the front bottom The airflow deviates from the rail surface to prevent the airflow from entering the bogie area. Because the airflow entrains snowflakes, the amount of snow entering the bogie area is also reduced; while the second deflector 1 is in a state of contraction and closeness, and the inclined surface formed by it When the bottom airflow scours to the second deflector 1 at the rear, the airflow still moves to the rear to prevent the airflow from returning to the bogie area. Since the airflow entrains snowflakes, it also reduces the snowflakes entering the bogie area from the tail; the first guide The combined effect of the flow plate 18 and the second flow guide plate 1 greatly reduces the snow accumulation in the bogie area. When the train runs in reverse, the second double-acting solenoid valve 14 is switched to the 2-position end, and the first double-acting solenoid valve 12 is switched to the 1-position end, so that the double-acting cylinders 4 on both sides of the bogie 17 produce the opposite action, but the working principle is exactly the same as when the train is moving forward, which can also reduce the occurrence of snow accumulation. When the train entered the garage or parked for a long time, the first deflector 18 and the second deflector 1 on both sides of the bogie 17 were all retracted under the action of the double-acting cylinder 4, which can make it return to the non-working state. It can be seen that, by installing and applying the anti-snow device in the bogie region of the utility model, the running safety of the train can be guaranteed to the greatest extent possible under the premise of not running at reduced speed.

Claims (9)

1. a train bogie region anti-accumulated snow device, it is characterised in that be installed on the described of bogie region bottom train and prevent Accumulated snow device includes the first actuator and the second actuator determining sequence of movement according to current of traffic, and described first Actuator and the second actuator are separately mounted on front end-plate and the end plate of train underframe, and bogie is positioned at the first execution Between mechanism and the second actuator, described first actuator includes the first deflector of an extension type, and described second holds Row mechanism includes the second deflector of an extension type, and will be close to aforementioned first deflector of train direction of advance and away from row Aforementioned second deflector of car direction of advance is arranged to following matching relationship, it may be assumed that

Described first deflector in stretching while open mode, described second deflector towards train underframe in shrinking closed configuration.

Train bogie region the most according to claim 1 anti-accumulated snow device, it is characterised in that described first deflector in Stretch open mode to specifically refer to make the spacing between the first deflector and bogie front end contract after the first deflector stretches towards bogie Little, described second deflector in shrink closed configuration specifically refer to the second deflector close up towards described train underframe and be adjacent to described after End plate.

Train bogie region the most according to claim 1 anti-accumulated snow device, it is characterised in that described open shape in stretching, extension First deflector of state is provided with the inclined plane that a guiding bottom air deviates to rail level, and this inclined plane is little with the horizontal one In the angle α of 90 °；Described the second deflector in contraction closed configuration is provided with the air in a guiding bogie region to described The inclined plane that end plate rear is flowed out, and this inclined plane is with the horizontal an angle β being not more than 90 °.

Train bogie region the most according to claim 3 anti-accumulated snow device, it is characterised in that the angular range of described α Controlling at 30 °～60 °, the angular range of described β controls at 40 °～60 °.

5. according to the train bogie region anti-accumulated snow device according to any one of claim 1-4, it is characterised in that described One deflector and the second deflector are driven it to stretch to open or shrink and close up by air-cylinder type drive mechanism, and described air-cylinder type drives machine Structure includes double-acting type cylinder and the air accumulator connected with double-acting type cylinder, and the gas between double-acting type cylinder and air accumulator Double-acting type electromagnetic valve is installed on road.

6. according to the train bogie region anti-accumulated snow device according to any one of claim 1-4, it is characterised in that described One deflector and the second deflector are the cavity type structure that rubber bag tank is made, the installation frame of this cavity type structure side and train Polycrystalline substance coordinates to be installed, and the end face of this cavity type structure opposite side and drives its stretching, extension open or shrink the drive mechanism closed up It is connected.

Train bogie region the most according to claim 6 anti-accumulated snow device, it is characterised in that described drive mechanism is one Air-cylinder type drive mechanism, this air-cylinder type drive mechanism drives described first deflector or the stretching, extension of the second deflector to open or shrink and close up, Described air-cylinder type drive mechanism includes double-acting type cylinder and the air accumulator connected with double-acting type cylinder, and double-acting type cylinder And double-acting type electromagnetic valve is installed in the gas circuit between air accumulator；A reinforcement frame is added on the end face of described cavity type structure Frame, and double-acting type cylinder is connected on this reinforcement framework.

Train bogie region the most according to claim 6 anti-accumulated snow device, it is characterised in that described cavity type structure Installing and be connected by the pars contractilis of fold shape between frame and end face, this pars contractilis is mainly by resisting high and cold, impact resistance, the rubber of lightweight Glue material or fibrous material are constituted.

Train bogie region the most according to claim 6 anti-accumulated snow device, it is characterised in that described cavity type structure is only One side opening of frame is being installed, and is forming hermetic type cavity with train polycrystalline substance.