CN112960010B - Electromagnetic speed reducer for train - Google Patents

Abstract

The invention relates to an electromagnetic deceleration device for a train, which is used for deceleration and parking when a high-speed rail enters a station. The deceleration device is designed to include: a brake landing gear rigidly connected to the bottom of the train and a magnetic field force for generating a magnetic field force with the brake bracket of electromagnetic rails. Compared with the existing train deceleration device, the present invention has the advantages of greatly shortening the train stop time, occupying less vehicle space, and high braking efficiency.

Description

A train electromagnetic deceleration device

technical field

The invention relates to the technical field of high-speed trains, in particular to a train electromagnetic deceleration device.

Background technique

The improvement of high-speed rail operation efficiency has always been the focus of attention. Taking the Beijing-Shanghai high-speed rail as an example, the original design capacity was to operate 180 pairs of high-speed trains with a speed of 350-380 kilometers per hour per day, and two-way transport of 160 million passengers a year. After the deceleration, only more than 90 pairs of trains run every day, of which more than 20 pairs are trains with a speed of 250 kilometers per hour. Although it has achieved profitability in 3 years, the effect is not as good as expected. After the speed increase, the railway will increase the transportation capacity, accelerate the flow of people and logistics in the areas along the line, and play a huge role in driving my country's economic development. With the recovery of high-speed rail speed, the value of "X" in the "X hours" economic circle built by high-speed rail will become smaller and smaller, which can promote the construction of urban circles and economic circles, and will also play a role in improving the level of urbanization and rational allocation of resources. important role. In addition, after the speed increase of high-speed rail, although railway energy consumption and service costs have increased, compared with the increase in passenger flow, the benefits will be significantly improved, which is of great benefit to the development of the railway itself.

But today, the improvement of the speed of high-speed trains to improve the efficiency of train operation has entered the top, but the shortening of the entry time of high-speed trains to improve the efficiency of train operation is today's need and inevitable development trend. Today's train braking mainly relies on the upper part of the train tail. Resistor, the engine of the train stops working when entering the station, and the kinetic energy of the train is converted into electrical energy through the reverse rotation of the motor to generate heat energy consumption through the resistance on the upper part of the tail car. Because this method is consumed by converting kinetic energy into electrical energy, the consumption of kinetic energy will be reduced as the vehicle speed decreases, so the braking efficiency needs to be improved. It is envisaged that if a train starts to brake 30 minutes before entering the station, compared with 15 minutes or even shorter braking time, the operational efficiency of China's railway network will be greatly increased, which will be an important contribution to the country's transportation industry. Great benefit. Therefore, there is an urgent need for a device that consumes stable kinetic energy of the train and has high efficiency to solve this problem.

In view of the above situation, the patent of the present invention proposes a train electromagnetic deceleration device after mechanical calculation and finite element simulation analysis. The patent of the invention is more in line with the energy and mechanical characteristics, greatly improves the braking work of the train, and can completely refit the existing train to realize the low-cost transformation of the train to realize the function of the device.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a train electromagnetic deceleration device in order to overcome the above-mentioned defects of the prior art.

The object of the present invention can be realized through the following technical solutions:

A train electromagnetic deceleration device, the device comprises:

Brake landing gear, rigidly connected to the bottom of the train, used to slow down and stop when the high-speed rail enters the station;

The electromagnetic guide rail is used to cooperate with the braking landing gear to generate a magnetic field force that makes the high-speed rail decelerate and stop.

Further, the brake landing gear includes an upper bracket and a lower bracket that are connected to each other, the upper bracket is connected to the bottom of the train, and the bottom of the lower bracket is connected to the armature.

Further, a middle support block is provided on the lower bracket, and the middle support block is connected with one end of the front folding frame.

Further, the other ends of the front folding frame are respectively connected with the hydraulic rod and the rear folding frame.

Further, the hydraulic rod and the rear folding frame are both connected with the upper bracket.

Further, the upper bracket is provided with a frame body for receiving and placing the lower bracket.

Further, the electromagnetic guide rail is provided with a first guide rail wall and a second guide rail wall, and the height of the first guide rail wall and the second guide rail wall relative to the ground is h, and h>0.

Further, the bottom of the electromagnetic guide rail is provided with a bottom end protrusion of the guide rail for preventing the accumulation of gravel.

Further, the cross-sectional shape of the protrusion at the bottom end of the guide rail is a triangle.

Further, the shape of the frame body is a rectangle.

Compared with the prior art, the present invention has the following advantages:

1. The patent of the present invention uses electric current to generate electromagnetic force. At this time, the electromagnetic force acts as the braking force of the train, so the magnitude of the braking force of the train is adjusted by controlling the magnitude of the current. And then achieve the problem of controlling train braking.

2. The patent of the present invention can adjust the size of the upper bracket according to different train models, and then refit the train is very convenient and effective.

3. The patent of the present invention greatly shortens the stopping efficiency of the train, thereby improving the efficiency of the train operation.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore do not It should be regarded as a limitation of the scope, and for those of ordinary skill in the art, other related drawings can also be obtained according to these drawings without any creative effort.

Figure 1 is a schematic diagram of the loading structure of the brake landing gear.

Figure 2 is a schematic diagram of the structure of the brake landing gear.

FIG. 3 is a schematic diagram of the present invention.

FIG. 4 is a schematic diagram of the track structure.

FIG. 5 is a schematic diagram of the structure of the guide rail.

Figure 6 is a three view of the guide rail structure.

In the figure, 1 is the upper bracket, 2 is the middle support block, 3 is the lower bracket, 4 is the armature, 5 is the front folding frame, 6 is the rear folding frame, 7 is the hydraulic rod, 8 is the first rail, and 9 is the first Two rails, 10 is an electromagnetic guide rail, 11 is a protrusion at the bottom end of the guide rail, 12 is a first guide rail wall, and 13 is a second guide rail wall.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Thus, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of the invention is usually placed in use, only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying The device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first", "second", "third", etc. are only used to differentiate the description and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that a component is required to be absolutely horizontal or overhang, but rather may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal than "vertical", it does not mean that the structure must be completely horizontal, but can be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise expressly specified and limited, the terms "arranged", "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, It can also be a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

As shown in Figure 4, the patent of the present invention relates to a train electromagnetic deceleration device, which is used for deceleration and parking when a high-speed rail enters a station. The deceleration device is designed to include: a brake landing gear that is rigidly connected to the bottom of the train, as shown in Figure 2 As shown, it is composed of an electromagnetic guide rail 10 for generating magnetic force with the brake bracket.

First of all, a train electromagnetic deceleration device is used for the stop braking of high-speed trains. The device consists of a brake landing gear rigidly connected to the bottom of the vehicle, as shown in Figure 2, and an electromagnetic guide rail 10 laid in the middle of the rail. composition.

The first is the brake landing gear: it is divided into an upper bracket 1 and a lower bracket 3. The upper bracket 1 is directly and rigidly connected to the bottom of the train. As shown in FIG. 1 , the lower end of the lower bracket 3 is provided with an armature 4 . When the train enters the station, the hydraulic rod 7 in the brake landing gear unfolds the front and rear folding frames 5 and 6, and then pushes out the lower bracket 3. At this time, the lower armature 4 of the lower bracket 3 penetrates into the electromagnetic guide rail 10.

As shown in Figure 3: It adopts the electromagnetic reverse thrust generated by the principle of electromagnetic action to realize the braking of the train. Because the electromagnetic driving force is proportional to the square of the current, a strong current I will be input into the electromagnetic guide rail in the station, and a large enough thrust can be generated in it, so that the incoming train can obtain a high braking force, thereby ensuring the rapid braking of the high-speed train. Its basic principle is shown in the figure. When the switch S is turned on, the power supply G passes through the rail, the armature and the rail, forming a current loop; the current I generates a magnetic field B, which produces a force F on the electric charge flowing in the magnetic field. Since the guide rail is fixed on the foundation, it is a rigid body and cannot move, and the armature is a movable body, so the armature will generate a corresponding braking force in the opposite direction in the electromagnetic guide rail.

As shown in FIG. 5 and FIG. 6 , the two walls of the electromagnetic guide rail 10 , namely the first and second guide rail walls 12 and 13 have a certain height h from the ground, and the bottom of the electromagnetic guide rail has a triangular guide rail bottom end protrusion 11 , thereby It is guaranteed that some gravel blocks will be automatically discharged to the outside of the guide rail under the action of the h ground clearance and the triangular protrusion after entering the electromagnetic guide rail, so as not to accumulate.

Therefore, the braking force can be adjusted by the size of the current supplied in the station and the use of the current will be regulated by the national standard. At present, there is no corresponding standard, so the forced power can be provided to achieve the purpose of fast braking compared with the existing train braking.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Any person skilled in the art can easily think of various equivalents within the technical scope disclosed by the present invention. Modifications or substitutions should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (3)

1. a train electromagnetic deceleration device, is characterized in that, this device comprises: The brake landing gear is rigidly connected to the bottom of the train, and is used for decelerating and parking when the high-speed rail enters the station, the brake landing gear comprises an upper bracket (1) and a lower bracket (3) connected to each other, the upper bracket (1) ) is connected to the bottom of the train, the bottom of the lower bracket (3) is connected with the armature (4), the lower bracket (3) is provided with a middle support block (2), the middle support block (2) Connected with one end of the front folding frame (5), the other end of the front folding frame (5) is respectively connected with the hydraulic rod (7) and the rear folding frame (6), the hydraulic rod and the rear folding frame (6) are all connected with the upper bracket (1); An electromagnetic guide rail (10), used for cooperating with the brake landing gear to generate a magnetic field force for decelerating and stopping the high-speed rail, the electromagnetic guide rail (10) is provided with a first guide rail wall (12) and a second guide rail wall (13), the height of the first guide rail wall (12) and the second guide rail wall (13) relative to the ground is h, and h>0, and the bottom of the electromagnetic guide rail (10) is provided with The bottom-end protrusion (11) of the guide rail on which the gravel is accumulated, the cross-sectional shape of the bottom-end protrusion (11) of the guide rail is a triangle; The device adopts the electromagnetic reverse thrust generated by the principle of electromagnetic action to realize the braking of the train. When the train enters the station, the hydraulic rod (7) in the brake landing gear unfolds the front folding frame (5) and the rear folding frame (6). , and then push out the lower bracket (3), at this time the lower bracket (3) low-end armature (4) goes deep into the electromagnetic guide rail (10), the switch S is turned on, and the power supply G passes through the first guide rail wall (12), the armature ( 4) and the second guide rail wall (13) form a current loop, the current I generates a magnetic field B, which generates a force F on the electric charge flowing in the magnetic field, and the armature (4) generates a corresponding control in the opposite direction in the electromagnetic guide rail. power. 2 . The electromagnetic deceleration device for trains according to claim 1 , wherein the upper bracket ( 1 ) is provided with a frame body for receiving and arranging the lower bracket ( 3 ). 3 . 3 . The electromagnetic deceleration device for trains according to claim 2 , wherein the shape of the frame is a rectangle. 4 .

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