阅读说明：本技术 一种兼有发电和阻尼功能的轨道列车制动辅助系统 (Rail train braking auxiliary system with power generation and damping functions ) 是由 李伟力 解婉露 李金阳 罗轼凡 黄雪莲 李栋 高晗璎 沈稼丰 曹君慈 于 2020-03-24 设计创作，主要内容包括：本发明提供了一种兼有发电和阻尼功能的轨道列车制动辅助系统,包括：第一伸缩装置、第二伸缩装置、风力发电装置和阻尼翼板；第一伸缩装置的活塞杆连接阻尼翼板上远离旋转轴的一端；第一伸缩装置的固定端连接在轨道列车的顶部；第二伸缩装置的活塞杆连接风力发电装置的塔架,第二伸缩装置的固定端连接在轨道列车的顶部；阻尼翼板上的旋转轴与轨道列车的顶部相连接,并使阻尼翼板与轨道列车顶部呈预设角度；风力发电装置的塔架垂直固定在轨道列车的顶部。本发明能够利用空气阻尼作用减缓轨道列车前进速度,在减少能量损失的情况下实现制动目的,提高轨道列车制动过程中的安全性,具有操作简单灵活、适应性更强和制动效果好的有益效果。(The invention provides a rail train braking auxiliary system with power generation and damping functions, which comprises: the wind power generation device comprises a first telescopic device, a second telescopic device, a wind power generation device and a damping wing plate; a piston rod of the first telescopic device is connected with one end of the damping wing plate, which is far away from the rotating shaft; the fixed end of the first telescopic device is connected to the top of the rail train; a piston rod of the second telescopic device is connected with a tower of the wind power generation device, and the fixed end of the second telescopic device is connected to the top of the rail train; the rotating shaft on the damping wing plate is connected with the top of the rail train, and the damping wing plate and the top of the rail train form a preset angle; the tower of the wind power generation device is vertically fixed at the top of the rail train. The invention can utilize the air damping action to slow down the advancing speed of the rail train, realizes the braking purpose under the condition of reducing energy loss, improves the safety of the rail train in the braking process, and has the advantages of simple and flexible operation, stronger adaptability and good braking effect.)

1. A rail train braking auxiliary system with power generation and damping functions is characterized by comprising: the wind power generation device comprises a first telescopic device, a second telescopic device, a wind power generation device and a damping wing plate;

a piston rod of the first telescopic device is connected with one end, far away from the rotating shaft, of the damping wing plate; the fixed end of the first telescopic device is connected to the top of the rail train; a piston rod of the second telescopic device is connected with a tower of the wind power generation device, and the fixed end of the second telescopic device is connected to the top of the rail train;

the rotating shaft on the damping wing plate is connected with the top of the rail train, and the damping wing plate and the top of the rail train form a preset angle; the tower of the wind power generation device is vertically fixed at the top of the rail train;

the hydraulic control ends of the first telescopic device and the second telescopic device are respectively connected with a controller on a rail train.

2. The combined power generation and damping rail train brake assist system of claim 1 further comprising: an energy recovery device;

the input end of the energy recovery device is electrically connected with the output end of the wind power generation device.

3. The combined power generation and damping rail train brake assist system of claim 1 wherein the energy recovery device comprises:

the alternating current-direct current conversion unit, the direct current conversion unit and the energy storage unit;

the output end of the wind power generation device is electrically connected with the input end of the alternating current-direct current conversion unit; the output end of the alternating current-direct current conversion unit is electrically connected with the input end of the direct current conversion unit; and the output end of the direct current conversion unit is electrically connected with the energy storage unit.

4. The combined power generation and damping rail train brake assist system of claim 3, wherein the energy recovery device further comprises: an orthogonal stream conversion unit;

the input end and the output end of the direct current-alternating current conversion unit are respectively and electrically connected with the energy storage unit and the alternating current load.

5. The combined power and damping rail train brake assist system of claim 1, wherein the wind power plant comprises: the wind power generator comprises a base, a tower, blades, a gear speed increasing box and a generator;

the hub shaft on the blade is connected with one end of a wind wheel bearing on the gear speed increasing box;

a generator bearing of the generator is connected with the other end of the wind wheel bearing on the gear speed increasing box;

the gear speed increasing box and the generator are arranged inside the base, and the blades are arranged outside the base;

the base is fixedly connected with the tower.

6. The combined power generation and damping rail train brake assist system of claim 1 wherein the first retractor is a hydraulic cylinder.

7. The combined power generation and damping rail train brake assist system of claim 1 wherein the second retractor is a hydraulic cylinder.

8. The combined power generation and damping rail train brake assist system of claim 1, wherein the damping flaps comprise: a rotating shaft, a first wing plate and a second wing plate;

one end of the first wing plate is fixedly connected with the rotating shaft, and one end of the second wing plate is fixedly connected with the rotating shaft;

the other end of the first wing plate or the other end of the second wing plate is connected with a piston rod of the first telescopic device.

9. The combined power and damping rail train brake assist system of claim 8 wherein the first wing and the second wing are in the same horizontal plane and are spaced apart a predetermined distance.

10. The system of claim 1, wherein the controller is configured to determine a current speed of the rail train and adjust the predetermined angle between the damping fin and the top of the rail train according to a predetermined speed-angle relationship.

Technical Field

The invention relates to the technical field of rail train braking, in particular to a rail train braking auxiliary system with power generation and damping functions.

Background

The rail train unit generally adopts the mode of electromagnetic braking and mechanical braking to brake, when braking, will install the electro-magnet circular telegram below the bogie frame curb girder, exciting current and induced eddy current produce braking torque to realize the purpose of braking, when electric braking became invalid, will adopt mechanical braking, namely will hold the brake disc with calliper and realize mechanical braking.

When electromagnetic braking is adopted, a large part of energy is consumed; when mechanical braking is adopted, the friction braking is essential, and the hub and the steel rail are in point contact in the braking process, so that slippage is easily generated, the effective speed reduction cannot be realized, and even the brake system has problems.

Therefore, the existing rail train has the problems of excessive energy loss and unsafe braking system in the braking process.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a rail train braking auxiliary system with power generation and damping functions, so that the energy consumed in the braking process of a rail train is reduced, the advancing speed of the rail train can be reduced, and the safety of the rail train in the braking process is improved.

The invention provides a rail train braking auxiliary system with power generation and damping functions, which comprises:

the wind power generation device comprises a first telescopic device, a second telescopic device, a wind power generation device and a damping wing plate;

a piston rod of the first telescopic device is connected with one end, far away from the rotating shaft, of the damping wing plate; the fixed end of the first telescopic device is connected to the top of the rail train; a piston rod of the second telescopic device is connected with a tower of the wind power generation device, and the fixed end of the second telescopic device is connected to the top of the rail train;

the rotating shaft on the damping wing plate is connected with the top of the rail train, and the damping wing plate and the top of the rail train form a preset angle; the tower of the wind power generation device is vertically fixed at the top of the rail train;

the hydraulic control ends of the first telescopic device and the second telescopic device are respectively connected with a controller on a rail train.

Further, the method also comprises the following steps: an energy recovery device;

the input end of the energy recovery device is electrically connected with the output end of the wind power generation device.

Wherein the energy recovery device comprises:

the alternating current-direct current conversion unit, the direct current conversion unit and the energy storage unit;

the output end of the wind power generation device is electrically connected with the input end of the alternating current-direct current conversion unit; the output end of the alternating current-direct current conversion unit is electrically connected with the input end of the direct current conversion unit; and the output end of the direct current conversion unit is electrically connected with the energy storage unit.

Further, the energy recovery device further includes: an orthogonal stream conversion unit;

the input end and the output end of the direct current-alternating current conversion unit are respectively and electrically connected with the energy storage unit and the alternating current load.

Wherein, wind power generation set includes: the wind power generator comprises a base, a tower, blades, a gear speed increasing box and a generator;

the hub shaft on the blade is connected with one end of a wind wheel bearing on the gear speed increasing box;

a generator bearing of the generator is connected with the other end of the wind wheel bearing on the gear speed increasing box;

the gear speed increasing box and the generator are arranged inside the base, and the blades are arranged outside the base;

the base is fixedly connected with the tower.

Wherein, the first telescoping device is a hydraulic cylinder.

Wherein the second telescopic device is a hydraulic cylinder.

Wherein the damping wing plate includes: a rotating shaft, a first wing plate and a second wing plate;

one end of the first wing plate is fixedly connected with the rotating shaft, and one end of the second wing plate is fixedly connected with the rotating shaft;

the other end of the first wing plate or the other end of the second wing plate is connected with a piston rod of the first telescopic device.

Wherein, first pterygoid lamina and second pterygoid lamina are in same horizontal plane and interval preset distance.

And the controller on the rail train is used for determining the current speed of the rail train and adjusting the preset angle between the damping wing plate and the top of the rail train according to the corresponding relation between the preset speed and the preset angle.

According to the technical scheme, the rail train braking auxiliary system with the power generation and damping functions can slow down the advancing speed of a rail train by utilizing the air damping effect, achieves the braking purpose under the condition of reducing energy loss, and improves the safety of the rail train in the braking process. The brake system has the advantages of simple and flexible operation, stronger adaptability, safe operation and good braking effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a rail train braking auxiliary system with power generation and damping functions provided by an embodiment of the invention.

Fig. 2 is a schematic structural diagram of an energy recovery device in the rail train braking auxiliary system with both power generation and damping functions provided by the invention.

Fig. 3 is a schematic structural diagram of a wind power generation device in the rail train braking auxiliary system with both power generation and damping functions provided by the invention.

Fig. 4 is a schematic structural diagram of a straight bar hydraulic cylinder in the rail train braking auxiliary system with power generation and damping functions provided by the invention.

Fig. 5 is a schematic view of the movable range of the damping wing plate in the rail train braking auxiliary system with both power generation and damping functions provided by the invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides an embodiment of a rail train braking auxiliary system with power generation and damping functions, and with reference to fig. 1, the rail train braking auxiliary system specifically comprises:

the wind power generation device comprises a first telescopic device 1, a second telescopic device 2, a wind power generation device 3 and a damping wing plate 4; a piston rod of the first telescopic device 1 is connected with one end of the damping wing plate 4 far away from the rotating shaft; the fixed end of the first telescopic device 1 is connected to the top of the rail train; a piston rod of the second telescopic device 2 is connected with a tower of the wind power generation device 3, and the fixed end of the second telescopic device 2 is connected with the top of the rail train;

the rotating shaft on the damping wing plate 4 is connected with the top of the rail train, and the damping wing plate 4 and the top of the rail train form a preset angle; the tower of the wind power generation device 3 is vertically fixed at the top of the rail train;

the hydraulic control ends of the first telescopic device 1 and the second telescopic device 2 are respectively connected with a controller on the rail train.

When the rail train starts to brake, the damping flaps 4 are opened to form a prescribed angle with the rail train top plane by the first telescopic device 1, and the wind power generation device 3 is raised to the vertical rail train top position by the second telescopic device 2. The wind power generation device has a certain area, so that the wind power generation device not only has the function of generating power, but also has the damping function.

After the braking is completed, the wind power plant 3 and the damping flaps 4 are retracted again using the first and second telescopic devices 1 and 2. During the arrival deceleration process of the rail train, the electric energy generated by the wind power generation device 3 can be fed back to the power grid through the step-up transformer and can also be used for supplying power to the rail train.

Further, in specific implementation, the method further comprises: an energy recovery device; the input end of the energy recovery device is electrically connected with the output end of the wind power generation device 3 and is used for receiving the electric energy generated by the wind power generation device 3. Referring to fig. 2, the energy recovery apparatus includes:

the system comprises an alternating current-direct current conversion unit 11, a direct current conversion unit 12 and an energy storage unit 13; the output end of the wind power generation device 3 is electrically connected with the input end of the alternating current-direct current conversion unit 11; the output end of the AC-DC conversion unit 11 is electrically connected with the input end of the DC conversion unit 12; the output end of the dc conversion unit 12 is electrically connected to the energy storage unit 13.

The energy recovery device may further include: a direct-alternating current conversion unit 14;

the input end and the output end of the direct-alternating current conversion unit 14 are respectively electrically connected with the energy storage unit 13 and the alternating current load.

The wind power is used for driving the wind power generation device 3 to generate power, the electric energy generated by the wind power generation device 3 is stored in the energy storage unit 13, and the electric energy generated by the wind power generation device 3 can also be stored in an energy storage system in a rail train.

The electric energy generated by the wind power generation device 3 is stored in an energy storage system in the rail train, and on one hand, the electric energy can be fed back to a power grid through a step-up transformer and can also be used for supplying power to the rail train.

Further, the wind power generation apparatus in the present embodiment includes: base 21, tower 22, blades 23, gear box 24 and generator 25;

referring to fig. 3, the hub shaft on the blade 23 is connected with one end of the wind wheel bearing on the gear speed increasing box 23; the generator bearing of the generator 25 is connected with the other end of the wind wheel bearing on the gear speed increasing box 24; the gear speed increasing box 24 and the generator 25 are arranged inside the base 21, and the blades 23 are arranged outside the base 21; the base 21 is fixedly connected with the tower 22.

The blades 23 are driven by wind power to rotate, the blades 23 enable a wind wheel bearing on the gear speed increasing box 23 to rotate along with the hub shaft, and the gear speed increasing box 23 increases the rotating speed and then transmits the rotating speed to a generator bearing of the generator 25, so that the generator 25 is driven to rotate to generate electricity.

It should be noted that the bottom of the tower 22 is connected to a piston rod of the second telescopic device 2, and the telescopic movement of the piston rod of the second telescopic device 2 can drive the tower 22 to move in the vertical direction, so that the wind power generator can extend out of the top of the rail train when the rail train brakes.

In this embodiment, preferably, the first telescopic device is a hydraulic cylinder, and preferably, the second telescopic device is a hydraulic cylinder. In specific application, a single straight bar hydraulic cylinder is adopted. See fig. 4 for a schematic structural view of a single straight bar hydraulic cylinder.

One end of the hydraulic cylinder piston rod 31 is connected with the piston 32, and the other end is connected with the cylinder. When the rail train starts to brake, liquid is introduced into the left cavity 101 of the cylinder body of the hydraulic cylinder through the access passage 33, when the liquid pressure can overcome the gravity of the external load of the cylinder body, the piston 32 starts to move rightwards, if the liquid is continuously introduced, the piston can continuously move rightwards at a certain speed until the damping wing plate and the wind power generation device are lifted to the designated position by the hydraulic support rod.

Referring to the schematic view of the range of motion of the damping flap shown in fig. 5, in this embodiment, the damping flap comprises: a rotary shaft 41, a first wing 42, and a second wing 43; one end of the first wing plate 42 is fixedly connected with the rotating shaft 41, and one end of the second wing plate 43 is fixedly connected with the rotating shaft 41; the other end of the first wing 42 or the other end of the second wing 43 is connected to a piston rod of the first telescopic device. The first wing plate 42 and the second wing plate 43 are in the same horizontal plane and spaced apart by a predetermined distance.

When the train starts to brake, the piston rod of the first telescopic device enables the first wing plate and the second wing plate to rotate around the rotating shaft at the same time, and the rotating direction is directed to the head of the train from the tail of the train. The damping wing plate at the top of the rail train is opened through rotation, the placing angle of the damping wing plate can be adjusted, and the included angle between the damping wing plate and the plane at the top tail side of the train is adjusted according to the wind power and the traveling speed in the process of decelerating and traveling of the rail train, so that the most appropriate damping effect is achieved, and the rail train is decelerated and enters the station safely and stably.

It should be noted that the first wing plate and the second wing plate are located on the same horizontal plane and separated by a preset distance, and the separation distance enables the wind power generation device to vertically penetrate through the first wing plate and the second wing plate, so that the volume of the auxiliary braking system can be reduced.

It is understood that the other end of the first wing plate or the other end of the second wing plate is connected with a piston rod of the first telescopic device, and a third telescopic device can be further arranged. The other end of the first wing plate and the other end of the second wing plate are respectively connected with a piston rod of the first telescopic device and a piston rod of the third telescopic device.

The application mode of the rail train braking auxiliary system with the power generation and damping functions is as follows:

a rail train braking auxiliary system with power generation and damping functions is arranged in the top of a carriage of a rail train, a push plate is arranged on the upper portion of the carriage in the process of entering, stopping and decelerating the rail train, a space is exposed after the push plate is pushed away, the top of a bullet train carriage is arranged above a wind driven generator below the space and consists of two wing plate dampers, the two wing plate dampers are opened by a hydraulic cylinder to form a certain angle with the plane of the top of the bullet train, and the wind driven generator is lifted to the position vertical to the plane of the top of the bullet train. The wind driven generator can play a role in generating electricity and a role in damping; and the damping of the two wing plates is completely damping.

It should be noted that the controller on the rail train is configured to determine the current speed of the rail train and adjust the preset angle between the damping wing plate and the top of the rail train according to the preset corresponding relationship between the speed and the angle.

In this embodiment, the damping wing plate is arranged to rotate from the tail part to the head part of the rail train, so that the angle and the speed are in a reverse relation, that is, the faster the speed of the rail train is, the smaller the angle between the damping wing plate and the top of the tail part of the rail train is, and the phenomenon that the resistance is too large and the damping wing plate is damaged due to too high speed of the rail train is avoided.

Furthermore, when the train starts to brake, the damping wing plate at the top of the train is opened, and the included angle between the damping wing plate and the plane at the top of the train can be adjusted according to the wind power and the running speed in the process of decelerating and running of the train so as to play the most appropriate damping role and ensure that the train can be safely and stably decelerated and enter the station.

As can be seen from the above description, the rail train braking auxiliary system with both power generation and damping functions provided in the embodiments of the present invention functions as both energy recovery and energy saving, and reduces energy loss. And the advancing speed of the railway vehicle can be slowed down by utilizing the air damping effect. The energy is recycled, the utilization rate of the energy is improved, meanwhile, the air can be utilized to play a damping role, the advancing speed of the high-speed rail motor car unit is reduced, the purpose of braking is achieved, energy loss is reduced, and the beneficial effects of simplicity in operation, safety in operation, good braking effect, flexibility in operation and stronger adaptability are achieved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. The terms "upper", "lower", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.