Wheel rotation energy recovery sensor power supply system of freight train

Abstract

The invention discloses a freight train wheel rotation energy recovery sensor power supply system, which belongs to the technical field of freight train energy recovery and operation safety, and comprises a control mainboard, a vehicle-mounted main power supply, an energy recovery device, a power supply line, a sensing line, various train sensor assemblies and a vehicle-mounted auxiliary power supply, the energy recovery device is mounted outside wheels of a train bogie, is connected with the vehicle-mounted main power supply through the power supply circuit, and is connected with the control mainboard through the power supply circuit and the sensing circuit; and the vehicle-mounted main power supply is connected with each sensor assembly of the train and the vehicle-mounted auxiliary power supply through the power supply line. According to the wheel rotation energy recovery sensor power supply system of the freight train, energy released in the train running process can be efficiently recovered and utilized, the power supply system is optimized, the energy use efficiency of the train is improved, and the service life of a power system is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of energy recovery and operation safety of freight trains, and particularly to a power supply system for a sensor that recovers the rotational energy of the wheels of a freight train. Background Art

[0002] In the railway transportation industry, ensuring the safe and stable operation of locomotives and rolling stock is of utmost importance. To maintain the stability and safety of a train during operation, a series of sensors for detecting the train's operating status must be installed on key components of the train, such as the running parts. These sensors are crucial for monitoring various operating parameters of the train. They can monitor important indicators such as speed, temperature, pressure, and vibration, thus ensuring that the train can operate safely and efficiently. The use of sensor technology can effectively prevent potential failures and ensure a safe and smooth driving process.

[0003] In the field of railway transportation, ensuring the stable power supply of sensors has always been an important technical challenge. Traditionally, the sensors on trains mainly rely on the on-vehicle power supply system for power supply, and the power is distributed to each sensor through wiring. However, this method has obvious limitations. First of all, a large amount of wiring not only increases the complexity and weight of the train, raises the manufacturing cost, but also may cause electrical failures due to line aging and wear after long-term use, affecting the working stability of the sensors and threatening the safety of train operation. Secondly, for diesel locomotives operating on lines without catenaries, in the event of an accident or a power supply system failure, the sensors may not be able to work properly due to the loss of power, resulting in the inability to provide necessary information to the train control system.

[0004] At the same time, a variety of available energy forms are generated during the operation of the train, such as mechanical energy generated when the wheels rotate. How to efficiently capture and convert this energy for use by sensors has become one of the key research directions. With the development of energy recovery technology, researchers are exploring new methods aimed at converting this energy into electrical energy through appropriate technical means to provide an independent and reliable power supply solution for sensors. Summary of the Invention

[0005] The purpose of the present invention is to provide a power supply system for a sensor that recovers the rotational energy of the wheels of a freight train, which can efficiently recover and utilize the energy released during the operation of the train, optimize the power supply system, improve the energy use efficiency of the train, and extend the service life of the power system.

[0006] To achieve the above object, the present invention provides a power supply system for a wheel rotation energy recovery sensor of a freight train, including a control main board, a vehicle-mounted main power supply, an energy recovery device, a power supply line, a sensing line, various train sensor components, and a vehicle-mounted auxiliary power supply; the energy recovery device is installed outside the wheels of the train bogie, the energy recovery device is connected to the vehicle-mounted main power supply through the power supply line, the energy recovery device is connected to the control main board through the power supply line and the sensing line, and the vehicle-mounted main power supply is connected to various train sensor components and the vehicle-mounted auxiliary power supply through the power supply line.

[0007] Preferably, the energy recovery device includes a generator mechanism, a belt drive mechanism, and a magnetic induction power generation mechanism, and the generator mechanism and the magnetic induction power generation mechanism are respectively connected to both sides of the belt drive mechanism.

[0008] Preferably, the generator mechanism includes a rotating disc, a first circular shaft is fixedly connected to the center of one end face of the rotating disc, a first pulley is fixedly penetrated at the end of the first circular shaft away from the rotating disc, the first pulley is rotationally connected to a second pulley through a first belt, the second pulley is fixedly connected to the output end of the generator, and a rotational speed sensor is built in the generator.

[0009] Preferably, the belt drive mechanism includes a third pulley, the third pulley is coaxially installed with the first pulley and is located outside the first pulley, the third pulley is rotationally connected to a fourth pulley through a second belt, a second circular shaft is fixedly connected to the center of the fourth pulley, the end of the second circular shaft away from the fourth pulley is fixedly connected to the center of a fifth pulley, the fifth pulley is rotationally connected to a sixth pulley through a third belt, and a third circular shaft is fixedly penetrated at the center of the sixth pulley, and the third circular shaft is fixedly penetrated and connected to the center of a flywheel.

[0010] Preferably, a steering gear is provided on one side of the sixth pulley, a torque sensor is built in the steering gear, an output end of the steering gear is fixedly connected to a pulley connecting plate, a pulley is installed on the other side of the pulley connecting plate, and the pulley is slidably connected to the third belt.

[0011] Preferably, the magnetic induction power generation mechanism includes a coil fixed on the third circular shaft, a magnet is fixedly provided at the concentric position of the outer circular end of the coil, the outer circular end face of the magnet is fixed on a magnet fixing plate, and one end of the magnet fixing plate is fixed on a chassis.

[0012] Preferably, the control main board is connected to the generator, the rotational speed sensor, the steering gear, and the torque sensor. By comparing the real-time data with the set control parameters, the tightness of the steering gear is controlled to make the magnetic induction power generation mechanism generate electricity. At the same time, the power generation performance of the energy recovery device is measured to assist in improving the control parameters and enhancing the power generation performance.

[0013] Preferably, the vehicle-mounted main power supply is a storage battery with overload protection installed in the train bogie; when the energy recovery device starts to generate electricity, the vehicle-mounted main power supply is powered and supplies power to various sensor components of the train. When the vehicle-mounted main power supply is fully charged, it automatically transmits power to the vehicle-mounted auxiliary power supply to prevent overload.

[0014] Preferably, the various sensor components of the train include:

[0015] A microelectromechanical three-axis acceleration sensor for monitoring the running stability and snake-like instability state of the freight car;

[0016] A temperature monitoring sensor for monitoring the brake shoe state and judging the temperature rise of the wheel and brake shoe when the release is poor;

[0017] A displacement sensor for monitoring the overloading and offloading conditions of freight vehicles;

[0018] A laser ranging sensor for monitoring the spring deflection and realizing the spring expansion and contraction measurement by using the characteristics of high dynamic response;

[0019] A speed sensor for being used together with a high-definition color line array scanning unit to perform real-time monitoring on a moving railway freight train;

[0020] An axle temperature monitoring sensor for monitoring the bearing state;

[0021] A pressure sensor for monitoring the event recorder on the railway train to provide important information in case of an accident;

[0022] An optoelectronic sensor for realizing the identification of freight train information.

[0023] Preferably, the operation method of the system includes the following steps:

[0024] Based on the different operating environments, select a matching energy recovery device;

[0025] Set control parameters matching the operating line in the control main board to control the energy recovery device to generate electricity;

[0026] When the freight train is running, the wheels drive the energy recovery device to generate electricity;

[0027] The vehicle-mounted main power supply is powered on to start storing electricity and supply power to various sensor components of the train;

[0028] Each sensor component of the train is powered on to start working and display the real-time running data of the train.

[0029] Therefore, the beneficial effects of adopting the above-mentioned power supply system for the wheel rotation energy recovery sensor of a freight train in the present invention are as follows:

[0030] (1) In the present invention, the energy recovery device uses the energy generated during the train operation for power generation, reducing the power consumption. The energy recovery device contains two energy recovery mechanisms, which is beneficial to improving the conversion efficiency of rotational energy.

[0031] (2) The present invention can collect power generation performance data, and then control relevant control parameters through the control main board, so as to accurately control the start and stop of the steering gear, and further improve the power generation amount.

[0032] (3) The present invention is an independent vehicle power supply system, and the power supply line is simpler than using the on-board power supply of the locomotive, greatly reducing the failure rate.

[0033] (4) By using the belt drive as the power transmission setting in the present invention, it can achieve high-speed transmission, reduce wear, operate smoothly, reduce noise, etc., and can also achieve high reliability and precise control of the power of the device, quickly cutting off or transmitting power.

[0034] (5) In the present invention, a flywheel is installed in the middle. The rotating flywheel can store energy. When the rotating disk stops or rotates below a certain set value, the electromagnetic induction device will continue to rotate due to the inertia of the flywheel, and the electromagnetic induction device can still continue to generate electricity. Using the rotation of the flywheel to provide power for the magnetic induction device to generate electricity, the principle is that the coil is fixed and the magnet rotates around the coil to cut the magnetic induction line for power generation. There is an additional flywheel energy storage power generation compared with the original device that directly uses the generator for power generation, improving the power generation efficiency.

[0035] (6) The present invention has an independent storage battery, which can be connected to the locomotive auxiliary power supply system to provide emergency guarantee for other electrical equipment in case of emergencies during train operation.

[0036] Next, through the drawings and embodiments, the technical solutions of the present invention will be further described in detail. Description of the Drawings

[0037] Figure 1 It is a schematic structural diagram of the energy recovery device in the embodiment of the power supply system for the wheel rotation energy recovery sensor of a freight train according to the present invention;

[0038] Figure 2 It is a schematic diagram of the generator mechanism in the energy recovery device;

[0039] Figure 3 It is a schematic diagram of the belt drive mechanism in the energy recovery device;

[0040] Figure 4 It is a schematic diagram of the connection between the magnetic induction power generation mechanism and the flywheel in the energy recovery device;

[0041] Figure 5 It is an internal sectional view of the magnetic induction power generation mechanism in the energy recovery device;

[0042] Figure 6 It is a schematic flow diagram of the power supply system for the wheel rotation energy recovery sensor of a freight train according to the present invention;

[0043] Figure 7 It is a schematic diagram of the working principle of the power supply system for the wheel rotation energy recovery sensor of a freight train according to the present invention.

[0044] Reference numerals

[0045] 1. Generator mechanism; 101. Rotating disc; 102. First circular shaft; 103. First pulley; 104. First belt; 105. Second pulley; 106. Generator; 2. Belt drive mechanism; 201. Third pulley; 202. Fourth pulley; 203. Second belt; 204. Second circular shaft; 205. Fifth pulley; 206. Third belt; 207. Pulley; 208. Pulley connecting plate; 209. Flywheel; 210. Steering gear; 211. Third circular shaft; 212. Sixth pulley; 3. Magnetic induction power generation mechanism; 301. Coil; 302. Magnet; 303. Magnet fixing plate; 304. Chassis. Detailed implementation manners

[0046] The technical solutions of the present invention will be further described below with reference to the drawings and embodiments.

[0047] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the ordinary meanings understood by those of ordinary skill in the field to which the present invention belongs. The "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or items appearing before this word cover the elements or items listed after this word and their equivalents, without excluding other elements or items. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left", "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0048] Embodiment 1

[0049] The present invention provides a power supply system for a wheel rotation energy recovery sensor of a freight train, which includes a control main board, a vehicle-mounted main power supply, an energy recovery device, a power supply line, a sensing line, various train sensor components, and a vehicle-mounted auxiliary power supply. The energy recovery device is installed outside the wheels of the train bogie. The energy recovery device is connected to the vehicle-mounted main power supply through the power supply line, and the energy recovery device is connected to the control main board through the power supply line and the sensing line. The vehicle-mounted main power supply is connected to various train sensor components and the vehicle-mounted auxiliary power supply through the power supply line.

[0050] The vehicle-mounted main power supply is a battery with overload protection installed in the train bogie. When the energy recovery device starts generating electricity, the vehicle-mounted main power supply receives power and supplies power to various train sensor components. When the vehicle-mounted main power supply is fully charged, it automatically transmits power to the vehicle-mounted auxiliary power supply to prevent overload. Among them, the batteries of the vehicle-mounted main power supply and the vehicle-mounted auxiliary power supply can be selected correspondingly by the staff according to the operating line and the operating environment. In addition, in the energy recovery sensor power supply system of this embodiment, there is a total line interface between the vehicle-mounted main power supply and the vehicle-mounted auxiliary power supply. When the train encounters an emergency or the power supply system fails to provide power supply guarantee, especially when the traction locomotive is a diesel locomotive, in case of an emergency, when the train engine stops and cannot supply power to the train, the vehicle-mounted auxiliary power supply is connected to the vehicle-mounted main power supply, which can not only supply power to various train sensor components, but also supply power to emergency power equipment.

[0051] Various train sensor components include: a microelectromechanical three-axis acceleration sensor for monitoring the running stability and snake instability state of the freight car. A temperature monitoring sensor for monitoring the brake shoe state and judging the temperature rise of the wheel and brake shoe when the release is poor. A displacement sensor for monitoring the overloading and offloading conditions of the freight vehicle. A laser ranging sensor for monitoring the spring deflection and realizing the spring expansion and contraction measurement by using the characteristics of high dynamic response. A speed sensor for being used together with a high-definition color line array scanning unit to perform real-time monitoring on a moving railway freight train. An axle temperature monitoring sensor for monitoring the bearing state. A pressure sensor for monitoring that the event recorder on the railway train provides important information in case of an accident. An optoelectronic sensor for realizing the identification of freight train information.

[0052] Among them, as Figure 1 shown, the energy recovery device includes a generator mechanism 1, a belt drive mechanism 2, and a magnetic induction power generation mechanism 3. The generator mechanism 1 and the magnetic induction power generation mechanism 3 are respectively connected to both sides of the belt drive mechanism 2.

[0053] As Figure 2As shown in the figure, the generator mechanism 1 includes a rotating disk 101. At the center of one end face of the rotating disk 101, a first circular shaft 102 is fixedly connected. At the end of the first circular shaft 102 away from the rotating disk 101, a first pulley 103 is fixedly installed. The first pulley 103 is rotationally connected to a second pulley 105 through a first belt 104. The second pulley 105 is fixedly connected to the output end of the generator 106. The generator 106 is internally equipped with a rotational speed sensor for measuring the rotational speed of the generator 106 in real time.

[0054] As Figure 3 shown in the figure, the belt drive mechanism 2 includes a third pulley 201. The third pulley 201 is coaxially installed with the first pulley 103 and is located outside the first pulley 103. The third pulley 201 is rotationally connected to a fourth pulley 202 through a second belt 203. At the center of the fourth pulley 202, a second circular shaft 204 is fixedly connected. At the end of the second circular shaft 204 away from the fourth pulley 202, it is fixedly connected to the center of a fifth pulley 205. The fifth pulley 205 is rotationally connected to a sixth pulley 212 through a third belt 206. At the center of the sixth pulley 212, a third circular shaft 211 is fixedly installed through it. The third circular shaft 211 is fixedly installed through and connected to the center of the flywheel 209.

[0055] On one side of the sixth pulley 212, a steering gear 210 is provided. Inside the steering gear 210, a torque sensor is built in for measuring the transmission torque of the belt in real time. The output end of the steering gear 210 is fixedly connected to a pulley connecting plate 208. On the other side of the pulley connecting plate 208, a pulley 207 is rotatably fixed. The pulley 207 is slidably connected to the third belt 206.

[0056] As Figure 4 and Figure 5 shown in the figure, the magnetic induction power generation mechanism 3 includes a coil 301 fixed on the third circular shaft 211. At the concentric position of the outer circle end of the coil 301, a magnet 302 is fixed. The outer circle end face of the magnet 302 is fixed on a magnet fixing plate 303. One end of the magnet fixing plate 303 is fixed on the chassis 304.

[0057] The control main board is connected to the generator 106, the rotational speed sensor, the steering gear 210, and the torque sensor. By comparing the real-time data with the set control parameters, the tightness of the steering gear 210 is controlled to enable the magnetic induction power generation mechanism 3 to generate electricity. At the same time, the power generation performance of the energy recovery device is measured to assist in improving the control parameters and enhancing the power generation performance.

[0058] The energy recovery device in the energy recovery sensor power supply system of this embodiment has a relatively simple structure and is convenient to operate. It can select a matching energy recovery device and control parameters according to different operating environments, different traction conditions, and the performance of the traction locomotive. The energy recovery device in this embodiment provides two energy recovery structures, effectively improving the energy conversion efficiency. The power generation structure in the energy recovery device can be controlled by the control main board to provide a variety of different power generation modes. One is the power generation mode combining the magnetic induction power generation mechanism 3 and the generator 106, and the other is the power generation by the generator 106 alone.

[0059] The operation method of the energy recovery sensor power supply system of this embodiment is as Figure 6 shown, and specifically includes the following steps:

[0060] Based on different operating environments, select a matching energy recovery device.

[0061] Set control parameters matching the operating line in the control main board to control the power generation of the energy recovery device.

[0062] When the freight train is running, the wheels drive the energy recovery device to generate electricity.

[0063] The on-vehicle main power supply is energized to start storing electricity and supply power to various sensor components of the train.

[0064] Each sensor component of the train is energized to start working and display the operating data of the train in real time.

[0065] The working principle of the energy recovery sensor power supply system of this embodiment is as Figure 7 shown. The energy recovery device needs to be installed outside the wheels of the train bogie, and there are no requirements for the other components. When the train is running, the axle drives the rotating disc 101 to rotate, and then through the belt drive, the generator 106 rotates to generate electricity. The generator 106 preferentially supplies power to the control main board, and the remaining power is supplied to the on-vehicle main power supply. The control main board receives power and the rotation speed signal from the rotation speed sensor built in the generator 106. The control main board can set control parameters to control the tightness of the servo 210 in the energy recovery device. When the rotation speed of the generator 106 reaches the preset requirement, the control main board controls the operation of the servo 210 to tighten the transmission belt, and then transmits the power of the belt drive to the magnetic induction power generation mechanism 3. At the same time, the control main board receives the real-time data of the torque sensor and the power generation performance data of the energy recovery device.

[0066] The electric energy generated by the generator 106 or the magnetic induction power generation mechanism 3 is transmitted to the on-vehicle main power supply. After receiving the power, the on-vehicle main power supply supplies power to various sensor components of the train to make each sensor start working. When the on-vehicle main power supply is full, the control power supply line automatically supplies the excess power to the on-vehicle auxiliary power supply.

[0067] The control main board can collect the real-time rotational speed data of the generator 106, the torque data of the belt drive after the tightening of the steering gear 210, as well as the relevant power generation data. Through these data, technicians can adjust different control parameters, and then adjust the power generation mode, so as to improve the power generation performance. The control parameters can be adjusted according to the performance of the traction locomotive, the speed and length of the operation route. Technicians can also select a control main board with matching computing power and memory according to the relevant situation.

[0068] Therefore, by adopting the above-mentioned power supply system for the wheel rotation energy recovery sensor of a freight train, the present invention can efficiently recover and utilize the energy released during the train operation, optimize the power supply system, improve the energy use efficiency of the train, and extend the service life of the power system.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that they can still modify or equivalently replace the technical solutions of the present invention, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A power supply system for a sensor that recovers the rotational energy of the wheels of a freight train, characterized in that: It includes a control main board, a vehicle-mounted main power supply, an energy recovery device, a power supply line, a sensing line, various train sensor components, and a vehicle-mounted auxiliary power supply; the energy recovery device is installed outside the wheels of the train bogie, the energy recovery device is connected to the vehicle-mounted main power supply through the power supply line, the energy recovery device is connected to the control main board through the power supply line and the sensing line, and the vehicle-mounted main power supply is connected to various train sensor components and the vehicle-mounted auxiliary power supply through the power supply line.

2. The power supply system for the wheel rotation energy recovery sensor of a freight train according to claim 1, wherein: The energy recovery device includes a generator mechanism, a belt drive mechanism, and a magnetic induction power generation mechanism, and the generator mechanism and the magnetic induction power generation mechanism are respectively connected to both sides of the belt drive mechanism.

3. The power supply system for the wheel rotation energy recovery sensor of a freight train according to claim 2, characterized in that: The generator mechanism includes a rotating disk, a first circular shaft is fixedly connected to the center of one end face of the rotating disk, a first pulley is fixedly installed at the end of the first circular shaft away from the rotating disk, the first pulley is rotationally connected to a second pulley through a first belt, the second pulley is fixedly connected to the output end of the generator, and a rotational speed sensor is built in the generator.

4. A power supply system for a wheel rotation energy recovery sensor of a freight train according to claim 3, characterized in that: The belt drive mechanism includes a third pulley, the third pulley is coaxially installed with the first pulley and is located outside the first pulley, the third pulley is rotationally connected to a fourth pulley through a second belt, a second circular shaft is fixedly connected to the center of the fourth pulley, the end of the second circular shaft away from the fourth pulley is fixedly connected to the center of a fifth pulley, the fifth pulley is rotationally connected to a sixth pulley through a third belt, and a third circular shaft is fixedly installed through the center of the sixth pulley, and the third circular shaft is fixedly installed through the center of a flywheel.

5. The power supply system for the wheel rotation energy recovery sensor of a freight train according to claim 4, characterized in that: A servo is arranged on one side of the sixth pulley, a torque sensor is built in the servo, the output end of the servo is fixedly connected to a pulley connecting plate, and a pulley is installed on the other side of the pulley connecting plate, and the pulley is slidably connected to the third belt.

6. The power supply system for the wheel rotation energy recovery sensor of a freight train according to claim 5, characterized in that: The magnetic induction power generation mechanism includes a coil fixed on the third circular shaft, a magnet is fixedly installed at the concentric position of the outer circle end of the coil, the outer circle end face of the magnet is fixed on a magnet fixing plate, and one end of the magnet fixing plate is fixed on the chassis.

7. The power supply system for the wheel rotation energy recovery sensor of a freight train according to claim 6, characterized in that: The control main board is connected to the generator, the rotational speed sensor, the servo, and the torque sensor. By comparing the real-time data with the set control parameters, the tightness of the servo is controlled to enable the magnetic induction power generation mechanism to generate electricity, and at the same time, the power generation performance of the energy recovery device is measured to assist in improving the control parameters and enhancing the power generation performance.

8. The power supply system for the wheel rotation energy recovery sensor of a freight train according to claim 1, characterized in that: The vehicle-mounted main power supply is a storage battery with overload protection installed in the train bogie; when the energy recovery device starts to generate electricity, the vehicle-mounted main power supply is powered and supplies power to various train sensor components. When the vehicle-mounted main power supply is fully charged, it automatically transmits power to the vehicle-mounted auxiliary power supply to prevent overload.

9. The power supply system for the wheel rotation energy recovery sensor of a freight train according to claim 1, characterized in that: The various train sensor components include: A microelectromechanical three-axis acceleration sensor for monitoring the running stability and snake instability state of the freight car; A temperature monitoring sensor for monitoring the brake shoe state and judging the temperature rise of the wheel and brake shoe when the release is poor; Displacement sensor, used to monitor overloading and offloading conditions of freight vehicles; Laser ranging sensor, used to monitor spring deflection and measure spring expansion and contraction using the characteristics of high dynamic response; Speed sensor, used to be used together with a high-definition color linear array scanning unit to monitor a moving railway freight train in real time; Axle temperature monitoring sensor, used to monitor bearing conditions; Pressure sensor, used to monitor that the event recorder on a railway train provides important information in case of an accident; Optoelectronic sensor, used to identify freight train information.

10. A power supply system for a wheel rotation energy recovery sensor of a freight train according to any one of claims 1-9, characterized in that: The operation method of this system includes the following steps: Based on different operating environments, select a matching energy recovery device; Set control parameters matching the operating line in the control main board to control the energy recovery device to generate electricity; When the freight train is running, the wheels drive the energy recovery device to generate electricity; The on-vehicle main power supply is powered on to start storing electricity and supply power to each sensor component of the train; Each sensor component of the train is powered on to start working and display various running data of the train in real time.

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