A power supply system for wheel rotation energy recovery sensors on freight trains

Abstract

The present invention discloses a power supply system for a wheel rotation energy recovery sensor of a freight train, which belongs to the technical field of energy recovery and operation safety of freight trains, and includes a control mainboard, an on-board main power supply, an energy recovery device, a power supply circuit, a sensor circuit, various sensor components of the train, and an on-board auxiliary power supply; the energy recovery device is installed on the outside of the wheel of the train bogie, the energy recovery device is connected to the on-board main power supply through the power supply circuit, the energy recovery device is connected to the control mainboard through the power supply circuit and the sensor circuit, and the on-board main power supply is connected to the various sensor components of the train and the on-board auxiliary power supply through the power supply circuit. The present invention adopts the above-mentioned power supply system for a wheel rotation energy recovery sensor 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 utilization efficiency of the train, and extend the service life of the power system.

Description

Technical Field

[0001] The present invention relates to the technical field of energy recovery and operation safety of freight trains, and in particular to a power supply system for a wheel rotation energy recovery sensor of a freight train. Background Art

[0002] In the railway transportation industry, ensuring the safe and stable operation of rolling stock is paramount. To maintain train stability and safety, a series of sensors are installed on key train components, such as the running parts, to monitor the train's operating status. These sensors are crucial for monitoring various operating parameters, such as speed, temperature, pressure, and vibration, to ensure safe and efficient train operation. Leveraging sensor technology can effectively prevent potential failures and ensure safe and smooth operation.

[0003] In the field of railway transportation, ensuring a stable power supply for sensors has always been a major technical challenge. Traditionally, sensors on trains rely primarily on the onboard power system for power, with power distributed to each sensor via wiring. However, this approach has significant limitations. First, the large amount of wiring not only increases the complexity and weight of the train, increasing manufacturing costs, but can also cause electrical failures due to aging and wear of the wiring after long-term use, affecting the stability of the sensors and threatening driving safety. Second, in the event of an accident or power supply system failure on diesel locomotives operating on lines without a catenary, the sensors may lose power and fail to operate normally, resulting in an inability to provide necessary information to the train control system.

[0004] At the same time, trains generate a variety of usable energy during operation, such as mechanical energy from wheel rotation. Efficiently capturing and converting this energy for use by sensors has become a key research topic. With the advancement of energy recovery technology, researchers are exploring new methods to convert this energy into electricity through appropriate technical means, providing 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 wheel rotation energy recovery sensor 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 utilization efficiency of the train, and extend the service life of the power system.

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

[0007] Preferably, the energy recovery device includes a generator mechanism, a belt transmission 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 transmission mechanism.

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

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

[0010] Preferably, a servo is provided on one side of the sixth pulley, a torque sensor is built into the servo, an output end of the servo 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 fixed at the cocenter of the outer circular end of the coil, the outer circular end surface of the magnet is fixed on a magnet fixing plate, and one end of the magnet fixing plate is fixed on the chassis.

[0012] Preferably, the control main board is connected to the generator, speed sensor, servo and torque sensor, and by comparing the real-time data with the set control parameters, the tightness of the servo is controlled to make the magnetic induction power generation mechanism 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 enhance the power generation performance.

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

[0014] Preferably, the train sensor components include:

[0015] A micro-electromechanical three-axis acceleration sensor is used to monitor the running stability and serpentine instability of the truck;

[0016] Temperature monitoring sensor, used to monitor the brake shoe status and determine if the wheel and brake shoe temperatures rise when the mitigation is poor;

[0017] Displacement sensors are used to monitor overloading and uneven loading of freight vehicles;

[0018] Laser ranging sensor, used to monitor spring deflection, uses high dynamic response characteristics to achieve spring expansion and contraction measurement;

[0019] Speed ​​sensor, used in conjunction with a high-definition color line array scanning unit to monitor moving railway freight trains in real time;

[0020] Axle temperature monitoring sensor, used to monitor bearing status;

[0021] Pressure sensors used to monitor event recorders on railway trains provide vital information in the event of an accident;

[0022] Photoelectric sensor, used to identify freight train information.

[0023] Preferably, the operating method of the system comprises the following steps:

[0024] Select the matching energy recovery device based on the different operating environments;

[0025] Set the control parameters that match the operating circuit in the control mainboard to control the energy recovery device to generate electricity;

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

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

[0028] The various sensor components of the train are powered on and start working, displaying the various operating data of the train in real time.

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

[0030] (1) The present invention utilizes the energy generated during train operation to generate electricity through an energy recovery device, thereby reducing power consumption. The energy recovery device includes two energy recovery mechanisms, which are beneficial to improving the rotational energy conversion efficiency.

[0031] (2) The present invention can collect power generation performance data, and then can control relevant control parameters through the control mainboard, thereby accurately controlling the start and stop of the servo, thereby increasing power generation.

[0032] (3) The present invention is a separate vehicle power supply system, and the power supply circuit is simpler than using the locomotive onboard power supply, which greatly reduces the failure rate.

[0033] (4) The present invention utilizes a belt drive as a power transmission device, thereby achieving high-speed transmission, reduced wear, smooth operation, and reduced noise, and can also achieve high reliability and precise control of the power of the device, and quickly cut off or transmit power.

[0034] (5) The present invention has a flywheel installed in the middle, and the rotating flywheel can store energy. When the rotating disc 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. The rotation of the flywheel is used to provide power to the magnetic induction device, thereby generating electricity. The principle is that the coil is fixed and the magnet rotates around the coil, thereby cutting the magnetic flux lines to generate electricity. Compared with the original device that directly uses a generator to generate electricity, it has an additional flywheel for energy storage and power generation, thereby improving the power generation efficiency.

[0035] (6) The present invention has an independent battery that can be connected to the locomotive auxiliary power system to provide emergency protection for other electrical equipment in the event of an emergency during train operation.

[0036] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

[0040] Figure 4 This is a schematic diagram of the connection between the magnetic induction generator and the flywheel in the energy recovery device;

[0041] Figure 5 is a cross-sectional view of the interior of the magnetic induction power generation mechanism in the energy recovery device;

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

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

[0044] Reference numerals

[0045] 1. Generator mechanism; 101. Rotating disc; 102. First shaft; 103. First pulley; 104. First belt; 105. Second pulley; 106. Generator; 2. Belt transmission mechanism; 201. Third pulley; 202. Fourth pulley; 203. Second belt; 204. Second shaft; 205. Fifth pulley; 206. Third belt; 207. Pulley; 208. Pulley connecting plate; 209. Flywheel; 210. Servo; 211. Third shaft; 212. Sixth pulley; 3. Magnetic induction generator mechanism; 301. Coil; 302. Magnet; 303. Magnet fixing plate; 304. Chassis. DETAILED DESCRIPTION

[0046] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0047] Unless otherwise defined, the technical or scientific terms used in the present invention shall have the usual meanings understood by persons of ordinary skill in the field to which the present invention belongs. The words "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0048] Example 1

[0049] The present invention provides a power supply system for wheel rotation energy recovery sensors on freight trains, comprising a control board, an onboard main power supply, an energy recovery device, power supply circuits, sensor circuits, various train sensor components, and an onboard auxiliary power supply. The energy recovery device is mounted on the outside of the wheels of the train bogies and is connected to the onboard main power supply via power supply circuits. The energy recovery device is also connected to the control board via power supply circuits and sensor circuits. The onboard main power supply is also connected to various train sensor components and the onboard auxiliary power supply via power supply circuits.

[0050] The onboard main power supply is a battery with overload protection installed in the train bogie. When the energy recovery device begins generating power, the onboard main power supply receives power and supplies power to the train's various sensor components. When the onboard main power supply is fully charged, it automatically transmits power to the onboard auxiliary power supply to prevent overload. The batteries for the onboard main power supply and onboard auxiliary power supply can be selected by the operator based on the operating route and operating environment. Furthermore, in the energy recovery sensor power supply system of this embodiment, the onboard main power supply includes a bus interface with the onboard auxiliary power supply. If the train encounters an accident or a power supply system failure, which prevents power supply, especially if the traction locomotive is a diesel locomotive, and an emergency occurs and the train engine is shut down and unable to power the train, the onboard auxiliary power supply is connected to the onboard main power supply, powering not only the train's various sensor components but also emergency power equipment.

[0051] The various sensor components of the train include: a micro-electromechanical three-axis acceleration sensor, used to monitor the running smoothness and serpentine instability of the freight car. A temperature monitoring sensor, used to monitor the brake shoe status and determine the temperature rise of the wheel and brake shoe when the relief is poor. A displacement sensor, used to monitor the overloading and unbalanced loading of the freight car. A laser ranging sensor, used to monitor the deflection of the spring, using the characteristics of high dynamic response to achieve spring expansion and contraction measurement. A speed sensor, used in conjunction with a high-definition color linear array scanning unit, to monitor the moving railway freight train in real time. An axle temperature monitoring sensor, used to monitor the bearing status. A pressure sensor, used to monitor the event recorder on the railway train to provide important information in the event of an accident. A photoelectric sensor, used to identify freight train information.

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

[0053] like Figure 2As shown, the generator mechanism 1 includes a rotating disc 101, and a first circular shaft 102 is fixedly connected at the center of one end surface of the rotating disc 101. A first pulley 103 is fixed through the end of the first circular shaft 102 away from the rotating disc 101. The first pulley 103 is rotatably connected to the 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 has a built-in speed sensor for measuring the speed of the generator 106 in real time.

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

[0055] A servo 210 is mounted on one side of the sixth pulley 212. A torque sensor is built into the servo 210 to measure the belt's torque in real time. A pulley connecting plate 208 is fixedly connected to the output end of the servo 210. A pulley 207 is rotatably mounted on the other side of the pulley connecting plate 208. This pulley 207 is in sliding connection with the third belt 206.

[0056] like Figure 4 and Figure 5 As shown, the magnetic induction power generation mechanism 3 includes a coil 301 fixed on the third circular shaft 211, a magnet 302 is fixed at the center of the outer circular end of the coil 301, the outer circular end surface of the magnet 302 is fixed on the magnet fixing plate 303, and 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 speed sensor, the servo 210 and the torque sensor. By comparing the real-time data with the set control parameters, the tightness of the servo 210 is controlled to make the magnetic induction generator 3 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 enhance 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 easy to operate. The energy recovery device and control parameters can be selected to match different operating environments, traction conditions, and traction vehicle performance. The energy recovery device of this embodiment provides two energy recovery structures, effectively improving energy conversion efficiency. The power generation structure within the energy recovery device can be controlled by the control board to provide multiple different power generation modes: one combining the magnetic induction generator 3 with the generator 106, and the other using the generator 106 alone.

[0059] The operation method of the energy recovery sensor power supply system of this embodiment is as follows: Figure 6 As shown, the specific steps include:

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

[0061] The control parameters that match the operating circuit are set in the control mainboard to control the energy recovery device to generate electricity.

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

[0063] The onboard main power supply is powered on to start storing electricity and supplying power to various sensor components of the train.

[0064] The various sensor components of the train are powered on and start working, displaying the various 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 follows: Figure 7 As shown, the energy recovery device needs to be installed on the outside of the wheel of the train bogie, and no requirements are made on 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 first supplies power to the control main board, and the remaining power is supplied to the on-board main power supply. The control main board receives power and receives the speed signal from the speed sensor built into 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 speed of the generator 106 reaches the preset requirement, the control main board controls the servo 210 to operate, tightens the transmission belt, and then transmits the power of the belt drive to the magnetic induction generator 3. At the same time, the control main board receives real-time data from the torque sensor and the power generation performance data of the energy recovery device.

[0066] The electrical energy generated by the generator 106 or the magnetic induction generator 3 is transmitted to the onboard main power supply, which then supplies power to the various sensor components on the train, enabling them to operate. When the onboard main power supply is fully charged, the control power supply circuit automatically transmits excess power to the onboard auxiliary power supply.

[0067] The control board collects real-time data on generator 106 speed, torque data on the belt drive after the servo 210 is tightened, and related power generation data. Using this data, technicians can adjust various control parameters and, in turn, the power generation mode, thereby improving power generation performance. Control parameters can be adjusted based on the performance of the traction locomotive, the speed and length of the route, and technicians can select a control board with the right computing power and memory based on the specific situation.

[0068] Therefore, the present invention adopts the above-mentioned freight train wheel rotation energy recovery sensor power supply system, which can efficiently recover and utilize the energy released during the train operation, optimize the power supply system, improve the energy utilization 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 rather than to limit the same. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solutions of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A power supply system for a wheel rotation energy recovery sensor of a freight train, characterized by: It includes a control mainboard, an on-board main power supply, an energy recovery device, a power supply circuit, a sensor circuit, various train sensor components and an on-board auxiliary power supply; the energy recovery device is installed on the outside of the wheel of the train bogie, the energy recovery device is connected to the on-board main power supply through the power supply circuit, the energy recovery device is connected to the control mainboard through the power supply circuit and the sensor circuit, and the on-board main power supply is connected to the various train sensor components and the on-board auxiliary power supply through the power supply circuit; The energy recovery device includes a generator mechanism, a belt transmission mechanism and a magnetic induction power generation mechanism, wherein the generator mechanism and the magnetic induction power generation mechanism are respectively connected to both sides of the belt transmission mechanism; The generator mechanism includes a rotating disc, a first shaft is fixedly connected to the center of one end surface of the rotating disc, a first pulley is fixed through the end of the first shaft away from the rotating disc, the first pulley is rotatably connected to the second pulley via a first belt, the second pulley is fixedly connected to the output end of the generator, and the generator has a built-in speed sensor; The belt transmission mechanism includes a third pulley, the third pulley is coaxially installed with the first pulley and is located on the outside of the first pulley, the third pulley is rotatably connected to the fourth pulley through the second belt, the center of the fourth pulley is fixedly connected to the second shaft, one end of the second shaft away from the fourth pulley is fixedly connected to the center of the fifth pulley, the fifth pulley is rotatably connected to the sixth pulley through the third belt, the center of the sixth pulley is fixedly connected to the third shaft, and the third shaft is fixedly connected to the center of the flywheel; A steering gear is provided on one side of the sixth pulley, a torque sensor is built into 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; The magnetic induction power generation mechanism includes a coil fixed on the third circular shaft, a magnet is fixed at the cocenter of the outer circular end of the coil, the outer circular end surface of the magnet is fixed on a magnet fixing plate, one end of the magnet fixing plate is fixed on a chassis, and the chassis is connected to the third circular shaft and is located at an end away from the sixth pulley.

2. The power supply system for a wheel rotation energy recovery sensor of a freight train according to claim 1, characterized in that: The control main board is connected to the generator, speed sensor, steering gear and torque sensor. By comparing real-time data with the set control parameters, the tightness of the steering gear is controlled to enable the magnetic induction power generation mechanism 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 enhance the power generation performance.

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

4. The power supply system for a wheel rotation energy recovery sensor of a freight train according to claim 1, characterized in that: The train sensor components include: A micro-electromechanical three-axis acceleration sensor is used to monitor the running stability and serpentine instability of the truck; Temperature monitoring sensor, used to monitor the brake shoe status and determine if the wheel and brake shoe temperatures rise when the mitigation is poor; Displacement sensors are used to monitor overloading and uneven loading of freight vehicles; Laser ranging sensor, used to monitor spring deflection, uses high dynamic response characteristics to achieve spring expansion and contraction measurement; Speed ​​sensor, used in conjunction with a high-definition color line array scanning unit to monitor moving railway freight trains in real time; Axle temperature monitoring sensor, used to monitor bearing status; Pressure sensors used to monitor event recorders on railway trains, which provide vital information in the event of an accident; Photoelectric sensor, used to identify freight train information.

5. A power supply system for a wheel rotation energy recovery sensor of a freight train according to any one of claims 1 to 4, characterized in that: The operation method of the system includes the following steps: Select the matching energy recovery device based on the different operating environments; Set the control parameters that match the operating circuit in the control mainboard to control the energy recovery device to generate electricity; When a freight train is running, the wheels drive the energy recovery device to generate electricity; The onboard main power supply is powered on to start storing electricity and supplying power to various sensor components of the train; The various sensor components of the train are powered on and start working, displaying the various operating data of the train in real time.

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