A flexible self-power generation device for trains and a power generation control method

Abstract

The present invention discloses a flexible self-power generation device for trains, which includes a housing fixed on the bottom plate of the side beam of the bogie of the rail train and a power generation assembly installed in the housing; the power generation assembly includes a main rotating shaft with balls, the main rotating shaft is limited on the housing through a transverse rotating shaft, and an electromagnetic power generation component and a piezoelectric power generation component are arranged on the main rotating shaft. The device provided by the present invention generates electricity by utilizing the track without damaging the track, enhancing the endurance of the train; at the same time, the generated electricity can be supplied to the electrical equipment on the train, which is convenient to use; the provided control method enables the device to generate electricity with the maximum power during train braking, avoiding huge kinetic energy waste during train braking; enables the device to generate electricity with the minimum power during the uniform running of the train, avoiding energy loss caused by normal power generation, prolonging the service life of the device, and reducing the maintenance cost.

Description

Technical Field

[0001] The present invention belongs to the technical field of rail train power generation, and specifically relates to a train flexible self-power generation device and a power generation control method. Background Art

[0002] Rail transit, as an efficient and convenient mode of transportation, has been widely applied globally. The rapid development of the railway system is not only reflected in the field of high-speed railways but also covers various forms such as urban rail transit and scenic area rail trains for tourism sightseeing. With the popularization of rail transit and the progress of technology, how to improve the energy utilization efficiency of trains and reduce the dependence on external energy supply has become one of the important directions for the development of rail train technology.

[0003] At present, most rail trains rely on external power grids or on-vehicle battery systems for power supply. However, in specific scenarios such as tourist scenic areas, due to reasons such as high cost of power grid laying and strict environmental requirements, the deployment of external power supply systems has many inconveniences. Therefore, enhancing the self-power generation ability of rail trains to meet the energy requirements during train operation has become an effective solution.

[0004] Current technologies for train self-power generation mostly focus on kinetic energy recovery and braking energy reuse. During train operation, especially during the braking phase, the kinetic energy of the train is often wasted as heat. Although some technologies have tried to convert the kinetic energy during braking into electrical energy through energy recovery devices, the existing devices have problems such as complex structure, low efficiency, and high maintenance costs. In addition, the long-term operation of energy recovery devices may cause damage to the tracks.

[0005] At the same time, most of the existing rail train kinetic energy recovery technologies are used in high-speed railway systems and are not widely applied to scenic area sightseeing trains. Scenic area rail trains are usually small in size, light in vehicle body, and have a low running speed, which makes it difficult to effectively apply the existing power generation technologies to scenic area rail trains. Summary of the Invention

[0006] The purpose of the present invention is to provide a train flexible self-power generation device and a power generation control method that can improve the train's endurance and reduce kinetic energy waste without damaging the tracks.

[0007] The flexible self - power generation device for trains provided by the present invention includes a housing fixed on the bottom plate of the side beam of the bogie of the rail train and a power generation assembly installed in the housing; the power generation assembly includes a main rotating shaft with balls, the main rotating shaft is limited on the housing through a transverse rotating shaft, and an electromagnetic power generation component and a piezoelectric power generation component are arranged on the main rotating shaft; the electromagnetic power generation component includes a rotor, a first rotating shaft sleeve, a second rotating shaft sleeve, a vertical rotating shaft and a stator winding; a cylindrical rotor is arranged in the middle of the main rotating shaft, and the rotor will rotate with the rotation of the main rotating shaft; a first rotating shaft sleeve is sleeved outside the main rotating shaft; a vertical rotating shaft along the vertical direction is fixedly connected to the bottom end of the first rotating shaft sleeve, and the end of the vertical rotating shaft is connected to the bottom end of the housing; the vertical rotating shaft is a telescopic sleeve rod, and a shock - absorbing spring is arranged on its outer side to support the second rotating shaft sleeve; a second rotating shaft sleeve is sleeved outside the vertical rotating shaft; on the inner surface of the first rotating shaft sleeve outside the main rotating shaft, a stator winding is attached; the stator winding is arranged on the first rotating shaft sleeve at an angle with a circumferential phase difference of 2 / 3π; a transverse rotating shaft along the length direction of the main rotating shaft is connected to the inner side of the main rotating shaft, and the end of the transverse rotating shaft is connected to the housing; the transverse rotating shaft is a telescopic sleeve rod, and a shock - absorbing spring is arranged on its outer side to support the main rotating shaft.

[0008] In one embodiment of the above - mentioned device, the piezoelectric power generation component includes a gear and a piezoelectric beam; a cylindrical gear is fixedly arranged behind the main rotating shaft, and piezoelectric beams arranged in a circumferential form are arranged behind the gear, the front ends of the piezoelectric beams are in contact with the edge of the gear, and the rear ends of the piezoelectric beams are inserted into the power collection component of the housing.

[0009] In one embodiment of the above - mentioned device, balls are fixedly sleeved outside the main rotating shaft, and a spherical rubber outer sleeve is sleeved on the balls.

[0010] In one embodiment of the above - mentioned device, the housing is a hollow high - strength rectangular box with an open front and a semi - open top.

[0011] In one embodiment of the above - mentioned device, six groups of power generation assemblies are evenly arranged in the inner cavity of the housing at fixed intervals; the first rotating shaft sleeves and the second rotating shaft sleeves between adjacent power generation assemblies are connected and limited to each other through limiting rods.

[0012] In one embodiment of the above - mentioned device, the housing is fixed on the bottom plate of the side beam of the rail train bogie through an upper mounting seat, a swing arm rod, a linear telescopic rod and a connecting column.

[0013] In one embodiment of the above - mentioned device, three connecting columns are arranged on the top surface of the housing at fixed intervals, and each connecting column is respectively clamped and hinged by a swing arm rod; the swing arm rod is composed of two swing arm rods, and its upper part clamps and hinges the upper mounting seat; the upper mounting seat is a hinge ear seat, and three upper mounting seats are detachably fixed on the bottom plates of the two side beams of the rail train bogie through high - strength bolts; the linear telescopic rod connects and fixes the rail train bogie and the swing arm rod.

[0014] A control method for flexible self - power generation of a train using one of the above - mentioned devices, the steps are as follows:

[0015] Step 1: Install multiple such devices at fixed intervals on each carriage of the rail train.

[0016] Step 2: Obtain the power consumption of the electrical equipment on each carriage of the rail train and the running condition of the rail train.

[0017] Step 3: Make a judgment based on the data obtained in Step 2 and adjust the state of the device.

[0018] Step 4: When the train brakes, it is in a full - power generation state, and the linear telescopic rods of all devices are driven to make the balls of the power generation components closely contact the ground of the rail.

[0019] Step 5: When the train accelerates or runs at a constant speed, it is in a low - power generation state; at this time, judge the power of the electrical equipment on each carriage. For the carriages with the power less than one - third, drive the device to charge the electrical equipment on the carriage; for the carriages with the power greater than or equal to one - third, make the balls of the device separate from the rail.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. Provide a flexible device for train self - power generation, which uses the rail for power generation without damaging the rail, enhancing the train's endurance; at the same time, the generated electricity can be supplied to the electrical equipment on the train, which is convenient to use.

[0022] 2. Provide a control method for power generation using the above - mentioned device, enabling the device to generate electricity with the maximum power when the train brakes, avoiding huge kinetic energy waste during train braking; enabling the device to generate electricity with the minimum power when the train runs at a constant speed, avoiding energy loss during normal power generation, while extending the service life of the device and reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic cross - sectional structure diagram of an embodiment of the present invention.

[0024] Figure 2 is Figure 1 an isometric structure diagram of the power generation component in

[0025] Figure 3 is Figure 2 a side - view cross - sectional structure diagram of

[0026] Figure 4 is Figure 2 an isometric structure diagram of the main rotating shaft, rotor, gear and piezoelectric beam in

[0027] Figure 5 is Figure 2 the front view structural schematic diagram of the main rotating shaft in

[0028] Figure 6 is Figure 4 the axonometric structural schematic diagram of the gear and the piezoelectric beam in

[0029] Figure 7 the schematic diagram of the usage state of the device in this embodiment. Specific implementation manners

[0030] Next, the related technical solutions will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0031] As Figure 1 shown, this train flexible self - generating device disclosed in this embodiment includes an upper mounting seat 1, a swing arm member 2, a linear telescopic rod 3, a connecting column 4, a housing 5, and a power generation assembly 6.

[0032] As Figure 2 shown, the upper mounting seat 1 is a hinge ear seat and is detachably fixed to the bottom plates of the two side beams of the railway train bogie through high - strength bolts.

[0033] The swing arm member 2 is composed of two swing arms. Its upper part hinge - clamps the upper mounting seat; its lower part hinge - clamps the connecting column 4.

[0034] The linear telescopic rod 3 connects and fixes the railway train bogie and the swing arm member 2, and the linear telescopic rod can be extended or contracted under an external drive.

[0035] The housing 5 is a hollow high - strength cuboid box that is open at the front and semi - open at the top. Three connecting columns 4 are arranged on the top surface of the housing at fixed intervals, and a swing arm member 2 and an upper mounting seat 1 are respectively connected to each connecting column.

[0036] As Figure 3 shown, the power generation assembly 6 includes a main rotating shaft 61, a transverse rotating shaft 62, a shock - absorbing spring 63, a rotor 64, a rotating shaft sleeve 65, a vertical rotating shaft 66, a stator winding 67, a gear 68, and a piezoelectric beam 69.

[0037] A ball is fixedly sleeved outside the main rotating shaft 61, and a spherical rubber outer sleeve is sleeved on the ball, which greatly reduces the wear on the rail surface of the rail. At the same time, it can stably exert the self - generating effect while ensuring the safety of train operation.

[0038] The inner side of the main rotating shaft 61 is connected with a transverse rotating shaft 62 along the length direction, and the end of the transverse rotating shaft is connected to the housing. The transverse rotating shaft is a telescopic sleeve rod, and a shock absorbing spring 63 is arranged on the outer side thereof to support the main rotating shaft.

[0039] like Figure 4 As shown, a cylindrical rotor 64 is arranged in the middle of the main shaft 61, and the rotor will rotate along with the rotation of the main shaft.

[0040] The main shaft 61 is provided with a shaft sleeve 65. The bottom end of the shaft sleeve is fixedly connected with a vertical shaft 66 along the vertical direction, and the end of the vertical shaft is connected to the bottom end of the housing. The vertical shaft is a telescopic sleeve rod, and a shock absorbing spring 63 is arranged on the outside to support the shaft sleeve.

[0041] A shaft sleeve 65 is also sleeved outside the vertical shaft.

[0042] like Figure 5 As shown, the inner surface of the shaft sleeve 65 outside the main shaft is fitted with a stator winding 67. The stator winding is arranged on the shaft sleeve at an angle of 2 / 3π of the circumferential phase difference.

[0043] Since the rotor is a magnet and the stator winding is a conductor, the moving path of the rotor intersects with the direction of the magnetic field; when the main shaft drives the stator and rotor to rotate, it will cut the magnetic flux lines to form current, and the current will flow into the collector assembly in the shell through the main shaft and the transverse shaft.

[0044] like Figure 6 As shown, a cylindrical gear 68 is fixedly arranged behind the main shaft 61, and piezoelectric beams 69 arranged in a circumferential form are arranged behind the gear. The front end of the piezoelectric beam contacts the edge of the gear, and the rear end of the piezoelectric beam is inserted into the collector assembly of the shell.

[0045] When the gear rotates continuously with the main shaft, the piezoelectric beam will be continuously moved by the gear to generate a stable potential difference. This part of the potential difference energy flows into the collector assembly through the line.

[0046] Six groups of power generation components 6 are evenly arranged at fixed intervals in the inner cavity of the housing 5. The rotating shaft sleeves of adjacent power generation components are connected and limited to each other by limiting rods.

[0047] like Figure 7 As shown, when the device is used for self-generation, it is necessary to first fix the four upper mounting seats on the bottom plates of the beams on both sides of the rail train bogie corresponding to the positions on both sides of the two rails, and then connect the swing arm rod, linear telescopic rod, connecting column, shell and power generation assembly in sequence; then drive the linear telescopic rod to make the ball of the power generation assembly in close contact with the bottom surface of the rail; when the train starts, the ball will rotate in the opposite direction of the train, and at the same time drive the main shaft to rotate to generate electricity.

[0048] Multiple self-power generation devices are provided at fixed intervals on each carriage of the rail train.

[0049] A control method for self-power generation using this device is as follows:

[0050] Step 1: Multiple of this device are provided at fixed intervals on each carriage of the rail train.

[0051] Step 2: Obtain the power consumption situation of the electrical equipment on each carriage of the rail train and the running situation of the rail train.

[0052] Step 3: Make a judgment based on the data obtained in Step 2 and adjust the state of the device.

[0053] Step 4: When the train brakes, it is in a full-power generation state, and the linear telescopic rods of all devices are driven to make the balls of the power generation components closely contact the ground of the rail to make full use of the huge kinetic energy when the train brakes.

[0054] Step 5: When the train is accelerating or running at a constant speed, it is in a low-power generation state; at this time, judge the power of the electrical equipment on each carriage. For the carriages with the power less than one-third, the device is driven to charge the electrical equipment on the carriage; for the carriages with the power greater than or equal to one-third, the balls of the device are separated from the rail to avoid energy loss generated during normal power generation, while extending the service life of the device and reducing the maintenance cost.

[0055] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the foregoing embodiments have been described in detail, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A flexible self-generating device for a train, characterized in that: It includes a housing fixed on the bottom plate of the side beam of the rail vehicle bogie and a power generation component installed in the housing; the power generation component includes a main rotating shaft with a ball, the main rotating shaft is limited on the housing through a transverse rotating shaft, and an electromagnetic power generation component and a piezoelectric power generation component are arranged on the main rotating shaft; The electromagnetic power generation component includes a rotor, a first rotating shaft sleeve, a second rotating shaft sleeve, a vertical rotating shaft and a stator winding; A cylindrical rotor is arranged in the middle of the main shaft, and the rotor rotates along with the main shaft; A first rotating shaft sleeve is disposed outside the main rotating shaft; a vertical rotating shaft along the vertical direction is fixedly connected to the bottom end of the first rotating shaft sleeve, and the end of the vertical rotating shaft is connected to the bottom end of the shell; the vertical rotating shaft is a telescopic sleeve rod, and a shock absorbing spring is disposed outside the vertical rotating shaft to support the second rotating shaft sleeve; a second rotating shaft sleeve is disposed outside the vertical rotating shaft; The first rotating shaft sleeve outside the main rotating shaft has a stator winding attached to its inner surface; the stator winding is arranged on the first rotating shaft sleeve at an angle of 2 / 3π of circumferential phase difference; The inner side of the main shaft is connected with a transverse shaft along the length direction of the main shaft, and the end of the transverse shaft is connected to the shell; the transverse shaft is a telescopic sleeve rod, and a shock-absorbing spring is arranged on the outer side to support the main shaft.

2. The flexible self-generating device for trains as claimed in claim 1, characterized in that: The piezoelectric power generation component includes a gear and a piezoelectric beam; A cylindrical gear is fixedly arranged behind the main shaft, and piezoelectric beams arranged in a circumferential form are arranged behind the gear. The front end of the piezoelectric beam contacts the edge of the gear, and the rear end of the piezoelectric beam is inserted into the current collecting assembly of the shell.

3. The flexible self-generating device for trains as claimed in claim 1, characterized in that: A ball is fixedly sleeved on the outer side of the main rotating shaft, and a spherical rubber jacket is sleeved on the ball.

4. The train flexible self-generating device according to claim 1, characterized in that: The shell is a hollow high-strength rectangular box with an open front and a semi-open top.

5. The flexible self-generating device for trains as claimed in claim 1, characterized in that: Six groups of power generation components are evenly arranged at fixed intervals in the inner cavity of the shell; the first rotating shaft sleeves and the second rotating shaft sleeves of adjacent power generation components are connected and limited to each other through limiting rods.

6. The train flexible self-generating device according to claim 1, characterized in that: The shell is fixed on the bottom plate of the side beam of the rail vehicle bogie through an upper mounting seat, a swing arm rod, a linear telescopic rod and a connecting column.

7. The flexible self-generating device for trains as claimed in claim 6, characterized in that: The top surface of the shell is provided with three connecting columns at fixed intervals, and each connecting column is clamped and hinged by a swing arm member; the swing arm member is two swing arm members, and the upper part of the swing arm members hinges and clamps the upper mounting seat; the upper mounting seat is a hinged ear seat, and the three upper mounting seats are detachably fixed to the bottom plates of the beams on both sides of the rail train bogie by high-strength bolts; the linear telescopic rod connects and fixes the rail train bogie and the swing arm member.

8. A control method for flexible self-generation of a train using the device of any one of claims 1 to 7, the steps of which are as follows: Step 1: multiple train flexible self-generating devices are arranged at fixed intervals on each carriage of the rail train; Step 2: Obtain the power status of the electrical equipment in each carriage of the rail train and the running status of the rail train; Step 3: Make a judgment based on the data obtained in step 2 and adjust the state of the device; Step 4: When the train brakes, it is in full power generation state, and the linear telescopic rods of all devices are driven to make the ball of the power generation component closely contact with the ground of the rail; Step 5. When the train accelerates or travels at a constant speed, it is in a low-power power generation state. At this time, the power of the electrical equipment on each carriage is judged. For the carriages with less than one-third of the power, the driving device charges the electrical equipment on the carriage; for the carriages with more than one-third of the power, the ball bearings of the device are separated from the rails.

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