One-way continuous rotation magneto-electric combined non-road vehicle vibration energy recovery device

Abstract

The present application relates to a one-way continuous rotary magneto-electric combined off-road vehicle vibration energy recovery device, which is composed of an energy transmission mechanism, a connecting rod mechanism, a magneto-electric cover, a coil and a piezoelectric rotating mechanism, and is composed of two power generation modules of magneto-electricity and piezoelectricity. The vibration receiving plate of the device collects the vibration of agricultural machinery and other off-road vehicles, causes the up-and-down reciprocating motion of the energy transmission mechanism, changes the magnetic flux around the magneto-electric cover, generates current in the coil outside the cover, realizes magneto-electricity power generation. The energy is transmitted from the energy transmission mechanism to the connecting rod mechanism, the one-way baffle in the connecting rod mechanism drives the device, realizes the one-way continuous rotation of the piezoelectric rotating shaft, overcomes the inertia and eccentric moment, the energy is transmitted from the connecting rod mechanism to the piezoelectric rotating mechanism, the rotating drive piece drives the piezoelectric sheet, generates current, and completes piezoelectric power generation. The current generated by magneto-electricity and piezoelectricity is stored into a super capacitor through an energy recovery circuit. The disclosed embodiment can realize continuous power generation, has a wide range of use and high efficiency.

Description

Technical Field

[0001] This invention belongs to the field of agricultural machinery technology, and specifically relates to a unidirectional continuous rotating piezoelectric combined non-road vehicle vibration energy recovery device. Background Technology

[0002] Currently, the collection efficiency of vibration energy recovery devices at home and abroad is relatively low. When non-road vehicles such as tractors and combine harvesters operate in complex farmland environments, the whole machine vibrates greatly, resulting in serious vibration energy loss, and there is high potential for energy recovery.

[0003] Currently, vibration energy recovery methods mainly include three types: electrostatic, magnetoelectric, and piezoelectric. Electrostatic methods primarily use electrostatic generators to convert vibration energy into electrical energy, but their efficiency is very low compared to magnetoelectric and piezoelectric methods. Magnetoelectric methods mainly use electromagnetic transducers to convert vibration energy into electrical energy. Piezoelectric methods generate electrical energy by applying force to piezoelectric materials, causing them to exhibit a positive piezoelectric effect. Piezoelectric and magnetoelectric methods have better energy conversion efficiency and are more practical.

[0004] Currently, most vibration energy recovery devices suffer from discontinuous energy recovery. Rotary energy harvesting devices struggle to overcome the problems of energy rotation axis inertia and eccentric torque, have complex structures, rely on installation space for structural design, are difficult to apply to off-road vehicles, have significant application limitations, and have low power generation efficiency. Summary of the Invention

[0005] The purpose of this invention is to apply this device to off-road vehicles such as tractors and combine harvesters, installing it near the engine mount of agricultural machinery, or at locations where working parts such as headers and threshing machines vibrate intensely, to collect their vibrational energy. Combining electromagnetic and piezoelectric power generation methods, a novel energy recovery device is designed to fully utilize the vibration receiving plate to collect vibrational energy, completing two energy recovery processes and improving energy recovery efficiency. The piezoelectric recovery plate uses a unidirectional baffle actuation device to ensure the continuity of kinetic energy transmission in the energy recovery device, overcome the eccentric torque and inertia of the rotating shaft, and ensure that the rotating shaft and rotating baffle always rotate in the same direction to actuate the piezoelectric plate for power generation, thereby improving the energy recovery efficiency of the vibration energy recovery device.

[0006] A unidirectional continuous rotating piezoelectric combined non-road vehicle vibration energy recovery device is characterized in that the device includes an energy transmission mechanism 1, a return spring 2, a magnetoelectric cover 3, a coil 4, a linkage mechanism 5, and a piezoelectric rotating mechanism 6.

[0007] The return spring 2 is welded to the magnetoelectric cover 3, and the axial center of the return spring 2 is coaxial with the thin energy transmission shaft 12.

[0008] The energy transmission mechanism consists of a vibration energy receiving plate 11, a thin energy transmission shaft 12, an energy transmission plate 13, a permanent magnet 14, and a thick energy transmission shaft 15. The vibration energy receiving plate 11 is closely attached to the body of non-road vehicles such as tractors and combine harvesters. The energy receiving plate 11 is welded to the thin energy transmission shaft 12, the thin energy transmission shaft 12 is welded to the energy transmission plate 13, and the energy transmission plate 13 is welded to the thick energy transmission shaft 15. The permanent magnet 14 is uniformly welded to the lower surface of the energy transmission plate 13, thus forming a linear motion transmission mechanism.

[0009] The thin energy transmission shaft 12 is connected to the magnetoelectric cover through three bearings in the up and down directions. The bearings and the magnetoelectric cover 3 are fitted with an interference fit. The coil 4 is evenly wound on the outer surface of the magnetoelectric cover 3. The magnetoelectric cover 3 is fixed to the outer box through a shaft.

[0010] The linkage mechanism 5 consists of a long connecting rod 19, a short connecting rod 17, and a one-way baffle actuation device 18. The long connecting rod 19 is connected to the energy transmission mechanism 1 by a pin, and the long connecting rod 19 is connected to the short connecting rod 17 by a pin and the long connecting rod is fixed to rotate in the same direction by the long connecting rod. The short connecting rod 17 is connected to the rotating shaft 16 by the one-way baffle actuation device 18.

[0011] The one-way baffle actuation device 18 consists of a baffle 21, a one-way device outer ring rotating shaft 22, a one-way device outer ring return spring 23, a one-way device inner ring 24, and a one-way device outer ring 25. The baffle 21 and the one-way device outer ring rotating shaft 22 are fitted with a clearance fit. The one-way device outer ring return spring 23 is welded to the inner wall of the one-way device outer ring 25. The one-way device outer ring 25 and the short connecting rod 17 are fitted with an interference fit. The one-way device inner ring 24 and the rotating shaft 16 are fitted with an interference fit.

[0012] The piezoelectric rotation mechanism 6 consists of a rotating shaft 16, a ball bearing 26, a bearing housing 20, a piezoelectric material sheet 27, a rotating paddle 28, and a piezoelectric housing 29. The rotating shaft 16 is fixedly installed by the ball bearing 26, and the ball bearing 26 and the bearing housing 20 are fitted with a clearance fit. The bearing housing 20 is fixed to the vibrating machine body by bolts. The rotating paddle 28 is welded to the rotating shaft 16, and the length of the rotating paddle 28 reaches the middle position of the piezoelectric material sheet 27.

[0013] The piezoelectric housing 29 is fixedly installed to the outer box by bolts, and the piezoelectric material sheet 27 inside the piezoelectric housing 29 is glued to the inside with strong adhesive and is evenly distributed on the surface of the inner surface of the piezoelectric housing 29.

[0014] The vibration energy recovery device is fixed to the housing by bolts. The housing is fixed near the engine bracket of a non-road vehicle such as a tractor or combine harvester, or at a location where the working parts such as the header or threshing machine vibrate violently.

[0015] The working principle of this invention is as follows: The vibration receiving plate 11 receives vertical vibrations from the surface of the support near the engine of a tractor or combine harvester, or from the surface of the working parts such as the header or threshing machine where vibrations are severe. Magnets are welded to the surface of the energy receiving plate 13 inside the energy transfer mechanism 1. The up-and-down movement of the magnetoelectric cover 3 causes a change in magnetic flux, generating current through the uniformly wound coil 4. The energy transfer mechanism 1 transmits vibration energy through the linkage mechanism 5. The unidirectional baffle actuation device 18 completes the unidirectional continuous rotation of the rotating shaft 16. The symmetrical structures on both sides receive energy in opposite directions, ensuring that energy recovery can be initiated and completed at any position of the linkage mechanism 5. The rotating shaft 16 drives the rotating paddle 28 to actuate the piezoelectric material sheet 27 in the piezoelectric housing 29. The piezoelectric material sheet 27 generates current. The current generated by the coil 4 and the piezoelectric material sheet 27 is connected to the energy recovery circuit through wires. The generated alternating current is converted to direct current through a rectifier bridge, and finally, it is recovered and stored by a supercapacitor.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. This invention is applied to non-road vehicles such as tractors and combine harvesters to recover their vibration energy. A new vibration energy recovery device is designed by combining electromagnetic and piezoelectric power generation methods. It makes full use of the vibration energy received by the vibration receiving plate to complete two energy recovery processes and improve the energy recovery efficiency.

[0018] 2. In this invention, a unidirectional baffle actuation device is selected in the piezoelectric recovery plate to ensure the continuity of kinetic energy transmission of the device, overcome the eccentric torque and inertia of the rotating shaft, and ensure that the rotating shaft and the rotating actuation plate always rotate in the same direction to actuate the piezoelectric plate to generate electricity. The piezoelectric rotating mechanism has a symmetrical structure, which can continuously collect energy, improve the energy recovery efficiency of the vibration energy recovery device, and maximize the possibility of converting the collected vibration energy into electrical energy.

[0019] 3. Compared with existing vibration energy recovery devices, it has a more complete structure, lower manufacturing cost, generates more electrical energy under the same vibration conditions, and provides greater power efficiency.

[0020] 4. The installation conditions of this invention are stable. The device is installed on the vehicle body surface with bolts, making it suitable for use on non-road vehicles such as tractors and combine harvesters. It works stably under large vibrations, is not easily damaged, and saves costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a unidirectional continuous rotating piezoelectric combined non-road vehicle vibration energy recovery device. The energy recovery circuit connecting wires and the mounting box are not shown in the diagram.

[0022] Figure 2 Schematic diagram of energy transfer mechanism

[0023] Figure 3 Schematic diagram of magnet distribution on energy transfer plate

[0024] Figure 4 Schematic diagram for removing the magnetoelectric cover and coil interior

[0025] Figure 5 Schematic diagram of linkage transmission mechanism

[0026] Figure 6 Full sectional view of the front of the one-way baffle actuation device

[0027] Figure 7 Partial sectional view of the side of the one-way baffle actuation device

[0028] Figure 8 Partial view of a piezoelectric rotary generator

[0029] Figure 9 Schematic diagram of piezoelectric housing

[0030] Figure 10 Schematic diagram of energy recovery circuit

[0031] In the diagram, 1-energy transfer mechanism, 2-return spring, 3-magnetic cover, 4-coil, 5-linkage mechanism, 6-piezoelectric rotation mechanism, 11-vibration receiving plate, 12-thin energy transfer shaft, 13-energy receiving plate, 14-magnet, 15-thick energy transfer shaft, 16-rotation shaft, 17-short connecting rod, 18-one-way baffle actuation device, 19-long connecting rod, 20-bearing seat, 21-baffle, 22-one-way device outer ring rotation shaft, 23-one-way device outer ring return spring, 24-one-way device inner ring, 25-one-way device outer ring, 26-ball bearing, 27-piezoelectric material sheet, 28-rotating lever, 29-piezoelectric housing. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to embodiments and accompanying drawings, but the scope of protection of the present invention is not limited thereto.

[0033] like Figure 1 The diagram shows the overall structure of a unidirectional continuous rotating piezoelectric combined non-road vehicle vibration energy recovery device. The unidirectional continuous rotating piezoelectric combined non-road vehicle vibration energy recovery device consists of 1-energy transmission mechanism, 2-return spring, 3-magnetic cover, 4-coil, 5-linkage mechanism, and 6-piezoelectric rotation mechanism.

[0034] The energy transmission mechanism 1 includes a vibration receiving plate 11, a thin energy transmission shaft 12, an energy transmission plate 13, a magnet 14, and a coarse energy transmission plate 15. The vibration receiving plate 11 is placed face down against the support near the engine of a tractor or combine harvester, or on the surface of the working parts such as the header or threshing machine where vibration is intense. Vibration energy is transmitted sequentially through the energy receiving plate 11, the thin energy transmission shaft 12, the energy transmission plate 13, and the coarse energy transmission plate 15. The four structures are welded together in sequence.

[0035] The magnetoelectric power generation section comprises a magnetoelectric enclosure 3, a coil 4, and a magnet 14, which together generate electricity. The magnet 14 is welded to the energy transfer plate 13 and moves within the magnetoelectric enclosure 3, causing a change in magnetic flux, which in turn generates current in the coil 4.

[0036] The linkage mechanism 5 includes a long link 19, a short link 17, and a one-way baffle actuation device 18. The long link 19 receives vibration energy from the energy transmission mechanism 1 and transmits it to the short link 17. The two are connected by a pin and fixed at the connection point by a coupling to rotate in the same direction. The outer ring 25 of the one-way baffle actuation device 18 is interference-fitted with the short link 17, the inner ring 24 of the one-way device is interference-fitted with the rotating shaft 16, and the inner ring 24 of the one-way device is clearance-fitted with the outer ring 25 of the one-way device. The one-way baffle actuation device 18 completes the one-way rotation of the rotating shaft 16.

[0037] The piezoelectric rotating mechanism 6 includes a rotating shaft 16, a ball bearing 26, a bearing housing 20, a piezoelectric material sheet 27, a rotating paddle 28, and a piezoelectric housing 29. The rotating shaft 16 receives energy transmitted from the linkage mechanism 5. The rotating shaft 16 is fixedly mounted on the bearing housing 20 via the ball bearing 26. The rotating paddle 28 is welded to the outermost end of the rotating shaft 16, and its length reaches the middle position of the piezoelectric material sheet 27 to ensure a larger amount of deformation and achieve higher power generation efficiency.

[0038] The energy recovery circuit recovers the alternating current generated by the piezoelectric and magnetoelectric power generation components, converts it into direct current through a rectifier bridge, and finally collects and stores it through a supercapacitor.

[0039] Working process of a unidirectional continuous rotating piezoelectric combined non-road vehicle vibration energy recovery device:

[0040] The vibration receiving plate 11 is placed downwards against the support near the engine of a tractor or combine harvester, or on the surface of a location where the working parts such as the header or threshing machine vibrate violently. It receives the vertical vibration transmitted from the engine or working parts of off-road vehicles. The thin energy transmission shaft 12 and the energy transmission plate 13 transmit the vibration downwards. A magnet 14 is welded to the energy transmission plate 13, and a coil 4 is wound around the outside of the magnetoelectric cover 3. The magnetic flux changes as the thin energy transmission shaft 12 and the energy transmission plate 13 move up and down, causing a current to be generated in the coil 4. The energy transmission plate 13 receives the vibration, and the thick energy transmission shaft 15 transmits it to the linkage mechanism 5. The long connecting rod 19 drives the short connecting rod 17 to rotate. The short connecting rod 17 and the rotating shaft 16 transmit rotational energy through the one-way baffle actuation device 18. Due to the one-way rotational action of the one-way baffle actuation device 18, when the outer ring 25 of the one-way device rotates clockwise (viewed from the inside out), the baffle on the inner wall of the outer ring 25 of the one-way device actuates the inner ring 24 of the one-way device, causing the inner and outer rings to rotate in the same direction. The inner ring 24 of the one-way device drives the rotation of the outer ring 25. The rotating shaft 16 rotates clockwise; when the simple harmonic vibration returns, the energy transfer mechanism 1 moves upward, the long connecting rod 19 drives the short connecting rod 17 to rotate in the opposite direction, and when the outer ring 25 of the one-way baffle actuation device rotates counterclockwise, the baffle 21 is pushed into the return groove by the inner ring 24 of the one-way device. The return groove is equipped with a return spring 23 of the outer ring of the one-way device to ensure that the baffle 21 can leave the return groove for the next clockwise actuation of the inner ring 24 of the one-way device; the rotating shaft 16 continues to rotate in the original direction of rotation. The symmetrical structure on the other side receives the rotation in the opposite direction. When this device is running, one side of the piezoelectric rotating mechanism 6 is always generating piezoelectric power, which can ensure that the linkage mechanism 5 can be started and energy recovery can be completed at any position. The rotating shaft 16 is fixed by ball bearing 26 and bearing seat 20. The outer side of the rotating shaft 16 is welded to the rotating actuation plate 28. The piezoelectric housing 29 is fixed to the outer box by bolts. The fixing device stably collects vibration. Rotating lever 28 rotates and actuates the piezoelectric material sheet 27 inside the piezoelectric housing 29. Under pressure, the piezoelectric material sheet 27 generates current. Wires are led out from the corresponding positions of each piezoelectric material sheet 27 on the outside of the piezoelectric housing 29 to transmit the current generated by the piezoelectric material sheet 27 and the current generated in the coil 4 to the energy recovery circuit. The collected alternating current is converted into direct current, and the supercapacitor stores the current for use in the electrical equipment of off-road vehicles such as tractors or combine harvesters.

[0041] This invention designs an energy recovery circuit, such as... Figure 10 In the first stage, switch S1 is closed, and inductor L1 receives the current generated by piezoelectric material sheet 27 and coil 4. The voltage across inductor L1 increases. When the voltage across inductor L1 is greater than the forward voltage of the diode in the rectifier bridge, the diode conducts and converts the collected AC current into DC current. The circuit voltage is then stabilized by the voltage regulator board, and supercapacitor C1 collects electrical energy to power the external load R1 and electrical appliances.

[0042] The embodiments described above are merely preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Any obvious improvements, substitutions or modifications that can be made by those skilled in the art are within the protection scope of the present invention.

Claims

1. A unidirectional continuous rotating piezoelectric combined non-road vehicle vibration energy recovery device, characterized in that, include: The energy transfer mechanism (1), return spring (2), magnetoelectric cover (3), coil (4), linkage mechanism (5), and piezoelectric rotation mechanism (6) are included. The return spring (2) is welded to the magnetoelectric cover (3), and the axial center of the return spring (2) is coaxial with the thin energy transfer shaft (12). The energy transfer mechanism (1) consists of a vibration receiving plate (11), a thin energy transfer shaft (12), an energy transfer plate (13), a permanent magnet (14), and a thick energy transfer shaft (15). The vibration receiving plate (11) is in close contact with the surface of the non-road vehicle body. The vibration receiving plate (11) is welded to the thin energy transfer shaft (12), and the thin energy transfer shaft (12) is welded to the energy transfer plate (13). The energy transfer plate (13) is welded to the thick energy transfer shaft (15), and the permanent magnet (14) is uniformly welded to the lower surface of the energy transfer plate (13) to form a linear motion transmission mechanism; the thin energy transfer shaft (12) is connected to the magnetoelectric cover (3) through three bearings in the up and down motion directions. The bearings and the magnetoelectric cover (3) are fitted with an interference fit. The coil (4) is uniformly wound on the outer surface of the magnetoelectric cover (3). The magnetoelectric cover (3) is fixed to the outer box through a shaft; the linkage mechanism (5) consists of a long connecting rod (19), a short connecting rod (17), and a one-way baffle actuation device (18); the long connecting rod (19) is connected to the energy transfer mechanism (1) by a pin. The long connecting rod (19) and the short connecting rod (17) are connected by a pin, and are fixed to rotate in the same direction at the connection point by a connecting shaft. The short connecting rod (17) and the rotating shaft (16) are connected by a one-way baffle actuating device (18). The one-way baffle actuating device (18) consists of a baffle (21), a one-way device outer ring rotating shaft (22), a one-way device outer ring return spring (23), a one-way device inner ring (24), and a one-way device outer ring (25). The baffle (21) and the one-way device outer ring rotating shaft (22) are fitted with a clearance fit. The one-way device outer ring return spring (23) is welded to the inner surface of the one-way device outer ring (25). The one-way device outer ring (25) and the short connecting rod (17) are connected by a pin. 17) The fit is an interference fit. The inner ring (24) of the one-way device and the rotating shaft (16) are fitted with an interference fit. The piezoelectric rotating mechanism (6) consists of a rotating shaft (16), a ball bearing (26), a bearing seat (20), a piezoelectric material sheet (27), a rotating paddle (28), and a piezoelectric housing (29). The rotating shaft (16) is fixedly installed by the ball bearing (26). The ball bearing (26) and the bearing seat (20) are fitted with a clearance fit. The bearing seat (20) is fixed to the vibrating machine body by bolts. The rotating paddle (28) is welded to the rotating shaft (16). The outer end of the rotating paddle (28) reaches the middle position of the piezoelectric material sheet (27).

2. The unidirectional continuous rotating piezoelectric combined non-road vehicle vibration energy recovery device according to claim 1, characterized in that, The piezoelectric housing (29) is fixedly installed to the outer box by bolts. The piezoelectric material sheet (27) inside the piezoelectric housing (29) is glued to the inside with strong adhesive and is evenly distributed on the inner surface of the piezoelectric housing (29).

3. The unidirectional continuous rotating piezoelectric combined non-road vehicle vibration energy recovery device according to claim 1, characterized in that, The vibration energy recovery device is fixed inside the housing by bolts, and the housing is fixed to the surface of the support where non-road vehicles vibrate violently.

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