Pressure energy storage power generation system based on road pressure

Abstract

The utility model discloses a pressure energy storage power generation system based on road pressure, which comprises a pressure power generation device arranged below a road deceleration strip, and the electric energy output end of the pressure power generation device is electrically connected with a vortex spring energy storage power generation device; the pressure power generation device comprises a first box body, a box cover is arranged at the top of the first box body, a primary generator is horizontally arranged in the first box body, and a gear is arranged on a rotating shaft of the primary generator; a lifting body is longitudinally and slidably assembled in the first box body, a rack which is longitudinally arranged and meshed with the gear is arranged on the side wall of the lifting body, the top of the lifting body penetrates out of the top of the box cover and abuts against the deceleration strip, and an elastic steel sheet with the bottom connected with the first box body is arranged at the bottom of the lifting body; the vortex spring energy storage power generation device comprises a transmission unit, an energy storage unit and a secondary power generation unit which are sequentially connected with the electric energy output end of the primary power generator. The energy conversion efficiency and environmental adaptability can be improved, the maintenance cost is reduced, and the power supply is stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to power generation system technical field, concretely relates to a pressure energy storage power generation system based on road pressure. BACKGROUND

[0002] With the development of society, the development and utilization of new energy are paid more and more attention, especially in the field of transportation infrastructure, how to effectively use the energy generated in the process of vehicle driving becomes a research hotspot. The existing road pressure energy generation technology mainly includes piezoelectric ceramics and hydraulic transmission technology, however, both of these two technologies have certain limitations.

[0003] Although piezoelectric ceramics power generation technology has certain advantages, it also has many problems. On the one hand, piezoelectric ceramics are easily disturbed by the environment, temperature, humidity, erosion and other factors will have a significant impact on its power generation efficiency; on the other hand, the brittleness and fatigue of piezoelectric materials lead to high maintenance costs. In addition, the construction process of piezoelectric ceramics power generation technology is complex, and many problems are faced in the process of burying and integrating, and the equipment is easy to damage, which further increases the use cost and maintenance difficulty.

[0004] Hydraulic transmission power generation technology also has some problems that are difficult to overcome. From the environmental cost point of view, the repair cost of hydraulic oil leakage is high, which can reach 10 - 20 times of the oil itself, and the monitoring cost of pilot enterprises will also increase by 15%. In terms of stability, the hydraulic transmission power generation system performs poorly in low temperature environment, when the temperature is lower than -10℃, the viscosity of hydraulic oil increases sharply, and it needs to idle for 30 minutes for preheating when starting, which seriously affects the normal operation of the system and the timeliness of energy supply.

[0005] Therefore, it is an urgent problem for the technical personnel in the field at present to provide a new type of road pressure energy generation system, improve the energy conversion efficiency, enhance the environmental adaptability, reduce the maintenance cost, and realize stable power supply. UTILITY MODEL CONTENT

[0006] The technical problem to be solved by the utility model is to provide a pressure energy storage power generation system based on road pressure, so as to improve the energy conversion efficiency, enhance the environmental adaptability, reduce the maintenance cost, and realize stable power supply.

[0007] In order to solve the above technical problems, the technical scheme adopted by the utility model is as follows.

[0008] The utility model provides a pressure energy storage power generation system based on road pressure, comprising a pressure power generation device installed below a road speed bump, and a power spring energy storage power generation device electrically connected to the power output end of the pressure power generation device for external power supply.

[0009] Preferably, the elastic steel sheet is 65Mn spring steel with a thickness of 5mm.

[0010] Preferably, the upper surface of the box cover is covered with a rubber pressure bearing layer for buffering vehicle rolling.

[0011] Preferably, the transmission unit comprises a transmission motor electrically connected to the power output end of the primary generator through a cable, a speed reducer motor connected to the rotating shaft of the transmission motor, and a first electromagnetic clutch connected to the output shaft of the speed reducer motor through a one-way bearing.

[0012] Preferably, the energy storage unit comprises a second box body provided with end covers at the left and right ends, a metal shaft rotatably assembled in the second box body through a bearing and having two ends penetrating the end covers, and the left end of the metal shaft being connected to the output shaft of the first electromagnetic clutch.

[0013] Preferably, the secondary power generation unit comprises a second electromagnetic clutch connected to the right end of the metal shaft, and a secondary generator connected to the output shaft of the second electromagnetic clutch.

[0014] Thanks to the above technical solutions, the utility model has the following technical progress.

[0015] The utility model has strong environmental adaptability. The pressure power generation device and the power spring energy storage power generation device are provided to avoid the problems of piezoelectric ceramics being disturbed by environmental factors and poor stability of hydraulic transmission at low temperature, and the system can work stably in various environments, greatly improving the reliability and practicality of the system.

[0016] This invention features low maintenance costs: The integrated pressure power generation device and vortex spring energy storage power generation device result in a relatively simple overall structure, reducing potential failure points and lowering maintenance costs. Furthermore, the simple structure facilitates installation and commissioning, further saving on maintenance workload and costs.

[0017] This utility model is highly efficient in energy utilization: it converts the pressure energy of a vehicle passing over a speed bump into electrical energy for storage and reuse, thereby improving energy utilization efficiency, reducing dependence on traditional energy sources, meeting energy conservation and emission reduction requirements, and having good environmental benefits.

[0018] This utility model has a wide range of applications: it can be used not only for powering road lighting and monitoring equipment, but also for collecting energy in scenarios with pressure or impact, such as elevator braking and ship deceleration when docking. It has broad application prospects and market value.

[0019] This utility model has significant economic benefits: based on the modification of a 7cm speed bump, the investment payback period is only 2.44 months, the net present value is 587,000 yuan per bump, and the internal rate of return exceeds 30%. It can provide sustainable energy solutions for communities and other entities, and has good economic and social benefits. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is an exploded view of the pressure power generation device of this utility model;

[0022] Figure 3 This is an exploded view of the transmission unit of this utility model;

[0023] Figure 4 This is an exploded view of the energy storage unit of this utility model;

[0024] Figure 5 This is an exploded view of the secondary power generation unit of this utility model.

[0025] Among them: 1. Pressure generator, 11. First housing, 12. Housing cover, 121. Rubber pressure bearing layer, 13. Primary generator, 14. Gear, 15. Lifting body, 16. Rack, 17. First support, 2. Spring energy storage generator, 21. Drive motor, 22. Gear motor, 23. First coupling, 24. Bearing seat, 25. One-way bearing, 26. First electromagnetic clutch, 27. Second coupling, 28. Second support, 29. Third support, 210. Second housing, 211. End cover, 212. Bearing, 213. Metal shaft, 214. Spring, 215. Third coupling, 216. Second electromagnetic clutch, 217. Fourth coupling, 218. Secondary generator, 219. Fourth support. DETAILED DESCRIPTION

[0026] The utility model will be further explained in detail in combination with the drawings and specific embodiments.

[0027] A pressure energy storage power generation system based on road pressure, in combination with Figure 1 As shown in the figure, it comprises a pressure power generation device 1 and a vortex spring energy storage power generation device 2, wherein the pressure power generation device 1 is installed below the road speed bump, and the pressure power generation device 1 is used to convert the pressure energy of the vehicle passing through the speed bump into electric energy; the vortex spring energy storage power generation device 2 is electrically connected with the electric energy output end of the pressure power generation device 1, and the vortex spring energy storage power generation device 2 is used to store electric energy and supply electric energy to the outside.

[0028] As Figure 2 shown, the pressure power generation device 1 comprises a first box body 11, the top of the first box body 11 is provided with a box cover 12, the upper surface of the box cover 12 is covered with a rubber pressure bearing layer 121, and the rubber pressure bearing layer 121 is used to buffer the rolling pressure of the vehicle. The inside of the first box body 11 is provided with a primary generator 13, the primary generator 13 is horizontally arranged in the inside of the first box body 11 through a first support 17, and a gear 14 is arranged on the rotating shaft of the primary generator 13. The inside of the first box body 11 is also provided with a lifting body 15, the lifting body 15 is longitudinally slidingly assembled with the first box body 11, the side wall of the lifting body 15 is provided with a longitudinally arranged rack 16, the rack 16 is engaged with the gear 14; the top of the lifting body 15 penetrates out of the top of the box cover 12 and abuts against the speed bump, and the bottom of the lifting body 15 is provided with an elastic steel sheet, the bottom of the elastic steel sheet is connected with the first box body 11, and the elastic steel sheet is 65Mn spring steel with a thickness of 5mm. When the vehicle rolls on the speed bump, the gravity extrudes the lifting body 15, and the elastic steel sheet deforms to generate elastic potential energy; and the deformation of the elastic steel sheet drives the rack 16 to move, the rack 16 is engaged with the gear 14, the gear 14 receives the mechanical energy transmitted by the rack 16, converts the linear motion of the elastic steel sheet into the circumferential motion of the gear 14, and further transmits it to the primary generator 13, so as to convert the pressure energy of the vehicle passing through the speed bump into electric energy.

[0029] The vortex spring energy storage power generation device 2 comprises a transmission unit, an energy storage unit and a secondary generator unit connected in sequence with the electric energy output end of the primary generator 13.

[0030] As Figure 3As shown, the transmission unit includes transmission motor 21, reduction motor 22, one-way bearing 25 and first electromagnetic clutch 26 connected in turn, wherein the transmission motor 21 is installed at a suitable position through the second support 28, the power input end of the transmission motor 21 is electrically connected with the power output end of the generator 13 through the cable, the rotating shaft of the transmission motor 21 is connected with the input shaft of the reduction motor 22, the reduction motor 22 is installed at a suitable position through the third support 29, the output shaft of the reduction motor 22 is connected with the one-way bearing 25 through the first coupling 23, the one-way bearing 25 is arranged and installed at a suitable position through the bearing seat 24, and simultaneously, the output shaft of the reduction motor 22 is connected with the input shaft of the first electromagnetic clutch 26 through the one-way bearing 25. When the transmission motor 21 receives the power of the generator 13, the transmission motor 21 drives the reduction motor 22 to rotate, and the first electromagnetic clutch 26 is used for controlling the transmission and disconnection of the power.

[0031] As shown in the figure, Figure 4 The energy storage unit includes a second box body 210, end covers 211 are arranged at the left and right ends of the second box body 210 through bolts and nuts, a metal shaft 213 is rotatably assembled in the second box body 210 through a bearing 212, the metal shaft 213 is arranged to pass through the end covers 211 at the two ends, and the left end of the metal shaft 213 is connected with the output shaft of the first electromagnetic clutch 26 through a second coupling 27. A spiral spring 214 is sleeved on the metal shaft 213, one end of the spiral spring 214 is connected with the metal shaft 213, and the other end of the spiral spring 214 is connected with the second box body 210. When the reduction motor 22 rotates and drives the metal shaft 213 to rotate through the first electromagnetic clutch 26, the spiral spring 214 rotates, the spiral spring 214 stores elastic potential energy through elastic deformation, and under the arrangement of the one-way bearing 25, the energy can only be transmitted in one direction, so that the metal shaft 213 is prevented from being reversed, thereby avoiding energy loss.

[0032] As shown in the figure, Figure 5 The secondary power generation unit includes a second electromagnetic clutch 216, the input shaft of the second electromagnetic clutch 216 is connected with the right end of the metal shaft 213 through a third coupling 215, the output shaft of the second electromagnetic clutch 216 is connected with a secondary generator 218 through a fourth coupling 217, the secondary generator 218 is arranged at a suitable position through a fourth support 219, the power output end of the secondary generator 218 is connected with a storage battery through a cable, and the power output end of the storage battery is connected with a power consumption unit through a cable. When the power consumption unit needs power supply, the second electromagnetic clutch 216 controls the spiral spring 214 to release the elastic potential energy, so as to drive the secondary generator 218 to generate power, charge the storage battery, and finally supply power to the power consumption unit.

[0033] When the utility model is used, the working principle is as follows:

[0034] When the vehicle passes through the speed bump, the lifting body 15 is pressed by gravity, the elastic steel sheet is deformed, the rack 16 is pressed down, the gear 14 rotates to make the generator 13 generate electricity (current direction A); when the vehicle leaves, the elastic steel sheet returns to its original position, the rack 16 rises, the gear 14 reverses, and the current direction of the generator 13 reverses (current direction B). The current of the generator 13 is input to the transmission motor 21, and the rotating shaft of the transmission motor 21 is connected to the one-way bearing 25 through the speed reducer 22. In the pressing stage, the transmission motor 21 drives the metal shaft 213 to rotate to make the spiral spring 214 store energy; in the rebound stage, the inner ring of the one-way bearing 25 slips to prevent energy from being returned. When the rotating speed of the generator 13 is greater than 50 rpm and the effective signal of pressing is detected, the first electromagnetic clutch 26 is attracted, the spiral spring 214 stores energy, and when the energy stored in the spiral spring 214 reaches 90%, the first electromagnetic clutch 26 is disconnected. When the power unit needs or the battery voltage is less than 12V, the second electromagnetic clutch 216 is turned on first, and then the first electromagnetic clutch 26 is turned off, the spiral spring 214 releases energy to generate electricity, and the power supply is realized through the secondary generator 218. The detection of the rotating speed of the generator 13, the control of the first electromagnetic clutch 26 and the second electromagnetic clutch 216, and the detection of the battery voltage can be realized by setting the controller, the sensor and the corresponding detection unit, etc., which are prior art and will not be described here.

Claims

1. A pressure energy storage and power generation system based on road pressure, characterized in that: The device includes a pressure generator (1) installed under a speed bump on a road, and the power output end of the pressure generator (1) is electrically connected to a vortex spring energy storage generator (2) for external power supply. The pressure generator (1) includes a first housing (11), the top of the first housing (11) is provided with a housing cover (12), the first housing (11) is provided with a horizontally arranged primary generator (13), and a gear (14) is provided on the rotating shaft of the primary generator (13). The first housing (11) is also longitudinally slidably fitted with a lifting body (15), the side wall of the lifting body (15) is provided with a longitudinally arranged rack (16) that meshes with the gear (14), the top of the lifting body (15) protrudes from the top of the housing cover (12) and abuts against the speed bump, and the bottom of the lifting body (15) is provided with an elastic steel sheet connected to the first housing (11). The vortex spring energy storage generator (2) includes a transmission unit, an energy storage unit and a secondary power generation unit that are sequentially connected to the power output end of the primary generator (13).

2. The pressure energy storage and power generation system based on road pressure according to claim 1, characterized in that: The elastic steel sheet is made of 65Mn spring steel and has a thickness of 5mm.

3. The pressure energy storage and power generation system based on road pressure according to claim 1, characterized in that: The upper surface of the box cover (12) is covered with a rubber pressure-bearing layer (121) for cushioning vehicle crushing.

4. The pressure energy storage and power generation system based on road pressure according to claim 1, characterized in that: The transmission unit includes a drive motor (21) electrically connected to the power output terminal of a primary generator (13) via a cable. The rotating shaft of the drive motor (21) is connected to a geared motor (22). The output shaft of the geared motor (22) is connected to a first electromagnetic clutch (26) via a one-way bearing (25).

5. The pressure energy storage and power generation system based on road pressure according to claim 4, characterized in that: The energy storage unit includes a second housing (210), with end caps (211) at the left and right ends of the second housing (210). Inside the second housing (210), a metal shaft (213) is rotatably mounted via a bearing (212) with both ends protruding from the end caps (211). The left end of the metal shaft (213) is connected to the output shaft of the first electromagnetic clutch (26). A spiral spring (214) is sleeved on the metal shaft (213). One end of the spiral spring (214) is connected to the metal shaft (213), and the other end of the spiral spring (214) is connected to the second housing (210).

6. The pressure energy storage and power generation system based on road pressure according to claim 5, characterized in that: The secondary power generation unit includes a second electromagnetic clutch (216) connected to the right end of the metal shaft (213), and the output shaft of the second electromagnetic clutch (216) is connected to a secondary generator (218).

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