Bidirectional mechanical rectification deceleration strip energy recovery device

Abstract

The utility model provides a bidirectional mechanical rectification deceleration strip energy recovery device which is composed of a buffer structure module, a transmission module structure, a power generation module structure and an energy storage structure module, and the buffer structure module comprises a deceleration pressing plate, a compression-resistant rod and four damping springs; the transmission module mainly comprises a crank seat, a crank, a sliding rail, a shaft support, a transmission shaft, a gear, a rack, a pair of bevel gears and a bidirectional mechanical rectifying device. The energy storage module comprises a rectifying circuit, a voltage stabilizer and a super capacitor; the speed reduction pressing plate is supported by a lower compression-resistant rod and a damping spring and connected with two crank seats simultaneously, the crank seats are connected with sliding rails through cranks respectively, racks are installed on the sliding rails and meshed with upper bevel gears, and the bevel gears are connected in series through a transmission shaft. According to the device, energy is recovered while vehicle deceleration is achieved, power is supplied to electronic elements of the highway toll station, and energy consumption of the highway toll station is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of energy recovery and utilization, in particular to an energy recovery device based on a bidirectional mechanical rectifier speed reduction belt. Background Art

[0002] As China's urbanization process continues to accelerate, highways are playing an increasingly decisive role in the development of my country's transportation industry. Data show that in 2023, the total mileage of my country's highways will reach 5.441 million kilometers, of which 184,000 kilometers are expressways, and there are 972 expressway toll stations. As the bottleneck of expressways, toll stations have an important impact on the energy consumption of mixed traffic flows. Usually, toll stations are equipped with a large number of speed bumps. When vehicles pass through speed bumps, a large amount of mechanical energy is generated, but this energy is usually wasted. This waste not only increases energy costs, but also has a negative impact on the environment. Therefore, it is of great significance to develop an energy regeneration system that can convert the mechanical vibration energy generated when a vehicle passes through a speed bump into electrical energy, store the electrical energy, and use it in electronic devices at highway toll stations.

[0003] According to the current development and application of speed bump energy regeneration technology, the following factors should be considered when designing a new speed bump energy recovery device: (1) The current speed bump energy regeneration devices mainly include hydraulic, piezoelectric and mechanical electromagnetic types. Among them, hydraulic and piezoelectric types are mostly in the theoretical research and laboratory stage due to high installation and maintenance costs and immature technology, and have not been put into production and use. Therefore, their practicality must be considered when designing the device; (2) The existing devices mainly recover the mechanical energy generated by the speed bump when the vehicle passes over the speed bump, but ignore the recovery and utilization of the mechanical energy generated during the rebound of the speed bump, which makes the energy recovery efficiency of the device low. It is necessary to design a device that can perform bidirectional energy recovery to solve this problem; (3) The road surface part of the speed bump energy regeneration system should minimize the impact on the driver and the vehicle. The design of the speed bump energy regeneration system should be reasonable to avoid jamming, damage and other phenomena during operation, increase the service life of the device, and also reduce maintenance costs; (4) Since the goal of the speed bump energy regeneration system is to power the electronic components of the toll station, in order to increase the practicality of the speed bump energy regeneration system, the energy recovery efficiency should be increased as much as possible. The efficiency of energy transfer and conversion can be improved by optimizing the transmission mechanism; (5) Since the passage of vehicles at toll stations is highly uncertain, the time when the device generates electricity and the amount of electricity generated are variable, and a suitable energy storage device should be added to the system.

[0004] Based on the above problems, our team proposed a highway toll station speed reduction belt energy recovery system based on bidirectional mechanical rectification. The system utilizes the characteristics of the one-way bearing in the bidirectional mechanical rectification device that the forward rotation makes the shaft unloaded, and the reverse rotation drives the gear to rotate. This realizes the mechanical rectification of the up and down displacement of the speed reduction plate, so that the motor output shaft always rotates in one direction, fully utilizes the mechanical energy, improves the energy recovery efficiency of the device, and provides a new way for energy-saving operation of highway toll stations. Utility Model Content

[0005] The utility model provides a bidirectional mechanical rectifier speed reduction belt energy recovery device to solve the problems of insufficient energy recovery and low recovery efficiency of traditional speed reduction belts.

[0006] The device is a combined structure, consisting of a buffer module, a transmission module, a power generation module and an energy storage module, wherein:

[0007] The buffer module includes a deceleration pressure plate, an anti-pressure rod and four shock-absorbing springs;

[0008] The transmission module mainly includes a crank seat, a crank, a slide rail, a shaft bracket, a transmission shaft, a gear, a rack, a pair of bevel gears and a bidirectional mechanical rectifier;

[0009] The power generation module includes a brushless DC motor;

[0010] The energy storage module includes a rectifier circuit, a voltage stabilizer, and a supercapacitor;

[0011] The deceleration pressure plate is supported by the lower anti-pressure rod and the shock-absorbing spring, and is connected to two crank seats. The crank seats are connected to the slide rails through cranks. The slide rails are equipped with racks, which mesh with the upper bevel gears. The bevel gears are connected in series by transmission shafts.

[0012] The bidirectional mechanical rectifier is driven by a gear installed on one end of the transmission shaft, and the other end is connected to the motor drive shaft. A brushless DC motor is used as a generator. The output circuit is connected to the rectifier circuit and the voltage stabilizer, and the current is transmitted to the supercapacitor.

[0013] Optionally, it is characterized in that: the transmission module can compress the gear stroke, wherein the vertical compression stroke of the deceleration pressure plate is 6 cm and the crank rotation angle is 45°.

[0014] Optionally, the deceleration pressure plate is supported by shock-absorbing springs evenly installed at its four corners, two crank seats and a compression rod in the middle.

[0015] Optionally, the bidirectional mechanical rectification device has different numbers of meshing teeth on both sides and can be used as power output in both directions, thereby realizing bidirectional rectification of mechanical motion.

[0016] Optionally, when the transmission shaft is configured as a one-way bearing, the motor output shaft connected to the motor output end always rotates in one direction.

[0017] Optionally, the brushless DC motor has a rated torque of 7.84 N·cm, a rated current of 0.625 A, a rated power of 15 W, a no-load current of 0.1 A, and a weight of 0.26 kg.

[0018] Optionally, the energy storage module uses a rectifier circuit and a voltage stabilizer to stabilize the output voltage, and uses a supercapacitor to store energy.

[0019] The beneficial effects of the above technical solution of the utility model are as follows:

[0020] (1) This device uses the working principle of the ratchet mechanism to convert continuous rotation or reciprocating motion into unidirectional stepping motion;

[0021] (2) The device is designed with a bidirectional rectifying component, which transmits the energy step by step and directly transmits the energy up, thus achieving efficient energy conversion in the reverse direction;

[0022] (3) The device uses a buffer transmission structure to change the force state and compress the gear stroke, thereby optimizing the mechanical structure for precision and miniaturization;

[0023] (4) The device integrates an intelligent module system, a transmission shaft linkage series output interface, and energy storage and coordinated power generation;

[0024] (5) Compared with similar devices, this device has high power generation efficiency, low installation cost and easy maintenance and protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the device of the utility model;

[0026] Figure 2 This is a model diagram of a new buffer module;

[0027] Figure 3 This is the model diagram of the new transmission module;

[0028] Figure 4 This is a model diagram of a new power generation module;

[0029] Figure 5 A model diagram of a bidirectional mechanical rectifier device and its connection relationship;

[0030] Among them: 1-base; 2-deceleration pressure plate; 3-slide rail; 4-axis bracket; 5-transmission shaft; 6-spring; 7-rack; 8-crank (connecting rod); 9-crank seat; 10-bevel gear; 11-bidirectional mechanical rectifier; 12-brushless DC motor; 131, 132-intermediate shaft; 141, 142, 143, 144, 145, 146-spur gear; 15-gear; 16-anti-pressure rod. DETAILED DESCRIPTION

[0031] In order to make the technical problems to be solved, technical solutions and advantages of the present invention more clear, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0032] The utility model provides a bidirectional mechanical rectifier speed reduction belt energy recovery device.

[0033] The device includes a buffer module, a transmission module, a power generation module and an energy storage module. The buffer module is located at the upper part of the device, and the transmission module, the power generation module and the energy storage module are arranged below the buffer module. The transmission module is directly connected to the buffer module and the power generation module, and the power generation module generates electricity and stores it in the energy storage module. The buffer module includes a deceleration plate 2, a pressure-resistant rod 16 and four shock-absorbing springs 6; the transmission module includes a crank seat 9, a crank 8, a slide rail 3, spur gears 141, 142, 143, 144, 145, 146 and a gear 15, an intermediate shaft 131, 132, a rack 7, a pair of bevel gears 10 and a bidirectional mechanical rectifier 11; the power generation module includes a brushless DC motor (model WS37GB3650) 12; the energy storage module includes a supercapacitor energy storage battery.

[0034] The deceleration plate 2 is supported by the lower anti-compression rod 16 and the shock absorbing spring 6, and is connected to two crank seats 9, which are respectively connected to the slide rail 3 through the crank 8. The slide rail 3 is equipped with a rack 7, which is engaged with the upper bevel gear 10, and the bevel gears 10 are connected in series by a transmission shaft 5. The bidirectional mechanical rectifier is driven by a gear 15 installed on one end of the transmission shaft 5, and the other end is connected to the motor drive shaft (not shown). A brushless DC motor 12 is used as a power generation device, and the output circuit is connected to the rectifier circuit and the voltage stabilizer, and the current is transmitted to the super capacitor. In this embodiment, a base 1 is also included, and other modules are installed on the base 1.

[0035] The transmission module can compress the gear stroke, wherein the vertical compression stroke of the deceleration plate 2 is 6 cm and the crank rotation angle is 45°. The deceleration plate is supported by shock-absorbing springs evenly installed at its four corners, two crank seats and a compression rod in the middle. The two-way mechanical rectifier has different numbers of meshing teeth on both sides, and both directions can be used as power output to achieve two-way rectification of mechanical motion.

[0036] When the transmission shaft is configured as a one-way bearing, the motor output shaft connected to the motor output end always rotates in one direction.

[0037] The brushless DC motor has a rated torque of 7.84 N·cm, a rated current of 0.625 A, a rated power of 15 W, a no-load current of 0.1 A, and a weight of 0.26 kg.

[0038] When the vehicle enters the speed bump, the downward pressure on the speed reduction plate 2 is greater than the elastic force of the return spring 6. At this time, the speed reduction plate 2 will move downward, and the crank 8 connecting rod drives the rack to move in the slide rail. The rack 7 and the gear 15 mesh with each other, thereby converting the linear motion of the rack 7 into the rotational motion of the transmission shaft 5. A pair of bevel gears 10 are installed on the transmission shaft 5 to convert the motion direction from longitudinal to lateral. The motion is transmitted to the rectifier. The two shafts in the device rotate in opposite directions due to the different number of meshing gears. The bearing on the side opposite to the one-way bearing is locked, and the gear is idling; while the side with the same direction as the one-way bearing transmits power to the output shaft of the device.

[0039] When the vehicle leaves the speed bump, the downward pressure on the speed reduction plate 2 will gradually decrease. When the pressure is less than the elastic force of the return spring 6, the speed reduction plate 2 will start to move upward. At this time, the movement direction of the crank (connecting rod) 8, the rack 7 and the transmission shaft 5 is opposite to that when the speed reduction plate 2 moves downward: the other side of the rectifier is used as the power output, and the movement is transmitted to the generator 12 in the same direction, thereby realizing the bidirectional rectification of the mechanical movement.

[0040] The vibration generated when the vehicle passes over the speed bump is transmitted to the power generation module through the buffer module and the transmission module. The generator converts the mechanical energy into electrical energy and stores it in the energy storage module (supercapacitor).

[0041] The specific working principle of the device is as follows: when the vehicle passes through the speed bump, the speed reduction plate 2 is forced to move up and down, driving the crank seat 9 to drive the crank 8 to make the rack 7 move back and forth horizontally on the slide rail 3; the gear 15 and the rack 7 are engaged to make the rotating shaft drive the bevel gear to rotate, and then drive the bidirectional mechanical rectifier 11 to operate, changing the clockwise and counterclockwise rotation of the bevel gear 10 into unidirectional rotation, and transmitting the motion to the input shaft of the brushless DC motor 12; the brushless DC motor 12 outputs electrical energy, which is adjusted by the voltage stabilizing circuit and stored in the supercapacitor, and is applied to electronic devices.

[0042] Example 1

[0043] The above device is used to process the energy loss when the vehicle passes through the speed bump. The vehicle mass is 1.8t, and the speed of passing through the conveyor belt is 23km / h. The speed reduction plate moves downward, and the rack drives the gear to move longitudinally. The speed bump vibration drives the generator output shaft through the transmission module, and the speed is 15km / h when leaving. The spring pushes the conveyor belt to move upward, and the rack gear rotates in the opposite direction, performing two-way rectification. The upper and lower limit position difference of the speed bump is 6cm. After 1000 times, 2.39KW·h of electricity is generated.

[0044] Example 2

[0045] The same device as in Example 1 was used, the vehicle mass was 2.2 t, the speeds before and after the conveyor belt were 23 km / h and 15 km / h respectively. Other conditions were the same as in Example 1, and the electric energy obtained was 2.87 KW·h.

[0046] Example 3

[0047] The same device as in Example 1 was used, the vehicle mass was 1.5 t, the speeds before and after the conveyor belt were 23 km / h and 15 km / h respectively. Other conditions were the same as in Example 1, and the electric energy obtained was 1.97 KW·h.

[0048] The device converts the mechanical energy generated when the vehicle passes through the speed bump into stable electrical energy in both the upper and lower directions through the bidirectional rectification design of the transmission device. The bidirectional mechanical rectification mechanism is used to improve the energy recovery efficiency. The equipment has high power generation efficiency and low installation cost.

[0049] The vibration of the speed bump caused by the car passing through the speed bump is converted into stable output electrical energy through a two-way rectifier, realizing the recycling of vibration energy. The production capacity of this device is closely related to the traffic volume, and it has great application prospects today when the traffic volume is increasing day by day. Through research, transformation and promotion, this device can be applied to the road traffic system across the country, which can not only generate electricity to create economic value, but also reduce the emissions of related power companies and achieve energy saving and consumption reduction. Its design concept is in line with the national "dual carbon strategy", energy conservation and emission reduction and sustainable development concepts, and has broad prospects for promotion and application.

Claims

1. A bidirectional mechanical rectifier speed reduction belt energy recovery device, characterized in that: It consists of a buffer module, a transmission module, a power generation module and an energy storage module. The buffer module includes a deceleration pressure plate, an anti-pressure rod and four shock-absorbing springs; The transmission module mainly includes a crank seat, a crank, a slide rail, a shaft bracket, a transmission shaft, a gear, a rack, a pair of bevel gears and a bidirectional mechanical rectifier; The power generation module includes a brushless DC motor; The energy storage module includes a rectifier circuit, a voltage stabilizer, and a supercapacitor; The deceleration pressure plate is supported by the lower anti-pressure rod and the shock-absorbing spring, and is connected to two crank seats. The crank seats are connected to the slide rails through cranks. The slide rails are equipped with racks, which mesh with the upper bevel gears. The bevel gears are connected in series by transmission shafts. The bidirectional mechanical rectifier is driven by a gear mounted on one end of the transmission shaft, and the other end is connected to the motor drive shaft. A brushless DC motor is used as a generator, and the output circuit is connected to a rectifier circuit and a voltage stabilizer. The current is transmitted to the supercapacitor.

2. The bidirectional mechanical rectifier speed reduction belt energy recovery device according to claim 1 is characterized in that: The transmission module can compress the gear stroke, wherein the vertical compression stroke of the deceleration pressure plate is 6 cm and the crank rotation angle is 45°.

3. The bidirectional mechanical rectifier speed reduction belt energy recovery device according to claim 1 is characterized in that: The deceleration pressure plate is supported by shock-absorbing springs evenly installed at its four corners, two crank seats and a compression rod in the middle.

4. The bidirectional mechanical rectifier speed reduction belt energy recovery device according to claim 1 is characterized in that: The bidirectional mechanical rectification device has different numbers of meshing teeth on both sides and can be used as power output in both directions, thereby realizing bidirectional rectification of mechanical motion.

5. The bidirectional mechanical rectifier speed reduction belt energy recovery device according to claim 1 is characterized in that: When the transmission shaft is configured as a one-way bearing, the motor output shaft connected to the motor output end always rotates in one direction.

6. The bidirectional mechanical rectifier speed reduction belt energy recovery device according to claim 1 is characterized in that: The brushless DC motor has a rated torque of 7.84 N·cm, a rated current of 0.625 A, a rated power of 15 W, a no-load current of 0.1 A, and a weight of 0.26 kg.

7. The bidirectional mechanical rectifier speed reduction belt energy recovery device according to claim 1 is characterized in that: The energy storage module adopts a rectifier circuit and a voltage stabilizer to stabilize the output voltage, and adopts a super capacitor to store energy.

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