CN219938121U - One-way rotating lead screw variable structure vibration energy recovery device - Google Patents

Abstract

The utility model provides a unidirectional rotating lead screw variable structure vibration energy recovery device, which comprises: the device comprises a ring hook, a table disc, a spring rod, a fixing piece, a unidirectional rotating shaft, a thrust ball bearing, a supporting rod, a gear accelerator, a motor, a connecting rod and a screw unidirectional rotating structure, wherein the screw unidirectional rotating structure comprises a fried dough twist rod, a spiral piece and a cavity rotating piece; wherein the helical flighting engages the internal tooth structure within the cavity rotation member in a stationary condition. The device has the advantages of small occupied volume, reliable structure, quick reciprocating motion conversion when suffering from vibration, capability of realizing continuous work in continuous vibration, capability of improving the rotating speed of the motor during operation, and capability of realizing energy recovery at high rotating speed.

Description

One-way rotating lead screw variable structure vibration energy recovery device

Technical Field

The utility model belongs to the field of energy recovery devices, and particularly relates to a one-way rotating lead screw variable structure vibration energy recovery device.

Background

Since 21 st century, china has developed rapidly, industrialization and mechanization have reached higher levels, and the vehicle industry is one of the pillar industries in China, and the intellectualization and energy conservation have become a new development direction. When the traditional production mode cannot meet the demands of people, the environment and energy source become new hot problems, and for the vehicle industry, an automobile suspension is used as a connecting device between a frame and an axle, and vibration energy of a vehicle body caused by road surface excitation can be converted into heat energy to be dissipated through an elastic element and a damper of the connecting device, so that the vibration of the vehicle body is effectively attenuated. If the automobile suspension can recycle the vibration energy dissipated by the shock absorber during working, the problems of jolt, larger energy consumption and the like of the traditional automobile can be solved to a great extent, the performance of the automobile is improved, the requirement of the automobile on energy is relieved, and meanwhile, the automobile suspension meets the time theme of energy conservation and emission reduction.

The endurance mileage and energy consumption of new energy automobiles are certainly one of the most concerned problems of the vast users, and the riding comfort and travel endurance problems become irreconcilable contradictions. How to reduce the loss of energy becomes a key to solve this contradiction.

Since the nineties of the last century, some expert students began to study the potential and value of energy-fed vibration dampers abroad. In recent years, many college students in China are also beginning to develop the novel energy-feedback type shock absorber. The current energy recovery device mainly comprises a hydraulic type, a pneumatic type and an electric type, and is a mainstream idea at present through converting energy into electric energy. The electric conversion mechanism mainly comprises a linear motor and a rotary motor, and the linear motor does not need conversion of motion forms and directly utilizes the energy of up-and-down vibration of the suspension in the running process of the vehicle. The rotary motor is required to convert the reciprocating vibration into reciprocating rotary motion for utilization. And researchers prove through experiments that although the linear motor does not need conversion of a movement mode, the power generation capacity of the linear motor is about 1/20 of that of the rotary motor under the same working condition, so that more researchers currently place eyes on the rotary motor through conversion of the movement mode to realize the recovery of the vibration energy of the rotary motor. The ZUO professor, california university Dan Xi, uses a rack and pinion to make a conversion mechanism to drive a motor to rotate; the professor of the great traffic in Shanghai uses a ball screw as a conversion mechanism; the energy recovery of the rotating motor also faces the problem of the necessary reciprocating rotation in the conversion process. In the product conversion of a vehicle enterprise, in 2018, the BMW realizes the commercialization of energy feedback suspension of 3-series or more high-grade cars, but for large-fuel-consumption trucks, the energy feedback suspension product is still lack of practical use.

Disclosure of Invention

In order to solve the problems, the utility model provides the energy recovery device which has small occupied volume and reliable structure, can realize continuous work in continuous vibration when being subjected to vibration and can improve the rotating speed of a motor during operation and realize energy recovery at high rotating speed.

The utility model provides a unidirectional rotating lead screw variable structure vibration energy recovery device, which comprises: the device comprises a ring hook, a table disc, a spring rod, a fixing piece, a unidirectional rotating shaft, a thrust ball bearing, a supporting rod, a gear accelerator, a motor, a connecting rod and a screw unidirectional rotating structure, wherein the screw unidirectional rotating structure comprises a fried dough twist rod, a spiral piece and a cavity rotating piece; wherein the helical flighting engages the internal tooth structure within the cavity rotation member in a stationary condition.

In some embodiments of the present utility model, the screw unidirectional rotation structure, when being extruded, the twist rod moves downwards to drive the spiral sheet to rotate, and at this time, the spiral sheet is meshed with the internal tooth structure inside the cavity rotation piece, so as to drive the cavity rotation body to rotate; when the extruded state is finished and the recovery is started, the twisted rod moves upwards to drive the spiral piece to reversely rotate and separate from the internal tooth structure in the cavity rotating piece, and at the moment, the cavity rotating piece continuously rotates by means of inertia, so that continuous work in continuous vibration is realized.

In some embodiments of the present utility model, the unidirectional rotating shaft is matched with the unidirectional rotating structure of the screw, and the matching is that the unidirectional rotating shaft is matched with the cavity rotator of the unidirectional rotating structure of the screw, so that when the unidirectional rotating structure of the screw operates, the unidirectional rotating shaft is driven to rotate, and then the connecting rod drives the motor to operate, so that energy conversion is realized.

In some embodiments of the utility model, the screw nut pair mechanism is modified and applied to the scene, so that unidirectional rotation of the reciprocating rotary motor can be realized, higher rotating speed is realized, energy loss is reduced, and energy recovery efficiency of the rotary motor is improved.

In some embodiments of the utility model, the thrust ball bearing is assembled above the pressed table plate, so that the thrust ball bearing can bear larger axial reciprocating vibration force, and friction loss is reduced.

In some embodiments of the present utility model, the motor may be understood as an energy conversion device that converts reciprocating vibration into rotational motion of the motor and ultimately outputs electrical energy.

In some embodiments of the utility model, the number of spring rods is 3, which can meet both the fixed spring and guiding action and the strength requirement for support.

In some embodiments of the present utility model, the number of support bars is 3, which can meet the strength requirement of the support requirement without increasing the volume and weight too much.

In some embodiments of the utility model, the energy recovery device comprises, from top to bottom, an upper ring hook, an upper table plate, a spring rod, a middle table plate, a support rod, a lower table plate, and a lower ring hook; the screw unidirectional rotation structure is positioned between the upper table plate and the middle table plate and comprises a fried dough twist rod and a spiral sheet, and the spiral sheet is positioned in the cavity of the cavity rotating member; wherein the spiral sheet is meshed with the internal tooth structure inside the cavity rotating member in a static state; the fixing piece is positioned on the middle table plate and is used for fixing the screw rod unidirectional rotation structure; the connecting rod penetrates through the middle table plate and is connected with a unidirectional rotating shaft positioned below the unidirectional rotating structure of the screw rod and a motor positioned on the lower table plate.

In some embodiments of the utility model, the thrust ball bearing is located above the middle table plate and below the unidirectional rotating shaft for carrying the axial reciprocating vibratory force.

In some embodiments of the present utility model, the operation mechanism of the screw unidirectional rotation structure and the integral energy recovery device is as follows: when vibration occurs, the energy recovery device is extruded, at the moment, the twist rod moves downwards to drive the screw rod unidirectional rotation structure to unidirectional rotate, and the unidirectional rotation is transmitted to the motor through the unidirectional rotating shaft and the connecting rod, so that the conversion from mechanical energy to electric energy under the vibration state is realized; in the process of vibration disappearance, the energy recovery device is restored from the extrusion state to the static state, the twist rod moves upwards to drive the spiral piece to reversely rotate, and meanwhile, the twist piece is separated from the cavity rotating piece, so that the operation of the cavity rotating piece is not influenced. The two processes are operated alternately, so that continuous work in continuous vibration can be realized, and efficient energy recovery is realized.

Compared with the prior art, the utility model has the following advantages:

the utility model mainly aims to solve part of problems of the traditional suspension, and provides a screw variable-structure vibration energy recovery device which is small in size and reliable in structure and can be installed in an automobile suspension in parallel. The characteristics are as follows: the device can rotate in one direction, has fast reciprocating motion conversion, can realize continuous work in continuous vibration, and can improve the rotating speed of a motor in operation, thereby realizing energy recovery at high rotating speed, saving energy and improving the energy utilization rate.

1. The mechanical energy generated by jolting in the running process of the vehicle is converted into electric energy to be returned to the vehicle, so that the energy utilization rate is improved, the energy loss is reduced, the problems that when the traditional shock absorber generates damping force through friction of internal hydraulic oil to do work to attenuate vibration, the vibration energy is converted into heat energy and is diffused into the atmosphere, and the energy waste is caused are solved, the vibration energy is recycled while the vibration attenuation is ensured, the energy consumption of an automobile is reduced, and the purposes of energy conservation and environmental protection are achieved. The application of the energy-saving device is beneficial to improving the energy utilization rate of modern automobiles, and has wide market prospect.

2. The rotating part of the energy recovery device adopts a screw rod unidirectional rotating structure, so that the energy recovery device can transmit energy when being extruded, meanwhile, the energy conversion is not influenced when the device rebounds, the continuous work is carried out when the device continuously vibrates, and the energy conversion efficiency is improved.

3. The structure is simple and easy to realize, the body is small and light, the mass of the device is far smaller than that of the automobile body, and the device can not influence the running speed, the control sensitivity and the steering of the automobile when the automobile runs.

4. The structure that three spring rods are arranged between the upper and middle table plates and three supporting rods are arranged between the middle and lower table plates is adopted, and when the energy recovery device operates, the structure can play a good supporting role and has relatively good stability

5. The self-adaptive automobile energy feedback type suspension with the variable road surface can relieve jolting caused by a rugged road surface, damp automobile vibration, improve riding comfort of the automobile and improve steering stability of a driver.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

wherein, 1-1 upper ring hook and 1-2 lower ring hook; 2-1, putting the tray on the table; 2-2 middle table plate; 2-3, lower tray; 3-spring rod; 4-a hemp stalk; 5-spiral sheets; 6-cavity rotation member; 7-fixing pieces; 8-a unidirectional rotating shaft; 9-thrust ball bearings; 10-supporting rods; 11-an electric motor; 12-connecting rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indications (such as up, down, left, right, front, rear, inner, outer …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indication is changed accordingly.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. In addition, when describing a pipeline, the terms "connected" and "connected" as used herein have the meaning of conducting. In describing electronic components, "connected" and "connected" as used herein have the meaning of being conducted by a current. The specific meaning is to be understood in conjunction with the context.

In embodiments of the present utility model, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one …" does not exclude the presence of other like elements in a process, article or apparatus that comprises the element.

In embodiments of the utility model, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

As shown in fig. 1, an upper loop hook 1-1 and a lower loop hook 1-2 are used to connect a suspension to a vehicle;

the upper table plate 2-1, the middle table plate 2-2 and the lower table plate 2-3 are used for fixing, connecting and bearing other parts;

the spring rods 3 are preferably three and used for supporting the suspension, playing a role in vibration reduction and driving the suspension to rebound;

the twist rods 4 move up and down to drive the spiral sheets to rotate;

the spiral sheet 5 is positioned at the inner tooth part of the cavity rotating piece under the action of gravity in a static state and rotates along with the up-and-down movement of the fried dough twist rod;

the cavity rotating piece 6 is provided with an internal tooth structure on the inner wall, and supports the spiral sheet 5 to drive the unidirectional rotating shaft 8 to rotate;

the fixing piece 7 is used for fixing the screw unidirectional rotation structure;

the unidirectional rotating shaft 8 can only rotate in one direction and drives the motor to operate through the key slot;

the thrust ball bearing 9 bears pressure and protects other parts;

the support rods 10, preferably three, are used for supporting and connecting the middle tray and the lower tray

A gear accelerator (not shown) cooperating with the motor 11 for increasing the motor speed and improving the energy conversion efficiency

An electric machine 11 for collecting and converting mechanical energy into electric energy for transmission to the vehicle;

the connecting rod 12 is used for connecting the unidirectional rotating shaft with the motor through a key slot;

in some embodiments of the present utility model, there is provided a unidirectional rotating lead screw variable structure vibration energy recovery device, the energy recovery device comprising: the device comprises a ring hook, a table plate 2, a spring rod 3, a fixing piece 7, a unidirectional rotating shaft 8, a thrust ball bearing 9, a supporting rod 10, a gear accelerator, a motor 11, a connecting rod 12 and a screw unidirectional rotating structure, wherein the screw unidirectional rotating structure comprises a twist rod 4, a spiral piece 5 and a cavity rotating piece 6; wherein the spiral pieces 5 are engaged with the internal tooth structure inside the cavity rotation member 6 in a stationary state.

The loop hook comprises an upper loop hook 1-1 and a lower loop hook 1-2, and is used for connecting a suspension and a vehicle;

the table plate comprises an upper table plate 2-1, a middle table plate 2-2 and a lower table plate 2-3, and is used for fixing, connecting and bearing other parts;

the spring rod 3 is arranged between the upper table plate 2-1 and the middle table plate 2-2, plays a role in vibration reduction and drives the suspension to rebound;

the support rods 10 are arranged on the middle table plate 2-2 and the lower table plate 2-3;

the fixing piece 7 is positioned on the middle table plate 2-2 and is used for fixing the screw unidirectional rotation structure;

in some embodiments of the utility model, a unidirectional rotating lead screw variable structure vibration energy recovery device comprises an upper ring hook 1-1, an upper table plate 2-1, a spring rod 3, a middle table plate 2-2, a support rod 10, a lower table plate 2-3 and a lower ring hook 1-2 from top to bottom; the screw unidirectional rotation structure is positioned between the upper table plate 2-1 and the middle table plate 2-2 and comprises a fried dough twist rod 4 and a spiral sheet 5, and the spiral sheet 5 is positioned in a cavity of the cavity rotating piece 6; wherein the spiral sheet 5 is meshed with the internal tooth structure inside the cavity rotating member 6 in a static state; the fixing piece 7 is positioned on the middle table plate 2-2 and is used for fixing a screw unidirectional rotation structure; the connecting rod 12 penetrates through the middle table plate 2-2 and is connected with a unidirectional rotating shaft positioned below the unidirectional rotating structure of the screw rod and the motor 12 positioned on the lower table plate 2-3 through a key slot; the thrust ball bearing 9 is positioned above the middle table plate and below the unidirectional rotating shaft 8 and is used for bearing axial reciprocating vibration force.

In some embodiments of the present utility model, the screw unidirectional rotation structure, when being extruded, the twist rod 4 moves downwards to drive the spiral sheet 5 to rotate, and at this time, the spiral sheet is meshed with the internal tooth structure inside the cavity rotation member 6, so as to drive the cavity rotation member 6 to rotate; after the extruded state is finished, when the recovery starts, the twist rod 4 moves upwards to drive the spiral piece 5 to reversely rotate and separate from the internal tooth structure in the cavity rotating piece 6, and at the moment, the cavity rotating piece 6 continuously rotates by virtue of inertia, so that continuous work in continuous vibration is realized.

The unidirectional rotating shaft 8 is matched with the unidirectional rotating structure of the screw rod, the matching is that the unidirectional rotating shaft 8 is matched with the cavity rotating body 6 of the unidirectional rotating structure of the screw rod, when the unidirectional rotating structure of the screw rod operates, the unidirectional rotating shaft is driven to rotate, and the connecting rod 12 drives the motor to work, so that energy conversion is realized.

Through the variant improvement of the screw-nut pair mechanism, the reciprocating rotary motor can realize unidirectional rotation of the reciprocating rotary motor in the scene, realize higher rotating speed, reduce energy loss and improve the energy recovery efficiency of the rotary motor.

Because the thrust ball bearing is assembled above the pressed table plate, larger axial reciprocating vibration force can be borne, and friction loss is reduced.

The motor can be understood as an energy conversion device which converts reciprocating vibration into rotational motion of the motor and finally outputs electric energy. The number of the spring rods is 3, so that the fixed springs and the guiding function can be met, and the strength requirement meeting the supporting requirement can be provided.

The number of the supporting rods is 3, so that the strength requirement of the supporting requirement can be met, and too much volume and weight can not be increased.

The screw unidirectional rotation structure and the operation mechanism of the integral energy recovery device are as follows: when vibration occurs, the energy recovery device is extruded, at the moment, the twist rod moves downwards to drive the screw rod unidirectional rotation structure to unidirectional rotate, and the unidirectional rotation is transmitted to the motor through the unidirectional rotating shaft and the connecting rod, so that the conversion from mechanical energy to electric energy under the vibration state is realized; in the process of vibration disappearance, the energy recovery device is restored from the extrusion state to the static state, the twist rod moves upwards to drive the spiral piece to reversely rotate, and meanwhile, the twist piece is separated from the cavity rotating piece, so that the operation of the cavity rotating piece is not influenced. The two processes are operated alternately, so that continuous work in continuous vibration can be realized, and efficient energy recovery is realized.

In another embodiment of the present utility model, in application, a unidirectional rotating lead screw variable structure vibration energy recovery device may be mounted in parallel on an automobile suspension, and when the automobile is traveling on an uneven road, a complex road condition will cause vibration of the automobile. When vibration occurs, the energy recovery device is extruded, at the moment, the twist rod 4 moves downwards to drive the spiral piece 5 to rotate, so that the linkage cavity rotating piece 6, the unidirectional rotating shaft 8 and the connecting rod 12 rotate, and the motor 11 starts to work, thereby realizing energy conversion and utilization; when the vibration is finished, the twist rod 4 moves upwards to drive the spiral sheet 5 to move upwards and rotate reversely, and at the moment, the spiral sheet 5 is separated from the internal tooth structure of the cavity rotating piece 6, so that the rotation of the cavity rotating piece 6 is not influenced, namely, in the recovery process after the vibration is finished, the stretching of the energy recovery device can not influence the forward rotation of the screw rod unidirectional rotation structure. Therefore, the one-way rotating lead screw variable structure vibration energy recovery device can realize rapid conversion of reciprocating motion and continuous work under high-frequency vibration, and improves the energy utilization rate and conversion rate.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be appreciated by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not drive the essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (9)

1. One-way rotatory lead screw becomes structure vibration energy recuperation device, its characterized in that, energy recuperation device includes: the screw rod unidirectional rotation structure comprises a twist rod, a spiral piece and a cavity rotation piece; wherein the helical flighting engages the internal tooth structure within the cavity rotation member in a stationary condition.

2. The energy recovery device according to claim 1, wherein the unidirectional rotating shaft is matched with the unidirectional rotating structure of the screw, the unidirectional rotating shaft is matched with the hollow rotating body of the unidirectional rotating structure of the screw, and when the unidirectional rotating structure of the screw operates, the unidirectional rotating shaft is driven to rotate, and then the motor is driven to operate through the connecting rod.

3. The energy recovery device of claim 1, wherein the trays include an upper tray, a middle tray, and a lower tray; the energy recovery device also comprises a thrust ball bearing which is positioned above the middle table plate and used for bearing axial reciprocating vibration force.

4. The energy recovery device of claim 1, wherein the number of spring rods is 3 for securing the springs and guiding.

5. The energy recovery device of claim 3, wherein the number of support rods is 3, distributed between the middle tray and the lower tray.

6. The energy recovery device of claim 1, wherein the connecting rod connects the unidirectional rotating shaft with the motor via a keyway.

7. The energy recovery device of claim 1, wherein the loop hooks comprise an upper loop hook and a lower loop hook for connecting the suspension to the vehicle.

8. The energy recovery device of claim 1, wherein the energy recovery device comprises, from top to bottom, an upper ring hook, an upper table plate, a spring rod, a middle table plate, a support rod, a lower table plate, and a lower ring hook; the screw unidirectional rotation structure is positioned between the upper table plate and the middle table plate and comprises a fried dough twist rod and a spiral sheet, and the spiral sheet is positioned in the cavity of the cavity rotating member; the fixing piece is positioned on the middle table plate and is used for fixing the screw rod unidirectional rotation structure; the connecting rod penetrates through the middle table plate and is connected with a unidirectional rotating shaft positioned below the unidirectional rotating structure of the screw rod and a motor positioned on the lower table plate.

9. The energy recovery device of claim 8, wherein the energy recovery device comprises a thrust ball bearing located above the mid-table and below the unidirectional shaft for carrying the axially reciprocating vibratory force.