CN114810905A

CN114810905A - Shock absorber capable of recycling vibration energy

Info

Publication number: CN114810905A
Application number: CN202210359030.6A
Authority: CN
Inventors: 张兵; 杨新龙; 严鎏; 杜厚羿; 饶俊森; 钱鹏飞
Original assignee: Jiangsu University
Current assignee: Jiangsu University
Priority date: 2022-04-07
Filing date: 2022-04-07
Publication date: 2022-07-29
Anticipated expiration: 2042-04-07
Also published as: CN114810905B

Abstract

The invention relates to a shock absorber capable of recycling vibration energy, which comprises a hydraulic shock absorber body, a hydraulic motor, a torsional shock absorber, a transmission mechanism and a generator, wherein the hydraulic motor, the torsional shock absorber, the transmission mechanism and the generator are sequentially transmitted, the hydraulic shock absorber body is isolated by a piston to form an inner cylinder upper cavity and an inner cylinder lower cavity, a one-way valve system on the hydraulic shock absorber body is used for opening and closing a communication flow passage of the inner cylinder upper cavity and a hydraulic motor oil inlet and return oil and the inner cylinder lower cavity in a one-way manner or opening and closing a communication flow passage of the inner cylinder lower cavity and the hydraulic motor oil inlet and return oil and the inner cylinder upper cavity in a one-way manner; the device can convert relative motion between wheels and a vehicle body caused by ground excitation into hydraulic flow through the one-way valve system to drive the hydraulic motor to rotate in one direction, and drives the generator to convert into electric energy through the speed-increasing transmission mechanism under the condition that the torsional damper reduces impact to realize vibration energy recovery, so that damage of oil fluctuation and impact on components is reduced under the conditions of ensuring reasonable structure, stable and reliable work and high efficiency, and the vibration energy recovery efficiency is improved and maintained.

Description

Shock absorber capable of recycling vibration energy

Technical Field

The invention belongs to the technical field of vibration dampers, and particularly relates to a vibration damper capable of being used for automobiles and recycling vibration energy and a torsional vibration damper capable of being used for energy feedback transmission of the vibration damper.

Background

The common automobile shock absorber mainly absorbs road surface excitation through media such as oil or air, and the part of energy is often converted into heat energy to be dissipated into air to be wasted. The energy-saving and emission-reducing requirements are met, the energy-regenerative shock absorber for recovering vibration energy through the generator is provided in the prior art to replace the traditional shock absorber, the purpose of saving and emission reduction is achieved, however, due to the limitation of the working environment of the automobile shock absorber, the damage of oil fluctuation and impact on components and parts is reduced under the conditions of reasonable structure, stable and reliable work and high efficiency, and the problem of urgent need to be solved is solved by recovering energy as much as possible.

Disclosure of Invention

The present invention is directed to solving at least one of the above problems to some extent and provides a vibration damper capable of recovering vibration energy.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides a recoverable vibration energy's shock absorber, includes the hydraulic shock absorber body, this internal piston that is equipped with through piston rod drive of hydraulic shock absorber, the hydraulic shock absorber body includes the inner tube, the inner tube passes through the piston and keeps apart formation inner tube epicoele and inner tube cavity of resorption, be equipped with the check valve system on the hydraulic shock absorber body, this external hydraulic motor, torsional damper, drive mechanism and the generator of driving in proper order that is equipped with of hydraulic shock absorber, the check valve system is used for the one-way intercommunication runner of opening and close inner tube epicoele and hydraulic motor oil, inner tube cavity of resorption or the one-way intercommunication runner of opening and close inner tube cavity of resorption and hydraulic motor oil, inner tube epicoele.

The above shock absorber, preferably, the hydraulic shock absorber body includes an inner cylinder, an intermediate cylinder and an outer cylinder which are nested in sequence, an intermediate cylinder inner cavity communicated with an inner cylinder upper cavity is arranged between the intermediate cylinder and the inner cylinder, and an outer cylinder inner cavity communicated with an inner cylinder lower cavity is arranged between the intermediate cylinder and the outer cylinder;

the check valve system includes first check valve, second check valve, third check valve and fourth check valve, first check valve is used for one-way opening and close by inner tube epicoele, middle cylinder inner chamber to the intercommunication runner of hydraulic motor oil feed direction, the second check valve is used for one-way opening and close by inner tube cavity, urceolus inner chamber to the intercommunication runner of hydraulic motor oil feed direction, the third check valve is used for one-way opening and close by the communication runner of hydraulic motor oil return to middle cylinder inner chamber, inner tube epicoele direction, the fourth check valve is used for one-way opening and close by the communication runner of hydraulic motor oil return to outer tube inner chamber, inner tube cavity direction.

Preferably, the first check valve and the second check valve are combined and integrated on the hydraulic shock absorber body, an oil inlet end buffer chamber communicated with the oil inlet of the hydraulic motor is arranged between the first check valve and the second check valve and the oil inlet of the hydraulic motor, the third check valve and the fourth check valve are combined and integrated on the hydraulic shock absorber body, and an oil return end buffer chamber communicated with the oil return of the hydraulic motor is arranged between the third check valve and the fourth check valve.

Preferably, the first one-way valve comprises a first valve body, a first valve core, a first spring and an oil inlet sealing cover, the first valve body is connected with the middle cylinder, a first groove communicated with the inner cavity of the middle cylinder is formed in the first valve body, the first valve core is elastically supported in the first valve body through the first spring, the first valve core is used for opening and closing a flow passage between the first groove and the inner cavity of the middle cylinder, the inside of the first valve core is communicated with the first groove and an oil inlet end buffer chamber, the oil inlet sealing cover is connected with the outer cylinder, and the oil inlet end buffer chamber is arranged between the first valve body and the oil inlet sealing cover;

the second check valve comprises a first valve plate and a second spring, the first valve plate is elastically supported between the first valve body and the outer barrel through the second spring, and the first valve plate is used for opening and closing a communication flow channel between an inner cavity of the outer barrel, the first valve body and the outer barrel and between buffer chambers at the oil inlet end.

Preferably, the third one-way valve comprises a second valve body, a second valve core, a third spring and an oil return sealing cover, the second valve body is connected with the intermediate cylinder, a second groove communicated with the oil return end buffer chamber is formed in the second valve body, the second valve core is elastically supported in a second valve seat through the third spring, the second valve core is used for opening and closing a flow passage between the second groove and the oil return end buffer chamber, the inner part of the first valve core is communicated with the first groove and an inner cavity of the intermediate cylinder, the oil return sealing cover is connected with the outer cylinder, and the oil return end buffer chamber is arranged between the second valve body and the oil return sealing cover;

the fourth one-way valve comprises a second valve plate and a fourth spring, the second valve plate is elastically supported between the second valve body and the outer barrel through the fourth spring, and the second valve plate is used for opening and closing a communication flow channel among the oil return end buffer chamber, the second valve body, the outer barrel and an inner cavity of the outer barrel.

Preferably, the above shock absorber is characterized in that a circulation valve base is arranged on the piston rod, a circulation spring, a circulation valve plate, a recovery valve plate and a recovery spring are arranged outside the piston rod, the end of the piston rod sequentially penetrates through the circulation spring, the circulation valve plate, the piston, the recovery valve plate and the recovery spring and is connected with a recovery valve adjusting nut which is limited by the recovery spring, and a circulation valve port corresponding to the circulation valve plate and a recovery valve port corresponding to the recovery valve plate are arranged on the piston.

The damper preferably comprises a driven disc hub and a driven wheel which are nested with each other, a lug and a torsion spring which are matched with each other to transmit torque are respectively and selectively arranged on the driven disc hub and the driven wheel, and a third groove and a flange which are in sliding fit are respectively and selectively arranged on the driven disc hub and the driven wheel.

Preferably, the driven wheel is nested outside the driven wheel hub, the torsion spring is arranged between the driven wheel hub and the driven wheel, the projection is provided with a first spring positioning pin matched with the torsion spring, the driven wheel is provided with a fourth groove and a second spring positioning pin matched with the torsion spring, the projection can slide in the fourth groove, and the relative sliding range of the projection and the fourth groove is smaller than that of the flange and the third groove.

Preferably, the output shaft of the hydraulic motor and the driven disk hub rotate synchronously, and the transmission mechanism adopts a speed-increasing transmission mechanism matched with a driven wheel and a motor shaft of the generator.

Preferably, the transmission mechanism includes a gear box and a synchronous belt transmission mechanism, the torsional vibration damper is disposed in the gear box, the driven wheel is provided with external teeth, at least one gear which is matched with the external teeth for speed-increasing transmission is disposed in the gear box, and the synchronous belt transmission mechanism is used for being matched with the gear and a motor shaft of the generator for speed-increasing transmission.

The internal flow passage communication condition of the shock absorber in different working processes is as follows:

(1) when the piston is in a return stroke, the inner cylinder upper cavity is sequentially communicated with the middle cylinder inner cavity, the first check valve, the oil inlet end buffer chamber, the oil inlet sealing cover interface, the oil pipe, the oil inlet end oil pipe interface of the hydraulic motor and the oil inlet of the hydraulic motor, and the oil outlet of the hydraulic motor is sequentially communicated with the oil pipe interface of the oil outlet end of the hydraulic motor, the oil pipe, the oil return sealing cover interface, the oil return end buffer chamber, the fourth check valve, the outer cylinder inner cavity and the inner cylinder lower cavity.

(2) When the piston is in a compression stroke, the lower cavity of the inner cylinder is sequentially communicated with the inner cavity of the outer cylinder, the second one-way valve, the oil inlet end buffer chamber, the oil inlet sealing cover interface, the oil pipe, the oil inlet end oil pipe interface of the hydraulic motor and the oil inlet of the hydraulic motor, and the oil outlet of the hydraulic motor is sequentially communicated with the oil outlet end oil pipe interface of the hydraulic motor, the oil pipe, the oil return sealing cover interface, the oil return end buffer chamber, the third one-way valve, the inner cavity of the intermediate cylinder and the upper cavity of the inner cylinder.

The vibration absorber automatically opens and closes to control the oil inlet and the oil return of the hydraulic motor through the one-way valve system along with the change of vibration absorbing hydraulic pressure, the hydraulic motor converts oil hydraulic energy into mechanical energy, the generator is driven through the transmission mechanism capable of providing the acceleration function under the condition that the impact of the torsional vibration absorber is reduced, the mechanical energy is converted into electric energy to realize the vibration energy recovery, and compared with the prior art, the vibration absorber has the advantages that:

(1) under the different strokes of shock absorber, utilize the operating condition of check valve system to guarantee that drive mechanism and generator shaft are a rotation all the time and generate electricity, do not need high frequency conversion rotation direction, with the cooperation of acceleration rate transmission, be favorable to improving the generating efficiency, extension motor and variable speed drive mechanism life.

(2) Through the structural design of the flow channel and the check valve system of the shock absorber body, the first check valve and the second check valve of the check valve system, the third check valve and the fourth check valve of the check valve system are combined and integrated on the hydraulic shock absorber body, the structure is compact and reasonable, the assembly and disassembly are convenient, and the oil inlet end buffer chamber and the oil return end buffer chamber are designed to reduce the damage of the fluctuation of oil to components.

(3) The torsional damper is designed to reduce impact and transmission torque by matching the lug with the torsional spring and/or matching the third groove with the flange according to the torque impact transmitted from the driven disk hub, and is matched with the oil inlet end buffer chamber and the oil return end buffer chamber, so that the damage of irregular fluctuation of oil to a transmission system is greatly reduced.

(4) When the working environment of the shock absorber is severe and the damping force is large, the valve port of the circulation valve and the valve port of the recovery valve can be opened to jointly play a role of protection with the torsional shock absorber, and the working efficiency of the whole device is maintained.

(5) The vibration energy recovery device has the advantages of compact and stable integral structure, easy disassembly and maintenance, capability of effectively converting the vibration mechanical energy into the electric energy for recovery, capability of being used for automobiles and recovering the vibration energy, energy conservation and emission reduction.

In conclusion, the vibration absorber reduces damage to components caused by oil fluctuation and impact under the conditions of reasonable structure, stable and reliable work and high efficiency, and improves and maintains the vibration energy recovery efficiency.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of a rack configuration according to an embodiment of the present invention;

FIG. 3 is an assembled schematic view of an embodiment of the present invention;

FIG. 4 is a cross-sectional view of the interior of the body of the hydraulic shock absorber in accordance with one embodiment of the present invention;

FIG. 5 is a first partially exploded sectional view of the interior of the shock absorber of the present invention;

FIG. 6 is a second partial exploded sectional view of the interior of the shock absorber of the present invention;

FIG. 7 is a schematic view of a hydraulic motor according to an embodiment of the present invention;

FIG. 8 is an exploded cross-sectional view of a hydraulic motor according to an embodiment of the present invention;

FIG. 9 is an exploded view of a torsional vibration damper in accordance with an embodiment of the present invention;

FIG. 10 is a second exploded view of the torsional vibration damper of the present invention;

FIG. 11 is a schematic view of a torsional vibration damper in accordance with an embodiment of the present invention;

FIG. 12 is a schematic view of a transmission mechanism according to an embodiment of the present invention;

FIG. 13 is an exploded view of a transmission according to an embodiment of the present invention;

FIG. 14 is a first schematic diagram of a synchronous belt drive mechanism according to an embodiment of the present invention;

FIG. 15 is a second schematic diagram of a synchronous belt drive mechanism according to an embodiment of the present invention;

fig. 16 is a schematic diagram of a generator according to an embodiment of the present invention.

The labels in the figure are: the hydraulic shock absorber comprises a hydraulic shock absorber body 1, an inner cylinder 101, an inner cylinder upper chamber 1011, an inner cylinder lower chamber 1012, an inner cylinder normally-open hole 1013, an intermediate cylinder 102, an intermediate cylinder inner chamber 1021, a first valve port 1022, an outer cylinder 103, an outer cylinder inner chamber 1031, a second valve port 1032, a second spring seat 1033, a piston rod guide sleeve 104, a bottom support 105, a guide hole 1051, a support normally-open hole 1052, a support notch 1053, a lifting lug 106, a guide column 1061, a first oil seal 107 and a dust cover 108;

the piston rod 2, a circulation valve base 201, a piston 202, a circulation valve port 2021 (4), a recovery valve port 2022 (9), a circulation spring 203, a circulation valve plate 204, a recovery valve plate 205, a recovery spring 206, a recovery spring guide sleeve 207 and a recovery valve adjusting nut 208;

the machine frame 3, the C-shaped fixing sleeve 301, the attaching fixing sleeve 302 (2) and the rectangular hole 303;

the check valve system 4, the first check valve 41, the first valve body 411, the first groove 4111, the first valve core 412, the valve core constant through holes 4121 (6) of the first valve core, the first spring 413, the oil inlet seal cover 414, the first spring seat 4141, the oil inlet buffer chamber 4142, the second check valve 42, the first valve plate 421, the second spring 422, the third check valve 43, the second valve body 431, the third valve port 4311, the second groove 4312, the second valve core 432, the valve core constant through holes 4321 (6) of the second valve core, the third spring 433, the oil return seal cover 434, the oil return buffer chamber 4341, the fourth valve port 4342, the fourth check valve 44, the second valve plate 441, and the fourth spring 442;

the hydraulic motor comprises a hydraulic motor 5, a shell 501, a hydraulic motor oil inlet end 5011, a hydraulic motor oil return end 5012, a rotor 502, blades 503 (5), a rear sealing cover 504, a front sealing cover 505, an output shaft 506, an output shaft spline 5061, an output shaft flat position 5062, a first bearing 507 and a second oil seal 508;

oil pipe 62 strips, rubber sealing washer 601 (4);

torsional damper 7, driven hub 71, boss 711, first spring locating pin 7111, third recess 712, hub axle 713, spline hub 7131, driven wheel 72, external teeth 721, flange 722, fourth recess 723, second spring locating pin 724, torsion spring 73 (2);

the transmission mechanism 8, the gear transmission case 81, the box body 811, the box cover 812, the second bearing 813, the pinion 814, the shaft 815 of the pinion, the flat key 8151, the clamping groove 8152, the clamp spring 8153, the synchronous belt transmission mechanism 82, the large belt wheel 821, the key slot 8211, the small belt wheel 822 and the synchronous belt 823;

the generator 9, the motor shaft 91, the motor shaft flat position 911 and the positioning hole 92.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "axial", "radial", "vertical", "horizontal", "inner", "outer", and the like, indicate orientations or positional relationships based on the illustrated orientation or positional relationships illustrated in the drawings, are used merely to facilitate the description of the invention and to simplify the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the invention. Furthermore, the terms "first", "second" and "first" 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 defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "plurality" or "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 to 4, as a preferred embodiment of the shock absorber capable of recycling vibration energy according to the present invention, the shock absorber includes a hydraulic shock absorber body 1, a piston 202 driven by a piston rod 2 is disposed in the hydraulic shock absorber body 1, the hydraulic shock absorber body 1 includes an inner cylinder 101, the inner cylinder 101 is separated by the piston 202 to form an inner cylinder upper cavity 1011 and an inner cylinder lower cavity 1012, a check valve system 4 is disposed on the hydraulic shock absorber body 1, a hydraulic motor 5, a torsional shock absorber 7, a transmission mechanism 8 and a generator 9 which sequentially transmit are disposed outside the hydraulic shock absorber body 1, and the check valve system 4 is used for opening and closing the inner cylinder upper cavity 1011 and the hydraulic motor 5 in a one-way manner, and opening and closing a communication flow channel of the inner cylinder lower cavity 1012 or opening and closing the inner cylinder lower cavity 1012 and the hydraulic motor 5 in an one-way and opening and closing a communication flow channel of the inner cylinder upper cavity 1011.

As shown in fig. 1-3, in the above shock absorber, preferably, a frame 3 is disposed outside the hydraulic shock absorber body 1, a C-shaped fixing sleeve 301 for mounting the hydraulic shock absorber body 1 and an attaching fixing sleeve 302 for mounting the check valve system 4 are disposed on the frame 3, the frame 3 is perforated with a plurality of rectangular holes 303 to reduce weight and a plurality of reinforcing ribs are disposed to ensure strength of the frame 3, the hydraulic motor 5, the torsional shock absorber 7, the transmission mechanism 8 and the generator 9 are mounted on the frame 3, the oil inlet and return of the hydraulic motor 5 are connected with the check valve system 4 through an oil pipe 6, and the frame 3 is fixed to make the overall structure compact and stable, thereby facilitating the overall mounting.

As shown in fig. 4-6, in the above shock absorber, preferably, the hydraulic shock absorber body 1 includes an inner cylinder 101, an intermediate cylinder 102 and an outer cylinder 103 which are nested in sequence, an intermediate cylinder inner cavity 1021 communicated with an inner cylinder upper cavity 1011 is arranged between the intermediate cylinder 102 and the inner cylinder 101, and an outer cylinder inner cavity 1031 communicated with an inner cylinder lower cavity 1012 is arranged between the intermediate cylinder 102 and the outer cylinder 103;

the check valve system 4 comprises a first check valve 41, a second check valve 42, a third check valve 43 and a fourth check valve 44, the first check valve 41 is used for opening and closing the communication flow channel in the direction from the inner cylinder upper cavity 1011 to the oil inlet of the hydraulic motor 5 through the inner cylinder inner cavity 1021 and the middle cylinder inner cavity 1021 in a one-way mode, the second check valve 42 is used for opening and closing the communication flow channel in the direction from the inner cylinder lower cavity 1012 to the oil inlet of the hydraulic motor 5 through the inner cylinder outer cavity 1031 in a one-way mode, the third check valve 43 is used for opening and closing the communication flow channel in the direction from the oil return of the hydraulic motor 5 to the middle cylinder inner cavity 1021 and the inner cylinder upper cavity 1011 in a one-way mode, and the fourth check valve 44 is used for opening and closing the communication flow channel in the direction from the oil return of the hydraulic motor 5 to the outer cylinder inner cavity 1031 and the inner cylinder lower cavity 1012.

Preferably, the inner cylinder 101 and the intermediate cylinder 102 are welded together to form an assembly of the inner cylinder 101 of the intermediate cylinder 102, the intermediate cylinder 102 is fixedly connected with the first valve body 411 of the first check valve 41 and the second valve body 431 of the third check valve 43 through threads at the same time, so that the assembly of the inner cylinder 101 of the intermediate cylinder 102 is fixed inside the outer cylinder 103, an intermediate cylinder inner cavity 1021 is formed between the outside of the inner cylinder 101 and the inside of the intermediate cylinder 102, and the inner cylinder 101 is provided with 4 inner cylinder normal through holes 1013 communicated with the intermediate cylinder inner cavity 1021 and the inner cylinder upper cavity 1011, so that oil can flow between the inner cylinder upper cavity 1011 and the intermediate cylinder inner cavity 1021 through the inner cylinder 101 normal through holes.

Preferably, one end of the inner cylinder 101 is provided with a piston rod guide sleeve 104 in an interference fit manner, the other end of the inner cylinder 101 is provided with a bottom support 105 in an interference fit manner, the piston rod 2 penetrates through the piston rod guide sleeve 104 and extends to the outside of the hydraulic shock absorber body 1, an inner cylinder upper cavity 1011 is formed between the piston 202 and the piston rod guide sleeve 104, an inner cylinder lower cavity 1012 is formed between the piston 202 and the bottom support 105, the bottom support 105 is provided with guide holes 1051, 4 support constant through holes 1052 and 4 support notches 1053, one end of the outer cylinder 103 is matched with the piston rod guide sleeve 104, the other end of the outer cylinder 103 is connected with a lifting lug 106, the lifting lug 106 is provided with a guide post 1061 matched with the guide hole 1051, the lifting lug 106 is matched and positioned with the guide hole 1051 of the bottom support 105 through the guide post 1061 and welded with the outer cylinder 103 for installing the hydraulic shock absorber body 1, and an outer cylinder inner cavity 1031 communicated with the inner cylinder lower cavity 1012 is formed between the inside of the outer cylinder 103 and the outside of the middle cylinder 102, oil can flow between the lower barrel chamber 1012 and the outer barrel chamber 1031 through the seat slots 1053 and the seat normal-flow holes 1052.

Preferably, a first oil seal 107 sleeved outside the piston rod 2 is arranged between the outer cylinder 103 and the piston rod guide sleeve 104, and a dust cap 108 sleeved outside the piston rod 2 is connected to the outer cylinder 103, so as to ensure the internal sealing and dust-proof performance of the hydraulic shock absorber body 1.

Preferably, the first check valve 41 and the second check valve 42 are integrated on the hydraulic shock absorber body 1 in a combined manner, an oil inlet end buffer chamber 4142 is arranged between the first check valve 41 and the hydraulic motor 5 and between the second check valve 42 and the oil inlet of the hydraulic motor 5 in a communicated manner, the third check valve 43 and the fourth check valve 44 are integrated on the hydraulic shock absorber body 1 in a combined manner, and an oil return end buffer chamber 4341 is arranged between the third check valve 43 and the hydraulic motor 5 and between the fourth check valve 44 and the oil return of the hydraulic motor 5 in a communicated manner.

Preferably, the first check valve 41 includes a first valve body 411, a first valve element 412, a first spring 413 and an oil inlet cover 414, the first valve body 411 is connected to the intermediate cylinder 102, a first groove 4111 communicated with the intermediate cylinder inner cavity 1021 is arranged in the first valve body 411, the first valve element 412 is elastically supported in the first valve body 411 by the first spring 413, the first valve element 412 is used for opening and closing a flow passage between the first groove 4111 and the intermediate cylinder inner cavity 1021, the inside of the first valve element 412 is communicated with the first groove 4111 and an oil inlet buffer chamber 4142, the oil inlet cover 414 is connected to the outer cylinder 103, and the oil inlet buffer chamber 4142 is arranged between the first valve body 411 and the oil inlet cover 414;

the second check valve 42 comprises a first valve plate 421 and a second spring 422, the first valve plate 421 is elastically supported between the first valve body 411 and the outer cylinder 103 through the second spring 422, and the first valve plate 421 is used for opening and closing a communication flow channel among the inner cavity 1031 of the outer cylinder, the space between the first valve body 411 and the outer cylinder 103, and the buffer chamber 4142 at the oil inlet end.

Preferably, the oil inlet sealing cover 414 is detachably connected with the outer cylinder 103 in a threaded fit manner, a first spring seat 4141 for mounting the second spring 422 and 10 openings communicated with the oil inlet end buffer chamber 4142 are arranged on the oil inlet sealing cover 414, the oil inlet sealing cover 414 is used as a valve seat for mounting the first spring 413, so that the first spring 413 and the second spring 422 are stably mounted, the oil inlet sealing cover 414 is provided with an opening and is connected with the oil inlet end 5011 of the hydraulic motor through an oil pipe 6, and the oil inlet end buffer chamber 4142 communicated with the first check valve 41, the second check valve 42 and the hydraulic motor 5 is formed.

Preferably, the middle cylinder 102 is provided with a first valve port 1022 corresponding to the first groove 4111, the first valve body 411 and the middle cylinder 102 are detachably connected by a screw fit, the first valve core 412 is of a cylindrical structure and is provided with 6 valve core normal through holes 4121, the first spring 413 is arranged between the inside of the first valve core 412 and the oil inlet sealing cover 414, so that in a closed state of the first check valve 41: the first valve element 412 is elastically supported in the first valve body 411 by the first spring 413, the end of the first valve element 412 is in contact with the first valve port 1022 and is closed, and when the first check valve 41 is in an open state: the first valve element 412 moves along the first valve body 411, disengages from the first valve port 1022 and compresses the first spring 413, and oil from the first valve port 1022 can enter the hydraulic motor oil inlet 5011 through the first valve port 1022, the first groove 4111, the valve element normally open hole 4121, the interior of the first valve element 412, the oil inlet buffer chamber 4142.

Preferably, a second valve opening 1032 corresponding to the first valve plate 421 is formed between the outer cylinder 103 and the first valve body 411 through a corresponding protrusion gap, so that when the second one-way valve 42 is in a closed state: the first valve plate 421 is elastically supported between the inner part of the outer cylinder 103 and the gap outside the first valve body 411 through the second spring 422, and the first valve plate 421 is contacted with the first valve port 1022 to be cut off; second check valve 42 is in the open state: the second valve core 432 is compressed by the oil pressure of the outer cylinder inner chamber 1031 to overcome the spring force to the second spring 422, the first valve plate 421 is separated from the first valve port 1022, and the oil from the second valve port 1032 flows through the second valve port 1032, the space between the outer cylinder 103 and the first valve body 411, and the oil inlet buffer chamber 4142 to enter the oil inlet 5011 of the hydraulic motor.

Preferably, the third one-way valve 43 includes a second valve body 431, a second valve core 432, a third spring 433 and an oil return sealing cover 434, the second valve body 431 is connected to the intermediate cylinder 102, a second groove 4312 communicated with the oil return buffer chamber 4341 is arranged in the second valve body 431, the second valve core 432 is elastically supported in the second valve seat through the third spring 433, the second valve core 432 is used for opening and closing a flow passage between the second groove 4312 and the oil return buffer chamber 4341, the inside of the first valve core 412 is communicated with the first groove 4111 and the inner cavity 1021 of the intermediate cylinder, the oil return sealing cover 434 is connected to the outer cylinder 103, and the oil return buffer chamber 4341 is arranged between the second valve body 431 and the oil return sealing cover 434;

the fourth one-way valve 44 includes a second valve plate 441 and a fourth spring 442, the second valve plate 441 is elastically supported between the second valve body 431 and the outer cylinder 103 by the fourth spring 442, and the second valve plate 441 is used for opening and closing a communication flow passage between the oil return end buffer chamber 4341, the second valve body 431 and the outer cylinder 103, and the outer cylinder inner chamber 1031.

Preferably, the oil return closing cap 434 is detachably connected with the outer cylinder 103 in a threaded fit manner, 10 openings communicated with the oil return end buffer chamber 4341 are formed in the oil return closing cap 434, the middle cylinder 102 serves as a valve seat for installing the third spring 433, a second spring seat 1033 for installing the fourth spring 442 is formed in the outer cylinder 103, stable installation of the third spring 433 and the fourth spring 442 is achieved, the oil return closing cap 434 is provided with a hole and is connected with the oil return end 5012 of the hydraulic motor through an oil pipe 6, and the oil return end buffer chamber 4341 communicated with the oil return of the third check valve 43, the fourth check valve 44 and the hydraulic motor 5 is formed.

Preferably, the second valve body 431 is provided with a third valve port 4311 corresponding to the second groove 4312 and communicating with the oil return end buffer chamber 4341, the second valve body 431 is detachably connected with the intermediate cylinder 102 by screw thread fit, the second valve core 432 is of a cylindrical structure and is provided with 6 valve core normally-open holes 4321, and the third spring 433 is arranged between the inside of the second valve core 432 and the intermediate cylinder 102, so that when the third one-way valve 43 is in a closed state: the second valve core 432 is elastically supported in the second valve body 431 through a third spring 433, and the end part of the second valve core 432 is contacted with the third valve port 4311 and is stopped; third check valve 43 is in the open state: the second spool 432 moves along the second valve body 431, disengages from the third port 4311, and compresses the third spring 433, so that the oil from the return-end buffer chamber 4341 can flow through the third port 4311, the second groove 4312, the spool normally-open hole 4321, the inside of the second spool 432, and into the middle cylinder chamber 1021.

Preferably, a fourth valve port 4342 corresponding to the second valve plate 441 is formed between the oil return sealing cover 434 and the second valve body 431 through a corresponding protrusion clearance, so that in a closed state of the fourth check valve 44: the second valve plate 441 is elastically supported between the inner portion of the outer cylinder 103 and a gap between the outer portion of the second valve body 431 by a fourth spring 442, and the second valve plate 441 is in contact with and stopped by a fourth valve port 4342; fourth check valve 44 is in the open state: the second valve core 432 is compressed by the oil pressure of the hydraulic motor 5 against the spring force to the second spring 422, the second valve plate 441 is separated from the fourth valve port 4342, and the oil from the oil return buffer chamber 4341 flows through the fourth valve port 4342, between the outer cylinder 103 and the second valve body 431, and enters the inner chamber 1031 of the outer cylinder.

As shown in fig. 4-6, in the shock absorber, preferably, a flow valve base 201 is disposed on the piston rod 2, a flow spring 203, a flow valve plate 204, a return valve plate 205, and a return spring 206 are disposed outside the piston rod 2, an end of the piston rod 2 sequentially passes through the flow spring 203, the flow valve plate 204, the piston 202, the return valve plate 205, and the return spring 206 and is connected with a return valve adjusting nut 208 limited by the return spring 206, and the piston 202 is disposed with a flow valve port 2021 corresponding to the flow valve plate 204 and a return valve port 2022 corresponding to the return valve plate 205.

Preferably, the circulation valve plate 204 and the restoring valve port 2022 are arranged in an abdicating manner, the number of the restoring valve ports 2022 is 9, a restoring spring guide sleeve 207 for positioning and installing a restoring spring 206 is arranged on the restoring valve plate 205, the circulation spring 203 and the restoring spring 206 are thicker and have higher rigidity, the damping force of the shock absorber is mainly provided by the counterforce in the power generation process and the resistance of the one-way valve system 4 to be opened, when the oil pressure of the lower cavity 1012 of the inner cylinder overcomes the acting force of the circulation spring 203, the circulation valve plate 204 extrudes the circulation spring 203 and is separated from the circulation valve port 2021, and the circulation valve port 2021 is opened to communicate the lower cavity 1012 of the inner cylinder with the upper cavity 1011 of the inner cylinder; when the oil pressure of the upper cavity 1011 of the inner cylinder overcomes the acting force of the recovery spring 206, the recovery valve plate 205 extrudes the recovery spring 206 and is separated from the valve port 2022 of the recovery valve, and the valve port 2022 of the recovery valve is opened to enable the lower cavity 1012 of the inner cylinder to be communicated with the upper cavity 1011 of the inner cylinder; the upper circulation valve port 2021 and the rebound valve port 2022 of the piston 202 can be opened when the damping force caused by the harsh working environment is large, so that the piston rod 2 normally moves up and down, and plays a role of protection together with the torsional vibration damper 7, thereby maintaining the working efficiency of the whole device, wherein: the reset valve adjustment nut 208 may adjust the initial compression of the reset spring 206 as needed to adjust the pressure at which the reset valve opens.

As shown in fig. 7 and 8, in the above shock absorber, preferably, the hydraulic motor 5 is a vane 503 type hydraulic motor 5, the vane 503 type hydraulic motor 5 includes a housing 501 for oil inlet and return flow distribution, a rotor 502 disposed in an inner cavity of the housing 501, and 5 vanes 503 disposed between the rotor 502 and the housing 501, the vanes 503 are unbalanced under the action of pressure oil to make the rotor 502 generate torque, one end of the housing 501 is provided with a rear cover 504, the other end of the housing 501 is provided with a front cover 505, an output shaft 506 extending to the outside of the front cover 505 and used for outputting torque is disposed in the rotor 502, a first bearing 507 is disposed between the output shaft 506 and the housing 501, a second oil seal 508 is disposed between the first bearing 507 and the front cover 505, the front cover is provided with a screw thread to cooperate with the front end of the housing 501 to fix the second oil seal 508 and the first bearing 507, the output shaft 506 restricts the axial position of the rotor 502 through a shaft flat position 5062 and a shaft shoulder to cooperate with the rotor 502, Synchronous circumferential rotation is realized, and hydraulic energy is converted into mechanical energy through the hydraulic motor 5.

As shown in fig. 9-11, the damper, preferably, the torsional damper 7 includes a driven hub 71 and a driven wheel 72 nested with each other, a protrusion 711 and a torsion spring 73 for transmitting torque are selectively provided on the driven hub 71 and the driven wheel 72, respectively, and a third groove 712 and a flange 722 for sliding fit are selectively provided on the driven hub 71 and the driven wheel 72, respectively.

Preferably, the driven wheel 72 is nested outside the driven wheel hub 71, the torsion spring 73 is arranged between the driven wheel hub 71 and the driven wheel 72, the projection 711 is provided with a first spring positioning pin 7111 matched with the torsion spring 73, the driven wheel 72 is provided with a fourth groove 723 and a second spring positioning pin 724 matched with the torsion spring 73, the projection 711 can slide in the fourth groove 723, the relative sliding range of the projection 711 and the fourth groove 723 is smaller than the relative sliding range of the flange 722 and the third groove 712, the maximum rotating position of the driven wheel 72 is limited through the sliding fit of the third groove 712 and the flange 722, and therefore the maximum sliding range of the flange 722 and the third groove 712 is the maximum buffer interval of the torsion damper 7.

Preferably, the driven hub 71 is of a stepped cylindrical structure, the protrusion 711 and the spring positioning pin are both of an arc structure and are disposed on an outer ring of the driven hub 71, so that when the driven wheel 72 is limitedly nested outside the driven hub 71, the protrusion 711 and the first spring positioning pin 7111 pass through the

fourth groove

723, 2 torsion springs 73 are embedded between the driven hub 71 and the driven wheel 72, and the first spring positioning pin 7111 and the second spring positioning pin 724 are respectively inserted into two ends of the torsion springs 73 for positioning and mounting, so that the torsion springs 73 are reliably stressed.

Preferably, the third recess 712 is disposed on the outer ring of the driven hub 71 and has an arc-shaped configuration, and the flange 722 is disposed on the driven wheel 72 and has an arc-shaped configuration, so that the torsional damper 7 is compact.

When the torque shock transmitted from the hub 71 is small: after the impact is reduced by transmitting the torque to the torsion spring 73 through the protrusion 711, the torque is directly transmitted through the torsion spring 73 to drive the driven wheel 72 to rotate and transmit the torque to the transmission mechanism 8.

When the torque shock transmitted from the hub 71 is large: the impact is transmitted to the torsion spring 73 through the protrusion 711, and a part of the impact is reduced until the flange 722 and the third groove 712 reach the maximum sliding range, and then the third groove 712 drives the flange 722 to rotate together, thereby driving the driven wheel 72 to rotate and transmit the rotation to the transmission mechanism 8.

Preferably, the torsional vibration damper 7 can be used in a driveline torsion system, reducing shock, improving drive smoothness.

The magnitude of the degree of impact is greatly related to the speed of the vehicle during travel and road conditions, and is greater when the vehicle is traveling at higher speeds and on uneven surfaces, and less when the vehicle is traveling at lower speeds on flat surfaces.

As shown in fig. 12-16, the check valve system 4 is connected to the oil inlet end 5011 or the oil return end 5012 of the hydraulic motor through an oil pipe 6, a rubber sealing washer 601 is disposed at the joint of the oil pipe 6, the output shaft 506 of the hydraulic motor 5 rotates synchronously with the driven hub 71, and the transmission mechanism 8 is a speed-increasing transmission mechanism 8 matched with the driven wheel 72 and the motor shaft 91 of the generator 9.

Preferably, hub shafts 713 are arranged on two sides of the driven hub 71, and a spline hub 7131 matched with a spline 5061 of the output shaft 506 of the hydraulic motor 5 is arranged in one hub shaft 713 for realizing synchronous rotation of the output shaft 506 and the driven hub 71.

Preferably, the transmission mechanism 8 includes a gear box 81 and a synchronous belt transmission mechanism 82, the torsional vibration damper 7 is disposed in the gear box 81, the driven wheel 72 is provided with external teeth 721, at least one gear cooperating with the external teeth 721 to perform an acceleration transmission is disposed in the gear box 81, and the synchronous belt transmission mechanism 82 is configured to cooperate with the gear and a motor shaft 91 of the generator 9 to perform the acceleration transmission.

Preferably, the gear box 81 comprises a box body 811, a box cover 812 and a second bearing 813, wherein the box body 811 and the box cover 812 are respectively provided with a hole for placing the second bearing 813 and an inner flange 722 for limiting the bearing, the torsional damper 7 is arranged in the box body 811, hub shafts 713 on two sides of a driven hub 71 are arranged on the second bearing 813 of the box body 811 in a matching way, the gear is a pinion 814 which is meshed with outer teeth 721 of a driven wheel 72 and is smaller than the diameter of the outer teeth 721, and two sides of the pinion 814 are provided with shafts 815 which are matched with the box body 811 and the box cover 812;

the synchronous belt transmission mechanism 82 comprises a large belt wheel 821, a small belt wheel 822 and a synchronous belt 823, the large belt wheel 821 completes fixing of the axial position of the large belt wheel 821 through a key slot 8211 which is not completely opened and a clamp spring 8153 which is placed in one shaft clamping slot 8152 of the small gear 814, circumferential transmission on the large belt wheel 821 is completed through a flat key 8151, fixing of the axial position of the small belt wheel 822 is completed through a shaft flat position 911 shoulder of a motor shaft 91 of a generator 9 and a fastening nut on the generator 9, the shaft flat position 911 is also used for circumferential transmission of the small belt wheel 822, an adjusting hole 92 on the generator 9 can be used for adjusting the tightness degree of the synchronous belt 823, the small gear 814 is in meshing transmission with an external gear 721, the large belt wheel 821 rotates coaxially with the small gear 814, and is transmitted to the small gear 814 through the synchronous belt 823, and a speed increasing function can be provided.

Preferably, the generator 9 adopts a permanent magnet brushless generator 9, converts mechanical energy into electric energy, and has the advantages of simple structure, reliable operation, small volume, small mass, less loss and high efficiency.

The shock absorber is applied to an automobile, a piston rod 2 extending out of the upper end of the shock absorber is connected with the sprung mass of the automobile, and a lifting lug 106 at the lower end of the shock absorber is connected with the unsprung mass according to the working principle that:

when the automobile runs on an uneven road surface and the wheel rolls off the convex road surface and rolls to a pit, as the wheel is far away from the automobile body, the piston rod 2 moves upwards, at the moment, the oil in the upper cavity 1011 of the inner cylinder is relatively high in extrusion pressure by the piston 202, the damping oil in the upper cavity 1011 of the inner cylinder flows into the inner cavity 1021 of the middle cylinder through the normal through hole of the inner cylinder 101 on the wall of the inner cylinder 101, the oil pressure overcomes the acting force of the first spring 413 of the first check valve 41, the first check valve 41 is opened, the oil flows into the oil inlet buffer chamber 4142 through the first valve port 1022, the first groove 4111, the normal through hole 4121 of the valve core and the inside of the first valve core 412 to weaken a part of the impact of the oil, the oil enters the oil inlet end 5011 of the hydraulic motor through the oil pipe 6 on the oil inlet sealing cover 414, the oil inlet of the hydraulic motor 5 returns to convert the hydraulic energy into mechanical energy, the torque is transmitted to the disc driven hub 71 of the torsional damper 7 by the output shaft 506 of the hydraulic motor 5, and the pinion 814, the hydraulic damper 7 reduces the impact again, The large belt wheel 821, the synchronous belt 823, the small belt wheel 822 and the motor shaft 91 of the generator 9 rotate along one direction, and the mechanical energy is converted into electric energy through the generator 9;

meanwhile, the oil flowing out of the oil return end 5012 of the hydraulic motor flows back to the oil return end buffer chamber 4341 of the oil return sealing cover 434 through the oil pipe 6, so that part of the impact of the oil is weakened, because the oil pressure of the inner cylinder lower chamber 1012 is reduced when the piston 202 moves upwards, the inner cylinder lower chamber 1012 is communicated with the outer cylinder inner chamber 1031 through the support normal through hole 1052 and the support notch 1053, and after the oil pressure difference between the oil return end buffer chamber 4341 and the outer cylinder inner chamber 1031 overcomes the acting force of the fourth spring 442 of the fourth check valve 44, the fourth check valve 44 is opened, so that the oil enters the outer cylinder inner chamber 1031 through the fourth valve port 4342, the outer cylinder 103 and the second valve body 431, and then flows into the inner cylinder lower chamber 1012 through the support notch 1053 and the support normal through hole 1052, and the process is an energy recovery process of the return stroke of the shock absorber.

When the automobile runs on an uneven road and the wheels roll away from a pit road and roll to be convex, as the wheels are close to the automobile body, the piston rod 2 moves downwards, at the moment, the oil in the lower cavity 1012 of the inner cylinder is relatively high in extrusion pressure of the piston 202, the damping oil in the lower cavity 1012 of the inner cylinder flows into the inner cavity 1031 of the outer cylinder through the normal through hole 1052 and the notch 1053 of the support, the oil pressure overcomes the acting force of the second spring 422 of the second check valve 42, the second check valve 42 is opened, the oil flows into the buffer chamber 4142 at the oil inlet end through the second valve port 1032, the space between the outer cylinder 103 and the first valve body 411 and the oil inlet end, so that part of the oil impact is weakened, the oil enters the oil inlet end 5011 of the hydraulic motor through the oil pipe 6 on the oil inlet sealing cover 414, the oil enters the hydraulic motor 5 and returns to convert the hydraulic energy into mechanical energy, the torque is transmitted to the driven hub 71 of the torsion damper 7 through the output shaft 506 of the hydraulic motor 5, and the pinion 814, the torsion damper 7 reduces the impact again, The large belt wheel 821, the synchronous belt 823, the small belt wheel 822 and the motor shaft 91 of the generator 9 rotate along one direction, and the mechanical energy is converted into electric energy through the generator 9;

meanwhile, the oil flowing out of the oil return end 5012 of the hydraulic motor flows back to the oil return end buffer chamber 4341 of the oil return sealing cover 434 through the oil pipe 6, so that a part of oil impact is weakened, because the oil pressure of the upper chamber 1011 of the inner cylinder is reduced when the piston 202 moves downwards, the upper chamber 1011 of the inner cylinder is communicated with the inner chamber 1021 of the middle cylinder through the normal through hole of the inner cylinder 101, after the oil pressure difference between the buffer chamber 4341 of the oil return end and the inner chamber 1021 of the middle cylinder overcomes the acting force of the third spring 433 of the third check valve 43, the third check valve 43 is opened, the oil enters the inner chamber 1021 of the middle cylinder through the third valve port 4311, the second groove 4312, the valve core normal through hole 4121 and the second valve core 432, and then flows into the upper chamber 1011 of the inner cylinder through the normal through hole of the inner cylinder 101, and the process is an energy recovery process of the compression stroke of the shock absorber.

In conclusion, the shock absorber automatically controls the hydraulic motor 5 to enter and return oil along with the change of the damping hydraulic pressure through the check valve system 4, the hydraulic motor 5 converts oil hydraulic energy into mechanical energy, the torsional shock absorber 7 reduces impact and drives the generator 9 through the transmission mechanism 8 capable of providing the acceleration function, the mechanical energy is converted into electric energy, the generated electric energy can be regulated through the voltage stabilizing circuit and finally stored in the storage battery, the vibration energy recycling is realized, and the shock absorber has the following effects:

in the energy recovery process of the shock absorber under different states, as long as the shock absorber is in a working state, the shock absorber can automatically utilize the working state of the check valve system 4, the first check valve 41 unidirectionally opens and closes a communication flow passage from the inner cylinder upper cavity 1011 and the middle cylinder inner cavity 1021 to the oil inlet direction of the hydraulic motor 5, the second check valve 42 unidirectionally opens and closes a communication flow passage from the inner cylinder lower cavity 1012 and the outer cylinder inner cavity 1031 to the oil inlet direction of the hydraulic motor 5, the third check valve 43 unidirectionally opens and closes a communication flow passage from the oil return of the hydraulic motor 5 to the middle cylinder inner cavity 1021 and the inner cylinder upper cavity 1011, the fourth check valve 44 unidirectionally opens and closes a communication flow passage from the oil return of the hydraulic motor 5 to the outer cylinder inner cavity 1031 and the inner cylinder lower cavity 1012, the hydraulic flow converted into the direction is ensured to drive the hydraulic motor 5 to rotate towards one direction all the time, the transmission mechanism 8 and the shaft of the generator 9 rotate one time to generate electricity after the oil return is converted into mechanical energy through the hydraulic motor 5, the rotation direction does not need to be converted at high frequency, and the torsional vibration damper 7 is in acceleration transmission fit with the gear of the gear transmission case 81 and the synchronous belt 823 transmission structure, so that the power generation efficiency is improved, and the service lives of the motor and the variable speed transmission mechanism 8 are prolonged.

Secondly, an intermediate cylinder inner cavity 1021 communicated with an inner cylinder upper cavity 1011 and an outer cylinder inner cavity 1031 communicated with an inner cylinder lower cavity 1012 are formed by sequentially nesting the inner cylinder 101, the intermediate cylinder 102 and the outer cylinder 103, and a first check valve 41 and a second check valve 42 of the check valve system 4, a third check valve 43 and a fourth check valve 44 are combined and integrated on the hydraulic shock absorber body 1 through the structural design of a shock absorber body flow passage and the check valve system 4, so that the shock absorber is compact and reasonable in structure and convenient to assemble and disassemble, and the oil inlet end buffer chamber 4142 and the oil return end buffer chamber 4341 are designed to reduce and weaken part of oil impact and reduce the damage of the fluctuation of oil on components.

And thirdly, a torsion damper 7 which can be used for damper energy feedback transmission is specially designed, a part of torque impact is reduced by a torsion spring 73 according to the torque impact transmitted from the driven hub 71, and then the torque is transmitted in the maximum sliding range by a flange 722 and a third groove 712, or the torque is directly transmitted by the torsion spring 73, so that the transmission smoothness is improved, and the torsion damper is matched with the oil inlet end buffer chamber 4142 and the oil return end buffer chamber 4341, so that the damage of irregular oil fluctuation to a transmission system is greatly reduced.

The damping force provided by the check valve system 4 and the power generation resistance, when the working environment of the shock absorber is severe and the damping force is large, the circulation valve port 2021 and the recovery valve port 2022 on the piston 202 can be opened to enable the piston rod 2 to normally move up and down, and the piston rod and the torsion shock absorber 7 play a role in protection, so that the working efficiency of the whole device is maintained.

The vibration mechanical energy can be effectively converted into electric energy for recycling, the vibration mechanical energy can be used for automobiles, relative movement between wheels and an automobile body caused by ground excitation is converted into electric energy through the vibration damper, and partial vibration mechanical energy of the automobiles is recycled, so that the purposes of energy conservation and emission reduction are achieved, and at least one of the technical problems is solved to a certain extent.

In conclusion, the vibration absorber reduces damage of oil fluctuation and impact on components and improves and maintains vibration energy recovery efficiency under the conditions of reasonable structure, stable and reliable work and high efficiency.

The above-described series of detailed descriptions are merely specific to possible embodiments of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications that do not depart from the technical spirit of the present invention are intended to be included within the scope of the present invention.

Claims

1. The shock absorber capable of recycling vibration energy comprises a hydraulic shock absorber body (1), wherein a piston (202) driven by a piston rod (2) is arranged in the hydraulic shock absorber body (1), and the shock absorber is characterized in that the hydraulic shock absorber body (1) comprises an inner tube (101), the inner tube (101) is isolated by the piston (202) to form an inner tube upper cavity (1011) and an inner tube lower cavity (1012), a one-way valve system (4) is arranged on the hydraulic shock absorber body (1), a hydraulic motor (5), a torsion shock absorber (7), a transmission mechanism (8) and a generator (9) which are sequentially driven are arranged outside the hydraulic shock absorber body (1), and the one-way valve system (4) is used for opening and closing the inner tube upper cavity (1011) and the hydraulic motor (5) in an oil inlet and return way, and the communication flow channel of the inner tube lower cavity (1012) or the inner tube lower cavity (1012) and the hydraulic motor (5) in an oil inlet and return way, The upper cavity (1011) of the inner cylinder is communicated with the flow passage.

2. The shock absorber capable of recycling the vibration energy as claimed in claim 1, wherein the hydraulic shock absorber body (1) comprises an inner cylinder (101), an intermediate cylinder (102) and an outer cylinder (103) which are nested in sequence, an intermediate cylinder inner cavity (1021) communicated with an inner cylinder upper cavity (1011) is arranged between the intermediate cylinder (102) and the inner cylinder (101), and an outer cylinder inner cavity (1031) communicated with an inner cylinder lower cavity (1012) is arranged between the intermediate cylinder (102) and the outer cylinder (103);

check valve system (4) include first check valve (41), second check valve (42), third check valve (43) and fourth check valve (44), first check valve (41) are used for one-way opening and closing by inner tube epicoele (1011), middle cylinder inner chamber (1021) to the intercommunication runner of hydraulic motor (5) oil feed direction, second check valve (42) are used for one-way opening and closing by inner tube lower chamber (1012), urceolus inner chamber (1031) to the intercommunication runner of hydraulic motor (5) oil feed direction, third check valve (43) are used for one-way opening and closing by hydraulic motor (5) oil return to the intercommunication runner of middle cylinder inner chamber (1021), inner tube epicoele (1011) direction, fourth check valve (44) are used for one-way opening and closing by the intercommunication runner of hydraulic motor (5) oil return to outer tube inner chamber (1031), inner tube lower chamber (1012) direction.

3. The shock absorber capable of recycling the vibration energy as claimed in claim 2, wherein the first check valve (41) and the second check valve (42) are combined and integrated on the hydraulic shock absorber body (1), an oil inlet end buffer chamber (4142) communicated with the oil inlet of the hydraulic motor (5) is arranged between the first check valve (41) and the second check valve (42), the third check valve (43) and the fourth check valve (44) are combined and integrated on the hydraulic shock absorber body (1), and an oil return end buffer chamber (4341) communicated with the oil return of the hydraulic motor (5) is arranged between the third check valve (43) and the fourth check valve (44).

4. A recoverable vibration energy absorber as claimed in claim 3, the first one-way valve (41) comprises a first valve body (411), a first valve core (412), a first spring (413) and an oil inlet sealing cover (414), the first valve body (411) is connected with the middle cylinder (102), a first groove (4111) communicated with an inner cavity (1021) of the middle cylinder is arranged in the first valve body (411), the first valve core (412) is elastically supported in the first valve body (411) through a first spring (413), the first valve core (412) is used for opening and closing a flow passage between the first groove (4111) and the middle cylinder inner cavity (1021), the interior of the first valve core (412) is communicated with the first groove (4111) and the oil inlet end buffer chamber (4142), the oil inlet sealing cover (414) is connected with the outer barrel (103), and the oil inlet end buffer chamber (4142) is arranged between the first valve body (411) and the oil inlet sealing cover (414);

the second one-way valve (42) comprises a first valve plate (421) and a second spring (422), the first valve plate (421) is elastically supported between the first valve body (411) and the outer barrel (103) through the second spring (422), and the first valve plate (421) is used for opening and closing a communication flow channel between the inner cavity (1031) of the outer barrel, the first valve body (411) and the outer barrel (103) and between the oil inlet end buffer chambers (4142).

5. A recoverable vibration energy absorber as claimed in claim 3, the third one-way valve (43) comprises a second valve body (431), a second valve core (432), a third spring (433) and an oil return sealing cover (434), the second valve body (431) is connected with the middle cylinder (102), a second groove (4312) communicated with the oil return end buffer chamber (4341) is arranged in the second valve body (431), the second valve core (432) is elastically supported in the second valve seat through a third spring (433), the second valve core (432) is used for opening and closing a flow passage between the second groove (4312) and the oil return end buffer chamber (4341), the interior of the first valve core (412) is communicated with the first groove (4111) and the middle cylinder inner cavity (1021), the oil return sealing cover (434) is connected with the outer cylinder (103), and the oil return end buffer chamber (4341) is arranged between the second valve body (431) and the oil return sealing cover (434);

the fourth one-way valve (44) comprises a second valve plate (441) and a fourth spring (442), the second valve plate (441) is elastically supported between the second valve body (431) and the outer barrel (103) through the fourth spring (442), and the second valve plate (441) is used for opening and closing a communication flow passage between the oil return end buffer chamber (4341), the second valve body (431) and the outer barrel (103) and between the inner cavities (1031) of the outer barrels.

6. The shock absorber capable of recycling vibration energy as claimed in claim 1, wherein a circulation valve base (201) is disposed on the piston rod (2), a circulation spring (203), a circulation valve plate (204), a recovery valve plate (205) and a recovery spring (206) are disposed outside the piston rod (2), an end of the piston rod (2) sequentially penetrates through the circulation spring (203), the circulation valve plate (204), the piston (202), the recovery valve plate (205) and the recovery spring (206) and is connected with a recovery valve adjusting nut (208) limited by the recovery spring (206), and a circulation valve port (2021) corresponding to the circulation valve plate (204) and a recovery valve port (2022) corresponding to the recovery valve plate (205) are disposed on the piston (202).

7. A vibration damper for recovering vibration energy according to any one of claims 1 to 6, characterized in that the torsional vibration damper (7) comprises a driven disk hub (71) and a driven wheel (72) which are nested with each other, a lug (711) and a torsional spring (73) which are matched and used for transmitting torque are respectively and selectively arranged on the driven disk hub (71) and the driven wheel (72), and a third groove (712) and a flange (722) which are matched and used for sliding are respectively and selectively arranged on the driven disk hub (71) and the driven wheel (72).

8. A recoverable vibration energy absorber according to claim 7, wherein the driven pulley (72) is nested outside the driven pulley hub (71), the torsion spring (73) is arranged between the driven pulley hub (71) and the driven pulley (72), the protrusion (711) is provided with a first spring locating pin (7111) which is matched with the torsion spring (73), the driven pulley (72) is provided with a fourth groove (723) and a second spring locating pin (724) which is matched with the torsion spring (73), the protrusion (711) can slide in the fourth groove (723), and the relative sliding range of the protrusion (711) and the fourth groove (723) is smaller than the relative sliding range of the flange (722) and the third groove (712).

9. A recoverable vibration energy absorber according to claim 7, wherein the output shaft (506) of the hydraulic motor (5) rotates synchronously with the driven hub (71), and the transmission (8) comprises a step-up transmission (8) cooperating with the driven wheel (72) and the motor shaft (91) of the generator (9).

10. The vibration damper capable of recycling vibration energy of claim 9, wherein the transmission mechanism (8) comprises a gear box (81) and a synchronous belt transmission mechanism (82), the torsional vibration damper (7) is arranged in the gear box (81), the driven wheel (72) is provided with external teeth (721), and the gear box (81) is internally provided with a speed increasing transmission matched with the external teeth (721).