CN209130105U - Hydro-electric type energy feedback shock absorber - Google Patents
Hydro-electric type energy feedback shock absorber Download PDFInfo
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- CN209130105U CN209130105U CN201821946587.5U CN201821946587U CN209130105U CN 209130105 U CN209130105 U CN 209130105U CN 201821946587 U CN201821946587 U CN 201821946587U CN 209130105 U CN209130105 U CN 209130105U
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Abstract
The utility model discloses an ability shock absorber is presented to liquid electricity formula, liquid electricity formula is presented can the shock absorber and is included: a hydraulic cylinder, the hydraulic cylinder comprising: the hydraulic cylinder comprises a cylinder body, a piston arranged in the cylinder body and a hydraulic rod connected with the piston, wherein two oil inlets, two oil outlets and a mounting seat are arranged on the side wall of the cylinder body, and the mounting seat is provided with a motor and a generator which are sequentially connected along the axial direction of the cylinder body; the first end of the motor is connected with the two oil inlets through two first one-way valves respectively, and the second end of the motor is connected with the two oil outlets through two second one-way valves respectively. Because when the hydraulic rod pushes the piston to rise or fall, the flow direction of oil passing through the motor is the same, namely, the rotation direction of the motor cannot be changed, inertia loss is small, and energy feedback efficiency and energy feedback power are high. The energy feedback device has the advantages of simple structure, high integration level, low cost and convenient installation.
Description
Technical field
The utility model relates to damper field more particularly to a kind of electrohydraulic type power feeding shock absorbers.
Background technique
In the prior art, power feeding shock absorber uses the mode of solid-state connection by transform linear motion for rotation, therefore motor
Rotation direction can constantly change with direction of vibration, system inertia loss is larger, can reduce generator life, reduces energy regenerative effect
Rate.
Therefore, the existing technology needs to be improved and developed.
Utility model content
The technical problem to be solved by the present invention is in view of the above drawbacks of the prior art, provide a kind of electrohydraulic type
Power feeding shock absorber, it is intended to solve the problems, such as power feeding shock absorber energy regenerative low efficiency in the prior art.
The utility model technical scheme applied to solve the technical problem is as follows:
A kind of electrohydraulic type power feeding shock absorber, comprising: hydraulic cylinder, the hydraulic cylinder include: cylinder body, are arranged in the cylinder body
Piston and the hydraulic stem that is connect with the piston, which is characterized in that there are two oil inlets, two for setting on the cylinder side wall
A oil outlet and mounting base, two oil inlets are located at the top and bottom of the cylinder side wall, go out described in two
Hydraulic fluid port is located at the top and bottom of the cylinder side wall, and the mounting base is provided with the axial direction along the cylinder body and is sequentially connected
Motor and generator；The first end of the motor is connect with two oil inlets respectively by two the first check valves, institute
The second end for stating motor is connect with two oil outlets respectively by two second one-way valves.
The electrohydraulic type power feeding shock absorber, wherein the internal diameter of the cylinder body is 25-75mm, and the stroke of the piston is
150-300mm, the diameter of the hydraulic stem are 16-28mm.
The electrohydraulic type power feeding shock absorber, wherein first check valve, the second one-way valve internal diameter be
6.35-19.05mm。
The electrohydraulic type power feeding shock absorber, wherein it further includes oil storage room, and the first of the oil storage room and the motor
End connection.
The electrohydraulic type power feeding shock absorber, wherein it further includes accumulator, and the second of the accumulator and the motor
End connection；The accumulator is bladder accumulator, and the volume of the bladder accumulator is 0.4-1L.
The electrohydraulic type power feeding shock absorber, wherein the motor is gear-type hydraulic motor, and the discharge capacity of the motor is
7.07-11.55ml/rec。
The electrohydraulic type power feeding shock absorber, wherein the motor is connect with the generator by shaft joint.
The electrohydraulic type power feeding shock absorber, wherein the generator is mag-dynamo, the Permanent magnet DC hair
The internal resistance of motor is 5.6-7.5 Ω.
The electrohydraulic type power feeding shock absorber, wherein the load resistance of the mag-dynamo is adjustable variable resistance
Device, and adjustable Standard resistance range is 10-100 Ω.
The utility model has the advantages that since the utility model is when hydraulic stem pushes piston to rise or fall, by the stream of the oil of motor
To being identical, that is to say, that the rotation direction of motor will not change, and inertia loss is smaller, energy regenerative efficiency and energy regenerative power compared with
It is high.Energy regenerative device is stable, structure is simple, integrated level is high, it is at low cost, be easily installed.
Detailed description of the invention
Fig. 1 is the flow chart of the preferred embodiment of electrohydraulic type power feeding shock absorber parameter determination method in the utility model.
Fig. 2 is the first structure diagram of the preferred embodiment of electrohydraulic type power feeding shock absorber in the utility model.
Fig. 3 is the second structural schematic diagram of the preferred embodiment of electrohydraulic type power feeding shock absorber in the utility model.
Fig. 4 is sectional view along A-A in Fig. 3.
Fig. 5 is B-B direction cross-sectional view in Fig. 3.
Fig. 6 is the principle of work and power schematic diagram of the preferred embodiment of electrohydraulic type power feeding shock absorber in the utility model.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, clear, develop simultaneously implementation referring to the drawings
The utility model is further described in example.It should be appreciated that specific embodiment described herein is only used to explain this reality
With novel, it is not used to limit the utility model.
As shown in Figures 2 and 3, the utility model provides a kind of electrohydraulic type power feeding shock absorber, comprising: hydraulic cylinder 10, institute
Stating hydraulic cylinder 10 includes: cylinder body 11, the piston 12 being arranged in the cylinder body 11 and the hydraulic stem connecting with the piston 12
13, there are two oil inlet, two oil outlets and mounting bases, two oil inlets to distinguish positions for setting on 11 side wall of cylinder body
In the top and bottom (two oil inlets are denoted as upper oil inlet 14 ' and lower oil inlet 15 ' respectively) of 11 side wall of cylinder body, two
The oil outlet be located at 11 side wall of cylinder body top and bottom (two oil outlets be denoted as respectively oil outlet 16 ' and
Lower oil outlet 17 '), the mounting base is provided with the sequentially connected motor 20 of axial direction and generator 30 along the cylinder body 11；Institute
The first end for stating motor 20 is connect with two oil inlets respectively by two the first check valves, the second end of the motor 20
It is connect respectively with two oil outlets by two second one-way valves.
As shown in Figure 6, it is to be understood that two oil inlets are located above and below the piston 12, and two
Oil outlet is located above and below the piston 12.The first check valve connecting with upper oil inlet 14 ' is denoted as a check valve
14, the first check valve connecting with lower oil inlet 15 ' is denoted as b check valve 15, the second one-way valve note connecting with upper oil outlet 16 '
For c check valve 16, the second one-way valve connecting with lower oil outlet 17 ' is denoted as d check valve 17.
When hydraulic stem 13 pushes piston 12 to rise, a check valve 14 and d check valve 17 are not turned on, and b check valve 15 and c are mono-
It is connected to valve 16, oil enters in cylinder body 11 from b check valve 15, and is located at 12 lower section of piston, and the oil mass of 12 lower section of piston increases；And
Oil above piston 12 is flowed out by c check valve 16, and the oil mass of 12 top of piston is reduced.It is flowed out by c check valve 16
Oil enters in motor 20, and motor 20 is driven to rotate, and when motor 20 rotates, generator 30 generates electricity.In contrast, when
When hydraulic stem 13 pushes piston 12 to decline, b check valve 15 and c check valve 16 are not turned on, and a check valve 14 and d check valve 17 are connected,
Oil enters in cylinder body 11 from a check valve 14, and is located at 12 top of piston, and the oil mass of 12 top of piston increases；And it is located at piston 12
The oil of lower section is flowed out by d check valve 17, and the oil mass of 12 lower section of piston is reduced.Horse is entered by the oil that d check valve 17 flows out
Up in 20, and motor 20 is driven to rotate, when motor 20 rotates, generator 30 generates electricity.Piston 12 is pushed in hydraulic stem 13
When rising or falling, the flow direction by the oil of motor 20 is identical, that is to say, that the rotation direction of motor 20 will not change,
Inertia loss is smaller, and energy regenerative efficiency is higher.
In addition, mounting base is arranged on 11 side wall of cylinder body, and motor 20 and generator 30 are arranged along the axial direction of cylinder body 11, and
Close to upper oil inlet 14 ' and upper 16 ' position of oil outlet, it can reduce the volume of electrohydraulic type power feeding shock absorber in this way, improve its collection
Cheng Du effectively reduces the use of pipeline, reduces the linear loss in oil liquid flow process, to improve energy regenerative power and convenient for real
Now installation application.
Therefore the electrohydraulic type power feeding shock absorber in the utility model, it is applied in vehicle suspension system.In vehicle
When driving, it can be generated since the factors such as road bump, steering and brake are to the incentive action of vehicle, between vehicle frame and vehicle body opposite
Vibrational energy, the electrohydraulic type power feeding shock absorber can substitute conventional damper, and straight-line oscillation campaign is changed into one-way flow
Flow of pressurized, thus drive hydraulic motor 20 rotate, drive generator 30 generate electricity, by vibration mechanical energy be converted into electric energy recycling benefit
With.Since when hydraulic stem 13 pushes piston 12 to rise or fall, the flow direction by the oil of motor 20 is identical, that is,
It says, the rotation direction of motor 20 will not change, and inertia loss is smaller, and energy regenerative efficiency is higher.Energy regenerative device is stable, structure is simple, at
Sheet is low, is easily installed.
More specifically, the first end of motor 20 is connect by the first pipeline with a check valve 14, a check valve 14 passes through second
Pipeline is connect with upper oil inlet 14 ', and upper oil outlet 16 ' is connect by third pipeline with c check valve 16, and c check valve 16 passes through the
Four pipelines are connect with the second end of motor 20；5th pipeline one end connects the first pipeline, and the other end connects b check valve 15, and b is unidirectional
Valve 15 is connect by the 6th pipeline with lower oil inlet 15 '；Lower oil outlet 17 ' is connect by the 7th pipeline with d check valve 17, and the 8th
Pipeline one end connects the 4th pipeline, and the other end connects d check valve 17.
On the basis of ensuring electrohydraulic type power feeding shock absorber installation capability, in order to advanced optimize its energy regenerative efficiency and energy regenerative
Power carries out emulation testing to determine its parameter, as shown in Figure 1, the specific method is as follows based on above-mentioned electrohydraulic type power feeding shock absorber:
Step S100, basic parameter and the excitation of emulation testing are determined.
Step S100 specifically includes the following steps:
Step S110, according to the working environment of damper, the excitation input size of emulation testing is determined.
For example, car is often travelled in urban pavement, road excitation input can be set to A grades of road surfaces or B grades of road surfaces, more
The road excitation of wild vehicle warp may be configured as D grades of road surfaces etc..In order to facilitate calculating, using sinusoidal excitation, in fact, road surface is swashed
Encouraging is that many sinusoidal excitations are formed by stacking, can be excellent by inputting practical road excitation, then by emulating when practical model machine produces
Dissolve optimal component parameters.It is more in line with actual requirement in this way.
Step S120, according to the applied vehicle of damper, dynamic suspension system of vehicles response condition is determined.
Dynamic suspension system of vehicles is responded and is determined by tire stiffness, spring carried mass, nonspring carried mass, suspension rate, suspension damping, this
It will determine the amplitude size of damper.
Step S130, the vehicle according to applied by damper determines 10 basic size size of hydraulic cylinder.
According to the 10 basic parameter size of Truck type choice hydraulic cylinder that damper is applied, such as Beijing Jeep, the reality of cylinder body 11
Using stroke probably in 300mm or so, the meeting of car is a little bit smaller, and the oversize vehicles such as heavy truck can be big, and the parameter value is by actually answering
It is determined with vehicle.
Step S200, it carries out emulation testing and exports result；
Step S200 specifically includes the following steps:
Step S210, axle speed is exported.
Step S220, output system pressure.
Step S230, energy regenerative power is exported.
Step S240, energy regenerative efficiency is exported.
Step S300, sort result will be exported, and key index will be compared；
Step S300 specifically includes the following steps:
Step S310, compare axle speed.
Step S320, comparison system pressure.
Step S330, compare energy regenerative power.
Step S340, compare energy regenerative efficiency.
Here key index includes axle speed, system pressure, energy regenerative power and energy regenerative efficiency.
Step S400, according to principle of orthogonal experiment, average response analysis is carried out, and parameter is optimized.
Specifically, mean value response analysis is carried out using aggregative equilibrium method, parameter is optimized.
Step S500, optimum results are exported.
By optimization it is found that the discharge capacity of the internal diameter of cylinder body 11 and motor 20 to the energy regenerative efficiency of electrohydraulic type power feeding shock absorber and
The influence of energy regenerative power is maximum, and when the internal diameter of cylinder body 11 is 25-75mm, and the discharge capacity of motor 20 is 7.07-11.55ml/rec
When, electrohydraulic type power feeding shock absorber energy regenerative efficiency with higher and energy regenerative power.Preferably, the internal diameter of cylinder body 11 is 50mm, horse
Discharge capacity up to 20 is 5.77cc.
In a preferred embodiment of the utility model, the stroke of the piston 12 is 150-300mm, the hydraulic stem
13 diameter is 16-28mm.First check valve, the second one-way valve internal diameter be 6.35-19.05mm.
In a preferred embodiment of the utility model, as shown in figures 2-6, damper further includes accumulator 40, described
Accumulator 40 is connect with the second end of the motor 20, and specifically, the tenth pipeline one end connects accumulator 40, other end connection the
Four pipelines；The accumulator 40 is bladder accumulator 40, and the volume of the bladder accumulator 40 is 0.4-1L.It is oily herein
Liquid is introduced into accumulator 40, and the effect of accumulator 40 is to settle out the liquid stream of oscillation, flows into the liquid stream of motor 20 more
To be steady, this is beneficial to the work of motor 20, and the working life of motor 20 can be improved, and reduces component fatigue damage.
In a further embodiment, the diameter of hydraulic stem 13 be 20mm, the first check valve, second one-way valve internal diameter be
9.53mm, when the volume of bladder accumulator 40 is 0.63L, energy regenerative efficiency and energy regenerative power are best.
In a preferred embodiment of the utility model, as shown in figures 2-6, damper further includes oil storage room 50, described
Oil storage room 50 is connect with the first end of the motor 20, and specifically, the 9th pipeline one end connects oil storage room 50, other end connection the
One pipeline.The top of cylinder body 11 is arranged in oil storage room 50.
In a preferred embodiment of the utility model, the motor 20 is gear-type hydraulic motor 20, the motor
20 discharge capacity is 7.07-11.55ml/rec.
In a preferred embodiment of the utility model, the motor 20 is connected with the generator 30 by shaft coupling 21
It connects.Shaft coupling 21 plays the role of protecting generator 30, naturally it is also possible to, motor 20 and generator are connected using other devices
30, or motor 20 is directly connected by the shaft of motor 20 with generator 30.
In a preferred embodiment of the utility model, the resistance value of generator 30 plays energy regenerative efficiency and energy regenerative power
Great influence, 30 resistance value of generator be 11 Ω, 20 Ω, 30 Ω, 40 Ω when, each 30 resistance value of generator pair energy regenerative efficiency difference
It is 37.22%, 39.46%, 38.5%, 36.88%.It is found that when 30 resistance value of generator is 20 Ω, energy regenerative efficiency highest.Such as Fig. 6
Shown, the usual generator 30 includes mag-dynamo 31, internal resistance 33, load resistance 32 and coil 34.In order to obtain
Preferable energy regenerative efficiency and energy regenerative power are obtained, the internal resistance 33 of the mag-dynamo 31 is 5.6-7.5 Ω.The permanent magnetism is straight
The load resistance 32 for flowing generator 30 is adjustable rheostat, and adjustable Standard resistance range is 10-100 Ω.
Accumulator 40, motor 20 are connect with 30 axial order of generator, each element serial or parallel connection operation, all these members
Part is installed in hydraulic cylinder side by mounting base, and mounting means is simple, reduces maintenance and manufacturing cost.High concentration makes the liquid
The fully enclosed use of electric-type power feeding shock absorber is possibly realized, and reduces the integration complexity of damper, can be included in
It is suitble to position close to or within wheel, is installed and used convenient for real vehicle.
And the integration mode can effectively reduce the use of fluid pressure line, reduce damaging in oil liquid flow process along journey
It loses.When oil liquid flows, by each element responds sequence (i.e. accumulator 40, motor 20, generator 30), the distance of each interelement is (i.e.
Accumulator 40 is at a distance from motor 20, motor 20 passes through shaft coupling 21 at a distance from generator 30) accomplish minimum, it can be effective
Improve the response time, reduces the range loss (hydraulic slip, electrical loss) of interelement.Wherein, shaft coupling 21 and motor 20
Engineering plastics production can be used to reduce the loss of system rotary inertia in shaft.Meanwhile motor 20 is fixed at first with generator 30
In mounting base, therefore relative position is fixed, convenient for being measured using the monitoring of photoelectric sensor.
In conclusion electrohydraulic type power feeding shock absorber provided by the utility model, the electrohydraulic type power feeding shock absorber include:
Hydraulic cylinder and oil storage room, the hydraulic cylinder include: cylinder body, are arranged in the intracorporal piston of the cylinder and connect with the piston
Hydraulic stem, wherein setting is there are two oil inlet, two oil outlets and mounting base on the cylinder side wall, the mounting base
It is provided with the sequentially connected generator of axial direction, motor and the accumulator along the cylinder body；The oil storage room passes through two first
Check valve is connect with two oil inlets respectively, and the oil storage room is connect with the motor；The accumulator passes through two the
Two check valves are connect with two oil outlets respectively.Due to hydraulic stem push piston rise or fall when, by motor
The flow direction of oil is identical, that is to say, that the rotation direction of motor will not change, and inertia loses smaller, energy regenerative efficiency and energy regenerative
Power is higher.Energy regenerative device is stable, structure is simple, it is at low cost, be easily installed.
It should be understood that the application of the utility model is not limited to above-mentioned citing, those of ordinary skill in the art are come
It says, it can be modified or changed according to the above description, and all these modifications and variations all should belong to the appended power of the utility model
The protection scope that benefit requires.
Claims (9)
1. a kind of electrohydraulic type power feeding shock absorber, comprising: hydraulic cylinder, the hydraulic cylinder include: cylinder body, setting it is intracorporal in the cylinder
Piston and the hydraulic stem being connect with the piston, which is characterized in that there are two oil inlets, two for setting on the cylinder side wall
Oil outlet and mounting base, two oil inlets are located at the top and bottom of the cylinder side wall, and two described fuel-displaced
Mouth is located at the top and bottom of the cylinder side wall, and it is sequentially connected that the mounting base is provided with the axial direction along the cylinder body
Motor and generator；The first end of the motor is connect with two oil inlets respectively by two the first check valves, described
The second end of motor is connect with two oil outlets respectively by two second one-way valves.
2. electrohydraulic type power feeding shock absorber according to claim 1, which is characterized in that the internal diameter of the cylinder body is 25-75mm,
The stroke of the piston is 150-300mm, and the diameter of the hydraulic stem is 16-28mm.
3. electrohydraulic type power feeding shock absorber according to claim 1, which is characterized in that first check valve, described second
The internal diameter of check valve is 6.35-19.05mm.
4. electrohydraulic type power feeding shock absorber according to claim 1, which is characterized in that it further includes oil storage room, the oil storage
Room is connect with the first end of the motor.
5. electrohydraulic type power feeding shock absorber according to claim 1, which is characterized in that it further includes accumulator, the accumulation of energy
Device is connect with the second end of the motor；The accumulator is bladder accumulator, and the volume of the bladder accumulator is
0.4-1L。
6. electrohydraulic type power feeding shock absorber according to claim 1, which is characterized in that the motor is gear-type hydraulic horse
It reaches, the discharge capacity of the motor is 7.07-11.55ml/rec.
7. electrohydraulic type power feeding shock absorber according to claim 1, which is characterized in that the motor passes through with the generator
Shaft joint connection.
8. electrohydraulic type power feeding shock absorber according to claim 1, which is characterized in that the generator is Permanent magnet DC power generation
Machine, the internal resistance of the mag-dynamo are 5.6-7.5 Ω.
9. electrohydraulic type power feeding shock absorber according to claim 8, which is characterized in that the load of the mag-dynamo
Resistance is adjustable rheostat, and adjustable Standard resistance range is 10-100 Ω.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821946587.5U CN209130105U (en) | 2018-11-23 | 2018-11-23 | Hydro-electric type energy feedback shock absorber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821946587.5U CN209130105U (en) | 2018-11-23 | 2018-11-23 | Hydro-electric type energy feedback shock absorber |
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| CN209130105U true CN209130105U (en) | 2019-07-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296693A (en) * | 2018-11-23 | 2019-02-01 | 中国人民解放军国防科技大学 | Hydro-electric energy feedback shock absorber and parameter determination method thereof |
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2018
- 2018-11-23 CN CN201821946587.5U patent/CN209130105U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296693A (en) * | 2018-11-23 | 2019-02-01 | 中国人民解放军国防科技大学 | Hydro-electric energy feedback shock absorber and parameter determination method thereof |
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