CN107044504B - A kind of damping of electric vehicles device assembly - Google Patents
A kind of damping of electric vehicles device assembly Download PDFInfo
- Publication number
- CN107044504B CN107044504B CN201611222882.1A CN201611222882A CN107044504B CN 107044504 B CN107044504 B CN 107044504B CN 201611222882 A CN201611222882 A CN 201611222882A CN 107044504 B CN107044504 B CN 107044504B
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- Prior art keywords
- piston
- guide
- damping
- buffer
- centre pilot
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/002—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising at least one fluid spring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3235—Constructional features of cylinders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3278—Details for lubrication
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/36—Special sealings, including sealings or guides for piston-rods
- F16F9/362—Combination of sealing and guide arrangements for piston rods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
Abstract
The invention discloses a kind of damping of electric vehicles device assemblies, including buffer housing, buffer housing has piston guide chamber, piston guide is intracavitary to be slidably fitted with centre pilot axis, piston guide is intracavitary to be equipped with guide cylinder, positioning pin is equipped between guide cylinder and buffer housing, the piston of centre pilot axis is equipped with guide piston, guide piston is slidably mounted in guide cylinder, reset spring is equipped in guide cylinder, piston compression chamber is equipped in buffer case body, centre pilot axis protrudes into one end in buffer case body equipped with compression piston, gas energy storage chamber is set in buffer case body, gas energy storage chamber is connected to piston compression chamber, gas energy storage chamber is connected to the outlet passageway being set in buffer case body, compressed spring is equipped between hinged set and buffer housing.The vibration damper assembly is designed and is cooperated by unique structure, to achieve many advantageous effects, has applications well prospect and industrial production potential in auto industry field, it may have good promotional value.
Description
Technical field
The present invention relates to a kind of damper, more particularly to a kind of damping of electric vehicles device assembly belongs to damper technology
Field.
Background technique
In the automotive industry, in order to make the vibration of vehicle frame and vehicle body decay rapidly, improve electric vehicle traveling ride comfort and
Comfort is typically equipped with damper in the suspension system of electric vehicle.Damper is the rapid wear accessory in electric vehicle use process,
And quality, the superiority and inferiority of performance of its working condition, the service life of the stationarity and other parts of electric vehicle traveling will be directly affected.Base
In such consideration, damper should be made often in good working order.
The working principle of damper is used to by the concussion after inhibition spring shock-absorbing when rebound and from the impact on road surface
Contend with the twisting vibration (i.e. the impact force of crankshaft subject cylinder igniting and the phenomenon that twist) of crankshaft.In suspension systems, due to bullet
Property element be hit generation vibration, be installed in parallel damper with elastic element to improve electric vehicle ride performance, in suspension, from
And the vibration that decayed.
In addition, some dampers in order to increase its steering capability, all use centre pilot axis, to increase the steady of its operation
It is qualitative.But the friction between centre pilot axis and shell is larger, it is another although on the one hand absorbing partial vibration energy
Aspect damping effect is undesirable, once centre pilot axis and shell form rigid contact, will transfer vibrations on shell,
It is poor so as to cause damping effect.
Currently, people have carried out a large amount of further investigation to damping of electric vehicles device, and achieve some achievements, such as:
CN202402539U discloses a kind of dedicated permanent-magnet suspended damper of electric car comprising connection pillar and outer
Dust cover, connection pillar are connected with outer dust cover, and damping tappet and cylinder body, damping tappet difference are provided in the outer dust cover
It is connected with outer dust cover and damping, damping is connect with suspension end magnet, and cylinder body is connect with fixing end main magnet.By utilizing permanent magnetism
Repulsion between the magnetic strength phenomenon and permanent magnet of body achieves the goal, and has a good nonlinear stiffness characteristic, and has and make
With the advantages that service life is long, technology implementation is of less demanding, noiseless.
CN104141724A discloses a kind of rear shock absorber band main assemblage of spring of electric car change performance force value comprising
The rear dust cover that rear shock absorber and rear shock absorber with lower spring cup are equipped with, rear dust cover outer end are equipped with upper spring
Seat, the upper spring seat inside are equipped with isolation cushion on spring, between isolation cushion and lower spring cup, are equipped on the spring
The pitch size of the rear coil springs being socketed on rear dust cover and rear shock absorber, the rear coil springs is not identical.It has
Beneficial effect is the ride comfort and comfort of loading capacity increase front and back during electric automobile during traveling, has before comparison and changes greatly very much
It sees, effect is ideal.
CN205064667U discloses a kind of damper for electric car travel increasing device, described for electric car travel increasing device
Damper, including the first connecting plate, the second connecting plate and rubber parts, described rubber parts one end and first connecting plate lower surface
Connection, the rubber parts other end are connect with second connecting plate upper surface, and first connecting plate upper surface is equipped with first
Stud, second connecting plate lower surface are equipped with the second stud.The structure of the damper is simple, and simple shape can be used in rubber parts
The solid rubber of shape, easy to process, production process is simple, and vulcanization is convenient, lowers production cost, the first connecting plate and the second connection
Plate is respectively used to connection automobile support and distance increasing unit, and the vibration that distance increasing unit issues is lost when passing through rubber parts, subtracts
It is obvious to shake noise reduction and other effects, and the vertical tremor of car body will not be transmitted to distance increasing unit.
As described above, a variety of dampers are disclosed in the prior art, but for novel damper, there are still continue to grind
The necessity and demand studied carefully, this not only has urgent researching value, it may have good economic benefit and commercial application potentiality, this
It is leaned on where the power that exactly present invention is accomplished with basis.
Summary of the invention
For the damper of development of new, the present inventor has made intensive studies this, is paying a large amount of creative labor
After dynamic, so as to complete the present invention.
Specifically, having the technical problems to be solved by the present invention are: providing a kind of damping of electric vehicles device assembly
Effect improve damping effect, be easy to part exchanging, reduce maintenance cost many advantages, such as, have good industrialized popularization value and
Application potential.
In order to solve the above technical problems, the technical scheme is that provide a kind of damping of electric vehicles device assembly, it is described to subtract
Shake device assembly includes the buffer housing by cushion collar connection on the car body, and the buffer housing has piston guide chamber,
The piston guide is intracavitary to be slidably fitted with centre pilot axis, and one end that the centre pilot axis stretches out the buffer housing is logical
It crosses hinged set and connects electronic suspension, the piston guide is intracavitary to be equipped with guide cylinder, the guide cylinder and the buffer housing
Between be equipped with positioning pin, the piston of the centre pilot axis is equipped with guide piston, and the guide piston is slidably mounted on described
In guide cylinder, reset spring is equipped in the guide cylinder, described reset spring one end abuts against on the guide piston, the other end
It abuts against in the buffer housing, the piston compression chamber for being connected to the piston guide chamber, institute is equipped in the buffer case body
It states one end that centre pilot axis protrudes into the buffer case body and is equipped with compression piston, the compression piston is slidably mounted on described
In piston compression chamber, the first inlet channel of connection ambient atmosphere and the piston compression chamber is equipped in the buffer case body,
It is equipped with the first breather check valve in first inlet channel, sets a gas energy storage chamber, the gas in the buffer case body
Energy storage chamber is connected to the piston compression chamber by the second inlet channel, and it is unidirectional to be equipped with the second air inlet in second inlet channel
Valve, the gas energy storage chamber are connected to the outlet passageway being set in the buffer case body；
The buffer housing has the extension end extended to the hinged set, and the centre pilot axis is through described
Extension end；
Cushion is equipped between the hinged set and the extension end of the buffer housing, the centre pilot axis is stretched
The cushion is run through in the part of the buffer housing out；
Compressed spring is equipped between the hinged set and the buffer housing, the centre pilot axis runs through the compression
Spring, and the compressed spring is located at the outside of the cushion, the specific set-up mode of the compressed spring are as follows: the hinge
It is fixedly installed with the first spring base in female connector, second spring seat, the second spring are fixedly installed in the buffer housing
Cover for seat is loaded on the extension end, and the compressed spring clamps between first spring base and the second spring seat.
The damping of electric vehicles device assembly of the invention, is designed by structure so, so that working as the hinged set
When being impacted, centre pilot axis retraction compresses the reset spring, eliminates partial vibration, and in described
The retraction of heart guiding axis, the compression piston compress the piston compression chamber internal cavity, so that these compressed airs are described in
Second breather check valve enters the gas energy storage chamber, stores energy, and the process also improves damping effect simultaneously；
And the compressed spring can secondary buffer play cushioning effect, thus profit when reducing buffer damping
The oil pressure of lubricating oil reduces the pressure oscillation of oil lubrication system；
More and；The cushion can stop the sundries such as dust to be attached on the centre pilot axis, advantageously protect
The sealing elements such as oil sealing, rubber ring, extend the service life of damper of the present invention.
In the damping of electric vehicles device assembly of the invention, the cushion can be various rubber type of material or macromolecule
Elastomeric material, preferably nitrile rubber or styrene analog thermoplastic elastomer material.
In the damping of electric vehicles device assembly of the invention, the outlet passageway can connect other lubricating pipes；Or
Person when not in use, also can be used blocking and be blocked.
In the damping of electric vehicles device assembly of the invention, as a kind of perferred technical scheme, in order to further mention
High buffering and damping effect, the cushion collar and the hinged set are all made of rubber material and are made.
Wherein, the common used material that the rubber material right and wrong are usually advised, may be, for example, various tartans, herein not
It is described in detail again.
In the damping of electric vehicles device assembly of the invention, as a kind of perferred technical scheme, the buffer case
Body is equipped with gas-permeable channels, and the guide cylinder is equipped with air hole, and the air hole is connected to the gas-permeable channels, the air hole
One end positioned at the guide cylinder far from the guide piston.
It is designed by structure so, can be connected between the guide piston and the buffer housing extraneous big
Gas avoids when the guide piston retracts and generates back pressure, to reduce energy loss.
In the damping of electric vehicles device assembly of the invention, as a kind of perferred technical scheme, the buffer case
It is equipped with oil storage tank in vivo, the oil storage tank is located at the outside of the guide cylinder, the separate reset spring on the guide cylinder
One end is equipped with fuel feed hole, and the fuel feed hole is connected to the oil storage tank and the piston guide chamber.
In the damping of electric vehicles device assembly of the invention, as a kind of perferred technical scheme, the buffer case
It is equipped with air supply channel in vivo, the air supply channel is connected to the oil storage tank and the gas energy storage chamber, sets in the air supply channel
Have and limits the gas supply check valve that gas is flowed to the oil storage tank by the gas energy storage chamber.
It is designed by structure so, it, will be in the oil storage tank using the intracavitary gas energy of the gas energy storage
Lubricating oil is pumped into the piston guide chamber, the lubrication guide piston and the centre pilot axis by the fuel feed hole.And
The positioning pin, which plays, to be prevented the guide cylinder from rotating during the motion and the fuel feed hole is caused to misplace, described in guaranteeing
The fuel feed hole on guide cylinder can be connected to the piston guide chamber and the oil storage tank always, play positioning action.
In the damping of electric vehicles device assembly of the invention, as a kind of perferred technical scheme, the piston guide
The rear and front end of chamber is respectively equipped with front seal and rear seal, and the front seal and the rear seal are set in described
On centre pilot axis, in the buffer housing close to the front seal one end be equipped with the first drainback passage, described first
Drainback passage is connected to the piston guide chamber.
In the damping of electric vehicles device assembly of the invention, as a kind of perferred technical scheme, the front seal
It is oil sealing with the rear seal.
In the damping of electric vehicles device assembly of the invention, as a kind of perferred technical scheme, the front seal
It is rubber material or macromolecular elastomer material with the rear seal.
Wherein, the common used material that the rubber material and macromolecular material right and wrong are usually advised, may be, for example, various conjunctions
At rubber material or macromolecular elastomer material (such as styrene analog thermoplastic elastomer material etc.), no longer carry out herein detailed
Description.
It is designed by structure so, the centre pilot axis and the buffer housing are by the front seal and described
Rear seal is spaced, and the front seal and the rear seal are due to for rubber material or macromolecular elastomer material
Material, so as to buffer the vibration of the centre pilot axis, avoids the buffer housing from being rushed by the centre pilot axis
It hits and vibrates aggravation.
In the damping of electric vehicles device assembly of the invention, as a kind of perferred technical scheme, the extension end
End is fixed with a dustproof cover, is equipped with oil sealing in the extension end, the oil sealing leans with the dustproof cover, and the center is led
Run through the oil sealing and the dustproof cover to axis.
It is designed by structure so, is spaced the centre pilot axis with the extension end using the oil sealing, it can
To buffer the vibration of the centre pilot axis, avoids the buffer housing from being vibrated by the impact of the centre pilot axis and add
Play further improves buffering effect.
In the damping of electric vehicles device assembly of the invention, as a kind of perferred technical scheme, in the extension end
Equipped with a spacer, the spacer is set in the outside of the centre pilot axis, and the end of the spacer abuts against the oil sealing
On, lubricant reservoir is equipped between the spacer and the extension end, the lubricant reservoir passes through described in the connection of the second oil inlet passage
Oil storage tank, the lubricant reservoir are equipped with the second drainback passage close to one end of the oil sealing, and second drainback passage is connected to institute
The first drainback passage is stated, the spacer is equipped with several through-holes.
It is designed by structure so, the lubricating oil in the lubricant reservoir can be made to enter in the spacer, lubrication
The centre pilot axis, further improves lubricant effect, avoids card resistance phenomenon when centre pilot axis operation.
In the damping of electric vehicles device assembly of the invention, as a kind of perferred technical scheme, in the extension end
Equipped with a guide pad, the guide pad is fixed on the inner wall of the spacer, is provided on the guide pad and is led with the center
To the compatible pilot hole of axis.
It is designed by structure so, on the one hand, the guide pad plays supporting role, improves the strong of the spacer
Degree；On the other hand, the guide pad plays guiding role.It is well known that the centre pilot axis extension elongation is longer, disturb
Degree deformation is bigger, will lead to centre pilot axis off-axis in telescopic process, so that the damage to sealing element is caused,
The service life of sealing element is reduced, and the guide pad reduces institute then at a fulcrum of the centre pilot axis
The deflection deformation of centre pilot axis is stated, and then extends the service life of damper of the present invention.
As described above, the damping of electric vehicles device assembly passes through only the present invention provides a kind of damping of electric vehicles device assembly
Special structure design and mutual cooperation, so that many advantageous effects are achieved, such as:
1, due to being provided with reset spring associated with centre pilot axis and gas energy storage chamber, when hinged set is impacted
When, centre pilot axis retraction, compression reseting spring eliminates partial vibration, and with the retraction of centre pilot axis, compression piston
Air in compression piston compression chamber, so that these compressed airs enter gas energy storage chamber by the second breather check valve, storage
Energy, and the process also improves damping effect simultaneously；Again due to being provided with guide cylinder, so that work when buffer housing is processed
Skill becomes simpler and is easy, it is only necessary to the inner wall of guide cylinder finished, in use, guide cylinder abrasion
After can be individually replaced guide cylinder, without replacing entire buffer housing, greatly reduce maintenance cost, have fine
Use value.
2, since buffer housing is equipped with gas-permeable channels, can be connected between guide piston and buffer housing outer
Boundary's atmosphere, generates back pressure when guide piston being avoided to retract, reduce energy loss, improves gas energy storage efficiency.
3, again due to being equipped with positioning pin between guide cylinder and buffer housing, positioning pin, which plays, prevents guide cylinder from moving
It rotates in the process and fuel feed hole is caused to misplace, to guarantee that the fuel feed hole on guide cylinder can be connected to piston guide chamber and oil storage always
Slot.
4, since the rear and front end of piston guide chamber is respectively equipped with front seal and rear seal, by centre pilot axis and delay
It rushes device shell to separate by front seal and rear seal, and front seal and rear seal all use rubber material, it can be with
The vibration for buffering centre pilot axis, avoids buffer housing from receiving the impact of centre pilot axis and vibrate aggravation.
5, due to being equipped with a guide pad in extension end, guide pad is fixed on the inner wall of spacer, be provided on guide pad with
The compatible pilot hole of centre pilot axis, on the one hand, guide pad plays supporting role, improves the intensity of spacer, another party
Face, guide pad play guiding role.
6, due to being equipped with cushion between hinged set and buffer housing, cushion is set in centre pilot axis and stretches out buffering
The part of device shell, one side cushion can stop dust to be attached on centre pilot axis, effectively protect in buffer
The sealing element of oil sealing, rubber ring etc. extends the service life of damper of the present invention, on the other hand, when center guiding axis returns
When contracting, hinged set and buffer housing have been separated, has reduced impact force.
7, due to being equipped with compressed spring between hinged set and buffer housing, secondary buffer plays cushioning effect, from
And when reducing buffer damping lubricating oil oil pressure, reduce the pressure oscillation of oil lubrication system.
8, the power of lubricating oil system is provided by gas energy storage chamber, can also for draining into other oil sites, by impact force,
Save lubricating power, it is not necessary to which frequently enabling grease pump can be realized lubrication, have very important significance.
As described above, the damping of electric vehicles device assembly passes through only the present invention provides a kind of damping of electric vehicles device assembly
Special structure design and mutual cooperation have good answer in auto industry field to achieve many advantageous effects
With prospect and industrial production potential, it may have good promotional value.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of damping of electric vehicles device assembly of the present invention；
Fig. 2 is the partial enlargement structural representation of A in Fig. 1；
Fig. 3 is the partial enlargement structural representation of B in Fig. 1；
Wherein, in figs. 1 to 3, each number designation is respectively referred to for following concrete meaning, element and/or component.
In figure: 1, hinged set, 2, positioning pin, the 3, first spring base, 4, buffer housing, 401, piston guide chamber, 402,
Piston compression chamber, the 403, first inlet channel, 404, oil storage tank, 405, outlet passageway, the 406, second inlet channel, 407, gas supply
Channel, 408, gas-permeable channels, 409, gas energy storage chamber, the 410, first drainback passage, the 411, second drainback passage, 5, centre pilot
Axis, 501, guide piston, 502, compression piston, 6, guide cylinder, 601, air hole, 602, fuel feed hole, 7, reset spring, 8, buffering
Pad, 9, extension end, 901, dustproof cover, 902, oil sealing, 903, guide pad, 904, lubricant reservoir, 10, second spring seat, 11, compression
Spring, the 12, first breather check valve, the 13, second breather check valve, 14, gas supply check valve, 15, front seal, 16, rear sealing
Part, 17, spacer, 18, cushion collar.
It should be noted that these attached drawings are only the description to preferred embodiment of the present invention, it is not meant to other non-optimum
Mode, such as usual manner is selected to can not achieve the present invention.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.But the purposes and mesh of these exemplary embodiments
Be only used to enumerate the preferred embodiment of the present invention, not real protection scope of the invention is constituted any type of any
It limits, it is more non-that protection scope of the present invention is confined to this.
As shown in Figure 1, Figure 2 and Fig. 3 is jointly shown, and the present invention provides a kind of damping of electric vehicles device assemblies comprising by slow
18 connection buffer housing 4 on the car body of punching set, buffer housing 4 have a piston guide chamber 401, in piston guide chamber 401
It is slidably fitted with centre pilot axis 5, one end of 5 projection buffer shell 4 of centre pilot axis connects electric vehicle by hinged set 1 and hangs
Frame；Here, in order to further increase buffering and damping effect, cushion collar 18 and hinged set 1 are all made of rubber material and are made；Piston is led
It is equipped with guide cylinder 6 into chamber 401, positioning pin 2 is equipped between guide cylinder 6 and buffer housing 4, on the piston of centre pilot axis 5
Equipped with guide piston 501, guide piston 501 is slidably mounted in guide cylinder 6, and reset spring 7 is equipped in guide cylinder 6, resets bullet
7 one end of spring abuts against on guide piston 501, and the other end abuts against in buffer housing 4, and connection is equipped in buffer housing 4 and is lived
The piston compression chamber 402 of directed cavity 401 is filled in, centre pilot axis 5 protrudes into one end in buffer housing 4 and is equipped with compression piston 502,
Compression piston 502 is slidably mounted in piston compression chamber 402, and connection ambient atmosphere and piston compression are equipped in buffer housing 4
First inlet channel 403 of chamber 402 is equipped with the first breather check valve 12 in first inlet channel 403, sets in buffer housing 4
One gas energy storage chamber 409, gas energy storage chamber 409 are connected to piston compression chamber 402 by the second inlet channel 406, and the second air inlet is logical
The second breather check valve 13 is equipped in road 406, gas energy storage chamber 409 is connected to the outlet passageway being set in buffer housing 4
405；
The buffer housing 4 has the extension end 9 extended to hinged set 1, and centre pilot axis 5 runs through extension end 9；
Cushion 8 is equipped between the hinged set 1 and the extension end 9 of buffer housing 4, centre pilot axis 5 stretches out buffering
Cushion 8 is run through in the part of device shell 4；
Compressed spring 11 is equipped between the hinged set 1 and buffer housing 4, centre pilot axis 5 runs through compressed spring 11,
And compressed spring 11 is located at the outside of cushion 8, specific set-up mode are as follows: the first spring is fixedly installed in hinged set 1
Seat 3 is fixedly installed with second spring seat 10 in buffer housing 4, and second spring seat 10 is set in extension end 9, compressed spring 11
It clamps between the first spring base 3 and second spring seat 10.
11 secondary buffer of compressed spring plays cushioning effect, thus lubricating oil when reducing buffer damping
Oil pressure reduces the pressure oscillation of oil lubrication system.
It is designed by structure so, so that the centre pilot axis 5 returns when the hinged set 1 is impacted
Contracting, compresses the reset spring 11, eliminates partial vibration, and with the retraction of the centre pilot axis 5, the compression is lived
402 cavitys in the 502 compression piston compression chambers of plug so that these compressed airs by second breather check valve 13 into
Enter the gas energy storage chamber 409, stores energy, and the process also improves damping effect simultaneously；
And the compressed spring 11 can secondary buffer play cushioning effect, thus when reducing buffer damping
The oil pressure of lubricating oil reduces the pressure oscillation of oil lubrication system；
More and, the cushion 8 can stop the sundries such as dust to be attached on centre pilot axis 5, advantageously protect
The sealing elements such as oil sealing, rubber ring extend the service life of damper of the present invention.
The cushion can 8 be various rubber type of material or macromolecular elastomer, preferably nitrile rubber or phenylethylene
Thermoplastic elastomer (TPE).
The outlet passageway 405 can connect other lubricating pipes, when not in use, blocking also can be used and blocked.
When hinged set 1 is impacted, centre pilot axis 5 bounces back, compression reseting spring 7, eliminates partial vibration, and as center is led
To the retraction of axis 5,502 compression piston compression chamber of compression piston, 402 internal cavity, so that these compressed airs pass through the second air inlet list
Enter gas energy storage chamber 409 to valve 13, stores energy, and the process also improves damping effect simultaneously.
The buffer housing 4 is equipped with gas-permeable channels 408, and guide cylinder 6 is equipped with air hole 601, and air hole 601 is connected to
Gas-permeable channels 408, air hole 601 are located at the one end of guide cylinder 6 far from guide piston 501.
It is designed by structure so, can be connected to ambient atmosphere between guide piston 501 and buffer housing 4,
It avoids guide piston 501 from generating back pressure when retracting, reduces energy loss.
It is equipped with oil storage tank 404 in the buffer housing 4, oil storage tank 404 is located at the outside of guide cylinder 6, on guide cylinder 6 far
One end from reset spring 7 is equipped with fuel feed hole 602, and fuel feed hole 602 is connected to oil storage tank 404 and piston guide chamber 401.
Air supply channel 407 is equipped in the buffer housing 4, air supply channel 407 is connected to oil storage tank 404 and gas energy storage chamber
409, interior be equipped with of air supply channel 407 limits the gas supply check valve 14 that gas is flowed to oil storage tank 404 by gas energy storage chamber 409.
It is designed by structure so, using the gas energy in gas energy storage chamber 409, by the profit in oil storage tank 404
Lubricating oil is pumped into piston guide chamber 401, lubrication guide piston 501 and centre pilot axis 5 by fuel feed hole 602.And positioning pin 2 rises
To prevent guide cylinder 6 from rotating during the motion and cause fuel feed hole 602 misplace, to guarantee the fuel feed hole 602 on guide cylinder 6
Always it can be connected to piston guide chamber 401 and oil storage tank 404, play positioning action.
The rear and front end of the piston guide chamber 401 is respectively equipped with front seal 15 and rear seal 16, front seal 15
It is preferably herein oil sealing with rear seal 16, front seal 15 and rear seal 16 are set on centre pilot axis 5, by center
Guiding axis 5 is spaced with buffer housing 4 by front seal 15 and rear seal 16, and front seal 15 and rear seal
16 all use rubber material, can buffer the vibration of centre pilot axis 5, buffer housing 4 is avoided to be rushed by centre pilot axis 5
It hits and vibrates aggravation, be equipped with the first drainback passage 410 close to one end of front seal 15 in buffer housing 4, the first oil return is logical
Road 410 is connected to piston guide chamber 401.
The end of the extension end 9 is fixed with a dustproof cover 901, is equipped with oil sealing 902 in extension end 9, oil sealing 902 with it is dust-proof
Lid 901 leans, and centre pilot axis 5 runs through oil sealing 902 and dustproof cover 901
It is designed by structure so, is spaced centre pilot axis 5 and extension end 9 using oil sealing 902, can buffered
The vibration of heart guiding axis 5 avoids buffer housing 4 from being vibrated aggravation by the impact of centre pilot axis 5, further improves slow
Rush effect.
It is equipped with a spacer 17 in the extension end 9, spacer 17 is set in the outside of centre pilot axis 5, and the end of spacer 17
Portion abuts against on oil sealing 902, and lubricant reservoir 904 is equipped between spacer 17 and extension end 9, and lubricant reservoir 904 passes through the second oil inlet
Channel is connected to oil storage tank 404, and lubricant reservoir 904 is equipped with the second drainback passage 411 close to one end of oil sealing 902, and the second oil return is logical
Road 411 is connected to the first drainback passage 410, and spacer 17 is equipped with several through-holes, can make lubricating oil in lubricant reservoir 904 into
Enter in spacer 17, lubricate centre pilot axis 5, further improve lubricant effect, avoids card resistance when centre pilot axis 5 is run
Phenomenon.
It is equipped with a guide pad 903 in the extension end 9, guide pad 903 is fixed on the inner wall of spacer 17, guide pad 903
On be provided with pilot hole compatible with centre pilot axis 5.
It is designed by structure so, on the one hand, guide pad 903 plays supporting role, improves the intensity of spacer 17；
On the other hand, guide pad 903 plays guiding role, it is well known that 5 extension elongation of centre pilot axis is longer, degree of disturbing deformation
It is bigger, it will lead to the off-axis in telescopic process of centre pilot axis 5, to cause the damage to sealing element, reduce close
The service life of element is sealed, and guide pad 903 reduces scratching for centre pilot axis 5 then at a fulcrum of centre pilot axis 5
Degree deformation, and then extend the service life of damper of the present invention.
As described above, the damping of electric vehicles device passes through unique structure the present invention provides a kind of damping of electric vehicles device
Design and cooperate, to achieve many advantageous effects, have a good application prospect in auto industry field and
Industrial production potential, it may have good promotional value.
It should be appreciated that the purposes of these embodiments is merely to illustrate the present invention and is not intended to limit protection model of the invention
It encloses.In addition, it should also be understood that, after reading the technical contents of the present invention, those skilled in the art can make the present invention each
Kind change, modification and/or variation, all these equivalent forms equally fall within guarantor defined by the application the appended claims
Within the scope of shield.
Claims (11)
1. a kind of damping of electric vehicles device assembly, it is characterised in that: the vibration damper assembly includes being connected to car body by cushion collar
On buffer housing, the buffer housing have piston guide chamber, the intracavitary center that is slidably fitted with of the piston guide is led
To axis, one end that the centre pilot axis stretches out the buffer housing connects electronic suspension, the piston by hinged set
It is equipped with guide cylinder in directed cavity, positioning pin is equipped between the guide cylinder and the buffer housing, the centre pilot axis
Piston is equipped with guide piston, and the guide piston is slidably mounted in the guide cylinder, is equipped in the guide cylinder and resets bullet
Spring, described reset spring one end abut against on the guide piston, and the other end abuts against in the buffer housing, the buffering
The piston compression chamber for being connected to the piston guide chamber is equipped in device shell, the centre pilot axis protrudes into the buffer case body
One end be equipped with compression piston, the compression piston is slidably mounted in the piston compression chamber, sets in the buffer case body
There is the first inlet channel of connection ambient atmosphere and the piston compression chamber, is equipped with the first air inlet list in first inlet channel
To valve, a gas energy storage chamber is set in the buffer case body, the gas energy storage chamber is connected to the work by the second inlet channel
Compression chamber is filled in, the second breather check valve is equipped in second inlet channel, the gas energy storage chamber connection is set to described slow
Rush the intracorporal outlet passageway of device shell；
The buffer housing has the extension end extended to the hinged set, and the centre pilot axis runs through the stretching
End；
Cushion is equipped between the hinged set and the extension end of the buffer housing, the centre pilot axis stretches out institute
The part of buffer housing is stated through the cushion；
Compressed spring is equipped between the hinged set and the buffer housing, the centre pilot axis runs through the compression bullet
Spring, and the compressed spring is located at the outside of the cushion, the specific set-up mode of the compressed spring are as follows: it is described hinged
It puts on and is fixedly installed with the first spring base, second spring seat, the second spring seat are fixedly installed in the buffer housing
It is set in the extension end, the compressed spring clamps between first spring base and the second spring seat.
2. damping of electric vehicles device assembly as described in claim 1, it is characterised in that: the cushion is macromolecular elastomer material
Material.
3. damping of electric vehicles device assembly as claimed in claim 2, it is characterised in that: the cushion is nitrile rubber or benzene second
Ethylenic thermoplastic elastomeric material.
4. damping of electric vehicles device assembly as described in claim 1, it is characterised in that: the buffer housing is equipped with ventilative logical
Road, the guide cylinder are equipped with air hole, and the air hole is connected to the gas-permeable channels, and the air hole is located at the guide cylinder
One end far from the guide piston.
5. damping of electric vehicles device assembly according to any one of claims 1-4, it is characterised in that: set in the buffer case body
There is oil storage tank, the oil storage tank is located at the outside of the guide cylinder, and one end far from the reset spring is set on the guide cylinder
There is fuel feed hole, the fuel feed hole is connected to the oil storage tank and the piston guide chamber.
6. damping of electric vehicles device assembly as claimed in claim 5, it is characterised in that: it is logical to be equipped with gas supply in the buffer case body
Road, the air supply channel are connected to the oil storage tank and the gas energy storage chamber, are equipped in the air supply channel and limit gas by institute
State the gas supply check valve that gas energy storage chamber flows to the oil storage tank.
7. damping of electric vehicles device assembly as claimed in claim 6, it is characterised in that: the rear and front end of the piston guide chamber point
Not She You front seal and rear seal, the front seal and the rear seal be set on the centre pilot axis,
It is equipped with the first drainback passage close to one end of the front seal in the buffer housing, first drainback passage is connected to institute
State piston guide chamber.
8. damping of electric vehicles device assembly as claimed in claim 7, it is characterised in that: the front seal and the rear seal
It is macromolecular elastomer material.
9. damping of electric vehicles device assembly as claimed in claim 8, it is characterised in that: it is anti-that the end of the extension end is fixed with one
Dirt lid is equipped with oil sealing in the extension end, and the oil sealing leans with the dustproof cover, and the centre pilot axis is through the oil
Envelope and the dustproof cover.
10. damping of electric vehicles device assembly as claimed in claim 9, it is characterised in that: be equipped with a spacer, institute in the extension end
State the outside that spacer is set in the centre pilot axis, and the end of the spacer abuts against on the oil sealing, the spacer with
Lubricant reservoir is equipped between the extension end, the lubricant reservoir is connected to the oil storage tank, the profit by the second oil inlet passage
Lubricating cavity is equipped with the second drainback passage close to one end of the oil sealing, and it is logical that second drainback passage is connected to first oil return
Road, the spacer are equipped with several through-holes.
11. damping of electric vehicles device assembly as claimed in claim 10, it is characterised in that: be equipped with a guiding in the extension end
Block, the guide pad are fixed on the inner wall of the spacer, are provided on the guide pad and are adapted with the centre pilot axis
Pilot hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611222882.1A CN107044504B (en) | 2016-12-27 | 2016-12-27 | A kind of damping of electric vehicles device assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611222882.1A CN107044504B (en) | 2016-12-27 | 2016-12-27 | A kind of damping of electric vehicles device assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107044504A CN107044504A (en) | 2017-08-15 |
| CN107044504B true CN107044504B (en) | 2019-01-11 |
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ID=59543172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611222882.1A Active CN107044504B (en) | 2016-12-27 | 2016-12-27 | A kind of damping of electric vehicles device assembly |
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| CN (1) | CN107044504B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2643960A1 (en) * | 1989-03-06 | 1990-09-07 | Carbon Ste Fse Amortisseurs | Improved variable-damping telescopic suspension element |
| DE102007030549A1 (en) * | 2007-06-30 | 2009-01-02 | Zf Friedrichshafen Ag | Piston-cylinder assembly |
| JP6259722B2 (en) * | 2014-06-17 | 2018-01-10 | 株式会社コガネイ | shock absorber |
| CN204878494U (en) * | 2015-08-04 | 2015-12-16 | 浙江名震机械制造有限公司 | Two rings rear damper of a big section of thick bamboo |
-
2016
- 2016-12-27 CN CN201611222882.1A patent/CN107044504B/en active Active
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| Publication number | Publication date |
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| CN107044504A (en) | 2017-08-15 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20181119 Address after: 221700 Youth Road, Sun Lou Street, Sun Lou Town, Fengxian County, Xuzhou City, Jiangsu Province Applicant after: XUZHOU DEGAO ELECTRIC VEHICLE TECHNOLOGY CO., LTD. Address before: 041000 2-401, 26 building, West Lake East District, 9 Yaodu East Street, Yaodu, Linfen. Applicant before: Hu Manhang |
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