CN106704443A - Novel electric vehicle damper assembly - Google Patents
Novel electric vehicle damper assembly Download PDFInfo
- Publication number
- CN106704443A CN106704443A CN201611222901.0A CN201611222901A CN106704443A CN 106704443 A CN106704443 A CN 106704443A CN 201611222901 A CN201611222901 A CN 201611222901A CN 106704443 A CN106704443 A CN 106704443A
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- China
- Prior art keywords
- piston
- guide
- damping
- buffer
- centre pilot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000006835 compression Effects 0.000 claims abstract description 61
- 238000007906 compression Methods 0.000 claims abstract description 61
- 238000013016 damping Methods 0.000 claims description 56
- 125000006850 spacer group Chemical group 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 24
- 238000004146 energy storage Methods 0.000 claims description 23
- 238000003860 storage Methods 0.000 claims description 23
- 239000000428 dust Substances 0.000 claims description 19
- 229920001971 elastomer Polymers 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 16
- 239000000446 fuel Substances 0.000 claims description 15
- 239000000314 lubricant Substances 0.000 claims description 14
- 239000013536 elastomeric material Substances 0.000 claims description 12
- 230000003139 buffering effect Effects 0.000 claims description 9
- 239000000806 elastomer Substances 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 5
- 229920000459 Nitrile rubber Polymers 0.000 claims description 3
- 125000003011 styrenyl group Chemical class [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 claims 1
- 238000009776 industrial production Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 49
- 230000000694 effects Effects 0.000 description 24
- 238000013461 design Methods 0.000 description 15
- 239000010687 lubricating oil Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 238000005461 lubrication Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 239000006096 absorbing agent Substances 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 150000003440 styrenes Chemical class 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical group C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Classifications
-
- 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
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses an electric vehicle damper assembly. The assembly comprises a buffer shell provided with a piston guiding cavity; a central guide shaft is slideably mounted in the piston guide cavity; a guide barrel is disposed in the piston guide cavity; a positioning pin is arranged between the guide barrel and the buffer shell; a guide piston is arranged on a piston of the central guide shaft; the guide piston is slideably mounted in the guide barrel; a reset spring is disposed in the guide barrel; a piston compression cavity is disposed in the buffer shell; the end, extending into the buffer shell, of the central guide shaft is provided with a compression piston; an air energy accumulating cavity is disposed in the buffer shell and communicates with the piston compression cavity and also communicates with an air outlet channel disposed in the buffer shell; and the buffer shell is provided with the extending-out end, a buffer pad is disposed between a hinged sleeve and the extending-out end, and a compression spring is disposed between the hinged sleeve and the buffer shell. The damper assembly has the good application prospects and industrial production potential, and also has the good popularization value.
Description
Technical field
The present invention relates to a kind of damper, more particularly to a kind of new damping of electric vehicles device assembly belongs to damping
Device technical field.
Background technology
In the automotive industry, in order that vehicle frame is decayed rapidly with the vibration of vehicle body, improve electric motor car traveling ride comfort and
Comfortableness, damper is typically equipped with the suspension system of electric motor car.Damper is the rapid wear accessory during electric motor car use,
And quality, the quality of performance of its working condition, the stationarity of electric motor car traveling and the life-span of other parts will be directly affected.Base
In so consideration, damper should be made often in good working order.
The operation principle of damper is concussion when being rebounded after suppressing spring shock-absorbing and the impact from road surface, is used for
Contend with the twisting vibration (i.e. the impulsive force of bent axle subject cylinder igniting and the phenomenon that twists) of bent axle.In suspension systems, due to bullet
Property element be hit generation vibration, for improve electric motor car ride performance, be installed in parallel damper with flexible member in suspension, from
And the vibration that decayed.
Additionally, some dampers are in order to increase its steering capability, all using centre pilot axle, it is used to increase the steady of its operation
It is qualitative.But, the friction between centre pilot axle and housing is larger, although on the one hand absorb partial vibration energy, but another
Aspect damping effect is undesirable, once centre pilot axle forms rigid contact with housing, will transfer vibrations on housing,
So as to cause damping effect poor.
At present, people have carried out substantial amounts of further investigation to damping of electric vehicles device, and achieve some achievements, for example：
CN202402539U discloses a kind of special permanent-magnet suspended damper of electric automobile, and it includes connection pillar and outer
Dust cover, connection pillar and the connection of outer dust cover, are provided with damping tappet and cylinder body, damping tappet difference in the outer dust cover
It is connected with outer dust cover and damping, damping is connected with suspension end magnet, and cylinder body is connected with fixing end main magnet.By using permanent magnetism
Repulsion between the magnetic strength phenomenon and permanent magnet of body achieves the goal, with good nonlinear stiffness characteristic, and with making
The advantages of with long lifespan, less demanding technology implementation, noiseless.
CN104141724A discloses the rear shock absorber band main assemblage of spring that a kind of electric automobile changes performance force value, and it includes
Rear shock absorber with lower spring cup, and the rear dust cover that rear shock absorber is provided with, rear dust cover outer end is provided with spring
Seat, is provided with isolation cushion on spring inside described upper spring seat, between isolation cushion and lower spring cup, be provided with described spring
The rear coil springs on rear dust cover and rear shock absorber are socketed in, the pitch size of described rear coil springs is differed.It has
Beneficial effect is the ride comfort and comfortableness before and after loading capacity increases during electric automobile during traveling, has before contrast and changes greatly very much
See, effect is preferable.
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 the first connecting plate lower surface
Connection, the rubber parts other end is connected with the second connecting plate upper surface, and the first connecting plate upper surface is provided with first
Stud, the second connecting plate lower surface is provided with the second stud.The simple structure of the damper, rubber parts can use simple shape
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 connect automobile support and distance increasing unit, and the vibrations that distance increasing unit sends are lost when by rubber parts, subtracted
The vertical tremor of car body substantially, and will not be delivered to distance increasing unit by shake noise reduction and other effects.
As described above, disclosing various dampers in the prior art, but for new damper, still suffer from continuing 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
Leaned on basis where the power that exactly present invention is accomplished.
The content of the invention
For the damper of development of new, the present inventor has made intensive studies to this, is paying a large amount of creative labor
After dynamic, so as to complete the present invention.
Specifically, the technical problems to be solved by the invention are：A kind of new damping of electric vehicles device assembly is provided, its
Many advantages, such as with effectively improving damping effect, being easy to part exchanging, reduction maintenance cost, with good industrialization promotion
Value and application potential.
In order to solve the above technical problems, the technical scheme is that：A kind of damping of electric vehicles device assembly is provided, it is described to subtract
Shake device assembly includes the buffer housing being connected to by cushion collar on car body, and the buffer housing has piston guide chamber,
Centre pilot axle is slidably fitted with the piston guide chamber, one end that the centre pilot shaft extension goes out the buffer housing leads to
Cross hinged set and connect electronic suspension, guide cylinder, the guide cylinder and the buffer housing are provided with the piston guide chamber
Between be provided with alignment pin, the piston of the centre pilot axle is provided with guide piston, and the guide piston is slidably mounted on described
In guide cylinder, back-moving spring is provided with the guide cylinder, described back-moving spring one end is relied on the guide piston, the other end
Rely in the buffer housing, the piston compression chamber in the piston guide chamber, institute are communicated with the buffer case body
State one end that centre pilot shaft extension enters in the buffer case body and be provided with compression piston, the compression piston is slidably mounted on described
In piston compression chamber, the first inlet channel of ambient atmosphere and the piston compression chamber is communicated with the buffer case body,
The first breather check valve is provided with first inlet channel, a gas energy storage chamber, the gas are set in the buffer case body
Energy storage chamber connects the piston compression chamber by the second inlet channel, is provided with the second air inlet in second inlet channel unidirectional
Valve, the gas energy storage chamber connection is arranged at the outlet passageway in the buffer case body；
The buffer housing has an external part extended to the hinged set, and the centre pilot axle is through described
External part；
Cushion pad, the centre pilot shaft extension are provided between the hinged set and the external part of the buffer housing
The cushion pad is run through in the part for going out the buffer housing；
Compression spring is provided between the hinged set and the buffer housing, the centre pilot axle runs through the compression
Spring, and the compression spring is located at the outside of the cushion pad.
The damping of electric vehicles device assembly of the invention, by structure design so, so that working as the hinged set
When being impacted, centre pilot axle retraction compresses the back-moving spring, eliminates partial vibration, and with described
The retraction of the heart axis of guide, the compression piston compresses the piston compression chamber internal cavity so that these compressed airs are by described
Second breather check valve enters the gas energy storage chamber, stores energy, and the process also improves damping effect simultaneously；
And, the compression spring can secondary buffer serve cushioning effect, so as to reduce during buffer damping moisten
The oil pressure of lubricating oil, reduces the pressure oscillation of oil lubrication system；
More and；The cushion pad can stop that the debris such as dust are attached on the centre pilot axle, advantageously protect
The potted components 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 pad 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 is when not in use, it is also possible to blocked using blocking.
In the damping of electric vehicles device assembly of the invention, as a kind of perferred technical scheme, in order to further carry
Buffering and damping effect high, the cushion collar and the hinged set are made of elastomeric material.
Wherein, the common used material that the elastomeric material right and wrong are usually advised, for example, can be 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 provided with gas-permeable channels, and the guide cylinder is provided with air-vent, and the air-vent connects the gas-permeable channels, the air-vent
Positioned at the guide cylinder away from the guide piston one end.
By structure design so, can cause to connect extraneous big between the guide piston and the buffer housing
Gas, it is to avoid the guide piston produces back pressure when retracting, so as to reducing energy loss.
In the damping of electric vehicles device assembly of the invention, as a kind of perferred technical scheme, the buffer case
Oil storage tank is provided with vivo, and the oil storage tank is located at the outside of the guide cylinder, away from the back-moving spring on the guide cylinder
One end is provided with fuel feed hole, and the fuel feed hole connects 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
Air supply channel is provided with vivo, and the air supply channel connects the oil storage tank and the gas energy storage chamber, set in the air supply channel
Have and limit the supply check valve that gas is flowed to the oil storage tank by the gas energy storage chamber.
By structure design so, using the gas energy in the gas energy storage chamber, by the oil storage tank
Lubricating oil pumps into the piston guide chamber, the lubrication guide piston and the centre pilot axle by the fuel feed hole.And
The alignment pin is served to be prevented the guide cylinder from being rotated in motion process and causes the fuel feed hole to misplace, described to ensure
The fuel feed hole on guide cylinder can connect the piston guide chamber and the oil storage tank all the time, 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 in 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 axle, the one end in the buffer housing near the front seal is provided with the first drainback passage, described first
Drainback passage connects 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
Oil sealing is 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
Elastomeric material or macromolecular elastomer material are with the rear seal.
Wherein, the common used material that the elastomeric material and macromolecular material right and wrong are usually advised, for example, can be various conjunctions
Into elastomeric material or macromolecular elastomer material (such as styrene analog thermoplastic elastomer material etc.), no longer carry out herein in detail
Description.
By structure design so, the centre pilot axle 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 being elastomeric material or macromolecular elastomer material
Material, such that it is able to buffer the vibration of the centre pilot axle, it is to avoid the buffer housing is rushed by the centre pilot axle
Hit and vibrate aggravation.
In the damping of electric vehicles device assembly of the invention, as a kind of perferred technical scheme, the external part
End is fixed with a dust cap, and oil sealing is provided with the external part, and the oil sealing is leant with the dust cap, and the center is led
Run through the oil sealing and the dust cap to axle.
By structure design so, the centre pilot axle and the external part are spaced using the oil sealing, can
To buffer the vibration of the centre pilot axle, it is to avoid the buffer housing is subject to the impact of the centre pilot axle and vibrates and add
Play, further increases buffering effect.
In the damping of electric vehicles device assembly of the invention, as a kind of perferred technical scheme, in the external part
A spacer is provided with, the spacer is set in the outside of the centre pilot axle, and the end of the spacer relies on the oil sealing
On, lubricant reservoir is provided between the spacer and the external part, the lubricant reservoir connects described by the second oil inlet passage
Oil storage tank, the lubricant reservoir is provided with the second drainback passage near one end of the oil sealing, and second drainback passage connects institute
The first drainback passage is stated, the spacer is provided with some through holes.
By structure design so, can cause that the lubricating oil in the lubricant reservoir enters in the spacer, lubrication
The centre pilot axle, further increases lubricant effect, it is to avoid the jam phenomenon when centre pilot axle runs.
In the damping of electric vehicles device assembly of the invention, as a kind of perferred technical scheme, in the external part
A guide pad is provided with, the guide pad is fixed on the inwall of the spacer, is provided with the guide pad and is led with the center
The pilot hole being adapted to axle.
By structure design so, on the one hand, the guide pad serves supporting role, the strong of the spacer is improve
Degree；On the other hand, the guide pad serves guide effect.It is well known that the centre pilot axle extension elongation is more long, it is disturbed
Degree deformation is bigger, can cause centre pilot axle off-axis in telescopic process, so as to cause the infringement to potted component,
The service life of potted component is reduced, and the guide pad reduces institute then into a fulcrum of the centre pilot axle
The deflection deformation of centre pilot axle is stated, and then extends the service life of damper of the present invention.
In the damping of electric vehicles device assembly of the invention, as a kind of situation, in the hinged set and the buffering
Can also be without setting the compression spring between device housing, now damping effect is in a slight decrease nothing but, and lubricating oil oil pressure
All increases.It is further improvement and improvement to set the compression spring.
But it is preferably provided with the compression spring, and still more preferably, for the set-up mode of the compression spring,
The applicant is also further studied improvement, so as to devise a kind of compression spring set-up mode of novelty, tool
Body is：As a kind of perferred technical scheme, the specific set-up mode of the compression spring is as follows：Fixed peace in the hinged set
Equipped with the first spring base, second spring seat is installed with the buffer housing, the second spring cover for seat is loaded on described
External part, the compression spring is clamped between first spring base and second spring seat.
As described above, the invention provides a kind of damping of electric vehicles device assembly, the damping of electric vehicles device assembly is by only
Special structure design and mutual cooperation, so as to achieve many Advantageous Effects, for example：
1st, due to being provided with the back-moving spring and gas energy storage chamber that are associated with centre pilot axle, when hinged set is impacted
When, centre pilot axle retraction, compression reseting spring eliminates partial vibration, and with the retraction of centre pilot axle, compression piston
Air in compression piston compression chamber so that these compressed airs enter gas energy storage chamber, storage by the second breather check valve
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 easy, it is only necessary to which the inwall for being directed to cylinder is finished, in use, guide cylinder abrasion
After can be individually replaced guide cylinder, without whole buffer housing is replaced, maintenance cost is greatly reduced, with fine
Use value.
2nd, because buffer housing is provided with gas-permeable channels, can cause to connect outer between guide piston and buffer housing
Boundary's air, it is to avoid guide piston produces back pressure when retracting, and reduces energy loss, improves gas energy storage efficiency.
3 and due to being provided with alignment pin between guide cylinder and buffer housing, alignment pin is served prevents guide cylinder in motion
During rotate and cause fuel feed hole to misplace, to ensure that the fuel feed hole on guide cylinder can connect piston guide chamber and oil storage all the time
Groove.
4th, because the rear and front end in piston guide chamber is respectively equipped with front seal and rear seal, by centre pilot axle with it is slow
Device housing is rushed to separate by front seal and rear seal, and front seal and rear seal all use elastomeric material, can be with
Buffer the vibration of centre pilot axle, it is to avoid buffer housing receives the impact of centre pilot axle and vibrates aggravation.
5th, due to being provided with a guide pad in external part, guide pad is fixed on the inwall of spacer, be provided with guide pad with
The pilot hole that centre pilot axle is adapted, on the one hand, guide pad serves supporting role, improves the intensity of spacer, the opposing party
Face, guide pad serves guide effect.
6th, due to being provided with cushion pad between hinged set and buffer housing, cushion pad is set in centre pilot shaft extension and goes out buffering
The part of device housing, one side cushion pad can stop that dust is attached on centre pilot axle, be effectively protected in buffer
The potted component of oil sealing, rubber ring etc., extends the service life of damper of the present invention, on the other hand, when the center axis of guide is returned
During contracting, separate hinged set and buffer housing, reduce impulsive force.
7th, due to being provided with compression spring between hinged set and buffer housing, secondary buffer serves cushioning effect, from
And when reducing buffer damping lubricating oil oil pressure, reduce the pressure oscillation of oil lubrication system.
8th, the power of lubricating oil system is provided by gas energy storage chamber, it is also possible to supply and discharge to other oil sites, by impulsive force,
Save lubricating power, it is not necessary to frequently enable grease pump and be capable of achieving lubrication, have very important significance.
As described above, the invention provides a kind of damping of electric vehicles device assembly, the damping of electric vehicles device assembly is by only
Special structure design and mutual cooperation, so as to achieve many Advantageous Effects, have good answering in auto industry field
With prospect and industrial production potential, it may have good promotional value.
Brief description of the drawings
Fig. 1 is the structural representation 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 Fig. 1 to Fig. 3, each number designation refers to following concrete meaning, element and/or part respectively.
In figure：1st, hinged set, 2, alignment 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, supply
Passage, 408, gas-permeable channels, 409, gas energy storage chamber, the 410, first drainback passage, the 411, second drainback passage, 5, centre pilot
Axle, 501, guide piston, 502, compression piston, 6, guide cylinder, 601, air-vent, 602, fuel feed hole, 7, back-moving spring, 8, buffering
Pad, 9, external part, 901, dust cap, 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, supply check valve, 15, front seal, 16, rear sealing
Part, 17, spacer, 18, cushion collar.
It should be noted that these accompanying drawings are only the description to preferred embodiment of the present invention, other non-optimum are not meant to
Mode is selected, such as usual manner can not realize the present invention.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples.But the purposes and mesh of these exemplary embodiments
Only be used for enumerate the preferred embodiment of the present invention, not to real protection scope of the invention constitute it is any type of any
Limit, it is more non-that protection scope of the present invention is confined to this.
Jointly shown with Fig. 3 as shown in Figure 1, Figure 2, the invention provides a kind of damping of electric vehicles device assembly, it is included by slow
Punching set 18 is connected to the buffer housing 4 on car body, and buffer housing 4 has piston guide chamber 401, in piston guide chamber 401
Centre pilot axle 5 is slidably fitted with, one end of the projection buffer housing 4 of centre pilot axle 5 connects electric motor car and hangs by hinged set 1
Frame；Here, in order to further improve buffering and damping effect, cushion collar 18 and hinged set 1 are made of elastomeric material；Piston is led
To guide cylinder 6 is provided with chamber 401, alignment pin 2 is provided between guide cylinder 6 and buffer housing 4, on the piston of centre pilot axle 5
Guide piston 501 is provided with, guide piston 501 is slidably mounted in guide cylinder 6, back-moving spring 7, reset bullet are provided with guide cylinder 6
The one end of spring 7 is relied on guide piston 501, and the other end is relied in buffer housing 4, is communicated with living in buffer housing 4
The piston compression chamber 402 of directed cavity 401 is filled in, one end that centre pilot axle 5 is stretched into buffer housing 4 is provided with compression piston 502,
Compression piston 502 is slidably mounted in piston compression chamber 402, and ambient atmosphere and piston compression are communicated with buffer housing 4
First inlet channel 403 in chamber 402, is provided with the first breather check valve 12, buffer housing 4 in the first inlet channel 403 and sets
One gas energy storage chamber 409, gas energy storage chamber 409 connects piston compression chamber 402 by the second inlet channel 406, and the second air inlet is led to
The second breather check valve 13 is provided with road 406, gas energy storage chamber 409 connects the outlet passageway being arranged in buffer housing 4
405；
The buffer housing 4 has an external part 9 extended to hinged set 1, and centre pilot axle 5 runs through external part 9；
Cushion pad 8 is provided between the external part 9 of the hinged set 1 and buffer housing 4, centre pilot axle 5 stretches out buffering
Cushion pad 8 is run through in the part of device housing 4；
Compression spring 11 is provided between the hinged set 1 and buffer housing 4, centre pilot axle 5 runs through compression spring 11,
And compression spring 11 is located at the outside of cushion pad 8.
By structure design so, so that when the hinged set 1 is impacted, the centre pilot axle 5 times
Contracting, compresses the back-moving spring 11, eliminates partial vibration, and with the retraction of the centre pilot axle 5, the compression is lived
402 cavity in the compression of the plug 502 piston compression chamber so that these compressed airs are entered by second breather check valve 13
Enter the gas energy storage chamber 409, store energy, and the process also improves damping effect simultaneously；
And, the compression spring 11 can secondary buffer serve cushioning effect, so as to reduce during buffer damping
The oil pressure of lubricating oil, reduces the pressure oscillation of oil lubrication system；
More and, the cushion pad 8 can stop that the debris such as dust are attached on centre pilot axle 5, advantageously protect
The potted components such as oil sealing, rubber ring, extend the service life of damper of the present invention.
The cushion pad 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 using, it is also possible to be blocked using blocking.
When hinged set 1 is impacted, centre pilot axle 5 bounces back, compression reseting spring 7, eliminates partial vibration, and as center is led
To the retraction of axle 5, the internal cavity of 502 compression piston compression chamber of compression piston 402 so that these compressed airs pass through the second air inlet list
Enter gas energy storage chamber 409 to valve 13, store energy, and the process also improves damping effect simultaneously.
The buffer housing 4 is provided with gas-permeable channels 408, and guide cylinder 6 is provided with air-vent 601, and air-vent 601 is connected
Gas-permeable channels 408, air-vent 601 is located at the one end of guide cylinder 6 away from guide piston 501.
By structure design so, can cause to connect ambient atmosphere between guide piston 501 and buffer housing 4,
Back pressure is produced when avoiding guide piston 501 from retracting, energy loss is reduced.
Oil storage tank 404 is provided with the buffer housing 4, oil storage tank 404 is located at the outside of guide cylinder 6, remote on guide cylinder 6
Fuel feed hole 602, the connection oil storage tank 404 of fuel feed hole 602 and piston guide chamber 401 are provided with from one end of back-moving spring 7.
Air supply channel 407, air supply channel 407 connection oil storage tank 404 and gas energy storage chamber are provided with the buffer housing 4
409, it is provided with air supply channel 407 and limits the supply check valve 14 that gas is flowed to oil storage tank 404 by gas energy storage chamber 409.
By structure design so, using the gas energy in gas energy storage chamber 409, by the profit in oil storage tank 404
Lubricating oil pumps into piston guide chamber 401, lubrication guide piston 501 and centre pilot axle 5 by fuel feed hole 602.And alignment pin 2
Fuel feed hole 602 is caused to misplace to preventing guide cylinder 6 from being rotated in motion process, to ensure the fuel feed hole 602 on guide cylinder 6
All the time piston guide chamber 401 and oil storage tank 404 can be connected, positioning action is played.
The rear and front end in the piston guide chamber 401 is respectively equipped with front seal 15 and rear seal 16, front seal 15
Oil sealing is preferably herein with rear seal 16, and front seal 15 and rear seal 16 are set on centre pilot axle 5, by center
The axis of guide 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 elastomeric material, can buffer the vibration of centre pilot axle 5, it is to avoid buffer housing 4 is subject to rushing for centre pilot axle 5
Hit and vibrate aggravation, the first drainback passage 410 is provided near one end of front seal 15 in buffer housing 4, the first oil return is led to
The connection piston guide chamber of road 410 401.
The end of the external part 9 is fixed with a dust cap 901, is provided with oil sealing 902 in external part 9, oil sealing 902 with it is dust-proof
Lid 901 leans, and centre pilot axle 5 runs through oil sealing 902 and dust cap 901
By structure design so, centre pilot axle 5 is spaced with external part 9 using oil sealing 902, in can buffering
The vibration of the heart axis of guide 5, it is to avoid buffer housing 4 is subject to the impact of centre pilot axle 5 and vibrates aggravation, further increases slow
Rush effect.
Be provided with a spacer 17 in the external part 9, spacer 17 is set in the outside of centre pilot axle 5, and spacer 17 end
Portion is relied on oil sealing 902, and lubricant reservoir 904 is provided between spacer 17 and external part 9, and lubricant reservoir 904 passes through the second oil-feed
Channel connection oil storage tank 404, lubricant reservoir 904 is provided with the second drainback passage 411 near one end of oil sealing 902, and the second oil return is led to
Road 411 connects the first drainback passage 410, and spacer 17 is provided with some through holes, can cause that the lubricating oil in lubricant reservoir 904 enters
Enter in spacer 17, lubrication centre pilot axle 5 further increases lubricant effect, it is to avoid jam when centre pilot axle 5 runs
Phenomenon.
A guide pad 903 is provided with the external part 9, guide pad 903 is fixed on the inwall of spacer 17, guide pad 903
On be provided with the pilot hole being adapted with centre pilot axle 5.
By structure design so, on the one hand, guide pad 903 serves supporting role, the intensity of spacer 17 is improve；
On the other hand, guide pad 903 serves guide effect, it is well known that the extension elongation of centre pilot axle 5 is more long, the deformation of its degree of disturbing
It is bigger, the off-axis in telescopic process of centre pilot axle 5 can be caused, so as to cause the infringement to potted component, reduce close
The service life of element is sealed, and guide pad 903 reduces scratching for centre pilot axle 5 then into a fulcrum of centre pilot axle 5
Degree deformation, and then extend the service life of damper of the present invention.
The compression spring 11 is in addition to above-mentioned method to set up, it is highly preferred that the specific set-up mode of compression spring 11
It is as follows：The first spring base 3 is installed with hinged set 1, second spring seat 10, second are installed with buffer housing 4
Spring base 10 is set in external part 9, and compression spring 11 is clamped between the first spring base 3 and second spring seat 10.
The secondary buffer of the compression spring 11 serves cushioning effect, lubricating oil during so as to reducing buffer damping
Oil pressure, reduces the pressure oscillation of oil lubrication system.
As described above, the invention provides a kind of damping of electric vehicles device, the damping of electric vehicles device is by unique structure
Design and cooperate, so as 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
Enclose.Additionally, it will also be appreciated that after technology contents of the invention have been read, those skilled in the art can make each to the present invention
Plant and change, change and/or modification, all these equivalent form of value equally falls within the guarantor that the application appended claims are limited
Within the scope of shield.
Claims (10)
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 has piston guide chamber, and being slidably fitted with center in the piston guide chamber leads
To axle, one end that the centre pilot shaft extension goes out the buffer housing connects electronic suspension, the piston by hinged set
Guide cylinder is provided with directed cavity, alignment pin is provided between the guide cylinder and the buffer housing, the centre pilot axle
Piston is provided with guide piston, and the guide piston is slidably mounted in the guide cylinder, and reset bullet is provided with the guide cylinder
Spring, described back-moving spring one end is relied on the guide piston, and the other end is relied in the buffer housing, the buffering
The piston compression chamber in the piston guide chamber is communicated with device housing, the centre pilot shaft extension enters in the buffer case body
One end be provided with compression piston, the compression piston is slidably mounted in the piston compression chamber, is set in the buffer case body
There is the first inlet channel of connection ambient atmosphere and the piston compression chamber, the first air inlet list is provided with first inlet channel
To valve, a gas energy storage chamber is set in the buffer case body, the gas energy storage chamber connects the work by the second inlet channel
Plug compression chamber, is provided with the second breather check valve in second inlet channel, the gas energy storage chamber connection is arranged at described slow
The outlet passageway rushed in device housing；
The buffer housing has an external part extended to the hinged set, and the centre pilot axle stretches out through described
End；
Cushion pad is provided between the hinged set and the external part of the buffer housing, the centre pilot shaft extension goes out institute
The cushion pad is run through in the part for stating buffer housing；
Compression spring is provided between the hinged set and the buffer housing, the centre pilot axle runs through the compression bullet
Spring, and the compression spring is located at the outside of the cushion pad.
2. damping of electric vehicles device assembly as claimed in claim 1, it is characterised in that：The cushion pad can be various rubber-like materials
Material or macromolecular elastomer material, preferably nitrile rubber or styrene analog thermoplastic elastomer material.
3. the damping of electric vehicles device assembly as described in claim any one of 1-2, it is characterised in that：The cushion collar and the hinge
Female connector is made of elastomeric material.
4. the damping of electric vehicles device assembly as described in claim any one of 1-3, it is characterised in that：Set in the buffer housing
There are gas-permeable channels, the guide cylinder is provided with air-vent, and the air-vent connects the gas-permeable channels, and the air-vent is located at institute
State the one end of guide cylinder away from the guide piston.
5. the damping of electric vehicles device assembly as described in claim any one of 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 the one end on the guide cylinder away from the back-moving spring sets
There is fuel feed hole, the fuel feed hole connects the oil storage tank and the piston guide chamber.
6. the damping of electric vehicles device assembly as described in claim any one of 1-5, it is characterised in that：Before the piston guide chamber
After be respectively arranged at two ends with front seal and rear seal, the front seal and the rear seal are set in the center and lead
To on axle, the first drainback passage is provided near one end of the front seal in the buffer housing, first oil return is led to
Road connects the piston guide chamber.
7. damping of electric vehicles device assembly as claimed in claim 6, it is characterised in that：The front seal and the rear seal
It is elastomeric material or macromolecular elastomer material.
8. the damping of electric vehicles device assembly as described in claim any one of 1-7, it is characterised in that：The end of the external part is consolidated
Surely there is a dust cap, oil sealing is provided with the external part, the oil sealing leans with the dust cap, the centre pilot axle is passed through
Wear the oil sealing and the dust cap.
9. the damping of electric vehicles device assembly as described in claim any one of 1-8, it is characterised in that：One is provided with the external part
Spacer, the spacer is set in the outside of the centre pilot axle, and the end of the spacer is relied on the oil sealing, described
Lubricant reservoir is provided between spacer and the external part, the lubricant reservoir connects the oil storage tank by the second oil inlet passage,
The lubricant reservoir is provided with the second drainback passage near one end of the oil sealing, and the second drainback passage connection is described first time
Oily passage, the spacer is provided with some through holes.
10. the damping of electric vehicles device assembly as described in claim any one of 1-9, it is characterised in that：It is provided with the external part
One guide pad, the guide pad is fixed on the inwall of the spacer, is provided with the guide pad and the centre pilot axle
The pilot hole being adapted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611222901.0A CN106704443B (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 |
|---|---|---|---|
| CN201611222901.0A CN106704443B (en) | 2016-12-27 | 2016-12-27 | A kind of damping of electric vehicles device assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106704443A true CN106704443A (en) | 2017-05-24 |
| CN106704443B CN106704443B (en) | 2018-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611222901.0A Expired - Fee Related CN106704443B (en) | 2016-12-27 | 2016-12-27 | A kind of damping of electric vehicles device assembly |
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| Country | Link |
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| CN (1) | CN106704443B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1391331A2 (en) * | 2002-08-20 | 2004-02-25 | Liebherr-Aerospace Lindenberg GmbH | Hydropneumatic spring element with integrated leveling sensor or valve, for railway vehicle |
| EP1469226A2 (en) * | 2003-04-15 | 2004-10-20 | SUSPA Holding GmbH | Lengthwise adjustable gas spring |
| CN102720795A (en) * | 2012-06-12 | 2012-10-10 | 江苏科技大学 | Hydro-pneumatic spring for amphibious vehicles and hydraulic regulating device for hydro-pneumatic spring for amphibious vehicle |
| CN204025494U (en) * | 2014-09-02 | 2014-12-17 | 烟台中宇航空液压有限公司 | A kind of hydro-pneumatic spring cylinder |
| CN105605144A (en) * | 2016-02-28 | 2016-05-25 | 瑞安市万业电器有限公司 | Dustproof air-bag shock absorber for cars |
-
2016
- 2016-12-27 CN CN201611222901.0A patent/CN106704443B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1391331A2 (en) * | 2002-08-20 | 2004-02-25 | Liebherr-Aerospace Lindenberg GmbH | Hydropneumatic spring element with integrated leveling sensor or valve, for railway vehicle |
| EP1469226A2 (en) * | 2003-04-15 | 2004-10-20 | SUSPA Holding GmbH | Lengthwise adjustable gas spring |
| CN102720795A (en) * | 2012-06-12 | 2012-10-10 | 江苏科技大学 | Hydro-pneumatic spring for amphibious vehicles and hydraulic regulating device for hydro-pneumatic spring for amphibious vehicle |
| CN204025494U (en) * | 2014-09-02 | 2014-12-17 | 烟台中宇航空液压有限公司 | A kind of hydro-pneumatic spring cylinder |
| CN105605144A (en) * | 2016-02-28 | 2016-05-25 | 瑞安市万业电器有限公司 | Dustproof air-bag shock absorber for cars |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106704443B (en) | 2018-10-30 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20180918 Address after: 221200 1, building 1-102, Dongsheng garden, Dongsheng Street, Sui Town, Suining, Jiangsu Applicant after: Xuzhou 100 mi Trading 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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Granted publication date: 20181030 Termination date: 20181227 |