A kind of automobile absorber
Technical field
The present invention relates to a kind of amortisseur, more particularly relates to a kind of automobile absorber, belong to mechanical damper technical field.
Background technology
In the automotive industry, in order to improve comfortableness, need to make vehicle frame decay rapidly with the vibration of vehicle body, so as to improve vapour
The ride comfort and comfortableness of car traveling.And effect so and purpose are realized, it is typically equipped with subtracting on automobile suspension system
Shake device.
The operation principle of amortisseur be for suppressing spring shock-absorbing after rebound when concussion and the impact from road surface, for
Contend with twisting vibration (i.e. the impulsive force of bent axle subject cylinder igniting and the phenomenon that twists) of bent axle etc., is not so affecting automobile total
On the premise of body performance, good damping effect is realized, be the important research content in the amortisseur field in auto industry.
At present, it is big so as to obtain in the automotive industry for the research of automobile absorber has been achieved for many achievements
The application of scale.On the basis of the various amortisseurs for being used at present, people have still carried out more deeply grinding to amortisseur
Study carefully, the further development for automobile absorber provides good technological reserve.For example:
CN104343883A discloses a kind of automobile absorber, including the cylinder body with piston rod, the main work in cylinder body
Plug and auxiliary piston, described main piston is fixed on piston rod one end, and on described main piston and auxiliary piston oil leak hole is provided with,
The two ends of described cylinder body are provided with damping device, and described auxiliary piston is connected on main piston by spring, described master
Buffering ball is provided between piston and auxiliary piston, described cylinder body is provided with oil filler point, to the shock of cylinder body end face when it is used
Power is little, and cylinder body is difficult to be destroyed.
CN104806684A discloses a kind of automobile damper structure, including cylinder body, and inner wall surface thereof is into smooth knot
Structure, is provided with piston in cylinder body, internal piston is inserted with push rod, and positioned at cylinder body afterbody triplex cap is provided with, itself and push rod it
Between the first spring is installed, triplex cap into terraced structure, at the step surface of triplex cap and outside piston side face between pacify
Swash pipe equipped with shaking, the outer circumference surface of sharp pipe that shakes is fitted with the internal face of cylinder body;Piston rod is also equipped with cylinder body, it passes through star
Circle is provided with energy-absorbing piston, and the second cylinder cap is installed between its left side and piston rod head, and its outer circumference surface is formed with step, the
The step surface of two cylinder cap and shake positioning sleeve is installed between sharp end surfaces, its outer circumference surface is fitted with the internal face of cylinder body, positioning
Gap is left between the inner peripheral surface and outside piston side face of set;Cylinder cap is installed on the piston rod at cylinder head, is inhaled
Second spring can be installed between piston right-hand member and cylinder cap.It is easy to process, low cost.
CN105134857A discloses a kind of stabilization type automobile absorber, including cylinder body, piston rod, is provided with cylinder body and fills out
Topping up body, is additionally provided with stabilization shell on the outside of cylinder body, and on the inwall of stabilization shell cavity is provided with, and stabilization is provided with cavity
Spring, on the outside of stabilization spring contiguous block is provided with, and the locating piece being engaged with contiguous block is provided with the outer wall of cylinder body, in cylinder
Fine motion extension spring is provided between the bottom of body and the bottom of stabilization shell, one end of fine motion extension spring is fixed on the bottom of cylinder body, another
End is fixed on the bottom of stabilization shell, is additionally provided with the closure being engaged with stabilization shell, is provided with stabilization in stabilization inside the shell and delays
Liquid is rushed, in the bottom outside of cylinder body horizontal supports block is fixed with, in horizontal supports block throttle orifice is uniformly provided with.The amortisseur
It is simple structure, convenient to use, improve the stability in use of amortisseur and use effectiveness, cost of manufacture is reduced, carry
High packaging efficiency, the suitability is good, practical.
CN1052002097A discloses a kind of automobile absorber structure, including rubber support, sealing member, operating room, interior
Pipe, piston, piston rod, outer tube, protection pipe, accumulator and bottom valve;The outer tube is provided with protection pipe, and the protection
Inner tube is installed inside pipe;Said inner tube is internally provided with operating room;The outer tube top is provided with rubber support, and described
Piston rod is installed inside rubber support, and described piston rod one end is installed on internal tube;The piston rod surface is installed
There are sealing member, and the embedded internal piston in described piston rod one end;The piston side is provided with the bottom valve positioned at interior tube side wall;
Accumulator is provided between said inner tube and protection pipe;Compared with prior art, the automobile absorber structure can play drop
The vibrating effect of low vehicle, service life long, is comfortable on occupant.
CN105240440A discloses the rod set being arranged outside a kind of automobile absorber, including decoupling rod, decoupling rod bottom side,
Described rod set is set in damping club body lower outside, and decoupling rod is slidably matched with rod set, and rod set axle center is provided with cooperation damping
The axocoel of bar, the corresponding damping club body of rod set is provided with the annular teeth along the arrangement of decoupling rod length direction, is provided with rod set many
The gear of individual cooperation teeth, gear is circumferentially uniformly distributed along decoupling rod, and the gear cavity of mate gear, axle are provided with corresponding rod set
Chamber, gear cavity are communicated, and axocoel, gear intracavity fill and put viscosity hydraulic oil liquid, decoupling rod bottom for sphere piston structure, piston
Inside configuration is provided with Y type oil ducts, and the corresponding damping club body sheathed spring in rod set top, damping is steady, and resiliency preferably, can
Avoid abrasion, long service life.
CN105370790A discloses a kind of automobile absorber, and the automobile absorber includes:Gripper shoe 1, piston rod 2,
Piston 3, cylinder body 9, the first return spring 4 and permanent magnet 6, the gripper shoe, piston rod and piston are sequentially affixed from top to bottom, forever
Magnet be arranged on cylinder body outer end and with cylinder body Joint, piston 3 is located in the cylinder body, and the gripper shoe is located at the cylinder body
The top of upper surface, and the piston rod upper end, through the top of the cylinder body, first return spring is sleeved on the work
On stopper rod, and one end is connected with the gripper shoe, and the other end is fixed on the top of the cylinder body 8, overcomes damping in prior art
Device is after long-term use, it may appear that damping effect is deteriorated, and the resilience of amortisseur easily fails, the short problem of service life, from
And providing a kind of in lasting good of life-time service process damping effect, amortisseur resilience is strong, and the vapour of long service life
Car amortisseur.
CN104074911A discloses a kind of automobile absorber, including gripper shoe, piston, housing, air bleeding valve, permanent magnet and
Return spring, the gripper shoe is placed in housing top;The piston is placed in the housing, and the piston upper end is provided through
The piston rod that the housing upper is fixedly connected with the gripper shoe;The permanent magnet is fixed and is placed in the housing upper end;It is described
Return spring is sleeved on the piston rod, and the return spring is between gripper shoe and permanent magnet;The air bleeding valve is put
In the top of the housing one side;The top of the housing another side is provided with oil filler point;The lower housing portion is provided with
Oil leak hole.Hinge structure, the amortisseur possesses dual resilience, can in time exclude the polluter in amortisseur,
Ensure the unimpeded of amortisseur valve body, reduce the abrasion inside amortisseur, increase service life.
CN102853024A discloses a kind of automobile absorber, and the automobile absorber includes the first storage oil cylinder, activity
Oil cylinder, First piston bar, first piston and helical spring, first is fixed with First piston bar away from one end of first piston
Spring base, is fixed with second spring seat on the outer wall of movable cylinder;The helical spring is set on movable cylinder;The turning
Include the second storage oil cylinder and second piston bar without governor motion is rolled, the second storage oil cylinder is two, second piston bar
Fourth holes of the two ends respectively from two second storage oil cylinders stretch into the second storage oil cylinder, two second storage oil cylinders are by a company
Extension bar is connected, and the moving parts for moving second piston bar is further fixed in the middle part of second piston bar.The amortisseur can have
Improve the stability manipulated in vehicle traveling process and the comfortableness taken in effect ground;Further, it is possible to prevent automobile in turning process
In inclination.
As described above, various automobile absorbers are disclosed in prior art, but for new automobile absorber is still suffered from
Continue the necessary and demand studied, this not only has urgent researching value, it may have good economic benefit and commercial Application
Potentiality, this power that exactly present invention is accomplished is located and basis is leaned on.
The content of the invention
In order to research and develop new automobile absorber, the present inventor has made intensive studies to this, is paying a large amount of creation
Property work after, so as to complete the present invention.
Specifically, the technical problem to be solved is:A kind of automobile absorber is provided, the amortisseur is by only
Special structure design and cooperate, so as to achieve many beneficial technique effects, have in auto industry field good
Application prospect and industrial production potential.
To solve above-mentioned technical problem, the technical scheme is that:A kind of automobile absorber, the automobile shock are provided
Including the buffer housing of connection suspension, the buffer housing has piston guide chamber, and the piston guide intracavity slides and pacifies
Equipped with centre pilot axle, the centre pilot axle is connected with vehicle transit disk, and the piston guide intracavity is provided with guide cylinder, institute
The piston for stating centre pilot axle is provided with guide piston, and the guide piston is slidably mounted in the guide cylinder, the guiding
Back-moving spring is provided with cylinder, described back-moving spring one end is relied on the guide piston, and the other end relies on the buffer
On housing, the piston compression chamber in the piston guide chamber is communicated with the buffer case body, the centre pilot shaft extension enters
One end in the buffer case body is provided with compression piston, and the compression piston is slidably mounted on the piston compression intracavity, institute
State the first inlet channel that ambient atmosphere and the piston compression chamber are communicated with buffer case body, first inlet channel
The first breather check valve is inside provided with, a gas energy storage chamber is set in the buffer case body, the gas energy storage chamber is entered by second
Piston compression chamber described in gas channel connection, is provided with the second breather check valve, the gas energy storage chamber in second inlet channel
Connection is arranged at the outlet passageway in the buffer case body.
By structure design so, when the vehicle transit disk is impacted, the centre pilot axle retraction, compression
The back-moving spring, so as to eliminate partial vibration;And with the retraction of the centre pilot axle, the compression piston compression
The piston compresses the cavity of intracavity so that these compressed airs enter the gas energy storage by second breather check valve
Chamber, also further increases damping effect.
In the automobile absorber of the present invention, the outlet passageway can connect other lubricating pipes;Or not
When using, it is also possible to blocked using blocking.
In the automobile absorber of the present invention, as a kind of preferred technical scheme, 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.
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, and so as to reduce energy loss, improves damping efficiency and effect.
In the automobile absorber of the present invention, as a kind of preferred technical scheme, 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.
In the automobile absorber of the present invention, as a kind of preferred technical scheme, set in the buffer case body
There is air supply channel, the air supply channel connects the oil storage tank and the gas energy storage chamber, restriction is provided with the air supply channel
Gas is flowed to the supply check valve of the oil storage tank by the gas energy storage chamber.
By structure design so, it is possible to use the energy of the gas energy storage intracavity, by the profit in the oil storage tank
Lubricating oil pumps into the piston guide chamber by the fuel feed hole, lubricates the guide piston and the centre pilot axle, so as to
Lubricating efficiency is improve, without the need for extra energy expenditure.
In the automobile absorber of the present invention, as a kind of preferred technical scheme, 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.
In the automobile absorber of the present invention, as a kind of preferred technical scheme, the front seal and described
Rear seal is preferably oil sealing.
In the automobile absorber of the present invention, as a kind of preferred technical scheme, the front seal and described
Rear seal is elastomeric material or macromolecular elastomer material.
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 and macromolecular elastomer material (such as styrene analog thermoplastic elastomer material etc.), here is no longer carried out in detail
Description.
By structure design so, the front seal and the rear seal delay the centre pilot axle with described
Rush device housing to be spaced, and the front seal and the rear seal are due to for elastomeric material or macromolecular elastomer material
Material, the vibration of the centre pilot axle can be buffered, it is to avoid the buffer housing be subject to the centre pilot axle impact and
Vibration aggravation.
In the automobile absorber of the present invention, used as a kind of preferred technical scheme, the buffer housing has
One external part extended to the vehicle transit disk, the centre pilot axle runs through the external part.
In the automobile absorber of the present invention, used as a kind of preferred technical scheme, 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 dust cap, the centre pilot axle runs through institute
State oil sealing and the dust cap.
By structure design so, the oil sealing is spaced the centre pilot axle and the external part, Ke Yihuan
Rush 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 aggravation,
So as to further increase buffering effect.
In the automobile absorber of the present invention, as a kind of preferred technical scheme, in the external part one is provided with
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 external part, the lubricant reservoir connects the oil storage tank by the second oil inlet passage, described
Lubricant reservoir is provided with the second drainback passage near one end of the oil sealing, and second drainback passage connects first oil return and leads to
Road, the spacer is provided with some through holes.
By structure design so, the lubricating oil in the lubricant reservoir can be caused to enter in the spacer, lubrication
The centre pilot axle, so as to further increase lubricant effect, it is to avoid the jam phenomenon when centre pilot axle runs.
In the automobile absorber of the present invention, as a kind of preferred technical scheme, in the external part one is provided with
Guide pad, the guide pad is fixed on the inwall of the spacer, is provided with the guide pad and the centre pilot axle phase
The pilot hole of adaptation.
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 longer, and 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 amortisseur of the present invention.
In the automobile absorber of the present invention, as a kind of preferred technical scheme, the vehicle transit disk and institute
Dust cover is provided between the external part for stating buffer housing, the part that the centre pilot shaft extension goes out the buffer housing is run through
The dust cover, the two ends of the dust cover are tightly connected respectively with the vehicle transit disk and the external part.
By structure design so, the dust cover can stop that the debris such as dust are attached to the centre pilot axle
On, the potted component of oil sealing, rubber ring etc. is advantageously protected, further extend the service life of amortisseur of the present invention.
Wherein, the dust cover is elastomeric material or macromolecular elastomer material.
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 and macromolecular elastomer material (such as styrene analog thermoplastic elastomer material etc.), here is no longer carried out in detail
Description.
On the one hand the dust cover serves dust-proof, anti-aging effect, on the other hand also acts elastic shock attenuation effect, the
Three aspects, once the oil sealing of external part is damaged, dust cover may also operate as the effect of sealing lubricating oil.
In the automobile absorber of the present invention, the dust cover can be the cover form of conventionally form, as long as can rise
To above-mentioned effect.
But preferably, the present invention is also further studied to dust cover, and unique design has been carried out to its structure, have
Body is as follows:The dust cover has the second of the first fixing end of the connection vehicle transit disk and the connection buffer housing
Fixing end.
It is further preferred that the vehicle transit disk is provided with top rubber cushion, the end of first fixing end is by close
Sealing is sealedly attached on the top rubber cushion, and the centre pilot axle contacts with first fixing end, and described first consolidates
Fixed end is solid construction, and the through hole being adapted with the centre pilot axle is only opened up in the centre pilot shaft position, described
The end of the second fixing end is installed on the external part by sealant sealing.
By structure design so, first fixing end is only opened up and the center in the centre pilot shaft position
The through hole that the axis of guide is adapted, so as to define structure is slidingly sealed, and serves good fixation and elastic buffer is made
With;The end of second fixing end is installed on the external part by sealant sealing, also plays good sealing effect
Really.
It is described to prevent from being located at institute in cover as a kind of preferred technical scheme in the automobile absorber of the present invention
State and compaction cavum be provided between the first fixing end and second fixing end, the centre pilot axle runs through the compaction cavum,
The cavity wall of the compaction cavum is accordion.
By structure design so, the cavity wall of the compaction cavum can realize elastic telescopic, so as to serve damping
Effect.
In the automobile absorber of the present invention, as a kind of preferred technical scheme, the vehicle transit disk with it is slow
Rush between device housing and be provided with compression spring.
Still more preferably, for the set-up mode of the compression spring, the applicant is also further ground
Study carefully improvement, so as to devise a kind of compression spring set-up mode of novelty, specially:As a kind of preferred technical side
Case, the concrete set-up mode of the compression spring is as follows:It is installed with the first spring base on the vehicle transit disk, described
One spring base is installed on the top rubber cushion, and second spring seat, the second spring are installed with the buffer housing
Cover for seat is loaded on the external part, and the compression spring is clamped between first spring base and the second spring seat.
By structure design so, the compression spring can secondary buffer serve cushioning effect, so as to reduce
The oil pressure of lubricating oil during buffer damping, reduces the pressure oscillation of oil lubrication system.
Certainly, can also be without arranging the compression spring between the vehicle transit disk and the buffer housing, this
Shi Wufei damping effects are in a slight decrease, and all increases of oil pressure of lubricating oil.It is further to arrange the compression spring
Improve and improve.
As described above, the invention provides a kind of automobile absorber, the automobile absorber is by unique structure design
With cooperate, 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 vehicle transit disk is subject to
During impact, centre pilot axle retraction, compression reseting spring eliminates partial vibration, and with the retraction of centre pilot axle, compression
Piston compression piston compresses the air of intracavity 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 buffer housing is processed
When technique become it is simpler easily, it is only necessary to being directed to the inwall of cylinder carries out polish, in use, guide cylinder
Guide cylinder can be individually replaced after abrasion, without whole buffer housing is replaced, maintenance cost is greatly reduced, be had
Good 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.
3rd, 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
Rush device housing to separate by front seal and rear seal, and front seal and rear seal all adopt elastomeric material, can be with
The vibration of buffering centre pilot axle, it is to avoid buffer housing receives the impact of centre pilot axle and vibrates aggravation.
4th, 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.
5th, due to being provided with compression spring between vehicle transit disk and buffer housing, secondary buffer serves damping work
With the oil pressure of lubricating oil during so as to reducing buffer damping reduces the pressure oscillation of oil lubrication system.
6th, the power of lubricating oil system is provided by gas energy storage chamber, it is also possible to for draining into 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 automobile absorber, the automobile absorber is by unique structure design
With cooperate, so as to achieve many Advantageous Effects, auto industry field have a good application prospect and industry
Change productive potentialities, it may have good promotional value.
Description of the drawings
Fig. 1 is the structural representation of the embodiment of automobile absorber 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 respectively following concrete meaning, element and/or part.
In figure:1st, vehicle transit disk, 2, top rubber cushion, the 3, first spring base, 4, buffer housing, 401, piston guide chamber,
402nd, piston compression chamber, the 403, first inlet channel, 404, oil storage tank, 405, outlet passageway, the 406, second inlet channel, 407,
Air supply channel, 408, gas-permeable channels, 409, gas energy storage chamber, the 410, first drainback passage, the 411, second drainback passage, 5, center
The axis of guide, 501, guide piston, 502, compression piston, 6, guide cylinder, 601, air-vent, 602, fuel feed hole, 7, back-moving spring, 8,
Dust cover, the 801, first fixing end, the 802, second fixing end, 803, compaction cavum, 9, external part, 901, dust cap, 902, oil
Envelope, 903, guide pad, 904, lubricant reservoir, 10, second spring seat, 11, compression spring, the 12, first breather check valve, 13, the
Two breather check valves, 14, supply check valve, 15, front seal, 16, rear seal, 17, spacer.
It should be noted that these accompanying drawings are only the description to optimal way of the present invention, other non-optimum are not meant to
Mode, such as usual manner is selected to realize the present invention.
Specific embodiment
With reference to the accompanying drawings and examples the present invention is further described.But the purposes and mesh of these exemplary embodiments
Be only used for enumerate the present invention, not any type of any restriction is constituted to the real protection scope of the present invention, it is more non-to incite somebody to action this
The protection domain of invention is confined to this.
Jointly shown with Fig. 3 as shown in Figure 1, Figure 2, the invention provides a kind of automobile absorber, the automobile absorber includes
The buffer housing 4 of connection suspension, buffer housing 4 has piston guide chamber 401, and piston guide chamber 401 is interior to be slidably fitted with
Centre pilot axle 5, centre pilot axle 5 is connected with vehicle transit disk 1, and in piston guide chamber 401 guide cylinder 6 is provided with, and center is led
Guide piston 501 is provided with to the piston of axle 5, guide piston 501 is slidably mounted in guide cylinder 6, in guide cylinder 6 reset is provided with
Spring 7, one end of back-moving spring 7 is relied on guide piston 501, and the other end is relied in buffer housing 4, buffer housing 4
The piston compression chamber 402 in piston guide chamber 401 is inside communicated with, one end that centre pilot axle 5 is stretched in buffer housing 4 is provided with
Compression piston 502, compression piston 502 is slidably mounted in piston compression chamber 402, is communicated with buffer housing 4 extraneous big
First inlet channel 403 of gas and piston compression chamber 402, in the first inlet channel 403 the first breather check valve 12 is provided with, and is buffered
A gas energy storage chamber 409 is set in device housing 4, gas energy storage chamber 409 connects piston compression chamber 402 by the second inlet channel 406,
The second breather check valve 13 is provided with second inlet channel 406, the connection of gas energy storage chamber 409 is arranged in buffer housing 4
Outlet passageway 405.
By structure design so, when vehicle transit disk 1 is impacted, centre pilot axle 5 bounces back, and compresses reset bullet
Spring 7, so as to eliminate partial vibration;And with the retraction of centre pilot axle 5, the compression piston compression chamber 402 of compression piston 502
Interior cavity so that these compressed airs enter gas energy storage chamber 409 by the second breather check valve 13, also further increase
Damping effect.And the power of lubricating oil system is provided by gas energy storage chamber 409, it is also possible to for draining into other oil sites, save
Lubricating power, the amortisseur can either eliminate vibration by impulsive force, and energy needed for lubrication can be stored again, it is not necessary to frequency
Numerous grease pump that enables is capable of achieving lubrication, has very important significance
The outlet passageway 405 can connect other lubricating pipes, when not using, it is also possible to be blocked using blocking.
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,
Avoid guide piston 501 from producing back pressure when retracting, so as to reduce energy loss, improve damping efficiency and effect.
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, the connection oil storage tank 404 of air supply channel 407 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 from gas energy storage chamber 409 flows to oil storage tank 404.
By structure design so, it is possible to use the energy in gas energy storage chamber 409, by the lubrication in oil storage tank 404
Oil pumps into piston guide chamber 401, lubrication guide piston 501 and centre pilot axle 5 by fuel feed hole 602, so as to improve profit
Sliding efficiency, without the need for extra energy expenditure.
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 with the here of rear seal 16, front seal 15 and rear seal 16 are set on centre pilot axle 5, buffer
The first drainback passage 410, the connection piston guide of the first drainback passage 410 chamber are provided with housing 4 near one end of front seal 15
401。
By structure design so, by front seal 15 and rear seal 16 by centre pilot axle 5 and buffer case
Body 4 is spaced, and front seal 15 and rear seal 16 are elastomeric material or macromolecular elastomer material, can buffer center
The vibration of the axis of guide 5, it is to avoid buffer housing 4 receives the impact of centre pilot axle 5 and vibrates aggravation,
The buffer housing 4 has an external part 9 extended to vehicle transit disk 1, and centre pilot axle 5 is through stretching out
End 9.
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 is 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, so as to further improve
Buffering effect.
A spacer 17 is provided with the external part 9, spacer 17 is set in the outside of centre pilot axle 5, and the end of spacer 17
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.
By structure design so, the lubricating oil in lubricant reservoir 904 can be caused to enter in spacer 17, lubricate center
The axis of guide 5, so as to further increase lubricant effect, it is to avoid jam phenomenon when centre pilot axle 5 runs.
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 longer, its degree of disturbing deformation
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 envelope element, 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 amortisseur of the present invention.
Dust cover 8 is provided between the vehicle transit disk 1 and the external part 9 of buffer housing 4, centre pilot axle 5 stretches out
Dust cover 8 is run through in the part of buffer housing 4, and the two ends of dust cover 8 are tightly connected respectively with vehicle transit disk 1 and external part 9.
By structure design so, dust cover 8 can stop that the debris such as dust are attached on centre pilot axle 5, favorably
Protect the potted component of oil sealing, rubber ring etc., further extend the service life of amortisseur of the present invention.
The dust cover is elastomeric material or macromolecular elastomer material, so as on the one hand serve dust-proof, anti-ageing being turned into
With, elastic shock attenuation effect, the 3rd aspect are on the other hand also acted, once the oil sealing of external part is damaged, dust cover can be with
Play a part of sealing lubricating oil.
The dust cover cocoa is the cover form of conventionally form, as long as above-mentioned effect can be played.
But preferably, the present invention is also further studied to dust cover, and unique design has been carried out to its structure, have
Body is as follows:Dust cover 8 has the first fixing end 801 of connection vehicle transit disk 1 and the second fixing end of connection buffer housing 4
802。
It is further preferred that vehicle transit disk 1 is provided with top rubber cushion 2, the end of the first fixing end 801 passes through fluid sealant
It is sealedly attached on the rubber cushion 2 of top, and centre pilot axle 5 contacts with the first fixing end 801, the first fixing end 801 is solid knot
Structure, only opens up the through hole being adapted with centre pilot axle 5 in the position of centre pilot axle 5, and formation is slidingly sealed structure, serves
Good fixation and elastic buffer is acted on.The end of the second fixing end 802 is installed on external part 9 by sealant sealing
On, serve good sealing effectiveness.
It is described to prevent interior being located at of cover to be provided with compaction cavum 803, center between the first fixing end 801 and the second fixing end 802
The axis of guide 5 runs through the compaction cavum 803, and the cavity wall of compaction cavum 803 is accordion, it is possible to achieve elastic telescopic, so as to play
Cushioning effect.
Compression spring 11, the concrete installation side of compression spring 11 are provided between the vehicle transit disk 1 and buffer housing 4
Formula is as follows, and the first spring base 3 is installed with vehicle transit disk 1, and the first spring base 3 is installed on the rubber cushion 2 of top, buffer case
Second spring seat 10 is installed with body 4, second spring seat 10 is set in external part 9, and compression spring 11 is clamped in the first bullet
Between spring abutment 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 automobile absorber, the automobile absorber is by unique structure design
With cooperate, so as to achieve many Advantageous Effects, auto industry field have a good application prospect and industry
Change productive potentialities, 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 the protection model of the present invention
Enclose.Additionally, it will also be appreciated that after the technology contents for having read the present invention, 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.