CN108266484A - For the damper of vehicle and with its vehicle - Google Patents
For the damper of vehicle and with its vehicle Download PDFInfo
- Publication number
- CN108266484A CN108266484A CN201810044363.3A CN201810044363A CN108266484A CN 108266484 A CN108266484 A CN 108266484A CN 201810044363 A CN201810044363 A CN 201810044363A CN 108266484 A CN108266484 A CN 108266484A
- Authority
- CN
- China
- Prior art keywords
- piston
- vehicle
- working cylinder
- cavity
- buffer stopper
- 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.)
- Granted
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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
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/185—Bitubular units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
- B60G13/02—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally
- B60G13/06—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally of fluid type
- B60G13/08—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
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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
- F16F9/3221—Constructional features of 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
- F16F9/3207—Constructional features
- F16F9/3228—Constructional features of connections between pistons and 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
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
-
- 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
- F16F2230/00—Purpose; Design features
- F16F2230/0023—Purpose; Design features protective
-
- 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
- F16F2232/00—Nature of movement
- F16F2232/08—Linear
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a kind of damper for vehicle and there is its vehicle, which includes：Oil storage cylinder, working cylinder, piston rod and buffer stopper, working cylinder are arranged in oil storage cylinder；Piston rod is movably disposed in working cylinder and one end of piston rod is pierced by working cylinder and oil storage cylinder outward, and piston rod includes：Piston bar body, piston-rod lower end head and piston valve system, piston-rod lower end head is arranged on the lower end of piston bar body and the first cavity is limited between piston bar body, it is provided with oil duct and lower oil duct on piston-rod lower end head, piston valve system is arranged on piston-rod lower end head and by working cylinder internal insulation into upper working cylinder and lower working cylinder；Buffer stopper is movably disposed in the first cavity and by the first cavity isolation into upper plenum and lower cavity, and upper plenum connects upper working cylinder by upper oil duct, and lower cavity connects lower working cylinder by lower oil duct.Damper according to the present invention for vehicle can effectively improve vehicle comfort.
Description
Technical field
The present invention relates to technical field of vehicle, in particular to a kind of damper for vehicle and with its vehicle
.
Background technology
Conventional damper is being stretched in compression process, and fluid is only by the valve opening on piston valve and throttle orifice in piston
It circulates between up/down chamber, when damper is by high speed impact, damping force is mutated, and influences vehicle comfort；And in vibration damping
It is larger by impact force inside shock absorber valve when device is by high speed impact, easily cause the initial failure of valve system inner body, shadow
Ring normal use.
Invention content
The present invention is directed at least solve one of technical problem in the prior art.For this purpose, the present invention proposes a kind of use
In the damper of vehicle, the damping mutation when damper for vehicle can effectively reduce damper by high speed impact carries
High vehicle comfort.
The invention also provides a kind of vehicles with the above-mentioned damper for vehicle.
Damper for vehicle according to embodiments of the present invention, including：Oil storage cylinder, working cylinder, the working cylinder setting
In the oil storage cylinder；Piston rod, the piston rod is movably disposed in the working cylinder and one end of the piston rod
It is pierced by the working cylinder and the oil storage cylinder outward, the piston rod includes：Piston bar body, piston-rod lower end head and piston valve
System, the piston-rod lower end head are arranged on the lower end of the piston bar body and limit first between the piston bar body
Cavity is provided with oil duct and lower oil duct on the piston-rod lower end head, and the piston valve system is arranged on the piston-rod lower end
Into upper working cylinder and lower working cylinder on head and by the working cylinder internal insulation；Buffer stopper, the buffer stopper are movably disposed
It is described into upper plenum located above and the lower cavity being located below in first cavity and by first cavity isolation
Upper plenum connects the upper working cylinder by the upper oil duct, and the lower cavity connects the lower work by the lower oil duct
Cylinder.
Damper according to the present invention for vehicle, by setting buffer stopper in piston rod in piston rod movement mistake
Cushioning effect is played to it in journey, damping mutation during so as to effectively reduce damper by high speed impact, and then improve vehicle and relax
Adaptive, at the same can also effective protection valve system, improve the service life of valve system.
Damper according to an embodiment of the invention for vehicle, the buffer stopper include：Buffer stopper outer tube and
Flexible piece, the flexible piece is arranged in the buffer stopper outer tube, and the upper and lower ends of the flexible piece are formed with protrusion, institute
State the upper and lower end face for being raised above the buffer stopper outer tube.
Optionally, the buffer stopper outer tube be metal sleeve, the flexible piece be rubber block, the rubber block with it is described
Metal sleeve vulcanization is integrated.
Further, annular groove is provided on the peripheral surface of the metal sleeve, work is provided in the annular groove
Plug ring, the piston ring are contacted with the internal face of first cavity.
Damper according to an embodiment of the invention for vehicle further includes：Limited block, the limited block are positioned
In the lower cavity and suitable for only supporting limiting with the buffer stopper.
Optionally, positioning protrusion is provided on the internal face of the lower cavity, is provided on the peripheral surface of the limited block
Positioning groove, the positioning groove coordinate with the positioning protrusion.
Optionally, logical liquid bath is provided between two positioning grooves, the logical liquid bath is used to connect the lower oil duct
With the lower cavity.
Optionally, the logical liquid bath and the positioning groove are multiple, and are alternately arranged along the circumferential direction of the limited block.
Damper according to an embodiment of the invention for vehicle, the piston-rod lower end head include：Cylindrical body
Portion and hollow shaft portion, the hollow shaft portion are arranged on the lower end in the cylindrical body portion, are formed in the hollow shaft portion described
Lower oil duct, the limited block be located in the interior bottom of the lower cavity and with the upper end of the hollow shaft portion, the piston
Valve system is set in the hollow shaft portion.
Optionally, the upper oil duct of the wall, the piston bar body are provided through on the wall in the cylindrical body portion
Lower end diameter become smaller to form diameter diminution part, the diameter diminution part extend into the inner top in the cylindrical body portion.
Vehicle according to the second aspect of the invention sets the vibration damping for vehicle any just like first aspect
Device.The vehicle is identical relative to advantage possessed by the prior art with the above-mentioned damper for vehicle, no longer superfluous herein
It states.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
It obtains significantly or is recognized by the practice of the present invention.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Significantly and it is readily appreciated that, wherein：
Fig. 1 is the structure diagram of the damper for vehicle according to embodiments of the present invention；
Fig. 2 is the partial enlarged view at A in Fig. 1；
Fig. 3 is the structure diagram of piston-rod lower end head in Fig. 2；
Fig. 4 is the vertical view of piston-rod lower end head in Fig. 3；
Fig. 5 is the structure diagram of buffer stopper in Fig. 2；
Fig. 6 is the schematic cross-section of limited block in Fig. 3.
Reference numeral：
Damper 100, oil storage cylinder 1, working cylinder 2, upper working cylinder 21, lower working cylinder 22, piston rod 3, piston bar body 31,
Diameter diminution part 311, piston-rod lower end head 32, cylindrical body portion 321, upper oil duct 3211, hollow shaft portion 322, lower oil duct 3221,
Piston valve system 33, the first cavity 4, upper plenum 41, lower cavity 42, positioning protrusion 421, buffer stopper 5, buffer stopper outer tube 51 are soft
Property part 52, upper raised 521, lower convexity 522, piston ring 53, limited block 6, positioning groove 61, lead to liquid bath 62.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " axial direction ", " radial direction ",
The orientation or position relationship of instructions such as " circumferential directions " are based on orientation shown in the drawings or position relationship, are for only for ease of description originally
It invents and simplifies description rather than indicate or imply that the device of meaning or element must have specific orientation, with specific square
Position construction and operation, therefore be not considered as limiting the invention.In addition, define " first ", the feature of " second " can be with
Express or implicitly include one or more this feature.In the description of the present invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；It can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Below with reference to Fig. 1-Fig. 6 descriptions damper 100 for vehicle according to embodiments of the present invention.Such as Fig. 1-Fig. 6 institutes
Show, according to embodiments of the present invention includes for the damper 100 of vehicle：Oil storage cylinder 1, working cylinder 2, piston rod 3 and buffer stopper
5。
Damper 100 is mainly used for the vibration caused by road surface that decays, and improves the comfort of vehicle, while damper 100 can
Ensure contact of the tire with road surface in vehicle travel process, improve the safety of vehicle.
Specifically, in vehicle body and unsteadiness of wheels, the viscosity of friction and liquid of the internal liquid when flowing through damping hole
Friction forms vibration resistance, and vibrational energy is changed into thermal energy, and be discharged into surrounding air, to reach rapid attenuation vibration
Purpose, improves the comfort of vehicle, while ensures contact of the tire with road surface in vehicle travel process, improves the safety of vehicle
Property.
As shown in Figure 1, the damper 100 according to an embodiment of the invention for vehicle, including：Oil storage cylinder 1 and work
Make cylinder 2, working cylinder 2 is arranged in oil storage cylinder 1, piston rod 3 be movably disposed in working cylinder 2 and one end of piston rod 3 (such as
Upper end shown in Fig. 1) working cylinder 2 and oil storage cylinder 1 are pierced by outward, further, as depicted in figs. 1 and 2, piston rod 3 can be with
Including：Piston bar body 31, piston-rod lower end head 32 and piston valve system 33, wherein piston-rod lower end head 32 are arranged on piston rod sheet
The lower end of body 31, and the first cavity 4 is limited between piston bar body 31, it is provided with oil duct on piston-rod lower end head 32
3211 and lower oil duct 3221, piston valve system 33 (such as rebuilt valve and flowing valve) be arranged on piston-rod lower end head 32, it is optionally, living
Plug valve system 33 can be fixed in the hollow shaft portion 322 of piston-rod lower end head 32 by being spirally connected, thus the connection side of piston valve system 33
Formula is simple, easy to operate.
Simultaneously piston valve system 33 by 2 internal insulation of working cylinder into upper working cylinder 21 and lower working cylinder 22.In this way, with piston rod
For 3 make extensional motion, the hydraulic oil of piston upper chamber (upper working cylinder 21) under the action of oil pressure, by the valve opening on piston and
Throttle orifice flows to piston cavity of resorption (lower working cylinder 22), simultaneously because the stretching of piston rod 3 makes to increase inside working cylinder 2 accordingly
Volume makes lower working cylinder 22 generate certain negative pressure, so as to which the hydraulic oil in oil storage cylinder 1 be made to push the benefit on bottom valve (compression valve) open
It repays valve and enters working cylinder 2 to compensate the space removed due to piston rod 3；At the same time upper working cylinder 21 has a small part fluid to lead to
The clearance leakage between piston rod 3 and guider is crossed to the intracavitary between guider and oil sealing, then passes through the aerial drainage on guider
Hole flows into oil storage cylinder 1, is achieved in the cycle of fluid.
As shown in Fig. 2, buffer stopper 5 is movably disposed in the first cavity 4 and the first cavity 4 is isolated into upper plenum 41
With lower cavity 42, upper plenum 41 is located above buffer stopper 5, and lower cavity 42 is located at below buffer stopper 5, and upper plenum 41 passes through
The upper upper working cylinder 21 of the connection of oil duct 3211, lower cavity 42 connect lower working cylinder 22 by lower oil duct 3221.
In this way, in damper 100 by high speed impact and during immediate compression, 100 fluid of damper can be by under piston rod
The lower oil duct 3221 of end 32 flows into lower cavity 42, so as to which buffer stopper 5 be pushed to move upwards, the upper plenum 41 of 5 upper end of buffer stopper
Interior fluid can be flowed out by the upper oil duct 3211 on piston-rod lower end head 32, under simultaneous buffering block 5 and piston bar body 31
End face flexible contact, so as to being mutated for damping force when effective attenuation damper 100 is by high speed impact.
Similarly, in damper 100 restores stroke at a high speed, hydraulic oil can be by upper on piston-rod lower end head 32
Oil duct 3211 flows into the upper plenum 41 of 5 upper end of buffer stopper, so as to which buffer stopper 5 be pushed to move downward, the lower cavity of 5 lower end of buffer stopper
Fluid in 42 can be discharged by the lower oil duct 3221 on piston-rod lower end head 32, and simultaneous buffering block 5 connects with 6 flexibility of limited block
It touches, so as to damping force mutation of the effective attenuation damper 100 in high speed recuperation.
The damper 100 for vehicle according to embodiments of the present invention, by set in piston rod 3 buffer stopper 5 with
Cushioning effect is played to it in 3 motion process of piston rod, damping during so as to effectively reduce damper 100 by high speed impact is dashed forward
Become, and then improve vehicle comfort, at the same can also effective protection valve system, improve the service life of valve system.
As shown in Figure 2 and Figure 5, buffer stopper 5 can include：Buffer stopper outer tube 51 and flexible piece 52, flexible piece 52 are set
In buffer stopper outer tube 51, and the upper and lower ends of flexible piece 52 could be formed with protrusion, be raised above buffer stopper outer tube 51
Upper and lower end face, in other words, upper raised 521 upwards exceed buffer stopper outer tube 51 upper surfaces, in this way, being pressed in damper 100
During indention journey, upper raised 521 first with the lower face flexible contact of piston bar body 31, so as to play cushioning effect,
Play the protective effect to flexible piece 52；Correspondingly, lower convexity 522 exceeds downwards the lower face of buffer stopper outer tube 51, in this way,
Damper 100 restore stroke in, lower convexity 522 first with 6 flexible contact of limited block, so as to play cushioning effect,
The protective effect to flexible piece 52 is played, and then improves the service life of flexible piece 52.
Optionally, buffer stopper outer tube 51 can be metal sleeve, thus can improve the intensity of buffer stopper outer tube 51, soft
Property part 52 can be rubber block, and rubber block and metal sleeve vulcanize and be integrated, thus can simplify the moulding process of buffer stopper 5,
Reduce the production cost of buffer stopper 5.
Further, annular groove can be provided on the peripheral surface of metal sleeve, annular groove is presented axially in gold
Belong to the middle part of casing, piston ring 53 can be provided in annular groove, piston ring 53 is used to connect with the internal face of the first cavity 4
It touches, while piston ring 53 can play the role of sealing.
Optionally, the embodiment of the present invention can also include for the damper 100 of vehicle：Limited block 6, limited block 6 can
Think round pie structure, while limited block 6 is positioned in lower cavity 42, further, limited block 6 is located in lower cavity 42
Bottom and suitable for buffer stopper 5 only support limiting, i.e., the lower convexity 522 of buffer stopper 5 can only be against on limited block 6, it is slow so as to play
Punching acts on.
Further, as shown in Figure 3 and Figure 4, positioning protrusion 421 can be provided on the internal face of lower cavity 42, positioned
Protrusion 421 can be multiple, and multiple positioning protrusion 421 can be circumferentially spaced on the internal face of lower cavity 42, accordingly
Ground can be provided with positioning groove 61 on the peripheral surface of limited block 6, and positioning groove 61 can be multiple, multiple positioning grooves 61
It is circumferentially spaced on the peripheral surface of limited block 6, and multiple positioning grooves 61 on limited block 6 respectively on lower cavity 42
Multiple positioning protrusion 421 coordinate, so as to which limited block 6 is limited in lower cavity 42, and 6 accurate positioning of limited block, be not easy
It is mobile.
Further, as shown in fig. 6, logical liquid bath 62 can be provided between two adjacent positioning grooves 61, lead to liquid bath
62 and positioning groove 61 be alternately arranged along the circumferential direction of limited block 6, and logical liquid bath 62 is for connecting lower oil duct 3221 and lower cavity 42,
In this way, in damper 100 restores stroke at a high speed, the fluid in upper working cylinder 21 flows into upper plenum by upper oil duct 3211
41, and then buffer stopper 5 is pushed to move downward, so as to which the fluid in lower cavity 42 be pushed to flow into lower oil duct by logical liquid bath 62
3221, and lower working cylinder 22 is eventually flowed to, so as to fulfill the cycle of fluid.
As shown in figure 3, piston-rod lower end head 32 can include：Cylindrical body portion 321 and hollow shaft portion 322, wherein tubular
The upper oil duct 3211 of the wall can be provided through on the wall of body part 321, in conjunction with Fig. 2, the lower end of piston bar body 31
Diameter becomes smaller to form diameter diminution part 311, and diameter diminution part 311 extend into the inner top in cylindrical body portion 321, and diameter contracts
Small portion 311 is fixed with cylindrical body portion 321 in lap-joint by welding (such as friction welding (FW)), thus piston bar body 31 and work
Stopper rod lower end 32 is connected firmly, and bonding strength is high.
Hollow shaft portion 322 is arranged on the lower end in cylindrical body portion 321, and lower oil duct 3221 is formed in hollow shaft portion 322,
Optionally, fluid-through tube can be embedded in hollow shaft portion 322, fluid-through tube can be arranged on by interference fit in hollow shaft portion 322, by
This can ensure that fluid effectively circulates inside it.
Further, limited block 6 and the upper end of hollow shaft portion 322, that is to say, that the logical liquid bath 62 on limited block 6
It can be connected with the fluid-through tube in hollow shaft portion 322, so as to ensure effective circulation of fluid.
Here, it should be noted that logical liquid bath 62, upper oil duct 3211, fluid-through tube size can be adjusted as needed,
So as to adjust damper 100 by the attenuating of damping mutation during high speed impact.
In conclusion the damper 100 for vehicle according to embodiments of the present invention, slow by being set in piston rod 3
Block 5 is rushed to play cushioning effect to it in 3 motion process of piston rod, during so as to effectively reduce damper 100 by high speed impact
Damping mutation, and then improve vehicle comfort, at the same can also effective protection valve system, improve the service life of valve system.
The present invention also provides a kind of vehicle, which includes the above-mentioned damper 100 for vehicle, so as to whole
The advantages that vehicle comfort is high.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example describe
Structure, material or feature are contained at least one embodiment of the present invention or example.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can in an appropriate manner combine in any one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of being detached from the principle of the present invention and objective a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The range of invention is limited by claim and its equivalent.
Claims (10)
1. a kind of damper for vehicle, which is characterized in that including：
Oil storage cylinder；
Working cylinder, the working cylinder are arranged in the oil storage cylinder；
Piston rod, the piston rod is movably disposed in the working cylinder and one end of the piston rod be pierced by outward it is described
Working cylinder and the oil storage cylinder, the piston rod include：Piston bar body, piston-rod lower end head and piston valve system, the piston
Bar lower end is arranged on the lower end of the piston bar body and the first cavity, the work is limited between the piston bar body
Oil duct and lower oil duct are provided on stopper rod lower end, the piston valve system is arranged on the piston-rod lower end head and by described in
Working cylinder internal insulation is into upper working cylinder and lower working cylinder；
Buffer stopper, the buffer stopper are movably disposed in first cavity and by first cavity isolation into positioned at upper
The upper plenum in face and the lower cavity being located below, the upper plenum connects the upper working cylinder by the upper oil duct, under described
Cavity connects the lower working cylinder by the lower oil duct.
2. the damper according to claim 1 for vehicle, which is characterized in that the buffer stopper includes：Outside buffer stopper
Casing and flexible piece, the flexible piece is arranged in the buffer stopper outer tube, and the upper and lower ends of the flexible piece are formed with
Protrusion, the upper and lower end face for being raised above the buffer stopper outer tube.
3. the damper according to claim 2 for vehicle, which is characterized in that the buffer stopper outer tube is metallic sheath
Pipe, the flexible piece are rubber block, and the rubber block is integrated with metal sleeve vulcanization.
4. the damper according to claim 2 for vehicle, which is characterized in that set on the peripheral surface of the metal sleeve
Annular groove is equipped with, piston ring is provided in the annular groove, the piston ring is contacted with the internal face of first cavity.
5. the damper according to claim 1 for vehicle, which is characterized in that further include：Limited block, the limited block
It is positioned in the lower cavity and suitable for only supporting limiting with the buffer stopper.
6. the damper according to claim 5 for vehicle, which is characterized in that set on the internal face of the lower cavity
There is positioning protrusion, positioning groove is provided on the peripheral surface of the limited block, the positioning groove coordinates with the positioning protrusion.
7. the damper according to claim 6 for vehicle, which is characterized in that set between two positioning grooves
There is logical liquid bath, for the logical liquid bath for connecting the lower oil duct and the lower cavity, the logical liquid bath and the positioning groove are equal
It is alternately arranged to be multiple, and along the circumferential direction of the limited block.
8. the damper according to claim 5 for vehicle, which is characterized in that the piston-rod lower end head includes：Cylinder
Shape body part and hollow shaft portion, the hollow shaft portion are arranged on the lower end in the cylindrical body portion, are formed in the hollow shaft portion
Have a lower oil duct, the limited block be located in the interior bottom of the lower cavity and with the upper end of the hollow shaft portion, institute
Piston valve system is stated to be set in the hollow shaft portion.
9. the damper according to claim 8 for vehicle, which is characterized in that set on the wall in the cylindrical body portion
There is the upper oil duct through the wall, the lower end diameter of the piston bar body becomes smaller to form diameter diminution part, described straight
Diameter diminution portion extend into the inner top in the cylindrical body portion.
10. a kind of vehicle, which is characterized in that including the damper for vehicle according to any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810044363.3A CN108266484B (en) | 2018-01-17 | 2018-01-17 | A vehicle that is used for shock absorber of vehicle and has it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810044363.3A CN108266484B (en) | 2018-01-17 | 2018-01-17 | A vehicle that is used for shock absorber of vehicle and has it |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108266484A true CN108266484A (en) | 2018-07-10 |
| CN108266484B CN108266484B (en) | 2021-02-23 |
Family
ID=62775822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810044363.3A Active CN108266484B (en) | 2018-01-17 | 2018-01-17 | A vehicle that is used for shock absorber of vehicle and has it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108266484B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023125925A1 (en) * | 2021-12-30 | 2023-07-06 | 比亚迪股份有限公司 | Shock absorber assembly and vehicle having same |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2542886Y (en) * | 2002-06-05 | 2003-04-02 | 周苗长 | Damping-changing shock absorber |
| CN202612464U (en) * | 2012-06-06 | 2012-12-19 | 浙江亚之星汽车部件有限公司 | Automobile shock absorber with dust cover locking piece |
| CN202926946U (en) * | 2012-12-05 | 2013-05-08 | 瑞安市万业电器有限公司 | Vehicle damper with dustproof cover |
| CN205689666U (en) * | 2016-06-28 | 2016-11-16 | 宁波市百孚车业有限公司 | Automobile absorber with locating support |
| US20170009843A1 (en) * | 2015-07-10 | 2017-01-12 | Max's Industrial Co., Ltd. | Original type damping-adjustable shock absorber |
| CN107237852A (en) * | 2017-08-08 | 2017-10-10 | 浙江中兴减震器制造有限公司 | A kind of damper |
| CN206770486U (en) * | 2017-06-09 | 2017-12-19 | 宁波金恒汽车零部件有限公司 | The Split piston of accurate positioning |
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| CN2542886Y (en) * | 2002-06-05 | 2003-04-02 | 周苗长 | Damping-changing shock absorber |
| CN202612464U (en) * | 2012-06-06 | 2012-12-19 | 浙江亚之星汽车部件有限公司 | Automobile shock absorber with dust cover locking piece |
| CN202926946U (en) * | 2012-12-05 | 2013-05-08 | 瑞安市万业电器有限公司 | Vehicle damper with dustproof cover |
| US20170009843A1 (en) * | 2015-07-10 | 2017-01-12 | Max's Industrial Co., Ltd. | Original type damping-adjustable shock absorber |
| CN205689666U (en) * | 2016-06-28 | 2016-11-16 | 宁波市百孚车业有限公司 | Automobile absorber with locating support |
| CN206770486U (en) * | 2017-06-09 | 2017-12-19 | 宁波金恒汽车零部件有限公司 | The Split piston of accurate positioning |
| CN107237852A (en) * | 2017-08-08 | 2017-10-10 | 浙江中兴减震器制造有限公司 | A kind of damper |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023125925A1 (en) * | 2021-12-30 | 2023-07-06 | 比亚迪股份有限公司 | Shock absorber assembly and vehicle having same |
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| Publication number | Publication date |
|---|---|
| CN108266484B (en) | 2021-02-23 |
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