CN108488293A - A kind of damper damping mechanism and apply its hydraulic pressure-air pressure combination of dampings damper - Google Patents
A kind of damper damping mechanism and apply its hydraulic pressure-air pressure combination of dampings damper Download PDFInfo
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- CN108488293A CN108488293A CN201810386485.0A CN201810386485A CN108488293A CN 108488293 A CN108488293 A CN 108488293A CN 201810386485 A CN201810386485 A CN 201810386485A CN 108488293 A CN108488293 A CN 108488293A
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- damper
- piston
- handle pipe
- cavity
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- 238000013016 damping Methods 0.000 title claims abstract description 237
- 230000007246 mechanism Effects 0.000 title claims abstract description 28
- 238000012856 packing Methods 0.000 claims abstract description 40
- 230000000694 effects Effects 0.000 claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 239000002131 composite material Substances 0.000 claims description 20
- 210000004907 gland Anatomy 0.000 claims description 18
- 238000009434 installation Methods 0.000 claims description 15
- 230000000875 corresponding effect Effects 0.000 claims description 5
- 239000013013 elastic material Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 1
- 230000035939 shock Effects 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 9
- 238000010521 absorption reaction Methods 0.000 abstract description 8
- 239000007789 gas Substances 0.000 description 26
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 239000003921 oil Substances 0.000 description 6
- 239000006096 absorbing agent Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 210000003041 ligament Anatomy 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000000386 athletic effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
- F16F9/068—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid where the throttling of a gas flow provides damping action
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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
- F16F9/3214—Constructional features of pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/36—Special sealings, including sealings or guides for piston-rods
- F16F9/368—Sealings in pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
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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
- F16F9/48—Arrangements for providing different damping effects at different parts of the stroke
- F16F9/486—Arrangements for providing different damping effects at different parts of the stroke comprising a pin or stem co-operating with an aperture, e.g. a cylinder-mounted stem co-operating with a hollow piston rod
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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
- F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
- F16F9/512—Means responsive to load action, i.e. static load on the damper or dynamic fluid pressure changes in the damper, e.g. due to changes in velocity
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a kind of damper damping mechanism and its hydraulic-pneumatic combination of dampings damper is applied, belongs to damper field.The damper damping mechanism of the present invention, in pushing moment, part resisting medium flows to macropore by aperture and generates pushing damping, part resisting medium is flowed by the gap between damping piston and handle pipe, part resisting medium flows into macropore by the lateral wall groove of piston ring through sawtooth notch, efficiently solves the problems, such as that damper pushes moment generation impact sense；In springback process, the gap between the outside expansion plugging damping piston of piston packing and handle pipe improves rebound damping, especially in the environment that road conditions are continuously jolted, damper movement travel is again long, and needs the reciprocating motion of higher frequency, and damping is all the more prominent.The hydraulic-pneumatic combination of dampings damper of the present invention, pilot seal cooperatively forms the atmospheric pressure cavity of sealing between handle pipe and casing, it is therefore prevented that pressure touch bottom under damper realizes hydraulic-pneumatic combined shock absorption effect.
Description
Technical field
The present invention relates to a kind of damping mechanism and dampers, more specifically to a kind of damper damping mechanism and answer
With its hydraulic pressure-air pressure combination of dampings damper.
Background technology
Currently, the use of damper is very extensive, it is commonly used to the shock-damping structure of the vehicles such as motorcycle, tricycle, automobile
In and other need to use in the field of damping, play the role of reducing impact and vibrations.The type of damper is also more,
It is broadly divided into spring type shock absorber, spring-air damp type damper, hydraulic damping formula damper, air over type front fork
Damper and inflated with nitrogen hydraulic damper etc..Existing spring type shock absorber can bear larger load, but there are self-vibrations to show
As being easy to transmit low-frequency vibration, influencing comfort；The damping effect of existing spring-air damp type damper is also less managed
Think, reason is that the damping force of air is limited, is normally only used for the not high trail bike of speed and makees rear shock absorber；Hydraulic damping
Formula damper is the most commonly used damper of current motorcycle, and damping effect is preferable；Air over type shock absorber for front fork
Damping effect is excellent, adaptable, is one of the structure that motorcycle technology advanced country of world today athletic type vehicle uses；Nitrogen charging
Gas fluid pressure damper, the advantages of being damped using nitrogen, are compensated for the weakness of damping oil damping, keep damping effect more preferable.
Hydraulic damping formula damper, air over type shock absorber for front fork and inflated with nitrogen hydraulic damper are required for using
Damping shock absorption effect is realized to damping oil.The piston damping structure of such damper mostly uses greatly check valve damping structure, as in
State patent No. ZL201310349666.3, authorized announcement date are on December 28th, 2016, and invention and created name is：The work of damper
Plug valve, this application are related to a kind of piston valve of damper, can be embodied simultaneously when driving in vehicle and be based on passing to damper
The damping force variable effect of the frequency domain of the vibration or impact that reach and the damping force variable effect based on pressure.Its valve body uses leaf
Piece valve arrangement pushes in damper and realizes that resisting medium flows with corresponding leaf valve is opened respectively in springback process, real
Existing damping.But existing damping mechanism generally existing damper pushes the impact sense of moment, this phenomenon at present
Be primarily due to push moment in damper, hydraulic oil can not quickly not flow and caused by, cause damper to push moment and subtract
Shake comfort is had a greatly reduced quality；Feel without impact alternatively, damper pushes moment, damper is caused directly to touch bottom；Alternatively, damper returns
Play damping unobvious.Based on the problem, it is necessary to be further improved to existing damping mechanism, be subtracted with overcoming
It shakes device and pushes impact sense by force, the problem at lower pressure touch bottom and rebound damping difference.
Invention content
1. technical problems to be solved by the inivention
It is an object of the invention to overcome the damping structure of existing damper to exist to push to impact to feel strong, rebound damping
The deficiencies of not good enough, provides a kind of damper damping mechanism and applies its hydraulic pressure-air pressure combination of dampings damper, using the present invention
Technical solution, in damper pushes moment, part resisting medium, which by aperture flows to macropore and generates, pushes damping, while part
Resisting medium is flowed by the gap between damping piston and handle pipe, is efficiently solved because resisting medium can not be quick in pushing moment
It flows and leads to the problem of impact sense；In damper springback process, resisting medium flows to aperture by macropore so that piston seal
Circle inner chambers pressure increases and promotes the gap between the outside expansion plugging damping piston of piston packing and handle pipe, and in work
After plug sealing ring inner chambers pressure reduces, piston packing retraction restores, and improves rebound damping, especially connects in road conditions
In the continuous environment to jolt, damper movement travel is again long, and needs the reciprocating motion of higher frequency, and damping shock absorption effect is all the more prominent
Go out.In addition, the lateral wall due to piston ring close to rodless cavity side is equipped with groove, piston packing is close to the side of rod chamber
End face be equipped with sawtooth notch, during damper pushes, also part resisting medium by piston ring lateral wall groove stream
Enter in sawtooth notch, and then flowed out by macropore, ensure that damper pushes moment resisting medium and quickly flows, further reduced
Damper pushes the impact resistance of moment.Also, hydraulic pressure-air pressure combination of dampings damper, is oriented to close between handle pipe and casing
Envelope cooperatively forms the atmospheric pressure cavity of sealing, it is therefore prevented that pressure touch bottom under damper realizes hydraulic pressure-air pressure combined shock absorption effect.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention is：
A kind of damper damping mechanism of the present invention, including handle pipe, piston rod and the damping piston on piston rod, institute
The damping piston stated is located in handle pipe, and handle pipe is divided into rodless cavity and rod chamber, and the damping piston coordinates with handle ligament,
Make between the lateral wall of damping piston and the madial wall of handle pipe that there are the gaps flowed for resisting medium；The damping piston packet
Piston ring and piston packing are included, the piston packing is installed in the sealing ring installation cavity of piston ring, and piston seal
The internal diameter of circle is more than the internal diameter of sealing ring installation cavity, makes to be formed with cavity between piston packing and sealing ring installation cavity, described
Piston packing along it can be radially expanded and bounce back under the effect of the pressure of cavity internal damping medium；On the piston ring
With the first damping hole of above-mentioned cavity and it is connected to the second damping hole of rod chamber and above-mentioned cavity, institute equipped with connection rodless cavity
The aperture for the first damping hole stated is less than the aperture of the second damping hole.
Further, the piston ring is additionally provided with communication seals circle installation cavity on the lateral wall of rodless cavity side
Groove, the piston packing close to a side end face of rod chamber be equipped with sawtooth notch.
Further, inner wall of the opening direction of first damping hole and the second damping hole towards handle pipe.
Further, the damping piston is installed on one end end of piston rod by upper and lower two trim rings, and on
Lower two trim rings cover the outs open of the first damping hole and the second damping hole to change the first damping hole and the second damping respectively
The opening direction in hole, so that the resisting medium in the first damping hole and the second damping hole is flowed to the inner wall direction of handle pipe.
Further, the position of first damping hole and the second damping hole mutually staggers.
Further, the cross sectional shape of the piston packing is rectangle.
A kind of hydraulic pressure-air pressure combination of dampings damper using above-mentioned damper damping mechanism of the present invention, including set
Pipe, handle pipe, piston rod and the damping piston on piston rod, the handle pipe are set in casing, and between handle pipe and casing
Pilot seal cooperatively forms the atmospheric pressure cavity of sealing, and casing is fixed in one end that the piston rod is pierced by handle pipe by hanging bolt
Bottom, be equipped with damping spring in the rodless cavity of the handle pipe, be equipped with buffer spring in the rod chamber of handle pipe, and filled in handle pipe
Full damping oil or gas mixture.
Further, one end that the piston rod is connected with sleeve bottom is additionally provided with composite gland bush, this is compound
Gasket is made of composite elastic material on the outside of metal gasket, and the inner hole wall of the composite gland bush is close to the bar of piston rod
Wall is close to the inner wall of casing on the outside of composite gland bush, and composite gland bush is on the elastic material end face of atmospheric pressure cavity side
Also have and is adjacent to piston rod bar wall and is close to the boss of internal surface of sleeve pipe.
Further, the gas receiver of connection atmospheric pressure cavity is additionally provided on the casing, and in gas receiver and atmospheric pressure cavity
Air-pressure damping adjusting rod is additionally provided on connecting path.
Further, air pump is also associated on the gas receiver, the air pump, which is connected to the motor, to be connect, the electricity
Machine is electrically connected with control system, and the control system is electrically connected with the pressure sensor for detecting air pressure cavity pressure, is used
Corresponding action is executed in the pressure signal control motor detected according to pressure sensor, and then adjusts the gas in gas receiver
Pressure.
3. advantageous effect
Using technical solution provided by the invention, compared with existing known technology, there is following remarkable result：
(1) a kind of damper damping mechanism of the invention and its hydraulic pressure-air pressure combination of dampings damper is applied, damping
Piston and handle ligament coordinate, between making between the lateral wall of damping piston and the madial wall of handle pipe there are being flowed for resisting medium
Gap is formed with cavity between piston packing and sealing ring installation cavity, and piston packing can be in cavity internal damping medium
It is radially expanded and bounces back along it under pressure effect；In damper pushes moment, part resisting medium flows to macropore by aperture and produces
Pressure drag Buddhist nun is given birth to, while part resisting medium is flowed by the gap between damping piston and handle pipe, efficiently solved because damping is situated between
Matter can not quickly flow in pushing moment and lead to the problem of impact sense；In damper springback process, resisting medium is by macropore
Flow to aperture so that piston packing inner chambers pressure increase and promote the outside expansion plugging damping piston of piston packing with
Gap between handle pipe, and after the reduction of piston packing inner chambers pressure, piston packing retraction restores, and improves rebound
Damping, especially in the environment that road conditions are continuously jolted, damper movement travel is again long, and needs the reciprocal fortune of higher frequency
Dynamic, damping shock absorption effect is all the more prominent；
(2) a kind of damper damping mechanism of the invention and its hydraulic pressure-air pressure combination of dampings damper, piston are applied
Ring close to rodless cavity side lateral wall be equipped with communication seals circle installation cavity groove, piston packing close to rod chamber one
Side end face be equipped with sawtooth notch, during damper pushes, also part resisting medium by piston ring lateral wall groove
It flows into sawtooth notch, and then is flowed out by macropore, ensure that damper pushes moment resisting medium and quickly flows, further decrease
Damper pushes the impact resistance of moment, greatly improved the damping of damper；
(3) a kind of damper damping mechanism of the invention and its hydraulic pressure-air pressure combination of dampings damper is applied, first
The opening direction of damping hole and the second damping hole is pushed in damper in springback process, first damps towards the inner wall of handle pipe
Resisting medium in hole and the second damping hole can generate injection damping action, into one to the inner wall direction jet flow of handle pipe
Step improves the damping of damper；
(4) a kind of damper damping mechanism of the invention and its hydraulic pressure-air pressure combination of dampings damper is applied, first
The position of damping hole and the second damping hole mutually staggers, and increases the resistance that resisting medium flows in damping hole, improves resistance
The buffer damping effect that Buddhist nun hole generates；
(5) a kind of hydraulic pressure-air pressure combination of dampings damper of the invention, pilot seal coordinates shape between handle pipe and casing
At the atmospheric pressure cavity of sealing, due to the gas compression in casing, it is effectively prevent pressure touch bottom under damper, realizes hydraulic pressure-air pressure group
Close damping effect；Also, one end that piston rod is connected with sleeve bottom also has the composite gland bush of sealing atmospheric pressure cavity, ensures
The sealing performance of atmospheric pressure cavity；
(6) a kind of hydraulic pressure-air pressure combination of dampings damper of the invention is additionally provided with the gas storage of connection atmospheric pressure cavity on casing
Cylinder, and air-pressure damping adjusting rod is additionally provided on the connecting path of gas receiver and atmospheric pressure cavity, realize the air-pressure damping of atmospheric pressure cavity
Adjustment effect meets the requirement of different damping effects；
(7) a kind of hydraulic pressure-air pressure combination of dampings damper of the invention, is also associated with air pump on gas receiver, air pump with
Motor is connected, and motor is electrically connected with control system, control system and the pressure sensor electricity for detecting air pressure cavity pressure
Connection, the pressure signal control motor for being detected according to pressure sensor executes corresponding action, and then adjusts gas storage
Air pressure in cylinder；Using sensor and control system control pressure chamber automatic inflating device, the automatic adjustment of air-pressure damping is realized.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram (pressed status) of damper damping mechanism of the present invention；
Fig. 2 is a kind of structural schematic diagram (rebound state) of damper damping mechanism of the present invention；
Fig. 3 is the structural schematic diagram of the damping piston in the present invention；
Fig. 4 is the structural schematic diagram of the piston ring in the present invention；
Fig. 5 is the structural schematic diagram of the piston packing in the present invention；
Fig. 6 is a kind of structural schematic diagram of hydraulic pressure-air pressure combination of dampings damper of the present invention.
Label declaration in schematic diagram：
1, handle pipe；2, piston rod；3, damping piston；3-1, piston ring；3-1-1, cavity；3-1-2, the first damping hole；3-
1-3, the second damping hole；3-1-4, groove；3-2, piston packing；3-2-1, sawtooth notch；4, gap；5, trim ring；6, it damps
Spring；7, buffer spring；8, casing；9, pilot seal component；10, composite gland bush；11, hanging bolt；12, air-pressure damping tune
Pole；13, gas receiver；14, air pump；15, motor；16, control system；17, pressure sensor.
Specific implementation mode
To further appreciate that present disclosure, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
In conjunction with shown in Fig. 1 and Fig. 2, a kind of damper damping mechanism of the present embodiment, including handle pipe 1, piston rod 2 and be set to
Damping piston 3 on piston rod 2, damping piston 3 are located in handle pipe 1, and handle pipe 1 is divided for rodless cavity and rod chamber, damping piston 3
With 1 clearance fit of handle pipe, between making between the lateral wall of damping piston 3 and the madial wall of handle pipe 1 there are being flowed for resisting medium
Gap 4, when handle pipe 1 pushes, part resisting medium is flowed by damping hole and generates damping action, while part resisting medium is by hindering
Gap 4 between Buddhist nun's piston 3 and handle pipe 1 is flowed, and is efficiently solved and is produced due to can not quickly flow pushing moment because of resisting medium
The problem of raw impact sense.Damping piston 3 includes piston ring 3-1 and piston packing 3-2, and piston packing 3-2 is installed on piston
In the sealing ring installation cavity of ring 3-1, and the internal diameter of piston packing 3-2 is more than the internal diameter of sealing ring installation cavity, makes piston seal
It is formed with cavity 3-1-1 between circle 3-2 and sealing ring installation cavity, piston packing 3-2 can be in cavity 3-1-1 internal damping media
Pressure effect under be radially expanded and bounce back along it；Piston ring 3-1 is equipped with the first of connection rodless cavity and above-mentioned cavity 3-1-1
Damping hole 3-1-2 and the second damping hole 3-1-3 for being connected to rod chamber and above-mentioned cavity 3-1-1, the first damping hole 3-1-2's
Aperture is less than the aperture of the second damping hole 3-1-3.A kind of damper damping mechanism of the present embodiment, specific work process is such as
Under：
Schematically in Fig. 1 arrows, during handle pipe 1 pushes, the resisting medium part in rodless cavity is by the first resistance
Buddhist nun hole 3-1-2 flows to the second damping hole 3-1-3 by cavity 3-1-1, forms the damping action flowed from aperture to macropore, together
When, since there are gap 4, the resisting medium in a part of rodless cavity has bar by the flow direction of gap 4 between damping piston 3 and handle pipe 1
Chamber flows, in the moment of pushing, you can has resisting medium quickly to flow, efficiently solves because resisting medium can not in pushing moment
It quickly flows and leads to the problem of impact sense.In order to further decrease the impact resistance that damper pushes moment, in the present embodiment
In, piston ring 3-1 be additionally provided on the lateral wall of rodless cavity side communication seals circle installation cavity groove 3-1-4 (such as Fig. 3 and
Shown in Fig. 4), piston packing 3-2 is equipped with sawtooth notch 3-2-1 (such as Fig. 3 and Fig. 5 institutes close to a side end face of rod chamber
Show), in this way, during handle pipe 1 pushes, the local gap between damping piston 3 and handle pipe 1 is increased by groove 3-1-4,
So that flowed into cavity 3-1-1 by sawtooth notch 3-2-1 by the resisting medium that the positions groove 3-1-4 flow into, and by the second resistance
Buddhist nun hole 3-1-3 flows to rod chamber, therefore, during damper pushes, also part resisting medium by piston ring 3-1 outside
Wall groove 3-1-4 is flowed into sawtooth notch 3-2-1, and then is flowed out by macropore, and it is fast to ensure that damper pushes moment resisting medium
Speed flowing further reduced the impact resistance that damper pushes moment, alleviate the impact sense for pushing moment, make in the car
With driving comfort can be improved.
Schematically in Fig. 2 arrows, in 1 springback process of handle pipe, the resisting medium in rod chamber is by the second damping hole 3-
1-3 is flowed into cavity 3-1-1, and flows into rodless cavity after cavity 3-1-1 flows into the first damping hole 3-1-2, since damping is situated between
Matter flows to aperture by macropore, forces pressure in cavity 3-1-1 to increase, the resisting medium forces piston sealing ring in cavity 3-1-1
3-2 radially expands outward, and piston packing 3-2 is made to be adjacent to the inner wall of handle pipe 1, blocks between damping piston 3 and handle pipe 1
There are gaps 4 so that the resisting medium in rod chamber is only capable of flowing to rodless cavity by damping hole, the damping in cavity 3-1-1
After pressure medium reduces, piston packing 3-2 retractions restore, and improve the rebound damping of damper.Due to piston seal
Circle 3-2 is to realize expansion and retraction using the resisting medium pressure in cavity 3-1-1, therefore, when damper movement travel again
When growing, and needing the reciprocating motion of higher frequency, rebound damping shock absorption effect is all the more prominent, the ring especially continuously to jolt in road conditions
It can be more played in border springs back damping.
In addition, in the present embodiment, the opening direction of the first damping hole 3-1-2 and the second damping hole 3-1-3 is towards handle pipe 1
Inner wall, damper push and springback process in, the resisting medium in the first damping hole 3-1-2 and the second damping hole 3-1-3
It can generate injection damping action to the inner wall direction jet flow of handle pipe 1, further improve the damping of damper.
Specifically, as shown in figure 3, above-mentioned damping piston 3 is installed on one end end of piston rod 2 by upper and lower two trim rings 5, and on
Lower two trim rings 5 cover the outs open of the first damping hole 3-1-2 and the second damping hole 3-1-3 to change the first damping hole respectively
The opening direction of 3-1-2 and the second damping hole 3-1-3, so that the damping in the first damping hole 3-1-2 and the second damping hole 3-1-3
Medium is flowed to the inner wall direction of handle pipe 1；Also, the aperture position of the first damping hole 3-1-2 and the second damping hole 3-1-3 most
The short slot extended outward is set well.Using the above structure, the first damping hole 3-1-2 and the second damping hole 3-1-3 processing and fabricatings
Convenient, damping piston 3 is installed simple and convenient.It is shown in Figure 4, in the present embodiment, the dampings of the first damping hole 3-1-2 and second
The position of hole 3-1-3 mutually staggers and preferably increases the resistance that resisting medium flows in damping hole, improves damping hole generation
Buffer damping effect.The quantity of the first above-mentioned damping hole 3-1-2 is preferable less than the quantity of the second damping hole 3-1-3, such as
Two first damping holes 3-1-2, four the second damping hole 3-1-3 are set in Fig. 4.In addition, in the present embodiment, piston packing
The cross sectional shape of 3-2 is preferably rectangular, can preferably expand outward under pressure, using effect is more preferable.
Embodiment 2
In conjunction with shown in Fig. 6, present embodiment discloses a kind of liquid using the damper damping mechanism described in above-described embodiment 1
Pressure-air pressure combination of dampings damper comprising casing 8, handle pipe 1, piston rod 2 and the damping piston 3 on piston rod 2, handle
Pipe 1 and the concrete structure of damping piston 3 are same as Example 1, and handle pipe 1 is set in casing 8, and is oriented between handle pipe 1 and casing 8
Sealing cooperatively forms the atmospheric pressure cavity of sealing, specifically pilot seal component 9 can be arranged in the aperture position of casing 8 to ensure atmospheric pressure cavity
Sealing；One end that piston rod 2 is pierced by handle pipe 1 is fixed on the bottom of casing 8, the end of piston rod 2 and handle pipe 1 by hanging bolt 11
Portion coordinates also by pilot seal part；It is equipped with damping spring 6 in the rodless cavity of handle pipe 1, handle pipe 1 is provided using damping spring 6
Divide screen resilience, damper is promoted to spring back；Buffer spring 7 is equipped in the rod chamber of handle pipe 1, which is for preventing from hindering
The short spring of Buddhist nun's piston 3 and the 1 bottom direct collision of handle pipe, buffer spring 7 are in free state, only damping in most cases
Device can just be compressed when significantly springing back, and play cushioning effect；Damping oil or gas mixture are full of in handle pipe 1, in handle pipe 1
It is interior be damping oil when, Height of oil be more than maximum stroke movement of the damping piston 3 in handle pipe 1 it is preferable, give full play to damping machine
The hydraulic damping of structure acts on.8 bottom gas leakage of casing in order to prevent, is more advantageous to gas compression, in the present embodiment, piston rod 2
The one end being connected with 8 bottom of casing is additionally provided with composite gland bush 10, and the composite gland bush 10 is by compound bullet on the outside of metal gasket
Property material is made, and the inner hole wall of composite gland bush 10 is close to the bar wall of piston rod 2, and casing 8 is close in the outside of composite gland bush 10
Inner wall, and composite gland bush 10 also has on the elastic material end face of atmospheric pressure cavity side and is adjacent to 2 bar wall of piston rod and tight
Paste the boss of 8 inner wall of casing, in this way, pressure in atmospheric pressure cavity by the elastic boss of composite gland bush 10 outwardly against improving
The sealing performance of composite gland bush 10 ensure that air tight in atmospheric pressure cavity.
Shown in hookup 6, the gas receiver 13 of connection atmospheric pressure cavity is additionally provided on the casing 8 in the present embodiment, and in gas receiver
13 are additionally provided with air-pressure damping adjusting rod 12 on the connecting path of atmospheric pressure cavity.Gas receiver 13 can be automatically replenished leakage in damper
Portion gas, higher in pressure, the gas in gas receiver 13 can enter in atmospheric pressure cavity, realize that the automatic of atmospheric pressure cavity is filled
Gas.Air-pressure damping effect between gas receiver 13 and atmospheric pressure cavity can be adjusted by air-pressure damping adjusting rod 12, be greatly improved
The integral shock-absorbing effect of damper, meets the requirement of different damping effects.Further, in the present embodiment, it stores up
Air pump 14 is also associated on inflator 13, air pump 14 is connected with motor 15, and integral structure can be used with motor 15 in air pump 14, electricity
Machine 15 is electrically connected with control system 16, and control system 16 is electrically connected with the pressure sensor 17 for detecting air pressure cavity pressure,
Corresponding action is executed for detecting obtained pressure signal control motor 15 according to pressure sensor 17, motor 15 drives air pump
14 work, and then the air pressure in gas receiver 13 is adjusted, using 16 control pressure chamber automatic inflating device of sensor and control system, realize
The automatic adjustment of air-pressure damping is particularly suitable for automobile use.
A kind of damper damping mechanism of the present invention and its hydraulic pressure-air pressure combination of dampings damper is applied, damping is lived
Plug coordinates with handle ligament, between making between the lateral wall of damping piston and the madial wall of handle pipe there are being flowed for resisting medium
Gap is formed with cavity between piston packing and sealing ring installation cavity, and piston packing can be in cavity internal damping medium
It is radially expanded and bounces back along it under pressure effect；In damper pushes moment, part resisting medium flows to macropore by aperture and produces
Give birth to pressure drag Buddhist nun, while part resisting medium is flowed by the gap between damping piston and handle pipe, also part resisting medium by
The lateral wall groove of piston ring flows into sawtooth notch, and then is flowed out by macropore, efficiently solves because resisting medium is pushing wink
Between can not quickly flow and lead to the problem of impact sense, simultaneously because the gas compression in casing, make damper pushing that can not touch
Bottom；In damper springback process, resisting medium flows to aperture by macropore so that piston packing inner chambers pressure increase and
Promote the gap between the outside expansion plugging damping piston of piston packing and handle pipe, and in piston packing inner chambers pressure
After reduction, piston packing retraction restores, and improves rebound damping, especially in the environment that road conditions are continuously jolted, damping
Device movement travel is again long, and needs the reciprocating motion of higher frequency, and damping shock absorption effect is all the more prominent.Hydraulic pressure-air pressure combination resistance
Buddhist nun's damper, pilot seal cooperatively forms the atmospheric pressure cavity of sealing between handle pipe and casing, it is therefore prevented that pressure touch bottom under damper, it is real
Hydraulic pressure-air pressure combined shock absorption effect is showed.
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.So if the common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, without creatively designing and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.
Claims (10)
1. a kind of damper damping mechanism, including handle pipe (1), piston rod (2) and the damping piston (3) on piston rod (2),
The damping piston (3) is located in handle pipe (1), and handle pipe (1) is divided into rodless cavity and rod chamber, it is characterised in that：Described
Damping piston (3) and handle pipe (1) clearance fit, make between the lateral wall of damping piston (3) and the madial wall of handle pipe (1) that there are confessions
The gap (4) of resisting medium flowing；The damping piston (3) includes piston ring (3-1) and piston packing (3-2), described
Piston packing (3-2) be installed in the sealing ring installation cavity of piston ring (3-1), and the internal diameter of piston packing (3-2) is big
In the internal diameter of sealing ring installation cavity, make to be formed with cavity (3-1-1), institute between piston packing (3-2) and sealing ring installation cavity
The piston packing (3-2) stated can be radially expanded and bounce back along it under the effect of the pressure of cavity (3-1-1) internal damping medium；
The piston ring (3-1) is equipped with the first damping hole (3-1-2), the Yi Jilian of connection rodless cavity and above-mentioned cavity (3-1-1)
It is connected with the second damping hole (3-1-3) of rod cavity and above-mentioned cavity (3-1-1), the aperture of first damping hole (3-1-2) is small
In the aperture of the second damping hole (3-1-3).
2. a kind of damper damping mechanism according to claim 1, it is characterised in that：The piston ring (3-1) is close
The groove (3-1-4) of communication seals circle installation cavity, the piston packing (3-2) are additionally provided on the lateral wall of rodless cavity side
It is equipped with sawtooth notch (3-2-1) close to a side end face of rod chamber.
3. a kind of damper damping mechanism according to claim 1 or 2, it is characterised in that：First damping hole (the 3-
1-2) and the opening direction of the second damping hole (3-1-3) towards handle pipe (1) inner wall.
4. a kind of damper damping mechanism according to claim 3, it is characterised in that：The damping piston (3) passes through
Upper and lower two trim rings (5) are installed on one end end of piston rod (2), and upper and lower two trim rings (5) cover the first damping hole respectively
The outs open of (3-1-2) and the second damping hole (3-1-3) changes the first damping hole (3-1-2) and the second damping hole (3-1-
3) opening direction, so that resisting medium in the first damping hole (3-1-2) and the second damping hole (3-1-3) is to handle pipe (1)
It flows in inner wall direction.
5. a kind of damper damping mechanism according to claim 3, it is characterised in that：First damping hole (the 3-1-
2) it is mutually staggered with the position of the second damping hole (3-1-3).
6. a kind of damper damping mechanism according to claim 3, it is characterised in that：The piston packing (3-2)
Cross sectional shape be rectangle.
7. a kind of hydraulic pressure-air pressure combination of dampings damping using the damper damping mechanism described in claim 1 to 6 any one
Device, including casing (8), handle pipe (1), piston rod (2) and the damping piston (3) on piston rod (2), the handle pipe (1)
In casing (8), and pilot seal cooperatively forms the atmospheric pressure cavity of sealing, the piston rod between handle pipe (1) and casing (8)
(2) one end for being pierced by handle pipe (1) is fixed on the bottom of casing (8), the rodless cavity of the handle pipe (1) by hanging bolt (11)
It is interior to be equipped with damping spring (6), buffer spring (7) is equipped in the rod chamber of handle pipe (1), and damping oil or oil are full of in handle pipe (1)
Gas mixture.
8. a kind of hydraulic pressure according to claim 7-air pressure combination of dampings damper, it is characterised in that：The piston rod
(2) one end being connected with casing (8) bottom is additionally provided with composite gland bush (10), the composite gland bush (10) by metal gasket outside
Side composite elastic material is made, and the inner hole wall of the composite gland bush (10) is close to the bar wall of piston rod (2), composite gland bush
(10) it is close to the inner wall of casing (8) on the outside of, and composite gland bush (10) is gone back on the elastic material end face of atmospheric pressure cavity side
With the boss for being adjacent to piston rod (2) bar wall He being close to casing (8) inner wall.
9. a kind of hydraulic pressure according to claim 7 or 8-air pressure combination of dampings damper, it is characterised in that：The casing
(8) it is additionally provided with the gas receiver (13) of connection atmospheric pressure cavity on, and gas is additionally provided on the connecting path of gas receiver (13) and atmospheric pressure cavity
Pressure drag Buddhist nun adjusting rod (12).
10. a kind of hydraulic pressure according to claim 9-air pressure combination of dampings damper, it is characterised in that：The gas receiver
(13) air pump (14) is also associated on, the air pump (14) is connected with motor (15), and the motor (15) is with control
System (16) electrical connection, the control system (16) are electrically connected with the pressure sensor (17) for detecting air pressure cavity pressure,
Pressure signal control motor (15) for being obtained according to pressure sensor (17) detection executes corresponding action, and then adjusts storage
Air pressure in inflator (13).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810386485.0A CN108488293A (en) | 2018-04-26 | 2018-04-26 | A kind of damper damping mechanism and apply its hydraulic pressure-air pressure combination of dampings damper |
| PCT/CN2019/083582 WO2019206055A1 (en) | 2018-04-26 | 2019-04-21 | Damping mechanism for shock absorber and combined hydraulic-pneumatic damping-based shock absorber employing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810386485.0A CN108488293A (en) | 2018-04-26 | 2018-04-26 | A kind of damper damping mechanism and apply its hydraulic pressure-air pressure combination of dampings damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108488293A true CN108488293A (en) | 2018-09-04 |
Family
ID=63313320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810386485.0A Pending CN108488293A (en) | 2018-04-26 | 2018-04-26 | A kind of damper damping mechanism and apply its hydraulic pressure-air pressure combination of dampings damper |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108488293A (en) |
| WO (1) | WO2019206055A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109436571A (en) * | 2018-12-25 | 2019-03-08 | 重庆具码科技有限公司 | The packing case of impact force is reduced in a kind of tilting procedure |
| CN109458431A (en) * | 2018-10-12 | 2019-03-12 | 深圳市德瑞茵精密科技有限公司 | A kind of variable orifices aperture damping |
| CN110319145A (en) * | 2019-08-12 | 2019-10-11 | 常州市一上电动车辆配件有限公司 | A kind of good hydraulic damper of damping and its hydraulic damping system |
| WO2019206055A1 (en) * | 2018-04-26 | 2019-10-31 | Xu Wei | Damping mechanism for shock absorber and combined hydraulic-pneumatic damping-based shock absorber employing same |
| CN112648325A (en) * | 2019-10-10 | 2021-04-13 | 采埃孚股份公司 | Throttle point device for vibration damper |
| CN112722915A (en) * | 2021-01-06 | 2021-04-30 | 浙江满德新材料有限公司 | High-smoothness tipping paper rewinding device for cigarettes and production process |
| CN114127436A (en) * | 2019-07-12 | 2022-03-01 | 天纳克汽车经营有限公司 | Damper with hydraulic end stop |
| CN114278697A (en) * | 2021-12-14 | 2022-04-05 | 河北震安减隔震技术有限公司 | Viscous damper |
| CN118198900A (en) * | 2024-04-29 | 2024-06-14 | 洛阳鼎红电气科技有限公司 | Electrical control cabinet |
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| CN112722915A (en) * | 2021-01-06 | 2021-04-30 | 浙江满德新材料有限公司 | High-smoothness tipping paper rewinding device for cigarettes and production process |
| CN114278697A (en) * | 2021-12-14 | 2022-04-05 | 河北震安减隔震技术有限公司 | Viscous damper |
| CN118198900A (en) * | 2024-04-29 | 2024-06-14 | 洛阳鼎红电气科技有限公司 | Electrical control cabinet |
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| Publication number | Publication date |
|---|---|
| WO2019206055A1 (en) | 2019-10-31 |
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