CN105179556B - Double-piston stroke induction type resistance changes damping structure - Google Patents
Double-piston stroke induction type resistance changes damping structure Download PDFInfo
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- CN105179556B CN105179556B CN201510625621.3A CN201510625621A CN105179556B CN 105179556 B CN105179556 B CN 105179556B CN 201510625621 A CN201510625621 A CN 201510625621A CN 105179556 B CN105179556 B CN 105179556B
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Abstract
The invention discloses a kind of double-piston stroke induction type resistance to change damping structure, including cylinder body, described cylinder interior sets upper piston and lower piston, inner cylinder is set between described upper piston and lower piston, outer barrel is arranged outside described inner cylinder, described inner cylinder is flexibly connected with outer barrel, and damping endoporus is set on described inner cylinder, damping exit orifice is set on described outer barrel, and described damping endoporus or damping endoporus are width or the through hole of height change.The present invention is due to damping exit orifice or damps endoporus as width or the through hole of height change, when the relative position of upper piston and lower piston changes, inner cylinder and outer barrel relative position is driven to change, in damping exit orifice with damping under endoporus collective effect, the hole size for making damping exit orifice overlapping with damping endoporus changes, so that damping force changes, damping change is realized.
Description
Technical field
The present invention relates to hydraulic shock-absorption to damp field, more particularly, it relates to a kind of double-piston stroke induction type
Resistance changes damping structure.
Background technology
In conventional hydraulic damping structure, damp the generation of strength substantially by both fixed damping oil hole and relief valve Lai
Realize：Fixed damping oil hole limitation hydraulic fluid flow rate, realizes damping；Relief valve is opened when pressure is excessive, and enlargement discharge subtracts
Dynamics is damped less.This is simple pressure inductive damping structure, and damping dynamics can only successively decrease as pressure increases.Needing
Damping strength is incremented by, or the occasion of increase and decrease dynamic change can not all be competent at.Similar damping strength controllable variations are realized at present
Scheme has：1st, electronic control system is added, for example the aperture of damping oil hole is adjusted with stepper motor dynamic, changes damping force at any time
Degree；2nd, hydraulic pump is added, dynamic adjusts fluid pressure, so as to realize damping control.Both solution costs are high, and structure is multiple
Miscellaneous, bulky, debugging maintenance is difficult, and fault rate is high, thus use range is very limited.
This patent proposes a kind of brand-new damping structure：Stroke induction type resistance changes damping structure.Utilize damping oil
Reciprocal flowing at piston both ends carrys out driving mechanical structure, changes the aperture of damping oil hole, and it damps dynamics can be with damping
Stroke changes and arbitrarily increases or reduce, and realizes the effect such as programme-control, small volume, pure mechanic structure is simple and reliable, nothing
External impetus is needed, the blank of current various applications is filled up, commercially there is vast practical space.
The content of the invention
It is existing above-mentioned it is an object of the invention to solve the problems, such as, there is provided a kind of double-piston stroke induction type resistance change
Damping structure.
To realize object above, the technical scheme is that a kind of double-piston stroke induction type resistance change damping knot
Structure, including cylinder body, described cylinder interior set upper piston and lower piston, between described upper piston and lower piston in setting
Tin, outer barrel is arranged outside described inner cylinder, described inner cylinder is flexibly connected with outer barrel, and damping endoporus is set on described inner cylinder,
Damping exit orifice is set on described outer barrel, and described damping endoporus or damping exit orifice are width or the through hole of height change.Due to
It is width or the through hole of height change to damp exit orifice or damp endoporus, is changed in the relative position of upper piston and lower piston
When, drive inner cylinder and outer barrel relative position to change, damping exit orifice with damping endoporus collective effect, make damping exit orifice with
The overlapping hole size of damping endoporus changes, so that hydraulic fluid flow rate changes, realizes that damping dynamics changes.According to
Demand adjustment damping exit orifice and damping endoporus, so that it may so that the aperture of damping exit orifice and the overlapping through hole of damping endoporus it is anticipated that
Become big or diminish, so that damping dynamics increases or reduced according to our demand at work.
Optionally, described inner cylinder is fixedly connected with lower piston, and described outer barrel is fixedly connected with upper piston, under described
Via is set on piston.So upper piston drives outer barrel motion, and lower piston drives inner cylinder motion, and via is used for the logical of hydraulic oil
Cross.
Optionally, axial restraint is connected between described inner cylinder and outer barrel, and driving cylinder is set on described outer barrel, described
Driving cylinder is flexibly connected with outer barrel.Inner cylinder and outer barrel axial restraint connection are that can be rotated between inner cylinder and outer barrel, but cannot
Axially mutually motion, driving cylinder are used to drive outer barrel to rotate.
Optionally, guide rod is set on described driving cylinder, and described guide rod is fixedly connected with driving cylinder, and described is outer
Driver slot is set on cylinder, described driver slot is corresponding with guide rod.Driver slot is oblique driver slot, is passed through in the rotation of outer barrel
Guide rod on driving cylinder slides in driver slot, so as to drive outer barrel to rotate.
Optionally, described outer barrel is fixedly connected with lower piston, and described inner cylinder is connected with outer barrel axial restraint, described
Rubber bag tank is set above cylinder body, and described rubber bag tank is fixedly connected with cylinder body, and drive device is set in described rubber bag tank, described
Drive device be fixedly connected with rubber bag tank, described drive device and the circumferentially fixed connection of inner cylinder.
Optionally, described drive device includes inner ring and outer ring, and drive rod, institute are set between described inner ring and outer ring
The drive rod both ends stated are fixedly connected with inner ring and outer ring respectively.
Rubber bag tank can play a part of buffering, and the external diameter of rubber bag tank changes, and drive outer ring motion, then pass through drive rod
Inner ring is driven to rotate, inner ring, which rotates, drives lower piston or damped cylinder to rotate, so as to realize damping change.
Optionally, described outer ring includes some driving pieces, and described driving piece is equidistantly distributed in rubber bag tank.Driving
Piece is equidistantly distributed in rubber bag tank, makes inner ring uniform force, stability of rotation, improves the stability of damping.
Optionally, described inner cylinder is fixedly connected with upper piston, and described outer barrel is connected with inner cylinder axial restraint.
Optionally, piston rod is set on described lower piston, and described piston rod is fixedly connected with lower piston, and described is outer
Rotary cylinder is set on cylinder, described piston rod is flexibly connected with rotary cylinder.
Lower piston moves, and drives piston rod movement, and piston rod drives rotary cylinder to rotate, and rotary cylinder rotates, and drives outer barrel to turn
It is dynamic, so as to realize the mutual rotation of outer barrel and inner cylinder, cause damping oil hole aperture to change, hydraulic fluid flow rate is changed, most
Realize that damping dynamics changes eventually.
Optionally, driver slot is set on described rotary cylinder, guide rod, described guide rod are set on described piston rod
It is corresponding with driver slot.Driver slot is oblique driver slot, by driving the guide rod on cylinder in driver slot in the rotation of outer barrel
Slide, so as to drive outer barrel to rotate.
The invention has the advantages that：Due to damping exit orifice or endoporus is damped as width or the through hole of height change,
When the relative position of upper piston and lower piston changes, inner cylinder and outer barrel relative position is driven to change, it is outer in damping
Hole is with damping under endoporus collective effect, and the hole size for making damping exit orifice overlapping with damping endoporus changes, so that hydraulic pressure
Oil stream amount changes, and realizes that damping dynamics changes.
Brief description of the drawings
Fig. 1 is a kind of structural representation of embodiment one；
Fig. 2 is a kind of structural representation of embodiment two；
Fig. 3 is a kind of structural representation of embodiment three；
Fig. 4 is a kind of structural representation of drive device；
Fig. 5 is a kind of structural representation of example IV；
Fig. 6 is a kind of structural representation of rotary principle.
1st, cylinder body, 2, upper piston, 3, lower piston, 4, outer barrel, 5, inner cylinder, 6, damping endoporus, 7, damping exit orifice, 8, via,
9th, drive device, 10, rubber bag tank, 11, guide rod, 12, driver slot, 31, piston rod, 41, driving cylinder, 42, rotary cylinder, 91, outer
Circle, 92, inner ring, 93, drive rod, 94, driving piece.
Embodiment
With reference to specific embodiment, and with reference to accompanying drawing, technical scheme is further described：
Embodiment one：Double-piston stroke induction type resistance change damping structure (see accompanying drawing 1), including cylinder body 1, described cylinder
The inside of body 1 sets upper piston 2 and lower piston 3, setting inner cylinder 5 between described upper piston 2 and lower piston 3, outside described inner cylinder 5
Portion is arranged outer barrel 4, and described inner cylinder 5 is flexibly connected with outer barrel 4, and damping endoporus 6, described outer barrel 5 are set on described inner cylinder 4
Upper to set damping exit orifice 7, described damps endoporus 6 or damping exit orifice 7 as width or the through hole of height change, described inner cylinder 5
It is fixedly connected with lower piston 3, described outer barrel 4 is fixedly connected with upper piston 2, and via 8 is set on described lower piston 3.
Upper piston drives outer barrel motion, and lower piston drives inner cylinder motion, and via passes through outer due to damping for hydraulic oil
Hole or damping endoporus are width or the through hole of height change, when the relative position of upper piston and lower piston changes, are driven
Inner cylinder and outer barrel relative position change, in damping exit orifice with damping endoporus collective effect, making in damping exit orifice and damping
The overlapping hole size in hole changes, and hydraulic fluid flow rate is changed, and then realizes that damping dynamics changes.
Embodiment two：Double-piston stroke induction type resistance change damping structure (see accompanying drawing 2,6), including cylinder body 1, it is described
The inside of cylinder body 1 sets upper piston 2 and lower piston 3, and inner cylinder 5, described inner cylinder 5 are set between described upper piston 2 and lower piston 3
Outside is arranged outer barrel 4, and described inner cylinder 5 is flexibly connected with outer barrel 4, and damping endoporus 6 is set on described inner cylinder 4, and described is outer
Damping exit orifice 7 is set on cylinder 5, and described damping endoporus 6 or damping endoporus 7 are width or the through hole of height change, and described is interior
Axial restraint is connected between cylinder 5 and outer barrel 4, and driving cylinder 41 is set on described outer barrel 4, and described driving cylinder 41 is lived with outer barrel 4
It is dynamic to connect, guide rod 11 is set on described driving cylinder 41, and described guide rod 11 is fixedly connected with driving cylinder 41, and described is outer
Setting driver slot 12, described driver slot 12 are corresponding with guide rod 11 on cylinder 4.
Inner cylinder and outer barrel axial restraint connection are that can be rotated between inner cylinder and outer barrel, but axially cannot mutually be transported
Dynamic, driving cylinder is used to drive outer barrel to rotate, and driver slot is oblique driver slot, by driving the guide rod on cylinder in the rotation of outer barrel
Slided in driver slot, so as to drive outer barrel to rotate, inner cylinder and outer barrel relative position change, in damping exit orifice with damping
Under the collective effect of hole, the hole size for making damping exit orifice overlapping with damping endoporus changes, so that hydraulic fluid flow rate occurs
Change, realize that damping dynamics changes.
Embodiment three：Double-piston stroke induction type resistance change damping structure (see accompanying drawing 3,4), including cylinder body 1, it is described
The inside of cylinder body 1 sets upper piston 2 and lower piston 3, and inner cylinder 5, described inner cylinder 5 are set between described upper piston 2 and lower piston 3
Outside is arranged outer barrel 4, and described inner cylinder 5 is flexibly connected with outer barrel 4, and damping endoporus 6 is set on described inner cylinder 4, and described is outer
Damping exit orifice 7 is set on cylinder 5, and described damping endoporus 6 or damping endoporus 7 are width or the through hole of height change, and described is outer
Cylinder 5 is fixedly connected with lower piston 3, and described inner cylinder 4 is connected with the axial restraint of outer barrel 5, and the described top of cylinder body 1 sets rubber bag tank
10, described rubber bag tank 10 is fixedly connected with cylinder body 1, and drive device 9, described drive device are set in described rubber bag tank 10
9 are fixedly connected with rubber bag tank 10, and described drive device 9 and 5 circumferentially fixed connection of inner cylinder, described drive device 9 includes interior
Circle 92 and outer ring 91, sets drive rod 93 between described inner ring 92 and outer ring 91, the described both ends of drive rod 93 respectively with it is interior
Circle 92 is fixedly connected with outer ring 91, and described outer ring 91 includes four driving pieces 94, and described driving piece 94 equidistantly distributes
In rubber bag tank 10.
Rubber bag tank can play a part of buffering, and driving piece is equidistantly distributed in rubber bag tank, is made inner ring uniform force, is rotated
Steadily, the stability of damping is improved, the external diameter of rubber bag tank changes, and drives outer ring motion, then in being driven by drive rod
Circle rotates, and inner ring, which rotates, drives lower piston or damped cylinder to rotate, and the hole size for making damping exit orifice overlapping with damping endoporus is sent out
Changing, so that hydraulic fluid flow rate changes, realize that damping dynamics changes.
Example IV：Double-piston stroke induction type resistance change damping structure (see accompanying drawing 5,6), including cylinder body 1, it is described
The inside of cylinder body 1 sets upper piston 2 and lower piston 3, and inner cylinder 5, described inner cylinder 5 are set between described upper piston 2 and lower piston 3
Outside is arranged outer barrel 4, and described inner cylinder 5 is flexibly connected with outer barrel 4, and damping endoporus 6 is set on described inner cylinder 4, and described is outer
Damping exit orifice 7 is set on cylinder 5, and described damping endoporus 6 or damping endoporus 7 are width or the through hole of height change, and described is interior
Cylinder 5 is fixedly connected with upper piston 2, and described outer barrel 4 is connected with the axial restraint of inner cylinder 5, and piston rod is set on described lower piston 3
31, described piston rod 31 is fixedly connected with lower piston 3, on described outer barrel 4 set rotary cylinder 42, described piston rod 31 with
Rotary cylinder 42 is flexibly connected, and driver slot 12 is set on described rotary cylinder 42, guide rod 11, institute are set on described piston rod 31
The guide rod 11 stated is corresponding with driver slot 12.
Lower piston moves, and drives piston rod movement, and piston rod drives rotary cylinder to rotate, and rotary cylinder rotates, and drives outer barrel to turn
Dynamic, so as to realize the mutual rotation of outer barrel and inner cylinder, the hole size for making damping exit orifice overlapping with damping endoporus changes, from
And hydraulic fluid flow rate is changed, realize that damping dynamics changes.Driver slot is oblique driver slot, passes through drive in the rotation of outer barrel
Guide rod on dynamic cylinder slides in driver slot, so as to drive outer barrel to rotate.
Above-mentioned embodiment is used for illustrating the present invention, rather than limits the invention, the present invention's
In spirit and scope of the claims, to any modifications and changes of the invention made, protection model of the invention is both fallen within
Enclose.
Claims (10)
1. a kind of double-piston stroke induction type resistance changes damping structure, it is characterized in that, including cylinder body, described cylinder interior set
Upper piston and lower piston are put, inner cylinder is set between described upper piston and lower piston, outer barrel is arranged outside described inner cylinder, it is described
Inner cylinder be flexibly connected with outer barrel, damping endoporus is set on described inner cylinder, damping exit orifice is set on described outer barrel, it is described
It is width or the through hole of height change to damp exit orifice or damp endoporus.
2. double-piston stroke induction type resistance according to claim 1 changes damping structure, it is characterized in that, described inner cylinder
It is fixedly connected with lower piston, described outer barrel is fixedly connected with upper piston, and via is set on described lower piston.
3. double-piston stroke induction type resistance according to claim 1 changes damping structure, it is characterized in that, described inner cylinder
Axial restraint is connected between outer barrel, and driving cylinder is set on described outer barrel, and described driving cylinder is flexibly connected with outer barrel.
4. double-piston stroke induction type resistance according to claim 3 changes damping structure, it is characterized in that, described driving
Guide rod is set on cylinder, and described guide rod is fixedly connected with driving cylinder, and driver slot, described driving are set on described outer barrel
Groove is corresponding with guide rod.
5. double-piston stroke induction type resistance according to claim 1 changes damping structure, it is characterized in that, described outer barrel
It is fixedly connected with lower piston, described inner cylinder is connected with outer barrel axial restraint, and rubber bag tank is set above described cylinder body, described
Rubber bag tank is fixedly connected with cylinder body, and drive device is set in described rubber bag tank, and described drive device is fixed with rubber bag tank to be connected
Connect, described drive device and the circumferentially fixed connection of inner cylinder.
6. double-piston stroke induction type resistance according to claim 5 changes damping structure, it is characterized in that, described driving
Device includes inner ring and outer ring, sets drive rod between described inner ring and outer ring, described drive rod both ends respectively with inner ring
It is fixedly connected with outer ring.
7. double-piston stroke induction type resistance according to claim 6 changes damping structure, it is characterized in that, described outer ring
Including some driving pieces, described driving piece is equidistantly distributed in rubber bag tank.
8. double-piston stroke induction type resistance according to claim 1 changes damping structure, it is characterized in that, described inner cylinder
It is fixedly connected with upper piston, described outer barrel is connected with inner cylinder axial restraint.
9. double-piston stroke induction type resistance according to claim 8 changes damping structure, it is characterized in that, described lower work
Piston rod is set beyond the Great Wall, and described piston rod is fixedly connected with lower piston, and rotary cylinder, described piston are set on described outer barrel
Bar is flexibly connected with rotary cylinder.
10. double-piston stroke induction type resistance according to claim 9 changes damping structure, it is characterized in that, described turns
Driver slot is set on dynamic cylinder, guide rod is set on described piston rod, described guide rod is corresponding with driver slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510625621.3A CN105179556B (en) | 2015-09-28 | 2015-09-28 | Double-piston stroke induction type resistance changes damping structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510625621.3A CN105179556B (en) | 2015-09-28 | 2015-09-28 | Double-piston stroke induction type resistance changes damping structure |
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| CN105179556A CN105179556A (en) | 2015-12-23 |
| CN105179556B true CN105179556B (en) | 2017-11-17 |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1547193A (en) * | 1977-08-15 | 1979-06-06 | Girling Ltd | Telescopic suspension units for vehicles |
| CN2265450Y (en) * | 1996-08-08 | 1997-10-22 | 顺德市永铿机械有限公司 | Double-layer adjustable single direction damping hydro-cylinder |
| CN104110457A (en) * | 2014-07-01 | 2014-10-22 | 浙江欣康科技有限公司 | Double-piston gas spring structure |
| CN104712701B (en) * | 2015-03-21 | 2017-02-01 | 三峡大学 | Multi-hole adjustable multi-variable-load hydraulic buffer |
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