CN105987120A - Bidirectional mechanical friction damper - Google Patents
Bidirectional mechanical friction damper Download PDFInfo
- Publication number
- CN105987120A CN105987120A CN201510047249.2A CN201510047249A CN105987120A CN 105987120 A CN105987120 A CN 105987120A CN 201510047249 A CN201510047249 A CN 201510047249A CN 105987120 A CN105987120 A CN 105987120A
- Authority
- CN
- China
- Prior art keywords
- piston
- piston cylinder
- mechanical friction
- friction damper
- holder
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- 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
Links
- 230000002457 bidirectional effect Effects 0.000 title abstract 6
- 229920001971 elastomer Polymers 0.000 claims description 36
- 239000000806 elastomer Substances 0.000 claims description 24
- 239000004519 grease Substances 0.000 claims description 4
- 239000000314 lubricant Substances 0.000 claims description 4
- 230000014759 maintenance of location Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000002650 habitual effect Effects 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 9
- 238000007789 sealing Methods 0.000 description 9
- 230000007246 mechanism Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
Landscapes
- Fluid-Damping Devices (AREA)
- Vibration Dampers (AREA)
Abstract
The invention discloses a bidirectional mechanical friction damper. The bidirectional mechanical friction damper comprises a piston cylinder, a piston rod, a piston and elastic parts. The piston rod is capable of axially sliding to set a distance and inserted into the piston cylinder, and the piston is arranged at one end, in the piston cylinder all the time, of the piston rod. At least one elastic part is peripherally arranged on the outer side wall of the piston and elastically abutted against the inner surface of the piston cylinder. By means of mechanical friction, bidirectional arbitrary stopping of the piston in the piston cylinder is realized. When the bidirectional mechanical friction damper is used for hovering of an automobile trunk door, the trunk door can stay at a habitual position arbitrarily after being open. The bidirectional mechanical friction damper has advantages of structural simplicity, low manufacturing cost, freeness of inflation and airtightness requirements and insusceptibility to temperature.
Description
Technical field
The present invention relates to a kind of car boot portal bracing bar, particularly to a kind of two-way mechanical
Friction damper.
Background technology
Car boot portal bracing bar the most all uses and has the gas bullet arbitrarily stopping function at present
Spring, but air spring has the disadvantage in that
1. needing inflation, have higher requirement to sealing, air-tightness is also by temperature
Impact, owing to expanding with heat and contract with cold, it there will be sealing problem, and causing can not
The hovering of normal optional position；
The most traditional spring structure of arbitrarily stopping the supple of gas or steam is complicated, and manufacturing cost is high.
Summary of the invention
In order to make up above deficiency, the invention provides a kind of two-way mechanical friction-type resistance
Buddhist nun's device, this two-way mechanical friction damper simple in construction, low cost of manufacture, it is not necessary to
Inflation, does not has sealing requirements, moreover it is possible to realize car boot door optional position hovering merit
Energy.
The present invention is to solve that its technical problem be the technical scheme is that a kind of double
To mechanical friction type antivibrator, including piston cylinder, piston rod, piston and elastomer,
Described piston rod is inserted in piston cylinder to the setpoint distance that can slide, and piston rod begins
Final position one end in piston cylinder is provided with piston, and this piston periphery wall sets
Having at least one elastomer, this elastomeric resilient is tight against piston cylinder inner surface.
As a further improvement on the present invention, described piston rod one end is always positioned at piston
In cylinder, periphery surface, piston rod one end forms concave ring structure in a circle, piston bag
Including holder and pad, described holder and pad are all sheathed on the interior of piston rod one end
Outside concave ring structure, pad is positioned at holder both ends, outside pad holder dorsad
Side end face backstop is the inner side end of concave ring structure in piston rod.
As a further improvement on the present invention, retainer shaft forms a circle respectively to two ends
The ledge structure that diameter inside contracts, this ledge structure is arranged with O-shaped rubber ring, this O
Type rubber ring tight against piston cylinder medial wall, holder, O-shaped rubber ring and piston cylinder it
Between formed seal clearance in be provided with lubricant grease, holder is additionally provided with along it axial
Extend passage, this passage by piston cylinder cavity from retainer shaft to two ends connection.
As a further improvement on the present invention, described pad is towards one end end of holder
Being formed with salient point on face, this salient point is tight against O axial end.
As a further improvement on the present invention, the holder periphery table of described piston
Being interval with at least one ring-type or helical groove on face, elastomer sleeve is located at fixing
Each of device be ring-type or in helical groove.
As a further improvement on the present invention, described elastomer is c-type jump ring and torsion spring
In the combination of one or both.
As a further improvement on the present invention, described piston rod is to setting of can sliding
The structure that distance is inserted in piston cylinder is: be formed with court on described piston cylinder medial wall
Bulge-structure internally, this bulge-structure backstop is in piston piston rod inner dorsad
On end face.
As a further improvement on the present invention, described piston cylinder internal projection structure is a circle
Bulge loop.
As a further improvement on the present invention, wave is formed inside described piston cylinder one end
Shape structure, is additionally provided with a cover plate, and cover plate one end forms connecting portion, outside the cover plate other end
Side surface forms the wavy surface mated with the wavy shaped configuration inside piston cylinder one end, lid
The plate other end be able to be dismantled and closely be inserted in piston cylinder one end.
As a further improvement on the present invention, inside the piston cylinder other end, axial retention sets
Having a baffle ring structure, the piston rod other end just passes this baffle ring structure and stretches out piston cylinder
Outside.
The method have the benefit that: the present invention is by arranging one outside piston
The elastomer of determined number, elastomer has certain normal pressure to piston cylinder inwall, when drawing
During pressure piston rod, certain friction resistance between elastomer and piston cylinder inwall, will be produced
Power, the direction of this frictional resistance is in opposite direction with piston rod movement, and size is by elastomer
The factors such as quantity and piston rod movement speed determine, by the mechanical friction side of this mechanism
Formula achieves that piston is two-way in piston cylinder arbitrarily stops function, when it is for car boot
During door hovering, also it is achieved that the position that the unlatching of luggage door is stopped at arbitrarily custom
Putting, this mechanism structure is simple, and cheap for manufacturing cost need not is inflated, and does not has sealing
Requirement, is not influenced by temperature.
Accompanying drawing explanation
Fig. 1 is the structural principle schematic diagram of the present invention；
Fig. 2 is the A portion enlarged drawing in Fig. 1；
Fig. 3 be in Fig. 1 B-B to cutaway view Amplified image.
Detailed description of the invention
Embodiment: a kind of two-way mechanical friction damper, including piston cylinder 1, lives
Stopper rod 2, piston and elastomer 3, described piston rod 2 axially can slide setting away from
In being inserted in piston cylinder 1, one end that piston rod 2 is always positioned in piston cylinder 1 sets
Having piston, this piston periphery wall is provided with at least one elastomer 3, this elasticity
Body 3 elasticity is tight against piston cylinder 1 inner surface, operation principle: elastomer 3 is contained in work
Plug cylinder 1 is interior and is in elastic compression, and now elastomer 3 is to piston cylinder 1 inwall
There is certain normal pressure, when tension and compression piston rod 2, elastomer 3 and piston cylinder 1
Certain frictional resistance, the direction of this frictional resistance and piston will be produced between inwall
Bar 2 direction of motion is contrary, and size is by elastomer 3 quantity and piston rod 2 movement velocity
Determine etc. factor, achieve piston at piston cylinder by the mechanical friction mode of this mechanism
Two-way in 1 arbitrarily stop function, when it hovers for car boot door, also just realize
The unlatching of luggage door stops at the position of arbitrarily custom, and this mechanism structure is simple,
Cheap for manufacturing cost need not is inflated, and does not has sealing requirements, the most not by the shadow of temperature
Ring.
Described piston rod 2 one end is always positioned in piston cylinder 1, piston rod 2 one end circle
Week, outer surface formed concave ring structure in a circle, and piston includes holder 5 and pad 8,
Described holder 5 and pad 8 are all sheathed on outside the interior concave ring structure of piston rod 2 one end
Side, pad 8 is positioned at holder 5 both ends, the outside of pad 8 holder 5 dorsad
End face backstop is the inner side end of concave ring structure in piston rod 2, is fixed by elastomer 3
Outside holder 5, it is achieved itself and the sliding friction of piston cylinder 1 medial wall, elastic
Body 3 can be along the axial arbitrary arrangement of holder 5, and pad 8 plays holder 5
It is fixedly mounted on the connection supporting role of piston rod 2 one end.
The axial two ends of holder 5 form the ledge structure that a loop diameter inside contracts respectively, should
Being arranged with O-shaped rubber ring 7 on ledge structure, this O-shaped rubber ring 7 is tight against piston cylinder
1 medial wall, formed between holder 5, O-shaped rubber ring 7 and piston cylinder 1 is close
Envelope is provided with lubricant grease in gap, holder 5 is additionally provided with along it axially extended logical
Road 9, piston cylinder 1 cavity at axial for holder 5 two ends is connected by this passage 9, logical
Cross to be formed between O-shaped rubber ring 7 makes inside piston lateral surface and piston cylinder 1 and seal
Space, be used for placing lubricant grease, to piston slide play lubrication, reduce
Piston in use weares and teares, by leading to that setting on holder 5 axially penetrates through
Road 9, it is ensured that during piston moves, the gas energy of piston cylinder 1 both sides cavity
Enough move, it is to avoid the pressure differential that compressed gas produces.
Described pad 8 is formed with salient point on one end end face of holder 5, and this is convex
Point is tight against O axial end, and O-shaped rubber ring 7 is played a supporting role by pad 8,
Ensure that the sealing function of O, it is to avoid sealing ring compressive deformation loses sealing effect
Really.
It is interval with at least one on the holder 5 periphery surface of described piston
Ring-type or helical groove, elastomer 3 is sheathed on each ring-type or spiral shell of holder 5
In rotation groove, elastomer 3 is played positioning action by ring-type or helical groove, it is to avoid
Elastomer 3 deforms and departs from, it is ensured that it is in close contact all the time with piston cylinder 1 medial wall,
Ensure the frictional force that oil is enough, avoid elastomer 3 deformation to cause piston blocking simultaneously.
Described elastomer 3 is the combination of the one or both in c-type jump ring and torsion spring,
Except of course that outside c-type jump ring and torsion spring, it is also possible to it is the elastomeric elements such as rubber ring.
Described piston rod 2 setpoint distance that axially can slide is inserted in piston cylinder 1
Structure is: be formed towards internal bulge-structure on described piston cylinder 1 medial wall,
This bulge-structure backstop is on the end face within piston dorsad piston rod 2.
Described piston cylinder 1 internal projection structure is a circle bulge loop.
Form wavy shaped configuration inside described piston cylinder 1 one end, be additionally provided with a cover plate 6,
Cover plate 6 one end forms connecting portion, and cover plate 6 other end outer surface is formed and piston cylinder
The wavy surface of the wavy shaped configuration coupling inside 1 one end, cover plate 6 other end be able to
Dismounting is closely inserted in piston cylinder 1 one end, and cover plate 6 plays chamber, sealing strut local
Body and the effect of connection strut mount point.
Inside piston cylinder 1 other end, axial retention is provided with a baffle ring structure 4, piston rod
2 other ends just pass this baffle ring structure 4 and stretch out outside piston cylinder 1, baffle ring structure
Piston rod 2, for constraining in piston cylinder 1 by piston rod 2, is axially slided by 4 simultaneously
Move and play guide effect.
Claims (10)
1. a two-way mechanical friction damper, it is characterised in that: include piston
Cylinder (1), piston rod (2), piston and elastomer (3), described piston rod is to energy
Enough slip setpoint distances are inserted in piston cylinder, and piston rod is always positioned in piston cylinder
One end is provided with piston, and this piston periphery wall is provided with at least one elastomer, should
Elastomeric resilient is tight against piston cylinder inner surface.
Two-way mechanical friction damper the most according to claim 1, it is special
Levy for: described piston rod one end is always positioned in piston cylinder, outside the circumference of piston rod one end
Side surface forms concave ring structure in a circle, and piston includes holder (5) and pad (8),
Described holder and pad are all sheathed on outside the interior concave ring structure of piston rod one end, pad
Sheet is positioned at holder both ends, and the end face outside backstop of pad holder dorsad is in piston
The inner side end of concave ring structure in bar.
Two-way mechanical friction damper the most according to claim 2, it is special
Levy for: retainer shaft forms, to two ends, the ledge structure that a loop diameter inside contracts respectively, should
Being arranged with O-shaped rubber ring (7) on ledge structure, this O-shaped rubber ring is tight against piston cylinder
Medial wall, in the seal clearance formed between holder, O-shaped rubber ring and piston cylinder
It is provided with lubricant grease, holder is additionally provided with along its axially extended passage (9), should
Passage by piston cylinder cavity from retainer shaft to two ends connection.
Two-way mechanical friction damper the most according to claim 3, it is special
Levy for: described pad is formed with salient point on one end end face of holder, this salient point
Tight against O axial end.
Two-way mechanical friction damper the most according to claim 2, it is special
Levy for: be interval with at least one ring on the holder periphery surface of described piston
Shape or helical groove, elastomer sleeve is located at each ring-type or helical groove of holder
In.
Two-way mechanical friction damper the most according to claim 1 or 5,
It is characterized by: described elastomer is the group of the one or both in c-type jump ring and torsion spring
Close.
Two-way mechanical friction damper the most according to claim 1, it is special
Levy as knot that described piston rod is inserted in from piston cylinder to the setpoint distance that can slide
Structure is: being formed on described piston cylinder medial wall towards internal bulge-structure, this is convex
Play structure backstop on the end face of piston piston rod inner dorsad.
Two-way mechanical friction damper the most according to claim 7, it is special
Levy for: described piston cylinder internal projection structure is a circle bulge loop.
Two-way mechanical friction damper the most according to claim 1, it is special
Levy for: inside described piston cylinder one end formed wavy shaped configuration, be additionally provided with a cover plate
(6), cover plate one end forms connecting portion, and cover plate other end outer surface is formed and piston
The wavy surface of the wavy shaped configuration coupling inside cylinder one end, the cover plate other end be able to be torn open
Unload and be closely inserted in piston cylinder one end.
Two-way mechanical friction damper the most according to claim 9, it is special
Levy for: inside the piston cylinder other end, axial retention is provided with a baffle ring structure (4), piston
The bar other end just passes this baffle ring structure and stretches out outside piston cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510047249.2A CN105987120B (en) | 2015-01-30 | 2015-01-30 | Two-way mechanical friction damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510047249.2A CN105987120B (en) | 2015-01-30 | 2015-01-30 | Two-way mechanical friction damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105987120A true CN105987120A (en) | 2016-10-05 |
| CN105987120B CN105987120B (en) | 2018-03-13 |
Family
ID=57036618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510047249.2A Expired - Fee Related CN105987120B (en) | 2015-01-30 | 2015-01-30 | Two-way mechanical friction damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105987120B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222734A (en) * | 2018-02-02 | 2018-06-29 | 昆山万马五金有限公司 | A kind of two-way mechanical friction damper and the vehicle using the damper |
| US12078004B2 (en) | 2021-02-09 | 2024-09-03 | Magna Automotive Parts (Suzhou) Co., Ltd. | Power strut with different rotational friction torque |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5257680A (en) * | 1991-12-20 | 1993-11-02 | Lord Corporation | Surface effect dampers having both hysteresis and a frictional component |
| KR100859353B1 (en) * | 2007-01-08 | 2008-09-19 | 양경택 | Shape Memory Alloy Friction Damper |
| CN202545672U (en) * | 2012-03-07 | 2012-11-21 | 贵州龙飞气弹簧有限责任公司 | Highly wear-resistant piston component for gas spring |
| CN103267079A (en) * | 2012-05-11 | 2013-08-28 | 青岛科而泰环境控制技术有限公司 | Friction type damper |
| CN203285897U (en) * | 2013-03-15 | 2013-11-13 | 尹学军 | Friction damper |
| CN204403264U (en) * | 2015-01-30 | 2015-06-17 | 昆山麦格纳汽车系统有限公司 | Two-way mechanical friction damper |
-
2015
- 2015-01-30 CN CN201510047249.2A patent/CN105987120B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5257680A (en) * | 1991-12-20 | 1993-11-02 | Lord Corporation | Surface effect dampers having both hysteresis and a frictional component |
| KR100859353B1 (en) * | 2007-01-08 | 2008-09-19 | 양경택 | Shape Memory Alloy Friction Damper |
| CN202545672U (en) * | 2012-03-07 | 2012-11-21 | 贵州龙飞气弹簧有限责任公司 | Highly wear-resistant piston component for gas spring |
| CN103267079A (en) * | 2012-05-11 | 2013-08-28 | 青岛科而泰环境控制技术有限公司 | Friction type damper |
| CN203285897U (en) * | 2013-03-15 | 2013-11-13 | 尹学军 | Friction damper |
| CN204403264U (en) * | 2015-01-30 | 2015-06-17 | 昆山麦格纳汽车系统有限公司 | Two-way mechanical friction damper |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222734A (en) * | 2018-02-02 | 2018-06-29 | 昆山万马五金有限公司 | A kind of two-way mechanical friction damper and the vehicle using the damper |
| US12078004B2 (en) | 2021-02-09 | 2024-09-03 | Magna Automotive Parts (Suzhou) Co., Ltd. | Power strut with different rotational friction torque |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105987120B (en) | 2018-03-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190212 Address after: No. 5 Ruizi Lane, Suzhou Industrial Park, Jiangsu Province, 215000 Patentee after: MAGNA AUTOMOTIVE PARTS (SUZHOU) CO.,LTD. Address before: 215300 No. 8 Third Avenue, Export Processing Zone A, Kunshan Development Zone, Suzhou City, Jiangsu Province Patentee before: KUNSHAN MAGNA AUTOMOBILE SYSTEM CO.,LTD. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180313 Termination date: 20220130 |
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| CF01 | Termination of patent right due to non-payment of annual fee |