CN105673757A - Gas spring and noise reduction piston assembly thereof - Google Patents
Gas spring and noise reduction piston assembly thereof Download PDFInfo
- Publication number
- CN105673757A CN105673757A CN201610221744.5A CN201610221744A CN105673757A CN 105673757 A CN105673757 A CN 105673757A CN 201610221744 A CN201610221744 A CN 201610221744A CN 105673757 A CN105673757 A CN 105673757A
- Authority
- CN
- China
- Prior art keywords
- piston
- external diameter
- plastic frame
- noise reduction
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
- F16F9/0209—Telescopic
- F16F9/0227—Telescopic characterised by the piston construction
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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
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
- F16F9/0209—Telescopic
- F16F9/0281—Details
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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
- F16F9/366—Special sealings, including sealings or guides for piston-rods functioning as guide only, e.g. bushings
- F16F9/367—Special sealings, including sealings or guides for piston-rods functioning as guide only, e.g. bushings allowing misalignment of the 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
- F16F9/36—Special sealings, including sealings or guides for piston-rods
- F16F9/368—Sealings in 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
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/12—Fluid damping
- F16F2222/126—Fluid damping using gases
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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
- F16F2230/00—Purpose; Design features
- F16F2230/30—Sealing arrangements
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention relates to a gas spring and a noise reduction piston assembly thereof. The gas spring comprises a piston rod, a piston and a cylinder. The piston is arranged at one end of the piston rod and located in the cylinder. A seal ring of the piston is in clearance fit with the cylinder. The piston is sequentially provided with a damping gasket, the seal ring, a plastic lining ring and an oil leakage gasket from one end of the piston rod to the middle of the piston rod. The outer diameter of the seal ring is the largest. The outer diameter of the damping gasket is larger than the outer diameter of the oil leakage gasket. The outer diameter of the plastic lining ring is between the outer diameter of the damping gasket and the outer diameter of the seal ring in size. According to the gas spring and the noise reduction piston assembly, the seal ring is in clearance fit with the cylinder, and the sealing performance of the seal ring is ensured; by adding the plastic lining ring, the outer diameter of the plastic lining ring is between the outer diameter of the damping gasket and the outer diameter of the seal ring in size; when the coaxiality of the piston rod and the cylinder deviates, the plastic lining ring and the cylinder rub, and it is avoided that the damping gasket and the cylinder rub to produce abnormal sounds.
Description
Technical field
The present invention relates to a kind of air spring and can noise reduction piston component.
Background technology
Air spring, is a kind of using gas and liquid as the flexible member of working media, is mainly made up of the piston in cylinder barrel, cylinder barrel and piston rod and fairlead etc. In cylinder barrel, storage has gas and part fluid, occupies the volume in cylinder barrel due to piston, and during work in piston rod press-in cylinder barrel, piston makes the fluid in axially-movable extrusion chamber in cylinder barrel, and fluid compresses gas and makes piston reach operating position. After loading the disappearance of external force on the piston rod, then gas restores and expands, and the gas push fluid of expansion makes piston reset, is removed by piston rod, makes air spring realize compression and moves and restore damped motion.
Wherein, piston is provided with sealing ring coordinate with bore clearances, when piston rod promotes piston to do axially-movable in cylinder barrel, owing to cannot ensure that between piston rod and cylinder barrel, axiality, the sealing ring of piston and cylinder barrel often produce abnormal sound and noise because of friction completely.
Summary of the invention
The technical problem to be solved in the present invention is: in order to overcome the deficiency that can produce abnormal sound and noise between piston and cylinder barrel, and the present invention provides a kind of air spring and can noise reduction piston component.
The technical solution adopted for the present invention to solve the technical problems is: a kind of air spring is with can noise reduction piston component, including piston and piston rod, described piston is arranged on one end of piston rod, described piston is disposed with damping washer, sealing ring, plastic frame and race lubricating pad circle from the end of piston rod to piston rod, the largest outside diameter of described sealing ring, the external diameter of described damping washer is more than the external diameter running lubricating pad circle, and the external diameter of described plastic frame is between the external diameter and the external diameter of described sealing ring of described damping washer.
The material of described plastic frame is politef.
The external diameter 0.1mm-0.5mm bigger than the external diameter of damping washer of described plastic frame.
The external diameter 0.3mm bigger than the external diameter of damping washer of described plastic frame.
Having clearance ring between described damping washer and plastic frame, described sealing ring is located at described clearance ring periphery, and has gap between sealing ring and clearance ring; Described damping washer has a through hole, described plastic frame has breach and the lug of spaced setting, described race lubricating pad circle has opening and catch, described opening and catch interval and arranges, and described opening connects with described breach.
Described plastic frame offers 6 breach uniform along plastic frame periphery, described race lubricating pad circle offers 4 along running the opening that lubricating pad circle periphery is uniform, the size of opening described in the size > of described breach, only have 2 breach being oppositely arranged and 2 open communication, all the other breach are hidden by described catch, and all the other openings are hidden by described lug.
A kind of air spring, has piston component and cylinder barrel, and described piston component is piston component of the present invention, and the piston in described piston component is positioned at cylinder barrel, and the sealing ring of piston coordinates with bore clearances.
The invention has the beneficial effects as follows, the air spring of the present invention and can noise reduction piston component, sealing ring coordinates with bore clearances, while ensureing the sealing property of sealing ring, add plastic frame so that the external diameter of plastic frame is between the external diameter and the external diameter of sealing ring of damping washer, when deviation occurs the axiality of piston rod with cylinder barrel, rubbed by plastic frame and cylinder barrel, and prevent damping washer and cylinder barrel from occurring friction to produce abnormal sound.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of the air spring optimum embodiment of the present invention.
Fig. 2 is the structural representation of the plastic frame optimum embodiment in the present invention.
Fig. 3 is the structural representation running lubricating pad circle optimum embodiment in the present invention.
In figure 1, piston, 2, piston rod, 3, damping washer, 3-1, through hole, 4, sealing ring, 5, plastic frame, 5-1, breach, 5-2, lug, 6, run lubricating pad circle, 6-1, opening, 6-2, catch, 7, clearance ring, 8, cylinder barrel.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation. These accompanying drawings are the schematic diagram of simplification, and the basic structure of the present invention is only described in a schematic way, and therefore it only shows the composition relevant with the present invention.
As it is shown in figure 1, a kind of air spring of the present invention, having piston rod 2, piston 1 and cylinder barrel 8, described piston 1 is arranged on one end of piston rod 2, and piston 1 is positioned at cylinder barrel 8, sealing ring 4 and cylinder barrel 8 matched in clearance of described piston 1.
Described piston 1 is disposed with damping washer 3, sealing ring 4, plastic frame 5 and runs lubricating pad circle 6 from the end of piston rod 2 to piston rod 2, and the material of described plastic frame 5 is politef.
The largest outside diameter of described sealing ring 4, the external diameter of described damping washer 3 is more than the external diameter running lubricating pad circle 6, and the external diameter of described plastic frame 5 is between the external diameter and the external diameter of described sealing ring 4 of described damping washer 3. The external diameter 0.1mm-0.5mm bigger than the external diameter of damping washer 3 of described plastic frame 5. In the present embodiment, the external diameter of described plastic frame 5 is 19.8mm, and the external diameter of damping washer 3 is 19.5mm.
Having clearance ring 7 between described damping washer 3 and plastic frame 5, described sealing ring 4 ring is located at described clearance ring 7 periphery, and has gap between sealing ring 4 and clearance ring 7; Described damping washer 3 has a through hole 3-1.
As shown in Figure 2 and Figure 3, described plastic frame 5 has the breach 5-1 and lug 5-2 of spaced setting, described race lubricating pad circle 6 has opening 6-1 and catch 6-2, described opening 6-1 and catch 6-2 interval is arranged, and described opening 6-1 connects with described breach 5-1.
Specifically, described plastic frame 5 offers 6 breach 5-1s uniform along plastic frame 5 periphery, described race lubricating pad circle 6 offers 4 along running the opening 6-1 that lubricating pad circle 6 periphery is uniform, the size of opening 6-1 described in the size > of described breach 5-1, only have 2 breach 5-1 and 2 opening 6-1 connections being oppositely arranged, all the other breach 5-1 is hidden by described catch 6-2, and all the other openings 6-1 is hidden by described lug 5-2.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not necessarily departing from this invention technological thought, can carry out various change and amendment completely. The technical scope of this invention is not limited to the content in description, it is necessary to determine its technical scope according to right.
Claims (7)
1. an air spring is with can noise reduction piston component, including piston (1) and piston rod (2), described piston (1) is arranged on one end of piston rod (2), it is characterized in that: from the end of piston rod (2) to piston rod (2), middle part is disposed with damping washer (3) to described piston (1), sealing ring (4), plastic frame (5) and race lubricating pad circle (6), the largest outside diameter of described sealing ring (4), the external diameter of described damping washer (3) is more than the external diameter running lubricating pad circle (6), the external diameter of described plastic frame (5) is between the external diameter and the external diameter of described sealing ring (4) of described damping washer (3).
2. air spring as claimed in claim 1 is with can noise reduction piston component, it is characterised in that: the material of described plastic frame (5) is politef.
3. air spring as claimed in claim 1 is with can noise reduction piston component, it is characterised in that: the external diameter 0.1mm-0.5mm bigger than the external diameter of damping washer (3) of described plastic frame (5).
4. air spring as claimed in claim 3 is with can noise reduction piston component, it is characterised in that: the external diameter 0.3mm bigger than the external diameter of damping washer (3) of described plastic frame (5).
5. air spring as claimed in claim 1 is with can noise reduction piston component, it is characterized in that: there is between described damping washer (3) and plastic frame (5) clearance ring (7), described sealing ring (4) ring is located at described clearance ring (7) periphery, and has gap between sealing ring (4) and clearance ring (7); Described damping washer (3) has a through hole (3-1), described plastic frame (5) has breach (5-1) and the lug (5-2) of spaced setting, described race lubricating pad circle (6) has opening (6-1) and catch (6-2), described opening (6-1) and catch (6-2) interval are arranged, and described opening (6-1) connects with described breach (5-1).
6. air spring as claimed in claim 5 is with can noise reduction piston component, it is characterized in that: described plastic frame (5) offers 6 breach (5-1) uniform along plastic frame (5) periphery, described race lubricating pad circle (6) offers 4 along running the opening (6-1) that lubricating pad circle (6) periphery is uniform, the size of opening (6-1) described in the size > of described breach (5-1), only have 2 breach being oppositely arranged (5-1) to connect with 2 openings (6-1), all the other breach (5-1) are hidden by described catch (6-2), all the other openings (6-1) are hidden by described lug (5-2).
7. an air spring, there is piston component and cylinder barrel (8), it is characterized in that: described piston component is the piston component as according to any one of claim 1-6, piston (1) in described piston component is positioned at cylinder barrel (8), the sealing ring (4) of piston (1) and cylinder barrel (8) matched in clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610221744.5A CN105673757A (en) | 2016-04-11 | 2016-04-11 | Gas spring and noise reduction piston assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610221744.5A CN105673757A (en) | 2016-04-11 | 2016-04-11 | Gas spring and noise reduction piston assembly thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105673757A true CN105673757A (en) | 2016-06-15 |
Family
ID=56308907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610221744.5A Pending CN105673757A (en) | 2016-04-11 | 2016-04-11 | Gas spring and noise reduction piston assembly thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105673757A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630964A (en) * | 2017-09-20 | 2018-01-26 | 周根元 | A kind of hydraulic damper |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2577045Y (en) * | 2002-08-29 | 2003-10-01 | 刘焕文 | Pressure-reducing air spring |
| ES2255844B1 (en) * | 2004-11-23 | 2007-07-16 | Gain Gas Technique, S.L. | "ELEVATION GAS CYLINDER". |
| CN201071896Y (en) * | 2007-07-20 | 2008-06-11 | 隆昌山川减振器工业有限公司 | Air spring piston |
| WO2009054444A1 (en) * | 2007-10-25 | 2009-04-30 | Nifco Inc. | Damper and door handle with the same |
| CN103352896A (en) * | 2013-07-16 | 2013-10-16 | 安吉宏峰气弹簧科技有限公司 | Telescopic structure unit and telescopic rod composed of same |
| CN203770513U (en) * | 2014-03-21 | 2014-08-13 | 河北隆昌汽车零部件有限公司 | Grooved damping fin for gas spring |
| CN104632977A (en) * | 2015-01-30 | 2015-05-20 | 常州市达文电动车辆配件厂 | Air pressure damping mechanism and air pressure damping shock absorber with the same |
| CN205479077U (en) * | 2016-04-11 | 2016-08-17 | 常州气弹簧有限公司 | Air spring and degradable piston assembly that makes an uproar thereof |
-
2016
- 2016-04-11 CN CN201610221744.5A patent/CN105673757A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2577045Y (en) * | 2002-08-29 | 2003-10-01 | 刘焕文 | Pressure-reducing air spring |
| ES2255844B1 (en) * | 2004-11-23 | 2007-07-16 | Gain Gas Technique, S.L. | "ELEVATION GAS CYLINDER". |
| CN201071896Y (en) * | 2007-07-20 | 2008-06-11 | 隆昌山川减振器工业有限公司 | Air spring piston |
| WO2009054444A1 (en) * | 2007-10-25 | 2009-04-30 | Nifco Inc. | Damper and door handle with the same |
| CN103352896A (en) * | 2013-07-16 | 2013-10-16 | 安吉宏峰气弹簧科技有限公司 | Telescopic structure unit and telescopic rod composed of same |
| CN203770513U (en) * | 2014-03-21 | 2014-08-13 | 河北隆昌汽车零部件有限公司 | Grooved damping fin for gas spring |
| CN104632977A (en) * | 2015-01-30 | 2015-05-20 | 常州市达文电动车辆配件厂 | Air pressure damping mechanism and air pressure damping shock absorber with the same |
| CN205479077U (en) * | 2016-04-11 | 2016-08-17 | 常州气弹簧有限公司 | Air spring and degradable piston assembly that makes an uproar thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630964A (en) * | 2017-09-20 | 2018-01-26 | 周根元 | A kind of hydraulic damper |
| CN107630964B (en) * | 2017-09-20 | 2023-08-11 | 肇庆市维德亚科技有限公司 | Hydraulic damper |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160615 |