CN205298388U - Damping air spring - Google Patents
Damping air spring Download PDFInfo
- Publication number
- CN205298388U CN205298388U CN201521134992.3U CN201521134992U CN205298388U CN 205298388 U CN205298388 U CN 205298388U CN 201521134992 U CN201521134992 U CN 201521134992U CN 205298388 U CN205298388 U CN 205298388U
- Authority
- CN
- China
- Prior art keywords
- chamber
- damping
- piston
- air spring
- seal 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.)
- Expired - Fee Related
Links
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses a damping air spring belongs to air spring technical field. The utility model discloses a damping air spring, including cylinder, damping piston and piston rod, piston rod and damping piston fixed connection, damping piston are located in the cylinder and are divide into A chamber and B chamber with the cylinder, and the A chamber be no pole chamber, and the B chamber is equipped with floating seal ring and damping hole for there being the pole chamber on the damping piston, and the damping hole communicates A chamber and B chamber, and the aperture in damping hole is increased to the B chamber by the A chamber, the B intracavity still is equipped with one, a on spring intracavity and still is equipped with spring no. 2. The utility model discloses utilize the combined action of damping piston and damping spring, move the in -process at the piston rod and form the damping action, make the air spring all have good damping force when compressing and kick -back, play good cushioning effect, built -in damping spring can reduce charged pressure, still can continue to use after gas leakage is become invalid, simultaneously, simple structure, the processing preparation is convenient, and preparation low cost has extensive application prospect.
Description
Technical field
This utility model relates to a kind of air spring, more particularly, it relates to a kind of damping air spring.
Background technology
The invention of gas spring technology and application thereof have the history of decades, and the air spring that market is sold is of a great variety, and it is mainly made up of the piston in cylinder barrel, cylinder barrel and piston rod etc. During work, in piston rod press-in cylinder barrel, piston makes axially-movable extruding fluid in cylinder barrel, and fluid makes piston reach operating position by compressing gas; 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.
At present, the piston damping hole of existing air spring realizes folding by valve rod, thus realizing the damping action of air spring, this air spring not only structure is complex, cost of manufacture is higher, and all parts required precision is higher, and the damping resilience effect in piston damping hole is not ideal enough.
Summary of the invention
1. utility model to solve the technical problem that
The purpose of this utility model is in that to overcome existing air spring above shortcomings, a kind of damping air spring is provided, adopt the technical solution of the utility model, utilize the combined effect of damping piston and damping spring, piston rod moving process is formed damping action, make air spring be respectively provided with good damping force when compression and resilience, play good cushioning effect; Built-in damping spring can reduce the blowing pressure, may continue to use after air leakage failure; Meanwhile, simple in construction, processing and fabricating is convenient, and cost of manufacture is cheap, is with a wide range of applications.
2. technical scheme
For reaching above-mentioned purpose, the technical scheme that this utility model provides is:
A kind of damping air spring of the present utility model, including cylinder barrel, damping piston and piston rod, described piston rod is fixing with damping piston to be connected, described damping piston is located in cylinder barrel and cylinder barrel is divided into A chamber and B chamber, A chamber is rodless cavity, and B chamber is rod chamber, and described damping piston is provided with floating seal ring and damping hole, described damping hole connection A chamber and B chamber, and the aperture of damping hole is by the increase of A chamber to B chamber;When A chamber is compressed, floating seal ring floats to B cavity direction, make damping piston open near the gap between the sidewall and the inwall of cylinder barrel in A chamber, and be connected with damping hole, and then make the resisting medium in A chamber flow into B chamber formation damping force through damping hole and above-mentioned gap; When B chamber is compressed, floating seal ring floats to A cavity direction, makes damping piston near the clearance seal between the sidewall and the inwall of cylinder barrel in A chamber, and then makes the resisting medium in B chamber flow into A chamber formation damping force through damping hole; Described B intracavity is additionally provided with spring one, and described A intracavity is additionally provided with spring two.
Further, described damping piston includes piston main body and tabletting, described piston main body is provided with the mounting groove for installing floating seal ring, and described piston main body and tabletting are installed on piston rod successively, make floating seal ring between piston main body and tabletting.
Further, described damping piston is fixing on the piston rod by the die or nut being located at piston rod one end.
Further, described A intracavity is additionally provided with separator piston, and A chamber is divided into A' chamber and A by this separator piston " chamber, described A " chamber between A' chamber and B chamber, described A " intracavity is provided with spring two, described A' intracavity is provided with spring three.
Further, described separator piston being additionally provided with floating seal ring and pore, described floating seal ring is located in the sealing ring mounting groove of separator piston, and described pore connects above-mentioned sealing ring mounting groove and A' chamber; When floating seal ring with cylinder barrel motion to A " chamber float time, floating seal ring is by A' chamber and A " chamber isolation; When floating seal ring floats to A' chamber with cylinder barrel motion, A' chamber and A " it is connected by the gap between pore and separator piston with cylinder barrel between chamber.
Further, the described floating seal ring in separator piston is made up of polytetrafluoroethylmaterial material mold pressing.
Further, one end of described cylinder barrel is additionally provided with the inflation inlet in connection A' chamber.
Further, described resisting medium is gas or gas mixture.
Further, one end that described cylinder barrel matches with piston rod is provided with oil sealing and guide, and described oil sealing is positioned at the inside of guide, and oil sealing is spacing by the positive stop lug boss taken shape in inner wall of cylinder.
3. beneficial effect
The technical scheme adopting this utility model to provide, compared with existing known technology, has the advantages that
(1) a kind of damping air spring of the present utility model, it utilizes the effect of floating seal ring and damping hole, makes damping piston have good damping force in movement, makes piston rod move more steady, and buffering effect is better; Effect in combination with damping spring, it is possible to reduce the blowing pressure, makes air spring be respectively provided with good damping when compression and resilience, has the damping effect of excellence, and may continue to after air leakage failure use;
(2) a kind of damping air spring of the present utility model, its damping piston includes piston main body and tabletting, piston main body is provided with the mounting groove for installing floating seal ring, and piston main body and tabletting are installed on piston rod successively, make floating seal ring between piston main body and tabletting; Damping piston is fixing on the piston rod by the die or nut being located at piston rod one end; Being not only convenient for the installation of floating seal ring, and process easy to assembly, make efficiency is higher, and cost of manufacture is low;
(3) a kind of damping air spring of the present utility model, its A intracavity is additionally provided with separator piston, A chamber is divided into A' chamber and A by this separator piston " chamber; A " intracavity is provided with spring two, A' intracavity is provided with spring three, make air spring operationally at A' chamber and A " chamber is formed two kinds of pressure; in air spring compression and springback process; separator piston can play good hardness adjustment effect; improves buffering effect further; and can effectively prevent from causing air spring to lose efficacy because of leakage, the service life of raising air spring;
(4) a kind of damping air spring of the present utility model, its separator piston is additionally provided with floating seal ring and pore, and floating seal ring is located in the sealing ring mounting groove of separator piston, and pore connects above-mentioned sealing ring mounting groove and A' chamber; When floating seal ring with cylinder barrel motion to A " chamber float time, floating seal ring is by A' chamber and A " chamber isolation, make A' cavity pressure increase; When floating seal ring floats to A' chamber with cylinder barrel motion, A' chamber and A " be connected by the gap between pore and separator piston with cylinder barrel between chamber, make A' chamber to A " intracavity pressure release and arrive pressure balance; Adopt this separator piston to achieve constant voltage and the pressurization of air spring, further increase compression and the resilience effect of air spring;
(5) a kind of damping air spring of the present utility model, the floating seal ring in its separator piston is made up of polytetrafluoroethylmaterial material mold pressing, and wearability is good, and can effectively prevent floating seal ring stuck;
(6) a kind of damping air spring of the present utility model, its simple in construction, processing and fabricating is convenient, and cost of manufacture is cheap, is with a wide range of applications.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of damping air spring of this utility model embodiment 1;
Fig. 2 is the structural representation of a kind of damping air spring of this utility model embodiment 2 and embodiment 3.
Label declaration in schematic diagram:
1, cylinder barrel; 11, positive stop lug boss; 12, inflation inlet; 2, damping piston; 21, piston main body; 22, tabletting; 23, floating seal ring; 24, damping hole; 3, piston rod; 4, oil sealing; 5, guide; 6, spring one; 7, spring two; 8, separator piston; 81, floating seal ring; 82, pore; 9, spring three.
Detailed description of the invention
For further appreciating that content of the present utility model, in conjunction with the accompanying drawings and embodiments this utility model is described in detail.
Embodiment 1
Shown in Fig. 1, a kind of damping air spring of the present embodiment, including cylinder barrel 1, damping piston 2 and piston rod 3, piston rod 3 is fixing with damping piston 2 to be connected, damping piston 2 is located in cylinder barrel 1 and cylinder barrel 1 is divided into A chamber and B chamber, and wherein A chamber is rodless cavity, and B chamber is rod chamber. In the present embodiment, damping piston 2 is provided with floating seal ring 23 and damping hole 24, damping hole 24 connects A chamber and B chamber, and the aperture of damping hole 24 is increased by A chamber to B chamber, and the aperture of the damping hole 24 being namely connected with A chamber is less than the aperture of the damping hole 24 being connected with B chamber; When A chamber is compressed (compression process), under frictional resistance effect, floating seal ring 23 floats to B cavity direction under the effect of cylinder barrel 1, the gap between the damping piston 2 sidewall near A chamber and the inwall of cylinder barrel 1 is made to open, and be connected with damping hole 24, and then gap between sidewall and the cylinder barrel 1 near A chamber flows into B chamber through damping hole 24 and damping piston 2 to make the resisting medium in A chamber, because resisting medium is flowed into macropore by aperture and piston clearance two parts and formed damping force; In like manner, when B chamber is compressed (springback process), floating seal ring 23 floats to A cavity direction, make the clearance seal between the damping piston 2 sidewall near A chamber and the inwall of cylinder barrel 1, and then making the resisting medium in B chamber can only flow into A chamber formation damping force through damping hole 24, it is achieved the damping force of compression process is less than the damping force of springback process; Further, being additionally provided with spring 1 at B intracavity, A intracavity is additionally provided with spring 27, utilizes floating seal ring 23 and the effect of damping hole 24, makes damping piston 2 have good damping force in movement, makes piston rod 3 move more steady, and buffering effect is better;Effect in combination with spring 1 and spring 27, damping piston 2 can quickly recover to poised state, air spring is made to be respectively provided with good damping when compression and resilience, there is the damping effect of excellence, and after adopting damping spring, the blowing pressure can be reduced, may continue to after air leakage failure use.
As shown in Figure 1, damping piston 2 in the present embodiment includes piston main body 21 and tabletting 22, piston main body 21 is provided with the mounting groove for installing floating seal ring 23, piston main body 21 and tabletting 22 are installed on piston rod 3 successively, make floating seal ring 23 between piston main body 21 and tabletting 22, the damping hole 24 of mounting groove with connection A chamber in order to make floating seal ring 23 communicates, piston main body 21 is additionally provided with the breach for dodging damping hole 24, make floating seal ring 23 when floating to B cavity direction, the resisting medium of A intracavity can flow into damping hole 24 from the gap between tabletting 22 and cylinder barrel 1 inwall and enter B intracavity, form compression damping power. additionally, above-mentioned damping piston 2 is fixed on piston rod 3 by the die or nut being located at piston rod 3 one end, namely damping piston 2 can directly be riveted on piston rod 3, for the ease of changing damping piston 2, it is also possible to utilize nut to be fixed on piston rod 3 by damping piston 2. adopting above-mentioned damping piston 2 structure, be not only convenient for the installation of floating seal ring 23, and process easy to assembly, make efficiency is higher, and cost of manufacture is low.
In addition, one end that cylinder barrel 1 in the present embodiment matches with piston rod 3 is provided with oil sealing 4 and guide 5, oil sealing 4 is positioned at the inside of guide 5, and oil sealing 4 is spacing by the positive stop lug boss 11 taken shape on cylinder barrel 1 inwall, guide 5 can directly be fixed to in-flanges by the nozzle of cylinder barrel 1, not only seal guide effect good, and make very convenient, reduce cost of manufacture. In the present embodiment, resisting medium can be gas or gas mixture, when resisting medium is gas mixture, it is only necessary to increased accordingly in the aperture of damping hole 24, makes the neither too hard, nor too soft of air spring.
Embodiment 2
Shown in Fig. 2, a kind of damping air spring of the present embodiment, its basic structure is with embodiment 1, it is different in that: the A intracavity in the present embodiment is additionally provided with separator piston 8, A chamber is divided into A' chamber and A by this separator piston 8 " chamber, A " chamber is between A' chamber and B chamber, A " intracavity is provided with spring 27, A' intracavity is provided with spring 39, make air spring operationally at A' chamber and A " chamber is formed two kinds of pressure, in air spring compression and springback process, separator piston 8 can play good hardness adjustment effect, improve buffering effect further, and can effectively prevent from causing air spring to lose efficacy because of resisting medium leakage, improve the service life of air spring.
Embodiment 3
Shown in Fig. 2, a kind of damping air spring of the present embodiment, its basic structure is with embodiment 2, it is different in that: the separator piston 8 in the present embodiment is additionally provided with floating seal ring 81 and pore 82, floating seal ring 81 is located in the sealing ring mounting groove of separator piston 8, and pore 82 connects above-mentioned sealing ring mounting groove and A' chamber; When floating seal ring 81 moves to A with cylinder barrel 1 " chamber float time, floating seal ring 81 is by A' chamber and A " chamber isolation; When floating seal ring 81 moves with cylinder barrel 1 and to float to A' chamber, A' chamber and A " it is connected by the gap between pore 82 and separator piston 8 with cylinder barrel 1 between chamber. What so arrange specifically act as: shown in Figure 2, when cylinder barrel is pressed for 1 time, floating seal ring 81 with cylinder barrel 1 to A " chamber floats and lived by the clearance seal between separator piston 8 bottom and cylinder barrel 1 inwall, now the pressure of A' intracavity cannot be introduced into A " chamber, and then make the pressure of A' intracavity increase;When cylinder barrel 1 is lifted, floating seal ring 81 floats to A' chamber with cylinder barrel 1 and is opened in the gap between separator piston 8 bottom and cylinder barrel 1 inwall, now the pressure of A' intracavity runs past pore 82 and flows into A with above-mentioned gap " chamber and pressure release; and then make A' chamber and A " pressure of intracavity is equal, served the effect of constant voltage and supercharging by floating seal ring 81, further increase compression and the resilience effect of air spring.
Additionally, in the present embodiment, the floating seal ring 81 in separator piston 8 is made up of polytetrafluoroethylmaterial material mold pressing, and not only wearability is good, long service life, and it is stuck effectively to prevent floating seal ring 81 from snapping in the gap between separator piston 8 and cylinder barrel 1. One end of cylinder barrel 1 is additionally provided with the inflation inlet 12 in connection A' chamber, it is simple to be inflated for air spring, it is to avoid return the trouble of factory's inflation.
A kind of damping air spring of the present utility model, utilizes the combined effect of damping piston and damping spring, forms damping action in piston rod moving process, makes air spring be respectively provided with good damping force when compression and resilience, plays good cushioning effect; Built-in damping spring can reduce the blowing pressure, may continue to use after air leakage failure; Meanwhile, simple in construction, processing and fabricating is convenient, and cost of manufacture is cheap, is with a wide range of applications.
Below schematically this utility model and embodiment thereof being described, this description does not have restricted, and shown in accompanying drawing is also one of embodiment of the present utility model, and actual structure is not limited thereto. So, if those of ordinary skill in the art is enlightened by it, when creating objective without departing from this utility model, without creatively designing the frame mode similar to this technical scheme and embodiment, protection domain of the present utility model all should be belonged to.
Claims (9)
1. a damping air spring, including cylinder barrel (1), damping piston (2) and piston rod (3), described piston rod (3) is fixing with damping piston (2) to be connected, described damping piston (2) is located in cylinder barrel (1) and cylinder barrel (1) is divided into A chamber and B chamber, A chamber is rodless cavity, B chamber is rod chamber, it is characterized in that: described damping piston (2) is provided with floating seal ring (23) and damping hole (24), described damping hole (24) connection A chamber and B chamber, and the aperture of damping hole (24) is increased by A chamber to B chamber, when A chamber is compressed, floating seal ring (23) floats to B cavity direction, the damping piston (2) gap between sidewall and the inwall of cylinder barrel (1) in A chamber is made to open, and be connected with damping hole (24), and then the resisting medium in A chamber is made to flow into B chamber formation damping force through damping hole (24) and above-mentioned gap, when B chamber is compressed, floating seal ring (23) floats to A cavity direction, make the damping piston (2) clearance seal between sidewall and the inwall of cylinder barrel (1) in A chamber, and then make the resisting medium in B chamber flow into A chamber formation damping force through damping hole (24), described B intracavity is additionally provided with spring one (6), and described A intracavity is additionally provided with spring two (7).
2. a kind of damping air spring according to claim 1, it is characterized in that: described damping piston (2) includes piston main body (21) and tabletting (22), described piston main body (21) is provided with the mounting groove for installing floating seal ring (23), described piston main body (21) and tabletting (22) are installed on piston rod (3) successively, make floating seal ring (23) be positioned between piston main body (21) and tabletting (22).
3. a kind of damping air spring according to claim 2, it is characterised in that: described damping piston (2) is fixed on piston rod (3) by the die or nut being located at piston rod (3) one end.
4. a kind of damping air spring according to claim 1 or 2 or 3, it is characterized in that: described A intracavity is additionally provided with separator piston (8), A chamber is divided into A' chamber and A by this separator piston (8) " chamber; described A " chamber is between A' chamber and B chamber, described A " intracavity is provided with spring two (7), and described A' intracavity is provided with spring three (9).
5. a kind of damping air spring according to claim 4, it is characterized in that: described separator piston (8) is additionally provided with floating seal ring (81) and pore (82), described floating seal ring (81) is located in the sealing ring mounting groove of separator piston (8), and described pore (82) connects above-mentioned sealing ring mounting groove and A' chamber; When floating seal ring (81) with cylinder barrel (1) motion to A " chamber float time, floating seal ring (81) is by A' chamber and A " chamber isolation; When floating seal ring (81) floats to A' chamber with cylinder barrel (1) motion, A' chamber and A " it is connected by the gap between pore (82) and separator piston (8) with cylinder barrel (1) between chamber.
6. a kind of damping air spring according to claim 5, it is characterised in that: the described floating seal ring (81) in separator piston (8) is made up of polytetrafluoroethylmaterial material mold pressing.
7. a kind of damping air spring according to claim 6, it is characterised in that: one end of described cylinder barrel (1) is additionally provided with the inflation inlet (12) in connection A' chamber.
8. a kind of damping air spring according to claim 7, it is characterised in that: described resisting medium is gas or gas mixture.
9. a kind of damping air spring according to claim 8, it is characterized in that: one end that described cylinder barrel (1) matches with piston rod (3) is provided with oil sealing (4) and guide (5), described oil sealing (4) is positioned at the inside of guide (5), and oil sealing (4) is spacing by the positive stop lug boss (11) taken shape on cylinder barrel (1) inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521134992.3U CN205298388U (en) | 2015-12-31 | 2015-12-31 | Damping air spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521134992.3U CN205298388U (en) | 2015-12-31 | 2015-12-31 | Damping air spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205298388U true CN205298388U (en) | 2016-06-08 |
Family
ID=56469108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521134992.3U Expired - Fee Related CN205298388U (en) | 2015-12-31 | 2015-12-31 | Damping air spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205298388U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106275395A (en) * | 2016-08-10 | 2017-01-04 | 张琬彬 | A kind of unmanned plane buffer gear |
| CN108087486A (en) * | 2017-12-28 | 2018-05-29 | 上海精星仓储设备工程有限公司 | The hydraulically-damped protective device of spring and shuttle |
| CN108119600A (en) * | 2017-12-26 | 2018-06-05 | 常州大学 | The intelligent buffer device that a kind of rigidity vibration isolation is automatically switched with damping buffering |
| CN110397693A (en) * | 2019-07-10 | 2019-11-01 | 北京磊焱氮气弹簧技术研究所 | One kind filling constant force controlling type Oil-gas Separation gas spring power device again |
-
2015
- 2015-12-31 CN CN201521134992.3U patent/CN205298388U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106275395A (en) * | 2016-08-10 | 2017-01-04 | 张琬彬 | A kind of unmanned plane buffer gear |
| CN108119600A (en) * | 2017-12-26 | 2018-06-05 | 常州大学 | The intelligent buffer device that a kind of rigidity vibration isolation is automatically switched with damping buffering |
| CN108087486A (en) * | 2017-12-28 | 2018-05-29 | 上海精星仓储设备工程有限公司 | The hydraulically-damped protective device of spring and shuttle |
| CN108087486B (en) * | 2017-12-28 | 2023-08-04 | 上海精星仓储设备工程有限公司 | Spring hydraulic buffer protection device and shuttle |
| CN110397693A (en) * | 2019-07-10 | 2019-11-01 | 北京磊焱氮气弹簧技术研究所 | One kind filling constant force controlling type Oil-gas Separation gas spring power device again |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205298375U (en) | Gas spring damping bumper shock absorber | |
| CN205298388U (en) | Damping air spring | |
| CN203532914U (en) | Electromagnetic valve for automobile pneumatic AMT gear shifting executing mechanism | |
| CN202402514U (en) | Master cylinder of clutch | |
| CN207777604U (en) | Novel pressure tank | |
| CN204458961U (en) | Air buffer | |
| CN212564695U (en) | Waterproof hammer buffering angle valve | |
| CN205172926U (en) | Sealed piston | |
| CN2913770Y (en) | Venting escape valve | |
| CN216812906U (en) | Low-voltage electromagnetic valve | |
| CN208281420U (en) | A kind of telescopic system device | |
| CN202220898U (en) | Hydraulic damping device for valve | |
| CN203979515U (en) | A kind of valve pocket axial flow type check valve | |
| CN101943276B (en) | Combined air valve | |
| CN201582115U (en) | Novel scroll compressor | |
| CN202252058U (en) | Two-way sealing structure for sleeve of sleeve adjusting valve | |
| CN204511863U (en) | A kind of Novel air exchanging plug | |
| CN201269345Y (en) | Gas-fluid type piston valve | |
| CN201103307Y (en) | Fluid buffer for furniture | |
| CN203656337U (en) | Combined valve execution device | |
| CN206409724U (en) | A kind of electric-controlled gas valve | |
| CN205190910U (en) | Smart small -size quick action emergency valve | |
| CN204004523U (en) | Upper dress formula full-bore semispherical valve | |
| CN201180794Y (en) | Air-controlled direct-acting valve | |
| CN203257794U (en) | Hydraulic pneumatic mechanism of cushion cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20211231 |