CN103821868B - There is the vibration damper of bilateral throttle valve and pneumatic spring - Google Patents
There is the vibration damper of bilateral throttle valve and pneumatic spring Download PDFInfo
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- CN103821868B CN103821868B CN201410093626.1A CN201410093626A CN103821868B CN 103821868 B CN103821868 B CN 103821868B CN 201410093626 A CN201410093626 A CN 201410093626A CN 103821868 B CN103821868 B CN 103821868B
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- air bag
- throttle valve
- spring
- air
- piston
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Abstract
The invention discloses a kind of vibration damper with bilateral throttle valve and pneumatic spring, it is provided with pneumatic spring in the outside of double barreled air oil shock absorber, forms combined vibration-damping structure; Described double barreled air oil shock absorber employs the piston with multiple bilateral throttle-valve structures on traditional vibration damper basis.The present invention improves traditional double-cylinder hydraulic damper, and its working piston adds throttle valve, realizes the automatic control to flow quantity; Double barreled air oil shock absorber makes it can synchronous bearing load with outside air spring by regulating the rigidity of throttle valve spring, formation combined vibration-damping device truly; The described bellow type air spring with three air bags makes it by the initial gas pressure and size adjusting air bag the effect serving classification vibration damping, improves vibration damper integral vibration damping performance; The present invention reduces the energy dissipation of vibration damper by the setting of throttle valve when not affecting damping property.
Description
Technical field
The present invention relates to a kind of vibration damper, particularly a kind of vibration damper with bilateral throttle valve and pneumatic spring.
Background technique
The force and moment acting on its two ends is transmitted in the effect of vibration damper, and relax impulsive load, decay cause thus vibration, ensure the steady of running, and reduce consequent dynamic load.
Existing mine car suspension fork mechanism still also exists certain defect in damping property, the absorber damping force of its passive suspension adopted can not adjust with road conditions, and what relative movement frequent, violent between vehicle frame and vehicle bridge was serious have impact on suspension effectiveness in vibration suppression and working life.In actual mining area is run, due to the super large load of mine car and the road conditions of jolting in mining area, vehicle body widget often occurs mine car damages or the over worn situation of suspension system, threatens the safety of driver to mine car itself while causing damage.
Summary of the invention
The object of the invention is the defect for existing mine car suspension damping property, a kind of vibration damper with bilateral throttle valve and pneumatic spring that can be applicable to mine car front suspension is provided.
The present invention is provided with pneumatic spring in the outside of double barreled air oil shock absorber, forms combined vibration-damping structure.
Described air spring constructions adopts three grades of pneumatic springs with bellows hollow structure, pneumatic spring is set in the outside of double barreled air oil shock absorber, pneumatic spring is made up of the first air bag, the second air bag and the 3rd air bag, first air bag, the second air bag and the 3rd air bag stack together, the first pad is placed with on first air bag, the second pad is folded with between first air bag and the second air bag, be folded with the 3rd pad between second air bag and the 3rd air bag, bottom the 3rd air bag, be provided with the 4th pad; The initial Preliminary pressure-filled of the first air bag, the second air bag and the 3rd air bag from top to bottom increases progressively successively, the size of air bag increases successively, pneumatic spring is made to have the effect of classification vibration damping when bearing load, and ensure that compression direction is identical with the compression direction of middle double barreled air oil shock absorber, make it that there is the characteristic to the heart.
Described double barreled air oil shock absorber employs the piston with multiple bilateral throttle-valve structures on traditional vibration damper basis.The present embodiment is for multiple throttle valve.Double barreled air oil shock absorber is made up of urceolus, piston and inner core, and outer tube, the center of urceolus is extended with piston rod to urceolus cover, piston-rod lower end is fixed with piston, piston is arranged in inner core, and piston is provided with multiple throttle valve, and each throttle valve has identical bore;
Multiple throttle valve on described piston are positioned in throttle valve dunnage, and wherein throttle valve dunnage and upper end cap and lower end cap are positioned by two symmetrical locating studs, are fixedly connected with by eight equally distributed clamping bolts.
The through flow hole structure of described piston is made up of overhead gage, upper spring, supporting structure, lower spring and lower pedal, supporting structure is positioned at the neutral position of through flow hole structure, upper spring and lower spring are welded in the both sides of supporting structure, overhead gage is welded in the upside of upper spring, and lower pedal is welded in the downside of lower spring; Described overhead gage and the edge of lower pedal have trapezium structure, make overhead gage and lower pedal more easily open along with oil pressure change and reset.When overhead gage is subject to oil pressure effect, upper spring is compressed, and lower spring is stretched, and lower pedal moves downward, and throttle valve is opened, and produces damping.
The upper spring of single throttle valve control two circulating directions is equal with lower spring stiffness coefficient, and the upper spring of different throttle valve and lower spring stiffness coefficient increase successively according to the mode of symmetrical right-hand circular, pressure needed for the unlatching of different throttle valve is increased successively, double barreled air oil shock absorber is made to have the characteristic of damping characteristic with the oil pressure change acted on piston, namely make it the effect with classification vibration damping, and do not produce the moment that piston is overturn.
Working principle of the present invention:
When double barreled air oil shock absorber is compressed, minimum first throttle orifice of spring damping coefficient produces damping, and the first air bag of pneumatic spring is compressed, and both together provide damping force as composite structure.
Along with double barreled air oil shock absorber is increased by decrement, each throttle valve of double barreled air oil shock absorber is opened successively, and the damping of double barreled air oil shock absorber increases to maximum gradually, and namely the situation producing damping force opened by eight throttle valve simultaneously.First air bag of outside air spring, the second air bag and the 3rd air bag are compressed to the air pressure level of the 3rd air bag of bottom simultaneously and are further compressed, until pneumatic spring reaches theoretical maximum damping simultaneously.Double barreled air oil shock absorber and pneumatic spring together provide damping force as composite structure.
Beneficial effect of the present invention:
The present invention improves traditional double-cylinder hydraulic damper, and its working piston adds throttle valve, realizes the automatic control to flow quantity;
Double barreled air oil shock absorber makes it can synchronous bearing load with outside air spring by regulating the rigidity of throttle valve spring, formation combined vibration-damping device truly;
The described bellow type air spring with three air bags makes it by the initial gas pressure and size adjusting air bag the effect serving classification vibration damping, improves vibration damper integral vibration damping performance;
The present invention reduces the energy dissipation of vibration damper by the setting of throttle valve when not affecting damping property.
Accompanying drawing explanation
Fig. 1 is overall schematic of the present invention.
Fig. 2 is double barreled air oil shock absorber overall schematic of the present invention.
Fig. 3 is pneumatic spring overall schematic of the present invention.
Fig. 4 is double barreled air oil shock absorber sectional view of the present invention.
Fig. 5 is double barreled air oil shock absorber perspective exploded view of the present invention.
Fig. 6 is double barreled air oil shock absorber piston rod perspective exploded view of the present invention.
Fig. 7 is double barreled air oil shock absorber piston rod through flow hole structural representation of the present invention.
Schematic diagram when Fig. 8 is double barreled air oil shock absorber piston rod throttle valve of the present invention closedown.
Schematic diagram when Fig. 9 is double barreled air oil shock absorber piston rod throttle valve of the present invention unlatching.
Wherein: 1-double barreled air oil shock absorber; 11-urceolus; 12-piston; 121-upper end cap; 122-throttle valve dunnage; 1221-overhead gage; 1222-upper spring; 1223-supporting structure; 1224-lower spring; 1225-lower end cap; 123-lower end cap; 124-clamping bolt; 125-locating stud; 13-inner core; 14-piston rod; 2-pneumatic spring; 21-the first air bag 1; 22-the second air bag 2; 23-the three air bag 3; 24-the first pad; 25-the second pad; 26-the three pad; 27-the four pad.
Embodiment
Refer to shown in Fig. 1, the present invention is provided with pneumatic spring 2 in the outside of double barreled air oil shock absorber 1, defines combined vibration-damping structure.
Consult Fig. 2, shown in Fig. 3 and Fig. 4, described pneumatic spring 2 structure adopts three grades of pneumatic springs with bellows hollow structure, pneumatic spring 2 is set in the outside of double barreled air oil shock absorber 1, pneumatic spring 2 is by the first air bag 21, second air bag 22 and the 3rd air bag 23 are formed, first air bag 21, second air bag 22 and the 3rd air bag 23 stack together, the first pad 24 is placed with on first air bag 21, the second pad 25 is folded with between first air bag 21 and the second air bag 22, the 3rd pad 26 is folded with between second air bag 22 and the 3rd air bag 23, the 4th pad 27 is provided with bottom 3rd air bag 23.
Wherein the initial Preliminary pressure-filled of the first air bag 21, second air bag 22 and the 3rd air bag 23 from top to bottom increases progressively successively, the size of air bag increases successively, pneumatic spring 2 is made to have the effect of classification vibration damping when bearing load, and ensure that compression direction is identical with the compression direction of middle double barreled air oil shock absorber 1, make it that there is the characteristic to the heart.
Consult shown in Fig. 5, described double barreled air oil shock absorber 1 employs the piston 12 with multiple bilateral throttle-valve structure on traditional vibration damper basis.The present embodiment is for eight throttle valve.Double barreled air oil shock absorber 1 is made up of urceolus 11, piston 12 and inner core 13, urceolus 11 is enclosed within outside inner core 13, the center of urceolus 11 is extended with piston rod 14, piston rod 14 lower end is fixed with piston 12, piston 12 is arranged in inner core 13, piston 12 is provided with eight throttle valve 126, and each throttle valve 126 has identical bore;
Consult shown in Fig. 6, eight throttle valve 126 on described piston 12 are positioned in throttle valve dunnage 122, wherein throttle valve dunnage 122 and upper end cap 121 and lower end cap 123 are positioned by two symmetrical locating studs 125, are fixedly connected with by eight equally distributed clamping bolts 124.
Consult shown in Fig. 7, the through flow hole structure of described piston 12 is made up of overhead gage 1221, upper spring 1222, supporting structure 1223, lower spring 1224 and lower pedal 1225, supporting structure 1223 is positioned at the neutral position of through flow hole structure, upper spring 1222 and lower spring 1224 are welded in the both sides of supporting structure 1223, overhead gage 1221 is welded in the upside of upper spring 1222, and lower pedal 1225 is welded in the downside of lower spring 1224; Described overhead gage 1221 and the edge of lower pedal 1225 have trapezium structure, make overhead gage 1221 and lower pedal 1225 more easily open along with oil pressure change and reset.
Fig. 8 and the working state under Figure 9 shows that throttle valve two kinds of different stressing conditions, when overhead gage 1221 is subject to oil pressure effect, upper spring 1222 is compressed, and lower spring 1223 is stretched, and lower pedal 1224 moves downward, and throttle valve is opened, and produces damping.
The upper spring 1222 that single throttle valve 126 controls two circulating directions is equal with lower spring 1224 stiffness coefficient, and the upper spring 1222 of different throttle valve 126 and the mode of lower spring 1224 stiffness coefficient according to symmetrical right-hand circular increase successively, make different throttle valve 126 open required pressure to increase successively, double barreled air oil shock absorber 1 is made to have the characteristic of damping characteristic with the oil pressure change acted on piston 12, namely make it the effect with classification vibration damping, and do not produce the moment that piston 12 is overturn.
The working principle of the present embodiment:
When double barreled air oil shock absorber 1 is by compression, minimum first throttle orifice of spring damping coefficient produces damping, and the first air bag 21 of pneumatic spring 2 is compressed, and both together provide damping force as composite structure.
Along with double barreled air oil shock absorber 1 is increased by decrement, each throttle valve of double barreled air oil shock absorber 1 is opened successively, and the damping of double barreled air oil shock absorber 1 increases to maximum gradually, and namely the situation producing damping force opened by eight throttle valve 126 simultaneously.First air bag 21, second air bag 22 of outside air spring 2 and the 3rd air bag 23 are compressed to the air pressure level of the 3rd air bag 23 of bottom simultaneously and are further compressed, until pneumatic spring 2 reaches theoretical maximum damping simultaneously.Double barreled air oil shock absorber 1 and pneumatic spring 2 together provide damping force as composite structure.
Claims (1)
1. there is a vibration damper for bilateral throttle valve and pneumatic spring, it is characterized in that: it is provided with pneumatic spring (2) in the outside of double barreled air oil shock absorber (1), form combined vibration-damping structure;
Described pneumatic spring (2) is set in the outside of double barreled air oil shock absorber (1), pneumatic spring (2) is by the first air bag (21), second air bag (22) and the 3rd air bag (23) are formed, first air bag (21), second air bag (22) and the 3rd air bag (23) stack together, the first pad (24) is placed with on first air bag (21), the second pad (25) is folded with between first air bag (21) and the second air bag (22), the 3rd pad (26) is folded with between second air bag (22) and the 3rd air bag (23), 3rd air bag (23) bottom is provided with the 4th pad (27), the initial Preliminary pressure-filled of the first air bag (21), the second air bag (22) and the 3rd air bag (23) from top to bottom increases progressively successively, the size of air bag increases successively,
Described double barreled air oil shock absorber (1) is made up of urceolus (11), piston (12) and inner core (13), urceolus (11) is enclosed within inner core (13) outward, the center of urceolus (11) is extended with piston rod (14), piston rod (14) lower end is fixed with piston (12), piston (12) is arranged in inner core (13), piston (12) is provided with multiple throttle valve (126), and each throttle valve (126) has identical bore;
Multiple throttle valve (126) on described piston (12) are positioned in throttle valve dunnage (122), wherein throttle valve dunnage (122) and upper end cap (121) and lower end cap (123) are positioned by two symmetrical locating studs (125), are fixedly connected with by eight equally distributed clamping bolts (124);
The through flow hole structure of described piston (12) is made up of overhead gage (1221), upper spring (1222), supporting structure (1223), lower spring (1224) and lower pedal (1225), supporting structure (1223) is positioned at the neutral position of through flow hole structure, upper spring (1222) and lower spring (1224) are welded in the both sides of supporting structure (1223), overhead gage (1221) is welded in the upside of upper spring (1222), and lower pedal (1225) is welded in the downside of lower spring (1224); Described overhead gage (1221) and the edge of lower pedal (1225) have trapezium structure;
The upper spring (1222) that described each throttle valve (126) controls two circulating directions is equal with lower spring (1224) stiffness coefficient, and the upper spring (1222) of different throttle valve (126) increases successively with the mode of lower spring (1224) stiffness coefficient according to symmetrical right-hand circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410093626.1A CN103821868B (en) | 2014-03-13 | 2014-03-13 | There is the vibration damper of bilateral throttle valve and pneumatic spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410093626.1A CN103821868B (en) | 2014-03-13 | 2014-03-13 | There is the vibration damper of bilateral throttle valve and pneumatic spring |
Publications (2)
| Publication Number | Publication Date |
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| CN103821868A CN103821868A (en) | 2014-05-28 |
| CN103821868B true CN103821868B (en) | 2015-09-23 |
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|---|---|---|---|
| CN201410093626.1A Expired - Fee Related CN103821868B (en) | 2014-03-13 | 2014-03-13 | There is the vibration damper of bilateral throttle valve and pneumatic spring |
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| CN107642575B (en) * | 2017-11-02 | 2023-11-24 | 华东交通大学 | Automobile double-cylinder type shock absorber |
| CN109869436A (en) * | 2019-03-27 | 2019-06-11 | 河南科技大学 | A kind of air vibration absorber for vegetable transplanting machine |
| CN111043227B (en) * | 2019-12-19 | 2021-08-06 | 安徽微威胶件集团有限公司 | Shock insulation support of automobile suspension system |
| CN110949080B (en) * | 2019-12-19 | 2021-10-08 | 安徽微威胶件集团有限公司 | Self-adaptive automobile suspension system |
| CN112524193A (en) * | 2020-10-27 | 2021-03-19 | 温州大学 | Low-frequency vibration reduction and isolation system |
| CN112727943A (en) * | 2021-01-06 | 2021-04-30 | 泰州贺安特动力科技有限公司 | Novel synchronizer with rolling type sliding block |
| CN113623277B (en) * | 2021-10-12 | 2021-12-10 | 南通富飞尔机械科技有限公司 | Noise-reducing sleep-assisting type floor fan base and using method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08320047A (en) * | 1995-05-24 | 1996-12-03 | Mitsubishi Motors Corp | Suspension device |
| JP4046203B2 (en) * | 1997-09-26 | 2008-02-13 | 東洋ゴム工業株式会社 | Liquid enclosed air spring |
| CN103075456A (en) * | 2012-04-10 | 2013-05-01 | 住友电气工业株式会社 | Air spring |
| CN202991992U (en) * | 2012-11-15 | 2013-06-12 | 长春孔辉汽车科技有限公司 | Flexible interconnection shock absorber |
| CN203743286U (en) * | 2014-03-13 | 2014-07-30 | 吉林大学 | Shock absorber provided with double-pass throttle valves and air spring |
-
2014
- 2014-03-13 CN CN201410093626.1A patent/CN103821868B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08320047A (en) * | 1995-05-24 | 1996-12-03 | Mitsubishi Motors Corp | Suspension device |
| JP4046203B2 (en) * | 1997-09-26 | 2008-02-13 | 東洋ゴム工業株式会社 | Liquid enclosed air spring |
| CN103075456A (en) * | 2012-04-10 | 2013-05-01 | 住友电气工业株式会社 | Air spring |
| CN202991992U (en) * | 2012-11-15 | 2013-06-12 | 长春孔辉汽车科技有限公司 | Flexible interconnection shock absorber |
| CN203743286U (en) * | 2014-03-13 | 2014-07-30 | 吉林大学 | Shock absorber provided with double-pass throttle valves and air spring |
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| CN103821868A (en) | 2014-05-28 |
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Granted publication date: 20150923 Termination date: 20160313 |