CN103821868A - Damper with two-way throttle valves and air spring - Google Patents
Damper with two-way throttle valves and air spring Download PDFInfo
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- CN103821868A CN103821868A CN201410093626.1A CN201410093626A CN103821868A CN 103821868 A CN103821868 A CN 103821868A CN 201410093626 A CN201410093626 A CN 201410093626A CN 103821868 A CN103821868 A CN 103821868A
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Abstract
The invention discloses a damper with two-way throttle valves and an air spring. The air spring is arranged outside a dual-cylinder oil gas damper to form a composite damping structure; the dual-cylinder oil gas damper uses a piston with multiple two-way throttle valve structures on the basis of the traditional damper. The traditional dual-cylinder hydraulic damper is improved, and the throttle valves are additionally arranged on the work piston so as to realize the automatic control on the liquid flow; the dual-cylinder oil gas damper and the external air spring can synchronously bear a load by adjusting the rigidity of throttle valve springs, so the composite damping device with the true meaning is formed; the graded damping effect of the bag-type air spring with three air bags is achieved by adjusting the initial air pressure and the size of the air bags and the integral damping performance of the damper is improved; the energy loss of the damper is reduced by setting the throttle valves under the condition that the damping performance is not affected.
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 effect of vibration damper be transfer function in the force and moment at its two ends, and relax vibration that impulsive load, decay cause thus, guarantee running steadily, and reduce consequent dynamic load.
Existing mine car suspension fork mechanism still exists certain defect aspect damping property, the absorber damping force of its passive suspension adopting can not be adjusted with road conditions, between vehicle frame and vehicle bridge the serious impact of frequent, violent relative movement suspension effectiveness in vibration suppression and working life.In service in actual mining area, 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, the safety that threatens driver when mine car itself is caused to 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 pneumatic spring structure adopts three grades of pneumatic springs with capsule formula hollow structure, pneumatic spring is set in the outside of double barreled air oil shock absorber, pneumatic spring is to be made up of the first air bag, the second air bag and the 3rd air bag, the first air bag, the second air bag and the 3rd air bag stack together, on the first air bag, be placed with the first pad, between the first air bag and the second air bag, be folded with the second pad, between the second air bag and the 3rd air bag, be folded with the 3rd pad, the 3rd air bag bottom is 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, make pneumatic spring in the situation that of bearing load, there is the effect of classification vibration damping, and guarantee that compression direction is identical with the compression direction of middle double barreled air oil shock absorber, makes it to have the characteristic to the heart.
Described double barreled air oil shock absorber has used the piston with multiple bilateral throttle-valve structures on traditional vibration damper basis.The present embodiment is take multiple throttle valve as example.Double barreled air oil shock absorber is to be made up of urceolus, piston and inner core, and urceolus overlaps outer tube, and the center of urceolus is extended with piston rod, 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 position 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 changes and reset.Do the used time when overhead gage is subject to oil pressure, 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 two circulating directions of single throttle valve control equates with lower spring stiffness coefficient, and the mode that the upper spring of different throttle valve and lower spring stiffness coefficient circulate clockwise according to symmetry increases successively, making different throttle valve open required pressure increases successively, make double barreled air oil shock absorber there is the characteristic that damping characteristic changes with the oil pressure acting on piston, make it to have the effect of classification vibration damping, and do not produce the moment that makes piston upset.
Working principle of the present invention:
In the time that 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 the compressed amount of double barreled air oil shock absorber increases, 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 eight throttle valve are opened the situation that produces damping force simultaneously.The first air bag, the second air bag and the 3rd air bag of outside air spring is compressed to the air pressure level of the 3rd air bag of below simultaneously and is further compressed simultaneously, until pneumatic spring reaches theoretical maximum damping.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, on its working piston, adds throttle valve, realizes the automatic control to flow quantity;
Double barreled air oil shock absorber is by regulating the rigidity of throttle valve spring to make its and outside air spring can synchronize bearing load, formation combined vibration-damping device truly;
The described bellow type air spring with three air bags, by adjusting the initial gas pressure and the big or small effect that has made it to play classification vibration damping of air bag, has promoted vibration damper integral vibration damping performance;
The present invention has reduced the energy dissipation of vibration damper in the situation that not affecting damping property by arranging of throttle valve.
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.
Fig. 8 is double barreled air oil shock absorber piston rod throttle valve of the present invention schematic diagram while closing.
Schematic diagram when Fig. 9 is double barreled air oil shock absorber piston rod throttle valve unlatching of the present invention.
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; The 21-the first air bag 1; The 22-the second air bag 2; The 23-the three air bag 3; The 24-the first pad; The 25-the second pad; The 26-the three pad; The 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, has formed combined vibration-damping structure.
Consult Fig. 2, shown in Fig. 3 and Fig. 4, described pneumatic spring 2 structures adopt three grades of pneumatic springs with capsule formula 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, the second air bag 22 and the 3rd air bag 23 form, the first air bag 21, the second air bag 22 and the 3rd air bag 23 stack together, on the first air bag 21, be placed with the first pad 24, between the first air bag 21 and the second air bag 22, be folded with the second pad 25, between the second air bag 22 and the 3rd air bag 23, be folded with the 3rd pad 26, the 3rd air bag 23 bottoms are provided with the 4th pad 27.
Wherein 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, make pneumatic spring 2 in the situation that of bearing load, there is the effect of classification vibration damping, and guarantee that compression direction is identical with the compression direction of middle double barreled air oil shock absorber 1, makes it to have the characteristic to the heart.
Consult shown in Fig. 5, described double barreled air oil shock absorber 1 has used the piston 12 with multiple bilateral throttle-valve structures on traditional vibration damper basis.The present embodiment is take eight throttle valve as example.Double barreled air oil shock absorber 1 is to be made up of urceolus 11, piston 12 and inner core 13, urceolus 11 is enclosed within outside inner core 13, urceolus 11 center is extended with piston rod 14, piston rod 14 lower ends are 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 position 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 changes and reset.
Fig. 8 and Figure 9 shows that the working state under two kinds of different stressing conditions of throttle valve, does the used time when overhead gage 1221 is subject to oil pressure, and 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 is controlled two circulating directions equates with lower spring 1224 stiffness coefficients, and the upper spring 1222 of different throttle valve 126 increases successively with the mode that lower spring 1224 stiffness coefficients circulate clockwise according to symmetry, making different throttle valve 126 open required pressure increases successively, make double barreled air oil shock absorber 1 there is the characteristic that damping characteristic changes with the oil pressure acting on piston 12, make it to have the effect of classification vibration damping, and do not produce the moment that piston 12 is overturn.
The working principle of the present embodiment:
In the time that double barreled air oil shock absorber 1 is compressed, 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 the compressed amount of double barreled air oil shock absorber 1 increases, 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 eight throttle valve 126 are opened the situation that produces damping force simultaneously.The first air bag 21, the second air bag 22 and the 3rd air bag 23 of outside air spring 2 is compressed to the air pressure level of the 3rd air bag 23 of below simultaneously and is further compressed simultaneously, until pneumatic spring 2 reaches theoretical maximum damping.Double barreled air oil shock absorber 1 together provides damping force with pneumatic spring 2 as composite structure.
Claims (1)
1. a vibration damper with bilateral throttle valve and pneumatic spring, is characterized in that: it is, in the outside of double barreled air oil shock absorber (1), pneumatic spring (2) is installed, and forms 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), the second air bag (22) and the 3rd air bag (23) form, the first air bag (21), the second air bag (22) and the 3rd air bag (23) stack together, on the first air bag (21), be placed with the first pad (24), between the first air bag (21) and the second air bag (22), be folded with the second pad (25), between the second air bag (22) and the 3rd air bag (23), be folded with the 3rd pad (26), the 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 to be 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 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) position 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 single throttle valve (126) is controlled two circulating directions equates with lower spring (1224) stiffness coefficient, and the upper spring (1222) of different throttle valve (126) increases successively with the mode that lower spring (1224) stiffness coefficient circulates clockwise according to symmetry.
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 |
|---|---|
| CN103821868A true CN103821868A (en) | 2014-05-28 |
| CN103821868B CN103821868B (en) | 2015-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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| CN (1) | CN103821868B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642575A (en) * | 2017-11-02 | 2018-01-30 | 华东交通大学 | A kind of automobile Double-drum type shock absorber of high reliability |
| CN109869436A (en) * | 2019-03-27 | 2019-06-11 | 河南科技大学 | A kind of air vibration absorber for vegetable transplanting machine |
| CN110949080A (en) * | 2019-12-19 | 2020-04-03 | 安徽微威胶件集团有限公司 | Self-adaptive automobile suspension system |
| CN111043227A (en) * | 2019-12-19 | 2020-04-21 | 安徽微威胶件集团有限公司 | Shock insulation support of 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 |
| CN113623277A (en) * | 2021-10-12 | 2021-11-09 | 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 |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642575A (en) * | 2017-11-02 | 2018-01-30 | 华东交通大学 | A kind of automobile Double-drum type shock absorber of high reliability |
| 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 |
| CN110949080A (en) * | 2019-12-19 | 2020-04-03 | 安徽微威胶件集团有限公司 | Self-adaptive automobile suspension system |
| CN111043227A (en) * | 2019-12-19 | 2020-04-21 | 安徽微威胶件集团有限公司 | Shock insulation support of automobile suspension system |
| 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 |
| CN113623277A (en) * | 2021-10-12 | 2021-11-09 | 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103821868B (en) | 2015-09-23 |
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