CN105202092A - Driven type particle damping shock absorber for railway vehicle - Google Patents
Driven type particle damping shock absorber for railway vehicle Download PDFInfo
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- CN105202092A CN105202092A CN201510660872.5A CN201510660872A CN105202092A CN 105202092 A CN105202092 A CN 105202092A CN 201510660872 A CN201510660872 A CN 201510660872A CN 105202092 A CN105202092 A CN 105202092A
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Abstract
The invention discloses a driven type particle damping shock absorber for a railway vehicle, and belongs to the technical field of vehicle shock absorption. The driven type particle damping shock absorber comprises an upper cover plate type connector, a lower cover plate type connector, a rubber spherical hinge, a pin shaft, a circular spring, a shell, shock absorption particles and the like. Column bodies are spliced and welded to form the shell. The shock absorption particles accounting for 50-70% of the size of the shell are arranged in the shell. The upper connector is fixedly connected with one end of the shell through a shock absorption piece. The lower connector is welded to the other end of the shell. The rubber spherical hinge and the pin shaft are assembled. The shock absorber and a bogie are connected together after the requirement that a framework has certain rigidity and displacement relative to an axle box is met. The circular spring has certain rigidity as the elastic element and is pressed between end plates of the upper connector and the lower connector. Vibration energy is consumed through collision and friction between the particles and between the particles and the boundary, and the driven type particle damping shock absorber is simple in structure, is basically not influenced by temperature and is high in reliability.
Description
Technical field
The present invention relates to rail vehicle field, a kind of passive type particle damped vibration attenuation device used for rail vehicle.
Background technique
Particle damped vibration attenuation device is a kind of vibration damper grown up on particle damping basis, there is the features such as simple and reliable for structure, quality is light, cost is low, damping is very remarkable, be mainly used in Passive Control field, especially at the industrial field of some bad environments.
Hot-short existing one is some shortcomings that vertical damping shock absorber has below: 1 sealing requirements is high, may occur leakage of oil after service time is long; 2. pair by a narrow margin the vibration of high frequency or amplitude low-frequency can not control effectively, in particular cases may affect riding comfort; 3. price is higher, and manufacturing process is loaded down with trivial details, and environmental pollution is large, does not meet the macro-goal that national energy-saving reduces discharging; 4. oil pressure damping shock absorber dependence on import, cause cost of production to rise, economic benefit is low.5. the power consumption impact of external temperature on hydraulic damper is comparatively large, and when temperature is higher, damping significantly reduces.
For the problems referred to above, design cost of production low, good in economic efficiency, environmental suitability vibration damper that is high and good damping result is the Focal point and difficult point of work.
Summary of the invention
Target of the present invention be to provide a kind of rational in infrastructure, good endurance, reliability are high, the used for rail vehicle passive type particle damped vibration attenuation device low to temperature sensitivity, are vertical damping shock absorber in order to replace existing one.
The one passive type particle damped vibration attenuation used for rail vehicle device that the present invention proposes, comprise shell, rubber interlayer, vibration damping particle and coil spring, described shell vertical is arranged, hierachical structure is adopted in it, be furnished with some rubber interlayers from top to bottom, between neighbouring rubber interlayer, be provided with gap, in described rubber interlayer cavity, be furnished with vibration damping particle, shell one end is cemented in upper connection by clasp, and the other end welds with lower contact; The outer wall of shell is suppressed with coil spring; By the vibrational energy of the friction between vibration damping particle and between vibration damping particle and rubber interlayer inwall and collision effect consumption systems, reach vibration damping object.When initial excited frequency is large, due to collision effect, between vibration damping particle and between vibration damping particle and rubber interlayer inwall, momentum transfer occurs, kinetic transformation becomes heat energy; And when initial excited frequency is lower, to rub as main power consumption form between vibration damping particle and between vibration damping particle and rubber interlayer inwall, to reach the object of oscillation damping and energy dissipating.
In the present invention, described rubber interlayer is column type structure, and shell is cylindrical structure, described rubber interlayer and shell coaxially arranged.
In the present invention, the spring parameter of coil spring and is journal box spring parameter coordination, not only appropriateness can reduce a journal box spring rigidity, can increase again the stability of whole bogie.
In the present invention, described upper connection or lower contact are provided with rubber bushing, described rubber bushing is pressed into upper connection or lower contact by precompressed mode, described two rubber bushings are connected with axle box seating and framework fitting seat respectively by bearing pin, by the connection of rubber bushing, be not only between axle box and framework and certain allowable displacement is provided, slow down the vibration & noise of joint further yet.
In the present invention, the attribute such as kind, quantity, size of described vibration damping particle can be placed according to different vehicle truth, kind to comprise in plastics, rubber or metal etc. more than one, in each rubber interlayer, the 50-80% of the quantity duty cavity volume of vibration damping particle, its diameter is 0.1mm-5mm, produces different dampening range, makes it have larger Applicable scope.
In the present invention, shell and the upper head joint that connects are provided with rubber damping sheet, avoided the direct collision of shell and upper connection, reduce and impact by rubber damping sheet.
In the present invention, upper connection adopts circular limited post, and restriction housing radial-play, makes its axial displacement at 0-20mm.
In the present invention, after described vibration damping particle loads rubber interlayer, rubber interlayer opening part arranges cover plate, adopts welding sealing.
The present invention has following beneficial effect:
(1) passive type particle damped vibration attenuation device used for rail vehicle of the present invention, simple and reliable for structure, and good damping result, adaptability is high, compensate for the shortcoming of traditional oils pressure damper.
(2) passive type particle damped vibration attenuation device used for rail vehicle of the present invention, belongs to the vibration damper of maintenance-free type, easy accessibility, and through long-time running, losing efficacy may appear in rubber bushing, directly changes ball pivot.
Accompanying drawing explanation
Fig. 1 is passive type particle damped vibration attenuation device schematic diagram used for rail vehicle;
In Fig. 1: 1, upper connection, 2, rubber bushing, 3, bearing pin, 4, rubber damping sheet, 5, clasp, 6, rubber interlayer, 7, shell, 8, coil spring, 9, vibration damping particle, 10, lower contact;
Fig. 2 is shell of the present invention, rubber interlayer, coil spring and vibration damping granular structure relation schematic diagram;
In Fig. 2: 6, rubber interlayer, 7, shell, 8, coil spring, 9, vibration damping particle;
Fig. 3 is upper connection of the present invention, clasp, rubber damping sheet and shell mechanism relation schematic diagram;
In Fig. 3: 1, upper connection, 4, rubber damping sheet, 5, clasp, 7, shell.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Embodiment 1: a kind of passive type particle damped vibration attenuation device used for rail vehicle, and as shown in Figure 1, Figure 2 and Figure 3, comprise shell 7, it is cylindrical that described shell 7 adopts composite damping steel plate to make, and be divided into upper and lower two cavitys in it, described cavity is rubber interlayer 6; Rubber interlayer 6 is arranged in shell 7 cavity, is interference fit; Vibration damping particle 9, the vibration damping particle 9 that volume ratio is 50-70% is loaded in each rubber interlayer 6, the selection of its parameter will be determined according to actual vehicle situation, and Vehicular vibration environment is more violent and complicated, can to be selected in steel ball, shot or other Metal Ball more than one, and viscoelastic material particle or non-metallic particle can be added simultaneously, adopt its plastic deformation consumed energy in collision process, cover steel plate more afterwards, welding seals; Shell 7 one end is welded with lower contact 10, and shell 7 the other end is cemented in upper connection 1 by clasp 5, and shell 7 and upper connection 1 joint are placed with rubber damping sheet 4, avoids shell 7 and the direct collision of upper connection 1, reduce and impact by rubber damping sheet 4; Coil spring 8 adopts Special spring Steel material to make, be placed in the middle of upper connection 1, lower contact 10 end plate by the mode of compacting, the selection of its parameter needs according to vehicle one to be other vehicle reference comprehensive selection such as journal box spring and secondary spring, ensure vehicle stability, stability and Security when, the vibration of the minimizing vehicle of maximum possible, and under rubber bushing failure conditions, ensure the performance of damper; Rubber bushing 2, is pressed in upper connection and lower contact respectively by precompressed mode, then is connected with axle box seating and framework fitting seat respectively by bearing pin 3, and its rubber material proportioning, according to vehicle actual demand, will meet rigidity and the rigidity requirement of all directions.
Working principle of the present invention:
In passive type particle damped vibration attenuation device oscillation damping and energy dissipating process, by filling vibration damping particle in the constrained space in oscillating body, utilize the vibrational energy of friction between vibration damping particle and between particle and damping wall and collision effect consumption systems, reach vibration damping object.When initial excited frequency is large, due to collision effect, between particle and between particle and damping wall, momentum transfer occurs, kinetic transformation becomes heat energy.And when initial excited frequency is lower, to rub as main power consumption form between particle and between particle and damping wall, to reach the object of oscillation damping and energy dissipating.
Above-mentioned is only preferred version of the present invention, and those skilled in the art's some changes on this basis, also should belong to the protection domain of this patent.
Claims (7)
1. a passive type particle damped vibration attenuation device used for rail vehicle, it is characterized in that comprising shell, rubber interlayer, vibration damping particle and coil spring, described shell vertical is arranged, hierachical structure is adopted in it, be furnished with some rubber interlayers from top to bottom, between neighbouring rubber interlayer, be provided with gap, in described rubber interlayer cavity, be furnished with vibration damping particle, shell one end is cemented in upper connection by clasp, and the other end welds with lower contact; The outer wall of shell is suppressed with coil spring; By the vibrational energy of the friction between vibration damping particle and between vibration damping particle and rubber interlayer inwall and collision effect consumption systems, reach vibration damping object; When initial excited frequency is large, due to collision effect, between vibration damping particle and between vibration damping particle and rubber interlayer inwall, momentum transfer occurs, kinetic transformation becomes heat energy; And when initial excited frequency is lower, to rub as main power consumption form between vibration damping particle and between vibration damping particle and rubber interlayer inwall, to reach the object of oscillation damping and energy dissipating.
2. passive type particle damped vibration attenuation device used for rail vehicle according to claim 1, it is characterized in that described rubber interlayer is column type structure, shell is cylindrical structure, described rubber interlayer and shell coaxially arranged.
3. passive type particle damped vibration attenuation device used for rail vehicle according to claim 1, it is characterized in that the spring parameter and of coil spring is journal box spring parameter coordination, not only appropriateness can reduce a journal box spring rigidity, the stability of whole bogie can be increased again.
4. passive type particle damped vibration attenuation device used for rail vehicle according to claim 1, it is characterized in that described upper connection or lower contact are provided with rubber bushing, described rubber bushing is pressed into upper connection or lower contact by precompressed mode, described two rubber bushings are connected with axle box seating and framework fitting seat respectively by bearing pin, by the connection of rubber bushing, be not only between axle box and framework and certain allowable displacement is provided, slow down the vibration & noise of joint further yet.
5. passive type particle damped vibration attenuation device used for rail vehicle according to claim 1, it is characterized in that the kind of described vibration damping particle, quantity, size attribute can be placed according to different vehicle truth, kind to comprise in plastics, rubber or metal more than one, in each rubber interlayer, the 50-80% of the quantity duty cavity volume of vibration damping particle, its diameter is 0.1mm-5mm, produces different dampening range, makes it have larger Applicable scope.
6. passive type particle damped vibration attenuation device used for rail vehicle according to claim 1, be is characterized in that shell and the upper head joint that connects are provided with rubber damping sheet, is avoided the direct collision of shell and upper connection, reduce and impact by rubber damping sheet.
7. passive type particle damped vibration attenuation device used for rail vehicle according to claim 1, is characterized in that upper connection adopts circular limited post, and restriction housing radial-play, makes its axial displacement at 0-20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510660872.5A CN105202092A (en) | 2015-10-15 | 2015-10-15 | Driven type particle damping shock absorber for railway vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510660872.5A CN105202092A (en) | 2015-10-15 | 2015-10-15 | Driven type particle damping shock absorber for railway vehicle |
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| CN105202092A true CN105202092A (en) | 2015-12-30 |
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| CN201510660872.5A Pending CN105202092A (en) | 2015-10-15 | 2015-10-15 | Driven type particle damping shock absorber for railway vehicle |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889383A (en) * | 2016-06-30 | 2016-08-24 | 青岛理工大学 | Self-balancing train wheel and method based on powder vibration and noise reduction |
| CN105952837A (en) * | 2016-07-14 | 2016-09-21 | 同济大学 | Compound vibration isolating device based on air spring and particle damping material |
| CN107131246A (en) * | 2017-06-08 | 2017-09-05 | 江苏大学 | A kind of compound vibration-damper |
| CN108215755A (en) * | 2016-12-13 | 2018-06-29 | 福特全球技术公司 | For the particle damper assembly of vehicle |
| CN111022547A (en) * | 2019-12-18 | 2020-04-17 | 东莞理工学院 | Particle damping track vibration damper based on mortise and tenon connection |
| CN111914356A (en) * | 2020-07-30 | 2020-11-10 | 中车唐山机车车辆有限公司 | Vibration damping supporting device, rail vehicle and train floor area vibration isolation design method |
| US11215235B2 (en) | 2017-03-07 | 2022-01-04 | Siemens Aktiengesellschaft | Coupling element having vibration damping |
| CN114458712A (en) * | 2022-02-25 | 2022-05-10 | 西南交通大学 | Subway floating plate broadband shock absorber based on particle damping |
| CN114753495A (en) * | 2022-03-03 | 2022-07-15 | 上海尤安建筑设计股份有限公司 | Steel reinforced concrete column steel beam node |
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| US2239113A (en) * | 1939-03-27 | 1941-04-22 | Union Asbestos & Rubber Co | Cushioning device |
| CN101597925A (en) * | 2009-06-19 | 2009-12-09 | 北京工业大学 | Built-in particle type tuning and frictional impact energy-consumption damper |
| CN202493618U (en) * | 2012-03-05 | 2012-10-17 | 北京工业大学 | Partition type lamination particle damper |
| CN203500367U (en) * | 2013-09-18 | 2014-03-26 | 隆鑫通用动力股份有限公司 | Rear shock absorber for motorcycle |
| CN204025491U (en) * | 2014-07-31 | 2014-12-17 | 天津天德减震器有限公司 | Electric vehicle changes the rear shock absorber band main assemblage of spring of performance force value |
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2015
- 2015-10-15 CN CN201510660872.5A patent/CN105202092A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2239113A (en) * | 1939-03-27 | 1941-04-22 | Union Asbestos & Rubber Co | Cushioning device |
| CN101597925A (en) * | 2009-06-19 | 2009-12-09 | 北京工业大学 | Built-in particle type tuning and frictional impact energy-consumption damper |
| CN202493618U (en) * | 2012-03-05 | 2012-10-17 | 北京工业大学 | Partition type lamination particle damper |
| CN203500367U (en) * | 2013-09-18 | 2014-03-26 | 隆鑫通用动力股份有限公司 | Rear shock absorber for motorcycle |
| CN204025491U (en) * | 2014-07-31 | 2014-12-17 | 天津天德减震器有限公司 | Electric vehicle changes the rear shock absorber band main assemblage of spring of performance force value |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889383A (en) * | 2016-06-30 | 2016-08-24 | 青岛理工大学 | Self-balancing train wheel and method based on powder vibration and noise reduction |
| CN105952837A (en) * | 2016-07-14 | 2016-09-21 | 同济大学 | Compound vibration isolating device based on air spring and particle damping material |
| CN108215755A (en) * | 2016-12-13 | 2018-06-29 | 福特全球技术公司 | For the particle damper assembly of vehicle |
| US11215235B2 (en) | 2017-03-07 | 2022-01-04 | Siemens Aktiengesellschaft | Coupling element having vibration damping |
| CN107131246A (en) * | 2017-06-08 | 2017-09-05 | 江苏大学 | A kind of compound vibration-damper |
| CN111022547A (en) * | 2019-12-18 | 2020-04-17 | 东莞理工学院 | Particle damping track vibration damper based on mortise and tenon connection |
| CN111022547B (en) * | 2019-12-18 | 2022-03-22 | 东莞理工学院 | Particle damping track vibration damper based on mortise and tenon connection |
| CN111914356A (en) * | 2020-07-30 | 2020-11-10 | 中车唐山机车车辆有限公司 | Vibration damping supporting device, rail vehicle and train floor area vibration isolation design method |
| CN111914356B (en) * | 2020-07-30 | 2023-08-08 | 中车唐山机车车辆有限公司 | Vibration reduction supporting device, railway vehicle and train floor area vibration isolation design method |
| CN114458712A (en) * | 2022-02-25 | 2022-05-10 | 西南交通大学 | Subway floating plate broadband shock absorber based on particle damping |
| CN114753495A (en) * | 2022-03-03 | 2022-07-15 | 上海尤安建筑设计股份有限公司 | Steel reinforced concrete column steel beam node |
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