CN110439946A - Equipment quasi-zero stiffness vibration isolators under a kind of railway vehicle truck - Google Patents
Equipment quasi-zero stiffness vibration isolators under a kind of railway vehicle truck Download PDFInfo
- Publication number
- CN110439946A CN110439946A CN201910692580.8A CN201910692580A CN110439946A CN 110439946 A CN110439946 A CN 110439946A CN 201910692580 A CN201910692580 A CN 201910692580A CN 110439946 A CN110439946 A CN 110439946A
- Authority
- CN
- China
- Prior art keywords
- disk spring
- mounting seat
- equipment
- under
- upper mounting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
- F16F3/08—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber
- F16F3/10—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2224/00—Materials; Material properties
- F16F2224/02—Materials; Material properties solids
- F16F2224/025—Elastomers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
- F16F2228/06—Stiffness
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2230/00—Purpose; Design features
- F16F2230/0041—Locking; Fixing in position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2230/00—Purpose; Design features
- F16F2230/04—Lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2238/00—Type of springs or dampers
- F16F2238/02—Springs
- F16F2238/022—Springs leaf-like, e.g. of thin, planar-like metal
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Vibration Prevention Devices (AREA)
- Springs (AREA)
Abstract
The present invention relates to equipment quasi-zero stiffness vibration isolators under a kind of railway vehicle truck, including disk spring, rubber spring, disk spring upper mounting seat and disk spring lower mounting seat, wherein: disk spring upper mounting seat is used to connect by transverse and longitudinal vibration isolating mechanism with equipment installation end under vehicle, disk spring lower mounting seat with car body installation end for being fixedly connected, disk spring both ends are fixedly connected with disk spring upper mounting seat and disk spring lower mounting seat respectively, rubber spring is in parallel with disk spring, and the both ends of the rubber spring are fixedly connected with disk spring upper mounting seat and disk spring lower mounting seat respectively.Compared with prior art, the configuration of the present invention is simple, compact, production, easy for installation, anti-vibration performance is good, can be effectively isolated low-frequency vibration.
Description
Technical field
The present invention relates to low frequency vibration isolation fields, more particularly, to equipment quasi-zero stiffness vibration isolators under a kind of railway vehicle truck.
Background technique
With the application of rail truck power decentralized technology, need for the equipment such as transformer, air compressor machine, dirt box to be hung on
Below car body, great several tons of some equipment, or even driving source is also had, if Rig up error, vibration equipment may be transferred to vehicle
Body influences vehicle smoothness, and equipment resilient hanger generallys use rubber spring under railway vehicle truck at present, is managed according to vibration isolation
By rubber spring rigidity is lower, and vibration isolation initial frequency is lower, is more conducive to that low-frequency vibration is isolated.But if rigidity is too low, meeting
Cause natural bow excessive, it is excessive so as to cause deflection the problems such as.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide under a kind of railway vehicle truck
Equipment quasi-zero stiffness vibration isolators.
The purpose of the present invention can be achieved through the following technical solutions:
Equipment quasi-zero stiffness vibration isolators under a kind of railway vehicle truck, comprising:
Disk spring upper mounting seat, for being connect by transverse and longitudinal vibration isolating mechanism with equipment installation end under vehicle,
Disk spring lower mounting seat, for being fixedly connected with car body installation end,
Disk spring, both ends are fixedly connected with disk spring upper mounting seat and disk spring lower mounting seat respectively,
Rubber spring, it is in parallel with disk spring, and the both ends of the rubber spring respectively with disk spring upper mounting seat and dish
Shape spring lower mounting seat is fixedly connected.
Preferably, the transverse and longitudinal vibration isolating mechanism includes mounting ring and rubber ring, and the mounting ring is fixed under vehicle
Equipment installation end, and be sheathed on outside disk spring upper mounting seat, for the upper end of support disk spring upper mounting seat, and make dish
Spring upper mounting seat relative to mounting ring can horizontal and vertical activity, the rubber ring be filled in the medial surface of mounting ring with
Between the upper end lateral surface of disk spring upper mounting seat.
Preferably, lubricant layer is additionally provided between equipment installation end under the disk spring upper mounting seat and vehicle.
Preferably, disk spring upper mounting seat is fixedly connected with outer ring one end of disk spring, disk spring lower mounting seat
It is fixedly connected with inner ring one end of disk spring.
Preferably, upward, outer ring one end is downward for inner ring one end of the disk spring.
Preferably, the ratio of height to thickness of the disk spring is greater than
Preferably, the disk spring obtains standard after the negative stiffness of equilbrium position is superimposed with rubber spring vertical stiffness
Zero stiffness.
Preferably, natural bow of the vertical stiffness of the rubber spring under load capacity and common rubber natural bow phase
When.
Preferably, disk spring is provided about negative stiffness in operating point.
The present invention is directed to equipment under railway vehicle truck and proposes, it is therefore intended that reduces vibration equipment under railway vehicle truck, isolation
Active equipment vibrates under vehicle, and active equipment vibration is prevented to be transferred to car body, working principle are as follows:
It is in parallel with rubber spring using the negative stiffness characteristic of disk spring, it is quasi- to design equipment under a kind of railway vehicle truck
Zero-rigidity vibration isolator.Disk spring, rubber spring parameter designing step are as follows: firstly, design rubber spring, makes its vertical stiffness exist
Natural bow under load capacity is suitable with common rubber natural bow；Then, disk spring is designed, makes it in the negative rigid of equilbrium position
Degree obtains quasi- zero stiffness after being superimposed with rubber spring vertical stiffness；Finally, designing upper disk spring upper end mounting base, disk spring
Lower end mounting base and mounting ring keep rubber spring in parallel with disk spring, and between disk spring upper end mounting base and framework
Lubricant layer, rubber ring are designed, so that disk spring is only provided vertical stiffness, vibration isolator is longitudinally, laterally provided by rubber ring.
The present invention makes the reduction of damper lateral stiffness by lubricant layer, to adjust lateral stiffness, reaches optimization laterally
The effect of damping property.
Compared with prior art, the invention has the following advantages:
(1) structure type in parallel with rubber spring using the disk spring for providing negative stiffness, makes disk spring vertical
Rigidity obtains quasi- zero stiffness after being superimposed with rubber spring, to realize that (disk spring provides negative rigid quasi- zero stiffness in vibration processes
Degree, it is in parallel with the rubber spring for providing positive rigidity, form quasi- zero stiffness vibration insulation structure), so that vibration isolator is can be effectively reduced equipment
It is transferred to the vibration of car body, to reduce body oscillating, provides running stability.
(2) the configuration of the present invention is simple, compact, production, easy for installation, anti-vibration performance is good.
Detailed description of the invention
Fig. 1 be the embodiment of the present invention 1 railway vehicle truck under equipment quasi-zero stiffness vibration isolators structural schematic diagram；
Fig. 2 is the simulation result comparison diagram that damper of the present invention and rubber shock absorber are installed on equipment under vehicle.
In figure, 1 be disk spring, 2 be rubber spring, 3 be disk spring upper end mounting base, 4 be disk spring lower end peace
Dress seat, 5 be equipment installation end under vehicle, 6 be car body installation end, 7 be lubricant layer, 8 be rubber ring, 9 be mounting ring.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Under a kind of railway vehicle truck on equipment quasi-zero stiffness vibration isolators, including disk spring 1, rubber spring 2, disk spring
Mounting base 3 and disk spring lower mounting seat 4, in which: disk spring upper mounting seat 3 is used for by under transverse and longitudinal vibration isolating mechanism and vehicle
Equipment installation end 5 connects, and disk spring lower mounting seat 4 with car body installation end 6 for being fixedly connected, 1 both ends of disk spring difference
It is fixedly connected with disk spring upper mounting seat 3 and disk spring lower mounting seat 4, rubber spring 2 is in parallel with disk spring 1, and should
The both ends of rubber spring 2 are fixedly connected with disk spring upper mounting seat 3 and disk spring lower mounting seat 4 respectively.
In the present embodiment, transverse and longitudinal vibration isolating mechanism includes mounting ring 9 and rubber ring 8, and mounting ring 9, which is fixed on equipment under vehicle, pacifies
End 5 is filled, and is sheathed on outside disk spring upper mounting seat 3, for the upper end of support disk spring upper mounting seat 3, and makes dish-shaped bullet
Spring upper mounting seat 3 relative to mounting ring 9 can horizontal and vertical activity, rubber ring 8 be filled in mounting ring 9 medial surface and dish
Between the upper end lateral surface of spring upper mounting seat 3.Further, under disk spring upper mounting seat 3 and vehicle equipment installation end 5 it
Between be additionally provided with lubricant layer 7.
In the present embodiment, disk spring upper mounting seat 3 is fixedly connected with outer ring one end of disk spring 1, under disk spring
Mounting base 4 is fixedly connected with inner ring one end of disk spring 1.Preferred disk spring upper mounting seat 3 and dish-shaped bullet in the present embodiment
The groove to match with disk spring 1 is equipped with the junction of disk spring 1 in spring lower mounting seat 4.Disk spring upper mounting seat 3
It is cylindrical with the main part of disk spring lower mounting seat 4.In the present embodiment, inner ring one end of disk spring 1 upward, outer ring
One end is downward.In this example, the ratio of height to thickness of further preferred disk spring 1 is greater than
Design procedure are as follows: firstly, design rubber spring 2, makes natural bow of its vertical stiffness under load capacity and commonly use
Rubber natural bow is suitable；Then, disk spring 1 is designed, keeps it folded in the negative stiffness and 2 vertical stiffness of rubber spring of equilbrium position
Quasi- zero stiffness is obtained after adding；Finally, design disk spring upper end mounting base 3, disk spring lower end mounting base 4 and mounting ring 9, make
Rubber spring 2 is in parallel with disk spring 1, and lubricant layer 7, rubber ring are designed between disk spring upper end mounting base 3 and framework
8, so that disk spring 1 is only provided vertical stiffness, vibration isolator is longitudinally, laterally provided by rubber ring 8.
Fig. 2 is that rubber elastic element vibration isolator and quasi- zero stiffness of the invention is respectively adopted in active equipment under high-speed train
Under vibration isolator, body oscillating acceleration simulation as a result, be car body floor time domain vibration acceleration as shown in the figure.As can be seen that with
Rubber elastic element is compared, and the quasi-zero stiffness vibration isolators that this patent proposes can preferably reduce body oscillating, to improve vehicle
Running stability.
The above-mentioned description to embodiment is for ease of ordinary skill in the art to understand and use the invention.It is ripe
The personnel for knowing art technology obviously easily can make various modifications to these embodiments, and general original described herein
It ought to use in other embodiments without having to go through creative labor.Therefore, the present invention is not limited to the above embodiments, this field
Technical staff's announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be in guarantors of the invention
Within the scope of shield.
Claims (7)
1. equipment quasi-zero stiffness vibration isolators under a kind of railway vehicle truck characterized by comprising
Disk spring upper mounting seat (3), for being connect by transverse and longitudinal vibration isolating mechanism with equipment installation end (5) under vehicle,
Disk spring lower mounting seat (4), for being fixedly connected with car body installation end (6),
Disk spring (1), both ends are fixedly connected with disk spring upper mounting seat (3) and disk spring lower mounting seat (4) respectively,
Rubber spring (2), it is in parallel with disk spring (1), and the both ends of the rubber spring (2) respectively with disk spring upper mounting seat
(3) it is fixedly connected with disk spring lower mounting seat (4).
2. equipment quasi-zero stiffness vibration isolators under a kind of railway vehicle truck according to claim 1, which is characterized in that described
Transverse and longitudinal vibration isolating mechanism includes mounting ring (9) and rubber ring (8), and the mounting ring (9) is fixed on equipment installation end under vehicle
(5), it and is sheathed on disk spring upper mounting seat (3) outside, is used for the upper end of support disk spring upper mounting seat (3), and make dish
Spring upper mounting seat (3) can be filled in mounting ring in horizontal and vertical activity, the rubber ring (8) relative to mounting ring (9)
(9) between the upper end lateral surface of medial surface and disk spring upper mounting seat (3).
3. equipment quasi-zero stiffness vibration isolators under a kind of railway vehicle truck according to claim 1 or 2, which is characterized in that institute
Lubricant layer (7) are additionally provided between equipment installation end (5) under the disk spring upper mounting seat (3) stated and vehicle.
4. equipment quasi-zero stiffness vibration isolators under a kind of railway vehicle truck according to claim 1, which is characterized in that dish-shaped bullet
Spring upper mounting seat (3) is fixedly connected with outer ring one end of disk spring (1), disk spring lower mounting seat (4) and disk spring (1)
Inner ring one end be fixedly connected.
5. equipment quasi-zero stiffness vibration isolators under a kind of railway vehicle truck according to claim 4, which is characterized in that described
Upward, outer ring one end is downward for inner ring one end of disk spring (1).
6. equipment quasi-zero stiffness vibration isolators under a kind of railway vehicle truck according to claim 1 or 4, which is characterized in that institute
The ratio of height to thickness for the disk spring (1) stated is greater than
7. equipment quasi-zero stiffness vibration isolators under a kind of railway vehicle truck according to claim 1, which is characterized in that described
Disk spring (1) obtains quasi- zero stiffness after the negative stiffness of equilbrium position is superimposed with rubber spring (2) vertical stiffness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910692580.8A CN110439946A (en) | 2019-07-30 | 2019-07-30 | Equipment quasi-zero stiffness vibration isolators under a kind of railway vehicle truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910692580.8A CN110439946A (en) | 2019-07-30 | 2019-07-30 | Equipment quasi-zero stiffness vibration isolators under a kind of railway vehicle truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110439946A true CN110439946A (en) | 2019-11-12 |
Family
ID=68432227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910692580.8A Pending CN110439946A (en) | 2019-07-30 | 2019-07-30 | Equipment quasi-zero stiffness vibration isolators under a kind of railway vehicle truck |
Country Status (1)
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| CN (1) | CN110439946A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111336204A (en) * | 2020-02-14 | 2020-06-26 | 同济大学 | Vertical vibration isolation device |
| CN111923936A (en) * | 2020-07-15 | 2020-11-13 | 同济大学 | Quasi-zero stiffness vibration isolator for railway vehicle traction motor |
| CN112762121A (en) * | 2020-12-16 | 2021-05-07 | 沈阳工业大学 | Shock absorber and design method thereof |
| CN113551000A (en) * | 2021-07-09 | 2021-10-26 | 浙江大学 | Vibration isolation device of lower hanging structure |
| CN114060456A (en) * | 2021-11-29 | 2022-02-18 | 同济大学 | Quasi-zero stiffness shock absorber for railway vehicle seat |
| CN114321270A (en) * | 2021-11-30 | 2022-04-12 | 湖南航天机电设备与特种材料研究所 | Variable parameter rubber shock absorber for inertial measurement unit |
| CN114620085A (en) * | 2022-01-26 | 2022-06-14 | 中车齐齐哈尔车辆有限公司 | Bogie and secondary suspension system of bogie |
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| CN2521285Y (en) * | 2001-04-20 | 2002-11-20 | 税浩旭 | Friction sliding supporting seat |
| CN101775842A (en) * | 2009-10-23 | 2010-07-14 | 上海路博橡胶减振器技术有限公司 | Three-dimensional shock absorbing support |
| JP2011174527A (en) * | 2010-02-24 | 2011-09-08 | Toyo Tire & Rubber Co Ltd | Suspension support |
| CN103398139A (en) * | 2013-08-01 | 2013-11-20 | 湖南大学 | Dish-shaped rubber quasi-zero stiffness vibration isolator |
| CN203739570U (en) * | 2013-12-27 | 2014-07-30 | 长城汽车股份有限公司 | Shock-absorption suspension and vehicle |
| CN107654554A (en) * | 2017-10-12 | 2018-02-02 | 北京强度环境研究所 | A kind of support type shock absorber |
| CN109058377A (en) * | 2018-07-27 | 2018-12-21 | 同济大学 | A kind of quasi- zero stiffness damper for bullet train floor |
-
2019
- 2019-07-30 CN CN201910692580.8A patent/CN110439946A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2521285Y (en) * | 2001-04-20 | 2002-11-20 | 税浩旭 | Friction sliding supporting seat |
| CN101775842A (en) * | 2009-10-23 | 2010-07-14 | 上海路博橡胶减振器技术有限公司 | Three-dimensional shock absorbing support |
| JP2011174527A (en) * | 2010-02-24 | 2011-09-08 | Toyo Tire & Rubber Co Ltd | Suspension support |
| CN103398139A (en) * | 2013-08-01 | 2013-11-20 | 湖南大学 | Dish-shaped rubber quasi-zero stiffness vibration isolator |
| CN203739570U (en) * | 2013-12-27 | 2014-07-30 | 长城汽车股份有限公司 | Shock-absorption suspension and vehicle |
| CN107654554A (en) * | 2017-10-12 | 2018-02-02 | 北京强度环境研究所 | A kind of support type shock absorber |
| CN109058377A (en) * | 2018-07-27 | 2018-12-21 | 同济大学 | A kind of quasi- zero stiffness damper for bullet train floor |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111336204A (en) * | 2020-02-14 | 2020-06-26 | 同济大学 | Vertical vibration isolation device |
| CN111923936A (en) * | 2020-07-15 | 2020-11-13 | 同济大学 | Quasi-zero stiffness vibration isolator for railway vehicle traction motor |
| CN112762121A (en) * | 2020-12-16 | 2021-05-07 | 沈阳工业大学 | Shock absorber and design method thereof |
| CN113551000A (en) * | 2021-07-09 | 2021-10-26 | 浙江大学 | Vibration isolation device of lower hanging structure |
| CN114060456A (en) * | 2021-11-29 | 2022-02-18 | 同济大学 | Quasi-zero stiffness shock absorber for railway vehicle seat |
| CN114321270A (en) * | 2021-11-30 | 2022-04-12 | 湖南航天机电设备与特种材料研究所 | Variable parameter rubber shock absorber for inertial measurement unit |
| CN114321270B (en) * | 2021-11-30 | 2024-05-28 | 湖南航天机电设备与特种材料研究所 | Variable parameter rubber shock absorber for inertial mass |
| CN114620085A (en) * | 2022-01-26 | 2022-06-14 | 中车齐齐哈尔车辆有限公司 | Bogie and secondary suspension system of bogie |
| CN114620085B (en) * | 2022-01-26 | 2023-07-21 | 中车齐齐哈尔车辆有限公司 | Bogie and secondary suspension system of bogie |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191112 |
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| RJ01 | Rejection of invention patent application after publication |