CN110435698A - A kind of quasi- zero stiffness primary spring of rail truck - Google Patents
A kind of quasi- zero stiffness primary spring of rail truck Download PDFInfo
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- CN110435698A CN110435698A CN201910692452.3A CN201910692452A CN110435698A CN 110435698 A CN110435698 A CN 110435698A CN 201910692452 A CN201910692452 A CN 201910692452A CN 110435698 A CN110435698 A CN 110435698A
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- mounting base
- end mounting
- spring
- disk spring
- quasi
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
- B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
- B61F5/301—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating metal springs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The present invention relates to a kind of quasi- zero stiffness primary springs of rail truck, connection for framework and axle box, it is helical spring including disk spring upper end mounting base, disk spring lower end mounting base, disk spring and one, wherein: disk spring upper end mounting base is connect by vertical position-limit mechanism with framework end mounting base, and framework end mounting base with framework for being fixedly connected；Disk spring lower end mounting base is fixedly connected with axle box end mounting base, and axle box end mounting base with axle box for being fixedly connected；The both ends of disk spring are fixedly connected with disk spring upper end mounting base and disk spring lower end mounting base respectively；One is that helical spring and disk spring are arranged in parallel between framework end mounting base and axle box end mounting base.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, improves rail truck running comfort.
Description
Technical field
The present invention relates to low frequency vibration isolation fields, more particularly, to a kind of quasi- zero stiffness primary spring of rail truck.
Background technique
The vibration of rail truck car body has direct relation with primary spring, with mentioning for the rail truck speed of service
Height, body oscillating increase, in order to improve rail truck riding comfort and vehicle smoothness, need to primary spring into
Row optimization and improvement.Rail truck primary spring generallys use helical spring or rubber spring at present, according to theory of vibration isolation,
Helical spring or rubber spring rigidity are lower, and vibration isolation initial frequency is lower, are more conducive to that low-frequency vibration is isolated.But if rigidity
The problems such as too low, it is excessive to will lead to natural bow, excessive so as to cause deflection.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of rail truck standards zero
Rigidity primary spring.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of quasi- zero stiffness primary spring of rail truck, the connection for framework and axle box, comprising:
Disk spring upper end mounting base is connect by vertical position-limit mechanism with framework end mounting base, the framework end peace
Dress seat is used to be fixedly connected with framework,
Disk spring lower end mounting base is fixedly connected with axle box end mounting base, and the axle box end mounting base is used for and axis
Case is fixedly connected,
Disk spring, both ends are fixedly connected with disk spring upper end mounting base and disk spring lower end mounting base respectively,
One is helical spring, is arranged in parallel between framework end mounting base and axle box end mounting base with disk spring.
Preferably, the vertical position-limit mechanism includes upper end mounting ring, and the upper end mounting ring is fixed on framework end
It in mounting base, and is sheathed on outside the mounting base of disk spring upper end, for the upper end of support disk spring upper end mounting base, and makes dish
Shape spring upper end mounting base can be in horizontal and vertical activity relative to upper end mounting ring.
Preferably, lubricant layer is equipped between the disk spring upper end mounting base and framework end mounting base.
Preferably, disk spring upper end mounting base is fixedly connected with outer ring one end of disk spring, disk spring lower end peace
Dress seat 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；Or the disk spring is interior
Enclose one end downward, outer ring one end is upward.
Preferably, the ratio of height to thickness of the disk spring is greater than
Preferably, it is inside helical spring that the disk spring, which is located at one,.
Preferably, negative stiffness of the disk spring in equilbrium position with one is after helical spring vertical stiffness is superimposed
To quasi- zero stiffness.
Preferably, described one is natural bow of the vertical stiffness of helical spring under load capacity and common helical spring
Natural bow is suitable.The present invention is high quiet low dynamic stiffness primary spring, its main feature is that Static stiffness is high, dynamic stiffness is low.Natural bow
With common one it is that helical spring is suitable, that is, Static stiffness is suitable, and dynamic stiffenss ratio common one is that helical spring is much lower, thus
Achieve the effect that a kind of low frequency vibration damping.
The operation principle of the present invention is that:
It is that helical spring is in parallel with one using the negative stiffness characteristic of disk spring, it is rigid designs a kind of rail truck standard zero
Spend primary spring.Its design procedure are as follows: firstly, design one is helical spring, make its vertical stiffness under load capacity
Natural bow is suitable with common helical spring natural bow；Then, disk spring is designed, its negative stiffness in equilbrium position and a system are made
Quasi- zero stiffness is obtained after the superposition of helical spring vertical stiffness；Finally, design disk spring upper end mounting base and disk spring lower end
Mounting base, upper end mounting ring make one to be that helical spring is in parallel with disk spring, and in disk spring upper end mounting base and framework end
Lubricant layer is designed between mounting base, so that disk spring is not being provided power longitudinally, laterally, vertical force is only provided.
Compared with prior art, the invention has the following advantages:
(1) using the disk spring of negative stiffness and the structure type that be helical spring in parallel is provided, disk spring is made to exist
Vertical stiffness is that quasi- zero stiffness is obtained after helical spring is superimposed with one, to realize quasi- zero stiffness, single stage suspension is enable effectively to drop
The low vibration that framework is transferred to from track improves riding comfort and the operation of passenger to reduce the vibration of framework and car body
Stationarity.
(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 is the axle box end scheme of installation of the embodiment of the present invention 1；
Fig. 2 is the structural schematic diagram (area Tu1Zhong A of the quasi- zero stiffness primary spring of rail truck of the embodiment of the present invention 1
The partial enlarged view in domain)；
Fig. 3 is the disk spring schematic cross-section of the embodiment of the present invention 1；
Fig. 4 is that common single stage suspension and quasi- zero stiffness single stage suspension lower body vibration of the invention is respectively adopted in bullet train
Acceleration simulation result.
In figure, 1 is disk spring upper end mounting base, and 2 be disk spring, and 3 be disk spring lower end mounting base, and 4 be framework
Hold mounting base, 5 be axle box end mounting base, and 6 for one be helical spring, and 7 be lubricant layer, and 8 be upper end mounting ring.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
A kind of quasi- zero stiffness primary spring of rail truck, for the connection of framework and axle box, as shown in Figures 1 to 3, packet
Including disk spring upper end mounting base 1, disk spring lower end mounting base 3, disk spring 2 and one is helical spring 6, in which: dish
Spring upper end mounting base 1 is connect by vertical position-limit mechanism with framework end mounting base 4, and framework end mounting base 4 is used for solid with framework
Fixed connection；Disk spring lower end mounting base 3 is fixedly connected with axle box end mounting base 5, and axle box end mounting base 5 with axle box for fixing
Connection；The both ends of disk spring 2 are fixedly connected with disk spring upper end mounting base 1 and disk spring lower end mounting base 3 respectively；One
Be helical spring 6 and disk spring 2 be arranged in parallel between framework end mounting base 4 and axle box end mounting base 5 it is (excellent in the present embodiment
Selecting disk spring 2 to be located at one is inside helical spring 6).
In the present embodiment, vertical position-limit mechanism includes upper end mounting ring 8, and upper end mounting ring 8 is fixed on framework end mounting base 4
On, and be sheathed on outside disk spring upper end mounting base 1, for the upper end of support disk spring upper end mounting base 1, and make dish-shaped bullet
Spring upper end mounting base 1 can be in horizontal and vertical activity relative to upper end mounting ring 8.It is preferred that disk spring upper end mounting base 1 and frame
Lubricant layer 7 is equipped between structure end mounting base 4.
In the present embodiment, disk spring upper end mounting base 1 is fixedly connected with outer ring one end of disk spring 2, disk spring
Lower end mounting base 3 is fixedly connected with inner ring one end of disk spring 1.Mounting base 1 He in preferred disk spring upper end in the present embodiment
The groove to match with disk spring 1 is equipped with the junction of disk spring 1 in disk spring lower end mounting base 3.Disk spring
The main part of upper end mounting base 1 and disk spring lower end mounting base 3 is cylindrical.In the present embodiment, the inner ring of disk spring 2
Upward, outer ring one end is downward for one end；Or be inversely installed, making inner ring one end of disk spring 2, outer ring one end is upward downward.It is preferred that
The ratio of height to thickness of disk spring 2 is greater than
It is that specific step is as follows: its design procedure for 6 parameter designing of helical spring for disk spring 2 and one are as follows: firstly, setting
Meter one is helical spring 6, keeps natural bow of its vertical stiffness under load capacity suitable with common helical spring natural bow；So
Afterwards, disk spring 2 is designed, it is made in the negative stiffness of equilbrium position to be to obtain quasi- zero after 8 vertical stiffness of helical spring is superimposed with one
Rigidity；Finally, design disk spring upper end mounting base 1, disk spring lower end installation 3 and upper end mounting ring 8, making one is spiral bullet
Spring 6 is in parallel with disk spring 2, and lubricant layer 7 is designed between disk spring upper end mounting base 1 and framework end mounting base 4, makes dish
Shape spring 2 is not providing power longitudinally, laterally, only provides vertical force.
Fig. 4 is that bullet train is respectively adopted under common single stage suspension and quasi- zero stiffness single stage suspension of the invention, car body vibration
Dynamic acceleration simulation as a result, be car body floor time domain vibration acceleration as shown in the figure.As can be seen that with common single stage suspension phase
Than the quasi- zero stiffness single stage suspension that this patent proposes can preferably reduce body oscillating, to improve vehicle smoothness.
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 (8)
1. a kind of quasi- zero stiffness primary spring of rail truck, the connection for framework and axle box characterized by comprising
Disk spring upper end mounting base (1) is connect by vertical position-limit mechanism with framework end mounting base (4), the framework end
Mounting base (4) is used to be fixedly connected with framework,
Disk spring lower end mounting base (3) is fixedly connected with axle box end mounting base (5), and the axle box end mounting base (5) is used for
It is fixedly connected with axle box,
Disk spring (2), both ends are fixed with disk spring upper end mounting base (1) and disk spring lower end mounting base (3) respectively to be connected
It connects,
One is helical spring (6), with disk spring (2) be arranged in parallel in framework end mounting base (4) and axle box end mounting base (5) it
Between.
2. the quasi- zero stiffness primary spring of a kind of rail truck according to claim 1, which is characterized in that described hangs down
It include upper end mounting ring (8) to position-limit mechanism, the upper end mounting ring (8) is fixed in framework end mounting base (4), and is arranged
Outside in disk spring upper end mounting base (1), it is used for the upper end of support disk spring upper end mounting base (1), and is made in disk spring
Hold mounting base (1) can be in horizontal and vertical activity relative to upper end mounting ring (8).
3. the quasi- zero stiffness primary spring of a kind of rail truck according to claim 1 or 2, which is characterized in that described
Disk spring upper end mounting base (1) and framework end mounting base (4) between be equipped with lubricant layer (7).
4. the quasi- zero stiffness primary spring of a kind of rail truck according to claim 1, which is characterized in that disk spring
Upper end mounting base (1) is fixedly connected with outer ring one end of disk spring (2), disk spring lower end mounting base (3) and disk spring
(1) inner ring one end is fixedly connected.
5. the quasi- zero stiffness primary spring of a kind of rail truck according to claim 4, which is characterized in that the dish
Upward, outer ring one end is downward for inner ring one end of shape spring (2)；Or inner ring one end of the disk spring (2) is downward, outer ring one
End is upward.
6. the quasi- zero stiffness primary spring of a kind of rail truck according to claim 1, which is characterized in that the dish
The ratio of height to thickness of shape spring (2) is greater than
7. the quasi- zero stiffness primary spring of a kind of rail truck according to claim 1, which is characterized in that the dish
It is that helical spring (6) is internal that shape spring (2), which is located at one,.
8. the quasi- zero stiffness primary spring of a kind of rail truck according to claim 1, which is characterized in that the dish
Negative stiffness of the type spring (2) in equilbrium position with one is to obtain quasi- zero stiffness after helical spring (6) vertical stiffness is superimposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910692452.3A CN110435698B (en) | 2019-07-30 | 2019-07-30 | Quasi-zero rigidity primary suspension system of railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910692452.3A CN110435698B (en) | 2019-07-30 | 2019-07-30 | Quasi-zero rigidity primary suspension system of railway vehicle |
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| CN110435698A true CN110435698A (en) | 2019-11-12 |
| CN110435698B CN110435698B (en) | 2021-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910692452.3A Active CN110435698B (en) | 2019-07-30 | 2019-07-30 | Quasi-zero rigidity primary suspension system of railway vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110775092A (en) * | 2019-11-20 | 2020-02-11 | 中车大连机车车辆有限公司 | Pressure spring lifting device of locomotive bogie |
| CN113551000A (en) * | 2021-07-09 | 2021-10-26 | 浙江大学 | Vibration isolation device of lower hanging structure |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0318922A1 (en) * | 1987-12-03 | 1989-06-07 | Gec Alsthom Sa | Primary suspension for railway vehicles |
| 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 |
| CN105889386A (en) * | 2014-11-28 | 2016-08-24 | 中国人民解放军63966部队 | Dry-friction type three-way strong-impact-resistant isolation buffer |
| CN107061615A (en) * | 2017-03-28 | 2017-08-18 | 同济大学 | It is a kind of to be used for the shock absorber that equipment is hung under railway vehicle truck |
| CN107654554A (en) * | 2017-10-12 | 2018-02-02 | 北京强度环境研究所 | A kind of support type shock absorber |
| CN109027085A (en) * | 2018-07-27 | 2018-12-18 | 同济大学 | A kind of low frequency vibration isolation device for bullet train floor |
| CN109058378A (en) * | 2018-07-27 | 2018-12-21 | 同济大学 | Dish-like rubber spring quasi-zero stiffness vibration isolators for bullet train floor |
| 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 CN201910692452.3A patent/CN110435698B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0318922A1 (en) * | 1987-12-03 | 1989-06-07 | Gec Alsthom Sa | Primary suspension for railway vehicles |
| 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 |
| CN105889386A (en) * | 2014-11-28 | 2016-08-24 | 中国人民解放军63966部队 | Dry-friction type three-way strong-impact-resistant isolation buffer |
| CN107061615A (en) * | 2017-03-28 | 2017-08-18 | 同济大学 | It is a kind of to be used for the shock absorber that equipment is hung under railway vehicle truck |
| CN107654554A (en) * | 2017-10-12 | 2018-02-02 | 北京强度环境研究所 | A kind of support type shock absorber |
| CN109027085A (en) * | 2018-07-27 | 2018-12-18 | 同济大学 | A kind of low frequency vibration isolation device for bullet train floor |
| CN109058378A (en) * | 2018-07-27 | 2018-12-21 | 同济大学 | Dish-like rubber spring quasi-zero stiffness vibration isolators for bullet train floor |
| 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 (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110775092A (en) * | 2019-11-20 | 2020-02-11 | 中车大连机车车辆有限公司 | Pressure spring lifting device of locomotive bogie |
| CN113551000A (en) * | 2021-07-09 | 2021-10-26 | 浙江大学 | Vibration isolation device of lower hanging structure |
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| Publication number | Publication date |
|---|---|
| CN110435698B (en) | 2021-09-03 |
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