CN104389937A - Tension spring and plate spring composite suspension system - Google Patents
Tension spring and plate spring composite suspension system Download PDFInfo
- Publication number
- CN104389937A CN104389937A CN201410466435.5A CN201410466435A CN104389937A CN 104389937 A CN104389937 A CN 104389937A CN 201410466435 A CN201410466435 A CN 201410466435A CN 104389937 A CN104389937 A CN 104389937A
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- CN
- China
- Prior art keywords
- leaf spring
- spring
- suspension system
- extension spring
- tension spring
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- 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.)
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Classifications
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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
- F16F3/02—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G7/00—Simulating cosmonautic conditions, e.g. for conditioning crews
Abstract
The invention provides a tension spring and plate spring composite suspension system. The tension spring and plate spring composite suspension system comprises a tension spring, plate springs, a vertical position adjusting bolt, a central connecting piece, an upper fixing plate, bearing bases and a load connector; the tension spring is in parallel connection with the plate springs; the upper end of the tension spring is connected with the upper fixing plate through the vertical position adjusting bolt; the vertical position adjusting bolt is used for adjusting the length of the loaded tension spring; the lower end of the tension spring is connected with the central connecting piece; the upper fixing plate stretches out of the bearing bases downwards; the plate springs are connected between the central connecting piece and the bearing bases; and the plate springs are symmetrically arranged in a convergence radiation manner. According to the system, under the condition that the suspension length is reduced, the ultralow-frequency suspension frequency is achieved. The tension spring and plate spring composite suspension system has the advantages of being small in size, large in bearing capability, small in deformation, and high in reliability, facilitating frequency adjustment and the like.
Description
Technical field
The present invention relates to the simulation field of weightlessness, be particularly useful for the weightlessness suspention experiment of satellite or other parts, be specifically related to a kind of extension spring leaf spring composite suspension system.
Background technique
Because the weightlessness in space and earth environment exist the difference of gravitation, the weightlessness in ground simulation space carries out scientific experiment to be needed to offset gravity.At present, passive suspension system is mainly stretch cord and metal extension spring.Because required suspention frequency needs are designed into very low, therefore, when suspending experimental subjects in midair, deformation of elastic element is very large, requires very high, also take up room very much to test site.In order to realize miniaturization and ultra-low frequency object, also have the Suspension System of many employing active modes, but initiatively Suspension System consumed power is large, and maintenance cost is high, and the problem such as existence and stability.Therefore, the Suspension System that bearing capacity is high, volume is little, suspention frequency is low is designed very necessary.
Summary of the invention
For defect of the prior art, the object of this invention is to provide a kind of extension spring leaf spring composite suspension system.
According to a kind of extension spring leaf spring composite suspension system provided by the invention, comprising: extension spring, leaf spring, vertical position adjusting bolt, central connector, upper mounted plate, supporting base, load connection;
Extension spring and leaf spring are connected in parallel;
The upper end of extension spring connects upper mounted plate by vertical position adjusting bolt, and vertical position adjusting bolt is used for the extension spring length after to loading and regulates;
The lower end of extension spring connects central connector;
Upper mounted plate extends supporting base downwards;
Leaf spring is connected between central connector and supporting base; To be that convergence type is radial be arranged symmetrically with leaf spring;
Load connection is connected to the lower end of central connector.
Preferably, the boundary conditions at leaf spring two ends is hinged or affixed.
Preferably, leaf spring two is one group, altogether four groups of eight leaf springs, and arrange in cross-shaped symmetrical, one end of described eight leaf springs is all connected to central connector, and the other end is individually fixed on four supporting bases; The end of leaf spring connects use rolling bearing and simulates hinged, and the border of leaf spring in deformation process is clamped.
Compared with prior art, the present invention has following beneficial effect:
The present invention uses extension spring to sling measured object, and the negative stiffness provided after utilizing leaf spring to be out of shape adjusts the rigidity of leaf spring further, thus under the condition reducing boom length, realize ultralow frequency suspention frequency.Compared with traditional common lifting rope or spring suspended device, this Suspension System has that size is little, bearing capacity is large, it is little to be out of shape, frequency adjustment convenient, reliability high.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is extension spring and leaf spring composite suspension system structural principle schematic diagram;
Fig. 2 is extension spring and leaf spring composite suspension system plan;
Fig. 3 is the stressed schematic diagram of central connector under Suspension System working state.
1 is extension spring;
2 is vertical position adjusting bolt;
3 is leaf spring;
Link centered by 4;
5 is upper mounted plate;
6 is load connection;
7 is lift heavy.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
Described extension spring leaf spring composite suspension system is a kind of ultralow frequency Suspension System combined based on extension spring and leaf spring, it comprises the extension spring and leaf spring that are connected in parallel, the fixed end of extension spring is connected and fixed by adjustable nut, its length after loading can be regulated, leaf spring is convergence type radial arrangement, major character is for being arranged symmetrically with, unrestricted under the condition that its number allows in space.
Described extension spring one end links to the central connector of leaf spring group structure, and the other end passes through adjustable bolted on connection to upper mounted plate.
Described leaf spring symmetrically radial arrangement, link centered by emission center, the boundary conditions at leaf spring two ends can be hinged or affixed.
More specifically, extension spring is connected with top plate by vertical height-adjustable mechanism, leaf spring to be crossed connection by central connector, and radially layout, leaf spring number is in groups all unrestricted with group number, one end of central connector connects extension spring, and the other end is connected to the load needing to carry out suspending experiment in midair.
Extension spring of the present invention and leaf spring compound ultralow frequency Suspension System, can be used for the suspention experiment of simulation space weightlessness, and have the following advantages and high-lighting effect: hang by after experiment object, the Suspension System of composition has extremely low suspention frequency.The suspension point of load can be regulated, simultaneously the suspention frequency of regulating system by the vertical adjusting bolt of extension spring.Because the negative stiffness characteristic that band spring mechanism is intrinsic, make it can effectively reduce the rigidity of extension spring, thus obtain extremely low suspention rigidity.It is little that this Suspension System has size, and bearing capacity is large, is out of shape little, frequency adjustment convenience and reliability high.
Further particularly, shown in accompanying drawing 2, concrete implementation step is as follows:
The first step, leaf spring two is one group, altogether four groups of eight leaf springs, and arrange in cross-shaped symmetrical, one end is connected to central connector, and the other end is individually fixed on four supporting bases.The end connection of leaf spring can use rolling bearing simulation hinged, and the border of leaf spring in deformation process is clamped;
Second step, is fixed on supporting base on upper mounted plate, and be connected with extension spring one end by the interface of central connector, the other end of extension spring is connected to upper mounted plate by adjustable bolt;
3rd step, connects payload interface part, is fixed by upper mounted plate during use, after installed load, regulates the height of central connector by adjusting bolt, thus ensures that leaf spring two end part level is to obtain minimum suspention frequency.
To sum up, it is simple that the present invention has design configuration, and the suspention frequency of Suspension System is extremely low, is out of shape little after installed load, takes up room little, and stability is good.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (3)
1. an extension spring leaf spring composite suspension system, is characterized in that, comprising: extension spring, leaf spring, vertical position adjusting bolt, central connector, upper mounted plate, supporting base, load connection;
Extension spring and leaf spring are connected in parallel;
The upper end of extension spring connects upper mounted plate by vertical position adjusting bolt, and vertical position adjusting bolt is used for the extension spring length after to loading and regulates;
The lower end of extension spring connects central connector;
Upper mounted plate extends supporting base downwards;
Leaf spring is connected between central connector and supporting base; To be that convergence type is radial be arranged symmetrically with leaf spring;
Load connection is connected to the lower end of central connector.
2. extension spring leaf spring composite suspension system according to claim 1, is characterized in that, the boundary conditions at leaf spring two ends is hinged or affixed.
3. extension spring leaf spring composite suspension system according to claim 1, is characterized in that, leaf spring two is one group, four groups of eight leaf springs altogether, arrange in cross-shaped symmetrical, one end of described eight leaf springs is all connected to central connector, and the other end is individually fixed on four supporting bases; The end of leaf spring connects use rolling bearing and simulates hinged, and the border of leaf spring in deformation process is clamped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410466435.5A CN104389937B (en) | 2014-09-12 | 2014-09-12 | Extension spring leaf spring composite suspension system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410466435.5A CN104389937B (en) | 2014-09-12 | 2014-09-12 | Extension spring leaf spring composite suspension system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104389937A true CN104389937A (en) | 2015-03-04 |
| CN104389937B CN104389937B (en) | 2016-08-24 |
Family
ID=52607882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410466435.5A Active CN104389937B (en) | 2014-09-12 | 2014-09-12 | Extension spring leaf spring composite suspension system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104389937B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151335A (en) * | 2015-04-28 | 2016-11-23 | 上海交通大学 | There is the elastic stiffness tunable arrangement of regulating part |
| CN106523564A (en) * | 2016-12-20 | 2017-03-22 | 刘运伟 | Ring type elastic device |
| CN107654551A (en) * | 2017-10-25 | 2018-02-02 | 西安交通大学 | A kind of multiple degrees of freedom low frequency vibration isolation device based on mode of oscillation and pendulum modal coupling |
Citations (6)
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| US3516179A (en) * | 1968-01-26 | 1970-06-23 | Nasa | Mechanical simulator of low gravity conditions |
| US5024111A (en) * | 1989-10-30 | 1991-06-18 | Aec-Able Engineering Co., Inc. | Adjustment of zero spring rate suspensions |
| CN201338518Y (en) * | 2008-12-17 | 2009-11-04 | 戎泽明 | Multi-function light shock absorber |
| CN101759092A (en) * | 2008-12-24 | 2010-06-30 | 中国科学院自动化研究所 | Single counterweight type automatic levelling spreader and using method thereof |
| CN103335049A (en) * | 2013-06-25 | 2013-10-02 | 徐州荣海机械制造有限公司 | Electric vehicle leaf spring |
| CN103895881A (en) * | 2014-04-15 | 2014-07-02 | 哈尔滨工业大学 | Driven cross-shaped rotating hanging bracket device |
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2014
- 2014-09-12 CN CN201410466435.5A patent/CN104389937B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3516179A (en) * | 1968-01-26 | 1970-06-23 | Nasa | Mechanical simulator of low gravity conditions |
| US5024111A (en) * | 1989-10-30 | 1991-06-18 | Aec-Able Engineering Co., Inc. | Adjustment of zero spring rate suspensions |
| CN201338518Y (en) * | 2008-12-17 | 2009-11-04 | 戎泽明 | Multi-function light shock absorber |
| CN101759092A (en) * | 2008-12-24 | 2010-06-30 | 中国科学院自动化研究所 | Single counterweight type automatic levelling spreader and using method thereof |
| CN103335049A (en) * | 2013-06-25 | 2013-10-02 | 徐州荣海机械制造有限公司 | Electric vehicle leaf spring |
| CN103895881A (en) * | 2014-04-15 | 2014-07-02 | 哈尔滨工业大学 | Driven cross-shaped rotating hanging bracket device |
Non-Patent Citations (1)
| Title |
|---|
| 路波: "零重力环境模拟气动悬挂系统的关键技术研究", 《中国博士学位论文全文数据库 工程科技Ⅱ辑》, 15 November 2009 (2009-11-15) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151335A (en) * | 2015-04-28 | 2016-11-23 | 上海交通大学 | There is the elastic stiffness tunable arrangement of regulating part |
| CN106523564A (en) * | 2016-12-20 | 2017-03-22 | 刘运伟 | Ring type elastic device |
| CN107654551A (en) * | 2017-10-25 | 2018-02-02 | 西安交通大学 | A kind of multiple degrees of freedom low frequency vibration isolation device based on mode of oscillation and pendulum modal coupling |
| CN107654551B (en) * | 2017-10-25 | 2019-08-13 | 西安交通大学 | A kind of multiple degrees of freedom low frequency vibration isolation device based on mode of oscillation and pendulum modal coupling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104389937B (en) | 2016-08-24 |
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