CN104948624A - Square-section spring mechanism with adjustable rigidity - Google Patents
Square-section spring mechanism with adjustable rigidity Download PDFInfo
- Publication number
- CN104948624A CN104948624A CN201510389979.0A CN201510389979A CN104948624A CN 104948624 A CN104948624 A CN 104948624A CN 201510389979 A CN201510389979 A CN 201510389979A CN 104948624 A CN104948624 A CN 104948624A
- Authority
- CN
- China
- Prior art keywords
- spring
- screw pair
- screw
- rigidity
- spring mechanism
- 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
-
- 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
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/04—Wound springs
-
- 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
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/04—Wound springs
- F16F1/12—Attachments or mountings
- F16F1/13—Attachments or mountings comprising inserts and spacers between the windings for changing the mechanical or physical characteristics of the spring
Abstract
A square-section spring mechanism with adjustable rigidity comprises a pipe body, a spring and a screw, an external thread is arranged on the outer wall of the pipe body, an internal thread is arranged on the inner wall of the pipe body, the screw is screwed into the internal thread to form a first screw pair, and the spring is screwed into the external thread to form a second screw pair. The spring is a cylindrical equal-pitch spiral spring with the rectangular section, the first screw pair and the second screw pair are rectangular screw pairs, the internal thread and the external thread are equal in pitch, the lift angle of the internal thread and the lift angle of the external thread of the pipe body are smaller than the minimum equivalent frictional angle in the first screw pair and the second screw pair, and the rigidity of the spring is continuously adjustable within the design range. The square-section spring mechanism is simple in structure, capable of bearing large loads and high in stability, the rigidity of the spring mechanism can be adjusted under the loading condition, the rigidity adjusting process is simple, the debugging time is greatly saved, and the debugging efficiency of a prototype is improved.
Description
Technical field
The present invention relates to a kind of spring, specifically a kind of square section spring mechanism of adjustable rigidity.
Background technique
The spring of adjustable rigidity has larger demand in the engineering practice such as prototype debug, modal analysis, in order to the best rigidity of certain spring in certainty annuity, to meet design requirement.In order to realize the object of Regulation spring rigidity, the method extensively adopted at present mainly contains three kinds: the first produces the spring of multiple rigidity, until find suitable rigidity, this method cost is high, the debug time of model machine is long, can not realize the continuous adjustment to spring rate; It two is use the automatically controlled or agency part of pneumatic control system to spring to regulate, and this system architecture is complicated, bulky, is not easy to install and use, and requires high to surrounding environment; It three is realized by electromagnetic spring, and this load on spring ability is little, cannot meet the demand in engineering.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of square section spring mechanism of adjustable rigidity is provided.
To achieve these goals, present invention employs following technological scheme:
A square section spring mechanism for adjustable rigidity, comprise body, spring and screw, tube wall is provided with outside thread, and inboard wall of tube body is provided with internal thread, and screw screws in internal thread and forms the first screw pair, and spring screws in outside thread and forms the second screw pair.
Described spring is cylindrical equal pitch helical spring.
Described spring is Rectangular Section Spring, and the first screw pair and the second screw pair are rectangular coil pair.
Described internal thread is equal with externally threaded pitch.
The internal thread of described body and externally threaded lift angle are less than equivalent friction angle minimum in the first screw pair and the second screw pair.
Rigidity continuously adjustabe in scope of design of described spring.
Compared with prior art, the beneficial effect that possesses of the present invention:
The present invention realizes the continuous adjustment to spring rate by the effective interaction length changing spring, and keeps its car space constant.Structure of the present invention is simple, and can bear larger load, stability is high, also can regulate the rigidity of spring mechanism under loading, and regulates the process of rigidity simple, has greatly saved debug time, has improve the debugging efficiency of model machine.The profile of described spring and common spring is more or less the same, and directly can replace most common spring, does not need to customize special fixture, and before and after changing, surrounding components boundary dimension is without the need to modifying.Rigidity due to spring is continuously adjustable, therefore the data drawn will be more accurate.Can reuse and can be applied to multiple different occasion, highly versatile, effectively reduces cost of production, shortens the R&D cycle.
Accompanying drawing explanation
Fig. 1 is square section of the present invention spring mechanism erection drawing.
Fig. 2 is the body schematic diagram of square section of the present invention spring mechanism.
Fig. 3 is the sectional view of the body of square section of the present invention spring mechanism.
Fig. 4 is the spring schematic diagram of square section of the present invention spring mechanism.
Fig. 5 is the screw schematic diagram of square section of the present invention spring mechanism.
Embodiment
Below by embodiment, technological scheme of the present invention is further elaborated.
Embodiment 1
A kind of square section spring mechanism of adjustable rigidity, comprise body 2, spring 1 and screw 3, body 2 outer wall is provided with outside thread, and body 2 inwall is provided with internal thread, screw 3 screws in internal thread and forms the first screw pair, and spring 1 screws in outside thread and forms the second screw pair.
Described spring 1 is cylindrical equal pitch helical spring.
Described spring 1 is Rectangular Section Spring, and the first screw pair and the second screw pair are rectangular coil pair.
Described internal thread is equal with externally threaded pitch.
The internal thread of described body 2 and externally threaded lift angle are less than equivalent friction angle minimum in the first screw pair and the second screw pair.
Rigidity continuously adjustabe in scope of design of described spring 1.
Working principle and process thereof:
Rotated by the confronting coaxial of spring and body, can make to produce axial displacement between the two, and change the extrusion of spring with this, namely change the practical function length of spring, reach the object of Regulation spring rigidity.Because described internal thread is equal with externally threaded pitch, when spring and screw do not relatively rotate, by rotating tubular body, while can realizing changing spring mechanism rigidity, the length of keep-spring mechanism is constant.
The part be only in spring beyond body outside thread is working, and remaining part contacts with body maintaining rigidness.Because the internal thread of body and externally threaded lift angle are less than equivalent friction angle minimum in the first screw pair and the second screw pair, therefore in course of normal operation, first screw pair and the second screw pair are all in self-locking state, whole system is identical with the mechanical property of common spring, only have under external force, body just can rotate, and the rigidity of spring mechanism is changed.
Material section due to described spring is rectangle, and the first screw pair and the second screw pair are rectangular coil pair, and therefore spring and outside thread can closely cooperate, and when applying axial force to spring, spring can not skid off screw thread.
Claims (6)
1. a square section spring mechanism for adjustable rigidity, is characterized in that, comprises body, spring and screw, tube wall is provided with outside thread, inboard wall of tube body is provided with internal thread, and screw screws in internal thread and forms the first screw pair, and spring screws in outside thread and forms the second screw pair.
2. the square section spring mechanism of adjustable rigidity as claimed in claim 1, it is characterized in that, described spring is cylindrical equal pitch helical spring.
3. the square section spring mechanism of adjustable rigidity as claimed in claim 2, it is characterized in that, described spring is Rectangular Section Spring, and the first screw pair and the second screw pair are rectangular coil pair.
4. the square section spring mechanism of the adjustable rigidity as described in claims 1 to 3 any one, is characterized in that, described internal thread is equal with externally threaded pitch.
5. the square section spring mechanism of the adjustable rigidity as described in claims 1 to 3 any one, is characterized in that, the internal thread of described body and externally threaded lift angle are less than equivalent friction angle minimum in the first screw pair and the second screw pair.
6. the square section spring mechanism of the adjustable rigidity as described in claims 1 to 3 any one, is characterized in that, rigidity continuously adjustabe in scope of design of described spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510389979.0A CN104948624A (en) | 2015-07-03 | 2015-07-03 | Square-section spring mechanism with adjustable rigidity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510389979.0A CN104948624A (en) | 2015-07-03 | 2015-07-03 | Square-section spring mechanism with adjustable rigidity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104948624A true CN104948624A (en) | 2015-09-30 |
Family
ID=54163557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510389979.0A Pending CN104948624A (en) | 2015-07-03 | 2015-07-03 | Square-section spring mechanism with adjustable rigidity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104948624A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216636A (en) * | 2015-10-28 | 2016-01-06 | 广西大学 | A kind of pantograph spring case of adjustable rigidity |
| US11021029B2 (en) | 2018-02-28 | 2021-06-01 | Eric Harrison | Vehicle suspension assembly and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB721490A (en) * | 1952-07-04 | 1955-01-05 | Jean Leopold Pierre Duverdier | Improvements in devices for attaching or securing helical springs |
| DE3609437A1 (en) * | 1986-03-20 | 1987-09-24 | Vdo Schindling | Arrangement for adjusting the spring constants of a helical spring |
| CN102312897A (en) * | 2010-07-07 | 2012-01-11 | 富泰华工业（深圳）有限公司 | Anti-loose screw |
| US20130175394A1 (en) * | 2012-01-10 | 2013-07-11 | Dale O. Cipra | Adjustable spring system and method of adjusting spring rate |
| CN104067021A (en) * | 2012-03-07 | 2014-09-24 | 迪茨弹簧制造厂有限公司 | Spring sleeve and spring pin |
| CN203856945U (en) * | 2014-05-29 | 2014-10-01 | 临海市鹿城机车部件有限公司 | Motorcycle shock absorber |
-
2015
- 2015-07-03 CN CN201510389979.0A patent/CN104948624A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB721490A (en) * | 1952-07-04 | 1955-01-05 | Jean Leopold Pierre Duverdier | Improvements in devices for attaching or securing helical springs |
| DE3609437A1 (en) * | 1986-03-20 | 1987-09-24 | Vdo Schindling | Arrangement for adjusting the spring constants of a helical spring |
| CN102312897A (en) * | 2010-07-07 | 2012-01-11 | 富泰华工业（深圳）有限公司 | Anti-loose screw |
| US20130175394A1 (en) * | 2012-01-10 | 2013-07-11 | Dale O. Cipra | Adjustable spring system and method of adjusting spring rate |
| CN104067021A (en) * | 2012-03-07 | 2014-09-24 | 迪茨弹簧制造厂有限公司 | Spring sleeve and spring pin |
| CN203856945U (en) * | 2014-05-29 | 2014-10-01 | 临海市鹿城机车部件有限公司 | Motorcycle shock absorber |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216636A (en) * | 2015-10-28 | 2016-01-06 | 广西大学 | A kind of pantograph spring case of adjustable rigidity |
| CN105216636B (en) * | 2015-10-28 | 2017-09-05 | 广西大学 | A kind of pantograph spring case of adjustable rigidity |
| US11021029B2 (en) | 2018-02-28 | 2021-06-01 | Eric Harrison | Vehicle suspension assembly and method |
| US11872858B2 (en) | 2018-02-28 | 2024-01-16 | Eric Harrison | Vehicle suspension assembly and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150930 |
|
| RJ01 | Rejection of invention patent application after publication |