CN102537163A - Design method for total coil number of spring - Google Patents
Design method for total coil number of spring Download PDFInfo
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- CN102537163A CN102537163A CN2012100256362A CN201210025636A CN102537163A CN 102537163 A CN102537163 A CN 102537163A CN 2012100256362 A CN2012100256362 A CN 2012100256362A CN 201210025636 A CN201210025636 A CN 201210025636A CN 102537163 A CN102537163 A CN 102537163A
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Abstract
The invention provides a design method for the total coil number of a spring, which belongs to the field of cylindrically-coiled type spring production. The total coil number of the spring is determined by the following formula: the total coil number of the spring is equal to the number of active coils plus the coil number converted by the grinding length of end coils plug the coil number converted by the length of contact lines, so that factors for influencing the supplementation of the coil number are determined: through the coil number converted by the grinding length of the end coils and the coil number converted by the length of the contact lines, the total coil number of the spring can be more accurately determined, and the rigidity tolerance of the spring is reduced.
Description
Technical field
The present invention relates to cylindrical screw formula spring production field, especially design a kind of design method of cylindrically coiled spring number of total coils.
Background technique
Along with develop rapidly economic and technology; The railroad train of China is brought in constant renewal in and is regenerated, and speed also improves constantly, along with the raising of train quality and the rising of speed; Railroad train is also increasingly high to the requirement of spring; Especially speed can reach 200-500 kilometer/hour bullet train, and is more accurate to the rigidity requirement of spring, and very small rigidity tolerance all possibly impact the train of high speed operation.The rigidity of spring depends on the shear modulus of spring material, the material footpath of spring, the middle footpath of spring and the number of active coils of spring; The number of active coils of its medi-spring can not be measured out, and the size of its value is to guarantee through rolling technology and being provided with of number of total coils that end encloses.At present at spring design production field, usually just simply the number of total coils of spring is calculated as: number of total coils=coil+1.5, promptly on the basis of coil, all add the end circle of 1.5 circles, influence the additional number of turns of number of total coils as it.This algorithm can draw number of total coils roughly under fineness and the undemanding situation of rigidity tolerance, but, larger-size spring strict for the rigidity tolerance have very big drawback:
The number of total coils that calculating calculated of above number of total coils is often less than the number of turns of actual demand; Cause actual number of active coils few; Thereby cause the rigidity of spring bigger than normal; Replenish the difficulty affirmation of influence factor of the number of turns at the high-precision spring production field of large-size, and confirm to replenish the influence factor of the number of turns and confirm that the additional cost of the number of turns own is bigger, so at present still in the rough calculation method that adopts number of total coils=coil+1.5.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can accurately calculate the cylindrically coiled spring number of total coils, reduce rigidity Tolerance Design method.
In order to achieve the above object, the present invention adopts following technological scheme:
A kind of design method of spring number of total coils, said spring number of total coils is confirmed by following formula:
The number of turns that the number of turns+contact line length that the length of spring number of total coils=coil+end circle grinding is converted into is converted into.
Further, said spring is a cylindrical screw formula spring.
Advantage of the present invention and beneficial effect:
The design method of spring number of total coils provided by the invention; The spring number of total coils is defined as: the number of turns that the number of turns+contact line length that the length of coil+end circle grinding is converted into is converted into; Confirmed that influence replenishes the factor of the number of turns: the number of turns that the number of turns that the length of end circle grinding is converted into and contact line length are converted into; Can more accurately confirm to reduce the spring rate tolerance by the spring number of total coils.
Description of drawings
Fig. 1 is the spring structure schematic representation of the design method of spring number of total coils provided by the invention.
Embodiment
In order to make the object of the invention, technological scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The present invention provides a kind of design method of spring number of total coils, and the formula of spring number of total coils is:
Spring number of total coils n
tThe number of turns that the number of turns+contact line length 1 that the length of=coil n+ end circle grinding is converted into is converted into.Contact line length is as shown in Figure 1, and number of active coils refers to keep equating the number of turns of pitch.
For the higher spring of quality requirement, the both ends of the surface of spring need keep level, therefore; In production technology, need carry out grinding to the end circle of spring; End circle grinding meeting produces the extra number of turns, and therefore the number of turns that is converted into of the length of end circle grinding should become the part of number of total coils, in addition; Line of contact equally also can produce the extra number of turns, the part that this part also should be converted into the number of turns and become number of total coils.The spring of design can at utmost less number of turns error like this, guarantees the rigidity of spring.
Further, said spring is a cylindrical screw formula spring.
Existing commonly used will hold the circle number of turns to confirm as 1.5 number of total coils to confirm that mode maybe will hold and enclose the number of turns and confirm as rigidity generation that littler value all can make spring than large deviation, as shown in table 1.
The different end circle of table 1. number of turns ratio of rigidity
Can find out through table 1; In the time will holding circle number of turns stuck-at-.5 circle; The spring rate tolerance of producing can reach 10%, and railway vehicle is very strict to the requirement of rigidity tolerance, often about 5%; Therefore the rigidity tolerance that will be caused in the time of will holding circle number of turns stuck-at-.5 circle can not satisfy the requirement of railway vehicle to spring fully; And the design method of spring number of total coils provided by the invention can make the number of coils more accurate with the rigidity tolerance limits+4% in-4%, can satisfy the requirement of the high field of railway vehicle and other finenesses to spring.
The above is merely preferred embodiment of the present invention, is not to be used for limiting practical range of the present invention; If do not break away from the spirit and scope of the present invention, the present invention is made amendment or is equal to replacement, all should be encompassed in the middle of the protection domain of claim of the present invention.
Claims (2)
1. the design method of a spring number of total coils is characterized in that, said spring number of total coils is confirmed by following formula:
The number of turns that the number of turns+contact line length that the length of spring number of total coils=coil+end circle grinding is converted into is converted into.
2. the design method of spring number of total coils according to claim 1 is characterized in that, said spring is a cylindrical screw formula spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100256362A CN102537163A (en) | 2012-02-06 | 2012-02-06 | Design method for total coil number of spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100256362A CN102537163A (en) | 2012-02-06 | 2012-02-06 | Design method for total coil number of spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102537163A true CN102537163A (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100256362A Pending CN102537163A (en) | 2012-02-06 | 2012-02-06 | Design method for total coil number of spring |
Country Status (1)
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| CN (1) | CN102537163A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482089A (en) * | 2014-12-09 | 2015-04-01 | 江西洪都航空工业集团有限责任公司 | Aircraft standard spring calculation method |
| CN109804176A (en) * | 2016-11-01 | 2019-05-24 | 日立汽车系统株式会社 | Vehicle loading equipment with the force application structure for using helical spring |
| CN112347582A (en) * | 2020-11-07 | 2021-02-09 | 保定新胜冷却设备有限公司 | Initial size calculation method for spring type turbulence wire for air cooler of transformer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003222188A (en) * | 2002-01-29 | 2003-08-08 | Hiroshi Kurabayashi | Damping device for structure |
| JP2006052827A (en) * | 2004-08-16 | 2006-02-23 | Tatsuji Ishimaru | Method of designing coil-like elastoplastic damper |
| CN201651137U (en) * | 2009-11-20 | 2010-11-24 | 中国第一汽车集团公司 | Convexity waist drum type helical spring |
| CN202032024U (en) * | 2011-03-31 | 2011-11-09 | 江西富明实业有限公司 | Motorcycle front damping spring |
| CN202031672U (en) * | 2011-03-31 | 2011-11-09 | 江西富明实业有限公司 | Valve spring of automobile engine |
-
2012
- 2012-02-06 CN CN2012100256362A patent/CN102537163A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003222188A (en) * | 2002-01-29 | 2003-08-08 | Hiroshi Kurabayashi | Damping device for structure |
| JP2006052827A (en) * | 2004-08-16 | 2006-02-23 | Tatsuji Ishimaru | Method of designing coil-like elastoplastic damper |
| CN201651137U (en) * | 2009-11-20 | 2010-11-24 | 中国第一汽车集团公司 | Convexity waist drum type helical spring |
| CN202032024U (en) * | 2011-03-31 | 2011-11-09 | 江西富明实业有限公司 | Motorcycle front damping spring |
| CN202031672U (en) * | 2011-03-31 | 2011-11-09 | 江西富明实业有限公司 | Valve spring of automobile engine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482089A (en) * | 2014-12-09 | 2015-04-01 | 江西洪都航空工业集团有限责任公司 | Aircraft standard spring calculation method |
| CN109804176A (en) * | 2016-11-01 | 2019-05-24 | 日立汽车系统株式会社 | Vehicle loading equipment with the force application structure for using helical spring |
| CN112347582A (en) * | 2020-11-07 | 2021-02-09 | 保定新胜冷却设备有限公司 | Initial size calculation method for spring type turbulence wire for air cooler of transformer |
| CN112347582B (en) * | 2020-11-07 | 2022-11-29 | 保定新胜冷却设备有限公司 | Initial size calculation method for spring type turbulence wire for air cooler of transformer |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120704 |