CN201082943Y - Adjustable III-type spring bar - Google Patents
Adjustable III-type spring bar Download PDFInfo
- Publication number
- CN201082943Y CN201082943Y CNU2007201151998U CN200720115199U CN201082943Y CN 201082943 Y CN201082943 Y CN 201082943Y CN U2007201151998 U CNU2007201151998 U CN U2007201151998U CN 200720115199 U CN200720115199 U CN 200720115199U CN 201082943 Y CN201082943 Y CN 201082943Y
- Authority
- CN
- China
- Prior art keywords
- iii type
- elastic bar
- eccentric
- fastening pressure
- adjustable
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses an adjustable III type elastic bar, belonging to the railway steel rail and rail bearing connecting device technical field. The utility model comprises the elastic bar and is characterized in that: an eccentric adjustment threaded sleeve is threaded connected with a toe-end of the elastic bar, and the cross section of the eccentric adjustment threaded sleeve is of a polygonized structure; the adjustable III type elastic bar has a novel concept, a reasonable structure and simple fabrication technology, is not easy to dismantle and fall off, and overcomes the defect that fastening pressure can not be adjusted. The III type elastic bar adopting the structure can conveniently and timely adjust elastic stroke of the elastic bar, ensures that the fastening pressure of the elastic bar is controlled within the required ranged and the dispersion of the fastening pressure is reduced; therefore requirements of III type fasteners to the fastening pressure of rails are guaranteed, and operating requirements of current elastic bars are met, thereby the III type elastic bar can fully play the characteristics of big fastening pressure and good anti-creeping property, prolong the use cycle of products, guarantee the safety, and reduce the use cost appropriately as well.
Description
Technical field
The utility model belongs to rail and sleeper linkage technical field on the railroad track, is specifically related to a kind of adjustable III type spring.
Background technology
III type spring is that the buckle press that spring bullet Cheng Weiyi is produced when installing is realized rail is fixed, its bullet journey of the III type spring that generally uses is fixing nonadjustable at present, therefore after elastic bar fastener and rail install and fix, spring just can not be adjusted the location that the buckle press of rail is played journey, through use after a while, pad is placed on rubber mat plate between rail and the sleeper and is subjected to that train impacts and the effect of break-in changes, circuit catches cold to freeze and after bridge sinks and railway roadbed descends elastic-strip pressure is changed, also have the variation of spring from assemblies such as the residual changes of the loose influence generation of the interior tissue of experiencing, the variation of withholding distance and the decay of elastic-strip pressure have all been caused, the buckle press that just can not guarantee each spring reaches instructions for use, can not the quality of circuit be control effectively, have a strong impact on safety of railway traffic, also shorten the application life of III type spring, increased use cost.
The utility model content
For overcoming problems of the prior art, the utility model aims to provide the adjustable III type of a kind of bullet journey spring technical scheme, makes III type spring can adapt to the variation of withholding distance, guarantees that buckle press meets the control requirement.
Described adjustable III type spring comprises spring, and the toe-end that it is characterized in that spring is spirally connected the eccentric swivel nut of adjusting is set, and the described eccentric swivel nut cross section of adjusting is polygonized structure.
Described adjustable III type spring is characterized in that the described eccentric swivel nut cross section of adjusting is the inequilateral polygonized structure.
Described adjustable III type spring is characterized in that described eccentric adjustment swivel nut is eccentric hexagonal structure.
Described adjustable III type spring is characterized in that described eccentric adjustment swivel nut is eccentric heptagon structure.
Described adjustable III type spring is characterized in that described eccentric adjustment swivel nut is eccentric eight-sided formation.
Described adjustable III type spring is characterized in that the eccentric vertical distance a＜b＜c＜d＜e＜f that adjusts the every limit of swivel nut of toe-end center and hexagon.
Above-mentioned adjustable III type spring is novel, rational in infrastructure, manufacturing process is simple, be difficult in the transportation decomposing coming off, overcome the shortcoming that conventional I II type elastic-strip pressure can not be adjusted, adopt the III type spring of this structure to make things convenient for, in time adjust spring bullet journey, guarantee that the buckle press of spring can adjust the scope that is controlled at requirement, reduce the buckle press discreteness, thereby guaranteed that III type fastener is to the requirement of circuit buckle press, and meet the instructions for use of existing III type spring, it is big to make III type spring give full play to buckle press, the characteristics that the anti-creep performance is good, prolong the product life cycle, when guaranteeing safety, can suitably reduce use cost.
Description of drawings
Figure 1 shows that the utility model structural representation;
Figure 2 shows that Fig. 1 plan structure schematic diagram;
Figure 3 shows that Fig. 1 side-looking structural representation;
Among the figure: 1-spring, eccentric swivel nut, the 3-toe-end adjusted of 2-.
The specific embodiment
The utility model is described in further detail below in conjunction with Figure of description:
As shown be adjustable III type spring, the toe-end 3 of spring 1 is spirally connected the eccentric swivel nut 2 of adjusting is set, rotating eccentricity is adjusted swivel nut 2 can make toe-end 3 centers of spring 1 and the vertical distance of the flange of rail change, realize the adjustment of spring toe-end 3 and flange of rail distance, in installing and using, after withholding variable in distance, buckle press decline, can improve buckle press by rotating the eccentric swivel nut 2 of adjusting, III type spring is withheld to be controlled in the claimed range, reduce the buckle press discreteness, thereby guaranteed III type fastener to the requirement of circuit buckle press, and met the instructions for use of existing III type spring.Described eccentric swivel nut 2 cross sections of adjusting are polygonized structure, as eccentric hexagonal structure, the eccentric vertical distance of adjusting swivel nut 2 every limits of toe-end 3 centers and hexagon is used a, b, c, d, e, f respectively, satisfy a＜b＜c＜d＜e＜f, the rotation hexagon is eccentric to be adjusted swivel nut 2 and can make in the scopes such as playing Cheng Shixian-2～+ 3 millimeter ,-3～+ 2 millimeters and adjust.Be used in combination the on-the-spot needs of adjusting, the eccentric swivel nut 2 of adjusting also can adopt eccentric polygonized structures such as eccentric heptagon structure, eccentric eight-sided formation.Described eccentric adjustment swivel nut 2 also can be designed to cross section and be the inequilateral polygonized structure, makes the eccentric orfice center of circle of off-centre adjustment swivel nut 2 vertical with corresponding limit with the line of each limit mid point, is convenient to simplified manufacturing technique and scene adjustment.
Claims (6)
1. adjustable III type spring comprises spring (1), and the toe-end (3) that it is characterized in that spring (1) is spirally connected the eccentric swivel nut (2) of adjusting is set, and described eccentric swivel nut (2) cross section of adjusting is polygonized structure.
2. adjustable III type spring as claimed in claim 1 is characterized in that described eccentric swivel nut (2) cross section of adjusting is the inequilateral polygonized structure.
3. adjustable III type spring as claimed in claim 1 is characterized in that the described eccentric swivel nut (2) of adjusting is eccentric hexagonal structure.
4. adjustable III type spring as claimed in claim 1 is characterized in that the described eccentric swivel nut (2) of adjusting is eccentric heptagon structure.
5. adjustable III type spring as claimed in claim 1 is characterized in that the described eccentric swivel nut (2) of adjusting is eccentric eight-sided formation.
6. adjustable III type spring as claimed in claim 3 is characterized in that the eccentric vertical distance a＜b＜c＜d＜e＜f that adjusts the every limit of swivel nut (2) of toe-end (3) center and hexagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201151998U CN201082943Y (en) | 2007-09-17 | 2007-09-17 | Adjustable III-type spring bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201151998U CN201082943Y (en) | 2007-09-17 | 2007-09-17 | Adjustable III-type spring bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201082943Y true CN201082943Y (en) | 2008-07-09 |
Family
ID=39625407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201151998U Expired - Fee Related CN201082943Y (en) | 2007-09-17 | 2007-09-17 | Adjustable III-type spring bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201082943Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625234A (en) * | 2018-05-31 | 2018-10-09 | 中国铁道科学研究院铁道建筑研究所 | One kind being suitable for the non-bolt fastener assemblies that axis weighs 35 ~ 40 tons of heavy haul railways |
-
2007
- 2007-09-17 CN CNU2007201151998U patent/CN201082943Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625234A (en) * | 2018-05-31 | 2018-10-09 | 中国铁道科学研究院铁道建筑研究所 | One kind being suitable for the non-bolt fastener assemblies that axis weighs 35 ~ 40 tons of heavy haul railways |
| WO2019227515A1 (en) * | 2018-05-31 | 2019-12-05 | 中国铁道科学研究院铁道建筑研究所 | Boltless fastener assembly suitable for heavy-duty railway with axle load of 35 to 40 tons |
| CN108625234B (en) * | 2018-05-31 | 2020-06-26 | 中国铁道科学研究院铁道建筑研究所 | Bolt-free fastener assembly suitable for heavy haul railway with axle weight of 35-40 tons |
| US11162227B2 (en) | 2018-05-31 | 2021-11-02 | China Academy Of Railway Sciences Corporation Limited Railway Engineering Research Institute | Boltless fastener assembly for heavy haul railway with axle load of 35-40 tons |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080709 Termination date: 20130917 |