CN102029925A - Torsion spring-based electrified railway contact network constant-tension compensation device - Google Patents
Torsion spring-based electrified railway contact network constant-tension compensation device Download PDFInfo
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- CN102029925A CN102029925A CN201010579512XA CN201010579512A CN102029925A CN 102029925 A CN102029925 A CN 102029925A CN 201010579512X A CN201010579512X A CN 201010579512XA CN 201010579512 A CN201010579512 A CN 201010579512A CN 102029925 A CN102029925 A CN 102029925A
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Abstract
The invention discloses a torsion spring-based electrified railway contact network constant-tension compensation device. The device comprises a bracket with a spindle and an involute geneva wheel, wherein the involute geneva wheel is fixed on the spindle; a torsion spring is also sleeved on the spindle; one end of the torsion spring is fixed on the bracket; and the other end of the torsion spring is fixed on the involute geneva wheel. Compared with the prior art, the device utilizes a cylindrical torsion spring as a drive device, the structure is compact, the volume is small and the production technology is mature. The existing compensation device which takes a spiral spring as a drive source has the shortcomings of relatively large volume, heavy weight, complicated structure and inaccurate torque calculation, but the design theory of the cylindrical torsion spring is mature, and the change of torque with the torsion angle can be accurately calculated.
Description
Technical field:
The present invention relates to the electrified railway power supply technical field, specifically is a kind of electrification railway contact net constant tension compensating mechanism.
Background technology:
Contact system is to set up and to the special transmission line of electricity of block of bow collector of electric locomotive power supply along electrified railway,, be the important component part of contact system directly to the electric wireline (contact wire) of electric locomotive power supply and the catenary (twisted wire) that bears contact system weight and have certain ability to transmit electricity.In power system of electric railway, contact system automatic tension compensating device is one of key device in the contact net equipment, and it is the important means that ensures the electric train safe operation.Contact system arranges that to the omnidistance segmentation in second ground its every section is called an anchor section from first ground, casts anchor in the two ends of anchor section.Two parts of facing the linking of anchor section intersection mutually are called overlap.Usually be provided with tension compensating mechanism at anchorage, its effect is to make contact system keep certain force of strain, reduces the contact loss rate of pantograph.Expanded with heat and contract with cold action length when changing in conversion in season, temperature traverse, clue, and tension force, elasticity and the Dao Gao's of the net of can automatically keeping in touch is constant.The development of tension compensating mechanism, significant to electrification, modernization and the high speed of realizing railway.Current domestic and international contact system automatic tension compensator is to be compensated for as the master with " pulley---bob top " gravity type boat davit mostly, this compensating form major advantage is simply, practical, cost is low, but its shortcoming is also very obvious, mainly be have that wind stability is poor, maintenance workload is big, need bigger installing space and not attractive in appearance etc.Other has liquid gas compensator and spring tensioner etc., but all owing to cost high stability difference does not have to promote.
Now also have with the compensating device of volute spiral spring as drive source, but have that volume is big, weight is heavier, complex structure or shortcoming that can't the accurate Calculation moment of torsion.
Summary of the invention
Technical matters to be solved by this invention is at above-mentioned the deficiencies in the prior art, but and provides the electrification railway contact net constant tension compensating mechanism based on torsion spring of little, easy for installation easy care of a kind of volume and moment of torsion accurate Calculation.
For solving the problems of the technologies described above, the technical solution used in the present invention is: comprise support and involute sheave with main shaft, described involute sheave is fixed on the main shaft, it is characterized in that: on described main shaft, also be arranged with torsion spring, one end of this torsion spring is fixed on the support, and the other end of torsion spring is fixed on the involute sheave.
Described torsion spring is two, is separately positioned on the both sides of involute sheave.
Described torsion spring is set on the torsion spring guide rod, and this torsion spring guide rod is captiveed joint with described main shaft.
The present invention is contained in several torsion springs and involute wheel string in parallel on the guide rod (main shaft), makes total not only simply but also reliable.Adopt the torsion spring and the involute wheel optimization of matching of combination in parallel, by the radius that the involute rotating shaft constantly changes, utilize principle of moment balance to export permanent tension force the continuous moment of torsion that changes of torsion spring.Compared with prior art, this device uses the cylinder torsion spring as actuating device, compact conformation, and volume is little, mature production technology.Existing with the compensating device of volute spiral spring as drive source, have that volume is big, weight is heavier, complex structure or a shortcoming that can't the accurate Calculation moment of torsion, and cylinder torsion spring design theory maturation can accurately calculate the variation of moment of torsion with windup-degree.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is another embodiment of the present invention scheme drawing.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is elaborated, as shown in Figure 1, compensating device of the present invention, comprise support 6, be connected with main shaft 4 at an end of support 6, the other end connects base or clip, and main shaft 4 adopts end caps to fix, main shaft 4 is a castellated shaft, be fixed with involute sheave 1 on castellated shaft, be socketed with torsion spring 2 on main shaft 4, torsion spring is two, one end of torsion spring 2 is fixed on the support 6, and the other end is fixed on the involute sheave 1.
Claims (3)
1. electrification railway contact net constant tension compensating mechanism based on torsion spring, comprise the have main shaft support (6) and the involute sheave (1) of (4), described involute sheave (1) is fixed on the main shaft (4), it is characterized in that: on described main shaft (4), also be arranged with torsion spring (2), one end of this torsion spring is fixed on the support (6), and the other end of torsion spring is fixed on the involute sheave (1).
2. the electrification railway contact net constant tension compensating mechanism based on torsion spring according to claim 1 is characterized in that: described torsion spring (2) is two, is separately positioned on the both sides of involute sheave (1).
3. the electrification railway contact net constant tension compensating mechanism based on torsion spring according to claim 2, it is characterized in that: described torsion spring (2) is set on the torsion spring guide rod (5), and this torsion spring guide rod (5) is captiveed joint with described main shaft (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010579512XA CN102029925A (en) | 2010-12-09 | 2010-12-09 | Torsion spring-based electrified railway contact network constant-tension compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010579512XA CN102029925A (en) | 2010-12-09 | 2010-12-09 | Torsion spring-based electrified railway contact network constant-tension compensation device |
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| Publication Number | Publication Date |
|---|---|
| CN102029925A true CN102029925A (en) | 2011-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010579512XA Pending CN102029925A (en) | 2010-12-09 | 2010-12-09 | Torsion spring-based electrified railway contact network constant-tension compensation device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110795877A (en) * | 2019-10-23 | 2020-02-14 | 北京航空航天大学 | Fluid-solid coupling-based pantograph actuating motor torque compensation amount calculation method |
| CN110852006A (en) * | 2019-10-23 | 2020-02-28 | 北京中车赛德铁道电气科技有限公司 | Method for calculating torque compensation of pantograph actuating motor based on wind pressure sensing |
| CN112525124A (en) * | 2019-07-11 | 2021-03-19 | 南京普泰德电气科技有限公司 | Sensing system based on a value measurement method of railway contact net spring compensation device |
-
2010
- 2010-12-09 CN CN201010579512XA patent/CN102029925A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112525124A (en) * | 2019-07-11 | 2021-03-19 | 南京普泰德电气科技有限公司 | Sensing system based on a value measurement method of railway contact net spring compensation device |
| CN112525123A (en) * | 2019-07-11 | 2021-03-19 | 南京普泰德电气科技有限公司 | Method for measuring a value of railway contact net spring compensation device |
| CN112525123B (en) * | 2019-07-11 | 2022-06-21 | 南京普泰德电气科技有限公司 | Method for measuring a value of railway contact net spring compensation device |
| CN112525124B (en) * | 2019-07-11 | 2022-07-15 | 南京普泰德电气科技有限公司 | Sensing system based on a value measurement method of railway contact net spring compensation device |
| CN110795877A (en) * | 2019-10-23 | 2020-02-14 | 北京航空航天大学 | Fluid-solid coupling-based pantograph actuating motor torque compensation amount calculation method |
| CN110852006A (en) * | 2019-10-23 | 2020-02-28 | 北京中车赛德铁道电气科技有限公司 | Method for calculating torque compensation of pantograph actuating motor based on wind pressure sensing |
| CN110852006B (en) * | 2019-10-23 | 2023-04-25 | 北京中车赛德铁道电气科技有限公司 | Method for calculating torque compensation amount of pantograph actuating motor based on wind pressure sensing |
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Application publication date: 20110427 |