CN102616153B - A kind of tension compensating mechanism for the railway system - Google Patents
A kind of tension compensating mechanism for the railway system Download PDFInfo
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- CN102616153B CN102616153B CN201110037290.3A CN201110037290A CN102616153B CN 102616153 B CN102616153 B CN 102616153B CN 201110037290 A CN201110037290 A CN 201110037290A CN 102616153 B CN102616153 B CN 102616153B
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Abstract
The invention discloses a kind of tension compensating mechanism for the railway system, comprise the parts of the power of affording redress and the first stretch-draw parts of the described balancing force of transmission, also comprise a movable pulley system and one second stretch-draw parts, described the second stretch-draw parts are connected with described the first stretch-draw parts by described movable pulley system, thereby make the tension force on described the first stretch-draw parts be greater than exponentially the described tension force on described the second stretch-draw parts. Tension compensating mechanism of the present invention, adopts movable pulley system, and the pulling force that the moment of torsion of elastomeric element is delivered to the first stretch-draw parts is significantly improved, and meets the increasing permanent tension force requirement of electrified high-speed railway. Meanwhile, mechanical mechanism design reliably, can meet system to reliability, the high life, and high-precision requirement, and also each parts load is evenly rationally, is convenient to installation and maintenance, and the installation and maintenance cost of overall system is lower.
Description
Technical field
The present invention relates to cable power transmission technical field, particularly one and be mainly used in high-speed electric railway systemSystem, is used for providing for the cable carrier cable in the supply network of electric railway or contact wire the tension force of permanent tension forceCompensation arrangement, is also applicable to the same application of power plant or steel plant.
Background technology
In the contact net for power supplying of electric railway, under any weather conditions, built on stilts cable carrier cable (orHoist cable), contact wire (or cable) state in tensioning all the time, to ensure the normal of contact net for power supplyingWork. But due to the impact of objective environment conditions such as expanding with heat and contract with cold, cable carrier cable (or hoist cable), contactLine (or cable) has the variation of length under different weather conditions. Therefore the confession of prior art electrically contactsIn net, having used widely can compensating cable carrier cable or the constant tension compensating mechanism of contact line length, suchThe distance that tension compensating mechanism specifies according to industry standard is fixed on the line bar, wall of contact net for power supplying or tunnelTops etc. are located.
The principle of such tension compensating mechanism is, by a stretch-draw portion being connected with cable carrier cable or contact wirePart provides an external compensation tension force for cable carrier cable or contact wire, to ensure cable carrier cable or contact wireAll the time the normal operating conditions in tensioning, and these stretch-draw parts keep constant in certain compensating lengthTension force.
Above-mentioned external force both can by heavy burden restrict hang certain heavy burden produce, also can be filled by tension compensatingPutting built-in dish spring, torque spring, scroll spring or gravity spring provides.
The electric railway contact net constant proposing with ZL95202821.2 Chinese patent application for No. ZL93246073.9Tension dished spring compensator, using dish spring constant force device as the mechanism that permanent tension force is provided. Taking Fig. 1 as example, dish spring constant forceDevice is connected with the pivotal axis of movable pulley D, and the abseiling one end on movable pulley is fixed, the other end and electric railway tunnelIn road, contact net is connected. Because the deflection of dish spring is little, compensating length is very short, adopts a movable pulley or pulleyThe displacement that group formula displacement amplifying mechanism amplifies dish spring constant force device, although can extend certain compensating length,Still limited, and tension force is extremely unstable in whole compensation process, compensation precision does not reach electric railwayRequirement. Meanwhile, the balancing force of this compensator significantly reduces, and cannot meet the high capacity demand in market.
Also has other forms of constant tension compensating mechanism, for example ZL200510038591.2 and Chinese patent application200810200971.5 number, propose to adopt the constant tension compensating mechanism of plane scroll spring. They are by mendingRepay sheave, change the torque axis of spring into constant tension force, reach compensating cable due to the length of expanding with heat and contract with cold and producingDegree changes. In order to improve load, prior art adopts the moment of torsion that increases spring or the way that reduces the radius of sheave.Adopt the way of the moment of torsion that increases spring, need to improve the thickness of spring. After the thickness of spring increases, not only produceThe technological requirement of spring is harsher, and cost is higher, and because heavy wall spring inner bending stress increases, causesThe life-span of spring itself and whole product declines, and then affects the life-span of whole device. If reduce sheave and adoptThe way of radius, the more needs number of effective coils is reached identical operating distance by that, meanwhile, is arranged on originalCurvature is with regard to very thick steel wire rope or similar stretch-draw parts on very little sheave, and inner bending stress is again by the utmost pointLarge increasing, has had a strong impact on the life-span of product. Both balances are considered in existing design, can only design loadThe device of 1.5 tons, and along with at home flourish of electric railway, on market, proposed 2 tons of loads andThe high accuracy of 2.5 tons, the demand of high reliability devices, meets the requirement of electric railway high speed.
Therefore, need a kind of load higher, do not affect the tension compensating mechanism of life of product simultaneously.
Summary of the invention
Because the above-mentioned defect of prior art the object of this invention is to provide a kind of load higher, do not affect simultaneouslyThe tension compensating mechanism of life of product.
For achieving the above object, the invention provides a kind of tension compensating mechanism for the railway system, comprise and providingThe parts of balancing force and transmit the first stretch-draw parts of described balancing force, also comprise a movable pulley system and one secondDraw parts, described the second stretch-draw parts are connected with described the first stretch-draw parts by described movable pulley system, thereby makeTension force on described the first stretch-draw parts is greater than the described tension force on described the second stretch-draw parts exponentially.
In preferred embodiments of the present invention, also at least comprise fixing support, and relatively turnable main shaftWith housing; Between described main shaft and described housing, be provided with elastomeric element and provide a reaction with betweenIn the moment of torsion of described the second stretch-draw parts; Described movable pulley system comprises at least one movable pulley and described movingThe abseiling that pulley slides thereon; Described abseiling comprises stiff end and traction end; Described main shaft or described housing itOne is connected with described support, described in another of described main shaft and described housing is connected by described movable pulley systemThe first stretch-draw parts; The pivotal axis of the described movable pulley of described movable pulley system and described the first stretch-draw parts phaseConnect the described stiff end of the described abseiling in described movable pulley system and described tension compensating mechanism or external stabilityThing is fixedly connected with, the described traction end of described abseiling by the second stretch-draw parts and described main shaft and described housing itAnother connection; By described movable pulley system, the described moment of torsion of described elastomeric element is delivered to described firstDraw the pulling force of parts to be significantly improved.
Further, one of described main shaft or housing are fixed or are nonrotatably mounted tO on described support.
In a preferred embodiments of the present invention, described movable pulley system only includes one-level movable pulley. At thisIn another bright preferred embodiments, described movable pulley system comprises multistage movable pulley, described movable pulley systemThe pivotal axis of final stage movable pulley be connected with described the first stretch-draw parts, the elementary moving cunning in described movable pulley systemThe described stiff end of described abseiling of wheel is fixedly connected with described tension compensating mechanism or external stability thing, described at the beginning ofAnother of the described traction end of the described abseiling of level movable pulley and described main shaft and described housing is by the second stretch-drawParts connect. Further, described movable pulley system also comprises fixed pulley, for changing pulling force direction of transfer.
In preferred embodiments of the present invention, described tension compensating mechanism is constant tension compensating mechanism.
Further, described constant tension compensating mechanism comprises, as the plane scroll spring of described elastomeric element, instituteStating plane scroll spring is arranged between described housing and described main shaft; The end of described main shaft or described housing arrangesThere is rope sheave, on described rope sheave, offer rope rail, on described rope rail, be provided with described the second stretch-draw parts, describedTwo stretch-draw parts one end are connected with described main shaft or described housing, the other end by connector 9 with described inThe described traction end of the described abseiling of elementary movable pulley connects. Further, described rope rail be shaped as gradually open formShaped form, the evolute shape of described gradually open form curve is consistent with the torque curve of described plane scroll spring, protectsCard is exported the constant of pulling force.
Further, the quantity of described plane scroll spring is multiple.
In preferred embodiments of the present invention, also comprise a braking mechanism, when described the first stretch-draw parts fractureWhile causing described tension compensating mechanism to lose efficacy, described braking mechanism is triggered and realizes brake function.
Tension compensating mechanism of the present invention, the perseverance that the moment of torsion that adopts movable pulley system to amplify elastomeric element produces is openedPower, the pulling force that makes it to be delivered to described stretch-draw parts is significantly improved, and meets electrified high-speed railway more nextLarger permanent tension force requirement. Meanwhile, mechanical mechanism design reliably, can meet system to reliability, the high life,High-precision requirement, each parts load evenly rationally, is convenient to installation and maintenance, and life of product is longer, overall systemInstallation and maintenance cost lower, can meet market to the even more high accuracy of top load of 2 tons of loads and 2.5 tons,The demand of high reliability devices.
Below with reference to accompanying drawing, the technique effect of design of the present invention, concrete structure and generation is described further,To understand fully object of the present invention, feature and effect.
Brief description of the drawings
Fig. 1 is the structural representation of the dish spring compensation arrangement of prior art;
Fig. 2 is the structural representation of first embodiment of the present invention;
Fig. 3 is the structural representation of second embodiment of the present invention;
Fig. 4 is the structural representation of the 3rd embodiment of the present invention.
Detailed description of the invention
Tension compensating mechanism in the embodiment of the present invention or constant tension compensating mechanism can be any existing structures, exampleAs employing and ZL200510038591.2 and Chinese patent application 200810200971.5,201010181895.5 and201020192675.8 the similar structure of employing plane scroll spring of number proposition.
Embodiment 1:
As shown in Figure 2, tension compensating mechanism 40 at least comprises fixing support 46, and relatively turnable masterAxle 41 and housing 42. Steel wire rope 30 as the first stretch-draw parts is connected with cable carrier cable or contact wire.Between main shaft 41 and housing 42, be provided with torque spring or plane scroll spring (as shown in phantom in Figure 2)As elastomeric element, provide a moment of torsion that reacts on steel wire rope 30 with between. The end of housing 42Portion is provided with rope sheave, offers the gradually rope rail of open form curve on rope sheave, on rope rail, is provided with as the second stretch-draw portionThe steel wire rope 43 of part, steel wire rope 43 one end are connected with main shaft 41 or housing 42. This is the expansion of open form curve graduallyWire shaped is consistent with the torque curve of plane scroll spring, can effectively ensure to export the constant of balancing force.
According to the present invention, also comprise a movable pulley system 10. In the present embodiment, movable pulley system 10 is wrappedDraw together a movable pulley 2 and an abseiling 1, movable pulley 2 slides in abseiling 1.
But difference with the prior art is, the other end of steel wire rope 43 is by a connector 9 and movable pulley2 abseiling 1 connects. The pivotal axis 201 of movable pulley 2 is connected with steel wire rope 30, and one end of abseiling 1 is for fixingEnd 11, is fixed on support 46; The other end is traction end 12, on a connector 9 and housing 42Steel wire rope 43 connect. Correspondingly, the pulling force on steel wire rope 30 is about abseiling 1 (or steel wire rope 43)Twice, also, by this movable pulley system, the moment of torsion of elastomeric element is delivered to cable carrier cable or contact wirePulling force can be significantly improved.
In illustrated embodiment, main shaft 41 is connected with support 46 by hold-down arm 45, and housing 42 is by movingPulley system 10 is connected to steel wire rope 30. Certainly in other embodiments of the invention, also can be conversely,Adopt housing 42 to be connected with support 46, main shaft 41 is by movable pulley system 10 stube cable carrier cables or connectThe mode of touching line, also can realize same object of the present invention, and the present invention is not limited this.
Embodiment 2:
As shown in Figure 3, the present embodiment is similar to Example 1, and difference is that movable pulley system 10 also comprises oneFixed pulley 3. The stiff end 11 of fixed pulley 3 and abseiling 1 is separately fixed on a fixture 20, for example tunnelWall, column, body of wall etc. By fixed pulley 3, pulling force direction of transfer changes, and is suitable for tension compensating mechanismThe situation that installation site is limited. The operation principle of its movable pulley system is identical with embodiment 1, does not add and repeats here.
Embodiment 3:
As shown in Figure 4, the movable pulley system 10 in the present embodiment has increased again one-level on the basis of embodiment 2Movable pulley, also comprises second level movable pulley 4 and an abseiling 5, and movable pulley 4 slides in abseiling 5. Movable pulley4 pivotal axis 401 is connected with steel wire rope 30. Correspondingly, the pulling force on steel wire rope 30 be about abseiling 1 (orSteel wire rope 43) four times, the pulling force that the moment of torsion of elastomeric element is delivered to cable carrier cable or contact wire is enteredOne step increases.
In like manner, in other embodiments of tension compensating mechanism of the present invention, can increase again multistage movable pulleyCarry out further to amplify again pulling force, or increase fixed pulley changes power transmission direction.
In other embodiments of tension compensating mechanism of the present invention, can also arrange as Chinese patent application201010181895.5 and the braking mechanism proposing for No. 201020192675.8, when steel wire rope 30 or be attached theretoCable carrier cable or contact wire when fracture, braking mechanism is had an effect, and prevents from damaging tension compensating mechanism, sends outRaw security incident.
In the time that use has the constant tension compensating mechanism of plane scroll spring, in other embodiments of the present invention,Multiple plane scroll springs can also be set simultaneously, further improve the bearing capacity of device.
More than describe preferred embodiment of the present invention in detail. The ordinary skill that should be appreciated that this area withoutCreative work just can design according to the present invention be made many modifications and variations. Therefore, in the art allTechnical staff is under this invention's idea on the basis of existing technology by logical analysis, reasoning, or a limited experimentAvailable technical scheme, all should be in by the determined protection domain of claims.
Claims (12)
1. for a tension compensating mechanism for the railway system, comprise that the parts of the power of affording redress are with described in transmissionThe first stretch-draw parts of balancing force, is characterized in that, also comprise a movable pulley system and one second stretch-draw parts,Described the second stretch-draw parts are connected with described the first stretch-draw parts by described movable pulley system, thereby described in makingTension force on the first stretch-draw parts is greater than the described tension force on described the second stretch-draw parts exponentially;
Described tension compensating mechanism also at least comprises fixing support, and relatively turnable main shaft and housing;Between described main shaft and described housing, be provided with elastomeric element with between provide one react on described inThe moment of torsion of the second stretch-draw parts;
Described movable pulley system comprises at least one movable pulley and a cunning that described movable pulley slides thereonRope; Described abseiling comprises stiff end and traction end;
One of described main shaft or described housing are connected with described support, and another of described main shaft and described housing leads toCross described movable pulley system and connect described the first stretch-draw parts; Wherein,
The pivotal axis of the described movable pulley of described movable pulley system is connected with described the first stretch-draw parts, described movingThe described stiff end of the described abseiling in pulley system and described tension compensating mechanism or external stability thing are fixedConnect, another of the described traction end of described abseiling and described main shaft and described housing is by the second stretch-draw partsConnect; By described movable pulley system, the described moment of torsion of described elastomeric element is delivered to described the first stretch-draw portionThe pulling force of part is significantly improved.
2. tension compensating mechanism as claimed in claim 1, is characterized in that: described main shaft is fixed or can notBe arranged on rotationally on described support.
3. tension compensating mechanism as claimed in claim 1, is characterized in that: described housing is fixed or can notBe arranged on rotationally on described support.
4. tension compensating mechanism as claimed in claim 1, is characterized in that: described movable pulley system is only wrappedDraw together one-level movable pulley.
5. tension compensating mechanism as claimed in claim 1, is characterized in that: described movable pulley system comprisesMultistage movable pulley, the pivotal axis of the final stage movable pulley of described movable pulley system and described the first stretch-draw parts phaseConnect the described stiff end of the described abseiling of the elementary movable pulley in described movable pulley system and described tension compensatingDevice or external stability thing be fixedly connected with, the described traction end of the described abseiling of described elementary movable pulley with described inAnother of main shaft and described housing is connected by the second stretch-draw parts.
6. tension compensating mechanism as claimed in claim 5, is characterized in that: described movable pulley system is also wrappedDraw together fixed pulley, for changing pulling force direction of transfer.
7. tension compensating mechanism as claimed in claim 5, is characterized in that: described tension compensating mechanism isConstant tension compensating mechanism.
8. tension compensating mechanism as claimed in claim 7, is characterized in that: described constant tension compensating mechanismComprise, as the plane scroll spring of described elastomeric element, described plane scroll spring is arranged on described housingAnd between described main shaft; The end of described main shaft or described housing is provided with rope sheave, on described rope sheave, offersRope rail, is provided with described the second stretch-draw parts, described second stretch-draw parts one end and described master on described rope railAxle or described housing are connected, and the other end is by the institute of the described abseiling of a connector and described elementary movable pulleyStating traction end connects.
9. tension compensating mechanism as claimed in claim 8, is characterized in that: being shaped as gradually of described rope railOpen form shaped form, the evolute shape of described gradually open form curve and the torque curve one of described plane scroll springCause.
10. tension compensating mechanism as claimed in claim 8, is characterized in that: described plane scroll springQuantity be multiple.
11. tension compensating mechanisms as claimed in claim 6, is characterized in that: described tension compensating mechanismFor constant tension compensating mechanism.
12. tension compensating mechanisms as claimed in claim 1, is characterized in that: also comprise a braking mechanism,In the time that described the first stretch-draw parts fracture causes described tension compensating mechanism to lose efficacy, described braking mechanism is triggeredRealize brake function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110037290.3A CN102616153B (en) | 2011-01-31 | 2011-01-31 | A kind of tension compensating mechanism for the railway system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110037290.3A CN102616153B (en) | 2011-01-31 | 2011-01-31 | A kind of tension compensating mechanism for the railway system |
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| CN102616153A CN102616153A (en) | 2012-08-01 |
| CN102616153B true CN102616153B (en) | 2016-05-11 |
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| CN201110037290.3A Active CN102616153B (en) | 2011-01-31 | 2011-01-31 | A kind of tension compensating mechanism for the railway system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| ITUB20155259A1 (en) * | 2015-10-30 | 2017-04-30 | Tesmec Spa | CABLE WINDING AND COUPLING UNIT FOR CABLES-SHAPING MACHINES |
| CN109693580B (en) * | 2017-10-24 | 2023-09-08 | 扬州东方吊架有限公司 | Combined pulley compensation device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19932195C1 (en) * | 1999-07-09 | 2000-10-19 | Siemens Ag | Re-tensioning appliance for overhead traction-line railway catenary system contact wires and track cables |
| EP1418084A1 (en) * | 2002-10-29 | 2004-05-12 | Richard Bergner Elektroarmaturen GmbH & Co.KG | Tensioning pulley |
| CN201009764Y (en) * | 2006-12-26 | 2008-01-23 | 周建科 | Adjustable integral hanging device with constant tension force and eliminating hard spot |
| CN101229782A (en) * | 2007-01-23 | 2008-07-30 | 帖荣俊 | Constant tension spring compensating unit |
| CN201320977Y (en) * | 2008-07-25 | 2009-10-07 | 甘永忠 | Contact net compensation device with brake protection function for broken ropes |
| CN201677761U (en) * | 2009-12-15 | 2010-12-22 | 克恩-里伯斯(太仓)有限公司 | Tension compensation device with braking function |
| CN201922961U (en) * | 2011-01-31 | 2011-08-10 | 克恩-里伯斯(太仓)有限公司 | Tension compensating device for railway system |
-
2011
- 2011-01-31 CN CN201110037290.3A patent/CN102616153B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19932195C1 (en) * | 1999-07-09 | 2000-10-19 | Siemens Ag | Re-tensioning appliance for overhead traction-line railway catenary system contact wires and track cables |
| EP1418084A1 (en) * | 2002-10-29 | 2004-05-12 | Richard Bergner Elektroarmaturen GmbH & Co.KG | Tensioning pulley |
| CN201009764Y (en) * | 2006-12-26 | 2008-01-23 | 周建科 | Adjustable integral hanging device with constant tension force and eliminating hard spot |
| CN101229782A (en) * | 2007-01-23 | 2008-07-30 | 帖荣俊 | Constant tension spring compensating unit |
| CN201320977Y (en) * | 2008-07-25 | 2009-10-07 | 甘永忠 | Contact net compensation device with brake protection function for broken ropes |
| CN201677761U (en) * | 2009-12-15 | 2010-12-22 | 克恩-里伯斯(太仓)有限公司 | Tension compensation device with braking function |
| CN201922961U (en) * | 2011-01-31 | 2011-08-10 | 克恩-里伯斯(太仓)有限公司 | Tension compensating device for railway system |
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