CN201002534Y

CN201002534Y - Metal rope tension compensator

Info

Publication number: CN201002534Y
Application number: CNU200720031086XU
Authority: CN
Inventors: 史小宜; 史尧
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-01-23
Filing date: 2007-01-23
Publication date: 2008-01-09
Anticipated expiration: 2017-01-23

Abstract

The utility model refers to a metal wire tension compensator, which compensates the tension to an electric railway power feed contact line and a force bear cable by adopting the passive adaptive technique. A closed system is mainly composed of an accumulation canister, an actuation cylinder, a piston type actuator rod, and a built-in bush with a thermo bulb and a filling macromolecule elastomer. The macromolecule elastomer and the temperature sensitive gas expand or contract according to the environment temperature variation thus the piston type actuator rod is retracted or protruded to compensate the length change of the exterior contact line or the force bearing cable caused by the temperature variation. By selecting the temperature sensitive gas and the macromolecule elastomer filling parameter reasonably and precisely, expansion amount of the piston type actuator rod equals to the length change of the line caused by the temperature fluctuation, and the tension is ensured to be constant. The utility model has the advantages of being simple in structure, reliable in function, leakage free, small in volume, low in cost and easy in promotion, which can fully meet the demand of tension compensation of the electric railway and the urban rail traffic catenary.

Description

Metal clue tension compensator

Technical field the utility model relates to a kind of electrified railway power supply contact system thread tension force compensator, adopts the passive self-adaptive mode, belongs to the railway power supply equipment technical field.

When being temperature Change, regulates by background technology electrification railway contact net tension compensator the important device of compensation tension force.Existing traditional tension compensator mainly is to adopt assembly pulley to add the frame mode that weighs down the stone roller piece, and problem is to take up room greatly, installs complicatedly especially on tunnel, bridge, invest greatly again, meets swing when blowing, and causes repetitive load easily, causes the generation of broken string accident.In recent years several hydraulic tension compensating devices newly occurred, Chinese patent ZL9424331.9, ZL96202091.5, ZL 99234670.3 etc. openly introduced.These several device solves the big problem that takes up room, install also simply relatively, own wt also alleviates to some extent, and the problem of appearance is: inner medium of filling is a hydraulic oil, there is leakage phenomenon to take place under pressure, causes the tension compensator functions of use to be affected.Owing to there is such defective, such device is not widely adopted in electrified railway as yet.

Summary of the invention the utility model purpose provides a kind of metal clue tension compensator, adopt the passive self-adaptive technology, structural group is synthesized closed system, macromolecular elastomer is done the accumulation of energy medium, utilize the characteristics of its response to temperature, flowing power, visoelasticity, easy sealing, no leak, effectively guarantee the good realization of tension compensator function.

The purpose of this utility model is to realize like this; Metal clue compensator, it comprises compositions such as connector, bar cover, boxlike scale graduation, rubber ring, block nut, through-flow mouth, suspension ring, accumulation of energy tube, displacement cylinder, piston type throw rod, quick temperature coating, macromolecular elastomer, bulb, check valve, nut, afterbody joint, air extractor vent, filling mouth.Specific constructive form is arranged as: the intracardiac displacement cylinder that overlapping in the accumulation of energy tube, and the two-port seal with elastometic washer, the piston type throw rod is sealed in the displacement cylinder; Bulb is contained in the lower right of accumulation of energy tube and passes through the inside filling temperature gas of check valve; Macromolecular elastomer installs to the accumulation of energy tube by the filling mouth and enters in the displacement cylinder through through-flow mouthful; Piston type throw rod head links to each other with connector, is with the expansion link cover on the bar; Nut, block nut, be spun on the displacement cylinder two ends respectively, be equipped with the boxlike scale graduation on the block nut upper left side, the other end of boxlike scale graduation is fixed on the connector, the scale graduation amount of being used for throw rod collapsing length; The afterbody joint is connected in its left side mutually with the displacement cylinder lower end and leaves air extractor vent, and the screw on the afterbody joint links to each other with outside anchor post; Accumulation of energy tube uppermost layer all scribbles quick temperature coating, at its upper right side suspension ring is housed, and locatees when being used to compensator is installed.

The working process of metal clue tension compensator is: externally by quick temperature coating induction is transmitted in the accumulation of energy tube during air environment temperature build-up, make rubber bulb gas and macromolecular elastomer expanded by heating, under internal pressure unmodified situation, macromolecular elastomer in the accumulation of energy tube flows into displacement cylinder through through-flow mouthful, piston type throw rod retraction being absorbed be connected needs the outside contact wire or the catenary that compensate on the connector, the length variations part that produces because of temperature build-up; By quick temperature coating induction is transmitted in the accumulation of energy tube when externally ambient temperature reduces, make rubber bulb gas and macromolecular elastomer meet cold contraction, under internal pressure unmodified situation, macromolecular elastomer in the displacement cylinder enters the accumulation of energy tube through through-flow mouth, the piston type throw rod is stretched out being connected outside contact wire of connector or catenary, partly compensate because of ambient temperature reduces the length variations that produces.By the selection of quick accurately wet body and macromolecular elastomer filling parameter rationally, be that the stroke of piston type throw rod equals clue just because of the caused length variations amount of gradient of temperature, and guarantee its constant tension.

The utility model mainly is to adopt the passive self-adaptive technical approach, based on the ring set combined structure design, utilize the macromolecular elastomer accumulation of energy big, can flow, visoelasticity is excellent, the characteristic of easy sealing without leakage is technical support, effectively guarantees to realize the function of tension compensator.With disclosed similar or close patent ratio, has simple in structure, reliable in function, volume is little, cost is low, the advantage of easy for installation, practical easy popularization.It is little to satisfy contact system tension compensating in the electrified railway high-speed overload transportation and the urban track traffic contact system space of casting anchor fully, the requirement of high precision tension compensating.

The unitized construction scheme drawing of description of drawings utility model embodiment

Among the figure: 1. connector 2. bars overlap 6. through-flow mouthfuls of 7. suspension ring, 8. accumulation of energy tubes of 3. boxlike scale graduation 4. rubber rings, 5. block nuts, 9. displacement cylinders, 10. piston type throw rods, 11. quick temperature coating 12. macromolecular elastomers 13. bulb 14. check valves 15. nuts 16. afterbody joints 17. air extractor vents 18. filling mouths

Intracardiac cover displacement cylinder (9) two-port rubber ring (4) sealing in the accumulation of energy tube (8) among the specific embodiment accompanying drawing embodiment, piston type throw rod (10) is sealed in the displacement cylinder (9); Rubber bulb (13) is contained in the lower right of accumulation of energy tube (8) and passes through check valve (14) filling temperature gas; Macromolecular elastomer (12) installs to accumulation of energy tube (8) by filling mouth (18) and passes through through-flow mouthful (6) again and enter in the displacement cylinder (9); Piston type throw rod (10) head links to each other with connector (1), has slip pole cover (2) on the bar; Nut (15) block nut (5) is spun on displacement cylinder (9) two, and left upper end is equipped with boxlike scale graduation (3), and the chi head is fixed on the connector (1); Air extractor vent (17) is left in afterbody joint (16) its lower left that links to each other with displacement cylinder (9) lower end; Accumulation of energy tube (8) upper right side is equipped with suspension ring (7) locatees when being used to compensator is installed, and accumulation of energy tube (8) all outside face scribbles quick temperature coating (11).

The utility model adopts the passive self-adaptive technology, with sleeved textural association is that main body forms the independent closed system, inner filling macromolecular elastomer functional material, the induction that is aided with quick adiabator cooperates, effectively the perception ambient temperature changes, add quick wet body of choose reasonable and macromolecular elastomer material filling parameter, quick wet body and high polymer elastic measure expansion when temperature build-up, under the internal system pressure unmodified situation, macromolecular elastomer (12) enters displacement cylinder (9) through through-flow mouthful (6), makes the absorption of piston type throw rod (10) retraction be connected the contact wire of the outside need compensation on the connector (1) or the length part that catenary changes because of temperature build-up; Externally during the air environment drop in temperature, temperature gas and macromolecular elastomer are met cold contraction, macromolecular elastomer (12) enters accumulation of energy tube (8) by through-flow mouthful (6) under internal system pressure unmodified situation, piston type throw rod (10) is stretched out, outside contact wire or the catenary that is connected on the connector (1) partly compensated because of the length variations that drop in temperature produces.

Claims

A kind of electrified railway power supply contact system thread tension force compensator, it comprises: connector, bar cover, boxlike scale graduation, rubber ring, block nut, through-flow mouth, suspension ring, accumulation of energy tube, displacement cylinder, piston type throw rod, quick temperature coating, macromolecular elastomer, bulb, check valve, nut, afterbody joint, air extractor vent, filling mouth etc.; It is characterized in that: intracardiac cover displacement cylinder (9) two-port seals with rubber ring (4) in the accumulation of energy tube (8), and piston type throw rod (10) is sealed in the displacement cylinder (9); Rubber bulb (13) is contained in the lower right of accumulation of energy tube (8) and passes through check valve (14) filling temperature gas; Macromolecular elastomer (12) installs to accumulation of energy tube (8) by filling mouth (18) and passes through through-flow mouthful (6) again and enter in the displacement cylinder (9); Piston type throw rod (10) head links to each other with connector (1), has slip pole cover (2) on the bar; Nut (15) block nut (5) is spun on displacement cylinder (9) two, and left end is equipped with boxlike scale graduation (3), and the chi head is fixed on the connector (1); Air extractor vent (17) is left in afterbody joint (16) its lower left that links to each other with displacement cylinder (9) lower end; Accumulation of energy tube (8) upper right side is equipped with suspension ring (7) locatees when being used to compensator is installed, and accumulation of energy tube (8) all outside face scribbles quick temperature coating (11).