The preformed fixture of a kind of electrified railway additive wire
Technical field
The present invention relates to railway art, particularly relate to the preformed fixture of a kind of electrification railway contact net additive wire.
Background technology
Electrified railway is to using the modernized railway of electric locomotive as train traction power.Contact system is being undertaken the electric energy obtaining from traction substation is directly being flowed to the vital task that electric locomotive uses, and is counted as the artery of electrified railway.Therefore, the quality of contact system and mode of operation will directly affect the transport capacity of electrified railway.
Additive wire is as the important component part of electrification railway contact net; comprise supply line, line feeder, return wire, AT-feeder, protective wire, lightning conductor or aerial earth wire etc.; all need to support or hang with wire clamp; and that fixture plays a part in contact system is fixing, support additive wire; therefore the quality of fixture directly affects additive wire, or even the safety of contact system.
Applicant retrieves the utility model patent that one piece of application number is 201120115519.6, this patent discloses a kind of additional lead support wire clamp, comprise wire clip body and briquetting clamping plate, by wire clip body and line ball clamping plate, additive wire is gripped, and directly wire clip body is fixedly supported on steel column by bolt.Although this additional lead support wire clamp has supporting role, because itself and wire are rigid, contact, easily produce stress and concentrate, damage wires, has improved maintenance cost, and single bolt is directly fixing, clamps unstable.
Summary of the invention
For solving the above-mentioned problems in the prior art, the invention provides a kind of wire that makes stressed evenly, and can improve wire service life, reduce the preformed fixture of electrified railway additive wire of maintenance cost.
For achieving the above object; the preformed fixture of electrified railway additive wire of the present invention; comprise fixture, liner, helical metal preformed armor rods and clevis bolt assembly; wherein liner is for clamping and guardwire; preformed armor rods is wrapped on liner outside face and to both sides and extends and be wrapped on additive wire; described fixture is clamped on the preformed armor rods outside face at described liner place, and lower clamp bottom is provided with the base that is fixedly connected with use simultaneously.
Further, described liner is that the thick dolioform half arc liner in middle thin two ends forms by two profiles, and its inner side is provided with the axis hole matching with additive wire external diameter.
Further, described liner consists of elastic body and rigid backbone.
Further, described helical metal preformed armor rods is formed by aluminum-alloy wire or aluminum cald steel wire or galvanized steel wire spiral forming.
Further, after described liner clamping wires, all preformed armor rods centre portions are wrapped on liner outside face, guarantee preformed armor rods and liner laminating closely, and extend and be wrapped on additive wire to both sides.
Further, described fixture is support type fixture, and this support fixture consists of upper and lower two clamping plate.
Further, on described upper lower plate inside face, be provided with the thick arcuate furrow in thin two ends, centre that along continuous straight runs extends.
Further, described upper lower plate is symmetrical four through holes outside arcuate furrow all, and four through holes of upper lower plate respectively with one heart.
Further, described lower plate is provided with two grooves, clevis bolt is installed in groove and also passes in the concentric through hole of upper lower plate, and fixing upper lower plate is clamped in described helical metal preformed armor rods, liner and additive wire in the axis hole of upper lower plate arcuate furrow docking formation.
Further, described lower plate is provided with base, and base is provided with four symmetrical through holes, and fixture is fixedly connected with outside plane by the through hole on base.
Additive wire of the present invention is provided with preformed armor rods with preformed fixture, makes to a certain extent the stressed of wire evenly not have stress to concentrate, and has effectively improved the rigidity of additive wire; Built-in elastic body liner, has greatly improved the effect of wire clamp to the abrasionproof of wire and vibration damping; Additive wire of the present invention is simple in structure with preformed fixture, convenient for installation and maintenance, meets high-speed electric railway completely and installs and uses requirement.
Accompanying drawing explanation
Fig. 1 is the structural representation of preformed fixture for a kind of electrified railway additive wire in embodiment;
Fig. 2 is the section-drawing of A-A section in Fig. 1;
Fig. 3 is the structural representation of liner;
Fig. 4 is the section-drawing of D-D section in Fig. 3;
Fig. 5 is the structural representation of train wheel bridge;
Fig. 6 is the section-drawing of B-B section in Fig. 5;
Fig. 7 is the structural representation of lower plate;
Fig. 8 is the section-drawing of C-C section in Fig. 7;
Fig. 9 is the front view of Fig. 8.
The specific embodiment
In order to solve the problem that in prior art, fixture exists, the invention provides the preformed fixture of a kind of electrified railway additive wire, below in conjunction with accompanying drawing and embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, does not limit the present invention.
Embodiment:
As depicted in figs. 1 and 2, the preformed fixture of electrified railway additive wire of the present invention, comprises liner 1, helical metal preformed
armor rods 2, fixture 3 and two cover
clevis bolt assemblies 4, and wherein fixture 3 consists of upper and lower two
clamping plates 31,32.Two block-shaped identical liner 1
clamping additive wires 5, helical metal preformed
armor rods 2 is wrapped on liner 1 outside face and to both sides and extends and be wrapped on wire 5.Fixture 3 is fixedly helical metal preformed
armor rods 2, liner 1 and
additive wire 5 in outside.
As shown in Figure 3 and Figure 4, liner 1 is that both sides are thin dolioform in the middle of thick, and the hole that the inner side of liner 1 has the external diameter with
wire 5 to match, consists of
elastic body 11 and rigid backbone 12, and rigid backbone 12 is imbedded
elastic body 11 inside.
As shown in Figure 5 and Figure 6, the inner side of
train wheel bridge 31 is provided with the
groove 312 that connects clamping plate left and right directions, thick dolioform in thin two in the middle of this groove is, groove bilateral symmetry four through holes 311 that distribute.
As shown in Fig. 7-Fig. 9, the inner side of
lower plate 32 is provided with the
groove 321 that connects clamping plate left and right directions, thick dolioform in thin two in the middle of this groove is,
lower plate groove 321 is measure-alike with train
wheel bridge groove 312, lower plate groove bilateral symmetry four through
holes 322 that distribute.
As shown in Fig. 7 and Fig. 9, described
lower plate 32 also has two
firm bankings 323, has four through
holes 324 on
firm banking 323, by fastener, can make this firm banking be fixedly connected with outside plane.
As shown in Figure 9, symmetrical two
grooves 325 in the outside of
lower plate 32, this groove can play spacing effect to
U-bolt assembly 4.
While using this fixture, first on
wire 5, fasten liner 1, helical metal preformed
armor rods 2 is wrapped in to the outside face of liner 1 and extends and be wound on
wire 5 to both sides,
train wheel bridge 31 and
lower plate 32 are clamped in to the outside of the preformed
armor rods 2 at liner 1 place, preformed
armor rods 2 is contained in the through hole of
lower plate 31,32 docking formation, installing
U-bolt assembly 4, fixing upper and lower two clamping plate, finally four through holes of the
firm banking 323 of
fixture bottom 324 are aimed to the fixed orifice of outside plane, use fastener fixed pedestal wire clamp.
Although be example object, the preferred embodiments of the present invention are disclosed, it is also possible those skilled in the art will recognize various improvement, increase and replacement, therefore, scope of the present invention should be not limited to above-described embodiment.