CN203283050U

CN203283050U - Secondary protective cable clamp used for anchoring of electrified railway terminal

Info

Publication number: CN203283050U
Application number: CN201320050826XU
Authority: CN
Inventors: 林轶; 苏蔚潇
Original assignee: BEIJING GENERAL FITTING Co Ltd
Current assignee: LIAONING HAIAO SCIENCE & TECHNOLOGY CO., LTD.
Priority date: 2013-01-30
Filing date: 2013-01-30
Publication date: 2013-11-13
Anticipated expiration: 2023-01-30

Abstract

The utility model discloses a secondary protective cable clamp used for anchoring of an electrified railway terminal. The cable clamp comprises an internal cable clamp body, an external cable clamp body and two connecting rings, the internal cable clamp body and the external cable clamp body are respectively made of a plurality of preformed armor rods, the preformed armor rods are bonded and fixed, a preformed armor rod set is integrally bended to be made into a symmetrical U-shaped structure, and the preformed armor rod set on the bottom of the U-shaped structure is wound into a spiral-tube shape at a free section. A U-shaped groove is formed in each connecting ring, and an installing holes penetrating through two side walls of the U-shaped groove perpendicularly are formed in the two side walls of the U-shaped groove along the upper edge of the U-shaped groove. When the secondary protective cable clamp used for anchoring of the electrified railway terminal is used, firstly, the internal cable clamp is wounded to a cable to be fixed, the cable is held tightly, then the external cable clamp is wounded to the external layer of the internal cable clamp, grip strength to the cable is further improved, the internal wire clamp and the external wire clamp are connected with fixing points to the two sides of the cable through the connecting rings, and installation is convenient. Meanwhile, installing strength is ensured, using stability is improved, and the secondary protective cable clamp used for anchoring of the electrified railway terminal can help the cable to dissipate heat together.

Description

A kind of electrified railway terminal anchoring second protection wire clamp

Technical field

The utility model belongs to the electrification railway contact net field, relates to a kind of electrified railway terminal anchoring second protection wire clamp.

Background technology

Electrified railway catenary or contact wire when bearing contact system tension force, also need transmission current; The working tension of catenary or contact wire is higher, and vibration in service is strong, is subjected to fatigue stress large, more needs its stability good, and tensile property is good.Existing terminal anchoring gold utensil easily produces hard spot, fracture by fatigue occurs, the safe operation that jeopardizes contact system.

Summary of the invention

For solving the problems of the technologies described above, the utility model provides a kind of safe and reliable, simple and reasonable, easy for installation, electrified railway catenary or contact wire terminal anchoring second protection wire clamp that overall performance is strong.

Electrified railway terminal of the present utility model anchoring second protection wire clamp, comprise inside and outside double-layer wire clamp and two coupling links, and inside and outside double-layer wire clamp hand of spiral is opposite, and is enclosed within respectively on a coupling link.

Further, described inside and outside double-layer wire clamp comprises respectively some preformed armor rodses, and between each preformed armor rods, bonding is fixing, and preformed armor rods group Integral bending is made symmetrical U-shaped structure, U-shaped structural base preformed armor rods group is wound in helix at free segment, and helix partly is parallel to each other.

Further, the internal diameter of described internal layer wire clamp helix free segment is slightly less than the catenary that will connect or the external diameter of contact wire.

Further, described outer wire clamp helix free segment is wrapped on the external diameter of internal layer wire clamp, and the internal diameter of outer wire clamp is slightly less than the external diameter that is connected to the internal layer wire clamp after catenary or contact wire.

Further, described inside and outside double-layer wire clamp preformed armor rods group is Cu-Mg alloy wire.

Further, the inside face of described inside and outside double-layer wire clamp all is stained with one deck sand.

Further, described coupling link is provided with a U-lag, is provided with a mounting hole that vertically runs through two side near its upper edge on this U-lag two side.

Further, after described inside and outside double-layer wire clamp was enclosed within respectively on coupling link, inside and outside double-layer wire clamp free segment was wrapped on cable, the cable of holding with a firm grip, and the U-shaped bottom to the cable left and right sides separately, is connected with the attachment point of cable both sides by coupling link respectively.

Compared with prior art the beneficial effects of the utility model are:

Electrified railway terminal anchoring of the present utility model is adopted inside and outside double-deck preformed armor rods structure with the second protection wire clamp; first the internal layer wire clamp is wound on cable to be fixed; outer wire clamp is wound on the internal layer wire clamp, inside and outside double-layer wire clamp is connected with attachment point by coupling link, and is easy for installation again.The use of double-deck preformed armor rods group, both guaranteed installation strength simultaneously, improved stability in use, can help again catenary and contact wire jointly to dispel the heat.

Description of drawings

Fig. 1 is use view of the present utility model;

Fig. 2 is the schematic diagram of internal layer cable clamp structure shown in sequence number 1 in Fig. 1;

Fig. 3 is outer cable clamp structure schematic diagram shown in sequence number 2 in Fig. 1;

Fig. 4 is the front view of coupling link shown in sequence number 3 in Fig. 1;

Fig. 5 is the cutaway view of A-A section in Fig. 4.

The specific embodiment

In order to solve problems of the prior art, the utility model provides a kind of electrified railway terminal anchoring second protection wire clamp, below in conjunction with accompanying drawing and embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the utility model, does not limit the utility model.

Embodiment:

As shown in Figure 1; electrified railway terminal of the present utility model anchoring comprises internal layer wire clamp 1, outer wire clamp 2 and two coupling links 3 with the second protection wire clamp; internal layer wire clamp 1 is wound on cable 4; the cable of holding with a firm grip; outer wire clamp 2 is wrapped in the skin of internal layer wire clamp 1; inside and outside double-layer wire clamp is set in the holding tank of coupling link setting, by coupling link 3, with attachment point, is connected.

As shown in Figure 2, the internal layer wire clamp is made by some preformed armor rodses, the internal layer wire clamp comprises a U-shaped structure 11 and two free segment 12 two parts, the preformed armor rods of U-shaped structure 11 is wound in the twisted wire form, free segment 12 parts are wound in the helix that rotation direction is dextrorotation, the internal diameter of free segment 12 parts is slightly less than the external diameter of cable, and the internal layer of free segment 12 is stained with one deck conduction sand.

As shown in Figure 3, outer wire clamp is made by some preformed armor rodses, outer wire clamp comprises a U-shaped structure 21 and two free segment 22 two parts, the preformed armor rods of U-shaped structure 21 is wound in the twisted wire form, it is left-handed helix that free segment 22 parts are wound in rotation direction, the internal diameter of free segment 22 parts is slightly less than the external diameter that is connected to the internal layer wire clamp 2 after cable, and the internal layer of free segment 22 is stained with one deck conduction sand.

As shown in Fig. 4-5, a U-lag 31 is arranged on coupling link 3, be provided with a mounting hole 32 that vertically runs through two side near its upper edge on U-lag 31 two sides.

Electrified railway terminal of the present utility model anchoring second protection wire clamp, the U-shaped structure of inside and outside double-layer wire clamp are by U-lag 31 bottoms on coupling link 3, and the free segment 12 of inside and outside double-layer wire clamp and 22 extends to U-lag 31 opening directions back to coupling link 3.In use, internal layer wire clamp 1 is wrapped on cable 4, outer wire clamp 2 is wrapped in the skin of internal layer wire clamp 1 again, and two wire clamps produce grip force to cable simultaneously., at the sticking layer of copper alloy conductive sand in the radially inner side surface of inside and outside double-layer wire clamp helix free segment, can increase the friction coefficient between the ectonexine wire clamp, thereby improve the grip force to cable 4.The U-shaped structural sections of inside and outside double-layer wire clamp is connected on the U-shaped structure of coupling link, and the U-shaped bottom to the cable left and right sides separately, is connected with the attachment point of cable both sides by coupling link respectively.

Although be the example purpose, preferred embodiment of the present utility model is disclosed, it is also possible those skilled in the art will recognize various improvement, increase and replacement, therefore, scope of the present utility model should be not limited to above-described embodiment.

Claims

1. electrified railway terminal anchoring second protection wire clamp, is characterized in that, described wire clamp comprises inside and outside double-layer wire clamp and two coupling links, and inside and outside double-layer wire clamp hand of spiral is opposite, and is enclosed within respectively on a coupling link.

2. electrified railway terminal as claimed in claim 1 anchoring second protection wire clamp; it is characterized in that; described inside and outside double-layer wire clamp comprises respectively some preformed armor rodses; between each preformed armor rods, bonding is fixing; preformed armor rods group Integral bending is made symmetrical U-shaped structure; U-shaped structural base preformed armor rods group is wound in helix at free segment, and helix partly is parallel to each other.

3. electrified railway terminal as claimed in claim 1 or 2 anchoring second protection wire clamp, is characterized in that, the internal diameter of described internal layer wire clamp helix free segment is slightly less than the catenary that will connect or the external diameter of contact wire.

4. electrified railway terminal as claimed in claim 1 or 2 anchoring second protection wire clamp; it is characterized in that; described outer wire clamp helix free segment is wrapped on the external diameter of internal layer wire clamp, and the internal diameter of outer wire clamp is slightly less than the external diameter that is connected to the internal layer wire clamp after catenary or contact wire.

5. electrified railway terminal as claimed in claim 1 anchoring second protection wire clamp, is characterized in that, described inside and outside double-layer wire clamp preformed armor rods group is Cu-Mg alloy wire.

6. electrified railway terminal as claimed in claim 1 anchoring second protection wire clamp, is characterized in that, the inside face of described inside and outside double-layer wire clamp all is stained with one deck sand.

7. electrified railway terminal as claimed in claim 1 anchoring second protection wire clamp, is characterized in that, described coupling link is provided with a U-lag, is provided with a mounting hole that vertically runs through two side near its upper edge on this U-lag two side.

8. electrified railway terminal as claimed in claim 1 anchoring second protection wire clamp; it is characterized in that; after described inside and outside double-layer wire clamp is enclosed within respectively on coupling link; inside and outside double-layer wire clamp free segment is wrapped on cable; the cable of holding with a firm grip; the U-shaped bottom to the cable left and right sides separately, is connected with the attachment point of cable both sides by coupling link respectively.