JPH04127803A - Cable head for supporting train pantographs - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a cable head that also serves as a support for a pantograph device for a train.

[Prior Art] As shown in FIG. 3, a pantograph 1 for a train is supported by, for example, four support insulators 30 installed on a vehicle roof 2. One of the support insulators 2 A lead wire 31 connects the top of the cable head 32 installed on the roof of the end room of the vehicle, and the cable 33 connected to the cable head 32 is connected to a motor or the like under the floor to supply power.

[Problems to be Solved by the Invention] By the way, the cable head 32 is installed independently from the pantograph device 1, and has a configuration that requires many parts such as the lead wire 31 and the cable head 32. In addition, when trying to make trains lighter, faster, and thereby reduce wind noise, having such a large number of parts is the biggest drawback.

This invention was made in view of the above points, and by using both the punk graph support insulator and the cable head, it is possible to reduce the weight and speed of vehicles, and also to reduce FFI noise. The purpose of the present invention is to provide a pantograph device capable of

[Means and effects for solving the problems] In this invention, at least one of the pantograph supporting insulators is used also as a cable head, thereby improving the weight reduction and noise reduction of a vehicle, and also improving the pantograph attachment of the cable head. The present invention relates to a cable head for supporting a punk graph for electric trains, which has connection terminals in the part to enable multi-purpose power supply.

[Example] Hereinafter, the present invention will be described in detail based on the drawings. 1st
The figure is a side view showing the structure of a cable head for supporting a train pantograph according to one embodiment, and FIG. 2 is a sectional view showing the internal structure. That is, the cable head 3 for supporting the train pantograph is fixed on the roof 2 of the train car with bolts 4,
The pantograph 1 is supported by three supporting insulators (not shown) having the same height. The electric train pantograph support cable head 3 has a tapered cable insertion port 5a at the lower end.A rubber molded insulating block 8 is inserted into the cable insertion port of the insulator tube 5 so as to support the wire core 6a of the cable 6 inserted into the insulator tube 5. 5a, a semiconductive rubber layer 8a is formed on the rising part of the insulating block 8, and one end of the semiconductive rubber layer 8a is connected to the outer shielding layer 6b of the cable core 6a.
electrically connected to. Then, the base metal fitting 1 is attached to the lower metal fitting 9 of the insulator pipe 5 with a bolt lO.
1 and the insulating block press fitting 12 inserted onto the semi-conductive rubber layer 8a, the insulating block 8 is always pressed against the tapered wall of the cable insertion port 5a of the insulating tube 5. is pressed against. In addition,
14 is a backing interposed between the base metal fitting 11 and the cable sheath 6C.

A terminal plate 18 is attached to the upper metal fitting 17 of the insulator tube 5, and has a pull-out plate 19 extending in the radial direction, and a terminal rod insertion hole 16 is provided approximately in the center of the insulator tube 5. A terminal bar 15 is compressively connected to the cable conductor 6d at the tip of the wire core 6a of the cable 6 inserted into the insulator tube 5, and is inserted into the terminal plate insertion hole 16 and fixed. In addition, terminal board 1
8 is attached to the upper metal fitting 17 by an embedded bolt (not shown).
The drawer plate 19 is attached so that the direction of the drawer plate 19 can be changed. Reference numeral 20 denotes a connection fitting attached to the terminal plate 18 with bolts 21. 22 is a wedge metal fitting interposed between the tapered part 23 of the terminal rod insertion hole 16 and the terminal rod 15;
This wedge fitting 22 electrically connects the terminal plate 18 and the terminal bar 15.

Reference numeral 24 denotes a fastening metal fitting that is screwed into a threaded portion 25 formed at the upper part of the insertion hole 16 to tighten the wedge metal fitting 22.

26 is an insulating mixture filled between the cable core 6a and the porcelain tube 5.

The train pantograph support cable head 3 of this embodiment configured in this way supports the pantograph 1 installed on the roof 2 of the vehicle with three other supporting insulators of the same height, and connects the pantograph 1 to the overhead line. Power is supplied by contact with the connecting fitting 20, the terminal bar 15. Power is supplied to the motor etc. under the vehicle floor via the cable 6. Further, the drawer plate 19 fixed to the upper metal fitting 17 together with the terminal plate 18 is attached so that the direction can be changed freely, and it is also possible to branch out and supply power to other electrical devices from here. . Therefore, depending on the position of the connected object, draw out the object! 2ii19 can be easily and orderly connected.

[Effects of the Invention] As explained above, by using the cable head that also serves as a support insulator of the present invention, there is no need to use the cable head that was previously installed separately, so parts can be omitted, and space on the vehicle roof can be saved. You can save money. In addition, it is possible to reduce the weight of the vehicle and reduce the wind noise that occurs as trains run at higher speeds6.Furthermore, it is possible to freely change the direction of the drawer plate, and it is possible to Multi-purpose power supply to devices can also be done easily and orderly.

[Brief explanation of the drawing]

Fig. 1 is a side view showing a cable head for supporting an electric train pantograph according to an embodiment of the present invention, Fig. 2 is a sectional view of Fig. 1, and Fig. 3 is a conventional arrangement of a pantograph supporting insulator and a cable head. FIG. 1...Pantograph 2...Roof 3...To train pantograph support cable 5...Snow crushing
6... Cable 7... Upper metal fitting 18...
Terminal plate 9... Pull-out plate 20... Connection metal fitting Patent applicant Hitachi Cable Co., Ltd.

Claims (1)

[Claims] A terminal plate and a pull-out plate are provided at the tip of the insulator tube, and a pantograph is fixed thereon via a connecting fitting, so that it can also be used as a cable head for connecting at least one pantograph support insulator. Cable head for supporting pantographs for trains.