JPS6130936B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a trolley power supply device.

A conventional trolley power supply device is shown in FIGS. 1 to 4. This power supply device is a tension type power supply device used for trolley devices such as electric hoists, cranes, and electric trolleys that are supplied with power while moving. It is designed to supply phase power.

The three power supply rails 1 are held via hangers 3 on mounting bars 2 which are horizontally suspended at a predetermined support interval L along the middle, and each power supply rail 1 is
Both ends of ... are terminal tightening insulators 4 as shown in Figure 1.
..., fixed to the mounting bases 8, 8' placed near both ends of the power supply rail 1... by terminal fixing insulators 5, coil springs 6..., tightening bolts 7..., or as shown in Fig. 4. Tensioned overhead wire 9, terminal clamping fitting 1
The power collector 12 of the current collector 11 is fixedly stretched to the mounting base materials 8, 8' through the wires 0 (FIG. 3).
is slidably pressed into contact with the power supply rail 1,
This current collector 11 is attached to a current collector mounting rod 12' extending from a part of the trolley device (not shown), and the power supply rail 1 is connected to the power supply rail 1 through the current collector 11.
... to supply power to the trolley device.

Each of the power supply rails 1... is a power collector 12.
It is composed of an insulating base 13 having a power collector guide groove 13a at the end opposite to the insulating base 13, and a power supply conductor 14 stretched over the bottom of the power collector guide groove 13a of the insulating base 13, On the other hand, in the current collector 11, a current collector holder 15 made of an insulating material that supports the power collector 12 guided by the power collector guide groove 13a is formed with a U-shaped cross section. A safety measure is taken to cover the contact area between the power collector 12 and the power supply rail 1 and a part of the hanger 3 in the vicinity so that it cannot be touched from the outside. In Fig. 1, 16 is a power supply line, and in Fig. 4, 17 is an end cover;
8 is a power supply box, and 16' is a power supply line.

In such a power supply device, remote control and push button operation are used as the operating method of the trolley device, but for this purpose, two control power supply rails are separately required, and these two control power supply rails (not shown) are used. are arranged side by side of the power supply rails 1 in the same manner as the power supply rails 1 described above.

However, in such a structure, as shown in FIG. It needs to be 50mm or more, so the power supply rail 1... is 3.
If two power supply rails for power and control are installed side by side, a space width of 200 mm or more is required, and one power supply rail for power
...and there is a problem that the installation space for the control power supply rail becomes large.

Furthermore, since the power supply rails 1 for power use and the power supply rails for control must be constructed separately, there is also the problem that construction is complicated and takes a long time.

Furthermore, each power supply rail 1... and control power supply rail are each provided with a predetermined support interval L (maximum 6
The power feed rail 1' shown in FIG. To explain this, in the middle part between the hangers 3, the power supply rail 1' tends to twist from the position shown in FIG. 5A to the state shown in FIG. Another drawback is that contact with the conductor 14' is not maintained uniformly, resulting in poor conduction and derailment of the current collector 12.

Therefore, an object of the present invention is to reduce the installation space for power feed rails for both power and control, prevent poor contact and derailment of both power and control collectors, and speed up construction. Another object of the present invention is to provide a trolley power supply device that can be easily operated.

An embodiment of this invention is shown in FIGS. 6 and 7. That is, this trolley power supply device is a power supply device for three-phase power supply, and has a strip-shaped insulating base 19.
Three power current collector guide grooves 19a... and two control current collector guide grooves 19b... are alternately arranged in parallel on the surface of the main body. Among these, each power collector guide groove 19
A power supply conductor 20 is stretched on the bottom surface of a, and three power supply rails 21 consisting of a power collector guide groove 19a and a power supply conductor 20 are formed.
... are integrally formed on the strip-shaped insulating base 19, and a control power supply conductor 22 is stretched on the bottom surface of each control current collector guide groove 19b. Two power supply rails 23 for control consisting of power supply conductors 22 for control are integrally formed on the strip-shaped insulating base 19. Further, a pair of tension wires 24, 24 made of wire or the like are inserted through both side edges of the strip-shaped insulating base 19 in the longitudinal direction of the strip-shaped insulating base 19. The strip-shaped insulating base 19 is held by hangers 26' with the back surface facing the mounting bars 25 horizontally suspended at predetermined support intervals, and both ends of the tension wires 24, 24 are are fixed to mounting base materials (not shown) disposed near both ends of the strip-shaped insulating base 19, and the entire strip-shaped insulating base 19 is stretched between the mounting base materials at both ends.

On the other hand, the current collector 26 guided by the power supply rails 21 and the control power supply rails 23 has a U-shaped cross section that can cover the entire width of the surface of the strip-shaped insulating base 19, as shown in FIG. Three power collectors 28 are provided on the inner surface of the insulating current collector holder 27 facing each of the power collector guide grooves 19a of the strip-shaped insulating base 19, and three power collectors 28 are provided on the inner surface of the insulating current collector holder 27. Two control current collectors 29 are formed and integrated so as to face the guide grooves 19b.
In FIG. 7, 30 and 31 are lead wires.

Note that since the current flowing through the control power supply conductor 22 is a minute current, it can be set to a narrower width than that of the power supply conductor 20 for power.

With this configuration, the following effects can be obtained.

(1) Three power supply rails 21 and two control power supply rails 23 are arranged alternately in parallel on one strip-shaped insulating base 19, and the current collector 26 is also one current collector holder 27. Three power collectors 28...
and two control collectors 29... are alternately arranged side by side and integrated, the overall width dimension is shortened and the installation space for both power supply rails 21..., 23... can be reduced.

(2) Three power supply rails 21... and two control power supply rails 23... are integrated into the strip-shaped insulated base 19, and are stretched in a well-balanced manner by a pair of tensioned overhead wires 24, 24. Therefore, power supply rail 2
1... and the control power supply rail 23... are not tilted or twisted, and the power collector 28...
Also, poor contact and derailment of the control collectors 29 can be prevented.

(3) By integrating both feeder rails 21..., 23..., the number of hangers 26' can be reduced to 1/5 of the conventional number, and the number of terminal clamps can be reduced to 2 instead of the conventional 10. As a result, construction can be carried out quickly and easily, making it possible to significantly reduce construction costs and material costs.

As described above, the trolley power supply device of the present invention has a strip-shaped insulating material that is held via hangers to mounting bars arranged at predetermined support intervals, and whose both side edges are stretched longitudinally with a pair of tension wires. a base, a plurality of power collector guide grooves arranged in parallel in the longitudinal direction on the surface of the strip-shaped insulating base, and a power collector guide groove arranged in the power collector guide groove. a power supply conductor having a plurality of power supply rails integrally formed on the strip-shaped insulated base; and a control current collector formed on the surface of the strip-shaped insulated base in parallel with the power collector guide groove. a control power supply conductor which is arranged in the control current collector guide groove and integrally forms a control power supply rail on the band-shaped insulating base; an insulated current collector holder with a U-shaped cross section that covers the entire width of the surface of the stand; and a plurality of power sources that are arranged in parallel at a position facing the power feed rail of the insulated current collector holder and that are in contact with the power feed conductor. Since it is equipped with a current collector and a control current collector disposed at a position facing the control power supply rail of the insulated current collector holder and in contact with the control power supply conductor, both power supply and control power supply are possible. The rail installation space can be reduced, poor contact and derailment between power and control collectors can be prevented, and construction can be done quickly and easily.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a conventional example, Fig. 2 is a front view showing the installation state of the power supply rail, Fig. 3 is a front view showing the state of connection between the power supply rail and the current collector, and Fig. 4 is another example. Figures 5A and 5B are explanatory diagrams showing problems with the feeder rail in the conventional example, and Figure 6 is a perspective view showing a conventional example.
The figure is a perspective view of main parts showing one embodiment of the present invention.
The figure is a sectional view of the main part. 19... Band-shaped insulating base, 19a... Power collector guide groove, 19b... Control collector guide groove,
20... power supply conductor for power, 21... power supply rail, 22... power supply conductor for control, 23... power supply rail for control, 24... tension overhead wire, 25... mounting frame, 26
... Current collector, 26'... Hanger, 27... Current collector holder, 28... Current collector for power, 29... Current collector for control.

Claims (1)

[Claims] 1. A band-shaped insulating base that is held via hangers to mounting bars arranged at predetermined support intervals and whose both edges are stretched longitudinally with a pair of tension wires; A plurality of power current collector guide grooves arranged in parallel in the longitudinal direction and a power current collector guide groove disposed within the power current collector guide groove integrally form a plurality of power current collector guide grooves on the strip-shaped insulating base. a power supply conductor forming a power supply rail, a control current collector guide groove formed on the surface of the strip-shaped insulated base parallel to the power current collector guide groove, and a control current collector guide groove formed in the control current collector guide groove. a control power supply conductor integrally forming a control power supply rail on the band-shaped insulating base with a control current collector guide groove disposed in the control current-collecting guide groove; an insulated current collector holder, a plurality of power collectors arranged in parallel at positions facing the power feed rail of the insulated current collector holder and in contact with the power feed conductor, and the control of the insulated current collector holder. A trolley power supply device comprising: a control current collector disposed at a position facing a power supply rail and in contact with the control power supply conductor.