JPS5832411Y2 - Switchboard and disconnection rails - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a movable trolley-type breaker rail in a switchboard.

As shown in FIG. 1, a typical configuration of a switchboard is such that a box 1 of the switchboard is divided into a breaker room A, a busbar room B, and a cable room C by partition walls 2 and 3.

The trolley-type circuit breaker 4 is arranged in the circuit breaker room A, and is connected to a busbar 6 and a cable 7 of the main circuit via a plug-in disconnection section 5 installed in the partition wall 2 .

The work of transporting the circuit breaker 4 to the operating connection position or transporting it to the disconnection position can be carried out accurately and quickly by restraining and guiding the running of the wheels 8 of the trolley-type circuit breaker 40 with the rails 10 laid on the floor plate 9. It will be held in

The details of the relationship between the wheels 8 and the rails 10 of the bogie type breaker 4 are shown in FIGS. 2A and 2B.

That is, FIG. 2A shows the axle 11 in the bogie type breaker 4.
An example is shown in which the outer surface of the wheel 8 attached to the vehicle is restrained and guided by the rail 10.

Further, FIG. 2B shows an example in which the inner surface of the wheel 8 is restrained and guided by the rail 10.

In the case of the structure as in the example described above, when the breaker 4 is carried in and out, the movement of the wheels in the lateral direction is sufficiently restricted and meandering can be prevented.

However, the regulation of the vertical movement of the wheels is insufficient.

In particular, when the breaker 4 is vertically vibrated during transportation and the switchboard is tilted, the breaker 4 also tilts, causing an external force in the thrust direction to act on the bearing that rotatably attaches the wheel 8 to the axle, damaging it. BL or the wheel 8 also separated from the floor plate 9, resulting in a so-called derailed state, and the connecting part between the breaker 4 and the disconnection part 5 was damaged due to the reaction force due to the impact when the breaker was turned on and the breaker was turned off. There was probably a lot of worry about giving away.

Therefore, in order to eliminate such concerns, it is necessary to reliably restrain and guide the vertical movement of the wheels.

In order to solve this problem, the rail of the present invention is characterized in that it has a structure in which the end portion of the axle is restrained and guided in the horizontal direction and the vertical direction.

The present invention will be explained below with reference to the embodiments shown in FIGS. 3 and 4.

The rail 10' of the first embodiment shown in FIG. left edge)
A first vertical part is provided near the end of the axle 11, on which the lower part of the outer surface of the wheel 8 attached comes into contact, and the end face of the axle 11 protruding from the wheel 8 comes into contact with the other side edge of the base C'. Second contact
A vertical portion a is provided upright, and a horizontal portion is integrally provided at the end of the second vertical portion a, with which the top of the shaft end of the axle 11 comes into contact.

Moreover, the rail 10 of the second embodiment shown in FIG.
A band-shaped base C fixed to the circuit breaker and extending in the moving direction of the breaker is formed wide so that the wheel 8 can be placed thereon freely, and the lower part of the inner surface of the wheel 8 is placed on the negative side edge of the base C. A first vertical portion d is provided upright in contact with the base C, and the other side edge of the base C is
Similar to the first embodiment, a second vertical portion a is provided upright with which the end surface of the axle 11 comes into contact, and a horizontal portion with which the top of the shaft end of the axle 11 comes into contact with the end of the second vertical portion a is provided. It is configured as an integral part.

Note that each of the above-mentioned embodiments is integrally formed as a section steel or by bending a steel plate or the like.

In the above two types of embodiments, the cross-sectional shape is important;
It does not matter what material or method it is made of.

Although the rail of the present invention has an extremely simple structure as described above, it can sufficiently restrain and guide the movement of the breaker in the vertical direction and in the thrust direction perpendicular to the direction of movement of the breaker, which is moved within the switchboard to turn on and off. In addition, since movement in the vertical and thrust directions is restricted at the end of the axle, even if an external force in the thrust direction is applied to the breaker during transportation of the switchboard, there is no risk of damaging the wheel bearings, and the stability is maintained. It has high performance and never causes derailment, contributes to accurate loading and unloading of the trolley-type circuit breaker, and completely eliminates concerns about damage to the connection section with the plug-in disconnection section.

Of course, there is no need to use a separate restraining guide means.

Furthermore, the rail of the present invention has the versatility of being easily usable not only in newly installed systems but also in existing power distribution boards.

[Brief explanation of the drawing]

Figure 1 is a simple sectional view showing the internal structure of a switchboard, Figures 2 A and B are explanatory diagrams showing conventional rails, and Figures 3 and 4 are explanatory diagrams showing different embodiments of the rail according to the present invention. It is. 1... Switchboard box, 4... Dolly type circuit breaker, 5... Plug-in type disconnector, 6...
...Bus bar, T...Cable, 8...Wheel, 10,10', 10//...Rail,
11...Axle.

Claims (1)

[Scope of utility model registration request] A breaker rail for a power distribution board that guides a trolley-type circuit breaker that is movably stored in the power distribution board extends from the wheels to the side edge of a base that extends in the direction of movement of the breaker and is fixed to the floorboard of the power distribution board. A rail for a circuit breaker for a power distribution board, characterized in that a vertical part is provided upright to which the end face of the axle comes into contact, and a horizontal part to which the top end of the axle axle comes into contact is integrally provided at the end of the vertical part.