JPH03256508A - Riseup/falldown conveyer for breaker - Google Patents

Abstract

PURPOSE:To simplify handling operation so as to make safe installation possible by providing vertically a pair of guide rails and a lift device in each guide rail and connecting a rotary device, set up in a lift frame unit, to a driven wheel to drive it. CONSTITUTION:A driven wheel 3 such as a worm wheel is left as previously mounted rotatably to each pivot 2 of a breaker main unit 1. Next, the breaker main unit 1 is vertically mounted onto a moving carriage 5. Then in order to place the breaker main unit 1 to fall down on the moving carriage 5, a driving gear 11 of a rotary device 13 is driven to rotate the driven wheel 3 by a drive wheel meshed therewith, so that the breaker main unit 1, integrally formed with this driven wheel 3, is turned by 90 deg. about the pivot 2 to fall down. The breaker main unit 1 can be horizontally laid on the moving carriage 5 by driving each rewinding machine 8 to lower a lift frame unit 9 along each guide rail 6.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a circuit breaker up-and-down transport device used for transporting and installing a circuit breaker in an underground substation of a high-rise building. .

(Prior art) Recently, as cities have become overcrowded, the demand for electricity has increased, and circuit breakers such as gas-tight circuit breakers, which can be operated efficiently in small spaces, have been adopted. is desired. Circuit breakers such as these gas-tight circuit breakers are installed in underground substations of high-rise buildings.

In particular, underground substations equipped with circuit breakers, such as gas-sealed circuit breakers, are being adopted in order to effectively utilize the basements of high-rise buildings. As a result, in order to reduce the size of circuit breakers such as gas-tight circuit breakers due to space restrictions, the mainstream is of the laminated type, in which the circuit breaker body is arranged vertically.

On the other hand, in the construction of high-rise buildings, the machine hatch (vertical shaft) into which 89 equipment is brought in is made as small as possible in order to reduce the amount of incidental equipment. b. Lower the ceiling of underground equipment passageways as much as possible. There is also an economical desire to simplify the structure of the cage by reducing the upper hanging allowance required for installing C1 equipment and the ceiling load during lifting, so circuit breakers such as gas-tight circuit breakers are machine hatched. Circuit breakers are carried vertically in the passageways of shafts (vertical shafts), and in low ceilings, circuit breakers are carried horizontally, and multiple hooks are attached to distribute the hanging load of the equipment.

On the other hand, considering the transportation process from shipment of the circuit breaker to installation in an underground substation, the circuit breaker is tested in a vertical position under the same conditions as on-site installation at the time of shipment from the factory, and then Due to road height restrictions (tunnels) during transportation, the circuit breaker is placed horizontally and transported on a trailer or truck. When arriving at the site, this circuit breaker A is installed as shown in Figure 7.
is a machine hatch (vertical shaft) in a high-rise building A that stands vertically.
The circuit breaker A is carried in by operating a crane C from b, and furthermore, when transported through an underground passage, the circuit breaker A is laid down horizontally and transported by a trolley d. Thereafter, as shown in FIG. 8, the circuit breaker A is installed vertically on the underground base me. and,
This circuit breaker A includes a current transformer f1 grounding device g, a disconnector h1
A grounding device i with resistance, a cable head j, a control panel k, a rectifier m, a grounding device n, a bus 01 disconnector P, etc. are connected.

(Problem to be Solved by the Invention) However, the above-mentioned transportation means from shipment of the circuit breaker to installation at the underground substation requires that the circuit breaker, which weighs approximately 3 to 5 tons, be laid down from factory shipment to on-site installation. As the circuit breaker is repeatedly lowered and raised, it takes time and effort to handle it, and it is also dangerous when the heavy circuit breaker is repeatedly lowered and raised, so extreme care must be taken to avoid damage. There are problems with reliability and safety.

The present invention has been made in view of the above-mentioned circumstances, and consists of placing a heavy circuit breaker on a movable cart so that it can be lowered or raised, and transporting the circuit breaker from the 6th floor of the circuit breaker to the installation of an underground substation. An object of the present invention is to provide an up-and-down conveyance device for a circuit breaker, which facilitates handling operations and allows safe installation without expending time and effort.

[Structure of the invention]

(Means for Solving the Problems and Their Effects) The present invention provides a circuit breaker in which a pair of support shafts are provided below the center of gravity of the circuit breaker body so that a driven wheel is mounted thereon. A pair of guide rails are provided upright, each guide rail is provided with an elevating device, and a rotating device installed on the elevating frame of the elevating device is connected to and driven by the driven wheel. By the joint operation of the lifting device and the rotating device, the heavy circuit breaker can be lowered or raised, and it can be easily transported from shipping of the circuit breaker to installation in the underground substation. This allows for safe installation without expending time and effort.

(Example) Hereinafter, the present invention will be described with reference to an illustrated embodiment.

In FIGS. 1 to 6, reference numeral 1 denotes a circuit breaker main body having a weight of about 3 to 5 tons and incorporating an operating mechanism 1a in a circuit breaker such as a gas circuit breaker, for example. Each bracket below the center of gravity G of the main body 1 has
A pair of support shafts 2 are provided such that a driven wheel 3 such as a worm wheel is removably mounted thereon, and the circuit breaker main body 1 rotates around the support shafts 2. It is designed to be able to rise and fall.

On the other hand, the flat movable trolley 5 equipped with wheels 4 is configured so that it can be divided into a plurality of (three parts in FIG. 3) trolleys, so that the movable trolley 5 can be shortened when being carried into the shaft. There is. Further, each pair of guide rails 6 is erected on the movable cart 5, and each guide roller 7 is attached to the upper part of each guide rail 6. Furthermore, each hoisting machine 8 is provided in the middle of each of the guide rails 6, and a lifting frame 9 is connected to the hanging lobe 8a of each hoisting machine 8 via each of the guide rollers 7. ing.

Therefore, the hoisting machine 8 and the elevating frame 9 are connected to the elevating device 10.
It consists of

On the other hand, on the upper part of the elevating frame 9 by the elevating device 10,
For example, a reversibly rotating drive device 11 such as a drive motor
A drive wheel 12, such as a worm gear, is mounted on the output shaft of the drive device 11 so as to mesh with a driven wheel 3, such as the worm wheel.

Therefore, the drive wheel 12 such as a worm gear of this drive device 11 and the driven wheel 3 such as the above-mentioned worm wheel meshing therewith constitute a rotating device 13.

Hereinafter, the effects of the present invention will be explained.

Therefore, as shown in FIGS. 4 to 6, a driven wheel 3 such as a worm wheel is mounted on each support shaft 2 of the circuit breaker body 1 in advance.

Next, the circuit breaker main body 1 is vertically placed on the movable cart 5.

Next, as shown in FIG. 6, in order to lay down the circuit breaker main body 1 on the movable trolley 5, the driving device 11 of the rotating device 13 is driven, so that the drive wheels of the driving device 11 are driven. 12 rotates the driven wheel 3 that meshes with this, the circuit breaker main body 1, which is integral with the driven wheel 3, rotates by 90 degrees around the support shaft 2 and falls down, and the lifting device 10
By driving each winder 8, the elevating frame 9 is lowered along each kite rail 6, whereby the circuit breaker main body 1 can be laid down horizontally on the movable trolley 5. .

On the other hand, in order to erect the circuit breaker main body 1 on the movable trolley 5, the above-described operations may be performed in the reverse order.

In this manner, the present invention allows the circuit breaker main body 1 to be easily raised and lowered on the movable cart 5 by the joint operation of the lifting device 10 and the rotating device 13. This makes it easy to transport the equipment from shipment to underground substation installation, simplifying handling operations, and allowing safe installation without expending time and effort.

〔Effect of the invention〕

As described above, according to the present invention, in a circuit breaker in which a pair of support shafts are provided below the center of gravity of the circuit breaker body so as to support driven wheels, each pair of guide shafts is provided with a guide roller on a movable cart. The rails are set up and a lifting device is installed on each guide rail, and the rotating device installed on the lifting frame of the lifting device is connected to the driven wheel and driven, so that the lowering and raising operations of the circuit breaker can be controlled. Not only is it easy to do, but it also has excellent effects such as being able to easily transport the circuit breaker from shipping to installing it in an underground substation, allowing it to be installed safely without spending time and effort.

11... Drive device, 12... Drive wheel, 13... Rotating device.

Claims (1)

[Claims] In a circuit breaker in which a pair of support shafts are provided below the center of gravity of the circuit breaker body so as to support driven wheels, each pair of guide rails each having a guide roller installed vertically on a movable trolley, and each of these guide rails are provided. A lifting and lowering conveyance device for a circuit breaker, characterized in that it is equipped with an elevating device provided on the elevating device, and a rotating device installed on the elevating frame of the elevating device and connected to and driven by the driven wheel. .