JPH0721519Y2 - Aerial work vehicle power supply - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to an aerial work vehicle configured to supply electricity to a bucket attached to the tip of a boom having an insulating portion without impairing the insulating property of the boom. Of the power supply device.

[Background of the Invention] An aerial work vehicle, in which an operator rides on a bucket equipped at the tip of a boom to perform aerial work, especially for work on overhead lines in a live line condition, mounts on the bucket to perform overhead work. In order to ensure the safety of workers who perform the work, the bucket and the tip boom to which the bucket is attached are made of an insulating material such as FRP (glass fiber reinforced plastic) to have a complete insulating structure.

Therefore, it is impossible to secure the power supply for electric tools used in the bucket and the power supply for various electric devices equipped in the bucket from the ground power supply because of the insulation property. At present, the aerial work vehicle secures a necessary power source by mounting a battery in the bucket.

[Problems to be solved by the device]

However, as described above, the battery of the conventional aerial work vehicle using the battery as a power source is charged by connecting the charging cable connected to the lower power source to the battery after the normal work and storing the bucket. In general, charging is performed in preparation for work at high altitudes, but such a charging method requires connecting the charging cable connected to the lower power source to the battery, and the pre-work for charging is extremely difficult. It is complicated and therefore often has problems such as neglecting charging.

[Means for Solving the Purpose and Problem of Invention]

The present invention has been made in view of the above problems,
The purpose is to provide a power supply device for an aerial work vehicle that supplies electricity to a bucket attached to the tip of a boom having an insulating portion without impairing the insulating property of the boom. A power supply device for an aerial work vehicle in which a bucket is attached to the tip of a boom having an insulating part, wherein a motor built in the base end of the boom having the insulating part and one end of which is connected to an output shaft of the motor. And a generator built in the tip of the boom having the insulating portion and having the other end of the rotation transmitting means connected thereto.

[Action]

Since the present invention adopts the above configuration, the bucket attached to the tip of the boom having the insulating portion effectively uses the lower power source as a power source for charging the battery mounted in the bucket without impairing the insulating property of the boom. In addition, it is possible to charge the battery in parallel while performing work at a high place, that is, while driving various tools using the electric power of the battery. During the process, the sudden stop of the driving of the electric tool or the like due to the various power costs of the battery is eliminated, and stable and efficient power supply and efficient work at high places are possible.

〔Example〕

Hereinafter, an embodiment of a power supply device for an aerial work vehicle according to the present invention will be described in detail with reference to FIGS. 1 and 2.

In the figure, 1 is an aerial work vehicle equipped with a power supply device according to the present invention, 2 is a turntable, 3 is a boom that can be raised and lowered, and a boom is extendable and retractable. It is an equipped bucket.

By the way, the tip boom 3a of the boom 3 in which the bucket 4 is swingably / rotatably mounted is made of an insulating material such as FRP (glass fiber reinforced plastic) and is made of the bucket 4 and the vehicle body 1a.
The tip boom is constructed with an electrically complete insulation structure between the
A power source, for example, an electric motor M (a DC motor in this embodiment) driven by a battery 5 mounted on the vehicle body 1a is built in the base end of 3a, and the electric motor M and the tip of the tip boom 3a are connected to each other. The generator G built in the inside is connected via a rotary bar 8 which is a rotation transmitting means having an insulating property and having universal joints 6 and 7 arranged at both ends.

Further, reference numeral 9 in the figure is a charging device connected to the generator G mounted inside the bucket 4, and the battery 10 also mounted inside the bucket 4 is charged through the charging device 9. Is configured.

Hereinafter, the operation of the power supply device for an aerial work vehicle according to the present invention will be described based on the above embodiment.

That is, the power supply device for an aerial work vehicle according to the present invention uses the battery 5 mounted on the vehicle body 1a side inside the base end of the tip boom 3a made of an insulating material in which the bucket 4 is swingably / rotatably mounted. A generator G, which has a built-in electric motor M to be driven and is connected to the rotation of the electric motor M via universal joints 6 and 7 by an insulating rotary bar 8, is installed inside the tip of the same tip boom 3a. The battery 10 that is transmitted and rotates the generator G, converts the electric power generated by the generator G into direct current through the charging device 9 mounted inside the bucket 4, and mounts it inside the same bucket 4. Since the bucket 4 and the vehicle body 1a are electrically insulated from each other by the tip boom 3a made of an insulating material, they are affected by the insulating structure of the tip boom 3a. Not a bucket It is possible to efficiently charge the battery 10 mounted on the battery 5 by using the battery 5 as an indirect power source, and the structure for that is very simple, so that it is easy to manufacture. Since it is possible to charge the power of the battery 10 one by one in parallel while driving the tools, there is no sudden stoppage of the driving of the power tools, etc. due to the decrease in the power of the battery during the work as in the past. It provides stable and efficient power supply, so you can work in high places with peace of mind.

[Effect of device]

As described in detail above, the present invention is a power supply device for an aerial work vehicle in which a bucket is attached to the tip of a boom having an insulating portion, and a motor built in the base end of the boom having the insulating portion, It is composed of an insulating rotation transmitting means having one end connected to the output shaft of the motor, and a generator built in the tip of the boom having the insulating portion and having the other end connected to the rotation transmitting means. Therefore, it becomes possible to effectively use the lower power supply as a power supply for charging the battery mounted on the bucket in the bucket attached to the tip of the boom having the insulating portion without impairing the insulation of the boom.
Moreover, the battery can be charged at the same time while performing work at a high place, that is, while driving various tools using the electric power of the battery. Sudden stoppage of driving of an electric tool or the like due to power consumption is eliminated, and various excellent effects such as stable and efficient supply of electric power and efficient work at high places are possible.

[Brief description of drawings]

FIG. 1 is a perspective view of an aerial work vehicle equipped with a power supply device for an aerial work vehicle according to the present invention, and FIG. 2 is an explanatory view showing a main part of the power supply device of the aerial work vehicle. 1 ... Aerial work vehicle, 1a ... Car body, 2 ... Turntable, 3 ...
Boom, 3a ... Tip boom, 4 ... Bucket, 5 ... Battery, 6, 7 ... Universal joint, 8 ... Rotating bar (rotation transmitting means), 9 ... Charging device, 10 ... Battery.

Claims (1)

[Scope of utility model registration request] 1. A power supply device for an aerial work vehicle in which a bucket is attached to the tip of a boom having an insulating portion, wherein a motor built in the base end of the boom having the insulating portion and an output shaft of the motor are provided. Insulated rotation transmitting means connected at one end, and built in the tip of the boom having the insulating portion,
A power generator for an aerial work vehicle, comprising: a generator to which the other end of the rotation transmitting means is connected.