JPH066676Y2 - Power generation equipment for aerial work vehicles - Google Patents
Power generation equipment for aerial work vehiclesInfo
- Publication number
- JPH066676Y2 JPH066676Y2 JP1986020678U JP2067886U JPH066676Y2 JP H066676 Y2 JPH066676 Y2 JP H066676Y2 JP 1986020678 U JP1986020678 U JP 1986020678U JP 2067886 U JP2067886 U JP 2067886U JP H066676 Y2 JPH066676 Y2 JP H066676Y2
- Authority
- JP
- Japan
- Prior art keywords
- generator
- aerial work
- hydraulic motor
- work vehicle
- power generation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Forklifts And Lifting Vehicles (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Description
【考案の詳細な説明】 （１）産業上の利用分野 本考案は高所作業車の作業台に備えた発電装置に関し、
特に安定した電圧を得るようにしたものである。[Detailed Description of the Invention] (1) Field of Industrial Use The present invention relates to a power generator installed on a workbench of an aerial work platform,
In particular, a stable voltage is obtained.
（２）従来の技術 高所作業車の作業台に搭載したバッテリーの充電装置と
して作業台に発電装置を備えることは、例えば実開昭５
７−１７４５００号公報に記載されているように従来公
知である。(2) Conventional Technology For example, the provision of a power generator on the workbench as a battery charging device mounted on the workbench of an aerial work vehicle is described in, for example,
It is conventionally known as described in JP-A 7-174500.
（３）考案が解決しようとする問題点 しかし、従来の発電装置は、発電機に接続した整流機と
レギュレータにより作業台に備えたバッテリーを常に満
充電するためのものであり、発電機の電力を直接照明装
置等の電源として使用したときには、原動機の回転数の
変化により発電装置の出力電圧が変化してしまうため、
照明装置が点灯しなかったり、過電圧により壊れたりす
るという問題があった。(3) Problems to be Solved by the Invention However, the conventional power generator is for always fully charging the battery provided on the workbench with the rectifier and the regulator connected to the generator, and the power of the generator is not used. When used as a power source for a direct lighting device, etc., the output voltage of the power generator changes due to changes in the number of revolutions of the prime mover.
There is a problem that the lighting device does not light up or is broken due to overvoltage.
（４）問題点を解決するための手段 本考案は、上記の問題点を解決するために、作業車の原
動機等により駆動される油圧ポンプからの吐出油により
回転する油圧モータと、この油圧モータの回転により作
動される交流発電機とを作業台に備えた高所作業車にお
いて、交流発電機の出力側に一定電圧の電気を出力する
為にチョークコイルとコンデンサとを並列に連結したＬ
Ｃフィルタを接続したものである。(4) Means for Solving Problems In order to solve the above problems, the present invention provides a hydraulic motor that is rotated by oil discharged from a hydraulic pump driven by a prime mover of a work vehicle, and the hydraulic motor. In an aerial work vehicle equipped with an alternator operated by the rotation of a work table, a choke coil and a capacitor are connected in parallel in order to output a constant voltage electricity to the output side of the alternator.
A C filter is connected.
（５）作用 上記の構成により、作業台で照明装置等を使用するとき
は、油圧ポンプから供給された圧油により油圧モータを
回転させて交流発電機を作動させ、交流発電機から出力
される電気を照明装置等の電源として使用するが、この
際、ブーム等の作動、非作動状態により原動機の回転数
が変化させられて交流発電機の出力電圧が変化してしま
っても、ＬＣフィルタを通すと発電装置は常に一定電圧
の電気を出力する。(5) Operation With the above configuration, when the lighting device or the like is used on the workbench, the hydraulic motor is rotated by the pressure oil supplied from the hydraulic pump to operate the AC generator, and the AC generator outputs. Electricity is used as a power source for lighting equipment, etc., but at this time, even if the output voltage of the alternator changes due to the change of the rotation speed of the prime mover due to the operation or non-operation of the boom etc., the LC filter should be used. When passed, the power generator always outputs electricity with a constant voltage.
（６）実施例 以下、図面により本考案の実施例について説明する。(6) Embodiment An embodiment of the present invention will be described below with reference to the drawings.
第２図に示すように、高所作業車はアウトリガ（２）に
より支持された車体（１）上にターンテーブル（３）が
設けられ、このターンテーブル（３）に伸縮ブーム
（４）の基端が枢支され、伸縮ブーム（４）は内臓され
た伸縮装置（図示せず）により伸縮するとともに、起伏
シリンダ（５）により起伏する。伸縮ブーム（４）の先
端には操作装置（７）、発電装置（Ａ）及び照明装置
（８）を備えた作業台（６）が平衡保持装置（図示せ
ず）により平衡保持されている。As shown in FIG. 2, an aerial work vehicle is provided with a turntable (3) on a vehicle body (1) supported by an outrigger (2), and the turntable (3) is provided with a base of a telescopic boom (4). The end is pivotally supported, and the telescopic boom (4) is telescopically moved by a telescopic device (not shown) incorporated therein, and is hoisted by the hoisting cylinder (5). A workbench (6) equipped with an operating device (7), a power generator (A) and a lighting device (8) is equilibrated at the tip of the telescopic boom (4) by an equilibrium holding device (not shown).
第１図に示すように、作業台（６）に備えた発電装置
（Ａ）は、油圧モータ（１２）と、この油圧モータ（１
２）の回転により作動し回転数（周波数）に比例して出
力電圧、出力周波数がリニアに変化する交流発電機（１
３）と、この交流発電機（１３）とコネクタ（１７）と
を接続する２本の配線の片側にＬＣフィルタ（１４）を
挿入し、交流発電機（１３）の回転数が上昇した分、Ｌ
Ｃフィルタ（１４）で出力電圧を減衰し、一定の出力電
圧をコネクタ（１７）に出力させる。ＬＣフィルタ（１
４）はチョークコイル（１５）とコンデンサ（１６）が
並列に接続されることにより構成されており、交流発電
機（１３）の出力周波数の増加に対応してチョークコイ
ル（１５）は出力電圧の減衰量を増加することにより、
基本的な減衰を行ない、その出力電圧の特性をコンデン
サ（１６）で補正することにより、第３図のグラフに示
す様に交流発電機（１３）の使用回転数の範囲（Ｂ）内
で交流発電機（１３）の回転数（周波数）に関係なく、
発電装置（Ａ）の出力電圧を一定に保つ。As shown in FIG. 1, a power generator (A) provided on a workbench (6) includes a hydraulic motor (12) and a hydraulic motor (1).
The AC generator (1) that operates by the rotation of 2) and whose output voltage and output frequency change linearly in proportion to the rotation speed (frequency)
3) and the LC filter (14) is inserted on one side of the two wires connecting the AC generator (13) and the connector (17), and the number of revolutions of the AC generator (13) increases, L
The output voltage is attenuated by the C filter (14) and a constant output voltage is output to the connector (17). LC filter (1
4) is configured by connecting the choke coil (15) and the capacitor (16) in parallel, and the choke coil (15) changes the output voltage in response to the increase in the output frequency of the AC generator (13). By increasing the attenuation,
By performing basic attenuation and correcting the characteristics of the output voltage with the capacitor (16), alternating current is used within the range (B) of rotation speeds of the AC generator (13) as shown in the graph of FIG. Regardless of the rotation speed (frequency) of the generator (13),
The output voltage of the power generator (A) is kept constant.
これらにより、油圧モータ（１２）が作業車のエンジン
等の原動機（９）により駆動される油圧ポンプ（１０）
と操作装置（７）の切換弁（１１）を介して連結され、
油圧ポンプ（１０）から吐出された圧油により発電装置
（Ａ）は作動する。With these, the hydraulic motor (12) is driven by a prime mover (9) such as an engine of a work vehicle, and a hydraulic pump (10).
And a switching valve (11) of the operating device (7),
The pressure oil discharged from the hydraulic pump (10) operates the power generator (A).
上記の構成により、作業台（６）で照明装置（８）等を
使用するときは、照明装置（８）のプラグ（１８）を発
電装置（Ａ）のコネクタ（１７）に差込んで照明装置
（８）を発電装置（Ａ）に接続し、原動機（９）を駆動
して油圧ポンプ（１０）を作動させ、切換弁（１１）を
ａ位置に切換えて油圧ポンプ（１０）から吐出された圧
油を油圧モータ（１２）へ供給して油圧モータ（１２）
を回転させ、交流発電機（１３）を駆動して照明装置
（８）に電気を送り、照明装置（８）を点灯させるが、
この際、伸縮ブーム（４）の作動等により原動機（９）
の回転数が増加すると、油圧ポンプ（１０）から吐出さ
れる圧油量が増え、これに伴い油圧モータ（１２）の回
転数も増加して交流発電機（１３）の回転数（周波数）
が増え、交流発電機（１３）の出力電圧が高くなるが、
ＬＣフィルタ（１４）が交流発電機（１３）の回転数、
すなわち周波数の増加に応じて出力電圧を減衰させるの
で、交流発電機（１３）は使用回転数の範囲（Ｂ）内で
は常に一定電圧の電気を出力し、照明装置（８）を常に
一定の明さに保つ。With the above configuration, when the lighting device (8) or the like is used on the workbench (6), the plug (18) of the lighting device (8) is inserted into the connector (17) of the power generation device (A) to perform the lighting device. (8) is connected to the power generator (A), the prime mover (9) is driven to operate the hydraulic pump (10), the switching valve (11) is switched to the a position, and the hydraulic pump (10) is discharged. Supply hydraulic oil to the hydraulic motor (12) to supply the hydraulic motor (12)
Rotating the AC generator (13) to send electricity to the lighting device (8) to turn on the lighting device (8).
At this time, the prime mover (9) is operated by the operation of the telescopic boom (4).
When the number of revolutions increases, the amount of pressure oil discharged from the hydraulic pump (10) increases, and the number of revolutions of the hydraulic motor (12) increases accordingly, and the number of revolutions (frequency) of the AC generator (13) increases.
, And the output voltage of the AC generator (13) increases,
The LC filter (14) is the number of revolutions of the AC generator (13),
That is, since the output voltage is attenuated as the frequency increases, the alternating-current generator (13) always outputs a constant voltage of electricity within the range (B) of the operating speed, and the lighting device (8) always has a constant light output. Keep it
なお、交流発電機（１３）の出力電圧が一定になる回転
数範囲（Ｂ）を、原動機（９）のアイドリング時からア
クセル最大時までの範囲で油圧ポンプ（１０）から吐出
される圧油により変化する油圧モータ（１２）の回転数
の範囲に合せることにより、伸縮ブーム（４）等の作
動、非作動に関係なく、交流発電機（１３）は常に一定
電圧の電気を出力することができる。In addition, the rotational speed range (B) where the output voltage of the AC generator (13) becomes constant is controlled by the pressure oil discharged from the hydraulic pump (10) in the range from idling of the prime mover (9) to maximum accelerator operation. By adjusting to the changing range of the rotational speed of the hydraulic motor (12), the AC generator (13) can always output electricity of a constant voltage regardless of whether the telescopic boom (4) or the like is operating. .
（７）考案の効果 以上のように、本考案によれば、簡単な構造により、交
流発電機の回転数に関係なく、常に一定電圧の電気を出
力することができるので、高所作業車等の夜間作業等の
作業効率が向上するという効果を有する。(7) Effects of the Invention As described above, according to the present invention, a simple structure can always output electricity of a constant voltage regardless of the number of revolutions of the alternator. This has the effect of improving work efficiency such as night work.
図面は本考案の実施例を示し、第１図は発電装置の回路
図、第２図は高所作業車の作業状態を示す側面図、第３
図は交流発電機の回転数（周波数）と発電装置の出力電
圧を示すグラフである。 ８……照明装置、９……原動機、１０……油圧ポンプ、
１２……油圧モータ、１３……交流発電機、１４……Ｌ
Ｃフィルタ、１５……チョークコイル、１６……コンデ
ンサ、Ａ……発電装置。The drawings show an embodiment of the present invention, FIG. 1 is a circuit diagram of a power generator, FIG. 2 is a side view showing a working state of an aerial work vehicle, and FIG.
The figure is a graph showing the rotation speed (frequency) of the AC generator and the output voltage of the power generator. 8 ... Lighting device, 9 ... Motor, 10 ... Hydraulic pump,
12 ... hydraulic motor, 13 ... AC generator, 14 ... L
C filter, 15 ... Choke coil, 16 ... Capacitor, A ... Generator.
Claims (1)
ンプからの吐出油により回転する油圧モータと、この油
圧モータの回転により作動される交流発電機とを作業台
に備えた高所作業車において、交流発電機の出力側に一
定電圧の電気を出力する為にチョークコイルとコンデン
サとを並列に連結したＬＣフィルタを接続したことを特
徴とする高所作業車の発電装置。1. An aerial work vehicle having a workbench equipped with a hydraulic motor that is rotated by oil discharged from a hydraulic pump that is driven by a prime mover of the work vehicle, and an AC generator that is operated by the rotation of the hydraulic motor. 2. A power generator for an aerial work vehicle, characterized in that an LC filter in which a choke coil and a capacitor are connected in parallel is connected to the output side of the AC generator to output electricity of a constant voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986020678U JPH066676Y2 (en) | 1986-02-14 | 1986-02-14 | Power generation equipment for aerial work vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986020678U JPH066676Y2 (en) | 1986-02-14 | 1986-02-14 | Power generation equipment for aerial work vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62132643U JPS62132643U (en) | 1987-08-21 |
| JPH066676Y2 true JPH066676Y2 (en) | 1994-02-16 |
Family
ID=30816411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986020678U Expired - Lifetime JPH066676Y2 (en) | 1986-02-14 | 1986-02-14 | Power generation equipment for aerial work vehicles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH066676Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7239391B2 (en) * | 2019-05-15 | 2023-03-14 | 株式会社丸山製作所 | Boom device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS619920Y2 (en) * | 1981-04-28 | 1986-03-29 | ||
| JPS58182427A (en) * | 1982-04-15 | 1983-10-25 | 松下電工株式会社 | 3-phase 4-wire switchboard power source circuit |
| JPS5981241U (en) * | 1982-11-24 | 1984-06-01 | 株式会社村田製作所 | Noise removal circuit for electronic equipment |
-
1986
- 1986-02-14 JP JP1986020678U patent/JPH066676Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62132643U (en) | 1987-08-21 |
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