JPH0419037Y2 - - Google Patents
Info
- Publication number
- JPH0419037Y2 JPH0419037Y2 JP1986030338U JP3033886U JPH0419037Y2 JP H0419037 Y2 JPH0419037 Y2 JP H0419037Y2 JP 1986030338 U JP1986030338 U JP 1986030338U JP 3033886 U JP3033886 U JP 3033886U JP H0419037 Y2 JPH0419037 Y2 JP H0419037Y2
- Authority
- JP
- Japan
- Prior art keywords
- boom
- distance
- light
- crane
- light wave
- 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
Links
Landscapes
- Jib Cranes (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、クレーンの作業範囲規制、ブームの
衝突防止、フツク自動装置決め等のクレーンの運
転制御に用いられる作業半径測定装置に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a working radius measuring device used for crane operation control such as regulating the working range of a crane, preventing boom collisions, and determining automatic hook device determination.
一般に、クレーンの作業範囲規制やブームの衝
突防止等を自動制御で行う場合、作業半径の測定
が必要となるが、起伏式クレーンでは重錘式の角
度検出器を使用し、検出した角度から作業半径を
演算して求める方式が採用されている。
Generally, when automatically controlling the crane's working range or preventing boom collisions, it is necessary to measure the working radius, but for luffing cranes, a weight-type angle detector is used, and work is performed from the detected angle. A method is used that calculates the radius.
しかしながら、このような従来の方式は、角度
検出器の重錘の振子振動や遅れ追従が発生し、正
確な角度検出ができず、水平クレーンの作業半径
測定には、そのための装置を別途必要とし兼用で
きない欠点がある。また、建設現場使用中のクレ
ーン現場で検出器を取付けるのには加工時間がか
かつてしまい、簡単に取付けることができない。
However, with this conventional method, the pendulum vibration of the angle detector's weight and delayed tracking occur, making it impossible to accurately detect the angle, and a separate device is required to measure the working radius of a horizontal crane. There is a drawback that it cannot be used interchangeably. Furthermore, installing the detector at a crane site that is in use at a construction site requires processing time and cannot be easily installed.
本考案は上記問題点を解決するためのもので、
ブーム起伏角に追従した性格な作業半径の測定が
でき、設定プログラムを変更するだけで起伏クレ
ーンと水平クレーンの両方に兼用でき、クレーン
への取付けも現場で簡単にできるクレーンの作業
半径測定装置を提供することを目的とする。 This invention is intended to solve the above problems.
A crane working radius measurement device that can measure the working radius according to the boom heave angle, can be used for both hoisting cranes and horizontal cranes by simply changing the setting program, and can be easily installed on the crane on site. The purpose is to provide.
そのために本考案のクレーンの作業半径測定装
置は、旋回ベースに取り付けた光反射体、該光反
射体の上方ブームの所定位置に常に鉛直下方へ光
を発射するように懸垂状態に取り付け、光反射体
からの反射光を受光して旋回ベース迄の距離を測
定する光波距離計、及びブームフートピンと光波
距離計間の距離、ブーム長さ、旋回ベース面から
のブームフートピンの高さ、ブームフートピンと
旋回中心間距離が予め入力されている演算手段を
備え、光波距離計で測定した距離を演算手段に入
力して演算することにより、クレーンの作業半径
を求めることを特徴とする。
To this end, the crane working radius measuring device of the present invention includes a light reflector attached to a revolving base, a boom above the light reflector, which is suspended in a predetermined position so as to always emit light vertically downward; A light wave distance meter that measures the distance to the swing base by receiving reflected light from the body, the distance between the boom foot pin and the light wave range meter, the boom length, the height of the boom foot pin from the swing base surface, and the boom foot. The present invention is characterized in that it includes a calculation means into which the distance between the pin and the center of rotation is input in advance, and calculates the working radius of the crane by inputting the distance measured by the light wave distance meter into the calculation means and calculating it.
本考案のクレーンの作業半径測定装置は、ブー
ムの所定位置に光波距離計を設け、光波距離計か
ら鉛直下方へ光を発射し、旋回ベースに設けた反
射体からの反射光を受光して光波距離計と旋回ベ
ース間の距離を測定し、この測定した距離を、ブ
ームフートピンから光波距離計およびブーム先端
までの距離等が予め入力されている演算回路に入
力することにより、ブームの角度やクレーンの作
業半径を求める。
The crane working radius measuring device of the present invention is equipped with a light wave range meter at a predetermined position on the boom, emits light vertically downward from the light wave range meter, receives the reflected light from a reflector installed on the swing base, and generates light waves. By measuring the distance between the rangefinder and the swing base and inputting this measured distance into an arithmetic circuit that has previously input the distance from the boom foot pin to the light wave rangefinder and the tip of the boom, the angle of the boom can be determined. Find the working radius of the crane.
以下、図面に基づいて本考案の実施例を説明す
る。第１図は本考案の作業半径測定装置を説明す
るためのクレーンの側面図で、１はブーム、２は
ブームフートピン、３は旋回ベース、４は旋回中
心軸、５はフツク、６はブーム先端部、７は光波
距離計、８は反射用銀色テープである。
Embodiments of the present invention will be described below based on the drawings. Fig. 1 is a side view of a crane for explaining the working radius measuring device of the present invention, in which 1 is a boom, 2 is a boom foot pin, 3 is a swing base, 4 is a swing center axis, 5 is a hook, and 6 is a boom. At the tip, 7 is a light wave distance meter, and 8 is a reflective silver tape.
図において、ブーム１根本部のブーム軸芯面
に、光波距離計７を常に鉛直下方へ光を発射し得
るように懸垂状態に取付け、旋回ベース３の光波
距離計７の直下にあたる部分に反射用銀色テープ
を張り付ける。光波距離計７は反射用銀色テープ
８からの反射光を受光し、発射した光に対する受
光した光の位相変化から光波距離計７と旋回ベー
ス３との間の距離ｃを測定する。そこでブームフ
ートピン２から光波距離計７の取付点までの距離
をａ、ブームフートピン２から光波距離計７の直
下地点までの水平距離をｂ、反射テープ８の面か
らブームフートピン２までの高さをｈ、ブーム１
の傾斜角度をθ、ブーム１の長さをＬ、ブームフ
ートピン２から旋回中心軸４までの距離をｒ、作
業半径をＲとすると、次の関係式がなりたつ。 In the figure, a light wave range finder 7 is attached to the boom axis plane at the base of the boom 1 in a suspended state so that it can always emit light vertically downward, and a reflection light is attached to the part of the swing base 3 directly below the light wave range finder 7. Attach silver tape. The light wave distance meter 7 receives the reflected light from the reflective silver tape 8, and measures the distance c between the light wave distance meter 7 and the rotating base 3 from the phase change of the received light with respect to the emitted light. Therefore, the distance from the boom foot pin 2 to the attachment point of the light wave range meter 7 is a, the horizontal distance from the boom foot pin 2 to the point directly below the light wave range meter 7 is b, and the distance from the surface of the reflective tape 8 to the boom foot pin 2 is height h, boom 1
When the inclination angle is θ, the length of the boom 1 is L, the distance from the boom foot pin 2 to the rotation center axis 4 is r, and the working radius is R, the following relational expression holds true.
cosθ＝ｂ／ａ＝√a2−（ｃ−ｈ）2／ａ ……(1)
cosθ＝ｒ＋Ｒ／Ｌ
→Ｒ＝Lcosθ−ｒ ……(2)
(1)(2)式より、
Ｒ＝Ｌ×√a2−（ｃ−ｈ）2／ａ−ｒ ……(3)
となる。従つてａ，ｈ，Ｌ，ｒを設定値として演
算回路に予め入力しておけば、距離ｃを計測する
ことで三角関数を使わずに、単純な演算式で作業
半径を求めることができる。 cosθ=b/a=√a 2 −(c−h) 2 /a …(1) cosθ=r+R/L →R=Lcosθ−r …(2) From equations (1) and (2), R= L×√a 2 −(c−h) 2 /a−r …(3). Therefore, by inputting a, h, L, and r into the arithmetic circuit in advance as set values, the working radius can be determined by a simple arithmetic expression without using trigonometric functions by measuring the distance c.
こうして得られた演算回路の作業半径測定信号
は、作業範囲規制、ブーム衝突防止、フツク自動
位置決め等の自動制御装置に送られ、利用され
る。 The working radius measurement signal of the arithmetic circuit thus obtained is sent to an automatic control device for regulating working range, boom collision prevention, automatic hook positioning, etc., and is utilized.
なお、水平クレーンの場合には、光波距離計を
旋回中心部に水平に計測できるように取付け、横
行トロリーに反射銀色テープを設ければ、計測デ
ータをそのまま作業半径として使うことができ
る。また、光波距離計は反射銀色テープからの反
射光を受光するようにしたが、旋回ベース面に光
電素子等の受光素子を設けて、光波距離計からの
光をどの受光素子が受けたかにより作業半径を求
めるようにすることも可能である。 In the case of a horizontal crane, if a light wave distance meter is installed at the center of the turn so that it can be measured horizontally, and a reflective silver tape is installed on the traversing trolley, the measurement data can be used as is as the working radius. In addition, the light wave rangefinder was designed to receive the reflected light from the reflective silver tape, but a light receiving element such as a photoelectric element was installed on the rotating base surface, and the operation was performed depending on which light receiving element received the light from the light wave rangefinder. It is also possible to calculate the radius.
以上の説明から明らかなように、本考案によれ
ば、ブーム起伏角に追従した正確な作業半径の測
定ができ、設定プログラクを変更するだけで起伏
クレーンと水平クレーンの両方に兼用でき、測定
装置のクレーンへの取付けも現地で簡単にできる
ので、広く利用でき、作業能率が向上すると共
に、ブーム衝突も防止でき安全性も向上する。ま
た、演算式が角関数のない単純な加減乗除のみで
できるので、演算時間が大幅に短縮することが可
能である。
As is clear from the above explanation, according to the present invention, it is possible to accurately measure the working radius following the boom heave angle, and it can be used for both hoisting cranes and horizontal cranes by simply changing the setting program, and the measuring device Since it can be easily installed on a crane on-site, it can be used widely, improving work efficiency and preventing boom collisions, improving safety. In addition, since the calculation formula can be made using only simple addition, subtraction, multiplication, and division without angular functions, calculation time can be significantly reduced.
第１図は本考案の作業半径想定装置を説明する
ためのクレーンの側面図である。
１……ブーム、２……ブームフートピン、３…
…旋回ベース、４……旋回中心軸、５……フツ
ク、６……ブーム先端部、７……光波距離計、８
……反射用銀色テープ。
FIG. 1 is a side view of a crane for explaining the working radius estimation device of the present invention. 1...Boom, 2...Boom foot pin, 3...
...Swivel base, 4...Swivel center axis, 5...Hook, 6...Boom tip, 7...Light wave distance meter, 8
...Reflective silver tape.
Claims (1)
の上方ブームの所定位置に常に鉛直下方へ光を発
射するように懸垂状態に取り付け、光反射体から
の反射光を受光して旋回ベース迄の距離を測定す
る光波距離計、及びブームフートピンと光波距離
計間の距離、ブーム長さ、旋回ベース面からのブ
ームフートピンの高さ、ブームフートピンと旋回
中心間距離が予め入力されている演算手段を備
え、光波距離計で測定した距離を演算手段に入力
して演算することにより、クレーンの作業半径を
求めることを特徴とするクレーンの作業半径測定
装置。 A light reflector is attached to the rotating base, and the light reflector is attached to a predetermined position on the boom above the light reflector in a suspended state so as to always emit light vertically downward. A light wave distance meter for measuring distance, and a calculation means in which the distance between the boom foot pin and the light wave distance meter, the boom length, the height of the boom foot pin from the swing base surface, and the distance between the boom foot pin and the swing center are input in advance. A working radius measuring device for a crane, characterized in that the working radius of the crane is determined by inputting and calculating the distance measured by the light wave distance meter into a calculation means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986030338U JPH0419037Y2 (en) | 1986-03-03 | 1986-03-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986030338U JPH0419037Y2 (en) | 1986-03-03 | 1986-03-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62144289U JPS62144289U (en) | 1987-09-11 |
| JPH0419037Y2 true JPH0419037Y2 (en) | 1992-04-28 |
Family
ID=30835053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986030338U Expired JPH0419037Y2 (en) | 1986-03-03 | 1986-03-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0419037Y2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5440818A (en) * | 1977-09-05 | 1979-03-31 | Ngk Frit Kk | Composition for frit and mixture thereof to be used in coating stainless steel |
| JPS5858465B2 (en) * | 1980-07-16 | 1983-12-26 | 三菱瓦斯化学株式会社 | Bleaching of textile materials with hydrogen peroxide |
-
1986
- 1986-03-03 JP JP1986030338U patent/JPH0419037Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62144289U (en) | 1987-09-11 |
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