JPH09136787A - Travel limiting device for crawler crane - Google Patents
Travel limiting device for crawler craneInfo
- Publication number
- JPH09136787A JPH09136787A JP29556595A JP29556595A JPH09136787A JP H09136787 A JPH09136787 A JP H09136787A JP 29556595 A JP29556595 A JP 29556595A JP 29556595 A JP29556595 A JP 29556595A JP H09136787 A JPH09136787 A JP H09136787A
- Authority
- JP
- Japan
- Prior art keywords
- load
- travel
- signal
- propriety
- traveling
- 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.)
- Pending
Links
Landscapes
- Control And Safety Of Cranes (AREA)
- Jib Cranes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はクレ−ラクレ−ンに
おいて一定の荷重を超えたときその走行を制限する走行
制限装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a travel restricting device for restricting the travel of a crawl lane when a certain load is exceeded.
【０００２】[0002]
【従来の技術】クレ−ラクレ−ン等の移動式クレ−ン
は、荷を吊って走行することは原則として禁止されてい
る。しかし現状では高負荷での吊り走行も行なわれてい
る。即ち機械は吊り荷の重さ等に全く関係なく、運転者
の操作通りに作動する構造となっている。このため、機
械の強度的な安全性低下や走行装置等への影響が大き
く、機械寿命の短縮や破損の問題がある。2. Description of the Related Art In principle, mobile cranes such as cradle cranes are prohibited from traveling by hanging a load. However, under the present circumstances, suspension running under high load is also performed. That is, the machine has a structure that operates as the driver operates, regardless of the weight of the suspended load. For this reason, the mechanical strength of the machine is reduced and the traveling device is greatly affected, and there is a problem of shortening the machine life and damage.
【０００３】[0003]
【発明が解決しようとする課題】このような問題を解決
し、高負荷での走行を防止し、その結果機械の安全性と
寿命の確保が可能な走行制限装置を提供することを課題
とする。SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to provide a travel limiting device capable of preventing traveling under a high load and, as a result, ensuring the safety and life of the machine. .
【０００４】[0004]
【課題を解決するための手段】荷重検出器９と角度検出
器１０を有し、荷重検出器と角度検出器の信号を取り込
んでクレ−ン負荷を演算する負荷演算装置７と、負荷演
算装置７からの負荷信号により走行の可否を判定し走行
可否信号を発する走行可否管理装置８と操作レバ−４か
らの走行信号を作動・停止させる作動可否バルブ１１を
備え、前記走行可否信号によって作動可否バルブ１１を
操作して一定の荷重を超えてのクレ−ンの走行を制限す
るようにした。A load calculation device 7 having a load detector 9 and an angle detector 10 for taking in signals from the load detector and the angle detector to calculate a crane load, and a load calculation device. A travel permission / prohibition management device 8 for determining travel propriety based on the load signal from 7 and issuing a travel propriety signal, and an actuation propriety valve 11 for actuating / stopping the travel signal from the operation lever 4 are provided. The valve 11 was operated to limit the traveling of the crane beyond a certain load.
【０００５】[0005]
【発明の実施の形態】図面を参照して説明する。図１
(ａ)は従来の走行制御システム、(ｂ)はその作動回路ブ
ロック図である。又図２は本発明のシステム配置図、図
３は本発明の作動回路システムブロック図である。さ
て、図１はクロ−ラクレ−ンの従来型走行制御システム
を示し、１は下部走行体、２は上部旋回体、３は吊り
荷、４は運転室内に設けた操作レバ−である。この操作
レバ−４を操作すると、クレ−ンは吊り荷３を吊ったま
までもバルブ５を介し操作レバ−の操作通りに走行装置
６を駆動することができる。DETAILED DESCRIPTION OF THE INVENTION A description will be given with reference to the drawings. FIG.
(a) is a conventional traveling control system, (b) is a block diagram of its operating circuit. 2 is a system layout diagram of the present invention, and FIG. 3 is an operation circuit system block diagram of the present invention. Now, FIG. 1 shows a conventional traveling control system of a crawl crane, 1 is a lower traveling body, 2 is an upper revolving structure, 3 is a suspended load, and 4 is an operation lever provided in a driver's cab. When the operating lever-4 is operated, the crane can drive the traveling device 6 through the valve 5 according to the operation of the operating lever while the hanging load 3 is being hung.
【０００６】本発明は、このような従来のクレ−ンの走
行装置に吊り荷３の大きさを演算する装置と負荷の大き
さにより走行の可否を判定する管理装置及びその信号に
より走行の操作信号を作動・停止させる作動可否バルブ
を加えたものである。According to the present invention, a traveling device for calculating the size of the suspended load 3 and a management device for judging the propriety of traveling according to the size of the load in the conventional traveling device of the crane and the operation of the traveling by the signal thereof. This is the addition of an enable / disable valve that activates and deactivates the signal.
【０００７】図２及び図３で詳しく説明する。７は荷重
検出器９と角度検出器１０の信号を受ける負荷演算装
置、８は走行可否管理装置である。管理装置８は予め定
められた負荷以上になると、作動可否バルブ１１を制御
し、操作レバ−４からの操作信号を切り、走行の作動を
不可能とさせる機能を有している。作動可否バルブ１１
は走行可否管理装置８からの信号を受入れて作動の可否
を決定し、バルブ５を操作する。This will be described in detail with reference to FIGS. 2 and 3. Reference numeral 7 is a load calculation device that receives signals from the load detector 9 and the angle detector 10, and 8 is a travel availability management device. When the load exceeds a predetermined load, the management device 8 has a function of controlling the operation enable / disable valve 11 and cutting off the operation signal from the operation lever 4 to disable the operation of traveling. Operable valve 11
Receives a signal from the travel permission / prohibition management device 8 to determine whether or not to operate, and operates the valve 5.
【０００８】（作用）荷重検出器９と角度検出器１０の
信号を負荷演算装置７に取り込み、走行可否管理装置８
に対し負荷信号を出力する。上記負荷信号に基いて走行
可否管理装置８で走行の可否判定を行い、作動可否バル
ブ１１に走行可否信号を発する。走行可否管理装置８は
予め定められた負荷以上になると作動可否バルブ１１を
制御し、操作レバ−４からの操作信号があっても、これ
を切り、走行を不可能とさせるようになっている。なお
本発明は移動式クレ−ラクレ−ンに限らず、他の走行機
構を有する移動式クレ−ン（たとえばトラッククレ−ン
等）にも勿論適用できるものである。(Operation) The signals of the load detector 9 and the angle detector 10 are fetched into the load computing device 7, and the traveling propriety management device 8 is provided.
To the load signal. Based on the load signal, the traveling propriety management device 8 determines whether or not traveling is possible, and issues a traveling propriety signal to the operation propriety valve 11. The traveling propriety management device 8 controls the operation propriety valve 11 when the load exceeds a predetermined load, and even if there is an operation signal from the operation lever-4, it is turned off to make traveling impossible. . The present invention is not limited to the mobile cradle crane, but can be naturally applied to mobile cranes having other traveling mechanisms (for example, truck cranes).
【０００９】[0009]
【発明の効果】本発明により、一定の限度を超える高負
荷の場合、走行可否管理装置８で信号を発し、作動可否
バルブ１１を介して走行を自動的に防止できるようにし
たので、機械の安全と寿命の確保が可能となった。According to the present invention, in the case of a high load exceeding a certain limit, the traveling propriety management device 8 issues a signal so that traveling can be automatically prevented through the operation propriety valve 11. It is possible to secure safety and longevity.
【図１】一般的な移動式クレ−ラクレ−ンの走行制御シ
ステムとその作動回路のブロック図。FIG. 1 is a block diagram of a travel control system of a general mobile cradle crane and its operating circuit.
【図２】本発明の走行制御システム配置全様図。FIG. 2 is an overall view of the layout of the traveling control system of the present invention.
【図３】本発明の作動回路システムブロック図。FIG. 3 is a block diagram of an operating circuit system of the present invention.
１ 下部走行体 ２ 上部旋回体 ３ 吊り荷 ４ 操作レバ− ５ バルブ ６ 走行装置 ７ 負荷演算装置 ８ 走行可否管理装
置 ９ 荷重検出器 10 角度検出器 11 作動可否バルブ1 Lower traveling structure 2 Upper revolving structure 3 Suspended load 4 Operation lever 5 Valve 6 Traveling device 7 Load calculation device 8 Travel availability management device 9 Load detector 10 Angle detector 11 Actuation availability valve
Claims (1)
し、荷重検出器と角度検出器の信号を取り込んでクレ−
ン負荷を演算する負荷演算装置(７)と、負荷演算装置
(７)からの負荷信号により走行の可否を判定し走行可否
信号を発する走行可否管理装置(８)と操作レバ−(４)か
らの走行信号を作動・停止させる作動可否バルブ(11)を
備え、前記走行可否信号によって作動可否バルブ(11)を
操作して一定の荷重を超えてのクレ−ンの走行を制限す
るようにしたことを特徴とするクロ−ラクレ−ンの走行
制限装置。1. A load detector (9) and an angle detector (10) are provided, and the signals of the load detector and the angle detector are taken in to make a clear.
Load calculation device (7) for calculating load, and load calculation device
A traveling propriety management device (8) that determines whether traveling is possible based on the load signal from (7) and issues a traveling propriety signal, and an operation propriety valve (11) that activates / stops the traveling signal from the operation lever (4) A travel restricting device for a crawl lane characterized in that the travel enable / disable valve (11) is operated according to the travel enable / disable signal to restrict travel of the crane beyond a certain load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29556595A JPH09136787A (en) | 1995-11-14 | 1995-11-14 | Travel limiting device for crawler crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29556595A JPH09136787A (en) | 1995-11-14 | 1995-11-14 | Travel limiting device for crawler crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09136787A true JPH09136787A (en) | 1997-05-27 |
Family
ID=17822294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29556595A Pending JPH09136787A (en) | 1995-11-14 | 1995-11-14 | Travel limiting device for crawler crane |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09136787A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010222104A (en) * | 2009-03-24 | 2010-10-07 | Ihi Transport Machinery Co Ltd | Method and device for controlling swing preventing device for jib of crane |
| JP2014167231A (en) * | 2013-02-28 | 2014-09-11 | Kobelco Contstruction Machinery Ltd | Construction machine |
| JP2021104874A (en) * | 2019-12-26 | 2021-07-26 | ヤンマーパワーテクノロジー株式会社 | Construction machine |
-
1995
- 1995-11-14 JP JP29556595A patent/JPH09136787A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010222104A (en) * | 2009-03-24 | 2010-10-07 | Ihi Transport Machinery Co Ltd | Method and device for controlling swing preventing device for jib of crane |
| JP2014167231A (en) * | 2013-02-28 | 2014-09-11 | Kobelco Contstruction Machinery Ltd | Construction machine |
| JP2021104874A (en) * | 2019-12-26 | 2021-07-26 | ヤンマーパワーテクノロジー株式会社 | Construction machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Effective date: 20040518 Free format text: JAPANESE INTERMEDIATE CODE: A02 |