JPS647199U - - Google Patents
Info
- Publication number
- JPS647199U JPS647199U JP10073287U JP10073287U JPS647199U JP S647199 U JPS647199 U JP S647199U JP 10073287 U JP10073287 U JP 10073287U JP 10073287 U JP10073287 U JP 10073287U JP S647199 U JPS647199 U JP S647199U
- Authority
- JP
- Japan
- Prior art keywords
- boom
- detector
- detects
- moment
- load
- 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.)
- Granted
Links
- 230000002265 prevention Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Jib Cranes (AREA)
- Forklifts And Lifting Vehicles (AREA)
Description
図面は本考案に係る作業機の過負荷防止装置の
一実施例を示すもので、第１図は作業車の側面図
、第２図は過負荷防止装置のブロツク図、第３図
はブームに作用するモーメントの方向を示す図で
ある。
１……高所作業車、２……ターンテーブル、３
……ブーム、４……フートピン、５……起伏シリ
ンダー、６……起伏角度検出器、７……ブーム長
検出器、８……第１の負荷検出器、９……第２の
負荷検出器、１０……作業台、１１……サブフレ
ーム、１２……限界モーメント演算器、１３……
実際のモーメント演算器、１４……比較器。
The drawings show an embodiment of the overload prevention device for a working machine according to the present invention. Figure 1 is a side view of the working vehicle, Figure 2 is a block diagram of the overload prevention device, and Figure 3 is a diagram of the overload prevention device on the boom. It is a figure showing the direction of the moment which acts. 1...Aerial work vehicle, 2...Turntable, 3
...Boom, 4...Foot pin, 5...Luffing cylinder, 6...Luffing angle detector, 7...Boom length detector, 8...First load detector, 9...Second load detector , 10...Workbench, 11...Subframe, 12...Limit moment calculator, 13...
Actual moment calculator, 14... comparator.
Claims (1)
える作業機に於いて、ブームの起伏角度を検出す
る起伏角度検出器と、ブームの長さを検出するブ
ーム長検出器と、ブームに作用する負荷でブーム
の起伏内面に作用する負荷を検出する第１の負荷
検出器と、ブームに作用する負荷でブームの起伏
内面に直交する平面内に作用する負荷を検出する
第２の負荷検出器と、前記起伏角度検出器及びブ
ーム長検出器からの検出信号に基づき水平面内の
直交２軸回りの限界モーメントを演算する限界モ
ーメント演算器と、前記起伏角度検出器、ブーム
長検出器、第１、第２の負荷検出器の検出信号に
基づき実際のモーメントを演算する実際のモーメ
ント演算器とを装備し、前記限界モーメント演算
器で求めた限界モーメントと前記実際のモーメン
ト演算器で求めた直交２軸回りの実際のモーメン
トとを比較器で比較し、該比較器の出力でもつて
前記ブームの駆動等を規制するようにしたことを
特徴とする作業機の過負荷防止装置。 In work equipment equipped with a boom such as an aerial work vehicle or a crane, there is a luffing angle detector that detects the luffing angle of the boom, a boom length detector that detects the length of the boom, and a boom that detects the load acting on the boom. a first load detector that detects a load acting on the undulating inner surface of the boom; a second load detector that detects a load acting on the boom in a plane orthogonal to the undulating inner surface of the boom; a critical moment calculator that calculates critical moments around two orthogonal axes in a horizontal plane based on detection signals from the angle detector and the boom length detector; Equipped with an actual moment calculator that calculates the actual moment based on the detection signal of the load detector, the limit moment calculated by the limit moment calculator and the actual moment around two orthogonal axes calculated by the actual moment calculator are equipped. 1. An overload prevention device for a working machine, characterized in that a comparator compares the moment of the boom, and the output of the comparator is used to regulate the drive of the boom, etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10073287U JPH061590Y2 (en) | 1987-06-30 | 1987-06-30 | Overload prevention device for work equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10073287U JPH061590Y2 (en) | 1987-06-30 | 1987-06-30 | Overload prevention device for work equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS647199U true JPS647199U (en) | 1989-01-17 |
| JPH061590Y2 JPH061590Y2 (en) | 1994-01-12 |
Family
ID=31329073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10073287U Expired - Lifetime JPH061590Y2 (en) | 1987-06-30 | 1987-06-30 | Overload prevention device for work equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH061590Y2 (en) |
-
1987
- 1987-06-30 JP JP10073287U patent/JPH061590Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH061590Y2 (en) | 1994-01-12 |
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