JPH041261U - - Google Patents
Info
- Publication number
- JPH041261U JPH041261U JP682290U JP682290U JPH041261U JP H041261 U JPH041261 U JP H041261U JP 682290 U JP682290 U JP 682290U JP 682290 U JP682290 U JP 682290U JP H041261 U JPH041261 U JP H041261U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- valve
- swing
- bucket
- arm
- 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
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims 1
- 238000011105 stabilization Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Operation Control Of Excavators (AREA)
- Component Parts Of Construction Machinery (AREA)
Description
第１図〜第３図は、本考案実施例にもとづく油
圧式掘削機における側方姿勢安定装置を示す図で
、第１図は油圧式掘削機における側方姿勢安定装
置の電気油圧回路図、第２図ａはドグ及び旋回角
度検出用リミツトスイツチの取り付け関係を示す
スイングサークル部の断面図、第２図ｂはドグと
旋回角度検出用リミツトスイツチが接触する範囲
を示す図、第３図は側方作業姿勢における許容作
業範囲を示す図である。
１……油圧ポンプ、２……旋回操作弁、３……
アーム操作弁、４……バケツト操作弁、５……ブ
ーム操作弁、６……旋回操作レバー、７……アー
ム操作レバー、８……バケツト操作レバー、９…
…制御油圧ポンプ、１０……電磁開閉弁、１１…
…旋回油圧モータ、１２……アームシリンダー、
１３……バケツトシリンダー、１４……切換スイ
ツチ、１５……ブームシリンダー、１６……油圧
スイツチ、１７……赤色警告灯、１８……リミツ
トスイツチ、１９……ドグ、２０……黄色側方作
業灯、２１……上部旋回体、２２……下部走行体
、２３……作業機、２４……電源。
1 to 3 are diagrams showing a lateral attitude stabilizing device for a hydraulic excavator based on an embodiment of the present invention, and FIG. 1 is an electro-hydraulic circuit diagram of the lateral attitude stabilizing device for a hydraulic excavator; Fig. 2a is a sectional view of the swing circle section showing the attachment relationship between the dog and the limit switch for detecting the turning angle, Fig. 2b is a diagram showing the contact area between the dog and the limit switch for detecting the turning angle, and Fig. 3 is a side view. It is a figure showing the permissible work range in a work posture. 1...Hydraulic pump, 2...Swivel operation valve, 3...
Arm operating valve, 4...Bucket operating valve, 5...Boom operating valve, 6...Swivel operating lever, 7...Arm operating lever, 8...Bucket operating lever, 9...
...Controlled hydraulic pump, 10...Solenoid on-off valve, 11...
...Swivel hydraulic motor, 12...Arm cylinder,
13...bucket cylinder, 14...changeover switch, 15...boom cylinder, 16...hydraulic switch, 17...red warning light, 18...limit switch, 19...dog, 20...yellow side work light , 21... Upper rotating body, 22... Lower traveling body, 23... Working machine, 24... Power source.
Claims (1)
可能に支持されると共に、作業機を備えた上部旋
回体とにより構成される油圧式掘削機において、
前記下部走行体に対する上部旋回体の旋回角度を
検出する旋回角度検出器を設けると共に、ブーム
シリンダボトム油圧を検出する油圧検出器を設け
、前記旋回角度検出器の検出値が所定の範囲内に
ある前記油圧式掘削機の側方姿勢時に、前記油圧
検出器の検出値が所定値を超えるときには、前記
作業機駆動用アクチユエータの各操作弁の内、旋
回操作弁、アーム操作弁の押出し側、およびバケ
ツト操作弁のダンプ側への操作信号をカツトする
ことにより、前記各操作弁の操作レバーを操作し
ても、上部旋回体の旋回、アームの押出し、およ
びバケツトのダンプ作動を不能とすることにより
、車体が転倒する危険性を防止することを特徴と
する油圧式掘削機における側方姿勢安定装置。 (2) 前記第(1)の請求項において、前記下部走行
体に対する上部旋回体の旋回角度を検出する検出
器をリミツトスイツチとすると共に、前記作業機
駆動用アクチユエータの各操作弁を制御油圧コン
トロール方式として、作業機レバーによつて制御
される比例圧力弁と、前記旋回操作弁の左右旋回
側、アーム操作弁の押出し側、およびバケツト操
作弁のダンプ側制御油圧シリンダとをそれぞれ電
磁開閉弁を介して接続するよう構成し、前記リミ
ツトスイツチ、および油圧検出器により、前記油
圧式掘削機の側方姿勢時に、前記油圧検出器の検
出値が所定値を超えるときには、前記電磁開閉弁
を遮断位置に切り換えて、前記各作業機レバーを
操作しても、上部旋回体の左右方向への旋回、ア
ームの押出し、およびバケツトのダンプ作動を不
能とすることにより、車体が転倒する危険性を防
止することを特徴とする油圧式掘削機における側
方姿勢安定装置。[Claims for Utility Model Registration] (1) A hydraulic excavator consisting of a lower traveling body and an upper revolving body rotatably supported by the lower traveling body and equipped with a working implement,
A swing angle detector for detecting a swing angle of the upper swing structure with respect to the lower traveling structure is provided, and a hydraulic pressure detector for detecting a boom cylinder bottom oil pressure is provided, and a detected value of the swing angle detector is within a predetermined range. When the detected value of the hydraulic pressure detector exceeds a predetermined value when the hydraulic excavator is in a lateral position, among the operation valves of the work equipment drive actuator, the swing operation valve, the push-out side of the arm operation valve, and By cutting off the operation signal to the dump side of the bucket operation valve, even if the operation lever of each of the operation valves is operated, the rotation of the upper revolving structure, the pushing out of the arm, and the dumping operation of the bucket can be made impossible. A lateral attitude stabilizing device for a hydraulic excavator, which is characterized by preventing the risk of the vehicle body overturning. (2) In claim (1) above, a limit switch is used as a detector for detecting the rotation angle of the upper rotating structure with respect to the lower traveling structure, and each operating valve of the actuator for driving the work equipment is controlled by a hydraulic control system. The proportional pressure valve controlled by the work equipment lever, the left and right swing side of the swing operation valve, the push side of the arm operation valve, and the dump side control hydraulic cylinder of the bucket operation valve are connected via electromagnetic on-off valves, respectively. The limit switch and the hydraulic pressure detector switch the electromagnetic on-off valve to a cutoff position when the detected value of the hydraulic pressure detector exceeds a predetermined value when the hydraulic excavator is in a lateral position. Even if each of the work equipment levers is operated, the upper revolving body cannot be turned left or right, the arm can be pushed out, and the bucket cannot be dumped, thereby preventing the risk of the vehicle body overturning. Characteristic lateral attitude stabilization device for hydraulic excavators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990006822U JPH086836Y2 (en) | 1990-01-26 | 1990-01-26 | Lateral posture stabilizer for hydraulic excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990006822U JPH086836Y2 (en) | 1990-01-26 | 1990-01-26 | Lateral posture stabilizer for hydraulic excavator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH041261U true JPH041261U (en) | 1992-01-08 |
| JPH086836Y2 JPH086836Y2 (en) | 1996-02-28 |
Family
ID=31510495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990006822U Expired - Lifetime JPH086836Y2 (en) | 1990-01-26 | 1990-01-26 | Lateral posture stabilizer for hydraulic excavator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH086836Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009174197A (en) * | 2008-01-24 | 2009-08-06 | Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd | Work range restriction device of two stage folding high altitude demolishing machine |
| JP2012017626A (en) * | 2010-07-09 | 2012-01-26 | Caterpillar Sarl | Work range control device of work machine |
| JP2012140775A (en) * | 2010-12-28 | 2012-07-26 | Hitachi Constr Mach Co Ltd | Revolving type working machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53127702U (en) * | 1977-03-17 | 1978-10-11 | ||
| JPS5972333A (en) * | 1982-10-18 | 1984-04-24 | Hitachi Constr Mach Co Ltd | Falling preventer for oil-pressure shovel |
-
1990
- 1990-01-26 JP JP1990006822U patent/JPH086836Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53127702U (en) * | 1977-03-17 | 1978-10-11 | ||
| JPS5972333A (en) * | 1982-10-18 | 1984-04-24 | Hitachi Constr Mach Co Ltd | Falling preventer for oil-pressure shovel |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009174197A (en) * | 2008-01-24 | 2009-08-06 | Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd | Work range restriction device of two stage folding high altitude demolishing machine |
| JP4559493B2 (en) * | 2008-01-24 | 2010-10-06 | 住友建機株式会社 | Working range regulating device for two-stage folding type high-end dismantling machine |
| JP2012017626A (en) * | 2010-07-09 | 2012-01-26 | Caterpillar Sarl | Work range control device of work machine |
| JP2012140775A (en) * | 2010-12-28 | 2012-07-26 | Hitachi Constr Mach Co Ltd | Revolving type working machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH086836Y2 (en) | 1996-02-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3978998A (en) | Fast hoist control system | |
| JPH041261U (en) | ||
| US4344497A (en) | Override control for axle locking apparatus of mobile crane | |
| JPH07207711A (en) | Overturn preventing device for construction machine | |
| JP2784593B2 (en) | Lifting machine | |
| JPH0288824A (en) | Operational structure of back-hoe device | |
| JP4481264B2 (en) | Wheel brake autobrake method and wheel loader | |
| JP2574081Y2 (en) | Automatic stop device for overload of self-propelled gripping machine | |
| JPH0533359A (en) | Small-sized back hoe of full swing type | |
| JPH0545642Y2 (en) | ||
| JP3441772B2 (en) | Hydraulic excavator travel restriction device | |
| JPH0330218Y2 (en) | ||
| JP4481265B2 (en) | Wheel loader | |
| JPH0720206Y2 (en) | Revolving work machine with lifting ladder | |
| JPH0721650Y2 (en) | Vehicle turning device | |
| JPH01271529A (en) | Automatic offsetting mechanism of small revolution type backhoe | |
| JPS6322807Y2 (en) | ||
| JPH01192920A (en) | Construction machine | |
| JPH04202920A (en) | Boom height limiting device | |
| JP3575550B2 (en) | Control device of dump truck for track and land | |
| JPH08177088A (en) | Safety device of traveling body for construction machinery | |
| JP2004262303A (en) | Working vehicle | |
| JPS61221424A (en) | Horizontal controller for working tool of front loader | |
| JPH0527556Y2 (en) | ||
| JPH06264464A (en) | Power shovel |