JPS6160931A - Bucket operating structure for shovel working vehicle - Google Patents
Bucket operating structure for shovel working vehicleInfo
- Publication number
- JPS6160931A JPS6160931A JP18413084A JP18413084A JPS6160931A JP S6160931 A JPS6160931 A JP S6160931A JP 18413084 A JP18413084 A JP 18413084A JP 18413084 A JP18413084 A JP 18413084A JP S6160931 A JPS6160931 A JP S6160931A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- bucket
- packet
- stroke end
- control means
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Operation Control Of Excavators (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
零発男は、パケット用シリンダに対する制御用電磁北間
弁を設けたショベル作恭単に2けるパケット操作構造に
闇する。[Detailed Description of the Invention] [Industrial Field of Application] Zero-Hatsuo is interested in a simple two-way packet operation structure for excavators equipped with a control electromagnetic valve for a packet cylinder.
一般に、上記パケット框揺肋可能にf−ム等の先端に取
付けられ、通常このパケットのタンプ方向への揺動操作
端と上記シリンダのストロークエンドとt賂一致させる
構成が多く採用される。In general, the packet frame is swingably attached to the tip of an arm, etc., and the swing operation end of the packet in the tamp direction is generally aligned with the stroke end of the cylinder.
又、従来、前記シリンダの=JIJ構造は以下のコ徨の
構成に大別できる。 第10措或は、土砂の放出の際、
前記シリンダがストロークエンドに達するまで一定速度
で作動するようシリンダに対する油路VCは装置類を介
装しないものであり、%2のa成は、土砂の放出際、前
記シリンダがストロークエンドに達する以前に、その作
動速度が除々に減速できるよう、シリンダに対する油路
にiT変絞り弁等を介装すると共に、この可変絞フ弁等
t11rIIJ記パケットのダング側の操作端への近接
1を出するセンサーと連係し几ものである。Further, conventionally, the =JIJ structure of the cylinder can be roughly divided into the following configurations. Measure 10 or when releasing earth and sand,
The oil passage VC for the cylinder is not interposed with any equipment so that the cylinder operates at a constant speed until the cylinder reaches the stroke end, and the a formation of %2 is such that the cylinder operates at a constant speed before the cylinder reaches the stroke end when discharging earth and sand. In order to gradually reduce the operating speed, an iT variable throttle valve or the like is installed in the oil path for the cylinder, and the variable throttle valve or the like is placed close to the operating end on the dang side of the packet t11rIIJ. It works well in conjunction with sensors.
1]rJe第1の構成のもので、パケットがグング側の
操作端まで一定速度で操作されると、シリンダがストロ
ークエンドに達すると同時1c作動が急停止し、衝撃を
発すると共に、パケット及び、パケットが大9<III
IJ揺する。 従って、土砂が水分?多く含み軟質のも
のであっても、このパケットの動揺によって、土砂かパ
ケット内に付ffi留することなく放出できる反面、こ
の動揺、あるいは衝撃がアーム等全介して車体に伝Qり
不快である。1] With the rJe first configuration, when the packet is operated at a constant speed to the operating end on the gungu side, when the cylinder reaches the stroke end, the operation of 1c suddenly stops, generating an impact, and the packet and... Packet is large 9<III
IJ shake. Therefore, is the sediment water? Even if it is soft and contains a large amount of dirt, it is possible to release dirt and sand without getting stuck in the packet due to the vibration of the packet, but on the other hand, this vibration or impact is transmitted to the car body through the arms etc., which is unpleasant. .
又、n記第2の構成のものでは、シリンダにクッション
作用を持tせることができるtめ、前述の不快感が解消
されるが、土砂が水分を多く含んだ軟質のものでは、土
砂の放出後にパケット内面に土砂が付、f残留しやすい
問題と共に可変絞フ弁等を介装し比ことにニジコストが
高くな)、改良の余地があつ九。In addition, in the second configuration, the cylinder can have a cushioning effect, so the above-mentioned discomfort is eliminated, but if the soil is soft and contains a lot of water, There is a problem that dirt tends to remain on the inner surface of the packet after discharge, and the cost is particularly high due to the installation of a variable throttle valve, etc.), so there is still room for improvement.
本発明は、上記天端に鑑みて為され比ものでろって、合
理的な改造で上記問題が解消さt′したパケット操f’
)Em造を提供する点に目的を有する。The present invention has been made in view of the above-mentioned problem, and is unique in that the above-mentioned problems can be solved by rational modification.
) The purpose is to provide Em structure.
〔問題点を解決する比めの手段〕
本発明の待?R汀、前記シリンダの仲M位置を検出する
センサーの検出情報に基づいて、ストロークエンド近く
におけるシリンダ作動速度全ストロークエンド側ほど低
くする工うに、fQ記電磁比例弁を自MIJ的に閉じ側
にm作する制御手段?I−設けると共に、その制御手段
tfF幼状急と非作動状態とに切換える操作手段を設は
九点にあり、七の作用及び効果は次の通りである。[Comparison means for solving the problem] What is the difference between the present invention and the solution? Based on the detection information of the sensor that detects the middle position of the cylinder, the electromagnetic proportional valve fQ is set to the closing side in terms of MIJ in order to reduce the cylinder operating speed near the stroke end as the total stroke end approaches. Control means to produce m? In addition to providing the control means tfF, there are nine operating means for switching between the infant state and the non-operating state, and the functions and effects of the seventh point are as follows.
りまり、上記の如く、センサーの検出結果に基づいてシ
リンダのf’PIFl速度が、電磁比例弁によって調節
される構成の九め、可変絞り弁を衾油路に介装する必要
なく、又、パケットの駆動速度が比較的高速でもシリン
ダのストロークエンドでクッション作用を持たせること
ができ、しかも、IIJ#手段tf1!動状急と非作動
状態とに切換る操作手段を設けてめる九め、シリンダに
クッション作用金持比せ九作業とパクッ)k拙揺させて
パケット内に土砂が成苗し難くする作業の使い分けがワ
ンタッチで行える。As described above, the f'PIFl speed of the cylinder is adjusted by the electromagnetic proportional valve based on the detection result of the sensor. Even if the packet driving speed is relatively high, it is possible to provide a cushioning effect at the end of the stroke of the cylinder, and moreover, IIJ# means tf1! By providing an operating means to switch between active and non-active states, the cylinder has a cushioning effect, which makes it difficult for seedlings to grow inside the packet by shaking the cylinder. You can use it with just one touch.
従って、従来から用いられている電磁比例弁をセンチ−
と連係させる比較的簡単なi成で、土砂の状WAVC拘
わらずパケット内の土砂ka留少なく放出でき、作業性
を同上させると共に、コストが低く扱いが楽なパケット
操作構造が提供されるに至つ7と。Therefore, the conventional electromagnetic proportional valve is
With a relatively simple i-configuration that is linked to the WAVC, it is possible to release a small amount of dirt and sand from inside the packet regardless of the shape of the WAVC, improving workability and providing a packet operation structure that is low in cost and easy to handle. One seven.
以下、本発明の実施例を図面に基づいて説明する。 Embodiments of the present invention will be described below based on the drawings.
第1図(示すように、走行車体(図外)にその基端を連
結したアーム11)の先端に、4’tb心(P)周シで
揺動自在にパケット(2)ヲ軸支し、このパケット(2
)をリンク(3)を介してパケット用シリンダ(4)で
思幼揺動させるよう連係し、もってショベル作業車の掘
削!12置が構成されている。At the tip of FIG. 1 (as shown, the arm 11 whose base end is connected to the traveling vehicle body (not shown)), a packet (2) is swingably supported around a 4'tb center (P). , this packet (2
) is connected to the packet cylinder (4) through the link (3) so that it can be oscillated, and the excavator is used to excavate! There are 12 positions.
liQ記バクット(2)とシリンダ(4)の連係は、パ
ケット(2)の放出側の揺#J Amとシリンダ(4)
の収縮側のストロークエンドとが略一致するよ5@成さ
れ、シリンダ(4)には複層型のものが用いられている
。 又、シリンダ(4)に対す73弁には1!磁比例弁
+litが用いられ、この弁(51に遅保し九操作レバ
ー(5)の操作量(応じてシリンダ(4)に供給する油
量がlX4節できるようKなっている。The relationship between liQ bakut (2) and cylinder (4) is the rotation #J Am on the discharge side of packet (2) and cylinder (4).
The cylinder (4) is formed so that the stroke end on the contraction side substantially coincides with the cylinder (4), and a multi-layer type cylinder (4) is used. Also, 1 for 73 valves for cylinder (4)! A magnetic proportional valve +lit is used, and the amount of oil supplied to the cylinder (4) can be adjusted by lx4 by the amount of operation of the nine-operation lever (5) by delaying the operation of this valve (51).
尚、電磁比例弁TIIは、レバー等の外部からの操作量
1c応じf1’助油の流蓋を制卸できるよう、弁中の油
路の回度がMfi可能に構成され、弁の側基電磁力を用
いるため、電磁比例弁と称呼されている。The electromagnetic proportional valve TII is configured such that the oil passage in the valve can be turned Mfi in order to control the flow of f1' auxiliary oil according to the amount of operation 1c from the outside, such as a lever. Because it uses electromagnetic force, it is called an electromagnetic proportional valve.
該掘削装置では、パクツF12りK掻き込んだ土砂が水
分を多く含んで、土砂の放出後にもパケット内K(を肴
茂留するのを防止するため、シリンダ(4)を放出側の
ストロークエンドlで一定速度で作動させ、シリンダ(
4)がストロークエンドで急停止した際に生ずる衝撃と
パケット(2)の動揺で、パケット内の土et−落下さ
せる作業と、前記レバー(5)の操f′P麓に拘わらず
シリンダ(4)をストロークエンド近くでその作動速度
を自助的に減少させ、シリンダf4)Kクッション作用
を持たせた作莱との使い分けかげ能になっている。In this excavation equipment, the cylinder (4) is moved to the end of the stroke on the discharge side in order to prevent the soil shoveled by the Pakutsu F12 from containing a large amount of moisture and becoming stuck in the packet even after the soil is discharged. Operate at a constant speed with l and press the cylinder (
4) suddenly stops at the end of its stroke and the oscillation of the packet (2) causes the soil in the packet to fall, and the cylinder (4) ) is able to self-help reduce its operating speed near the stroke end, and can be used selectively with cylinder f4), which has a cushioning effect.
説1すると11ITJ記軸心ψ)にパケット(2)のア
ームfl) K対する揺動角からシリンダ(4)の伸&
ll:を検出するセンチ−(7)を設け、Cニのセンナ
−(7)とマイクロコンビニーりを内蔵する1り御装置
(8)とが連係され、この1lJOQI装置(8)と冊
記比例制御弁(5)とが連係されて副側手段が構成され
ている。According to Theory 1, the cylinder (4) is extended &
A sensor (7) for detecting ll: is provided, and the C sensor (7) and a control device (8) with a built-in micro convenience sensor are linked, and this 1l JOQI device (8) and the book The proportional control valve (5) is linked to constitute a sub-side means.
第2図に示すようく、前記1i1J御装@(8)はシリ
ンダ(4)の収NM度が同図(Hlで示す高い値であっ
ても、又、同図に(L)で示す低い値であっても1同図
に(Alで示す直線に沿ってシリンダ(4)のf’li
助速度が低下し、最終的には、ストロークエンド(E)
でそのf1!勤を完全罠停止させるよう、前記弁(5)
を閉じ方向に操作するプログラムが設定されている。As shown in Figure 2, the 1i1J Goso @ (8) has a cylinder (4) with a high NM absorption degree as shown in the figure (Hl), but also a low value as shown in (L) in the same figure. Even if the value is 1, f'li of cylinder (4) along the straight line indicated by Al (in the same figure)
The acceleration speed decreases and eventually reaches the stroke end (E)
And that f1! The valve (5) is configured to completely stop the operation.
A program has been set up to operate the button in the closing direction.
尚、第2図は、縦軸にシリンダ(4)の作動速度(単位
は国/S)、横軸にシリンダ(4)の収縮量(単位は0
X)を決め九グラフでるる。In addition, in Figure 2, the vertical axis shows the operating speed of the cylinder (4) (unit: country/s), and the horizontal axis shows the amount of contraction of the cylinder (4) (unit: 0).
Determine X) and draw the nine graphs.
又、制御装置(8)は笈1図中(9)で示す操作手段、
つまり、スイッチによってIf、IJ御手段を作動状態
と非作肋状思とに切換操作が可能で6る。In addition, the control device (8) includes an operating means indicated by (9) in the figure 1,
In other words, the If and IJ control means can be switched between an activated state and a non-activated state using a switch.
木実雄側ではシリンダ(4)のyjc速tl−直線に沿
わせるようプログラムと設定し−C必ったが、非侃型の
グラフに沿わせてシリンダ(4)の減速を行うようプロ
グラムを設定して実施して良く、又、制御装@(8)を
マイクロコンピュータでm成しCいたが、これに代えて
ノ1−ド回路で−J御装随(8)を構成しても良い。On Kimio's side, the program was set to make the cylinder (4)'s yjc speed tl-along the -C line, but the program was set to decelerate the cylinder (4) to follow the non-standard graph. In addition, although the control unit (8) was constructed using a microcomputer, the control unit (8) may be constructed using a node circuit instead. .
又、シリンダ(4)の収縮量をパケット+21の放出方
向に設定してるり九が、伸長側をノ(グツト(2)のグ
ラフ側に設定して艮く、又、センブー鬼7))てリニヤ
梨のものでl−81/−1、シリンダ(4)に1区接奴
イづけて実施しても艮い。Also, the contraction amount of cylinder (4) is set to the release direction of packet +21, and the expansion side is set to the graph side of (2), and Senbu Oni 7)). It is no problem even if it is carried out with linear pear l-81/-1 and cylinder (4) with 1-section contact.
図面tよ本発明にイ爪るショベル作業車にVけるパケッ
ト操作構造の実施例1を示し、第1図はパケットの駆幼
糸及び冶Iノ御糸を示す概略側面図、第2図はパケット
用シリンダの試速状I2!Iを示すグラフである。
(4)・・・・・・パケット用シリンダ、(61・・・
・・・電磁比例 。
弁、+71・・・・・・センチ−0
代理人 弁理士 北 村 6
第 1 図
i2 図Drawing t shows Embodiment 1 of a packet operation structure for an excavator working vehicle according to the present invention. Test speed of packet cylinder I2! It is a graph showing I. (4)...Packet cylinder, (61...
...Electromagnetic proportionality. Valve, +71...cm-0 Agent Patent attorney Kitamura 6 Figure 1 Figure i2
Claims (1)
5)を設けたショベル作業車におけるパケット操作構造
であつて、前記シリンダ(4)の伸縮位置を検出するセ
ンサー(7)の検出情報に基づいて、ストロークエンド
近くにおけるシリンダ作動速度をストロークエンド側ほ
ど低くするように、前記電磁比例弁(5)を自動的に閉
じ側に操作する制御手段を設けると共に、その制御手段
を作動状態と非作動状態とに切換える操作手段を設けた
ショベル作業車におけるパケット操作構造。Control electromagnetic proportional valve (
5), the cylinder operating speed near the stroke end is adjusted as the stroke end approaches, based on the detection information of the sensor (7) that detects the expansion/contraction position of the cylinder (4). A packet in an excavator work vehicle, which is provided with a control means for automatically operating the electromagnetic proportional valve (5) to the closing side so as to lower the temperature, and an operation means for switching the control means between an operating state and a non-operating state. Operation structure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18413084A JPS6160931A (en) | 1984-09-03 | 1984-09-03 | Bucket operating structure for shovel working vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18413084A JPS6160931A (en) | 1984-09-03 | 1984-09-03 | Bucket operating structure for shovel working vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6160931A true JPS6160931A (en) | 1986-03-28 |
Family
ID=16147899
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18413084A Pending JPS6160931A (en) | 1984-09-03 | 1984-09-03 | Bucket operating structure for shovel working vehicle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6160931A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6363830A (en) * | 1986-09-05 | 1988-03-22 | Komatsu Ltd | Stroke and control system for lift cylinder of bulldozer |
WO1990001588A1 (en) * | 1988-08-02 | 1990-02-22 | Kabushiki Kaisha Komatsu Seisakusho | Moving speed regulator for hydraulically driven working machines |
JPH02140333A (en) * | 1988-11-18 | 1990-05-30 | Kubota Ltd | Swing controller for backhoe |
JPH02188690A (en) * | 1989-01-13 | 1990-07-24 | Sayama Seisakusho:Kk | Device for installing submersible pump into water vessel |
US4964779A (en) * | 1986-09-03 | 1990-10-23 | Clark Equipment Company | Electronic bucket positioning and control system |
JPH03257229A (en) * | 1990-03-07 | 1991-11-15 | Kubota Corp | Controller of backhoe |
JPH04333730A (en) * | 1991-05-10 | 1992-11-20 | Kubota Corp | Back-hoe |
US6129158A (en) * | 1996-12-27 | 2000-10-10 | Komatsu Ltd. | Hydraulic system for bulldozer |
JP2010261521A (en) * | 2009-05-08 | 2010-11-18 | Kobelco Contstruction Machinery Ltd | Electronic cushion control device of hydraulic cylinder |
WO2023127436A1 (en) * | 2021-12-28 | 2023-07-06 | 株式会社クボタ | Hydraulic system for work machine, and method for controlling hydraulic system for work machine |
-
1984
- 1984-09-03 JP JP18413084A patent/JPS6160931A/en active Pending
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4964779A (en) * | 1986-09-03 | 1990-10-23 | Clark Equipment Company | Electronic bucket positioning and control system |
JPS6363830A (en) * | 1986-09-05 | 1988-03-22 | Komatsu Ltd | Stroke and control system for lift cylinder of bulldozer |
WO1990001588A1 (en) * | 1988-08-02 | 1990-02-22 | Kabushiki Kaisha Komatsu Seisakusho | Moving speed regulator for hydraulically driven working machines |
US5174190A (en) * | 1988-08-02 | 1992-12-29 | Komatsu Mec Corp. | Moving speed regulator for hydraulically driven work implement |
JPH02140333A (en) * | 1988-11-18 | 1990-05-30 | Kubota Ltd | Swing controller for backhoe |
JPH02188690A (en) * | 1989-01-13 | 1990-07-24 | Sayama Seisakusho:Kk | Device for installing submersible pump into water vessel |
JPH03257229A (en) * | 1990-03-07 | 1991-11-15 | Kubota Corp | Controller of backhoe |
JPH04333730A (en) * | 1991-05-10 | 1992-11-20 | Kubota Corp | Back-hoe |
US6129158A (en) * | 1996-12-27 | 2000-10-10 | Komatsu Ltd. | Hydraulic system for bulldozer |
JP2010261521A (en) * | 2009-05-08 | 2010-11-18 | Kobelco Contstruction Machinery Ltd | Electronic cushion control device of hydraulic cylinder |
WO2023127436A1 (en) * | 2021-12-28 | 2023-07-06 | 株式会社クボタ | Hydraulic system for work machine, and method for controlling hydraulic system for work machine |
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