JPH02225730A - Controller of upper part swiveling body in hydraulic excavator - Google Patents

Controller of upper part swiveling body in hydraulic excavator

Info

Publication number
JPH02225730A
JPH02225730A JP4698489A JP4698489A JPH02225730A JP H02225730 A JPH02225730 A JP H02225730A JP 4698489 A JP4698489 A JP 4698489A JP 4698489 A JP4698489 A JP 4698489A JP H02225730 A JPH02225730 A JP H02225730A
Authority
JP
Japan
Prior art keywords
pressure
valve
controller
meter
controlled
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
Application number
JP4698489A
Other languages
Japanese (ja)
Inventor
Yukio Moriya
森谷 幸雄
Takumi Onoda
小野田 匠
Fujitoshi Takamura
高村 藤寿
Toshio Yokoyama
横山 登司男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Komatsu Ltd
Original Assignee
Komatsu Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP4698489A priority Critical patent/JPH02225730A/en
Priority to EP19900903220 priority patent/EP0461258A4/en
Priority to PCT/JP1990/000184 priority patent/WO1990010117A1/en
Publication of JPH02225730A publication Critical patent/JPH02225730A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08Superstructures; Supports for superstructures
    • E02F9/10Supports for movable superstructures mounted on travelling or walking gears or on other superstructures
    • E02F9/12Slewing or traversing gears
    • E02F9/121Turntables, i.e. structure rotatable about 360°
    • E02F9/123Drives or control devices specially adapted therefor
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08Superstructures; Supports for superstructures
    • E02F9/10Supports for movable superstructures mounted on travelling or walking gears or on other superstructures
    • E02F9/12Slewing or traversing gears
    • E02F9/121Turntables, i.e. structure rotatable about 360°
    • E02F9/128Braking systems

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)
  • Fluid-Pressure Circuits (AREA)

Abstract

PURPOSE:To promote swiveling control efficiency by providing a pressure controlling valve to be controlled by a proportional electromagnetic valve and a controller in a hydraulic controlling circuit, and controlling inlet pressure and outlet pressure of a driving motor. CONSTITUTION:When an upper part swiveling body driving motor 3 is accelerated at the time of right directional swiveling, an accelerating signal equivalent to a swiveling speed of the driving motor 3 is outputted to a solenoid A for a proportional electromagnetic valve 8 of a meter-in-poppet valve 2 from a controller 7. After that, a signal to become set pressure corresponding to an open signal of the poppet valve is outputted to a pressure control valve 10. In case the driving motor 3 is decelerated, a deceleration signal is outputted to the solenoid A for a proportional electromagnetic valve 8a of a meter-out-poppet valve 9 from the controller 7. In addition, a signal to produce set pressure corresponding to the open signal of the poppet valve is outputted to the solenoid of a pressure control valve 11. Driving pressure of damping pressure of the upper swiveling body is controlled according to acceleration or decelerated amount. According to this constitution, rapid pressure boosting is prevented, and shock of a hydraulic excavator can be reduced.

Description

【発明の詳細な説明】 (産業−にの利用分野) 本発明は油圧掘削機械において運転室及び作業機等を喝
えた上部旋回体の油圧駆動装置に関し、特に、慣性の大
きい上部旋回体を加速または減速する場かに油圧管路の
2滋な圧り上ヰを防止するよ)にした油圧掘削機械にお
1.+ろ11部淀回体の′!A御装蓋装置するらのであ
る。
Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a hydraulic drive device for an upper revolving body that drives a driver's cab, working equipment, etc. in a hydraulic excavation machine. 1. For hydraulic excavation machines that are designed to prevent overloading of hydraulic pipelines during deceleration or deceleration. +Ro part 11 Yodomaitai'! This is the A control device.

(従来の技術) 従来、この種油圧掘削機械における上部旋回体の制御装
置は第3図に示すごとく油圧ポンプ1の吐出管路にメー
タインポペット弁2を介して上部旋回体駆動モータ3の
一方の口を接続し1、該駆動モ・−タ3の他方の口をメ
ータアウトポペット弁4を介してタンク5に接続し、ま
た、1・自圧ポンプ1の吐出管路にメータインポペット
弁12を介して前記駆÷カモータ3の他方の口を接続し
、該駆動モータ:iの一方の入口をメ・−タアウトポベ
ッ磁弁15をかしてタンク5に接続した制御回路を構成
している。前記メータインポペット弁2のパイロット管
路を面記/−タインポベ・!磁弁2の一ヒ流測から下流
側に、イリフィ7.6及びコントローラ7により制御さ
れる比例電磁ブC8を介して形成し、土な前記メ・−タ
アウトボベゾ磁弁・1のパイロット管路を前記メータア
ウトポベ・ノ)弁4の上流側から下流側にオリフィス9
及び前記コントローラ7によr)馴卸さ7Lる比例を自
弁8aを今して形成しており、また、前記メータインポ
ベ−y )弁12のパイロ・=、 )管路を前記メータ
インボベ・ン磁弁12の上流側から下流側に、すりフィ
ス13及びコントローラ7により1+1%さ江る比y4
を自弁14を介して形成し、また、前記メータアウトポ
ペット弁15のパイロットf路を前記メータアウトポペ
ット弁15のL流側から下流側にオリフィス16及び前
記コントローラ7により制御される比例電磁弁14aを
午して形成している。次に作用について説明する6上部
旋回体を右旋回させるときには電気レバー11の操作量
に応じてコントローラ7から旋回速度信号を比例電磁i
s及び8aのソレノイPAに出力すると、該信号に応じ
た量のパイロット流がメータインポペット弁2の上流側
から下流側へ生ずる。従って、オリフィス6によりメー
タ。
(Prior Art) Conventionally, as shown in FIG. 3, a control device for an upper rotating body in this type of hydraulic excavation machine connects one side of an upper rotating body drive motor 3 to a discharge pipe of a hydraulic pump 1 via a meter-in poppet valve 2. 1. Connect the other port of the drive motor 3 to the tank 5 via the meter-out poppet valve 4; 12, and one inlet of the drive motor 3 is connected to the tank 5 through a solenoid valve 15, forming a control circuit. . Mark the pilot line of the meter-in poppet valve 2/-tine poppet valve! On the downstream side from the current measurement of the magnetic valve 2, a pilot conduit for the above-mentioned meter-out magnetic valve 1 is formed via a proportional solenoid valve C8 controlled by the Irifi 7.6 and the controller 7. An orifice 9 is provided from the upstream side to the downstream side of the meter out valve 4.
and the controller 7 is used to form a proportion of the self-valve 8a, and the meter-in-place valve 12 is connected to the meter-in-place valve 12. From the upstream side of
is formed through the self-valve 14, and the pilot f path of the meter-out poppet valve 15 is connected downstream from the L flow side of the meter-out poppet valve 15 to an orifice 16 and a proportional solenoid valve 14a controlled by the controller 7. It is formed in the afternoon. Next, the operation will be explained. 6 When the upper rotating body is turned to the right, a turning speed signal is sent from the controller 7 according to the amount of operation of the electric lever 11 to the proportional electromagnetic i.
When outputted to the solenoid PA of s and 8a, a pilot flow corresponding to the signal is generated from the upstream side to the downstream side of the meter-in poppet valve 2. Therefore, the meter by orifice 6.

イシボベt磁弁2の上下i女間に前記パイロット流量に
応じた差圧が発生することによりメータインボベ・7ト
弁2の開度か決定するため、該開度に応ヒ′Cメータイ
ンポペット弁2を通過する流量が決定される。また、前
記信号に応じた量のパイ【7・lト流がメータアウトポ
ペット弁4の上下流間に生ずる。従ってオリフィス9に
よりメータアウトポペット弁4の上下流間に前記パイロ
ット流量に応じた差圧が発生する二とにより前記メータ
インポペット弁2と同様にしてメータアウトポペット弁
4を通過する流量が決定される。前記/−タインポベ・
t ) if 2を通過する流量及びメータアウトポペ
ット弁4を通過する流量に応じて凸記駆動モータ3の右
旋同速度が得られる。f:部旋回体を左栓回させるとき
に′)いても電気レバー17の操作量に応じてコン!・
ローラ7から旋回速度信号を比例電磁弁14及び14;
lのツレ/イドBに出力すると、該信号に応じた量のパ
イロット流がメータインポペットfF2の上流側から下
流側−2,またメータアウトボベ・1ト弁15の上下流
間に生ずる6従・2て、前記右旋回の時と同様にして上
部旋回体駆動モータ3の左旋回速度が得られる。一方f
yit記コントローラ7からソレノイドA及びBに出力
される信号に応じた信号が油圧ポンプ1の吐出量制押装
711 aにも出力されるため、前記メータインポペッ
ト弁2.14及びメータアウトポペット弁415を通過
する流量に応じた吐出量となるように油圧ポンプ1を制
御する。
The opening degree of the meter-in-place valve 2 is determined by the generation of a differential pressure between the upper and lower sides of the solenoid valve 2 according to the pilot flow rate. 2 is determined. Furthermore, a flow of 7.1 cm is generated between the upstream and downstream sides of the meter-out poppet valve 4 in an amount corresponding to the signal. Therefore, the flow rate passing through the meter-out poppet valve 4 is determined in the same way as the meter-in poppet valve 2 by the orifice 9 generating a pressure difference between the upstream and downstream sides of the meter-out poppet valve 4 according to the pilot flow rate. Ru. Said/- Tine Pobe・
t) if 2 and the flow rate passing through the meter-out poppet valve 4, the right rotation speed of the raised drive motor 3 is obtained. f: When rotating the rotating body to the left, even if the rotating body is rotated to the left, it will be controlled according to the amount of operation of the electric lever 17.・
Proportional solenoid valves 14 and 14 receive the rotation speed signal from the roller 7;
When the signal is output to the valve 1, a pilot flow corresponding to the signal is generated from the upstream side of the meter-in poppet fF2 to the downstream side-2, and between the upstream and downstream sides of the meter-out valve 15. -2nd, the left turning speed of the upper rotating body drive motor 3 is obtained in the same manner as in the case of right turning. On the other hand f
Since a signal corresponding to the signal output from the controller 7 to the solenoids A and B is also output to the discharge amount control device 711a of the hydraulic pump 1, the meter-in poppet valve 2.14 and the meter-out poppet valve The hydraulic pump 1 is controlled so that the discharge amount corresponds to the flow rate passing through the pump 415.

(発明が解決しようとする課I1) 前記従来の技術においては右旋回、左旋回に係すらr上
部旋回体の慣性が大きいため上部旋回体駆動モータ3の
加速時または減速時に駆動油圧または制動油圧が急上作
して作動油が最高油圧規定弁18.19を全してタンク
に戻りその分だけ前記駆動モータ3の速度が減少する。
(Problem I1 to be Solved by the Invention) In the above-mentioned conventional technology, the inertia of the upper rotating body is large even when turning to the right or left, so the driving hydraulic pressure or braking is not applied when the upper rotating body drive motor 3 accelerates or decelerates. The oil pressure suddenly increases and all the hydraulic oil passes through the highest oil pressure regulating valves 18 and 19 and returns to the tank, reducing the speed of the drive motor 3 by that amount.

従って、オペレータが前記駆動モータ3を制御する場合
には前記ft!動油が最高油田規定弁18.19を介し
てタンクに戻る分だけ番目に操作する必要があるが、こ
の多口に操fセする量は上部旋回体の速度等に上り一様
でないため龜くの熟練度が必要であった。また、駆動油
圧または制動油圧を制御できないために加速時または減
速時に駆動油圧または制動油圧が3上昇してスムーてな
加速性及び減速性が得られず旋回i1+!御性が劣る問
題があった。
Therefore, when the operator controls the drive motor 3, the ft! It is necessary to operate the hydraulic oil as much as possible to return to the tank via the highest oil field regulation valve 18. A great deal of skill was required. In addition, since the driving oil pressure or the braking oil pressure cannot be controlled, the driving oil pressure or the braking oil pressure increases by 3 during acceleration or deceleration, making it impossible to obtain smooth acceleration and deceleration and turning i1+! There was a problem of poor control.

(課題を解決するための手段) 本発明は前記従来の技術における課題を解決するために
なされたもので、第(1)の請求項は、油圧ポンプlの
吐出管路にメータインポペット弁2を介して上部旋回体
駆動モータ3の入口を接続し、該駆動モータ3の出口を
メータアウトポペット弁4を介してタンク5に接続し、
前記メータインポペット弁f2のパイロット管路を前記
メータインポペット弁2の1流側から下1ζ側に、オリ
フィス6及びコントローラ7によ0M9pされる比fM
’AE磁弁8を自弁て彩成し、また、前記メータアウト
ポペット弁4のパイロl)管路を前記メータアウトポペ
ツト弁4の上流側から下流側にオリフィス9及び前記コ
ントロ・−ラフにより制御される比1f11を自弁8a
を介して形成した油圧υ制御回路において、前記比例電
磁弁8及び8aと共に前記コントローラ7により制御さ
れる匡力制御弁lO及び11により、それぞれ前記駆動
モータ3の入口圧力及び出口TカをvI即するようにし
たことを特徴とする油圧掘削機械における上部旋回体の
制911装五により、第(2)の請求項は、前記第(1
)の請求項において前記上部旋回体駆動モータ3の駆動
圧力を、前記コントローラ7から出力される1記駆動壬
−夕3の増速信号に応じて増加するように柄押し、Ei
I記駆動駆動モータ3動圧力を、前記コントローラ7か
ら出力される前記モータ3の減速信号に応じて増加する
ように1lilf卸することを特徴とする油圧掘削機械
における上@旋回体の:!/A御装置により、第(3)
の1a求項は、日記第(]、 )のm求項において油圧
ポンプ1の吐出管路にメータインポペット弁12を介し
て上部旋回体駆動モータ3の7a口を接続し、該駆動モ
ータ3の入口をメ・−タンクI・ポペット弁15を介し
てタンク5に1妾続し、市記メータインボベ・1ト弁1
2のパイa−lト管路を前記メータインポペット弁12
の下流側から下流側に、オリフィス13及びコントロー
ラ7により制御される比例電磁弁14を介して形成しま
た、前記メータアウトポペツト弁15のバイロント管路
を前記メータアウトポペット弁15の上流側から下流側
にオリフィス16及び前記コンドローラフにより制御さ
tLる比例電磁ブP14aを介して形成した油圧、t4
御回路において、前記駆動モータ3の逆転時には前記比
例電磁弁14及び14aと共に前記コントローラ7によ
り制御される圧力別御弁11及び10により、それぞれ
前記駆動モータ3の入口圧力及び出口順方を制御するよ
うにしたことを特徴とする油穿駕前機械における上部旋
回体のM押装置により、第(4)の請求項は前記第(3
)の請求項において前記上部旋回体駆動モータ3の駆動
圧力を、前記コントローラ7から出力される前記駆動モ
ータ3の増速信号に応じて増加するように制御し、前記
駆動モータ3の駆動圧力を、前記コントローラ7から出
力される前記駆動モータ3の減速信号に応とて増加する
ようにfi制御することを特徴とする油圧掘削機械にお
ける上部旋回体の制御装置により目的を達成するように
した。
(Means for Solving the Problems) The present invention has been made in order to solve the problems in the prior art, and the first aspect of the present invention is to provide a meter-in-poppet valve in the discharge pipe line of the hydraulic pump l. an inlet of an upper rotating body drive motor 3 is connected to the tank 5 through a meter-out poppet valve 4;
The pilot pipe line of the meter-in poppet valve f2 is connected from the first flow side of the meter-in poppet valve 2 to the lower 1ζ side by the orifice 6 and the controller 7 at a ratio fM of 0M9p.
The AE solenoid valve 8 is self-manufactured, and the pyroduct line of the meter-out poppet valve 4 is connected from the upstream side to the downstream side of the meter-out poppet valve 4 through an orifice 9 and the control rough. Controlled ratio 1f11 own control 8a
In the hydraulic pressure υ control circuit formed via the proportional solenoid valves 8 and 8a, the force control valves lO and 11 controlled by the controller 7 control the inlet pressure and outlet T of the drive motor 3 immediately vI, respectively. Claim (2) is based on the above-mentioned claim (1).
), the drive pressure of the upper revolving body drive motor 3 is pressed so as to be increased in accordance with the speed increase signal of the first drive unit 3 outputted from the controller 7;
The upper @ rotating body in a hydraulic excavation machine characterized in that the dynamic pressure of the drive motor 3 is increased by 1lilf in accordance with the deceleration signal of the motor 3 output from the controller 7:! /A control device, No. (3)
Item 1a in item m of diary number (], The inlet of the meter is connected to the tank 5 through the poppet valve 15, and the inlet of the meter is connected to the tank 5 via the poppet valve 15.
The second piping line is connected to the meter-in poppet valve 12.
from the downstream side of the meter-out poppet valve 15 to the downstream side of the meter-out poppet valve 15 via an orifice 13 and a proportional solenoid valve 14 controlled by the controller 7; Hydraulic pressure, t4, is formed on the downstream side via the orifice 16 and the proportional electromagnetic valve P14a controlled by the condorature lug.
In the control circuit, when the drive motor 3 is reversed, the pressure control valves 11 and 10, which are controlled by the controller 7 together with the proportional solenoid valves 14 and 14a, control the inlet pressure and the outlet direction of the drive motor 3, respectively. Claim (4) provides the above-mentioned (3)
), the driving pressure of the upper rotating body driving motor 3 is controlled to increase in accordance with a speed increase signal of the driving motor 3 output from the controller 7, and the driving pressure of the driving motor 3 is controlled to increase. The object is achieved by a control device for an upper revolving body in a hydraulic excavation machine, which controls fi to increase in response to a deceleration signal of the drive motor 3 output from the controller 7.

(1ヤ用) @記購戊によるとき1′!コントローラ7がらの信号に
より上部旋回体駆動モータ3を右旋回あるいは左旋回さ
せる場合において加速あるいは減速させると、前記駆動
モータ3の駆動管路の駆動圧あるいはtill#jl圧
が上昇するが、その値は圧力1liIlr;n弁によっ
て所定値に制御されるので、前記駆動モーフ3の駆動管
路の駆動圧あるいは制動圧が急上昇することを防止でき
、スムーズな上部旋回体駆動モータ3の制御が可能とな
る。また上部旋回体の駆動圧力あるいは制動圧力を加速
あるいは滅遠景に応じて1118するようにしたのでオ
ペレータが多口に操イヤする上部旋回体の操作量が一様
になるため従来のような操作に多くの熟練変を必要とし
なくとら旋回体の111911が可能となる。
(For 1 Ya) When @Kipurchase is 1'! When the upper revolving body drive motor 3 is turned clockwise or counterclockwise by a signal from the controller 7, when it is accelerated or decelerated, the drive pressure or till#jl pressure of the drive pipe of the drive motor 3 increases. Since the value is controlled to a predetermined value by the pressure 1liIlr;n valve, it is possible to prevent the driving pressure or braking pressure of the drive pipe of the drive morph 3 from rising rapidly, and smooth control of the upper rotating body drive motor 3 is possible. becomes. In addition, since the driving pressure or braking pressure of the upper revolving body is changed to 1118 depending on the acceleration or the distant view, the amount of operation of the upper revolving body, which the operator has to use many times, becomes uniform, making it easier to operate as before. 111911 of the spiral revolving body is possible without requiring much skill change.

(実11 以下、本発明の実施例について添付図面を参照して詳述
する。第1図は本発明の油圧掘削機械におけるに部旋回
体のMf19装置の実施例を示す図で。
(Example 11) Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Fig. 1 is a diagram showing an embodiment of the Mf19 device of the rotating body of the hydraulic excavation machine of the present invention.

前記毫3図に示した従来の技術と共通する購戊要票につ
いては同じ符号をつけ、その説明を省略する。第1図に
おいてメータアウトボベ・ソ自弁4のパイロット管路に
設けたオリフィス9とメータインポペット弁2の比54
電磁fP8 X1間に圧力制御弁11の高圧ポートをt
I&tL、前記圧力制御弁11の低圧ボートをタンク5
への戻り管路に接続し、また、メータアウトポペット弁
15のパイロット管路に設けたオリフィス16とメータ
インポペットfP12の比fI41!l弁14alff
lに圧力制御弁lOの高圧ポートを接続し、前記圧力@
郵弁lOの低圧ボートをタンク5への庚り管路に接続す
るように構成されている。次にPp用について説明する
The same reference numerals are given to the purchasing information sheets that are common to the conventional technique shown in FIG. 3, and the explanation thereof will be omitted. In FIG. 1, the ratio 54 between the orifice 9 provided in the pilot pipe of the meter-out self-valve 4 and the meter-in poppet valve 2
Connect the high pressure port of the pressure control valve 11 between the electromagnetic fP8 and X1.
I&tL, the low pressure boat of the pressure control valve 11 is connected to the tank 5.
The ratio fI41 of the orifice 16 connected to the return line to the meter-out poppet valve 15 and provided in the pilot line of the meter-in poppet valve 15 to the meter-in poppet fP12! l valve 14alff
Connect the high pressure port of the pressure control valve lO to
It is configured to connect the low pressure boat of the post valve IO to the conduit line to the tank 5. Next, the case for Pp will be explained.

まず、上部旋回体駆動モータ3の右旋回時において加速
する場合には前記駆動モータ3における所望の旋回速度
に相当する加速信号をコントローラ7よりメータインポ
ベ・1ト弁2の比Mt磁自弁用ソレノイドAに出力する
と共に、@2図に示されるようなボベ1ト弁の開度信号
に応じた設定圧となる信号を圧力M8弁10に出力する
。このとき上部旋回体の慣性により前記駆動モータ3の
駆動油圧が上昇するがその油圧は前記第2図に示さバる
ような関係となりメータインポペット弁2の開度に応じ
て増加するように設定されているため前記駆動モータ3
の駆動油圧の急激な上部、を防止することができる。ま
た、前記駆動モータ3を減速する場合には前記駆動モー
タ3における所望の旋回速度に相当する減速信号をコン
トローラ7よりメータアウトポベ・ソ自弁9の比例を自
弁8a用ソレノイドAに出力すると共に、第2図に示さ
れるようなポペット弁のrpr*tδ号に応じた設定圧
となる信号を圧力制御弁11のソレノイドに出力する。
First, when the upper rotating body drive motor 3 accelerates when turning right, an acceleration signal corresponding to the desired turning speed of the drive motor 3 is sent from the controller 7 to the ratio Mt self-valve solenoid of the meter import valve 2. At the same time, it outputs to the pressure M8 valve 10 a signal that corresponds to the set pressure according to the opening degree signal of the Bovet valve as shown in Figure @2. At this time, the drive oil pressure of the drive motor 3 increases due to the inertia of the upper revolving structure, and the oil pressure is set to increase according to the opening degree of the meter-in poppet valve 2, as shown in FIG. 2. Because the drive motor 3
A sudden rise in the driving hydraulic pressure, can be prevented. In addition, when decelerating the drive motor 3, a deceleration signal corresponding to the desired rotation speed of the drive motor 3 is outputted from the controller 7 to the proportion of the meter-out valve self-valve 9 to the solenoid A for the self-valve 8a. A signal corresponding to the set pressure corresponding to rpr*tδ of the poppet valve as shown in FIG. 2 is output to the solenoid of the pressure control valve 11.

このとき、上部旋回体の慣性により前記駆動モータ3の
制動油圧が上昇するがその油圧はjR記第2図に示され
るような関係となりメータインポペット弁の開度に応し
て減少するように設定されているため、前記駆動モータ
3の制動油圧の急激な上部を防止することができると共
にオペレータが多口に操作する上部旋回体の操作量が一
様になり操fヤし易くなる。また駆動モータ3の左旋回
時における加速あるいは減速の場合についても前記右旋
回時における加速あるいは減速の1自と同様メータイン
ポペット弁12.メータアウトポベ、1ト弁■5、比例
電磁弁14及び14a用ンレノイドB、前記圧力制御弁
10.11のソレノイドにコントローラ7より所定の信
号を出力することにより前記駆動モータ3の駆動油圧あ
るいは制動油圧の急激な上昇を防止することができると
共にオペレータが多口に操(ヤする上部旋回体の操作量
が一様になり操作し易くなる。
At this time, the braking oil pressure of the drive motor 3 increases due to the inertia of the upper revolving structure, but the oil pressure has a relationship as shown in Figure 2 of JR, and decreases in accordance with the opening degree of the meter-in poppet valve. Because of this setting, it is possible to prevent the braking oil pressure of the drive motor 3 from rising suddenly, and the amount of operation of the upper revolving body, which is operated by the operator in many ways, becomes uniform, making it easier to operate. Also, in the case of acceleration or deceleration when the drive motor 3 turns to the left, the meter-in-poppet valve 12. The drive oil pressure or braking of the drive motor 3 is controlled by outputting a predetermined signal from the controller 7 to the meter-out valve, the 1-to-valve 5, the proportional solenoid valves 14 and 14a, and the solenoid of the pressure control valve 10.11. It is possible to prevent a sudden increase in oil pressure, and the amount of operation of the upper revolving body, which is operated by the operator in multiple steps, becomes uniform, making it easier to operate.

(発明の効果) 以上詳述した如く、本発明によるときは次の作用効果を
奏する。
(Effects of the Invention) As detailed above, the present invention provides the following effects.

(1)上部旋回体の駆動圧力あるいは制動圧力を加速あ
るいは減速量に応じてiiI!御するようにしたので急
激な圧力上昇を防止することができ油圧掘削機における
ショックが低減される。
(1) Adjust the driving pressure or braking pressure of the upper revolving structure according to the amount of acceleration or deceleration iii! Since the hydraulic excavator is controlled, a sudden pressure increase can be prevented and the shock in the hydraulic excavator can be reduced.

(2)上部旋回体の駆動圧力あるいは制動圧力を加速あ
るいは減速量に応じて#A99するようにしたのでオペ
レータが多口に操作する上gl!旋回体の操(1量が一
様になるため従来のような操作に多くの熟練實を必要と
しない。
(2) Since the driving pressure or braking pressure of the upper revolving structure is adjusted according to the amount of acceleration or deceleration, the operator can perform multiple operations. The operation of the revolving body (because the amount is uniform, it does not require much skill to operate it like in the past.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図C」本発明の実&i例を示す図、i2図は事]図
におけるポペット弁の開度と駆動圧あるいは訓勧圧との
関係を示す図、1s3図は従来の技術を示す図である。 l・・・・・油圧ポンプ 2.12・  ・メータインポペット弁3・・・・・上
部旋回体駆動モータ 4.15・・・メータアウトポペット弁5−・・・・タ
ンク 6.9.13.16・・・オリフィス 710#伊コントローラ 8.8:1.+4.14a・・・比例電磁弁io、ti
・・・圧力#II*弁 17・・・を気レバー 18.19・・・最高油圧規定弁
Figure 1C is a diagram showing an example of the present invention; It is. l...Hydraulic pump 2.12...Meter-in poppet valve 3...Upper rotating body drive motor 4.15...Meter-out poppet valve 5-...Tank 6.9.13 .16... Orifice 710#Italy Controller 8.8:1. +4.14a...proportional solenoid valve io, ti
...Pressure #II*Valve 17... is the air lever 18.19... Maximum oil pressure regulation valve

Claims (4)

【特許請求の範囲】[Claims] (1)コントローラ7により制御される比例電磁弁8に
よって弁開度を制御されるメータインポペット弁2を介
して、油圧ポンプ1の吐出管路と上部旋回体駆動モータ
3の入口を接続し、前記コントローラ7により制御され
る比例電磁弁8aによって弁開度を制御されるメータア
ウトポペット弁4を介して、前記駆動モータ3の出口と
タンク5を接続した油圧制御回路において、前記比例電
磁弁8及び8aと共に前記コントローラ7により制御さ
れる圧力制御弁10及び11により、それぞれ前記駆動
モータ3の入口圧力及び出口圧力を制御するようにした
ことを特徴とする油圧掘削機械における上部旋回体の制
御装置。
(1) Connecting the discharge pipe of the hydraulic pump 1 and the inlet of the upper rotating body drive motor 3 via the meter-in poppet valve 2 whose opening degree is controlled by the proportional solenoid valve 8 controlled by the controller 7; In a hydraulic control circuit that connects the outlet of the drive motor 3 and the tank 5 via a meter-out poppet valve 4 whose opening degree is controlled by a proportional solenoid valve 8a controlled by the controller 7, the proportional solenoid valve 8a is controlled by the controller 7. and 8a as well as pressure control valves 10 and 11 controlled by the controller 7 to respectively control the inlet pressure and outlet pressure of the drive motor 3. .
(2)前記第(1)の請求項において前記上部旋回体駆
動モータ3の駆動圧力を、前記コントローラ7から出力
される前記駆動モータ3の増速信号に応じて増加するよ
うに圧力制御弁10を使って制御し、前記駆動モータ3
の制動圧力を、前記コントローラ7から出力される前記
モータ3の減速信号に応じて増加するように圧力制御弁
11を使って制御することを特徴とする油圧掘削機械に
おける上部旋回体の制御装置。
(2) In claim (1), the pressure control valve 10 is configured to increase the driving pressure of the upper rotating body driving motor 3 in accordance with a speed increase signal of the driving motor 3 output from the controller 7. The drive motor 3 is controlled using
A control device for an upper revolving structure in a hydraulic excavation machine, characterized in that the braking pressure of the motor 3 is increased in response to a deceleration signal of the motor 3 output from the controller 7 using a pressure control valve 11.
(3)前記第(1)の請求項において油圧ポンプ1の吐
出管路にメータインポペット弁12を介して上部旋回体
駆動モータ3の出口を接続し、該駆動モータ3の入口を
メータアウトポペット弁15を介してタンク5に接続し
、前記メータインポペット弁12のパイロット管路を前
記メータインポペット弁12の上流側から下流側に、オ
リフィス13及びコントローラ7により制御される比例
電磁弁14を介して形成し、また、前記メータアウトポ
ペット弁15のパイロット管路を前記メータアウトポペ
ット弁15の上流側から下流側にオリフィス16及び前
記コントローラ7により制御される比例電磁弁14aを
介して形成した油圧制御回路において、前記駆動モータ
3の逆転時には前記比例電磁弁14及び14aと共に前
記コントローラ7により制御される圧力制御弁11及び
10により、それぞれ前記駆動モータ3の入口圧力及び
出口圧力を制御するようにしたことを特徴とする油圧掘
削機械における上部旋回体の制御装置。
(3) In claim (1), the outlet of the upper rotating body drive motor 3 is connected to the discharge pipe of the hydraulic pump 1 via the meter-in poppet valve 12, and the inlet of the drive motor 3 is connected to the meter-out poppet. A proportional solenoid valve 14 connected to the tank 5 via a valve 15 and controlled by an orifice 13 and a controller 7 is connected to the pilot pipe of the meter-in poppet valve 12 from the upstream side to the downstream side of the meter-in poppet valve 12. A pilot conduit for the meter-out poppet valve 15 is formed from the upstream side to the downstream side of the meter-out poppet valve 15 through an orifice 16 and a proportional solenoid valve 14a controlled by the controller 7. In the hydraulic control circuit, when the drive motor 3 is reversed, the pressure control valves 11 and 10 controlled by the controller 7 together with the proportional solenoid valves 14 and 14a control the inlet pressure and outlet pressure of the drive motor 3, respectively. A control device for an upper revolving body in a hydraulic excavation machine, characterized in that:
(4)前記第(3)の請求項において前記上部旋回体駆
動モータ3の駆動圧力を、前記コントローラ7から出力
される前記駆動モータ3の増速信号に応じて増加するよ
うに圧力制御弁11を使って制御し、前記駆動モータ3
の制動圧力を、前記コントローラ7から出力される前記
駆動モータ3の減速信号に応じて増加するように圧力制
御弁10を使って制御することを特徴とする油圧掘削機
械における上部旋回体の制御装置。
(4) In the third aspect, the pressure control valve 11 is configured to increase the driving pressure of the upper rotating body driving motor 3 in accordance with a speed increase signal of the driving motor 3 output from the controller 7. The drive motor 3 is controlled using
A control device for an upper revolving body in a hydraulic excavation machine, characterized in that the braking pressure of the upper revolving body in a hydraulic excavation machine is controlled using a pressure control valve 10 so as to increase the braking pressure of the drive motor 3 in accordance with a deceleration signal of the drive motor 3 outputted from the controller 7. .
JP4698489A 1989-02-28 1989-02-28 Controller of upper part swiveling body in hydraulic excavator Pending JPH02225730A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP4698489A JPH02225730A (en) 1989-02-28 1989-02-28 Controller of upper part swiveling body in hydraulic excavator
EP19900903220 EP0461258A4 (en) 1989-02-28 1990-02-16 Control unit for upper swivel body of hydraulic excavator
PCT/JP1990/000184 WO1990010117A1 (en) 1989-02-28 1990-02-16 Control unit for upper swivel body of hydraulic excavator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4698489A JPH02225730A (en) 1989-02-28 1989-02-28 Controller of upper part swiveling body in hydraulic excavator

Publications (1)

Publication Number Publication Date
JPH02225730A true JPH02225730A (en) 1990-09-07

Family

ID=12762482

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4698489A Pending JPH02225730A (en) 1989-02-28 1989-02-28 Controller of upper part swiveling body in hydraulic excavator

Country Status (3)

Country Link
EP (1) EP0461258A4 (en)
JP (1) JPH02225730A (en)
WO (1) WO1990010117A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960023541A (en) * 1994-12-08 1996-07-20 안자키 사토루 Reverse Actuator of Hydraulic Actuator
US6052636A (en) * 1997-08-04 2000-04-18 Caterpillar Inc. Apparatus and method for positioning an excavator housing
EP0942103B1 (en) * 1998-03-11 2003-10-01 Poclain Hydraulics Industrie Valve device for an hydraulic motor driving a large inertial mass

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62129425A (en) * 1985-11-29 1987-06-11 Komatsu Ltd Hydraulic circuit for constructing machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59126829A (en) * 1983-01-10 1984-07-21 Hitachi Constr Mach Co Ltd Oil pressure controller for oil-pressure shovel
JPH0431326Y2 (en) * 1986-04-30 1992-07-28

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62129425A (en) * 1985-11-29 1987-06-11 Komatsu Ltd Hydraulic circuit for constructing machine

Also Published As

Publication number Publication date
EP0461258A4 (en) 1993-03-31
EP0461258A1 (en) 1991-12-18
WO1990010117A1 (en) 1990-09-07

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