WO2016121185A1 - Dispositif de commande de rotation - Google Patents

Dispositif de commande de rotation Download PDF

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Publication number
WO2016121185A1
WO2016121185A1 PCT/JP2015/080797 JP2015080797W WO2016121185A1 WO 2016121185 A1 WO2016121185 A1 WO 2016121185A1 JP 2015080797 W JP2015080797 W JP 2015080797W WO 2016121185 A1 WO2016121185 A1 WO 2016121185A1
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WO
WIPO (PCT)
Prior art keywords
meter
control
turning
hydraulic
hydraulic motor
Prior art date
Application number
PCT/JP2015/080797
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English (en)
Japanese (ja)
Inventor
尚隆 増田
貴史 川野
直人 川淵
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株式会社タダノ
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Filing date
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Publication of WO2016121185A1 publication Critical patent/WO2016121185A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/84—Slewing gear
    • B66C23/86—Slewing gear hydraulically actuated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
    • 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

Definitions

  • the present invention relates to a turning control device, and more particularly, a turning having a simplified structure in which turning operation characteristics can be changed to those intended by an operator by independently controlling a meter-in flow rate and a meter-out opening area.
  • the present invention relates to a control device.
  • a conventional turning control device is provided in a working machine having a turning table such as a mobile crane.
  • the turning control device includes a hydraulic motor capable of turning the turntable, a hydraulic pump that supplies hydraulic oil to the hydraulic motor, and a control valve that controls a flow path of hydraulic oil flowing into and out of the hydraulic motor. Is known.
  • the control spool controlled by the operation amount input through the operation lever is used.
  • the opening area of each flow path such as meter-in and meter-out is uniquely determined with respect to the stroke position. For this reason, the turning operation characteristics are uniquely determined, and it is difficult to change the turning operation characteristics to those intended by the operator.
  • the problem to be solved by the present invention has a simplified structure in which the meter-in flow rate and the meter-out opening area can be controlled independently, and the turning operation characteristics can be changed to those intended by the operator.
  • a turning control device is provided.
  • a turning control device includes a hydraulic motor capable of turning a turntable in a work machine, and a variable displacement hydraulic pump that supplies hydraulic oil to the hydraulic motor.
  • a control valve having a flow path for hydraulic oil flowing into and out of the hydraulic motor, a meter-in control unit for controlling a flow rate of hydraulic oil flowing into the hydraulic motor by controlling a discharge amount of the hydraulic pump, A meter-out control unit that controls an opening area of the flow passage on the side that flows out of the hydraulic motor by controlling the valve opening of the control valve.
  • the turning control device further includes a detector that detects a working state of the working machine, wherein the meter-in control unit is detected by the number of rotations of a prime mover that drives the hydraulic pump and the detector. It is preferable to control the discharge amount of the variable displacement hydraulic pump according to the working state of the working machine.
  • the meter-in control unit controls the rotation direction of the hydraulic motor by the control of the control valve.
  • the turning control device includes an operation characteristic input unit capable of inputting an arbitrary operation characteristic, and the meter-in control unit and the meter-out control unit are based on the operation characteristic input in the operation characteristic input unit. It is preferable to drive.
  • the inflow amount of the hydraulic oil to the hydraulic motor is controlled by the control of the hydraulic pump of the meter-in control unit, and the opening area on the outflow side in the hydraulic oil flow passage is controlled by the control valve of the meter-out control unit.
  • the brake pressure generated on the hydraulic oil outflow side of the hydraulic motor is controlled. Accordingly, for example, it is not necessary to adopt a complicated structure such as a control system provided with a plurality of control valves, so that turning in which the meter-in and meter-out can be controlled independently and the structure of the control device can be simplified is possible.
  • a control device can be provided.
  • a turning control device capable of changing the turning operation characteristics to those intended by the operator by independently controlling meter-in and meter-out.
  • an existing variable displacement hydraulic pump can be used as the hydraulic pump, complicated equipment and control are not required for adjusting the discharge amount of hydraulic oil, resulting in further simplification.
  • a turning control device having a structure can be provided.
  • the flow rate control valve with pressure compensation and the bleed-off circuit are not required for meter-in control, and the control is simplified and stabilized. It is possible to provide a turning control device that can be easily controlled.
  • variable displacement hydraulic pump is driven according to the number of rotations of the prime mover for driving the hydraulic pump and the detection results from various detectors that detect the working state of the work machine.
  • the discharge amount can be controlled.
  • a mode in which an operation lever for inputting a driving amount of a desired swivel of the operator and an accelerator pedal for controlling the rotational speed of a prime mover for driving the hydraulic pump can be operated independently. There is. In such a working machine, even if the hydraulic pump capacity determined by the operation lever is constant, the amount of hydraulic oil discharged by the hydraulic pump changes due to the change in the number of revolutions of the prime mover by the operation of the accelerator pedal. To do.
  • the optimum rate of change of the hydraulic pump discharge amount with respect to the change in the rotational speed of the prime mover varies depending on the work state of the work machine, the operator's preference, and the like. If it is a desirable form of the present invention, the turning control device which can change the change rate of the discharge amount of the hydraulic oil of the hydraulic pump with respect to the change in the rotational speed of the prime mover according to the work state of the work machine, the operator's preference, etc. Can be provided.
  • a turning control device capable of determining the rotation direction and meter-in flow rate of the hydraulic motor only by the meter-in control unit without going through a complicated control process. If the rotational direction of the hydraulic motor is determined, the meter-in and meter-out flow paths are also determined. As a result, the flow path of hydraulic fluid, the rotational direction of the hydraulic motor, and the meter-in flow rate are determined only by the meter-in control unit. Can do.
  • meter-in control is performed by inputting, for example, various operation characteristic patterns previously stored in a storage unit or the like mounted on the work machine using the operation characteristic input unit. It is possible to provide a turning control device that can appropriately execute various combinations of the control forms of the unit and the meter-out control unit according to the working state of the work implement.
  • FIG. 1 is a side view of the mobile crane 1.
  • the mobile crane 1 includes a traveling vehicle 10 and a crane device 20.
  • a rough terrain crane is shown in FIG.
  • the vehicle to which the present invention is applied is not limited to a rough terrain crane, and for example, a work vehicle that can perform a turning operation at the time of work and is required to have a simplified structure in a device that controls the turning operation. It can be applied to a work vehicle.
  • Vehicle 10 has wheels 11 and travels using engine E shown in FIG. 2 as a power source.
  • engine E shown in FIG. 2
  • outriggers 12 for preventing the mobile crane 1 from overturning during crane work and for stably supporting the mobile crane 1.
  • the outrigger 12 can project outward in the vehicle width direction and can extend downward by a hydraulic jack cylinder.
  • the outrigger 12 stably supports the mobile crane 1 against the ground surface by grounding the lower end.
  • the crane device 20 includes a swivel base 21, a boom 22, and a cabin 23.
  • the swivel base 21 is a member provided at a substantially central portion in the front-rear direction of the vehicle 10 so as to be turnable on a horizontal plane.
  • the turntable 21 is provided so as to be turnable with respect to the upper portion of the vehicle 10.
  • the swivel base 21 is swung by the hydraulic motor 3 shown in FIG. The driving of the hydraulic motor 3 will be described later with reference to FIG.
  • the boom 22 is a member that can be raised and lowered with respect to the swivel base 21 and that can be expanded and contracted.
  • the boom 22 consists of a plurality of cylinders arranged in a nested manner, and expands and contracts by advancing and retracting the cylinders with a hydraulic extension cylinder.
  • the cylindrical body arranged on the outermost side of the boom 22 is pivotally connected to a bracket 24 erected on the upper part of the swivel base 21 at its base end.
  • a hydraulic hoisting cylinder 25 is connected between the lower surface portion of the outermost cylinder in the boom 22 and the bracket 24.
  • the boom 22 is raised and lowered by the extending and retracting operation of the raising and lowering cylinder 25.
  • a hook block 26 is suspended from the tip of the boom 22 by a wire rope.
  • a load can be locked to the hook block 26, and the hook block 26 and the load can be moved up and down by adjusting the winding length of the wire rope while the load is locked to the hook block 26.
  • the cabin 23 is a box-shaped member that is provided on the side of the bracket 24 at the top of the swivel base 21 and can swivel together with the swivel base 21.
  • An operator can get into the cabin 23, and the operation input unit 4 (see FIG. 2) including an operation lever, an operation button, a touch panel, and the like provided in the interior controls the operation of the vehicle 10 and the expansion and contraction of the boom 22. And operations related to undulations can be input.
  • FIG. 2 is a schematic configuration diagram showing an embodiment of the turning control device according to the present invention.
  • the turning control device 100 includes a hydraulic motor 3, an operation input unit 4, a hydraulic pump 5, a control valve 6, and a controller 7.
  • the hydraulic motor 3 is driven when hydraulic oil is supplied, and can turn the turntable 21. By switching the inflow direction and the outflow direction of the hydraulic oil with respect to the hydraulic motor 3, the rotation direction of the hydraulic motor 3 can be switched. When the rotation direction of the hydraulic motor 3 is switched, a turning operation in one direction of the turntable 21 and a turning operation in the opposite direction can be performed.
  • the operation input unit 4 is shown as an operation lever in FIG. In the present embodiment, an operation related to the turning operation can be input by tilting the operation input unit 4.
  • a push button, a pedal, a touch panel, or the like may be employed in addition to the operation lever.
  • the hydraulic pump 5 is a member that supplies hydraulic oil to the hydraulic motor 3.
  • the hydraulic pump 5 uses the engine E as a drive source, similarly to the drive source of the vehicle 10.
  • a PTO (power take-off) mechanism 8 for taking out the power of the engine E is connected to the hydraulic pump 5.
  • the hydraulic pump 5 is driven to discharge hydraulic oil.
  • Engine E is an example of a prime mover in the present invention.
  • the prime mover may be, for example, an electric motor instead of the engine E that burns fuel.
  • the hydraulic pump 5 in this embodiment is a variable displacement hydraulic pump. Therefore, the amount of hydraulic oil discharged from the hydraulic pump 5 can be adjusted in accordance with an electrical signal input from the controller 7 described later.
  • the control valve 6 is a member having a flow path for hydraulic oil flowing into and out of the hydraulic motor 3. Specifically, the control valve 6 incorporates a long spool having a groove-like meter-in channel and meter-out channel formed on the peripheral surface.
  • the control valve 6 has a proportional solenoid and can adjust the amount of movement of the spool and switch the direction of movement.
  • the spool is movable along the axial direction of the spool in accordance with an electric signal input to the proportional solenoid.
  • control valve 6 of the present embodiment as shown in FIG. 2, two sets of meter-in flow paths and meter-out flow paths are provided, and the flow direction of hydraulic oil can be switched by moving the spool. . Thereby, if the direction which a spool moves is switched, the distribution direction of hydraulic oil can be changed.
  • the opening area of the meter-out flow path changes according to the movement amount of the spool. Therefore, by controlling the amount of movement of the spool, that is, the opening area of the meter-out flow path, the brake pressure generated on the hydraulic oil discharge side of the hydraulic motor 3 due to the meter-out flow rate is controlled.
  • the meter-in flow path is formed so as to immediately enter the fully open state or the substantially fully open state when the spool moves in any direction from the neutral position. In other words, the opening area of the meter-in channel becomes maximum or substantially maximum when the spool moves from the neutral position. For this reason, in this embodiment, the control of the opening area of the meter-out flow path is the control of the valve opening degree of the control valve 6.
  • control valve 6 controls only the flow direction for the meter-in flow path, and controls the valve opening degree for obtaining the necessary opening area only for the meter-out flow path. For this reason, it is only necessary to provide one spool, and as the control valve 6, it is only necessary to make a slight design change to the control valve having a simple structure using one existing spool. Conventionally, a plurality of spools are used when various control modes of meter-in flow and meter-out flow are required.
  • the controller 7 is a member that can receive various electric signals from various sensors described later, can perform appropriate arithmetic processing, and can output drive signals to the hydraulic pump 5 and the control valve 6, respectively.
  • the controller 7 is composed of, for example, a CPU, a ROM, a RAM, and the like.
  • the controller 7 also serves as a meter-in control unit and a meter-out control unit in the present invention.
  • the function of the controller 7 as the meter-in control unit is to control the flow rate of the hydraulic oil flowing into the hydraulic motor 3 by controlling the discharge amount of the hydraulic pump 5, and the swivel base 21 input from the operation input unit 4.
  • a function of controlling the moving direction of the spool of the control valve 6 according to the turning direction can be given.
  • the function of the controller 7 as a meter-out control unit is to control the opening area of the meter-out flow path by controlling the valve opening of the control valve 6 and control the brake pressure generated on the hydraulic oil outflow side of the hydraulic motor 3. The function to do can be mentioned.
  • the controller 7 includes a signal related to an operation input in the operation input unit 4, a signal related to an operation characteristic input, a signal related to the state of the mobile crane 1, a signal related to the rotational speed of the prime mover, and the like. Entered. Specifically, as a member for inputting a signal to the controller 7, as shown in FIG. 2, the stroke sensor 71, the first load sensor 72, the second load sensor 73, the turning angle sensor 74, the undulation angle sensor 75, the rotation A number sensor 76, a lever position sensor 77, and an operation characteristic input unit 78 are provided.
  • the members that input signals to these controllers 7 are examples of detectors that detect the working state of the mobile crane 1.
  • the controller 7 outputs electric signals for driving, increasing / decreasing the flow rate of hydraulic oil, and stopping the hydraulic pump 5 and the control valve 6 based on various electric signals inputted.
  • the stroke sensor 71 is a sensor member that detects the extension / contraction length of the boom 22.
  • information related to the length of the boom 22 is obtained based on the electrical signal input by the stroke sensor 71.
  • the first load sensor 72 is a sensor member that detects a load acting on the tip of the boom 22.
  • information relating to the load including the mass of the load is obtained based on the electrical signal input by the first load sensor 72.
  • the second load sensor 73 is a sensor member that detects the mass of the counterweight mounted on the vehicle 10 or the crane device 20 or the like. In the controller 7, information related to the mass of the counterweight is obtained based on the electric signal input from the second load sensor 73.
  • the turning angle sensor 74 is a sensor member that detects the turning angle of the turntable 21.
  • the controller 7 based on the electrical signal input from the turning angle sensor 74, information related to the turning angle of the turntable 21 and information related to the turning speed by calculating the turning angle per unit time of the turntable 21. Is obtained.
  • the hoisting angle sensor 75 is a sensor member that detects the hoisting angle of the boom 22 when the hoisting cylinder 25 is driven. In the controller 7, information related to the working radius is obtained based on the electrical signals input by the stroke sensor 71 and the undulation angle sensor 75.
  • the rotation speed sensor 76 is a sensor member that detects the rotation speed of the engine E.
  • information related to the rotational speed of the engine E is obtained based on the electrical signal input by the rotational speed sensor 76.
  • the lever position sensor 77 is a sensor member that detects the degree to which the operation lever that is the operation input unit 4 is tilted, that is, the operation amount. In the controller 7, information related to the operation amount of the operation input unit 4 is obtained based on the electric signal input by the lever position sensor 77.
  • the operation characteristic input unit 78 is a member that is provided in the cabin 23 similarly to the operation input unit 4 and is used for input related to selection and adjustment of the operation characteristic by the operator.
  • the operation characteristic in the present embodiment is, for example, the relationship between the operation amount in the operation input unit 4 and the driving amounts of the vehicle 10 and the crane device 20.
  • By adjusting the operation characteristics for example, a characteristic capable of obtaining a large drive amount with a small operation amount, a characteristic capable of obtaining a small drive amount with a large operation amount, a characteristic in which the turning speed is more important than the turning accuracy of the turntable 21, and turning It is possible to switch characteristics that emphasize turning accuracy from the turning speed of the table 21.
  • the controller 7 based on the electrical signal input by the operation characteristic input unit 78, information related to the input operation characteristic desired by the worker is obtained.
  • the operation characteristics intended by the operator input via the operation characteristic input unit 78 and the like are controlled by appropriately combining a plurality of control valves, a plurality of spools, a flow rate control valve with pressure compensation, and the like. It was realized by.
  • the hydraulic pump escapes from the hydraulic pump to the hydraulic oil tank according to the circuit pressure. Since the bleed-off flow rate varies, the meter-in flow rate varies according to the variation of the turning load. In the case of a conventional circuit configuration having a bleed-off flow path, the meter-in flow rate also varies depending on the flow rate into the control valve, that is, the discharge amount of the hydraulic pump that varies depending on the engine speed.
  • a form in which a flow control valve with pressure compensation is used for meter-in control is known.
  • the operation input at the operation input unit is performed by correcting the bleed-off flow rate by the flow control valve with pressure compensation for each variation of the circuit pressure and the flow rate of the hydraulic oil flowing into the control valve.
  • a meter-in flow rate corresponding to the amount could be obtained.
  • the actuator provided in such a work machine has a swiveling speed that is sized according to the operation amount. It was not possible to control immediately. For example, when the turning speed is slower than the manipulated variable, that is, when the rotational speed of the hydraulic motor is lower than the meter-in flow rate specified by the input manipulated variable, the pressure on the hydraulic oil inflow side of the hydraulic motor increases, and as a result The turning motion is accelerated.
  • the opening area of the meter-in flow rate and the meter-out flow path can be controlled more reliably and independently than before, and the swivel has a simplified structure and can easily change the operation characteristics of the hydraulic motor 3. A control device was sought.
  • this embodiment employs a circuit configuration in which the meter-in flow rate depends only on the rotational speed of the engine E and the capacity of the hydraulic pump 5 without using a pressure control flow control valve.
  • the meter-in flow rate in the present embodiment does not or hardly varies due to factors other than control by the meter-in control unit of the controller 7, that is, fluctuations in the circuit pressure and the inflow flow rate to the control valve 6. Therefore, in the present embodiment, the operation and operation characteristics related to the turning operation input through the operation input unit 4 and the operation characteristic input unit 78 are more reliably and accurately executed in the hydraulic motor 3 than in the past.
  • the flow rate of the hydraulic oil flowing into the hydraulic motor 3 and the brake pressure generated on the outflow side are controlled independently by separate members. Specifically, the control of the flow rate of the hydraulic oil flowing into the hydraulic motor 3 is achieved by controlling the discharge amount of the hydraulic pump 5 in accordance with the rotational speed of the engine E and the working state of the mobile crane 1. Further, the control of the brake pressure generated in the flow path of the hydraulic oil flowing out from the hydraulic motor 3 is achieved by controlling the valve opening of the control valve 6.
  • the turning control device 100 does not need to control the flow rate of hydraulic oil by combining a plurality of control valves, a plurality of spools, a flow rate control valve, and the like as in the past. Further, since the turning control device 100 can control the meter-in flow rate and meter-out opening area of hydraulic oil using separate members that do not affect each other, that is, independent members, the structure and control system of the device are Not complicated or difficult.
  • the swing control device 100 controls each flow rate of the hydraulic oil flowing into and out of the hydraulic motor 3 by independent members such as the hydraulic pump 5 and the control valve 6, the swing control device 100 is operated by changing each control mode by the independent members. It is preferable because the characteristics can be easily changed and the range in which the operating characteristics can be changed is wider than in the past. Further, since meter-in control is performed by controlling the discharge amount of the hydraulic pump 5, the dependency of the discharge amount of the hydraulic pump 5 on the rotation speed of the engine E, that is, the dependency of the meter-in flow rate on the rotation speed of the engine E can be freely set. Can do.
  • the turning control device 100 has an optimum operation characteristic by changing each control mode of meter-in and meter-out according to the work state of the mobile crane 1 detected by signals from various sensors 71 to 75. Can be changed.
  • the work radius is calculated based on the extension / contraction length of the boom 22 detected by the stroke sensor 71 and the undulation angle of the boom 22 detected by the undulation angle sensor 75, and the calculated work radius, the load of the suspended load, etc.
  • the ratio of the meter-out opening area to the meter-in flow rate that is, the magnitude of the brake pressure, it is possible to change the turning operation characteristics that facilitate fine operations in situations where turning accuracy is required.
  • FIG. 3 is a schematic configuration diagram showing another embodiment of the turning control device according to the present invention.
  • the turning control device 101 includes two switching valves 91 and 92 and throttle valves 93 and 94.
  • the switching valves 91 and 92 have solenoids as switching means, and the flow paths are opened and closed in accordance with an electric signal input from the controller 7.
  • the switching valve 91 is a branch passage formed between the hydraulic pump 5 and the control valve 6 so that a part of the hydraulic oil discharged from the hydraulic pump 5 flows to the tank.
  • a throttle valve 93 is disposed downstream of the switching valve 91 in the branch flow path.
  • the switching valve 92 and the throttle valve 94 are branched flow paths formed so as to connect the meter-in flow path and the meter-out flow path between the control valve 6 and the hydraulic motor 3. Has been placed.
  • the flow rate of the hydraulic oil flowing through the switching valves 91 and 92 and the throttle valves 93 and 94 is set to be small depending on the opening degree of the throttle valves 93 and 94.
  • the switching valves 91 and 92 and the throttle valves 93 and 94 form a flow path for allowing a small amount of hydraulic oil to escape to the tank, thereby smoothing the turning operation when the turning operation of the swivel base 21 is started and stopped. Can do.
  • the amount of hydraulic oil that passes through the throttle valves 93 and 94 is an amount that hardly affects the drive of the hydraulic motor 3 determined by the control by the hydraulic pump 5 and the control valve 6. Control similar to that of the turning control device 100 is possible.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Jib Cranes (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

L'invention concerne un dispositif de commande de rotation ayant une structure simplifiée, le dispositif de commande de rotation étant capable de commander indépendamment un débit d'entrée de compteur et une aire d'ouverture de sortie de compteur et étant configuré de façon à pouvoir changer les caractéristiques de fonctionnement de rotation selon le souhait d'un ouvrier. Un dispositif de commande de rotation (100) comprend : un moteur hydraulique (3) capable de faire tourner la table rotative d'une grue mobile ; une pompe hydraulique à cylindrée variable (5) permettant de fournir de l'huile hydraulique au moteur hydraulique (3) ; une vanne de commande (6) comportant des passages d'écoulement pour huile hydraulique entrant et sortant du moteur hydraulique (3) ; et un dispositif de commande (7) permettant de réguler la quantité de refoulement hors de la pompe hydraulique (5) pour réguler le débit d'huile hydraulique qui s'écoule dans le moteur hydraulique (3), et commander le degré d'ouverture de la vanne de commande (6) pour commander l'aire d'ouverture du passage d'écoulement au travers duquel de l'huile hydraulique s'écoule hors du moteur hydraulique (3).
PCT/JP2015/080797 2015-01-29 2015-10-30 Dispositif de commande de rotation WO2016121185A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015015914A JP2016142279A (ja) 2015-01-29 2015-01-29 旋回制御装置
JP2015-015914 2015-01-29

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WO2016121185A1 true WO2016121185A1 (fr) 2016-08-04

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109469666A (zh) * 2018-10-17 2019-03-15 江苏谷登工程机械装备有限公司 一种水平定向钻机液压控制系统
WO2019064715A1 (fr) * 2017-09-29 2019-04-04 コベルコ建機株式会社 Système hydraulique
CN111485590A (zh) * 2020-05-28 2020-08-04 三一重机有限公司 液压控制系统、挖掘机及挖掘机控制方法

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JPH09208187A (ja) * 1996-02-02 1997-08-12 Komatsu Ltd クレーンの旋回用油圧回路
JPH09286592A (ja) * 1996-04-24 1997-11-04 Hitachi Constr Mach Co Ltd 作業機の旋回制御装置
JPH10159809A (ja) * 1996-11-28 1998-06-16 Kobe Steel Ltd 油圧アクチュエータの流量制御装置
JPH10212092A (ja) * 1997-01-29 1998-08-11 Kobe Steel Ltd 旋回式作業機械の旋回停止制御方法および同装置
US20140208728A1 (en) * 2013-01-28 2014-07-31 Caterpillar Inc. Method and Hydraulic Control System Having Swing Motor Energy Recovery

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09208187A (ja) * 1996-02-02 1997-08-12 Komatsu Ltd クレーンの旋回用油圧回路
JPH09286592A (ja) * 1996-04-24 1997-11-04 Hitachi Constr Mach Co Ltd 作業機の旋回制御装置
JPH10159809A (ja) * 1996-11-28 1998-06-16 Kobe Steel Ltd 油圧アクチュエータの流量制御装置
JPH10212092A (ja) * 1997-01-29 1998-08-11 Kobe Steel Ltd 旋回式作業機械の旋回停止制御方法および同装置
US20140208728A1 (en) * 2013-01-28 2014-07-31 Caterpillar Inc. Method and Hydraulic Control System Having Swing Motor Energy Recovery

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019064715A1 (fr) * 2017-09-29 2019-04-04 コベルコ建機株式会社 Système hydraulique
JP2019065572A (ja) * 2017-09-29 2019-04-25 コベルコ建機株式会社 油圧システム
US11131077B2 (en) 2017-09-29 2021-09-28 Kobelco Construction Machinery Co., Ltd. Hydraulic system
JP7069620B2 (ja) 2017-09-29 2022-05-18 コベルコ建機株式会社 油圧システム
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CN111485590A (zh) * 2020-05-28 2020-08-04 三一重机有限公司 液压控制系统、挖掘机及挖掘机控制方法

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