CN110753489A - 用于液压升降器的控制阀 - Google Patents

用于液压升降器的控制阀 Download PDF

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CN110753489A
CN110753489A CN201880039172.6A CN201880039172A CN110753489A CN 110753489 A CN110753489 A CN 110753489A CN 201880039172 A CN201880039172 A CN 201880039172A CN 110753489 A CN110753489 A CN 110753489A
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valve
line
fluid
control valve
cylinder
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沙美岛·纳克
奥尔凯·特尔坎
阿兹古尔·萨瓦奇
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He Ma Co Of Turkey
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    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B63/00—Lifting or adjusting devices or arrangements for agricultural machines or implements
    • A01B63/02—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors
    • A01B63/10—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/021—Valves for interconnecting the fluid chambers of an actuator
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/027—Check valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30505—Non-return valves, i.e. check valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
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    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
    • F15B2211/3057—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve having two valves, one for each port of a double-acting 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/35—Directional control combined with flow control
    • F15B2211/351—Flow control by regulating means in feed line, i.e. meter-in control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
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    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/35—Directional control combined with flow control
    • F15B2211/353—Flow control by regulating means in return line, i.e. meter-out control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
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    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41527—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member and a directional control valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41581—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member and a return line
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/42—Flow control characterised by the type of actuation
    • F15B2211/428—Flow control characterised by the type of actuation actuated by fluid pressure
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50536—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using unloading valves controlling the supply pressure by diverting fluid to the return line
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
    • F15B2211/5157—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source and a return line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
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    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7052—Single-acting output members
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    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
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    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/75—Control of speed of the output member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
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    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/76—Control of force or torque of the output member
    • F15B2211/761—Control of a negative load, i.e. of a load generating hydraulic energy

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Environmental Sciences (AREA)
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Abstract

本发明涉及一种牵引机用液压升降器的控制阀，其具有阀体(10)、至少一个将流体输送到阀体(10)中的主入口管路(11)和用于控制流体从主入口管路(11)流向油缸管路(14)的通道的止回阀(23)。

Description

用于液压升降器的控制阀
技术领域
本发明涉及一种用于牵引机控制液压升降器的控制阀。
背景技术
在牵引机中，通常在牵引机的后部设置有液压升降器，并且有控制阀来控制液压升降器的升降功能。
在控制阀的操作过程中，升降运动的开始和在空档位置(neutral position)的保持非常重要。为了精确地实现这一点，在目前的系统中，如在申请US6105613中所示，应用了具有引导警报的复杂系统。
因此，由于上述问题的存在，需要对相关技术领域进行改进。
发明内容
本发明涉及一种控制阀，用于消除上述缺点，为相关技术领域带来新的优点。
本发明的一个目的是提供一种更易于控制并且零部件数量减少的控制阀。
为了实现上述所有目标本发明提供一种控制阀，其应用于牵引机上使用的液压升降器，包括一个阀体，至少一条将流体输送到阀体中的主入口管路，和一止回阀，用于控制从主入口管路到油缸管路的流体通道。相应地，本发明的控制阀包括至少一个排出阀，其将来自主入口管路的流体输送到储槽管路；以及至少一个下降阀，其根据阀体中设置的主滑动件的位置，将存在于油缸管路中的流体输送到储槽管路。
在本发明的优选实施例中，设置了至少一个流量控制阀，当主入口管路中的流体压力超过预定值时，该流量控制阀将流体输送到储槽管路。
在本发明的优选实施例中，设置了至少一个冲击阀，当油缸管路中的流体压力超过预定值时，该冲击阀将流体输送到储槽管路。
在本发明的优选实施例中，在油缸管路和下降阀之间设置有至少一个节流阀。
附图说明
图1示出了位于空档位置的控制阀的代表性示意图。
图2示出了位于提升位置的控制阀的代表性示意图。
图3示出了位于下降位置的控制阀的代表性示意图。
具体实施方式
以下参考示例来解释本发明的控制阀，示例仅为了更容易理解本发明的主题，并不对本发明形成任何限制。
控制阀包括阀体(10)。在阀体(10)内设置至少一个主滑块(20)。主滑块(20)连接到下降阀(25)。至少有一条主入口管路(11)以向阀体(10)内部提供流体入口。流体不断地从主入口管路(11)输送到控制阀中。主入口管路(11)在阀体(10)中被分为第一管路(111)和第二管路(112)，第一管路(111)导向至油缸管路(14)，第二管路(112)导向至排出阀(21)。流体通道在第一管路(111)中主要通过主滑块(20)控制，，然后通过止回阀(23)控制，流体通道从第一管路(111)延伸至油缸管路(14)。流体在第二管路(112)处途径的排出阀(21)为流体提供前进的动力或使流体通过储槽管路(12)。第二管路(112)在排出阀(21)的延长部分被主滑块(20)中断，流体通道是可控的。第二管路(112)在主滑块之后被分成两条管路。当流体从第一管路(111)流经流量控制阀(26)的后侧时，其从一侧到达流量控制阀(26)的前部。流体流经流量控制阀(26)，被排放至储槽管路(12)中，流量控制阀(26)由形成的压力差而打开。
在第一管路(111)和油缸管路(14)之间设置有至少一个止回阀(23)。至少有一个节流锁紧阀(24)连接到止回阀(23)。节流锁紧阀(24)和下降阀(25)之间设有下降管路(13)。
如图1所示，在控制阀的空档位置，来自主入口管路(11)的流体通过第一管路(111)进入流量控制阀(21)的后部，并进入止回阀(23)。另一方面，流体延伸至流量控制阀(26)的前部；然而，通过主滑块(20)阻止流体向排出阀(21)的后部前进。因此，排出阀(21)保持打开第二管路(112)的前部的方式。由此，来自主入口管路(11)的流体通过第二管路(112)进入罐管路(12)，这是最简单的路线。同时，这可以防止第一管路(111)上的压力增加，并且流体不能通过止回阀(23)。同时，存在于油缸管路(14)中的流体由于止回阀(23)不能流向第一管路(111，并且流体被限制在节流锁紧阀(24)和下降阀(25)之间的下降管路(13)内。因此，连接到油缸管路(14)的油缸的位置保持不变。
当主滑块(20)被置于提升位置时，本发明的控制阀到达图2所示的位置。更详细地说，当第二管路(112)上的主滑块打开该管路时，流经第一管路(111)的流体填充到排出阀(21)的后侧。由此，排出阀(21)通过后部设置的弹簧弹力关闭从第二管路(112)通向储槽管路(12)的流体通道。因为存在于第一管路(111)中的流体不能到达储槽管路(12)，压力大幅度增加并推动止回阀(23)并到达油缸管路(14)。通过这种方式，连接到油缸管路(14)的油缸产生提升运动。当由于油缸管路(14)中的负载提升而形成过大压力时，流体通过连接到油缸管路(14)的冲击阀(22)到达储槽管路(12)，系统压力降低。此外，当提升过程中接近要停止提升的位置时，流体需要减速以防止硬停止。为了实现这一点，启动流量控制阀(26)，它将来自主入口管路(11)的部分液体输送到储槽管路(12)，并减少输送到油缸管路(14)的液体量。
当主滑块(20)到达下降位置时，本发明的控制阀到达图3所示的位置。流体通过主入口管路(11)进入，并以与空档位置相同的方式移动，并流至储槽管路(12)。另一方面，主滑块(20)以通过来自下降管路(13)的流体的方式来移动下降阀(25)。通过这种方式，存在于油缸管路(14)中的流体通过节流锁紧阀(24)并通过下降阀(25)，到达储槽管路(12)。因此，存在于油缸和油缸管路(14)中的流体前进到储槽管路(12)。通过这种方式，从而实现了下降运动。
当升降运动完成时，主滑块(20)被置于空档位置。由此，来自主入口管路(11)的流体被输送到储槽管路(12)，并且防止流体被进一步输送到油缸管路(14)。此外，由于止回阀(23)和下降阀(25)阻止流体通过，防止了油缸管路(14)中流体量的减少，因此，与油缸相连的升降器的位置保持固定。
由于在控制阀中设置的流量控制阀(26)，在提升过程中，当存在于控制阀前、后部的流体压力的差值超过期望值时，流量控制阀(26)将流体传输至储槽管路(12)。当流体流至储槽管路(12)时，压差减小，流量控制阀(26)再次到达阻止流体通过的位置。
节流锁紧阀(24)通过减小和增加油在下降过程中通过的面积来提供降低速度的调节，当它被锁紧到端部时，即使在下降阀(25)进入下降模式时，存在于油缸中的油仍留在油缸中，并且所述节流锁紧阀(24)提供了尚未实现的下降过程。
本发明的保护范围不限于上述说明性公开。相关技术领域的技术人员在不偏离本发明的主要原理的情况下，可以根据上述公开明显地获得相似的实施例。
附图标记
10 阀体
11 主入口管路
111 第一管路
112 第一管路
12 储槽管路
13 下降管路
14 油缸管路
20 主滑块
21 排出阀
22 冲击阀
23 止回阀
24 节流锁紧阀
25 下降阀
26 流量控制阀

Claims (4)

1.一种牵引机用液压升降器的控制阀，具有阀体(10)、至少一个主入口管路(11)和止回阀(23)，所述主入口管路(11)将流体输送到所述阀体(10)中，所述止回阀(23)用于控制来自所述主入口管路(11)的流体流至油缸管路(14)；其特征在于，所述控制阀包括至少一个排出阀(21)和至少一个下降阀(25)，所述排出阀(21)将来自所述主入口管路(11)的流体输送至储槽管路(12)；所述下降阀(25)根据所述阀体(10)中设置的主滑块(20)的位置将存在于所述油缸管路(14)中的流体输送至所述储槽管路(12)。
2.根据权利要求1所述的控制阀，其中，设置有至少一个流量控制阀(26)，当作为所述主入口管路(11)的支路的第一管路(111)和第二管路(112)之间的流体压力差超过预定值时，所述流量控制阀(26)将流体输送至所述储槽管路(12)。
3.根据权利要求1所述的控制阀，其中，设置有至少一个冲击阀(22)，当所述油缸管路(14)中的流体压力超过预定值时，所述冲击阀(22)将流体输送至所述储槽管路(12)。
4.根据权利要求1所述的控制阀，其中，在所述油缸管路(14)和所述下降阀(25)之间设置有至少一个节流阀(24)。
CN201880039172.6A 2017-06-15 2018-03-26 用于液压升降器的控制阀 Pending CN110753489A (zh)

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TR2017/08846 2017-06-15
TR2017/08846A TR201708846A2 (tr) 2017-06-15 2017-06-15 Hi̇droli̇k kaldiricilar i̇çi̇n bi̇r kontrol valfi̇
PCT/TR2018/050117 WO2019027393A2 (en) 2017-06-15 2018-03-26 CONTROL VALVE FOR HYDRAULIC LIFTING DEVICES

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5690105A (en) * 1979-12-24 1981-07-22 Kayaba Ind Co Ltd Controlling valve for farm working machinery of agricultural tractor
US5081837A (en) * 1988-04-08 1992-01-21 Diesel Kiki Co., Ltd. Hydraulic control circuit
US6105613A (en) * 1997-05-13 2000-08-22 Mita Oleodinamica S.P.A. Distributor for a hydraulic hoist which is controllable with regard to position and applied force, for tractors and agricultural machines
CN101351650A (zh) * 2006-03-27 2009-01-21 株式会社丰田自动织机 液压控制装置
CN202203201U (zh) * 2011-08-26 2012-04-25 山东弘宇机械有限公司 液压分配器
CN103038517A (zh) * 2009-07-02 2013-04-10 罗伯特·博世有限公司 阀装置
CN104428543A (zh) * 2012-07-19 2015-03-18 沃尔沃建造设备有限公司 用于施工机械的流量控制阀
US20150267718A1 (en) * 2012-10-19 2015-09-24 Hema Endustri Anonim Sirketi System preventing pressured oil leakage to cylinder line in control valve systems with flow divider
CN106015146A (zh) * 2016-07-18 2016-10-12 山东弘宇农机股份有限公司 一种内置液压分配器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5422068A (en) * 1977-07-19 1979-02-19 Kawasaki Heavy Ind Ltd Control valve for machine
JPS58149401A (ja) * 1982-02-26 1983-09-05 Kayaba Ind Co Ltd 農用トラクタの作業機コントロ−ル弁
JPS62188803A (ja) * 1986-02-10 1987-08-18 Kawasaki Heavy Ind Ltd 作業機用コントロ−ル弁
DE3739736A1 (de) * 1987-11-24 1989-06-08 Bosch Gmbh Robert Steuergeraet fuer einen hydraulischen arbeitskreis
JP2007139148A (ja) * 2005-11-22 2007-06-07 Kubota Corp 作業機の油圧装置

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5690105A (en) * 1979-12-24 1981-07-22 Kayaba Ind Co Ltd Controlling valve for farm working machinery of agricultural tractor
US5081837A (en) * 1988-04-08 1992-01-21 Diesel Kiki Co., Ltd. Hydraulic control circuit
US6105613A (en) * 1997-05-13 2000-08-22 Mita Oleodinamica S.P.A. Distributor for a hydraulic hoist which is controllable with regard to position and applied force, for tractors and agricultural machines
CN101351650A (zh) * 2006-03-27 2009-01-21 株式会社丰田自动织机 液压控制装置
CN103038517A (zh) * 2009-07-02 2013-04-10 罗伯特·博世有限公司 阀装置
CN202203201U (zh) * 2011-08-26 2012-04-25 山东弘宇机械有限公司 液压分配器
CN104428543A (zh) * 2012-07-19 2015-03-18 沃尔沃建造设备有限公司 用于施工机械的流量控制阀
US20150267718A1 (en) * 2012-10-19 2015-09-24 Hema Endustri Anonim Sirketi System preventing pressured oil leakage to cylinder line in control valve systems with flow divider
CN106015146A (zh) * 2016-07-18 2016-10-12 山东弘宇农机股份有限公司 一种内置液压分配器

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US20200141429A1 (en) 2020-05-07
EP3638935A2 (en) 2020-04-22
TR201708846A2 (tr) 2017-09-21

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