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CN113833701A - 一种旋转机具液压系统 - Google Patents

一种旋转机具液压系统 Download PDF

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Publication number
CN113833701A
CN113833701A CN202111041495.9A CN202111041495A CN113833701A CN 113833701 A CN113833701 A CN 113833701A CN 202111041495 A CN202111041495 A CN 202111041495A CN 113833701 A CN113833701 A CN 113833701A
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China
Prior art keywords
port
valve
oil
compensation
control valve
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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
CN202111041495.9A
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English (en)
Inventor
金月峰
张箭
董玉忠
张洋
孙本强
苗衡
卢杰
张新奎
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Xuzhou XCMG Excavator Machinery Co Ltd
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Xuzhou XCMG Excavator Machinery Co Ltd
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Application filed by Xuzhou XCMG Excavator Machinery Co Ltd filed Critical Xuzhou XCMG Excavator Machinery Co Ltd
Priority to CN202111041495.9A priority Critical patent/CN113833701A/zh
Publication of CN113833701A publication Critical patent/CN113833701A/zh
Priority to PCT/CN2022/107922 priority patent/WO2023035794A1/zh
Priority to EP22866268.0A priority patent/EP4368840A1/en
Priority to AU2022343587A priority patent/AU2022343587A1/en
Priority to US18/688,359 priority patent/US12247589B2/en
Pending legal-status Critical Current

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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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • 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
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/10—Supports for movable superstructures mounted on travelling or walking gears or on other superstructures
    • E02F9/12—Slewing or traversing gears
    • E02F9/121—Turntables, i.e. structure rotatable about 360°
    • E02F9/123—Drives or control devices specially adapted therefor
    • 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
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2225—Control of flow rate; Load sensing arrangements using pressure-compensating valves
    • 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
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/26—Supply reservoir or sump assemblies
    • 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
    • F15B11/042—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the feed line, i.e. "meter in"
    • 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
    • F15B11/05—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive
    • 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
    • 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
    • F15B2013/0412—Valve members; Fluid interconnections therefor with three positions
    • 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
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • F15B2211/3053—In combination with a pressure compensating valve
    • F15B2211/30535—In combination with a pressure compensating valve the pressure compensating valve is arranged between pressure source and directional control valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
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    • F15B2211/30—Directional control
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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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40507—Flow control characterised by the type of flow control means or valve with constant throttles or orifices
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    • 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
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
    • 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
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40553—Flow control characterised by the type of flow control means or valve with pressure compensating valves
    • F15B2211/40569—Flow control characterised by the type of flow control means or valve with pressure compensating valves the pressure compensating valve arranged downstream of the flow control 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/41—Flow control characterised by the positions of the valve element
    • F15B2211/413—Flow control characterised by the positions of the valve element the positions being continuously variable, e.g. as realised by proportional valves
    • 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
    • F15B2211/41509—Flow control characterised by the connections of the flow control means in the circuit being connected to a pressure source 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
    • F15B2211/41554—Flow control characterised by the connections of the flow control means in the circuit being connected to a return line 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
    • F15B2211/41563—Flow control characterised by the connections of the flow 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
    • 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
    • F15B2211/426—Flow control characterised by the type of actuation electrically or electronically
    • 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
    • F15B2211/455—Control of flow in the feed line, i.e. meter-in control
    • 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
    • F15B2211/50518—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief valves
    • 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
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    • 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
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
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    • F15B2211/50—Pressure control
    • F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
    • F15B2211/5159—Pressure control characterised by the connections of the pressure control means in the circuit being connected to an output member and a return line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • 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
    • F15B2211/70—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
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    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
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    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/75—Control of speed of the output member

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  • Engineering & Computer Science (AREA)
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  • Physics & Mathematics (AREA)
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  • Mechanical Engineering (AREA)
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  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Operation Control Of Excavators (AREA)
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Abstract

本发明公开了一种旋转机具液压系统,包括油箱、主泵、控制阀和旋转马达，油箱连接主泵的吸油口，主泵的出油口连接控制阀的P口，控制阀的T口连通油箱，控制阀的A口和控制阀的B口连接旋转马达两端。控制阀包括补偿阀、电比例阀和电磁换向阀，P口与电比例阀油口一相连，P口与补偿阀油口三相连，P口与补偿阀油口五相连，电比例阀油口二与补偿阀油口一相连，补偿阀出油口二与电磁换向阀油口三相连，补偿阀出油口二连接T口，补偿阀出油口四与T口相连，电磁换向阀油口四与T口相连，电磁换向阀油口二与B口相连。本发明装置增加控制阀，可调节进入机具马达的流量，实现对机具马达速度的单独控制。

Description

一种旋转机具液压系统
技术领域
本发明涉及一种旋转机具液压系统，属于挖掘机液压系统流量控制技术领域。
背景技术
随着挖掘机属具的不断创新，越来越多的属具可安装到挖掘机上进行多元化作业，实现一机多能，替代人工作业，加快作业效率。但是目前属具都是采用挖掘机原系统上的泵进行供油，在属具和挖掘机动臂斗杆等动作复合作业时，会降低属具及挖掘机动臂斗杆等动作速度，降低作业效率。
如图2所示，现有技术中的旋转马达4由机具控制阀3-4控制动作方向，动臂油缸5由动臂控制阀3-2控制油缸伸出收回，主泵2同时连接机具控制阀3-4和动臂控制阀3-2，主泵2输出液压油同时供给机具马达4和动臂油缸5。旋转马达4与动臂油缸5共用一个主泵2，旋转马达4旋转过程中调整动臂油缸5行程会引起旋转马达4旋转速度迅速下降，影响作业效率。
发明内容
本发明所要解决的技术问题是克服现有技术的缺陷，提供一种旋转机具液压系统，旋转马达机具速度不受动臂斗杆等其他动作影响，单独控制。
为达到上述目的，本发明提供一种旋转机具液压系统，包括油箱、主泵、控制阀和旋转马达，油箱连接主泵的吸油口，主泵的出油口连接控制阀的P口，控制阀的T口连通油箱，控制阀的A口和控制阀的B口连接旋转马达两端。
优先地，控制阀包括补偿阀、电比例阀和电磁换向阀，P口与电比例阀油口一相连，P口与补偿阀油口三相连， P口与补偿阀油口五相连，电比例阀油口二与补偿阀油口一相连，补偿阀出油口二与电磁换向阀油口三相连，补偿阀出油口二连接T口，补偿阀出油口四与T口相连，电磁换向阀油口四与T口相连，电磁换向阀油口二与B口相连。
优先地，控制阀包括溢流阀，P口连接溢流阀油口一，溢流阀油口二连接到T口。
优先地，控制阀包括第一端口溢流阀，电磁换向阀油口四与第一端口溢流阀油口一相连，第一端口溢流阀油口二与A口相连，第一端口溢流阀油口二与电磁换向阀油口一相连。
优先地，控制阀包括第二端口溢流阀，电磁换向阀油口二与第二端口溢流阀油口一相连，第二端口溢流阀油口二与T口相连，第二端口溢流阀油口一连通B口。
优先地，电磁换向阀为三位四通电磁换向阀，三位四通电磁换向阀的左位为油口一连通油口三且油口二连通油口四，三位四通电磁换向阀右位为油口一连通油口四且油口二连通油口三。
优先地，包括节流阀，补偿阀出油口二通过节流阀连接T口。
本发明所达到的有益效果：
本发明对旋转马达单独控制，通过电磁换向阀左位和右位的切换实现旋转马达正反转控制，通过电比例阀和补偿阀实现开关旋转马达的油路，实现了在旋转马达旋转过程中做动臂斗杆等其它动作，旋转马达旋转速度不受影响，提高了整机工作效率；
本发明当旋转马达所带负载过大，不能转动时，主泵输出液压油经过溢流阀7泄荷到液压油箱，当旋转马达顺时针转动时，如果电磁换向阀断电，电磁换向阀中位工作，主泵和旋转马达油路断开，液压油箱和旋转马达油路断开，旋转马达在惯性的作用下，继续顺时针旋转，A到C管路中压力降低，D到B管路中压力升高，此时第一端口溢流阀中从液压油箱吸油补充到A到C管路中，防止其吸空，第二端口溢流阀将D到B中高压油泄荷到液压油箱中，防止系统超载.
当旋转马达逆时针转动时，如果电磁换向阀断电，电磁换向阀中位工作，主泵和旋转马达油路断开，液压油箱和旋转马达油路断开，旋转马达在惯性的作用下，继续逆时针旋转，A到C管路中压力升高，D到B管路中压力降低，此时第一端口溢流阀中从将A到C管路中高压油泄荷到液压油箱，防止系统超载，第二端口溢流阀从液压油箱中吸油补充到D到B管路中，防止其吸空，避免油路中液压油全部流入油箱中，保障了整个油路工作时的流畅。
附图说明
图1是本发明的油路图；
图2是现有技术中旋转马达与动臂油缸的油路图。
附图标记含义，1、油箱；2、主泵；3、控制阀；4、旋转马达；31、补偿阀；32、电比例阀；33、第一端口溢流阀；34、第二端口溢流阀；35、电磁换向阀；36、节流阀；37、溢流阀；3-1、第一单向阀；3-2、动臂换向阀；3-3、第二单向阀；3-4、旋转马达换向阀；3-5、第一补油阀；3-6、第一溢流阀；3-7、第二单向阀；3-8、第二溢流阀。
具体实施方式
以下实施例仅用于更加清楚地说明本发明的技术方案，而不能以此来限制本发明的保护范围。
需要说明，若本发明实施例中有方向性指示(诸如上、下、左、右、前、后......)，则其仅用于解释在某一特定姿态下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，若在本发明中涉及“第一”、“第二”等的描述，则其仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本发明要求的保护范围之内。
该新型挖掘机旋转机具液压系统及控制阀主要由液压油箱1、主泵2、控制阀3、旋转马达4、动臂油缸5构成，其中控制阀3由31补偿阀、32电比例阀、33第一端口溢流阀、34第二端口溢流阀、35电磁换向阀、36节流阀和37溢流阀构成。
主泵2吸油口F与油箱1相连，主泵2出油口E与控制阀3的P口相连， P口连接到37溢流阀油口一，溢流阀37油口二连接到T口， T口与液压油箱1相连， P口与电比例阀32油口一相连，控制阀3的P口与补偿阀31油口三相连， P口与补偿阀31油口五相连，电比例阀32油口二与补偿阀31油口一相连，电比例阀32油口二与补偿阀31油口一相连，补偿阀31出油口二与节流阀36进油口相连，补偿阀31出油口二与电磁换向阀35油口三相连，节流阀36出油口与T口相连，补偿阀31出油口4与T口相连，电磁换向阀35油口四与T口相连，电磁换向阀35油口四与第一端口溢流阀33油口一相连，第一端口溢流阀33油口二与A口相连，第一端口溢流阀33油口二同时与电磁换向阀35油口一相连，电磁换向阀35油口二与B口相连，电磁换向阀35油口二与第二端口溢流阀34油口一相连，第二端口溢流阀34油口二与T口相连，第二端口溢流阀34油口一连通B口，A口与旋转马达4的C口相连， B口与旋转马达4的D口相连。
如此构成的本发明中，工作原理如下：
挖掘机启动后，发动机带动主泵2工作，主泵2输出液压油，进入控制阀3的P口，在不需要旋转马达4工作时候，电比例阀32不得电的情况下，其内部油路断开，液压油通过补偿阀31将主泵2输出的液压油接通到液压油箱1内；
当需要旋转马达4工作时候，电磁换向阀35左侧电磁铁或者右侧电磁铁以及电比例阀32得电，可根据速度需求，调整控制电比例阀32的电流，实现电比例阀32内部油路开口面积的大小，主泵2输出液压油，经过电比例阀32内部油路，再经过补偿阀31内部油路，再经过电磁换向阀35内部油路，进入旋转马达4，驱动旋转马达4转动；
当电磁换向阀35左侧电磁铁得电时，电磁换向阀35左位工作，主泵2输出液压油经过电磁换向阀35左位，经过A口C口进入旋转马达4，旋转马达4顺时针转动；当电磁换向阀35右侧电磁铁得电时，电磁换向阀35右位工作，主泵2输出液压油经过电磁换向阀35右位，经过B口D口进入旋转马达4，旋转马达4逆时针转动；
当旋转马达4所带负载过大，不能转动时，主泵2输出液压油经过溢流阀37泄荷到液压油箱1，当旋转马达4顺时针转动时，如果电磁换向阀35断电，电磁换向阀35中位工作，主泵2和旋转马达4油路断开，液压油箱1和旋转马达4油路断开，旋转马达4在惯性的作用下，继续顺时针旋转，A到C管路中压力降低，D到B管路中压力升高，此时第一端口溢流阀33中从液压油箱1吸油补充到A到C管路中，防止其吸空，第二端口溢流阀34将D到B中高压油泄荷到液压油箱1中，防止系统超载.
当旋转马达4逆时针转动时，如果电磁换向阀35断电，电磁换向阀35中位工作，主泵2和旋转马达4油路断开，液压油箱1和旋转马达4油路断开，旋转马达4在惯性的作用下，继续逆时针旋转，A到C管路中压力升高，D到B管路中压力降低，此时第一端口溢流阀33中从将A到C管路中高压油泄荷到液压油箱1，防止系统超载，第二端口溢流阀34从液压油箱1中吸油补充到D到B管路中，防止其吸空。
本发明装置增加控制阀，可调节进入机具马达的流量，实现对机具马达速度的单独控制。旋转马达机具速度不受动臂斗杆等其他动作影响，可根据工况需求实时调整旋转速度；本发明结构简单可靠、通用性好，适合产业化推广应用。
液压油箱1、主泵2、旋转马达4、动臂油缸5、补偿阀31、32电比例阀、第一端口溢流阀33、第二端口溢流阀34、电磁换向阀35、节流阀36和溢流阀37上述部件在现有技术中可采用的型号很多，本领域技术人员可根据实际需求选用合适的型号，本实施例不再一一举例。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和变形，这些改进和变形也应视为本发明的保护范围。

Claims (7)

1.一种旋转机具液压系统，其特征在于，包括油箱（1）、主泵（2）、控制阀（3）和旋转马达（4），油箱（1）连接主泵（2）的吸油口，主泵（2）的出油口连接控制阀（3）的P口，控制阀（3）的T口连通油箱（1），控制阀（3）的A口和控制阀（3）的B口连接旋转马达（4）两端。
2.根据权利要求1所述的一种旋转机具液压系统，其特征在于，
控制阀（3）包括补偿阀（31）、电比例阀（32）和电磁换向阀（35），P口与电比例阀（32）油口一相连，P口与补偿阀（31）油口三相连， P口与补偿阀（31）油口五相连，电比例阀（32）油口二与补偿阀（31）油口一相连，补偿阀（31）出油口二与电磁换向阀（35）油口三相连，补偿阀（31）出油口二连接T口，补偿阀（31）出油口四与T口相连，电磁换向阀（35）油口四与T口相连，电磁换向阀（35）油口二与B口相连。
3.根据权利要求1所述的一种旋转机具液压系统，其特征在于，控制阀（3）包括溢流阀（37），P口连接溢流阀（37）油口一，溢流阀（37）油口二连接到T口。
4.根据权利要求2所述的一种旋转机具液压系统，其特征在于，控制阀（3）包括第一端口溢流阀（33），电磁换向阀（35）油口四与第一端口溢流阀（33）油口一相连，第一端口溢流阀（33）油口二与A口相连，第一端口溢流阀（33）油口二与电磁换向阀（35）油口一相连。
5.根据权利要求2所述的一种旋转机具液压系统，其特征在于，控制阀（3）包括第二端口溢流阀（34），电磁换向阀（35）油口二与第二端口溢流阀（34）油口一相连，第二端口溢流阀（34）油口二与T口相连，第二端口溢流阀（34）油口一连通B口。
6.根据权利要求2所述的一种旋转机具液压系统，其特征在于，电磁换向阀（35）为三位四通电磁换向阀，三位四通电磁换向阀的左位为油口一连通油口三且油口二连通油口四，三位四通电磁换向阀右位为油口一连通油口四且油口二连通油口三。
7.根据权利要求2所述的一种旋转机具液压系统，其特征在于，
包括节流阀（36），补偿阀（31）出油口二通过节流阀（36）连接T口。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115045876A (zh) * 2022-06-14 2022-09-13 三一汽车起重机械有限公司 同步液压系统的控制方法、配重同步液压系统及起重机
WO2023035794A1 (zh) * 2021-09-07 2023-03-16 徐州徐工挖掘机械有限公司 一种旋转机具液压系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203730455U (zh) * 2013-12-23 2014-07-23 徐州徐工基础工程机械有限公司 旋挖钻机动力头缓冲补油系统
CN104214148A (zh) * 2014-08-29 2014-12-17 徐州徐工基础工程机械有限公司 一种智能化缓冲溢流装置
CN206175366U (zh) * 2016-11-04 2017-05-17 航天新长征电动汽车技术有限公司 一种方草捆捡拾机液压系统
CN207762060U (zh) * 2017-12-26 2018-08-24 长沙天盾重工有限责任公司 一种高空作业车液压系统
CN108894274A (zh) * 2018-07-27 2018-11-27 徐州工业职业技术学院 一种挖掘机回转能量回收和再利用系统
CN111350227A (zh) * 2020-03-23 2020-06-30 柳州柳工挖掘机有限公司 回转液压系统、回转液压系统的控制方法及挖掘机

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3654599B2 (ja) * 1994-09-09 2005-06-02 株式会社小松製作所 油圧式駆動装置の変速装置およびその変速制御方法
JPH08100805A (ja) 1994-09-29 1996-04-16 Daiden Co Ltd 油圧制御装置
US5680760A (en) * 1996-03-28 1997-10-28 Caterpillar Inc. Hydraulic drive system
US6076488A (en) * 1997-03-17 2000-06-20 Shin Caterpillar Mitsubishi Ltd. Cooling device for a construction machine
JP3859818B2 (ja) 1997-06-03 2006-12-20 株式会社タダノ 複動油圧アクチュエータの起動予報装置
JP2005325886A (ja) 2004-05-13 2005-11-24 Kobelco Contstruction Machinery Ltd ロードセンシング旋回油圧回路
JP2007133646A (ja) 2005-11-10 2007-05-31 Aiphone Co Ltd 集合住宅インターホンシステム
JP2008308944A (ja) 2007-06-18 2008-12-25 Nippon Pneumatic Mfg Co Ltd 建設機械におけるアタッチメントの油圧制御装置
CN101451548B (zh) * 2007-12-04 2010-10-13 中南大学 一种实现大惯性负载快速启停与平稳换向的液压传动系统
JP2009162350A (ja) 2008-01-09 2009-07-23 Komatsu Ltd 油圧モータ駆動装置
CN201574992U (zh) * 2009-11-10 2010-09-08 三一重工股份有限公司 多路阀、液压装置及混凝土泵车
JP6282127B2 (ja) 2014-02-04 2018-02-21 日本車輌製造株式会社 油圧ユニット
CN204628143U (zh) 2015-02-15 2015-09-09 徐工集团工程机械股份有限公司道路机械分公司 一种控制摊铺机输料的液压系统
JP2016216008A (ja) 2015-05-26 2016-12-22 ヤンマー株式会社 マリンギヤ装置
CN107355438A (zh) 2017-07-25 2017-11-17 江苏柳工机械有限公司 一种属具控制系统
DE102018003728A1 (de) * 2018-05-07 2019-11-07 Hydac Mobilhydraulik Gmbh Ventilanordnung zur Druckmittelversorgung eines hydraulischen Verbrauchers
CN109654074B (zh) * 2018-12-26 2020-04-07 太原理工大学 一种工程机械液压系统
CN110894840A (zh) 2019-12-03 2020-03-20 徐州徐工挖掘机械有限公司 一种独立散热液压系统及设置热压系统的工程机械
CN212202669U (zh) 2020-04-14 2020-12-22 徐州工业职业技术学院 工程机械行走机构及履带张紧装置一体化液压控制系统
CN113062888B (zh) 2021-04-23 2023-03-10 中国铁建重工集团股份有限公司 一种拼装机回转液压控制系统
CN113833701A (zh) 2021-09-07 2021-12-24 徐州徐工挖掘机械有限公司 一种旋转机具液压系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203730455U (zh) * 2013-12-23 2014-07-23 徐州徐工基础工程机械有限公司 旋挖钻机动力头缓冲补油系统
CN104214148A (zh) * 2014-08-29 2014-12-17 徐州徐工基础工程机械有限公司 一种智能化缓冲溢流装置
CN206175366U (zh) * 2016-11-04 2017-05-17 航天新长征电动汽车技术有限公司 一种方草捆捡拾机液压系统
CN207762060U (zh) * 2017-12-26 2018-08-24 长沙天盾重工有限责任公司 一种高空作业车液压系统
CN108894274A (zh) * 2018-07-27 2018-11-27 徐州工业职业技术学院 一种挖掘机回转能量回收和再利用系统
CN111350227A (zh) * 2020-03-23 2020-06-30 柳州柳工挖掘机有限公司 回转液压系统、回转液压系统的控制方法及挖掘机

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023035794A1 (zh) * 2021-09-07 2023-03-16 徐州徐工挖掘机械有限公司 一种旋转机具液压系统
US12247589B2 (en) 2021-09-07 2025-03-11 Xuzhou Xcmg Excavator Machinery Co., Ltd. Hydraulic system for rotary implement
CN115045876A (zh) * 2022-06-14 2022-09-13 三一汽车起重机械有限公司 同步液压系统的控制方法、配重同步液压系统及起重机

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Application publication date: 20211224