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    • 92. 发明公开
    • 오거 시스템
    • 奥格系统
    • KR1020140111561A
    • 2014-09-19
    • KR1020130025878
    • 2013-03-11
    • 주식회사 에이엔케이권정수이영재
    • 권정수이영재
    • E02F9/22E02F9/24E02F3/06
    • E21B7/022E02F3/06E21B7/027F15B2211/863F15B2211/875
    • The present invention relates to an auger system and, more specifically, to an auger system capable of preventing accidents by reducing or stopping the rotation of a bit within the shortest time. The auger system according to an embodiment of the present invention comprises an auger for excavating the ground; an operation valve for supplying operation oil received from a hydraulic pump to the auger or shutting off the operation oil; a control part for generating an emergency control signal if a result comparing the pressure of the operation oil supplied to the auger and the pressure of the operation oil discharged from the auger with a set pressure is overload; a pressure sensor for transmitting the emergency control signal received from the control part; and a dump valve for moving the operation oil to an operation oil tank according to the emergency control signal received from the pressure sensor.
    • 本发明涉及一种螺旋钻系统,更具体地说,涉及一种通过在最短时间内减少或停止钻头的旋转来防止事故的螺旋钻系统。 根据本发明的实施例的螺旋钻系统包括用于挖掘地面的螺旋推运器; 操作阀,用于将从液压泵接收的操作油供给到螺旋钻或者切断操作油; 用于产生紧急控制信号的控制部分,如果比较供给到螺旋钻的操作油的压力和从螺旋推运器排出的操作油的压力达到设定压力的结果过载; 用于发送从所述控制部接收的所述应急控制信号的压力传感器; 以及用于根据从压力传感器接收到的应急控制信号将操作油移动到操作油箱的倾卸阀。
    • 94. 发明公开
    • 굴삭기의 붐 하강 안전시스템
    • 用于挖掘机的下车安全系统
    • KR1020090069687A
    • 2009-07-01
    • KR1020070137432
    • 2007-12-26
    • 두산인프라코어 주식회사
    • 임광호
    • E02F9/24E02F9/20E02F9/14
    • E02F9/24B60Y2200/412E02F9/226F15B20/004F15B2211/863
    • A boom lift-down security system for an excavator is provided to simplify the configuration for securing the flow rate for lifting down the boom because the check valve is set up on the boom branch line branched from the main supply line. A boom lift-down security system for an excavator comprises an accumulator(40) wherein the discharged working fluid is supplied by the pilot pump(10) and is condensed, and an emergency boom lift-down valve unit(50) which transforms working fluid so that the working fluid of the boom control unit(20) is drained when a safety signal is applied from a safety lever(31) and supplies the condensed working fluid of accumulator to the boom control unit only when a safety release signal is applied from the safety lever. The boom lift-down valve unit comprises a check valve(52) and an emergency boom lift-down valve(53).
    • 提供了一种用于挖掘机的吊臂提升安全系统,以简化用于确保用于提升起重臂的流量的结构,因为止回阀设置在从主供应线分支的起重臂分支线上。 一种用于挖掘机的吊杆提升安全系统,包括蓄能器(40),其中排放的工作流体由先导泵(10)供应并被冷凝;以及紧急吊杆提升阀单元(50),其将工作流体 使得当从安全杆(31)施加安全信号时,起重臂控制单元(20)的工作流体被排出,并且只有当施加安全释放信号时才将蓄能器的冷凝工作流体供应到悬臂控制单元 安全杆。 动臂降压阀单元包括止回阀(52)和紧急吊杆降压阀(53)。
    • 95. 发明授权
    • 굴삭기의 붐 비상 하강장치
    • 挖掘机固定装置
    • KR100701031B1
    • 2007-03-29
    • KR1020060043867
    • 2006-05-16
    • 임사현
    • 임사현
    • E02F9/00E02F9/20
    • E02F9/226B60Y2200/412E02F9/2267E02F9/24F15B2211/863
    • An emergency control device of a boom in an excavator is provided to prevent accidents by controlling falling of a bucket in a breakdown of a hydraulic line, to protect a cylinder and parts against surge pressure by forming an overload relief valve, and to regulate speed according to the flow rate by varying the opening area according to pilot pressure. An emergency control device of a boom(200) includes a cylinder(10) installed between the boom and an excavator body, a first line(20) connected to a head of the cylinder, a second line(30) connected to a rod of the cylinder, a main control valve(40) installed to the first line and the second line, a joy stick(50) connected to the main control valve to operate the boom, a direction change valve(60) formed in the middle of the first line to vary the area according to pilot pressure by moving actuating fluid uni-directionally with a check valve, a pilot line(70) connected to the direction change valve, the main control valve and the joy stick, an overload relief valve(80) connected to the first line and the pilot line to prevent surge pressure by regulating the maximum pressure, a first check valve(90) installed in the pilot line and arranged between the overload relief valve and the main control valve, and an orifice(100) connected to the pilot line in parallel. A second check valve(110) is connected to the first line in parallel to move actuating fluid uni-directionally.
    • 提供挖掘机的起重臂的应急控制装置,通过控制液压管线破裂时的铲斗下落来防止事故,通过形成过载安全阀来保护缸体和零件免受浪涌压力的影响,并且根据 通过根据先导压力改变开口面积来获得流量。 起重臂(200)的应急控制装置包括安装在起重臂和挖掘机主体之间的缸(10),连接到缸的头部的第一管线(20),连接到缸体 所述气缸,安装在所述第一线路和所述第二线路上的主控制阀(40),连接到所述主控制阀以操作所述起重臂的操纵杆(50),形成在所述主缸 第一线,通过用止回阀单向移动致动流体,与换向阀,主控制阀和操纵杆连接的先导管路(70),过载安全阀(80) ),通过调节最大压力来防止浪涌压力,第一止回阀(90)安装在先导管路中并且布置在过载溢流阀和主控制阀之间,以及孔口(100) )并联连接到引导线。 第二止回阀(110)并联连接到第一管线,以单向移动致动流体。
    • 97. 发明授权
    • 유압실린더 제어밸브
    • 液压缸控制阀
    • KR101478199B1
    • 2014-12-31
    • KR1020130141211
    • 2013-11-20
    • 대성나찌유압공업(주)
    • 김정한
    • F15B11/00F15B21/04
    • F15B21/08F15B20/002F15B20/004F15B2211/405F15B2211/862F15B2211/863
    • The present invention relates to a hydraulic cylinder control valve, wherein the operations of a cylinder used for lifting and lowering are carried out by current control and, particularly, the current state of the cylinder can be maintained in an emergency case such as the engine stopping and the cutoff of power supply during operation. The hydraulic cylinder control valve comprises: a valve body forming the outer appearance and having a pump port connected to a hydraulic pump, a cylinder port connected to a hydraulic cylinder and a tank port connected to a hydraulic oil tank for storing discharged hydraulic oil; a main spool provided to the valve body and controlling the hydraulic oil supplied through the cylinder port so as to lift or lower the hydraulic cylinder; an opened proportional opening and closing valve driven by the current supply from the outside and moving the main spool by the pressure of the hydraulic oil supplied from the hydraulic pump such that the hydraulic pump and the cylinder can communicate with each other; a closed proportional control valve driven by the current supply from the outside and moving the main spool by the pressure of the hydraulic oil supplied from the hydraulic pump such that the hydraulic pump and the cylinder can be blocked from each other; and a locking control valve arranged between the main spool and the cylinder and driven by the current so as to allow only the flow of the hydraulic oil from the main spool to the cylinder in an off-state and make the main spool and the cylinder communicate with each other in an on-state.
    • 液压缸控制阀技术领域本发明涉及一种液压缸控制阀,其中用于提升和降低的气缸的操作通过电流控制来执行,特别地,气缸的当前状态可以被保持在紧急情况下,例如发动机停止 并在运行期间切断电源。 液压缸控制阀包括:形成外观的阀体,具有连接到液压泵的泵口,连接到液压缸的气缸端口和连接到用于存储排出的液压油的液压油箱的罐口; 主阀芯,其设置在阀体上并控制通过气缸端口供给的液压油,以提升或降低液压缸; 由外部的电流供给驱动的开放的比例开关阀,并通过从液压泵供给的液压油的压力使主阀芯移动,使液压泵和气缸相互连通; 由来自外部的电流供给驱动的闭合比例控制阀,并且通过从液压泵供给的液压油的压力使主阀芯移动,使得液压泵和气缸能够相互阻塞; 以及锁定控制阀,其布置在主阀芯和气缸之间并由电流驱动,以便仅允许液压油从主阀芯到气缸的流动处于断开状态,并使主阀芯和气缸连通 彼此处于开启状态。
    • 98. 发明公开
    • 유압시스템 과열 경고수단을 갖춘 농작업 차량
    • 装有温度警告装置的液压系统农机
    • KR1020130076096A
    • 2013-07-08
    • KR1020110144522
    • 2011-12-28
    • 대동공업주식회사
    • 권용훈서진
    • F15B13/02F15B21/04F15B20/00
    • F15B20/00F15B21/04F15B2211/863F15B2211/875F15B2211/885
    • PURPOSE: A farm work vehicle with an overheat alarming unit for a hydraulic system is provided to detect the temperature of an overheated oil which is a working fluid, and to output the temperature through a device such as a warning light to the outside. CONSTITUTION: A farm work vehicle with an overheat alarming unit for a hydraulic system comprises a first oil pressure valve (1), a second oil pressure valve (2), a hydraulic oil supply unit, an oil temperature sensor (4), an alarming unit (5). The first oil pressure valve controls the flow rate and direction of hydraulic oil over the whole system. The second oil pressure valve controls the flow of the hydraulic oil for generating a front-wheel steering power. The hydraulic oil supply unit comprises a hydraulic pump (30) which is mechanically driven to provide the hydraulic oil to the first and the second oil pressure valve and to an oil tank (34) which accommodates oil for forming the hydraulic oil. The oil temperature sensor measures the temperature of a working fluid, and outputs a signal which is related to overheating of a hydraulic system in case the measured temperature is over a predetermined temperature. The alarming unit outputs the information to the outside, where the output information is related to overheating of a system based on the overheating signal which is output from the oil temperature sensor.
    • 目的:提供一种具有液压系统过热报警装置的农用车辆,以检测作为工作流体的过热油的温度,并通过诸如警告灯的装置将温度输出到外部。 构成:具有用于液压系统的过热报警单元的农用车辆包括第一油压阀(1),第二油压阀(2),液压油供应​​单元,油温传感器(4),报警器 单位(5)。 第一台油压阀控制整个系统的液压油流量和方向。 第二油压阀控制用于产生前轮转向动力的液压油的流动。 液压油供给单元包括液压泵(30),其被机械地驱动以将液压油提供给第一和第二油压阀以及容纳用于形成液压油的油的油箱(34)。 油温传感器测量工作流体的温度,并且在测量温度超过预定温度的情况下输出与液压系统的过热有关的信号。 报警单元根据从油温传感器输出的过热信号将信息输出到外部,其中输出信息与系统的过热相关。
    • 99. 发明授权
    • Compensating equipment for pressure variation of oil pressure instrument
    • 油压仪表的压力变化补偿设备
    • KR100976145B1
    • 2010-08-16
    • KR20100041929
    • 2010-05-04
    • JOEN CO LTD
    • PARK JAE SUNG
    • F15B3/00G05D16/10
    • F15B21/001F15B21/04F15B2211/86F15B2211/863F15B2211/865
    • PURPOSE: A pressure compensator of a hydraulic device is provided to immediately compensate the increase and decrease of pressure by the volume change of hydraulic fluid according to temperature change. CONSTITUTION: A pressure compensator of a hydraulic device comprises a hydraulic machinery tool(10), a compensation chamber(20), a first plunger(30), a second plunger(40), a complex spring(50) and a pressure controller(60). The hydraulic machinery tool comprises a hydraulic feeding port(11). The compensation chamber comprises a hydraulic passage and a plunger operating unit. The hydraulic passage and plunger operating unit are successively formed in multi-stages. The first plunger is inserted to the plunger operating unit. The complex spring is inserted between the first plunger and the second plunger. The pressure wicket prevents the displacement of the second plunger.
    • 目的:提供液压装置的压力补偿器,以根据温度变化立即补偿液压油体积变化的压力增加和减小。 构成:液压装置的压力补偿器包括液压机械工具(10),补偿室(20),第一柱塞(30),第二柱塞(40),复合弹簧(50)和压力控制器 60)。 液压机械工具包括液压供给口(11)。 补偿室包括液压通道和柱塞操作单元。 液压通道和柱塞操作单元依次形成多级。 第一柱塞插入柱塞操作单元。 复合弹簧插入在第一柱塞和第二柱塞之间。 压力小门防止第二柱塞的位移。
    • 100. 发明公开
    • 에어실린더 유니트의 오동작 감지장치
    • 用于感测气缸单元错误操作的装置
    • KR1020070008139A
    • 2007-01-17
    • KR1020050063133
    • 2005-07-13
    • 삼성전자주식회사
    • 김종준
    • F15B15/00
    • F15B20/005F15B15/1423F15B2211/86F15B2211/863
    • A defective operation sensing device of an air cylinder unit is provided to prevent a loss of working time and an error by detecting an air leakage between a piston and a cylinder in moving the piston of the air cylinder of a semiconductor manufacturing facility up and down and to prevent defective operation in moving the piston up and down. A defective operation sensing device of an air cylinder unit comprises a piston(102) vertically moved by air pressure; a cylinder main body(100) embedding the piston inside and having an upper pressure chamber(112) and a lower pressure chamber(110) at both sides about the piston; a shaft(104) combined with the piston installed in the cylinder main body and protruded outward the cylinder main body to be linearly moved up and down; an O-ring(108) installed at the outer peripheral surface of the piston to tightly close pressure in the cylinder main body while moving the piston up and down; a first pressure adjusting valve(114) installed at one side of the upper side of the cylinder main body to regulate compressed air in the upper pressure chamber of the cylinder main body to a desired pressure; a second pressure adjusting valve(116) regulating compressed air in the lower pressure chamber of the cylinder main body to a desired pressure; a first air supply line(124) connected with the first pressure adjusting valve to shape an air supply path; a second air supply line connected with the second pressure adjusting valve to shape an air supply path; a first air amount sensor(118) installed on the first air supply line to detect air pressure; a second air amount sensor(120) installed on the second air supply line to detect air pressure; and a controller(122) generating interlock in escape from a preset air amount by comparing the air amount obtained from the first and second air amount sensors with the preset air amount. The controller judges that it is an air leakage when the air amount obtained from the first and second air amount sensors is under or over the preset air amount.
    • 提供一种气缸单元的有缺陷的操作感测装置,用于通过在上下运动半导体制造设备的气缸的活塞时检测活塞和气缸之间的空气泄漏来防止工作时间的损失和误差,以及 以防止上下移动活塞的缺陷操作。 气缸单元的故障操作感测装置包括通过空气压力垂直移动的活塞(102); 气缸主体(100),其内部嵌入活塞并且在活塞的两侧具有上压力室(112)和下压力室(110); 与安装在所述气缸主体中的所述活塞组合的轴(104),并且突出到所述气缸主体的外部以使其上下线性地移动; 安装在所述活塞的外周面的O形环(108),以在上下移动所述活塞的同时紧紧地压紧所述气缸主体的压力; 第一压力调节阀(114),其安装在所述气缸主体的上侧的一侧,以将所述气缸主体的上压力室中的压缩空气调节到期望的压力; 第二压力调节阀(116),其将所述气缸本体的所述低压室中的压缩空气调节到期望的压力; 与第一压力调节阀连接以形成空气供应路径的第一供气管线(124) 与所述第二压力调节阀连接的第二供气管线,以形成供气路径; 第一空气量传感器(118),其安装在所述第一空气供应管线上以检测空气压力; 第二空气量传感器(120),其安装在所述第二空气供应管线上以检测空气压力; 以及控制器(122),通过将从第一和第二空气量传感器获得的空气量与预设空气量进行比较,产生从预设空气量逃逸的互锁。 当从第一和第二空气量传感器获得的空气量低于或超过预设空气量时,控制器判断为漏气。