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    • 4. 发明公开
    • 건설기계 유압펌프 제어 장치
    • 液压泵用于建筑机械的控制系统和方法
    • KR1020140119909A
    • 2014-10-13
    • KR1020130034252
    • 2013-03-29
    • 두산인프라코어 주식회사
    • 김창묵정우용조영식
    • E02F9/22F02D29/04
    • E02F9/2246E02F9/2235E02F9/2292E02F9/2296F02D29/04F04B17/05F15B21/087F15B2211/20523F15B2211/20546F15B2211/20576F15B2211/426F15B2211/6309F15B2211/6313F15B2211/633F15B2211/6333F15B2211/6652F15B2211/6656
    • The present invention relates to a device for controlling the hydraulic pump of construction equipment. According to the present invention, the device for controlling the hydraulic pump of construction equipment comprises an engine dynamic characteristic variation confirming step (S20) of confirming that the characteristics of an engine is varied if the revolutions per minute (rpm) of the engine becomes lower than a set allowable range at a time when first and second hydraulic pumps (P1, P2) reach the required torque of the pumps; a pump load applying step (S40) of applying a pump load to the first and second hydraulic pumps (P1, P2) by increasing the torque of the pumps to the designated torque at a torque inclination if the variation of the dynamic characteristics of the engine is confirmed; a map data generating step (S60) of collecting information on the rpm of the engine, the angle of swash plates of the pumps, and the pressure of discharged working oil when the pump load is applied in the pump load applying step, generating the torque inclination for load sections based on the collected information, and generating a new torque inclination map (220a); and a renewing step (S80) of renewing an existing torque inclination map (220) as the new torque inclination map (220a).
    • 本发明涉及一种用于控制施工设备的液压泵的装置。 根据本发明,用于控制施工设备的液压泵的装置包括发动机动态特性变化确认步骤(S20),其确认发动机的特性如果发动机的每分钟转数(rpm)变低,则变化 比第一和第二液压泵(P1,P2)达到泵所需扭矩时的设定允许范围大; 如果发动机的动态特性的变化,则通过将泵的扭矩以扭矩倾斜度增加到指定扭矩,将泵载荷施加到第一和第二液压泵(P1,P2)的泵载荷施加步骤(S40) 被证实 在泵载荷施加步骤中,当施加泵载荷时,收集关于发动机的转速,泵的斜盘角度和排出的工作油的压力的信息的地图数据生成步骤(S60) 基于所收集的信息对负载部分的倾斜度,并产生新的扭矩倾斜图(220a); 以及更新现有的扭矩倾斜图(220)作为新的扭矩倾斜图(220a)的更新步骤(S80)。
    • 5. 发明公开
    • 캡 틸트 연동 프론트패널 개폐시스템
    • 一个用CAB倾斜启动的前面板开启闭合系统
    • KR1020140075372A
    • 2014-06-19
    • KR1020120143649
    • 2012-12-11
    • 현대자동차주식회사
    • 이현우
    • B62D33/067B62D33/063B62D25/08
    • B62D25/10B62D33/067B62D33/073E05F15/70E05Y2900/00E05Y2900/50E05Y2900/516E05Y2900/536F15B11/20F15B2211/3059F15B2211/31588F15B2211/324F15B2211/41527F15B2211/426F15B2211/7142F15B2211/72F15B2211/782F15B2211/783
    • The present invention relates to a system for opening and closing a front panel interlocking with a cap tilt, which is capable of preventing damage to the front panel due to interference between the front panel and a bumper, by opening and closing the front panel interlocking with a cap of a cap-over type truck when the cap tilts. The present invention comprises a hydraulic cylinder opening and closing the front panel (10) by being connected to the front panel (10) of the cap (15); a tilt cylinder (25) tilting the cap (15) by being connected to the cap; and a tilt pump (20) supplying hydraulic pressure by being connected to the tilt cylinder (25) and the hydraulic cylinder (30) through a hydraulic line. As a solenoid valve (50) is installed in the hydraulic lines of the tilt pump (20) and tilt cylinder (25), a hydraulic pump supplies hydraulic pressure to the hydraulic cylinder (30) and the tilt cylinder (25) through the hydraulic line when the solenoid valve (50) is positioned in a first position. The hydraulic pump supplies the hydraulic pressure to only the tilt cylinder (25) through the hydraulic line when the solenoid valve (50) is positioned in a second position.
    • 本发明涉及一种用于打开和关闭与盖倾斜互锁的前面板的系统,其能够防止由于前面板和保险杠之间的干涉而导致的前面板的损坏,通过打开和关闭与面板互锁的前面板 当盖子倾斜时,盖帽型卡车的帽子。 本发明包括通过连接到盖(15)的前面板(10)来打开和关闭前面板(10)的液压缸。 倾斜缸(25),其通过连接到所述盖而使所述盖(15)倾斜; 以及通过液压管线连接到倾斜缸(25)和液压缸(30)而提供液压的倾斜泵(20)。 由于电磁阀(50)安装在倾斜泵(20)和倾斜缸(25)的液压管路中,液压泵通过液压泵向液压缸(30)和倾斜缸(25)供应液压 当电磁阀(50)位于第一位置时, 当电磁阀(50)位于第二位置时,液压泵通过液压管线向液压缸(25)供应液压。
    • 10. 发明公开
    • 작업 기계의 압유 에너지 회수 장치
    • 作业机液压恢复装置
    • KR1020160034383A
    • 2016-03-29
    • KR1020167004516
    • 2014-01-28
    • 히다찌 겐끼 가부시키가이샤
    • 히지카타세이지이시카와고오지오오키다카토시이무라신야
    • E02F9/22E02F9/20F15B21/14
    • E02F9/2217E02F3/32E02F9/2075E02F9/2091E02F9/2235E02F9/2285E02F9/2292E02F9/2296F15B11/08F15B13/0401F15B13/044F15B21/14F15B2211/20546F15B2211/41527F15B2211/41581F15B2211/426F15B2211/611F15B2211/6316F15B2211/7053F15B2211/7058F15B2211/88
    • 유압펌프와, 작업장치를구동하는유압액추에이터와, 유압액추에이터를조작하는조작장치와, 유압액추에이터의복귀유를회생하는회생장치를구비한작업기계의압유에너지회수장치에있어서, 유압액추에이터로부터의복귀유가유통하는관로와, 관로를복수의관로로분기하는분기부와, 분기부로부터분기된한쪽관로이며회생장치가설치된회생회로와, 분기부로부터분기된다른쪽 관로이며복귀유를탱크로배출하는배출회로와, 배출회로에설치되어, 복귀유의유량을조정가능한유량조정장치와, 조작장치의조작량을검출하는조작량검출부와, 조작량검출부가검출한조작장치의조작량을받아들여, 배출회로를유통하는복귀유의목표배출유량과회생회로를유통하는복귀유의목표회생유량을산출하고, 목표배출유량에따라서유량조정장치를제어하고, 목표회생유량에따라서회생장치를제어하는제어장치를구비하였다.
    • 提供了一种用于工作机械的液压能量回收系统,该系统配备有液压泵,用于驱动作业机械的液压致动器,用于操作液压致动器的操作装置和用于回收从液压回流的返回流体的再生装置 执行器。 液压流体能量回收系统包括:用于允许来自液压致动器的返回流体流过管线的流体管线; 用于将流体管线分支成多个流体管线的部分; 用作分支流体管线之一并包括再生装置的恢复电路; 放电回路,其作为分支流体管线中的另一个并将返回流体排放到罐中; 流量控制装置,设置在所述放电电路中,以便能够控制所述返回流体的流量; 操作量检测器,用于检测操作装置上的操作量; 以及控制装置,被配置为获取由所述操作量检测器检测到的操作量,计算流过所述放电回路的返回流体的目标排出流量,并计算流过所述恢复电路的返回流体的目标再生流量, 控制装置根据目标排出流量控制流量控制装置,并根据目标再生流量控制再生装置。