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    • 2. 发明申请
    • SAFE-TO-OPERATE HYDRAULIC DRIVE
    • 安全操作液压驱动
    • WO2016207741A1
    • 2016-12-29
    • PCT/IB2016/052392
    • 2016-04-27
    • MOOG GMBH
    • HANDLE, WernerKOHLHAAS, ReinerREIDL, Tim
    • F15B20/00F15B11/04
    • F15B20/007F15B11/0413F15B2211/20515F15B2211/20561F15B2211/27F15B2211/30515F15B2211/40507F15B2211/41572F15B2211/47F15B2211/6326F15B2211/7054F15B2211/75F15B2211/8752
    • The invention relates to a safe hydraulic drive system and a process for operating such a drive system, moving a piston rod (23) of at least one cylinder (2), comprising at least one first cylinder chamber (21) and a second, separate cylinder chamber (22), which are connected to one another via a connecting line (3) to form a fluid-filled hydraulic circuit, and a hydraulic drive (4) for conveying (UN, US) the fluid (F) from one cylinder chamber (21, 22), via the connecting line (3), into the other cylinder chamber (21, 22), in which the connecting line (3) is arranged, wherein the connecting line (3) has at least one parallel system, between the hydraulic drive (4) and one of the two cylinder chambers (21, 22), consisting of at least one first sub-connection (31) with at least one first stop valve (311) and a second sub-connection (32) with a baffle (322) arranged therein, wherein the connecting line (3), excluding the second sub-connection (32), has a first flow resistance and the second sub-connection has a second flow resistance due to the baffle (322) arranged therein, which is greater than the first flow resistance for the fluid (F), wherein the drive system (1) is provided with at least one open first stop valve (311) in normal mode (N) and with a closed first stop valve (311) in safe mode (S) for conveying (UN) the fluid (F), and a suitably high second flow resistance has been selected so that a maximum permissible speed for the piston rod (23) is not exceeded in safe mode (S), even when an external force (FG) acts on the drive system (1) in the direction of movement (B) of the piston rod (23).
    • 本发明涉及一种安全的液压驱动系统和用于操作这种驱动系统的方法,移动至少一个气缸(2)的活塞杆(23),该活塞杆(23)包括至少一个第一气缸室(21)和第二气缸室 气缸室(22),其经由连接管线(3)彼此连接以形成充满液体的液压回路;以及液压驱动器(4),用于将来自一个气缸(F)的流体(F)输送(UN,US) 室(21,22)经由连接管线(3)进入设置有连接管线(3)的另一个气缸室(21,22),其中连接管线(3)具有至少一个并联系统 在液压驱动器(4)和两个气缸室(21,22)中的一个之间,由至少一个具有至少一个第一截止阀(311)和第二子连接件(311)的第一子连接件 32),其中布置有挡板(322),其中除第二子连接件(32)之外的连接线(3)具有第一流动阻力,并且秒 由于其中布置有挡板(322),所述第二流动阻力大于流体(F)的第一流动阻力,其中所述驱动系统(1)设置有至少一个开放的第一止动件 在正常模式(N)下的阀(311)和用于输送(UN)流体(F)的安全模式(S)中的闭合的第一截止阀(311),并且选择适当高的第二流动阻力,使得 即使当外力(FG)沿活塞杆(23)的运动方向(B)作用在驱动系统(1)上时,也不会在安全模式(S)中超过活塞杆(23)的最大允许速度 )。