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公开(公告)号:US07047734B2
公开(公告)日:2006-05-23
申请号:US10972413
申请日:2004-10-26
IPC分类号: F16D31/02
CPC分类号: F15B21/008 , E02F9/2207 , E02F9/2214 , E02F9/2217 , F15B1/021 , F15B1/24 , F15B15/1457 , F15B15/149 , F15B2201/205 , F15B2201/31 , F15B2201/3158 , F15B2201/411 , Y02E60/15
摘要: A hydraulic circuit for a hydraulic cylinder capable of executing and adjusting a shock absorbing function at the time of stopping the operation of a cylinder piston rod and releasing the function, comprises a damping control valve (v1) having a first switching position (v11) which blocks the connection of the accumulation port (22) with outside and performs supply and discharge or discharge and supply of the operating oil with respect to the first cylinder chamber (3) and the second cylinder chamber (4), a second switching position (v12) connecting at least the accumulation port (22) and the second cylinder chamber (4), and a third switching position (v13) connecting at least the accumulation port (22) and the first cylinder chamber (3).
摘要翻译: 一种用于在停止气缸活塞杆的操作并释放功能时执行和调节减震功能的液压缸的液压回路包括具有第一切换位置(v 11)的阻尼控制阀(v 1) ),其阻止所述蓄积口(22)与外部的连接,并且相对于所述第一气缸室(3)和所述第二气缸室(4)进行供给和排放和供给所述工作油,所述第二开关位置 至少连接到所述蓄积口(22)和所述第二缸室(4)的第二开关位置(v 12),以及至少连接所述蓄积口(22)和所述第一缸室(3)的第三切换位置(v 13)。
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公开(公告)号:US07121089B2
公开(公告)日:2006-10-17
申请号:US10972386
申请日:2004-10-26
CPC分类号: F15B21/008 , E02F9/2217 , F15B1/021 , F15B1/24 , F15B15/1457 , F15B15/149 , F15B2201/205 , F15B2201/31 , F15B2201/3158 , F15B2201/411
摘要: In a hydraulic cylinder having a shock absorbing function, and capable of stopping as desired by an accumulator disposed within a cylinder rod. The accumulator includes an accumulator piston that divides the cylinder rod interior into first and second cylinder rod chambers, gas hermetically charged into the second cylinder rod chamber, and an accumulation port that is communicated with the first cylinder rod chamber and flows the operating oil from outside into the first cylinder rod chamber.
摘要翻译: 在具有冲击吸收功能的液压缸中,并且能够根据需要由设置在气缸杆内的蓄能器停止。 蓄能器包括蓄压器活塞,其将气缸杆内部分成第一和第二气缸杆室,气体充气到第二气缸杆室中的气体,以及与第一气缸杆室连通并从外部流动工作油的累积口 进入第一个气缸杆室。
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公开(公告)号:US20050098326A1
公开(公告)日:2005-05-12
申请号:US10972413
申请日:2004-10-26
IPC分类号: F15B21/02 , E02F9/22 , F15B1/02 , F15B1/24 , F15B11/00 , F15B15/14 , F15B21/04 , F15B21/08 , F15B21/14 , A01B41/06
CPC分类号: F15B21/008 , E02F9/2207 , E02F9/2214 , E02F9/2217 , F15B1/021 , F15B1/24 , F15B15/1457 , F15B15/149 , F15B2201/205 , F15B2201/31 , F15B2201/3158 , F15B2201/411 , Y02E60/15
摘要: A hydraulic circuit for a hydraulic cylinder capable of executing and adjusting a shock absorbing function at the time of stopping the operation of a cylinder piston rod and releasing the function, comprises a damping control valve (v1) having a first switching position (v11) which blocks the connection of the accumulation port (22) with outside and performs supply and discharge or discharge and supply of the operating oil with respect to the first cylinder chamber (3) and the second cylinder chamber (4), a second switching position (v12) connecting at least the accumulation port (22) and the second cylinder chamber (4), and a third switching position (v13) connecting at least the accumulation port (22) and the first cylinder chamber (3).
摘要翻译: 一种用于在停止气缸活塞杆的操作并释放功能时执行和调节减震功能的液压缸的液压回路包括具有第一切换位置(v 11)的阻尼控制阀(v 1) ),其阻止所述蓄积口(22)与外部的连接,并且相对于所述第一气缸室(3)和所述第二气缸室(4)进行供给和排放和供给所述工作油,所述第二开关位置 至少连接到所述蓄积口(22)和所述第二缸室(4)的第二开关位置(v 12),以及至少连接所述蓄积口(22)和所述第一缸室(3)的第三切换位置(v 13)。
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公开(公告)号:US20050086934A1
公开(公告)日:2005-04-28
申请号:US10972386
申请日:2004-10-26
CPC分类号: F15B21/008 , E02F9/2217 , F15B1/021 , F15B1/24 , F15B15/1457 , F15B15/149 , F15B2201/205 , F15B2201/31 , F15B2201/3158 , F15B2201/411
摘要: In a hydraulic cylinder having a shock absorbing function, and capable of stopping as desired by an accumulator disposed within a cylinder rod, the accumulator comprises an accumulator piston that divides the cylinder rod interior into first and second cylinder rod chambers, gas hermetically charged into the second cylinder rod chamber, and an accumulation port that is communicated with the first cylinder rod chamber and flows the operating oil from outside into the first cylinder rod chamber.
摘要翻译: 在具有冲击吸收功能的液压缸中,并且能够根据需要由设置在缸杆内的蓄能器停止,蓄能器包括蓄能器活塞,其将气缸杆内部分成第一和第二气缸杆室,气体被气密地装入 第二气缸杆室和与第一气缸杆室连通并将工作油从外部流入第一气缸杆室的蓄压口。
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公开(公告)号:US06948417B2
公开(公告)日:2005-09-27
申请号:US10134752
申请日:2002-04-30
CPC分类号: F15B15/1457 , F15B15/149 , F16J1/09 , F16J1/14
摘要: A fluid cylinder with a swivel joint which is more improved with high utility is provided. To this end, in the fluid cylinder, a flow passage (R2b) leading to a chamber (1F) at the rod side of the cylinder is provided inside a rod (3), and a pin hole (3H) in a rod front end portion (3F) and a pin (P1) fitted in the pin hole (3H) are formed into a swivel joint so that the flow passage (R2b) is always guided to an outside even if the pin hole (3H) and the pin (P1) are relatively rotated.
摘要翻译: 提供了一种具有旋转接头的液压缸,其具有更高的效用而改进。 为此,在流体缸中,在杆(3)的内部设置有通向缸体的杆侧的室(1F)的流路(R 2 b),并且在孔 杆前端部(3F)和安装在销孔(3H)中的销(P1)形成为旋转接头,使得流路(R 2 b)总是被引导到外部,即使 销孔(3 H)和销(P 1)相对旋转。
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公开(公告)号:US06578296B2
公开(公告)日:2003-06-17
申请号:US09994750
申请日:2001-11-28
申请人: Kenzo Kimoto , Masatake Tamaru , Masami Naruse , Sadao Nunotani , Jun Maruyama , Kenji Kanemaru , Tatsuya Futami
发明人: Kenzo Kimoto , Masatake Tamaru , Masami Naruse , Sadao Nunotani , Jun Maruyama , Kenji Kanemaru , Tatsuya Futami
IPC分类号: E02F336
CPC分类号: E02F9/2267 , E02F9/2271 , E02F9/2275
摘要: A hydraulic pipe arrangement of a working machine is not in contact with an obstacle and no torsion and no bending are generated. Accordingly, in a hydraulically driven type working machine provided with a boom (1) having a vertical swing supporting point supported at a base end side by a machine frame and a joint connection supporting point in a front end side, an arm (2) connected in a base end side to the joint connection supporting point, a boom driving hydraulic cylinder (6a) hoisting around a hoist supporting point provided in the machine frame so as to drive the boom, an arm driving hydraulic cylinder (7), and a working tool driving hydraulic cylinder (8), a swivel joint mechanism relaying a hydraulic pipe arrangement from a side of the machine frame is provided at a center of at least one of the vertical swing supporting point, the joint connection supporting point and the boom driving hydraulic cylinder hoist supporting point.
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