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公开(公告)号：EP0085532A1
公开(公告)日：1983-08-10
申请号：EP83300383.3
申请日：1983-01-26
CPC分类号： F16H61/065 , F16H37/046
摘要： The invention provides a valve suitable for use in an overdrive unit, to control the rate of build-up and decay of fluid pressure in piston and cylinder mechanisms which move a clutch member of the overdrive between engaged and disengaged positions. The valve comprises a body (10) with a valve member (20) moveable to control communication between an inlet passage (15) and an outlet passage (22), and a piston (24) which is moveable between limiting positions under fluid pressure. A spring (28) is interposed between the piston (24) and valve member (20), which spring becomes loaded during movement of the piston whilst causing a relatively small increase in load on the valve member (20) and thus a period during which pressure in passage (15) increases gradually, thus providing a smooth shift as the overdrive engages. A second spring (34) operates between the piston (24) and valve member (20) when the piston has reached the limit of its travel, and a third spring (30) provides a residual load on the valve member (20) when the piston is in its starting position.
摘要翻译： 本发明提供一种适用于过驱动单元的阀，以控制在接合位置和脱离位置之间移动过驱动件的离合器构件的活塞和气缸机构中的流体压力的积聚和衰减速率。 该阀包括具有可移动以控制入口通道（15）和出口通道（22）之间的连通的阀构件（20）的主体（10）和可在流体压力下的限制位置之间移动的活塞（24）。 在活塞（24）和阀构件（20）之间插入有弹簧（28），弹簧在活塞运动期间变为负载，同时导致阀构件（20）上的负载相对较小的增加，并且因此在此期间 通道（15）中的压力逐渐增加，从而随着超速传动的作用而提供平滑的移动。 当活塞已经达到其行程的极限时，第二弹簧（34）在活塞（24）和阀构件（20）之间操作，并且当第二弹簧（34）在阀构件（20） 活塞处于起始位置。
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公开(公告)号：EP0039368A1
公开(公告)日：1981-11-11
申请号：EP79900920.4
申请日：1979-08-08
申请人： ISEKI & CO., LTD.
发明人： NISHIHARA, Tadao , HIYODO, Osamu
CPC分类号： F16H3/08 , F16H3/54 , F16H37/046
摘要： This reduction gear shifting device is employed in shifting the working speed of an agricultural tractor and is adapted to shift, in a simple manner, between a certain set rotational speed and reduced rotational speed slightly lower than the set speed. According to this device, the sun gear (30b) of a planetary gear mechanism is either coupled to an output shaft (12) or rendered stationary via a clutch (41) and a brake (42) provided at the axial side of an internal gear (7a). A supporting frame (17) for journaling the shaft (12) internally accommodates the clutch (41) and the brake (42) together with the internal gear (7a) to thereby install them at the front transmission case (3). The clutch (41) and the brake (42) are of a frictional multi- disk type in which at least one frictional plate (33) in one member is connected to at least one in the other member so as to move in the same direction. The brake (42) is so adapted that the supporting frame (17) serves as a stationary side member. The piston (40) for operating the clutch (41) and the brake (42) is movably fitted over a collar (36) fitted over the outside of a center boss (30c) of a housing (30) incorporating the sun gear (30b).
摘要翻译： 该减速换挡装置用于移动农用拖拉机的工作速度，并且适于以简单的方式在稍低于设定速度的一定的设定转速和降低的转速之间移动。 根据该装置，行星齿轮机构的太阳齿轮（30b）或者通过离合器（41）和设置在内齿轮的轴向侧的制动器（42）联接到输出轴（12）或使其静止 （7A）。 用于轴承（12）的轴承的支撑框架（17）在内部将内齿轮（7a）与离合器（41）和制动器（42）一起内置，从而将它们安装在前变速箱（3）上。 离合器（41）和制动器（42）是摩擦多片式的，其中一个构件中的至少一个摩擦板（33）连接到另一个构件中的至少一个，以沿相同的方向移动。 制动器（42）适于使支撑框架（17）用作固定侧构件。 用于操作离合器（41）和制动器（42）的活塞（40）可移动地装配在安装在包含太阳齿轮（30b）的壳体（30）的中心凸台（30c）的外侧的套环（36） ）。
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公开(公告)号：EP0039368A4
公开(公告)日：1982-03-29
申请号：EP79900920
申请日：1979-08-08
申请人： ISEKI AGRICULT MACH
发明人： NISHIHARA TADAO , HIYODO OSAMU
CPC分类号： F16H3/08 , F16H3/54 , F16H37/046
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