公开(公告)号：EP0749535B1

公开(公告)日：1998-06-03

申请号：EP95913076.6

申请日：1995-03-09

申请人： Schulze, Eckehart

发明人： Schulze, Eckehart

IPC分类号： F15B9/12

CPC分类号： F15B9/12

公开(公告)号：EP0559651B1

公开(公告)日：1994-05-11

申请号：EP91915910.3

申请日：1991-09-13

申请人： Schulze, Eckehart ,  ZANOLINI, Luciano

发明人： Schulze, Eckehart ,  ZANOLINI, Luciano

IPC分类号： B30B15/24

CPC分类号： B30B15/24

摘要： In a hydraulically driven machine with two vertical differential cylinders as drive cylinders arranged at a mutual lateral distance on side cheeks of the machine frame, the control components are two follow-up control valves with an electrically controlled predetermined reference position for an upper tool and a mechanical actual position indication which have a locking basic setting and two alternative through-flow settings which are allocated to the fast and load forward action directed downwards on the workpiece and the return action directed away from the workpiece. A piston area of the drive cylinder pistons limit an upper drive pressure chamber and a smaller piston area limits a lower drive pressure chamber of the drive cylinders through which axially passes the piston rod concerned to which the upper tool is connected. In fast forward action the weight of the upper tool and the piston is used as the driving power, whereby the pressure medium flows into the upper drive pressure chamber via inlet valves. In load forward action high pressure is applied to the upper drive pressure chambers. On return action the pressure in the upper drive pressure chambers is relieved via pressure-controlled outlet valves.

公开(公告)号：EP0527192B1

公开(公告)日：1994-03-09

申请号：EP91909216.3

申请日：1991-05-04

申请人： Schulze, Eckehart ,  Hartmann, Hans

发明人： Schulze, Eckehart ,  Hartmann, Hans

IPC分类号： B21D22/16 ,  G05B19/42

CPC分类号： B21D22/16 ,  G05B19/42 ,  G05B2219/36471 ,  G05B2219/41298 ,  G05B2219/45152

摘要： A process is disclosed for controlling the revolutions of the impression cylinder (29) of a printing machine (10). The coordinate driving units (52, 53), which are designed as valve controlled (49, 51) hydrocylinders (42, 47), are operated according to a play-back process according to which the coordinate driving units (52, 53) are operated according to a follow-up process in which position set values are electrically preregulated and mechanical real values are fed back. The slowing down path ΔS (contouring error) is continuously measured at least during the last revolution of the pressure roller (29), so that when a threshold value ΔSmax is exceeded, the tracking speed VB is reduced or a transition to an intermediate revolution curve occurs. A printing machine for carrying out the process is also disclosed.

公开(公告)号：EP0559651A1

公开(公告)日：1993-09-15

申请号：EP91915910.0

申请日：1991-09-13

申请人： Schulze, Eckehart ,  ZANOLINI, Luciano

发明人： Schulze, Eckehart ,  ZANOLINI, Luciano

IPC分类号： B30B15

CPC分类号： B30B15/24

摘要： Dans une machine à entraînement hydraulique qui comprend en tant que cylindres d'entraînement deux cylindres différentiels verticaux latéralement espacés sur les jumelles latérales du bâti de la machine, deux soupapes de régulation par poursuite fonctionnant sur la base d'une indication mécanique de la valeur réelle de la position, ainsi que de l'attribution par commande électrique d'une valeur de consigne de la position d'un outil supérieur, servent d'éléments de commande. Les soupapes de régulation ont une position de base de blocage et deux positions alternatives de passage correspondant à l'avance rapide et en charge, vers le bas, en direction de la pièce à usiner, et au retour en arrière par rapport à la pièce à usiner. Les pistons des cylindres d'entraînement délimitent avec une surface de piston une chambre supérieure de compression d'entraînement et avec une surface plus petite de piston une chambre inférieure de compression d'entraînement des cylindres d'entraînement, ces chambres étant traversées axialement par la tige correspondante de piston avec laquelle l'outil supérieur est relié. Dans le mode de fonctionnement à avance rapide, le poids de l'outil supérieur et du piston sont utilisés comme force d'entraînement et du milieu sous pression s'écoule à travers des soupapes d'apport dans les chambres supérieures de compression d'entraînement. Dans le mode de fonctionnement à avance en charge, une pression élevée s'exerce dans les chambres supérieures de compression d'entraînement. Pendant le retour en arrière, la pression dans les chambres supérieures de compression d'entraînement est déchargée à travers des soupapes d'écoulement commandées par pression.

公开(公告)号：EP1176698A2

公开(公告)日：2002-01-30

申请号：EP01118043.7

申请日：2001-07-25

申请人： Schulze, Eckehart ,  HARTMANN + LÄMMLE GMBH & CO. KG

发明人： Schulze, Eckehart ,  Gessler, Frank

IPC分类号： H02K5/08 ,  H02K5/15 ,  H02K5/10 ,  H02K7/14

CPC分类号： H02K5/08 ,  H02K5/10 ,  H02K7/14 ,  H02K15/12

摘要： Bei einem Elektromotor (10), dessen Rotor (11) in zwei Wälzlagern (26 und 29) drehbar gelagert ist, die jeweils von einer inneren bzw. äußeren zylindrisch-topfförmigen Lagerschale (24 bzw. 28) aufgenommen sind, ist der Außendurchmesser (D 4 ) des äußeren Lagerringes (36) des inneren Wälzlagers (26), der von einem ringzylindrischen Mantelbereich der inneren Lagerschale (24) umschlossen ist, kleiner ist als der radiale lichte Durchmesser (D 3 ) einer die innere Einhüllende des Statorkerns (13) bildenden Zylindermantelfläche. Die innere Lagerschale (24) ist zusammen mit dem Kern und den von diesem getragenen Feldspulen (12) außenseitig von einem als einstückiges Spritzgußteil ausgebildeten Kunststoff-Mantelteil (21) umschlossen. Die äußere Lagerschale (28) ist innerhalb einer bohrungsförmigen, kreiszylindrisch berandeten zentralen Öffnung des Kunststoff-Mantelteils, deren Durchmesser (D 2 ) geringfügig größer ist als der Innendurchmesser (D 3 ) des außen ummantelten Kerns (13) des Stators (14), mittels einer Ringdichtung (31) gegen das Kunststoff-Mantelteil (21) abgedichtet; das innere Wälzlager (26) ist als Loslager ausgebildet, dessen äußerer Lagerring (34) eine geführte axiale Verschiebbarkeit des Rotors (11) in der inneren Lagerschale (24) vermittelt.

摘要翻译： 在电动马达（10），其转子（11）在两个滚柱轴承可转动地安装分别由内和外圆柱杯形轴承壳（24或28），外径接收（26和29）（D4 ），其被封入（由内轴承壳24的环形筒状壳体区域内滚子轴承（26））的外轴承环（36）的比形成外筒表面的定子芯（13）的内包络线的直径（D3径向内侧）减小。 内轴承壳（24）与所述芯一起封入和上的形成为一体的注塑件的塑料外壳部分（21）的外侧，从而进行磁场线圈（12）。 孔形的，圆柱形的内外轴承壳（28）为界的塑料外壳部分，其直径（D2）是通过一个环形密封件的装置略比定子（14）的外包覆芯（13）的内径（D3）大的中央开口 （31）密封在塑料外壳部分（21）; 内滚子轴承（26）被设计为浮动轴承，它的外轴承环（34）具有在所述内轴承壳的转子（11）的被引导的轴向位移（24）输送。

公开(公告)号：EP0749535A1

公开(公告)日：1996-12-27

申请号：EP95913076.0

申请日：1995-03-09

申请人： Schulze, Eckehart

发明人： Schulze, Eckehart

IPC分类号： F15B9

CPC分类号： F15B9/12

摘要： In a hydraulic drive unit having a high-power hydraulic motor as the actuator, a main control valve, a hydraulic servo drive for actuating the main control valve and a tracking regulator valve which is provided for controlling the servo drive and operates by electromotive setting of a nominal position value and by mechanical feedback of the corresponding actual values, the tracking regulator valve (19) and the main control valve (16) are in the form of piston slide valves. The piston (87) of the main control valve (16) forms the housing of the tracking regulator valve which has two piston elements (39, 41), the axial distance between which can be adjusted by control edges (73, 74) and (76, 77) on the piston side and housing sides respectively of the tracking regulator valve (19). The piston (87) of the main control valve (16) has an axial through-bore (122) through which passes an actuating element of the tracking regulator valve (19) which can be displaced by the mechanical actual-value feedback so that the tracking regulator valve (19) assumes the shut-off position (0). Opening of the tracking regulator valve is controlled by the rotation of a nominal-value indicating element (49) by means of the electromotive drive (36) and closure of the tracking regulator valve (19) is effected by the rotation of an actual-value feedback element (48). The servo drive (18) is in the form of a dual-action hydraulic cylinder whose drive pressure chambers (33, 34) are delimited by axial blind bores (118, 118') of the piston (87) of the main control valve (16) and by pistons (138, 138') which are accommodated in said bores and are rigidly supported on the housing (86) of the main control valve (16).

公开(公告)号：EP0527967B1

公开(公告)日：1994-08-17

申请号：EP91920993.2

申请日：1991-05-08

申请人： Schulze, Eckehart

发明人： Schulze, Eckehart

IPC分类号： F03C1/06 ,  F15B9/14

CPC分类号： F15B9/14 ,  F03C1/0657 ,  F03C1/0665 ,  F03C1/0678

摘要： A hydraulic drive device, especially for robot arms with several joints, has as the power drive an axial-piston hydraulic motor (13) in which the pressure medium supply is controlled by a follow-up servo valve (14) and there is an electric motor (17) for predetermining the reference position which can be controlled by output signals from a central NC or CNC control unit. A cylindrical tubular section (46) of the drive shaft (47) of the rotor (16) of the axial-piston hydraulic motor (13) is fitted to rotate on an outer casing surface of a casing section (49) housing the electric motor (17) intended to control the predetermined reference via a hollow tubular axial extension (48) forming the bearing pin for the rotor (16) of the casing section (49) housing the electric motor (17). Control channels for controlling the operation of the axial-piston motor take the form of sector-shaped external flutes in the pin (48) with which radial transverse channels in the rotor (16) leading to the drive chambers (39) of the linear cylinder (41) of the rotor (16) alternately coincide.

公开(公告)号：EP0335939B1

公开(公告)日：1991-01-16

申请号：EP88908928.0

申请日：1988-10-15

申请人： Schulze, Eckehart

发明人： Schulze, Eckehart

IPC分类号： F15B13/02 ,  B23Q5/00

CPC分类号： B21D28/002 ,  B30B15/16

摘要： A hydraulic drive system for a punching or an embossing tool comprises a double-acting hydraulic drive cylinder with piston surfaces of various sizes. The fast feed, working feed and fast retrun are controlled by the joint or alternating application of pressure by the piston surfaces. For this purpose, a surface-switching valve switches over from differential drive to unilateral application of pressure to the largest drive surfaces when the drive pressure exceeds, for example, 90 % of the maximum output pressure of the pressure supply aggregate. The surface-switching valve comprises a nonreturn valve which is acted on in the direction of opening by the working pressure prevailing in the smallest drive pressure chamber. The elastic closing force of the nonreturn valve is equivalent to an opening pressure equal to approximately 90 % of the supply pressure. The surface-switching valve comprises a hydraulic slide valve with a valve body in the form of a differential piston which the body of the nonreturn valve. When the nonreturn valve is closed, the pressure acts on the smallest drive pressure chamber and the pressure prevailing in the largest drive pressure chamber acts on the largest step of the differential piston. The ratio of the surface area of the largest step of the piston to the area covered by the seat of the nonreturn valve seat is geater than the ratio of the largest to the smallest surface area of the piston of the hydraulic cylinder.

公开(公告)号：EP0279837B1

公开(公告)日：1990-11-14

申请号：EP87905716.4

申请日：1987-09-04

申请人： Schulze, Eckehart

发明人： Schulze, Eckehart

IPC分类号： F15B9/12

CPC分类号： F15B9/12

摘要： A hydraulic idling-regulating valve (10) comprises at least two mechanically operated through-flow valves (21, 22), which can be alternately controlled in a flow position and a closure position, said valves being both closed in a central middle position, together with an electromechanical specified value setting system for the position of the valve of a hydraulic drive cylinder (14), which system comprises a hollow shaft having a rotation speed correlated to a specified value. Also provided is a system for indicating the actual value, comprising an indicator spindle which engages with an inner thread of the hollow shaft, said spindle effecting a number of rotations related to the movements of the piston. The operative unit of the valve is subjected to the same movements as the specified value setting shaft. The casing (33) has a circular cylindrical core (48) with an initial longitudinal bore (31) in which are arranged the pistons of a pair of valves which can be moved between the stop elements (37, 38), which are mobile in a longitudinal direction, and with another bore in which the hollow shaft is mounted in a rotatable and movable manner, said stop elements being carried axially and radially on pivot pads arranged on the hollow shaft. The casing has a cylindrical circular envelope (49). The connection spaces on the pressure-source side and consumer side are delimited by external grooves on the cylindrical core and the inlet and outlet ducts are delimited by radial borings in the core and casing.

公开(公告)号：EP0339247A1

公开(公告)日：1989-11-02

申请号：EP89104861.3

申请日：1989-03-18

申请人： Schulze, Eckehart

发明人： Schulze, Eckehart

IPC分类号： B21J9/12

CPC分类号： B21D28/002 ,  B21J9/20 ,  B30B15/16 ,  B30B15/161

摘要： Bei einer hydraulischen Steuereinrichtung für die Antriebs­steuerung eines doppelt-wirkenden Hydrozylinders mit einer größeren Antriebsfläche und einer kleineren Gegenfläche seines Antriebskolbens ist als Richtungs- und Bewegungs-­Steuerventil ein Nachlauf-Regelventil vorgesehen, das mit elektrisch steuerbarer Positions-Sollwert-Vorgabe und mechanischer Positions-Istwert-Rückmeldung arbeitet. Das Druckversorgungsaggregat stellt zwei Versorgungs­drücke P N und P H unterschiedlichen Betrages bereit. Es ist ein druckgesteuertes Druck-Umschaltventil vor­gesehen, das bedarfsgerecht auf hohen Versorgungsdruck umschaltet, wenn die Last anwächst. Weiter ist ein Flächen-Umschaltventil, das ebenfalls druckgesteuert ist, vorgesehen, das, nachdem das Druck-Umschaltventil auf höheren Versorgungsdruck umgeschaltet hat, von Differentialbetrieb des Hydrozylinders auf einseitige Druckbeaufschlagung seines Kolbens auf dessen größerer Kolbenfläche umschaltet, bzw., wenn der Bedarf an Vorschubkraft wieder gesunken ist, nachdem das Druck-­Umschaltventil deswegen auf niedrigeren Versorgungs­druck zurückgeschaltet hat, seinerseits wieder auf Differentialbetrieb des Hydrozylinders zurückschaltet.

摘要翻译： 在用于在其驱动活塞上具有相对大的驱动面和相对小的相对面的双作用液压缸的驱动控制的液压控制装置中，以随动的方式提供方向和运动控制阀， 控制阀，其具有电可控的期望位置值规定和机械实际位置值反馈。 压力供应单元提供两个不同大小的供应压力PN和PH。 提供压力控制的压力切换阀，如果负载增加，则根据需要切换到高供给压力。 还提供了一种同样压力控制的面切换阀，其在压力切换阀切换到更高的供应压力之后，从液压缸的不同操作切换到其活塞的一侧上的加压，在较大的活塞 或者如果对推进力的要求再次下降，则在压力切换阀因此之后切换回降低供应压力时，其部分切换回液压缸的差速运行。 ... ...