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公开(公告)号：EP0560462A2
公开(公告)日：1993-09-15
申请号：EP93201194.3
申请日：1991-12-24
CPC分类号： F04C14/28 , F04C2/084 , F04C2/16 , F04C15/0042 , F04C15/0049 , F04C2230/605
摘要： A positive displacement pump having single or twin screws (2) is disclosed in which the screw flights (34,36,38,40) are formed in the outer surfaces thereof with balancing holes (82) which can be filled with material less dense than that of the screw flights which can each be closed by a cap (84) having an outer surface which is flush with the outer surface of the adjoining flight. Also disclosed for the or each screw flight is a wear measuring port (86) in which a measuring device can be inserted to measure relative wear between the corresponding screw flight and the pump casing. Alternatively a proximity sensor (98) can be located in the measuring port so that wear of the corresponding flight can be dynamically sensed during pump operation. Additionally, the provision of wear strips (122) on the outer surface of and of less than half the width of the screw flight are disclosed as is a fluid pressure feedback control system (119) for the or each screw flight which reduces the pressure differential over a part of the discharge end of each flight.
摘要翻译： 公开了具有单螺杆或双螺杆（2）的容积式泵，其中在其外表面中形成有螺旋螺纹（34,36,38,40），其具有平衡孔（82），所述平衡孔可以填充比 每个螺栓螺栓的螺旋螺栓的每一个可以由具有与邻接飞行的外表面齐平的外表面的盖（84）封闭。 还公开了用于或每个螺杆飞行的是磨损测量端口（86），其中可以插入测量装置以测量相应螺旋螺杆和泵壳体之间的相对磨损。 或者，接近传感器（98）可以位于测量端口中，使得可以在泵操作期间动态地感测相应飞行的磨损。 此外，公开了在螺旋飞行的外表面上设置磨损条（122）的宽度小于螺杆飞行宽度的一半，这是用于螺旋飞行或每个螺旋飞行的流体压力反馈控制系统（119），其降低了压力差 在每次飞行的排放端的一部分。
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公开(公告)号：EP0496170A3
公开(公告)日：1992-10-28
申请号：EP91312034.1
申请日：1991-12-24
CPC分类号： F04C14/28 , F04C2/084 , F04C2/16 , F04C15/0042 , F04C15/0049 , F04C2230/605
摘要： A positive displacement pump having single or twin crews (2) is disclosed in which the screw flights (34,36,38,40) are formed in the outer surfaces thereof with balancing holes (82) which can be filled with material less dense than that of the screw flights which can each be closed by a cap (84) having an outer surface which is flush with the outer surface of the adjoining flight. Also disclosed for the or each screw flight is a wear measuring port (86) in which a measuring device can be inserted to measure relative wear between the corresponding screw flight and the pump casing. Alternatively a proximity sensor (98) can be located in the measuring port so that wear of the corresponding flight can be dynamically sensed during pump operation. Additionally, the provision of wear strips (122) on the outer surface of and of less than half the width of the screw flight are disclosed as is a fluid pressure feedback control system (119) for the or each screw flight which reduces the pressure differential over a part of the discharge end of each flight.
摘要翻译： 公开了一种具有单个或两个机组（2）的容积式泵，其中在其外表面中形成有螺旋螺纹（34,36,38,40）的平衡孔（82），所述平衡孔可以填充比 每个螺栓螺栓的螺旋螺栓的每一个可以由具有与邻接飞行的外表面齐平的外表面的盖（84）封闭。 还公开了用于或每个螺杆飞行的是磨损测量端口（86），其中可以插入测量装置以测量相应螺旋螺杆和泵壳体之间的相对磨损。 或者，接近传感器（98）可以位于测量端口中，使得可以在泵操作期间动态地感测相应飞行的磨损。 此外，公开了在螺旋飞行的外表面上设置磨损条（122）的宽度小于螺杆飞行宽度的一半，这是用于螺旋飞行或每个螺旋飞行的流体压力反馈控制系统（119），其降低了压力差 在每次飞行的排放端的一部分。
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公开(公告)号：EP0190866B1
公开(公告)日：1991-07-03
申请号：EP86300561.7
申请日：1986-01-28
CPC分类号： B31F1/0077 , B30B1/261 , B30B1/32 , B31B50/592
摘要： A press for forming sheet material into a shaped article comprising a frame, first and second complementary dies, a cam supported by the frame for reciprocally moving the first die along an axis between a first position axially spaced from the second die and a second position fully mated with the second die, the cam including a dwell period when the first die is in the second position. The press includes a bolster supporting the second die for axial movement between upper and lower limits, the bolster being axially spaced from the upper limit by movement of the first die to the second position. The press also includes a hydraulic power circuit responsive to the position of the cam for normally biasing the bolster toward its upper limit under a first hydraulic pressure and for biasing the bolster toward the upper limit under a second hydraulic pressure during the dwell period, the second hydraulic pressure being greater than the first hydraulic pressure.
摘要翻译： 一种用于将片材形成成型制品的压制件，包括框架，第一和第二互补模具，由框架支撑的凸轮，用于沿第一位置与第二模具轴向间隔开的第一位置和第二位置之间沿着轴线往复移动第一模具; 与第二模具配合，凸轮包括当第一模具处于第二位置时的停留时段。 压力机包括支撑第二模具以在上限和下限之间进行轴向运动的垫片，该垫片通过第一模具移动到第二位置而与上限轴向间隔开。 压力机还包括响应于凸轮的位置的液压动力回路，用于在第一液压压力下使其朝向其上限正常地偏压，并且在停留时段期间在第二液压下朝向上限偏压气垫，第二 液压压力大于第一液压压力。
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公开(公告)号：EP0560462A3
公开(公告)日：1994-06-15
申请号：EP93201194.3
申请日：1991-12-24
CPC分类号： F04C14/28 , F04C2/084 , F04C2/16 , F04C15/0042 , F04C15/0049 , F04C2230/605
摘要： A positive displacement pump having single or twin screws (2) is disclosed in which the screw flights (34,36,38,40) are formed in the outer surfaces thereof with balancing holes (82) which can be filled with material less dense than that of the screw flights which can each be closed by a cap (84) having an outer surface which is flush with the outer surface of the adjoining flight. Also disclosed for the or each screw flight is a wear measuring port (86) in which a measuring device can be inserted to measure relative wear between the corresponding screw flight and the pump casing. Alternatively a proximity sensor (98) can be located in the measuring port so that wear of the corresponding flight can be dynamically sensed during pump operation. Additionally, the provision of wear strips (122) on the outer surface of and of less than half the width of the screw flight are disclosed as is a fluid pressure feedback control system (119) for the or each screw flight which reduces the pressure differential over a part of the discharge end of each flight.
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公开(公告)号：EP0496170A2
公开(公告)日：1992-07-29
申请号：EP91312034.1
申请日：1991-12-24
CPC分类号： F04C14/28 , F04C2/084 , F04C2/16 , F04C15/0042 , F04C15/0049 , F04C2230/605
摘要： A positive displacement pump having single or twin crews (2) is disclosed in which the screw flights (34,36,38,40) are formed in the outer surfaces thereof with balancing holes (82) which can be filled with material less dense than that of the screw flights which can each be closed by a cap (84) having an outer surface which is flush with the outer surface of the adjoining flight. Also disclosed for the or each screw flight is a wear measuring port (86) in which a measuring device can be inserted to measure relative wear between the corresponding screw flight and the pump casing. Alternatively a proximity sensor (98) can be located in the measuring port so that wear of the corresponding flight can be dynamically sensed during pump operation. Additionally, the provision of wear strips (122) on the outer surface of and of less than half the width of the screw flight are disclosed as is a fluid pressure feedback control system (119) for the or each screw flight which reduces the pressure differential over a part of the discharge end of each flight.
摘要翻译： 公开了一种具有单个或两个机组（2）的容积式泵，其中在其外表面中形成有螺旋螺纹（34,36,38,40）的平衡孔（82），所述平衡孔可以填充比 每个螺栓螺栓的螺旋螺栓的每一个可以由具有与邻接飞行的外表面齐平的外表面的盖（84）封闭。 还公开了用于或每个螺杆飞行的是磨损测量端口（86），其中可以插入测量装置以测量相应螺旋螺杆和泵壳体之间的相对磨损。 或者，接近传感器（98）可以位于测量端口中，使得可以在泵操作期间动态地感测相应飞行的磨损。 此外，公开了在螺旋飞行的外表面上设置磨损条（122）的宽度小于螺杆飞行宽度的一半，这是用于螺旋飞行或每个螺旋飞行的流体压力反馈控制系统（119），其降低了压力差 在每次飞行的排放端的一部分。
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公开(公告)号：EP0190866A3
公开(公告)日：1988-03-09
申请号：EP86300561
申请日：1986-01-28
CPC分类号： B31F1/0077 , B30B1/261 , B30B1/32 , B31B50/592
摘要： A press for forming sheet material into a shaped article comprising a frame, first and second complementary dies, a cam supported by the frame for reciprocally moving the first die along an axis between a first position axially spaced from the second die and a second position fully mated with the second die, the cam including a dwell period when the first die is in the second position. The press includes a bolster supporting the second die for axial movement between upper and lower limits, the bolster being axially spaced from the upper limit by movement of the first die to the second position. The press also includes a hydraulic power circuit responsive to the position of the cam for normally biasing the bolster toward its upper limit under a first hydraulic pressure and for biasing the bolster toward the upper limit under a second hydraulic pressure during the dwell period, the second hydraulic pressure being greater than the first hydraulic pressure.
摘要翻译： 一种用于将片材形成成型制品的压制件，包括框架，第一和第二互补模具，由框架支撑的凸轮，用于沿第一位置与第二模具轴向间隔开的第一位置沿着轴线往复移动第一模具， 与第二模具配合，凸轮包括当第一模具处于第二位置时的停留时段。 压机包括支撑第二模具以在上限和下限之间进行轴向移动的垫块，该垫片通过第一模具的移动与第二模具的位置轴向间隔开。 压力机还包括响应于凸轮的位置的液压动力回路，用于在第一液压下朝向其上限正常地偏压凸轮，并且在停留时段期间在第二液压下朝向上限偏压气垫，第二 液压压力大于第一液压压力。
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公开(公告)号：EP0190866A2
公开(公告)日：1986-08-13
申请号：EP86300561.7
申请日：1986-01-28
CPC分类号： B31F1/0077 , B30B1/261 , B30B1/32 , B31B50/592
摘要： A press for forming sheet material into a shaped article comprising a frame, first and second complementary dies, a cam supported by the frame for reciprocally moving the first die along an axis between a first position axially spaced from the second die and a second position fully mated with the second die, the cam including a dwell period when the first die is in the second position. The press includes a bolster supporting the second die for axial movement between upper and lower limits, the bolster being axially spaced from the upper limit by movement of the first die to the second position. The press also includes a hydraulic power circuit responsive to the position of the cam for normally biasing the bolster toward its upper limit under a first hydraulic pressure and for biasing the bolster toward the upper limit under a second hydraulic pressure during the dwell period, the second hydraulic pressure being greater than the first hydraulic pressure.
摘要翻译： 一种用于将片材形成成型制品的压制件，包括框架，第一和第二互补模具，由框架支撑的凸轮，用于沿第一位置与第二模具轴向间隔开的第一位置和第二位置之间沿着轴线往复移动第一模具; 与第二模具配合，凸轮包括当第一模具处于第二位置时的停留时段。 压力机包括支撑第二模具以在上限和下限之间进行轴向运动的垫片，该垫片通过第一模具移动到第二位置而与上限轴向间隔开。 压力机还包括响应于凸轮的位置的液压动力回路，用于在第一液压压力下使其朝向其上限正常地偏压，并且在停留时段期间在第二液压下朝向上限偏压气垫，第二 液压压力大于第一液压压力。
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