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2. 发明公开

EP0793018A1 SWASH PLATE ANGLE CHANGING DEVICE FOR SWASH PLATE TYPE PISTON PUMP MOTOR 失效
标题翻译： NEIGUNGSWINKELSTELLVORRICHTUNGFÜREINE TAUMELSCHEIBENPUMPE
公开(公告)号：EP0793018A1
公开(公告)日：1997-09-03
申请号：EP95934833.5
申请日：1995-10-18
申请人： KOMATSU LTD.
发明人： ARAI, Mitsuru , KADO, Hideki , NUNOTANI, Sadao , MORITA, Koichi , OSHIRO, Mitsuru , HAYASHI, Seita
IPC分类号： F04B1/22
CPC分类号： F04B1/2085 , Y10T74/18336
摘要： A swash plate angle changing device for swash plate type piston pump motors comprising a cylinder block provided in a casing (1) to be rotatable with a shaft, a plurality of pistons slidingly inserted into the cylinder block in parallel to the shaft, and a swash plate swingably mounted to the casing to have its surface guide the plurality of pistons in a circumferential direction and adapted to change strokes of the pistons by changing its inclination. The swash plate is formed at its rear surface with first and second abutting surfaces, which forms a predetermined angle between them, and the casing is formed with a swash plate bearing surface which is perpendicular to the shaft and with which the first and second abutting surfaces contact. The casing is provided with a swash plate angle changing piston. The swash plate is swung by a resultant force of thrusts of the pistons directed toward the swash plate to a large swash plate angle position, at which the first abutting surface contacts with the swash plate bearing surface, and by a thrust of the swash plate angle changing piston to a small swash plate angle position, at which the second abutting surface contacts with the swash plate bearing surface. The center, about which the swash plate swings, is nearer to the front surface of the swash plate than to the rear surface thereof.
摘要翻译：一种用于旋转斜盘式活塞泵电动机的斜盘角度改变装置，包括设置在可与轴一起旋转的壳体（1）中的气缸体，与轴平行滑动地插入气缸体中的多个活塞和斜盘板可摆动地安装到壳体上以使其表面在圆周方向上引导多个活塞，并且适于通过改变其倾角来改变活塞的冲程。斜板在其后表面上形成有第一和第二邻接表面，它们在它们之间形成预定的角度，并且壳体形成有与轴垂直的斜盘支承表面，第一和第二邻接表面联系。壳体设有斜盘角度更换活塞。旋转斜盘由朝向斜盘的活塞的推力的合力摆动到第一邻接表面与斜盘支承表面接触的大的斜盘角度位置，并且通过旋转斜盘角度的推力将活塞改变成小的斜盘角度位置，在该位置处第二邻接表面与斜盘支承表面接触。旋转斜盘摆动的中心比旋转斜盘的后表面更靠近斜盘的前表面。

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