JPS6197592U

JPS6197592U -

Info

Publication number: JPS6197592U
Application number: JP18271184U
Authority: JP
Priority date: 1984-11-30
Filing date: 1984-11-30
Publication date: 1986-06-23

Description

[Brief explanation of the drawing]

第１図〜第８図は本考案の一実施例を示す。第
１図はピストンポンプまたはモータの縦断面図、
第２図はその要部拡大断面図である。第３図は第
１図の−線断面図である。第４図は第１図に
おける−線断面図、第５図は第１図における
−線に沿う部分断面図である。第６図、第７
図および第８図は第１領域における圧力バランス
状態を説明するための作用説明図である。第９図
は比較例を示すピストンポンプまたはモータの縦
断面図である。１…ケーシング、４…回転軸、６…トルクプレ
ート、９…シリンダブロツク、１１…バルブ面、
１２…ポンプ室、１３…シリンダ穴、１４…ピス
トン、１７…ピストンの球面端部、１８…トルク
プレートの球面受座、２４，２５…接続ポート（
圧力ポケツト）、３７，３９…係着面、３５…バ
ネ。 1 to 8 show an embodiment of the present invention. Figure 1 is a longitudinal sectional view of a piston pump or motor;
FIG. 2 is an enlarged sectional view of the main part. FIG. 3 is a sectional view taken along the line -- in FIG. 1. 4 is a sectional view taken along the - line in FIG. 1, and FIG. 5 is a partial sectional view taken along the - line in FIG. 1. Figures 6 and 7
FIG. 8 and FIG. 8 are operation explanatory diagrams for explaining the pressure balance state in the first region. FIG. 9 is a longitudinal sectional view of a piston pump or motor showing a comparative example. 1... Casing, 4... Rotating shaft, 6... Torque plate, 9... Cylinder block, 11... Valve surface,
12... Pump chamber, 13... Cylinder hole, 14... Piston, 17... Spherical end of piston, 18... Spherical seat of torque plate, 24, 25... Connection port (
pressure pocket), 37, 39...clutching surface, 35...spring.

Claims

[Claims for Utility Model Registration] (1) A casing having an inlet/outlet port, an input/output rotating shaft supported by the casing, a torque plate rotatably provided on the rotating shaft, and the A cylinder block that is rotatably provided around an inclined axis that intersects with the rotation center of the torque plate and has a plurality of cylinder holes opened toward the torque plate parallel to the inclined axis, and each cylinder hole of this cylinder block a plurality of pistons that are slidably fitted and whose spherical ends on the side opposite to the cylinder block are rotatably fitted in spherical seats provided on the torque plate; and A piston pump or motor comprising: a valve face provided in a casing to be attached to an end face and having a connection port for connecting the inflow/outflow port and each cylinder hole, the piston pump or motor comprising: a spring that biases the torque toward the torque plate;
A piston pump or motor, characterized in that at least one end of the piston is engaged with a spherical end of the piston. (2) A compression spring is used as the spring, and the compression spring is interposed between the engagement surface formed on the cylinder block side of the spherical end of the piston and the engagement surface formed on the torque plate side of the cylinder block. A piston pump or motor according to claim 1, characterized in that the piston pump or motor is characterized in that: