JPS6216775U

JPS6216775U -

Info

Publication number: JPS6216775U
Application number: JP9828386U
Authority: JP
Priority date: 1986-06-25
Filing date: 1986-06-25
Publication date: 1987-01-31

Description

[Brief explanation of the drawing]

第１図は本考案装置の一実施例の断面図、第２
図はその性能曲線図、第３図は本考案装置の他の
実施例の要部の断面図、第４図は本考案装置のさ
らに他の実施例の断面図、第５図および第６図は
いずれも従来装置のそれぞれ異なる破断面におけ
る断面図、第７図はその使用部材の平面図、第８
図は第５図中の要部の作用を説明するための断面
図である。１……ポンプ駆動軸、２……ケーシング、３…
…軸心、４……シリンダブロツク、５……ピスト
ン室、６……ピストン、７……フランジ、８……
ロツド、９，９′……シリンダブロツク軸心、１
０……弁板、１１，１２……吸入溝、１２，２２
……吐出溝、１３……開口、１４……斜板、１５
……ケーシングカバー、１６……摺動案内面、１
７……傾動ピストン、１８……ピン、１９……吸
入路、２０……吐出路、２３，２５……仕切壁、
２３ａ……端部、２４……張出部。 Fig. 1 is a sectional view of one embodiment of the device of the present invention;
The figure shows its performance curve, Figure 3 is a sectional view of the main parts of another embodiment of the device of the present invention, Figure 4 is a sectional view of still another embodiment of the device of the present invention, and Figures 5 and 6. are sectional views of the conventional device at different fracture surfaces, FIG. 7 is a plan view of the parts used, and FIG.
This figure is a sectional view for explaining the operation of the main parts in FIG. 5. 1...Pump drive shaft, 2...Casing, 3...
...Axis center, 4...Cylinder block, 5...Piston chamber, 6...Piston, 7...Flange, 8...
Rod, 9, 9'...Cylinder block axis, 1
0... Valve plate, 11, 12... Suction groove, 12, 22
...Discharge groove, 13...Opening, 14...Swash plate, 15
...Casing cover, 16...Sliding guideway, 1
7... Tilting piston, 18... Pin, 19... Suction path, 20... Discharge path, 23, 25... Partition wall,
23a... end, 24... overhang.

補正昭６１．７．２５実用新案登録請求の範囲を次のように補正する
。Amendment July 25, 1980 The scope of claims for utility model registration is amended as follows.

【実用新案登録請求の範囲】ケーシングに回転可能に支持された駆動軸と、
一端を駆動軸のフランジ部に球面接手により連結
され、他端をシリンダブロツクのピストン室に摺
動可能に挿入された複数のピストンと、シリンダ
ブロツクの回転に応じて流体の吸入・吐出の切換
を行う弁板と、流体の吸入路および吐出路を備え
、且つ内側面に駆動軸の軸心とシリンダブロツク
の軸心との交点を中心とする円筒状または球状の
摺動案内面を形成したケーシングカバーと、前記
の弁板を一体的に保持し、外側面に前記のケーシ
ングカバーの案内面に対接する円筒状もしくは球
状の摺動面を形成した斜板と、斜板に連結されシ
リンダブロツクの傾角を変えることによりポンプ
の吐出量を制御する手段とを備える斜軸ピストン
ポンプにおいて、ケーシングカバーの吸入路にシ
リンダブロツクの傾角が最大のとき当該吸入路の
断面積を斜板の吸入溝入口の開口面積と等しくす
る仕切壁を設けたことを特徴とする斜軸ピストン
ポンプ。[Claims for Utility Model Registration] A drive shaft rotatably supported by a casing;
A plurality of pistons, one end of which is connected to the flange of the drive shaft by a spherical hand and the other end slidably inserted into the piston chamber of the cylinder block, switch between suction and discharge of fluid according to the rotation of the cylinder block. A casing that is equipped with a valve plate, a fluid intake passage and a discharge passage, and has a cylindrical or spherical sliding guide surface centered on the intersection of the axis of the drive shaft and the axis of the cylinder block on its inner surface. A swash plate that integrally holds the cover and the valve plate and has a cylindrical or spherical sliding surface on its outer surface that contacts the guide surface of the casing cover, and a swash plate that is connected to the swash plate and that is connected to the cylinder block. In a diagonal piston pump equipped with a means for controlling the discharge amount of the pump by changing the inclination angle, when the inclination angle of the cylinder block is maximum in the suction path of the casing cover, the cross-sectional area of the suction path is equal to that of the inlet of the suction groove of the swash plate. A diagonal shaft piston pump characterized by having a partition wall having an opening area equal to the opening area .

Claims

[Scope of utility model registration request]

In a diagonal piston pump, a swash plate or a valve plate that supports the hydraulic pressure acting from the valve plate in contact with the outer surface of the valve plate that switches between sucking and discharging fluid according to the rotation of the cylinder block. The member in which the plates are integrated is formed as a cylindrical side surface centered at the intersection of the inclination of the cylinder block axis with respect to the axis of the pump drive shaft, or a point a certain distance from the intersection, or a spherical surface centered at the point. A casing cover that forms a sliding guide surface in a device that tilts the axis of a cylinder block with respect to the axis of a pump drive shaft by sliding in contact on the sliding guide surface formed by the pump, thereby making the pump discharge amount variable. A partition wall for restricting the flow path of the suction fluid is provided in the fluid suction path provided inside the swash plate, and the position of the end of the partition wall on the side where the partition wall is in contact with the suction groove provided in the swash plate. , when the cylinder block axis is tilted to the angle that maximizes the pump discharge amount, the difference in the area of the flow path where the fluid restricted by the partition wall flows from the suction path to the suction groove. A tilted shaft piston pump characterized by having a position and shape that minimizes the