JPS5859978U

JPS5859978U - Oblique axis type axial piston pump/motor

Info

Publication number: JPS5859978U
Application number: JP15445981U
Authority: JP
Inventors: 杉岡　勲; 杉田　伸; 小林　靖夫
Original assignee: 株式会社日本製鋼所
Priority date: 1981-10-16
Filing date: 1981-10-16
Publication date: 1983-04-22

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来の斜軸式アキシャルピストンポンプ・モー
タの一例を示す縦断面図、第２図は本考案の斜軸式アキ
シャルピストンポンプ１モータの一実施例を示す縦断面
図、第３図ａは第２図のＡ方向矢視部分図、第３図すは
ドライブシャフトとリテーナとの固定構造の第１例を示
す要部の断面図、第４図ａ、　　ｂはそれぞれ同じくそ
め第２例を示す要部の断面図及びその側面図、第５図ａ
は同　−しくその第３例を適用した場合の実施例の一部
の縦断面図、第５図すは第５図ａのＢ方向矢視部分図で
ある。１・・・・・・ドライブシャフト、１ａ・・・・・・中
心軸部、２・・・・・・ケーシング、４・・・・・・シ
リンダブロック、５・・・・・・センターシャフト、６
・・・・・・コネクティングロッド、６ａ・・・・・・
一端球部、６ｂ・・・・・・他端球部、６Ｃ・・・・・
・ロッド部、７・・・・・・ピストン、７ａ・・・・・
・床底穴、８・・・・・・ボア、９・・・・・・バルブ
プレート、１０・・・・・・リテーナ、１０ａ・・・・
・・嵌挿孔、１１・・・・・・ボールシート、ｌｌａ・
・・・・・床底穴、１１ｂ・・・・・・ツバ部、１１ｃ
・・・・・・かしめ部、１２・・・・・・ピン孔、１３
・・・・・・ピン、１４・・・・・・ネジ、１５．１６
・・・・・・係止溝、１７・・・・・・クリップ、１８
・・・・・・皿ばね、１９・・・・・・Ｃ形止め輪。Fig. 1 is a longitudinal sectional view showing an example of a conventional oblique axis type axial piston pump/motor, Fig. 2 is a longitudinal sectional view showing an embodiment of the oblique axis type axial piston pump 1 motor of the present invention, and Fig. 3 a is a partial view in the direction of arrow A in Fig. 2, Fig. 3 is a sectional view of the main part showing a first example of the fixing structure between the drive shaft and the retainer, and Figs. A sectional view of the main part and its side view showing an example, Fig. 5a
FIG. 5 is a longitudinal sectional view of a part of the embodiment in which the third example is applied, and FIG. 5 is a partial view taken in the direction of arrow B in FIG. 5a. DESCRIPTION OF SYMBOLS 1... Drive shaft, 1a... Center shaft part, 2... Casing, 4... Cylinder block, 5... Center shaft, 6
...Connecting rod, 6a...
One end ball part, 6b...Other end ball part, 6C...
・Rod part, 7... Piston, 7a...
・Bottom hole, 8...bore, 9...valve plate, 10...retainer, 10a...
...Insertion hole, 11... Ball seat, lla.
...Bottom hole, 11b...Brim part, 11c
・・・・・・Caulking part, 12 ・・・・Pin hole, 13
...Pin, 14 ...Screw, 15.16
...Latching groove, 17...Clip, 18
... Disc spring, 19 ... C-type retaining ring.

Claims

[Scope of utility model registration request]

(1) A cylinder block is arranged at an angle with respect to the drive shaft, and one end ball part of a plurality of connecting rods arranged around the axis is fitted and connected to the shaft end of the drive shaft so as to be able to swing freely. In a diagonal shaft type axial bis-ton pump motor in which the other end of the connecting rod is pivotally fitted and connected to a piston or sleeve that is slidably fitted into a plurality of bores in a cylinder block. , fitting one end spherical portion of each of the connecting rods into a bottom hole of a ball seat having a bottom hole and a flange portion respectively enclosing the one end spherical portion;
The ball at one end of each connecting rod and each ball seat are pivotally connected to each other by a caulked part at the opening edge of the bottom hole, and each ball seat is arranged around the axis of the retainer. A diagonal shaft type axial piston pump/motor in which the ball seats are fitted into respective fitting holes, the flanges of each ball seat are respectively locked to the edges of the fitting holes, and this retainer is fixed to the end of a drive shaft.

(2) To fix the drive shaft and the retainer, a pin hole is provided in the drive shaft and the retainer, and a pin for transmitting rotation is inserted into the pin hole. The oblique shaft type axial piston pump according to claim 1 of the utility model registration claim, which has a structure that is screwed by a receiving screw.
motor.

(3) To fix the drive shaft retainer, a pin hole is provided in the drive shaft and the retainer, and a pin for transmitting rotation is inserted into the pin hole, and the flange portion of the drive shaft and the peripheral portion of the retainer are engaged with each other. The oblique shaft type axial piston pump/motor according to claim 1, which is registered as a utility model and has a structure in which a clip that receives a tensile force acting on the retainer is engaged between the stop grooves.

(4) To fix the drive shaft and retainer, provide a pin hole in the drive shaft and retainer, insert a pin for rotation transmission into this pin hole, and attach the retainer to the stepped part of the center shaft of the drive shaft. The oblique shaft type axial piston pump/motor according to claim 1, which is registered as a utility model and has a structure in which a C-shaped retaining ring that receives a tensile force acting on the retainer via a disc spring is fitted between the retainer and the retainer.