JPS6436574U - - Google Patents
Info
- Publication number
- JPS6436574U JPS6436574U JP13120887U JP13120887U JPS6436574U JP S6436574 U JPS6436574 U JP S6436574U JP 13120887 U JP13120887 U JP 13120887U JP 13120887 U JP13120887 U JP 13120887U JP S6436574 U JPS6436574 U JP S6436574U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- drive shaft
- cylinder block
- swash plate
- plate type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims 3
- 238000007599 discharging Methods 0.000 claims 1
Landscapes
- Reciprocating Pumps (AREA)
- Hydraulic Motors (AREA)
Description
第1図は本考案の第1実施例を示す概略断面図
、第2図は第1図の―断面図、第3図は第2
図の―断面図、第4図は従来技術によるピス
トンポンプモータの概略断面図、第5,6図はそ
れぞれ本考案の第2、第3実施例の概略断面図、
第7図は本考案の第4実施例を示す部分断面図で
ある。
2……ハウジング、4……斜板、6……シリン
ダブロツク、8……ピストン、10……ピストン
孔、12……ポートプレート、14……駆動軸、
16,18……軸受、20……蓋、33……シー
ル部材。
Fig. 1 is a schematic cross-sectional view showing the first embodiment of the present invention, Fig. 2 is a cross-sectional view of Fig. 1, and Fig. 3 is a cross-sectional view of the second embodiment of the present invention.
4 is a schematic sectional view of a piston pump motor according to the prior art, and FIGS. 5 and 6 are schematic sectional views of second and third embodiments of the present invention, respectively.
FIG. 7 is a partial sectional view showing a fourth embodiment of the present invention. 2... Housing, 4... Swash plate, 6... Cylinder block, 8... Piston, 10... Piston hole, 12... Port plate, 14... Drive shaft,
16, 18... Bearing, 20... Lid, 33... Seal member.
Claims (1)
駆動軸の駆動端を貫装するハウジングと、ピスト
ンと、駆動軸と共に回転し軸心に沿いピストンを
摺動自在に内挿しその直径を減縮することなく穿
設した複数のピストン孔を有するシリンダブロツ
クと、ピストンを傾斜面に沿つて往復動させる斜
板と、ピストンの往復動に応じピストン孔に圧油
を給排する1対の三日月形ポートを形成したポー
トプレートと、ハウジングの他側端部を閉鎖し駆
動軸の他端を軸受を介して支承する蓋よりなる斜
板式ピストンポンプ・モータにおいて、駆動軸と
シリンダブロツクを一体的に形成し、シリンダブ
ロツクと摺接する一側に三日月形ポートを形成し
たポートプレートの他側にこれと類似の形状でシ
ール領域が一側より大きいシール部材を挿入する
凹溝を設け、シール部材を構成する弾性シール部
材の弾圧力と前記一・他側のシール領域の面積差
に作用する圧油の力とでポートプレートをシリン
ダブロツクに摺接させたことを特徴とする斜板式
ピストンポンプ・モータ。 (2) シリンダブロツクとポートプレートとの摺
接面を球面とした実用新案登録請求の範囲第1項
記載の斜板式ピストンポンプ・モータ。 (3) ピストン孔の軸心がシリンダブロツクのポ
ートプレート側駆動軸々線上に頂点を持つ円錐の
母線上に配置されてなる実用新案登録請求の範囲
第1項または第2項記載の斜板式ピストンポンプ
・モータ。 (4) シール部材を挿入する凹溝を蓋に設けた実
用新案登録請求の範囲第1項、第2項または第3
項記載の斜板式ピストンポンプ・モータ。[Claims for Utility Model Registration] (1) A housing that grips a bearing that supports a drive shaft at one end and that penetrates the drive end of the drive shaft, a piston, and a piston that rotates together with the drive shaft and extends along the axis. a cylinder block having a plurality of piston holes in which the piston is slidably inserted without reducing its diameter; a swash plate that allows the piston to reciprocate along an inclined surface; In a swash plate type piston pump/motor consisting of a port plate forming a pair of crescent-shaped ports for supplying and discharging pressure oil, and a lid that closes the other end of the housing and supports the other end of the drive shaft via a bearing. , the drive shaft and cylinder block are integrally formed, a crescent-shaped port is formed on one side that slides into the cylinder block, and a sealing member with a similar shape and a larger sealing area than the one side is inserted on the other side of the port plate. The port plate is brought into sliding contact with the cylinder block using the elastic force of the elastic seal member constituting the seal member and the force of the pressure oil acting on the difference in area between the seal areas on the one side and the other side. Features a swash plate type piston pump motor. (2) The swash plate type piston pump/motor according to claim 1, wherein the sliding surface between the cylinder block and the port plate is spherical. (3) The swash plate type piston according to claim 1 or 2, wherein the axial center of the piston hole is arranged on the generatrix of a cone having its apex on the drive shaft line on the port plate side of the cylinder block. pump motor. (4) Claims 1, 2 or 3 for utility model registration in which the lid is provided with a groove into which a sealing member is inserted.
The swash plate type piston pump/motor described in .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13120887U JPS6436574U (en) | 1987-08-28 | 1987-08-28 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13120887U JPS6436574U (en) | 1987-08-28 | 1987-08-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6436574U true JPS6436574U (en) | 1989-03-06 |
Family
ID=31387058
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13120887U Pending JPS6436574U (en) | 1987-08-28 | 1987-08-28 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6436574U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112983730A (en) * | 2021-03-05 | 2021-06-18 | 江苏真绩机械制造有限公司 | Integral output shaft hydraulic motor |
-
1987
- 1987-08-28 JP JP13120887U patent/JPS6436574U/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112983730A (en) * | 2021-03-05 | 2021-06-18 | 江苏真绩机械制造有限公司 | Integral output shaft hydraulic motor |
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