JPH02114776U - - Google Patents
Info
- Publication number
- JPH02114776U JPH02114776U JP2253089U JP2253089U JPH02114776U JP H02114776 U JPH02114776 U JP H02114776U JP 2253089 U JP2253089 U JP 2253089U JP 2253089 U JP2253089 U JP 2253089U JP H02114776 U JPH02114776 U JP H02114776U
- Authority
- JP
- Japan
- Prior art keywords
- swash plate
- piston machine
- axial piston
- extrusion rod
- tail portion
- 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
- 238000001125 extrusion Methods 0.000 claims description 4
- 230000007935 neutral effect Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Reciprocating Pumps (AREA)
Description
第１図は本考案に係るアキシヤルピストン機械
を含む油圧変速装置を搭載した芝刈機の平面図、
第２図はアキシヤルピストン機械を含む油圧変速
装置の断面図、第３図は斜板振れ止め機構を示す
第２図の要部拡大図、第４図は坂道斜度と油路圧
力の関係図、第５図は別実施例に係る斜板振れ止
め機構を示す図、第６図はアキシヤルピストン機
械を含む従来の油圧変速装置図、第７図は第６図
のＡ−Ａ矢視図、第８図は第６図のＢ−Ｂ矢視図
。
２０…油圧ポンプ、２４…斜板、７０，８０…
斜板振れ止め機構、７１，８１…押出しロツド、
８１ａ…尾部、８３…圧油室。
FIG. 1 is a plan view of a lawn mower equipped with a hydraulic transmission including an axial piston machine according to the present invention;
Figure 2 is a cross-sectional view of a hydraulic transmission including an axial piston machine, Figure 3 is an enlarged view of the main parts of Figure 2 showing the swash plate steadying mechanism, and Figure 4 is the relationship between slope slope and hydraulic pressure. 5 is a diagram showing a swash plate steady rest mechanism according to another embodiment, FIG. 6 is a diagram of a conventional hydraulic transmission including an axial piston machine, and FIG. 7 is a view taken along arrow A-A in FIG. 6. 8 is a view taken along the line B--B in FIG. 6. 20... Hydraulic pump, 24... Swash plate, 70, 80...
Swash plate steady rest mechanism, 71, 81...extrusion rod,
81a...tail part, 83...pressure oil chamber.
Claims (1)
を基板に回動自在に軸支し、前記ピストンの頭を
斜板に接触させてなるアキシヤルピストン機械に
おいて、 前記アキシヤルピストン機械にはその斜板に当
接して、該斜板をニユートラル方向へ押出す斜板
振れ止め機構を備えたことを特徴とするアキシヤ
ルピストン機械。 (2) 前記斜板振れ止め機構は、基板を貫通する
とともに回転軸に平行に配設した押出しロツドと
、該押出しロツドを斜板へ付勢するスプリングと
、前記押出しロツドの尾部を進退自在に収容し、
このロツドの尾部にチヤージポンプの吐出圧を受
圧せしめる圧油室とから構成したことを特徴とす
る請求項１記載のアキシヤルピストン機械。[Claims for Utility Model Registration] (1) In an axial piston machine, a cylinder block having a plurality of pistons is rotatably supported on a base plate, and the head of the piston is in contact with a swash plate, An axial piston machine characterized in that the piston machine is equipped with a swash plate steadying mechanism that comes into contact with the swash plate and pushes the swash plate in a neutral direction. (2) The swash plate steadying mechanism includes an extrusion rod that penetrates the base plate and is arranged parallel to the rotation axis, a spring that urges the extrusion rod toward the swash plate, and a tail portion of the extrusion rod that can move forward and backward. accommodate,
2. The axial piston machine according to claim 1, further comprising a pressure oil chamber in the tail portion of the rod for receiving the discharge pressure of the charge pump.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2253089U JPH02114776U (en) | 1989-02-28 | 1989-02-28 | |
| EP19890123024 EP0373616B1 (en) | 1988-12-13 | 1989-12-13 | Hydraulically operated power transmission apparatus |
| DE1989609193 DE68909193T2 (en) | 1988-12-13 | 1989-12-13 | Hydraulically operated transmission. |
| US07/450,263 US5230519A (en) | 1988-02-16 | 1989-12-13 | Hydraulically operated power transmission apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2253089U JPH02114776U (en) | 1989-02-28 | 1989-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02114776U true JPH02114776U (en) | 1990-09-13 |
Family
ID=31240730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2253089U Pending JPH02114776U (en) | 1988-02-16 | 1989-02-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02114776U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57171087A (en) * | 1981-04-13 | 1982-10-21 | Daikin Ind Ltd | Variable displacement type hydraulic pump |
| JPS59170480A (en) * | 1983-03-10 | 1984-09-26 | ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Axial plunger pump |
-
1989
- 1989-02-28 JP JP2253089U patent/JPH02114776U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57171087A (en) * | 1981-04-13 | 1982-10-21 | Daikin Ind Ltd | Variable displacement type hydraulic pump |
| JPS59170480A (en) * | 1983-03-10 | 1984-09-26 | ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Axial plunger pump |