JPS63156478U - - Google Patents
Info
- Publication number
- JPS63156478U JPS63156478U JP4698687U JP4698687U JPS63156478U JP S63156478 U JPS63156478 U JP S63156478U JP 4698687 U JP4698687 U JP 4698687U JP 4698687 U JP4698687 U JP 4698687U JP S63156478 U JPS63156478 U JP S63156478U
- Authority
- JP
- Japan
- Prior art keywords
- spool
- swash plate
- servo piston
- servo
- motor
- 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.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 claims description 7
- 230000008713 feedback mechanism Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
Landscapes
- Reciprocating Pumps (AREA)
- Hydraulic Motors (AREA)
Description
第１図は本考案に係る容量制御装置を備えた可
変液圧ポンプ・モータの縦断面図、第２図は第１
図方向からの矢視図、第３図は第１図方向か
らの矢視図、第４図はフイードバツク機構の分解
斜視図、第５図は可変液圧モータにおけるサーボ
ピストン機構の説明図、第６図は従来の容量制御
装置を備えた可変液圧ポンプ・モータの縦断面図
である。
１５は斜板、３３はサーボピストン、３７はサ
ーボバルブ機構、３８はフイードバツク機構、４
９はパイロツトスプール、５３はフイードバツク
レバー、Ｂはサーボピストン機構。
Fig. 1 is a vertical sectional view of a variable hydraulic pump/motor equipped with a capacity control device according to the present invention, and Fig.
3 is a view as viewed from the direction of FIG. 1, FIG. 4 is an exploded perspective view of the feedback mechanism, FIG. 5 is an explanatory diagram of the servo piston mechanism in the variable hydraulic motor, FIG. 6 is a longitudinal sectional view of a variable hydraulic pump/motor equipped with a conventional displacement control device. 15 is a swash plate, 33 is a servo piston, 37 is a servo valve mechanism, 38 is a feedback mechanism, 4
9 is a pilot spool, 53 is a feedback lever, and B is a servo piston mechanism.
Claims (1)
板と、サーボピストン用シリンダへの圧油の供給
によりサーボピストンの押圧力を前記斜板の背面
に作用させて斜板の揺動を行う少くとも一対のサ
ーボピストン機構と、入力手段の入力の選択によ
りパイロツトスプールを移動してポンプ・モータ
の高圧側の圧油をサーボピストン機構のいずれか
一方に選択供給するサーボバルブ機構と、サーボ
バルブ機構のパイロツトスプールと同一軸線上に
スプールを移動可能に配置すると共にこのスプー
ルとパイロツトスプールとの間にスプリングを設
け前記斜板にフイードバツクレバーを固着しこの
フイードバツクレバーと前記スプールとを上下方
向及び左右方向に移動自在に連結したフイードバ
ツク機構とを備えたことを特徴とする可変液圧ポ
ンプ・モータの容量制御装置。 A swash plate that swings around a swing fulcrum to change the capacity, and pressure oil is supplied to the servo piston cylinder to apply the pressing force of the servo piston to the back of the swash plate, causing the swash plate to swing. at least a pair of servo piston mechanisms, a servo valve mechanism that selectively supplies pressurized oil on the high pressure side of the pump/motor to either one of the servo piston mechanisms by moving a pilot spool according to selection of input from the input means; A spool is movably disposed on the same axis as the pilot spool of the valve mechanism, and a spring is provided between the spool and the pilot spool, and a feedback lever is fixed to the swash plate, and the feedback lever and the spool are connected to each other. A capacity control device for a variable hydraulic pump/motor, comprising: a feedback mechanism in which the pumps are movably connected in the vertical and horizontal directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987046986U JPH077586Y2 (en) | 1987-03-31 | 1987-03-31 | Variable hydraulic pump / motor capacity controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987046986U JPH077586Y2 (en) | 1987-03-31 | 1987-03-31 | Variable hydraulic pump / motor capacity controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63156478U true JPS63156478U (en) | 1988-10-13 |
| JPH077586Y2 JPH077586Y2 (en) | 1995-02-22 |
Family
ID=30867163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987046986U Expired - Lifetime JPH077586Y2 (en) | 1987-03-31 | 1987-03-31 | Variable hydraulic pump / motor capacity controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH077586Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5954782A (en) * | 1982-08-23 | 1984-03-29 | サンドストランド・コ−ポレ−シヨン | Controller for compensation of deceleration for variable positive-displacement pump |
| JPS5994165U (en) * | 1982-12-16 | 1984-06-26 | 株式会社京浜精機製作所 | Electrically controlled fuel injection system |
-
1987
- 1987-03-31 JP JP1987046986U patent/JPH077586Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5954782A (en) * | 1982-08-23 | 1984-03-29 | サンドストランド・コ−ポレ−シヨン | Controller for compensation of deceleration for variable positive-displacement pump |
| JPS5994165U (en) * | 1982-12-16 | 1984-06-26 | 株式会社京浜精機製作所 | Electrically controlled fuel injection system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH077586Y2 (en) | 1995-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS63186587U (en) | ||
| GB2333579A (en) | Displacement control device with servo assisted manual operation | |
| JPS63156478U (en) | ||
| JPH0351201U (en) | ||
| JPS63190575U (en) | ||
| JPS61114076U (en) | ||
| JPH0173502U (en) | ||
| JPS62169268U (en) | ||
| JPH0310078U (en) | ||
| JPH0369507U (en) | ||
| JPS5928148Y2 (en) | Variable pump regulator | |
| JPH0218661U (en) | ||
| JPH01125869U (en) | ||
| JPH01148963U (en) | ||
| JPS59160904U (en) | Hydraulic cylinder device with shock absorbing mechanism | |
| JPS63160482U (en) | ||
| JPH072653Y2 (en) | Braking device for hydraulically driven compaction machine | |
| JPS63186977U (en) | ||
| JPH0343163U (en) | ||
| JPS62181702U (en) | ||
| JPH0349386U (en) | ||
| JPS62169269U (en) | ||
| JPH0483957U (en) | ||
| JPS61168303U (en) | ||
| JPH03113767U (en) |