JPH0256868U - - Google Patents
Info
- Publication number
- JPH0256868U JPH0256868U JP13500888U JP13500888U JPH0256868U JP H0256868 U JPH0256868 U JP H0256868U JP 13500888 U JP13500888 U JP 13500888U JP 13500888 U JP13500888 U JP 13500888U JP H0256868 U JPH0256868 U JP H0256868U
- Authority
- JP
- Japan
- Prior art keywords
- ball screw
- motor
- displacement
- control device
- screw shaft
- 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
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims 1
- 238000003825 pressing Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Reciprocating Pumps (AREA)
- Hydraulic Motors (AREA)
Description
第１図は本考案に係る一実施例の斜板型ピスト
ンポンプ・モータの容量制御装置の平断面図、第
２図は第１図の―矢視縦断面図、第３図は本
考案の別の実施例における第１図の相当部の拡
大図、第４図は従来の斜板型ピストンポンペ・モ
ータの容量制御装置の側断面図、第５図は第４図
の―矢視平断面図、第６図は第４図の―
矢視平断面図である。
１５……斜板、２３……アクチユエータピスト
ン、２９……アクチユエータピストン、３０……
ケース、３１ａ……ボールネジナツト、３１ｂ…
…ボールネジシヤフト、３２……回わり止め部材
、３５……ステツプモータ、３６……シヤフト（
ステツプモータの）、３７……検出棒、３８……
変位検出用コイル、３９……カバー。
Fig. 1 is a plan sectional view of a displacement control device for a swash plate type piston pump/motor according to an embodiment of the present invention, Fig. 2 is a longitudinal sectional view taken in the direction of - arrow of Fig. FIG. 4 is a side cross-sectional view of a conventional displacement control device for a swash plate type piston pump motor, and FIG. 5 is a cross-sectional view of FIG. Figure 6 is the same as Figure 4.
FIG. 15... Swash plate, 23... Actuator piston, 29... Actuator piston, 30...
Case, 31a...Ball screw nut, 31b...
... Ball screw shaft, 32 ... Rotation prevention member, 35 ... Step motor, 36 ... Shaft (
step motor), 37... detection rod, 38...
Displacement detection coil, 39...cover.
Claims (1)
を変位させ、同変位に斜板を応動させて容量制御
を行なう可変容量型ピストンポンプ・モータの容
量制御装置において、回転によつて上記アクチユ
エータピストンを変位可能に設けられた少なくと
も１組のボールネジシヤフト及びボールネジナツ
トと、同ボールネジシヤフト及びボールネジナツ
トの何れかを外部からの電気信号によつて回転駆
動する電動モータとを具備してなることを特徴と
する可変容量型ピストンポンプ・モータの容量制
御装置。 In a displacement control device for a variable displacement piston pump/motor that displaces an actuator piston by applying pressure fluid and controls a swash plate in response to the displacement, the actuator piston is moved by rotation. It is characterized by comprising at least one set of a displaceably displaceable ball screw shaft and a ball screw nut, and an electric motor that rotationally drives either the ball screw shaft or the ball screw nut by an electric signal from the outside. Capacity control device for variable displacement piston pump/motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13500888U JPH0256868U (en) | 1988-10-18 | 1988-10-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13500888U JPH0256868U (en) | 1988-10-18 | 1988-10-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0256868U true JPH0256868U (en) | 1990-04-24 |
Family
ID=31394264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13500888U Pending JPH0256868U (en) | 1988-10-18 | 1988-10-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0256868U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023181517A1 (en) * | 2022-03-23 | 2023-09-28 | 川崎重工業株式会社 | Hydraulic rotary machine and hydraulic pump |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5347601U (en) * | 1971-06-07 | 1978-04-22 | ||
| JPS615382B2 (en) * | 1983-07-06 | 1986-02-18 | Marutomo Kk |
-
1988
- 1988-10-18 JP JP13500888U patent/JPH0256868U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5347601U (en) * | 1971-06-07 | 1978-04-22 | ||
| JPS615382B2 (en) * | 1983-07-06 | 1986-02-18 | Marutomo Kk |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023181517A1 (en) * | 2022-03-23 | 2023-09-28 | 川崎重工業株式会社 | Hydraulic rotary machine and hydraulic pump |