JPS59194693U - Hydraulic switching valve for central lubrication system - Google Patents
Hydraulic switching valve for central lubrication systemInfo
- Publication number
- JPS59194693U JPS59194693U JP8968083U JP8968083U JPS59194693U JP S59194693 U JPS59194693 U JP S59194693U JP 8968083 U JP8968083 U JP 8968083U JP 8968083 U JP8968083 U JP 8968083U JP S59194693 U JPS59194693 U JP S59194693U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- pilot piston
- lubrication system
- pressure
- switching valve
- 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
Landscapes
- Fluid-Driven Valves (AREA)
- Multiple-Way Valves (AREA)
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
第１図は本考案の一実施例の断面図、第２図は同潤滑ラ
インシステムの説明図、第３図、第４図・は信実施例の
説明図、第５図は従来例を示す説明図である。
１・・・油圧切換弁、４・・・ポンプ連絡口、５．６・
・・主管接続口、７・・・メインピストン、８・・・第
１パイロツトピストン、９・・・第２パイロツトピスト
ン、１０・・・リリーフ弁、１５・・・ディテント機構
、１７ 、・・・連絡路。Figure 1 is a sectional view of an embodiment of the present invention, Figure 2 is an explanatory diagram of the same lubrication line system, Figures 3 and 4 are explanatory diagrams of an embodiment of the invention, and Figure 5 is a conventional example. It is an explanatory diagram. 1... Hydraulic switching valve, 4... Pump connection port, 5.6.
... Main pipe connection port, 7... Main piston, 8... First pilot piston, 9... Second pilot piston, 10... Relief valve, 15... Detent mechanism, 17,... communication route.
Claims (1)
切換えを行うメインピストン７と、５該メインピストン
７の両端と前記ポンプ連絡口４との間の方向切換えを行
う第１パイロツトピストン８とを備え、前記第１パイロ
ツトピストン８に位置保持機構１５を設けた集中潤滑装
置用油圧切換弁において、回路圧が作用する連絡路１７
を設けて、該連絡路１７と前記第１パイロツトビス上ン
８の両端との間の方向切換えを行う第２パイロツトピス
トン９を設けると共に、前記第２パイロツトピストン９
の両端に前記メインピストン７の切換動作により、回路
圧を選択的に作用させて前記第２パイロツトピストン９
を切換動作させ、前記連絡路１７を、第１パイロツトピ
ストン９の一端に選択的に連通させる如く成す一方、前
記連絡路１７に減圧機構１０を介装し、前記回路圧を前
記減圧機構１０で減圧して、その減圧圧力を前記第１パ
イロツトピストン８の一端に作用させる如くしたことを
特徴とする集中潤滑装置用油圧切換弁。a main piston 7 for switching direction between the pump connection port 4 and the two main pipe connection ports 5, 6; In the hydraulic switching valve for a centralized lubrication system, which is equipped with a pilot piston 8 and a position holding mechanism 15 is provided on the first pilot piston 8, a communication path 17 on which circuit pressure acts.
A second pilot piston 9 is provided for switching the direction between the communication passage 17 and both ends of the first pilot screw upper pin 8.
By switching operation of the main piston 7, circuit pressure is selectively applied to both ends of the second pilot piston 9.
The communication passage 17 is selectively communicated with one end of the first pilot piston 9 by switching the communication passage 17, and a pressure reduction mechanism 10 is interposed in the communication passage 17, and the circuit pressure is transferred to the pressure reduction mechanism 10. A hydraulic switching valve for a central lubrication system, characterized in that the pressure is reduced and the reduced pressure is applied to one end of the first pilot piston 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8968083U JPS59194693U (en) | 1983-06-10 | 1983-06-10 | Hydraulic switching valve for central lubrication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8968083U JPS59194693U (en) | 1983-06-10 | 1983-06-10 | Hydraulic switching valve for central lubrication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59194693U true JPS59194693U (en) | 1984-12-24 |
| JPS6222716Y2 JPS6222716Y2 (en) | 1987-06-09 |
Family
ID=30219571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8968083U Granted JPS59194693U (en) | 1983-06-10 | 1983-06-10 | Hydraulic switching valve for central lubrication system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59194693U (en) |
-
1983
- 1983-06-10 JP JP8968083U patent/JPS59194693U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6222716Y2 (en) | 1987-06-09 |
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