JPS6256802U - - Google Patents
Info
- Publication number
- JPS6256802U JPS6256802U JP14956185U JP14956185U JPS6256802U JP S6256802 U JPS6256802 U JP S6256802U JP 14956185 U JP14956185 U JP 14956185U JP 14956185 U JP14956185 U JP 14956185U JP S6256802 U JPS6256802 U JP S6256802U
- Authority
- JP
- Japan
- Prior art keywords
- switching valve
- speed
- valve
- control device
- pilot signal
- 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
- 239000002131 composite material Substances 0.000 claims 3
- 230000007935 neutral effect Effects 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図本考案の一実施例を示す油圧回路図、第
２図は本考案を構成する絞り切換弁の断面概要図
、第３図は本考案を構成する絞り切換弁の他の実
施例を示す断面概要図である。
１，２，１０１，１０３…切換弁、２…１速用
合流切換弁、１０２…２速用合流切換弁、５，１
０５…絞り切換弁、６，１０６…ポンプ、８，１
０８…供給路、９…タンク。
Fig. 1 is a hydraulic circuit diagram showing one embodiment of the present invention, Fig. 2 is a cross-sectional schematic diagram of a throttle switching valve constituting the present invention, and Fig. 3 is a diagram showing another embodiment of the throttle switching valve constituting the present invention. FIG. 1, 2, 101, 103...Switching valve, 2...1st speed merging switching valve, 102...2nd speed merging switching valve, 5,1
05... Throttle switching valve, 6,106... Pump, 8,1
08... Supply path, 9... Tank.
Claims (1)
パイロツト信号で切り換えられる複数の切換弁よ
りなる複合制御弁複数組で構成し、一側および他
側複合制御弁に属し共通のアクチユエータを駆動
し対をなす１速および、２速用合流切換弁を含み
、２速用合流切換弁は１速用合流切換弁よりも高
いパイロツト信号圧で切換えられる油圧制御装置
において、 すべての切換弁は中立一で供給路を閉止し、２
速用合流切換弁以外の切換弁に作用するパイロツ
ト信号の最高圧力または２速用合流切換弁に作用
する信号の最高圧力に応じて開口を減じまたは閉
止する絞り切換弁を夫々の複合制御弁の供給路と
タンクとの間に設けてなる油圧制御装置。 (2) 絞り切換弁の開口の上・下流間の圧力差を
一定となす圧力補償機構を付加してなる実用新案
登録請求の範囲第１項記載の油圧制御装置。[Claims for Utility Model Registration] (1) A composite control valve consisting of multiple sets of switching valves connected to a supply line connected to an independent pump and switched by a pilot signal, and one side and the other side composite control valve. A hydraulic control device including a pair of 1st speed and 2nd speed merging switching valves that drive a common actuator, the 2nd speed merging switching valve being switched by a higher pilot signal pressure than the 1st speed merging switching valve, All switching valves close the supply path with neutral 1 and 2
A throttle switching valve that reduces or closes the opening in accordance with the maximum pressure of the pilot signal acting on the switching valves other than the speed merging switching valve or the maximum pressure of the signal acting on the 2nd speed merging switching valve is installed in each composite control valve. A hydraulic control device installed between the supply path and the tank. (2) The hydraulic control device according to claim 1, which is additionally provided with a pressure compensation mechanism that maintains a constant pressure difference between the upstream and downstream openings of the throttle switching valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14956185U JPS6256802U (en) | 1985-09-30 | 1985-09-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14956185U JPS6256802U (en) | 1985-09-30 | 1985-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6256802U true JPS6256802U (en) | 1987-04-08 |
Family
ID=31064883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14956185U Pending JPS6256802U (en) | 1985-09-30 | 1985-09-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6256802U (en) |
-
1985
- 1985-09-30 JP JP14956185U patent/JPS6256802U/ja active Pending
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