JPS6241936U - - Google Patents
Info
- Publication number
- JPS6241936U JPS6241936U JP13391285U JP13391285U JPS6241936U JP S6241936 U JPS6241936 U JP S6241936U JP 13391285 U JP13391285 U JP 13391285U JP 13391285 U JP13391285 U JP 13391285U JP S6241936 U JPS6241936 U JP S6241936U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- oil
- hydraulic clutch
- relief valve
- passing
- 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
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims 3
- 239000010720 hydraulic oil Substances 0.000 claims 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Description
第１図は、建設機械のうちホイールローダーの
全体側面図、第２図は同じく該ホイールローダー
に具備された油圧クラツチ式変速装置の油圧回路
図、第３図は本考案の要部であるデイレイリリー
フバルベの側面断面図、第４図は絞り孔９ｂ部分
のデイレイリリーフバルブＤの断面図である。
Ａ……オイルクーラー用リリーフバルブ、Ｂ…
…低圧リリーフバルブ、Ｄ……デイレイリリーフ
バルブ、Ｖ……油圧方向制御弁、２……オイルク
ーラー用リリーフバルブのスプール、３……絞り
弁スプール、４……バネ受けスプール、５……リ
リーフスプール、６，７……付勢バネ、９ａ，９
ｂ……絞り孔、１１……オイルクーラー。
Fig. 1 is an overall side view of a wheel loader among construction machines, Fig. 2 is a hydraulic circuit diagram of a hydraulic clutch type transmission equipped in the wheel loader, and Fig. 3 is a day shifter which is the main part of the present invention. A side sectional view of the relief valve, FIG. 4 is a sectional view of the day relief valve D at the throttle hole 9b portion. A... Relief valve for oil cooler, B...
...Low pressure relief valve, D...Day relief valve, V...Hydraulic directional control valve, 2...Oil cooler relief valve spool, 3...Throttle valve spool, 4...Spring receiver spool, 5...Relief spool , 6, 7... biasing spring, 9a, 9
b... Throttle hole, 11... Oil cooler.
Claims (1)
複数段の変速を行なう油圧クラツチ式変速装置に
おいて、作動油の粘度に応じて、作動油のオイル
クーラーへの通過・非通過状態を切換えるオイル
クーラー用リリーフバルブＡであつて、そのオイ
ルクーラー用リリーフバルブＡの切換えに基づい
て、油圧クラツチ装置の接合時の油圧立ち上がり
を制御するデイレイリリーフバルブＤの、バネ受
けスプール４の背室へ圧油を徐々に流入させるべ
く穿設した絞り径を変更制御したことを特徴とす
る油圧クラツチ式変速装置。 By selectively combining multiple sets of hydraulic clutch devices,
An oil cooler relief valve A that switches between passing and not passing hydraulic oil to an oil cooler according to the viscosity of the hydraulic oil in a hydraulic clutch type transmission that performs multi-speed shifting. Based on the switching of valve A, the diameter of the orifice drilled in the day relief valve D, which controls the rise of hydraulic pressure when the hydraulic clutch device is engaged, is changed to allow pressure oil to gradually flow into the back chamber of the spring receiving spool 4. A hydraulic clutch type transmission device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13391285U JPS6241936U (en) | 1985-08-31 | 1985-08-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13391285U JPS6241936U (en) | 1985-08-31 | 1985-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6241936U true JPS6241936U (en) | 1987-03-13 |
Family
ID=31034658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13391285U Pending JPS6241936U (en) | 1985-08-31 | 1985-08-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6241936U (en) |
-
1985
- 1985-08-31 JP JP13391285U patent/JPS6241936U/ja active Pending
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