JPH0456525U - - Google Patents
Info
- Publication number
- JPH0456525U JPH0456525U JP1990100018U JP10001890U JPH0456525U JP H0456525 U JPH0456525 U JP H0456525U JP 1990100018 U JP1990100018 U JP 1990100018U JP 10001890 U JP10001890 U JP 10001890U JP H0456525 U JPH0456525 U JP H0456525U
- Authority
- JP
- Japan
- Prior art keywords
- port
- clutch
- spring
- hydraulically operated
- 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
- 238000006073 displacement reaction Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Description
第１図は一実施例を装備したトラクタ要部の縦
断正面図、第２図は同トラクタの一部分の縦断側
面図、第３図は同トラクター部分の側面図、第４
図は第１図の−線に沿う断面図、第５図は一
部材の斜視図、第６図は油圧回路を示す回路図、
第７図、第８図、第９図及び第１０図はそれぞれ
、作用を説明するためのやや模式化した縦断面図
、第１１図は作用を説明するための模式的なグラ
フ、第１２図は実施例の一部分についての変形例
を示すやや模式化した縦断面図である。
１……油圧作動式ＰＴＯクラツチ、２……油圧
供給ポート、３……クラツチポート、４……油ド
レンポート、５……ブレーキポート、６……弁穴
、７……切換弁、７ａ……環状溝、８……第１の
スプリング、９……第２のスプリング、１０……
操作手段、１１……摺動部材、１１ａ……連動杆
、１２……ピストン、１３……係合部、１４……
油圧作動式ブレーキ、１７……ＰＴＯ軸、１１８
…駆動軸、１９……伝動軸、２１……支持金物、
２２……クラツチハウジング、２３，２４……摩
擦エレメント、３４……ブレーキシユー、３７…
…トルクばね、３８……シリンダ部、４０……バ
ルブケース、４６，４７……油路、４９，５０…
…油路、５２……ガイド穴、５９……切欠き部、
６０……環状溝、６１……油通路穴、１４７……
油路。
Fig. 1 is a longitudinal sectional front view of the main parts of a tractor equipped with one embodiment, Fig. 2 is a longitudinal sectional side view of a portion of the same tractor, Fig. 3 is a side view of the same tractor portion, and Fig. 4 is a longitudinal sectional side view of a portion of the same tractor.
The figure is a sectional view taken along the - line in Figure 1, Figure 5 is a perspective view of one member, Figure 6 is a circuit diagram showing a hydraulic circuit,
Figures 7, 8, 9, and 10 are slightly schematic vertical cross-sectional views for explaining the action, Figure 11 is a schematic graph for explaining the action, and Figure 12 is a schematic graph for explaining the action. FIG. 2 is a slightly schematic vertical cross-sectional view showing a modification of a part of the embodiment. 1...Hydraulic operated PTO clutch, 2...Hydraulic supply port, 3...Clutch port, 4...Oil drain port, 5...Brake port, 6...Valve hole, 7...Switching valve, 7a... Annular groove, 8...first spring, 9...second spring, 10...
Operating means, 11... sliding member, 11a... interlocking rod, 12... piston, 13... engaging portion, 14...
Hydraulic operated brake, 17...PTO shaft, 118
... Drive shaft, 19 ... Transmission shaft, 21 ... Support hardware,
22...Clutch housing, 23, 24...Friction element, 34...Brake shoe, 37...
... Torque spring, 38 ... Cylinder part, 40 ... Valve case, 46, 47 ... Oil path, 49, 50 ...
...Oil passage, 52...Guide hole, 59...Notch,
60... Annular groove, 61... Oil passage hole, 147...
Oil road.
Claims (1)
チ１に対し接続されたクラツチポート３、及び油
ドレンポート４をそれぞれ開口させてある弁穴６
内に上記ＰＴＯクラツチ１の作動を制御するため
の切換弁７を、第１のスプリング８により油圧供
給ポート２とクラツチポート３間を連通させる向
きに、また第２のスプリング９によりこれらの両
ポート２，３間の連通を遮断する向きに、それぞ
れ移動附勢して挿入設置し、第１のスプリング８
の基端を操作手段１０によつて進退操作される摺
動部材１１によつて受けさせる一方、第２のスプ
リング９の基端を、該第２のスプリング９の反対
側からクラツチポート４の油圧を作用させてある
ピストン１２に受けさせ、また上記摺動部材１１
に、該摺動部材１１が切換弁７から一定量以上引
き離されると切換弁７に対し第２のスプリング９
の附勢方向から相対摺動不能に係合する係合部１
３を設けて、この係合部１３を介し摺動部材１１
によつて切換弁７を、クラツチポート３と油ドレ
ンポート４間を連通させる位置に変位させるよう
に構成したことを特徴とする、油圧作動式ＰＴＯ
クラツチの作動制御装置。 ２ 油圧作動式ＰＴＯクラツチ１の非作動状態で
該クラツチ１の従動側を制動するための油圧作動
式ブレーキ１４を設け、この油圧作動式ブレーキ
１４に対し接続されるブレーキポート５を前記弁
穴６に、前記係合部１１３介しての前記摺動部材
１１による切換弁７の変位によつてクラツチポー
ト３と油ドレンポート４間の連通後にブレーキポ
ート５が油圧供給ポート２に対し連通せしめられ
るように配置して開口させたことを特徴とする、
請求項１に記載の油圧作動式ＰＴＯクラツチの作
動制御装置。[Scope of Claim for Utility Model Registration] 1. A valve hole 6 in which the hydraulic supply port 2, the clutch port 3 connected to the hydraulically operated PTO clutch 1, and the oil drain port 4 are opened, respectively.
A switching valve 7 for controlling the operation of the PTO clutch 1 is oriented so that the hydraulic pressure supply port 2 and the clutch port 3 are communicated by a first spring 8, and a switching valve 7 for controlling the operation of the PTO clutch 1 is oriented so that the hydraulic supply port 2 and the clutch port 3 are communicated with each other by a second spring 9. The first spring 8
The base end of the second spring 9 is received by the sliding member 11 which is moved forward and backward by the operating means 10, while the base end of the second spring 9 is connected to the hydraulic pressure of the clutch port 4 from the opposite side of the second spring 9. is applied to the piston 12, and the sliding member 11
When the sliding member 11 is pulled away from the switching valve 7 by more than a certain amount, the second spring 9 is released against the switching valve 7.
An engaging portion 1 that engages in a relatively non-slidable manner from the biasing direction.
3 is provided, and the sliding member 11 is inserted through this engaging portion 13.
A hydraulically operated PTO, characterized in that the switching valve 7 is moved to a position where the clutch port 3 and the oil drain port 4 are communicated with each other.
Clutch operation control device. 2. A hydraulically operated brake 14 is provided for braking the driven side of the hydraulically operated PTO clutch 1 when the hydraulically operated PTO clutch 1 is not in operation, and the brake port 5 connected to the hydraulically operated brake 14 is connected to the valve hole 6. The brake port 5 is brought into communication with the hydraulic pressure supply port 2 after the clutch port 3 and the oil drain port 4 are communicated by the displacement of the switching valve 7 by the sliding member 11 via the engagement part 113. It is characterized by having an opening arranged in the
2. An actuation control device for a hydraulically operated PTO clutch according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990100018U JPH0751393Y2 (en) | 1990-09-25 | 1990-09-25 | Actuator for hydraulically actuated PTO clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990100018U JPH0751393Y2 (en) | 1990-09-25 | 1990-09-25 | Actuator for hydraulically actuated PTO clutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0456525U true JPH0456525U (en) | 1992-05-14 |
| JPH0751393Y2 JPH0751393Y2 (en) | 1995-11-22 |
Family
ID=31842362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990100018U Expired - Lifetime JPH0751393Y2 (en) | 1990-09-25 | 1990-09-25 | Actuator for hydraulically actuated PTO clutch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0751393Y2 (en) |
-
1990
- 1990-09-25 JP JP1990100018U patent/JPH0751393Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0751393Y2 (en) | 1995-11-22 |
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