JPH0241831U - - Google Patents
Info
- Publication number
- JPH0241831U JPH0241831U JP12080388U JP12080388U JPH0241831U JP H0241831 U JPH0241831 U JP H0241831U JP 12080388 U JP12080388 U JP 12080388U JP 12080388 U JP12080388 U JP 12080388U JP H0241831 U JPH0241831 U JP H0241831U
- Authority
- JP
- Japan
- Prior art keywords
- flow path
- side flow
- pressure
- pressure actuator
- fluid pressure
- 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
- 239000012530 fluid Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Landscapes
- Transplanting Machines (AREA)
- Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
- Gear-Shifting Mechanisms (AREA)
- Control Of Transmission Device (AREA)
Description
図面は本考案に係る作業車の流体圧式変速装置
の実施例を示し、第１図は走行伝動系の説明図、
第２図はデテント機構の概略側面図、第３図は変
速操作の油圧回路図、第４図はステアリング操作
構造の概略平面図、第５図は同概略側面図、第６
図は田植機の概略側面図を示す。
４……走行用クラツチ、９……第２流体圧アク
チユエータ、１６……第１流体圧アクチユエータ
、１７……制御弁、１９……開閉弁、２０……チ
エツク弁、Ｄ……ドレン側流路、Ｍ……ポンプ側
流路、Ｔ……デテント機構。
The drawings show an embodiment of the hydraulic transmission system for a working vehicle according to the present invention, and FIG. 1 is an explanatory diagram of the traveling transmission system;
Fig. 2 is a schematic side view of the detent mechanism, Fig. 3 is a hydraulic circuit diagram for gear shift operation, Fig. 4 is a schematic plan view of the steering operation structure, Fig. 5 is a schematic side view of the same, and Fig. 6 is a schematic side view of the detent mechanism.
The figure shows a schematic side view of the rice transplanter. 4... Traveling clutch, 9... Second fluid pressure actuator, 16... First fluid pressure actuator, 17... Control valve, 19... Opening/closing valve, 20... Check valve, D... Drain side flow path , M...Pump side flow path, T...Detent mechanism.
Claims (1)
対する制御弁１７が、中立位置ではポンプ側流路
Ｍをドレン側流路Ｄに接続するように構成され、
切り付勢された走行用クラツチ４を入り操作する
第２流体圧アクチユエータ９が、前記ポンプ側流
路Ｍに接続され、その第２流体圧アクチユエータ
９と前記ポンプ側流路Ｍとを接続する流路中に、
一次側圧が設定圧以上になると開くパイロツト圧
式の開閉弁１９と、二次側から一次側への流動の
みを許容するチエツク弁２０とが並列に配置され
、前記開閉弁１９は、前記第１流体圧アクチユエ
ータ１６の作動圧よりも高い作動圧で開くように
構成されている作業車の流体圧式変速装置であつ
て、切り位置の前記走行用クラツチ４の入り側へ
の作動に抵抗を付与するデテント機構Ｔが設けら
れている作業車の流体圧式変速装置。 The control valve 17 for the first fluid pressure actuator 16 for traveling speed change is configured to connect the pump side flow path M to the drain side flow path D in the neutral position,
A second fluid pressure actuator 9 that engages and operates the disengaged traveling clutch 4 is connected to the pump side flow path M, and a flow connecting the second fluid pressure actuator 9 and the pump side flow path M is connected to the pump side flow path M. On the road,
A pilot pressure type on-off valve 19, which opens when the primary side pressure exceeds a set pressure, and a check valve 20, which only allows flow from the secondary side to the primary side, are arranged in parallel. A detent for a working vehicle that is configured to open at an operating pressure higher than the operating pressure of the pressure actuator 16, and that provides resistance to the operation of the traveling clutch 4 in the disengaged position to the entry side. A hydraulic transmission for a work vehicle equipped with a mechanism T.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12080388U JPH0241831U (en) | 1988-09-14 | 1988-09-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12080388U JPH0241831U (en) | 1988-09-14 | 1988-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0241831U true JPH0241831U (en) | 1990-03-22 |
Family
ID=31367241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12080388U Pending JPH0241831U (en) | 1988-09-14 | 1988-09-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0241831U (en) |
-
1988
- 1988-09-14 JP JP12080388U patent/JPH0241831U/ja active Pending
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