JPH0446981U - - Google Patents
Info
- Publication number
- JPH0446981U JPH0446981U JP8692590U JP8692590U JPH0446981U JP H0446981 U JPH0446981 U JP H0446981U JP 8692590 U JP8692590 U JP 8692590U JP 8692590 U JP8692590 U JP 8692590U JP H0446981 U JPH0446981 U JP H0446981U
- Authority
- JP
- Japan
- Prior art keywords
- front wheel
- speed increase
- steering
- switching valve
- hydraulic cylinder
- 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 2
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Arrangement And Driving Of Transmission Devices (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
Description
図面は本考案の一実施例を示すものであつて、
第1図は油圧回路図、第2図は操向操作部の一部
を破断した側面図、第3図は前輪部の平面図、第
4図は制御回路図、第5図は非常用スイツチの回
路図である。
1……ステアリングハンドル、3a……トルク
センサー、5……前輪、7……操向用油圧シリン
ダー、10……前輪切角センサー、12……メイ
ンポンプ、13……切換バルブ、14……増速用
ポンプ、15……増速切換バルブ。
The drawings show one embodiment of the present invention,
Figure 1 is a hydraulic circuit diagram, Figure 2 is a partially cutaway side view of the steering operation section, Figure 3 is a plan view of the front wheel, Figure 4 is a control circuit diagram, and Figure 5 is an emergency switch. FIG. 1...Steering handle, 3a...Torque sensor, 5...Front wheel, 7...Hydraulic cylinder for steering, 10...Front wheel turning angle sensor, 12...Main pump, 13...Switching valve, 14...Additional Speed pump, 15...speed increase switching valve.
Claims (1)
切換バルブ13を介して接続し、操舵系に前輪切
角センサー10を介装し、前輪伝動系に変速装置
を介装したトラクタにおいて、別個に設けた増速
用ポンプ14を前記前輪切角センサー10の検出
結果により作動する増速切換バルブ15を介して
前記操向用油圧シリンダー7に通ずる油路に接続
したことを特徴とするトラクタにおける前輪増速
装置。 In a tractor in which a main pump 12 is connected to a steering hydraulic cylinder 7 via a switching valve 13, a front wheel turning angle sensor 10 is installed in the steering system, and a transmission is installed in the front wheel transmission system, the main pump 12 is separately provided. A front wheel speed increase in a tractor, characterized in that a speed increase pump 14 is connected to an oil passage leading to the steering hydraulic cylinder 7 via a speed increase switching valve 15 operated according to the detection result of the front wheel steering angle sensor 10. Device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8692590U JPH0446981U (en) | 1990-08-20 | 1990-08-20 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8692590U JPH0446981U (en) | 1990-08-20 | 1990-08-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0446981U true JPH0446981U (en) | 1992-04-21 |
Family
ID=31818855
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8692590U Pending JPH0446981U (en) | 1990-08-20 | 1990-08-20 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0446981U (en) |
-
1990
- 1990-08-20 JP JP8692590U patent/JPH0446981U/ja active Pending