JPS5657521A - Hydraulic type four wheel drive tractor - Google Patents
Hydraulic type four wheel drive tractorInfo
- Publication number
- JPS5657521A JPS5657521A JP13433979A JP13433979A JPS5657521A JP S5657521 A JPS5657521 A JP S5657521A JP 13433979 A JP13433979 A JP 13433979A JP 13433979 A JP13433979 A JP 13433979A JP S5657521 A JPS5657521 A JP S5657521A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- wheels
- swash plate
- motor
- wheel side
- 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
Landscapes
- Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
Abstract
PURPOSE: To run the tractor at a speed in the state having less power loss in the whole speed range, by providing a mechanism for automatically controlling front and rear wheels so that the speed ratio of them is 1 to 1.
CONSTITUTION: S1, S2 designate swash plates for regulating amounts of oil of pumps P1, P2 to be discharged, the swash plate S1 on the front wheel side is provided with a lever 12 for manual operation of the swash plate S1 and the swash plate S2 on the rear wheel side is provided with a motor 13. To an output shaft of each of the motors M1, on the front wheel side is provided a detecting device 14 for detecting the rotational speed thereof, and the detecting devices 14 are connected with the motor 13 interactively through a control mechanism A. According to the rotational speed detected by the detectors 14, the control mechanism A rotates the motor 13 so that the swash plate S2 may be rotated by an angle to discharge an amount of hydraulic oil that causes the speed of the rear wheels 2 to be the same as the speed of the wheels 1. Thus, if the speed of the wheels 1 is changed by the operation of the lever 12, the speed ratio of the rear wheels 2 to the front wheels 1 can be kept at 1 to 1 at all times.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13433979A JPS5657521A (en) | 1979-10-17 | 1979-10-17 | Hydraulic type four wheel drive tractor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13433979A JPS5657521A (en) | 1979-10-17 | 1979-10-17 | Hydraulic type four wheel drive tractor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5657521A true JPS5657521A (en) | 1981-05-20 |
Family
ID=15126033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13433979A Pending JPS5657521A (en) | 1979-10-17 | 1979-10-17 | Hydraulic type four wheel drive tractor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5657521A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5820522A (en) * | 1981-07-24 | 1983-02-07 | Kubota Ltd | Tractor |
-
1979
- 1979-10-17 JP JP13433979A patent/JPS5657521A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5820522A (en) * | 1981-07-24 | 1983-02-07 | Kubota Ltd | Tractor |
JPS6230939B2 (en) * | 1981-07-24 | 1987-07-06 | Kubota Ltd |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5803376A (en) | Crushing machine control system for a self-traveling crushing machine vehicle | |
CA2189440A1 (en) | Harvester with hydraulically driven, flow-compensated rotary cutter bed | |
JPS5657521A (en) | Hydraulic type four wheel drive tractor | |
JPS56112327A (en) | Four-wheel drive type tractor | |
GB1213368A (en) | Improvements in or relating to machines for boring holes | |
JPS55160618A (en) | Hydraulic running device | |
JPS5740156A (en) | Pressure control device in oil pressure circuit | |
JPS56127843A (en) | Automatic synchronizing device of direct transmission | |
JPS5657522A (en) | Hydraulic type four wheel drive tractor | |
JPS56129769A (en) | Speed governor of water wheel | |
JPS5497995A (en) | Motor driven steering machine | |
JPS5551668A (en) | Tractor | |
JPS5727301A (en) | Feedback type speed control method | |
JPS5455802A (en) | Oil pressure drive type variabel speed underwater pump | |
JPS55104587A (en) | Pump | |
SU688368A1 (en) | Vehicle steering mechanism | |
JPS5482561A (en) | Oil pressure controller of oil pressure driving gear | |
JPS5657520A (en) | Four wheel drive tractor | |
JPS5555734A (en) | Operating structure for work vehicle | |
JPS579349A (en) | Differential planetary gear transmission | |
JPS5715067A (en) | Clutch device for steering of agricultural machine | |
JPS57950A (en) | Differential gear for hydraulic travelling vehicle | |
JPS54147511A (en) | Compressor | |
JPS5613223A (en) | Drive device | |
JPS55148979A (en) | Blade wheel for wind and hydraulically driven prime mover |