JPS55160618A - Hydraulic running device - Google Patents
Hydraulic running deviceInfo
- Publication number
- JPS55160618A JPS55160618A JP6785379A JP6785379A JPS55160618A JP S55160618 A JPS55160618 A JP S55160618A JP 6785379 A JP6785379 A JP 6785379A JP 6785379 A JP6785379 A JP 6785379A JP S55160618 A JPS55160618 A JP S55160618A
- Authority
- JP
- Japan
- Prior art keywords
- pump
- change
- motors
- hydraulic
- over 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.)
- Pending
Links
Landscapes
- Arrangement And Driving Of Transmission Devices (AREA)
Abstract
PURPOSE: To accomplish low speed-high load and high speed-low load runnings easily by a method wherein a hydraulic pump is provided repectively for each hydraulic motor which drives front and rear wheels separately.
CONSTITUTION: In order to apply the said device to an agricultural tractor, two hydraulic motors M1, M2, which drive right and left front wheels 1, 2 respectively, are provided in the supply oil circulating route 3 of the 1st variable capacity pump P1 driven by an engine E and the 1st change-over valve 4 is provided between both motors M1, M2 so that the 1st operating position that connects them in series can be changed over with the 2nd operating position that connects them in parallel. On the other hand, two hydraulic motors M3, M4, which drive right and left rear wheels 6, 7 respectively, are provided in the supply oil circulating route 8 of the 2nd variable capacity pump P2 and the 2nd change-over valve 9 as stated above is provided between both motors M3, M4. And near the inlet or outlet of the pump P1 is provided the 3rd change-over valve 11 that can change the pump P1 by a lever into the route 3 or 8.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6785379A JPS55160618A (en) | 1979-05-31 | 1979-05-31 | Hydraulic running device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6785379A JPS55160618A (en) | 1979-05-31 | 1979-05-31 | Hydraulic running device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55160618A true JPS55160618A (en) | 1980-12-13 |
Family
ID=13356918
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6785379A Pending JPS55160618A (en) | 1979-05-31 | 1979-05-31 | Hydraulic running device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55160618A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57157523U (en) * | 1981-03-31 | 1982-10-04 | ||
JPS583319U (en) * | 1981-06-30 | 1983-01-10 | 株式会社島津製作所 | Hydraulic drive system for vehicles |
JPS5859619U (en) * | 1981-10-19 | 1983-04-22 | ヤンマー農機株式会社 | agricultural vehicle |
JP2009137480A (en) * | 2007-12-07 | 2009-06-25 | Kyoeisha Co Ltd | Hydraulic drive circuit of four-wheeled lawn mower |
CN103600655A (en) * | 2013-11-22 | 2014-02-26 | 华南农业大学 | Front axle swinging type four-wheel drive chassis steering system for paddy fields |
CN106043418A (en) * | 2016-06-12 | 2016-10-26 | 农业部南京农业机械化研究所 | Steering system of rice transplanter and control method of steering system |
-
1979
- 1979-05-31 JP JP6785379A patent/JPS55160618A/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57157523U (en) * | 1981-03-31 | 1982-10-04 | ||
JPS583319U (en) * | 1981-06-30 | 1983-01-10 | 株式会社島津製作所 | Hydraulic drive system for vehicles |
JPS6242825Y2 (en) * | 1981-06-30 | 1987-11-04 | ||
JPS5859619U (en) * | 1981-10-19 | 1983-04-22 | ヤンマー農機株式会社 | agricultural vehicle |
JPS633299Y2 (en) * | 1981-10-19 | 1988-01-27 | ||
JP2009137480A (en) * | 2007-12-07 | 2009-06-25 | Kyoeisha Co Ltd | Hydraulic drive circuit of four-wheeled lawn mower |
CN103600655A (en) * | 2013-11-22 | 2014-02-26 | 华南农业大学 | Front axle swinging type four-wheel drive chassis steering system for paddy fields |
CN103600655B (en) * | 2013-11-22 | 2017-02-08 | 华南农业大学 | Front axle swinging type four-wheel drive chassis steering system for paddy fields |
CN106043418A (en) * | 2016-06-12 | 2016-10-26 | 农业部南京农业机械化研究所 | Steering system of rice transplanter and control method of steering system |
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