JPS6158702U - - Google Patents
Info
- Publication number
- JPS6158702U JPS6158702U JP14410484U JP14410484U JPS6158702U JP S6158702 U JPS6158702 U JP S6158702U JP 14410484 U JP14410484 U JP 14410484U JP 14410484 U JP14410484 U JP 14410484U JP S6158702 U JPS6158702 U JP S6158702U
- Authority
- JP
- Japan
- Prior art keywords
- check valve
- lifting
- lowering
- agricultural tractor
- poppet
- 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
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Lifting Devices For Agricultural Implements (AREA)
- Fluid-Pressure Circuits (AREA)
Description
図面は本考案に係る農用トラクタの昇降装置の
実施例を示し、第１図はチエツク弁の縦断面図、
第２図は昇降装置の油圧制御図、第３図は全体側
面図、第４図イ，ロは夫々チエツク弁の開口度を
示す断面図であり、イは第２ポペツトが開口した
状態、ロは第１、第２ポペツトが開口した状態を
示す。
４……単動型油圧シリンダ、１０……電磁切換
弁、１２……チエツク弁、１８……ポペツト、２
３……プツシユロツド、２４……螺進変位機構、
２６……電動モータ。
The drawings show an embodiment of the lifting device for an agricultural tractor according to the present invention, and FIG. 1 is a longitudinal sectional view of a check valve;
Fig. 2 is a hydraulic control diagram of the lifting device, Fig. 3 is an overall side view, and Fig. 4 A and B are sectional views showing the degree of opening of the check valve, respectively. shows the state in which the first and second poppets are open. 4...Single-acting hydraulic cylinder, 10...Solenoid switching valve, 12...Check valve, 18...Poppet, 2
3... Push rod, 24... Spiral displacement mechanism,
26...Electric motor.
Claims (1)
切換弁１０で駆動制御するよう構成した農用トラ
クタの昇降装置であつて、前記油圧シリンダ４の
下降用排油路中に、排油阻止用のチエツク弁１２
を設け、このチエツク弁１２のポペツト１８を、
電動モータ２６及び螺進変位機構２４を介して正
逆作動されるプツシユロツド２３で押圧操作して
、チエツク弁１２の開度を全閉から全開の範囲で
調節可能に構成してある農用トラクタの昇降装置
。 This lifting device for an agricultural tractor is configured such that a single-acting hydraulic cylinder 4 for lifting and lowering a working device is driven and controlled by an electromagnetic switching valve 10. Check valve 12
is provided, and the poppet 18 of this check valve 12 is
Lifting and lowering of an agricultural tractor configured to be able to adjust the opening degree of the check valve 12 in the range from fully closed to fully open by pressing the push rod 23 which is operated in forward and reverse directions via the electric motor 26 and the screw displacement mechanism 24. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14410484U JPS6158702U (en) | 1984-09-22 | 1984-09-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14410484U JPS6158702U (en) | 1984-09-22 | 1984-09-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6158702U true JPS6158702U (en) | 1986-04-19 |
Family
ID=30702391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14410484U Pending JPS6158702U (en) | 1984-09-22 | 1984-09-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6158702U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62297510A (en) * | 1986-06-17 | 1987-12-24 | Honda Motor Co Ltd | Hydraulic device for working vehicle |
-
1984
- 1984-09-22 JP JP14410484U patent/JPS6158702U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62297510A (en) * | 1986-06-17 | 1987-12-24 | Honda Motor Co Ltd | Hydraulic device for working vehicle |