JPH0198259U - - Google Patents
Info
- Publication number
- JPH0198259U JPH0198259U JP18999687U JP18999687U JPH0198259U JP H0198259 U JPH0198259 U JP H0198259U JP 18999687 U JP18999687 U JP 18999687U JP 18999687 U JP18999687 U JP 18999687U JP H0198259 U JPH0198259 U JP H0198259U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- cylinder
- connects
- pitch
- switching
- 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
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Description
第１図は本考案一実施例の構成説明図、第２図
はチルト時のシリンダの回路構成の説明図、第３
図はピツチ時のシリンダの回路構成の説明図、第
４図乃至第７図はそれぞれ異なる本考案の他の実
施例の構成説明図、第８図はピツチドーザの斜視
図、第９図はチルト量の比較を表示する説明図で
ある。
１は操作弁、８，１３はシリンダ、１０はピツ
チ・チルト切換弁、１８，１９は回路。
Fig. 1 is an explanatory diagram of the configuration of one embodiment of the present invention, Fig. 2 is an explanatory diagram of the circuit configuration of the cylinder during tilting, and Fig. 3 is an explanatory diagram of the circuit configuration of the cylinder during tilting.
The figure is an explanatory diagram of the circuit configuration of the cylinder during pitching, Figures 4 to 7 are explanatory diagrams of the configurations of other embodiments of the present invention, respectively, Figure 8 is a perspective view of the pitch dozer, and Figure 9 is the amount of tilt. FIG. 2 is an explanatory diagram showing a comparison. 1 is an operating valve, 8 and 13 are cylinders, 10 is a pitch/tilt switching valve, and 18 and 19 are circuits.
Claims (1)
チルト切換により、左のシリンダのロツド側と右
のシリンダのボトム側とを一方の回路に接続する
と共に左のシリンダのボトム側と右のシリンダの
ロツド側を他方の回路に接続し且つピツチ切換時
に左右のシリンダのロツド側を共に一方の回路に
接続し左右のシリンダのボトム側を共に他方の回
路に接続するピツチ・チルト切換弁と、シリンダ
回路に設けられて切換により一方の回路を高圧回
路に他方の回路をドレン回路にそれぞれ切換え、
また一方の回路をドレン回路に他方の回路を高圧
回路にそれぞれ切換える操作弁とを備えたことを
特徴とするピツチドーザ油圧回路装置。 The left and right cylinders and the cylinder circuit are provided with a tilt switch that connects the rod side of the left cylinder and the bottom side of the right cylinder to one circuit, and also connects the bottom side of the left cylinder and the rod side of the right cylinder. and a pitch/tilt switching valve that connects the rod sides of the left and right cylinders to one circuit and connects the bottom sides of the left and right cylinders to the other circuit when pitch is switched. By switching one circuit to the high voltage circuit and the other circuit to the drain circuit,
The pitch dozer hydraulic circuit device is further equipped with an operation valve for switching one circuit to a drain circuit and the other circuit to a high pressure circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18999687U JPH0198259U (en) | 1987-12-16 | 1987-12-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18999687U JPH0198259U (en) | 1987-12-16 | 1987-12-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0198259U true JPH0198259U (en) | 1989-06-30 |
Family
ID=31480999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18999687U Pending JPH0198259U (en) | 1987-12-16 | 1987-12-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0198259U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014149044A (en) * | 2013-02-01 | 2014-08-21 | Toshiba Mach Co Ltd | Hydraulic control system, and construction machine having the same mounted thereon |
-
1987
- 1987-12-16 JP JP18999687U patent/JPH0198259U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014149044A (en) * | 2013-02-01 | 2014-08-21 | Toshiba Mach Co Ltd | Hydraulic control system, and construction machine having the same mounted thereon |
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