JPS6281668U - - Google Patents
Info
- Publication number
- JPS6281668U JPS6281668U JP17204285U JP17204285U JPS6281668U JP S6281668 U JPS6281668 U JP S6281668U JP 17204285 U JP17204285 U JP 17204285U JP 17204285 U JP17204285 U JP 17204285U JP S6281668 U JPS6281668 U JP S6281668U
- Authority
- JP
- Japan
- Prior art keywords
- motor
- circuit
- tilt
- control
- control circuit
- 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
- 238000010276 construction Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Description
第１図は本考案の実施例を示す油圧回路図、第
２図は別の実施例を示す油圧回路図である。
１，２……走行用可変油圧モータ、３，４……
パイロツト切替弁、５……高圧選択弁、１１，２
１……傾転制御器、１２，１３，２２，２３……
モータの両側管路、３１，４１……高圧選択弁、
３２，４２……転傾制御回路、３３，４３，５１
，５２……切替え回路。
FIG. 1 is a hydraulic circuit diagram showing an embodiment of the present invention, and FIG. 2 is a hydraulic circuit diagram showing another embodiment. 1, 2... variable hydraulic motor for travel, 3, 4...
Pilot switching valve, 5... High pressure selection valve, 11, 2
1...Tilt controller, 12, 13, 22, 23...
Pipe lines on both sides of the motor, 31, 41...high pressure selection valve,
32, 42...Tilting control circuit, 33, 43, 51
, 52...Switching circuit.
Claims (1)
用油圧モータに可変モータが用いられ、各モータ
のそれぞれに対し、モータ傾転制御器と、モータ
の両側管路の圧力を高圧選択して傾転制御回路に
導く高圧選択弁と、上記傾転制御回路をブロツク
してモータ傾転制御器をタンクに連通させる非制
御位置と、傾転制御回路をモータ傾転制御器に連
通させる制御位置とに切替自在の切替弁とが設け
られ、かつ、上記両傾転制御回路のうち少なくと
も一方の回路の圧力が所定値以上になつたときに
上記各切替弁を同時に制御位置に切替える切替手
段が設けられていることを特徴とする建設機械の
走行制御回路。 In the travel hydraulic circuit of construction machinery, variable motors are used for the left and right travel hydraulic motors, and each motor is controlled by a motor tilt controller and by selecting a high pressure in the pipes on both sides of the motor. a high pressure selection valve leading to the circuit, a non-control position where the tilt control circuit is blocked and the motor tilt controller communicates with the tank, and a control position where the tilt control circuit is communicated with the motor tilt controller. and switching means for simultaneously switching each of the switching valves to a control position when the pressure in at least one of the two tilting control circuits exceeds a predetermined value. A travel control circuit for construction machinery characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17204285U JPS6281668U (en) | 1985-11-07 | 1985-11-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17204285U JPS6281668U (en) | 1985-11-07 | 1985-11-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6281668U true JPS6281668U (en) | 1987-05-25 |
Family
ID=31108225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17204285U Pending JPS6281668U (en) | 1985-11-07 | 1985-11-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6281668U (en) |
-
1985
- 1985-11-07 JP JP17204285U patent/JPS6281668U/ja active Pending