JPH0369359U - - Google Patents
Info
- Publication number
- JPH0369359U JPH0369359U JP12825189U JP12825189U JPH0369359U JP H0369359 U JPH0369359 U JP H0369359U JP 12825189 U JP12825189 U JP 12825189U JP 12825189 U JP12825189 U JP 12825189U JP H0369359 U JPH0369359 U JP H0369359U
- Authority
- JP
- Japan
- Prior art keywords
- travel
- hydraulic
- flow path
- hydraulic motor
- rotation detector
- 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
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
- Control Of Fluid Gearings (AREA)
- Operation Control Of Excavators (AREA)
Description
第１図は本考案の第１の実施例の構成を示す図
、第２図は第２の実施例の構成を示す図、第３図
は電磁弁の駆動信号を示す図、第４図ａ，ｂは電
磁弁の駆動特性を示す図である。
１，２……走行用油圧モータ、３……ダンデム
ポンプ、４，５……コントロールバルブ、９，１
０……電磁弁、１２，１３……回転検出器、１４
……制御部、１５……油タンク、ｅ，ｆ……バイ
パス流路。
Fig. 1 is a diagram showing the configuration of the first embodiment of the present invention, Fig. 2 is a diagram showing the configuration of the second embodiment, Fig. 3 is a diagram showing the drive signal of the solenoid valve, and Fig. 4 a. , b are diagrams showing the drive characteristics of the solenoid valve. 1, 2... Hydraulic motor for travel, 3... Dandem pump, 4, 5... Control valve, 9, 1
0... Solenoid valve, 12, 13... Rotation detector, 14
...Control unit, 15...Oil tank, e, f...Bypass flow path.
Claims (1)
行用油圧モータを駆動し、車両の走行を行なうよ
うに構成された油圧走行回路において、各走行用
油圧モータの回転数を計測する回転検出器と、該
回転検出器の検出信号により各走行用油圧モータ
の速度差を検出する制御部と、タンデムポンプか
ら各走行用油圧モータへ油圧を送り込む流路から
それぞれ分岐し、油圧源側の油タンクに連通する
バイパス流路と、該バイパス流路中に設けられ、
前記制御部からの駆動信号によつてバイパス流路
の開閉を行なう電磁弁とを設けたことを特徴とす
る油圧走行回路。 In a hydraulic travel circuit configured to drive the left and right travel hydraulic motors by a tandem pump serving as a hydraulic power source to cause the vehicle to travel, a rotation detector that measures the number of revolutions of each travel hydraulic motor; A control unit that detects the speed difference between each hydraulic motor for travel based on the detection signal of the rotation detector, and a flow path that sends hydraulic pressure from the tandem pump to each hydraulic motor for travel are branched from each other and communicated with an oil tank on the hydraulic pressure source side. a bypass flow path provided in the bypass flow path,
A hydraulic travel circuit characterized in that it is provided with a solenoid valve that opens and closes a bypass passage in response to a drive signal from the control section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12825189U JPH0369359U (en) | 1989-10-31 | 1989-10-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12825189U JPH0369359U (en) | 1989-10-31 | 1989-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0369359U true JPH0369359U (en) | 1991-07-10 |
Family
ID=31675965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12825189U Pending JPH0369359U (en) | 1989-10-31 | 1989-10-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0369359U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014196777A (en) * | 2013-03-29 | 2014-10-16 | 日立建機株式会社 | Work machine |
-
1989
- 1989-10-31 JP JP12825189U patent/JPH0369359U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014196777A (en) * | 2013-03-29 | 2014-10-16 | 日立建機株式会社 | Work machine |