JPH0270045U - - Google Patents
Info
- Publication number
- JPH0270045U JPH0270045U JP14750088U JP14750088U JPH0270045U JP H0270045 U JPH0270045 U JP H0270045U JP 14750088 U JP14750088 U JP 14750088U JP 14750088 U JP14750088 U JP 14750088U JP H0270045 U JPH0270045 U JP H0270045U
- Authority
- JP
- Japan
- Prior art keywords
- switching valve
- boom cylinder
- oil chamber
- side oil
- boom
- 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.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Operation Control Of Excavators (AREA)
Description
第１図はこの考案にかかる振動抑制装置用回路
図、第２図はホイールローダの側面図、第３図は
従来技術の振動抑制装置用回路図である。
５……ブームシリンダ、１２……ブーム切換弁
、１４……アキユムレータ、１５……チエツク弁
、１６，５８……電磁切換弁、１７……パイロツ
ト切換弁、２２……電気回路、２３……メインス
イツチ、２７……ヘツド側油室、５７……ロツド
側油室。
FIG. 1 is a circuit diagram of a vibration suppressing device according to this invention, FIG. 2 is a side view of a wheel loader, and FIG. 3 is a circuit diagram of a conventional vibration suppressing device. 5... Boom cylinder, 12... Boom switching valve, 14... Accumulator, 15... Check valve, 16, 58... Solenoid switching valve, 17... Pilot switching valve, 22... Electric circuit, 23... Main Switch, 27...Head side oil chamber, 57...Rod side oil chamber.
Claims (1)
ダ５により回動可能に装着し、上記ブームシリン
ダ５内ヘツド側油室２７に通じる油路を分岐して
パイロツト切換弁１７のパイロツト圧受圧部４４
に作用可能とし、メインスイツチ２３を操作した
ときアキユムレータ１４に圧油を供給、かつその
アキユムレータ１４とブームシリンダ５内ヘツド
側油室２７とを連通状態に設定し、振動抑制を行
うようにした回路において、ブームシリンダ５内
ロツド側油室５７とパイロツト切換弁１７とを連
通する油路に電磁切換弁５８を設け、常時はブー
ムシリンダ５内ロツド側油室５７とブーム切換弁
１２とを上記電磁切換弁５８を介して流通可能と
し、メインスイツチ２３を聯作した時点にブーム
シリンダ５内ロツド側油室５７とアキユムレータ
１４とを連通状態可能に設定して構成したことを
特徴とする作業車両の振動抑制装置用回路。 The boom 4 is rotatably mounted on the front part of the vehicle body 2 by a boom cylinder 5, and the oil passage leading to the head side oil chamber 27 in the boom cylinder 5 is branched to connect the pilot pressure receiving part 44 of the pilot switching valve 17.
This circuit supplies pressurized oil to the accumulator 14 when the main switch 23 is operated, and sets the accumulator 14 and the head side oil chamber 27 in the boom cylinder 5 in a communicating state to suppress vibration. , an electromagnetic switching valve 58 is provided in the oil passage communicating between the rod-side oil chamber 57 in the boom cylinder 5 and the pilot switching valve 17, and the rod-side oil chamber 57 in the boom cylinder 5 and the boom switching valve 12 are normally connected to the electromagnetic switching valve 58. A work vehicle characterized in that the flow is enabled through a switching valve 58, and the rod side oil chamber 57 in the boom cylinder 5 and the accumulator 14 are set to be in communication with each other when the main switch 23 is connected. Circuit for vibration suppressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14750088U JPH0645491Y2 (en) | 1988-11-10 | 1988-11-10 | Circuit for vibration suppression device of work vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14750088U JPH0645491Y2 (en) | 1988-11-10 | 1988-11-10 | Circuit for vibration suppression device of work vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0270045U true JPH0270045U (en) | 1990-05-28 |
| JPH0645491Y2 JPH0645491Y2 (en) | 1994-11-24 |
Family
ID=31417957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14750088U Expired - Lifetime JPH0645491Y2 (en) | 1988-11-10 | 1988-11-10 | Circuit for vibration suppression device of work vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0645491Y2 (en) |
-
1988
- 1988-11-10 JP JP14750088U patent/JPH0645491Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0645491Y2 (en) | 1994-11-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0270045U (en) | ||
| JPH0313355U (en) | ||
| JPH02132754U (en) | ||
| JPH01119445U (en) | ||
| JPH0266867U (en) | ||
| JPH035768U (en) | ||
| JPH02139947U (en) | ||
| JPH0341203U (en) | ||
| JPS6285557U (en) | ||
| JPH01120562U (en) | ||
| JPH0192501U (en) | ||
| JPS63100553U (en) | ||
| JPH0483957U (en) | ||
| JPS61177263U (en) | ||
| JPS59116465U (en) | Blade work/scraper work switching device for construction vehicles | |
| JPS61146115U (en) | ||
| JPS62196260U (en) | ||
| JPH0336047U (en) | ||
| JPS63100169U (en) | ||
| JPS58156758U (en) | hydraulic excavator | |
| JPS59146262U (en) | Brake hydraulic adjustment device for center-folding shovel loader | |
| JPH0291795U (en) | ||
| JPH0473055U (en) | ||
| JPH0215648U (en) | ||
| JPS6414259U (en) |