JPS6332908U - - Google Patents
Info
- Publication number
- JPS6332908U JPS6332908U JP12587186U JP12587186U JPS6332908U JP S6332908 U JPS6332908 U JP S6332908U JP 12587186 U JP12587186 U JP 12587186U JP 12587186 U JP12587186 U JP 12587186U JP S6332908 U JPS6332908 U JP S6332908U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- chamber
- oil
- hydraulic
- accumulator
- 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
- 239000010720 hydraulic oil Substances 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 5
- 239000003921 oil Substances 0.000 claims 6
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Fluid-Damping Devices (AREA)
Description
図面は本考案の一実施例を示し、第１図は本考
案に係る油圧サスペンシヨン装置が搭載されるト
ラツククレーンの側面図、第２図は第１図に示す
トラツククレーンの部分横断面図、第３図は本考
案に係る油圧サスペンシヨン装置の油圧回路図、
第４図は作動油の供給系統の油圧回路図、第５図
は第４図に示す作動油供給系統の電磁切換弁１０
２のソレノイドが付勢され、電磁切換弁１０２が
切換位置１０２Ｂに切り換えられた場合の作動状
態を示す油圧回路図、第６図は本考案に係る油圧
サスペンシヨン装置の作動制御を司る姿勢制御コ
ントローラの入出力結線図、第７図は第３図の流
量制御弁２６を構成するチエツク弁２６ｂの詳細
を示す断面構成図、第８図乃至第１４図は第６図
の姿勢制御コントローラ１２０により実行される
油圧シリンダの作動制御手順を示すプログラムフ
ローチヤート、第１５図乃至第３２図は各々本考
案に係る油圧サスペンシヨン装置の作動を説明す
るための油圧回路状態図である。
１…トラツククレーン、３…シヤシフレーム、
４…前輪、５…フロントアクスル、８…後輪、９
…リアアクスル、１０，１２，１６，１８…油圧
シリンダ、１０ｂ，１２ｂ，１６ｂ，１８ｂ…ピ
ストン、１０ｅ，１２ｅ，１６ｅ，１８ｅ…スト
ロークセンサ、１０ｆ，１２ｆ，１６ｆ，１８ｆ
…ピストン上室、１０ｇ，１２ｇ，１６ｇ，１８
ｇ…ピストン下室、２１，２２…電磁切換弁、２
６，２７，２８，２９…流量制御弁、２６ａ，２
７ａ，２８ａ，２９ａ…絞り、２６ｂ，２７ｂ，
２８ｂ，２９ｂ…絞り付チエツク弁、２６０…ポ
ペツト、２６５…スペーサ、３０〜３３…遮断弁
、４０，４１…作動油圧路、４７，４９，５０…
電磁切換弁、５４，５５，５６…流量制御弁、５
４ａ，５４ｂ，５５ａ，５５ｂ，５６ａ，５６ｂ
…パイロツトチエツク弁、５７，６２，６５，６
８…アキユムレータ、１００…油圧ポンプ、１０
２…電磁切換弁、１２０…姿勢制御コントローラ
、１２２…傾斜角センサ、１２４…上下加速度Ｇ
センサ、１２５…ブレーキ圧スイツチ、１３０…
姿勢コントロールスイツチ、１３２…上下コント
ロールスイツチ、１３４…マニアル切換スイツチ
。
The drawings show one embodiment of the present invention; FIG. 1 is a side view of a truck crane on which a hydraulic suspension device according to the present invention is mounted; FIG. 2 is a partial cross-sectional view of the truck crane shown in FIG. 1; Figure 3 is a hydraulic circuit diagram of the hydraulic suspension device according to the present invention;
Figure 4 is a hydraulic circuit diagram of the hydraulic oil supply system, and Figure 5 is the electromagnetic switching valve 10 of the hydraulic oil supply system shown in Figure 4.
6 is a hydraulic circuit diagram showing the operating state when the solenoid No. 2 is energized and the electromagnetic switching valve 102 is switched to the switching position 102B. FIG. 6 is a posture control controller that controls the operation of the hydraulic suspension device according to the present invention. 7 is a sectional configuration diagram showing details of the check valve 26b that constitutes the flow control valve 26 in FIG. 3, and FIGS. 8 to 14 are executed by the attitude control controller 120 in FIG. 6. 15 to 32 are hydraulic circuit state diagrams for explaining the operation of the hydraulic suspension device according to the present invention. 1... Truck crane, 3... Chassis frame,
4...Front wheel, 5...Front axle, 8...Rear wheel, 9
...Rear axle, 10, 12, 16, 18... Hydraulic cylinder, 10b, 12b, 16b, 18b... Piston, 10e, 12e, 16e, 18e... Stroke sensor, 10f, 12f, 16f, 18f
...Piston upper chamber, 10g, 12g, 16g, 18
g... Piston lower chamber, 21, 22... Solenoid switching valve, 2
6, 27, 28, 29...flow control valve, 26a, 2
7a, 28a, 29a...diaphragm, 26b, 27b,
28b, 29b...Check valve with throttle, 260...Poppet, 265...Spacer, 30-33...Shutoff valve, 40, 41...Operating hydraulic path, 47, 49, 50...
Electromagnetic switching valve, 54, 55, 56...flow control valve, 5
4a, 54b, 55a, 55b, 56a, 56b
...Pilot check valve, 57, 62, 65, 6
8...Accumulator, 100...Hydraulic pump, 10
2...Solenoid switching valve, 120...Attitude control controller, 122...Inclination angle sensor, 124...Vertical acceleration G
Sensor, 125...Brake pressure switch, 130...
Posture control switch, 132... Up/down control switch, 134... Manual changeover switch.
Claims (1)
トンにより画成されるピストン一側室とピストン
ロツド側のピストン他側室とを有する油圧シリン
ダ、前記ピストン一側室と前記ピストン他側室と
を連通する油路、該油路途中に配設され、移動可
能な隔壁により画成されるガス室と油室を有し、
前記ピストンの移動により前記ピストン一側室か
ら吐出される作動油の一部を前記油室に蓄えるア
キユムレータ、該アキユムレータと前記ピストン
他側室間の前記油路途中に配設され、作動油の流
量を規制する絞り手段、及び該絞り手段と並列に
前記油路途中に配設され、前記ピストン一側室か
ら前記ピストン他側室に向かう作動油の流れのみ
を許容し、且つ、作動油の流量を規制するチエツ
ク弁から成ることを特徴とする車両用油圧サスペ
ンシヨン装置。 A hydraulic cylinder is interposed between a chassis frame and an axle and has a chamber on one side of the piston defined by a piston and a chamber on the other side of the piston on the piston rod side, an oil passage communicating the one side chamber of the piston and the other side chamber of the piston; It is located in the middle of the oil path and has a gas chamber and an oil chamber defined by a movable bulkhead,
an accumulator that stores part of the hydraulic oil discharged from one side chamber of the piston in the oil chamber as the piston moves; and an accumulator disposed in the oil path between the accumulator and the other side chamber of the piston to regulate the flow rate of the hydraulic oil. a checker disposed midway in the oil passage in parallel with the throttle means, allowing only the flow of hydraulic oil from one side chamber of the piston toward the other side chamber of the piston, and regulating the flow rate of the hydraulic oil; A vehicle hydraulic suspension device comprising a valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12587186U JPS6332908U (en) | 1986-08-20 | 1986-08-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12587186U JPS6332908U (en) | 1986-08-20 | 1986-08-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6332908U true JPS6332908U (en) | 1988-03-03 |
Family
ID=31019147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12587186U Pending JPS6332908U (en) | 1986-08-20 | 1986-08-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6332908U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6820877B1 (en) | 1999-02-09 | 2004-11-23 | Hitachi Construction Machinery Co., Ltd. | Wheeled type working vehicle |
-
1986
- 1986-08-20 JP JP12587186U patent/JPS6332908U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6820877B1 (en) | 1999-02-09 | 2004-11-23 | Hitachi Construction Machinery Co., Ltd. | Wheeled type working vehicle |
| US7104548B2 (en) | 1999-02-09 | 2006-09-12 | Hitachi Construction Machinery Co., Ltd. | Wheeled type working vehicle |
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