JPH029256U - - Google Patents
Info
- Publication number
- JPH029256U JPH029256U JP8656288U JP8656288U JPH029256U JP H029256 U JPH029256 U JP H029256U JP 8656288 U JP8656288 U JP 8656288U JP 8656288 U JP8656288 U JP 8656288U JP H029256 U JPH029256 U JP H029256U
- Authority
- JP
- Japan
- Prior art keywords
- oil supply
- pressure oil
- proportional solenoid
- boom
- connects
- 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 4
Landscapes
- Forklifts And Lifting Vehicles (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Description
第１図は本考案のブーム駆動装置の一実施例を
示す油圧回路図、第２図は操作盤の一例を示す斜
視図、第３図は本考案における回路の油量の変化
の状態を示す図、第４図は本考案によるブーム旋
回動作時の時間と動作速度との関係を示す図、第
５図は従来例を示す油圧回路の概略図、第６図は
従来例における回路の油量の変化の状態を示す図
である。
１，２，３，４……起伏用シリンダ、５……油
圧ポンプ、６，７，８，９……比例電磁弁、１０
……圧油供給ライン、１４……送信器、１５……
ジヨイステイツクレバー、１６……ポテンシヨメ
ータ、１７……アンプ、１８……油圧モータ、２
０……比例電磁弁、２１……スイツチ。
Fig. 1 is a hydraulic circuit diagram showing one embodiment of the boom drive device of the present invention, Fig. 2 is a perspective view showing an example of the operation panel, and Fig. 3 shows the state of changes in the amount of oil in the circuit in the present invention. Figure 4 is a diagram showing the relationship between time and operating speed during boom rotation operation according to the present invention, Figure 5 is a schematic diagram of a hydraulic circuit showing a conventional example, and Figure 6 is a diagram showing the amount of oil in the circuit in the conventional example. It is a figure which shows the state of change of. 1, 2, 3, 4...Luffing cylinder, 5...Hydraulic pump, 6, 7, 8, 9...Proportional solenoid valve, 10
... Pressure oil supply line, 14 ... Transmitter, 15 ...
Joy states lever, 16... Potentiometer, 17... Amplifier, 18... Hydraulic motor, 2
0...Proportional solenoid valve, 21...Switch.
Claims (1)
ンダと圧油供給源とを結ぶ圧油供給ラインに、各
段の起伏用シリンダに対応させて各々比例電磁弁
を組み込み、且つブームを旋回させる旋回用油圧
モータと圧油供給源とを結ぶ圧油供給ラインに比
例電磁弁を組み込み、ジヨイステイツクレバーや
旋回動作用のスイツチを備えた送信器と上記各比
例電磁弁とをアンプを介して接続してなることを
特徴とするコンクリートポンプ車のブーム駆動装
置。 Proportional solenoid valves are installed in the pressure oil supply line that connects the luffing cylinders provided for each stage of the multi-stage boom and the pressure oil supply source, and the boom is rotated. A proportional solenoid valve is built into the pressure oil supply line that connects the swing hydraulic motor and the pressure oil supply source, and a transmitter equipped with a joy states lever and a switch for swing operation is connected to each of the above proportional solenoid valves via an amplifier. A boom drive device for a concrete pump vehicle, which is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8656288U JPH0627719Y2 (en) | 1988-06-29 | 1988-06-29 | Boom drive for concrete pump car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8656288U JPH0627719Y2 (en) | 1988-06-29 | 1988-06-29 | Boom drive for concrete pump car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH029256U true JPH029256U (en) | 1990-01-22 |
| JPH0627719Y2 JPH0627719Y2 (en) | 1994-07-27 |
Family
ID=31311201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8656288U Expired - Lifetime JPH0627719Y2 (en) | 1988-06-29 | 1988-06-29 | Boom drive for concrete pump car |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0627719Y2 (en) |
-
1988
- 1988-06-29 JP JP8656288U patent/JPH0627719Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0627719Y2 (en) | 1994-07-27 |
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