JPS5881384U - concrete pump - Google Patents
concrete pumpInfo
- Publication number
- JPS5881384U JPS5881384U JP17674981U JP17674981U JPS5881384U JP S5881384 U JPS5881384 U JP S5881384U JP 17674981 U JP17674981 U JP 17674981U JP 17674981 U JP17674981 U JP 17674981U JP S5881384 U JPS5881384 U JP S5881384U
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- hydraulic pump
- pump
- oil
- hopper
- 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
Landscapes
- Reciprocating Pumps (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は、この考案に係るコンクリートポンプの一実施
例を示す断面図、第２図は、第１図の■−ｎ線における
コンクリートポンプの正面図、第一３図は、第１図の■
−■線におけるコンクリートポンプの断面図、第４図は
、油圧シリンダの駆動油圧回路図、第５図は、繰り出し
たコンクリートシリンダのコンクリートピストンを洗浄
している状態を示す説明図、第６図は、従来における油
圧シリンダの駆動油圧回路図である。
３、 ４・−・コンクリートシリンダ、５，６・・・コ
ンクリートピストン、１４．１５・・・油圧シリンダ、
１６．１７・・・ピストン、１８・・・閉油抜きとりバ
ルブ、２８・・・可変容量形の主油圧ポンプ、２９・・
・定容量形の補助油圧ポンプ。Fig. 1 is a sectional view showing an embodiment of the concrete pump according to this invention, Fig. 2 is a front view of the concrete pump taken along line ■-n in Fig. 1, and Fig. ■
A cross-sectional view of the concrete pump along the - ■ line, Figure 4 is a driving hydraulic circuit diagram of the hydraulic cylinder, Figure 5 is an explanatory diagram showing the state in which the concrete piston of the delivered concrete cylinder is being cleaned, and Figure 6 is , is a drive hydraulic circuit diagram of a conventional hydraulic cylinder. 3, 4... Concrete cylinder, 5, 6... Concrete piston, 14.15... Hydraulic cylinder,
16.17... Piston, 18... Closed oil drain valve, 28... Variable displacement main hydraulic pump, 29...
- Fixed displacement auxiliary hydraulic pump.
Claims (1)
互に吸排出作動される２連のコンクリートシリンダが、
ホッパの底部に接続開口されていると共に、上記ホッパ
内には上記コンクリートシリンダに交互に接続して、ホ
ッパ内の流路を切り換える流路切換弁が設けられている
コンクリートポンプにおいて、上記各油圧シリンダのロ
ンド側−のポートは接続されており、これらのポートに
は少くとも閉油抜きとシバルブと油タンクが接続されて
いると共に、各油圧シリンダのヘッド側のポートには、
少くと、も上記流路切換弁の切り換え作動に同期して交
互に高圧油を供給する油圧ポンプと、この主油圧ポンプ
に接続されて主油圧ポンプの吐出出力に対応して主油圧
ポンプに低圧油を供給し、また、吸込停止状態側のコン
クリートシリンダの油圧シリンダに低圧油を適宜供給す
る定容量形の補助油圧ポンプが接続される構成とされた
−ことを特徴とするコンクリートポンプ。
−Two concrete cylinders that are alternately sucked and discharged by a pair of hydraulic cylinders that operate in opposite phases,
A concrete pump having a connection opening at the bottom of the hopper and provided in the hopper with flow path switching valves that are alternately connected to the concrete cylinders and switch the flow paths in the hopper, The ports on the rond side of the hydraulic cylinder are connected, and at least the closed oil bleeder, valve, and oil tank are connected to these ports, and the ports on the head side of each hydraulic cylinder are connected to the
At the very least, there is a hydraulic pump that alternately supplies high-pressure oil in synchronization with the switching operation of the flow path switching valve, and a hydraulic pump that is connected to this main hydraulic pump and supplies low-pressure oil to the main hydraulic pump in response to the discharge output of the main hydraulic pump. A concrete pump characterized in that it is connected to a constant displacement auxiliary hydraulic pump that supplies oil and also appropriately supplies low pressure oil to the hydraulic cylinder of the concrete cylinder on the side where suction is stopped.
−
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17674981U JPS5881384U (en) | 1981-11-30 | 1981-11-30 | concrete pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17674981U JPS5881384U (en) | 1981-11-30 | 1981-11-30 | concrete pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5881384U true JPS5881384U (en) | 1983-06-02 |
| JPS6214387Y2 JPS6214387Y2 (en) | 1987-04-13 |
Family
ID=29969990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17674981U Granted JPS5881384U (en) | 1981-11-30 | 1981-11-30 | concrete pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5881384U (en) |
-
1981
- 1981-11-30 JP JP17674981U patent/JPS5881384U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6214387Y2 (en) | 1987-04-13 |
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