CN2526541Y - Pumping mechanism easy to replace concrete piston - Google Patents
Pumping mechanism easy to replace concrete piston Download PDFInfo
- Publication number
- CN2526541Y CN2526541Y CN 01257266 CN01257266U CN2526541Y CN 2526541 Y CN2526541 Y CN 2526541Y CN 01257266 CN01257266 CN 01257266 CN 01257266 U CN01257266 U CN 01257266U CN 2526541 Y CN2526541 Y CN 2526541Y
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- China
- Prior art keywords
- piston
- concrete
- cylinder
- oil cylinder
- concrete piston
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- Ceased
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- Reciprocating Pumps (AREA)
Abstract
The utility model belongs to the concrete transmission pump technical field, which relates to a pumping structure which is easy to replace a concrete piston. A pumping mechanism which is easy to replace the concrete piston comprises a transmission cylinder, a concrete piston, a water tank, a main oil cylinder piston rod and a main oil cylinder; the concrete piston is directly connected with the main oil cylinder piston rod; the stroke of the main oil cylinder is elongated; the tail of the main oil cylinder is connected with a position limit piston oil cylinder which is internally provided with a position limit piston; the position limit piston oil cylinder is connected with a steering valve which is connected with a pressure oil source by a check valve. As a middle connecting rod is saved, when the concrete piston is required to be replaced or cleaned, the utility model can lead the concrete piston to go back directly into the water tank, and is convenient and fast to replace or wash the concrete piston; the effect to the pumping construction of the concrete is diminished and the construction efficiency is improved.
Description
Technical field
The utility model belongs to technical field of concrete pumps, relates to a kind of pumping mechanism of easy replacing concrete piston.
Background technique
In concrete conveying equipment, the concrete piston is an easily damaged parts, often needs to change, and the concrete piston is in carrying cylinder during owing to work, the concrete piston must be retracted in the water tank and can dismantle from carry cylinder during replacing.Typical structure is that the concrete piston is connected on the main oil cylinder piston bar by middle extension bar, (middle extension bar can connect by screw rod with connecting of main oil cylinder piston bar and concrete piston, also can connect by cutting ferrule, was illustrated as the screw attachment mode) as shown in Figure 1.When needs dismounting concrete piston, at first middle extension bar is pulled down, crawl operation master cylinder advances then, make the main oil cylinder piston bar near the concrete piston, again with the master cylinder stopper rod directly and the concrete piston be linked together (see figure 2), last crawl operation master cylinder retreats, and makes the concrete piston be retracted into (see figure 3) in the water tank.Install by above-mentioned anti-process again after having torn open, it is very inconvenient to operate, and needed time is also very long, and concrete pumping construction and equipment are all had very big influence.
Summary of the invention
Technical problem to be solved in the utility model be to provide a kind of make piston change easily, convenient, saving of work and time provides the pumping mechanism of the easy replacing concrete piston of working efficiency.
The technological scheme that solution the utility model technical problem is adopted is that this pumping mechanism of easily changing the concrete piston comprises conveying cylinder, concrete piston, water tank, main oil cylinder piston bar, master cylinder, the concrete piston directly connects with the main oil cylinder piston bar, stroke lengthening with master cylinder, the tail end of master cylinder connects spacing piston oil-cylinder, spacing piston is arranged in the spacing piston oil-cylinder, spacing piston oil-cylinder connects selector valve, connects pressure oil-source by selector valve by one-way valve.
The utility model when needs are changed or clean the concrete piston, can make the concrete piston directly be retracted in the water tank owing to saved middle extension bar, and the concrete piston is changed or cleaned, and is convenient, fast, and the influence of concrete pumping construction is diminished, and improved efficiency of construction.
Description of drawings
Below in conjunction with embodiment's accompanying drawing the utility model is described in further detail.
Fig. 1 is the pumping mechanism plan view of existing concrete piston
Fig. 2 is the view behind the extension bar (4) in the middle of removing among Fig. 1
View when Fig. 3 enters in the water tank (6) for concrete piston (2) among Fig. 2
Fig. 4 is the utility model structural front view
Topology view when Fig. 5 enters in the water tank (6) for concrete piston (2) among Fig. 4
Among the figure: 1-carries the spacing piston oil-cylinder of cylinder 2-concrete piston 3-screw 4-intermediate connecting rod 5-main oil cylinder piston bar 6-water tank 7-master cylinder 8-cutting ferrule 9-back-up ring 10-spacing piston 11-selector valve 12-one-way valve 13-fuel tank 14-
Embodiment
Removed the intermediate connecting rod (4) in the pumping mechanism of concrete piston commonly used in the utility model, concrete piston (2) is directly connected with main oil cylinder piston bar (5), stroke lengthening with master cylinder (7), spacing with spacing piston (10), spacing piston (10) back cavity is connected (as shown in Figure 4) by a selector valve (11) with one-way valve (12) with pressure oil-source.During proper functioning, pressure oil enters the back cavity of spacing piston oil-cylinder (14) by one-way valve, selector valve, shift spacing piston (10) onto front end back-up ring (9) and locate (position shown in Figure 4), because the locking of one-way valve (12), hydraulic oil can not be run out of from the back cavity of spacing piston oil-cylinder (14), so spacing piston (10) can not retreat.When main oil cylinder piston bar (5) is run into spacing piston (10), block, make concrete piston (2) remain on the working position with regard to limited piston (10).When needs are changed or clean concrete piston (2), control selector valve (11) commutation, spacing piston oil-cylinder (14) is communicated with fuel tank (13), hydraulic oil can freely flow out, owing to there has not been the lock function of one-way valve (12), crawl operation main oil cylinder piston bar (5) is when retreating, main oil cylinder piston bar (4) just can promote spacing piston (10) and retreat into the end always, concrete piston (2) is retracted in the water tank (5), as shown in Figure 5, the case lid of so just can fetching boiling water, concrete piston (2) is directly cleaned or changes, convenient, fast, the saving of labor, save time, increase work efficiency.To concrete piston (2) clean or change finish after, cover tank lid, control selector valve (11) commutation again, make spacing piston (10) back cavity be connected (as shown in Figure 4) with pressure oil-source with one-way valve (12) by selector valve (11).Pressure oil enters the back cavity of spacing piston oil-cylinder (14) by one-way valve, selector valve, shift spacing piston (10) onto front end back-up ring (9) again and locate (position shown in Figure 4), because the locking of one-way valve (12), hydraulic oil can not be run out of from the back cavity of spacing piston oil-cylinder (14), and spacing piston (10) can not retreat.After main oil cylinder piston bar (5) is run into spacing piston (10), block, make concrete piston (2) remain on normal operation position again with regard to limited piston (10).
Claims (1)
1. pumping mechanism of easily changing the concrete piston, comprise and carry cylinder (1), concrete piston (2), water tank (6), main oil cylinder piston bar (5), master cylinder (7), it is characterized in that concrete piston (2) directly connects with main oil cylinder piston bar (5), stroke lengthening with master cylinder (7), the tail end of master cylinder (7) connects spacing piston oil-cylinder, spacing piston (10) is arranged in the spacing piston oil-cylinder (14), spacing piston oil-cylinder (14) connects selector valve (11), connects pressure oil-source by selector valve by one-way valve (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01257266 CN2526541Y (en) | 2001-11-01 | 2001-11-01 | Pumping mechanism easy to replace concrete piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01257266 CN2526541Y (en) | 2001-11-01 | 2001-11-01 | Pumping mechanism easy to replace concrete piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2526541Y true CN2526541Y (en) | 2002-12-18 |
Family
ID=33666065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01257266 Ceased CN2526541Y (en) | 2001-11-01 | 2001-11-01 | Pumping mechanism easy to replace concrete piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2526541Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011113356A1 (en) * | 2010-03-16 | 2011-09-22 | 湖南三一智能控制设备有限公司 | Concrete pumping structure and control method thereof |
| WO2011113241A1 (en) * | 2010-03-16 | 2011-09-22 | 湖南三一智能控制设备有限公司 | Concrete pumping structure |
| CN102374150A (en) * | 2010-08-12 | 2012-03-14 | 中集车辆（山东）有限公司 | Pumping mechanism capable of replacing concrete piston |
| CN102410168A (en) * | 2011-09-20 | 2012-04-11 | 三一重工股份有限公司 | Pumping mechanism and concrete pumping device |
| CN101210546B (en) * | 2006-12-27 | 2012-05-16 | 普拉德研究及开发股份有限公司 | Pump control for formation testing |
| CN102966528A (en) * | 2012-10-31 | 2013-03-13 | 山推楚天工程机械有限公司 | Novel piston limiting mechanism of conveying cylinder |
| CN103104434A (en) * | 2011-11-14 | 2013-05-15 | 徐工集团工程机械股份有限公司 | Concrete piston automatic returning device in closed type pumping system |
| CN103161710A (en) * | 2011-12-16 | 2013-06-19 | 北汽福田汽车股份有限公司 | Pipeline delivery device |
| CN105221410A (en) * | 2015-09-24 | 2016-01-06 | 铁建重工新疆有限公司 | A kind of concrete pump truck and pumping mechanism thereof |
-
2001
- 2001-11-01 CN CN 01257266 patent/CN2526541Y/en not_active Ceased
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210546B (en) * | 2006-12-27 | 2012-05-16 | 普拉德研究及开发股份有限公司 | Pump control for formation testing |
| WO2011113241A1 (en) * | 2010-03-16 | 2011-09-22 | 湖南三一智能控制设备有限公司 | Concrete pumping structure |
| US9322398B2 (en) | 2010-03-16 | 2016-04-26 | Hunan Sany Intelligent Control Equipment Co., Ltd. | Concrete pumping structure and control method thereof |
| WO2011113356A1 (en) * | 2010-03-16 | 2011-09-22 | 湖南三一智能控制设备有限公司 | Concrete pumping structure and control method thereof |
| CN102374150A (en) * | 2010-08-12 | 2012-03-14 | 中集车辆（山东）有限公司 | Pumping mechanism capable of replacing concrete piston |
| CN102410168B (en) * | 2011-09-20 | 2015-02-25 | 三一重工股份有限公司 | Pumping mechanism and concrete pumping device |
| CN102410168A (en) * | 2011-09-20 | 2012-04-11 | 三一重工股份有限公司 | Pumping mechanism and concrete pumping device |
| CN103104434A (en) * | 2011-11-14 | 2013-05-15 | 徐工集团工程机械股份有限公司 | Concrete piston automatic returning device in closed type pumping system |
| CN103104434B (en) * | 2011-11-14 | 2015-06-03 | 徐州徐工施维英机械有限公司 | Concrete piston automatic returning device in closed type pumping system |
| CN103161710A (en) * | 2011-12-16 | 2013-06-19 | 北汽福田汽车股份有限公司 | Pipeline delivery device |
| CN102966528B (en) * | 2012-10-31 | 2015-09-30 | 山推楚天工程机械有限公司 | A kind of novel piston of conveying cylinder position-limit mechanism |
| CN102966528A (en) * | 2012-10-31 | 2013-03-13 | 山推楚天工程机械有限公司 | Novel piston limiting mechanism of conveying cylinder |
| CN105221410A (en) * | 2015-09-24 | 2016-01-06 | 铁建重工新疆有限公司 | A kind of concrete pump truck and pumping mechanism thereof |
| CN105221410B (en) * | 2015-09-24 | 2018-08-28 | 铁建重工新疆有限公司 | A kind of concrete pump truck and its pumping mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20111122 Decision number of declaring invalidation: 17569 Granted publication date: 20021218 |