CN203641145U - Hydraulic block capable of realizing double pistons retreating in conveying system - Google Patents
Hydraulic block capable of realizing double pistons retreating in conveying system Download PDFInfo
- Publication number
- CN203641145U CN203641145U CN201320727612.1U CN201320727612U CN203641145U CN 203641145 U CN203641145 U CN 203641145U CN 201320727612 U CN201320727612 U CN 201320727612U CN 203641145 U CN203641145 U CN 203641145U
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- Prior art keywords
- valve
- cartridge
- oil
- ball
- way
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- Expired - Fee Related
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- 239000012530 fluid Substances 0.000 claims description 12
- 239000002828 fuel tank Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 238000005086 pumping Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 8
- 239000010720 hydraulic oil Substances 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model relates to a hydraulic block capable of realizing double pistons retreating in a conveying system, which comprises a main four-way valve, a cartridge valve I, a cartridge valve II, ball valves, a valve block, a reversing valve and a magnetic exchange valve. The hydraulic block is characterized in that the main four-way valve and the reversing valve are overlaid to form a four-way reversing valve mounted at the oil inlet of a valve group, the cartridge valve I, the cartridge valve II and the magnetic exchange valve form an automatic high-low pressure switching oil-way valve mounted between an action oil cylinder and an overlaid reserving valve, the cartridge valve II is communicated with the rodless cavity of the oil cylinder, the oil opening in one end of each ball valve is connected with one oil opening of the cartridge valve II, and the oil opening in the other end of each ball valve is connected with an oil tank. According to the utility model, during the large discharging pumping process, each ball valve is opened and the speed is controlled so as to enable the oil in the rodless cavity to enter the oil tank, therefore, the purpose that two pushing pistons retreat into a washing chamber simultaneously can be realized.
Description
Technical field
The utility model is mainly concerned with constructional engineering machinery field, particularly a kind of pair hydraulic valve bank structures of moving back piston that realize.
Background technique
In the using process of concrete pump, concrete pushes piston and moves back and forth in conveying cylinder, and piston uses rubber product to make, and working life is limited, therefore will often change propelling movement piston.It is simple, convenient and easy that this just requires the design of concrete equipment to meet replacing piston operation.Traditional concrete pump is changed piston structure, often can only once piston be on one side retracted into washing chamber, is changing after the piston on one side, ato unit again, crawl master cylinder, releases the piston of having finished changing, the piston of another side is return simultaneously, and changed the piston of returning.There are some drawbacks in the piston program of changing like this, and one, program is loaded down with trivial details, work discontinuous---change after piston on one side, need to restart motor, then another side piston is changed; Two, there is potential safety hazard---restart motor, then change the injury to personnel that another side piston may cause misoperation to cause; If three, change and carry cylinder inconvenience---changing piston while carrying cylinder can not return in washing chamber simultaneously, always having propelling movement piston on one side remains in conveying cylinder, cause like this having changed the conveying cylinder on one side, while changing again the conveying cylinder of another side, need to restart motor, this is very high to the arrangement requirement of hydraulic pipe line, makes circuit design difficulty.
Summary of the invention
The problem that the purpose of this utility model exists in order to overcome above-mentioned prior art, and provide a kind of simple, be convenient to implement, can realize fast the two hydraulic valve bank of moving back piston of concrete pump transporting system.
In order to solve the problems of the technologies described above, the solution the utility model proposes is:
A kind of two hydraulic valve bank of moving back piston of transporting system that realize, comprise main four-way valve, cartridge valve I, cartridge valve II, ball valve, valve piece, selector valve, solenoid directional control valve, it is characterized in that: main four-way valve, selector valve stack composition four-way change-over valve are arranged on the filler opening of valve group, cartridge valve I, cartridge valve II, solenoid directional control valve composition automatic high/low pressure switch oil path valve and are arranged between action tank and stack selector valve, and cartridge valve II is communicated with the rodless cavity of oil cylinder, one end hydraulic fluid port of ball valve is connected with cartridge valve II one hydraulic fluid port, and the other end hydraulic fluid port of ball valve connects fuel tank.When large discharge pump send, ball valve is opened and control rate, made the oil of rodless cavity enter fuel tank, can realize two propelling movement pistons and be retracted into washing chamber simultaneously.
Compared with prior art, the utility model has the advantage of:
(1) simple to operate, program is coherent, and the time of changing in the past piston is probably 30 minutes, and this model utility can be 15 minutes the time shorten that changes piston, has greatly simplified operator's labor intensity.
(2) change in the process of piston without start again, effectively avoided the possibility of the injury to personnel that misoperation may cause.
(3) change and carry cylinder convenient, this model utility can be retracted into piston in washing chamber simultaneously, can change conveying cylinder simultaneously, after avoiding changing conveying cylinder on one side, to again take over, open machine, after the propelling movement piston of action another side, change again the conveying cylinder of another side, greatly alleviated and changed the labor intensity of carrying cylinder.
The utility model be a kind of simple in structure, be easy to adjust, stress distribution evenly, be convenient to implement.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the hydraulic valve bank of the utility model practical function.
Fig. 2 is the schematic diagram of the utility model hydraulic principle.
Embodiment
The utility model will be further described by reference to the accompanying drawings.
As shown in Figure 1, the utility model comprises valve piece 1, cartridge valve I 2, main four-way valve 3, ball valve 4, cartridge valve II 5, selector valve 6, solenoid directional control valve 7, main four-way valve 3, selector valve 6 stack composition four-way change-over valves are arranged on the filler opening of valve group, cartridge valve I 2, cartridge valve II 5, solenoid directional control valve 7 form automatic high/low pressure switching oil path valve and are arranged between action tank and stack selector valve, and cartridge valve II 5 is communicated with the rodless cavity of oil cylinder, one end hydraulic fluid port of ball valve 4 is connected with cartridge valve II 5 one hydraulic fluid ports, and the other end hydraulic fluid port of ball valve 4 connects fuel tank.When large discharge pump send, ball valve 4 is opened and control rate, made the oil of rodless cavity enter fuel tank, can realize two propelling movement pistons and be retracted into washing chamber simultaneously.
As shown in Figure 2, in normal pumping procedure, first the hydraulic oil of system enter high low pressure by main four-way change-over valve and switch cartridge valve I 2.1, cartridge valve I 2.2, cartridge valve I 2.3, cartridge valve I 2.4 or a cartridge valve I 2.5 in oil path valve, wherein the cartridge valve I 2 of high low pressure switching oil path valve has five cartridge valves (2.1,2.2,2.3,2.4,2.5), enter the master cylinder rod chamber of one end, cartridge valve II 5 is communicated with master cylinder rodless cavity, and hydraulic oil enters the master cylinder rodless cavity of the other end by cartridge valve II 5; A hydraulic fluid port in cartridge valve II 5 connects ball valve 4 one end hydraulic fluid ports, and ball valve 4 the other end hydraulic fluid ports are communicated with fuel tank.When needs carry out two when moving back piston, first the repairing stop valve of master cylinder one end is closed, open ball valve 4, now two master cylinder rodless cavities communicate with fuel tank, crawl master cylinder, the master cylinder rodless cavity hydraulic oil of one end enters fuel tank by cartridge valve II 5 and ball valve 4, has exited the piston of one end.Crawl opposite side master cylinder again, rodless cavity hydraulic oil is got back to fuel tank by ball valve 4, has exited the other end piston.So simple step just can realize two pistons that move back.
Claims (1)
1. can realize the two hydraulic valve bank of moving back piston of transporting system for one kind, comprise main four-way valve, cartridge valve I, cartridge valve II, ball valve, valve piece, selector valve, solenoid directional control valve, it is characterized in that: main four-way valve, selector valve stack composition four-way change-over valve are arranged on the filler opening of valve group, cartridge valve I, cartridge valve II, solenoid directional control valve composition automatic high/low pressure switch oil path valve and are arranged between action tank and stack selector valve, and cartridge valve II is communicated with the rodless cavity of oil cylinder, one end hydraulic fluid port of ball valve is connected with cartridge valve II one hydraulic fluid port, and the other end hydraulic fluid port of ball valve connects fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320727612.1U CN203641145U (en) | 2013-11-18 | 2013-11-18 | Hydraulic block capable of realizing double pistons retreating in conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320727612.1U CN203641145U (en) | 2013-11-18 | 2013-11-18 | Hydraulic block capable of realizing double pistons retreating in conveying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203641145U true CN203641145U (en) | 2014-06-11 |
Family
ID=50872393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320727612.1U Expired - Fee Related CN203641145U (en) | 2013-11-18 | 2013-11-18 | Hydraulic block capable of realizing double pistons retreating in conveying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203641145U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154061A (en) * | 2014-07-10 | 2014-11-19 | 厦门理工学院 | Novel concrete pumping mechanism |
| CN104295553A (en) * | 2014-10-15 | 2015-01-21 | 恒天创丰重工有限公司 | Dual-withdrawing piston hydraulic valve group and dual-withdrawing piston hydraulic device |
| CN106122141A (en) * | 2016-05-31 | 2016-11-16 | 上海人豪液压技术有限公司 | Use modularity can combo inserted valve RHCV combination novel electrichydraulic control terminal |
-
2013
- 2013-11-18 CN CN201320727612.1U patent/CN203641145U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154061A (en) * | 2014-07-10 | 2014-11-19 | 厦门理工学院 | Novel concrete pumping mechanism |
| CN104295553A (en) * | 2014-10-15 | 2015-01-21 | 恒天创丰重工有限公司 | Dual-withdrawing piston hydraulic valve group and dual-withdrawing piston hydraulic device |
| CN106122141A (en) * | 2016-05-31 | 2016-11-16 | 上海人豪液压技术有限公司 | Use modularity can combo inserted valve RHCV combination novel electrichydraulic control terminal |
| CN106122141B (en) * | 2016-05-31 | 2018-04-03 | 上海人豪液压技术有限公司 | Using modularization can combo inserted valve RHCV combination electrichydraulic control terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20161118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |