CN203462501U - Intelligent stable shunt type oil source regeneration system for loader - Google Patents
Intelligent stable shunt type oil source regeneration system for loader Download PDFInfo
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- CN203462501U CN203462501U CN201320509347.XU CN201320509347U CN203462501U CN 203462501 U CN203462501 U CN 203462501U CN 201320509347 U CN201320509347 U CN 201320509347U CN 203462501 U CN203462501 U CN 203462501U
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Abstract
The utility model relates to an intelligent stable shunt type oil source regeneration system for a loader. An oil inlet of a working pump is connected with a hydraulic oil tank, and an oil outlet of the working pump is connected with an oil inlet of a distribution valve; an oil inlet of an intelligent oil source regeneration module is connected with an oil return port of the distribution valve, and a first oil outlet of the intelligent oil source regeneration module is connected with a rod cavity of a boom cylinder; a second oil outlet of the intelligent oil source regeneration module is connected with a rod cavity of a skip cylinder, and a stable shunt port of the intelligent oil source regeneration module is connected with an oil inlet of a hydraulic oil radiator; an oil return port of the intelligent oil source regeneration module is connected with an oil return port of the hydraulic oil radiator, and is connected with a return oil tank through a return oil filter. The intelligent stable shunt type oil source regeneration system provided by the utility model has the advantages of improving the working conditions of the hydraulic oil radiator, effectively prolonging the service life of the hydraulic oil radiator, eliminating the air suction phenomenon of the cylinder, and preventing evolution of gas in an oil liquid, thus preventing cavitation in the hydraulic system, ensuring the reliability of the work of the hydraulic system, and prolonging the service life of hydraulic system components.
Description
Technical field
The utility model relates to a kind of loader hydraulic system oil sources regenerative system.
Background technology
Loader is under the effect of swing arm and equipment deadweight, and swing arm decrease speed is very fast, the now quick oil return in the large chamber of boom cylinder, and boom cylinder loculus is because producing parital vacuum for shortage of oil; Equally when discharging, due to the effect of material and scraper bowl deadweight, the quick oil return in the large chamber of dump ram, loculus is also because producing parital vacuum for shortage of oil.When swing arm fast-descending and quickly discharging material, hydraulic system oil return flow surges, for the system that adopts fixed orifice to shunt, enter the fluid flow that hydraulic oil is loose also can increase severely thereupon, thereby hydraulic oil is fallen apart and causes fierce compression shock, cause the hydraulic oil explosion of faling apart, have a strong impact on the application life that hydraulic oil is loose.Meanwhile, boom cylinder, dump ram loculus produce parital vacuum, cause the gas evolution of solubility in fluid, hydraulic system stiffness degradation, and finally cause cavitation.Although the distributing valve inside of selecting in industry is at present with Fill valve, yet because valve inner oil duct is narrow, and repairing valve port opening is extremely limited, causes repairing function not obvious, and cavitation still exists.In order to eliminate cavitation, when carrying out system, generally on oil return line, increase sequence valve and produce back pressure, because loader operating mode is complicated, the back pressure that sequence valve produces is uncontrollable, the too small repairing of this back pressure DeGrain, back pressure is excessive can cause extra energy loss again, causes hydraulic oil temperature too high.
Summary of the invention
In order to solve cooling system compression shock and the not enough cavitation erosion problem producing of distributing valve repairing in loading arm fast drop course, the utility model provides a kind of loader to stablize bypass type oil sources regenerative system by intelligence.The inner integrated flow stabilizing valve of intelligent oil sources regeneration module of this system, under the effect of the settable orifice of flow stabilizing valve inside, even if hydraulic system of working oil return flow is undergone mutation, this system still can provide for hydraulic oil is loose highly stable flow, thereby eliminates the loose inner compression shock of hydraulic oil; By the external road that refills, can directly to boom cylinder loculus and dump ram loculus, carry out repairing on the other hand, thereby avoid the restriction loss of the inner oil duct of distributing valve and spool, avoid cavitation; According to the signal of integrated valve block pressure sensor feedback, passing ratio overflow valve regulates oil compensation pressure automatically, avoids extra energy loss when guaranteeing repairing effect.
The technical solution of the utility model is: the oil-in of working barrel is connected with hydraulic oil container, the oil-out of working barrel is connected with the oil-in of distributing valve, the oil-in of intelligence oil sources regeneration module is connected with the oil return opening of distributing valve, the first oil-out of intelligence oil sources regeneration module is connected with the rod chamber of boom cylinder, the second oil-out of intelligence oil sources regeneration module is connected with the rod chamber of dump ram, the stable diffluence pass of intelligence oil sources regeneration module and hydraulic oil fall apart into oil-in be connected, the oil return opening oil return opening loose with hydraulic oil of intelligence oil sources regeneration module is connected, then through oil return cleaner, take back fuel tank.
The input of the first pressure sensor in intelligence oil sources regeneration module is connected with the first oil-out, the input of the second pressure sensor is connected with the second oil-out, the output of the output of the first pressure sensor and the second pressure sensor is connected with controller, the output of controller is connected with proportional pressure control valve terminals, the entrance of proportional pressure control valve is connected with oil-in, the outlet of proportional pressure control valve is connected with the entrance of flow stabilizing valve piece, the outlet of flow stabilizing valve piece is connected with stable diffluence pass, between the oil-in of the first oil-out and intelligent oil sources regeneration module, there is the first Fill valve, between the oil-in of the second oil-out and intelligent oil sources regeneration module, there is the second Fill valve, the first pressure tap is connected with the second oil-out, the second pressure tap is connected with the first oil-out, the 3rd pressure tap is connected with intelligent oil sources regeneration module oil-in.
The advantage of the utility model patent is: 1, adopt intelligence to stablize bypass type oil sources regeneration module, the loose internal pressure shock problem of hydraulic oil causing because of flow sudden change in the time of can solving loading arm fast-descending and discharging, greatly improve the loose operating mode of hydraulic oil, effectively extended hydraulic oil loose application life.Change the throttle orifice in stable shunt valve piece in intelligent oil sources regeneration module and can regulate bypass flow, thereby mate different radiating requirements.2, adopt intelligent oil sources regeneration module, in the time of can making loading arm fast-descending and quickly discharging material, repairing is carried out in outside feed circuit by drag minimization, thereby eliminate oil cylinder emptying phenomenon, prevent gas evolution in fluid, and then stop the cavitation in hydraulic system, and guarantee Work Reliability of Hydraulic System, extend the application life of hydraulic system element; For different type of machines, the repairing flow of oil cylinder is different, changes the repairing traffic demand that controller control program in intelligent oil sources regeneration module can mate each type.3, by the little cavity pressure of pressure sensor Real-Time Monitoring oil cylinder, and control by the intellectuality that integrated controller and proportional pressure control valve are realized oil compensation pressure and flow, guarantee to have enough fluid to be supplemented to oil cylinder, and oil return line energy loss is down to minimum.4, this module adopts integration module structure, compact conformation, and easily processing, function is easy to realize.5, by regulating the bypass flow of intelligent oil sources regeneration module, can control and enter the fluid flow that hydraulic oil is loose, thereby obtain good radiating effect.6, intelligent oil sources regeneration module can be applicable to the development of new architecture, determines system repairing flow and heat equilibrium of hydraulic system parameter.
Accompanying drawing explanation
Fig. 1 is the structure chart of the utility model embodiment.
In figure: 1 hydraulic oil container, 2 working barrels, 3 distributing valve valves, 4 dump rams, 5 boom cylinders, 6 intelligent oil sources regeneration modules, 7 hydraulic oil are loose, 8 oil return cleaners, A the first oil-out, B the second oil-out, C stablizes diffluence pass, C1 controller, D1 the first Fill valve, D2 the second Fill valve, M1 the first pressure tap, M2 the second pressure tap, M3 the 3rd pressure tap, P oil-in, S1 the first pressure sensor, S2 the second pressure sensor, T1 oil return opening, W flow stabilizing valve piece, Y proportional pressure control valve.
The specific embodiment
Embodiment: the oil-in of working barrel 2 is connected with hydraulic oil container 1, the oil-out of working barrel 2 is connected with the oil inlet P 1 of distributing valve 3, the oil inlet P of intelligence oil sources regeneration module 6 is connected with the oil return inlet T 1 of distributing valve 3, the first oil-out A of intelligence oil sources regeneration module 6 is connected with the rod chamber of boom cylinder 5, the second oil-out B of intelligence oil sources regeneration module 6 is connected with the rod chamber of dump ram 4, the stable diffluence pass C of intelligence oil sources regeneration module 6 falls apart and is connected into 7 oil-in with hydraulic oil, the oil return inlet T of intelligence oil sources regeneration module 6 is connected with the oil return opening of hydraulic oil loose 7, then through oil return cleaner 8, take back fuel tank 1.
The input of the first pressure sensor S1 in intelligence oil sources regeneration module 6 is connected with the first oil-out A, the input of the second pressure sensor S2 is connected with the second oil-out B, the output of the output of the first pressure sensor S1 and the second pressure sensor S2 is connected with controller C1, the output of controller C1 is connected with proportional pressure control valve Y terminals, the entrance of proportional pressure control valve Y is connected with oil inlet P, the outlet of proportional pressure control valve Y is connected with the entrance of flow stabilizing valve piece W, the outlet of flow stabilizing valve piece W is connected with stable diffluence pass C, between the first oil-out A and oil inlet P, there is the first Fill valve D1, between the second oil-out B and oil inlet P, there is the second Fill valve D2, the first pressure tap M1 is connected with the second oil-out B, the second pressure tap M2 is connected with the first oil-out A, the 3rd pressure tap M3 is connected with the oil inlet P of intelligent oil sources regeneration module 6.
Intelligence oil sources regeneration module 6 is reallocated distributing valve 3 oil return flows by the proportional pressure control valve Y in intelligent oil sources regeneration module 6, preferentially guarantees the repairing flow of boom cylinder 5 and dump ram 4; Residual flow is stablized diffluence pass C through intelligent oil sources regeneration module 6 and is entered hydraulic oil loose 7, even if distributing valve 3 oil return flows are undergone mutation, the heat radiation flow that enters hydraulic oil loose 7 still can keep stable, and the flow more than needed of last distributing valve 3 oil returns takes back fuel tank 1 through stablizing the oil return inlet T of bypass type oil sources regeneration module 6.
Pressure sensor S1 in intelligence oil sources regeneration module 6 is connected with boom cylinder 5 rod chambers, when distributing valve 3 swing arms join in swing arm down position, the first pressure sensor S1 in intelligence oil sources regeneration module 6 by the pressure signal transmission detecting to the controller C1 in intelligent oil sources regeneration module 6, after via controller C1 analyzing and processing, by controller C1 output control signal, control the proportional pressure control valve Y in intelligent oil sources regeneration module 6, thereby set rational oil compensation pressure.Now under the proportional pressure control valve Y setting pressure effect in intelligent oil sources regeneration module 6, fluid backs down built-in the first Fill valve D1 of intelligent oil sources regeneration module 6 and communicates with distributing valve 3 oil return inlet T 1, and fluid is supplemented to boom cylinder 5 rod chambers through built-in the first Fill valve D1 of constant-current source regeneration module 6; The first pressure sensor S1 in intelligence oil sources regeneration module 6 detects boom cylinder 5 rod chamber pressure in real time, boom cylinder 5 rod chamber pressure are lower, proportional pressure control valve Y setting pressure in intelligence oil sources regeneration module 6 is higher, repairing flow is also just larger, when pressure sensor S1 detected pressures sets value higher than certain, proportional pressure control valve Y in intelligence oil sources regeneration module 6 opens completely, and repairing process finishes; The controller C1 of the control of whole repairing process in intelligent oil sources regeneration module 6 completes automatically, when guaranteeing repairing effect, the oil return line pressure loss is down to minimum; The proportional pressure control valve Y of another part in intelligent oil sources regeneration module 6 in distributing valve 3 oil return flows, stable shunt valve piece W in intelligent oil sources regeneration module 6 again, last stable diffluence pass C from intelligent oil sources regeneration module 6 enters hydraulic oil loose 7, the residue fluid of distributing valve 3 oil returns is stable shunt valve piece W oil return opening in intelligent oil sources regeneration module 6, then returns hydraulic oil container 1 through intelligent oil sources regeneration module 6 oil return inlet T.
The second pressure sensor S2 in intelligence oil sources regeneration module 6 is connected with dump ram 4 rod chambers, when distributing valve 3 rotating buckets join in discharge position, the second pressure sensor S2 in intelligence oil sources regeneration module 6 by the pressure signal transmission detecting to the controller C1 in intelligent oil sources regeneration module, after via controller C1 analyzing and processing, by controller output control signal, control the proportional pressure control valve Y in intelligent oil sources regeneration module 6, thereby set rational oil compensation pressure.Now under the proportional pressure control valve Y setting pressure effect in intelligent oil sources regeneration module 6, fluid backs down built-in the second Fill valve D2 of intelligent oil sources regeneration module 6 and communicates with distributing valve 3 oil return inlet T 1, and fluid is supplemented to dump ram 4 rod chambers through built-in the second Fill valve D2 of constant-current source regeneration module 6; The second pressure sensor S2 in intelligence oil sources regeneration module 6 detects dump ram 4 rod chamber pressure in real time, dump ram 4 rod chamber pressure are lower, proportional pressure control valve Y setting pressure in intelligence oil sources regeneration module 6 is higher, repairing flow is also just larger, when pressure sensor S2 detected pressures sets value higher than certain, proportional pressure control valve Y in intelligence oil sources regeneration module 6 opens completely, and repairing process finishes; The controller C1 of the control of whole repairing process in intelligent oil sources regeneration module 6 completes automatically, when guaranteeing repairing effect, the oil return line pressure loss is down to minimum; The proportional pressure control valve Y of another part in intelligent oil sources regeneration module 6 in distributing valve 3 oil return flows, stable shunt valve piece W in intelligent oil sources regeneration module 6 again, last stable diffluence pass C from intelligent oil sources regeneration module 6 enters hydraulic oil loose 7, the residue fluid of distributing valve 3 oil returns is stable shunt valve piece W oil return opening in intelligent oil sources regeneration module 6, then returns hydraulic oil container 1 through intelligent oil sources regeneration module 6 oil return inlet T.
When dump ram 4 rod chambers and boom cylinder 5 rod chambers do not need repairing, the proportional pressure control valve Y in intelligent oil sources regeneration module 6 opens completely, and oil return line energy loss is down to minimum.
The model of the distributing valve 3 using in this embodiment is DF32.
Claims (2)
1. a loader is stablized bypass type oil sources regenerative system by intelligence, the oil-in of working barrel is connected with hydraulic oil container, the oil-out of working barrel is connected with the oil-in of distributing valve, it is characterized in that: the oil-in of intelligent oil sources regeneration module is connected with the oil return opening of distributing valve, the first oil-out of intelligence oil sources regeneration module is connected with the rod chamber of boom cylinder, the second oil-out of intelligence oil sources regeneration module is connected with the rod chamber of dump ram, the stable diffluence pass of intelligence oil sources regeneration module and hydraulic oil fall apart into oil-in be connected, the oil return opening oil return opening loose with hydraulic oil of intelligence oil sources regeneration module is connected, then through oil return cleaner, take back fuel tank.
2. a kind of loader according to claim 1 is stablized bypass type oil sources regenerative system by intelligence, it is characterized in that: the input of the first pressure sensor in intelligent oil sources regeneration module is connected with the first oil-out, the input of the second pressure sensor is connected with the second oil-out, the output of the output of the first pressure sensor and the second pressure sensor is connected with controller, the output of controller is connected with proportional pressure control valve terminals, the entrance of proportional pressure control valve is connected with oil-in, the outlet of proportional pressure control valve is connected with the entrance of flow stabilizing valve piece, the outlet of flow stabilizing valve piece is connected with stable diffluence pass, between the oil-in of the first oil-out and intelligent oil sources regeneration module, there is the first Fill valve, between the oil-in of the second oil-out and intelligent oil sources regeneration module, there is the second Fill valve, the first pressure tap is connected with the second oil-out, the second pressure tap is connected with the first oil-out, the 3rd pressure tap is connected with oil sources regeneration module oil-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320509347.XU CN203462501U (en) | 2013-08-21 | 2013-08-21 | Intelligent stable shunt type oil source regeneration system for loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320509347.XU CN203462501U (en) | 2013-08-21 | 2013-08-21 | Intelligent stable shunt type oil source regeneration system for loader |
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| Publication Number | Publication Date |
|---|---|
| CN203462501U true CN203462501U (en) | 2014-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320509347.XU Withdrawn - After Issue CN203462501U (en) | 2013-08-21 | 2013-08-21 | Intelligent stable shunt type oil source regeneration system for loader |
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| CN (1) | CN203462501U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437387A (en) * | 2013-08-21 | 2013-12-11 | 徐工集团工程机械股份有限公司科技分公司 | Intelligent stable flow dividing type oil source regeneration system for loading machine |
-
2013
- 2013-08-21 CN CN201320509347.XU patent/CN203462501U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437387A (en) * | 2013-08-21 | 2013-12-11 | 徐工集团工程机械股份有限公司科技分公司 | Intelligent stable flow dividing type oil source regeneration system for loading machine |
| CN103437387B (en) * | 2013-08-21 | 2015-11-04 | 徐工集团工程机械股份有限公司科技分公司 | Loader intelligent stable bypass type oil sources regenerative system |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140305 Effective date of abandoning: 20151104 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140305 Effective date of abandoning: 20151104 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |