CN103437387B - Loader intelligent stable bypass type oil sources regenerative system - Google Patents
Loader intelligent stable bypass type oil sources regenerative system Download PDFInfo
- Publication number
- CN103437387B CN103437387B CN201310364384.0A CN201310364384A CN103437387B CN 103437387 B CN103437387 B CN 103437387B CN 201310364384 A CN201310364384 A CN 201310364384A CN 103437387 B CN103437387 B CN 103437387B
- Authority
- CN
- China
- Prior art keywords
- oil
- regeneration module
- intelligence
- hydraulic
- sources regeneration
- 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.)
- Active
Links
Landscapes
- Fluid-Pressure Circuits (AREA)
- Operation Control Of Excavators (AREA)
Abstract
A kind of loader intelligent stable bypass type oil sources regenerative system, 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, first oil-out of intelligence oil sources regeneration module is connected with the rod chamber of boom cylinder, 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 that the oil return opening of intelligence oil sources regeneration module is loose with hydraulic oil is connected, then fuel tank is taken back through oil return cleaner.Advantage of the present invention is improved the loose operating mode of hydraulic oil, effectively extend the application life that hydraulic oil is loose, eliminate oil cylinder emptying phenomenon, prevent gas evolution in fluid, and then the cavitation stopped in hydraulic system, ensure the reliability of hydraulic work system, extend the application life of hydraulic system element.
Description
Technical field
The present invention relates to a kind of oil sources regenerative system of loader hydraulic system.
Background technology
Loader swing arm and equipment deadweight effect under, swing arm decrease speed quickly, the now quick oil return in the large chamber of boom cylinder, boom cylinder loculus because of for shortage of oil produce parital vacuum; Same when discharging, due to the effect that material and scraper bowl are conducted oneself with dignity, the quick oil return in the large chamber of dump ram, loculus is also because producing parital vacuum for shortage of oil.Swing arm decline fast and quickly discharging material time, hydraulic system oil return flow surges, the system shunted is carried out for adopting fixed orifice, the fluid flow entering hydraulic oil loose also can increase severely thereupon, thus hydraulic oil is fallen apart cause fierce compression shock, cause the loose explosion of hydraulic oil, 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, and hydraulic system rigidity reduces, and finally causes cavitation.Although the distributing valve selected in industry is at present inner with Fill valve, however due to valve inner oil duct narrow, and repairing valve port opening is extremely limited, causes repairing function and not obvious, and cavitation still exists.In order to eliminate cavitation, when carrying out system, the general sequence valve that increases on oil return line produces back pressure, because loader operating mode is complicated, the back pressure that sequence valve produces is uncontrollable, this back pressure too small then repairing 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 the cavitation erosion problem that in loading arm fast drop course, cooling system compression shock and distributing valve repairing deficiency produce, the invention provides a kind of loader intelligent stable bypass type oil sources regeneration module.The integrated flow stabilizing valve of this inside modules, 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 highly stable flow for hydraulic oil falls apart, the inner compression shock thus elimination hydraulic oil falls apart; Directly can carry out repairing to boom cylinder loculus and dump ram loculus by the external road that refills on the other hand, thus avoid the restriction loss of distributing valve internal galleries 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 while guaranteeing repairing effect.
Technical scheme of the present invention 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, first oil-out of intelligence oil sources regeneration module is connected with the rod chamber of boom cylinder, 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 that the oil return opening of intelligence oil sources regeneration module is loose with hydraulic oil is connected, then fuel tank is taken back through oil return cleaner.
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 first pressure sensor is connected with controller with the output of the second pressure sensor, the output of controller is connected with proportional pressure control valve terminals, the entrance of proportional pressure control valve is connected with the oil-in of intelligent oil sources regeneration module, the outlet of proportional pressure control valve is connected with the entrance of flow stabilizing valve block, the outlet of flow stabilizing valve block is connected with stable diffluence pass, the first Fill valve is had between the oil-in of the first oil-out and intelligent oil sources regeneration module, the second Fill valve is had between the oil-in of the second oil-out and intelligent oil sources regeneration module, first pressure tap is connected with the second oil-out, second pressure tap is connected with the first oil-out, 3rd pressure tap is connected with intelligent oil sources regeneration module oil-in.
The advantage of patent of the present invention is: 1, adopt intelligent stable bypass type oil sources regeneration module, can solve loading arm decline fast and discharging time the hydraulic oil that causes because of flow sudden change to fall apart internal pressure shock problem, significantly improve the operating mode that hydraulic oil is loose, effectively extend the application life that hydraulic oil is loose.The throttle orifice changed in intelligent oil sources regeneration module in stable shunt valve block can regulate bypass flow, thus mate different radiating requirements.2, intelligent oil sources regeneration module is adopted, loader can be made to decline fast and quickly discharging material time, repairing is carried out by the outside feed circuit of drag minimization, thus eliminate oil cylinder emptying phenomenon, prevent gas evolution in fluid, and then the cavitation stopped in hydraulic system, ensure 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, and the controller control program changed in intelligent oil sources regeneration module can mate the repairing traffic demand of each type.3, by the little cavity pressure of pressure sensor Real-Time Monitoring oil cylinder, and realized the intelligentized control method of oil compensation pressure and flow by integrated controller and proportional pressure control valve, guarantee have enough fluid to be supplemented to oil cylinder, and oil return line energy loss is down to minimum.4, this module adopts integrated module structure, and compact conformation, easily processes, and function is easy to realize.5, by regulating the bypass flow of intelligent oil sources regeneration module, can control to enter the loose fluid flow of hydraulic oil, thus obtaining good radiating effect.6, intelligent oil sources regeneration module can be applicable to the development of new architecture, certainty annuity repairing flow and heat equilibrium of hydraulic system parameter.
Accompanying drawing explanation
Fig. 1 is the structure chart of the embodiment of the present invention.
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 fall apart, 8 oil return cleaners, A first oil-out, B second oil-out, C stablizes diffluence pass, C1 controller, D1 first Fill valve, D2 second Fill valve, M1 first pressure tap, M2 second pressure tap, M3 the 3rd pressure tap, P oil-in, S1 first pressure sensor, S2 second pressure sensor, T1 oil return opening, W flow stabilizing valve block, Y proportional pressure control valve.
Detailed description of the invention
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, first oil-out A of intelligence oil sources regeneration module 6 is connected with the rod chamber of boom cylinder 5, 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 and hydraulic oil fall apart into 7 oil-in be connected, the oil return inlet T of intelligence oil sources regeneration module 6 and hydraulic oil fall apart 7 oil return opening be connected, then fuel tank 1 is taken back through oil return cleaner 8.
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 first pressure sensor S1 is connected with controller C1 with the output of the second pressure sensor S2, 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 block W, the outlet of flow stabilizing valve block W is connected with stable diffluence pass C, the first Fill valve D1 is had between the oil inlet P of the first oil-out A and intelligent oil sources regeneration module 6, the second Fill valve D2 is had between the oil inlet P of the second oil-out B and intelligent oil sources regeneration module 6, first pressure tap M1 is connected with the second oil-out B, second pressure tap M2 is connected with the first oil-out A, 3rd pressure tap M3 is connected with the oil inlet P of intelligent oil sources regeneration module 6.
Distributing valve 3 oil return flow is reallocated by the proportional pressure control valve Y in intelligent oil sources regeneration module 6 by intelligence oil sources regeneration module 6, the preferential repairing flow ensureing 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 flow is undergone mutation, enter hydraulic oil fall apart 7 heat radiation flow still can keep stable, the flow more than needed of last distributing valve 3 oil return takes back fuel tank 1 through the oil return inlet T stablizing bypass type oil sources regeneration module 6.
Pressure sensor S1 in intelligence oil sources regeneration module 6 is connected with boom cylinder 5 rod chamber, when distributing valve 3 swing arm connection is in swing arm down position, the controller C1 of pressure signal transmission to intelligent oil sources regeneration module 6 that the first pressure sensor S1 in intelligence oil sources regeneration module 6 will detect, after via controller C1 analyzing and processing, control signal is exported by controller C1, control the proportional pressure control valve Y in intelligent oil sources regeneration module 6, thus set rational oil compensation pressure.Under proportional pressure control valve Y setting pressure effect now in intelligent oil sources regeneration module 6, fluid backs down the built-in 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 chamber through the built-in 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 is lower, proportional pressure control valve Y setting pressure in intelligence oil sources regeneration module 6 is higher, repairing flow is also larger, when pressure sensor S1 detected pressures is higher than certain setting value, proportional pressure control valve Y in intelligence oil sources regeneration module 6 opens completely, and repairing process terminates; The control of whole repairing process is completed automatically by the controller C1 in intelligent oil sources regeneration module 6, while guaranteeing repairing effect, is down to minimum by the oil return line pressure loss; The proportional pressure control valve Y of another part in intelligent oil sources regeneration module 6 in distributing valve 3 oil return flow, stable shunt valve block W in intelligent oil sources regeneration module 6 again, finally enter hydraulic oil loose 7 from the stable diffluence pass C intelligent oil sources regeneration module 6, residue fluid stable shunt valve block W oil return opening in intelligent oil sources regeneration module 6 of distributing valve 3 oil return, then return 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 chamber, when distributing valve 3 rotating bucket connection is in discharge position, the controller C1 of pressure signal transmission to intelligent oil sources regeneration module that the second pressure sensor S2 in intelligence oil sources regeneration module 6 will detect, after via controller C1 analyzing and processing, control signal is exported by controller, control the proportional pressure control valve Y in intelligent oil sources regeneration module 6, thus set rational oil compensation pressure.Under proportional pressure control valve Y setting pressure effect now in intelligent oil sources regeneration module 6, fluid backs down the built-in 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 chamber through the built-in 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 is lower, proportional pressure control valve Y setting pressure in intelligence oil sources regeneration module 6 is higher, repairing flow is also larger, when pressure sensor S2 detected pressures is higher than certain setting value, proportional pressure control valve Y in intelligence oil sources regeneration module 6 opens completely, and repairing process terminates; The control of whole repairing process is completed automatically by the controller C1 in intelligent oil sources regeneration module 6, while guaranteeing repairing effect, is down to minimum by the oil return line pressure loss; The proportional pressure control valve Y of another part in intelligent oil sources regeneration module 6 in distributing valve 3 oil return flow, stable shunt valve block W in intelligent oil sources regeneration module 6 again, finally enter hydraulic oil loose 7 from the stable diffluence pass C intelligent oil sources regeneration module 6, residue fluid stable shunt valve block W oil return opening in intelligent oil sources regeneration module 6 of distributing valve 3 oil return, then return hydraulic oil container 1 through intelligent oil sources regeneration module 6 oil return inlet T.
When dump ram 4 rod chamber and boom cylinder 5 rod chamber do not need repairing, the proportional pressure control valve Y in intelligent oil sources regeneration module 6 opens completely, is down to minimum by oil return line energy loss.
The model of the distributing valve 3 used in this embodiment is DF32.
Claims (1)
1. a loader intelligent stable bypass type oil sources regenerative system, 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 intelligent oil-in of oil sources regeneration module is connected with the oil return opening of distributing valve, first oil-out of intelligence oil sources regeneration module is connected with the rod chamber of boom cylinder, 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 that the oil return opening of intelligence oil sources regeneration module is loose with hydraulic oil is connected, then fuel tank is taken back through oil return cleaner,
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 first pressure sensor is connected with controller with the output of the second pressure sensor, 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 block, the outlet of flow stabilizing valve block is connected with stable diffluence pass, the first Fill valve is had between the oil-in of the first oil-out and intelligent oil sources regeneration module, the second Fill valve is had between the oil-in of the second oil-out and intelligent oil sources regeneration module, first pressure tap is connected with the second oil-out, second pressure tap is connected with the first oil-out, 3rd pressure tap is connected with oil sources regeneration module oil-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310364384.0A CN103437387B (en) | 2013-08-21 | 2013-08-21 | Loader intelligent stable bypass type oil sources regenerative system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310364384.0A CN103437387B (en) | 2013-08-21 | 2013-08-21 | Loader intelligent stable bypass type oil sources regenerative system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103437387A CN103437387A (en) | 2013-12-11 |
| CN103437387B true CN103437387B (en) | 2015-11-04 |
Family
ID=49691096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310364384.0A Active CN103437387B (en) | 2013-08-21 | 2013-08-21 | Loader intelligent stable bypass type oil sources regenerative system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103437387B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1126088A2 (en) * | 2000-02-18 | 2001-08-22 | Deere & Company | Hydraulic system for the dampening of inertia load |
| CN1676785A (en) * | 2004-03-31 | 2005-10-05 | 神钢建设机械株式会社 | Hydraulic control device and construction machine |
| CN201843161U (en) * | 2010-09-28 | 2011-05-25 | 斗山工程机械（中国）有限公司 | Hydraulic oil radiating device and hydraulic system of excavator |
| CN202789859U (en) * | 2012-08-13 | 2013-03-13 | 江苏大学 | Hydraulic energy-saving temperature controlling system for loader working equipment |
| CN203462501U (en) * | 2013-08-21 | 2014-03-05 | 徐工集团工程机械股份有限公司科技分公司 | Intelligent stable shunt type oil source regeneration system for loader |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005155230A (en) * | 2003-11-27 | 2005-06-16 | Komatsu Ltd | Hydraulic circuit for suppressing traveling vibration of wheel type construction machine |
-
2013
- 2013-08-21 CN CN201310364384.0A patent/CN103437387B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1126088A2 (en) * | 2000-02-18 | 2001-08-22 | Deere & Company | Hydraulic system for the dampening of inertia load |
| CN1676785A (en) * | 2004-03-31 | 2005-10-05 | 神钢建设机械株式会社 | Hydraulic control device and construction machine |
| CN201843161U (en) * | 2010-09-28 | 2011-05-25 | 斗山工程机械（中国）有限公司 | Hydraulic oil radiating device and hydraulic system of excavator |
| CN202789859U (en) * | 2012-08-13 | 2013-03-13 | 江苏大学 | Hydraulic energy-saving temperature controlling system for loader working equipment |
| CN203462501U (en) * | 2013-08-21 | 2014-03-05 | 徐工集团工程机械股份有限公司科技分公司 | Intelligent stable shunt type oil source regeneration system for loader |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103437387A (en) | 2013-12-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105926696A (en) | Excavator moving arm potential energy classified recovery and release device and method thereof | |
| CN105351293B (en) | A kind of energy-recuperation system of passive volume synchronization system | |
| CN102220969A (en) | Concrete pumping method for preventing pipe blockage and relieving method for preventing pipe blockage | |
| CN204344992U (en) | Load sensing multi-way valve, load sensitive system and excavator | |
| CN105221500A (en) | The TBM rear support hydraulic system of single double pump pattern switching and pressurize | |
| CN105544631B (en) | A kind of control loop of hydraulic shovel equipment | |
| CN205370659U (en) | Hydraulic pressure governing system that steam turbine was used | |
| CN206234174U (en) | A kind of fluid pressure drive device | |
| CN107882791B (en) | Multiple cylinders press hydraulic control system and its control method | |
| CN103437387B (en) | Loader intelligent stable bypass type oil sources regenerative system | |
| CN203462501U (en) | Intelligent stable shunt type oil source regeneration system for loader | |
| CN106003468A (en) | Powder recycling system and method | |
| CN103629170A (en) | Engineering machine stabilized-pressure oil tank device | |
| CN201050076Y (en) | Lead operation valve oil supplying system | |
| CN103790196B (en) | A kind of Hydraulic Excavator's Boom potential energy recovery control device | |
| CN203594637U (en) | Engineering mechanical pressure stabilization oil box device | |
| CN205315403U (en) | Efficient hydraulic power unit | |
| CN205025846U (en) | Backpressure valves and have underground scraper work systems of this backpressure valves | |
| CN204023642U (en) | Hydraulic crawler excavator oil-liquid hybrid electric system | |
| CN206129558U (en) | Integrated form air feed system for rock drill | |
| CN203462502U (en) | Stable shunt type oil source regeneration system for loader | |
| CN203584959U (en) | Oil-replenishing-pressure-adjustable hydraulic oil replenishing device of rotary motors of rotary drilling rig | |
| CN202577398U (en) | Swing arm descending energy-saving system of negative flow control of excvavtor | |
| CN103206433B (en) | A kind of hydraulic pressure group control energy-saving system | |
| CN206035929U (en) | Large -scale plate shearing machine hydraulic control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |