CN103696454A - Intelligent oil return control device in breaking working condition, excavator and method - Google Patents
Intelligent oil return control device in breaking working condition, excavator and method Download PDFInfo
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- CN103696454A CN103696454A CN201310700493.5A CN201310700493A CN103696454A CN 103696454 A CN103696454 A CN 103696454A CN 201310700493 A CN201310700493 A CN 201310700493A CN 103696454 A CN103696454 A CN 103696454A
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Abstract
The invention discloses an intelligent oil return control device in the breaking working condition, an excavator and a method and belongs to the field of mechanical control. The device comprises a breaking hammer 1, an oil tank 2, a main pump 3, a reversing valve 6, a cooler 7, a temperature sensor 8 and a controller 9. An oil inlet 4 and an oil return port 5 are formed in the breaking hammer 1. An inlet, a first outlet and a second outlet are formed in the reversing valve 6. The inlet is communicated with the oil return port 5, the first outlet is communicated with the oil tank 2, and the second outlet is communicated with the oil tank 2 through the cooler 7. The temperature sensor 8 is arranged on a control oil channel. When the temperature of the control oil channel is higher than or equal to 60 DEG C to 75 DEG C, the reversing valve 6 is communicated with the inlet and the second outlet. When the temperature of the control oil channel is lower than or equal to 50 DEG C to 65 DEG C, the reversing valve 6 is communicated with the inlet and the first outlet. According to the device, the excavator and the method, the return direction of oil at the high and low temperatures is controlled by the controller, the cooler is protected from being damaged, the excavator working efficiency is improved, the cost is low, and safety and reliability are provided.
Description
Technical field
The invention belongs to plant equipment control field, relate to the device of controlling oil temperature, relate in particular to device, excavator and the method for Based Intelligent Control oil return under broken operating mode for excavator.
Background technology
Hydraulic crawler excavator is when using quartering hammer to carry out crushing operation, and owing to considering the problems such as oil return convenience and oil return resistance are low, quartering hammer oil return mostly adopts the mode of direct oil sump tank.
This circuit can not cause any problem for the excavator that uses in short-term quartering hammer to carry out work.But for the excavator of long-time use quartering hammer, this circuit easily causes the too high problem of hydraulic oil temperature.
For the too high problem of hydraulic oil temperature, having at present part excavator is that quartering hammer oil return is directly connected to radiator, after radiator heat-dissipation at oil sump tank.This circuit can cause oil return resistance increment, can reduce radiator application life simultaneously, causes the damage of radiator.
Summary of the invention
In view of this, the present invention controls the oil return direction of the different oil of temperature height by controller, and protection cooler is not damaged, and promote excavator operating efficiency, and cost is low, realizes simple, safe and reliable.
For achieving the above object, concrete technical scheme is as follows:
On the one hand, the device of Based Intelligent Control oil return under broken operating mode is provided, be applicable to excavator, described excavator comprises quartering hammer, fuel tank and main pump, described quartering hammer is provided with oil-in and oil return opening, described oil-in communicates with described main pump, the device of described Based Intelligent Control oil return also comprises reversal valve, cooler, temperature pick up and controller, described reversal valve is provided with import, the first outlet and the second outlet, described import communicates with oil return opening, described the first outlet communicates with fuel tank, described the second outlet communicates with fuel tank by cooler, described fuel tank is connected with main pump by pipeline, described fuel tank, pipeline and main pump form oil circuit control, described temperature pick up is located on oil circuit control, described controller respectively with reversal valve, temperature pick up is connected.
Preferably, described temperature pick up is located on described fuel tank.
Preferably, described temperature pick up is located on the pipeline between described fuel tank and main pump.
Preferably, described reversal valve is mechanical commutation valve.
Preferably, described reversal valve is solenoid operated directional valve.
Preferably, on the oil return opening of described quartering hammer and the oil circuit between fuel tank, be also provided with accumulator.
Preferably, on the oil return opening of described quartering hammer and the oil circuit between cooler, be also provided with one way valve.
Preferably, described reversal valve is two position four-way valves.
On the other hand, provide excavator, comprise the device of Based Intelligent Control oil return under broken operating mode as above.
On the other hand, provide as the method for the Based Intelligent Control oil return of the device of Based Intelligent Control oil return under above-mentioned breaker's condition, comprising:
When described temperature pick up detects temperature >=60～75 ℃ of oil circuit control, described controller is controlled reversal valve and is communicated with import and the second outlet, closes import and first and exports;
When described temperature pick up detects temperature≤50～65 ℃ of oil circuit control, described controller is controlled reversal valve and is communicated with import and the first outlet, closes import and second and exports.
With respect to prior art, the advantage of technical scheme of the present invention has:
1, can protect cooler not to be damaged during cooling down operation, reduce the oil return resistance of quartering hammer simultaneously;
2, can reduce hydraulic oil temperature during heat engine, promote excavator operating efficiency;
3, cost is low, realizes simple, safe and reliable;
4, the intelligent hydraulic oil temperature of controlling, promotes overall performance to greatest extent.
Accompanying drawing explanation
The accompanying drawing that forms a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the embodiment of the present invention.
Wherein, 1 is that quartering hammer, 2 is that fuel tank, 3 is that main pump, 4 is that oil-in, 5 is that oil return opening, 6 is that reversal valve, 7 is that cooler, 8 is that temperature pick up, 9 is controller.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the present invention can combine mutually.
Below with reference to accompanying drawing, embodiments of the invention are done to concrete explaination.
Device and the excavator of Based Intelligent Control oil return under a kind of broken operating mode of embodiments of the invention as shown in Figure 1.Excavator comprises quartering hammer 1, fuel tank 2 and main pump 3.Quartering hammer 1 is provided with oil-in 4 and oil return opening 5.Oil-in 4 communicates with main pump 3.
The device of Based Intelligent Control oil return also comprises reversal valve 6, cooler 7, temperature pick up 8 and controller 9.Reversal valve 6 is provided with import, the first outlet and the second outlet.Import communicates with oil return opening 5, and the first outlet communicates with fuel tank 2, and the second outlet communicates with fuel tank 2 by cooler 7.Fuel tank 2 is connected with main pump 3 by pipeline.Fuel tank 2, pipeline and main pump 3 form oil circuit control.Temperature pick up 8 is located on oil circuit control.Controller 9 is connected with reversal valve 6, temperature pick up 8 respectively.
Based Intelligent Control oil return method, comprising:
When temperature pick up 8 detects temperature >=60～75 ℃ of oil circuit controls, preferably >=70 ℃ time, controller 9 is controlled reversal valves 6 and is communicated with imports and the second outlet, closes import and first and exports;
When temperature pick up 8 detects temperature≤50～65 ℃ of oil circuit controls, preferably≤60 ℃ time, controller 9 is controlled reversal valves 6 and is communicated with imports and the first outlet, closes import and second and exports.
Embodiments of the invention are controlled the oil return direction of the different oil of temperature height by controller, protection cooler is not damaged, and promote excavator operating efficiency, and cost is low, realize simple, safe and reliable.
As shown in fig. 1, in an embodiment of the present invention, preferably temperature pick up 8 is installed on hydraulic oil container 2 or main pump 3 oil-ins, detects in real time hydraulic fluid temperature, and its range is-20 ℃～120 ℃.The data that controller 9 feeds back for real-time collecting temperature pick up 8 are also controlled cut-offfing of reversal valve 6, and reversal valve 6, for receiving controller instruction, changes oil return direction.
In an embodiment of the present invention, when cold machine starts, temperature pick up 8 collects now oil temperature <70 ℃, and controller 9 is controlled reversal valve 6, be preferably solenoid operated directional valve in closed condition, quartering hammer 1 oil return is directly got back to hydraulic oil container 2 by solenoid electric valve;
When excavator work a period of time, temperature pick up 8 collects now oil temperature >=70 ℃, and controller 9 sends instruction to solenoid operated directional valve, and solenoid operated directional valve is opened, and quartering hammer 1 oil return, by solenoid operated directional valve, returns hydraulic oil container 2 after subcooler 7 is cooling;
Excavator worked on after a period of time, and temperature pick up 8 collects now oil temperature≤60 ℃, and controller sends instruction to solenoid operated directional valve, and solenoid operated directional valve cuts out, and quartering hammer 1 oil return is directly got back to hydraulic oil container 2 by solenoid operated directional valve.
Oil return under the embodiments of the invention controlled fragmentation operating mode cooler of whether flowing through plays protection cooler when cold machine, reduces oil return resistance, when heat engine, plays reduction oil temperature, the effect of increasing work efficiency.
In addition, in an embodiment of the present invention, for preventing the frequent break-make of solenoid operated directional valve, electromagnetic valve open oil temperature be set in >=70 ℃, electromagnetic valve reversal valve close oil temperature be set in≤60 ℃.After excavator power-off is shut down, solenoid operated directional valve disconnects automatically.In addition, for weakening broken operating mode oil peak next time, accumulator can be increased on oil return line or oil return is passed through cooler again through one way valve.
In embodiments of the invention, also comprise a kind of excavator, be provided with the device of Based Intelligent Control oil return under broken operating mode described above.Because the device of Based Intelligent Control oil return under above-mentioned broken operating mode has above-mentioned technique effect, therefore, the excavator that is provided with the device of Based Intelligent Control oil return under this fragmentation operating mode also should possess corresponding technique effect, and its specific implementation process is similar to the above embodiments, does not hereby repeat.
Above specific embodiments of the invention be have been described in detail, but it is just as example, the present invention is not restricted to specific embodiment described above.To those skilled in the art, any equivalent modifications that the present invention is carried out and alternative also all among category of the present invention.Therefore, equalization conversion and the modification done without departing from the spirit and scope of the invention, all should contain within the scope of the invention.
Claims (10)
1. the device of Based Intelligent Control oil return under a broken operating mode, be applicable to excavator, described excavator comprises quartering hammer (1), fuel tank (2) and main pump (3), described quartering hammer (1) is provided with oil-in (4) and oil return opening (5), described oil-in (4) communicates with described main pump (3), it is characterized in that, the device of described Based Intelligent Control oil return also comprises reversal valve (6), cooler (7), temperature pick up (8) and controller (9), described reversal valve (6) is provided with import, the first outlet and the second outlet, described import communicates with oil return opening (5), described the first outlet communicates with fuel tank (2), described the second outlet communicates with fuel tank (2) by cooler (7), described fuel tank (2) is connected with main pump (3) by pipeline, described fuel tank (2), pipeline and main pump (3) form oil circuit control, described temperature pick up (8) is located on oil circuit control, described controller (9) respectively with reversal valve (6), temperature pick up (8) is connected.
2. the device of Based Intelligent Control oil return under broken operating mode as claimed in claim 1, is characterized in that, described temperature pick up (8) is located on described fuel tank (2).
3. the device of Based Intelligent Control oil return under broken operating mode as claimed in claim 1, is characterized in that, described temperature pick up (8) is located on the pipeline between described fuel tank (2) and main pump (3).
4. the device of Based Intelligent Control oil return under broken operating mode as claimed in claim 1, is characterized in that, described reversal valve (6) is mechanical commutation valve (6).
5. the device of Based Intelligent Control oil return under broken operating mode as claimed in claim 1, is characterized in that, described reversal valve (6) is solenoid operated directional valve (6).
6. the device of Based Intelligent Control oil return under broken operating mode as claimed in claim 1, is characterized in that, on the oil return opening (5) of described quartering hammer (1) and the oil circuit between fuel tank (2), is also provided with accumulator.
7. the device of Based Intelligent Control oil return under broken operating mode as claimed in claim 1, is characterized in that, on the oil return opening (5) of described quartering hammer (1) and the oil circuit between cooler (7), is also provided with one way valve.
8. the device of Based Intelligent Control oil return under broken operating mode as claimed in claim 1, is characterized in that, described reversal valve (6) is two position four-way valves.
9. an excavator, is characterized in that, comprises the device of Based Intelligent Control oil return under the broken operating mode as described in claim 1 to 8 any one.
10. a method for the Based Intelligent Control oil return of the device of Based Intelligent Control oil return under broken operating mode as claimed in claim 1, is characterized in that, comprising:
When described temperature pick up (8) detects temperature >=60～75 ℃ of oil circuit control, described controller (9) is controlled reversal valve (6) and is communicated with import and the second outlet, closes import and first and exports;
When described temperature pick up (8) detects temperature≤50～65 ℃ of oil circuit control, described controller (9) is controlled reversal valve (6) and is communicated with import and the first outlet, closes import and second and exports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310700493.5A CN103696454B (en) | 2013-12-18 | 2013-12-18 | The device of Based Intelligent Control oil return under broken operating mode, excavator and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310700493.5A CN103696454B (en) | 2013-12-18 | 2013-12-18 | The device of Based Intelligent Control oil return under broken operating mode, excavator and method |
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| CN103696454A true CN103696454A (en) | 2014-04-02 |
| CN103696454B CN103696454B (en) | 2016-03-02 |
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| CN201310700493.5A Expired - Fee Related CN103696454B (en) | 2013-12-18 | 2013-12-18 | The device of Based Intelligent Control oil return under broken operating mode, excavator and method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107165894A (en) * | 2017-07-03 | 2017-09-15 | 山推工程机械股份有限公司 | A kind of Oil-temperature control system and hydraulic system of bulldozer |
| CN110565730A (en) * | 2019-09-20 | 2019-12-13 | 三一重机有限公司 | Hydraulic pipeline switching assembly, hydraulic pipeline and excavator |
| CN110939171A (en) * | 2019-12-27 | 2020-03-31 | 三一重机有限公司 | Hydraulic system, excavator and control method |
| CN112392088A (en) * | 2019-08-15 | 2021-02-23 | 山东临工工程机械有限公司 | Breaking hammer control method and device |
| CN113550371A (en) * | 2021-06-22 | 2021-10-26 | 徐州徐工挖掘机械有限公司 | Excavator hydraulic oil warming system and control method thereof |
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| CN1432739A (en) * | 2002-01-15 | 2003-07-30 | 陈嘉川 | Current associating and unloading control method for multiple-pump hydraulic system |
| KR20100130034A (en) * | 2009-06-02 | 2010-12-10 | 볼보 컨스트럭션 이큅먼트 에이비 | Excavator with hammer device |
| CN102704525A (en) * | 2012-05-21 | 2012-10-03 | 徐州徐工挖掘机械有限公司 | Hydraulic loop of excavator |
| CN202704525U (en) * | 2012-08-22 | 2013-01-30 | 浙江长兴奥利尔家用电器有限公司 | Material feeding rail of automatic sheet packaging machine |
| CN202850086U (en) * | 2012-09-29 | 2013-04-03 | 江苏巨超重工机械有限公司 | Excavator integrated control unit |
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- 2013-12-18 CN CN201310700493.5A patent/CN103696454B/en not_active Expired - Fee Related
Patent Citations (5)
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| CN1432739A (en) * | 2002-01-15 | 2003-07-30 | 陈嘉川 | Current associating and unloading control method for multiple-pump hydraulic system |
| KR20100130034A (en) * | 2009-06-02 | 2010-12-10 | 볼보 컨스트럭션 이큅먼트 에이비 | Excavator with hammer device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107165894A (en) * | 2017-07-03 | 2017-09-15 | 山推工程机械股份有限公司 | A kind of Oil-temperature control system and hydraulic system of bulldozer |
| CN112392088A (en) * | 2019-08-15 | 2021-02-23 | 山东临工工程机械有限公司 | Breaking hammer control method and device |
| CN110565730A (en) * | 2019-09-20 | 2019-12-13 | 三一重机有限公司 | Hydraulic pipeline switching assembly, hydraulic pipeline and excavator |
| CN110939171A (en) * | 2019-12-27 | 2020-03-31 | 三一重机有限公司 | Hydraulic system, excavator and control method |
| CN110939171B (en) * | 2019-12-27 | 2024-01-26 | 三一重机有限公司 | Hydraulic system, excavator and control method |
| CN113550371A (en) * | 2021-06-22 | 2021-10-26 | 徐州徐工挖掘机械有限公司 | Excavator hydraulic oil warming system and control method thereof |
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| Publication number | Publication date |
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| CN103696454B (en) | 2016-03-02 |
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