CN108591186A - A kind of large-tonnage excavator fluid temperature elevation system and control method - Google Patents
A kind of large-tonnage excavator fluid temperature elevation system and control method Download PDFInfo
- Publication number
- CN108591186A CN108591186A CN201810420134.7A CN201810420134A CN108591186A CN 108591186 A CN108591186 A CN 108591186A CN 201810420134 A CN201810420134 A CN 201810420134A CN 108591186 A CN108591186 A CN 108591186A
- Authority
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- China
- Prior art keywords
- pilot operated
- valve device
- operated valve
- fluid
- oil
- 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.)
- Pending
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims description 10
- 239000003921 oil Substances 0.000 claims abstract description 38
- 239000002828 fuel tank Substances 0.000 claims abstract description 19
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 15
- 230000005611 electricity Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 2
- 239000000295 fuel oil Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/226—Safety arrangements, e.g. hydraulic driven fans, preventing cavitation, leakage, overheating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/62—Cooling or heating means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Component Parts Of Construction Machinery (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of large-tonnage excavator fluid temperature elevation systems, including fuel tank and oil return box；Oil return box is connected with the oiler of counterbalance valve and by-passing valve respectively；The oil outlet of counterbalance valve is connected with the first port of pilot operated valve device, the second port of pilot operated valve device is connected with the oiler of filter, the third port of pilot operated valve device is dissipated by hydraulic oil to be connected with the oiler of filter, and the difference of oil return circuit is realized by the commutation of pilot operated valve device；The oil outlet of by-passing valve is connected with the oiler of filter；The oil outlet of filter is connected with fuel tank.The present invention is only commutated by the fluid of a pilot operated valve device, and extremely frigid zones excavator oil temperature is made to increase rapidly, improves working efficiency, while being also avoided oily dissipate and not impacted by sticky fluid, and failure rate is reduced.
Description
Technical field
The present invention relates to engineering machinery fields, and in particular to a kind of large-tonnage excavator fluid temperature elevation system and controlling party
Method.
Background technology
The large-tonnage excavator job site of extremely frigid zones is operated in opencut mostly, and especially in winter, temperature is extremely low, digs
After pick machine starts, hydraulic oil heating rate is slow, and due to oil viscosity height, and big liquid resistance can cause excavator hydraulic oil radiator
Damage, therefore in winter, the radiator failure rate of extremely frigid zones excavator is very high.
Invention content
It is insufficient according to prior art, a kind of large-tonnage excavator fluid temperature elevation system of present invention offer and control method,
It is only commutated by the fluid of a pilot operated valve device, extremely frigid zones excavator oil temperature is made to increase rapidly, improve working efficiency, while also keeping away
Exempt from oily dissipate not impacted by sticky fluid, reduces failure rate.
The present invention is realized by following technical scheme：
A kind of large-tonnage excavator fluid temperature elevation system, including fuel tank and oil return box；The oil return box respectively with counterbalance valve and side
The oiler of port valve is connected；The oil outlet of the counterbalance valve is connected with the first port of pilot operated valve device, the second end of pilot operated valve device
Mouth is connected with the oiler of filter, and the third port of pilot operated valve device is dissipated by hydraulic oil to be connected with the oiler of filter,
The difference of oil return circuit is realized by the commutation of pilot operated valve device；The oil outlet of the by-passing valve is connected with the oiler of filter；
The oil outlet of the filter is connected with fuel tank.
Preferably, it is additionally provided with solenoid valve, the Single port of the solenoid valve is connected with pilot operated valve device, the another port of solenoid valve
It is connected with heat button switch；After pressing heat button switch, solenoid valve obtains electric commutation, and pilot operated valve device also commutates therewith.
Preferably, temperature sensor is equipped in the fuel tank, which passes through display by the oil temperature measured
Device is shown.
Preferably, the temperature sensor is connected with the arrival end of Vehicle Controller, the outlet end of Vehicle Controller with
Solenoid valve is connected；
When temperature sensor detection oil outlet temperature reaches setting value, Vehicle Controller controls solenoid valve dead electricity, and pilot operated valve device is restored
It is in situ, excavator normal work.
A kind of large-tonnage excavator fluid method for controlling temperature rise, this method are：By changing the fluid commutation of pilot operated valve device, return
Fluid in fuel tank circumvents hydraulic oil and dissipates, and a fluid flows back to fuel tank, another fluid via counterbalance valve, pilot operated valve device, filter
Lease making flows back to fuel tank by by-passing valve, filter, and extremely frigid zones excavator oil temperature is made to increase rapidly.
Preferably, when temperature sensor detects that hydraulic fluid temperature reaches setting value, Vehicle Controller controls electromagnetism
Valve dead electricity, excavator are restored to normal operating conditions, the i.e. right position work of pilot operated valve device.
Advantageous effect of the present invention：
1. in extremely cold environment, so that excavator hydraulic oil liquid is brought rapidly up, improve working efficiency；
2. avoiding excavator hydraulic oil from dissipating to be impacted by sticky hydraulic oil, the scattered failure rate of hydraulic oil is reduced；
3. hydraulic oil container mounting temperature sensor ensures that excavator automatically switches to normal work mould in the temperature for reaching needs
Formula.
Description of the drawings
Fig. 1 is the structure principle chart of the fluid temperature elevation system of the present invention.
Specific implementation mode
Below in conjunction with attached drawing, by specific embodiment, the present invention is further illustrated.
As shown in Figure 1, a kind of large-tonnage excavator fluid temperature elevation system, including fuel tank 6 and oil return box 9；Oil return box 9 is distinguished
It is connected with the oiler of counterbalance valve 3 and by-passing valve 8；The oil outlet of counterbalance valve 3 is connected with the A of pilot operated valve device 2 mouths, pilot operated valve device 2
C mouths be connected with the oiler of filter 5, the B mouths of pilot operated valve device 2 dissipate 4 by hydraulic oil and are connected with the oiler of filter 5
It is logical, the difference of oil return circuit is realized by the commutation of pilot operated valve device 2；The oil outlet of by-passing valve 8 is connected with the oiler of filter 5
It is logical；The oil outlet of filter 5 is connected with fuel tank 6.
The Single port of solenoid valve 1 is connected with pilot operated valve device 2, and the another port of solenoid valve 1 is connected with heat button switch；When by
After lower heat button switch, solenoid valve 1 obtains electric commutation, and pilot operated valve device 2 also commutates therewith.
Further embodiment：Shown in Fig. 1, temperature sensor 7 is equipped in fuel tank 6, which will
The oil temperature measured is shown by display.
More further scheme, shown in Fig. 1, temperature sensor 7 is connected with the arrival end of Vehicle Controller, vehicle-mounted
The outlet end of controller is connected with solenoid valve 1；When temperature sensor 7, which detects oil outlet temperature, reaches setting value, Vehicle Controller
1 dead electricity of solenoid valve is controlled, pilot operated valve device 2 sets back, excavator normal work.
The course of work：
When temperature is extremely low in winter, after excavating machine starting, display shows low-temperature warning signal, presses heat button switch,
Solenoid valve 1 obtains electric commutation, and pilot operated valve device 2 also commutates therewith, and in simple action, the fluid in oil return box 9 circumvents excavator at this time
Hydraulic oil dissipates 4, and a fluid flows back to fuel tank 6 via counterbalance valve 3, pilot operated valve device 2, filter 5, and another fluid lease making is by by-passing valve
8, filter 5 flows back to fuel tank 6.When temperature sensor 7 detects that hydraulic fluid temperature reaches setting value, Vehicle Controller can be automatic
Make 1 dead electricity of solenoid valve（Also it can be turned off manually）, excavator is restored to normal operating conditions, i.e., 2 right position of pilot operated valve device works.
A kind of control method based on above-mentioned large-tonnage excavator fluid temperature elevation system, method are：By changing pilot operated valve device 2
Fluid commutation, the fluid in oil return box 9 circumvents hydraulic oil and dissipates 4, and a fluid is flowed via counterbalance valve 3, pilot operated valve device 2, filter 5
Oil return box 6, another fluid lease making flow back to fuel tank 6 by by-passing valve 8, filter 5, make extremely frigid zones excavator oil temperature it is rapid on
It rises.When temperature sensor 7 detects that hydraulic fluid temperature reaches setting value, Vehicle Controller controls 1 dead electricity of solenoid valve, excavator
It is restored to normal operating conditions, i.e. 2 right position of pilot operated valve device works.
Although with reference to the application is exemplary embodiment described, it is to be understood that, term used be explanation and it is exemplary,
Term and not restrictive.Due to spirit or essence that the application can be embodied in a variety of forms without departing from invention, institute
Should be appreciated that above-described embodiment is not limited to any details above-mentioned, and spirit and model defined by appended claims
The whole variations and remodeling widely explained, therefore fallen into claim or its equivalent scope in enclosing all should be accompanying right and want
It asks and is covered.
Claims (6)
1. a kind of large-tonnage excavator fluid temperature elevation system, it is characterised in that：Including fuel tank（6）And oil return box（9）；
The oil return box（9）Respectively with counterbalance valve（3）And by-passing valve（8）Oiler be connected；
The counterbalance valve（3）Oil outlet and pilot operated valve device（2）First port be connected, pilot operated valve device（2）Second port and mistake
Filter（5）Oiler be connected, pilot operated valve device（2）Third port by hydraulic oil dissipate（4）With filter（5）Oiler phase
Connection, passes through pilot operated valve device（2）Commutation realize oil return circuit difference；
The by-passing valve（8）Oil outlet and filter（5）Oiler be connected；
The filter（5）Oil outlet and fuel tank（6）It is connected.
2. a kind of large-tonnage excavator fluid temperature elevation system according to claim 1, it is characterised in that：It is additionally provided with solenoid valve
（1）, the solenoid valve（1）Single port and pilot operated valve device（2）It is connected, solenoid valve（1）Another port and heat button switch phase
Even；
After pressing heat button switch, solenoid valve（1）Obtain electric commutation, pilot operated valve device（2）Also it commutates therewith.
3. a kind of large-tonnage excavator fluid temperature elevation system according to claim 2, it is characterised in that：In the fuel tank
（6）In be equipped with temperature sensor（7）, the temperature sensor（7）The oil temperature measured is shown by display.
4. a kind of large-tonnage excavator fluid temperature elevation system according to claim 3, it is characterised in that：The temperature sensing
Device（7）It is connected with the arrival end of Vehicle Controller, the outlet end of Vehicle Controller and solenoid valve（1）It is connected；
Work as temperature sensor（7）When detection oil outlet temperature reaches setting value, Vehicle Controller controls solenoid valve（1）Dead electricity, hydraulic control
Valve（2）It sets back, excavator normal work.
5. a kind of control method based on Claims 1-4 any one of them large-tonnage excavator fluid temperature elevation system, special
Sign is：
By changing pilot operated valve device（2）Fluid commutation, oil return box（9）In fluid circumvent hydraulic oil dissipate（4）, a fluid via
Counterbalance valve（3）, pilot operated valve device（2）, filter（5）Flow back to fuel tank（6）, another fluid lease making is by by-passing valve（8）, filter（5）
Flow back to fuel tank（6）, extremely frigid zones excavator oil temperature is made to increase rapidly.
6. a kind of large-tonnage excavator fluid method for controlling temperature rise according to claim 5, it is characterised in that：When temperature passes
Sensor（7）When detecting that hydraulic fluid temperature reaches setting value, Vehicle Controller controls solenoid valve（1）Dead electricity, excavator are restored to
Normal operating conditions, i.e. pilot operated valve device（2）Right position work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810420134.7A CN108591186A (en) | 2018-05-04 | 2018-05-04 | A kind of large-tonnage excavator fluid temperature elevation system and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810420134.7A CN108591186A (en) | 2018-05-04 | 2018-05-04 | A kind of large-tonnage excavator fluid temperature elevation system and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108591186A true CN108591186A (en) | 2018-09-28 |
Family
ID=63619772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810420134.7A Pending CN108591186A (en) | 2018-05-04 | 2018-05-04 | A kind of large-tonnage excavator fluid temperature elevation system and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108591186A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111520377A (en) * | 2020-05-19 | 2020-08-11 | 上海三一重机股份有限公司 | Hydraulic heat dissipation control system, method, device, equipment and engineering machinery |
| 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005043110A1 (en) * | 2005-09-10 | 2007-04-12 | Terex Gmbh | Method for controlling hydraulic fluid temperature especially in excavator with electronic temperature sensor and electro hydraulic flow control valve |
| KR20070048001A (en) * | 2005-11-03 | 2007-05-08 | 현대중공업 주식회사 | Oil cooler & hydraulic line protective device by temperature control for hyd.oil |
| KR20100130034A (en) * | 2009-06-02 | 2010-12-10 | 볼보 컨스트럭션 이큅먼트 에이비 | Excavator with hammer device |
| CN202689078U (en) * | 2012-06-26 | 2013-01-23 | 合肥振宇工程机械有限公司 | Oil return control mechanism of hydraulic system of excavator |
| CN103195124A (en) * | 2013-04-03 | 2013-07-10 | 徐州徐工挖掘机械有限公司 | Excavator return oil pressure control loop |
| CN208185142U (en) * | 2018-05-04 | 2018-12-04 | 徐州徐工矿山机械有限公司 | A kind of oil liquid temperature elevation system and large-tonnage excavator |
-
2018
- 2018-05-04 CN CN201810420134.7A patent/CN108591186A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005043110A1 (en) * | 2005-09-10 | 2007-04-12 | Terex Gmbh | Method for controlling hydraulic fluid temperature especially in excavator with electronic temperature sensor and electro hydraulic flow control valve |
| KR20070048001A (en) * | 2005-11-03 | 2007-05-08 | 현대중공업 주식회사 | Oil cooler & hydraulic line protective device by temperature control for hyd.oil |
| KR20100130034A (en) * | 2009-06-02 | 2010-12-10 | 볼보 컨스트럭션 이큅먼트 에이비 | Excavator with hammer device |
| CN202689078U (en) * | 2012-06-26 | 2013-01-23 | 合肥振宇工程机械有限公司 | Oil return control mechanism of hydraulic system of excavator |
| CN103195124A (en) * | 2013-04-03 | 2013-07-10 | 徐州徐工挖掘机械有限公司 | Excavator return oil pressure control loop |
| CN208185142U (en) * | 2018-05-04 | 2018-12-04 | 徐州徐工矿山机械有限公司 | A kind of oil liquid temperature elevation system and large-tonnage excavator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111520377A (en) * | 2020-05-19 | 2020-08-11 | 上海三一重机股份有限公司 | Hydraulic heat dissipation control system, method, device, equipment and engineering machinery |
| 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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