CN103741760B - Hydraulic oil high-temperature protection method - Google Patents
Hydraulic oil high-temperature protection method Download PDFInfo
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- CN103741760B CN103741760B CN201310725826.XA CN201310725826A CN103741760B CN 103741760 B CN103741760 B CN 103741760B CN 201310725826 A CN201310725826 A CN 201310725826A CN 103741760 B CN103741760 B CN 103741760B
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- 239000010720 hydraulic oil Substances 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000003921 oil Substances 0.000 claims abstract description 18
- 239000012530 fluid Substances 0.000 abstract description 4
- 230000003292 diminished effect Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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- Fluid-Pressure Circuits (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The open a kind of hydraulic oil high-temperature protection method of the present invention, it comprises the steps: step one, and when the temperature of hydraulic efficiency oil is more than 87 DEG C, the electric current flowing to moment of torsion Controlling solenoid valve can be reduced 50% by electrical control system; Step 2, continues, and below the temperature decrease to 83 DEG C of temperature hydraulic efficiency oil reducing hydraulic efficiency oil, so, electrical control system will no longer reduce the magnitude of current flowing to moment of torsion Controlling solenoid valve. By hydraulic oil high-temperature protection method of the present invention, when hydraulic oil temperature rises to certain, allow electrical control system regulate the output rating of pump, output rating is diminished, hydraulic fluid temperature is reduced. Until decrease in temperature is to normal working range.
Description
Technical field:
The present invention relates to hydraulic oil high-temperature protection method.
Background technology:
Excavator, is excavate higher or lower than the material holding machine face with scraper bowl, and loads carrier vehicle or unload the earthmover to dump. The material that excavator excavates is soil, coal, silt and the Soil and Rock after pre-pine mainly. From the development of engineering machinery in recent years, the development of excavator is relatively very fast, and excavator has become one of topmost engineering machinery in engineering construction.
Wherein excavator is when frequent operation, or the summer in sweltering heat, and when digging machine heat radiation is not good, hydraulic fluid temperature is higher, like this hydro-pump and whole hydraulic efficiency system is had infringement.
Therefore, necessary prior art is improved the deficiency solving prior art.
Summary of the invention:
It is an object of the invention to: providing a kind of hydraulic oil high-temperature protection method, it can protect hydro-pump and whole hydraulic efficiency system.
The present invention adopts following technical scheme: a kind of hydraulic oil high-temperature protection method, it comprises the steps
Step one: when the temperature of hydraulic efficiency oil is more than 87 DEG C, the electric current flowing to moment of torsion Controlling solenoid valve can be reduced 50% by electrical control system;
Step 2: continue, reduces the temperature of hydraulic efficiency oil, and below the temperature decrease to 83 DEG C of hydraulic efficiency oil, so, electrical control system will no longer reduce the magnitude of current flowing to moment of torsion Controlling solenoid valve.
In above-mentioned steps, if the temperature of hydraulic efficiency oil rises to more than 92 DEG C on continuing, the electric current flowing to moment of torsion Controlling solenoid valve can be reduced 100% by electrical control system, and after below the temperature decrease to 88 DEG C of hydraulic efficiency oil, the magnitude of current flowing to moment of torsion Controlling solenoid valve is only reduced 50% by electrical control system.
The present invention has following useful effect: by hydraulic oil high-temperature protection method of the present invention, when hydraulic oil temperature rises to certain, allows electrical control system regulate the output rating of pump, output rating is diminished, hydraulic fluid temperature is reduced. Until decrease in temperature is to normal working range.
Accompanying drawing illustrates:
Fig. 1 is the schematic flow sheet of hydraulic oil high-temperature protection method of the present invention.
Embodiment:
Please refer to shown in Fig. 1; hydraulic oil high-temperature protection method of the present invention, when hydraulic oil temperature rises to certain, allows electrical control system regulate the output rating of pump, output rating is diminished; hydraulic fluid temperature is reduced, until decrease in temperature is to normal working range.
Hydraulic oil high-temperature protection method of the present invention specifically comprises the steps:
Step one: when the temperature of hydraulic efficiency oil is more than 87 DEG C, the electric current flowing to moment of torsion Controlling solenoid valve can be reduced 50% by electrical control system;
Step 2: continue, reduces the temperature of hydraulic efficiency oil, and below the temperature decrease to 83 DEG C of hydraulic efficiency oil, so, electrical control system will no longer reduce the magnitude of current flowing to moment of torsion Controlling solenoid valve.
In above-mentioned, if rising to more than 92 DEG C in the temperature continuation of hydraulic efficiency oil, the electric current that electrical control system can flow to moment of torsion Controlling solenoid valve reduces 100%. After below the temperature decrease to 88 DEG C of hydraulic efficiency oil, the magnitude of current flowing to moment of torsion Controlling solenoid valve is only reduced 50% by electrical control system.
By hydraulic oil high-temperature protection method of the present invention, or in the summer of digging machine frequent operation in sweltering heat, digging machine can better dispel the heat, and then protection hydro-pump and whole hydraulic efficiency system.
The above is only the preferred embodiment of the present invention, it should be noted that for those skilled in the art, can also make some improvement under the premise without departing from the principles of the invention, and these improvement also should be considered as protection scope of the present invention.
Claims (2)
1. a hydraulic oil high-temperature protection method, it is characterised in that: comprise the steps
Step one: when the temperature of hydraulic efficiency oil is more than 87 �� of C, the electric current flowing to moment of torsion Controlling solenoid valve can be reduced 50% by electrical control system;
Step 2: continue, reduces the temperature of hydraulic efficiency oil, and as temperature decrease to 83 �� below the C of hydraulic efficiency oil, so, electrical control system will no longer reduce the magnitude of current flowing to moment of torsion Controlling solenoid valve.
2. hydraulic oil high-temperature protection method as claimed in claim 1; it is characterized in that: in above-mentioned steps; if the temperature of hydraulic efficiency oil rises to 92 �� of more than C on continuing; the electric current flowing to moment of torsion Controlling solenoid valve can be reduced 100% by electrical control system; after temperature decrease to 88 �� below the C of hydraulic efficiency oil, the magnitude of current flowing to moment of torsion Controlling solenoid valve is only reduced 50% by electrical control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310725826.XA CN103741760B (en) | 2013-12-25 | 2013-12-25 | Hydraulic oil high-temperature protection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310725826.XA CN103741760B (en) | 2013-12-25 | 2013-12-25 | Hydraulic oil high-temperature protection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103741760A CN103741760A (en) | 2014-04-23 |
| CN103741760B true CN103741760B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310725826.XA Active CN103741760B (en) | 2013-12-25 | 2013-12-25 | Hydraulic oil high-temperature protection method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173068B (en) * | 2019-12-31 | 2021-03-16 | 中联重科股份有限公司 | Temperature self-adaptive control method and system for engineering machinery and engineering machinery |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4832909B2 (en) * | 2006-01-31 | 2011-12-07 | 能美防災株式会社 | Temperature drop spray system |
| CN101230854B (en) * | 2008-02-02 | 2010-07-14 | 宝鸡宝石特种车辆有限责任公司 | Multi-mode control method and apparatus for electrically controlling hydraulic oil pump by hydraulic drawworks |
| JP5259525B2 (en) * | 2009-08-12 | 2013-08-07 | 株式会社日立カーエンジニアリング | Hydraulic supply device |
| CN102155475A (en) * | 2011-03-23 | 2011-08-17 | 徐州赫思曼电子有限公司 | Device for controlling hydraulic system and method |
| CN202251222U (en) * | 2011-10-14 | 2012-05-30 | 沈阳矿山机械有限公司 | Anti-explosion hydrocylinder for tunnelling machine |
| CN102691698B (en) * | 2012-06-20 | 2015-07-15 | 苏州世力源科技有限公司 | Method for preventing hydraulic impact table oil source from raising temperature |
| CN102777272A (en) * | 2012-07-23 | 2012-11-14 | 中联重科股份有限公司渭南分公司 | Overload protection control equipment, method and system and engineering machinery |
| CN202833442U (en) * | 2012-09-27 | 2013-03-27 | 天津山河装备开发有限公司 | Crane hydraulic heat-dissipation electric control system |
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| CN103741760A (en) | 2014-04-23 |
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Effective date of registration: 20180820 Address after: 214500 Huaqiao road 18, Da Jue Industrial Zone, Jingjiang, Taizhou, Jiangsu Patentee after: JINGJIANG YIKAI VENTILATION EQUIPMENT Co.,Ltd. Address before: 545005 No. 273 Liu Yong Road, Liu Nan District, Liuzhou, the Guangxi Zhuang Autonomous Region Patentee before: LIUZHOU ZHENGLING GROUP Co.,Ltd. |
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Effective date of registration: 20240820 Address after: No. 68-10, North 3rd Ring Road, Chengbei Park, Jingjiang Economic Development Zone, Taizhou, Jiangsu 214500 Patentee after: Jiangsu Wenda Transmission Technology Co.,Ltd. Country or region after: China Address before: 214500 Huaqiao road 18, Da Jue Industrial Zone, Jingjiang, Taizhou, Jiangsu Patentee before: JINGJIANG YIKAI VENTILATION EQUIPMENT Co.,Ltd. Country or region before: China |
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