CN107905881A - A kind of engineering machinery hydraulic independence cooling system - Google Patents
A kind of engineering machinery hydraulic independence cooling system Download PDFInfo
- Publication number
- CN107905881A CN107905881A CN201711170991.8A CN201711170991A CN107905881A CN 107905881 A CN107905881 A CN 107905881A CN 201711170991 A CN201711170991 A CN 201711170991A CN 107905881 A CN107905881 A CN 107905881A
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- radiator
- coolant
- engine
- water pump
- 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
- 238000001816 cooling Methods 0.000 title claims abstract description 29
- 239000002826 coolant Substances 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 20
- 238000011217 control strategy Methods 0.000 claims abstract description 6
- 230000003020 moisturizing effect Effects 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000012188 paraffin wax Substances 0.000 claims description 2
- 230000005855 radiation Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/20—Cooling circuits not specific to a single part of engine or machine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
- F01P5/04—Pump-driving arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/04—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio
- F01P7/044—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio using hydraulic drives
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of engineering machinery hydraulic independence cooling system, engine driving water pump drives coolant flow, and coolant flows through thermostat, radiator inleting pipe enters radiator, then flows back to water pump by radiator outlet pipe；Engine driven Hydraulic Pump, hydraulic motor work, electromagnetic proportion relief valve are in parallel with hydraulic motor；Fan is driven by hydraulic pump motor, and is driven cooling to blow air over radiator and cooled down to coolant；Engine load monitor is used to reflect engine workload state；Temperature sensor is arranged on heat sink inlet position, for gathering heat sink inlet temperature；Electromagnetic proportion relief valve receives the signal of engine load monitor and temperature sensor, and controls to adjust valve port opening according to integrated control strategy, so as to control the rotating speed of fan by way of adjusting bypass hydraulic oil stream amount.So as to fulfill the stability contorting of coolant temperature, working performance of the lifting engineering machinery under changeable working condition.
Description
Technical field
The present invention relates to technical field of engineering machinery, and in particular to a kind of engineering machinery hydraulic independence cooling system.
Background technology
Engineering machinery load is generally large and change is violent, and work Regional Distribution is wide, and environment is various, vehicle motor cooling
There are material impact for the reliability and economy that system performance works vehicle.Current high-end construction machinery product is generally using only
Vertical heat radiation cooling system, rotation speed of the fan realize that coolant temperature control and fan driving are energy saving by coolant temperature feedback control.
In current construction machinery product, independent heat radiation cooling system is widely adopted, its rotation speed of the fan is generally using heat dissipation
Device temperature feedback control method is controlled adjusting.
Radiator temperature feedback：Fan by hydraulic pump, hydraulic motor system drive, electromagnetic proportion relief valve with
Motor is in parallel, and temperature sensor collection heat sink inlet temperature signal, via controller is transformed to current signal and acts on electromagnetism
Proportional pressure control valve, temperature is higher, and electromagnetism valve opening is smaller, so that rotation speed of the fan is higher.
1st, existing cooling system independence cooling system control strategy is passive feedback, i.e. heat sink inlet temperature
Change and trigger rotation speed of the fan change.Since engineer machinery operation Operation mode cycle changes, current control strategy is easy to cause cooling
Liquid temperature degree fluctuating range is larger, influences product working performance.
2nd, when operation vehicle operation is in moment high load working condition, coolant temperature can be quick after certain time delay
Rise, current independent heat radiation cooling system control strategy can cause coolant temperature moment to be leapt high, influence product working performance.
The content of the invention
Purpose：In order to overcome the deficiencies in the prior art, the present invention provides a kind of engineering machinery hydraulic and independently radiates
System, pilot control is carried out by engine load monitor to rotation speed of the fan, and comprehensive radiator inlet temperature signal is to wind
Fan rotating speed and carry out feedback control, so as to fulfill the stability contorting of coolant temperature.
Technical solution：In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of engineering machinery hydraulic independence cooling system, it is characterised in that：Including engine, engine load monitor, water pump,
Thermostat, radiator inleting pipe, radiator, radiator outlet pipe, hydraulic pump, hydraulic motor, temperature sensor, solenoid-operated proportional overflow
Flow valve, fan；
Engine driving water pump drives coolant flow, and coolant flows through thermostat, radiator inleting pipe, subsequently into heat dissipation
Device, then flows back to water pump by radiator outlet pipe；
Engine driven Hydraulic Pump, hydraulic motor work, electromagnetic proportion relief valve are in parallel with hydraulic motor；The fan is by hydraulic pressure
Pump motor drives, and drives cooling to blow air over radiator and cool down to coolant；
The engine load monitor is set on the engine, for reflecting engine workload state；The temperature passes
Sensor is arranged on heat sink inlet position, for gathering heat sink inlet temperature；Engine load monitor, temperature sensor are equal
It is connected with electromagnetic proportion relief valve, the electromagnetic proportion relief valve receives the letter of engine load monitor and temperature sensor
Number, and valve port opening is controlled to adjust according to integrated control strategy, so as to be controlled by way of adjusting bypass hydraulic oil stream amount
The rotating speed of fan.
Preferably, the engineering machinery hydraulic independence cooling system, it is characterised in that：The thermostat is stone
Wax pattern, for controlling coolant large and small cycles.
Preferably, the engineering machinery hydraulic independence cooling system, it is characterised in that：Further include swelling water
Case, the expansion tank is used to store coolant, between the outlet access radiator inleting pipe and radiator of the expansion tank,
By certain liq and AIR Proportional filling coolant, the regulating system pressure when coolant temperature rises and declines.
Further, the engineering machinery hydraulic independence cooling system, it is characterised in that：Filling pipe is further included, it is described
Filling pipe one end connects expansion tank, and the other end connects water pump through radiator outlet pipe；The filling pipe be used for adjust water pump into
Mouth pressure, when unit fixed on water pump suction pressure tends to negative pressure, coolant carries out moisturizing through filling pipe from expansion tank to water pump.
Further, the engineering machinery hydraulic independence cooling system, it is characterised in that：Hydraulic oil container is further included, institute
The hydraulic oil for stating hydraulic motor flows back to hydraulic oil container.The hydraulic oil of the electromagnetic proportion relief valve outflow equally flows back to hydraulic oil
Case.
Beneficial effect：Engineering machinery hydraulic independence cooling system provided by the invention, can mend existing system pressure
To repay and adjust, system pressure is changed with the change of load, power loss is small, and by control valve therein and control system
Connection, the operating and normal protection that can realize air-conditioning system are cut off, and control valve is equipped with safe pressure defencive function, when being
It is automatic to carry out pressure off-load when system pressure is higher than setting value, to ensure pressure differential needed for host work.1st, electromagnetic proportion relief valve
By engine load monitor to rotation speed of the fan carry out pilot control, can solve engine load moment increase caused by
The problem of coolant temperature moment leaps high, improves product working performance.2nd, overall engine load monitoring device of the present invention and dissipate
Hot device inlet temperature signal is controlled rotation speed of the fan, can realize the stability contorting of coolant temperature, improves product work
Make performance.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
In figure：1. 5. thermostat of engine 2. engine load monitor, 3. water pump, 4. engine cylinder body, 6. radiator into
12. hydraulic motor of water pipe 7. expansion tank, 8. filling pipe, 9. water radiator, 10. hydraulic oil container, 11. fan, 13. hydraulic pressure
Pump 14. radiator outlet pipe, 15. temperature sensor, 16. electromagnetic proportion relief valve.
Embodiment
The present invention is further described with reference to specific embodiment.
As shown in Figure 1, be a kind of engineering machinery hydraulic independence cooling system, including the driving of engine-cooling system, fan
And revolution speed control system；Specifically include：Engine 1, engine load monitor 2, water pump 3, engine cylinder body 4, thermostat 5,
Radiator inleting pipe 6, expansion tank 7, filling pipe 8, radiator 9, hydraulic oil container 10, fan 11, hydraulic pump 13, hydraulic motor
12nd, radiator outlet pipe 14, temperature sensor 15, electromagnetic proportion relief valve 16.
Engine 1 drives water pump 3 to drive coolant flow, and coolant flows through thermostat 5, radiator inleting pipe 6, Ran Houjin
Enter radiator 9, water pump 3 is then flowed back to by radiator outlet pipe 14；
Engine 1 drives hydraulic pump 13, the work of 12 system of hydraulic motor, and then driving fan 11 rotates, electromagnetic proportion relief valve
16 is in parallel with hydraulic motor 12；The fan 11 is driven by hydraulic pump motor 12, and drives cooling to blow air over radiator 9 to cooling
Liquid cools down；
The engine load monitor 2 is used to reflect engine workload state, and the temperature sensor 15 is arranged on scattered
Hot device entrance location, for gathering heat sink inlet temperature；The temperature sensor 15 is arranged on heat sink inlet position, is used for
Gather heat sink inlet temperature；Engine load monitor 2, temperature sensor 15 are connected with electromagnetic proportion relief valve 16, institute
The signal that electromagnetic proportion relief valve 16 receives engine load monitor 2 and temperature sensor 15 is stated, and according to Comprehensive Control plan
Valve port opening is slightly controlled to adjust, so as to control the rotating speed of fan 11 by way of adjusting bypass hydraulic oil stream amount.Electromagnetism ratio
Example overflow valve 16 carries out rotation speed of the fan pilot control, and comprehensive radiator inlet temperature signal by engine load monitor
Feedback control is carried out to rotation speed of the fan, so as to fulfill the stability contorting of coolant temperature.
The engine load monitor 2 reflects engine behavior, its signal transmission is to electromagnetic proportion relief valve 16.
Thermic load is produced under corresponding engine load and acts on cooling system, coolant temperature is increased.
The temperature sensor 15 gathers heat sink inlet temperature, its signal transmission is to electromagnetic proportion relief valve 16.
The hydraulic oil of the hydraulic motor 12 flows back to hydraulic oil container 10.The hydraulic oil that the electromagnetic proportion relief valve 16 flows out
Flow back to hydraulic oil container 10.
The thermostat 5 is paraffin wax type, for controlling coolant large and small cycles.
The expansion tank 7 is used to store coolant, outlet access radiator inleting pipe 6 and the radiator 9 of expansion tank 7
Between, coolant is filled by certain liq and AIR Proportional, the regulating system pressure when coolant temperature rises and declines.
Described 8 one end of filling pipe connects expansion tank 7, and the other end connects water pump 3 through radiator outlet pipe 14；The moisturizing
Pipe 8 is used to adjust 3 inlet pressure of water pump, and when 3 inlet pressure of water pump tends to negative pressure, coolant is from expansion tank 7 through filling pipe 8
Moisturizing is carried out to water pump.
The above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (6)
- A kind of 1. engineering machinery hydraulic independence cooling system, it is characterised in that：Including engine, engine load monitor, water Pump, thermostat, radiator inleting pipe, radiator, radiator outlet pipe, hydraulic pump, hydraulic motor, temperature sensor, electromagnetism ratio Example overflow valve, fan；Engine driving water pump drives coolant flow, and coolant flows through thermostat, radiator inleting pipe, subsequently into heat dissipation Device, then flows back to water pump by radiator outlet pipe；Engine driven Hydraulic Pump, hydraulic motor work, electromagnetic proportion relief valve are in parallel with hydraulic motor；The fan is by hydraulic pressure Pump motor drives, and drives cooling to blow air over radiator and cool down to coolant；The engine load monitor is set on the engine, for reflecting engine workload state；The temperature passes Sensor is arranged on heat sink inlet position, for gathering heat sink inlet temperature；Engine load monitor, temperature sensor are equal It is connected with electromagnetic proportion relief valve, the electromagnetic proportion relief valve receives the letter of engine load monitor and temperature sensor Number, and valve port opening is controlled to adjust according to integrated control strategy, so as to be controlled by way of adjusting bypass hydraulic oil stream amount The rotating speed of fan.
- 2. engineering machinery hydraulic independence cooling system according to claim 1, it is characterised in that：The thermostat is paraffin Type, for controlling coolant large and small cycles.
- 3. engineering machinery hydraulic independence cooling system according to claim 1, it is characterised in that：Further include expansion tank, The expansion tank is used to store coolant, between the outlet access radiator inleting pipe and radiator of the expansion tank, presses Certain liq is with AIR Proportional filling coolant, the regulating system pressure when coolant temperature rises and declines.
- 4. engineering machinery hydraulic independence cooling system according to claim 3, it is characterised in that：Filling pipe is further included, institute Filling pipe one end connection expansion tank is stated, the other end connects water pump through radiator outlet pipe；The filling pipe is used to adjust water pump Inlet pressure, when unit fixed on water pump suction pressure tends to negative pressure, coolant carries out moisturizing through filling pipe from expansion tank to water pump.
- 5. engineering machinery hydraulic independence cooling system according to claim 1, it is characterised in that：Further include hydraulic oil container, The hydraulic oil of the hydraulic motor flows back to hydraulic oil container.
- 6. engineering machinery hydraulic independence cooling system according to claim 5, it is characterised in that：The solenoid-operated proportional overflow The hydraulic oil of valve outflow flows back to hydraulic oil container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711170991.8A CN107905881A (en) | 2017-11-22 | 2017-11-22 | A kind of engineering machinery hydraulic independence cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711170991.8A CN107905881A (en) | 2017-11-22 | 2017-11-22 | A kind of engineering machinery hydraulic independence cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107905881A true CN107905881A (en) | 2018-04-13 |
Family
ID=61846969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711170991.8A Pending CN107905881A (en) | 2017-11-22 | 2017-11-22 | A kind of engineering machinery hydraulic independence cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107905881A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145276A (en) * | 2020-09-30 | 2020-12-29 | 郑州铁路职业技术学院 | Heat radiation system of engine |
| CN112963283A (en) * | 2021-03-09 | 2021-06-15 | 徐工集团工程机械股份有限公司道路机械分公司 | Engine preheating system and preheating method thereof |
| CN114294087A (en) * | 2021-03-05 | 2022-04-08 | 徐州徐工矿业机械有限公司 | System and method for adjusting heat dissipation power of engine based on temperature factor priority |
| CN114837790A (en) * | 2022-05-13 | 2022-08-02 | 徐州徐工基础工程机械有限公司 | Heat balance management system and management strategy for explosion-proof diesel engine |
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| CN203308563U (en) * | 2013-05-08 | 2013-11-27 | 陈益楷 | Bilateral backflow automobile engine cooling system |
| CN203335218U (en) * | 2013-07-26 | 2013-12-11 | 安徽凯力达液压科技有限公司 | Automobile engine intelligent cooling system |
| CN103541389A (en) * | 2013-09-24 | 2014-01-29 | 徐州徐工特种工程机械有限公司 | Adjustable independent heat dissipation device of loader-digger |
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| CN207598340U (en) * | 2017-11-22 | 2018-07-10 | 徐工集团工程机械有限公司 | A kind of engineering machinery hydraulic independence cooling system |
-
2017
- 2017-11-22 CN CN201711170991.8A patent/CN107905881A/en active Pending
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| JPH08121166A (en) * | 1994-10-31 | 1996-05-14 | Aisin Seiki Co Ltd | Cooling system for vehicle |
| CN1274405A (en) * | 1998-07-23 | 2000-11-22 | 沙厄股份有限公司 | Hydraulic fan drive system having non-dedicated flow source |
| JP2006037863A (en) * | 2004-07-28 | 2006-02-09 | Hitachi Constr Mach Co Ltd | Cooling device of construction machine |
| JP2006045808A (en) * | 2004-08-02 | 2006-02-16 | Shin Caterpillar Mitsubishi Ltd | Drive circuit of hydraulic motor for cooling fan of construction machinery |
| WO2009119407A1 (en) * | 2008-03-25 | 2009-10-01 | 株式会社小松製作所 | Fan drive controlling device and construction machine |
| CN202832752U (en) * | 2012-07-16 | 2013-03-27 | 山推工程机械股份有限公司 | Double-fan temperature control cooling system |
| CN203308563U (en) * | 2013-05-08 | 2013-11-27 | 陈益楷 | Bilateral backflow automobile engine cooling system |
| CN203335218U (en) * | 2013-07-26 | 2013-12-11 | 安徽凯力达液压科技有限公司 | Automobile engine intelligent cooling system |
| CN103541389A (en) * | 2013-09-24 | 2014-01-29 | 徐州徐工特种工程机械有限公司 | Adjustable independent heat dissipation device of loader-digger |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145276A (en) * | 2020-09-30 | 2020-12-29 | 郑州铁路职业技术学院 | Heat radiation system of engine |
| CN114294087A (en) * | 2021-03-05 | 2022-04-08 | 徐州徐工矿业机械有限公司 | System and method for adjusting heat dissipation power of engine based on temperature factor priority |
| CN114294087B (en) * | 2021-03-05 | 2023-02-28 | 徐州徐工矿业机械有限公司 | System and method for adjusting heat dissipation power of engine based on temperature factor priority |
| CN112963283A (en) * | 2021-03-09 | 2021-06-15 | 徐工集团工程机械股份有限公司道路机械分公司 | Engine preheating system and preheating method thereof |
| CN112963283B (en) * | 2021-03-09 | 2022-11-15 | 徐工集团工程机械股份有限公司道路机械分公司 | Engine preheating system and preheating method thereof |
| CN114837790A (en) * | 2022-05-13 | 2022-08-02 | 徐州徐工基础工程机械有限公司 | Heat balance management system and management strategy for explosion-proof diesel engine |
| CN114837790B (en) * | 2022-05-13 | 2024-03-12 | 徐州徐工基础工程机械有限公司 | Explosion-proof diesel engine heat balance management system and management strategy |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220715 Address after: No.26 tuolanshan Road, Xuzhou Economic and Technological Development Zone, Xuzhou City, Jiangsu Province Applicant after: Jiangsu Xugong Construction Machinery Research Institute Co.,Ltd. Address before: 221004 26 Jinshan Road, Jinshan Bridge Economic Development Zone, Xuzhou, Jiangsu Applicant before: XCMG CONSTRUCTION MACHINERY Co.,Ltd. |
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Application publication date: 20180413 |