CN102979744A - Engineering machinery full hydraulic automatic air cooling system - Google Patents
Engineering machinery full hydraulic automatic air cooling system Download PDFInfo
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- CN102979744A CN102979744A CN2011102618768A CN201110261876A CN102979744A CN 102979744 A CN102979744 A CN 102979744A CN 2011102618768 A CN2011102618768 A CN 2011102618768A CN 201110261876 A CN201110261876 A CN 201110261876A CN 102979744 A CN102979744 A CN 102979744A
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Abstract
The invention provides an engineering machinery full hydraulic automatic air cooling system which is capable of achieving multipoint simultaneous control. The engineering machinery full hydraulic automatic air cooling system comprises a motor, a hydraulic oil pump, a hydraulic connection pipeline, a hydraulic motor, a fan, radiators, a plurality of groups of temperature control valves connected with each other in series, a hydraulic oil tank and circulatory systems, wherein the motor is connected with the hydraulic oil pump and drives the hydraulic oil pump, the oil tank is connected with an input end of the hydraulic oil pump through the connection pipeline, an output end of the hydraulic oil pump is connected with the hydraulic motor and input ends of the temperature control valves through the connection pipeline, the hydraulic motor and the temperature control valves are connected with the oil tank, a power output shaft of the hydraulic motor is connected with the fan, the fan rotates to conduct forced cooling of a radiator I of a circulatory system IV, a radiator II of a circulatory system V, and a radiator III of a system VI, and the circulatory system IV, the circulatory system V, and the system VI need cooling. The engineering machinery full hydraulic automatic air cooling system has the advantages of being simple in structure, low in volume, low in cost, high in cooling efficiency and capable of ensuring that each working system of an engineering machinery works well.
Description
Technical field
The invention belongs to engineering machinery cooling equipment technical field, particularly a kind of Full-hydraulic automatic air cooling system of engineering machinery.
Background technique
Because energy shortage and environmental pollution, energy-saving and emission-reduction have become the main theory of current manufacturing industry and technology pursue, engineering machinery is to provide power to finish by diesel engine to travel and operation, power system of motor so, the Hydraulic Power Transmission System of engineer operation, the speed change running gears of torque converter etc. all must operation could become with the input Conversion of Energy of minimum the large delivery efficiency of trying one's best, thereby realize energy-saving and emission-reduction under rational processing temperature.The task of engineering machinery automatic cooling system guarantees that exactly each work system fan when the operating environment temperature is low does not rotate, and energy saving makes system be warming up to the optimum working temperature state.The working efficiency of raising system.Too high when operating ambient temperature, when surpassing set temperature, the operating temperature of system automatically implements to force cooling to keep the normal operation of equipment.
Cooling system on the engineering machinery adopts the direct-connected fan of motor more at present, no matter whether the height of ambient temperature and work system need cooling, it rotates with engine synchronization all the time, his autophage energy also affects each system's temperature rise in that ambient temperature is low when not needing to cool off, reduced working efficiency, and the not good temperature rise that can not control each system of its cooling effect when ambient temperature is too high, make each system's cisco unity malfunction, the revolution that the revolution of wanting to improve fan must improve motor namely wastes energy and also can produce new temperature rise.
And some high-end and high-grade type import adopts the Electro-hydraulic drive cooling system more, and the shortcoming of this system is:
1, cost is high.
2, principle is complicated: from temperature sampling circuit, and the control comparison circuit, electric drive at the transformer that is removed to drive proportional control valve or plunger pump by driver, drives fan motor by metering pump or Variable plunger pump again and rotates, and realizes cooling.
3, because complex structure, node are many, cause the fault point many, and engineering machinery requires all-weather field operation, owing to electric electronic element is many, anti-external environmental interference ability is so this system reliability is low.
Summary of the invention
The object of the invention is to overcome above-mentioned technical deficiency, provide a kind of simple in structure, volume is little, cost is low, cooling effectiveness is high, reliability is high, and can realize the all-hydraulic automatic cooling system of engineering machinery that multiple spot is controlled simultaneously.
The technical solution used in the present invention is as follows: the all-hydraulic automatic cooling system of engineering machinery, it comprises motor, hydraulic-pressure pump, the hydraulic connecting pipeline, oil hydraulic motor, fan, radiator, the expansion of liquids thermostat valve of many group series connection, hydraulic oil container, hand-operated forced cold switch and each need each circulatory system of cooling, it is characterized in that: motor connects and the driving hydraulic-pressure pump, the fuel tank connecting pipeline is connected with the input end of hydraulic-pressure pump, the hydraulic oil delivery side of pump is connected to the input end of oil hydraulic motor and thermostat valve with connecting pipeline, the output terminal of the hand-operated forced cold switch of oil hydraulic motor and thermostat valve series connection is connected to hydraulic oil container, the pto＝power take-off of oil hydraulic motor connects fan, and the fan rotation can be to each circulatory system I that need to cool off, II, the radiator IV of III, V, VI is forced cooling.A plurality of thermostat valves are set, a plurality of thermostat valves are connected in series, when at this moment the sense temperature of arbitrary thermostat valve setting overflows, the hydraulic oil circuit of hydraulic-pressure pump output is turn-offed in the capital, force hydraulic-pressure pump to drive oil hydraulic motor and drive the fan rotation, the system that controls is carried out cooling, thereby reached the purpose of multiple spot control cooling.On the thermostat valve tandem tap oil circuit hand-operated forced cold switch is housed.Driving hydraulic-pressure pump is metering pump.
The all-hydraulic automatic cooling system of engineering machinery comprises motor, quantitative hydraulic oil pump, hydraulic connecting pipeline, oil hydraulic motor, fan, radiator, organizes expansion of liquids thermostat valve, hydraulic oil container more.Be characterized in that motor connects and the driving hydraulic-pressure pump, fuel tank is connected with the input end of hydraulic-pressure pump by hydraulic pipe line, the hydraulic oil delivery side of pump is connected to the input end of oil hydraulic motor and thermostat valve with hydraulic pipe line, the output terminal of oil hydraulic motor and thermostat valve is connected to hydraulic oil container with hydraulic pipe line, the pto＝power take-off of oil hydraulic motor connects fan, and the fan rotation can be forced cooling to the radiator of each system.When the temperature of system is lower than the temperature of setting, thermostat valve does not start, and thermostat valve is in opening state, and the hydraulic oil of the hydraulic-pressure pump output this moment thermostat valve of flowing through is got back to hydraulic oil container, hydraulic oil by the thermostat valve short circuit do not have power to go to drive oil hydraulic motor rotation, so fan is not worked.When the temperature of system is higher than the temperature of setting, the temperature sensing liquid of thermostat valve begins to expand temp .-control valve is turn-offed, the hydraulic oil of hydraulic-pressure pump output only has by oil hydraulic motor just can get back to hydraulic oil container, hydraulic oil makes it rotarily drive the fan rotation during by motor, has realized the pressure cooling to the system radiating device.The hydraulic switch of thermostat valve is opened again and is made hydraulic oil short circuit oil sump tank when the drop in temperature of system is following to the set-point.Oil hydraulic motor lost again hydraulic driving power and stopped rotation this moment.Thereby realized the automatic cooling function of temperature.On the basis of the above N thermostat valve is connected in series, when at this moment the sense temperature of arbitrary thermostat valve setting overflows, the hydraulic oil circuit of hydraulic-pressure pump output is turn-offed in the capital, forces hydraulic-pressure pump to drive oil hydraulic motor and drives the fan rotation, and the system that controls is carried out cooling.Thereby reached the purpose of multiple spot control cooling.Manually force cold switch if add one at thermostat valve tandem tap oil circuit, can also realize artificial special purpose of forcing cooling.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is left view of the present invention.
Fig. 3 is working principle schematic representation of the present invention.
Among the figure: the 1-fuel tank; The 2-connecting tube; 3-hydraulic-pressure pump (quantitative gear pump); The 4-motor; The 5-hydraulic oil circulatory system; The 6-engine water tank circulatory system; 7-torque-converters oil circulating system; The 8-thermostat valve; The 9-oil hydraulic motor; The 10-fan; The 11-hydraulic oil radiator; The 12-radiator of water tank; 13-torque-converters radiator; The hand-operated forced cold switch of 14-;
Advantage of the present invention is: although the direct-connected and synchronous rotary of 1 motor and hydraulic-pressure pump, the output hydraulic pressure oil of oil pump is through the direct oil sump tank of thermostat valve when not needing to cool off, and output loading pressure is zero, does not have power loss (power=flow * pressure).2, the discharge capacity of the ratio drive motor of the output discharge capacity of hydraulic-pressure pump design is large, thereby the rotation speed of the fan that motor drives is higher than the rotating speed (can design arbitrarily) of motor has reached high efficiency cooling, reduce the radiator volume, reduce the cost of radiator, save consumption and the installing space of non-ferrous metal (copper, aluminium).3, without any electrical apparatus element and circuit control, so reliability is high, the life-span is long.
Embodiment
Motor among the present invention, the quantitative hydraulic oil pump, the hydraulic connecting pipeline, oil hydraulic motor, fan, radiator, thermostat valve (organizing the expansion of liquids thermostat valve) more, fuel tank can also can be made voluntarily in outsourcing, get all the ready behind the component with reference to the accompanying drawing assembly connection, motor 4 connects and driving hydraulic-pressure pump 3, fuel tank 1 is connected with the input end of hydraulic-pressure pump 3 by connecting pipeline 2, the output terminal of hydraulic-pressure pump 3 is connected to the input end of oil hydraulic motor 9 and thermostat valve 8 with connecting pipeline 2, the output terminal of oil hydraulic motor 9 and thermostat valve 8 is connected to fuel tank 1 with connecting pipeline 2, the pto＝power take-off of oil hydraulic motor 9 connects fan 10, and fan 10 rotations can be to the radiator of each system
( Hydraulic oil radiator 11; Radiator of water tank 12; Torque-converters radiator 13) forces cooling.When the temperature of system is lower than the temperature of setting, thermostat valve 8 does not start, and thermostat valve 8 is in opening state, and the hydraulic oil of the hydraulic-pressure pump 3 outputs this moment thermostat valve 8 of flowing through is got back to fuel tank 1, hydraulic oil by thermostat valve 8 short circuits do not have power to go to drive oil hydraulic motor 9 rotation, so fan 10 is not worked.When the temperature of system is higher than the temperature of setting, the temperature sensing liquid of thermostat valve 8 begins to expand thermostat valve 8 valves is turn-offed, the hydraulic oil of hydraulic-pressure pump 3 outputs only has by oil hydraulic motor just can get back to fuel tank 1, hydraulic oil makes during by motor it rotarily drive fan 10 and rotates, and has realized the pressure cooling to the system radiating device.The hydraulic switch of thermostat valve 8 is opened again and is made hydraulic oil short circuit oil sump tank 1 when the drop in temperature of system is following to the set-point.Oil hydraulic motor 9 lost again hydraulic driving power and stopped rotation this moment.Thereby realized the automatic cooling function of temperature.On the basis of the above N thermostat valve is connected in series, when at this moment the sense temperature of arbitrary thermostat valve setting overflows, the hydraulic oil circuit of hydraulic-pressure pump output is turn-offed in the capital, forces hydraulic-pressure pump to drive oil hydraulic motor and drives the fan rotation, and the system that controls is carried out cooling.Thereby reached the purpose of multiple spot control cooling.Manually force cold switch if add one at thermostat valve tandem tap oil circuit, can also realize artificial special purpose of forcing cooling.
Claims (5)
1. the all-hydraulic automatic cooling system of engineering machinery, it comprises motor, hydraulic-pressure pump, the hydraulic connecting pipeline, oil hydraulic motor, fan, radiator, the thermostat valve of many group series connection, hydraulic oil container, the circulatory system, it is characterized in that: motor (4) connects and driving hydraulic-pressure pump (3), fuel tank (1) is connected with the input end of hydraulic-pressure pump (3) by connecting pipeline (2), the output terminal of hydraulic-pressure pump (3) is connected to the input end of oil hydraulic motor (9) and thermostat valve (8) with connecting pipeline (2), oil hydraulic motor (9) and thermostat valve (8) are connected to fuel tank (1), and the pto＝power take-off of oil hydraulic motor (9) connects fan (10).
2. the all-hydraulic automatic cooling system of engineering machinery according to claim 1, it is characterized in that: thermostat valve (8) is the hydraulic buckling thermostat valve.
3. the all-hydraulic automatic cooling system of engineering machinery according to claim 1 and 2, it is characterized in that: a plurality of thermostat valves (8) are set, a plurality of thermostat valves are connected in series, when at this moment the sense temperature of arbitrary thermostat valve setting overflows, the hydraulic oil circuit of hydraulic-pressure pump output is turn-offed in the capital, force hydraulic-pressure pump (3) to drive oil hydraulic motor (9) and drive fan (10) rotation, the system that controls is carried out cooling, thereby reached the purpose of multiple spot control cooling.
4. the all-hydraulic automatic cooling system of engineering machinery according to claim 1 is characterized in that: on thermostat valve (8) the tandem tap oil circuit hand-operated forced cold switch (14) is housed.
5. the all-hydraulic automatic cooling system of engineering machinery according to claim 1 is characterized in that: driving hydraulic-pressure pump (3) is metering pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102618768A CN102979744A (en) | 2011-09-06 | 2011-09-06 | Engineering machinery full hydraulic automatic air cooling system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102618768A CN102979744A (en) | 2011-09-06 | 2011-09-06 | Engineering machinery full hydraulic automatic air cooling system |
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| CN102979744A true CN102979744A (en) | 2013-03-20 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736412A (en) * | 2016-05-04 | 2016-07-06 | 福州麦辽自动化设备有限公司 | Hydraulic drive-based multi-propeller fan |
| CN107035501A (en) * | 2016-11-16 | 2017-08-11 | 湖北航天技术研究院特种车辆技术中心 | A kind of adaptive cooling system with temperature control |
| CN108644001A (en) * | 2018-07-13 | 2018-10-12 | 安徽合力股份有限公司 | A kind of the intelligent heat dissipation system and its heat dissipating method of hydraulic motor driving |
| CN108869461A (en) * | 2018-08-01 | 2018-11-23 | 中国重汽集团柳州运力专用汽车有限公司 | Snow sweeper hydraulic fluid temperature controller |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005021946A1 (en) * | 2003-08-28 | 2005-03-10 | Tcm Corporation | Cooling device of industrial vehicle |
| CN101216042A (en) * | 2008-01-04 | 2008-07-09 | 广东大华仁盛科技有限公司 | Cooling fan control device and method |
| CN201158300Y (en) * | 2007-12-26 | 2008-12-03 | 陕西汽车集团有限责任公司 | Hydraulic pressure drive refrigerating device of automobile |
| CN201747705U (en) * | 2010-07-04 | 2011-02-16 | 陈玉金 | Closed type cooling device of hydraulic system oil tank |
| CN202273883U (en) * | 2011-09-06 | 2012-06-13 | 阜新北鑫星液压有限公司 | Full-hydraulic automatic air cooling system of engineering machinery |
-
2011
- 2011-09-06 CN CN2011102618768A patent/CN102979744A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005021946A1 (en) * | 2003-08-28 | 2005-03-10 | Tcm Corporation | Cooling device of industrial vehicle |
| CN201158300Y (en) * | 2007-12-26 | 2008-12-03 | 陕西汽车集团有限责任公司 | Hydraulic pressure drive refrigerating device of automobile |
| CN101216042A (en) * | 2008-01-04 | 2008-07-09 | 广东大华仁盛科技有限公司 | Cooling fan control device and method |
| CN201747705U (en) * | 2010-07-04 | 2011-02-16 | 陈玉金 | Closed type cooling device of hydraulic system oil tank |
| CN202273883U (en) * | 2011-09-06 | 2012-06-13 | 阜新北鑫星液压有限公司 | Full-hydraulic automatic air cooling system of engineering machinery |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736412A (en) * | 2016-05-04 | 2016-07-06 | 福州麦辽自动化设备有限公司 | Hydraulic drive-based multi-propeller fan |
| CN107035501A (en) * | 2016-11-16 | 2017-08-11 | 湖北航天技术研究院特种车辆技术中心 | A kind of adaptive cooling system with temperature control |
| CN108644001A (en) * | 2018-07-13 | 2018-10-12 | 安徽合力股份有限公司 | A kind of the intelligent heat dissipation system and its heat dissipating method of hydraulic motor driving |
| CN108644001B (en) * | 2018-07-13 | 2024-02-09 | 安徽合力股份有限公司 | Intelligent heat dissipation system driven by hydraulic motor and heat dissipation method thereof |
| CN108869461A (en) * | 2018-08-01 | 2018-11-23 | 中国重汽集团柳州运力专用汽车有限公司 | Snow sweeper hydraulic fluid temperature controller |
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Application publication date: 20130320 |