CN102425481A - Secondary cooling device of hydraulic excavator engine and regulating method thereof - Google Patents
Secondary cooling device of hydraulic excavator engine and regulating method thereof Download PDFInfo
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- CN102425481A CN102425481A CN2011102820073A CN201110282007A CN102425481A CN 102425481 A CN102425481 A CN 102425481A CN 2011102820073 A CN2011102820073 A CN 2011102820073A CN 201110282007 A CN201110282007 A CN 201110282007A CN 102425481 A CN102425481 A CN 102425481A
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Abstract
The invention relates to a secondary cooling device of a hydraulic excavator engine, wherein the secondary cooling device comprises an inlet temperature sensor, a temperature control switch, a water inlet pipe, a heat exchanger, a fan, a wind guide cover, a water outlet pipe, an outlet temperature sensor, a backflow pipe, a backflow water pump and a water supply tank, wherein the device is provided with a cooling device with the backflow pipe, a heat radiation system with variable heat radiation amount for the engine of the secondary cooling device and an individual cycle system of cooling water in a heat radiator. The invention also provides a regulating method of the secondary cooling device of the hydraulic excavator engine, the variable regulation and control on heat radiation capability of an excavator motive power system is realized through the secondary cooling device; the cooling water can flow back into a heat exchanger for recycling through the detecting the temperature of the engine cooling water by the temperature sensor, and optimal temperature for the operation of the engine is ensured. Through changing the cycle modes of the engine cooling water in the engine, or in the engine and the heat radiator, the cooling water can be subjected to cycled temperature reduction in the heat radiator, and the secondary cooling device is much practical.
Description
Technical field
The present invention relates to a kind of hydraulic shovel engine cooling apparatus and method for using thereof, particularly a kind of hydraulic shovel motor secondary cooling apparatus and regulating method thereof.
Background technique
Hydraulic shovel is widely used in the numerous areas of the development of the national economy, particularly in the Inner Mongol of northern China, and Xinjiang, ground such as Shanxi have abundant mineral resources, and large excavator is at the open coal mine of locality, and large-scale quarry etc. have high usage frequency.Motor is one of pass heavy parts of hydraulic shovel; And cooling system is the important component part of motor, and its effect is that motor is moved in suitable temperature range, thereby makes complete machine have good power performance; Economic performance, emission performance and operational reliability.Receive the sunlight direct projection summer in the working environment such as colliery and quarry in the open; Do not have effective veil on every side, surface temperature can reach about 45 ℃, and excavator is long-time big load operation under this environment; The heat of engine producing is prone to surpass the heat dissipation potential of cooling system; And then cause engine water temperature high, and influence hydraulic shovel complete machine performance, because of " boiling ", motor can not work even.Extremely low at the northern area winter temperature in addition; As only then be prone to cause motor when temperature is low, to be in the cold operation state for a long time through increasing the radiator heat-dissipation ability; Both wasted engine power; Also can make fuel combustion in poor shape, hydrocarbons content is higher in the unable and tail gas of engine operation.
The cooling system that uses on the excavator at present all is to adopt motor to carry the water pump cooled engine basically; The hydraulic system cooling utilizes air cooling; And cooling system adopts high and low temperature circulation cooling on the hybrid excavator: promptly electric water pump circulating water cools off low temperature component such as hydraulic system and electrical apparatus element, and motor carries the water pump cooled engine.
Chinese patent CN101907015A relates to a kind of integrative cooling system of hybrid power excavating machine.The integrative cooling system of hybrid power excavating machine that this invention relates to comprises engine blower, engine water pump, engine water radiator, air-air intercooler, electric water pump, comprehensive radiator, hydraulic oil oil cooler, electrode controller, generator, turning motor, main pump motor and various pipeline; This invention is characterised in that a water radiator, comprehensive radiator, the absolutely empty intercooler independent loops loop that is designed to respectively do for oneself; Carry water pump to engine water radiator and motor through pipeline and be communicated with, cooling fan cools off high temperature circulation water in the engine water radiator; After the oil of hydraulic system through the hydraulic oil oil cooler, the water exchange; Be communicated with generator, electric machine controller, main pump motor, turning motor, hydraulic oil cooler, electric water pump, comprehensive radiator through pipeline, electric water pump drives circulating water and through the cooling electric fan comprehensive radiator high-temperature water is cooled off; Be communicated with absolutely empty intercooler through the hot air of pipeline after engine booster, cooling fan cools off hot air in the absolutely empty intercooler.
Chinese patent CN201473992U discloses a kind of hydraulic shovel radiator; Comprise fan, hydraulic oil radiator, engine water radiator; Hydraulic oil radiator links to each other with hydraulic system through oil inlet pipe, return tube; Water radiator links to each other with motor through intake pipe, outlet pipe, and hydraulic oil radiator, water radiator are arranged side by side the outside at said fan, and through the connection fastened to each other of several fastening pieces.The utility model is simple in structure; Change hydraulic oil radiator and water radiator into be arranged side by side mode by the mode of connecting; Fan is blown over the cold wind that comes and can directly be blown on two radiators, has strengthened radiating effect, guarantees motor proper functioning under suitable temperature; Simultaneously, because radiator places the outside of fan, open hood and can easily radiator be cleaned and safeguard behind the door; The import and export of hydraulic oil and the import and export of water are separately positioned on the outside of radiator, can make things convenient for connection, maintenance and the maintenance of pipeline.
Chinese patent CN1169176A relates to a kind of diesel engine excavator cooling system for drives and regulating method thereof; This scheme is a kind of method that is used for regulating superpower diesel engine excavator cooling system for drives; Here thermostat that is contained in diesel engine zone is opened the passage of the water cooler that concurs from diesel engine to and fan when given in advance water temperature, and the temperature measuring equipment that wherein is contained in the passage area is controlled fan in this wise: one can be given in advance, in the scope between the maximum (top) speed, regulate at 0 rev/min above the rotating speed of the temperature range internal fan of thermostat controlled water temperature.
Technical problem to be solved by this invention provides a kind of cooling system of variable heat dissipation potential, optionally increases the heat dissipation potential of excavator cooling system through secondary cooling apparatus according to ambient temperature conditions, solves the engine high-temperature problem.
Summary of the invention
In view of the above problems; The objective of the invention is to overcome the shortcoming of existing technology; A kind of hydraulic shovel engine cooling apparatus with variable heat dissipation potential is provided; Optionally increase the heat dissipation potential of excavator cooling system through secondary cooling apparatus according to ambient temperature conditions, solve the engine high-temperature problem.
The object of the invention and solve its technical problem and adopt following technological scheme to realize.
The present invention relates to a kind of hydraulic shovel motor secondary cooling apparatus, comprise inlet temperature sensor, temperature detect switch (TDS), intake pipe, heat exchanger, fan, wind scooper, outlet pipe, outlet temperature sensor, reflow pipe, backflow water pump and water supply tank.Said intake pipe is connected with the entrance point of heat exchanger, and the outlet end of heat exchanger connects outlet pipe successively, reflow pipe and water supply tank; The water intake of said intake pipe is provided with inlet temperature sensor and temperature detect switch (TDS), and said backflow water pump is arranged on intake pipe near heat exchanger one side, and the water outlet of said outlet pipe is provided with outlet temperature sensor; Said fan, wind scooper are installed in the heat exchanger bottom.
The object of the invention and solve its technical problem and also can adopt following technical measures further to realize.
Aforesaid intake pipe, it is shaped as " T " font, connects main radiator respectively, water inflow of the engine pipe, second cooling heat exchanger import;
Aforesaid outlet pipe, it is shaped as " ten " font, connects the second cooling heat exchanger outlet respectively, water inflow of the engine pipe, reflow pipe, water supply tank.
Aforesaid hydraulic shovel engine cooling apparatus, its intake pipe, heat exchanger, outlet pipe, reflow pipe is connected with water supply tank successively, constitutes the independent loops loop.
Aforementioned fan is by the motor drive, not consumption of engine power.
Aforementioned backflow water pump is by motor driving, and actuating signal is by the central control unit transmission.
In addition, the present invention also provides the regulating method that uses the hydraulic shovel engine cooling apparatus, the steps include:
1. cooling water gets into second cooling heat exchanger through intake pipe after inlet temperature sensor detects, and carries out the secondary cooling;
2. inlet temperature sensor detects the water temperature of one-level radiator outlet place cooling water; When water temperature is higher than setting value; The water intake temperature transducer is passed to central control unit with temperature signal, and temperature detect switch (TDS) control water inlet valve open is opened and led to secondary radiator water route; Cooling water gets into second cooling heat exchanger, simultaneously the secondary cooling apparatus starting fan
3. cooling water arrives water outlet after the secondary cooling, and the water outlet temperature transducer detects water temperature, and transmits signal to central control unit, and temperature is lower than setting value, and then temperature detect switch (TDS) is opened the valve that leads to motor, and cooling water gets into engine water jacket through water pump; If be higher than setting value through detecting secondary cooling apparatus outlet port temperature, then lead to the valve opening of reflow pipe, cooling water gets into heat exchanger again through reflow pipe and cools off;
4. open simultaneously when the backflow water pump, the water supply tank valve opening will be laid in cooling water and put into motor, guarantee that motor normally moves.
Advantage of the present invention is: realize the variable regulation and control of excavator power system heat dissipation potential through secondary cooling apparatus; Detect the entering engine cooling water temperature through temperature transducer; Cooling water can reflux and get into heat exchanger and carry out recirculation, guarantees motor operation optimum temperature.Change the available engine cooling water at engine interior, or the pattern of motor and radiator inner loop, make the cooling water cooling that can circulate in radiator inside, be very suitable for practicality.
Above-mentioned explanation only is the general introduction of technological scheme of the present invention; Understand technological means of the present invention in order can more to know; And can implement according to the content of specification, and for let of the present invention above-mentioned with other purposes, feature and advantage can be more obviously understandable, below special act preferred embodiment; And conjunction with figs., specify as follows.
Description of drawings
With reference to appended accompanying drawing, to describe embodiments of the invention more fully.Yet appended accompanying drawing only is used for explanation and sets forth, and does not constitute limitation of the scope of the invention.
Fig. 1 illustrates hydraulic shovel engine cooling apparatus structural representation of the present invention.
Fig. 2 illustrates " T " font intake pipe Placement schematic representation.
Fig. 3 illustrates " ten " font outlet pipe Placement schematic representation.
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, a kind of excavator remote control lock to proposing according to the present invention specifies as follows.
Different embodiments of the invention will details are as follows, with the different techniques characteristic of embodiment of the present invention, will be understood that, the unit of the specific embodiment of the following stated and configuration are in order to simplify the present invention, and it is merely example and does not limit the scope of the invention.
Shown in Figure 1 is hydraulic shovel motor secondary cooling apparatus structural representation of the present invention.The present invention relates to a kind of hydraulic shovel engine cooling apparatus, comprise inlet temperature sensor 1, temperature detect switch (TDS) 2, intake pipe 3, heat exchanger 4, fan 5, wind scooper 6, outlet pipe 7, outlet temperature sensor 8, reflow pipe 9, backflow water pump 10 and water supply tank 11.Said intake pipe 3 is connected with the entrance point of heat exchanger 4, and the outlet end of heat exchanger 4 connects outlet pipe 7 successively, reflow pipe 9 and water supply tank 11; The water intake of said intake pipe 3 is provided with inlet temperature sensor 1 and temperature detect switch (TDS) 2, and said backflow water pump 10 is arranged on intake pipe 3 near heat exchanger 4 one sides, and the water outlet of said outlet pipe 7 is provided with outlet temperature sensor 8; Fan 5, wind scooper 6 are installed in heat exchanger 4 bottoms.Aforesaid intake pipe 3, it is shaped as " T " font, connects main radiator respectively, water inflow of the engine pipe, second cooling heat exchanger import; Aforesaid outlet pipe 7, it is shaped as " ten " font, connects the second cooling heat exchanger outlet respectively, water inflow of the engine pipe, reflow pipe 9, water supply tank 11.Aforementioned fan 5 is by the motor drive, not consumption of engine power.Aforementioned backflow water pump 10 is by motor driving, and actuating signal is by the central control unit transmission.Aforesaid hydraulic shovel engine cooling apparatus, its intake pipe 3, heat exchanger 4, outlet pipe 7, reflow pipe 9 is connected with water supply tank 11 successively, constitutes the independent loops loop.
In addition, the present invention also provides the regulating method that uses the hydraulic shovel engine cooling apparatus, the steps include:
1. cooling water gets into second cooling heat exchanger 4 through intake pipe 3 after inlet temperature sensor 1 detects, and carries out the secondary cooling;
2. inlet temperature sensor 1 detects the water temperature of one-level radiator outlet place cooling water; When water temperature is higher than setting value; The water intake temperature transducer is passed to central control unit with temperature signal, and temperature detect switch (TDS) 2 control water inlet valve opens are opened and led to secondary radiator water route; Cooling water gets into second cooling heat exchanger, and secondary cooling apparatus fan 5 starts simultaneously;
3. cooling water arrives water outlet after the secondary cooling, and water outlet temperature transducer 8 detects water temperature, and transmits signal to central control unit, and temperature is lower than setting value, and then temperature detect switch (TDS) is opened the valve that leads to motor, and cooling water gets into engine water jacket through water pump; If be higher than setting value through detecting secondary cooling apparatus outlet port temperature, then lead to the valve opening of reflow pipe 9, cooling water gets into heat exchanger 4 again through reflow pipe 9 and cools off;
4. open simultaneously when backflow water pump 10, water supply tank 11 valve openings will be laid in cooling water and put into motor, guarantee that motor normally moves.
Through explanation and accompanying drawing, provided the exemplary embodiments of the specified structure of embodiment.Although foregoing invention has proposed existing preferred embodiment, yet these contents are not as limitation.For a person skilled in the art, read above-mentioned explanation after, various variations and revise undoubtedly will be obvious.Therefore, appending claims should be regarded whole variations and the correction of containing true intention of the present invention and scope as.Any and all scope of equal value and contents all should be thought still to belong in the intent of the present invention and the scope in claims scope.
Claims (7)
1. a hydraulic shovel motor secondary cooling apparatus comprises inlet temperature sensor, temperature detect switch (TDS), intake pipe; Heat exchanger, fan, wind scooper, outlet pipe; Outlet temperature sensor, reflow pipe, backflow water pump and water supply tank; It is characterized in that: said intake pipe is connected with the entrance point of heat exchanger, and the outlet end of heat exchanger connects outlet pipe successively, reflow pipe and water supply tank; The water intake of said intake pipe is provided with inlet temperature sensor and temperature detect switch (TDS), and said backflow water pump is arranged on intake pipe near heat exchanger one side, and the water outlet of said outlet pipe is provided with outlet temperature sensor; Said fan, wind scooper are installed in the heat exchanger bottom.
2. hydraulic shovel motor secondary cooling apparatus as claimed in claim 1 is characterized in that: said intake pipe, it is shaped as " T " font, connects main radiator respectively, water inflow of the engine pipe, second cooling heat exchanger import.
3. hydraulic shovel motor secondary cooling apparatus as claimed in claim 1 is characterized in that: said outlet pipe, it is shaped as " ten " font, connects the second cooling heat exchanger outlet respectively, water inflow of the engine pipe, reflow pipe, water supply tank.
4. hydraulic shovel motor secondary cooling apparatus as claimed in claim 1 is characterized in that: said intake pipe, and heat exchanger, outlet pipe, reflow pipe is connected with water supply tank successively, constitutes the independent loops loop.
5. hydraulic shovel motor secondary cooling apparatus as claimed in claim 1 is characterized in that: said fan is by the motor drive, not consumption of engine power.
6. hydraulic shovel motor secondary cooling apparatus as claimed in claim 1 is characterized in that: said backflow water pump is by motor driving, and actuating signal is by the central control unit transmission.
7. the regulating method of a hydraulic shovel motor secondary cooling apparatus as claimed in claim 1, it is characterized in that: its regulating step is following:
Cooling water gets into second cooling heat exchanger through intake pipe after inlet temperature sensor detects, carry out the secondary cooling;
Inlet temperature sensor detects the water temperature of one-level radiator outlet place cooling water; When water temperature is higher than setting value; The water intake temperature transducer is passed to central control unit with temperature signal, and temperature detect switch (TDS) control water inlet valve open is opened and led to secondary radiator water route; Cooling water gets into second cooling heat exchanger, simultaneously the secondary cooling apparatus starting fan;
Cooling water arrives water outlet after the secondary cooling, the water outlet temperature transducer detects water temperature, and transmits signal to central control unit, and temperature is lower than setting value, and then temperature detect switch (TDS) is opened the valve that leads to motor, and cooling water gets into engine water jacket through water pump; If be higher than setting value through detecting secondary cooling apparatus outlet port temperature, then lead to the valve opening of reflow pipe, cooling water gets into heat exchanger again through reflow pipe and cools off;
Open simultaneously when the backflow water pump, the water supply tank valve opening will be laid in cooling water and put into motor, guarantee that motor normally moves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201110282007 CN102425481B (en) | 2011-09-22 | 2011-09-22 | Secondary cooling device of hydraulic excavator engine and regulating method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110282007 CN102425481B (en) | 2011-09-22 | 2011-09-22 | Secondary cooling device of hydraulic excavator engine and regulating method thereof |
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| CN102425481A true CN102425481A (en) | 2012-04-25 |
| CN102425481B CN102425481B (en) | 2013-11-06 |
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| CN 201110282007 Expired - Fee Related CN102425481B (en) | 2011-09-22 | 2011-09-22 | Secondary cooling device of hydraulic excavator engine and regulating method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102830355A (en) * | 2012-09-04 | 2012-12-19 | 宁波菲仕运动控制技术有限公司 | Automatic cooling system for motor test |
| CN103321734A (en) * | 2013-07-01 | 2013-09-25 | 中国北车集团大连机车车辆有限公司 | Cooling water system of diesel locomotive |
| CN103469846B (en) * | 2013-08-24 | 2016-03-02 | 泰安海松机械有限公司 | The engine cooling system of a kind of plateau sliding loader |
| CN105735387A (en) * | 2014-12-10 | 2016-07-06 | 天津建筑机械厂 | Auxiliary cooling device of dual-fuel bulldozer |
| CN106759617A (en) * | 2016-12-09 | 2017-05-31 | 广西玉柴重工有限公司 | A kind of battery is powered the cooling system of electric hydraulic excavating machine |
| CN106930813A (en) * | 2017-05-11 | 2017-07-07 | 苏州工业园区驿力机车科技股份有限公司 | A kind of temperature-controlled cooling system |
| WO2019007118A1 (en) * | 2017-11-15 | 2019-01-10 | 安徽江淮汽车集团股份有限公司 | Truck cooling and noise balancing control system and control method |
| CN109226094A (en) * | 2018-08-08 | 2019-01-18 | 武汉武钢华工激光大型装备有限公司 | A kind of high power laser light cleaning head |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102830355A (en) * | 2012-09-04 | 2012-12-19 | 宁波菲仕运动控制技术有限公司 | Automatic cooling system for motor test |
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| CN103469846B (en) * | 2013-08-24 | 2016-03-02 | 泰安海松机械有限公司 | The engine cooling system of a kind of plateau sliding loader |
| CN105735387A (en) * | 2014-12-10 | 2016-07-06 | 天津建筑机械厂 | Auxiliary cooling device of dual-fuel bulldozer |
| CN106759617A (en) * | 2016-12-09 | 2017-05-31 | 广西玉柴重工有限公司 | A kind of battery is powered the cooling system of electric hydraulic excavating machine |
| CN106930813A (en) * | 2017-05-11 | 2017-07-07 | 苏州工业园区驿力机车科技股份有限公司 | A kind of temperature-controlled cooling system |
| WO2019007118A1 (en) * | 2017-11-15 | 2019-01-10 | 安徽江淮汽车集团股份有限公司 | Truck cooling and noise balancing control system and control method |
| CN109226094A (en) * | 2018-08-08 | 2019-01-18 | 武汉武钢华工激光大型装备有限公司 | A kind of high power laser light cleaning head |
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| CN102425481B (en) | 2013-11-06 |
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