CN203640820U - Device for automatically adjusting rotating speed of cooling fan and bulldozer - Google Patents
Device for automatically adjusting rotating speed of cooling fan and bulldozer Download PDFInfo
- Publication number
- CN203640820U CN203640820U CN201320739716.4U CN201320739716U CN203640820U CN 203640820 U CN203640820 U CN 203640820U CN 201320739716 U CN201320739716 U CN 201320739716U CN 203640820 U CN203640820 U CN 203640820U
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- Prior art keywords
- cooling fan
- cooling
- water
- controller
- oil hydraulic
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- Expired - Lifetime
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- 238000001816 cooling Methods 0.000 title claims abstract description 84
- 239000000498 cooling water Substances 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000007664 blowing Methods 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims description 35
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 16
- 239000010720 hydraulic oil Substances 0.000 claims description 16
- 230000001105 regulatory effect Effects 0.000 claims description 16
- 239000000110 cooling liquid Substances 0.000 claims description 7
- 238000010791 quenching Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 9
- 238000004140 cleaning Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 239000002826 coolant Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Abstract
The utility model discloses a device for automatically adjusting rotating speed of a cooling fan. The device comprises a radiator and a cooling fan, wherein the water inlet of the radiator is connected with the water outlet of a motor; the cooling fan is used for blowing an air current into the radiator to cool the cooling water; the device further comprises a temperature sensor used for collecting water temperature of the cooling water, and a speed-adjustable driving device used for driving the cooling fan to rotate; the cooling water temperature controls a controller which is outputted by the speed-adjustable driving device; the temperature sensor and the speed-adjustable driving device are connected with the controller; the temperature sensor is adopted to detecting the water temperature of the motor cooling water; the controller conducts proportional control on the rotating speed of the cooling fan according to the detected temperature of the coolant liquid, so that the cooling fan can automatically adjust the rotating speed, and optimal cooling effect at the minimum power consumption can be achieved; the automatic cleaning function of the radiator is achieved through controlling reverse rotation of the cooling fan, so that labor intensity is relieved.
Description
Technical field
The utility model relates to a kind of cooling fan drive device and a kind of bulldozer, particularly a kind of cooling fan rotation speed automatic regulating apparatus and a kind of bulldozer.
Background technique
Bulldozer is a kind of earth moving machinery, is usually used in various earthworks, and because bulldozer is a kind of machinery of high-power low motion speed, a large amount of heat that therefore in cooling bulldozer running, motor produces is a problem that must solve.In present technology, it is to utilize motor head bent axle to drive cooling fan rotation that bulldozer cooling fan drives, by cooling fan, the cooling water in radiator is carried out coolingly, the rotating speed of cooling fan is to change along with the variation of engine speed, and engine water temperature does not have direct relation.And the speed of engine speed has direct relation to the cooling effect of radiator, engine speed is fast, and cooling fan rotation speed is just fast, and the cooling effect of radiator is all right, but the power that drives cooling fan to consume is larger.Therefore just may there is following situation: when water temperature is high while needing cooling fan rotation speed to strengthen dispelling the heat soon, if now the rotating speed of motor is slow, the rotating speed of cooling fan is also slow, and water temperature can not obtain cooling timely; When water temperature is low while not needing cooling fan to turn High Rotation Speed, if now the rotating speed of motor is higher, the rotating speed of cooling fan is also high, just many for the meaningless ground consumed power of cooling fan.Owing to driving cooling fan by engine speed, cooling fan can not reverse in addition, on radiator, can accumulate a large amount of dust and other impurities, affect the radiating effect of radiator, now often need, by unpicking and washing radiator, to improve the cooling of radiator, need a lot of manpower and materials.
Model utility content
The purpose of this utility model is in order to overcome above-mentioned the deficiencies in the prior art, and a kind of cooling fan rotation speed automatic regulating apparatus and a kind of bulldozer that can automatically adjust according to cooling water water temperature height cooling fan rotation speed is provided.
A kind of cooling fan rotation speed automatic regulating apparatus, comprise radiator and cooling fan, the water intake of described radiator is connected with the water outlet of motor, and described cooling fan is for blowing to radiator by air-flow, to water quench wherein, also comprise the temperature transducer for gathering cooling water water temperature; For driving the variable speed drivP of cooling fan rotation; According to the controller of variable speed drivP output described in the control of described cooling water water temperature; Described temperature transducer and variable speed drivP are connected in controller.
Wherein, described variable speed drivP comprises oil hydraulic motor, electronics proportional control valve and oil hydraulic pump, described oil hydraulic pump is connected in oil hydraulic motor, oil hydraulic motor drives cooling fan rotation, the another connection one of oil hydraulic pump outlet is connected with the bleed off circuit of described electronics proportional control valve, hydraulic oil is bypassed to hydraulic oil container by bleed off circuit, and described electronics proportional control valve is electrically connected on described controller.
Wherein, described variable speed drivP also comprises selector valve, and described selector valve is series between described oil hydraulic pump and oil hydraulic motor, and is electrically connected on described controller.
Wherein, described controller is PLC programmable controller.
Wherein, described temperature transducer is arranged at the cooling liquid outlet of motor.
Wherein, described oil hydraulic pump is metering pump.
The utility model also discloses a kind of bulldozer, and described bulldozer comprises above-mentioned cooling fan rotation speed automatic regulating apparatus.
Effective effect of the present utility model is: the water temperature that can detect accurately engine cooling water by temperature transducer, described controller is according to the rotating speed of the temperature proportional control cooling fan of the cooling liquid detecting, in the time that cooling water water temperature is higher, control described cooling fan with higher rotating speed rotation, in the time that cooling liquid water water temperature is lower, control described cooling fan with lower rotating speed rotation, therefore realize cooling fan and automatically adjust its rotational speed according to the temperature of cooling water, thereby reach best cooling effect to consume minimum power.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment 1 schematic block diagram;
Fig. 2 is the utility model embodiment 2 connection diagram;
Main label declaration:
1-radiator; 2-temperature transducer; 3-cooling fan; 4-oil hydraulic motor; 6-selector valve; 7-controller; 8-electronics proportional control valve; 9-oil hydraulic pump; 10-variable speed drivP.
Embodiment
By describing technology contents of the present utility model, structure characteristics in detail, being realized object and effect, below in conjunction with mode of execution and coordinate accompanying drawing to be explained in detail.
As shown in Figure 1, a kind of cooling fan rotation speed automatic regulating apparatus, comprise radiator 1 and cooling fan 3, the water intake of described radiator 1 is connected with the water outlet of motor, described cooling fan 3 is for blowing to air-flow in radiator 1, to water quench wherein, also comprise the temperature transducer 2 for gathering cooling water water temperature; For driving the variable speed drivP 10 of cooling fan rotation; According to the controller 7 of variable speed drivP output described in the control of described cooling water water temperature; Described temperature transducer 2 and variable speed drivP 10 are connected in controller 7.
In the present embodiment, described temperature transducer 2 is thermocouple temperature sensor, and thermocouple temperature sensor has higher temperature measurement range and higher validity.Described controller 7 can be single-chip microcomputer or PLC programmable controller, described variable speed drivP 10 can be that variable-frequency motor and controller thereof can be also transformation motor and controllers, and the utility model does not do concrete restriction to described controller 7, temperature transducer 2 and variable speed drivP 10.
In the utility model, described temperature transducer 2 changes cooling water water temperature into analog electric signal, the described analog electric signal receiving is transformed into digital signal by described controller 7, and calculate the temperature of cooling water, and according to the output of variable speed drivP 10 described in described cooling water temperature control, make it drive cooling fan 3 to rotate, to the water quench in radiator 1.In the time that controller 7 detects that the water temperature of cooling water is higher, control described variable speed drivP 10 with higher rotating speed output, drive cooling fan 3 High Rotation Speeds, make the cooling water in radiator cooling fast; In the time that controller 7 detects that the water temperature of cooling water is lower, control described variable speed drivP 10 with lower rotating speed output, drive cooling fan 3 with lower revolution rotation or do not turn, thereby reaching best cooling effect to consume minimum power.Because the transformation control of transformation motor and variable-frequency motor is the art known technology, be output revolutions how to control described speed adjustable controller so the present embodiment is not just specifically introduced controller.
Embodiment 2
Be with embodiment 1 difference, in the present embodiment, described controller 7 is PLC programmable controller, described variable speed drivP 10 comprises oil hydraulic motor 4, electronics proportional control valve 8 and oil hydraulic pump 9, described oil hydraulic pump 9 is connected in oil hydraulic motor 4, oil hydraulic motor 4 drives cooling fan 3 to rotate, the another connection one of oil hydraulic pump 9 outlet is connected with the bleed off circuit of described electronics proportional control valve 8, hydraulic oil is bypassed to hydraulic oil container by bleed off circuit, and described electronics proportional control valve 8 is electrically connected on described controller 7.
In the present embodiment, described oil hydraulic pump 9 is metering pump, described metering pump under driven by engine from hydraulic oil container drawing liquid force feed, flow through oil purifier and selector valve 6 of hydraulic oil drives oil hydraulic motor 4 to rotate, oil hydraulic motor 4 drives cooling fan 3 to rotate, cooling fan 3 rotates radiator 1 and water quench wherein, makes motor obtain thermal equilibrium.Separately separately connect a bleed off circuit that is connected with described electronics proportional control valve 8 at quantitative delivery side of pump, hydraulic oil is bypassed to hydraulic oil container by described bleed off circuit.In the time that electronics proportional control valve 8 cuts out completely, the described hydraulic oil quantitatively pumping is all for driving oil hydraulic motor 4, and now cooling fan 3 rotating speeds are maximum.In the time that engine cooling water water temperature is lower, do not need cooling fan 3 rotating speeds too fast, now control electronics proportional control valve 8 open certain angle of flow by part hydraulic oil bypass to hydraulic oil container, the flow through flow of hydraulic oil of oil hydraulic motor 4 of control, make cooling fan 3 with less revolution rotation, to reduce the energy of drive fan.Therefore just can control the flow of the hydraulic oil of the oil hydraulic motor 4 of flowing through by the angle of flow of controlling described electronics comparison control valve 8, thereby control the revolution of cooling fan 3.
Described PLC programmable controller is according to the angle of flow of electronics proportional control valve 8 described in the cooling water water temperature proportional control detecting, to realize proportional control cooling fan 3 rotating speeds.In the time that cooling water water temperature is high, PLC Controlled by Programmable Controller electronics comparison control valve 8 is closed completely or opens less angle of flow, makes cooling fan 3 cooling fast to radiator 1 with high or the highest rotating speed rotation; In the time that cooling water water temperature is lower, PLC Controlled by Programmable Controller electronics proportional control valve 8 is opened completely or opens larger angle of flow, makes cooling fan 3 close or rotate with less rotating speed.
In the present embodiment, can control described selector valve 6 by PLC programmable controller moves the spool of selector valve 6, change the flow through direction of oil hydraulic motor 4 of hydraulic oil, thereby control oil hydraulic motor 4 and drive cooling fan 3 counterrotatings, therefore can blow the dust and the foreign material that adhere on radiator 1 off, keep radiator clean, guarantee the heat sinking function of radiator.
In order to make temperature transducer 2 can accurately and timely detect the water temperature of cooling water in motor, described temperature transducer 2 is arranged at the cooling liquid outlet of motor.
The present embodiment is one to be provided with the bulldozer of cooling fan rotation speed automatic regulating apparatus, and described cooling fan rotation speed automatic regulating apparatus is to implement the cooling fan rotation speed automatic regulating apparatus described in 2.
In sum, the utility model can accurately detect the water temperature of engine cooling water timely by temperature transducer 2, described controller 7 is according to the rotating speed of the temperature control cooling fan 3 of the cooling liquid detecting, in the time that cooling water water temperature is higher, control described cooling fan 3 with higher rotating speed rotation, in the time that cooling liquid water water temperature is lower, controls described cooling fan 3 with lower rotating speed rotation, thereby reach best cooling effect to consume minimum power.And by controlling cooling fan 3 counterrotatings, reach radiator 1 automatic cleaning function, reduce labor intensity.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model specification and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (7)
1. a cooling fan rotation speed automatic regulating apparatus, comprise radiator and cooling fan, the water intake of described radiator is connected with the water outlet of motor, and described cooling fan is for blowing to air-flow in radiator to water quench wherein, it is characterized in that, also comprise:
For gathering the temperature transducer of cooling water water temperature;
For driving the variable speed drivP of cooling fan rotation;
According to the controller of variable speed drivP output described in the control of described cooling water water temperature;
Described temperature transducer and variable speed drivP are connected in controller.
2. a kind of cooling fan rotation speed automatic regulating apparatus according to claim 1, it is characterized in that, described variable speed drivP comprises oil hydraulic motor, electronics proportional control valve and oil hydraulic pump, described oil hydraulic pump is connected in oil hydraulic motor, oil hydraulic motor drives cooling fan rotation, the another connection one of oil hydraulic pump outlet is connected with the bleed off circuit of described electronics proportional control valve, and hydraulic oil is bypassed to hydraulic oil container by bleed off circuit, and described electronics proportional control valve is electrically connected on described controller.
3. a kind of cooling fan rotation speed automatic regulating apparatus according to claim 2, is characterized in that, described variable speed drivP also comprises selector valve, and described selector valve is series between described oil hydraulic pump and oil hydraulic motor, and is electrically connected on described controller.
4. a kind of cooling fan rotation speed automatic regulating apparatus according to claim 2, is characterized in that, described controller is PLC programmable controller.
5. a kind of cooling fan rotation speed automatic regulating apparatus according to claim 2, is characterized in that, described temperature transducer is arranged at the cooling liquid outlet of motor.
6. a kind of cooling fan rotation speed automatic regulating apparatus according to claim 2, is characterized in that, described oil hydraulic pump is metering pump.
7. a bulldozer, is characterized in that, comprises the cooling fan rotation speed automatic regulating apparatus described in claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320739716.4U CN203640820U (en) | 2013-11-20 | 2013-11-20 | Device for automatically adjusting rotating speed of cooling fan and bulldozer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320739716.4U CN203640820U (en) | 2013-11-20 | 2013-11-20 | Device for automatically adjusting rotating speed of cooling fan and bulldozer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203640820U true CN203640820U (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320739716.4U Expired - Lifetime CN203640820U (en) | 2013-11-20 | 2013-11-20 | Device for automatically adjusting rotating speed of cooling fan and bulldozer |
Country Status (1)
| Country | Link |
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| CN (1) | CN203640820U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832270A (en) * | 2014-06-23 | 2015-08-12 | 北汽福田汽车股份有限公司 | Automatic dust removing method, automatic dust removing system and vehicle |
| CN104827889A (en) * | 2015-04-01 | 2015-08-12 | 江苏博众汽车部件有限公司 | Automobile fuel tank-used heat radiator |
| CN104890501A (en) * | 2015-04-02 | 2015-09-09 | 金陵科技学院 | Novel scraper convenient to clean |
| CN107228577A (en) * | 2017-06-20 | 2017-10-03 | 太仓陶氏电气有限公司 | A kind of Self-adjusting industrial heat radiator device |
-
2013
- 2013-11-20 CN CN201320739716.4U patent/CN203640820U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832270A (en) * | 2014-06-23 | 2015-08-12 | 北汽福田汽车股份有限公司 | Automatic dust removing method, automatic dust removing system and vehicle |
| CN104832270B (en) * | 2014-06-23 | 2018-05-11 | 北汽福田汽车股份有限公司 | Automatic dedusting method, automatic dust removing system and vehicle |
| CN104827889A (en) * | 2015-04-01 | 2015-08-12 | 江苏博众汽车部件有限公司 | Automobile fuel tank-used heat radiator |
| CN104890501A (en) * | 2015-04-02 | 2015-09-09 | 金陵科技学院 | Novel scraper convenient to clean |
| CN107228577A (en) * | 2017-06-20 | 2017-10-03 | 太仓陶氏电气有限公司 | A kind of Self-adjusting industrial heat radiator device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140611 |
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| CX01 | Expiry of patent term |