CN102878101B - Fan, engine-cooling system and engineering machinery - Google Patents
Fan, engine-cooling system and engineering machinery Download PDFInfo
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- CN102878101B CN102878101B CN201210358108.9A CN201210358108A CN102878101B CN 102878101 B CN102878101 B CN 102878101B CN 201210358108 A CN201210358108 A CN 201210358108A CN 102878101 B CN102878101 B CN 102878101B
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Abstract
The invention discloses a kind of fan, engine-cooling system and engineering machinery.Wherein, engine-cooling system comprises fan, and each blade of fan includes: radially arrange and the stator blade that mutually superposes of abutting end and adjusting vane and controlling device; Wherein, stator blade is connected by controlling device with adjusting vane, and controlling device is for regulating the radial distance between stator blade and adjusting vane abutting end.The flexible radial distance that can regulate between stator blade outer and adjusting vane outer of controlling device.When controlling device is extended, the distance between stator blade and adjusting vane increases, and then the entire length of fan blade is increased, and fan volumetric efficiency increases, and improves the heat dissipation potential of system; On the contrary, when controlling device shortens, the entire length of fan blade reduces, and fan volumetric efficiency reduces, and reduces the heat dissipation potential of system.In addition, in the present invention, the length of each blade of fan can regulate separately, independently of one another, is independent of each other.
Description
Technical field
The present invention relates to engineering machinery field, particularly a kind of fan, engine-cooling system and engineering machinery.
Background technique
At present, engineering machinery is widely used in the numerous areas of the development of the national economy, has the area of enriching mineral resources especially in northern China, and the ground such as the open coal mine of large-scale engineering machinery in locality, large-scale quarry have high usage frequency.Motor is one of vitals of engineering machinery, and cooling system is the important component part of motor, the effect of cooling system is that motor is run in suitable temperature range, thus makes complete machine have excellent power character, Economy, emission performance and reliability of operation.
Engine-cooling system generally comprises radiator, wind scooper and fan, and cooling air by after radiator, wind scooper and fan, cools the cooling liquid of motor successively.But the heat dissipation potential of this system fan is fixed, can not regulate according to actual needs.And engineering machinery is generally operational in open-air atmosphere, summer is by direct sunlight, surface temperature can reach about 45 DEG C, engineering machinery is long-time large load operation in such circumstances, if the heat that motor produces exceedes the heat dissipation potential of cooling system, then can cause engine water temperature rise, affect the overall performance of engineering machinery, even can not work because motor " boils ", so, the cooling system of larger heat dissipation potential generally can be had to engine configurations.But in the winter time, temperature is extremely low again, for adapting to the cooling system that summer high temperature designs, because its heat dissipation potential is non-adjustable, so very easily cause when temperature is lower, motor is made to be in cold operation state for a long time, both engine power was wasted, also fuel combustion can be made in poor shape, engine operation unable and in tail gas hydrocarbons content higher, befouling environment.So need the fan providing a kind of heat dissipation potential adjustable badly, regulate to make the operating temperature of motor.
Summary of the invention
In view of this, the present invention proposes a kind of fan, engine-cooling system and engineering machinery, to solve in available engine cooling system, the waste engine power caused because fan cooling ability is non-adjustable and the problem of befouling environment.
An aspect, the present invention proposes a kind of fan, comprises blade, and each blade includes: radially arrange and the stator blade of mutually superposition and adjusting vane and telescopic controlling device; Wherein, stator blade is connected by controlling device with adjusting vane, and controlling device is for regulating the radial distance between stator blade and adjusting vane abutting end.
Further, in said fans, controlling device comprises: oil cylinder, and its one end is connected with stator blade, and the other end is connected with adjusting vane.
Further, in said fans, controlling device comprises the first electromagnetic pole, is connected to adjusting vane; Second electromagnetic pole, is connected to stator blade; Elastic member, is connected between the first electromagnetic pole and the second electromagnetic pole.
Further, in said fans, described elastic member is spring.
In the present invention, the flexible radial distance that can regulate between stator blade and adjusting vane abutting end of controlling device, and then regulate the length of blade of fan, make the heat dissipation potential of fan adjustable.In addition, the length of each blade of this fan can regulate separately, independently of one another, is independent of each other.
On the other hand, the invention allows for a kind of engine-cooling system, be provided with any one fan above-mentioned.
Further, above-mentioned cooling system also comprises: wind scooper, is arranged in the outside of adjusting vane; Distance measuring sensor, is installed on wind scooper, and distance measuring sensor is for detecting the distance between wind scooper and adjusting vane.
Further, above-mentioned cooling system also comprises: controller, is connected with distance measuring sensor, and controller is for receiving the range information between stator blade and adjusting vane.
Further, above-mentioned cooling system also comprises: temperature transducer, is installed on the liquid outlet of engine coolant, and temperature transducer is for detecting the temperature value of cooling liquid.
Further, above-mentioned cooling system also comprises: controller, and its signal input part is connected with temperature transducer, for receiving temperature value; The signal output part of controller is for sending the regulated signal determined according to temperature value; Controlling device is connected with the signal output part of controller, and controlling device is used for according to the radial distance between regulated signal adjustment stator blade and adjusting vane.
Can find out, the flexible radial distance that can regulate between stator blade and adjusting vane abutting end of controlling device.When controlling device is extended, the distance between stator blade and adjusting vane increases, and then the entire length of fan blade is increased, and fan volumetric efficiency increases, and improves the heat dissipation potential of system; On the contrary, when controlling device shortens, the entire length of fan blade reduces, and fan volumetric efficiency reduces, and reduces the heat dissipation potential of system.In addition, in the present invention, the length of each blade of fan can regulate separately, independently of one another, is independent of each other.
Another aspect, the invention allows for a kind of engineering machinery, comprises motor, motor is provided with any one engine-cooling system above-mentioned.
Because engine-cooling system has above-mentioned effect, so the engineering machinery with this cooling system also has correspondingly technique effect.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the front view of fan embodiment of the present invention;
Fig. 2 is in fan embodiment of the present invention, the stereogram of controlling device preferred implementation;
Fig. 3 be embodiment illustrated in fig. 2 in, the connection diagram of controlling device and stator blade, adjusting vane;
Fig. 4 is the stereogram of engine-cooling system embodiment of the present invention;
Fig. 5 is the structured flowchart of engine-cooling system embodiment of the present invention.
Description of reference numerals:
1 fan
11 stator blades
12 adjusting vanes
13 controlling devices
14 wheel carriers
15 slide rails
2 wind scoopers
3 distance measuring sensors
4 temperature transducers
5 controllers
Embodiment
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Fan embodiment:
See Fig. 1, there is shown the preferred embodiment of fan of the present invention.As shown in the figure, this fan 1 comprises multiple blade, and each blade includes: radially arrange and the stator blade 11 that mutually superposes of abutting end and adjusting vane 12 and telescopic controlling device 13.Wherein, stator blade 11 is connected by telescopic controlling device 13 with adjusting vane 12, and controlling device 13 is for regulating the radial distance between stator blade 11 and adjusting vane 12 abutting end.
Specifically, the first end of stator blade 11 is connected with the wheel carrier 14 of this fan, and wheel carrier 14 is for providing the motor (not shown) of power to be connected with for this fan 1.The edge of stator blade 11 and adjusting vane 12 overlapping portion is provided with slide rail 15, when controlling device 13 is stretched, stator blade 11 and adjusting vane 12 overlapping portion can in this slide rail 15 relative sliding.Controlling device 13 can select oil cylinder, and one end of oil cylinder is connected with the second end of stator blade 11, and the other end of oil cylinder is connected with the first end of adjusting vane 12.Can find out, the flexible radial distance that can regulate between the second end of stator blade 1 and the first end of adjusting vane 12 of oil cylinder, and then regulate the length of blade of fan 1, the heat dissipation potential of fan can be regulated.In addition, the length of each blade of this fan can regulate separately, independently of one another, is independent of each other.
During concrete enforcement, the flexible blade that adjusting vane 12 can adopt the light alloy such as PAG, PVC to make; Certainly, other materials also can be selected to make, the concrete material of the present invention to adjusting vane 12 does not limit.
See Fig. 2, there is shown another preferred implementation of controlling device.As shown in the figure, this controlling device comprises the first electromagnetic pole 131, second electromagnetic pole 132 and elastic member 133.Wherein, the first electromagnetic pole 131 is connected to adjusting vane 12; Second electromagnetic pole 132 is connected to stator blade 11; Elastic member 133 is connected between the first electromagnetic pole 131 and the second electromagnetic pole 132.
Can find out, under conventional sense, the elastic member 133(such as spring etc. between the first electromagnetic pole 131 and the second electromagnetic pole 132) in the raw, namely tensionless winkler foundation is without compressive state; When making the first electromagnetic pole 131 and the energising of the second electromagnetic pole 132 produces same magnetic, first electromagnetic pole 131 and the second electromagnetic pole 132 are separated from each other, elastic member stretches, and the area of overlap of stator blade 11 and adjusting vane 12 reduces, and fan blade radial length increases; Otherwise when making the first electromagnetic pole 131 and the second electromagnetic pole 132 with opposite magnetic, the distance between the first electromagnetic pole 131 and the second electromagnetic pole 132 reduces, and elastic member 133 compresses, the area of overlap of stator blade 11 and adjusting vane 12 increases.
It should be noted that: in the present embodiment, give two kinds of preferred implementations of controlling device.But when related domain people should be appreciated that and specifically implements, the structure of controlling device is not limited in this, as long as can be scalable along the radial direction of fan, the embodiment of the present invention will not enumerate at this.
As can be seen from above-described embodiment, the fan in the present invention changes the entire length of fan blade by telescopic controlling device, and then regulates the heat dissipation potential of fan.
Engine-cooling system embodiment:
See Fig. 1 to Fig. 5, there is shown the first preferred embodiment of engine-cooling system in the present invention.As shown in the figure, this system comprises fan 1.Wherein, each blade of fan 1 includes: radially arrange and the stator blade 11 that mutually superposes of abutting end and adjusting vane 12 and telescopic controlling device 13.Wherein, stator blade 11 is connected by telescopic controlling device 13 with adjusting vane 12, and telescopic controlling device 13 is for regulating the radial distance between stator blade 11 and adjusting vane 12 abutting end.
Generally speaking, engine-cooling system also comprises radiator and wind scooper 2 etc. usually.Wherein, wind scooper 2 is arranged at the outside of adjusting vane 12, and and leaves gap between the outside of adjusting vane 12.Fan 1 is induced draught fan, and cooling air successively by after radiator, wind scooper 2, fan 1, reduces coolant temperature by heat exchange method under the effect of fan suction.
Specifically, the first end of stator blade 11 is connected with the wheel carrier 14 of fan 1, and wheel carrier 14 is for providing the motor (not shown) of power to be connected with for this fan 1.Telescopic controlling device 13 can select oil cylinder, and one end of oil cylinder is connected with the second end of stator blade 11, and the other end of oil cylinder is connected with the first end of adjusting vane 12.
Can find out, the flexible radial distance that can regulate between stator blade 11 and adjusting vane 12 of oil cylinder.When the piston rod of oil cylinder stretches out, distance between stator blade 11 and adjusting vane 12 increases, and then the entire length of fan blade is increased, and wind scooper 2 maintains static, so reduce the gap between adjusting vane 12 and wind scooper 2, thus reduction hot air reflux, increase fan volumetric efficiency, improve the heat dissipation potential of system; When the piston rod of oil cylinder is regained, the entire length of fan blade reduces, and increases the gap between adjusting vane 12 and wind scooper 2, reduces the heat dissipation potential of system.In addition, in the present embodiment, the length of each blade of fan can regulate separately, independently of one another, is independent of each other.
During concrete enforcement, the flexible blade that adjusting vane 12 can adopt the light alloy such as PAG, PVC to make; Certainly, other materials also can be selected to make, the concrete material of the present invention to adjusting vane 12 does not limit.
It should be noted that: in the present embodiment, give two kinds of preferred implementations of controlling device.But when related domain people should be appreciated that and specifically implements, the structure of controlling device is not limited in this, as long as can be scalable along the radial direction of fan, the present invention will not enumerate at this.
Preferably, in the various embodiments described above, engine-cooling system also comprises: distance measuring sensor 3, and it is installed on wind scooper 2 inwall, and distance measuring sensor 3 is for detecting the distance between the inwall of wind scooper 2 and the outer rim of adjusting vane 12.When fan 1 rotates, distance measuring sensor 3 can detect the distance between the second end of adjusting vane 12 and wind scooper 2 in real time, improves the Security run.
Preferably, in the various embodiments described above, engine-cooling system also comprises: temperature transducer 4 and controller 5.Wherein, temperature transducer 4 is installed on the liquid outlet of engine coolant, and temperature transducer 4 is for detecting the temperature value of cooling liquid.The signal input part of controller 5 is connected with temperature transducer 4, and for receiving this temperature value, the signal output part of controller 5 is for sending the regulated signal determined according to this temperature value.The control end of oil cylinder is connected with the signal output part of controller 5, and oil cylinder for receiving this regulated signal, and regulates the radial distance between stator blade 11 and adjusting vane 12 according to this regulated signal.
Preferably, when specifically implementing, controller 5 can also be connected with distance measuring sensor 3, for receiving the range information between wind scooper 2 and the second end of adjusting vane 12.
Particularly, when distance measuring sensor 3 detects the temperature of engine coolant higher than setting value, the piston rod that controller 5 controls oil cylinder 13 stretches out, and the distance between stator blade 11 and adjusting vane 12 is increased, and namely the entire length of blade 1 increases; Correspondingly, the gap between adjusting vane 12 and wind scooper 2 reduces, and reduces the hot air reflux effect of fan 1, improves the air quantity of cooling system, improve the heat dissipation potential of system; Now, controller 5 also receives the distance between the adjusting vane 12 of distance measuring sensor 3 detection and wind scooper 2, monitors in real time this distance, to ensure the Security run.When the temperature of the engine coolant that distance measuring sensor 3 detects is lower than setting value, the piston rod that controller 5 controls oil cylinder is regained, distance between stator blade 11 and adjusting vane 12 is reduced, namely the entire length of blade 1 reduces, correspondingly, distance between adjusting vane 12 and wind scooper 2 increases, and reduces the heat dissipation potential of system.
See Fig. 2, Fig. 3, there is shown the second preferred embodiment of engine-cooling system of the present invention.In the present embodiment, controlling device 13 adopts the first electromagnetic pole 131, second electromagnetic pole 132 and elastic member 133 to realize, and its specific implementation process is see the relevant portion in fan embodiment, and the present invention does not repeat them here.
See Fig. 2, Fig. 3, under conventional sense, the elastic member 133(such as spring etc. between the first electromagnetic pole 131 and the second electromagnetic pole 132) in the raw, namely tensionless winkler foundation is without compressive state; When system temperature is too high, controller 5 controls the first electromagnetic pole 131 and the energising of the second electromagnetic pole 132 produces same magnetic, utilize magnetic pole principle of same-sex repulsion, first electromagnetic pole 131 and the second electromagnetic pole 132 are separated from each other, elastic member 133 stretches, the area of overlap of stator blade 11 and adjusting vane 12 reduces, and the overall radial length of fan blade increases; Otherwise when system temperature is too low, controller 5 controls the first electromagnetic pole 131 and the second electromagnetic pole 132 with opposite magnetic, utilize principle of opposite sex attraction, distance between first electromagnetic pole 131 and the second electromagnetic pole 132 reduces, elastic member 133 compresses, and the area of overlap of stator blade 11 and adjusting vane 12 increases.
Pass through the various embodiments described above, can find out, this engine-cooling system can according to the temperature of engine coolant, the entire length of real-time adjustment fan blade, and then regulate the heat dissipation potential of cooling system, guarantee that motor runs in optimum temperature, avoid the problem that motor that available engine cooling fan causes because diameter is non-adjustable can not run in optimum temperature.
Engineering machinery implements example:
The invention allows for a kind of engineering machinery, for excavator, the motor of this project machinery is provided with any one cooling system above-mentioned.Wherein, the specific implementation process of cooling system illustrates with reference to above-mentioned, and the present invention does not repeat them here.
Because engine-cooling system has above-mentioned effect, so the engineering machinery with this engine-cooling system also has corresponding technique effect.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. an engine-cooling system, be provided with fan, described fan comprises blade, it is characterized in that, described fan is induced draught fan, and each described blade includes: radially arrange and the stator blade (11) that mutually superposes of abutting end and adjusting vane (12) and telescopic controlling device (13); Wherein, described stator blade (11) is connected by described controlling device (13) with described adjusting vane (12), and described controlling device (13) is for regulating the radial distance between described stator blade (11) and described adjusting vane (12) abutting end; The edge of described stator blade (11) and adjusting vane (12) overlapping portion is provided with slide rail (15), when controlling device (13) is stretched, stator blade (11) and adjusting vane (12) overlapping portion can in slide rail (15) relative sliding; Described adjusting vane (12) adopts PAG or PVC material to make;
Described engine-cooling system also comprises: wind scooper (2), is arranged in the outside of described adjusting vane (12); Distance measuring sensor (3), is installed on described wind scooper (2), and described distance measuring sensor (3) is for detecting the distance between described wind scooper (2) and described adjusting vane (12).
2. engine-cooling system according to claim 1, it is characterized in that, described controlling device (13) comprising: oil cylinder, and its one end is connected with described stator blade (11), and the other end is connected with described adjusting vane (12).
3. engine-cooling system according to claim 1, is characterized in that, described controlling device (13) comprising:
First electromagnetic pole (131), is connected to described adjusting vane (12);
Second electromagnetic pole (132), is connected to described stator blade (11);
Elastic member (133), is connected between described first electromagnetic pole (131) and the second electromagnetic pole (132).
4. engine-cooling system according to claim 3, is characterized in that, described elastic member (133) is spring.
5. the engine-cooling system according to any one of claim 1-4, is characterized in that, also comprises:
Controller (5), be connected with described distance measuring sensor (3), described controller (5) for receiving the range information between described stator blade (11) and described adjusting vane (12), and is monitored in real time to the distance between described stator blade (11) and described adjusting vane (12).
6. engine-cooling system according to claim 5, is characterized in that, also comprises:
Temperature transducer (4), be installed on the liquid outlet of described engine coolant, described temperature transducer (4) is for detecting the temperature value of described cooling liquid, be connected with the signal input part of described controller (5), so that described temperature value is sent to described controller (5); The signal output part of described controller (5) is for sending the regulated signal determined according to described temperature value;
Described controlling device (13) is connected with the signal output part of described controller (5), and described controlling device (13) is for regulating the radial distance between described stator blade (11) and described adjusting vane (12) according to described regulated signal.
7. an engineering machinery, comprises motor, it is characterized in that, described motor is provided with the engine-cooling system according to any one of claim 1 to 6.
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CN102878101B true CN102878101B (en) | 2015-10-14 |
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