CN211258784U - Vehicle, power system and air cooling device thereof - Google Patents
Vehicle, power system and air cooling device thereof Download PDFInfo
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- CN211258784U CN211258784U CN201922171510.6U CN201922171510U CN211258784U CN 211258784 U CN211258784 U CN 211258784U CN 201922171510 U CN201922171510 U CN 201922171510U CN 211258784 U CN211258784 U CN 211258784U
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Abstract
The utility model discloses an air cooling device, which comprises a cooling fan and a fan supporting structure used for supporting the cooling fan, wherein the fan supporting structure is provided with a fan belt wheel connected with the cooling fan; the crankshaft belt wheel is in transmission connection with the fan belt wheel; wherein the diameter of the crankshaft pulley is greater than the diameter of the fan pulley. The air cooling device can improve the output speed ratio of the cooling fan, and solves the problem of poor heat dissipation effect of the national six-engine. Furthermore, the utility model also discloses a driving system and a vehicle including above-mentioned driving system of including above-mentioned air cooling device.
Description
Technical Field
The utility model relates to an engine cooling technology field especially relates to an air cooling device. In addition, the utility model discloses still relate to a driving system and a vehicle including above-mentioned driving system including above-mentioned air cooling device.
Background
The pollutant emission standard of motor vehicles in the sixth stage of the country puts forward a new requirement on the emission of vehicle engines, the power systems of the vehicles need to be updated along with the emission standard, the heat load of the six national engines is high, however, the cooling device of the whole vehicle cannot meet the heat dissipation requirement of the engines, and the problem of water temperature alarm and even boiling is often caused.
At present, the heat dissipation of a power system is realized by directly connecting a cooling fan with a crankshaft of an engine, and in order to improve the heat dissipation performance of the power system, two improvement modes are mainly provided for parameters of the cooling fan: firstly, the output speed ratio of the cooling fan is improved; and the diameter of the cooling fan is increased. Since the space of the whole vehicle is limited and the diameter of the cooling fan is often limited, how to increase the output speed ratio of the cooling fan becomes a problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an air cooling device, this air cooling device can improve cooling fan's output speed ratio, has solved the poor problem of radiating effect of six engines in state. Another object of the present invention is to provide a power system including the above air-cooling device and a vehicle including the above power system.
In order to achieve the above object, the present invention provides an air cooling device, including a cooling fan, further including: a fan support structure to support the cooling fan, the fan support structure having a fan pulley coupled to the cooling fan; the crankshaft belt wheel is in transmission connection with the fan belt wheel; wherein the diameter of the crankshaft pulley is greater than the diameter of the fan pulley.
Preferably, the fan support structure further comprises: a fan bracket; the fan connector is arranged at the first end of the fan belt wheel and is connected with the cooling fan; the bearing is sleeved at the shaft end of the fan bracket; wherein, the outer lane of bearing links to each other with the fan band pulley.
Preferably, a positioning washer which is abutted against the first end of the inner ring of the bearing is arranged at the shaft end of the fan support; the inner ring of the fan belt wheel is provided with a positioning bulge which is propped against the first end of the outer ring of the bearing.
Preferably, the shaft end of the fan bracket is provided with a positioning shaft shoulder which is abutted against the second end of the inner ring of the bearing; and the inner ring of the fan belt wheel is provided with a positioning retainer ring which is propped against the second end of the outer ring of the bearing.
Preferably, a dust cover for protecting the bearing is arranged between the second end of the fan pulley and the shaft end of the fan bracket.
Preferably, the second end of the fan pulley is provided with a mounting groove, the bottom of the mounting groove is provided with a sealing chamber, the sealing chamber is provided with an opening for the first sealing end of the dust cover to enter, and the opening is arranged close to the bearing; and the second sealing end of the dust cover is arranged between the second end of the inner ring of the bearing and the positioning shaft shoulder.
Preferably, the bearing is a double row ball bearing.
Compared with the prior art, the utility model provides an air cooling device improves cooling fan's output speed ratio through fan band pulley and bent axle band pulley. Specifically, the cooling fan is connected with the fan belt wheel, so that the cooling fan and the fan belt wheel rotate at the same angular speed, the crankshaft belt wheel is connected with the fan belt wheel through the transmission belt, the crankshaft belt wheel drives the fan belt wheel to rotate, the diameter of the crankshaft belt wheel is larger than that of the fan belt wheel, therefore, in the process of rotating the transmission belt, the angular speed of a crankshaft belt path is smaller than the angular speed of the fan belt wheel, namely the rotational angular speed of the cooling fan, and the output angular speed of the cooling fan is further improved.
The utility model also provides a driving system, include: an engine; the air cooling device according to any one of the above items; wherein the engine is connected to the crankshaft pulley via a crankshaft.
Preferably, the engine is in particular a diesel engine.
The utility model also provides a vehicle, include as above-mentioned arbitrary driving system.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural view of an air cooling device provided by the present invention;
fig. 2 is a schematic structural view of a fan supporting structure provided in the present invention;
FIG. 3 is an enlarged view of a portion A of FIG. 2;
wherein the content of the first and second substances,
1-cooling fan, 2-fan supporting structure, 21-fan belt wheel, 211-positioning bulge, 212-mounting groove, 213-sealing chamber, 22-fan bracket, 221-positioning shaft shoulder, 23-fan connector, 24-bearing, 25-positioning gasket, 26-positioning retainer ring, 3-driving belt, 4-crankshaft belt wheel and 5-dustproof cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of an air cooling device according to the present invention; fig. 2 is a schematic structural view of a fan supporting structure provided in the present invention; fig. 3 is a partially enlarged view of a portion a in fig. 2.
The utility model provides an air cooling device, as shown in fig. 1, this air cooling device mainly includes cooling fan 1, fan bearing structure 2 and bent axle band pulley 4, wherein, cooling fan 1 can blow to the engine to realize the air-cooled heat dissipation of engine, as preferred, cooling fan 1 is used for induced drafting, make wind flow to cooling fan 1 from the engine, and then realize the cooling of blowing to the engine, of course, cooling fan 1 can also blow, make wind flow to the engine from cooling fan 1; the fan supporting structure 2 is used for supporting the cooling fan 1, and as shown in fig. 2, it has a fan pulley 21 connected with the cooling fan 1, so that the fan pulley 21 and the cooling fan 1 can be regarded as the same rotating body, that is, the angular velocities of the fan pulley 21 and the cooling fan 1 are the same during the rotation of the fan pulley 21; the crankshaft pulley 4 is in driving connection with the fan pulley 21, preferably, the transmission of torque is realized by the transmission belt 3, and the crankshaft pulley 4 is connected with the engine through the crankshaft, so that the crankshaft pulley 4 is driven by the engine to rotate, and the cooling fan 1 is rotated to blow the engine.
It should be noted that the diameter of the crankshaft pulley 4 is larger than the diameter of the fan pulley 21, and under the action of the transmission belt 3, the linear velocity of the circumference of the crankshaft pulley 4 is equal to the linear velocity of the circumference of the fan pulley 21, so that the rotational angular velocity of the fan pulley 21 is larger than the rotational angular velocity of the crankshaft pulley 4, and the output speed ratio of the cooling fan 1 is larger than 1. Because the output speed ratio of the cooling fan 1 is equal to 1 in the manner that the crankshaft is directly connected with the engine in the prior art, the air cooling device improves the cooling capacity of the cooling fan 1, thereby meeting the national six standards (namely the national sixth-stage pollutant emission standard of motor vehicles) or the heat load requirements of the new-stage standard engine.
It should be noted that the speed ratio of the cooling fan 1 refers to the ratio of the angular speed of the cooling fan 1 to the angular speed of the crankshaft; the diameter proportional relationship between the crankshaft pulley 4 and the fan pulley 21 is determined according to the practical conditions such as the diameter of the cooling fan 1, the layout space of the power system, and the type of the engine, and is not particularly limited herein as long as the diameter of the connection part of the fan pulley 21 and the transmission belt 3 is ensured to be smaller than that of the crankshaft pulley 4.
The following preferred embodiments are given here for the structural configuration of the fan support structure 2:
in the first embodiment, as shown in fig. 2, the fan support structure 2 further includes a fan bracket 22, a fan connector 23, and a bearing 24. Wherein, the inner ring of the bearing 24 is sleeved on the shaft end of the fan bracket 22, and the outer ring of the bearing 24 is connected with the fan belt wheel 21, so that the fan belt wheel 21 can rotate around the shaft end of the fan bracket 22; the fan connector 23 is formed in a disc shape, and a side surface thereof is attached to an end surface of the first end of the fan pulley 21 and is connected thereto by a bolt, so that the fan connector 23 and the fan pulley 21 rotate synchronously, and the fan connector 23 is further connected to the cooling fan 1, and preferably, a center hole of the fan connector 23 is keyed to a rotation shaft of the cooling fan 1, so that the cooling fan 1 and the fan connector 23 can rotate synchronously.
The cooling fan 1 and the fan pulley 21 are respectively provided at both ends of the fan connector 23; herein, "synchronously rotate" means that two rotating bodies rotate at the same angular velocity at the same time.
In a second embodiment, as shown in fig. 2, the shaft end of the fan bracket 22 is provided with a positioning washer 25 which abuts against the first end of the inner ring of the bearing 24, wherein the positioning washer 25 is fixed to the shaft end of the fan bracket 22 by bolts, and the diameter of the positioning washer 25 is slightly larger than that of the shaft end of the fan bracket 22, so that the positioning washer 25 can abut against the first end of the inner ring of the bearing 24 to prevent the inner ring of the bearing 24 from moving towards the cooling fan 1.
Further, the inner ring of the fan pulley 21 has a positioning projection 211, a side surface of the positioning projection 211 abuts against the first end of the outer ring of the bearing 24 to function as a stopper for the outer ring of the bearing 24 to move toward the cooling fan 1, wherein the positioning projection 211 is integrally formed with the fan pulley 21.
It will be appreciated that, in order to avoid positional interference between the positioning washer 25 and the fan coupling 23, it is preferable to design the first end of the fan pulley 21 to protrude from the axial end of the fan bracket 22, as shown in fig. 2, so that a space for placing the positioning washer 25 is formed between the fan coupling 23 and the axial end of the fan bracket 22. Of course, it is also possible to design the central portion of the fan connector 23 to project toward the cooling fan 1 so that a space for placing the positioning washer 25 is formed between the fan connector 23 and the shaft end of the fan bracket 22.
In the third embodiment, as shown in fig. 2, the shaft end of the fan bracket 22 further has a positioning shoulder 221, and the annular surface of the positioning shoulder 221 abuts against the second end of the inner ring of the bearing 24 to prevent the inner ring of the bearing 24 from moving away from the cooling fan 1.
The inner ring of the fan pulley 21 is preferably provided with a positioning retainer 26, more specifically, the inner ring surface of the fan pulley 21 is provided with a groove, the outer edge portion of the positioning retainer 26 is fixed in the groove, and the portion of the positioning retainer 26 protruding from the groove abuts against the second end of the outer ring of the bearing 24 to block the outer ring of the bearing 24 from moving in a direction away from the cooling fan 1, and the positioning retainer 26 is preferably a spring retainer.
According to the first embodiment, the fan connector 23 is closely attached to the fan pulley 21 so that the foreign matter such as dust cannot enter the bearing 24 from the first end direction of the bearing 24, and in order to prevent the foreign matter such as dust from entering the bearing 24 from the second end direction of the bearing 24, as shown in fig. 2, a dust cover 5 is further provided between the second end of the fan pulley 21 and the shaft end of the fan bracket 22 so as to isolate the space in the first end direction of the bearing 24 by the dust cover 5, and preferably, the dust cover 5 has a circular ring shape as viewed in the axial direction.
In the fourth embodiment, as shown in fig. 2 and 3, the second end of the fan pulley 21 is provided with a mounting groove 212, the groove bottom of the mounting groove 212 is provided with a seal chamber 213, and the seal chamber 213 has an opening for the first seal end of the dust cover 5 to enter from the mounting groove 212, and the opening is arranged close to the bearing 24 in the radial direction of the fan pulley 21. Specifically, after the first sealing end of the dust cover 5 enters the sealing chamber 213 from the opening, the first sealing end abuts against the radial chamber wall of the sealing chamber 213 to form a labyrinth seal, so that impurities are difficult to enter the sealing chamber 213 through the gap between the dust cover 5 and the fan pulley 21 and enter the inside of the bearing 24 through the mounting groove 212.
In addition, the second sealing end of the dust cover 5 is arranged between the second end of the inner ring of the bearing 24 and the positioning shoulder 221, that is, the second sealing of the dust cover 5 is clamped by the inner ring of the bearing 24 and the annular surface of the positioning shoulder 221, so as to play a role of sealing.
It can be seen that, because the sealing ends of the inner side and the outer side of the dust cover 5 are sealed, the dust cover 5 separates the space of the second end of the bearing 24, so that the bearing 24 is located in the relatively sealed space, and finally the service life of the bearing 24 is prolonged.
Preferably, as shown in fig. 2, the bearing 24 is a double-row ball bearing.
The utility model provides a driving system, it mainly includes the engine and as above the air cooling device, wherein, the engine passes through the bent axle and links to each other with bent axle band pulley 4 to drive cooling fan 1 rotatory, and the cylinder body of engine is fixed in through the bolt preferably to fan bracket 22's stiff end.
It should be noted that the engine is preferably an engine of the national sixth-stage emission standard of pollutants for motor vehicles, in other words, the engine should meet the latest national emission standard, and as a further preference, the engine is specifically a diesel engine meeting the limit of emission of pollutants for heavy-duty diesel vehicles and the measurement method (the sixth stage of china), and of course, the engine may also be a gasoline engine; the engine, the support block, the crankshaft and other parts of the power system can be referred to the prior art and are not expanded herein.
The utility model provides a vehicle, this vehicle include the driving system as described above, and the other parts of vehicle can refer to prior art, do not describe here.
It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The vehicle, the power system and the air cooling device thereof provided by the utility model are introduced in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. An air-cooling device comprises a cooling fan (1), and is characterized by further comprising:
a fan support structure (2) for supporting the cooling fan (1), the fan support structure (2) having a fan pulley (21) connected to the cooling fan (1);
the crankshaft belt wheel (4) is in transmission connection with the fan belt wheel (21);
wherein the diameter of the crankshaft pulley (4) is larger than the diameter of the fan pulley (21).
2. An air-cooling device according to claim 1, characterized in that the fan support structure (2) further comprises:
a fan bracket (22);
a fan connector (23) which is arranged at the first end of the fan belt wheel (21) and is connected with the cooling fan (1);
the bearing (24) is sleeved at the shaft end of the fan bracket (22);
wherein the outer ring of the bearing (24) is connected with the fan belt wheel (21).
3. The air-cooling device of claim 2,
a positioning washer (25) which is abutted against the first end of the inner ring of the bearing (24) is arranged at the shaft end of the fan support (22);
the inner ring of the fan pulley (21) has a positioning protrusion (211) that abuts against a first end of the outer ring of the bearing (24).
4. The air-cooling device according to claim 2 or 3,
the shaft end of the fan bracket (22) is provided with a positioning shaft shoulder (221) which is abutted against the second end of the inner ring of the bearing (24);
and a positioning retainer ring (26) which is abutted against the second end of the outer ring of the bearing (24) is arranged on the inner ring of the fan belt wheel (21).
5. The air-cooling device according to claim 4, wherein a dust cover (5) for protecting the bearing (24) is provided between the second end of the fan pulley (21) and the axial end of the fan bracket (22).
6. The air-cooling device according to claim 5,
a second end of the fan belt wheel (21) is provided with a mounting groove (212), a sealing chamber (213) is arranged at the bottom of the mounting groove (212), the sealing chamber (213) is provided with an opening for the first sealing end of the dust cover (5) to enter, and the opening is arranged close to the bearing (24);
the second sealing end of the dust cover (5) is arranged between the second end of the inner ring of the bearing (24) and the positioning shaft shoulder (221).
7. Air-cooling device according to claim 6, characterized in that the bearing (24) is a double-row ball bearing.
8. A power system, comprising:
an engine;
the air-cooling device as defined in any one of claims 1 to 7;
wherein the engine is connected with the crankshaft pulley (4) through a crankshaft.
9. The powertrain system of claim 8, wherein the engine is a diesel engine.
10. A vehicle comprising a powertrain as claimed in claim 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922171510.6U CN211258784U (en) | 2019-12-06 | 2019-12-06 | Vehicle, power system and air cooling device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922171510.6U CN211258784U (en) | 2019-12-06 | 2019-12-06 | Vehicle, power system and air cooling device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211258784U true CN211258784U (en) | 2020-08-14 |
Family
ID=71990473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922171510.6U Active CN211258784U (en) | 2019-12-06 | 2019-12-06 | Vehicle, power system and air cooling device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211258784U (en) |
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2019
- 2019-12-06 CN CN201922171510.6U patent/CN211258784U/en active Active
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