阅读说明：本技术 风扇端隙调整机构、导风罩及发动机冷却系统 (Fan end gap adjusting mechanism, wind scooper and engine cooling system ) 是由 孙琳 于 2020-05-15 设计创作，主要内容包括：本申请涉及冷却装置技术领域,尤其是涉及一种风扇端隙调整机构、导风罩及发动机冷却系统。风扇端隙调整机构用于导风罩,所述风扇端隙调整机构包括调节扇；所述调节扇安装于所述导风罩的护风圈的内圈处,且所述调节扇与所述护风圈铰接；冷却风扇产生的风力能够带动所述调节扇相对于所述护风圈转动预设角度,以改变所述冷却风扇的扇叶与所述护风圈之间的端隙。本申请提供的风扇端隙调整机构,能够依据风扇不同的转速,调整调节扇开启不同的角度,从而调整风扇端隙,以改变冷却风扇的容积效率。(The application relates to the technical field of cooling devices, in particular to a fan end gap adjusting mechanism, an air guide cover and an engine cooling system. The fan end gap adjusting mechanism is used for the wind scooper and comprises an adjusting fan; the adjusting fan is arranged at the inner ring of the wind protection ring of the wind scooper and is hinged with the wind protection ring; the wind power generated by the cooling fan can drive the adjusting fan to rotate for a preset angle relative to the air protection ring so as to change the end gap between the fan blade of the cooling fan and the air protection ring. The application provides a fan end clearance guiding mechanism can adjust the fan according to the different rotational speeds of fan and open different angles to adjustment fan end clearance is in order to change cooling fan's volumetric efficiency.)

1. A fan end gap adjusting mechanism is used for an air guide cover and is characterized by comprising an adjusting fan;

the adjusting fan is arranged at the inner ring of the wind protection ring of the wind scooper and is hinged with the wind protection ring; the wind power generated by the cooling fan can drive the adjusting fan to rotate for a preset angle relative to the air protection ring so as to change the end gap between the fan blade of the cooling fan and the air protection ring.

2. The fan endplay adjustment mechanism of claim 1, wherein a direction from the first end of the windguard to the second end of the windguard is a wind direction of the cooling fan; the one end of adjusting the fan is the installation end, the installation end with protect the second end of solar or lunar halo articulated, the other end of adjusting the fan is the free end.

3. The fan endplay adjustment mechanism of claim 1, further comprising a hinge;

the adjusting fan is connected with the wind protection ring through the hinge.

4. The fan endplay adjustment mechanism of claim 3, wherein the hinge is provided with a damping structure having a tendency to resist rotation of the adjustment fan relative to the shroud.

5. The fan endplay adjustment mechanism of claim 4, wherein the damping force of the damping structure is adjustable.

6. The fan end gap adjustment mechanism of claim 1, wherein the shape of the adjustment fan is adapted to the shape of the inner ring of the windguard.

7. The fan end gap adjustment mechanism of claim 6, wherein when the wind guard ring is circular, the adjusting fan comprises a plurality of arc-shaped adjusting plates, and the plurality of adjusting plates are arranged at intervals on the inner ring of the wind guard ring.

8. An air scoop according to any of claims 1 to 7, comprising a fan end gap adjustment mechanism.

9. An engine cooling system comprising a cooling fan and the wind scooper of claim 8;

the cooling fan is positioned at the inner ring of the wind protection ring of the wind scooper.

10. The engine cooling system of claim 9, further comprising a radiator;

the radiator is positioned on one side of the wind scooper far away from the engine.

Technical Field

The application relates to the technical field of cooling devices, in particular to a fan end gap adjusting mechanism, an air guide cover and an engine cooling system.

Background

The engineering machinery generally works in the open air environment, is directly irradiated by sunlight in summer, has high surface temperature, and needs to work under large load for a long time in a high-temperature environment. If the heat generated by the engine exceeds the heat dissipation capacity of the cooling system, the water temperature of the engine is increased, and the overall performance of the engineering machinery is affected. To accommodate summer ambient conditions, the engine is typically provided with a cooling system having a greater heat dissipation capacity. When the engineering machinery with a cooling system with high heat dissipation capacity works in a low-temperature environment in winter, the engine is in a low-temperature running state for a long time, so that the power of the engine is wasted, the combustion condition of fuel is poor, the engine cannot work, the content of hydrocarbons in tail gas is high, and the environment is polluted.

Disclosure of Invention

The application aims to provide a fan end gap adjusting mechanism, an air guide cover and an engine cooling system, which are used for adjusting the fan end gap and changing the volumetric efficiency of a cooling fan.

The application provides a fan end gap adjusting mechanism which is used for an air guide cover and comprises an adjusting fan;

the adjusting fan is arranged at the inner ring of the wind protection ring of the wind scooper and is hinged with the wind protection ring; the wind power generated by the cooling fan can drive the adjusting fan to rotate for a preset angle relative to the air protection ring so as to change the end gap between the fan blade of the cooling fan and the air protection ring.

In the above technical solution, further, a direction from the first end of the wind protection ring to the second end of the wind protection ring is a wind direction of the cooling fan; the one end of adjusting the fan is the installation end, the installation end with protect the second end of solar or lunar halo articulated, the other end of adjusting the fan is the free end.

In the above technical solution, further, a hinge is further included;

the adjusting fan is connected with the wind protection ring through the hinge.

In the above technical solution, further, the hinge is provided with a damping structure, and the damping structure has a tendency of preventing the adjusting fan from rotating relative to the wind-guard ring.

In the above technical solution, further, the damping force of the damping structure is adjustable.

In the above technical solution, further, the shape of the adjusting fan is adapted to the shape of the inner ring of the wind protection ring.

In the above technical scheme, further, when the shape of protecting the wind circle is the ring shape, the regulation fan includes a plurality of curved regulating plates, and is a plurality of the regulating plate interval sets up protect the inner circle of wind circle.

The application also provides an air guide cover, which comprises the fan end gap adjusting mechanism.

The application also provides an engine cooling system, which comprises a cooling fan and the wind scooper in the scheme;

the cooling fan is positioned at the inner ring of the wind protection ring of the wind scooper.

In the above technical solution, further, the heat sink further comprises a heat sink;

the radiator is positioned on one side of the wind scooper far away from the engine.

Compared with the prior art, the beneficial effect of this application is:

the application provides a fan end clearance guiding mechanism can adjust the fan according to the different rotational speeds of fan and open different angles to adjustment fan end clearance is in order to change cooling fan's volumetric efficiency.

The application also provides an air guide cover, which comprises the fan end gap adjusting mechanism. Based on the above analysis, the wind scooper also has the above beneficial effects, and is not described herein again.

The application also provides an engine cooling system which comprises the wind scooper. Based on the above analysis, the engine cooling system has the same advantages as described above, and will not be described in detail herein.

Drawings

In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of an air guiding cover provided in the present application at a first viewing angle;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

fig. 3 is a schematic structural view of the wind scooper provided by the present application at a second viewing angle;

FIG. 4 is a schematic diagram of an engine cooling system according to the present disclosure.

In the figure: 101-adjusting the fan; 102-a wind scooper; 103-wind protection ring; 104-a first end; 105-a second end; 106-a mounting end; 107-free end; 108-an adjusting plate; 109-a cooling fan; 110-a heat sink.

Detailed Description

The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.