CN209385404U - A kind of wheel hub, axial-flow leaf and air conditioner - Google Patents

Abstract

The utility model provides a wheel hub, an axial flow blade and an air conditioner, and relates to the technical field of air conditioners. The hub described in the utility model includes a hub body, a central shaft, a first reinforcing rib and a second reinforcing rib; the central shaft is located inside the hub and is fixedly connected with the base of the hub; the first reinforcing rib The two ends of the center shaft and the outer ring of the hub are respectively connected; the second reinforcement rib is arranged on the side of the first reinforcement rib, and the first reinforcement rib and the second reinforcement rib are bifurcated The second reinforcing rib is connected with the first reinforcing rib and the hub body; the axial flow fan described in the utility model includes a hub and blades, and the blades are arranged along the circumference of the hub . In the wheel hub, axial flow blade and air conditioner described in the utility model, the second reinforcement rib is arranged on the side of the first reinforcement rib to reduce the maximum equivalent stress borne by the hub under the condition of the same speed, thereby effectively improving the performance of the hub and axial flow blade. Strength of.

Description

Wheel hub, axial flow fan blade and air conditioner

technical field

The utility model relates to the technical field of air conditioning, in particular to a wheel hub, an axial flow blade and an air conditioner.

Background technique

In the prior art, the axial-flow fan blades of the air-conditioning outdoor unit drive the air to do work through the high-speed rotation of the blades. During the high-speed rotation of the blades, since the hub of the axial-flow fan is subjected to periodic centrifugal force, the strength relationship of the hub to the service life of the axial fan blades. The conventional improvement method is: setting ribs on the hub to increase the strength of the blade, but most of the existing improvement methods achieve the purpose of increasing the strength of the blade by increasing the number of ribs or increasing the thickness of the ribs , which not only increases the cost of production materials, but also increases the weight of the axial flow fan blade, which is not conducive to reducing the power of the motor.

Utility model content

In view of this, the utility model aims to provide a wheel hub, an axial fan blade and an air conditioner to solve the problems of increasing the production cost and difficulty in reducing the power of the motor by increasing the strength of the fan blade by increasing the weight of the ribs.

In order to achieve the above object, the technical solution of the utility model is achieved in that:

A wheel hub, comprising a hub body, a central shaft, a first rib and a second rib; the central shaft is located in the hub and fixedly connected to the base of the hub; the two ends of the first rib are respectively Connecting the central shaft and the outer ring of the hub; the second reinforcing rib is arranged on the side of the first reinforcing rib, and the first reinforcing rib and the second reinforcing rib are distributed in a bifurcated shape, so The second reinforcing rib is connected with the first reinforcing rib and the hub body.

Further, the distance between the connection between the first rib and the second rib is d from the central axis, and the value range of d is: 0.6L≤d<L, where L is the Describe the length of the first rib.

Further, a bulge is provided at the junction of the first reinforcing rib and the second reinforcing rib, and the bulging is a structure formed by protruding from the first reinforcing rib to both sides.

Further, at least one second reinforcing rib is provided on the side of the first reinforcing rib.

Further, the angle θ between the first rib and the second rib ranges from 40° to 60°.

Further, the outer ring of the hub includes a first fixing portion and a second fixing portion, the first fixing portion and the second fixing portion are arranged alternately in height, and the first fixing portion is higher than the second fixing portion department.

Further, the first fixing portion is connected to the first reinforcing rib and the second reinforcing rib.

Further, a rounded corner is provided between the first reinforcing rib and the second reinforcing rib, and the rounded corner is located outside the connection between the first reinforcing rib and the second reinforcing rib.

Compared with the prior art, the hub described in the utility model has the following advantages:

(1) In the wheel hub described in the present invention, the second rib is arranged on the side of the first rib to reduce the maximum equivalent stress on the hub under the same speed condition, thereby effectively improving the strength of the hub.

(2) In the hub described in the present utility model, the first reinforcing rib is provided to extend from the central shaft to the outer ring of the hub, and extend to the root of the arc surface of the corresponding blade, thereby effectively improving the strength of the hub.

(3) In the wheel hub described in the utility model, a bulge is provided at the junction of the first rib and the second rib to strengthen the connection strength between the first rib and the second rib, effectively improving the overall strength of the hub.

(4) The wheel hub described in the utility model is provided with a first fixing part and a second fixing part on the wheel hub, wherein the first fixing part is connected with the first reinforcing rib and the second reinforcing rib, which can effectively improve the fixing strength; the first The arrangement of the fixing part and the second fixing part also enables the integration of multiple axial-flow fan blades, improves space utilization, facilitates transportation, and saves transportation costs.

(5) In the wheel hub described in the utility model, rounded corners are provided on the outside of the connection between the first rib and the second rib to reduce stress concentration, thereby improving the strength of the hub.

Another object of the present utility model is to provide an axial fan blade, which includes the hub described in any one of the above items; and also includes blades, and the blades are arranged along the circumferential direction of the hub.

Further, the blade includes a circular arc surface, and the first reinforcing rib extends outward from the central axis and points to the blade root of the circular arc surface.

The advantages of the axial-flow fan blade and the hub mentioned above are the same as those of the prior art, and will not be repeated here.

Another object of the present utility model is to provide an air conditioner, comprising the hub or the axial flow blade described in any one of the above.

The air conditioner has the same advantages as the above-mentioned axial-flow fan blades compared with the prior art, and will not be repeated here.

Description of drawings

The accompanying drawings constituting a part of the utility model are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute improper limitations to the utility model. In the attached picture:

Fig. 1 is the structural representation of the wheel hub described in the utility model;

Fig. 2 is a structural schematic diagram of the axial-flow fan described in the utility model;

Fig. 3 is a schematic structural view of the hub body described in the present invention;

Figure 4 is a schematic diagram of the integrated installation of the two hubs described in the present invention;

Fig. 5 is a structural schematic diagram of the connection between the central axis and the reinforcing rib and the bulge according to the utility model;

Fig. 6 is a schematic structural view of the central axis described in the present invention.

Explanation of reference signs:

1-blade, 2-hub body, 3-center shaft, 4-first rib, 5-second rib, 6-bulge, 7-fillet;

11-arc surface, 20-outer ring, 21-first fixing part, 22-second fixing part, 23-base, 31-motor shaft hole, 32-guiding plane.

Detailed ways

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

In the description of the present utility model, it should be noted that the terms and nouns in each embodiment, such as "up", "down", "left", "right", "outside", "inside" and other words indicating orientation, It is just to simplify the description of the positional relationship based on the drawings in the specification, and it does not mean that the components and devices referred to must be operated in accordance with the specific orientation and limited operations, methods, and structures in the specification. limit.

In addition, the terms "first" and "second" mentioned in the embodiments of the present utility model are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the indicated technical features. quantity. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features.

In addition, the "fixed connection" in the present invention refers to a connection without relative displacement after connection, which can be a connection between multiple components or a connection between parts that make up a single component.

The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

Example 1

This embodiment provides a wheel hub. As shown in FIG. 1 , the wheel hub includes a hub body 2 , a central shaft 3 , a first rib 4 and a second rib 5 .

Specifically, the hub body 2 includes an outer ring 20 and a base 23, the central shaft 3 is arranged in the hub and fixedly connected with the base 23 of the hub body 2, and the central shaft 3 is fixedly connected to a plurality of first ribs 4, in this embodiment The three first ribs 4 are evenly distributed on the side of the central axis 3 at an angle of 120°. It should be noted that the number of the first ribs 4 is three and the three first ribs 4 are 120° The angle of ° is distributed on the outer surface of the central axis 3, and the number of the first ribs 4 is the same as the number of the blades 1 at the corresponding positions, so that the first ribs 4 can effectively support the overall hub; this solution is a A preferred setting scheme, besides setting three first reinforcing ribs 4 , can also be other suitable schemes, and the number of the first reinforcing ribs 4 is not limited to only three. As shown in FIG. 2 , the setting of the first rib 4 should be determined according to the setting of the blades 1 , and the number and setting positions of the blades 1 should be selected according to the actual situation. In this embodiment, the number of blades 1 is set to three, and the number of corresponding first ribs 4 is also three, and one of the first ribs 4 will be used for illustration in the following; the three blades 1 are 120° The angle is set along the circumference of the hub, and the blade root of the blade 1 is fixedly connected with the outer wall of the hub. Correspondingly, the positions of the three first reinforcing ribs 4 correspond to the blades 1 one by one, and the first reinforcing ribs 4 go from the central axis 3 to the hub. The main body 2 extends to the arc surface 11 of the corresponding blade 1, specifically to the blade root of the arc surface 11. Since the arc surface 11 is the most stressed part of the blade 1, the equivalent stress can be effectively reduced , thereby improving the strength of the axial flow fan blade. In this embodiment, a second reinforcing rib 5 is provided on both sides of each first reinforcing rib 4, preferably, the first reinforcing rib 4 and the second reinforcing rib 5 are integrally formed, and the second reinforcing rib 5 It is distributed in a bifurcated shape with the first reinforcing rib 4. Preferably, every two second reinforcing ribs 5 are symmetrically distributed on both sides of each first reinforcing rib 4, and are fixedly connected with the hub body 2. It should be noted that The number of second reinforcing ribs 5 arranged on the side of each first reinforcing rib 4 is not limited to the above two, but at least one, for example, it can be set as four second reinforcing ribs symmetrically distributed on both sides of the first reinforcing rib 4 There are two second reinforcing ribs 5 on each side; in this embodiment, two second reinforcing ribs 5 symmetrically distributed on both sides of each first reinforcing rib 4 can save production materials and not significantly increase the weight of the wheel hub. The strength of the axial flow fan blade is effectively improved on the basis of the above; the connection part between the outer ring 20 and the first rib 4 is called the connection part, and the side of the first rib 4 refers to the connection between the first rib 4 and the base 23 A plane perpendicular to the connecting portion of the first rib 4 and the outer ring 20 . As shown in FIG. 5, the angle θ between the first rib 4 and the second rib 5 is preferably in the range of 40° to 60°. It should be noted that the angle θ here refers to the first rib 4 and the second rib. The relative angles of the two reinforcement ribs 5 in the respective length directions; the length range of the first reinforcement rib 4 is 30-38mm, preferably 34mm; the width range is 2-4mm, preferably 3mm; the height range is 25-35mm, preferably is 28mm. The length range of the second rib 5 is 13-22 mm, the specific value depends on the angle θ between the first rib 4 and the second rib 5, preferably 16 mm; the width range is 2-4 mm, preferably 2.5 mm; The height ranges from 25 to 35 mm, consistent with the height of the first rib 4, preferably 28 mm. More specifically, the first reinforcing rib 4 extends from the center shaft 3 to the hub body 2 and is fixedly connected with the hub body 2 to form an integral body, and the first reinforcing rib 4 forms the above-mentioned second reinforcing rib 5 on the side of the part close to the outer ring 20 , and then extend to the arc surface 11 of the blade 1, and the position where the second reinforcing rib 5 is formed is the junction of the first reinforcing rib 4 and the second reinforcing rib 5; with the first reinforcing rib 4 connecting the central axis 3 as a starting point, One end connecting the outer ring 20 is the end point, and the length from the starting point to the end point is L, where L is the length of the first rib 4, and the distance d between the connection between the first rib 4 and the second rib 5 and the central axis 3 For: 0.6L-L (excluding L). The extension direction of the first rib 4 points to the root of the arc surface 11 of the blade 1, that is, the first rib 4 extends outward from the central axis 3 and is arranged opposite to the arc surface 11 of the blade 1, wherein the arc The surface 11 is where the blade 1 receives the windward force. During the rotation of the axial flow blade, the circular arc surface 11 bears the greatest impact of external force, and the first rib 4 extends to the arc surface 11 of the blade 1 and the second rib provided. 5. It can reduce the maximum equivalent stress borne by the axial-flow fan blade under the same speed condition, and effectively improve the strength of the axial-flow fan blade.

In this embodiment, the first reinforcing rib 4 is set to extend from the central shaft 3 to the hub body 2, and extends to the root of the arc surface 11 of the blade 1 at the corresponding position, thereby effectively improving the strength of the hub and the axial flow blade; at the same time The second reinforcing rib 5 is arranged on the side of the first reinforcing rib 4 to form a bifurcated shape to reduce the maximum equivalent stress on the axial flow blade under the same speed condition, thereby effectively improving the strength of the hub and the axial flow blade.

Example 2

In this embodiment, on the basis of the above-mentioned embodiment 2, as shown in FIG. 1 and FIG. 5 , a bulge 6 is provided at the junction of the first rib 4 and the second rib 5, and the bulge 6 is the first rib 4 to the two sides. The structure formed by side protrusions, that is, the width of the bulge 6 is greater than the width of the first rib 4 . Preferably, the protruding structure at the connection between the first reinforcing rib 4 and the second reinforcing rib 5 can be configured as a protrusion at the same time to increase the strength of the connection.

In this embodiment, the connection strength between the first rib 4 and the second rib 5 and the connection between the first rib 4 and the second rib are strengthened by setting a bulge 6 at the junction of the first rib 4 and the second rib 5. The connection strength between the rib 5 and the hub body 2 effectively improves the overall strength of the hub and the axial flow blade.

Example 3

In this embodiment, on the basis of the above-mentioned embodiment 2, as shown in FIG. 1 and FIG. Fixed part 22. At the upper end of the hub body 2, the first fixing part 21 is higher than the second fixing part 22, and the first fixing part 21 with a relatively high horizontal plane is connected with the first reinforcing rib 4 and the second reinforcing rib 5, ensuring that the hub body 2 and the reinforcing rib The fixed area can effectively improve the fixing strength. It should be noted that the connection between the first fixing part 21 with a relatively high horizontal plane and the first reinforcing rib 4 and the second reinforcing rib 5 is only a preferred solution, which is of great help in improving the fixing strength of the axial flow fan blade. In addition to the preferred solution, It is also possible that the second fixing portion 22 with a relatively low horizontal plane is connected to the first reinforcing rib 4 and the second reinforcing rib 5 . At the upper end of the hub body 2, the first fixing part 21 is higher than the horizontal plane where the second fixing part 22 is located, while at the lower end of the hub body 2, the first fixing part 21 between two adjacent second fixing parts 22 will form a depression structure, the concave structure is the same as the concave structure of the second fixing part 22 on the upper end of the hub body 2, the height of the first fixing part 21 and the second fixing part 22 in the vertical direction are the same, only the first fixing part 21 and the second The fixed part 22 is set as a staggered structure, because in the actual production and transportation process, multiple axial flow fan blades need to be integrated and transported, as shown in Figure 4, taking two hub bodies 2 as an example, the hub body 2 located above The second fixing part 22 of the hub body 2 is matched and fixed with the second fixing part 22 of the hub body 2 located below, and the first fixing part 21 of the hub body 2 located above is matched and fixed with the first fixing part 21 of the hub body 2 located below, In this way, the integration process of two axial-flow fan blades is realized, and by analogy, multiple axial-flow fan blades can be integrated and transported according to the above-mentioned integrated installation process of the two axial-flow fan blades.

In this embodiment, by setting the first fixing part 21 and the second fixing part 22 on the hub body 2, wherein the first fixing part 21 is connected with the first reinforcing rib 4 and the second reinforcing rib 5, it is ensured that the hub body 2 and the The area connected by the ribs can effectively improve the fixing strength; the staggered arrangement of the first fixing part 21 and the second fixing part 22 also enables the integration of multiple axial flow fan blades, improves space utilization, facilitates transportation, and saves transportation cost.

Example 4

In this embodiment, on the basis of the above-mentioned embodiment 3, as shown in FIG. 5, a fillet 7 is set between the first rib 4 and the second rib 5, and the fillet 7 is located between the first rib 4 and the second rib. The radius of the fillet 7 on the outside of the joint of the rib 5 is within the range of 4 to 7 mm. Setting the fillet 7 can reduce the stress concentration phenomenon of the axial flow fan and prevent the axial flow fan from being damaged due to stress concentration in a long-term working environment. damage, thereby effectively improving the strength of the axial flow fan blade.

In this embodiment, the phenomenon of stress concentration is reduced by providing rounded corners 7 between the first rib 4 and the second rib 5 , thereby improving the strength of the axial flow blade.

Example 5

This embodiment is based on the above-mentioned embodiment 4, as shown in FIG. 5 and FIG. 6 , the central shaft 3 includes a motor shaft hole 31 and a guide plane 32 . The motor shaft hole 31 is detachably connected with the motor, and the motor drives the axial fan blade to rotate through the motor shaft hole 31; the guide plane 32 is located on the side of the central shaft 3, and when the axial fan blade is installed, the guide plane 32 is opposite to the direction of the axial fan blade. The installation angle plays a limiting role, and at the same time, after the axial-flow fan blade is installed, the guide plane 32 can also play a position-limiting effect on the axial-flow fan blade.

In this embodiment, the motor shaft hole 31 on the central shaft 3 is connected with the motor to realize the rotation of the hub and the axial flow fan blades, and the smooth installation and effective fixing of the hub and the flow fan blades are realized through the guide plane 32 on the central shaft 3 .

Example 6

This embodiment provides an axial fan blade, as shown in FIG. 2 , which includes the hub of any one of the above embodiments, and also includes blades 1 , and the blades 1 are arranged along the circumference of the hub. The advantages of the axial-flow fan blade and the above-mentioned hub over the prior art are the same, and will not be repeated here.

Example 7

This embodiment provides an air conditioner, including the axial-flow fan blade of the sixth embodiment above. The air-conditioner has the same advantages as the axial-flow fan blades above compared with the prior art, and will not be repeated here.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (11)

1. a kind of wheel hub, which is characterized in that including hub body (2), axis (3), the first reinforcing rib (4) and the second reinforcing rib (5)；

The axis (3) is located in the wheel hub and is fixedly connected with the pedestal of the wheel hub (23)；

The both ends of first reinforcing rib (4) are separately connected the outer ring (20) of the axis (3) and the wheel hub；

Second reinforcing rib (5) setting is in the side of first reinforcing rib (4), first reinforcing rib (4) and described the Two reinforcing ribs (5) are distributed in forked, second reinforcing rib (5) and first reinforcing rib (4) and the hub body (2) Connection.

2. wheel hub according to claim 1, which is characterized in that first reinforcing rib (4) and second reinforcing rib (5) Distance of the junction apart from the axis (3) be d, the value range of the d are as follows: 0.6L≤d < L, wherein L is described the The length of one reinforcing rib (4).

3. wheel hub according to claim 1, which is characterized in that first reinforcing rib (4) and second reinforcing rib (5) Junction bulge (6) are set, the bulge (6) is first reinforcing rib (4) to the prominent structure formed in two sides.

4. wheel hub according to claim 1, which is characterized in that the side of first reinforcing rib (4) is provided at least one A second reinforcing rib (5).

5. wheel hub according to claim 4, which is characterized in that first reinforcing rib (4) and second reinforcing rib (5) Between angle, θ range are as follows: 40~60 °.

6. wheel hub according to claim 1, which is characterized in that the outer ring (20) of the wheel hub includes the first fixed part (21) With the second fixed part (22), first fixed part (21) and second fixed part (22) are just staggered, and described first Fixed part (21) is higher than second fixed part (22).

7. wheel hub according to claim 6, which is characterized in that first fixed part (21) and first reinforcing rib (4) and second reinforcing rib (5) connects.

8. wheel hub according to claim 1-5, which is characterized in that first reinforcing rib (4) and described second It is provided between reinforcing rib (5) fillet (7), the fillet (7) is located at first reinforcing rib (4) and second reinforcing rib (5) outside of junction.

9. a kind of axial-flow leaf, which is characterized in that including the described in any item wheel hubs of the claims 1-8；It further include blade (1), circumferential direction setting of the blade (1) along the wheel hub.

10. axial-flow leaf according to claim 9, which is characterized in that the blade (1) includes arc surface (11), described First reinforcing rib (4) extends outwardly at the axis (3) and is directed toward at the blade root of the arc surface (11).

11. a kind of air conditioner, which is characterized in that including the described in any item wheel hubs of the claims 1-8, or including above-mentioned power Benefit requires the described in any item axial-flow leafs of 9-10.