A hub support positioning structure

Abstract

The application discloses a hub support positioning structure, which comprises a support steel pipe, an outer ring boss fixedly connected to the top of the support steel pipe, an outer ring fixedly connected to the outer side of the outer ring boss, a hub inner ring fixedly connected to the bottom of the support steel pipe, an inner hole arranged in the center of the outer ring boss, and a blade handle in contact with the end face of the inner hole after passing through the outer ring boss, the support steel pipe and the hub inner ring. The application can improve the defects of the prior art, accurately position and install the blade on the hub, and strengthen the hub inner ring and outer ring.

Description

Technical Field

[0001] This invention relates to a tooling, and more particularly to a propeller hub support and positioning structure. Background Technology

[0002] A wind tunnel is a device used for aerodynamic experiments, and the rotor system provides the power for airflow circulation within it. The fan is a crucial component of this rotor system. The fan consists of 16 blades and a hub, and ensuring that each blade is accurately positioned and mounted on the hub during installation has become a pressing technical challenge in this field. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a propeller hub support and positioning structure that can overcome the shortcomings of the prior art, enable the propeller blade to be accurately positioned and installed on the propeller hub, and strengthen the inner and outer rings of the propeller hub.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows.

[0005] A propeller hub support and positioning structure includes a support steel pipe, an outer ring boss fixedly connected to the top of the support steel pipe, an outer ring of the propeller hub fixedly connected to the outer side of the outer ring boss, and a bottom of the support steel pipe fixedly connected to the inner ring of the propeller hub. An inner hole is provided at the center of the outer ring boss, and the blade step shaft length blade shank passes through the outer ring boss, the support steel pipe and the inner ring of the propeller hub and contacts the end face of the inner hole.

[0006] As a preferred option, the supporting steel pipe is provided with two strip-shaped through holes.

[0007] Preferably, the length-to-width ratio of the strip-shaped through hole is 3:1, and the ratio of the distance between two strip-shaped through holes to the length of the strip-shaped through hole is 11:15.

[0008] Preferably, a stop is provided on the outer side of the top of the outer ring boss, and the outer ring boss and the outer ring of the propeller hub are welded and fixed at the stop.

[0009] Preferably, the top of the inner hole is provided with a beveled portion.

[0010] Preferably, the ratio of the outer diameter to the height of the outer ring boss is 50:17, and the ratio of the inner diameter of the outer ring boss to the inner diameter of the inner hole is 85:56.

[0011] The beneficial effects of adopting the above technical solution are as follows: the present invention achieves accurate installation and positioning of the blades on the rotor hub, ensures the installation accuracy requirements of all blades, and simultaneously strengthens the inner and outer rings of the rotor hub. Attached Figure Description

[0012] Figure 1 This is a structural diagram of a specific embodiment of the present invention.

[0013] Figure 2 This is a structural diagram of the supporting steel pipe in a specific embodiment of the present invention.

[0014] Figure 3 This is a structural diagram of the outer ring boss in a specific embodiment of the present invention.

[0015] In the figure: 1. Supporting steel pipe; 2. Outer ring boss; 3. Hub outer ring; 4. Blade step shaft long blade stalk; 5. Hub inner ring; 6. Inner hole; 7. Strip through hole; 8. Stop; 9. Beveled part. Detailed Implementation

[0016] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, welding, and bonding that are mature in the prior art, and will not be described in detail here.

[0017] Reference Figure 1-3 One specific embodiment of the present invention includes a supporting steel pipe 1. An outer ring boss 2 is fixedly connected to the top of the supporting steel pipe 1. A rotor hub outer ring 3 is fixedly connected to the outer side of the outer ring boss 2. The bottom of the supporting steel pipe 1 is fixedly connected to the rotor hub inner ring 5. An inner hole 6 is provided at the center of the outer ring boss 2. The blade step shaft long shank 4 passes through the outer ring boss 2, the supporting steel pipe 1, and the rotor hub inner ring 5, and then contacts the end face of the inner hole 6. Two strip-shaped through holes 7 are provided on the supporting steel pipe 1. The length-to-width ratio of the strip-shaped through holes 7 is 3:1, and the ratio of the distance between the two strip-shaped through holes 7 to the length of the strip-shaped through holes 7 is 11:15. A stop 8 is provided on the outer side of the top of the outer ring boss 2, and the outer ring boss 2 and the rotor hub outer ring 3 are welded and fixed at the stop 8. A beveled portion 9 is provided at the top of the inner hole 6. The ratio of the outer diameter to the height of the outer ring boss 2 is 50:17, and the ratio of the inner diameter of the outer ring boss 2 to the inner diameter of the inner hole 6 is 85:56.

[0018] The assembly method of the present invention is as follows: First, the outer ring boss 2 and the supporting steel pipe 1 are welded together. Then, the outer ring boss 2 is welded to the outer ring 3 of the propeller hub through the stop 8. The other end of the supporting steel pipe 1 is welded to the inner ring 5 of the propeller hub. When installing the propeller blade, the blade step shaft length shank 4 is passed through the outer ring boss 2, the supporting steel pipe 1, and the inner ring 5 of the propeller hub until the step on the blade step shaft length shank 4 is close to the end face of the inner hole 6 of the outer ring boss 2 and installed in place.

[0019] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0020] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A hub support positioning structure, characterized by: The utility model provides a support steel pipe (1), support steel pipe (1) top fixedly connected with outer ring boss (2), the outside fixedly connected with paddle hub outer ring (3) of outer ring boss (2), support steel pipe (1) bottom and paddle hub inner ring (5) fixedly connected, the center of outer ring boss (2) is provided with inner hole (6), after paddle blade step axle long leaf handle (4) passes through outer ring boss (2), support steel pipe (1) and paddle hub inner ring (5), the step on paddle blade step axle long leaf handle (4) is contacted with the end surface of inner hole (6);Two strip through -holes (7) are provided on the support steel pipe (1);The outside of outer ring boss (2) top is provided with the stopper (8), and outer ring boss (2) and paddle hub outer ring (3) are welded and fixed at the stopper (8).

2. The hub support positioning structure according to claim 1, characterized by: The length-width ratio of the strip through-hole (7) is 3:1, and the ratio of the distance between the two strip through-holes (7) to the length of the strip through-hole (7) is 11:

15.

3. A hub support location structure according to claim 1 or 2, characterised in that: The top of the inner hole (6) is provided with a beveled portion (9).

4. The hub support positioning structure according to claim 3, characterized by: The ratio of the outer diameter of the outer ring boss (2) to the height is 50:17, and the ratio of the inner diameter of the outer ring boss (2) to the inner diameter of the inner hole (6) is 85:56.

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