CN221282984U - Matching structure of fan blade and wrapping shaft - Google Patents

Abstract

The utility model discloses a matching structure of a fan blade and a wrapping shaft, which comprises a motor rotor, wherein the inner cavity of the motor rotor is provided with the wrapping shaft in a penetrating way, one end of the wrapping shaft is provided with the fan blade connected with the wrapping shaft, and the connecting part between the wrapping shaft and the middle part of the fan blade is provided with a clamping structure. The utility model has the beneficial effects that: the spline is connected with the fan blade and the wrapping shaft in a clamping way, and the risk of slipping and rotation is avoided for some motors with high rotating speed and high torque, so that the safety coefficient of the motor is obviously improved.

Description

Matching structure of fan blade and wrapping shaft

Technical Field

The utility model relates to the technical field of motors, in particular to a matching structure of a fan blade and a wrapping shaft.

Background

The general tool type motor rotor fan is matched with the wrapping shaft, namely a BMC rib structure is usually formed on the wrapping shaft, and the BMC rib is fixed with an inner hole of the fan in a micro interference manner by adopting a glue manner;

However, as the motor technology is mature, some high-rotation-speed and high-torque motors are produced, and the motor can slip and rotate when the motor is matched with the motor, so that the safety coefficient of the motor can be reduced.

Disclosure of utility model

The utility model aims to provide a matching structure of a fan blade and a wrapping shaft, so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a cooperation structure of fan blade and package axle, includes motor rotor, motor rotor inner chamber runs through and is provided with the package axle, package axle one end is equipped with the fan blade of being connected with it, package axle with fan blade middle part connecting portion is equipped with joint structure.

Further preferably, at least six spline grooves are symmetrically formed in the middle of the fan blade.

Further preferably, the clamping structure comprises a spline which is connected with the middle mounting hole of the fan blade in a clamping manner.

Further preferably, a plurality of symmetrically arranged clamping angles are arranged at the other end of the spline, which is far away from the fan blade, and are connected with the wrapping shaft in a clamping manner.

Further preferably, the angle between each two clamping angles is 60 degrees.

Further preferably, the front end angle of the clamping angles is 30 degrees.

Advantageous effects

According to the matching structure of the fan blade and the wrapping shaft, which is provided by the utility model, the risk of slipping and rotation is avoided for some motors with high rotating speed and high torque aiming at the clamping connection of the spline, the fan blade and the wrapping shaft, and the safety coefficient of the motor is obviously improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the spline structure of the present utility model;

FIG. 3 is a schematic view of angles between spline joint angles according to the present utility model;

FIG. 4 is a schematic view of the front end angle of the spline joint angle of the present utility model;

fig. 5 is a schematic view of a spline groove structure in the middle of a fan blade.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

Examples

As shown in fig. 1-5, a matching structure of a fan blade and a wrapping shaft is characterized in that: the motor comprises a motor rotor 1, wherein an inner cavity of the motor rotor 1 is provided with a wrapping shaft 2 in a penetrating manner, one end of the wrapping shaft 2 is provided with a fan blade connected with the wrapping shaft, and a clamping structure 5 is arranged at the connecting part between the wrapping shaft 2 and the middle part of the fan blade.

In the embodiment, at least six spline grooves 4 are symmetrically formed in the middle of the fan blade, and the fan blade rotates along with the wrapping shaft through matching installation of the spline grooves 4 and the wrapping shaft.

The clamping structure 5 comprises a spline 3 which is connected with the middle mounting hole of the fan blade in a clamping way, and the spline 3 is matched with the wrapping shaft and the fan blade in a fixing clamping way.

The other end of the spline 3, which is far away from the fan blade, is provided with a plurality of symmetrically arranged clamping angles 6 which are connected with the wrapping shaft 2 in a clamping way, and the spline is matched and installed with the wrapping shaft 2 through the plurality of clamping angles 6.

The angle between every two joint angles 6 is 60, and a plurality of joint angles 6 front end angles are 30, and the setting of a plurality of angles avoids the package axle to influence the normal operation of other inside parts of motor because of joint angle 6 height and width when rotating, has avoided skidding and pivoted risk simultaneously.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the summary of the present utility model within the scope of the present utility model.

Claims (6)

1. A kind of blade and cooperation structure of the axle, characterized by that: the motor comprises a motor rotor (1), wherein a wrapping shaft (2) is arranged in an inner cavity of the motor rotor (1) in a penetrating mode, a fan blade connected with the wrapping shaft (2) is arranged at one end of the wrapping shaft, and a clamping structure (5) is arranged at the connecting part between the wrapping shaft (2) and the middle of the fan blade.

2. The blade and axle mating structure of claim 1, wherein: at least six spline grooves (4) are symmetrically formed in the outer side of the middle mounting hole of the fan blade.

3. The blade and axle mating structure of claim 1, wherein: the clamping structure (5) comprises a spline (3) which is connected with the middle mounting hole of the fan blade in a clamping mode.

4. A mating structure of a fan blade and a wrapping shaft according to claim 3, wherein: the other end of the spline (3) far away from the fan blade is provided with a plurality of symmetrically arranged clamping angles (6) which are connected with the wrapping shaft (2) in a clamping way.

5. The blade and axle mating structure of claim 4, wherein: the angle between every two clamping angles (6) is 60 degrees.

6. The blade and axle mating structure of claim 4, wherein: the front end angles of the clamping angles (6) are 30 degrees.