CN216199941U

CN216199941U - Flange shaft with spline structure

Info

Publication number: CN216199941U
Application number: CN202122495944.9U
Authority: CN
Inventors: 袁军; 刘金芳
Original assignee: Jiangsu Maibona Transmission Technology Co ltd
Current assignee: Jiangsu Maibona Transmission Technology Co ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-04-05
Anticipated expiration: 2031-10-18

Abstract

The utility model discloses a flange shaft with a spline structure, which comprises a flange, wherein a spline is arranged at the center of the flange, positioning mounting holes are formed in four corners of the flange, the spline is an internal spline, and the reference diameter of the front end of the spline is smaller than the small diameter of the spline. The width of the reference diameter does not exceed 1/5 of the spline width. The flange is in an asymmetric structure. When the flange is installed and used, the concentricity matched with the flange is obtained by positioning the reference diameter of the matching part, and then the torque is transmitted by the tooth surface of the matching part and the spline tooth surface of the flange plate, so that the coaxiality is better than that of a mode of transmitting the torque by the spline tooth surface alone, the torque transmission performance is stable, and the problem of torque transmission failure caused by unstable coaxiality between the spline flange and the matching part is solved. In addition, due to the adoption of the flange with the non-circular symmetrical structure, the material is saved, and the light-weight requirement is met.

Description

Flange shaft with spline structure

Technical Field

The utility model relates to a flange, in particular to a flange shaft with a spline structure.

Background

The flange is a connecting piece that extensively was applied to mechanical trade, and according to the function difference, the flange form is various, and wherein spline structure's flange is more common, is applied to usually in the higher mechanical transmission sub-assembly of cooperation precision requirement, but this kind of spline structure's flange often can lead to flange and the axiality of mating member unstable because full flank and mating member cooperation, and full flank contact for spline and mating member cooperation effect are poor, probably produce the risk that the moment of torsion transmission became invalid.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problems in the prior art, and provides a flange shaft with a spline structure.

The technical problem of the utility model is mainly solved by the following technical scheme:

the flange shaft with the spline structure is characterized by comprising a flange, wherein a spline is arranged in the center of the flange, positioning mounting holes are formed in four corners of the flange, the spline is an internal spline, and the reference diameter of the front end of the spline is smaller than the small diameter of the spline.

In a preferred embodiment of the present invention, the width of the reference diameter does not exceed 1/5 of the spline width.

As a preferred embodiment of the utility model, the flange is in an asymmetric structure.

The flange shaft with the spline structure has the following advantages: when the flange is installed and used, the concentricity matched with the flange is obtained by positioning the reference diameter of the matching part, and then the torque is transmitted by the tooth surface of the matching part and the spline tooth surface of the flange plate, so that the coaxiality is better than that of a mode of transmitting the torque by the spline tooth surface alone, the torque transmission performance is stable, and the problem of torque transmission failure caused by unstable coaxiality between the spline flange and the matching part is solved. In addition, due to the adoption of the flange with the non-circular symmetrical structure, the material is saved, the light weight requirement is met, the mounting holes with the symmetrical and uniformly distributed structures are stable in fastening torque, and the assembly effect is good.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a flange shaft with a spline structure according to the present invention;

fig. 2 is a schematic view of the flange shaft of fig. 1, from another perspective.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention will be more clearly and clearly defined.

As shown in fig. 1 to 2, the flange shaft 1 with a spline structure includes a flange 2, a spline 3 is disposed at the center of the flange 2, positioning and mounting holes 5-1 are disposed at four corners of the flange 2, the spline 3 is an internal spline, and a reference diameter D of a front end of the spline 3 is smaller than a small diameter D of the spline 3.

The width K of the reference diameter d does not exceed 1/5 of the width L of the spline 3.

The flange 2 is of an asymmetric construction.

When the flange is installed and used, the concentricity matched with the flange is obtained by positioning the reference diameter of the matching part, and then the torque is transmitted by the tooth surface of the matching part and the spline tooth surface of the flange plate, so that the coaxiality is better than that of a mode of transmitting the torque by the spline tooth surface alone, the torque transmission performance is stable, and the problem of torque transmission failure caused by unstable coaxiality between the spline flange and the matching part is solved. In addition, due to the adoption of the flange with the non-circular symmetrical structure, the material is saved, the light weight requirement is met, the mounting holes with the symmetrical and uniformly distributed structures are stable in fastening torque, and the assembly effect is good.

Without being limited thereto, any changes or substitutions that are not thought of through the inventive work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims

1. The flange shaft with the spline structure is characterized in that the flange shaft (1) with the spline structure comprises a flange (2), a spline (3) is arranged at the center of the flange (2), a positioning mounting hole (5-1) is formed in each of four corners of the flange (2), the spline (3) is an internal spline, and the reference diameter (D) of the front end of the spline (3) is smaller than the small diameter (D) of the spline (3).

2. A splined flanged shaft according to claim 1, wherein the reference diameter (d) has a width (K) not exceeding 1/5 of the width (L) of the splines (3).

3. A splined flange shaft according to claim 1, wherein the flange (2) is asymmetric.