CN214688924U

CN214688924U - Automobile air conditioner hub

Info

Publication number: CN214688924U
Application number: CN202120362360.1U
Authority: CN
Inventors: 陈惠莲
Original assignee: Ningbo Jinxin Powder Metallurgy Co ltd
Current assignee: Ningbo Jinxin Powder Metallurgy Co ltd
Priority date: 2021-02-08
Filing date: 2021-02-08
Publication date: 2021-11-12
Anticipated expiration: 2031-02-08

Abstract

The utility model discloses an automobile air conditioner hub, which comprises a hub body, wherein the hub body consists of a wheel disc and a wheel shaft coaxially and integrally connected with the wheel disc; the wheel disc is provided with a transmission shaft hole which penetrates through the wheel shaft from front to back along the shaft center, a step hole is formed in the wheel shaft in an expanding manner coaxially with the transmission shaft hole, and the inner wall of the step hole is provided with an axially extending spline groove; three assembly holes and three pin holes are machined on the wheel disc in an equal radian mode, the circumferential distance between every two adjacent assembly holes is 120 degrees, and the circumferential distance between every two adjacent pin holes is also 120 degrees. The utility model discloses an overall design, the installation accuracy is high, has the matched stack stable, the processing is easy and long service life's characteristics.

Description

Automobile air conditioner hub

Technical Field

The utility model belongs to the technical field of the automotive unit technique and specifically relates to an use wheel hub on vehicle air conditioning equipment, specifically speaking are vehicle air conditioner wheel hub.

Background

With the development of the Chinese automobile market and the continuous improvement of the living standard of people, the household automobile quickly enters the family of common people. In order to improve the comfort of a family car and ensure a good driving environment in the car, a car air conditioner is usually installed in the car. Since the vehicle air conditioner is a mobile vehicle-mounted air conditioner, the operation condition thereof is much worse than that of the home air conditioner, and the requirements for each component are generally high. The automobile air conditioner hub is an important component on an automobile air conditioner, plays a role in rotation regulation, and can seriously affect the performance and the service life of the whole equipment if the structural design is reasonable and the precision and the strength meet the design requirements.

Disclosure of Invention

The utility model aims to solve the technical problem to the current situation of above-mentioned prior art, and provide a vehicle air conditioner wheel hub who has the matched stack stability, the precision is high, processing is easy to long service life.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

the automobile air conditioner hub comprises a hub body, wherein the hub body consists of a wheel disc and a wheel shaft which is coaxially and integrally connected with the wheel disc; the wheel disc is provided with a transmission shaft hole which penetrates through the wheel shaft from front to back along the shaft center, a step hole is formed in the wheel shaft in an expanding manner coaxially with the transmission shaft hole, and the inner wall of the step hole is provided with an axially extending spline groove; three assembly holes and three pin holes are machined on the wheel disc in an equal radian mode, the circumferential distance between every two adjacent assembly holes is 120 degrees, and the circumferential distance between every two adjacent pin holes is also 120 degrees.

In order to optimize the technical scheme, the specific measures adopted further comprise:

the centers of the three assembly holes are all located on the circumference line of a first circumference body which is formed by taking the axis of the wheel disc as the center of a circle and has the radius of 18 millimeters, and the centers of the three pin holes are all located on the circumference line of a second circumference body which is formed by taking the axis of the wheel disc as the center of a circle and has the radius of 16 millimeters.

The three assembly holes and the three pin holes are alternately arranged on the wheel disc, and the circumferential distance between the assembly holes and the clockwise adjacent pin holes is 80 degrees, and the circumferential distance between the assembly holes and the counterclockwise adjacent pin holes is 40 degrees.

An annular boss with a 15-degree conical surface is formed on the front disc surface of the wheel disc around each assembly hole, and guide inclined surfaces are machined in front and rear orifices of the assembly holes.

An annular groove with the depth of 0.25 mm is processed at the root part of the stepped hole, and a transition arc with the radius of 0.5 mm is formed between the transmission shaft hole and the stepped surface of the stepped hole.

The front orifice of the transmission shaft hole is provided with a guide groove in an expanding way, and the guide groove is provided with an annular bottom surface with the width of 0.2 mm.

Compared with the prior art, the wheel hub body of the utility model consists of a wheel disc and a wheel shaft which is coaxially and integrally connected with the wheel disc; the hub body is provided with a transmission shaft hole for the transmission shaft to penetrate and assemble along the shaft center, a step hole is formed in the wheel shaft and is formed in a diameter expanding mode with the transmission shaft hole coaxially, and the inner wall of the step hole is provided with an axially extending spline groove in a processing mode; can cooperate with the spline tooth on the transmission shaft through the spline groove to enable wheel hub body along with the synchronous rotation of transmission shaft.

The utility model discloses an overall design, simple structure, processing are easy to the axiality is high, installation convenient to use.

Drawings

Fig. 1 is a schematic front view of the present invention;

FIG. 2 is a sectional view in the direction C-C of FIG. 1;

FIG. 3 is an enlarged partial schematic view at II in FIG. 2;

FIG. 4 is an enlarged view of a portion of FIG. 2 at I;

fig. 5 is a partially enlarged schematic view of fig. 2 at iii.

Detailed Description

Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

Fig. 1 to 5 are structural schematic diagrams of the present invention.

Wherein the reference numerals are: the wheel hub comprises a first circumferential body Q1, a second circumferential body Q2, a wheel hub body 1, a wheel disc 2, an assembling hole 2a, a pin hole 2b, an annular boss 21, a guide inclined plane 22, a wheel shaft 3, a transmission shaft hole 4, a step hole 5, an annular groove 5a, a spline groove 51, a transition arc 6, a guide groove 7 and an annular bottom surface 71.

As shown in fig. 1 to 5, the utility model discloses a vehicle air conditioner wheel hub, it includes metal material's wheel hub body 1, wheel hub body 1 is by rim plate 2 and the wheel axle 3 that links to each other with this rim plate 2 coaxial an organic whole piece of constituteing. The wheel disc 2 is provided with a transmission shaft hole 4 along the axis from front to back through the wheel shaft 3, and the transmission shaft hole 4 is used for penetrating a transmission shaft so as to drive the wheel hub to rotate by utilizing the transmission shaft. The rear end face of the wheel shaft 3 is coaxial with the transmission shaft hole 4, a stepped hole 5 is formed in the diameter-expanding processing of the transmission shaft hole 4, an axially extending spline groove 51 is processed in the inner wall of the stepped hole 5, and the spline groove 51 is used for being meshed with spline teeth on a transmission shaft. Three pilot holes 2a and three pinhole 2b are processed on the rim plate 2, and three pilot holes 2a is equidirectional distribution on rim plate 2, and the circumference is apart from 120 degrees between two adjacent pilot holes 2 a. The three pin holes 2b are distributed on the wheel disc 2 in an equal radian, and similarly, the circumferential distance between two adjacent pin holes 2b is also 120 degrees.

In the embodiment, the utility model discloses the diameter of rim plate 2 is 47 millimeters, and thickness is 3 millimeters, and the diameter in transmission shaft hole 4 is 8.3 millimeters, and the diameter of shaft 3 is 19.5 millimeters. The centers of the three assembly holes 2a are all located on the circumference of the first circumference body Q1, and the centers of the three pin holes 2b are all located on the circumference of the second circumference body Q2. The first circumferential body Q1 is a circumferential line of a circle having a radius of 18 mm around the axial center of the wheel disc 2, and the second circumferential body Q2 is a circumferential line of a circle having a radius of 16 mm around the axial center of the wheel disc 2. The diameter of the pin hole 2b is 7.5 mm, and the diameter of the fitting hole 2a is 5.1 mm.

In the embodiment, as can be seen from fig. 1, three fitting holes 2a and three pin holes 2b are alternately arranged on the wheel disc 2, and the fitting holes 2a are circumferentially spaced by 80 degrees from the clockwise adjacent pin holes 2b thereof and circumferentially spaced by 40 degrees from the counterclockwise adjacent pin holes 2b thereof.

In the embodiment, as shown in fig. 2 and 3, in order to increase the mechanical strength of the assembly holes 2a, the present invention forms an annular boss 21 with a 15-degree conical surface around each assembly hole 2a on the front disc surface of the wheel disc 2, and the front and rear orifices of the assembly holes 2a are processed with guide slopes 22. The diameter of the bottom of the annular boss 21 is larger than that of the top, and the diameter of the bottom of the annular boss 21 is 11 mm.

In the embodiment, the utility model discloses a root processing of step hole 5 has the degree of depth to be 0.25 millimeter annular groove 5a, and transmission shaft hole 4 is formed with the transition arc 6 that the radius is 0.5 millimeter with the step face in step hole 5 within a definite time. The depth of the step hole 5 of the utility model is 10.5 mm.

In the embodiment, the front orifice of the transmission shaft hole 4 of the utility model is expanded with the guide groove 7, and the guide groove 7 is provided with the annular bottom surface 71 with the width of 0.2 mm.

The utility model discloses a vehicle air conditioner wheel hub is an integral piece by rim plate and shaft constitution, and its installation accuracy is high, and processing is easy to long service life.

While the preferred embodiments of the present invention have been illustrated, various changes and modifications may be made by those skilled in the art without departing from the scope of the present invention.

Claims

1. Vehicle air conditioner wheel hub, including wheel hub body (1), characterized by: the hub body (1) consists of a wheel disc (2) and a wheel shaft (3) which is coaxially and integrally connected with the wheel disc (2); the wheel disc (2) is provided with a transmission shaft hole (4) by penetrating the wheel shaft (3) from front to back along the shaft center, a step hole (5) is formed in the wheel shaft (3) by coaxially expanding with the transmission shaft hole (4), and the inner wall of the step hole (5) is provided with an axially extending spline groove (51); the wheel disc (2) is provided with three assembly holes (2a) and three pin holes (2b) in an equal radian mode, the circumferential distance between two adjacent assembly holes (2a) is 120 degrees, and the circumferential distance between two adjacent pin holes (2b) is also 120 degrees.

2. The air conditioning hub as set forth in claim 1, wherein: the centers of the three assembly holes (2a) are all located on the circumferential line of a first circumferential body (Q1) which is formed by taking the axis of the wheel disc (2) as the center of a circle and has the radius of 18 mm, and the centers of the three pin holes (2b) are all located on the circumferential line of a second circumferential body (Q2) which is formed by taking the axis of the wheel disc (2) as the center of a circle and has the radius of 16 mm.

3. The air conditioning hub as set forth in claim 2, wherein: the three assembly holes (2a) and the three pin holes (2b) are alternately arranged on the wheel disc (2), and the circumferential distance between each assembly hole (2a) and the corresponding pin hole (2b) adjacent to the assembly hole in the clockwise direction is 80 degrees, and the circumferential distance between each assembly hole (2a) and the corresponding pin hole (2b) adjacent to the assembly hole in the anticlockwise direction is 40 degrees.

4. A vehicle air conditioner hub as defined in claim 3 wherein: an annular boss (21) with a 15-degree conical surface is formed on the front disc surface of the wheel disc (2) and surrounds each assembly hole (2a), and guide inclined surfaces (22) are machined in front and rear orifices of the assembly holes (2 a).

5. The air conditioning hub as set forth in claim 4, wherein: the root of step hole (5) process have the degree of depth to be 0.25 millimeters annular groove (5a), the step face of transmission shaft hole (4) and step hole (5) between form the transition arc (6) that the radius is 0.5 millimeters.

6. The air conditioning hub as set forth in claim 5, wherein: a guide groove (7) is formed in the front hole opening of the transmission shaft hole (4) in an expanding mode, and the guide groove (7) is provided with an annular bottom surface (71) with the width of 0.2 mm.