阅读说明：本技术 一种电动两轮车铝轮毂及其制造方法 (Aluminum hub of electric two-wheel vehicle and manufacturing method thereof ) 是由 项兆先 于 2019-10-15 设计创作，主要内容包括：本发明的技术方案是一种电动两轮车铝轮毂及其制造方法,包括有外圈铝质轮辋和内铝质轮辐支架,所述外圈铝质轮辋采用铝管旋压成型,所述内铝质轮辐支架包括有轮辐和内轮毂盘,所述内轮毂盘中心设置有轴安装孔,所述轮辐和内轮毂盘为一体式采用挤压成型或锻压成型,上述外圈铝质轮辋和一体成型的内铝质轮辐支架通过焊接或铆接连接固定成轮毂整体。本发明这种电动两轮车铝轮毂的制造方法节能环保,同时生产效率比原先铸造铝轮毂的效率至少提高5倍以上,同时整体材质均为铝,在后期回收时可以直接熔炉回收再利用,不会造成环境的污染。(The aluminum wheel hub of the electric two-wheel vehicle comprises an outer ring aluminum wheel rim and an inner aluminum wheel spoke support, wherein the outer ring aluminum wheel rim is formed by spinning an aluminum pipe, the inner aluminum wheel spoke support comprises a wheel spoke and an inner wheel hub, a shaft mounting hole is formed in the center of the inner wheel hub, the wheel spoke and the inner wheel hub are integrally formed by extrusion forming or forging forming, and the outer ring aluminum wheel rim and the integrally formed inner aluminum wheel spoke support are connected and fixed into a whole wheel hub through welding or riveting. The manufacturing method of the aluminum hub of the electric two-wheeled vehicle is energy-saving and environment-friendly, the production efficiency is improved by at least 5 times compared with the efficiency of the original cast aluminum hub, and the whole material is aluminum, so that the aluminum hub can be directly recycled by a smelting furnace in the later recycling process, and the environmental pollution is avoided.)

1. The utility model provides an electric two wheeler aluminium wheel hub, including outer lane aluminium matter rim (1) and interior aluminium matter spoke support (2), its characterized in that: the aluminum wheel hub is characterized in that the outer ring aluminum wheel rim (1) is formed by spinning an aluminum pipe, the inner aluminum wheel spoke support (2) comprises wheel spokes (3) and an inner wheel hub (4), a shaft mounting hole (5) is formed in the center of the inner wheel hub (4), the wheel spokes (3) and the inner wheel hub (4) are integrally formed by extrusion forming or forging and pressing, and the outer ring aluminum wheel rim (1) and the integrally formed inner aluminum wheel spoke support (2) are fixedly connected into a whole wheel hub through welding or riveting.

2. The aluminum hub for electric two-wheeled vehicles according to claim 1, wherein: and a brake disc connecting hole (6) is formed in the inner hub disc (4).

3. The aluminum hub for electric two-wheeled vehicles according to claim 1, wherein: and the outer ring aluminum rim (1) is provided with an inflating valve (7).

4. A manufacturing method of an aluminum hub of an electric two-wheel vehicle is characterized in that: comprising an outer aluminum rim (1) and an inner aluminum spoke holder (2) as claimed in claim 1, the outer aluminum rim (1) being manufactured by the following method: firstly, preparing an aluminum pipe with a corresponding outer diameter, and cutting the aluminum pipe into corresponding lengths; fixing the aluminum pipe on a die of spinning equipment through a clamp to rotate at a high speed along with the die, wherein the shape of the outer surface of the die is matched with the shape of the inner surface of a rim; thirdly, a spinning wheel on the spinning equipment is contacted with the outer surface of the aluminum tube and moves along the axial direction of the aluminum tube according to a set path, the outer surface of the aluminum tube forms the outline shape of the rim due to the fluidity of the aluminum material, the inner surface of the aluminum tube is tightly attached to the outer surface of the die to form the outline shape of the inner surface of the rim, and the aluminum tube forms an outer ring aluminum rim (1) after spinning; the manufacturing method of the inner aluminum spoke support (2) comprises the following steps: firstly, selecting an aluminum ingot with a corresponding volume to be placed in a mold, wherein the shape of a cavity of the mold corresponds to the shape of a spoke support; secondly, directly extruding the inner aluminum spoke support (2) by using extrusion equipment or directly forging and extruding the aluminum spoke support (2) by using forging equipment; and finally, welding the inner aluminum spoke support (2) in the outer aluminum rim (1) in a welding mode to form a final product.

5. The method of manufacturing an aluminum hub for an electric motorcycle according to claim 4, wherein: in the manufacturing method of the outer ring aluminum rim (1), the aluminum pipe is a circular winding piece formed by rolling and molding an aluminum plate with a certain length by a rolling device, and the head and the tail of the winding piece are welded to form the aluminum pipe.

Technical Field

The invention relates to the field of electric vehicle parts, in particular to an aluminum hub of an electric two-wheel vehicle and a manufacturing method thereof.

Background

Along with the green trip that the country advocated all the time, push away energy-concerving and environment-protective theory, the light environmental protection characteristics of electric motor car receive people's favor, therefore the electric motor car has become the most common vehicle in people's life at present. The hub is an important part for supporting the tire and connecting the frame, and the design of the hub is very important for the whole electric vehicle.

The conventional electric vehicle wheel hub basically has three structures. The first is that the whole aluminum of the wheel hub is cast and integrally formed, the aluminum is melted at high temperature in the manufacturing process, the density of the cast aluminum wheel hub is not high, air holes and tire air leakage are easy to occur, and the problems of waste gas, environmental pollution and low production efficiency exist in the manufacturing process. The second is that the whole iron material of wheel hub makes, and its wheel hub that processes needs to carry out anti oxidation treatment such as surface pickling, outer spraying paint, can cause the influence to the environment among the spraying paint process, environmental protection inadequately. The third is that the wheel hub is composed of two parts, the iron outer ring and the glass fiber reinforced plastic inner support frame are fixedly connected to form a wheel hub structure, the iron outer ring and the glass fiber reinforced plastic inner support frame in the mode need to be painted, and the inner support frame cannot be recycled because the inner support frame is directly scrapped when not used in the later period, so that the material waste is caused, and the wheel hub structure is not environment-friendly.

If the whole aluminium material that is of wheel hub, can intensity be big, and the steady quality is reliable, again can recycle, and not only environmental protection can improve production efficiency again, is the problem that needs to solve at present urgently.

Disclosure of Invention

Aiming at the problems, the invention aims to provide an aluminum hub of an electric two-wheel vehicle and a manufacturing method thereof, wherein the aluminum hub is environment-friendly and reliable in material and manufacturing method, novel in structure and high in production efficiency.

The technical scheme includes that the aluminum hub of the electric two-wheel vehicle comprises an outer ring aluminum rim and an inner aluminum spoke support, the outer ring aluminum rim is formed by aluminum pipe spinning, the inner aluminum spoke support comprises spokes and an inner wheel hub, a shaft mounting hole is formed in the center of the inner wheel hub, the spokes and the inner wheel hub are integrally formed by extrusion forming or forging forming, and the outer ring aluminum rim and the integrally formed inner aluminum spoke support are connected and fixed into a whole hub through welding or riveting.

Preferably, the inner hub plate is provided with a brake disc connecting hole.

Preferably, the outer ring aluminum rim is provided with a valve.

The manufacturing method of the aluminum hub of the electric two-wheeled vehicle comprises the following steps: firstly, preparing an aluminum pipe with a corresponding outer diameter, and cutting the aluminum pipe into corresponding lengths; fixing the aluminum pipe on a die of spinning equipment through a clamp to rotate at a high speed along with the die, wherein the shape of the outer surface of the die is matched with the shape of the inner surface of a rim; thirdly, a spinning wheel on the spinning equipment is contacted with the outer surface of the aluminum tube and moves along the axial direction of the aluminum tube according to a set path, the outer surface of the aluminum tube forms the outline shape of the rim due to the fluidity of the aluminum material, the inner surface of the aluminum tube is tightly attached to the outer surface of the die to form the outline shape of the inner surface of the rim, and the aluminum tube forms an outer ring aluminum rim after spinning; the manufacturing method of the inner aluminum spoke support comprises the following steps: firstly, selecting an aluminum ingot with a corresponding volume to be placed in a mold, wherein the shape of a cavity of the mold corresponds to the shape of a spoke support; secondly, directly extruding the inner aluminum spoke support by using extrusion equipment or directly forging and pressing the inner aluminum spoke support by using forging and pressing equipment to obtain the aluminum spoke support; and finally, connecting the inner aluminum spoke support in the outer aluminum rim in a welding or riveting mode to form a final product.

Preferably, in the manufacturing method of the outer ring aluminum rim, the aluminum pipe is a circular winding piece formed by winding and molding an aluminum plate with a certain length by a winding device, and the winding piece is welded from head to tail to form the aluminum pipe.

The manufacturing method of the aluminum hub of the electric two-wheeled vehicle is energy-saving and environment-friendly, the production efficiency is improved by at least 5 times compared with the efficiency of the original cast aluminum hub, and the whole material is aluminum, so that the aluminum hub can be directly recycled by a smelting furnace in the later recycling process, and the environmental pollution is avoided.

Drawings

FIG. 1 is a schematic structural view of a product of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;

FIG. 3 is a front view of the present invention;

FIG. 4 is a cross-sectional view taken along A-A of FIG. 3;

FIG. 5 is an exploded view of the present invention;

FIG. 6 is a schematic view of the process of spinning an aluminum tube into an outer aluminum rim;

FIG. 7 is a schematic view showing a process of rolling and welding an aluminum plate into an aluminum tube and spinning the aluminum tube into an outer aluminum rim;

wherein: 1-outer ring aluminum rim; 2-inner aluminum spoke support; 3-spokes; 4-inner hub plate; 5-shaft mounting holes; 6-connecting holes of brake disc; 7-valve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 5, the invention provides an aluminum wheel hub of an electric two-wheeled vehicle, which comprises an outer ring aluminum wheel rim 1 and an inner aluminum wheel spoke support 2, wherein the outer ring aluminum wheel rim 1 is formed by aluminum pipe spinning, the inner aluminum wheel spoke support 2 comprises a wheel spoke 3 and an inner wheel hub 4, a shaft mounting hole 5 is arranged in the center of the inner wheel hub 4, the wheel spoke 3 and the inner wheel hub 4 are integrally formed by extrusion molding or forging molding, and the outer ring aluminum wheel rim 1 and the integrally formed inner aluminum wheel spoke support 2 are connected and fixed into a whole wheel hub by welding or riveting.

Preferably, the inner hub plate 4 is provided with a brake disc connecting hole 6.

Preferably, the outer ring aluminum rim 1 is provided with a valve 7.

As shown in fig. 1 to 7, the method for manufacturing the aluminum hub of the electric two-wheeled vehicle generally comprises three parts, wherein the first part is used for manufacturing the outer-ring aluminum rim 1, the second part is used for manufacturing the inner-aluminum spoke support 2, and the third part is used for welding or riveting the outer-ring aluminum rim 1 and the inner-aluminum spoke support 2 together.

The manufacturing method of the outer ring aluminum rim 1 comprises the following steps: firstly, preparing an aluminum pipe with a corresponding outer diameter, and cutting the aluminum pipe into corresponding lengths; fixing the aluminum pipe on a die of spinning equipment through a clamp to rotate at a high speed along with the die, wherein the shape of the outer surface of the die is matched with the shape of the inner surface of a rim; and thirdly, a spinning wheel on the spinning equipment is contacted with the outer surface of the aluminum tube and moves along the axial direction of the aluminum tube according to a set path, the outer surface of the aluminum tube forms the outline shape of the rim due to the fluidity of the aluminum material, the inner surface of the aluminum tube is tightly attached to the outer surface of the die to form the outline shape of the inner surface of the rim, and the aluminum tube forms the outer-ring aluminum rim 1 after being spun.

The manufacturing method of the inner aluminum spoke support 2 comprises the following steps: firstly, selecting an aluminum ingot with a corresponding volume to be placed in a mold, wherein the shape of a cavity of the mold corresponds to the shape of a spoke support; and secondly, directly extruding the inner aluminum spoke support 2 by using extrusion equipment or directly forging and pressing the aluminum spoke support 2 by using forging and pressing equipment.

And finally, connecting the inner aluminum spoke support 2 into the outer aluminum rim 1 in a welding or riveting mode to form the final aluminum hub product of the electric two-wheel vehicle.

Preferably, as shown in fig. 7, in the manufacturing method of the outer-ring aluminum rim 1, the aluminum pipe is a length of aluminum plate which is formed into a circular winding piece by winding and shaping through a rolling device, and the winding piece is welded end to form the aluminum pipe. The winding of the aluminum sheet into the aluminum pipe can further reduce the cost as compared with the direct manufacturing of the aluminum pipe.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and the aluminum hub of the present invention is also applicable to an electric tricycle, and any simple modification, equivalent change or modification made to the above embodiments according to the technical principle of the present invention still falls within the scope of the technical solution of the present invention.