阅读说明：本技术 一种一体式铸态盘毂及其加工方法 (Integrated as-cast disk hub and machining method thereof ) 是由 田世良 于 2020-07-27 设计创作，主要内容包括：本发明提供一种一体式铸态盘毂及其加工方法,主要涉及汽车制动装置领域。一种一体式铸态盘毂,包括轮毂,所述轮毂一侧一体成型设置刹车盘,所述刹车盘底面上呈圆周均匀设置若干散热孔,所述刹车盘侧面开设通风孔。本发明的有益效果在于：本发明能够保证刹车盘的平面度,固轴度,平行度,始终保持刹车盘与刹车片的最大接触面积,降低刹车盘与刹车片的磨损程度,提高其制动性能。且刹车盘与轮毂一体成型的结构可以减少刹车盘的装配重量,并且提高刹车盘使用寿命,是现在普通刹车盘的三倍,连接强度,通风散热性能也得到较大的提高。(The invention provides an integrated as-cast disc hub and a processing method thereof, and mainly relates to the field of automobile braking devices. The utility model provides an integral type as-cast state dish hub, includes wheel hub, wheel hub one side integrated into one piece sets up the brake disc, it evenly sets up a plurality of louvres to be the circumference on the brake disc bottom surface, the ventilation hole is seted up to the brake disc side. The invention has the beneficial effects that: the invention can ensure the flatness, the fixed shaft degree and the parallelism of the brake disc, always keep the maximum contact area between the brake disc and the brake pad, reduce the abrasion degree of the brake disc and the brake pad and improve the braking performance of the brake disc and the brake pad. And the structure of the brake disc and the hub which are integrally formed can reduce the assembly weight of the brake disc, and prolong the service life of the brake disc, which is three times that of the existing common brake disc, and the connection strength, ventilation and heat dissipation performance are also greatly improved.)

1. An integral as-cast disk hub comprising a wheel hub (1), characterized in that: wheel hub (1) one side integrated into one piece sets up brake disc (2), it evenly sets up a plurality of louvres (3) to be the circumference on brake disc (2) bottom surface, ventilation hole (4) are seted up to brake disc (2) side.

2. A one-piece as-cast disk hub as defined in claim 1 wherein: the vent hole (4) is an annular vent hole.

3. A processing method of an integrated as-cast disk hub is characterized by comprising the following processing steps:

a: respectively melting a hub material and a brake disc material into molten iron;

b: pouring molten iron of a hub material into a mold, and pouring molten iron of a brake disc material into the mold, so that the hub material and the brake disc material are cooled and integrated into a whole;

c: and machining, namely machining the sizes of the hub and the brake disc in place.

4. A method for manufacturing an integral as-cast hub as claimed in claim 3, wherein: the material is cast iron.

5. The method for machining the integrated as-cast disk hub as claimed in claim 4, wherein the method comprises the following steps: the brake disc comprises the following materials in percentage by weight:

c: 3.3 to 3.9 percent; si: 1.9 to 2.6 percent; mn: 0.2 to 0.6 percent; p: 0.03-0.1%; s: 0.01 to 0.1 percent; cr: 0.1 to 0.4 percent; mo: 0.1 to 0.5 percent; cu: 0.1 to 0.5 percent; mg: 0.01 to 0.08 percent; sn: 0.01 to 0.08 percent; ti: 0.01 to 0.5 percent; v: 0.01 to 0.08 percent; la: 0.02-0.08%; ce: 0.01 to 0.04 percent; sb: 0.01 to 0.06 percent; the balance of Fe and inevitable impurities.

6. A method for manufacturing an integral as-cast hub as claimed in claim 3, wherein: the mould adopts a shell mould shell core full-wrapping process, and a chill is added at a hot spot position.

7. A method for manufacturing an integral as-cast hub as claimed in claim 3, wherein: and the machining is carried out by adopting a one-time clamping machining mode.

Technical Field

The invention mainly relates to the field of automobile braking devices, in particular to an integrated as-cast disc hub and a processing method thereof.

Background

The brake disc is a device which is arranged on a wheel hub and used for braking a vehicle, and the brake disc and the wheel hub are mainly fixedly connected through bolts at present. Assembly tolerance can't be eliminated, uniformity after the installation of brake disc is hardly guaranteed to bolted connection's mode, and the brake disc phenomenon of beating appears very easily, appears trembling abnormal sound and fracture phenomenon, can't guarantee the biggest area of contact between brake disc and the brake block, and long-time use still can aggravate the wearing and tearing of brake disc and brake block, the life and the brake performance of very big reduction brake disc and brake block.

Disclosure of Invention

In order to solve the defects of the prior art, the invention provides an integrated cast-state disk hub and a processing method thereof, which can ensure the flatness, the shaft fixing degree and the parallelism of a brake disk, always keep the maximum contact area between the brake disk and a brake pad, reduce the abrasion degree of the brake disk and the brake pad and improve the braking performance of the brake disk. And the structure of brake disc and wheel hub integrated into one piece can reduce the assembly weight of brake disc, improves its joint strength with the wheel hub simultaneously, and ventilation and heat dispersion also obtains great improvement.

In order to achieve the purpose, the invention is realized by the following technical scheme:

the utility model provides an integral type as-cast state dish hub, includes wheel hub, wheel hub one side integrated into one piece sets up the brake disc, it evenly sets up a plurality of louvres to be the circumference on the brake disc bottom surface, the ventilation hole is seted up to the brake disc side.

Preferably, the vent hole is an annular vent hole.

A processing method of an integrated as-cast disk hub comprises the following processing steps:

a: respectively melting a hub material and a brake disc material into molten iron;

b: pouring molten iron of a hub material into a mold, and pouring molten iron of a brake disc material into the mold, so that the hub material and the brake disc material are cooled and integrated into a whole;

c: and machining, namely machining the sizes of the hub and the brake disc in place.

Preferably, the brake disc material comprises the following components in percentage by weight:

c: 3.3 to 3.9 percent; si: 1.9 to 2.6 percent; mn: 0.2 to 0.6 percent; p: 0.03-0.1%; s: 0.01 to 0.1 percent; cr: 0.1 to 0.4 percent; mo: 0.1 to 0.5 percent; cu: 0.1 to 0.5 percent; mg: 0.01 to 0.08 percent; sn: 0.01 to 0.08 percent; ti: 0.1 to 0.5 percent; v: 0.01 to 0.08 percent; la: 0.02-0.08%; ce: 0.01 to 0.04 percent; sb: 0.01 to 0.06 percent; the balance of Fe and inevitable impurities.

Preferably, the mould adopts a shell mould shell core full-wrapping process, and a chill is added at a hot spot position of the mould.

Preferably, the machining is carried out in a one-time clamping mode.

Compared with the prior art, the invention has the beneficial effects that:

1. this device adopts the cast mode to realize brake disc and wheel hub integration, the application of bolt when having avoided the assembly, and has avoided connection structure's processing, and whole technology is more simple, and its weight is lower, and braking effect is better. Through this device of integrated into one piece, can guarantee the plane degree of brake disc, solid axiality, the depth of parallelism, the biggest area of contact who remains brake disc and brake block throughout, reduces the degree of wear of brake disc and brake block, improves its brake performance.

2. The integrated annular ventilation holes are processed on the brake disc, so that better ventilation and heat dissipation effects can be achieved, the heat of the brake disc in the braking process is reduced, the brake disc is favorable for keeping good braking performance, and the service life of the brake disc is prolonged.

3. The machining of the invention adopts one-step clamping, and the machining is finished in the same procedure, thereby ensuring the form and position tolerance of the brake surface and the bearing chamber, and avoiding the error caused by the assembly of the prior split disc and the hub.

4. The brake disc is made of high-carbon high-silicon materials, so that the brake disc is better in heat dissipation performance and good in shock absorption effect; copper and chromium can increase the strength, refine pearlite, the addition of molybdenum enables the product consistency to be good, the hardness to be uniform, the addition of tin iron and titanium in proper amount increases the strength and tensile strength, and the wear resistance of the brake disc is integrally improved.

Drawings

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

FIG. 2 is a gold phase diagram of the brake disc material of the present invention.

Reference numerals shown in the drawings: 1. a hub; 2. a brake disc; 3. heat dissipation holes; 4. a vent hole.

Detailed Description

The invention is further described with reference to the accompanying drawings and specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.