CN209756632U

CN209756632U - Aluminum alloy wheel hub of making an uproar falls

Info

Publication number: CN209756632U
Application number: CN201920207325.5U
Authority: CN
Inventors: 陈柏辰; 王树强; 宗绪惠; 罗锦荣; 王前明
Original assignee: KunShan Liufeng Machinery Industry Co Ltd
Current assignee: KunShan Liufeng Machinery Industry Co Ltd
Priority date: 2019-01-23
Filing date: 2019-02-18
Publication date: 2019-12-10
Anticipated expiration: 2029-02-18
Also published as: CN109624596A

Abstract

The utility model provides an aluminum alloy wheel hub makes an uproar falls, is including quotation (1) that is radiation claw form and encircle child ring (2) of quotation (1), the inner circle of child ring (2) with the outer lane of quotation (1) is through spinning and cold metal transition welded joint and form and be located child ring (2) with annular cavity (3) between quotation (1), the intercommunication has on child ring (2) the through-hole of cavity (3). The utility model has the advantages that: manufacturing a whole-ring cavity for weight reduction and noise reduction by using a welding process between the tire ring and the disk surface; the welding of the ultrathin plate can be well realized by applying cold metal transition welding; the extremely stable welding has no splashing, and the arc length control is accurate and stable; the bridge building capability is good, so that the requirement on assembly clearance is reduced, and the structural perfection of the cavity is ensured; the cavity utilizes the Helmholtz resonator principle, so that the noise of the vehicle can be reduced, and the driving comfort is improved.

Description

Aluminum alloy wheel hub of making an uproar falls

Technical Field

The application belongs to the technical field of wheels, and particularly relates to a noise reduction aluminum alloy hub.

Background

Common automobile hubs include steel hubs (rings) and aluminum alloy hubs. The steel hub has high strength and is commonly used for large trucks; however, the steel hub is heavy in weight and single in appearance, does not conform to the current low-carbon and fashionable concepts, and is gradually replaced by the aluminum alloy hub which is beneficial to light weight of the vehicle.

The fuel consumption of the automobile is in direct proportion to the total mass of the automobile, the weight of the whole automobile is reduced by 10%, the fuel efficiency can be improved by 6% -8%, and the fuel consumption can be reduced to 0.3-0.6 liter per hundred kilometers when the mass of the whole automobile is reduced by 100 kilograms. According to the planning of energy conservation and new energy automobile industry development (2012-2020), the energy conservation and emission reduction needs to reach the regulation of 5L/100Km in 2020. Therefore, each large automobile factory starts to improve the automobile products according to the fuel consumption value, and the main three target directions are respectively: new energy automobile, power assembly technique and vehicle lightweight. Among them, the light weight of vehicles has become a key factor for promoting the whole materials, manufacturing equipment and technical process for vehicles. The light weight of the vehicle is realized by optimizing parts on the basis of stable mechanical properties, and the light weight of automobile materials from widely applied aluminum alloys and magnesium alloys to carbon fiber composite materials considered as the most potential materials enters a new development era.

The material cost in the production and manufacture of the aluminum alloy wheel hub accounts for 50 percent of the total manufacturing cost, 8Kg of wheel hub is used, and each wheel hub is lightened by 0.2Kg, so the manufacturing cost can be reduced by 1 to 2 percent, namely the profit of an enterprise can be increased by 1 to 2 percent. The aluminum alloy wheel hub has the lightest weight of more than 9.0kg such as 20X 8.5J inches, and the lightest weight of more than 10kg in some cases.

In order to reduce the oil consumption of products, reduce the emission of carbon dioxide, improve the environment, improve the quality of life and improve the advanced technology and high-end market advantage of a company in response to energy conservation and emission reduction, the company researches and develops the noise-reduction aluminum alloy hub.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the aluminum alloy wheel hub with the noise reduction function is provided for solving the defects that the weight reduction and the noise reduction of the aluminum alloy wheel hub are caused by the existing process and design in the prior art.

The utility model provides a technical scheme that its technical problem adopted is:

The utility model provides an aluminum alloy wheel hub of making an uproar falls, is including the quotation that is radiation claw form and encircle the child ring of quotation, the inner circle of child ring with the outer lane of quotation through spinning and cold metal transition welding joint and form and be located the child ring with the annular cavity between the quotation, have on the child ring and communicate the through-hole of cavity.

In one embodiment, the outer ring of the disk surface is provided with a fin, the fin is formed into a shell ring through spinning, and the disk surface is jointed with the tire ring through the shell ring.

In one embodiment, the minimum thickness from the inner wall of the cavity to the outer wall of the disk surface is 8.03 mm.

In one embodiment, the tire ring and the disk face are cast from an a356 series aluminum alloy.

In one embodiment, a plurality of partition plates are arranged in the cavity to divide the cavity into a plurality of small separated cells.

In one embodiment, the volume of the cavity is 163 cubic centimeters to 740 cubic centimeters.

The utility model has the advantages that: manufacturing a whole-ring cavity for weight reduction and noise reduction by using a welding process between the tire ring and the disk surface; the welding of the ultrathin plate can be well realized by applying cold metal transition welding; the extremely stable welding has no splashing, and the arc length control is accurate and stable; the bridge building capability is good, so that the requirement on assembly clearance is reduced, and the structural perfection of the cavity is ensured; the cavity utilizes the Helmholtz resonator principle, so that the noise of the vehicle can be reduced, and the driving comfort is improved.

Drawings

FIG. 1 is a schematic structural view of an aluminum alloy hub according to an embodiment of the present application.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the scope of the present application. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.

Referring to fig. 1, the embodiment of the utility model discloses an aluminum alloy wheel hub that makes an uproar falls, including the quotation 1 that is the radiation claw form and the child ring 2 that encircles quotation 1, 1 outer lane in quotation is the ring, and the ring center is the rotation center of quotation. The tyre ring 2 is in a circular ring shape, the outer ring of the tyre ring 2 is used for bearing a tyre, and the inner ring is connected with the outer ring of the disc surface 1. The disk surface 1 and the tire ring 2 are fixed by performing a part of welding process at the joint, thereby fixing the disk surface 1 and the tire ring 2. In order to reduce the material consumption and the whole weight of the aluminum alloy hub, an annular cavity 3 is arranged between the tire ring 2 and the disk surface 1, and the tire ring 2 is provided with a through hole communicated with the cavity 3. In the embodiment, the annular cavity 3 is formed between the tire ring 2 and the disk surface 1 by spinning and cold metal transfer welding (CMT) of the inner ring of the tire ring 2 and the outer ring of the disk surface 1. It should be noted that, besides the weight reduction, the resonance frequency of the aluminum alloy hub can be controlled by designing the specification and the number of the cavities 3 due to the resonance (helmholtz resonance) phenomenon of the air in the cavity, so that the driving noise of the vehicle is reduced, and the driving comfort is improved.

In one embodiment, divider panels are provided within the cavity 3 to divide the cavity 3 into small compartments. The partition plates can be used as a design means for reducing noise by utilizing Helmholtz resonance, namely the through holes are used for changing the number and the positions of the partition plates so as to change the specification and the number of the cavities 3 to control the resonance frequency of the aluminum alloy hub. The design rules of the partition plates for hubs of different models can be obtained through routine experiments or calculation, and are not described in detail. In this embodiment, however, the partition has at least one, and correspondingly, it divides at least the above-mentioned cavity 3 into two smaller compartments, so as to achieve the effect of adjusting the resonance frequency of the hub.

In one embodiment, the outer ring of the disk surface 1 is provided with a fin, the fin is formed into a shell ring by spinning, and finally, the disk surface 1 is jointed with the tire ring 2 through the shell ring, namely, the inner ring of the tire ring 2 is jointed with the shell ring, so that the annular cavity 3 is formed between the tire ring 2 and the disk surface 1. In this embodiment, the fins are formed by low pressure casting and the fins are formed into the shell ring by hot spinning. The sealing effect of the disc surface 1 and the tire ring 2 is better, the cavity 3 has good sealing performance, and the whole structure of the hub is more stable.

In order to reduce the weight of the aluminum alloy hub as much as possible and ensure the structural strength, in one embodiment, the minimum thickness from the inner wall of the cavity 3 to the outer wall of the disk surface 1 is 8.03 mm. In different embodiments, the thickness from the inner wall of the cavity 3 to the outer wall of the disk face 1 can be equal to or greater than 8.03mm, such as 8.50mm or 9.00mm, and can be changed according to hubs of different specifications and process requirements.

In one embodiment, the tire ring 2 and the disk surface 1 are cast by an A356 series aluminum alloy, and the tire ring has good fluidity, no hot cracking tendency, small linear shrinkage and good air tightness, and is beneficial to the expansion of an automobile hub casting process.

In one embodiment, repeated experiments show that the volume of the cavity 3 is 163-740 cubic centimeters in order to achieve better weight reduction and noise reduction effects while ensuring the structural strength of the hub. In different embodiments, the volume of the cavity 3 may be 163 cubic centimeters or 450 cubic centimeters or 740 cubic centimeters.

In various embodiments, a tire pressure sensor may be further disposed in the cavity 3. The tire pressure sensor (TPMS) can automatically monitor various conditions of the tire in real time, and can provide effective safety guarantee for driving.

The embodiment of the utility model provides an in still disclose a manufacturing method of making an uproar aluminum alloy wheel hub falls, including following step: firstly, casting a disc surface 1 and a tire ring 2 by using a low-pressure casting method; then welding the tire ring 2 and the disk surface 1 through cold metal transition; and finally, performing finish machining and drilling on the welded tire ring 2 and the disk surface 1. After further completion of drilling, tire mounting and noise testing, the tire mounted with the aluminum alloy wheel hub of the present embodiment was completed.

In one embodiment, the method for manufacturing the noise-reducing aluminum alloy hub further comprises: when the disk surface 1 is cast, a low pressure casting method is used for casting a fin positioned on the outer ring of the disk surface 1, and then the fin is spun to produce a shell ring.

Through repeated tests, if the weight of the 20-inch noise reduction hub developed by the new process at present is about 13.83kg in the traditional design, the weight is improved to 12.83kg (the weight is reduced by 1kg, namely 8%) through the structural design and the optimized processes such as spinning and cold metal transfer welding (CMT), and the excellent noise reduction effect (the noise reduction is 40%) is obtained.

To sum up, the beneficial effects of the utility model are that: manufacturing a whole-ring cavity for weight reduction and noise reduction by using a welding process between the tire ring and the disk surface; the welding of the ultrathin plate can be well realized by applying cold metal transition welding; the extremely stable welding has no splashing, and the arc length control is accurate and stable; the bridge building capability is good, so that the requirement on assembly clearance is reduced, and the structural perfection of the cavity is ensured; the cavity utilizes the Helmholtz resonator principle, so that the noise of the vehicle can be reduced, and the driving comfort is improved.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.

In light of the foregoing description of the preferred embodiments according to the present application, it is to be understood that various changes and modifications may be made without departing from the spirit and scope of the invention. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides an aluminum alloy wheel hub that makes an uproar falls, its characterized in that, including quotation (1) that is radiation claw form and encircle child ring (2) of quotation (1), the inner circle of child ring (2) with the outer lane of quotation (1) is through spinning and cold metal transition welding joint and form and be located child ring (2) with annular cavity (3) between quotation (1), have the intercommunication on child ring (2) the through-hole of cavity (3).

2. The noise-reducing aluminum alloy hub according to claim 1, wherein the disc face (1) outer ring has fins formed by spinning into a shell ring through which the disc face (1) is joined with the tire ring (2).

3. The noise-reducing aluminum alloy hub according to claim 1, wherein the minimum thickness from the inner wall of the cavity (3) to the outer wall of the disk face (1) is 8.03 mm.

4. A noise reducing aluminium alloy hub according to claim 1, wherein the tire ring (2) and the disc face (1) are cast from an a356 series aluminium alloy.

5. a noise reducing aluminium alloy hub according to claim 1, wherein the cavity (3) is provided with a plurality of partition plates therein to divide the cavity (3) into a plurality of small cells.

6. The noise reducing aluminum alloy hub of claim 1, wherein the volume of the cavity (3) is 163-740 cubic centimeters.