CN110949060A - Improved motor vehicle aluminum alloy hub - Google Patents
Improved motor vehicle aluminum alloy hub Download PDFInfo
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- CN110949060A CN110949060A CN201911376854.9A CN201911376854A CN110949060A CN 110949060 A CN110949060 A CN 110949060A CN 201911376854 A CN201911376854 A CN 201911376854A CN 110949060 A CN110949060 A CN 110949060A
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
- B60B3/10—Disc wheels, i.e. wheels with load-supporting disc body apertured to simulate spoked wheels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B21/00—Rims
- B60B21/02—Rims characterised by transverse section
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2360/00—Materials; Physical forms thereof
- B60B2360/10—Metallic materials
- B60B2360/104—Aluminum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2900/00—Purpose of invention
- B60B2900/10—Reduction of
- B60B2900/111—Weight
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2900/00—Purpose of invention
- B60B2900/30—Increase in
- B60B2900/325—Reliability
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- Body Structure For Vehicles (AREA)
Abstract
The invention provides an improved aluminum alloy hub for a motor vehicle, wherein spokes of the improved aluminum alloy hub for the motor vehicle define a plurality of circular windows, the spokes are positioned between a flange plate and an outer wheel lip bead seat, and a line segment of the surface of an outer wheel lip, which is intersected with a plane passing through a central axis of the flange plate, consists of an arc line E0, a line segment E1, an arc line E2, a line segment E3, an arc line E4, an arc line E5 and an arc line E6 which are connected in sequence. The improved aluminum alloy hub of the motor vehicle has the advantages that: (1) the stress distribution is more uniform; (2) the whole stress level of the hub is lower; (3) the hub reliability is higher.
Description
Technical Field
The invention relates to the technical field of motor vehicle parts, in particular to an improved motor vehicle aluminum alloy hub.
Background
The hub, the alias rim, i.e. the part of the tyre inner profile that supports the cylindrical, centrally fitted on the shaft of the tyre. Common automobile hubs include steel hubs and aluminum alloy hubs. The steel hub has high strength and is commonly used for large trucks; however, the steel hub has heavy mass and single appearance, is not in line with the current low-carbon and fashionable concepts, and is gradually replaced by the aluminum alloy hub. Compared with steel automobile hubs, aluminum alloy wheel hub's advantage is more obvious: the density is low, about 1/3 in steel, which means that an aluminum alloy hub using the same volume will be 2/3 lighter than a steel hub. Statistics shows that the whole automobile mass is reduced by 10%, and the fuel efficiency can be improved by 6-8%, so that the popularization of the aluminum alloy hub has important significance for energy conservation, emission reduction and low-carbon life.
In commercial vehicles, such as passenger cars, vans and the like, steel hubs or aluminum alloy forged hubs are often used. However, the existing aluminum alloy forged hub has the characteristics of insufficient strength, unobvious weight reduction effect and the like. In order to realize the wide application of aluminum-aluminum alloy forged hubs, a more excellent hub configuration structure needs to be found.
Meanwhile, steel hubs are currently incorporated into the U.S. catalog for "double-reaction" surveys and are likely to suffer from U.S. reimbursement duties in the future, which in turn leads to market competitiveness decline and market shrinkage. The development of the aluminum alloy commercial vehicle hub with high performance is beneficial to improving the competitiveness and export strength of enterprises in China.
Disclosure of Invention
It is therefore an object of the present invention to provide an improved aluminium alloy hub for a motor vehicle, which overcomes the above problems.
Unless otherwise specified, "aluminum alloy" in the present invention means an alloy having aluminum as a main alloy material, and is, for example, an a356.2 aluminum alloy, a 7-series aluminum alloy, an 8-series aluminum alloy, or the like. As long as it has been used in the prior art for the forging, casting or other forming of aluminum alloy wheels, it is believed that the aluminum alloy may be selected for the aluminum alloy wheel.
Unless otherwise stated, within the present invention, "hub" is used interchangeably with terms "wheel", "rim", etc., and is intended to refer to devices mounted to the front and rear axles of a motor vehicle for power transmission and roll forward. The outer side of the "hub" typically comprises rubber, resin, leather, plastic, fabric or other material, or a composite of the above materials, such as a tire.
Unless otherwise indicated, the term "hub" as described within the present invention also includes wheels mounted to other locations of the motor vehicle, such as behind the body or under the trunk, for decorative or alternate use, rather than directly to the front and rear axles of the motor vehicle.
Unless otherwise stated, within the present invention, "motor vehicle" means an artificial device operating on the ground by means of a wheel-like structure in all or part of its functional mode. In the narrow definition of terms, "motor vehicle" includes various vehicles such as compact passenger cars, SUVs, MPVs, sports cars, large and medium sized trucks, vans, pickup trucks, vans, tractors, trailers, mining trucks, and the like. In the broad definition of terms, "motor vehicle" also includes an aircraft, a lunar vehicle or other planetary or satellite exploration equipment, an amphibious vehicle, a military armored vehicle, a movable base for large equipment, a girder, a tank, a steam locomotive, an electric locomotive, an internal combustion locomotive, a manual rail engineering vehicle which needs to glide to take off and land on the ground. In the definition of the other terms, "motor vehicle" also includes a rolling device fixed to the ground or to a device. In the environment of the rolling device, the rotation of the hub drives the belt or chain against which it is attached and drives the belt or chain in motion.
In one aspect of the invention, the "aluminum alloy hub for a motor vehicle" comprises a flange plate, a spoke and a rim; the flange is cylindrical, and flange bolt holes penetrating through the bottom surface of the cylinder are uniformly distributed; one end of the inner side of the spoke is connected to the flange plate, and one end of the outer side of the spoke is connected to the rim through the bead seat; the wheel rim comprises an outer wheel lip, an outer wheel lip bead seat, a wheel well, a wheel rim middle section, an inner wheel lip bead seat and an inner wheel lip which are sequentially connected end to end along the direction perpendicular to the plane of the flange plate; the outer wheel lip extends along the outer wheel lip bead seat in the direction away from the flange plate, and the tail end of the outer wheel lip comprises an outer wheel rim; the outer wheel lip bead seat is connected to the outer wheel lip in the outer side direction of the wheel disc, the side face of the outer wheel lip bead seat is connected to the wheel disc, and the inner side direction of the wheel disc is connected to the wheel well; the wheel well is conical or cylindrical and is connected to the middle rim section in the outer side direction of the wheel disc; the middle section of the rim is conical or cylindrical, and is connected with an inner wheel lip bead seat in the outer side direction of the wheel disc; the inner wheel lip bead seats are recessed relative to the inner wheel lip and are connected to the inner wheel lip in the outboard direction of the wheel disc; the inner rim extends away from the central axis of the flange and includes an inner rim at the distal end.
In one aspect of the present invention there is provided an improved automotive aluminium alloy hub having spokes defining a plurality of circular windows, the spokes being located between a flange and an outer lip bead seat, the segment of the outer lip surface intersecting a plane passing through the central axis of the flange being defined by successively connected arc E0, segment E1, arc E2, segment E3, arc E4, arc E5 and arc E6; the arc E0 is positioned on one side close to the spoke and is in the shape of an arc which is concave towards the direction far away from the flange plate, the radius of the arc E0 is 1.0-2.0 mm, the arc angle is 70.0-95.0 degrees, and two ends of the arc E0 are tangent to the upper surface of the spoke and the line segment E1 respectively; the line segment E1 is positioned between the arc lines E2 and E0, is a horizontal line segment, has the length of 2.0-4.0 mm, and the two ends of the line segment E1 are tangent to the arc line E0 and the arc line E2 respectively; the arc line E2 is positioned between the line segment E1 and the arc line E3, is in the shape of an arc which is concave towards the direction of the flange plate, has the radius of 2.0-5.0 mm and the arc angle of 90.0 degrees, and the two ends of the arc line E2 are tangent to the line segment E1 and the line segment E3 respectively; the line segment E3 is positioned between the arc E2 and the arc E4, is a vertical line segment, has the length of 3.0-6.0mm, and the two ends of the line segment E3 are tangent to the arc E2 and the arc E4 respectively; the arc E4 is positioned between the line E3 and the arc E5, is in the shape of an arc which is concave towards the flange plate, has the radius of 5.0-7.0mm and the arc angle of 20.0-35.0 degrees, and the two ends of the arc E4 are tangent to the line E3 and the arc E5 respectively; the arc E5 is positioned between the arc E4 and the arc E6, is in the shape of an arc which is concave towards the direction of the flange plate, has the radius of 10.0-15.0 mm and the arc angle of 30.0-50.0 degrees, and the two ends of the arc E5 are tangent to the arc E4 and the arc E6 respectively; the arc E6 is located between the arc E5 and the outer wheel lip bead seat and is in the shape of a circular arc which is concave towards the direction away from the flange plate, the radius of the arc E6 is 5.0-10.0 mm, the arc angle is 60.0-75.0 degrees, and two ends of the arc E6 are tangent to the arc E5 and the outer surface of the outer wheel lip bead seat respectively.
In a preferred aspect of the present invention, the arc E0 is a circular arc that is concave in a direction away from the flange plate and has a radius of 1.4-1.6 mm, and an arc angle of 85.0-95.0 degrees, and both ends of the arc E0 are tangent to the upper surface of the spoke and the line segment E1, respectively.
In a preferred aspect of the invention, the segment E1 is located between the arc E2 and the arc E0, is a horizontal segment, has a length of 2.5-3.5 mm, and has two ends of the segment E1 tangent to the arc E0 and the arc E2 respectively.
In a preferred aspect of the present invention, the arc E2 is located between the line segment E1 and the arc E3, and is a circular arc concave toward the flange, the radius of the circular arc is 3.0-4.0 mm, the arc angle is 90.0 degrees, and both ends of the arc E2 are tangent to the line segment E1 and the line segment E3 respectively.
In a preferred aspect of the present invention, the line segment E3 is located between the arc E2 and the arc E4, and is a vertical line segment with a length of 4.2-4.8mm, and both ends of the line segment E3 are tangent to the arc E2 and the arc E4, respectively.
In a preferred aspect of the present invention, the arc E4 is located between the line segment E3 and the arc E5, and is a circular arc concave toward the flange, the radius of the circular arc is 6.0-6.8 mm, the arc angle is 25.5-30.0 degrees, and both ends of the arc E4 are tangent to the line segment E3 and the arc E5, respectively.
In a preferred aspect of the present invention, the arc E5 is located between the arc E4 and the arc E6, and is a circular arc concave toward the flange, the radius of the circular arc is 11.5-13.0 mm, the arc angle is 40.0-48.0 degrees, and both ends of the arc E5 are tangent to the arc E4 and the arc E6 respectively.
In a preferred aspect of the invention, the arc E6 is between the arc E5 and the outer lip bead seat and is in the shape of a circular arc recessed away from the flange, the radius of the arc is 7.0-7.8 mm, the arc angle is 60.0-65.0 degrees, and the two ends of the arc E6 are tangent to the arc E5 and the outer surface of the outer lip bead seat respectively.
In a preferred aspect of the invention, the spokes of the improved aluminum alloy hub of the motor vehicle define a plurality of circular windows, the spokes are positioned between the flange plate and the outer lip bead seat, and the segment of the outer lip surface intersecting the plane passing through the central axis of the flange plate is composed of an arc line E0, an arc line E1, an arc line E2, an arc line E3, an arc line E4, an arc line E5 and an arc line E6 which are connected in sequence; the arc E0 is positioned on one side close to the spoke and is in the shape of an arc which is concave towards the direction far away from the flange plate, the radius of the arc E0 is 1.5 mm, the arc angle is 90.0 degrees, and two ends of the arc E0 are tangent to the upper surface of the spoke and the line segment E1 respectively; the segment E1 is positioned between the arc E2 and the arc E0, is a horizontal segment, and has a length of 3.0mm, and two ends of the segment E1 are tangent to the arc E0 and the arc E2 respectively; the arc line E2 is positioned between the line segment E1 and the arc line E3, is in the shape of an arc which is concave towards the flange plate, has the radius of 3.2 mm and the arc angle of 90 degrees, and the two ends of the arc line E2 are tangent to the line segment E1 and the line segment E3 respectively; the segment E3 is located between the arc E2 and the arc E4, is a vertical segment, and has a length of 4.6 mm, and two ends of the segment E3 are tangent to the arc E2 and the arc E4 respectively; the arc line E4 is positioned between the line segment E3 and the arc line E5, is in the shape of an arc which is concave towards the flange plate, has the radius of 6.4 mm and the arc angle of 28.4 degrees, and the two ends of the arc line E4 are tangent to the line segment E3 and the arc line E5 respectively; the arc line E5 is positioned between the arc line E4 and the arc line E6, is in the shape of an arc which is concave towards the direction of the flange plate, has the radius of 12.7 mm and the arc angle of 45.0 degrees, and the two ends of the arc line E5 are tangent to the arc line E4 and the arc line E6 respectively; arc E6 be located arc E5 and outer lip bead seat between to be to keeping away from the circular arc that the ring flange direction is sunken, its radius is 7.3 mm, the arc angle is 61.8 degrees, arc E6's both ends respectively with arc E5, outer lip bead seat surface tangent.
In a preferred aspect of the invention, the difference from example 1 is that the improved spoke for an aluminium alloy hub for a motor vehicle defines a plurality of circular windows, the spoke being located between the flange and the outer lip bead seat, the segment of the outer lip surface intersecting a plane passing through the central axis of the flange being defined by the successive connecting arcs E0, E1, E2, E3, E4, E5 and E6; the arc line E0 is positioned on one side close to the spoke and is in the shape of an arc which is concave towards the direction far away from the flange plate, the radius of the arc line E0 is 1.6 mm, the arc angle is 90 degrees, and two ends of the arc line E0 are tangent to the upper surface of the spoke and the line segment E1 respectively; the segment E1 is positioned between the arc E2 and the arc E0, is a horizontal segment, and has a length of 2.8mm, and two ends of the segment E1 are tangent to the arc E0 and the arc E2 respectively; the arc line E2 is positioned between the line segment E1 and the arc line E3, is in the shape of an arc which is concave towards the flange plate, has the radius of 3.3 mm and the arc angle of 90 degrees, and the two ends of the arc line E2 are tangent to the line segment E1 and the line segment E3 respectively; the segment E3 is located between the arc E2 and the arc E4, is a vertical segment, and has a length of 4.5 mm, and two ends of the segment E3 are tangent to the arc E2 and the arc E4 respectively; the arc E4 is positioned between the line segment E3 and the arc E5, is in the shape of an arc which is concave towards the flange plate, has the radius of 7.0mm and the arc angle of 29.9 degrees, and the two ends of the arc E4 are tangent to the line segment E3 and the arc E5 respectively; the arc line E5 is positioned between the arc line E4 and the arc line E6, is in the shape of an arc which is concave towards the direction of the flange plate, has the radius of 11.6 mm and the arc angle of 43.4 degrees, and the two ends of the arc line E5 are tangent to the arc line E4 and the arc line E6 respectively; arc E6 be located arc E5 and outer lip bead seat between to be to keeping away from the circular arc that the ring flange direction is sunken, its radius is 7.3 mm, the arc angle is 61.8 degrees, arc E6's both ends respectively with arc E5, outer lip bead seat surface tangent.
In a preferred aspect of the invention, the difference from example 1 is that the improved spoke for an aluminium alloy hub for a motor vehicle defines a plurality of circular windows, the spoke being located between the flange and the outer lip bead seat, the segment of the outer lip surface intersecting a plane passing through the central axis of the flange being defined by the successive connecting arcs E0, E1, E2, E3, E4, E5 and E6; the arc E0 is positioned on one side close to the spoke and is in the shape of a circular arc which is concave towards the direction far away from the flange plate, the radius of the arc E0 is 1.8 mm, the arc angle is 76.9 degrees, and two ends of the arc E0 are tangent to the upper surface of the spoke and the line segment E1 respectively; the segment E1 is positioned between the arc E2 and the arc E0, is a horizontal segment, and has a length of 2.8mm, and two ends of the segment E1 are tangent to the arc E0 and the arc E2 respectively; the arc line E2 is positioned between the line segment E1 and the arc line E3, is in the shape of an arc which is concave towards the flange plate, has the radius of 3.0mm and the arc angle of 90 degrees, and the two ends of the arc line E2 are tangent to the line segment E1 and the line segment E3 respectively; the segment E3 is located between the arc E2 and the arc E4, is a vertical segment, and has a length of 4.8mm, and two ends of the segment E3 are tangent to the arc E2 and the arc E4 respectively; the arc E4 is positioned between the line E3 and the arc E5, is in the shape of an arc which is concave towards the flange plate, has the radius of 5.0 mm and the arc angle of 24.5 degrees, and the two ends of the arc E4 are tangent to the line E3 and the arc E5 respectively; the arc line E5 is positioned between the arc line E4 and the arc line E6, is in the shape of an arc which is concave towards the direction of the flange plate, has the radius of 11.5 mm and the arc angle of 43.4 degrees, and the two ends of the arc line E5 are tangent to the arc line E4 and the arc line E6 respectively; arc E6 be located arc E5 and outer lip bead seat between to be to keeping away from the circular arc that the ring flange direction is sunken, its radius is 7.3 mm, the arc angle is 61.8 degrees, arc E6's both ends respectively with arc E5, outer lip bead seat surface tangent.
The improved aluminum alloy hub of the motor vehicle has the advantages that: (1) the stress distribution is more uniform; (2) the whole stress level of the hub is lower; (3) the hub reliability is higher.
Drawings
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1: a perspective view of a hub according to embodiment 1 of the present invention.
FIG. 2: a cross-sectional schematic view of a hub of embodiment 1 of the present invention.
FIG. 3: a cross-sectional schematic view of the hub of comparative example 1 of the present invention.
In the figure: 1-flange bolt hole, 2-flange, 3-spoke, 4-rim, 41-outer wheel lip, 42-outer wheel lip bead seat, 43-wheel well, 44-middle rim section, 45-inner wheel lip bead seat and 46-inner wheel lip. E0-arc E0, E1-arc E1, E2-arc E2, E3-arc E3, E4-arc E4, E5-arc E5, E6-arc E6, F0-arc F0, F1-arc F1, F2-arc F2, F3-arc F3, F4-arc F4, and F5-arc F5.
Detailed Description
Example 1: in the embodiment, an improved aluminum alloy hub of a motor vehicle is disclosed, which comprises a flange plate 2, spokes 3 and a rim 4; the flange 2 is cylindrical, and flange bolt holes 1 penetrating through the bottom surface of the cylinder are uniformly distributed; one end of the inner side of the spoke 3 is connected to the flange plate 2, and one end of the outer side of the spoke is connected to the wheel rim 4 through an outer wheel lip bead seat 42; the rim 4 comprises an outer wheel lip 41, an outer wheel lip bead seat 42, a wheel well 43, a rim middle section 44, an inner wheel lip bead seat 45 and an inner wheel lip 46 which are sequentially connected end to end along the direction perpendicular to the plane of the flange plate 2; the outer wheel lip 41 extends along the outer wheel lip bead seat 42 in a direction away from the flange 2 and includes an outer wheel rim at the end; the outer wheel lip bead seat 42 is connected to the outer wheel lip in the outer side direction of the wheel disc, the side surface of the outer wheel lip bead seat is connected to the wheel disc, and the inner side direction of the wheel disc is connected to the wheel well 43; the wheel well 43 is conical or cylindrical and is connected to the rim middle section 44 in the outer direction of the wheel disc; the rim middle section 44 is conical or cylindrical and is connected to the inner lip bead seat 42 in the outer direction of the wheel disc; the inner lip bead seat 42 is recessed relative to the inner lip 46 and is connected to the inner lip 46 in the outboard direction of the wheel; the inner lip 46 extends away from the central axis of the flange 2 and includes an inner rim at the distal end.
The spoke of the improved aluminum alloy hub of the motor vehicle defines a plurality of circular windows, the spoke is positioned between a flange plate and an outer wheel lip bead seat, and a line segment of the surface of the outer wheel lip, which is intersected with a plane passing through a central axis of the flange plate, consists of an arc line E0, a line segment E1, an arc line E2, a line segment E3, an arc line E4, an arc line E5 and an arc line E6 which are connected in sequence; the arc E0 is positioned on one side close to the spoke and is in the shape of an arc which is concave towards the direction far away from the flange plate, the radius of the arc E0 is 1.5 mm, the arc angle is 90.0 degrees, and two ends of the arc E0 are tangent to the upper surface of the spoke and the line segment E1 respectively; the segment E1 is positioned between the arc E2 and the arc E0, is a horizontal segment, and has a length of 3.0mm, and two ends of the segment E1 are tangent to the arc E0 and the arc E2 respectively; the arc line E2 is positioned between the line segment E1 and the arc line E3, is in the shape of an arc which is concave towards the flange plate, has the radius of 3.2 mm and the arc angle of 90 degrees, and the two ends of the arc line E2 are tangent to the line segment E1 and the line segment E3 respectively; the segment E3 is located between the arc E2 and the arc E4, is a vertical segment, and has a length of 4.6 mm, and two ends of the segment E3 are tangent to the arc E2 and the arc E4 respectively; the arc line E4 is positioned between the line segment E3 and the arc line E5, is in the shape of an arc which is concave towards the flange plate, has the radius of 6.4 mm and the arc angle of 28.4 degrees, and the two ends of the arc line E4 are tangent to the line segment E3 and the arc line E5 respectively; the arc line E5 is positioned between the arc line E4 and the arc line E6, is in the shape of an arc which is concave towards the direction of the flange plate, has the radius of 12.7 mm and the arc angle of 45.0 degrees, and the two ends of the arc line E5 are tangent to the arc line E4 and the arc line E6 respectively; arc E6 be located arc E5 and outer lip bead seat between to be to keeping away from the circular arc that the ring flange direction is sunken, its radius is 7.3 mm, the arc angle is 61.8 degrees, arc E6's both ends respectively with arc E5, outer lip bead seat surface tangent.
Example 2: in this embodiment, the difference from embodiment 1 is that the spokes of the improved aluminum alloy hub of the motor vehicle define a plurality of circular windows, the spokes are located between the flange and the outer lip bead seat, and the segment of the outer lip surface intersecting the plane passing through the central axis of the flange is composed of an arc E0, an E1, an E2, an E3, an E4, an E5 and an E6 which are connected in sequence; the arc line E0 is positioned on one side close to the spoke and is in the shape of an arc which is concave towards the direction far away from the flange plate, the radius of the arc line E0 is 1.6 mm, the arc angle is 90 degrees, and two ends of the arc line E0 are tangent to the upper surface of the spoke and the line segment E1 respectively; the segment E1 is positioned between the arc E2 and the arc E0, is a horizontal segment, and has a length of 2.8mm, and two ends of the segment E1 are tangent to the arc E0 and the arc E2 respectively; the arc line E2 is positioned between the line segment E1 and the arc line E3, is in the shape of an arc which is concave towards the flange plate, has the radius of 3.3 mm and the arc angle of 90 degrees, and the two ends of the arc line E2 are tangent to the line segment E1 and the line segment E3 respectively; the segment E3 is located between the arc E2 and the arc E4, is a vertical segment, and has a length of 4.5 mm, and two ends of the segment E3 are tangent to the arc E2 and the arc E4 respectively; the arc E4 is positioned between the line segment E3 and the arc E5, is in the shape of an arc which is concave towards the flange plate, has the radius of 7.0mm and the arc angle of 29.9 degrees, and the two ends of the arc E4 are tangent to the line segment E3 and the arc E5 respectively; the arc line E5 is positioned between the arc line E4 and the arc line E6, is in the shape of an arc which is concave towards the direction of the flange plate, has the radius of 11.6 mm and the arc angle of 43.4 degrees, and the two ends of the arc line E5 are tangent to the arc line E4 and the arc line E6 respectively; arc E6 be located arc E5 and outer lip bead seat between to be to keeping away from the circular arc that the ring flange direction is sunken, its radius is 7.3 mm, the arc angle is 61.8 degrees, arc E6's both ends respectively with arc E5, outer lip bead seat surface tangent.
Example 3: in this embodiment, the difference from embodiment 1 is that the spokes of the improved aluminum alloy hub of the motor vehicle define a plurality of circular windows, the spokes are located between the flange and the outer lip bead seat, and the segment of the outer lip surface intersecting the plane passing through the central axis of the flange is composed of an arc E0, an E1, an E2, an E3, an E4, an E5 and an E6 which are connected in sequence; the arc E0 is positioned on one side close to the spoke and is in the shape of a circular arc which is concave towards the direction far away from the flange plate, the radius of the arc E0 is 1.8 mm, the arc angle is 76.9 degrees, and two ends of the arc E0 are tangent to the upper surface of the spoke and the line segment E1 respectively; the segment E1 is positioned between the arc E2 and the arc E0, is a horizontal segment, and has a length of 2.8mm, and two ends of the segment E1 are tangent to the arc E0 and the arc E2 respectively; the arc line E2 is positioned between the line segment E1 and the arc line E3, is in the shape of an arc which is concave towards the flange plate, has the radius of 3.0mm and the arc angle of 90 degrees, and the two ends of the arc line E2 are tangent to the line segment E1 and the line segment E3 respectively; the segment E3 is located between the arc E2 and the arc E4, is a vertical segment, and has a length of 4.8mm, and two ends of the segment E3 are tangent to the arc E2 and the arc E4 respectively; the arc E4 is positioned between the line E3 and the arc E5, is in the shape of an arc which is concave towards the flange plate, has the radius of 5.0 mm and the arc angle of 24.5 degrees, and the two ends of the arc E4 are tangent to the line E3 and the arc E5 respectively; the arc line E5 is positioned between the arc line E4 and the arc line E6, is in the shape of an arc which is concave towards the direction of the flange plate, has the radius of 11.5 mm and the arc angle of 43.4 degrees, and the two ends of the arc line E5 are tangent to the arc line E4 and the arc line E6 respectively; arc E6 be located arc E5 and outer lip bead seat between to be to keeping away from the circular arc that the ring flange direction is sunken, its radius is 7.3 mm, the arc angle is 61.8 degrees, arc E6's both ends respectively with arc E5, outer lip bead seat surface tangent.
Comparative example 1: the difference between this comparative example and example 1 is that the spokes of an aluminum alloy hub for a motor vehicle, which define a plurality of circular windows, are located between the flange and the outer lip bead seat, and the segment of the outer lip surface intersecting the plane passing through the central axis of the flange is formed by connecting, in series, arc F0, segment F1, arc F2, segment F3, arc F4 and arc F5; the arc F0 is positioned on one side close to the spoke and is in the shape of a circular arc which is concave towards the direction far away from the flange plate, the radius of the arc F0 is 1.5 mm, the arc angle is 76.8 degrees, and two ends of the arc F0 are tangent to the upper surface of the spoke and the line segment F1 respectively; the line segment F1 is positioned between the arc F2 and the arc F0, is a horizontal line segment, and has a length of 3.0mm, and two ends of the line segment F1 are tangent to the arc F0 and the arc F2 respectively; the arc F2 is positioned between the line segment F1 and the arc F3, is in the shape of an arc which is concave towards the flange plate, has the radius of 3.5 mm and the arc angle of 90 degrees, and the two ends of the arc F2 are tangent to the line segment F1 and the line segment F3 respectively; the line segment F3 is positioned between an arc line F2 and an arc line F4, is a vertical line segment, has the length of 1.2 mm, and two ends of the line segment F3 are tangent to the arc line F2 and the arc line F4 respectively; the arc F4 is located between the line segment F3 and the arc F5, is in the shape of an arc which is concave towards the flange plate, has the radius of 12.7 mm and the arc angle of 71.5 degrees, and the two ends of the arc F4 are tangent to the line segment F3 and the arc F5 respectively; arc F5 be located arc F4 and outer lip bead seat between to for keeping away from the circular arc that the ring flange direction is sunken, its radius is 8.0 mm, the arc angle is 56.5 degrees, arc F5's both ends respectively with arc F4, outer lip bead seat surface tangent. The structures of the wheel rim and the flange are the same as the embodiment.
Example 4: the hubs of examples 1, 2 and 3 and comparative example 1 were subjected to weight measurement, and the results thereof are shown in table 1.
Table 1: the results of weight measurement (unit: Kg) of examples 1, 2 and 3 and comparative example 1.
| Example 1 | Example 2 | Example 3 | Comparative example 1 | |
| Weight (D) | 25.60 | 25.61 | 25.62 | 25.59 |
As can be seen from Table 1, in the case of the structures of the other portions being identical, the weights of examples 1, 2 and 3 were slightly increased as compared with the comparative example, and the weight of example 1 was increased by 10g as compared with the weight of comparative example 1.
Example 5: two performance tests and stress level measurements were performed on the hubs of examples 1, 2 and 3 and comparative example 1. The above wheels were subjected to bending fatigue and radial fatigue tests in accordance with the national standard GB/T5909-. Unless otherwise noted, the radial fatigue testing machine used in the present embodiment is also called a wheel radial fatigue testing machine, and is available from jinan permanent testing industrial equipment limited.
Before the radial fatigue test process, the hub is firstly fixed to the radial fatigue test machine, and then the strain gauge is fixed on the front face of the window of the hub and is connected to the data acquisition device through a lead. Then, the loading and the rotation of the fatigue test are carried out according to the method of the national standard GB/T5909-2009. After at least one wheel revolution, the strain gauge transmits strain information (epsilon, dimensionless, in percent) to the data acquisition device. Then according to the stress-strain relationship: σ = E ∈, converting strain into stress (σ is stress, in MPa; E is the elastic modulus, 68980 MPa). The results of their test passability and stress level are shown in table 2.
In this embodiment, the strain gauge is an elastic strain gauge available from Zhongsheng Industrial Electrical measuring instruments, Inc.
The results of their test passability and stress level are shown in table 2.
Table 2: wheel performance tests and stress level measurements (unit: MPa) of examples 1, 2 and 3 and comparative example 1.
| Example 1 | Example 2 | Example 3 | Comparative example 1 | |
| Flexural fatigue | Y | Y | Y | Y |
| Radial fatigue | Y | Y | Y | N |
| Stress level | 75.2 | 77.6 | 78.1 | 84.9 |
Description of the drawings: in the table, Y indicates that the test was passed, and N indicates that the test was not passed.
As can be seen from Table 2, examples 1, 2 and 3 all passed both tests, and comparative example 1 only passed the bending fatigue test.
As can be seen from table 2, the outer wheel lips of examples 1, 2 and 3 have lower peak stress levels and comparative example 1 has higher stress levels. Example 1 the stress was 9.7MPa lower than comparative example 1. It can be seen that the hubs of examples 1-3 achieve a reduction in the stress level of the hub with minimal increase in weight by a particular arrangement of the hub shape. This stress drop was not observed in comparative example 1 having no particular shape.
Example 6: static stiffness measurements were made for the hubs of examples 1, 2 and 3 and comparative example 1. The static stiffness measurements were performed in the test center of the medium-grade kayak corporation for the above wheels according to the method of american wheel engineering association's row standard SAEJ 328. The static stiffness represents the resistance of the wheel to deformation when subjected to static forces, the higher the value, the greater the resistance to deformation, and the higher the reliability of the wheel. The test measurement results are shown in table 3.
Table 3: results of measurement of static rigidity of wheels (unit: kNm/rad) of examples 1, 2 and 3 and comparative example 1.
| Example 1 | Example 2 | Example 3 | Comparative example 1 | |
| Static rigidity | 19367.5 | 19300.8 | 19287.4 | 17561.4 |
As can be seen from table 3, examples 1, 2 and 3 all had higher static stiffness values, and comparative example 1 had lower static stiffness values. It is shown that examples 1, 2 and 3 have higher structural stability and higher reliability under the same external force. Comparative example 1 has a low static stiffness value, poor structural stability and low reliability. As can be seen from example 6, in the wheels of examples 1 to 3, while the improvement of the minimum mass (10 g) was achieved, the static rigidity was increased to a greater extent, and the higher mechanical strength was achieved.
Claims (11)
1. An improved automotive aluminum alloy hub having spokes defining a plurality of circular windows, the spokes being positioned between a flange and an outer lip bead seat, the segment of the outer lip surface intersecting a plane passing through the central axis of the flange being defined by an arc E0, an arc E1, an arc E2, an arc E3, an arc E4, an arc E5 and an arc E6 connected in series; the spoke-free anti-theft device is characterized in that the arc line E0 is positioned on one side close to the spoke and is in the shape of an arc sunken towards the direction far away from the flange plate, the radius of the arc line E0 is 1.0-2.0 mm, the arc angle is 70.0-95.0 degrees, and two ends of the arc line E0 are tangent to the upper surface of the spoke and a line segment E1 respectively; the line segment E1 is positioned between the arc lines E2 and E0, is a horizontal line segment, has the length of 2.0-4.0 mm, and the two ends of the line segment E1 are tangent to the arc line E0 and the arc line E2 respectively; the arc line E2 is positioned between the line segment E1 and the arc line E3, is in the shape of an arc which is concave towards the direction of the flange plate, has the radius of 2.0-5.0 mm and the arc angle of 90.0 degrees, and the two ends of the arc line E2 are tangent to the line segment E1 and the line segment E3 respectively; the line segment E3 is positioned between the arc E2 and the arc E4, is a vertical line segment, has the length of 3.0-6.0mm, and the two ends of the line segment E3 are tangent to the arc E2 and the arc E4 respectively; the arc E4 is positioned between the line E3 and the arc E5, is in the shape of an arc which is concave towards the flange plate, has the radius of 5.0-7.0mm and the arc angle of 20.0-35.0 degrees, and the two ends of the arc E4 are tangent to the line E3 and the arc E5 respectively; the arc E5 is positioned between the arc E4 and the arc E6, is in the shape of an arc which is concave towards the direction of the flange plate, has the radius of 10.0-15.0 mm and the arc angle of 30.0-50.0 degrees, and the two ends of the arc E5 are tangent to the arc E4 and the arc E6 respectively; the arc E6 is located between the arc E5 and the outer wheel lip bead seat and is in the shape of a circular arc which is concave towards the direction away from the flange plate, the radius of the arc E6 is 5.0-10.0 mm, the arc angle is 60.0-75.0 degrees, and two ends of the arc E6 are tangent to the arc E5 and the outer surface of the outer wheel lip bead seat respectively.
2. The improved aluminum alloy hub for motor vehicle as claimed in claim 1, wherein said arc E0 is a circular arc concave away from the flange plate and has a radius of 1.4-1.6 mm, and an arc angle of 85.0-95.0 degrees, and the ends of the arc E0 are tangent to the upper surface of the spoke and the segment E1.
3. An improved aluminum alloy motor vehicle hub as set forth in claim 1 in which said line segment E1 is located between arc E2 and E0 and is a horizontal line segment having a length of 2.5-3.5 mm, and the ends of E1 are tangent to arc E0 and arc E2, respectively.
4. The improved aluminum alloy hub for motor vehicles as claimed in claim 1, wherein said arc E2 is located between the line segment E1 and the arc E3, and is a concave arc toward the flange, and has a radius of 3.0-4.0 mm and an arc angle of 90.0 degrees, and the two ends of the arc E2 are tangent to the line segment E1 and the line segment E3, respectively.
5. An improved aluminum alloy motor vehicle hub as set forth in claim 1 in which said line segment E3 is located between arc E2 and arc E4 and is a vertical line segment having a length of 4.2-4.8mm, and the ends of line segment E3 are tangent to arc E2 and arc E4, respectively.
6. The improved aluminum alloy hub for motor vehicles as claimed in claim 1, wherein said arc E4 is between the line segment E3 and the arc E5, and is a concave arc toward the flange, and has a radius of 6.0-6.8 mm and an arc angle of 25.5-30.0 degrees, and the two ends of the arc E4 are tangent to the line segment E3 and the arc E5, respectively.
7. The improved aluminum alloy hub for motor vehicles as claimed in claim 1, wherein said arc E5 is between arc E4 and arc E6, and is a concave arc toward the flange, with a radius of 11.5-13.0 mm and an arc angle of 40.0-48.0 degrees, and the ends of arc E5 are tangent to arc E4 and arc E6, respectively.
8. The improved aluminum alloy motor vehicle hub of claim 1 wherein arc E6 is between arc E5 and the outer lip bead seat and is in the form of a circular arc concave away from the flange with a radius of 7.0-7.8 mm and an arc angle of 60.0-65.0 degrees, and the ends of arc E6 are tangent to arc E5 and the outer surface of the outer lip bead seat, respectively.
9. The improved aluminum alloy motor vehicle hub of claim 1, wherein the arc E0 is a circular arc concave away from the flange with a radius of 1.5 mm and an arc angle of 90.0 degrees; line segment E1 is a horizontal line segment with a length of 3.0 mm; the arc line E2 is a circular arc which is sunken towards the direction of the flange plate, the radius of the arc line E2 is 3.2 mm, and the arc angle is 90 degrees; the line segment E3 is a vertical line segment, and the length of the line segment E3 is 4.6 mm; the arc line E4 is a circular arc sunken towards the direction of the flange plate, the radius of the arc line E4 is 6.4 mm, and the arc angle is 28.4 degrees; the arc line E5 is a circular arc sunken towards the direction of the flange plate, the radius of the arc line E5 is 12.7 mm, and the arc angle is 45.0 degrees; arc E6 is a circular arc depressed in the direction away from the flange, and has a radius of 7.3 mm and an arc angle of 61.8 degrees.
10. The improved aluminum alloy hub for motor vehicles as claimed in claim 1, wherein the arc E0 is a circular arc depressed away from the flange with a radius of 1.6 mm and a circular arc angle of 90 degrees; line segment E1 is a horizontal line segment, with a length of 2.8 mm; the arc line E2 is a circular arc which is sunken towards the direction of the flange plate, the radius of the arc line E2 is 3.3 mm, and the arc angle is 90 degrees; the line segment E3 is a vertical line segment with a length of 4.5 mm; the arc E4 is a circular arc sunken towards the direction of the flange plate, the radius of the arc E4 is 7.0mm, and the arc angle is 29.9 degrees; the arc line E5 is a circular arc sunken towards the direction of the flange plate, the radius of the arc line E5 is 11.6 mm, and the arc angle is 43.4 degrees; arc E6 is a circular arc depressed in the direction away from the flange, and has a radius of 7.3 mm and an arc angle of 61.8 degrees.
11. The improved aluminum alloy motor vehicle hub of claim 1, wherein the arc E0 is a circular arc concave away from the flange with a radius of 1.8 mm and an arc angle of 76.9 degrees; line segment E1 is a horizontal line segment, with a length of 2.8 mm; the arc line E2 is a circular arc which is sunken towards the direction of the flange plate, the radius of the arc line E2 is 3.0mm, and the arc angle is 90 degrees; the line segment E3 is a vertical line segment with a length of 4.8 mm; the arc line E4 is a circular arc sunken towards the direction of the flange plate, the radius of the arc line E4 is 5.0 mm, and the arc angle is 24.5 degrees; the arc line E5 is a circular arc sunken towards the direction of the flange plate, the radius of the arc line E5 is 11.5 mm, and the arc angle is 43.4 degrees; arc E6 is a circular arc depressed in the direction away from the flange, and has a radius of 7.3 mm and an arc angle of 61.8 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911376854.9A CN110949060B (en) | 2019-12-27 | Improved motor vehicle aluminium alloy hub |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911376854.9A CN110949060B (en) | 2019-12-27 | Improved motor vehicle aluminium alloy hub |
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| CN110949060A true CN110949060A (en) | 2020-04-03 |
| CN110949060B CN110949060B (en) | 2024-07-26 |
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