RU2270761C1 - Vehicle wheel - Google Patents

Abstract

FIELD: transport engineering; vehicle wheels.

SUBSTANCE: proposed wheel has rim with front and rear flanges, central hub with wheel attachment members and disk part with spokes connecting rim with hub. Spokes are divided by through ports changing in its peripheral zone into cavities on rim from front side of wheel. Front flange from front side of wheel is limited by sections of two convex toroidal surfaces and convex conical surface tangential to toroidal surfaces. Said flange is limited by first of said toroidal surfaces in zone of maximum diametral sizes of wheel, and by second one, in zone of its mating with rim. In zone of mating of rim with disk part, the latter is limited from front side of wheel by section of concave toroidal surface tangential to second one of said toroidal surfaces.

EFFECT: improved manufacturability of wheel.

4 cl, 2 dwg

Description

The invention relates to vehicles, mainly to the construction of forged easily alloy wheels of automobiles.

It is known a car wheel made of steel by pressure treatment of sheet blanks and subsequent welding (Balabin I.V. Automotive wheels. Sp. M .: Mechanical Engineering, 1985, p. 91).

A disadvantage of the known wheel is the large mass, which affects the operational properties of the suspension of the car.

A vehicle wheel is known comprising a rim with front and rear flanges, a central hub with wheel mounting elements, and a disk portion connecting the rim to the hub with through windows passing in its peripheral zone into recesses on the rim from the front of the wheel (Useful pages. Collection. M. Publishing House CJSC Useful Pages, No. 9, 2001, pp. 242-243 - prototype).

A disadvantage of the known wheel is the need for a large number when machining wheel blanks on metal cutting machines.

Highly qualified staff and high labor costs are required.

A vehicle wheel is proposed comprising a rim with front and rear flanges, a central hub with wheel mounting elements, and a disk portion connecting the rim to the hub with through windows passing in its peripheral zone into recesses on the rim from the front of the wheel. On the front side of the wheel, the front flange is bounded by sections of two convex toroidal surfaces and a convex conical surface tangent to them. The first of the mentioned toroidal surfaces, this flange is limited in the zone of maximum diametrical dimensions of the wheel, and the second in the zone of its articulation with the rim. In the zone of articulation of the rim with the disk part, the latter on the front side of the wheel is bounded by a portion of a concave toroidal surface tangent to the second of the said toroidal surfaces. Said recesses may be bounded by a flat bottom perpendicular to the axis of the wheel, and the centers of the generatrix of the second of said toroidal surfaces are located in a plane perpendicular to the axis of the wheel tangent to the rear surface of the front flange. The centers of the generators of the said concave toroidal surface are located in a plane perpendicular to the axis of the wheel and remote from the bottom of the said recesses to its front by a distance q defined by the relation:

q = (0.9 ÷ 1.4) · C,

where C is the distance along the axis of the wheel from its frontal overall surface to the bottom of these recesses, while the bottom of this toroidal surface from the bottom of these recesses is placed at a distance m, defined by the ratio:

(C-b ₁ ) ≥m≥0,

where b ₁ is the maximum thickness of the front flange.

The geometric dimensions of the mentioned toroidal surfaces can be related by the relations:

R ₁ <R ₂ <R ₃ ,

where R ₁ and R ₂ are respectively the radii of the generators of the first and second mentioned convex toroidal surfaces;

R ₃ is the radius of the generatrix of said concave toroidal surface.

The proposed wheel differs from the prototype in that on the front side of the wheel, the front flange is limited by sections of two convex toroidal surfaces and a convex conical surface tangent to them. The first of the mentioned toroidal surfaces, this flange is limited in the zone of maximum diametrical dimensions of the wheel, and the second in the zone of its articulation with the rim. In the zone of articulation of the rim with the disk part, the latter on the front side of the wheel is bounded by a portion of a concave toroidal surface tangent to the second of the said toroidal surfaces.

The said recesses may be bounded by a flat bottom perpendicular to the axis of the wheel, and the centers of the second of the said toroidal surfaces forming are perpendicular to the wheel axis of the plane tangent to the rear surface of the front flange, the centers of the forming of the concave surface are located in a plane perpendicular to the wheel axis and remote from the bottom of the mentioned surfaces to its front at a distance q defined by the relation:

q = (0.9 ÷ 1.4) · C,

where C is the distance along the axis of the wheel from its frontal overall surface to the bottom of these recesses, while the bottom of this toroidal surface from the bottom of these recesses is placed at a distance m, defined by the ratio:

(C-b ₁ ) ≥m≥0,

where b ₁ is the maximum thickness of the front flange.

The geometric dimensions of the mentioned toroidal surfaces can be related by the relations:

R ₁ <R ₂ <R ₃ ,

where R ₁ and R ₂ are respectively the radii of the generators of the first and second mentioned convex toroidal surfaces;

R ₃ is the radius of the generatrix of said concave toroidal surface.

The technical result is an increase in the manufacturability of the design.

The invention is illustrated by drawings, where

figure 1 shows a wheel in section;

figure 2 is a view of I in figure 1.

The wheel contains a rim 1 with flanges: front 2 and rear 3. The wheel fastening elements 4 are located on the central hub 5. The rim 1 with the hub 5 is connected by a disk part 6 with spokes 7 separated by through windows 8. The latter pass into the recesses 10 in the peripheral zone 9 on rim 1 from the front of the wheel.

On the front side of the wheel, the front flange 2 is bounded by sections of two convex toroidal surfaces 11 with a radius of the generatrix R ₁ and 12 with the radius of the generatrix of R ₂ , and also a tangent to these surfaces of the convex conical surface 13 with a taper angle β °. The surface 11 of the flange 2 is limited in the zone of the maximum diametrical dimensions of the wheel, determined by the diameter Dar., And the surface 12 is in the zone of articulation of the flange with the rim 1. In the zone of articulation of the rim 1 with the disk part 6, the last one on the front side of the wheel is limited by a portion of the concave toroidal surface 14, tangent to the surface 12. The dimensions of the surface 14 are determined by the radius of the generatrix R ₃ .

The centers of the generators with a radius R _{2 of the} surface 12 can be located in a plane perpendicular to the axis of the wheel tangential to the rear surface 15 of the flange 2. The recesses 10 can be limited to a flat bottom 16, perpendicular to the axis of the wheel. The centers of the forming R ₃ surface 14 are located in a plane perpendicular to the axis of the wheel and remote from the bottom 16 to its front by a distance q, defined by the ratio:

q = (0.9 ÷ 1.4) · C,

where C is the distance of the wheel axis from its frontal overall surface 17 to the bottom 16 of the recesses 10.

The bottom part 18 of the surface 14 from the bottom 16 of the recesses 10 is located at a distance m, defined by the ratio:

(Cb ₁ ) ≥m≥0,

where b ₁ - the maximum thickness of the flange 2.

The geometric dimensions of these toroidal surfaces are related by the relations

R ₁ <R ₂ <R ₃

The minimum flange thickness 2 is determined by size b.

The rear surface 15 of the flange 2 is made in the form of sections of the surfaces of a convex toroid 19 with a radius of R ₄ and a concave toroid 20 tangent to one another. The surface of the toroid 20 is tangent to the conical portion 21, defined by an angle of γ ° bounding the surface of the rim part 1 adjacent to the rim 2. The surface of the convex toroid 22 with the radius of the generatrix R ₅ forms a hump 23 with an outer diameter D.

The rim part 24 adjacent to the hump 23 is bounded by a conical surface 25, the generators of which form an angle α ° with a plane perpendicular to the axis of the wheel.

EXAMPLE OF IMPLEMENTATION.

From aluminum alloy of type 6061, samples of sports wheels 12 × 18 "with the design dimensions were designed and manufactured:

Dp = 497 mm

D = 462 mm (18 ")

b = 9 mm

β ° = 9 °

b ₁ = 11.28 mm

C = 37.78 mm

m = 22.78; (m <Cb ₁ = 26.5 mm)

R ₁ = 2 mm

R ₂ = 11.28

R ₃ = 30 mm

q = 52.78; (q = 1.347C)

In addition, the structural dimensions associated with the seating surfaces for tires were adopted in accordance with applicable standards:

α ° = 20 °;

γ ° = 5 °;

R ₄ = 9.7 mm;

R ₅ = 8 mm.

Thus, the proposed design of the wheel allows you to make it more technological, and therefore more economical. These considerations are especially relevant in the manufacture of sports car wheels in batches within the framework of the concept of "flexible" production.

Claims (4)

1. A vehicle wheel comprising a rim with front and rear flanges, a central hub with wheel fasteners, and a disk part connecting the rim to the hub with spokes separated by through windows passing in its peripheral zone into recesses on the rim from the front of the wheel, characterized in that on the front side of the wheel, the front flange is bounded by sections of two convex toroidal surfaces and a tangent convex conical surface to them, while the first of these toroidal of the surfaces, this flange is limited in the zone of maximum diametrical dimensions of the wheel, and the second in the zone of its articulation is with the rim, and in the zone of articulation of the rim with the disk part, the last one on the front side of the wheel is limited by a section of a concave toroidal surface tangent to the second of the mentioned toroidal surfaces. 2. The wheel according to claim 1, characterized in that the centers forming the second of the said toroidal surfaces are located in a plane perpendicular to the axis of the wheel tangent to the rear surface of the front flange. 3. The wheel according to claim 2, characterized in that said recesses are limited by a flat bottom perpendicular to the axis of the wheel, and the centers of the generators of said concave toroidal surface are located in a plane perpendicular to the axis of the wheel and remote from the bottom of said recesses to its front at a distance q the ratio q = (09 ÷ 1.4) C, where C is the distance along the axis of the wheel from its frontal overall surface to the bottom of these recesses, the bottom part of this toroidal surface from the bottom of these recesses is placed at a distance m, defined by the ratio: (Cb ₁ ) ≥m≥0, where b ₁ is the maximum thickness of the front flange. 4. The wheel according to claim 1, characterized in that the geometric dimensions of said toroidal surfaces are related by the relations R ₁ <R ₂ <R ₃ , where R ₁ and R ₂ are respectively the radii of the generators of the first and second mentioned convex toroidal surfaces; R ₃ is the radius of the generatrix of said concave toroidal surface.

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