CN1282682A

CN1282682A - Wheel with rigid liner

Info

Publication number: CN1282682A
Application number: CN 99125739
Authority: CN
Inventors: 崔世泰
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-07-28
Filing date: 1999-12-23
Publication date: 2001-02-07

Abstract

A wheel is composed of circular rim, annular steel liner with relatively high bending rigidity and steel or rubber springs between said rib and steel liner and used to replace existing internal tube. Its advantages is very high buffer performance as the external force is dispersed by steel liner.

Description

Band is the wheel of lining just

This patent relates to wheel, especially the wheel that relates to of application number 97106689.2 patents.

Usually exempt to inflate wheel assembling band tyre, because ground connection position stressed (normal force tractive force) is bigger, thereby the living heat of tire hysteresis is big, and energy consumption is big.

This patent purpose provides energy consumption little product.

This purpose reaches like this, and annular lining is just arranged in the tyre surface inboard, and normally solid-state steel thin wall member has than macrobending rigidity.Just lining will be passed to helical steel springs or the rubber spring that serves as the elastic body inner tube of a tyre again after the external force uniformization that be subjected to, thereby inner tube of a tyre range of stress reduces, and lags behind to give birth to heat and reduce.

This patent concrete structure is provided by the following drawings and example.Fig. 1, steel spring inner tube of a tyre wheel A-A section (referring to Fig. 2).Fig. 2, the wheel schematic side view of a circumferential uniform m=4 spring.Fig. 3 derives with figure.Fig. 4 is used for air-inflation tyre and makes Runflat.Fig. 5, circumferentially uniform four steel springs of spiral shell shape.Fig. 6, the inner tube of a tyre are the rubber spring sections.Fig. 7 inner tube of a tyre is a rubber spring, is divided into the n=2 part.Fig. 8, the foaming of rubber inner tube 3.

Fig. 2 wheel comprises wheel rim 2, has just served as a contrast 4, the spring inner tire 3 between the two, its A-A section such as Fig. 1. support ring is by bolt 13 nuts 14 about the spring, profile gasket is to 11, and 11 ' un-rotatably (or rotatable, or one can not one rotatable) be fixed on wheel rim and just on the areal of support of lining.Can be subjected to tension and compression or can only pressurized.Wheel rim is removable, comprises with bolt 13 nuts 14 bonded assembly wheel rim 2 and baffle plates 2 '.Rubber tread 5 serves as a contrast 4 outsides just, and the connection of the two can be used the assembly method of band tyre on wheel rim in the prior art.This principle also can be used for the castor antidetonation and is arranged on making it Runflat (Fig. 4) in the air-inflation tyre.Be to calculate below.Suppose just to serve as a contrast absolute rigid body, wheel is subjected to normal force Q, and horizontal force Fx=Q φ, φ traction coefficient, Q are k times of rated load, and k is a safety factor.Just be lined with normal direction displacement h, horizontal displacement htg γ, corner β.Put and consider coordinate system Z0Y, Z and normal direction folder γ angle.Fig. 3, spring terminal has longitudinal travel h '=h/cos γ at angle α place) cos α, radial displacement h "=R β+(h/cos γ) sin α, R is that spring is an effective radius, according to the spring handbook, spring axial stiffness F '=Gd ⁴/ (8D ³N), G modulus of shearing, d spring filament diameter.Footpath among the D, the n number of active coils; Radial rigidity F ' _r=C ^-1F ', C are that the diameter of axle is to ratio of rigidity.Thereby spring terminal is subjected to axial force F ' h,, diametral load F ' _rH ", moment of flexure 0.5F ' _rH " (H-h '), wherein factor C ^-1At α ∈ (α ₀, α ₀), α ₀=arccos is 0 when (Hcos γ/(bh)), and expression is unstability radially, and radial rigidity is zero, at α ∈ (α ₀, 2 π-α ₀) time be a ^-1(1-bhcos α/(Hcos γ)), radially unstability not. a=0.295 (H/D) wherein ²+ 0.384, b={1.3[(1+4.29 (D/H) ²) ^0.5-1]) } ^-1, make r=2 π/m, α _i=α+ir, i=0,1...m-1 uses α _iReplace the α in various, measure additional subscript i accordingly, as h ' _i=(h/cos γ) cos α _i, h " _i=R β+(h/cos γ) sin α _iObtain the power of each action of the spring on just lining, these power and external force Q, φ Q balance, more numerous because of finding the solution of partial spring unstability, for ease of calculating, suppose all unstabilitys not of all springs, discriminant α is promptly arranged ₀=0 or bh＜Hcos γ, last result of calculation is truly and separates if satisfies discriminant.Represent A with ∑ below ₀+ A ₁+ ...+A _M-1, list getting square 0 ' o'clock, to Z, the Y direction is got the equation of making a concerted effort, when m has for greater than 3 integer the time: φ QR=∑ C _i ^-1F ' h _i" (R-0.5 (Hh ' _i))=ma ^-1F ' R β [R-0.5H-0.5bH ^-1(h/cos γ) ²] ... (1); Qcos γ+φ Qsin γ=∑ (F ' h ' _iCos α _i+ c ₁ ^-1F ' h " _iSin α _i)=0.5 (1+a ^-1) mF ' h/cos γ ... (2);-Qsin γ+φ Qcos γ=∑ (C ^-1 _iF ' h " _iCos α _i-F ' h ' _iSin α; ) ,=-0.5a ^-1F ' mR β b (h/Hcos γ) ... (3);

The no α in three formulas the right occurs, and illustrate that not centrosymmetric m spring make the distortion r that the inner tube of a tyre 3 produces, and h, β and α are irrelevant, is equal in that wheel rim 2 is firm to serve as a contrast the distortion that the even centrosymmetric elastic body of continuous distribution one deck (as Fig. 6, rubber) between 4 is done the inner tube of a tyre 3 generations.

The steel spring axis can not crossed center 0 ' and cry star distribution (Fig. 2, m=4 the coil spring that star distributes) when loading, or only spiral shell shape distribution (Fig. 5) is named at center 0 '.The connection of both ends of the spring on areal of support 12 can cannot not be rotatable, or rotating, as long as different a, the b expression formulas of substitution.Plate washer 2 ' among Fig. 1 can not wanted yet.

Fig. 6, the inner tube of a tyre 3 are circumferentially continuous rubber springs 3 of center symmetry, and be bonding or be embedded between firm lining 4 groove and wheel rim 2 groove outwardly inwardly.Groove leads as distortion, thereby darker.The inner tube of a tyre 3 outsides (Fig. 1) or inner (Fig. 6) have longitudinal slot 8 ammunition feed springs compression back lateral expansion.

The inner tube of a tyre 3 can have with tyre surface 5 and equates, or littler width.Tyre surface 5 is arranged in firm lining 4 groove outwardly.Just can gapped 7 (Fig. 6) or overlapping 6 (Fig. 1 have made the distortion guiding, increases lateral rigidity) between lining 4 and the wheel rim 2.Fig. 7,8 wheel rims 2 are existing inflation wheel rims, and steel lining 4 has the smooth end 15, and tyre surface 5 wraps on the guiding principle lining 4.Fig. 7 rubber inner tube 3 is divided into Integer n=2 parts, Fig. 8, the foaming of rubber inner tube 3,

Claims

1, a kind of wheel structure comprises the elastic body inner tube of a tyre, and wheel rim is characterized in that also including the firm lining than macrobending rigidity, and the inner tube of a tyre is between firm lining and wheel rim, and external force is through just acting on the inner tube of a tyre after the lining uniformization.

2, wheel structure according to claim 1 is characterized in that, just can gapped (7) or overlapping (6) between lining (4) and the wheel rim (2),

3, wheel structure according to claim 1 is characterized in that there is longitudinal slot (8) inner tube of a tyre (3) outside or inside.

4, wheel structure according to claim 1 is characterized in that tyre surface (5) is arranged in firm lining (4) groove outwardly, or wraps on the guiding principle lining 4.

5, according to claim 1,2,3 or 4 described wheel structures, it is characterized in that the inner tube of a tyre is the steel coil spring that integer m＞3 star or spiral shell shape distribute, two support rings of spring are rotatable, or one rotatable one rotatable, or two all un-rotatably with wheel rim just lining link to each other.

6, wheel structure according to claim 5 is characterized in that this structure is used for airtyred Runflat.

7, according to claim 2,1,4 or 3 described wheel structures, it is characterized in that the inner tube of a tyre (3) is a circumferentially continuous rubber spring (3) of center symmetry, bonding or be embedded between firm lining (4) groove and wheel rim (2) groove outwardly inwardly, have with tyre surface (5) and equate, or littler width, being divided into an Integer n part, is foaming or non-foaming; Just lining (4) has the end (15) of general planar.