Tubeless tire bead of novel engineering machinery radial tire
By designing a new type of tubeless bead for radial tires used in engineering machinery, and adopting a bead structure with a specific curve design, the problems of difficult tire installation and early damage have been solved, the fit and friction between the tire and the rim have been improved, and the service life has been extended.
Patent Information
- Application Number
- CN202422809151.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-11-18
AI Technical Summary
The tubeless tires on existing construction machinery are prone to problems during assembly, such as difficulty in installation and improper installation. Long-term use can easily lead to problems such as bulging, cracking, and bursting of the tire, affecting driving safety.
A novel tubeless bead for radial tires used in engineering machinery is designed, employing a bead structure with a specific curve design, including the bead opening contour curve, the heel arc, and the bead side arc, to ensure a tight fit between the tire and the rim, increasing friction to prevent air leakage and slippage.
The improved bead structure solves the problem of improper assembly, improves the fit and friction between the tire and the rim, extends the tire's service life, and prevents air leakage and slippage.
Smart Images
Figure CN223559418U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a tire structure technical field, concretely is a new type engineering machinery radial tire tubeless tire bead. BACKGROUND
[0002] Engineering machinery often appears the phenomenon of overloading, frequent braking and turning in the actual use process because of the bad use environment. The bead is the part of the tire and the rim contact, and is the main part of bearing load, so the engineering machinery has higher performance requirements for the bead. But the existing engineering machinery tire tubeless bead sub-port curve adopts two section design angle, and the heel arc generally adopts standard rim heel arc R. In the actual installation process of the rim, the problems of difficult tire installation and off-position tire installation often appear, and the problems of early bead bulging, bead cracking, wire drawing and explosion are easily caused in the long-term operation in the bad environment, which seriously affects the driving safety. CONTENT OF THE UTILITY MODEL
[0003] (I) technical problem solved
[0004] In view of the deficiency of prior art, the utility model provides a new type engineering machinery radial tire tubeless bead, which solves the above technical problems.
[0005] (II) technical scheme
[0006] In order to achieve the above object, the utility model provides the following technical scheme: a new type engineering machinery radial tire tubeless bead, comprising a tire and a bead, the bead profile is composed of a tire bead sub-port profile curve, a heel arc and a bead side arc, one end of the heel arc is connected to the bead side arc, the other end of the heel arc is connected to the tire bead sub-port profile curve, the inner diameter D2 of the steel wire ring of the tire = the rim diameter D + the wrapping thickness B + the tire body thickness T + (2-4) mm.
[0007] Preferably, the radius of the heel arc = 10-15 mm and is greater than or equal to the rim heel arc radius R, and the heel arc is tangent to the sub-port platform curve and the bead side arc curve.
[0008] Preferably, the maximum distance between the heel arc and the horizontal line is the tire bead joint diameter D1.
[0009] Preferably, the tire bead sub-port profile curve is the joint curve of the tire bead sub-port and the rim, and the angle between the tire bead sub-port profile curve and the horizontal line is 5-7 °.
[0010] Preferably, the bead joint diameter D1 = the rim diameter D-3-5 mm.
[0011] Preferably, the end of the tire bead sub-port profile curve away from the heel arc is vertically chamfered downward, and the chamfer radius is 1-2 mm.
[0012] Compared with the prior art, the novel engineering machinery radial tire tubeless bead has the following beneficial effects:
[0013] 1、The tire bead sub-port outline curve, the heel arc and the bead side arc are arranged, the bead structure is improved, the tire can be more closely attached to the rim, the assembly out-of-position problem is eliminated, the friction between the bead and the rim is ensured, air leakage and slipping in daily use of the tire are prevented, and the service life of the tire bead is prolonged. BRIEF DESCRIPTION OF DRAWINGS
[0014] Fig. 1 It is a full-bevel rim structure schematic view of the utility model;
[0015] Fig. 2 It is a conventional tire tubeless tire bead structure schematic view of the utility model;
[0016] Fig. 3 It is a tubeless tire bead structure schematic view of the utility model.
[0017] 1, tire bead sub-port outline curve; 2, heel arc; 3, bead side arc. DETAILED DESCRIPTION
[0018] The embodiments of the utility model will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.
[0019] In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0020] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the term '' connection '' should be understood in a broad sense, for example, it can be fixed connection, also can be detachable connection, or integrally connected, it can be mechanical connection, also can be electrical connection, it can be directly connected, also can be indirectly connected through intermediate medium.
[0021] Please refer to Figs. 1-3 A new type of engineering machinery radial tire tubeless bead, including tire and bead, the bead profile is composed of tire bead suboutlet profile curve 1, heel arc 2 and bead side arc 3, one end of heel arc 2 is connected to bead side arc 3, the other end of heel arc 2 is connected to tire bead suboutlet profile curve 1, the inner diameter of the tire bead D2=tire rim diameter D+wrap thickness B+tire body thickness T+(2-4)mm.
[0022] By setting the tire bead suboutlet profile curve 1, heel arc 2 and bead side arc 3, the structure of the bead is improved, so that the tire can be more closely fitted with the rim, thereby eliminating the problem of assembly out of place, while ensuring the friction between the bead and the rim, preventing tire leakage and slip in daily use, thereby improving the service life of the tire bead.
[0023] Specifically, in the embodiment, the radius of heel arc 2=10-15mm and ≥ rim heel arc 2 radius R, heel arc 2 is tangent to suboutlet platform curve and bead side arc 3 curve, since the radius of heel arc 2 is greater than or equal to the radius of rim heel arc 2, the tire bead can be better connected with the rim, facilitating assembly while improving the fit between the tire and the rim.
[0024] Specifically, in the embodiment, the maximum distance between heel arc 2 and the horizontal line is the tire bead fitting diameter D1.
[0025] Specifically, in the embodiment, the tire bead suboutlet profile curve 1 is the fitting curve of the tire bead suboutlet and the rim, and the angle between the tire bead suboutlet profile curve 1 and the horizontal line is 5-7°.
[0026] Specifically, in the embodiment, the tire bead fitting diameter D1=tire rim diameter D-3-5mm, which can well ensure the friction between the bead and the rim, prevent tire leakage and slip in daily use.
[0027] Specifically, in the embodiment, the end of tire bead suboutlet profile curve 1 away from heel arc 2 is vertically downward chamfered, and the chamfer radius is 1-2mm.
[0028] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A new type of off-the-road radial tire tubeless bead comprising a tire and a bead, characterized in that: The bead contour is composed of a tire bead sub-contour curve, a heel arc and a bead side arc, one end of the heel arc is connected to the bead side arc, the other end of the heel arc is connected to the tire bead sub-contour curve, the inner diameter D2 of the steel bead of the tire is equal to the rim diameter D plus the thickness B of the cover plus the thickness T of the tire body plus (2-4) mm.
2. A new type of off-the-road radial tire bead for engineering vehicles according to claim 1, characterized in that: The radius of the heel arc is equal to 10-15 mm and greater than the radius R of the rim heel arc, the heel arc is tangent to the sub-contour curve and the bead side arc curve.
3. A new type of off-the-road radial tire bead for construction machines without inner tube according to claim 1, characterized in that: The maximum distance between the heel arc and the horizontal line is the tire bead engagement diameter D1.
4. A new type of off-the-road radial tire bead for construction machines according to claim 1, characterized in that: The tire bead sub-contour curve is the engagement curve of the tire bead sub-contour and the rim, the angle between the tire bead sub-contour curve and the horizontal line is 5-7°.
5. A new type of off-the-road radial tire bead for construction machines according to claim 1, characterized in that: The tire bead engagement diameter D1 is equal to the rim diameter D minus 3-5 mm.
6. A new type of off-the-road radial tire for heavy duty vehicles according to claim 1, characterized in that: The end of the tire bead sub-contour curve away from the heel arc is vertically downwardly chamfered, and the chamfer radius is 1-2 mm.