CN213228183U

CN213228183U - Engineering solid tire and rim assembly

Info

Publication number: CN213228183U
Application number: CN202021098756.1U
Authority: CN
Inventors: 程莉; 陈润升; 周杰
Original assignee: Sailun Jinyu Group Co Ltd
Current assignee: Sailun Jinyu Group Co Ltd
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2021-05-18
Anticipated expiration: 2030-06-15

Abstract

The utility model discloses an engineering solid tyre and rim assembly. A first inflection point and a second inflection point are arranged at a broken line from a bead heel to a bead toe section of the tire, a first inflection point and a second inflection point are correspondingly arranged at a broken line between a bead seat and an assembling groove of a rim, a first steel wire ring and a second steel wire ring are arranged in the bead, the horizontal distance F from a center point of the first steel wire ring to a rim of the tire is 12mm longer than the distance E between the center point of the first steel wire ring and the center point of the second steel wire ring, and the horizontal distance F from the center point of the first steel wire ring to the rim of the tire, the center point of the first steel wire ring and the second steel wire ring are arranged between the center point of the first steel wire ring andthe sum of the distances E between the centre points of the wire loops is equal to the horizontal distance C from the first inflection point of the rim to the rim of the rim₁A horizontal distance B from a first inflection point and a second inflection point of the rim₁And (4) summing. The engineering solid tire and the rim assembly can prolong the service life of the tire and ensure the safety of the tire.

Description

Engineering solid tire and rim assembly

Technical Field

The utility model relates to an engineering solid tyre and rim assembly.

Background

The engineering solid tire is mainly applied to engineering vehicles, such as low-speed and high-load vehicles, such as mine cars, underground vehicles, field vehicles and the like. Due to the fact that the use environment is severe, the engineering solid tire is frequently twisted and moved, and the tire bead of the engineering solid tire is easy to slip with the rim; the slippage between the engineering solid tire and the wheel rim can cause the abrasion of the solid tire, the noise and other adverse effects, and simultaneously, the stability of the vehicle is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the engineering solid tyre bead and rim produce easily and slide among the prior art, the utility model provides an engineering solid tyre and rim assembly.

In order to solve the technical problem, the utility model discloses a following technical scheme:

an engineering solid tire and rim assembly comprises a solid tire and a rim, wherein a bead is arranged in the tire, the bead is in interference fit with a landing surface of the rim, and the shape of the bead is matched with that of the rim; the tire bead is provided with a first inflection point and a second inflection point at a broken line from a bead heel to a bead toe section, a first inflection point and a second inflection point are correspondingly arranged at a broken line between a bead seat and an assembly groove of the rim, a first bead ring and a second bead ring are arranged in the tire bead, the horizontal distance F from the center point of the first bead ring to the rim of the tire is 12mm longer than the distance E between the center point of the first bead ring and the center point of the second bead ring, and the sum of the horizontal distance F from the center point of the first bead ring to the rim of the tire and the distance E between the center point of the first bead ring and the center point of the second bead ring is equal to the horizontal distance C from the first inflection point of the rim to the rim of the rim₁A horizontal distance B from a first inflection point and a second inflection point of the rim₁And (4) summing.

In consideration of the poor fastening force of the solid bead part of the existing engineering tire, the bead is internally provided with a four-bead ring structure, and through the parameter setting of the bead ring, the first inflection point and the second inflection point parameter setting of the rim and the bead broken line, the four-bead ring structure, the bead ring position and the two turning points at the special line can make the constraint force of the bead stronger, make the gripping force of the bead to the rim stronger and greatly reduce the slippage of the tire.

The included angle a between the rim bead seat and the horizontal plane₁Equal to the included angle a between the horizontal plane and the straight line extending from the bead heel to the bead toe₂Equal, the included angle beta between the horizontal plane and the straight line extending from the first inflection point of the rim to the second inflection point of the rim₁An angle beta between a line equal to the first point of inflection of the bead extending to the second point of inflection thereof and the horizontal plane₂(ii) a The arrangement can ensure that the engineering solid tire is stressed uniformly at the position from the second inflection point of the tire bead part to the center line of the tire, the position from the second inflection point of the tire bead part to the first inflection point and the position from the first inflection point of the tire bead part to the edge part of the tire, and has no concentrated force distribution.

The tire bead is in interference fit with the rim contact surface, specifically, the horizontal distance A from the starting point to the central point of the bottom of the rim assembly groove₁Is equal to the horizontal distance A from the second inflection point of the bead to the center line of the tire₂A horizontal distance B between the first inflection point and the second inflection point of the rim₁A horizontal spacing B equal to the first inflection point and the second inflection point of the bead₂(ii) a The diameter d of the bottom of the tire₁With said rim mounting groove diameter D₁Interference fit is carried out, and the interference magnitude is 15 mm; the bead engaging diameter d₂Diameter D of the wheel rim₂Interference fit is carried out, and the interference magnitude is 11 mm; a horizontal distance C from a first inflection point of the rim to a rim of the rim₁Increasing an interference of 9.7mm and a horizontal distance C from the bead first bead ring center point to the tire rim₂And (4) interference fit. The tire bead and the surface of the rim are fully contacted through the arrangement, the tight combination is ensured, and the contact pressure of the tire bead is increased on the basis of ensuring the uniform stress of all the positions.

Considering that the outer contour of the tyre at the position of the tyre rim, the height H of which is similar to the outer contour of the rim in order to compensate the interference fit between the rim and the tyre, does not cause the problem that the interference fit causes the rim to wear the tyre₂Height H from the rim flange₁The relationship between is H₂＝1.7H₁Radius of curvature R of arc surface at rim of said tire₂Curvature R of arc surface at rim edge of wheel rim₁The relationship between is R₂＝0.5R₁。

Compared with the prior art, the utility model provides a pair of engineering solid tyre and rim assembly, through to steel wire winding quantity and distribution, interference fit and parameter setting between rim and the tire, and inflection point position setting etc, make engineering solid tyre basal portion atress even, there is not concentrated power distribution, guarantee engineering solid tyre and rim surface full contact simultaneously, the inseparable assurance that combines more, the contact pressure of tire bead has been increased, increase engineering solid tyre circle portion fastening force, make the tire bead restraint power stronger, make the tire bead stronger to the occlusal force of rim, greatly reduced the slippage of tire, still can compensate the interference fit between rim and the tire, and can not lead to interference fit and the problem of rim wearing and tearing tire appears. According to the technical scheme provided by the utility model, the utility model provides an engineering solid tyre and rim assembly can reduce sliding of tire, reduces rim wearing and tearing, improves tire life, guarantees the tire security.

Drawings

Fig. 1 is a schematic structural view of a rim portion provided by the present invention;

FIG. 2 is a schematic view of a part of the engineering solid tire provided by the present invention;

fig. 3 is a schematic view of the installation and use states of the engineering solid tire and the rim provided by the present invention.

Detailed Description

The utility model aims at providing an engineering solid tyre and rim assembly to solve the engineering solid tyre bead that prior art exists and produce the technical problem who slides easily with the rim.

In order to enable those skilled in the art to better understand the present invention, the following detailed description of the invention is provided in conjunction with the accompanying drawings.

Fig. 1-3 show a preferred embodiment of the present invention, as shown, the rim 1 includes a two-end rim flange 11, a two-end rim bead seat 12 and a rim fitting groove portion 13, the bead 2 profile of the tire includes a two-end tire flange 21, a two-end bead heel-to-bead toe arc 22 and a tire bottom portion 23, and the shape of the bead 2 is matched with the shape of the rim 1.

In a preferred embodiment, an engineering solid tyre and rim assembly comprises a solid tyre 3 and a rim 1, wherein a tyre bead 2 is arranged inside the tyre 3, the tyre bead 2 is in interference fit with a bonding surface of the rim 1, a first inflection point 24 and a second inflection point 25 are arranged at a broken line of the section of the tyre bead 2 from a tyre heel to a tyre toe arc 22, a first inflection point 14 and a second inflection point 15 are correspondingly arranged at a broken line between a tyre bead seat 12 and a mounting groove 13 of the rim 1, a first steel wire ring 26 and a second steel wire ring 27 are arranged in the tyre bead 2, a horizontal distance F from a central point of the first steel wire ring 26 to a tyre rim 21 is 12mm longer than a distance E between the central point of the first steel wire ring 26 and a central point of the second steel wire ring 27, namely F +12mm, and the sum of the horizontal distance F from the central point of the first steel wire ring 26 to the tyre rim 21 and the distance E between the central point of the first steel wire ring 26 and the central point of the second steel wire ring 27 is equal to the central point of the rim Horizontal distance C from first point of inflection 14 to rim flange 11₁A horizontal distance B from the rim first inflection point 14 and the rim second inflection point 15₁Sum, i.e. E + F ═ C₁+B₁。

In another preferred embodiment, the angle a between the rim bead seat 12 and the horizontal plane₁Equal to the angle a between the horizontal plane and the line extending from the bead heel to the bead toe of the bead 2₂Equally, the angle β 1 between the horizontal and the line extending from the first point of inflection 14 to the second point of inflection 15 of the rim is equal to the angle β 2 between the horizontal and the line extending from the first point of inflection 24 to the second point of inflection 25 of the bead, a₂＝a₁，β₂＝β₁。

In another specific embodiment, the horizontal distance A from the starting point of the bottom of the rim mounting groove 13 to the central point thereof₁Equal to the horizontal distance A from the second inflection point 25 of the bead to the center line of the tire₂Horizontal spacing B between first inflection point 14 and second inflection point 15 of the rim₁A horizontal spacing B equal to the first inflection point 24 and the second inflection point 25 of the bead₂I.e. A₂＝A₁，B₂＝B₁(ii) a The bead is in interference fit with the rim seating surface, in particular, the tire bottom 23 diameter d₁Diameter D of the wheel rim assembly groove 13₁Interference fit is carried out, and the interference magnitude is 15 mm; the tire bead engaging diameter D2 is in interference fit with the wheel rim nominal diameter D2, and the interference is 11mm, namely D₁＝D₁+15mm，d₂＝D₂+11 mm; horizontal distance C from first inflection point 14 of the rim to rim flange 11₁Increasing the interference of 9.7mm and the horizontal distance C from the center point of the first bead wire ring 26 to the tire rim 21₂Interference fit, C₂＝C₁+9.7mm。

In a particular embodiment, the height H of the tyre rim 21₂Height H from said rim flange 11₁The relationship between is H₂＝1.7H₁Radius of curvature of arc R at the tyre rim 21₂With the curvature R of the arc surface at the rim flange 11₁The relationship between is R₂＝0.5R₁。

It is right above the utility model provides an engineering solid tyre and rim assembly carries out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, which are presented only to assist in understanding the methods and concepts of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be subject to several improvements and modifications, which also fall within the scope of the claims of the present invention.

Claims

1. The engineering solid tire and rim assembly comprises a solid tire and a rim, wherein a tire bead is arranged in the tire, the tire bead and the rim are in interference fit, and the shape of the tire bead is equal to that of the rimThe rim is adaptive in shape, and is characterized in that: the tire bead is provided with a first inflection point and a second inflection point at a broken line from a bead heel to a bead toe section, a first inflection point and a second inflection point are correspondingly arranged at a broken line between a bead seat and an assembly groove of the rim, a first bead ring and a second bead ring are arranged in the tire bead, the horizontal distance F from the center point of the first bead ring to the rim of the tire is 12mm longer than the distance E between the center point of the first bead ring and the center point of the second bead ring, and the sum of the horizontal distance F from the center point of the first bead ring to the rim of the tire and the distance E between the center point of the first bead ring and the center point of the second bead ring is equal to the horizontal distance C from the first inflection point of the rim to the rim of the rim₁A horizontal distance B from a first inflection point and a second inflection point of the rim₁And (4) summing.

2. The engineered solid tire and rim assembly of claim 1, wherein: the included angle a between the bead seat of the rim and the horizontal plane₁Equal to the included angle a between the horizontal plane and the straight line extending from the bead heel to the bead toe₂Equal, the included angle beta between the horizontal plane and the straight line extending from the first inflection point of the rim to the second inflection point of the rim₁An angle beta between a line equal to the first point of inflection of the bead extending to the second point of inflection thereof and the horizontal plane₂。

3. The engineered solid tire and rim assembly of claim 1 or 2, wherein: the horizontal distance A from the starting point of the groove bottom of the assembling groove to the central point₁Is equal to the horizontal distance A from the second inflection point of the bead to the center line of the tire₂A horizontal distance B between the first inflection point and the second inflection point of the rim₁A horizontal spacing B equal to the first inflection point and the second inflection point of the bead₂。

4. The engineered solid tire and rim assembly of claim 1 or 2, wherein: the diameter d of the bottom of the tire₁Diameter D of the fitting groove₁Interference fit, overThe magnitude of the shrink is 15 mm; the bead engaging diameter d₂Diameter D of the wheel rim₂And interference fit is carried out, and the interference magnitude is 11 mm.

5. The engineered solid tire and rim assembly of claim 1 or 2, wherein: a horizontal distance C from a first inflection point of the rim to a rim of the rim₁Increasing an interference of 9.7mm and a horizontal distance C from the bead first bead ring center point to the tire rim₂And (4) interference fit.

6. The engineered solid tire and rim assembly of claim 1, wherein: height H of the tire rim₂Height H from the rim flange₁The relationship between is H₂＝1.7H₁Radius of curvature R of arc surface at rim of said tire₂Curvature R of arc surface at rim edge of wheel rim₁The relationship between is R₂＝0.5R₁。