CN111231573A

CN111231573A - Combined automobile tubeless rim capable of effectively avoiding tire knocking over accident

Info

Publication number: CN111231573A
Application number: CN202010297855.0A
Authority: CN
Inventors: 矫涛
Original assignee: Liaoning Hengye Automobile New Material Co ltd
Current assignee: Liaoning Hengye Automobile New Material Co ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2020-06-05

Abstract

The invention relates to the technical field of all-steel truck rim processing, in particular to a combined type truck tubeless rim capable of effectively avoiding a tire knocking over accident, which is formed by assembling a rim body, a spoke and a retainer ring and is characterized in that a buckling part on the rim body is a turned edge turned upwards, when the rim body and the retainer ring are assembled, an inner flange D, a guide opposite edge a, a spigot opposite edge B and a lapping opposite edge C are respectively matched and corresponding to a positioning arc D, a guide edge A, a spigot opposite edge B and a lapping opposite edge C one by one, the shape of a flange part is a mirror image of the flange part relative to the central line of the rim, and bulge sections are respectively arranged on the upward opposite inner sides of the flange part from a tire mounting surface; the spoke is welded with the first combination of the bead seat part of the rim body. Compared with the prior art, the tire rim has the advantages that the bulge sections are respectively arranged at the flange part and the retainer ring which are matched with the tire in the mounting way, so that the stress at the mounting position of the rim and the tire is improved, the friction force and the clamping force are increased, the tire is not easy to separate, and the driving safety is improved.

Description

Combined automobile tubeless rim capable of effectively avoiding tire knocking over accident

Technical Field

The invention relates to the technical field of all-steel truck rim processing, in particular to a combined type automobile tubeless rim capable of effectively avoiding a tire knocking over accident.

Background

At present, the production of all-steel lorry wheel rims forms GB/T3487-2005 automobile wheel rim specification series standards, see FIG. 5, the wheel rims are of an integrated structure and comprise: a substantially cylindrical groove portion (31), bead seat portions (32), connecting portions (34), a transition portion (35), and flange portions (33) at both ends, the connecting portions (34) being provided on both sides of the groove portion (31) along both sides in the rim width direction, the bead seat portions (32) being provided outside both sides of the connecting portions (34) in the rim width direction, and the bead seat portions (32) being substantially in the shape of a conical ring, the radius of the conical ring-shaped bead seat portion (32) being larger than the radius of the groove portion (31); the flange portion (33) is provided on the outer side in the rim width direction of each bead seat portion (32), wherein the tire mounting surface (36) is flush with the root portion of the flange portion (33). When the conventional tubeless integrated rim is used for the load-carrying vehicle, the load-carrying capacity is overloaded or the road condition is not good under the standard load state, so that the tire is easily separated from the rim under the condition of instantaneous overload, and traffic accidents are caused.

The utility model discloses a domestic application number 20132060774.5's utility model discloses a vacuum tire steel ring, including the circle body of placing the tire and the catch of chucking tire, the vertical height of laminating tread on the catch is 30mm-80mm, and the vertical height of laminating tread on the circle body is the same with the vertical height of laminating tread on the catch. The vertical height of the tire surface attached to the lock ring is increased, so that the attaching area of the tire and the steel ring is obviously increased, the tire and the steel ring are prevented from being separated possibly, and the purpose of safety is achieved.

The invention patent with the domestic application number of 201310656952.4 provides a rim, which is used for assembling a 22.5-inch load tubeless tire, solves the problem that the ring is easy to fall off when the traditional integrated rim is used for the load tubeless tire, and mainly comprises a rim seat main body, a rim seat auxiliary body, an O-shaped sealing ring and a locking strip.

Disclosure of Invention

The invention aims to provide a combined type automobile tubeless rim capable of effectively avoiding a tire knocking over accident, overcoming the defects of the prior art, adopting a combined structure of an elastic retainer ring, a spoke and a rim body, optimizing the shape and the size of each part of a cross section aiming at a truck rim with the diameter of 17.5-24.5 inches, improving the strength and the rigidity of a product, meeting the market demand of the truck rim, adapting to the objective conditions of heavy load, poor road condition, long continuous driving time and the like of a truck, and preventing the knocking over risk.

In order to achieve the purpose, the invention adopts the technical scheme that:

the combined type automobile tubeless rim capable of effectively avoiding the tire knocking over accident is formed by assembling a rim body, a spoke and a check ring, wherein the rim body is formed by rolling and welding a rim profile steel for a tubeless wheel, and is sequentially connected with a flange part (33), a first bead seat part (32), a first connecting part (34), a groove part (31), a second connecting part (34 '), a second bead seat part (32') and a buckling part (37) from the left side to the right side in the width direction of the rim body; the check ring is a C-shaped elastic element, the width of an opening is 2-5 mm, an inner flange D, a guide opposite edge a, a spigot opposite edge B, a lapping opposite edge C and a flange opposite portion (33 ') are arranged on the check ring (2), when the rim body and the check ring are assembled, the inner flange D, the guide opposite edge a, the spigot opposite edge B and the lapping opposite edge C are respectively matched and corresponding to the positioning arc D, the guide edge A, the spigot edge B and the lapping edge C one by one, the shape of the flange opposite portion (33') is a mirror image of the flange portion (33) relative to the center line of the rim, and bulge sections are respectively arranged on the inner sides of the flange opposite to the upward direction of the tire mounting surface (36); the spoke is welded with the first bead seat part (32) of the rim body in a combined mode.

The width H of the bulging section accounts for 1/3-1/5 of the effective length H of the flange part (33') or the flange part (33), and the chord height of the bulging section is 1.5-3.5 mm.

The surface of the bulging section is provided with raised reticulate patterns or is coated with a material capable of increasing the friction force with the rubber tire.

The rim section steel for the tubeless wheel is formed by rolling steel materials, a flange portion (33), a first bead seat portion (32), a transition portion (35), a first connecting portion (34), a groove portion (31), a second connecting portion (34 '), a second bead seat portion (32') and a buckling portion (37) are sequentially connected from the left side to the right side in the width direction of a section bar, the buckling portion (37) is an upward turned edge, the upper outline of the turned edge is formed by a positioning arc D, a guide edge A, a stop edge B, a lapping edge C, a side edge G and a bottom edge E on the cross section of the section bar, a first intersection point O between the first bead seat portion (32) and the flange portion (33) is located on a tire mounting surface (36), a second intersection point O 'between the second bead seat portion (32') and the flange portion (33 ') is also located on the tire mounting surface (36), the second intersection point O' is mirror-symmetrical to the first intersection point O relative to the rim center line (39), the positioning arc D has a radius of 3-5 mm, an effective included angle of α mm between the guide edge A and the tire mounting surface A, an effective included angle of 10mm between the guide edge A and the second intersection point O 'is equal to 15mm, an effective included angle of the second intersection point E between the second intersection point E, the second intersection point O' is equal to a 10mm, the bottom edge C, the effective included angle of the second intersection point E is equal to 10mm, the effective included angle of the second intersection point E, the second intersection point E is equal to the second intersection point M-5 mm, the second intersection point.

The thickness of the flange part (33), the first bead seat part (32), the transition part (35), the first connecting part (34), the groove part (31), the second connecting part (34 ') and the second bead seat part (32') is 8-12.5 mm, and the joint of the flange part, the first bead seat part and the second bead seat part is rounded R1 mm-R18 mm.

And a continuous smooth transition belt which takes an inflection point F on the back surface of a connecting part between the first tire bead seat part (32) and the flange part (33) as a center, extends to two sides for 12-16 mm respectively, and has the thickness from 12-13.5 mm of the center to 8-9 mm of an extending end point, and is positioned on the bottom surface of the section.

The distance S between the highest position of the flange portion (33) and the tire mounting surface (36) is 30-50 mm.

The radius of the positioning arc D is 3mm, the intersection line between the positioning arc D and the second bead seat portion (32 ') is lower than the tire mounting surface (36), the distance J is 2.8mm, the effective length of the guide edge A is 13-14 mm, an α angle formed between the guide edge A and the tire mounting surface (36) is 7 +/-1 degrees, the included angle β between the guide edge A and the seam allowance edge B is 72 +/-1 degrees, the effective length of the seam allowance B is 8-9 mm, the included angle gamma between the seam allowance B and the lapping edge C is 74 +/-1 degrees, the lapping edge C is located at the blind end of the buckling portion 37, the width of the blind end is 12-13 mm, the vertical distance L between the side edge G and the second intersection point O ' is 25-26 mm, and the vertical distance M between the bottom edge E and the second intersection point O ' is 19-20 mm.

Compared with the prior art, the invention has the beneficial effects that: 1) the flange part and the retainer ring which are matched with the tire are respectively provided with the bulging sections, so that the stress of the mounting position of the rim and the tire is improved, the friction force and the clamping force are increased, and the tire is not easy to separate. 2) The rim body adopts a three-piece combined structure, and compared with the traditional integrated rim body, the problem of difficult tyre installation of a tubeless tyre is solved; (2) the rim body improves the height of the wheel rim, prevents the problem of knocking over in the using process after the tire is installed, and improves the driving safety; 3) the shape and tolerance of each part of the section are optimized, the strength and rigidity of the product are improved, the objective conditions of heavy load, poor road condition, long continuous running time, high speed and the like of the truck are adapted, and the market demand of the truck rim is met.

Drawings

FIG. 1 is a schematic structural view of an embodiment of the combined tubeless rim for an automobile of the present invention.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a partially enlarged view of fig. 1 at B.

FIG. 4 is a schematic structural view of an embodiment of the rim section steel for the tubeless wheel of the present invention.

FIG. 5 is a cross-sectional schematic view of a prior art integrated all-steel truck rim.

In the figure: 1-rim body, 2-retainer ring, 3-spoke, 31-groove part, 32-bead seat part, 33-flange part, 34-connecting part, 35-transition part, 36-tire mounting surface, 37-buckling part, 38-transition belt, 39-rim center line, 40-thin reducing belt, 41-valve hole, 42-spot facing plane and 43-bulge segment.

Detailed Description

The preparation process of the present invention is further illustrated by the following examples:

referring to fig. 1 to 4, the combined type automobile tubeless rim capable of effectively avoiding a tire knocking over accident is shown in the embodiment of the invention, and is formed by assembling a rim body 1, a spoke 3 and a retainer ring 2, a position for installing a tire is defined between the rim body 1 and the retainer ring 2, the vertical height of a tire surface attached on the rim body 1 and the retainer ring 2 is increased to 30-32 mm from the original 12.7mm, the attachment area of the tire and the rim is obviously increased by increasing the effective length of the tire surface attached, and the tire and a steel ring are prevented from being possibly separated, so that the purpose of safety is achieved. After combination, the spoke 3 and the bottom surface of the first bead seat part 32 are welded in a synthesis mode according to a conventional method, and after welding slag and surface defects are removed, surface coating is finished.

The rim body 1 is formed by rolling a section, the width direction of the section is from the left side to the right side, the section comprises a flange portion 33, a first bead seat portion 32, a transition portion 35, a first connecting portion 34, a groove portion 31, a second connecting portion 34 ', a second bead seat portion 32 ' and a buckling portion 37 which are sequentially connected, the buckling portion 37 is a turned-up turned edge, the upper outline of the turned edge is formed by a positioning arc D, a guide edge A, a stop edge B, a lapping edge C, a side edge G and a bottom edge E on the cross section of the section, a first intersection O between the first bead seat portion 32 and the second bead seat portion 33 is located on a tire mounting surface 36, a second intersection O ' between the guide edge A and the second bead seat portion 32 ' is also located on the tire mounting surface 36, the second intersection O ' is symmetrical to the first intersection O relative to a rim center line 39, an angle α angle 7 degrees is formed between the guide edge A and the tire mounting surface 36, the effective length of the guide edge A is 13-14 mm, an included angle between the guide edge A and the stop edge B is 72 degrees, an included angle β degrees between the stop edge B and the blind edge B is 8-9 mm, an included angle between the B and the lapping edge C is 25.6mm, a vertical distance between the second intersection of the blind edge E is 25.13-13 mm, and the blind edge.

The distance S between the outermost edge of the flange 33 and the tire mounting surface 36 is 30-32 mm, and the distance N between the first intersection O and the second intersection O' corresponds to the specification of the tire (9.5 inches, 241.3 mm). The fillet R1 between side G and base E is 10mm, the fillet R2 between side G and the overlap edge C is 3mm, the fillet R3 between tang limit B and the overlap edge C is 2mm, the fillet R4 between tang limit B and guide edge A is 2mm, the location arc D is 3mm, base E and the second 32' back of bead seat are in smooth transition with fillet R7 and R6, R7 is 5mm in the embodiment, R6 is 12 mm.

And a continuous smooth transition belt 38 which takes an inflection point F on the back surface of the joint between the first bead seat part 32 and the flange part 33 as the center, extends H1 and H2 to two sides respectively and is 18mm respectively, and has the thickness from 12-13.5 mm of the center to 8-9 mm of the extending end point, is positioned on the bottom surface of the section bar, and can improve the integral strength of the section bar. The thickness of the section bar of the buckling part 37 is 11-13 mm. The bottom surface of the groove part 31 is provided with a thinning belt 40 with the width of 48-59 mm and the depth of 0.5-1 mm, and the thinning is to reduce the weight of the section bar under the condition of not influencing the strength.

The production process of the rim body 1 comprises the following steps: shearing strip materials, rolling and pressing characters, rolling circles, flattening, butt welding, slag planing, rolling welding seams, cutting ends, water cooling, pressing circles, flaring, rolling, expanding and finishing, punching air valve holes, punching air valve hole burrs and the like. The rolling forming is to bend the rim section steel strip for the tubeless wheel by the rotation of a plurality of rollers, and finally the cylindrical part is finished by flaring and rolling. From the left side to the right side in the width direction of the rim body, the flange portion 33, the bead seat portion one 32, the transition portion 35, the connecting portion one 34, the groove portion 31, the connecting portion two 34 ', the bead seat portion two 32', and the engaging portion 37 are connected in this order.

The second connecting part 34' is provided with a valve hole 41, the included angle delta between the central line of the valve hole and the tire mounting surface 36 is 29 degrees, the diameter d of the valve hole is 0.38 degrees, spot-facing planes 42 with the diameter of 16mm are respectively arranged at the two ends of the valve hole, and the effective depth V of the valve hole is 6 mm. The valve hole 41 is used for mounting a valve.

The check ring is a C-shaped elastic element, the width of the opening is 2-5 mm, an inner flange D, a guide opposite side a, a spigot opposite side B, a lapping opposite side C and a flange opposite portion 33 'are arranged on the check ring, after the rim and the check ring are assembled, the inner flange D, the guide opposite side a, the spigot opposite side B and the lapping opposite side C are respectively matched and corresponding to a positioning arc D, a guide edge A, a spigot edge B and a lapping edge C of the rim buckling portion 37 one by one, the shape of the flange opposite portion 33' is a mirror image of the flange portion 33 relative to the center line of the rim, and a bulging section 43 is arranged on the inner side of the flange opposite portion 33 in an.

The rim body adopts a three-piece combined structure, compared with the traditional integrated rim body, the rim body solves the problem of difficult tyre installation of the tubeless tyre, improves the height of a wheel rim, increases an expansion section, prevents the problem of knocking over in the using process after the tyre is installed, and increases the driving safety. Because the shapes and the tolerances of all parts of the section are optimized, the strength and the rigidity of the product are improved, the special-shaped section bar is more suitable for the objective conditions of heavy load, poor road condition, long continuous driving time, high speed and the like of a truck, and the market demand of the truck rim is met.

The embodiments described above are merely specific examples selected for illustrating the objects, technical solutions and advantages of the present invention in detail, and should not be construed as limiting the scope of the present invention, and various modifications, equivalent substitutions and improvements can be made without departing from the spirit and principle of the present invention.

Claims

1. The combined type automobile tubeless rim capable of effectively avoiding the tire knocking over accident is formed by assembling a rim body, a spoke and a check ring, wherein the rim body is formed by rolling and welding a rim profile steel for a tubeless wheel, and is sequentially connected with a flange part (33), a first bead seat part (32), a first connecting part (34), a groove part (31), a second connecting part (34 '), a second bead seat part (32') and a buckling part (37) from the left side to the right side in the width direction of the rim body; the check ring is a C-shaped elastic element, the width of an opening is 2-5 mm, an inner flange D, a guide opposite edge a, a spigot opposite edge B, a lapping opposite edge C and a flange opposite portion (33 ') are arranged on the check ring (2), when the rim body and the check ring are assembled, the inner flange D, the guide opposite edge a, the spigot opposite edge B and the lapping opposite edge C are respectively matched and corresponding to the positioning arc D, the guide edge A, the spigot edge B and the lapping edge C one by one, the shape of the flange opposite portion (33') is a mirror image of the flange portion (33) relative to the center line of the rim, and bulge sections are respectively arranged on the inner sides of the flange opposite to the upward direction of the tire mounting surface (36); the spoke is welded with the first bead seat part (32) of the rim body in a combined mode.

2. The combined rim for tubeless vehicle capable of effectively avoiding the knocking over accident according to claim 1, wherein the width H of the bulging section is 1/3-1/5 of the effective length H of the flange portion (33') or the flange portion (33), and the chord height thereof is 1.5-3.5 mm.

3. The combined rim for a tubeless vehicle capable of effectively avoiding a tire knockover accident as claimed in claim 1, wherein the surface of the bulging section is provided with raised reticulate patterns or is coated with a material capable of increasing the friction force with the rubber tire.

4. The combined type automobile tubeless rim capable of effectively avoiding the tire knocking over accident according to claim 1, characterized in that the rim section steel for the tubeless wheel is formed by rolling steel materials, and is formed by sequentially connecting a flange portion (33), a first bead seat portion (32), a transition portion (35), a first connecting portion (34), a groove portion (31), a second connecting portion (34 '), a second bead seat portion (32') and a buckling portion (37) from the left side to the right side in the width direction of the section steel, the buckling portion (37) is an upward turned bead, the upper profile of the bead is formed by a positioning arc D, a guide edge A, a stop edge B, a joining edge C, a side edge G and a bottom edge E in the cross section of the section steel, a first intersection point O between the first bead seat portion (32) and the flange portion (33) is located on the tire mounting surface (36), a second intersection point O 'between the second bead seat portion (32') and the flange portion (33 ') is also located on the tire mounting surface (36), the second intersection point O' between the second intersection point O 'and the flange portion (33') is located on the tire mounting surface (36), the intersection point is symmetrically to the center line (39) of the rim center line, the positioning arc D is located on the tire mounting surface, the effective intersection point, the effective included angle between the guide edge A-19 mm, the effective angle L-19 mm, the effective distance between the guide edge A-19 mm, the vertical to-19 mm, the effective included angle between the second intersection point L-10 mm, the effective intersection point L-10 mm effective included angle between the effective angle between the guide edge.

5. The combined rim for tubeless vehicles capable of effectively avoiding the knocking over accident according to claim 4, wherein the thickness of the flange portion (33), the first bead seat portion (32), the transition portion (35), the first connecting portion (34), the groove portion (31), the second connecting portion (34 ') and the second bead seat portion (32') is 8-12.5 mm, and the connecting portions are rounded at R1 mm-R18 mm.

6. The combined rim for tubeless vehicles capable of effectively avoiding the knocking over accident of the tire as claimed in claim 4, wherein the continuous smooth transition zone is located on the bottom surface of the section bar, and extends from 12 to 13.5mm of the center to 8 to 9mm of the extending end point, and the inflection point F of the back surface of the connection between the first bead seat portion (32) and the flange portion (33) is the center, and extends to both sides for 12 to 16 mm.

7. The combined rim for tubeless vehicles capable of effectively avoiding the knocking over accident according to claim 4, wherein the distance S between the highest point of the flange portion (33) and the tire mounting surface (36) is 30-50 mm.

8. The combined type automobile tubeless rim capable of effectively avoiding the tire knocking over accident according to claim 4, characterized in that the preferred values of the structure of the buckling part (37) are that the radius of the positioning arc D is 3mm, the intersection line between the positioning arc D and the second bead seat part (32 ') is lower than the tire mounting surface (36), the distance J is 2.8mm, the effective length of the guide edge A is 13-14 mm, an angle α between the guide edge A and the tire mounting surface (36) is 7 +/-1 degrees, an angle β between the guide edge A and the spigot edge B is 44 +/-1 degrees, the effective length of the spigot edge B is 8-9 mm, an angle γ between the spigot edge B and the lapping edge C is 74 +/-1 degrees, the lapping edge C is at the blind end of the buckling part 37, the width of the blind end is 12-13 mm, the vertical distance L between the side edge G and the intersection point two O ' is 25-26 mm, and the vertical distance M between the bottom edge E and the intersection point two O ' is 19-20 mm.