CN114683761A

CN114683761A - Novel rim

Info

Publication number: CN114683761A
Application number: CN202210572738.XA
Authority: CN
Inventors: 张少俊; 贾金山; 张安疆; 刘涛; 游远; 高乐; 刘显荣
Original assignee: Zhongqi Beixiao Beijing Emergency Equipment Technology Co ltd
Current assignee: Zhongqi Beixiao Beijing Emergency Equipment Technology Co ltd
Priority date: 2022-05-25
Filing date: 2022-05-25
Publication date: 2022-07-01
Anticipated expiration: 2042-05-25
Also published as: CN114683761B

Abstract

The invention discloses a novel rim, which is suitable for a single tyre widened in the installation of large vehicles. An annular groove is formed in the inner surface of the outer end of the rim body, and the thrust ring is installed in the annular groove in a matched mode; the longitudinal sections of the annular groove and the thrust ring are both trapezoidal, and the inner bottom angles of the trapezoids are the same as the inclination of the axle shaft shoulder; the inner surface of the inner end of the rim body is provided with a shaft shoulder surface matched with a shaft shoulder of the axle, and the inclination of the shaft shoulder surface is the same as that of the shaft shoulder of the axle; the inner surface of the rim body is also provided with an anti-rotation key which is arranged in a valve passing groove of the axle in a matching way. According to the invention, through the improvement of the wheel rim body, only one widened single tire can be arranged on the lengthened axle, the thrust ring can relieve the inward thrust borne by the wheel rim, the pressure on the axle is reduced, and the axle is prevented from being damaged.

Description

Novel rim

Technical Field

The present invention relates to a vehicle rim, and more particularly to a single tire rim structure adapted for retrofitting on an axle adapted for mounting dual tires.

Background

The wheel consists of a hub, a rim and spokes connected between the two elements. The wheel rim is a part for mounting a tire on the outermost ring of the wheel, is commonly called a wheel rim, and is tightly hooped on the outer edge of an axle. For large trucks, the main load capacity is at the rear, the rear axle is loaded more than the front axle, in order to meet the load capacity and the driving stability, the rear wheel tires are not overloaded, the rear axle is generally provided with double tires, the rim form of the rear axle is as shown in figure 1, because the tire-loading part of the axle is longer, two rims 1-1 and 1-2 are arranged on the axle, the two rims are supported and separated by a sleeve 1-3, and a gland 1-4 and a straight cylinder 1-5 are arranged at the outer end of the axle to tightly press the two rims and the sleeve. Because the inner end of the axle is provided with a slope shaft shoulder, the joint surface of the inner side wheel rim 1-2 and the axle is also required to be made into an inclined surface which is clamped at the shaft shoulder so that the wheel rim and the axle are tightly matched. For the sake of symmetry, the sleeve 1-3 can support the rims at two sides, the inner ring of the outer rim 1-1 can be pressed into the straight cylinder 1-5, and the matching surface of the outer rim 1-1 and the straight cylinder 1-5 can also be made into an inclined surface; the right circular cylinder 1-5 is clamped between the wheel rim and the axle and is pressed inwards by the gland 1-4, the gland 1-4 transmits the pressing force to the right circular cylinder 1-5, the pressing force is transmitted to the outer wheel rim 1-1, the sleeve 1-3 and the inner wheel rim 1-2 through the right circular cylinder 1-5, and the wheel rim is pressed by the shaft shoulder of the axle.

However, for some purpose-built vehicle models, it has to be considered to install a single widened tire on a dual-tire axle, and if one wants to install only a single tire on the dual-tire axle, the dual rim must be changed to a single rim. An improved form of refitting a double wheel rim into a single wheel rim on the basis of the axle shown in fig. 1 is that the wheel rim is made to be full-length, and after the improvement, when a gland presses inwards, the inner ring of the wheel rim and the axle shoulder are easy to slide, so that the axle shoulder is cracked under pressure, such as the point A marked in fig. 2, therefore, the form of the wheel rim is obviously not preferable, and the problem needs to be solved.

Disclosure of Invention

Aiming at the problems, the invention provides a novel rim, which is characterized in that a thrust stopping component is additionally arranged between a rim body and an axle mainly through the improvement of the rim body, so that the axial extrusion of the rim to the axle is reduced, the axle is prevented from being damaged, the axle is protected, the rim can be lengthened, and the novel rim is suitable for mounting wide-size tires.

The technical scheme adopted by the invention is as follows:

a novel rim comprises a rim body, an elastic locking ring, a seat ring, a retainer ring and a thrust ring;

an annular groove is formed in the inner surface of the outer end of the rim body, and the thrust ring is installed in the annular groove in a matched mode;

the longitudinal sections of the annular groove and the thrust ring are both trapezoidal, and the inner base angle of the trapezoid is the same as the inclination of the axle shaft shoulder;

the inner end inner surface of the rim body is provided with a shaft shoulder surface matched with a shaft shoulder of an axle, and the inclination of the shaft shoulder surface is the same as that of the shaft shoulder of the axle;

the inner surface of the rim body is provided with an anti-rotation key, and the anti-rotation key is installed in a valve passing groove of an axle in a matching mode.

Further, the method comprises the following steps:

the inner end part of the rim body is provided with an outer edge which radially protrudes out of the rim body.

Further:

and an upward inclined plane is processed on the outer surface of the inner end of the rim body.

Further:

the inclined plane raised on the outer surface of the rim body is symmetrical to the inclined plane of the installed seat ring.

Further:

at least 1 anti-rotation key is arranged along the air valve passing sub-groove of the axle.

Compared with the prior art, the invention has the remarkable advantages that: according to the invention, through the improvement of the rim body, only one rim can be installed on the lengthened axle, and a widened single tire is installed; the annular groove is formed in the inner part of the rim body, and the thrust ring is arranged in the annular groove, so that the inward thrust borne by the rim can be relieved, the pressure on an axle is reduced, the rim is prevented from moving, and the rim is lengthened; the installation of the tire can be ensured by designing the outer edge and the inclined plane at the outer end of the rim; the anti-rotation key is designed in the rim, so that the rim can be prevented from slipping.

Drawings

The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention.

FIG. 1 is a prior art dual rim construction;

FIG. 2 is a prior art single rim construction;

FIG. 3 is an assembly view of a single rim and axle of the present invention;

FIG. 4 is a single rim construction of the present invention;

FIG. 5 is a view of the rim body of the present invention;

FIG. 6 is a block diagram of the thrust ring of the present invention.

Detailed Description

The invention is described in detail below with reference to the drawings and examples, which are intended to illustrate the examples. However, it should be understood by those skilled in the art that the following examples are not intended to limit the scope of the present invention, and any equivalent changes or modifications made within the spirit of the present invention should be considered as falling within the scope of the present invention.

As shown in figure 3, according to the common rim form of a truck, the flat-bottom rim is selected according to the invention and comprises a rim body 1, an elastic locking ring 2, a seat ring 3, a retainer ring 4 and a thrust ring 5, and the key point of the invention is that under the condition that the rim body 1 is ensured to be long enough, the rim body 1 is prevented from causing overpressure to the shaft shoulder of an axle by embedding the blocking action of the thrust ring 5.

As shown in fig. 4, the rim body 1, the elastic locking ring 2, the seat ring 3, the retainer ring 4, and the thrust ring 5 are annular bodies centered on the axle center. The rim body 1 is sleeved on the outer surface of the axle; two check rings 4 are sleeved at the inner end and the outer end of the rim body 1 (the inner end and the outer end refer to the mounting positions of the rim body on the axle) and used for clamping the tire sleeved on the rim body; the seat ring 3 is arranged at the outer end of the rim body 1, is arranged between the rim body 1 and the retainer ring 4, and is used for radially pressing the rim body and boosting the retainer ring; the elastic locking ring 2 is used for preventing the retainer ring 4 from being separated, when a tire is installed, the tire is sleeved on the rim body firstly, then the retainer ring 4 is sleeved on the tire, then the elastic locking ring 2 is pushed inwards until the elastic locking ring crosses the annular groove on the rim body, the elastic locking ring 2 is clamped in the annular groove, and the retainer ring 4 is locked.

The rim body 1 of the present invention is modified: as shown in fig. 5, the rim body cannot be operated at the mounting inner end and cannot be provided with the elastic locking ring 2 and the seat ring 3, so that an outer edge 11 is formed at the inner end part of the rim body, and the outer edge 11 can block the retaining ring 4; a slightly raised inclined plane B is processed on the outer surface of the inner end of the rim body and is used for enabling the tire to be internally folded on the rim body, and the inclined plane B is about 5 degrees and is preferably symmetrical to the inclined plane of the seat ring 3; and the inner surface of the inner end of the rim body is provided with a step surface matched with an axle, in particular to a surface matched with an axle shoulder, and the step surface is processed into a shoulder surface C which is the same as the axle, in the embodiment, the angle is 28 degrees, and the inward movement of the rim can be limited through the inclined surface.

Moreover, the inner surface of the outer end of the rim body is provided with an annular groove E, the annular groove D is used for installing the thrust ring 5, the structure of the thrust ring 5 is shown in figure 6, the cross section of the annular groove D is trapezoidal, the inner base angle of the trapezoid is the same as the inclined angle of the axle shoulder of the axle and is 28 degrees of the embodiment, the design changes the traditional design idea that the inner surface of the rim is a straight surface, parts can be embedded into the groove, the rim is prevented from sliding randomly, meanwhile, the stress relation of the rim is changed, when the rim body is pressed by an outer end gland, the force cannot be directly applied to the axle shoulder of the axle through the rim body, but is applied to the axle shoulder of the axle after being relieved once through the embedded thrust ring 5, and the axle is greatly prevented from being damaged. When the outer end of the rim body 1 is pressed inwards by the pressing cover from the outer end, the rim body 1 has a tendency of pushing inwards, when the inward pushing force of the rim body 1 acts on the thrust ring 5, an oblique acting force is exerted on the thrust ring 5 through the inclined surface of the annular groove D, the thrust ring 5 is a bidirectional inclined surface, under the two-time reaction direction change, the thrust ring 5 generates an anti-oblique force on the rim body, the force enables the rim body 1 to generate a bidirectional tightening effect between the thrust ring 5 and the axle shoulder, therefore, the rim body is tightly hooped on the axle surface, the force acting on the axle shoulder is reduced, the ingenious design not only protects the axle and the rim, but also enables the rim to be fixed more stably, and the structure is particularly suitable for being adopted under the condition that the rim body is particularly long.

The wheel rim body 1 is provided with an inflating valve sub-opening E, a groove is arranged at the position, opposite to the inflating valve sub-opening E, of the outer surface of the axle, and further, in order to prevent the wheel rim from rotating (slipping) relative to the axle, the inflating valve is cut off by shearing force (the circumferential position of the inflating valve changes when the wheel rim rotates and is easily cut off by the edge of the groove). Still further, such anti-rotation keys 6 may be provided several along the groove.

From the above description, it is desired to explain in full detail the solution of the invention, which rim structure can be mounted on large transport vehicles of the 100 ton class.

Claims

1. A novel rim is characterized in that: comprises a rim body (1), an elastic locking ring (2), a seat ring (3), a retainer ring (4) and a thrust ring (5);

an annular groove (D) is formed in the inner surface of the outer end of the rim body (1), and the thrust ring (5) is installed in the annular groove (D) in a matched mode;

the longitudinal sections of the annular groove (D) and the thrust ring (5) are both trapezoidal, and the inner base angle of the trapezoid is the same as the inclination of the axle shaft shoulder;

a shaft shoulder surface (C) matched with a shaft shoulder of an axle is processed on the inner end inner surface of the rim body (1), and the inclination of the shaft shoulder surface (C) is the same as that of the shaft shoulder of the axle;

the inner surface of the rim body (1) is provided with an anti-rotation key (6), and the anti-rotation key (6) is installed in a valve passing groove of an axle in a matching mode.

2. The new rim of claim 1, wherein:

the inner end part of the rim body (1) is provided with an outer edge (11) which radially protrudes out of the rim body.

3. The new rim of claim 1, wherein:

the outer surface of the inner end of the rim body (1) is provided with a raised inclined plane (B).

4. The new rim of claim 3, wherein:

the inclined plane (B) raised on the outer surface of the rim body (1) is symmetrical to the inclined plane of the installed seat ring (3).

5. The new rim of claim 1, wherein:

at least 1 anti-rotation key (6) is arranged along the valve passing groove of the axle.