阅读说明：本技术 一种基于dh结构和dw结构组合的轮辋及其制造方法 (Rim based on combination of DH structure and DW structure and manufacturing method thereof ) 是由 徐恩成 高勇 徐长红 宋志俭 冯开华 于 2021-08-19 设计创作，主要内容包括：本发明属于重载农用机械和林业机械领域,具体涉及一种基于DH结构和DW结构组合的轮辋,包括轮辋,所述轮辋的装胎侧设置有DH结构,非装胎侧设置有DW结构,所述DH结构和所述DW结构之间是一体化成型；所述DH结构的装胎侧槽底为倾斜的折弯部,所述DW结构的非装胎侧槽底为波浪状的折弯部；一体式结构,解决了传统的拼接结构造成的漏气风险的同时提高了生产效率；DH结构的装胎侧槽底比普通DW结构加深,解决了装胎难的问题；非装胎侧DW结构,提高了轮辋强度；凸出的滚花结构,解决了轮胎打滑问题；轮辋采用一件式成型结构,在达到同等载荷的情况下,结实耐用,制造过程不需要拼接,低耗能,无污染,安全指数高,生产效率提高50%,成本降低30%。(The invention belongs to the field of heavy-duty agricultural machinery and forestry machinery, and particularly relates to a rim based on combination of a DH structure and a DW structure, which comprises a rim, wherein the DH structure is arranged on the tire mounting side of the rim, the DW structure is arranged on the non-tire mounting side of the rim, and the DH structure and the DW structure are integrally formed; the bottom of the tire mounting side groove of the DH structure is an inclined bending part, and the bottom of the non-tire mounting side groove of the DW structure is a wavy bending part; the integrated structure solves the air leakage risk caused by the traditional splicing structure and improves the production efficiency; the bottom of the tire mounting side groove of the DH structure is deeper than that of the common DW structure, so that the problem of difficult tire mounting is solved; the DW structure on the non-tire-mounting side improves the strength of the rim; the convex knurling structure solves the problem of tire slip; the rim adopts a one-piece molding structure, is firm and durable under the condition of reaching the same load, does not need to be spliced in the manufacturing process, has low energy consumption, no pollution and high safety index, improves the production efficiency by 50 percent and reduces the cost by 30 percent.)

1. A rim based on combination of a DH structure and a DW structure is characterized by comprising a rim (1), wherein a DH structure (2) is arranged on a tire-mounted side of the rim (1), a DW structure (3) is arranged on a non-tire-mounted side of the rim, and the DH structure (2) and the DW structure (3) are integrally molded; the bottom of the tire mounting side groove of the DH structure (2) is an inclined bending part, and the bottom of the non-tire mounting side groove of the DW structure (3) is a wavy bending part; and bead seats with the same inclined structures are arranged at the tops of the DH structure (2) and the DW structure (3), and convex knurled structures are arranged on the bead seats.

2. A rim based on a combination of DH and DW structures according to claim 1, characterized in that the sidewall well bottom depth of the DH structure (2) is 25.4mm greater than the standard well bottom depth of the DW structure (3).

3. The rim based on the combination of the DH structure and the DW structure according to claim 1, characterized in that the wave-shaped bending part of the DW structure (3) has a plurality of bending sections, and the overall thinning amount is low.

4. A method for manufacturing a rim based on a combination of DH structure and DW structure according to any of claims 1-3, comprising: step 1, a steel mill flattens materials to ensure that the surfaces are smooth and have no scratches, EPS rust removal and blanking ensure that the surfaces are smooth and have rust resistance, the materials are automatically fed and then pressed with characters, the materials enter automatic rounding equipment, and the openings are ensured to be 2mm and have no staggered openings, so that the welding of the next process is convenient; step 2, using a 2000KVA automatic pulse welding machine to perform butt welding corresponding to proper current and voltage, ensuring that the welding quality is not cracked, and performing slag scraping and calendaring treatment on the welded high-point welding line to ensure that the welding line is smooth and attractive; step 3, flaring is carried out by using special 500T equipment and a mould, wherein the size of the upper end is different from that of the lower end; step 4, rolling the designed profile through special rolling equipment to ensure that the width and the appearance of the wheel rim are qualified; step 5, ensuring that the roundness is qualified through expansion, and the circumference meets the tolerance requirement; step 6, punching the valve hole by using a special machine, so that the valve can be conveniently and closely installed, and the surface is cleaned to ensure the cleanness of the surface; step 7, carrying out group fitting and press fitting of different sizes according to customer requirements, and strengthening fatigue strength through interference fit; and 8, performing synthetic welding on the product by using a special submerged arc welding machine to ensure strength connection, performing secondary treatment on the surface of the product, and performing electrophoretic coating to prevent rusting in different operating environments.

Technical Field

The invention relates to the field of heavy-duty agricultural machinery and forestry machinery, in particular to a rim based on combination of a DH structure and a DW structure and a manufacturing method thereof.

Background

The existing rim design mainly comes from standards such as European Tire and Rim Technical Organization (ETRTO), American Tire and Rim Association (TRA) or GB _ T3372-tractors, rim series for agricultural and forestry machines and the like, only has a single DH profile or a single DW profile, adopts a DH and DW combined rim profile which is not specified in the standard, adopts a widened DW welding structure in China and abroad, and has the problems of easy air leakage and difficult tyre installation.

Disclosure of Invention

Objects of the invention

In order to solve the technical problems in the background art, the invention provides a rim based on combination of a DH structure and a DW structure, the combined integrated structure solves the problems of air leakage risk and production efficiency improvement, the DH structure facilitates tire mounting of the rim, the DW structure improves the rim strength, and the raised knurling structure on the DH structure and the DW structure solves the problem of tire slipping.

(II) technical scheme

In order to solve the technical problem, the invention provides a rim based on combination of a DH structure and a DW structure, which comprises a rim, wherein the DH structure is arranged on the tire mounting side of the rim, the DW structure is arranged on the non-tire mounting side of the rim, and the DH structure and the DW structure are integrally molded;

the bottom of the tire mounting side groove of the DH structure is an inclined bending part, and the bottom of the non-tire mounting side groove of the DW structure is a wavy bending part;

the top of DH structure with DW structure is provided with the bead seat of the same slope structure, is provided with convex annular knurl structure on the bead seat.

Preferably, the depth of the bottom of the groove at the tire loading side of the DH structure is 25.4mm greater than the depth of the bottom of the standard rim groove of the DW structure.

Preferably, the wavy bending part of the DW structure is provided with a plurality of bending sections, and the overall thinning amount is low.

The invention also provides a rim manufacturing method based on the combination of the DH structure and the DW structure, which comprises the following steps:

step 1, a steel mill flattens materials to ensure that the surfaces are smooth and have no scratches, EPS rust removal and blanking ensure that the surfaces are smooth and have rust resistance, the materials are automatically fed and then pressed with characters, the materials enter automatic rounding equipment, and the openings are ensured to be 2mm and have no staggered openings, so that the welding of the next process is convenient;

step 2, using a 2000KVA automatic pulse welding machine to weld two ends corresponding to proper current and voltage, ensuring that the welding quality does not crack, and performing slag scraping and calendaring treatment on the welded high-point welding line to ensure that the welding line is smooth and attractive;

step 3, flaring is carried out by using special 500T equipment and a mould, wherein the size of the upper end is different from that of the lower end;

step 4, rolling the designed profile through special rolling equipment to ensure that the width and the appearance of the wheel rim are qualified;

step 5, ensuring that the roundness is qualified through expansion, and the circumference meets the tolerance requirement;

step 6, punching the valve hole by using a special machine, so that the valve can be conveniently and closely installed, and the surface is cleaned to ensure the cleanness of the surface;

step 7, carrying out group fitting and press fitting of different sizes according to customer requirements, and strengthening fatigue strength through interference fit;

and 8, performing synthetic welding on the product by using a special submerged arc welding machine to ensure strength connection, performing secondary treatment on the surface of the product, and performing electrophoretic coating to prevent rusting in different operating environments.

The technical scheme of the invention has the following beneficial technical effects:

1. the integrated structure solves the air leakage risk and improves the production efficiency; the bottom of the tire mounting side groove of the DH structure is deeper than that of a common DW structure standard rim, so that the problem of tire mounting is solved; the DW structure on the non-tire-mounting side improves the strength of the rim; the convex knurling structure solves the problem of tire slip;

2. the rim adopts a one-piece molding structure, is firm and durable under the condition of reaching the same load, does not need to be spliced in the manufacturing process, has low energy consumption, no pollution and high safety index, improves the production efficiency by 50 percent and reduces the cost by 30 percent.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the DW structure of the present invention;

fig. 3 is a schematic cross-sectional structure view of the rim of the present invention.

Reference numerals:

1. a rim; 2. a DH structure; 3. DW structure.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in FIGS. 1-3, the wheel rim based on the combination of the DH structure and the DW structure provided by the invention has the advantages that the DH structure 2 is arranged on the tire-mounting side of the wheel rim 1, the DW structure 3 is arranged on the non-tire-mounting side, and the DH structure 2 and the DW structure 3 are integrally molded;

the bottom of the loading side groove of the DH structure 2 is an inclined bending part, and the bottom of the non-loading side groove of the DW structure 3 is a wavy bending part;

the top of DH structure 2 and DW structure 3 is provided with the bead seat of the same slope structure, is provided with convex annular knurl structure on the bead seat.

In this embodiment, rim 1 is modular design, both sides are DH structure 2 and DW structure respectively, the dress child side groove bottom degree of depth of DH structure 2 is higher than DW structure 3's standard rim groove bottom degree of depth 25.4mm, promote DH structure 2's dress child side groove bottom degree of depth, make things convenient for the installation of tire on DH structure 2, DW structure 3 wavy portion of bending has a plurality of sections of bending, the whole volume of reducing is low, a plurality of degrees of bending are used for increasing DW structure 3 portion of bending's thickness, the benefit of promotion thickness lies in the intensity and the rigidity of rim better, it more conveniently does benefit to the shaping to make, with the frictional force of the protruding annular knurl structure multiplicable contact surface of the attached face department setting of tire, prevent that the tire from skidding.

A rim manufacturing method based on combination of a DH structure and a DW structure comprises the following steps:

step 1, preprocessing materials, flattening the materials by a steel mill to ensure that the surfaces are smooth and have no scratches, performing EPS rust removal and blanking to ensure that the surfaces are smooth and have rust resistance, automatically feeding and pressing characters, entering automatic rounding equipment, ensuring that the openings are 2mm and have no stagger, and facilitating the welding of the next process;

step 2, using a 2000KVA automatic pulse welding machine to perform butt welding corresponding to proper current and voltage, ensuring that the welding quality is not cracked, and performing slag scraping and calendaring treatment on the welded high-point welding line to ensure that the welding line is smooth and attractive;

step 3, flaring is carried out by using special 500T equipment and a mould, wherein the size of the upper end is different from that of the lower end;

step 4, rolling the designed profile through special rolling equipment to ensure that the width and the appearance of the wheel rim are qualified;

step 5, ensuring that the roundness is qualified through expansion, and the circumference meets the tolerance requirement;

step 6, punching the valve hole by using a special machine, so that the valve can be conveniently and closely installed, and the surface is cleaned to ensure the cleanness of the surface;

step 7, carrying out group fitting and press fitting of different sizes according to customer requirements, and strengthening fatigue strength through interference fit;

and 8, performing synthetic welding on the product by using a special submerged arc welding machine to ensure strength connection, performing secondary treatment on the surface of the product, and performing electrophoretic coating to prevent rusting in different operating environments.

The working principle and the using process of the invention are as follows: when the user uses the rim 1, DW and DH agricultural or forestry tires can be used to mount to the rim 1.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.