CN216915372U - Wheel rim - Google Patents
Wheel rim Download PDFInfo
- Publication number
- CN216915372U CN216915372U CN202220401941.6U CN202220401941U CN216915372U CN 216915372 U CN216915372 U CN 216915372U CN 202220401941 U CN202220401941 U CN 202220401941U CN 216915372 U CN216915372 U CN 216915372U
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- arc
- section
- rim
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- transition section
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Abstract
The utility model provides a rim, wherein a circular groove arranged along the circumferential direction of the outer peripheral surface of the rim is arranged in the middle of the outer peripheral surface of the rim, and a first arc-shaped transition section, a first side edge, a second arc-shaped transition section and a first outer flange are sequentially arranged on one side of a first end of the circular groove; one side of the second end of the circular ring-shaped groove is sequentially provided with a third arc-shaped transition section, a second side edge, a fourth arc-shaped transition section and a second outer flange, and the material thickness of the first arc-shaped transition section, the second arc-shaped transition section, the third arc-shaped transition section and the fourth arc-shaped transition section is equal to the material thickness of two sides of each arc-shaped transition section. This rim is through increasing the material thickness of each arc changeover portion department for the dangerous section intensity of each arc changeover portion of rim improves, and the life of rim can promote, realizes the purpose of control weight, can also reduce manufacturing cost.
Description
Technical Field
The utility model relates to a rim.
Background
The rim, commonly known as a rim, is a component that mounts and supports the tire on the wheel at its upper periphery, and forms the wheel with the spokes. The common forms of rims are mainly two: drop center rims and flat bottom rims. For a drop center rim, the rim is unitary with a drop center in cross-section. It has a flange with shoulder for receiving the tyre bead of the tyre casing, the shoulder is usually inclined slightly towards the middle, and the maximum diameter of the inclined part is called the diameter of the tyre bead and the rim. The middle part of the cross section is made into a deep groove so as to be convenient for the disassembly and assembly of the outer tire. The deep groove rim has simple structure, high rigidity and small mass, and is most suitable for small-size tires with high elasticity.
Along with agricultural mechanical equipment's weight increases gradually, has proposed higher requirement to the structural strength and the bearing capacity of rim, and at present, the mode of solving promotion rim structural strength chooses for use thicker material, the steel manufacturing rim of higher strength, but can lead to the dead weight of rim to rise, the cost height.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of heavy weight, high cost and low strength of a rim in the prior art, and provides the rim.
The utility model solves the technical problems through the following technical scheme:
a rim is characterized in that the width of the rim is 287mm, the outer diameter of the rim is 639.4mm, the middle part of the outer circumferential surface of the rim is provided with a circular ring-shaped groove arranged along the circumferential direction of the outer circumferential surface of the rim, the inner diameter of the rim at the circular ring-shaped groove is 560.3mm, and the circular ring-shaped groove is provided with a first end and a second end; one side of the first end is provided with a first side edge and a first outer flange which extend obliquely outwards in sequence from the direction far away from the second end, the first end is connected with the first side edge through a first arc-shaped transition section, and the first side edge is connected with the first outer flange through a second arc-shaped transition section; one side of second end is from keeping away from the direction of first end has the second side edge and the second outer flange that extend that lean out in proper order, the second end with the second side edge passes through the third arc changeover portion and connects, the second side edge with the second outer flange passes through the fourth arc changeover portion and connects, first arc changeover portion the second arc changeover portion third arc changeover portion with the material thickness of fourth arc changeover portion is equallyd divide and is greater than the material thickness of every arc changeover portion both sides respectively.
Preferably, the first outer flange includes a first connecting section, a first arc-shaped section and a first outer side section, the first connecting section is connected with the second arc-shaped transition section and extends obliquely outwards, and the material thickness of the first arc-shaped section is larger than that of the first connecting section and the first outer side section; and/or the presence of a gas in the gas,
the second outer flange comprises a second connecting section, a second arc-shaped section and a second outer side section, the second connecting section is connected with the third arc-shaped transition section and extends outwards in an inclined mode, and the material thickness of the second arc-shaped section is larger than that of the second connecting section and that of the second outer side section.
Preferably, the first outer section and the second outer section each extend obliquely inwardly.
Preferably, the width of each of the first outer flange and the second outer flange is 16.5mm, and the arc radius of each of the first arc-shaped section and the second arc-shaped section is 10.2 mm.
Preferably, the first arc-shaped transition section comprises a first sub-arc section and a second sub-arc section, the first sub-arc section is connected between a first end of the circular groove and the second sub-arc section, one end of the first sub-arc section, which is far away from the first end, extends towards the outer side of the rim, and one end of the second sub-arc section, which is far away from the first sub-arc section, extends towards the inner side of the rim; and/or the presence of a gas in the gas,
the third arc transition section comprises a third sub-arc section and a fourth sub-arc section, the third sub-arc section is connected to the second end of the circular groove and between the fourth sub-arc sections, the third sub-arc section is far away from one end of the second end extends to the outer side of the rim, and the fourth sub-arc section is far away from one end of the third sub-arc section extends to the inner side of the rim.
Preferably, the arc radii of the first sub-arc segment and the third sub-arc segment are both 10 mm; and/or the presence of a gas in the gas,
the arc radiuses of the second sub-arc section and the fourth sub-arc section are both 13.5 mm.
Preferably, an included angle between the extension line of the first side edge and the axis of the rim is equal to an included angle between the extension line of the second side edge and the axis of the rim;
and an included angle between the extension line of the first side edge and the axis of the rim and an included angle between the extension line of the second side edge and the axis of the rim are both 5 degrees.
Preferably, the rim is further provided with an air tap mounting hole, and the air tap mounting hole is formed in one side, close to the second outer flange, of the outer circumferential surface of the rim.
Preferably, the diameter of the air tap mounting hole is 15.7 mm.
Preferably, the rim is roll-formed by a cylindrical structure, the initial thickness of the cylindrical structure is 5-12mm, the material thickness of the first side and the second side is reduced by 0.5-3.5mm compared with the initial thickness, and the material thickness of the first arc-shaped transition section, the second arc-shaped transition section, the third arc-shaped transition section and the fourth arc-shaped transition section is increased by 0.5-1.5mm compared with the initial thickness of the material.
The positive progress effects of the utility model are as follows:
this rim is through the material thickness that increases each arc changeover portion for the dangerous section intensity of each arc changeover portion of rim improves, and the life of rim can promote. Meanwhile, the material thickness of the two sides of each arc transition section of the rim is controlled, so that the material thickness of the two sides of each arc transition section is smaller than that of each arc transition section, the purpose of controlling the weight is achieved, and the manufacturing cost can be reduced.
Drawings
Fig. 1 is a schematic structural view of a rim according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view (one) of a rim according to an embodiment of the present invention.
Fig. 3 is a sectional view (two) of a rim according to an embodiment of the present invention.
Description of reference numerals:
Inner side 12 of rim
First arcuate transition section 111
First sub-arc 1111
Second sub-arc segment 1112
Second arcuate transition section 112
Third arcuate transition segment 115
Third sub-arc 1151
Fourth sub-arc 1152
Fourth arcuate transition segment 116
First outer flange 120
First outer section 123
Second outer flange 130
Second outer section 133
Air tap mounting hole 140
Detailed Description
The present invention will be more clearly and completely described in the following description of preferred embodiments, taken in conjunction with the accompanying drawings.
The utility model provides a rim 10 with the model number of OTR10 multiplied by 24, the structure of which is shown in figure 1, the width L of the rim 101287 +/-6.5 mm, and the outer diameter phi of the rim 101Is composed of
The middle part of the outer peripheral surface of the rim 10 is provided with a circular ring-shaped groove 100 arranged along the circumferential direction of the outer peripheral surface of the rim 10, and the inner diameter phi of the rim 10 at the circular ring-shaped groove 1002560.3 + -1.5 mm.
Specifically, as shown in fig. 2, the circular groove 100 has a first end and a second end; one side of the first end is provided with a first side edge 101 and a first outer flange 120 which extend obliquely outwards in sequence from the direction far away from the second end, the first end is connected with the first side edge 101 through a first arc-shaped transition section 111, and the first side edge 101 is connected with the first outer flange 120 through a second arc-shaped transition section 112; one side of the second end is provided with a second side edge 105 and a second outer flange 130 which extend obliquely outwards in sequence from the direction far away from the first end, the second end is connected with the second side edge 105 through a third arc-shaped transition section 115, the second side edge 105 is connected with the second outer flange 130 through a fourth arc-shaped transition section 116, and the material thickness of the first arc-shaped transition section 111, the second arc-shaped transition section 112, the third arc-shaped transition section 115 and the fourth arc-shaped transition section 116 is respectively greater than that of two sides of each arc-shaped transition section.
It should be noted that the first side edge 101 extends obliquely outward, that is, the first side edge 101 extends obliquely toward the outer side 11 of the rim, specifically, an end of the first side edge 101 away from the first end extends obliquely toward the outer side 11 of the rim. Likewise, the second side edge 105 extends obliquely outward, i.e. the second side edge 105 extends obliquely toward the outer side 11 of the rim, and the end of the second side edge 105 remote from the second end extends obliquely toward the outer side 11 of the rim.
In this embodiment, the material thickness of each of the first, second, third and fourth curved transition sections 111, 112, 115 and 116 is greater than the material thickness of each of the two sides of the curved transition sections. Here, the first arc transition section 111 is taken as an example: as shown in the figure, the two sides of the first arc-shaped transition section 111 are respectively the circular ring-shaped groove 100 and the first side 101, and the material thickness of the first arc-shaped transition section 111 is thicker than that of the circular ring-shaped groove 100 and the first side 101, so that the structural strength of the rim 10 at the corner is improved, and the overall weight of the rim 10 is kept at a relatively low level, so that the purposes of reducing weight, cost and the like are achieved while the overall strength of the rim 10 is ensured.
This rim 10 through the material thickness that increases each arc changeover portion for the dangerous section intensity of each arc changeover portion of rim 10 improves, and the life of rim 10 can promote. Meanwhile, the material thickness of the two sides of each arc transition section of the rim 10 is controlled, so that the material thickness of the two sides of each arc transition section is smaller than that of each arc transition section, the purpose of controlling the weight is achieved, and the manufacturing cost can be reduced.
Specifically, as shown in fig. 2, the first outer flange 120 includes a first connection section 121, a first arc-shaped section 122 and a first outer side section 123 which are connected in sequence, the first connection section 121 is connected to the second arc-shaped transition section 112 and extends obliquely outward, and the material thickness of the first arc-shaped section 122 is greater than that of the first connection section 121 and the first outer side section 123, so that the strength at the first arc-shaped section 122 of the first outer flange 120 is enhanced. In addition, the second outer flange 130 includes a second connection section 131, a second arc-shaped section 132 and a second outer section 133 which are connected in sequence, the second connection section 131 is connected with the third arc-shaped transition section 115 and extends obliquely outward, and the material thickness of the second arc-shaped section 132 is greater than that of the second connection section 131 and the second outer section 133, so that the strength at the second arc-shaped section 132 of the second outer flange 130 is also enhanced.
The first and second outer sections 123, 133 each extend obliquely inwardly, i.e. the first and second outer sections 123, 133 each extend obliquely towards the inner side 12 of the rim.
In the present embodiment, the rim 10 has a bisecting plane a in the width direction W, and the rim 10 is symmetrically disposed along the bisecting plane a.
As shown in fig. 2 and 3, the first outer flange 120 and the second outer flange 130 of the rim 10 are symmetrically disposed at two ends of the circular groove 100, the first outer flange 120 and the second outer flange 130 have the same size, and the width D of the first outer flange 120 and the second outer flange 130116.5 + -2 mm, wherein the arc radii R of the first arc-shaped segment 122 and the second arc-shaped segment 1321Are all 10.2 mm.
Specifically, in the present embodiment, the first arc-shaped transition section 111 includes a first sub-arc section 1111 and a second sub-arc section 1112, the first sub-arc section 1111 is connected between the first end of the circular groove 100 and the second sub-arc section 1112, an end of the first sub-arc section 1111 away from the first end extends toward the outer side 11 of the rim, and an end of the second sub-arc section 1112 away from the first sub-arc section 1111 extends toward the inner side 12 of the rim. The third arc-shaped transition section 115 comprises a third sub-arc section 1151 and a fourth sub-arc section 1152, the third sub-arc section 1151 is connected between the second end of the circular groove 100 and the fourth sub-arc section 1152, one end of the third sub-arc section 1151 far away from the second end extends to the outer side 11 of the rim, and one end of the fourth sub-arc section 1152 far away from the third sub-arc section 1151 extends to the inner side 12 of the rim.
Arc radius R of the first sub-arc segment 1111 and the third sub-arc segment 11512Are all 10 mm; arc radii R of second sub-arc segment 1112 and fourth sub-arc segment 11523Are all 13.5 mm.
Arc radius R of second arc transition segment 112 and fourth arc transition segment 1164Are all 6.4 mm.
An included angle α between the extension line of the first side 101 and the axis P of the rim 10 is equal to an included angle β between the extension line of the second side 105 and the axis P of the rim 10, that is, the inclined angle of the first side 101 and the second side 105 is the same. Preferably, the angle α between the extension of the first side edge 101 and the axis P of the rim 10 and the angle β between the extension of the second side edge 105 and the axis P of the rim 10 are both 5 degrees.
As shown in fig. 1, an air nozzle mounting hole 140 is further provided in the rim 10, and the air nozzle mounting hole 140 is provided on the outer peripheral surface of the rim 10 on the side close to the second outer flange 130, specifically, on the surface of the second side edge 105. The diameter phi of the nozzle mounting hole 1404Is 15.7 mm.
In this embodiment, the rim 10 is made of medium carbon steel of 440 or less, and is formed by a cylindrical rolling process. Wherein the initial thickness of the cylindrical structure is 5-12mm, the material thickness of the first side 101 and the second side 105 is reduced by 0.5-3.5mm compared with the initial thickness, and the material thickness of the first arc-shaped transition section 111, the second arc-shaped transition section 112, the third arc-shaped transition section 115 and the fourth arc-shaped transition section 116 is increased by 0.5-1.5mm compared with the initial thickness of the material. By thinning the material at each side portion, the thinned material is supplied to each arcuate transition section for the purpose of thickening the material thickness of the arcuate transition section.
The rim among the prior art adopts alloy steel material usually, because alloy steel material plasticity is not good, easy fracture, and the rejection rate is high, consequently can not adopt the mode of each arc transition section thickness of bodiness to strengthen rim intensity, the thickness everywhere of rim all is the uniform thickness usually. The plasticity of the common steel plate including the medium carbon steel is better, the strength of the obtained rim is higher by reducing the material thickness of each side edge and increasing the material thickness of each arc transition section, and the bench test can reach 100 ten thousand times, which is far higher than the test standard of 36 ten thousand times of the conventional rim made of alloy steel materials.
Specifically, the rim that this embodiment provided utilizes circumference forging itself in order to increase material strength, and through changing the mould size of forging, enlarge the size clearance of each arc transition department, make the material extrusion of other positions punishment remove the bodiness to clearance department (be arc transition department promptly) for dangerous section strength at each arc transition department improves greatly, and life will promote greatly.
The rim provided by the embodiment is formed in one step by adopting an innovative six-column cold rolling forging mode, and the rim formed in one step is formed by performing ten thousand tons of cold rolling forging on the circumference of the rim, so that the rim with good rigidity, light weight and high strength is formed, and under the condition of the same material, the weight can be reduced to produce the light rim, and the production mode of the traditional rim is thoroughly changed. The traditional three horizontal cold rolling and rolling machines are changed into a vertical rolling and forming machine, the production process is simplified, the production speed is improved, and more importantly, the existing process of stretching, bending and deforming is changed into the process of forging, extruding and deforming by ten thousand tons of circumference, so that the stretching and yield strength of the rim material can be improved, and the service life is prolonged. The rim drum test can be performed more than 100 times, the service life of the bench test is long, and the actual service life is greatly prolonged.
While specific embodiments of the utility model have been described above, it will be understood by those skilled in the art that this is by way of example only, and that the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the utility model, and these changes and modifications are within the scope of the utility model.
Claims (10)
1. A rim, characterized in that the rim has a width of 287mm, the rim has an outer diameter of 639.4mm, the middle part of the outer circumferential surface of the rim has a circular ring-shaped groove circumferentially arranged along the outer circumferential surface of the rim, the rim has an inner diameter of 560.3mm at the circular ring-shaped groove, and the circular ring-shaped groove has a first end and a second end; one side of the first end is provided with a first side edge and a first outer flange which extend obliquely outwards in sequence from the direction far away from the second end, the first end is connected with the first side edge through a first arc-shaped transition section, and the first side edge is connected with the first outer flange through a second arc-shaped transition section; one side of second end is from keeping away from the direction of first end has the second side edge and the second outer flange that extend that lean out in proper order, the second end with the second side edge passes through the third arc changeover portion and connects, the second side edge with the second outer flange passes through the fourth arc changeover portion and connects, first arc changeover portion the second arc changeover portion third arc changeover portion with the material thickness of fourth arc changeover portion is equallyd divide and is greater than the material thickness of every arc changeover portion both sides respectively.
2. The wheel rim of claim 1, wherein the first outer flange includes a first connecting section connected to the second arcuate transition section and extending obliquely outwardly, a first arcuate section having a material thickness greater than a material thickness of the first connecting section and the first outer section; and/or the presence of a gas in the gas,
the second outer flange comprises a second connecting section, a second arc-shaped section and a second outer side section, the second connecting section is connected with the third arc-shaped transition section and extends outwards in an inclined mode, and the material thickness of the second arc-shaped section is larger than that of the second connecting section and that of the second outer side section.
3. The wheel rim of claim 2, wherein the first outer section and the second outer section each extend obliquely inwardly.
4. The wheel rim of claim 2, wherein the first outer flange and the second outer flange each have a width of 16.5mm and the first arcuate segment and the second arcuate segment each have an arc radius of 10.2 mm.
5. The wheel rim of claim 1, wherein the first arcuate transition section comprises a first sub-arc section and a second sub-arc section, the first sub-arc section is connected between a first end of the annular groove and the second sub-arc section, an end of the first sub-arc section remote from the first end extends toward an outer side of the wheel rim, and an end of the second sub-arc section remote from the first sub-arc section extends toward an inner side of the wheel rim; and/or the presence of a gas in the gas,
the third arc transition section comprises a third sub-arc section and a fourth sub-arc section, the third sub-arc section is connected between the second end of the circular groove and the fourth sub-arc section, one end of the second end of the third sub-arc section extends to the outer side of the rim, and one end of the third sub-arc section is far away from the fourth sub-arc section extends to the inner side of the rim.
6. The wheel rim of claim 5, wherein the arc radii of the first and third sub-arcs are each 10 mm; and/or the presence of a gas in the gas,
the arc radiuses of the second sub-arc section and the fourth sub-arc section are both 13.5 mm.
7. The rim according to claim 1, characterized in that the angle between the extension of the first side and the axis of the rim is equal to the angle between the extension of the second side and the axis of the rim;
and an included angle between the extension line of the first side edge and the axis of the rim and an included angle between the extension line of the second side edge and the axis of the rim are both 5 degrees.
8. The rim according to claim 1, further comprising air nozzle mounting holes formed in the rim on a side of the outer peripheral surface of the rim adjacent to the second outer flange.
9. The wheel rim of claim 8, wherein the air cap mounting hole has a diameter of 15.7 mm.
10. The rim according to any one of claims 1 to 9, wherein the rim is roll-formed from a cylindrical structure having an initial thickness of 5 to 12mm, the first and second sides having a material thickness reduced by 0.5 to 3.5mm compared to the initial thickness, and the first, second, third and fourth transitions having a material thickness increased by 0.5 to 1.5mm compared to the initial thickness of the material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220401941.6U CN216915372U (en) | 2022-02-25 | 2022-02-25 | Wheel rim |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220401941.6U CN216915372U (en) | 2022-02-25 | 2022-02-25 | Wheel rim |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216915372U true CN216915372U (en) | 2022-07-08 |
Family
ID=82266096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220401941.6U Active CN216915372U (en) | 2022-02-25 | 2022-02-25 | Wheel rim |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216915372U (en) |
-
2022
- 2022-02-25 CN CN202220401941.6U patent/CN216915372U/en active Active
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