CN216915387U - Wheel rim - Google Patents
Wheel rim Download PDFInfo
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- CN216915387U CN216915387U CN202220403789.5U CN202220403789U CN216915387U CN 216915387 U CN216915387 U CN 216915387U CN 202220403789 U CN202220403789 U CN 202220403789U CN 216915387 U CN216915387 U CN 216915387U
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- transition section
- arc
- rim
- side edge
- 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
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Abstract
The utility model provides a rim, wherein a circular groove is provided with a first end and a second end, one side of the first end is provided with a first arc-shaped transition section, a first side edge, a second arc-shaped transition section, a first horizontal edge, a third arc-shaped transition section, a second side edge, a fourth arc-shaped transition section, a third side edge, a fifth arc-shaped transition section and a first outer flange which extend upwards in an inclined mode in sequence from the direction far away from the second end; one side of the second end is provided with a sixth arc transition section, a fourth side edge, a seventh arc transition section, a second horizontal edge, an eighth arc transition section, a fifth side edge, a ninth arc transition section, a sixth side edge, a tenth arc transition section and a second outer flange which are inclined and extend upwards in sequence from the direction far away from the first end. The material thickness of all the arc transition sections is respectively larger than that of the two sides of each arc transition section. The dangerous section strength of the rim is improved, the service life of the rim can be prolonged, the purpose of controlling the weight is achieved, and the manufacturing cost can be reduced.
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 433mm, the outer diameter of the rim is 817.6mm, a circular groove is formed in the middle of the outer circumferential surface of the rim and circumferentially arranged along the outer circumferential surface of the rim, the width of the circular groove is 215mm, the inner diameter of the rim at the circular groove is 672.4mm, and the circular groove is provided with a first end and a second end; one side of the first end is provided with a first side edge, a second side edge, a third side edge and a first outer flange which extend obliquely and upwards in sequence from the direction far away from the second end, a first horizontal edge is arranged between the first side edge and the second side edge, the first end is connected with the first side edge through a first arc transition section, the first side edge is connected with the first horizontal edge through a second arc transition section, the first horizontal edge is connected with the second side edge through a third arc transition section, the second side edge is connected with the third side edge through a fourth arc transition section, and the third side edge is connected with the first outer flange through a fifth arc transition section; one side of the second end is provided with a fourth side edge, a fifth side edge, a sixth side edge and a second outer flange which incline upwards in sequence from the direction far away from the first end, a second horizontal edge is arranged between the fourth side edge and the fifth side edge, the second end is connected with the fourth side edge through a sixth arc transition section, the fourth side edge is connected with the second horizontal edge through a seventh arc transition section, the second horizontal edge is connected with the fifth side edge through an eighth arc transition section, the fifth side edge is connected with the sixth side edge through a ninth arc transition section, the sixth side edge is connected with the second outer flange through a tenth arc transition section, and the first arc transition section, the second arc transition section, the third arc transition section, the fourth arc transition section, the fifth arc transition section, the sixth arc transition section, The material thicknesses of the seventh arc transition section, the eighth arc transition section, the ninth arc transition section and the tenth arc transition section are respectively greater than the material thicknesses of two sides of each arc transition section.
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 to the third arc-shaped transition section and perpendicular to the outer peripheral surface of the circular groove, and the material thickness of the first arc-shaped section is greater than the material thicknesses of the first connecting section and the first outer side section.
Preferably, the second outer flange includes a second connecting section, a second arc-shaped section and a second outer section, the second connecting section is connected to the eighth arc-shaped transition section and perpendicular to the outer peripheral surface of the circular groove, and the material thickness of the second arc-shaped section is greater than the material thicknesses of the second connecting section and the second outer section.
Preferably, the width of each of the first outer flange and the second outer flange is 13.5mm, and the arc radius of each of the first arc-shaped segment and the second arc-shaped segment is 11 mm.
Preferably, the inclination angle of the first side is greater than the inclination angle of the third side, the inclination angle of the fourth side is greater than the inclination angle of the sixth side, and the inclination angles of the third side and the fifth side are both 5 °.
Preferably, the arc radii of the first arc transition section, the third arc transition section, the sixth arc transition section and the eighth arc transition section are 10mm, and the arc radii of the second arc transition section, the fourth arc transition section, the seventh arc transition section and the ninth arc transition section are 10 mm.
Preferably, the distance between the end of the second arc-shaped transition section far away from the first end and the end of the seventh arc-shaped transition section far away from the second end is 257mm, and the distance between the end of the first horizontal edge far away from the first end and the end of the second horizontal edge far away from the second end is 294 mm.
Preferably, the rim has an inner diameter at the first horizontal side of 700 mm.
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 peripheral surface of the rim.
Preferably, the rim is roll-formed by a cylindrical structure, the initial thickness of the cylindrical structure is 7-12mm, the material thickness of the first side, the second side, the third side, the fourth side, the fifth side and the first horizontal 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, the fourth arc-shaped transition section, the fifth arc-shaped transition section, the sixth arc-shaped transition section, the seventh arc-shaped transition section and the eighth 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 partial cross-sectional view of a rim of an embodiment of the present invention.
Description of reference numerals:
First side 101
First horizontal side 107
Second horizontal side 108
First curved transition section 111
Second arcuate transition section 112
Third arcuate transition segment 113
Fourth arcuate transition segment 114
Fifth arcuate transition segment 115
Sixth arcuate transition segment 116
Seventh arc transition 117
Eighth arc transition segment 118
Ninth arc transition 119
Tenth arc transition section 120
A first outer flange 130, a first connecting section 131, a first arc-shaped section 132, a first outer side section 133
A second outer flange 140, a second connecting section 141, a second arc-shaped section 142, and a second outer section 143
Air faucet mounting hole 200
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.
As shown in FIG. 1, the model of the rim is DW16 × 30, and the width of the rim is DW16 × 30
The outer diameter of the rim is
The middle part of the outer peripheral surface of the rim is provided with a circular groove 100 which is circumferentially arranged along the outer peripheral surface of the rim, the width of the circular groove 100 is 215mm, and the inner diameter of the rim at the circular groove 100 is 672.4 mm.
The annular groove 100 has a first end and a second end. One side of first end has slope first side 101 that upwards extends from the direction of keeping away from the second end in proper order, second side 102, third side 103 and first outer flange 130, first horizontal limit 107 has between first side 101 and the second side 102, first end is connected through first arc changeover portion 111 with first side 101, be connected through second arc changeover portion 112 between first side 101 and the first horizontal limit 107, be connected through third arc changeover portion 113 between first horizontal limit 107 and the second side 102, second side 102 is connected through fourth arc changeover portion 114 with third side 103, third side 103 is connected through fifth arc changeover portion 115 with first outer flange 130.
One side of the second end is provided with a fourth side 104, a fifth side 105, a sixth side 106 and a second outer flange 140 which are inclined upwards in sequence from the direction far away from the first end, a second horizontal edge 108 is arranged between the fourth side 104 and the fifth side 105, the second end is connected with the fourth side 104 through a sixth arc transition section 116, the fourth side 104 is connected with the second horizontal edge 108 through a seventh arc transition section 117, the second horizontal edge 108 is connected with the fifth side 105 through an eighth arc transition section 118, the fifth side 105 is connected with the sixth side 106 through a ninth arc transition section 119, and the sixth side 106 is connected with the second outer flange 140 through a tenth arc transition section 120.
The material thickness of the first arc transition section 111, the second arc transition section 112, the third arc transition section 113, the fourth arc transition section 114, the fifth arc transition section 115, the sixth arc transition section 116, the seventh arc transition section 117, the eighth arc transition section 118, the ninth arc transition section 119 and the tenth arc transition section 120 are respectively larger than the material thickness of two sides of each arc transition section. Here, the first arc transition section 111 is taken as an example: as shown in fig. 1, 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 at the corner is improved, and the overall weight of the rim is kept at a relatively low level, so as to achieve the purposes of reducing weight and cost while ensuring the overall strength of the rim.
The first outer flange 130 includes a first connecting section 131, a first arc-shaped section 132 and a first outer side section 133, the first connecting section 131 is connected to the third arc-shaped transition section 113 and perpendicular to the outer circumferential surface of the circular groove 100, and the material thickness of the first arc-shaped section 132 is greater than the material thickness of the first connecting section 131 and the first outer side section 133.
The second outer flange 140 includes a second connecting section 141, a second arc-shaped section 142 and a second outer section 143, the second connecting section 141 is connected to the eighth arc-shaped transition section 118 and is perpendicular to the outer circumferential surface of the annular groove 100, and the material thickness of the second arc-shaped section 142 is greater than the material thickness of the second connecting section 141 and the second outer section 143.
The first outer flange 130 and the second outer flange 140 each have a width
The arc radii of the first arc segment 132 and the second arc segment 142 are both 11 mm.
The angle of inclination of the first side 101 is greater than the angle of inclination of the third side 103, the angle of inclination of the fourth side 104 is greater than the angle of inclination of the sixth side 106, and the angle of inclination of the third side 103 and the angle of inclination of the fifth side 105 are both 5 °.
The arc radii of the first arc-shaped transition section, the third arc-shaped transition section, the sixth arc-shaped transition section and the eighth arc-shaped transition section 118 are 10mm, and the arc radii of the second arc-shaped transition section, the fourth arc-shaped transition section, the seventh arc-shaped transition section and the ninth arc-shaped transition section are 12.5 mm. The arc radius of the fifth arc transition section and the tenth arc transition section is 6 mm.
The distance between the end of the second arc-shaped transition section 112 away from the first end and the end of the seventh arc-shaped transition section 117 away from the second end is 257mm, and the distance between the end of the first horizontal edge 107 away from the first end and the end of the second horizontal edge 108 away from the second end is 294 mm.
The rim has an inner diameter at the first horizontal side 107 of 700 mm.
Air tap mounting holes 200 are also formed in the rim, and the air tap mounting holes 200 are formed in the outer peripheral surface of the rim on the side close to the second outer flange 140.
The rim is formed by rolling a cylindrical structure, the initial thickness of the cylindrical structure is 7-12mm, the material thickness of the first side edge 101, the second side edge 102, the third side edge 103, the fourth side edge 104, the fifth side edge 105 and the first horizontal edge 107 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 113, the fourth arc-shaped transition section 114, the fifth arc-shaped transition section 115, the sixth arc-shaped transition section 116, the seventh arc-shaped transition section 117 and the eighth arc-shaped transition section 118 is increased by 0.5-1.5mm compared with the initial thickness of the material.
Through changing the size of the forging inner die, the size gap at each arc transition section is enlarged, so that the material at other positions is extruded to move and thicken to the gap (namely, at the arc transition section), the intensity of the dangerous section at each arc transition section is greatly improved, and the service life is greatly prolonged.
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 appreciated 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 is characterized in that the width of the rim is 433mm, the outer diameter of the rim is 817.6mm, a circular groove is formed in the middle of the outer circumferential surface of the rim and circumferentially arranged along the outer circumferential surface of the rim, the width of the circular groove is 215mm, the inner diameter of the rim at the circular groove is 672.4mm, and the circular groove is provided with a first end and a second end; one side of the first end is provided with a first side edge, a second side edge, a third side edge and a first outer flange which extend obliquely and upwards in sequence from the direction far away from the second end, a first horizontal edge is arranged between the first side edge and the second side edge, the first end is connected with the first side edge through a first arc transition section, the first side edge is connected with the first horizontal edge through a second arc transition section, the first horizontal edge is connected with the second side edge through a third arc transition section, the second side edge is connected with the third side edge through a fourth arc transition section, and the third side edge is connected with the first outer flange through a fifth arc transition section; one side of the second end is provided with a fourth side edge, a fifth side edge, a sixth side edge and a second outer flange which incline upwards in sequence from the direction far away from the first end, a second horizontal edge is arranged between the fourth side edge and the fifth side edge, the second end is connected with the fourth side edge through a sixth arc transition section, the fourth side edge is connected with the second horizontal edge through a seventh arc transition section, the second horizontal edge is connected with the fifth side edge through an eighth arc transition section, the fifth side edge is connected with the sixth side edge through a ninth arc transition section, the sixth side edge is connected with the second outer flange through a tenth arc transition section, and the first arc transition section, the second arc transition section, the third arc transition section, the fourth arc transition section, the fifth arc transition section, the sixth arc transition section, The material thicknesses of the seventh arc transition section, the eighth arc transition section, the ninth arc transition section and the tenth arc transition section are respectively greater than the material thicknesses of two sides of each arc transition section.
2. The rim of claim 1, wherein the first outer flange includes a first connecting section, a first arcuate section, and a first outboard section, the first connecting section connecting with the third arcuate transition section and being perpendicular to the circumferential outer surface of the annular groove, the first arcuate section having a material thickness greater than the material thickness of the first connecting section and the first outboard section.
3. The wheel rim of claim 2, wherein the second outer flange includes a second connecting segment, a second arcuate segment, and a second outer segment, the second connecting segment being connected to the eighth arcuate transition segment and being perpendicular to the circumferential outer surface of the annular groove, the second arcuate segment having a material thickness greater than the material thickness of the second connecting segment and the second outer segment.
4. The wheel rim of claim 3, wherein the first outer flange and the second outer flange each have a width of 13.5mm and the first arcuate segment and the second arcuate segment each have an arc radius of 11 mm.
5. The rim of claim 1, wherein the angle of inclination of the first side is greater than the angle of inclination of the third side, the angle of inclination of the fourth side is greater than the angle of inclination of the sixth side, and the angle of inclination of the third side and the angle of inclination of the fifth side are both 5 °.
6. The wheel rim of claim 5, wherein the arc radii of the first, third, sixth and eighth arc transitions are 10mm, and the arc radii of the second, fourth, seventh and ninth arc transitions are 12.5 mm.
7. The wheel rim of claim 1, wherein the distance between the end of the second arcuate transition section distal from the first end and the end of the seventh arcuate transition section distal from the second end is 257mm, and the distance between the end of the first horizontal side distal from the first end and the end of the second horizontal side distal from the second end is 294 mm.
8. The rim of claim 1, wherein the rim has an inner diameter at the first horizontal side of 700 mm.
9. 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.
10. The rim according to any one of claims 1 to 9, wherein the rim is roll-formed by a cylindrical structure having an initial thickness of 7 to 12mm, the first side, the second side, the third side, the fourth side, the fifth side and the first horizontal side having a material thickness reduced by 0.5 to 3.5mm from the initial thickness, and the first curved transition, the second curved transition, the third curved transition, the fourth curved transition, the fifth curved transition, the sixth curved transition, the seventh curved transition and the eighth curved transition having a material thickness increased by 0.5 to 1.5mm from the initial thickness of the material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220403789.5U CN216915387U (en) | 2022-02-25 | 2022-02-25 | Wheel rim |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220403789.5U CN216915387U (en) | 2022-02-25 | 2022-02-25 | Wheel rim |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216915387U true CN216915387U (en) | 2022-07-08 |
Family
ID=82267495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220403789.5U Active CN216915387U (en) | 2022-02-25 | 2022-02-25 | Wheel rim |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216915387U (en) |
-
2022
- 2022-02-25 CN CN202220403789.5U patent/CN216915387U/en active Active
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