CN216915367U - Wheel rim - Google Patents
Wheel rim Download PDFInfo
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- CN216915367U CN216915367U CN202220394776.6U CN202220394776U CN216915367U CN 216915367 U CN216915367 U CN 216915367U CN 202220394776 U CN202220394776 U CN 202220394776U CN 216915367 U CN216915367 U CN 216915367U
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- arc
- rim
- transition section
- section
- side edge
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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 the middle part of the outer peripheral surface of the rim is provided with a circular groove which is circumferentially arranged along the outer peripheral surface of the rim, 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 and a first outer flange which are connected through an arc transition section and 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 third side edge and a fourth side edge which are connected through an arc transition section and extend upwards in an inclined mode and a second outer flange in sequence from the direction far away from the first end, and the material thickness of the arc transition section is respectively larger than that of two sides of each arc 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, the width of the rim is 229.2mm, the outer diameter of the rim is 659.4mm, the middle part of the outer circumferential surface of the rim is provided with an annular groove arranged along the circumferential direction of the outer circumferential surface of the rim, the width of the annular groove is 83.2mm, the inner diameter of the rim at the annular groove is 563mm, and the annular groove is provided with a first end and a second end; a first side edge, a second side edge and a first outer flange which extend obliquely and upwards are sequentially arranged on one side of the first end 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, the first side edge is connected with the second side edge through a second arc-shaped transition section, and the second side edge is connected with the first outer flange through a third arc-shaped transition section; one side of the second end is provided with a third side edge and a fourth side edge which are inclined and extend upwards and a second outer flange in sequence from the direction far away from the first end, the second end is connected with the third side edge through a fourth arc transition section, the third side edge is connected with the fourth side edge through a fifth arc transition section, the fourth side edge is connected with the second outer flange through a sixth arc transition section, and the material thickness of 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 and the sixth arc transition section is equal to the material thickness 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 sixth arc-shaped transition section and perpendicular to the outer circumferential 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 13mm, and the arc radius of each of the first arc-shaped section and the second arc-shaped section is 8 mm.
Preferably, the inclination angle of the first side is greater than the inclination angle of the second side, the inclination angle of the third side is greater than the inclination angle of the fourth side, and the inclination angle of the second side and the inclination angle of the fourth side are both 5 °.
Preferably, the arc radii of the first arc-shaped transition section and the fourth arc-shaped transition section are 8mm, the arc radii of the second arc-shaped transition section and the fifth arc-shaped transition section are 12mm, and the arc radii of the third arc-shaped transition section and the sixth arc-shaped transition section are 6 mm.
Preferably, the rim has a median plane in the width direction, the distance between the first end and the median plane is 41.6mm, and the distance between the second end and the median plane is 41.6 mm;
the distance between one end of the second side edge close to the first end and the first outer flange is 30mm, and the distance between one end of the fourth side edge close to the second end and the second outer flange is 30 mm.
Preferably, the rim is further provided with an air tap mounting hole, and the air tap mounting hole is formed in the position, close to the first end of the annular groove, of the outer peripheral surface of the rim.
Preferably, the wheel rims are symmetrically arranged by taking the bisection plane as a central plane.
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 and the fourth 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 and the sixth 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: according to the rim, the material thickness of each arc transition section is increased, so that the dangerous section strength of each arc transition section of the rim is improved, and the service life of the rim can be prolonged. 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 partial cross-sectional view of a rim of an embodiment of the present invention.
Description of reference numerals:
First arcuate 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
First outer section 123
Second outer section 133
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.
1-2, embodiments of the present invention are provided with a rim model W8X 24 having a width L1Is composed of
Outer diameter phi of rim1Is composed of
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 83.2 +/-2.5 mm, and the rim is arranged in the circular groove 1Internal diameter phi at 002Is composed of
Specifically, as shown in fig. 2, the circular groove 100 has a first end and a second end; a first side edge 101, a second side edge 102 and a first outer flange which extend obliquely upwards are sequentially arranged on one side of the first end 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, the first side edge 101 is connected with the second side edge 102 through a second arc-shaped transition section 112, and the second side edge 102 is connected with the first outer flange through a third arc-shaped transition section 113; one side of the second end is provided with a third side edge 103, a fourth side edge 104 and a second outer flange which extend obliquely upwards in sequence from the direction far away from the first end, the second end and the third side edge 103 are connected through a fourth arc-shaped transition section 114, the third side edge 103 and the fourth side edge 104 are connected through a fifth arc-shaped transition section 115, and the fourth side edge 104 and the second outer flange are connected through a sixth arc-shaped transition section 116.
In this embodiment, 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 and the sixth arc transition section 116 is respectively greater than the material thickness of the two sides of each arc transition section. Here, the first arc transition section 111 is taken as an example: as shown in fig. 2, two sides of the first arc-shaped transition section 111 are respectively a cylinder where the circular groove 100 is located and the first side 101, and the material thickness of the first arc-shaped transition section 111 is thicker than the cylinder and the first side 101 at the position of the circular groove 100. The structural strength of the rim at the corner is improved, and the whole weight of the rim is kept at a relatively low level, so that the purposes of reducing weight, lowering cost and the like are achieved while the whole strength of the rim is ensured. 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.
As shown in fig. 2, the first outer flange includes a first connection section 121, a first arc-shaped section 122 and a first outer side section 123, the first connection section 121 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 122 is greater than the material thickness 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 is enhanced. The second outer flange includes a second connecting section 131, a second arc-shaped section 132 and a second outer section 133, the second connecting section 131 is connected with the sixth arc-shaped transition section 116 and perpendicular to the outer circumferential surface of the circular groove 100, and the material thickness of the second arc-shaped section 132 is greater than that of the second connecting section 131 and the second outer section 133, so that the strength at the second arc-shaped section 132 of the second outer flange is also enhanced.
In this embodiment, as shown in fig. 2, the first outer flange and the second outer flange have the same size, and both the first outer flange and the second outer flange have the same width
The arc radii of the first arc segment 122 and the second arc segment 132 are both 8 mm.
In this embodiment, the inclination angle of the first side 101 is greater than that of the second side 102, the inclination angle of the third side 103 is greater than that of the fourth side 104, and both the inclination angles of the second side 102 and the fourth side 104 are 5 °.
The arc radii of the first arc transition section 111 and the fourth arc transition section 114 are 8mm, the arc radii of the second arc transition section 112 and the fifth arc transition section 115 are 12mm, and the arc radii of the third arc transition section 113 and the sixth arc transition section 116 are 6 mm.
As shown in fig. 2, the rim has a median plane (position of a dotted line in the drawing) in the width direction, and the first end is 41.6mm away from the median plane and the second end is 41.6mm away from the median plane.
The end of the second side 102 near the first end is 30mm from the first outer flange and the end of the fourth side 104 near the second end is 30mm from the second outer flange. The wheel rims are symmetrically arranged by taking the middle division plane as a central plane.
As shown in fig. 2, the rim is further provided with air nozzle mounting holes 200, and the air nozzle mounting holes 200 are disposed on the outer circumferential surface of the rim near the first end of the circular groove 100, specifically, on the surface of the first arc-shaped transition section 111. The nozzle mounting hole 200 has a diameter of 15.7 mm.
The material of the rim in the embodiment is medium carbon steel below 440, and the rim is formed by a cylindrical structure rolling process. Wherein the initial thickness of the cylindrical structure is 7-12mm, the material thickness for the first side 101, the second side 102, the third side 103 and the fourth side 104 is reduced by 0.5-3.5mm compared to the initial thickness, and the material thickness at 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 and the sixth arc-shaped transition section 116 is increased by 0.5-1.5mm compared to the initial thickness of the material. By thinning the material at each side portion, the thinned material is supplied to each arcuate transition for the purpose of thickening the material thickness of the arcuate transition.
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 department move the bodiness to clearance department (arc transition department promptly) for dangerous section intensity 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 one vertical rolling and forming machine, so that 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, characterized in that the width of the rim is 229.2mm, the outer diameter of the rim is 659.4mm, the middle part of the outer circumferential surface of the rim is provided with an annular groove arranged along the circumferential direction of the outer circumferential surface of the rim, the width of the annular groove is 83.2mm, the inner diameter of the rim at the annular groove is 563mm, and the annular groove is provided with a first end and a second end; a first side edge, a second side edge and a first outer flange which extend obliquely and upwards are sequentially arranged on one side of the first end 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, the first side edge is connected with the second side edge through a second arc-shaped transition section, and the second side edge is connected with the first outer flange through a third arc-shaped transition section; one side of the second end is provided with a third side edge and a fourth side edge which are inclined and extend upwards and a second outer flange in sequence from the direction far away from the first end, the second end is connected with the third side edge through a fourth arc transition section, the third side edge is connected with the fourth side edge through a fifth arc transition section, the fourth side edge is connected with the second outer flange through a sixth arc transition section, and the material thickness of 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 and the sixth arc transition section is equal to the material thickness 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 sixth arcuate transition segment and perpendicular to the outer circumferential 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 13mm and the first arcuate segment and the second arcuate segment each have an arc radius of 8 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 second side, the angle of inclination of the third side is greater than the angle of inclination of the fourth side, and the angle of inclination of the second side and the angle of inclination of the fourth side are both 5 °.
6. The wheel rim of claim 5, wherein the arc radius of the first arc transition and the fourth arc transition is 8mm, the arc radius of the second arc transition and the fifth arc transition is 12mm, and the arc radius of the third arc transition and the sixth arc transition is 6 mm.
7. The rim of claim 1, wherein the rim has a bisecting plane in the width direction, the first end being 41.6mm from the bisecting plane, and the second end being 41.6mm from the bisecting plane;
the distance between one end of the second side edge close to the first end and the first outer flange is 30mm, and the distance between one end of the fourth side edge close to the second end and the second outer flange is 30 mm.
8. The rim of claim 1, further comprising an air nozzle mounting hole formed in the rim at a location on the outer peripheral surface of the rim proximate the first end of the annular recess.
9. The wheel rim of claim 7, wherein the wheel rim is symmetrically arranged about the bisecting plane.
10. The wheel rim according to any one of claims 1 to 9, wherein the wheel rim is roll-formed by a cylindrical structure, the initial thickness of the cylindrical structure is 7 to 12mm, the material thickness of the first side, the second side, the third side and the fourth side is reduced by 0.5 to 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 and the sixth arc-shaped transition section is increased by 0.5 to 1.5mm compared with the initial thickness of the material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220394776.6U CN216915367U (en) | 2022-02-25 | 2022-02-25 | Wheel rim |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220394776.6U CN216915367U (en) | 2022-02-25 | 2022-02-25 | Wheel rim |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216915367U true CN216915367U (en) | 2022-07-08 |
Family
ID=82267737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220394776.6U Active CN216915367U (en) | 2022-02-25 | 2022-02-25 | Wheel rim |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216915367U (en) |
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2022
- 2022-02-25 CN CN202220394776.6U patent/CN216915367U/en active Active
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