CN216915385U - Wheel rim - Google Patents
Wheel rim Download PDFInfo
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- CN216915385U CN216915385U CN202220403717.0U CN202220403717U CN216915385U CN 216915385 U CN216915385 U CN 216915385U CN 202220403717 U CN202220403717 U CN 202220403717U CN 216915385 U CN216915385 U CN 216915385U
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- arc
- rim
- side edge
- material thickness
- 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
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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 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 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, a fourth side edge and a second outer flange which extend upwards in an inclined mode in sequence from the direction far away from the first end; the material thickness of the first arc transition section, the second arc transition section, the fourth arc transition section and the fifth arc transition section is respectively larger than the material thickness of two sides of each arc transition section, the material thickness of the third arc transition section is larger than the material thickness of the second side edge, and the material thickness of the sixth arc transition section is larger than the material thickness of the fourth side edge. 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, 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 for mounting and supporting a tire on the upper periphery of a wheel, and forms the wheel with 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 dismounting of the outer tyre. 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 378mm, the outer diameter of the rim is 419.1mm, 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 100mm, the inner diameter of the rim at the annular groove is 318.7mm, 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 are sequentially arranged on one side of the first end from the direction far away from the second end, the first side edge and the second side edge extend obliquely upwards, 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-shaped transition section, the first side edge is connected with the first horizontal edge through a second arc-shaped transition section, the horizontal edge is connected with the second side edge, and the second side edge is connected with the first outer flange through a third arc-shaped transition section;
a third side edge, a fourth side edge and a second outer flange which extend obliquely and upwards are sequentially arranged on one side of the second end from the direction far away from the first end, the second end is connected with the third side edge through a fourth arc-shaped transition section, the third side edge is connected with the fourth side edge through a fifth arc-shaped transition section, and the fourth side edge is connected with the second outer flange through a sixth arc-shaped transition section;
first arc changeover portion second arc changeover portion fourth arc changeover portion with the material thickness of fifth arc changeover portion is equallyd divide and is greater than the material thickness of every arc changeover portion both sides respectively, the material thickness of third arc changeover portion is greater than the material thickness of second side, the material thickness of sixth arc changeover portion is greater than the material thickness of fourth side.
Preferably, the first outer flange includes a first arcuate segment and a first outboard segment, the first arcuate segment being connected to the third arcuate transition segment, the first arcuate segment having a material thickness greater than a material thickness of the first outboard segment.
Preferably, the second outer flange includes a second arcuate segment and a second outer segment, the second arcuate segment being connected to the sixth arcuate transition segment, the second arcuate segment having a material thickness greater than a material thickness of the second outer segment.
Preferably, the width of each of the first outer flange and the second outer flange is 24mm, and the arc radius of each of the first arc-shaped section and the second arc-shaped section is 12.7 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 15 °.
Preferably, the arc radius of the first arc transition section and the fourth arc transition section is 14.5mm, the arc radius of the second arc transition section and the fifth arc transition section is 14.5mm, and the arc radius of the third arc transition section and the sixth arc transition section is 6.5 mm.
Preferably, the rim has a median plane in the width direction, the first end is located on the median plane, the second end is located at a distance of 100mm from the median plane, and the second end is located at a distance of 65mm from the second outer flange;
the distance from one end, far away from the first end, of the second side edge to the outer periphery of the first outer flange is 12.7mm, and the distance from one end, far away from the second end, of the fourth side edge to the outer periphery of the second outer flange is 12.7 mm.
Preferably, the distance between the end of the second side edge far away from the first end and the first horizontal edge in the radial direction of the rim is 11 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, an initial thickness of the cylindrical structure is 7-12mm, material thicknesses of the first side edge, the second side edge, the third side edge, the fourth side edge and the first horizontal edge are reduced by 0.5-3.5mm compared with the initial thickness, and material thicknesses 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 are 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 horizontal side 105
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.
As shown in FIGS. 1-2, embodiments of the present invention provide a rim having a size of 15.5X 13 and a width L1378 +/-11 mm, the outer diameter phi of the wheel rim1419.1 + -0.4 mm, the middle part of the outer peripheral surface of the rim has an outer peripheral surface along the rimA circular ring-shaped groove 100 arranged circumferentially, the width of the circular ring-shaped groove 100 is 100mm, and the inner diameter phi of the rim at the circular ring-shaped groove 1002318.7 + -0.5 mm.
Specifically, as shown in fig. 2, the circular groove 100 has a first end and a second end. One side of first end has slope first side 101 and the second side 102 and the first outer flange that upwards extends in proper order from the direction of keeping away from the second end, has first horizontal limit 105 between first side 101 and the second side 102, first end is connected through first arc changeover portion 111 with first side 101, first side 101 passes through second arc changeover portion 112 with first horizontal limit 105 and is connected, the horizontal limit is connected with second side 102, second side 102 passes through third arc changeover portion 113 with first outer flange and is connected. 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 is connected with the third side edge 103 through a fourth arc-shaped transition section 114, the third side edge 103 is connected with the fourth side edge 104 through a fifth arc-shaped transition section 115, and the second outer flange of the fourth side edge 104 is 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 fourth arc transition section 114 and the fifth arc transition section 115 are respectively greater than the material thickness of both sides of each arc transition section, the material thickness of the third arc transition section 113 is greater than the material thickness of the second side edge 102, and the material thickness of the sixth arc transition section 116 is greater than the material thickness of the fourth side edge 104. 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 one side or two sides of each arc transition section of the rim is controlled, so that the material thickness of one side or 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 arc-shaped section 122 and a first outer side section 123, the first arc-shaped section 122 is connected with the third arc-shaped transition section 113, and the material thickness of the first arc-shaped section 122 is greater than that of the first outer side section 123, so that the strength at the first arc-shaped section 122 of the first outer flange is enhanced.
As shown in fig. 2, the second outer flange includes a second arc-shaped segment 132 and a second outer-side segment 133, the second arc-shaped segment 132 is connected with the sixth arc-shaped transition segment 116, and the material thickness of the second arc-shaped segment 132 is greater than that of the second outer-side segment 133, so that the strength at the second arc-shaped segment 132 of the second outer flange is also enhanced.
In the embodiment shown in fig. 2, the first outer flange and the second outer flange have the same size, the width of the first outer flange and the width of the second outer flange are both 24 ± 3mm, and the arc radius of the first arc-shaped section 122 and the arc radius of the second arc-shaped section 132 are both 12.7 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 15 °.
In this embodiment, the arc radii of the first arc-shaped transition section 111 and the fourth arc-shaped transition section 114 are 14.5mm, the arc radii of the second arc-shaped transition section 112 and the fifth arc-shaped transition section 115 are 14.5mm, and the arc radii of the third arc-shaped transition section 113 and the sixth arc-shaped transition section 116 are 6.5 mm.
As shown in fig. 2, the rim has a median plane (position of a dotted line in the drawing) in the width direction, the first end is located on the median plane, the second end is located 100mm from the median plane, and the second end is located 65mm from the second outer flange; the distance from the end of the second side 102 away from the first end to the outer periphery of the first outer flange is 12.7mm, and the distance from the end of the fourth side 104 away from the second end to the outer periphery of the second outer flange is 12.7 mm.
In this embodiment, the distance between the end of the second side edge 102 away from the first end and the first horizontal edge 105 along the radial direction of the rim is 11 mm.
As shown in fig. 1-2, the rim is further provided with air nozzle mounting holes 200, and the air nozzle mounting holes 200 are formed on the outer peripheral surface of the rim on the side close to the second outer flange. And in particular on the surface of the fourth curved transition segment 114. The nozzle mounting hole 200 has a diameter of
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. 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 and the first horizontal edge 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 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 with 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 thinning the material thickness of each side edge and thickening the material thickness of each arc transition section, and the bench test can reach 100 ten thousand times, which is far beyond 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 rim has a width of 378mm, the rim has an outer diameter of 419.1mm, the rim has an annular groove in the middle of its outer circumferential surface, the annular groove is 100mm wide and disposed circumferentially along the outer circumferential surface of the rim, the rim has an inner diameter of 318.7mm at the annular groove, and the annular groove has 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, 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-shaped transition section, the first side edge is connected with the first horizontal edge through a second arc-shaped transition section, the horizontal edge is connected with the second side edge, and the second side edge is connected with the first outer flange through a third arc-shaped transition section;
a third side edge, a fourth side edge and a second outer flange which extend obliquely and upwards are sequentially arranged on one side of the second end from the direction far away from the first end, the second end is connected with the third side edge through a fourth arc-shaped transition section, the third side edge is connected with the fourth side edge through a fifth arc-shaped transition section, and the fourth side edge is connected with the second outer flange through a sixth arc-shaped transition section;
first arc changeover portion second arc changeover portion fourth arc changeover portion with the material thickness of fifth arc changeover portion is equallyd divide and is greater than the material thickness of every arc changeover portion both sides respectively, the material thickness of third arc changeover portion is greater than the material thickness of second side, the material thickness of sixth arc changeover portion is greater than the material thickness of fourth side.
2. The wheel rim of claim 1, wherein the first outer flange includes a first arcuate segment and a first outboard segment, the first arcuate segment being connected to the third arcuate transition segment, the first arcuate segment having a material thickness greater than a material thickness of the first outboard segment.
3. The wheel rim of claim 2, wherein the second outer flange includes a second arcuate segment and a second outer segment, the second arcuate segment being connected to the sixth arcuate transition segment, the second arcuate segment having a material thickness greater than a material thickness of 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 24mm and the first arcuate segment and the second arcuate segment each have an arc radius of 12.7 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 15 °.
6. The wheel rim of claim 5, wherein the arc radii of the first arc transition and the fourth arc transition are 14.5mm, the arc radii of the second arc transition and the fifth arc transition are 14.5mm, and the arc radii of the third arc transition and the sixth arc transition are 6.5 mm.
7. The rim of claim 1, wherein the rim has a bisecting plane in the width direction, the first end is located at the bisecting plane, the second end is located 100mm from the bisecting plane, and the second end is located 65mm from the second outer flange;
the distance from one end, far away from the first end, of the second side edge to the outer periphery of the first outer flange is 12.7mm, and the distance from one end, far away from the second end, of the fourth side edge to the outer periphery of the second outer flange is 12.7 mm.
8. The rim of claim 1, wherein an end of the second side remote from the first end is spaced 11mm from the first horizontal edge in a radial direction of the rim.
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 from a cylindrical structure having an initial thickness of 7 to 12mm, the first, second, third, fourth and first horizontal edges having a material thickness reduced by 0.5 to 3.5mm compared to the initial thickness, and the first, second, third, fourth, fifth and sixth curved 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 |
|---|---|---|---|
| CN202220403717.0U CN216915385U (en) | 2022-02-25 | 2022-02-25 | Wheel rim |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220403717.0U CN216915385U (en) | 2022-02-25 | 2022-02-25 | Wheel rim |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216915385U true CN216915385U (en) | 2022-07-08 |
Family
ID=82266828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220403717.0U Active CN216915385U (en) | 2022-02-25 | 2022-02-25 | Wheel rim |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216915385U (en) |
-
2022
- 2022-02-25 CN CN202220403717.0U patent/CN216915385U/en active Active
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