CN217671960U - Wheel rim - Google Patents
Wheel rim Download PDFInfo
- Publication number
- CN217671960U CN217671960U CN202220403683.5U CN202220403683U CN217671960U CN 217671960 U CN217671960 U CN 217671960U CN 202220403683 U CN202220403683 U CN 202220403683U CN 217671960 U CN217671960 U CN 217671960U
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- Prior art keywords
- arc
- rim
- section
- side edge
- outer flange
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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 transition section, a first side edge, a second arc transition section, a second side edge, a third arc transition section and a first outer flange in sequence from the direction far away from the second end; one side of second end has fourth arc changeover portion, third side, fifth arc changeover portion, fourth side, sixth arc changeover portion and second outer flange in proper order from the direction of keeping away from first end, and the material thickness of first arc changeover portion, second arc changeover portion, third arc changeover portion, fourth arc changeover portion, fifth arc changeover portion and sixth arc changeover portion is equallyd divide and is greater than the material thickness of every arc changeover portion both sides respectively. 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 deep well in the middle of its 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 to-be-solved technical problem of the utility model is to provide a rim in order to overcome among the prior art rim weight heavier, the cost is higher and self intensity is lower defect.
The utility model discloses an above-mentioned technical problem is solved through following technical scheme:
a rim, the width of the rim is 438.5mm, the outer diameter of the rim is 1021mm, 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 inner diameter of the rim at the annular groove is 918mm, 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 second end is from keeping away from the direction of first end has slope third side and the fourth side and the second outer flange that upwards extends in proper order, the second end with the second side passes through the fourth arc changeover portion and connects, the third side with the fourth side passes through the fifth arc changeover portion and connects, the fourth side with the second outer flange passes through the sixth arc changeover portion and connects, first arc changeover portion the second arc changeover portion the third arc changeover portion the fourth arc changeover portion the fifth arc changeover portion with the material thickness of sixth 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 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 16mm, and the arc radius of each of the first arc-shaped section and the second arc-shaped section is 11mm.
Preferably, the inclination angle of the first side is greater than the inclination angle of the second side, and the inclination angle of the third side is greater than the inclination angle of the fourth side.
Preferably, the arc radii of the first arc-shaped transition section and the fourth arc-shaped transition section are both 10mm, the arc radii of the second arc-shaped transition section and the fifth arc-shaped transition section are 13.5mm, and the arc radii of the third arc-shaped transition section and the sixth arc-shaped transition section are 6.5mm.
Preferably, the dimension of the second side face from the width direction of the rim to the first outer flange is 33mm;
the dimension of the fourth side surface along the width direction of the rim is 22mm.
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 first outer flange, of the outer peripheral surface of the rim.
Preferably, the diameter of the air tap mounting hole is 15.7mm.
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 utility model discloses an actively advance the effect and lie in:
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. 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 the rim according to an embodiment of the present invention.
Fig. 3 is a cross-sectional view (ii) of a rim according to an embodiment of the present invention.
Description of the reference numerals:
First arcuate transition section 111
Second arcuate transition section 112
Third arcuate transition segment 113
Fourth curved transition segment 114
Fifth curved transition segment 115
Sixth curved transition section 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 detailed description of the preferred embodiments in conjunction with the accompanying drawings.
The utility model provides a rim, the model is W16X 38, its structure is as shown in figure 1, the width L of this rim 1 Is 438.5 +/-8 mm, and the outer diameter of the rim is phi 1 1021 + -2.4 mm, the middle part of the outer peripheral surface of the rim is provided with a circular ring-shaped groove 100 arranged along the circumferential direction of the outer peripheral surface of the rim, and the inner diameter phi of the rim at the circular ring-shaped groove 100 is 2 Is 918 +/-1 mm.
Specifically, as shown in fig. 2, the circular groove 100 has a first end and a second end, where the circular groove 100 sequentially has a first side 101, a second side 102, and a first outer flange 120 extending obliquely upward from a direction away from the second end on one side of the first end, the first end is connected to the first side 101 through a first arc-shaped transition section 111, the first side 101 is connected to the second side 102 through a second arc-shaped transition section 112, and the second side 102 is connected to the first outer flange 120 through a third arc-shaped transition section 113. In addition, the circular groove 100 has a third side 103 and a fourth side 104 extending obliquely upward and a second outer flange 130 in sequence from a direction away from the first end on one side of the second end, the second end is connected to the second side 102 through a fourth arc-shaped transition section 114, the third side 103 is connected to the fourth side 104 through a fifth arc-shaped transition section 115, and the fourth side 104 is connected to the second outer flange 130 through a sixth arc-shaped transition section 116.
In this embodiment, the material thickness of each of the first, second, third, fourth, fifth and sixth arcuate transition sections 111, 112, 113, 114, 115 and 116 is greater than the material thickness of each of the two sides of the arcuate transition sections. 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.
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 120 includes a first connecting section 121, a first arc-shaped section 122 and a first outer side section 123, wherein the first connecting section 121 is connected to the third arc-shaped transition section 113 and is perpendicular to the outer circumferential surface of the circular groove 100, and the material thickness of the first arc-shaped section 122 is also greater than the material thickness of the first connecting 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 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 is 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 130 is also enhanced.
In this embodiment, as shown in fig. 3, the rim has symmetrical outer dimensions, the first outer flange 120 and the second outer flange 130 have the same dimensions, and the width D of the first outer flange 120 and the second outer flange 130 1 16 + -1.5mm in each case, and the arc radii of the first arc-shaped section 122 and the second arc-shaped section 132 are 11mm in each case.
In addition, in the embodiment, the inclination angle of the first side 101 is larger than that of the second side 102, and the inclination angle of the third side 103 is larger than that of the fourth side 104.
Specifically, the arc radii R of the first arc transition section 111 and the fourth arc transition section 114 1 Arc radii R of the second arc transition section 112 and the fifth arc transition section 115, both of which are 10mm 2 13.5mm, third curved transition 113 and sixth curved transition 116 3 Are all 6.5mm. The second and fourth sides are respectively to the width-wise dimension D of the first and second outer flanges 120, 130 2 Both 33mm, the second side and the fourth side having a dimension D in the width direction of the rim 3 22mm each, and a dimension D in the width direction of the third arc-shaped transition section 113 and the sixth arc-shaped transition section 116 4 9.5mm in diameter phi in the circumferential direction of the third arc-shaped transition section 113 and the sixth arc-shaped transition section 116 3 Is 970 +/-0.4 mm.
As shown in fig. 1, air nozzle mounting holes 140 are further formed in the rim, and the air nozzle mounting holes 140 are formed on the outer peripheral surface of the rim on the side close to the second outer flange 130, specifically, on the surface of the fourth side 104. The diameter phi of the nozzle mounting hole 140 4 Is 15.7mm.
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 111, the second arc-shaped transition 112, the third arc-shaped transition 113, the fourth arc-shaped transition 114, the fifth arc-shaped transition 115 and the sixth arc-shaped transition 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 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 section department, make the material extrusion of other positions department move the bodiness to clearance department (arc transition section department promptly), make the dangerous section intensity of each arc transition section department improve greatly, 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.
Although specific embodiments of the present invention 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 invention is defined by the appended claims. Various changes and modifications to these embodiments can be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (10)
1. A rim, the width of the rim is 438.5mm, the outer diameter of the rim is 1021mm, 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 inner diameter of the rim at the annular groove is 918mm, 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 second 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, and the fourth side edge is connected with the second outer flange through a sixth 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 16mm, and the first arcuate segment and the second arcuate segment each have an arc radius of 11mm.
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, and the angle of inclination of the third side is greater than the angle of inclination of the fourth side.
6. The wheel rim of claim 5, wherein the arc radii of the first arc transition and the fourth arc transition are each 10mm, the arc radii of the second arc transition and the fifth arc transition are each 13.5mm, and the arc radii of the third arc transition and the sixth arc transition are each 6.5mm.
7. The wheel rim of claim 5, wherein the dimension of the second side surface in the width direction of the wheel rim to the first outer flange is 33mm;
the dimension of the fourth side surface in the width direction of the rim is 22mm.
8. The wheel rim of claim 1, further comprising air tap mounting holes formed in the rim, the air tap mounting holes being formed in the outer peripheral surface of the rim on a side thereof adjacent to the first outer flange.
9. The wheel rim of claim 8, wherein the air cap mounting hole has a diameter of 15.7mm.
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 material thickness of the first, second, third and fourth sides is reduced by 0.5 to 3.5mm compared to the initial thickness, and the material thickness of the first, second, third, fourth, fifth and sixth transitions is 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 |
|---|---|---|---|
| CN202220403683.5U CN217671960U (en) | 2022-02-25 | 2022-02-25 | Wheel rim |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220403683.5U CN217671960U (en) | 2022-02-25 | 2022-02-25 | Wheel rim |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217671960U true CN217671960U (en) | 2022-10-28 |
Family
ID=83731526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220403683.5U Active CN217671960U (en) | 2022-02-25 | 2022-02-25 | Wheel rim |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217671960U (en) |
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2022
- 2022-02-25 CN CN202220403683.5U patent/CN217671960U/en active Active
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