CN216915382U - Wheel rim - Google Patents
Wheel rim Download PDFInfo
- Publication number
- CN216915382U CN216915382U CN202220403566.9U CN202220403566U CN216915382U CN 216915382 U CN216915382 U CN 216915382U CN 202220403566 U CN202220403566 U CN 202220403566U CN 216915382 U CN216915382 U CN 216915382U
- Authority
- CN
- China
- Prior art keywords
- arc
- material thickness
- rim
- transition section
- segment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Landscapes
- Tires In General (AREA)
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 horizontal edge, a first side edge and a first outer flange in sequence from the direction far away from the second end; one side of the second end is provided with a second side edge and a second outer flange in sequence from the direction far away from the first end; the material thickness of the first arc-shaped transition section and the material thickness of the fourth arc-shaped transition section are both larger than the material thickness of the circular groove, the material thickness of the second arc-shaped transition section is larger than the material thickness of the first horizontal edge, the material thickness of the third arc-shaped transition section is larger than the material thickness of the first side edge, and the material thickness of the fifth arc-shaped transition section and the material thickness of the sixth arc-shaped transition section are both larger than the material thickness of the second 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 slightly inclined towards the middle, and the maximum diameter of the inclined part is called the engagement diameter of the tyre bead and the wheel 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 359mm, the outer diameter of the rim is 520.7mm, 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 421.5mm, and the annular groove is provided with a first end and a second end;
one side of the first end is sequentially provided with a first horizontal edge, a first side edge and a first outer flange from the direction far away from the second end, the first end and the first horizontal edge are sequentially connected through a first arc-shaped transition section and a second arc-shaped transition section, the first horizontal edge is connected with the first side edge, the first side edge extends upwards in an inclined mode, and the first side edge and the first outer flange are connected through a third arc-shaped transition section;
a second side edge and a second outer flange are sequentially arranged on one side of the second end from the direction far away from the first end, the second end and the second side edge are sequentially connected through a fourth arc-shaped transition section and a fifth arc-shaped transition section, and the second side edge is connected with the second outer flange through a sixth arc-shaped transition section;
the material thickness of first arc changeover portion with the fourth arc changeover portion all is greater than the material thickness of annular groove, the material thickness of second arc changeover portion is greater than the material thickness on first horizontal limit, the material thickness of third arc changeover portion is greater than the material thickness on first side, the fifth arc changeover portion with the material thickness of sixth arc changeover portion all is greater than the material thickness on second 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 edge and the inclination angle of the second side edge 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 9.5mm away from the median plane, the second end is 90.5mm away from the median plane, and the second end is 65mm away from the second outer flange.
Preferably, the distance between the end of the first side edge far away from the first end and the first horizontal edge along the radial direction of the rim is 11mm, and the distance between the end of the second outer flange close to the second end and the circular ring-shaped groove along the radial direction of the rim is 32.5 mm.
Preferably, the rim is formed by rolling a cylindrical structure, the initial thickness of the cylindrical structure is 7-12mm, and the material thickness of the first side edge, the second side edge and the first horizontal edge is reduced by 0.5-3.5mm compared with the initial thickness.
Preferably, 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 increased by 0.5-1.5mm compared with the initial material thickness.
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 103
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
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 and 2, an embodiment of the present invention provides a rim of type 12.25 × 19.5(19.5 × 12.25) having a width L1359 +/-10 mm, and the external diameter of wheel rim phi1520.7 +/-0.4 mm, a circular groove 100 circumferentially arranged along the outer peripheral surface of the rim is arranged in the middle of the outer peripheral surface of the rim, the width of the circular groove 100 is 100mm, and the inner diameter phi of the rim at the circular groove 100 is2Is composed of
Specifically, as shown in fig. 2, the circular groove 100 has a first end and a second end. One side of first end has first horizontal edge 103, first side 101 and first outer flange in proper order from the direction of keeping away from the second end, and first end loops through first arc changeover portion 111 with first horizontal edge 103 and is connected with second arc changeover portion 112, and first horizontal edge 103 is connected with first side 101, and first side 101 slopes to extend upwards, and first side 101 and first outer flange pass through third arc changeover portion 113 and connect. One side of the second end is provided with a second side edge 102 and a second outer flange in sequence from the direction far away from the first end, the second end and the second side edge 102 are connected in sequence through a fourth arc-shaped transition section 114 and a fifth arc-shaped transition section 115, and the second side edge 102 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-shaped transition section 111 and the fourth arc-shaped transition section 114 is greater than that of the circular groove 100, the material thickness of the second arc-shaped transition section 112 is greater than that of the first horizontal edge 103, the material thickness of the third arc-shaped transition section 113 is greater than that of the first side 101, and the material thickness of the fifth arc-shaped transition section 115 and the sixth arc-shaped transition section 116 is greater than that of the second side 102. Here, the first arc transition section 111 is taken as an example: as shown in fig. 2, one side of the first arc-shaped transition section 111 is a cylinder where the circular groove 100 is located, and the material thickness of the first arc-shaped transition section 111 is thicker than that of the cylinder 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 outboard section 123, the first arc-shaped section 122 is connected to the third arc-shaped transition section 113, and the material thickness of the first arc-shaped section 122 is greater than the material thickness of the first outboard section 123, so that the strength at the first arc-shaped section 122122 of the first outer flange is enhanced.
As shown in FIG. 2, the second outer flange includes a second arcuate segment 132 and a second outer segment 133, the second arcuate segment 132 being connected to the sixth arcuate transition segment 116, the second arcuate segment 132 having a material thickness greater than a material thickness of the second outer segment 133 such that the strength at the second arcuate segment 132132 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 ± 2.5mm, 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 and the inclination angle of the second side 102 are both 15 °.
In this embodiment, the arc radius of the first arc-shaped transition section 111 and the fourth arc-shaped transition section 114 is 14.5mm, the arc radius of the second arc-shaped transition section 112 and the fifth arc-shaped transition section 115 is 14.5mm, and the arc radius of the third arc-shaped transition section 113 and the sixth arc-shaped transition section 116 is 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 9.5mm away from the median plane, the second end is 90.5mm away from the median plane, and the second end is 65mm away from the second outer flange.
In this embodiment, the distance between the end of the first side edge 101 far from the first end and the first horizontal edge 103 along the radial direction of the rim is 11mm, and the distance between the end of the second outer flange near the second end and the circular groove 100 along the radial direction of the rim is 32.5 mm.
Still be equipped with the air cock mounting hole on the rim, the outer peripheral face of rim is located to the air cock mounting hole and is close to one side of first outward flange. In particular on the surface of the first curved transition section 111. The diameter of the air nozzle mounting hole is
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, and the material thickness of the first side edge 101, the second side edge 102 and the first horizontal edge 103 is reduced by 0.5-3.5mm compared with the initial thickness.
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 increased by 0.5-1.5mm compared to the initial material thickness. 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, through changing the mould size of forging, enlarges the size clearance of each arc transition department, makes the material extrusion of other positions punishment move the bodiness to clearance department (be arc transition department promptly), makes the dangerous section intensity of each arc transition department improve 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 machine, so that the production process is simplified, the production speed is improved, and more importantly, the existing process of stretching, bending and deformation is changed into the process of forging, extruding and deformation 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 359mm, the outer diameter of the rim is 520.7mm, the middle part of the outer circumferential surface of the rim is provided with an annular groove circumferentially arranged along 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 421.5mm, and the annular groove is provided with a first end and a second end;
one side of the first end is sequentially provided with a first horizontal edge, a first side edge and a first outer flange from the direction far away from the second end, the first end and the first horizontal edge are sequentially connected through a first arc-shaped transition section and a second arc-shaped transition section, the first horizontal edge is connected with the first side edge, the first side edge extends upwards in an inclined mode, and the first side edge and the first outer flange are connected through a third arc-shaped transition section;
a second side edge and a second outer flange are sequentially arranged on one side of the second end from the direction far away from the first end, the second end and the second side edge are sequentially connected through a fourth arc-shaped transition section and a fifth arc-shaped transition section, and the second side edge is connected with the second outer flange through a sixth arc-shaped transition section;
the material thickness of first arc changeover portion with the fourth arc changeover portion all is greater than the material thickness of annular groove, the material thickness of second arc changeover portion is greater than the material thickness on first horizontal limit, the material thickness of third arc changeover portion is greater than the material thickness on first side, the fifth arc changeover portion with the material thickness of sixth arc changeover portion all is greater than the material thickness on second 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 wheel rim of claim 1, wherein the angle of inclination of the first side is 15 ° from the angle of inclination of the second side.
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 spaced 9.5mm from the bisecting plane, the second end is spaced 90.5mm from the bisecting plane, and the second end is spaced 65mm from the second outer flange.
8. The wheel rim of claim 7, wherein the end of the first side remote from the first end is spaced from the first horizontal edge by 11mm in the radial direction of the wheel rim, and the end of the second outer flange near the second end is spaced from the annular groove by 32.5mm in the radial direction of the wheel rim.
9. The rim according to any one of claims 1 to 8, characterized in that it is roll-formed by a cylindrical structure having an initial thickness of 7-12mm, the material thickness of the first lateral edge, the second lateral edge and the first horizontal edge being reduced by 0.5-3.5mm compared to the initial thickness.
10. The wheel rim of claim 9, wherein the first, second, third, fourth, fifth, and sixth arcuate transitions have an increase in material thickness of 0.5-1.5mm compared to an initial material thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220403566.9U CN216915382U (en) | 2022-02-25 | 2022-02-25 | Wheel rim |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220403566.9U CN216915382U (en) | 2022-02-25 | 2022-02-25 | Wheel rim |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216915382U true CN216915382U (en) | 2022-07-08 |
Family
ID=82267212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220403566.9U Active CN216915382U (en) | 2022-02-25 | 2022-02-25 | Wheel rim |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216915382U (en) |
-
2022
- 2022-02-25 CN CN202220403566.9U patent/CN216915382U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11203225B2 (en) | Wheel spoke with thickened edges around heat dissipation holes and its processing device | |
| CN102343765A (en) | Truck rear wheel aluminum alloy spinning hub and manufacturing method thereof | |
| CN216915382U (en) | Wheel rim | |
| CN216915369U (en) | Wheel rim | |
| CN216915368U (en) | Wheel rim | |
| CN216915385U (en) | Wheel rim | |
| CN216915380U (en) | Wheel rim | |
| CN216915371U (en) | Wheel rim | |
| CN216915370U (en) | Wheel rim | |
| CN217671958U (en) | Wheel rim | |
| CN216915379U (en) | Wheel rim | |
| CN216915365U (en) | Wheel rim | |
| CN217671960U (en) | Wheel rim | |
| CN216915375U (en) | Wheel rim | |
| CN216915381U (en) | Wheel rim | |
| CN216915364U (en) | Wheel rim | |
| CN216915383U (en) | Wheel rim | |
| CN216915372U (en) | Wheel rim | |
| CN216915386U (en) | Wheel rim | |
| CN216915367U (en) | Wheel rim | |
| CN216915377U (en) | Wheel rim | |
| CN217671959U (en) | Wheel rim | |
| CN216915384U (en) | Wheel rim | |
| CN216915374U (en) | Wheel rim | |
| CN216915387U (en) | Wheel rim |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |