CN114559222A - Method for manufacturing tubeless multi-piece wheel rim for off-highway automobile - Google Patents
Method for manufacturing tubeless multi-piece wheel rim for off-highway automobile Download PDFInfo
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- CN114559222A CN114559222A CN202210275483.0A CN202210275483A CN114559222A CN 114559222 A CN114559222 A CN 114559222A CN 202210275483 A CN202210275483 A CN 202210275483A CN 114559222 A CN114559222 A CN 114559222A
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- wheel rim
- tubeless
- rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B21/00—Rims
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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
Abstract
The invention discloses a method for manufacturing a tubeless multi-piece wheel rim for an off-highway automobile, which comprises the following steps: (1) the method comprises the following steps of sequentially carrying out smelting, refining, calcium treatment, heating, rough rolling, finish rolling and cooling on raw materials for manufacturing the rim to obtain a primary part, wherein the treatment parameters are as follows: the calcium treatment feeding rate is 200-minus 250m/min, the heating temperature is 800-minus 1000 ℃, the rough rolling finishing temperature is controlled at 1000-minus 1050 ℃, the finish rolling finishing temperature is 700-minus 780 ℃, and the cooling speed is 250-minus 280 ℃/s; (2) carrying out edge rolling, flattening, butt welding, slag planing and rolling on the primary part obtained in the step (1) to obtain a secondary part; (3) performing notching, flaring and roll forming operations on the secondary part to obtain a tertiary part, and (4) performing expansion forming operations on the tertiary part to obtain a finished product. The invention has high material strength and simple steps, can prevent the tire from falling off by utilizing the two wheel rims under the condition of heavy load such as off-road and the like, and improves the safety performance.
Description
Technical Field
The invention relates to the technical field of automobile part manufacturing methods, in particular to a manufacturing method of a tubeless multi-piece wheel rim for an off-highway automobile.
Background
Automobile wheels are generally classified into inner tube wheels and tubeless wheels according to the type of tire used. The tubeless wheel is gradually popularized and used due to the advantages of safety, energy conservation, environmental protection and the like; meanwhile, due to the exploitation of various mineral resources and the construction of engineering projects, a material foundation is provided for the beautiful life of human beings, the requirements of engineering machinery vehicles and dump mining vehicles are greatly stimulated, the automobile wheel which is not used on a normal road has the characteristics of large volume, heavy weight, complex forming and the like, and the processing and forming difficulty is greatly improved due to the limitation of the thickness and the strength of materials.
Disclosure of Invention
The invention aims to provide a method for manufacturing a tubeless multi-piece wheel rim for an off-highway automobile, which has the advantages of high material strength, simple steps, and capability of preventing tires from falling off and improving the safety performance under the heavy-load use conditions of the off-highway and the like by utilizing two wheel rims.
In order to solve the technical problem, the invention provides a manufacturing method of a tubeless multi-piece wheel rim for an off-highway automobile, which comprises the following steps: (1) the method comprises the following steps of sequentially carrying out smelting, refining, calcium treatment, heating, rough rolling, finish rolling and cooling on raw materials for manufacturing the rim to obtain a primary part, wherein the treatment parameters are as follows: the calcium treatment feeding rate is 200-minus 250m/min, the heating temperature is 800-minus 1000 ℃, the rough rolling finishing temperature is controlled at 1000-minus 1050 ℃, the finish rolling finishing temperature is 700-minus 780 ℃, and the cooling speed is 250-minus 280 ℃/s; (2) carrying out edge rolling, flattening, butt welding, slag planing and rolling on the primary part obtained in the step (1) to obtain a secondary part; (3) the middle of the secondary part is provided with a dismounting groove, two sides of the secondary part are provided with a fixed flange and a movable flange, the fixed flange and the dismounting groove form a first bead seat, and the movable flange and the dismounting groove form a second bead seat; (4) expanding and shaping the third piece to obtain a finished product piece
Further, the groove depth range of the dismounting groove is 9mm-15 mm; the inclination angle of the side wall of the groove is 5-45 degrees.
Further, the raw material in step 1 comprises the following constituent elements: 0.078-0.093%, Si: 0.145-0.200%, Mn: 0.45-0.80%, P: 0.0002% -0.006%, S: 0.006% -0.0008%, O: less than or equal to 0.0010%, N: less than or equal to 0.0040 percent, Al: 0.015-0.075%, and iron and impurities.
Further, in the flaring operation of step 3, a V-shaped mounting groove is provided on the secondary member for mounting the movable rim.
Further, the air tightness of the finished product is detected after the step 4, the valve hole punching operation is performed after the finished product is detected to be qualified, the deburring and edge extruding operations are performed after the valve hole punching operation is completed, and finally the valve hole is chamfered and is arranged in the dismounting groove.
Further, the operation temperature required for the rounding operation in step 2 is 600-880 ℃.
Further, the height of the movable wheel rim and the fixed wheel rim is 15-60 mm.
The invention has the beneficial effects that: 1. the processing material obtained by smelting, refining, calcium treatment, heating, rough rolling, finish rolling and cooling has excellent forming property, impact resistance and fatigue property, and the last step is cold processing forming, so that the processing energy consumption and cost are greatly reduced, and the environmental pollution is reduced;
2. the design has fixed rim and activity rim, utilizes two rims can prevent that the tire from droing under the heavy load service conditions such as off-highway, improves the security performance, and convenient the dismantling of activity rim simultaneously to the convenience when having guaranteed that the tire is packed into or has pulled down the rim.
Drawings
FIG. 1 is a flow chart of the method of the present invention.
Detailed Description
The present invention is further described below in conjunction with the drawings and the embodiments so that those skilled in the art can better understand the present invention and can carry out the present invention, but the embodiments are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Referring to fig. 1, one embodiment of the present invention is a method of manufacturing a tubeless multi-piece wheel rim for off-highway vehicles, comprising the steps of: (1) the method comprises the following steps of sequentially carrying out smelting, refining, calcium treatment, heating, rough rolling, finish rolling and cooling on raw materials for manufacturing the rim to obtain a primary part, wherein the treatment parameters are as follows: the calcium treatment feeding rate is 200-minus 250m/min, the heating temperature is 800-minus 1000 ℃, the rough rolling finishing temperature is controlled at 1000-minus 1050 ℃, the finish rolling finishing temperature is 700-minus 780 ℃, and the cooling speed is 250-minus 280 ℃/s; (2) performing the operations of rounding, flattening, butt welding, slag planing and rolling on the primary part obtained in the step 1 to obtain a secondary part, wherein the working temperature required by the rounding operation is 600-; (3) performing notching, flaring and roll forming operations on the secondary part to obtain a tertiary part, wherein the tertiary part has the following effects that a dismounting groove is arranged in the middle of the secondary part, a fixed rim and a movable rim are arranged on two sides of the secondary part, the fixed rim and the dismounting groove form a first bead seat, the movable rim and the dismounting groove form a second bead seat, and the heights of the movable rim and the fixed rim are 15-60 mm; (4) carrying out expansion and shaping operation on the third piece to obtain a finished product; (5) performing air tightness detection on the finished product, performing valve hole flushing operation after the finished product is qualified, performing deburring and edge squeezing operation after the finished product is detected, and finally performing chamfering treatment on the valve hole, wherein the valve hole is arranged in the dismounting groove, and the groove depth range of the dismounting groove is 9-15 mm; the inclination angle of the side wall of the groove is 5-45 degrees.
The welding operation adopts a butt welding process, wherein the butt welding refers to a method of respectively placing a weldment between two clamping devices, aligning the end faces of the weldment, and electrifying and heating the contact position for welding. The butt welding requires that the cross section size and the shape of the contact part of the weldment are the same or similar so as to ensure that the contact surface of the weldment is uniformly heated, the butt welding has high productivity and is easy to realize automation.
The raw material comprises the following components: 0.078-0.093%, is a solid solution strengthening element with very good strengthening effect and low cost, is also a main element influencing the toughness of the steel material, and the carbon is increased to improve the strength; si: 0.145-0.200%, and the silicon has strong solid solution strengthening effect after being dissolved in ferrite; mn: 0.45-0.80%, wherein manganese is the most effective element for improving the strength and the toughness, so that the hardness and the strength of ferrite and austenite in the steel are improved; p: 0.0002% -0.006%, S: 0.006% -0.0008%, O: less than or equal to 0.0010%, N: less than or equal to 0.0040 percent, Al: 0.015-0.075%, a small amount of aluminum is added, crystal grains can be refined, impact toughness is improved, and the aluminum can also play a role in deoxidation and is a strong oxidizing forming element; as well as iron and impurities.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitutions or changes made by the person skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the invention is subject to the claims.
Claims (7)
1. A manufacturing method of a tubeless multi-piece wheel rim for an off-highway automobile is characterized by comprising the following steps: (1) the method comprises the following steps of sequentially carrying out smelting, refining, calcium treatment, heating, rough rolling, finish rolling and cooling on raw materials for manufacturing the rim to obtain a primary part, wherein the treatment parameters are as follows: the calcium treatment feeding rate is 200-minus 250m/min, the heating temperature is 800-minus 1000 ℃, the rough rolling finishing temperature is controlled at 1000-minus 1050 ℃, the finish rolling finishing temperature is 700-minus 780 ℃, and the cooling speed is 250-minus 280 ℃/s; (2) carrying out edge rolling, flattening, butt welding, slag planing and rolling on the primary part obtained in the step (1) to obtain a secondary part; (3) the middle of the secondary part is provided with a dismounting groove, two sides of the secondary part are provided with a fixed flange and a movable flange, the fixed flange and the dismounting groove form a first bead seat, and the movable flange and the dismounting groove form a second bead seat; (4) and carrying out expansion and shaping operation on the third piece to obtain a finished product piece.
2. The method of manufacturing a tubeless multi-piece wheel rim for off-highway vehicles according to claim 1 wherein the drop groove has a groove depth in the range of 9mm to 15 mm; the inclination angle of the side wall of the groove is 5-45 degrees.
3. The method for manufacturing a tubeless multi-piece wheel rim for off-highway vehicles according to claim 1, wherein the raw material in step 1 comprises the following elements: 0.078-0.093%, Si: 0.145-0.200%, Mn: 0.45-0.80%, P: 0.0002% -0.006%, S: 0.006% -0.0008%, O: less than or equal to 0.0010 percent, N: less than or equal to 0.0040%, Al: 0.015-0.075%, and iron and impurities.
4. The method of manufacturing a tubeless multi-piece wheel rim for off-highway vehicles according to claim 1 wherein in the step 3 of flaring, a V-shaped mounting groove is provided in the secondary member for mounting a removable wheel rim.
5. The method for manufacturing a tubeless multi-piece wheel rim for an off-highway vehicle as defined in claim 1, wherein the step 4 is followed by performing an air tightness test on the finished product, performing a valve hole punching operation after the air tightness test is passed, performing a deburring and edge squeezing operation after the air tightness test is passed, and finally performing a chamfering process on the valve hole, wherein the valve hole is disposed in the mounting and dismounting groove.
6. The method for manufacturing a tubeless multi-piece wheel rim for an off-highway vehicle as recited in claim 1, wherein the operating temperature required for the rounding operation in step 2 is 600-880 ℃.
7. A method of manufacturing a tubeless multi-piece wheel rim for off-highway vehicles according to claim 1 wherein the movable and fixed rims have a height of 15-60 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210275483.0A CN114559222A (en) | 2022-03-21 | 2022-03-21 | Method for manufacturing tubeless multi-piece wheel rim for off-highway automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210275483.0A CN114559222A (en) | 2022-03-21 | 2022-03-21 | Method for manufacturing tubeless multi-piece wheel rim for off-highway automobile |
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| Publication Number | Publication Date |
|---|---|
| CN114559222A true CN114559222A (en) | 2022-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210275483.0A Pending CN114559222A (en) | 2022-03-21 | 2022-03-21 | Method for manufacturing tubeless multi-piece wheel rim for off-highway automobile |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990284A (en) * | 2011-09-14 | 2013-03-27 | 李昕远 | Method for manufacturing rim of inner tire-free wheel |
| CN108790606A (en) * | 2018-07-26 | 2018-11-13 | 正兴车轮集团有限公司 | A kind of inner tube-free wheel rim and inner tube-free wheel of dismantled and assembled wheel rim |
| CN108838628A (en) * | 2018-07-09 | 2018-11-20 | 河南宏源车轮股份有限公司 | A kind of non-rice habitats car wheel structure processing technology |
| CN109797336A (en) * | 2019-01-17 | 2019-05-24 | 武汉钢铁有限公司 | The tubeless rim steel and production method of a kind of thickness in 9 ~ 11mm |
| CN113665291A (en) * | 2021-08-10 | 2021-11-19 | 东风汽车底盘系统有限公司 | Wheel rim and processing technology thereof |
| CN214873979U (en) * | 2020-08-06 | 2021-11-26 | 兴民力驰有限责任公司 | Section steel rim and wheel |
-
2022
- 2022-03-21 CN CN202210275483.0A patent/CN114559222A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990284A (en) * | 2011-09-14 | 2013-03-27 | 李昕远 | Method for manufacturing rim of inner tire-free wheel |
| CN108838628A (en) * | 2018-07-09 | 2018-11-20 | 河南宏源车轮股份有限公司 | A kind of non-rice habitats car wheel structure processing technology |
| CN108790606A (en) * | 2018-07-26 | 2018-11-13 | 正兴车轮集团有限公司 | A kind of inner tube-free wheel rim and inner tube-free wheel of dismantled and assembled wheel rim |
| CN109797336A (en) * | 2019-01-17 | 2019-05-24 | 武汉钢铁有限公司 | The tubeless rim steel and production method of a kind of thickness in 9 ~ 11mm |
| CN214873979U (en) * | 2020-08-06 | 2021-11-26 | 兴民力驰有限责任公司 | Section steel rim and wheel |
| CN113665291A (en) * | 2021-08-10 | 2021-11-19 | 东风汽车底盘系统有限公司 | Wheel rim and processing technology thereof |
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