CN103587350B - A kind of automobile driving axle - Google Patents
A kind of automobile driving axle Download PDFInfo
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- CN103587350B CN103587350B CN201310608685.3A CN201310608685A CN103587350B CN 103587350 B CN103587350 B CN 103587350B CN 201310608685 A CN201310608685 A CN 201310608685A CN 103587350 B CN103587350 B CN 103587350B
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- driving axle
- automobile driving
- step shaft
- hollow
- shaft
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Abstract
The invention provides a kind of automobile driving axle, comprise step-like automobile driving axle body, automobile driving axle body is hollow structure, and the shaft part at automobile driving axle body two ends is respectively equipped with spline structure.The present invention also provides the manufacture method of above-mentioned automobile driving axle: the solid drawn pipe choosing dimension, and intercepts corresponding length; Adopt integrated radial technique of swaging that the solid drawn pipe of intercepting is processed into hollow Step Shaft; Axial compression technique is adopted to process spline structure at hollow Step Shaft two ends; The hollow Step Shaft of alignment; The hollow Step Shaft of Quenching Treatment; The hollow Step Shaft of alignment again; Defect detecting test is carried out to hollow Step Shaft; Acceptable product and above-mentioned automobile driving axle finished product.The present invention is compared with the automobile driving axle of prior art, and weight saving 20%-50%, torsional stiffness promotes 20%-60%, and single order corner frequency improves 20%-60%, meets the requirement of automotive light weight technology, high speed, high pulling torque, traveling comfort and energy-conserving and environment-protective better.
Description
Technical field
The present invention relates to technical field of automobile parts, particularly relate to a kind of automobile driving axle and manufacture method thereof.
Background technology
Automobile driving axle is the strength member of automobile, one end of automobile driving axle connects the universal-joint of the clutch end of automobile gearbox, the other end of automobile driving axle connects the universal-joint at the power input position of automotive wheel, and the effect of automobile driving axle is transmitting torque between automobile gearbox and wheel.
The automobile driving axle of prior art is because complicated shop characteristic relation, and the diameter of axle is comparatively thick, and is solid axle, thus automobile driving axle is heavier, and the torsional stiffness of automobile driving axle is lower, and the single order corner frequency of automobile driving axle is also lower.Therefore the automobile driving axle of prior art is because of heaviness, and purchase cost is high, and more and more do not meet the automotive light weight technology theory of people's pay attention to day by day, be unfavorable for the energy-saving and emission-reduction of automobile, be difficult to the requirement such as automobile high-speed, high pulling torque, traveling comfort meeting people's pay attention to day by day.Under automotive light weight technology and automobile driving axle self purchase cost need the background reduced, how to optimize the structure of automobile driving axle, enable automobile driving axle loss of weight, and improve the torsional stiffness of automobile driving axle, the single order corner frequency of raising automobile driving axle, become an important subject of person of ordinary skill in the field.
Summary of the invention
The shortcoming of prior art in view of the above, the technical problem to be solved in the present invention is to provide a kind of lightweight, torsional stiffness is high, single order corner frequency is high automobile driving axle and manufacture method thereof, to overcome the above-mentioned defect of prior art.
In order to solve the problems of the technologies described above, the invention provides a kind of automobile driving axle, comprise step-like automobile driving axle body, the axle center of described automobile driving axle body is hollow structure, and the shaft part at the two ends of described automobile driving axle body is respectively equipped with spline structure.
Preferably, described hollow structure comprises the through hole on the axial line of described automobile driving axle body, and described through hole is the diameter bore that described automobile driving axle body two end axles sector hole footpath is less, tween drive shaft sector hole footpath is larger.
Preferably, the step surface of described automobile driving axle body is the conical surface of inclination.
Preferably, the material selection 25CrMo4 of described automobile driving axle.
The present invention also provides a kind of manufacture method of above-mentioned automobile driving axle, comprises the following steps:
A, solid drawn pipe according to the selection of dimension dimension of described automobile driving axle, and the solid drawn pipe intercepting corresponding length according to the length of described automobile driving axle;
B, shape and size according to described automobile driving axle two-end structure, adopt the periphery of profiling mould to the two ends of the solid drawn pipe intercepted to carry out integrated radial and to swage processing, described solid drawn pipe is processed into hollow Step Shaft;
C, employing axial compression technique process spline structure at the shaft part at the two ends of described hollow Step Shaft;
D, employing alignment tool carry out alignment to described hollow Step Shaft;
E, Quenching Treatment is carried out to described hollow Step Shaft;
F, again employing alignment tool carry out alignment to the described hollow Step Shaft through Quenching Treatment;
G, defect detecting test is carried out to described hollow Step Shaft; The product of passed examination and the finished product of described automobile driving axle.
Preferably, after step b, before step c, the plane at hollow Step Shaft two ends described in turning, and chamfering is carried out to the outer corners of the plane at described hollow Step Shaft two ends.
Preferably, after step g, antirust treatment is carried out to described automobile driving axle.
Alternatively, described Quenching Treatment is nitrogencase hardening process or induction hardening process.
As mentioned above, a kind of automobile driving axle of the present invention and manufacture method thereof, have following beneficial effect:
Than the automobile driving axle expendable weight 20%-50% of prior art, the torsional stiffness of automobile driving axle can be made to promote 20%-60%, the single order corner frequency of automobile driving axle can be made to improve 20%-60%, meet the requirement of automotive light weight technology, high speed, high pulling torque, traveling comfort, energy-saving and emission-reduction and environmental protection better.
Accompanying drawing explanation
Fig. 1 is shown as the structural representation of automobile driving axle of the present invention.
Element numbers explanation
100 automobile driving axles
110 hollow structures
120 spline structures
130 step surfaces
Detailed description of the invention
By particular specific embodiment, embodiments of the present invention are described below, person skilled in the art scholar the content disclosed by this specification sheets can understand other advantages of the present invention and effect easily.
Refer to Fig. 1.Notice, structure, ratio, size etc. that this specification sheets institute accompanying drawings illustrates, content all only in order to coordinate specification sheets to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the present invention, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the present invention can produce and the object that can reach, all should still drop in scope that disclosed technology contents can contain.Simultaneously, quote in this specification sheets as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the present invention.
In view of automobile driving axle in prior art is solid axle, heavier, and the torsional stiffness of automobile driving axle is lower, the single order corner frequency of automobile driving axle is also lower; Thus the purchase cost of automobile driving axle is high, and more and more do not meet the automotive light weight technology theory of people's pay attention to day by day, be unfavorable for the energy-saving and emission-reduction of automobile, be difficult to the requirement such as automobile high-speed, high pulling torque, traveling comfort meeting people's pay attention to day by day.The present inventor designs a kind of hollow automobile driving axle, to make automobile driving axle loss of weight, reduces the purchase cost of automobile driving axle, and is conducive to automotive light weight technology, be conducive to the energy-saving and emission-reduction of automobile, protection of the environment; In addition, also make the torsional stiffness of automobile driving axle improve, the single order corner frequency of automobile driving axle is improved, thus meets the requirements such as automobile high-speed, high pulling torque, traveling comfort.
Below will be described in detail to automobile driving axle of the present invention and manufacture method thereof by specific embodiment.
As shown in Figure 1, the invention provides a kind of automobile driving axle 100, comprise step-like automobile driving axle body, the axle center of described automobile driving axle body is hollow structure 110, and the shaft part at the two ends of described automobile driving axle body is respectively equipped with spline structure 120.
Wherein, described hollow structure 110 comprises the through hole on the axial line of described automobile driving axle body, and described through hole is the diameter bore that described automobile driving axle body two end axles sector hole footpath is less, tween drive shaft sector hole footpath is larger.
For the ease of shaping, the step surface 130 of described automobile driving axle body is the conical surface of inclination.
The material of described automobile driving axle 100 of the present invention is preferably 25CrMo4, to meet requirement of strength, ensures use safety.
The manufacture method of automobile driving axle 100 of the present invention is as follows:
Step a, solid drawn pipe according to the selection of dimension dimension of described automobile driving axle 100, and the solid drawn pipe intercepting corresponding length according to the length of described automobile driving axle;
Step b, shape and size according to described automobile driving axle two-end structure, adopt the periphery of profiling mould to the two ends of the solid drawn pipe intercepted to carry out integrated radial and to swage processing, described solid drawn pipe is processed into hollow Step Shaft;
Step c, employing axial compression technique process spline structure at the shaft part at the two ends of described hollow Step Shaft;
Steps d, employing alignment tool carry out alignment to described hollow Step Shaft;
Step e, Quenching Treatment is carried out to described hollow Step Shaft;
Step f, again employing alignment tool carry out alignment to the described hollow Step Shaft through Quenching Treatment;
Step g, defect detecting test is carried out to described hollow Step Shaft; The product of passed examination and the finished product of described automobile driving axle.
Because the plane at processes of in stepb, swaging hollow Step Shaft two ends is out often not bery smooth; And clean and tidy in order to ensure the spline structure that step c processes, produce without clouts such as burr; After step b, before step c, want the plane at hollow Step Shaft two ends described in turning, and chamfering is carried out to the outer corners of the plane at described hollow Step Shaft two ends, to make the plane at described hollow Step Shaft two ends keep smooth, the spline structure that step c processes is clean and tidy without clouts such as burr.
According to actual needs, the Quenching Treatment described in step e, can be the nitrogencase hardening process hollow Step Shaft being carried out to overall strengthening, also can be the induction hardening process surface of hollow Step Shaft being carried out to entirety or local strengthening.
Because the material of automobile driving axle 100 of the present invention is preferably 25CrMo4, therefore after step g, antirust treatment to be carried out to described automobile driving axle 100.Certainly, automobile driving axle 100 of the present invention also can adopt stainless steel material, as long as can meet requirement of strength, rigidity requirement, then when selecting stainless steel material, does not need to carry out antirust treatment again.
In sum, automobile driving axle 100 of the present invention is the Integral hollow Step Shaft structures of manufacture technics of being swaged by integrated radial by solid drawn pipe, the outer dia of automobile driving axle 100 of the present invention and shape can correspondingly be swaged processing according to actual needs, the wall thickness of central siphon and shape also can choose corresponding gauge member according to actual needs or corresponding nonstandard solid drawn pipe shapes, and the spline structure at two ends forms by axial compression manufacture technics; By nitrogencase hardening process, entirety strengthening is carried out to hollow Step Shaft again, also can carry out entirety or local strengthening by induction hardening process to hollow Step Shaft.Compared with the automobile driving axle that automobile driving axle 100 of the present invention is solid with prior art, weight can alleviate 20%-50%, torsional stiffness can improve 20%-60%, single order corner frequency can improve 20%-60%, meets the requirement of automotive light weight technology, high speed, high pulling torque, traveling comfort, energy-saving and emission-reduction and environmental protection better.So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (7)
1. an automobile driving axle, comprise step-like automobile driving axle body, it is characterized in that, the axle center of described automobile driving axle body is hollow structure, the shaft part at the two ends of described automobile driving axle body is respectively equipped with spline structure, and described automobile driving axle is made up of following steps:
A, solid drawn pipe according to the selection of dimension dimension of described automobile driving axle, and the solid drawn pipe intercepting corresponding length according to the length of described automobile driving axle;
B, shape and size according to described automobile driving axle two-end structure, adopt the periphery of profiling mould to the two ends of the solid drawn pipe intercepted to carry out integrated radial and to swage processing, described solid drawn pipe is processed into hollow Step Shaft;
C, employing axial compression technique process spline structure at the shaft part at the two ends of described hollow Step Shaft;
D, employing alignment tool carry out alignment to described hollow Step Shaft;
E, Quenching Treatment is carried out to described hollow Step Shaft;
F, again employing alignment tool carry out alignment to the described hollow Step Shaft through Quenching Treatment;
G, defect detecting test is carried out to described hollow Step Shaft; The product of passed examination and the finished product of described automobile driving axle.
2. automobile driving axle according to claim 1, it is characterized in that: described hollow structure comprises the through hole on the axial line of described automobile driving axle body, described through hole is the diameter bore that described automobile driving axle body two end axles sector hole footpath is less, tween drive shaft sector hole footpath is larger.
3. automobile driving axle according to claim 1 and 2, is characterized in that: the step surface of described automobile driving axle body is the conical surface of inclination.
4. automobile driving axle according to claim 1 and 2, is characterized in that: the material selection 25CrMo4 of described automobile driving axle.
5. automobile driving axle according to claim 1, is characterized in that: after step b, before step c, the plane at hollow Step Shaft two ends described in turning, and carries out chamfering to the outer corners of the plane at described hollow Step Shaft two ends.
6. automobile driving axle according to claim 1, is characterized in that: after step g, carries out antirust treatment to described automobile driving axle.
7. automobile driving axle according to claim 1, is characterized in that: described Quenching Treatment is nitrogencase hardening process or induction hardening process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310608685.3A CN103587350B (en) | 2013-11-26 | 2013-11-26 | A kind of automobile driving axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310608685.3A CN103587350B (en) | 2013-11-26 | 2013-11-26 | A kind of automobile driving axle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103587350A CN103587350A (en) | 2014-02-19 |
| CN103587350B true CN103587350B (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310608685.3A Active CN103587350B (en) | 2013-11-26 | 2013-11-26 | A kind of automobile driving axle |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807281B (en) * | 2014-03-13 | 2016-01-20 | 上海纳铁福传动系统有限公司 | A kind of light-weight design method of high torsional stiffness transmission shaft |
| CN104328249B (en) * | 2014-11-26 | 2016-06-22 | 重庆理工大学 | A kind of heat treatment method of the full hollow half axle of automobile |
| CN104833331B (en) * | 2015-05-22 | 2017-07-11 | 上海理工大学 | The inside/outside diameter size of axis blank of being swaged in the middle of car constant-speed Universal drive determines method |
| DE102015221842A1 (en) * | 2015-11-06 | 2017-05-11 | Volkswagen Aktiengesellschaft | Method for producing a gear shaft |
| CN105436372A (en) * | 2015-12-04 | 2016-03-30 | 万向钱潮股份有限公司 | Rotary forging manufacturing method for hollow shaft |
| CN105710273B (en) * | 2016-01-18 | 2017-11-03 | 上海理工大学 | Car constant-speed universal drive shaft circle-feeding technological parameter of swaging determines method |
| CN106065897B (en) * | 2016-08-12 | 2018-06-01 | 汉德车桥(株洲)齿轮有限公司 | A kind of manufacturing method of centre position with circular boop shape projective table type thin-walled hollow axis |
| CN106514166A (en) * | 2016-12-20 | 2017-03-22 | 重庆理工大学 | Machining forming process for automobile coupling |
| CN111842772A (en) * | 2020-07-22 | 2020-10-30 | 四川联茂机械制造有限公司 | Machining and forging method for heavy truck half shaft rod part |
| CN112238205A (en) * | 2020-09-17 | 2021-01-19 | 东风商用车有限公司 | Manufacturing method of heavy-duty automobile hollow half shaft and hollow half shaft |
| CN113477857B (en) * | 2021-04-06 | 2022-11-08 | 江苏太平洋精锻科技股份有限公司 | Forming processing method of hollow motor shaft |
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| US6350205B1 (en) * | 1999-06-25 | 2002-02-26 | Gkn Lobro Gmbh | Monobloc hollow shaft |
| CN101176965A (en) * | 2006-11-08 | 2008-05-14 | 中色科技股份有限公司 | Technique for processing bevel gear with driving sleeve |
| JP2011017413A (en) * | 2009-07-10 | 2011-01-27 | Ntn Corp | Shaft for power transmission shaft |
| CN102240892A (en) * | 2011-05-24 | 2011-11-16 | 中国第一汽车集团公司 | Method for forming hollow front shaft |
| DE102010028898A1 (en) * | 2010-05-11 | 2011-11-17 | Tedrive Holding B.V. | Side shaft between an axle differential and the wheels of a motor vehicle |
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2013
- 2013-11-26 CN CN201310608685.3A patent/CN103587350B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6350205B1 (en) * | 1999-06-25 | 2002-02-26 | Gkn Lobro Gmbh | Monobloc hollow shaft |
| CN101176965A (en) * | 2006-11-08 | 2008-05-14 | 中色科技股份有限公司 | Technique for processing bevel gear with driving sleeve |
| JP2011017413A (en) * | 2009-07-10 | 2011-01-27 | Ntn Corp | Shaft for power transmission shaft |
| DE102010028898A1 (en) * | 2010-05-11 | 2011-11-17 | Tedrive Holding B.V. | Side shaft between an axle differential and the wheels of a motor vehicle |
| CN102240892A (en) * | 2011-05-24 | 2011-11-16 | 中国第一汽车集团公司 | Method for forming hollow front shaft |
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| CN103587350A (en) | 2014-02-19 |
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| CB02 | Change of applicant information |
Address after: 201315 Shanghai city Pudong New Area Cambridge Kangqiao Industrial Zone Pudong Road No. 950 Applicant after: Shanghai GKN Huayu Driveline Systems Co., Ltd. Address before: 201315 Shanghai city Pudong New Area Cambridge Kangqiao Industrial Zone Pudong Road No. 950 Applicant before: Natiefu Drive Shafts Co., Ltd., Shanghai |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: NATIEFU DRIVE SHAFTS CO., LTD., SHANGHAI TO: SHANGHAI GKN HUAYU DRIVELINE SYSTEMS CO., LTD. |
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