CN208845678U - Driving bevel gear axis for rear axle forging - Google Patents
Driving bevel gear axis for rear axle forging Download PDFInfo
- Publication number
- CN208845678U CN208845678U CN201821343393.6U CN201821343393U CN208845678U CN 208845678 U CN208845678 U CN 208845678U CN 201821343393 U CN201821343393 U CN 201821343393U CN 208845678 U CN208845678 U CN 208845678U
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- connecting shaft
- shaft section
- section
- bevel gear
- transmission shaft
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Abstract
The utility model discloses a kind of driving bevel gear axis for rear axle forging, the drive bevel gear forging is an integral structure, including sequentially connected cone tooth section, first connecting shaft section, second connecting shaft section and transmission shaft, and the cone tooth section, first connecting shaft section, second connecting shaft section is arranged concentrically with transmission shaft, the end face of the cone tooth section forms positioning surface, its conical surface forms gear structure for processing, and its big end is connected with first connecting shaft section, second connecting shaft section is tapered, the big end of second connecting shaft section is connected with first connecting shaft section, and step surface is formed between the first connecting shaft section and the second connecting shaft section, the small end of second connecting shaft section is connected with transmission shaft.Its remarkable result is: using integrally formed forging structure, the disadvantages of it is poor effectively to overcome fatigue resistance, easy fracture, service life is obviously prolonged.
Description
Technical field
The utility model relates to arrive technical field of automobile parts, and in particular to a kind of driving bevel gear axis for rear axle forging.
Background technique
In automobile manufacturing field, rear axle is the component part of the rear drive shaft of vehicle power transmitting, generally by two half-bridges
Composition, and it is provided with the differential motion that differential mechanism realizes left and right rear-wheel；And in the transmission mechanism of power, utilization is lesser
Driving bevel gear axis for rear axle cooperates with the biggish driven bull wheel-driving for being fixed on differential mechanism, realizes the transmitting of power.
In the prior art, driving bevel gear axis for rear axle and transmission shaft mostly use integrally casting shaping and cooperate the processing of Vehicle Processing
Technique, but use the angular wheel of above-mentioned technique production to exist and run unstable, easy to shake, the big disadvantage of noise；And by
Sand holes are easy to appear in casting process, compact structure is inadequate, and yield rate cannot be guaranteed, and the fatigue resistance of product is poor, easily broken
It splits, greatly reduces the service life of drive bevel gear.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the utility model is to provide a kind of driving bevel gear axis for rear axle forging, use
The disadvantages of integrally formed forging structure, it is poor effectively to overcome fatigue resistance, easy fracture, service life is obviously prolonged.
In order to achieve the above objectives, the technical solution adopted in the utility model is as follows:
A kind of driving bevel gear axis for rear axle forging, key are: the drive bevel gear forging is an integral structure, including according to
Cone tooth section, the first connecting shaft section, the second connecting shaft section and the transmission shaft of secondary connection, and the cone tooth section, the first connecting shaft section,
Second connecting shaft section is arranged concentrically with transmission shaft, and the end face of the cone tooth section forms positioning surface, and the conical surface forms tooth for processing
Wheel construction, and its big end is connected with first connecting shaft section, the angle formed between the side wall and horizontal plane of the cone tooth section is
45 °, second connecting shaft section is tapered, and the angle formed between its side wall and horizontal plane is 30 °, second connecting shaft section
Big end be connected with first connecting shaft section, and form step surface between the first connecting shaft section and the second connecting shaft section,
The small end of second connecting shaft section is connected with transmission shaft.
Further technical solution is to be additionally provided with transition shaft part between second connecting shaft section and transmission shaft, should
One end of transition shaft part is connected to the center of second connecting shaft section one end, and the other end is connected with the transmission shaft.
Further technical solution is that the side of the transition shaft part is the arc surface of indent.
Further technical solution is that first connecting shaft section is column construction.
Further technical solution is that the transmission shaft is multidiameter shaft, company of the transmission shaft from itself and the second connecting shaft section
The place of connecing to free end diameter is gradually reduced, and the lateral surface of the transmission shaft and the angle of its end face are 88 °.
Further technical solution is that the cone tooth section, the first connecting shaft section, the second connecting shaft section and transmission shaft press length
Descending is ordered as transmission shaft, cone tooth section, the first connecting shaft section, the second connecting shaft section.
The remarkable result of the utility model is:
1, intensity is higher: for the integral structure of the utility model compared to original split type structure, intensity is higher, produces
Quality is guaranteed, can better meet the intensity requirement of car transmissions；
2, lightweight is good: compared with original structure, integrated structure can save 30% or more in weight and volume；
3, longer life expectancy: compared with original cast structure, the defect of trachoma is avoided, fatigue resistance is good, is not in
Phenomena such as fracture.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the main view of the utility model；
Fig. 3 is the A-A cross-sectional view of Fig. 2；
Fig. 4 is the left view of the utility model；
Fig. 5 is the right view of the utility model.
Specific embodiment
Specific embodiment of the present utility model and working principle are described in further detail with reference to the accompanying drawing.
As shown in fig. 1~fig. 5, a kind of driving bevel gear axis for rear axle forging, the drive bevel gear forging are an integral structure, packet
Include sequentially connected cone tooth section 1, the first connecting shaft section 2, the second connecting shaft section 3 and transmission shaft 4, and the cone tooth section 1, first
Connecting shaft section 2, the second connecting shaft section 3 are arranged concentrically with transmission shaft 4, and the end face of the cone tooth section 1 forms positioning surface, and the conical surface is used
Form gear structure in processing, and its big end is connected with first connecting shaft section 2, the side wall of the cone tooth section 1 and horizontal plane it
Between the angle that is formed be 45 °, second connecting shaft section 3 is tapered, and the angle formed between its side wall and horizontal plane is
30 °, the big end of second connecting shaft section 3 is connected with first connecting shaft section 2, and connects in the first connecting shaft section 2 and second
Step surface 5 is formed between spindle section 3, the small end of second connecting shaft section 3 is connected with transmission shaft 4.
It is additionally provided with transition shaft part 6 between second connecting shaft section 3 and transmission shaft 4, one end of the transition shaft part 6 connects
It is connected to the center of described second connecting shaft section, 3 one end, the other end is connected with the transmission shaft 4.Specifically, the transition shaft part 6
Side be indent arc surface.
Preferably, first connecting shaft section 2 is column construction；The transmission shaft 4 is multidiameter shaft, the transmission shaft 4 from its
It is gradually reduced with junction to the free end diameter of the second connecting shaft section 3, the lateral surface of the transmission shaft is with the angle of its end face
88°。
The sequence descending by length with transmission shaft 4 of the cone tooth section 1, the first connecting shaft section 2, the second connecting shaft section 3
For transmission shaft 4, cone tooth section 1, the first connecting shaft section 2, the second connecting shaft section 3.
It is formed using the above structure convenient for rear axle bevel gear forging process for fuel, gear forgings is also avoided to occur in heat treatment process
Deformation, improves the dimensional accuracy of the forging.
The forging of rear axle bevel gear described in this programme is forged using 20CrMnTi material, and the wearability of gear forgings can be improved
And intensity, while the cutting ability for also improving gear forgings has saved resource and processing technology so that reducing subsequent machining
Simply, stable product quality, high yield rate, intensity are big, density is high, shock resistance, and high production efficiency is both able to satisfy required precision,
It is also possible to prevent the problem of being easily deformed after being heat-treated.
Claims (6)
1. a kind of driving bevel gear axis for rear axle forging, it is characterised in that: the drive bevel gear forging is an integral structure, including successively
Cone tooth section, the first connecting shaft section, the second connecting shaft section and the transmission shaft of connection, and the cone tooth section, the first connecting shaft section,
Two connecting shaft sections are arranged concentrically with transmission shaft, and the end face of the cone tooth section forms positioning surface, and the conical surface forms gear for processing
Structure, and its big end is connected with first connecting shaft section, the angle formed between the side wall and horizontal plane of the cone tooth section is
45 °, second connecting shaft section is tapered, and the angle formed between its side wall and horizontal plane is 30 °, second connecting shaft section
Big end be connected with first connecting shaft section, and form step surface between the first connecting shaft section and the second connecting shaft section,
The small end of second connecting shaft section is connected with transmission shaft.
2. driving bevel gear axis for rear axle forging according to claim 1, it is characterised in that: in second connecting shaft section and pass
Transition shaft part is additionally provided between moving axis, one end of the transition shaft part is connected to the center of second connecting shaft section one end, separately
One end is connected with the transmission shaft.
3. driving bevel gear axis for rear axle forging according to claim 2, it is characterised in that: the side of the transition shaft part is interior
Recessed arc surface.
4. driving bevel gear axis for rear axle forging according to claim 1, it is characterised in that: first connecting shaft section is cylindricality
Structure.
5. driving bevel gear axis for rear axle forging according to claim 1, it is characterised in that: the transmission shaft is multidiameter shaft, should
Transmission shaft is gradually reduced from junction to the free end diameter of itself and the second connecting shaft section, the lateral surface of the transmission shaft and its end face
Angle be 88 °.
6. driving bevel gear axis for rear axle forging according to claim 1, it is characterised in that: the cone tooth section, the first connecting shaft
Section, the second connecting shaft section and transmission shaft by length it is descending be ordered as transmission shaft, cone tooth section, the first connecting shaft section, second
Connecting shaft section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821343393.6U CN208845678U (en) | 2018-08-20 | 2018-08-20 | Driving bevel gear axis for rear axle forging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821343393.6U CN208845678U (en) | 2018-08-20 | 2018-08-20 | Driving bevel gear axis for rear axle forging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208845678U true CN208845678U (en) | 2019-05-10 |
Family
ID=66356935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821343393.6U Active CN208845678U (en) | 2018-08-20 | 2018-08-20 | Driving bevel gear axis for rear axle forging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208845678U (en) |
-
2018
- 2018-08-20 CN CN201821343393.6U patent/CN208845678U/en active Active
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| GR01 | Patent grant |