CN207728853U - Vehicle automatic transmission differential mechanism right axle shaft - Google Patents
Vehicle automatic transmission differential mechanism right axle shaft Download PDFInfo
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- CN207728853U CN207728853U CN201721761241.3U CN201721761241U CN207728853U CN 207728853 U CN207728853 U CN 207728853U CN 201721761241 U CN201721761241 U CN 201721761241U CN 207728853 U CN207728853 U CN 207728853U
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- diameter
- right axle
- axle shaft
- axle
- automatic transmission
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Abstract
The utility model discloses a kind of vehicle automatic transmission differential mechanism right axle shafts, including right axle shaft ontology, the middle part of the right axle shaft ontology is waist-drum-shaped structure, the middle part both ends diameter of axle is not of uniform size, the axis surface of diameter of axle small end is followed successively by toothing outside cylindrical structure and diameter of axle small end by middle part outward, and the axis surface of diameter of axle big end is the outer toothing of diameter of axle big end, and the right axle shaft ontology is that overall structure is formed by metal forging, production efficiency height saves raw material, reduces production cost；Product accuracy height, extrusion forming metal streamline are not cut off simultaneously, and grain structure is fine and close, improves Gear Surface Strength, product mechanical performance high quality is good.
Description
Technical field
The utility model is related to differential mechanism right axle shafts.
Background technology
Automatic gearbox right axle shaft is used for passing power, belongs to large torque part.Existing manufacturing process directly uses
Then metal bar machining machines, rolls big small end external tooth.Existing manufacturing process：1. base material is directly processed, internal group
It knits loose；2. the rolling forming flank of tooth is easy to damage tooth root, cause gear integral strength low, it is of poor quality.
State Intellectual Property Office discloses a kind of automobile or so semiaxis forging technology CN201510472497.1）, including
Following processing step：1., blanking：The round steel for selecting diameter ￠ 32mm is carried out with sawing machine blanking by the length of process chart requirement
Blanking, error in length 2-3mm;2., heating：For intermediate frequency heating to 950-1100 DEG C, temperature must not be excessively high with too low, temperature mistake
Height can cause product burning, and temperature is too low to cause product forging failure；3., blocking：Blocking is carried out with 400T friction presses,
The ￠ 32mm round steel heated is put into Preform Die and carries out blocking, the circle blocking of upper end ￠ 32mm to ￠ 35mm is forged first
Justified again by forging and molding to ￠ 36.8mm afterwards；4., forming：It is shaped with 630T friction presses, forging mold preheating before shaping
15-20 minutes, then the good blank of blocking is put into mold cavity and is forged, blank final forging temperature is 800 DEG C or more；
5., trimming：It cuts off extra overlap with 200T punching machines, waste material is blown off forge piece using pneumatic mode while excision；6., adjust
Matter：Carried out with desk stove it is quenched, until interior tissue and hardness reach drawing prescribed requirement；7., ball blast：It is clear with crawler type ball blast
Reason machine carries out Shot Blasting to forging surface, after oxide skin removal is clean；8., packaging：By the good product of ball blast
Appearance detection is carried out, upper antirust oil carries out antirust after qualified, is then packed, you can transport is directly put in storage.The preparation
Method is passed through heating, blocking, is reshaped, and forging technology is complicated, waste of energy, low production efficiency, and production cost is high.
Invention content
The utility model provides a kind of automatic gearbox right axle shaft of forging and molding, and the right axle shaft is with short production cycle,
Stock utilization is high, and processing cost is low, and metal streamline is not cut off, and grain structure is fine and close, improves Gear Surface Strength mechanical performance
Height disclosure satisfy that the mating requirement of auto parts and components.
The utility model is achieved by the following technical solution：
The middle part of vehicle automatic transmission differential mechanism right axle shaft, including right axle shaft ontology, the right axle shaft ontology is waist-drum-shaped
Structure, the middle part both ends diameter of axle is not of uniform size, and the axis surface of diameter of axle small end is followed successively by cylindrical structure outward by middle part and the diameter of axle is small
The axis surface of the outer toothing in end, diameter of axle big end is the outer toothing of diameter of axle big end, and the right axle shaft ontology is overall structure by gold
Category forges.
The central cutting of the right axle shaft ontology is processed as the central through hole of perforation, and the central through hole is by size
The different cavity of diameter and adapter cavity are constituted, and diameter of axle small end external tooth axis of no-feathering surface corresponds to the small internal diameter cavity of central through hole.
The middle part waist-drum-shaped structure machining is around the quoit that simultaneously bottom is connect with right axle shaft ontology.
The utility model has the advantages that compared with prior art:
1. the utility model is extruded into the big small end external tooth structure of shape by shape needed for cold forging extrusion molding, then cold forging, most
Machining makes end product afterwards, and mold arrangement is smaller to mating press tonnage requirement on single-station forcing press, from
And greatly reduce the investment of corollary equipment；
2. the utility model is extruded into the big small end external tooth structure of shape by shape needed for cold forging extrusion molding, then cold forging, all
It is that moment completion forging is squeezed on forcing press, instead of traditional machining, improves stock utilization, production efficiency is high, section
Raw material and the energy are saved, production cost is reduced；
3. the utility model is extruded into the big small end external tooth structure of shape by shape needed for cold forging extrusion molding, then cold forging, all
It is that primary property forging is extruded into shape on forcing press, product accuracy is high, extrusion forming metal streamline is not cut off, and grain structure causes
It is close, Gear Surface Strength is improved, product mechanical performance high quality is good.
Description of the drawings
Fig. 1 is the structural schematic diagram of vehicle automatic transmission differential mechanism right axle shaft press forging in the utility model embodiment；
Fig. 2 is the structural schematic diagram after the machining of vehicle automatic transmission differential mechanism right axle shaft in the utility model embodiment.
Serial number in figure：1, middle part, 2, cylindrical structure, 3, the outer toothing of diameter of axle small end, 4, the outer toothing of diameter of axle big end, 5,
Central through hole, 6, quoit.
Specific implementation mode
The technical solutions of the present invention will be further described by way of example and in conjunction with the accompanying drawings.
Embodiment：Shown in Figure 1, vehicle automatic transmission differential mechanism right axle shaft is used for BYD speed changer model
The middle part 1 of 6HDT45, including right axle shaft ontology, the right axle shaft ontology are waist-drum-shaped structure, and the middle part both ends diameter of axle is not of uniform size,
The axis surface of diameter of axle small end is followed successively by toothing 3 outside cylindrical structure 2 and diameter of axle small end, the axis of diameter of axle big end outward by middle part 1
Surface is the outer toothing 4 of diameter of axle big end, and the right axle shaft ontology is that overall structure is formed by metal forging；The right axle shaft
The central cutting of ontology is processed as the central through hole 5 of perforation, and the central through hole 5 is by the different cavity of size internal diameter and transition
Chamber is constituted, and the outer 3 axis surface of toothing of diameter of axle small end corresponds to the small internal diameter cavity of central through hole 5；The 1 waist-drum-shaped structure of middle part
Machining is around the quoit 6 that simultaneously bottom is connect with right axle shaft ontology.
Embodiment is not constituted and protects model to the utility model only to facilitate understand the technical solution of the utility model
The limitation enclosed, it is every without departing from technical solutions of the utility model perhaps according to the technical essence of the utility model to top
Any simple modification, equivalent change and modification made by case, still fall within scope of protection of the utility model.
Claims (3)
1. (1) the middle part of vehicle automatic transmission differential mechanism right axle shaft, including right axle shaft ontology, the right axle shaft ontology is waist-drum-shaped
(2) and axis structure, the middle part both ends diameter of axle is not of uniform size, (1) the axis surface of diameter of axle small end is followed successively by cylindrical structure by middle part outward
(3), the axis surface of diameter of axle big end is that (4), the right axle shaft ontology is whole to toothing outside diameter of axle big end to the outer toothing of diameter small end
Structure is formed by metal forging.
2. vehicle automatic transmission differential mechanism right axle shaft according to claim 1, it is characterised in that:The right axle shaft ontology
Central cutting be processed as perforation central through hole (5), the central through hole is (5) by size internal diameter different cavity and adapter cavity
It constitutes, diameter of axle small end external tooth axis of no-feathering surface corresponds to the small internal diameter cavity of central through hole (5).
3. vehicle automatic transmission differential mechanism right axle shaft according to claim 1 or 2, it is characterised in that:The middle part is (1)
Waist-drum-shaped structure machining be around and the quoit that is connect with right axle shaft ontology of bottom (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721761241.3U CN207728853U (en) | 2017-12-17 | 2017-12-17 | Vehicle automatic transmission differential mechanism right axle shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721761241.3U CN207728853U (en) | 2017-12-17 | 2017-12-17 | Vehicle automatic transmission differential mechanism right axle shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207728853U true CN207728853U (en) | 2018-08-14 |
Family
ID=63098720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721761241.3U Active CN207728853U (en) | 2017-12-17 | 2017-12-17 | Vehicle automatic transmission differential mechanism right axle shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207728853U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131440A (en) * | 2017-12-17 | 2018-06-08 | 江苏威鹰机械有限公司 | Vehicle automatic transmission differential mechanism right axle shaft and its manufacturing process |
-
2017
- 2017-12-17 CN CN201721761241.3U patent/CN207728853U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131440A (en) * | 2017-12-17 | 2018-06-08 | 江苏威鹰机械有限公司 | Vehicle automatic transmission differential mechanism right axle shaft and its manufacturing process |
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