CN108006198A - New-energy automobile reducer gear axis and its manufacturing process - Google Patents
New-energy automobile reducer gear axis and its manufacturing process Download PDFInfo
- Publication number
- CN108006198A CN108006198A CN201711358951.6A CN201711358951A CN108006198A CN 108006198 A CN108006198 A CN 108006198A CN 201711358951 A CN201711358951 A CN 201711358951A CN 108006198 A CN108006198 A CN 108006198A
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- China
- Prior art keywords
- pan portion
- new
- energy automobile
- forging
- gear axis
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/0018—Shaft assemblies for gearings
-
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
- Forging (AREA)
Abstract
The invention discloses a kind of new-energy automobile reducer gear axis, including bar portion and pan portion, pan portion is equipped with tooth-shape structure for cylindrical structural and outer wall, and the center that bar portion is vertically set on pan portion is divided into upper boom and lower beam, and bar portion and pan portion are formed for overall structure by metal forging;Its manufacturing process:Shape needed for first warm forging shaping, then cold precision forging tooth-shape structure, last machining make end product, instead of traditional cutting gear hobbing process, production efficiency height saves raw material, reduces production cost；Product Precision height, extrusion forming metal streamline are not cut off at the same time, and grain structure is fine and close, improves Gear Surface Strength, product mechanical performance high quality is good.
Description
Technical field
The present invention relates to speed reducer output shaft, more particularly to it is a kind of forge big reducing than new-energy automobile reducer gear
Axis manufacturing process.
Background technology
Speed reducer output shaft is a component particularly important inside gear reducer, and output shaft is exactly the axis for exporting power, is
The important component of power conveying, at present in the design of speed reducer output shaft, technology also and imperfection, difficult to install, power
Convey and unstable be easiest to occur.State Intellectual Property Office discloses a kind of new speed reducer output shaft
(CN104179789A）, main body is made of fixed seat and shaft core, and the fixed seat is arranged to cake shape, the fixed seat
On be provided with circle installation bail, the vertical center for being arranged on fixed seat of the shaft core, the shaft core is arranged to
The big truncated conical shape of the relatively low end cross-section diameter of tip section diameter.The configurations of speed reducer output shaft, mostly for installation and
Operate steadily consideration.The existing production technology of speed reducer output shaft is generally heated using bar, and pneumatic hammer forges pulling shaping shank,
Pan portion is shaped on electric screw press, then cuts gear hobbing process.State Intellectual Property Office also discloses a kind of gear reducer
Production technology (the CN101602157A of output shaft）, comprise the following steps：A, raw material are bought；B, blanking；C, raw material heat
To 1120-1200 DEG C；D, pulling, round as a ball, shaping base on pneumatic hammer swage block；E, step d blanks are put into friction press
Upper closed mould forging, forges speed reducer output shaft forging；F, remnant forging thermal quenching；G, it is tempered；H, machine tooling；I. finished product.
Prior art production technology machining amount is big, and the gear hobbing process shaping flank of tooth, the production cycle, long efficiency was low, of high cost, metal
Streamline is cut off, and interior tissue density is low, and Gear Surface Strength is low, and impact resistance is poor.
The content of the invention
A kind of new-energy automobile reducer gear axis of forging and molding of present invention offer, the output shaft, production cycle are short-acting
Rate 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, Neng Gouman
The sufficient supporting requirement of auto parts and components.
Present invention is generally directed to the deficiency of existing forming technology at the same time, there is provided one kind is using the cold duplex forging technique manufacture of temperature
New-energy automobile reducer gear axis, warm forging before this, then cold forging, which squeezes, disposably shapes the cylindrical flank of tooth, substitutes cutting gear hobbing process
The flank of tooth is shaped, reduces the process route of machining amount, the process route advantages of simple, production efficiency is high, and cost is low, the cycle
Short, metal streamline is not cut off, and interior tissue density is high, Gear Surface Strength high impact-resistant, saves raw material.
The present invention is achieved by the following technical solution：
New-energy automobile reducer gear axis, including bar portion and pan portion, pan portion are equipped with tooth-shape structure for cylindrical structural and outer wall,
The center that bar portion is vertically set on pan portion is divided into upper boom and lower beam, bar portion and pan portion for overall structure by metal forging and
Into.
Changeover portion, lower changeover portion, the diameter of upper and lower changeover portion are respectively equipped between the upper boom of pan portion and bar portion, lower beam
The respectively greater than diameter of upper boom, lower beam.
Lower beam descends the frustum cone structure for the trend that tapers off for diameter from pan portion.
The new-energy automobile reducer gear axis center machining is the central through hole of perforation；Pan portion upper and lower end face
The fluted circle of machining, is evenly equipped with several lightening holes on groove circle.
Its manufacturing process includes the following steps：1. blanking：Diameter of rod is selected, bar is grown as needed for drawing size cut
Degree；2. base：Peeling scale removal and chamfering；3. ball blast：Blank after base is sent into shot-blasting machine and makees blasting treatment, is increased
Add surface Ra values；4. warm forging：By blank heating to 220 DEG C of ± 20 DEG C of dilute graphite of spraying, 980 DEG C ± 20 DEG C are heated to, first just
Extrusion molding bar portion, then preform pan portion, shape needed for final shaping：The pan portion of cylindrical structural, the upper boom and lower beam of bar portion,
And upper changeover portion and lower changeover portion；5. normalized treatment：Blank is sent into non-oxidation isothermal normalizing furnace and carries out isothermal normalizing processing；
6. base, ball blast, lubrication：Peeling scale removal and chamfering, the blank after base is sent into shot-blasting machine and makees blasting treatment, is increased
Add surface Ra values, surface lubrication processing is carried out after blank blasting treatment；7. cold closed-die forging：Blank is put into cold forging in mould and is extruded into shape
Pan portion outer wall tooth-shape structure；8. machine：Machining, drilling are carried out to blank, reaches the shape and structure of drawing requirement, is formed
Central through hole, groove circle and lightening hole；9. it is heat-treated：Case-carbonizing processing, carburized layer are carried out to the product formed after machining
Deep 0.8-1.2mm, case hardness 58-61HRC；10. clean oiling：Surface clean and oiling antirust.
The present invention has the advantages that compared with prior art:
1. shape needed for warm forging extrusion molding of the present invention, then cold forging is extruded into the outer toothing of shape, and last machining makes terminal
Product, mold arrangement is smaller to supporting press tonnage requirement on single-station forcing press, so as to greatly reduce corollary equipment
Investment；
2. shape needed for warm forging extrusion molding of the present invention, then cold forging is extruded into the outer toothing of shape, be all on forcing press moment it is complete
Squeezed into forging, instead of traditional cutting gear hobbing process shaping flank of tooth, improve stock utilization, production efficiency is high, saves former material
Material and the energy, reduce production cost；
3. shape needed for warm forging extrusion molding of the present invention, then cold forging is extruded into the outer toothing of shape, is all the once property on forcing press
Forging is extruded into shape, and Product Precision is high, extrusion forming metal streamline is not cut off, and grain structure is fine and close, improves Gear Surface Strength, product
Mechanical performance high quality is good.
Brief description of the drawings
Fig. 1 is the structure diagram of new-energy automobile reducer gear axis press forging in the embodiment of the present invention；
Fig. 2 is the structure diagram after the machining of new-energy automobile reducer gear axis in the embodiment of the present invention；
Fig. 3 is the top view of Fig. 2;
Fig. 4 is blank deformation process flow chart of the embodiment of the present invention.
Sequence number in figure：1st, pan portion, 2, tooth-shape structure, 3, upper boom, 4, lower beam, 5, upper changeover portion, 6, lower changeover portion, 7, center
Through hole, 8, groove circle, 9, lightening hole.
Embodiment
The technical solutions of the present invention will be further described by way of example and in conjunction with the accompanying drawings.
Embodiment：Referring to shown in Fig. 1, Fig. 2 and Fig. 3, a kind of new-energy automobile reducer gear axis, including bar portion and pan portion
1, pan portion 1 is equipped with tooth-shape structure 2 for cylindrical structural and outer wall, and the center that bar portion is vertically set on pan portion is divided into upper boom 3
With lower beam 4, changeover portion 5, lower changeover portion 6, upper and lower changeover portion 5,6 are respectively equipped between the upper boom 3 of pan portion and bar portion, lower beam 4
Diameter be respectively greater than upper boom 3, the diameter of lower beam 4, lower beam 4 is from the frustum cone structure of the lower trend that tapers off for diameter of pan portion, bar
Portion and pan portion 1 are formed for overall structure by metal forging；By machining at the center of new-energy automobile reducer gear axis
Form the central through hole 7 of perforation, 1 upper and lower end face of pan portion forms ten lightening holes 9 uniformly distributed on groove circle 8 and groove circle 8.
Shown in Figure 4, its manufacturing process includes the following steps：1. blanking：Diameter of rod is selected, by drawing size cut
Required bar length；2. base：Peeling scale removal and chamfering；3. ball blast：Blank after base is sent into shot-blasting machine and is made
Blasting treatment, increases surface Ra values；4. warm forging：By blank heating to 220 DEG C of ± 20 DEG C of dilute graphite of spraying, 980 DEG C are heated to
± 20 DEG C, first forward extrusion shapes bar portion, then preform pan portion, shape needed for final shaping：The pan portion 1 of cylindrical structural, bar portion
Upper boom 3 and lower beam 4, and upper changeover portion 5 and lower changeover portion 6；5. normalized treatment：Blank is sent into non-oxidation isothermal normalizing furnace
Carry out isothermal normalizing processing, it is ensured that blank surface does not aoxidize, not decarburization；6. base, ball blast, lubrication：Peeling scale removal and
Chamfering, the blank after base is sent into hook type shot-blasting machine and makees blasting treatment, is increased surface Ra values, is adopted after blank blasting treatment
With polymeric lubricant to blank surface lubricated；7. cold closed-die forging：Blank is put into cold forging in mould and is extruded into shape pan portion outer wall
Tooth-shape structure is (2)；8. machine：Machining, drilling are carried out to blank, reaches the shape and structure of drawing requirement, formation center leads to
Hole 7, groove circle 8 and lightening hole 9；9. it is heat-treated：Case-carbonizing processing, carburized layer depth are carried out to the product formed after machining
0.8-1.2mm, case hardness 58-61HRC；10. clean oiling：Surface clean and oiling antirust.
Shape needed for warm forging extrusion molding of the present invention, then cold forging be extruded into the outer toothing of shape, last machining makes end
Product is held, instead of traditional cutting gear hobbing process shaping flank of tooth, production efficiency height saves raw material, reduces and be produced into
This；Extrusion forming metal streamline is not cut off at the same time, and grain structure is fine and close, improves Gear Surface Strength, product mechanical performance is high-quality
Measure.
The diameter of pan portion and bar portion of the present invention is bigger, that is, forging reducing, than big, manufacturing process of the present invention is preferable
The big reducing of forging is solved than easily there is the defects of precision is not high, Product Precision is high.
Embodiment does not form the limit to the scope of the present invention only to facilitate understand technical scheme
System, it is every without departing from any letter perhaps made in technical solution of the present invention according to the technical spirit of the present invention to above scheme
Single modification, equivalent variations and modification, still fall within the scope of the present invention.
Claims (5)
1. new-energy automobile reducer gear axis, including bar portion and pan portion are (1), it is characterised in that:Pan portion is cylindrical structural and outer
Wall be equipped with tooth-shape structure (2), bar portion be vertically set on pan portion center be divided into upper boom (3) with lower beam (4), bar portion and pan portion are (1)
Formed for overall structure by metal forging.
2. new-energy automobile reducer gear axis according to claim 1, it is characterised in that:The pan portion (1) upper boom with bar portion
(3), lower beam (4) between be respectively equipped with changeover portion (5), lower changeover portion (6), the diameter of upper and lower changeover portion (5), (6) is respectively greater than upper boom
(3), the diameter of lower beam (4).
3. new-energy automobile reducer gear axis according to claim 2, it is characterised in that:Lower beam (4) from pan portion and under
The frustum cone structure for the trend that tapers off for diameter.
4. new-energy automobile reducer gear axis according to claim 3, it is characterised in that:The new-energy automobile
Reducer gear axis center machining for perforation central through hole (7)；Machining fluted circle in pan portion upper and lower end face is (8), recessed
Groove circle (8) on be evenly equipped with several lightening holes (9).
5. new-energy automobile reducer gear axis according to claim 4, it is characterised in that:Its manufacturing process is included such as
Lower step：1. blanking：Select diameter of rod, the bar length as needed for drawing size cut；2. base：Peeling scale removal and
Chamfering；3. ball blast：Blank after base is sent into shot-blasting machine and makees blasting treatment, increases surface Ra values；4. warm forging：By blank plus
Heat sprays dilute graphite to 220 DEG C ± 20 DEG C, is heated to 980 DEG C ± 20 DEG C, and first forward extrusion shapes bar portion, then preform pan portion,
Shape needed for final shaping：The pan portion of cylindrical structural (1), the upper boom of bar portion (3) with lower beam (4), and upper changeover portion (5) with lower mistake
Cross section (6)；5. normalized treatment：Blank is sent into non-oxidation isothermal normalizing furnace and carries out isothermal normalizing processing；6. base, ball blast, profit
It is sliding：Peeling scale removal and chamfering, the blank after base is sent into shot-blasting machine and makees blasting treatment, increases surface Ra values, base
Surface lubrication processing is carried out after expecting blasting treatment；7. cold closed-die forging：Blank is put into cold forging in mould and is extruded into shape pan portion outer wall tooth form
Structure is (2)；8. machine：Machining, drilling are carried out to blank, reaches the shape and structure of drawing requirement, forms central through hole
(7), groove circle (8) with lightening hole (9)；9. it is heat-treated：Case-carbonizing processing, carburized layer depth are carried out to the product formed after machining
0.8-1.2mm, case hardness 58-61HRC；10. clean oiling：Surface clean and oiling antirust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711358951.6A CN108006198A (en) | 2017-12-17 | 2017-12-17 | New-energy automobile reducer gear axis and its manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711358951.6A CN108006198A (en) | 2017-12-17 | 2017-12-17 | New-energy automobile reducer gear axis and its manufacturing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108006198A true CN108006198A (en) | 2018-05-08 |
Family
ID=62059395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711358951.6A Withdrawn CN108006198A (en) | 2017-12-17 | 2017-12-17 | New-energy automobile reducer gear axis and its manufacturing process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109454463A (en) * | 2018-12-27 | 2019-03-12 | 重庆市星极齿轮有限责任公司 | Smart car technique for gear inner concave |
| CN114608500A (en) * | 2022-03-28 | 2022-06-10 | 中新(重庆)超高强材料研究院有限公司 | General utensil of examining of commercial car rim |
| CN118650110A (en) * | 2024-08-21 | 2024-09-17 | 江苏金源高端装备股份有限公司 | Pressure-adjustable variable speed forging device and method for gear shaft |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05223117A (en) * | 1991-09-11 | 1993-08-31 | Hino Motors Ltd | Counter shaft and manufacture thereof |
| CN101342566A (en) * | 2008-08-25 | 2009-01-14 | 江苏创一精锻有限公司 | Integral cold forging process for bevel gear shaft |
| JP2009156449A (en) * | 2007-12-28 | 2009-07-16 | O-Oka Corp | Integrally molded gear with gear and spline shaft |
| CN201627904U (en) * | 2010-04-12 | 2010-11-10 | 重庆创精温锻成型有限公司 | Integrated structure of output shaft and shifting gears of automobile gearbox |
| CN201992026U (en) * | 2010-12-30 | 2011-09-28 | 江苏创一精锻有限公司 | Solid forged near-netshape forming triple gear shaft |
| CN102527900A (en) * | 2012-02-15 | 2012-07-04 | 西北工业大学 | Precision forging die of gear shaft and molding method of precision forging die |
| CN103707017A (en) * | 2012-10-01 | 2014-04-09 | 江苏威鹰机械有限公司 | Automatically continuously variable transmission (CVT) V-shaped belt pulley axle finish-forging and plastic- molding process |
| CN207728848U (en) * | 2017-12-17 | 2018-08-14 | 江苏威鹰机械有限公司 | New-energy automobile reducer gear axis |
-
2017
- 2017-12-17 CN CN201711358951.6A patent/CN108006198A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05223117A (en) * | 1991-09-11 | 1993-08-31 | Hino Motors Ltd | Counter shaft and manufacture thereof |
| JP2009156449A (en) * | 2007-12-28 | 2009-07-16 | O-Oka Corp | Integrally molded gear with gear and spline shaft |
| CN101342566A (en) * | 2008-08-25 | 2009-01-14 | 江苏创一精锻有限公司 | Integral cold forging process for bevel gear shaft |
| CN201627904U (en) * | 2010-04-12 | 2010-11-10 | 重庆创精温锻成型有限公司 | Integrated structure of output shaft and shifting gears of automobile gearbox |
| CN201992026U (en) * | 2010-12-30 | 2011-09-28 | 江苏创一精锻有限公司 | Solid forged near-netshape forming triple gear shaft |
| CN102527900A (en) * | 2012-02-15 | 2012-07-04 | 西北工业大学 | Precision forging die of gear shaft and molding method of precision forging die |
| CN103707017A (en) * | 2012-10-01 | 2014-04-09 | 江苏威鹰机械有限公司 | Automatically continuously variable transmission (CVT) V-shaped belt pulley axle finish-forging and plastic- molding process |
| CN207728848U (en) * | 2017-12-17 | 2018-08-14 | 江苏威鹰机械有限公司 | New-energy automobile reducer gear axis |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109454463A (en) * | 2018-12-27 | 2019-03-12 | 重庆市星极齿轮有限责任公司 | Smart car technique for gear inner concave |
| CN114608500A (en) * | 2022-03-28 | 2022-06-10 | 中新(重庆)超高强材料研究院有限公司 | General utensil of examining of commercial car rim |
| CN118650110A (en) * | 2024-08-21 | 2024-09-17 | 江苏金源高端装备股份有限公司 | Pressure-adjustable variable speed forging device and method for gear shaft |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20180508 |