CN202215704U - Integrally-forged net shape high-toughness square groove bevel gear - Google Patents
Integrally-forged net shape high-toughness square groove bevel gear Download PDFInfo
- Publication number
- CN202215704U CN202215704U CN2011202342541U CN201120234254U CN202215704U CN 202215704 U CN202215704 U CN 202215704U CN 2011202342541 U CN2011202342541 U CN 2011202342541U CN 201120234254 U CN201120234254 U CN 201120234254U CN 202215704 U CN202215704 U CN 202215704U
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- China
- Prior art keywords
- square groove
- bevel gear
- shaped
- umbrella
- toughness
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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.)
- Expired - Lifetime
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- Gears, Cams (AREA)
Abstract
The utility model provides an integrally-forged net shape high-toughness square groove bevel gear, which is provided with a hub and an umbrella tooth profile, wherein the hub is provided with a shaft hole; square grooves are symmetrically formed in the shaft hole; and the square grooves are blind grooves. The umbrella tooth profile, the hub and the square grooves of the bevel gear are formed at a time by hot forging extrusion, so the bevel gear has a compact metallographic structure and has higher strength and toughness; and the square grooves are the blind grooves, and a pin assembled in the shaft hole of the gear is difficult to slip, so the bevel gear has relatively high practical value.
Description
Technical field
The utility model relates to a kind of solid forging high tenacity square groove umbrella gear that is shaped only.
Background technique
The tradition umbrella gear all adopts machine cut processing, and square groove is processed with milling cutter, because technological reason square groove two end mills are logical, thereby causes the pin landing that is assemblied in the gear axis hole easily, therefore is necessary to improve.
The model utility content
The technical problem that the utility model solves: a kind of solid forging high tenacity square groove umbrella gear that is shaped only is provided; Umbrella profile of tooth, wheel hub and square groove adopt forge hot extruding single forming; Metallographic structure is fine and close; Have better intensity and toughness, square groove is blind groove, and the pin that is assemblied in the gear axis hole is difficult for landing.
The technological scheme that the utility model adopts: the solid forging high tenacity square groove umbrella gear that is shaped only, have wheel hub and umbrella profile of tooth, be shaped on axis hole on the said wheel hub, the interior symmetry of said axis hole is shaped on square groove, and said square groove is blind groove.
Wherein, said umbrella profile of tooth, wheel hub and square groove adopt forge hot extruding single forming.
Further, said square groove is two, and symmetry is located at the axis hole both sides.
Further, the surface hardness of said umbrella gear is 58-62HRC, and core hardness is 33-48HRC.
The utility model compared with prior art is the finish forge umbrella gear, and metallographic structure is fine and close, has better intensity and toughness; Nitrogencase hardening technology is adopted in heat treatment; Surface hardness 58-62HRC, core hardness 33-48HRC can provide the surface abrasion resistance property of high-quality; Ensure tooth base high tenacity simultaneously, fault in use can not ftracture.
Description of drawings
Fig. 1 is the utility model structural front view;
Fig. 2 is the utility model structure plan view;
Fig. 3 is the utility model structural perspective.
Embodiment
A kind of embodiment of the utility model is described below in conjunction with accompanying drawing 1,2,3.
The solid forging high tenacity square groove umbrella gear that is shaped only has wheel hub 2 and umbrella profile of tooth 1, is shaped on axis hole 4 on the said wheel hub 2, and symmetries are shaped on square groove 3 in the said axis hole 4, and said square groove 3 is blind groove, and square groove 3 is two, and symmetry is located at axis hole 4 both sides.Said umbrella profile of tooth 1, wheel hub 2 and square groove 3 adopt forge hots extruding single formings.The surface hardness of said umbrella gear is 58-62HRC, and core hardness is 33-48HRC.
This reality has novelly forges the forge hot extrusion mouldings with 20CrMnTi bar one fire two and goes out umbrella profile of tooth 1, wheel hub 2 and square groove 3.Be assemblied in after machining and heat treatment are good in the semitrailer support device gear-box, square groove 3 places have a straight pin and screw mandrel head to link, and the interlock screw mandrel supports trailer.
The utility model is the finish forge umbrella gear, and metallographic structure is fine and close, has better intensity and toughness; Nitrogencase hardening technology is adopted in heat treatment; Surface hardness 58-62HRC, core hardness 33-48HRC can provide the surface abrasion resistance property of high-quality; Ensure tooth base high tenacity simultaneously, fault in use can not ftracture.
--cylindrical turning base--heating in medium frequency----precision forging (umbrella profile of tooth 1, wheel hub 2 and square groove 3 be single forming simultaneously)--machining---carburizing and quenching heat treatment that rough forge is shaped (preforming) that the utility model technology is following: sawing.
The above only is the preferred embodiments of the utility model, so all equivalences of doing according to the described structure of the utility model patent application right claimed range, characteristic and principle change or modify, includes in the utility model patent application right claimed range.
Claims (4)
1. the solid forging high tenacity square groove umbrella gear that is shaped only has wheel hub (2) and umbrella profile of tooth (1), is shaped on axis hole (4) on the said wheel hub (2), and the interior symmetry of said axis hole (4) is shaped on square groove (3), it is characterized in that: said square groove (3) is blind groove.
2. the solid forging according to claim 1 high tenacity square groove umbrella gear that is shaped only is characterized in that: said umbrella profile of tooth (1), wheel hub (2) and square groove (3) adopt forge hot extruding single forming.
3. the solid forging according to claim 1 and 2 high tenacity square groove umbrella gear that is shaped only, it is characterized in that: said square groove (3) is two, symmetry is located at axis hole (4) both sides.
4. the solid forging according to claim 3 high tenacity square groove umbrella gear that is shaped only, it is characterized in that: the surface hardness of said umbrella gear is 58-62HRC, core hardness is 33-48HRC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202342541U CN202215704U (en) | 2011-07-05 | 2011-07-05 | Integrally-forged net shape high-toughness square groove bevel gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202342541U CN202215704U (en) | 2011-07-05 | 2011-07-05 | Integrally-forged net shape high-toughness square groove bevel gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202215704U true CN202215704U (en) | 2012-05-09 |
Family
ID=46014960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202342541U Expired - Lifetime CN202215704U (en) | 2011-07-05 | 2011-07-05 | Integrally-forged net shape high-toughness square groove bevel gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202215704U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156635A (en) * | 2015-06-30 | 2015-12-16 | 山东温岭精锻科技有限公司 | Differential shell and forging process and forging equipment thereof |
| CN105690037A (en) * | 2016-03-12 | 2016-06-22 | 洛阳华冠齿轮股份有限公司 | Near-net forming method for tooth profile of red copper electrode for differential planetary and half axle gear |
-
2011
- 2011-07-05 CN CN2011202342541U patent/CN202215704U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156635A (en) * | 2015-06-30 | 2015-12-16 | 山东温岭精锻科技有限公司 | Differential shell and forging process and forging equipment thereof |
| CN105690037A (en) * | 2016-03-12 | 2016-06-22 | 洛阳华冠齿轮股份有限公司 | Near-net forming method for tooth profile of red copper electrode for differential planetary and half axle gear |
| CN105690037B (en) * | 2016-03-12 | 2018-06-12 | 洛阳华冠齿轮股份有限公司 | A kind of near-net-shape method of differential spider, axle shaft gear red copper electrode tooth form |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120509 |