CN2348182Y - Toothed wheel - Google Patents
Toothed wheel Download PDFInfo
- Publication number
- CN2348182Y CN2348182Y CN 98241684 CN98241684U CN2348182Y CN 2348182 Y CN2348182 Y CN 2348182Y CN 98241684 CN98241684 CN 98241684 CN 98241684 U CN98241684 U CN 98241684U CN 2348182 Y CN2348182 Y CN 2348182Y
- Authority
- CN
- China
- Prior art keywords
- gear
- hardness
- sulfurized layer
- microns
- utility
- Prior art date
- 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 - Fee Related
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- Gears, Cams (AREA)
Abstract
The utility model discloses a gear. A low-hardness sulfide layer provide with multiple micropores is formed on a gear working surface 2 after the gear is implemented with sulphurizing, the thickness of the low-hardness sulfide layer is 5 microns to 30 microns. The sulfide layer can soften the hardness of the surface of the gear, can enhance the lubrication between the engagement of gears, can improve the friction, can reduce the abrasion, can increase the combination performance of gear driving, and can extend the service life of the gear.
Description
The utility model relates to mechanical parts, refers more particularly to gear.
Gear is a modal part in the gearing, the transmission of intermeshing of gear by the different numbers of teeth, reach the purpose of deceleration or speedup, gear often adopts carbon steel or alloyed steel to make, after heat treatment again gear tooth is quenched, surface Hardening Treatment such as nitriding nitriding or laser process are to improve its surface hardness, after but the gear tooth surface hardness improves, its surperficial micro-bulge hardness also improves thereupon, make gear engagement before entering normal wear, will carry out the break-in of long period, so that polish micro-bulge, consumed the energy, the hard particulate that weares and teares is then fallen in the lubricant oil, gear band engaging contact by transmission closes in the gap, participate in the wheel odontotripsis, make the aggravation of gear tooth surface abrasion, shorten the operating life of gear.
The purpose of this utility model provides a kind of reinforcement gear tooth intensity, and softening surperficial micro-bulge hardness, and lubricated can improve gear engagement the time reduce the gear of wheel odontotripsis.
In order to achieve the above object, the utility model forms the sulfurized layer that one deck has many micropores, low hardness to the working surface through the gear tooth after the surface treatment, and the thickness of sulfurized layer is 5 to 30 microns.
Sulfurized layer has the crystal structure of graphite of being similar to, quality is loose, many micropores, low hardness, be equivalent to solid lubricant, when gear tooth during,, avoided the direct contact of wheel between cog metal because sulfurized layer is arranged in engagement driving, and sulfurized layer is under frictional force action, can produce translation gliding, play the peak load shifting effect, soften hard micro-bulge on the gear tooth surface, increased the real contact area of wheel between cog, contact stress is evenly distributed, and transmission is more steady, and the sulfurized layer particulate of low hardness can not participate in wearing and tearing.Because sulfurized layer has microporous structure and is easy to adsorpting lubrication oil, forms even oil film at the gear tooth working surface, thus lubricated when having strengthened gear teeth meshing.
Because the utility model has adopted the structure that increases sulfurized layer on the gear tooth surface, softened the hardness of the soft tooth surface of gear, strengthened lubricating between gear teeth meshing, improve friction and reduced wearing and tearing, shortened the running-in period of gear teeth meshing, gear-driven combination property is improved, and the operating life that has prolonged gear.
Below in conjunction with accompanying drawing in detail, the utility model is described in detail:
Fig. 1 is a structural representation of the present utility model, the utility model comprises gear body 1, gear teeth working surface 2, after the gear teeth are carried out vulcanizing treatment, forms one deck and have many micropores on gear teeth working surface 2, the sulfurized layer 3 of low hardness, the thickness of sulfurized layer 3 are 10 microns.
Sulfurized layer of the present utility model can form at the various forms of gear tooth tables of making through the ferrous material after the various surface treatments.
Claims (2)
1. a gear comprises gear body (1), gear teeth working surface (2), it is characterized in that: after gear is carried out vulcanizing treatment, go up the sulfurized layer (3) that formation one deck has many micropores, low hardness at gear tooth working surface (2).
2. gear according to claim 1 is characterized in that: the thickness of described sulfurized layer (3) is 5 to 30 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98241684 CN2348182Y (en) | 1998-10-26 | 1998-10-26 | Toothed wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98241684 CN2348182Y (en) | 1998-10-26 | 1998-10-26 | Toothed wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2348182Y true CN2348182Y (en) | 1999-11-10 |
Family
ID=33988396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98241684 Expired - Fee Related CN2348182Y (en) | 1998-10-26 | 1998-10-26 | Toothed wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2348182Y (en) |
-
1998
- 1998-10-26 CN CN 98241684 patent/CN2348182Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |