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Process of durability improvement of gear tooth flank surface

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B24B-001/00   
미국특허분류(USC) 451/033; 451/034; 451/035; 451/037; 451/047; 451/054; 451/055; 451/057
출원번호 US-0170198 (2005-06-29)
등록번호 US8062094 (2011-11-07)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 5  인용 특허 : 29
초록
▼

Pinion gears for planetary gear transmissions are hobbed, heat treated, and then ground to get better control of the leads/profiles on all the gear teeth. Then a light shot peening is applied to the tooth flanks to achieve the desired compressive residual stresses on the tooth surface. By applying the process in the controlled manner specified, the surface is not over-cold worked. Next, a chemically assisted isotropic surface treatment is applied over the pinion gears to improve the surface finish on the gear teeth. For low speed applications the surface...

대표
청구항
▼

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows: 1. A method for improving the durability of a pinion gear comprising the steps of:hobbing and heat treating the pinion gear;grinding tooth flanks on the pinion gear after hobbing and heat treating the pinion gear;shot peening the tooth flanks, after grinding the tooth flanks, of the pinion gear; and,polishing surfaces of the tooth flanks, after shot peening, using a chemically assisted surface finishing process to obtain a maximum tooth flank s...

이 특허에 인용된 특허 (29)

  1. Litvin Faydor L. ; Chen Yih-Jen ; Heath Gregory F. ; Sheth Vijay J. ; Chen Ningxin. Apparatus and method for precision grinding face gear. USP2000116146253.
  2. Hashimoto Fukuo F. H. (North Canton OH) Zhou Rao-Sheng (Canal Fulton OH) Howlett Kevin (North Canton OH). Bearing surfaces with isotropic finish. USP1996045503481.
  3. Suzuki Kenichi (Nagoya JPX) Kajino Masaki (Nagoya JPX) Ogawa Kazuyoshi (Kasugai JPX) Asano Takashi (Aichi JPX) Ogino Mineo (Aichi JPX) Aihara Hideo (Toyota JPX) Shimizu Fumio (Aichi JPX) Onishi Masaz. Brightening chemical polishing solution for hardened steel article and method of chemically polishing said article in th. USP1995125477976.
  4. Zobbi Robert G. (Southbury CT) Michaud Mark (Bristol CT). Composition and method for metal surface refinement. USP1987114705594.
  5. Ken Beel CA; David Fisher CA; Adrian Russell CA; George Folprecht CA. Face gear manufacturing method and apparatus. USP2002056390894.
  6. Hamasaka Naoji,JPX ; Nakao Chikara,JPX ; Kuse Takashi,JPX. Gear shot peening method. USP1999065911780.
  7. Lev Leonid Charles ; Weiner Anita Miriam ; Harris Stephen Joel. Gear tooth smoothing and shaping process. USP2001016170156.
  8. Grindahl Robert B. (Saginaw MI). High stress nodular iron gears and method of making same. USP1980094222793.
  9. Kovach Joseph A. (Aurora OH) Burke John M. (Kirtland OH). Machining and apparatus. USP1992075129190.
  10. Taipale Dale L. (Libertyville IL). Means of improving gear life. USP1979094167864.
  11. Wern, Michael J.. Media blasting apparatus and method to prevent gear pitting. USP2003096612909.
  12. Michaud Mark D. (Bristol CT). Metal surface refinement using dense alumina-based media. USP1989044818333.
  13. Fuchs ; Henry O.. Method and apparatus for measuring intensity of peening of small surfaces. USP1978074102176.
  14. Michaud Mark D. (Bristol CT) Zobbi Robert G. (Southbury CT). Method and composition for refinement of metal surfaces. USP199306RE34272.
  15. Meister Thomas J. (Richwood OH). Method for enhancing the wear performance and life characteristics of a brake drum. USP1993035193375.
  16. Michaud Mark D. (Bristol CT) Michaud Robert G. (Bristol CT) Tirendi Frank (Hamden CT) Zobbi Robert G. (Southbury CT). Method for refinement of metal surfaces. USP1985014491500.
  17. Feld Paul G. (La Mirada CA). Method of inspecting shot peened surfaces for extent of coverage. USP1976043950642.
  18. Kovach Joseph A. (Aurora OH) McCartney Dale B. (Painesville OH). Method of making ring gear and ring gear therefrom. USP1990084949456.
  19. Johnson Daniel E. (Dallas TX). Method of prestressing the working surfaces of pressure chambers or cylinders. USP1982104354371.
  20. Rokutanda Hitoshi,JPX ; Takahashi Toru,JPX ; Kurosaki Junkou,JPX ; Ito Toshiroh,JPX. Method of shot peening a hardened metal product with shot having high hardness. USP1999065916383.
  21. Bossler ; Jr. Robert B. (Hacienda Heights CA). Offset face gear transmission. USP1993015178028.
  22. Straub John C. (2508 Lincolnway West South Bend IN 46628). Process of compression stressing metals to increase the fatigue strength thereof. USP1977074034585.
  23. Zobbi Robert G. (Southbury CT). Reducing surface roughness of metallic objects and burnishing liquid used. USP1992105158629.
  24. Tanaka Susumu,JPX ; Ohori Manabu,JPX. Rolling bearing. USP2001116315455.
  25. Amy A. Andr (Lafayette LA) Babineaux Jules (Scott LA). Shot-peening method. USP1987094693102.
  26. Hatano Atsumi (Komaki JPX) Nakamura Sadayuki (Mie-gun JPX) Yoshida Makoto (Hadano JPX) Okada Yoshio (Atsugi JPX) Matsumoto Takashi (Yokohama JPX). Steel for gear, gear superior in strength of tooth surface and method for producing same. USP1997015595613.
  27. Trudeau, Todd A.; Bancroft, Daniel W.; Qiao, Cong Yue; Dooley, Douglas W.. Surface treatment of prefinished valve seat inserts. USP2003026519847.
  28. Chiba, Nobutaka; Nanbu, Toshikazu; Kano, Makoto; Watanabe, Jun; Ushijima, Kenshi; Omata, Masahiro; Oota, Minoru; Ueda, Hiroo; Wakuta, Manabu. Traction drive rotary assembly and process for producing rolling element thereof. USP2003106629906.
  29. Minegishi Kiyoji (Aichi JPX). Worm speed reducer, and manufacturing method for worm and worm wheel. USP1994015279174.

이 특허를 인용한 특허 피인용횟수: 5

  1. Wern, Michael J.. Apparatus and method for processing a workpiece. USP20181010086483.
  2. Sroka, Gary; Winkelmann, Lane W.; Michaud, Mark D.. Method for inspecting and refurbishing engineering components. USP2015119180568.
  3. Lu, Xiaobin. Method of texturing a bearing surface of a roller cone rock bit. USP2013048418332.
  4. Lu, Xiaobin. Patterned texturing of the seal surface for a roller cone rock bit. USP2014048689907.
  5. Beckman, Micah; Oyegun, Osamuyimen A.. Systems and methods for finishing flow elements. USP2017099751187.

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