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Outer joint member for fixed constant velocity universal joint

一种等速万向接头、外侧接头的技术，应用在发动机元件、齿轮变速机构、弹性联轴器等方向，能够解决没有记载精加工等问题，达到成品率提高、低成本生产、制造成本降低的效果

Active Publication Date: 2011-11-23
NTN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, in the above-mentioned Patent Document 1, although it is described that each part is formed by cold forging, it is not described that finishing is performed by this cold forging.

Method used

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  • Outer joint member for fixed constant velocity universal joint
  • Outer joint member for fixed constant velocity universal joint
  • Outer joint member for fixed constant velocity universal joint

Examples

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Comparison scheme
Effect test

Embodiment Construction

[0056] The following is based on Figure 1 to Figure 19 Embodiments of the present invention will be described. figure 1 with figure 2 It is a fixed type constant velocity universal joint using the outer joint member of the present invention. This fixed constant velocity universal joint is a birfield type, and its main constituent elements are: an outer ring 10 as an outer joint part, an inner ring 20 as an inner joint part, balls 30, and a spacer 40, and includes The inner part 50 which consists of the inner ring 20, the ball 30, and the spacer 40 is accommodated in the outer ring 10 so that angular displacement may be performed.

[0057] The outer ring 10 is made of carbon steel for mechanical structure, and has a cup shape with one end open, and a plurality of raceway grooves 12 extending in the axial direction are formed on the inner diameter surface 14 at equal intervals in the circumferential direction. In addition, the space between the adjacent track grooves in the...

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Abstract

Provided is an outer joint member for a fixed constant velocity universal joint, capable of being produced with an improved yield ratio and reduced production cost by reducing the number of man-hour by a reduction in the amount of work after forging. An outer joint member for a fixed constant velocity universal joint, provided with a cup section (16) and a shaft section (18) which extends in the axial direction from the bottom of the cup section (16). The outer joint member consists of carbon steel for mechanical structures, and the following portions of the outer joint member are finished by cold forging: track grooves (12), inner diameter spherical surface sections (14a), chamfers (12b) at the cup entrance, track chamfers (12c), chamfers (12a) at the track entrances, portions of the outer diameter surface of the cup section (16), said portions excluding a boot mounting section (19), and a center hole (13) in an end surface (18a) of the shaft section (18).

Description

technical field [0001] The invention relates to an outer joint component of a fixed constant velocity universal joint. Background technique [0002] Constant velocity universal joints include fixed constant velocity universal joints that allow only angular displacement and sliding constant velocity universal joints that allow not only angular displacement but also axial displacement. Fixed constant velocity universal joints include birfield type (BJ) or undercut (undercutfree) type (UJ), etc., sliding type constant velocity universal joints include double offset (double offset) type constant velocity universal joints (DOJ) or cross groove (cross groove) type constant velocity universal joint (LJ), etc. [0003] The BJ type fixed constant velocity universal joint has: the outer ring, which is used as the outer joint part, and a plurality of raceway grooves are formed in the axial direction on the inner spherical surface at equal intervals in the circumferential direction; th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D3/20B21K1/14F16D3/2237F16D3/2245
CPCB21K1/762B21K1/765F16D3/223F16D3/2245F16D2003/22309F16D2250/0023
Inventor 小林正纯山崎起佐雄石岛实
Owner NTN CORP
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