Universal joint assembly adopting large tolerance fork body structural design
A technology of structural design and assembly, applied in the field of auto parts, can solve the problems of rolling deformation of needle roller bearings, wear of cross shaft journals, etc., and achieve the effect of solving serious wear, improving service life and high reliability
Inactive Publication Date: 2012-05-23
FAW GROUP
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[0005] The invention can effectively solve the problems of severe wear of the journal of the cross shaft and rolling deformation of the needle roller bearing, improves the service life of the universal joint assembly, and has the characteristics of easy manufacture, low cost and high reliability.
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[0009] Below in conjunction with accompanying drawing, the present invention will be further described: as figure 1 As shown, the universal joint assembly with a large fork body structure design is composed of a cross shaft assembly 1, a flange fork 2, a welding fork 3, and a retaining ring 4. It is characterized in that: the flange fork 2 and the welding fork 3 The shape of the U port of the fork body adopts a large-capacity needle roller bearing structure, and the installation gap of the cross shaft assembly adopts a large opening structure, and the U port connected with it adopts a tight closing, and the cross shaft assembly is assembled with the flange fork and the welding fork Finally, the needle roller bearings in the middle maximum load-bearing area are completely contained by the fork ear holes within the length of the busbar. After the cross shaft assembly 1 is assembled with the flange fork 2 and the welding fork 3, the retaining ring 4 is used for axial positioning....
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The invention relates to a universal joint assembly adopting large tolerance fork body structural design, which consists of a crossed shaft assembly, a flange fork, a welding fork and a stop ring and is characterized in that fork body U-shaped opening shapes of the flange fork and the welding force adopt large tolerance needle roller bearing structures, an installation notch of the crossed shaft assembly adopts a large-opening structure, a connected lower U-shaped opening adopts a tightening collection opening, and after the crossed shaft assembly is assembled with the flange fork and the welding fork, a needle roller bearing in the maximum bearing region in the middle is completely accommodated by a fork ear hole in a bus length range. The universal joint assembly can effectively solve the problems of severe abrasion of a shaft neck of a crossed shaft and milling deformation of a needle roller bearing, the service life of the universal joint assembly is prolonged, and the universal joint assembly has the characteristics that the manufacture is easy, the cost is low, the reliability is high, and the like.
Description
technical field [0001] The invention relates to a universal joint assembly designed with a large fork body structure, belonging to the technical field of auto parts. Background technique [0002] At present, the typical failure mode of the universal joint assembly is the severe wear of the cross shaft journal and the rolling deformation of the needle roller bearing. If it is too small, only part of the needle roller can effectively bear the load within the entire length of the busbar, making the load distribution of the needle roller busbar extremely uneven and causing premature failure at the end position; (2) The non-convex design of the needle roller busbar results in The edge effect of stress peak occurs in the finite length contact edge region. Based on the above situation, a universal joint assembly with a large fork body structure has been developed and designed, which effectively solves the above-mentioned shortcomings of the universal joint assembly. Contents of ...
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IPC IPC(8): F16D3/16
Inventor 李庆臣于吉龙
Owner FAW GROUP