Wear ring for spring of friction coupling
AssigneeCaterpillar Tractor Co.
InventorRichard L. Hedgcock
Life of this patent
Estimating the term…
Abstract
A power drive assembly having a housing, a drive mechanism removably installed in the housing, an annular biasing spring installed in the housing for biasing the mechanism, and a wear ring arrangement including an undercut annular groove in the mechanism opening coaxially toward an end of the biasing spring and a wear ring removably installed in the groove to engage the end of the biasing spring in the assembled arrangement of the power drive assembly. The wear ring has a cross section complementary to the undercut groove cross section whereby the mechanism may be installed in the housing with the groove opening downwardly and the wear ring maintained in the groove for facilitated assembly of the power drive.
Claims20
In a power drive assembly having a housing, a drive mechanism removably installed in said housing, and an annular biasing spring installed in said housing for biasing said mechanism, an improved wear ring arrangement comprising:
- means on said mechanism defining an undercut annular groove opening coaxially toward an end of the biasing spring;
- and
- a split wear ring removably installed in said groove to engage said end of the biasing spring in the assembled arrangement of the power drive assembly, said wear ring having a cross section complementary to the undercut groove cross section whereby the mechanism may be installed in the housing with the groove opening downwardly and the wear ring maintained therein to removably engage said end of the biasing spring.
In a power drive assembly having a housing, a drive mechanism removably installed in said housing, and an annular biasing spring installed in said housing for biasing said mechanism, an improved wear ring arrangement comprising:
- means on said housing defining an undercut annular groove opening coaxially toward an end of the biasing spring;
- and
- a split wear ring removably installed in said groove to engage said end of the biasing spring in the assembled arrangement of the power drive assembly, said wear ring having a cross section complementary to the undercut groove cross section whereby the housing may be installed about the mechanism with the groove opening downwardly and the wear ring maintained therein to removably engage said end of the biasing spring.
Dependencies are inferred from the claim text.