Shaft-mounted equipments
First Claim
1. In an assembly that comprises a housing having opposed walls, a bearing structure located on each of said walls, a circular shaft having longitudinally spaced areas thereof extending within the bearing structures whereby said bearing structures support the shaft for rotational motion around its longitudinal axis, operating mechanism mounted on the shaft in the space between the bearing structures, and shim means between the operating mechanism and one of the bearing structures:
- the improvement wherein the shim means comprises two rotary collars adapted to encircle the shaft, one collar having an internal helical thread thereon, the other collar having an external helical thread thereon, the internal thread and external thread being meshed together whereby relative rotation of one collar on the other varies the axial length of the collar assembly, said collars having flat radial annular end surfaces of substantial area engageable respectively with the operating mechanism and said one bearing structure to prevent axial play of the operating mechanism on the shaft.
1 Assignment
0 Petitions
Accused Products
Abstract
An adjustable shim structure for use between shaft-mounted equipments and aft-support bearings, whereby axial play of the equipments is prevented. The shim structure includes two collars having meshed threads enabling the collars to be rotated relative to one another for adjusting the axial length of the collar assembly. The shaft may be connected to each bearing by means of an expansible plug extending within a circular cavity in the shaft; the plug exerts an outward radial force on the shaft wall, thus expanding the shaft into an interference fit with the associated bearing.
37 Citations
11 Claims
-
1. In an assembly that comprises a housing having opposed walls, a bearing structure located on each of said walls, a circular shaft having longitudinally spaced areas thereof extending within the bearing structures whereby said bearing structures support the shaft for rotational motion around its longitudinal axis, operating mechanism mounted on the shaft in the space between the bearing structures, and shim means between the operating mechanism and one of the bearing structures:
- the improvement wherein the shim means comprises two rotary collars adapted to encircle the shaft, one collar having an internal helical thread thereon, the other collar having an external helical thread thereon, the internal thread and external thread being meshed together whereby relative rotation of one collar on the other varies the axial length of the collar assembly, said collars having flat radial annular end surfaces of substantial area engageable respectively with the operating mechanism and said one bearing structure to prevent axial play of the operating mechanism on the shaft.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
Specification