Puller

Details Puller Puller

1992-06-17

1993-07-06

Watson, Robert C.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

B23P 1904

Patent

active

052242544

ABSTRACT:
A puller for removing an object from a shaft including first and second collars movable relative to one another along an axis, at least two circumferentially spaced clamping jaws pivotally supported at one end to the first collar and having means at the other end for grasping the object, at least two circumferentially spaced links, each of the links being pivotally supported at one end to the second collar and pivotally supported at the other end to an associated clamping jaw, and a drive structure for moving the collars together along the axis away from the shaft. A threaded rod is fixed to the second collar, and a nut receives the threaded rod and is secured against axial movement toward the shaft relative to the first collar. The nut may be turned to move the threaded rod and second collar axially relative to the first collar. The clamping jaws may include bidirectional claws for selective use, with the collars and links being positionable to permit the axial spacing from the first collar to be selectively less than or greater than the axial spacing between the collars. An axially extending pusher is secured to one of the collars and has an end engageable with an end of the shaft. Either manual or hydraulic cylinder drives, or a combination thereof, biases the pusher relative to the collars for removal of a grasped object from an engaged shaft.

REFERENCES:
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patent: 4649615 (1987-03-01), Hundley
patent: 4706357 (1987-11-01), Ewing
SCHREM Solves your Pulling Problems brochure.
POSI LOCK Gear & Bearing Puller, 1991 catalog, p. 3.

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