GB1189923A - Appliance for Testing the Flanks of Gear Teeth - Google Patents

Abstract

1,189,923. Gauging toothed gears. W. FERD KLINGELNBERG SOHNE G.m.b.H. May 15, 1968 [Aug. 4, 1967], No. 23104/68. Addition to 1,189, 922. Heading G1M. The Parent Specification describes a testing apparatus comprising a slide 27 which when moved across a bed 10 by rotating a crank handle rotates a test gear 1 and at the same time a cylinder 25 mounted in bearing plates fixed to the bed. A shaft 20 carries a radially adjustable feeler head 17 and feeler 18 is keyed to rotate with the cylinder 25 but not move axially within the cylinder. In this Specification however the shaft 20 is made to be axially movable within the cylinder by arranging that an adjustable guide 94 moving laterally with the slide 27 engages a peg 97 in the bearing housing 96 thus giving the housing 96 and the shaft 20 axial movement. In Fig. 2 (not shown) the axial movement of 20 combined with its rotation gives a helical movement to the feeler mounted on the end of the shaft, and in Fig. 3 (not shown) the feeler head is mounted on one arm of a Z-shaped lever (100) pivoted to a stirrup (101), (102), fixed on the cylinder 25. The other arm of the Z-shaped lever is slotted and in the slot is a vertical bar (103) fixed by a bracket (104) to the end of the shaft 20. Rotation of the cylinder 25 and axial movement of the shaft combine to give the feeler 18 a spherical movement (105) about the apex point of the level gear being tested. In Fig. 4 (not shown) for testing spiral level gears, the cylinder 25 supports a stirrup (106) which in turn supports a slider (108) mounting a rotatably adjustable slotted disc (110). Pivoted across the slot is a bar (112) grinding a longitudinally slidable rod (113) mounting the feeler 18 at one end and provided with a roller (114) at its other end, the roller being pressed by a spring (115) against the axially movable collar ended shaft 20.