| 摘要 |
Method and device for verifying and measuring a double-toothing sprocket wheel (14) to identify the respective positions of the teeth (24) of the two toothed rings (27a, 27b) thereof, in which method use is made of a pair of contacting elements, a first lower (23a) and a second upper (23b) contacting elements which lie in different parallel planes, the contacting elements cooperating respectively with one groove (25) of the first ring (27a) and one groove (25) of the second ring (27b), in which method a first contacting element (23a) is constrained to lie in a position which is fixed radially with respect to the longitudinal axis (17) of the sprocket wheel (14), and the second contacting element (23b) is progressively displaced in a radial direction with respect to the longitudinal axis (17) of the sprocket wheel (14) until it reaches a position of maximum possible advance, the position of maximum advance being compared with a reference position to establish a condition of alignment between the terminal ends (123) of the two contacting elements (23a, 23b).
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