Phase inspection device for pulley assembly

Abstract

The invention discloses a phase inspection device for belt pulley assembly, which comprises: a cylindrical sleeve with a cylindrical hole, the cylindrical hole is slidingly matched with the outer peripheral surface of the central shaft sleeve, and a convex arc edge is extended from one side of the end of the cylindrical sleeve , the radius of the convex arc edge is consistent with the radius of the wheel disc, the radial direction of the convex arc edge is provided with a seam gap, the side wall of the cylindrical sleeve is provided with a screw hole, the center line of the screw hole and the center line of the seam gap are in line with the The center line of the cylindrical hole is in the same plane, and the height of the screw hole and the keyway is consistent when the cylindrical sleeve is set on the outer peripheral surface of the central shaft sleeve; and the alignment screw has a conical tail, and the alignment screw matches the thread of the screw hole, and the phase When inspecting, set the cylindrical sleeve on the outer peripheral surface of the central shaft sleeve, screw the alignment screw so that the conical tail is embedded in the keyway, and visually check whether the gap of the seam is aligned with the zero scale line. The phase checking device has a simple and reasonable structure and is convenient to use.

Description

technical field [0001] The invention relates to the field of mechanical tools, in particular to a phase inspection device for assembling pulleys. Background technique [0002] The pulley assembly phase inspection device is a common device for engine assembly. Generally, the pulley is composed of a central shaft sleeve, an intermediate rubber body, and a wheel disc. The central shaft sleeve has a keyway, and the wheel disc has a "0" engraved line. When the engine is assembled and debugged, the fuel injection advance angle is usually adjusted according to the "0" scale of the pulley. The alignment between the center of the keyway and the "0" engraved line on the wheel is related to the accuracy of adjusting and recording the fuel injection advance angle, and ultimately related to the engine's factory performance and emission indicators. At present, expensive electrical measuring devices are generally used to accurately observe the alignment degree between the center of the k...

AI Technical Summary

Problems solved by technology

At present, expensive electrical measuring devices are generally used to accurately observe the alignment degree between the center of the keyway and the "0" engraved line of the wheel on the assembly line and visually measure the degree of deviation, which is costly.

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