Two-stage interference coupling components for engine

Abstract

The two-stage interference coupling assembly (1) for an engine relates to a coupling assembly used between an output shaft of an engine and its supporting equipment. The taper hole (8) at one end of the taper sleeve (2) is assembled on the outer tapered surface (12) of the wedge block assembly (11), and the inner thread (10) at the other end of the taper sleeve (2) is connected with the outer thread of the working claw (4). The segments (20) are screwed together; the wedge blocks (3) have side gaps (15) between them; the flange (18) at one end of the working claw (4) and the connecting claw (17) pass through the optical sleeve section (19) and The external thread segments (20) are connected; the hexagonal wrench (6) is perpendicular to the taper sleeve (7), and the small end surface (13) protrudes outward from the small end surface (5) of the tapered hole. The coupling assembly (1) is quick to assemble and disassemble, and has low cost.

Description

Technical field: [0001] The two-stage interference coupling assembly for the engine of the invention relates to the coupling assembly used between the output shaft of the engine and its matching tools. Background technique: [0002] During the engine experiment, the connecting shaft is connected with the test equipment, and the connecting shaft is fixed on the output shaft of the engine. The fixing methods mainly include the following three types: [0003] 1. The output shaft of the engine is cylindrical, and the inner hole of the coupling is an interference connection, and is supplemented by a key for positioning; [0004] 2. The output shaft of the engine has an external thread structure, and the shaft coupling is tightly connected with the external thread of the output shaft through the internal thread, and is pressed by the end surface of the shaft. [0005] 3. The output shaft of the engine is a conical structure, and the conical hole of the same taper is machined into...

AI Technical Summary

Problems solved by technology

[0006] The above methods can transmit large torque and have good reliability. The disadvantage is that different output shafts need to manufacture different coupling parts, and the coupling parts are parts that need to be used repeatedly. When disassembling and assembling each time, It is possible to scratch the matching surface of the engine output shaft; repeated use of the shaft will reduce the coupling strength and slip due to deformation, which will cause damage to the output shaft and connecting parts, and will cause distortion of test data; the output shaft has various forms Therefore, the manufacturer needs to prepare a large number of couplings of various specifications and models, which increases the manufacturing cost of the entire product and the inconvenience of experimental operations.

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