Novel end-toothed disc and machining method

Abstract

The invention discloses a novel end-toothed disc and a machining method and belongs to the technical field of mechanical transmission. The novel end-toothed disc is formed by two half end-toothed discs which are engaged. Each half end-toothed disc is composed of a toothed disc and gear teeth. The gear teeth are uniformly distributed on the toothed disc circumferentially in a plane perpendicular tothe center axis of each half end-toothed disc. The tooth length direction of each gear tooth is an extending epicycloid. The tooth thickness of the gear tooth is gradually decreased from outer wall to inner wall. The gear tooth distribution directions of the two half end-toothed discs are arranged in mirror image. The toothed portion of the gear tooth is the extending epicycloid, and the depth oftooth is kept unchanged from outer wall to inner wall. The novel end-toothed disc is compact in structure, has an automatic centering function and is machined by a taper milling cutter without a special machine tool or a special tool. The novel end-toothed disc is simple in machining method, low in machining cost and high in machining efficiency.

Description

technical field [0001] The invention belongs to the technical field of mechanical transmission, and specifically relates to a novel end sprocket and a processing method. Background technique [0002] End sprockets, also known as couplings, can firmly connect the driving shaft and the driven shaft in different mechanisms and rotate together, and are used to transmit motion and torque mechanical components. It usually consists of two halves, which are respectively connected to the driving shaft and the driven shaft, and then the two halves of the chainring are connected in some way. [0003] The end gear is one of the commonly used couplings. The existing cycloid tooth end gear adopts the structure of shrinking teeth, and the tooth height gradually shrinks from the outer wall to the inner wall. It needs to be used on a special machine tool such as Figure 8 The end disc-shaped milling cutter shown in the figure is processed. It is composed of an outer cutter body 9 and an inne...

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Problems solved by technology

[0003] The end gear is one of the commonly used couplings. The existing cycloid tooth end gear adopts the structure of shrinking teeth, and the tooth height gradually shrinks from the outer wall to the inner wall. It needs to be used on a special machine tool such as Figure 8 The end disc-shaped milling cutter shown in the figure is processed. It is composed of an outer cutter body 9 and an inner cutter body 10. It has a complex structure. At the same time, it is necessary to change the root angle of the gear teeth to avoid the problem of cutter interference, and the processing is relatively complicated. , higher processing cost

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