A Worm Processing Mechanism with Removable Small Bevel Gear Parts on the Horizontal Wall

Abstract

A demountable worm processing mechanism of a bevel pinion piece at a horizontal wall is used for processing a blank piece (1) into a worm; the processing mechanism comprises a blank piece bearing piece (2), a sleeve (3) with external threads, a driving sleeve (4) with internal threads and a rack (7), wherein the blank piece bearing piece (2) is used for bearing the blank piece (1); the upper end and the lower end of the blank piece bearing piece (2) are respectively and fixedly mounted inside the sleeve (3) with external threads relative to the axial direction of the sleeve (3) with external threads by an upper bearing (21) and a lower bearing (22); the sleeve (3) with external threads is matched with the driving sleeve (4) with internal threads by threads; the lower end of the driving sleeve (4) with internal threads is rotatably mounted on the rack (7) by a thrust bearing (47); a cavity (72) is formed inside the rack (7).

Description

technical field [0001] The present application relates to the field of worm machining, in particular to a worm machining mechanism in which a small bevel gear at a horizontal wall can be disassembled. Background technique [0002] The worm drive is composed of a worm and a worm gear, and the worm is generally the active part. Worms, like threads, can be divided into right-handed and left-handed. Worm drive has the following advantages: 1. Large transmission ratio and compact structure. The number of worm heads is represented by Z1 (generally Z1=1~4), and the number of worm gear teeth is represented by Z2. It can be seen from the transmission ratio formula I=Z2 / Z1 that when Z1=1, that is, the worm is single-headed, and the worm must turn Z2 to turn the worm wheel for one turn, so a large transmission ratio can be obtained. Generally, in power transmission, take The transmission ratio I=10-80; in the indexing mechanism, I can reach 1000. Such a large transmission, such as ...

AI Technical Summary

Problems solved by technology

4. The efficiency of worm transmission is low. It is generally believed that the efficiency of worm transmission is lower than that of gear transmission.

However, the shape processing and manufacturing of the worm gear tooth profile is troublesome, and it is difficult to ensure the accuracy of the processed tooth groove shape and position

[0003] In particular, in some specific application areas, such as soft materials (such as plastics) processing, traditional metal processing methods will be difficult to meet the requirements of reducing costs and improving processing speed and accuracy

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