Gear transmission apparatus using flexible belts as engagement medium

Abstract

The present invention relates to a gear transmission mechanism using flexible belt as meshing medium. In order to overcome the defects of existent gear transmission mechanisms, said invention provides its technical scheme, and said technical scheme is characterized by that a movable and closed flexible belt is cover-mounted on the exterior of gear tooth of one gear, and two sides of the gear on which the flexible belt is cover-mounted are equipped with stopper ring respectively, and said stopper ring is connected with said gear by means of screw. Said invention can reduce friction of tooth face, reduce noise, can be lubricated by oil, also can be lubricated by water, and can utilize elasticity of flexible belt to automatically regulate error of form and position.

Description

1. Technical field [0001] The invention relates to a gear transmission mechanism, in particular to a gear transmission mechanism with a flexible belt as the meshing medium. 2. Background technology [0002] Gear is a basic part of mechanical transmission widely used in industry, agriculture, national defense, science and technology and other economic sectors. In the current gear industry, from the perspective of materials, gears are divided into two categories: metal gears and non-metallic gears. The metal material gear pair belongs to the "high modulus (metal) - high modulus (metal)" high pair, which has the outstanding advantages of high speed and large load capacity, but there are vibrations and noises, so it can only be lubricated with oil lubricants , so it is easy to pollute the environment; and hardened gears need to be quenched and ground, and the process is complicated; the required machining accuracy is high and the production cost is high. The non-metallic gear ...

AI Technical Summary

Problems solved by technology

[0003] The Chinese patent "A Self-lubricating Gear" (Patent No.: ZL00210874.7) proposes a gear composed of a metal gear frame and a polymer oil-containing alloy material cladding compounded or pasted on its two sides. Good lubricating performance and other advantages, but this gear has the following disadvantages: 1. Although the transmission pair has self-lubricating function, it belongs to the meshing transmission of a pair of "non-metal-non-metal" gear transmission pairs. Compared with the usual fluid lubricated metal gear Transmission, which has low load capacity and low meshing efficiency

2. It is easy to peel off between the skeleton and the cladding, which affects the life of the gear

3. Two sets of molds need to be manufactured for the compounding of skeleton and cladding, and different molds need to be manufactured for gears with different modulus and number of teeth, which makes the processing and manufacturing cost high, and it is almost impossible to see large and medium-sized gears produced in single-piece small batches possibility of application

4. The gear frame and cladding are compounded by resin interlayers. Therefore, after the gear fails, the tooth body is not easy to reuse. If the cost is lost, it will be a waste

However, the combination of flexible material and worm gear tooth surface has similar disadvantages to the aforementioned patent "a self-lubricating gear", and does not involve the problem of gear pair transmission

Images