Views: 0 Author: Site Editor Publish Time: 2023-04-28 Origin: Site
Parallel shaft gear transmission is a mechanical transmission that uses the teeth of two gears to mesh with each other to transmit power and motion. It has the characteristics of compact structure, high efficiency, and long life. Among all the mechanical transmissions, the gear transmission is widely used and the instantaneous transmission ratio is accurate, but the manufacturing cost is high and there is no overload protection function.
Methods for reducing noise in parallel shaft gear transmission:
In order to prevent the reducer from passing the factory test, one of the reasons is that the reducer has intermittent high noise; tested with the ND6 precision sound level meter, the low-noise reducer is 72.3Db (A), which meets the factory requirements; while the high-noise reducer Machine is 82.5dB (A), not up to the factory requirements. After repeated testing, analysis and improvement tests, it is concluded that all aspects of production must be comprehensively controlled in order to effectively reduce the noise of gear transmission.
1. Control the accuracy of the gear: the basic requirements of the gear accuracy: verified by practice, the gear accuracy must be controlled in GB10995-887~8, the linear speed is higher than 20m/s gear, the limit deviation of the tooth pitch, the radial runout tolerance of the ring gear, The tolerance of the tooth direction must be stable and reach level 7 precision. In the case of gears with grade 7 precision, the teeth should be chamfered, and the root bosses should be strictly prevented.
2. Control the quality of raw materials: High-quality raw materials are the prerequisite for the production of high-quality products. The company uses the largest amount of materials 40Cr and 45 steel to manufacture gears. Regardless of the route, raw materials must undergo strict chemical composition inspection, grain size determination, and purity evaluation after arriving at the factory. Its purpose is to adjust the heat treatment deformation in time and improve the quality in tooth profile processing.
Parallel shaft gear transmission refers to a device that directly transmits motion and power with the teeth of the main and driven gears. Among all mechanical transmissions, gear transmission is widely used and can be used to transmit motion and power between two shafts that are not far from each other. The characteristics of gear transmission are: stable gear transmission, precise transmission ratio, reliable operation, compact structure, high efficiency, long life, and wide range of power, speed and size used. For example, the transmitted power can range from very small to hundreds of thousands of kilowatts; the speed can reach up to 300m/s; the diameter of the gear can range from a few millimeters to more than 20 meters. However, special equipment is required to manufacture gears, and the meshing transmission will generate noise.
