25
2023
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07
Introduction to Gear Processing Methods and Selection
Author:
Gear processing is very widespread in industrial production and is one of the important components for transmitting motion and power. The operational function, load capacity, service life, and operational precision of the product are all closely related to the quality of the gear itself. Therefore, the methods and choices for gear processing are very important. With the development of production technology, the requirements for the operational precision of mechanical products are becoming increasingly high, as well as the demands for power transmission and speed. In the gear processing production process, the control of fine deformation and process stability is relatively complex. After the blank is cast, isothermal annealing needs to be selected to achieve good processing functionality and a trend of uniform metallographic arrangement deformation; cylindrical gears can be processed using two methods: honing and grinding. Grinding has a lower cost, but the correction of the tooth shape is relatively weak. Requirements for gear processing: 1. Accuracy of motion transmission: To improve the precision of the equipment, the accuracy of motion transmission is very important for gears as key components. 2. Stability of transmission: To reduce processing losses in equipment, the stability of gear transmission must be improved. This requires changing the transmission ratio at the moment of scale transmission to avoid impacts, vibrations, and noise, which could even lead to gear failure. 3. Uniformity of load distribution: This is to prevent the lifespan of the gear from being affected by local wear on the tooth surface. It is required that the tooth surface has good contact with the gear during meshing to prevent stress concentration. 4. Transmission clearance: To provide space for storing lubricating oil, it is required that there is a certain gap between the gear and the non-working tooth surface during meshing. Currently, gear processing mainly uses cutting methods, but casting or rolling methods can also be employed. Casting has low precision and high surface roughness, while rolling has high productivity and good mechanical properties but still has low precision and is widely used. This article is sourced from the internet. If there are any issues, please contact us!
Gear processing is very widespread in industrial production and is one of the important components for transmitting motion and power. The operational function, load capacity, service life, and operational accuracy of the product are all closely related to the quality of the gear itself. Therefore, the processing methods and selection of gears are very important. With the development of production technology, the requirements for the operational accuracy of mechanical products are becoming increasingly high, as well as the demands for power transmission and speed.
The fine deformation and control of process stability during gear processing production are relatively chaotic. After casting the blank, it is necessary to choose isothermal heating to achieve good processing functionality and a trend of uniform metallographic arrangement deformation; cylindrical gears can be processed in two ways: honing and grinding. Grinding has a lower cost, but the correction of the tooth shape is relatively weak.
Gear processing requirements:
1. Accuracy of motion transmission: To improve the precision of the equipment, the accuracy of motion transmission is very important for gears as key components.
2. Stability of transmission: To reduce processing losses in equipment, it is necessary to improve the stability of gear transmission, which requires changing the transmission ratio at the moment of scale transmission to avoid impacts, vibrations, and noise, which could even lead to gear failure.
3. Uniformity of load distribution: This is to prevent the lifespan of the gear from being affected by local wear on the tooth surface. It is required that the tooth surface has good contact with the gear during meshing to prevent stress concentration.
4. Transmission backlash: To provide space for storing lubricating oil, it is required that there is a certain gap between the gear and the non-working tooth surface during meshing.
Currently, gear processing mainly uses cutting methods, but casting or rolling methods can also be employed. Casting has low precision and high surface roughness, while rolling has high production efficiency and good mechanical properties, but low precision, and is still widely used.
The source of this article is the internet. If there are any issues, please contact us!
Gear, processing, casting
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