Design principles of gear transmission

The role of gear transmission on mechanical equipment is very important, but sometimes there will be problems with gear transmission, which may be mainly due to tooth surface wear, plastic deformation, etc. Relevant personnel need to design gear transmission from various aspects. To consider, then what are the corresponding design principles? This article introduces the design principles of gear transmission. Let's learn more about it. 1. Closed gear transmission It is known from practice that in closed gear transmission, the contact fatigue strength of tooth surface is usually guaranteed. However, for gears with high tooth surface hardness and low tooth core strength or gears with relatively brittle materials, it is usually necessary to ensure the bending fatigue strength of the tooth root. If both gears have hard tooth surfaces and the tooth surface hardness is the same, it depends on the specific situation. Transmissions with high power, such as closed gear transmissions with input power exceeding 75kW, generate large amounts of heat, which may easily lead to poor lubrication and gear tooth gluing damage. In order to control the temperature rise, the heat dissipation capacity should also be calculated. 2. Open gear transmission Gear transmission Open (semi-open) gear transmission should be calculated according to the two criteria of ensuring the anti-wear ability of the tooth surface and the anti-fracture ability of the tooth root. The calculation method is not perfect so far, so the split-type (semi-open) gear transmission is currently only designed to ensure the bending fatigue strength of the tooth root. In order to prolong the life of the open (half-open) gear transmission, the obtained module may be appropriately increased according to specific needs. The design principles of gear transmission are described here. Different types of gear transmission have different things to consider when driving, so users also need to consider more and make corresponding improvements according to their own needs. If If you want to know other aspects of knowledge, you can pay attention to our news.