The reducer is a kind of independent component which is composed of gear transmission, worm drive and gear-worm drive enclosed in a rigid shell. It is often used as a deceleration transmission between the original and the working machine.

The reducer is a separate part of the deceleration between the prime mover and the working machine. It is usually made of a closed drive, a drive and a shaft, a bearing, etc. Reducer in a cast iron or welded box, called a reducer or a gearbox The

Many types of reducer, such as involute cylindrical gear reducer, double circular cylindrical gear reducer, cycloid reducer, NGW planetary gear reducer, three-ring reducer, circular cylindrical worm reducer. The design should first use the standard reducer, easy to design, manufacture, repair and replacement.

When the standard reducer is not available, the design of special reducer, in the design, should consider the main problems are: transmission type, transmission layout, transmission parameter design, transmission parts, support and box design, Lubrication and sealing design and cooling. You can also optimize your design to improve design quality.

As a result of the use of hardened gears and design and manufacturing technology continues to improve, passing the same power and reduction ratio, the size of the reducer is reduced, Reducer so the heat problem is more and more prominent, should refer to the gear thermal power calculation technical documents.

Many types of reducer, according to the type of transmission can be divided into gear reducer, worm reducer and planetary gear reducer and their combined with the reducer. The simplest and most commonly used reducer type is a single stage cylindrical gear reducer.

The gears can be made into straight teeth, helical and phonetic teeth. Spur gears for low speed (v 鈮 8m / s) load less drive; helical gears for higher speed drives; Reducer Herringbone gears for heavy loads. We surveyed the reducer is a single pole spur gear reducer, the gear ratio of the transmission i 鈮 8 ~ 10. The gearbox of the gear unit is usually made of cast iron (for the use of lightweight, we painted the reducer of the box material for the cast aluminum). Bearings generally use rolling bearings, heavy load or special high-speed use of sliding bearings.

Single-stage cylindrical gear reducer structure has three parts

1. Gear, Reducer shaft and bearing combination;

2. Box

3. Reducer accessories.