Today, we will briefly introduce the reducer and coupling of the sand dryer.To reduce the speed of the dryer and increase the torque, a reducer must be used.Usually the reducer is used as an independent closed transmission device between the prime mover of the dryer and the working machine.When selecting a reducer, we must base on factors such as the technical parameters of the sand dryer, the performance of the power machine, the selection conditions, and the economy.Different types and varieties of reducers should be selected from many aspects such as quality, transmission efficiency, external dimensions, carrying capacity, and price.So what are the characteristics of the reducer of the sand dryer? Let's introduce it below.The reducer of a sand dryer generally has the following characteristics: 1. High transmission efficiency: two-stage greater than 93%; 2. The reducer must have light weight, small size, high carrying capacity, and long service life; 3. Easy to disassemble and inspect. Easy to install; 4. Smooth operation and low noise; 5. The gear is made of high-strength low-carbon alloy steel by carburizing and quenching, and the tooth surface hardness reaches HRC58-62. The gears are all geared with grinding technology, with high precision and good contact.Next, we will introduce the following couplings.Coupling, as the name implies, is a device that connects two shafts.It should be noted here that the two shafts connected by the coupling can only be separated after the sand dryer is stopped, and the two shafts must not be separated in the dryer working room.Under normal circumstances, we can divide the coupling into two types: flexible coupling and rigid coupling according to whether the coupling can maintain the connection function under the condition of relative displacement. www.wxxinyao.com