Belt Conveyor Drive Motor Reducer

The driving device of a belt conveyor mainly consists of a motor, a reducer, and related connecting components

Composition And Function Of Belt Conveyor Drive Device

1、 Core Components

Power source (electric motor)

As the core of the driving device, Y-series cage motors (≤ 37kW) or wound motors (220-800kW) are usually used. The former has low cost and small size, while the latter is suitable for smooth starting of long-distance conveyors and power balance of multi drum drives.

The electric motor is connected to the reducer through a coupling or hydraulic coupling, and the hydraulic coupling can buffer the starting impact to prevent motor overload.

Transmission components

Reducer: It converts the high speed of the electric motor into the low speed required by the drum. Common types include cylindrical gear reducers (universal) and bevel gear reducers (for scenarios where the lateral size needs to be reduced).

Couplings: Transmit power and compensate for installation errors. Elastic couplings are commonly used in low-power (≤ 37kW) scenarios, and need to be used in conjunction with hydraulic couplings in high-power scenarios.

Drive drum

Drive drum: The conveyor belt is pulled by friction to move, and the surface is usually covered with a vulcanized rubber layer to enhance the friction coefficient (eua value) and reduce the risk of slipping.

Guiding drum: Adjust the running direction of the conveyor belt, often used in conjunction with the drive drum.

2、 Auxiliary Device

Safety protection components

Reverse stopper: prevents the conveyor belt from sliding in the opposite direction due to shutdown or slope, and the common type is belt type reverse stopper.

Brake: Used for emergency braking of inclined conveyors to ensure stability during shutdown.

Power Expansion Design

For high-capacity and long-distance scenarios, dual drum drive or multi drum drive can be used. Each drum can be equipped with an independent drive unit, which is connected to the motor and reducer through a coupling.

3、Typical Application Scenarios And Selection Criteria

Scene adaptation

Single drum drive: suitable for small and medium-sized conveyors, with a simple structure and low cost.

Multi drum drive: used for heavy-duty, long-distance transportation (such as mines and ports), dispersing traction force to reduce single point load.

Key parameters for selection

Power matching: Select the motor power and reducer transmission ratio based on the load, length, and speed of the conveyor belt.

Environmental adaptation: Fully enclosed reducers and explosion-proof motors are preferred for high humidity or dusty environments; Stainless steel components are required for corrosive environments.