It is well known that the slurry pump has a coupling direct drive and a belt drive, and the belt drive has a variety of transmission modes.
1: Direct drive
Reliable operation, low failure rate, no loss of rotation, high efficiency but fixed rotation speed, it is not suitable to work accurately at the required operating point.
2: Belt drive (including CR, CV, ZV)
It is easy to change the working parameters of the pump, with a wide range of pump selection, easy to achieve the required operating parameters but easy to lose rotation, low transmission efficiency, easy damage to the belt, high operating cost, and poor reliability.
The two transmission modes have their own advantages and disadvantages. When choosing which transmission mode, in addition to the speed of the pump and the speed of the configured motor, it is also necessary to consider whether there are special requirements on site.
Due to the influence of factors such as space arrangement, there are different belt drive modes.
(1): CR transmission:
The motor is on the right side of the pump as viewed from the pump inlet.
(2): CV transmission
Also known as a back-up drive. The motor is fixed above the bracket attached to the pump shaft. This transmission method saves floor space. The pump is on the same side as the shaft end of the motor.
(3): ZV transmission: also known as tailstock belt transmission. As the name suggests, the motor is attached to the rack at the rear of the pump, with the belt between the pump and the motor.
(1): BD drive: belt drive for vertical slurry pump.
According to the different technical parameters, different transmission modes are determined. Within the specified flow and head range, determine the speed of the pump. In general, when the speed of the pump is the same as the speed of the motor, we use direct drive.
The direct drive is a direct drive, which reduces the equipment accessories connected by the intermediate belt, and has the following characteristics:
(1): The loss of intermediate transmission energy is reduced, and the efficiency is high;
(2): Simple operation and strong reliability;
(3): Reduce the intermediate links of equipment, thereby reducing costs and saving resources;
(4): When the speed of the pump is inconsistent with the speed of the motor, we generally use the belt drive.
The belt drive is also suitable for occasions where the center distance between the two axles is large, and has the following characteristics:
(1): The transmission is stable;
(2): When overloaded, the belt will slip on the pulley, which can prevent the damage of weak parts and play a safety protection role;
