What Is a Compressor Pulley?

The rotor compressor is driven by an engine or an electric motor (mostly driven by an electric motor), and the other rotor (also known as a female rotor or a concave rotor) is driven by the main rotor through an oil film formed by oil injection, or the main rotor end and the concave rotor End of the synchronous gear drive.

Rolling-rotor compressors are now widely used in household appliances refrigerators and air conditioners, and large and medium-sized rolling-rotor compressors are also used in cold storage. Analyze its performance.

(1). Fewer parts and simple structure.

(2). Fewer wearing parts and reliable operation.

(3). No suction valve,

The working cycle can be divided into

Rotary compressors are divided into two categories, one is fixed-blade type and the other is sliding-blade type. The rotor of a fixed-plate rotary compressor is mounted on an eccentric shaft, and a volume change occurs during rotation, and the cylinder is separated by a fixed plate. This compressor must be provided with a check valve on the exhaust or suction line to prevent refrigerant from flowing back from the condenser to the evaporator during shutdown. There is also a layer that does not allow refrigerant to enter the compressor in a liquid state, because its return line directly enters the compression chamber. Rotary vane compressors are very similar to vane pumps. No seal ring, rely on centrifugal force and lubricant, and rotor pair

Make volume change achieve compression purpose. This compressor's operating state often fails due to refrigerant leakage. The schematic clutch of this compressor is used to turn on or off the drive system. The air-conditioning compressor of the car is driven by the engine via a belt. As soon as the engine is running, the pulley turns. In order to control the clutch clutch, a clutch is installed between the pulley and the compressor shaft. When the air conditioner compressor is required to work, the clutch is engaged, and when it is not required to operate, the clutch is disengaged. Such clutches are mostly electromagnetic clutches. It consists of three main components, one is a pulley mounted on a bearing, the second is a drive disc that is splined to the compressor's main shaft, and the third is a non-rotating electrical winding or coil. When current passes through the clutch winding, it generates The strong magnetic field combines the compressor drive disk with the freely rotating pulley to drive the compressor main shaft to rotate. Once the air-conditioning controller cuts off the current, the magnetic field disappears, and the drive disc and the pulley are disengaged by the action of the spring, and the compressor stops working. The drive disk on the left and the main shaft of the compressor are splined. Several spring jaws are fixed on the drive disk. The other end of the spring is fixed on the friction plate. The winding is fixed on the compressor housing. The pulley is mounted on the bearing. Free rotation, when the current is turned on, the friction plate and the pulley become one, and the compressor works; when the power is off, the spring separates the friction plate and the pulley, and the compressor stops working. ^[2]