Classification of elevator motors

Elevator motors and industrial motors, as there are different categories, from different angles can be divided into multiple. On the type of elevator motors, for example as follows:

A) Press the power points:

Elevator motor with AC and DC elevator motors two categories, as the drive load of the hoisting machine or the elevator drive motor, the motor type is, its power supply is also divided into AC and DC types.

AC elevator motors, essentially asynchronous (induction) motors, the rotor speed is also called the synchronous speed lower than the speed of rotating field in the stator.

AC lift motor stator is basically a three-phase power supply, but the voltage is divided into many; such as 220V, 380V, 420V, 440V, etc., most of 380V. AC power frequency is the frequency, but often 50Hz and 60Hz categories.

Two) divided by braking with brake and without brake categories.

AC motors are generally two types of elevator motors, motors without brake and often by a multi-pole windings to make the brake windings, while the DC lift motor braking is achieved by circuit control, AC lift motor with brake, brake Winding often supplied with direct current.

Three) divided by ventilation with fan and without fan categories.

Current common elevator motors, whether AC or DC's, basically with a dedicated fan, to achieve forced air, and heat-sensitive switch to control.

Old-fashioned elevator motors - generally without fans, and even that is an ordinary three-phase asynchronous electric four) by the structure have seat belt machine and without the base of the two categories: general DC lift motor with the base, and the base required magnetic properties, so the steel material, can be cast, you can also use welded steel plate bending, for AC lift motor, the imitation of America otis elevator motors, and imitation Mitsubishi elevator motors, the stator base circular structure is the use of the stator pieces, there are chassis (seat), fan cooled. Average volume than people, and imitation Swiss exchanges on Schindler Elevator motor utilizes a unique structure. Stator Stator using octagonal piece of AC lift motor rotor structure in accordance to points: cast aluminum structure and the structure of two copper bars. Shorted turn in the middle of another, especially in the ring and have asked two short rings.

After using the middle of the elevator motor short-circuit loop start running a brake three run some have achieved good performance. Intermediate traction motor short-circuit ring was originally a novel structure, which after the introduction of the elevator motor, and achieved satisfactory results.

Press the bearing structure points: Rolling bearing structures and types of sliding bearing type, generally DC elevator motors Bing rolling bearings. The AC motor with a sliding bearing elevator after the small bearing noise greatly thief, thereby reducing motor noise.

According to the structure of the motor windings; has a single winding, dual winding and multi-winding several categories.

Elevator operation is an advanced form of motor speed, in order to meet the performance requirements turtle ladder run. There is often dual, multi-winding structure, but from an efficiency perspective, there are also disadvantages. A single winding, the dipolar modulation scheme, the efficiency can be improved, energy-saving effect is better, but to pay attention to the sinusoidal magnetic field. Minimize harmonics.

Press versatility points: hunger and Y series induction motor is basically common structure of the elevator motor. And Y series induction motor and the basic structure of the elevator feet is not common motor types.