Overhead Crane Motors Introduction
The crane is one of the indispensable and important equipment in modern industrial production, and the overhead crane motors are one of the core components of the crane. When choosing overhead crane motors, understanding how to select the appropriate type has become a critical issue for engin 57 eers. This article will analyze the selection of mainstream overhead crane motors.
Overhead Crane Motors Classification
ZD3 Phase Asynchronous Motor
This series belongs to squirrel cage cone-rotor three-phase asynchronous motors equipped with an automatic braking device. They are commonly used in the lifting and material handling industry, as well as in specialized machinery that requires quick braking, frequent starts, and intermittent operation. However, these squirrel cage motors are not suitable for environments with flammable or explosive gases, molten metals, or strong acid-alkali vapors.
সুবিধা
- Large starting torque
- Reliable braking
- Compact structure and smooth work
- Small size, light weight, safe to use and easy to maintain
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BZDY/BZD Flameproof Brake 3-phase Asynchronous Motor
This series of overhead crane motors adopts the popular mechanism design.
The motor is made of explosion-proof type (ex motor), and its explosion-proof signs are ExdllB T4 Gb, ExdllC T4Gb, and ExdllB+H2 T4 Gb.
It is suitable for factories with llA, llB, llC, combustible gases or steam with temperature group T1~T4 that form an explosive mixture with air.
Not applicable to acetylene gas sites.
The protection level of this series of motors is IP54 and IP55.
Insulation grade F.
সুবিধা
- Compact structure, high efficiency and high reliability
- Low noise, light weight, easy installation and maintenance.
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BZDS Explosion-proof 3-phase Asynchronous Motor Dual Motor
This series of overhead crane motors adopts explosion-proof shell
Its explosion-proof mark is ExdllB T4 Gb
Suitable for factory use llA, llB
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ZDY Tapered Rotor 3-phase Asynchronous Motor
The motor is a closed structure.
The protection level is IP44 and IP54.
The cooling method is self-cooling.
The insulation grade is B and F
Can be used in conjunction with the reducer.
The start is smooth and the braking is safe.
It is used to drive lifting machinery, high-efficiency machinery and other transmission machinery that requires gentle braking.
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ZD Sdual Motor
This series has two speeds, fast and slow.
It is used in conjunction with electric hoists, machine tools that require two speeds, and lifting and transportation machinery.
There are two tapered rotor brake motors connected by an intermediate slow-speed drive device to achieve one of the two speeds in line with the motor.
Load capacity 0.5~32t
Insulation grade IP44, IP54
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Motor for Single Girder Overhead Crane
Its low-speed and high-torque drive can effectively improve the stability of the vehicle during operation.
The drive device has a compact structure and low noise.
The aluminum reducer body is light in weight, and its gears are precision-machined hard-toothed gears with low failure rates and easy maintenance.
The soft-start motor equipped with this series of products adopts electromagnetic braking, which has the advantages of low wear and adjustable brake pad clearance.
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Motor for Hoist
This motor is designed for use with European-style gourds.
The motor is a two-speed motor.
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YDE Rotor Brake 3-phase Asynchronous Motor
This motor is developed for the operation mechanism of various cranes, carts and trolleys.
It has soft-starting properties and does not require an external varistor or other additional devices. It can achieve a more ideal soft-starting effect by directly energizing it.
The motor itself comes with a plane friction brake, and the braking speed is adjustable.
The impact-free operation of the motor extends the service life of the motor and related mechanical transmission mechanisms.
The starting current of the motor is small, which is one-quarter to one-half of that of ordinary motors. It adapts to frequent starting and has a significant power-saving effect.
The motor has strong overload capacity, and even if it is stuck for 5 minutes, it will not burn down the motor.
When the motor is working, there is no axial movement, no carbon brush sliding contact point, and the motor failure rate is low.
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