Knowledge

  • Selection Method for DC Geared Motors

    Selection Method for DC Geared Motors

    Selecting a DC geared motor is a systematic project that requires comprehensive consideration of factors such as load, speed, and installation. The following are detailed selection steps and methods, with the core principle being to start with the end in mind and work backward from the load requ...
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  • Why does the shaft or rotor of an electric motor turn blue?

    Why does the shaft or rotor of an electric motor turn blue?

    Most readers are familiar with the term bluing, which is a process that involves heating steel or steel parts to a suitable temperature in air, steam, or chemicals to form a blue or black oxide film on their surface. For motor components, the blueing process is often not due to a special blueing ...
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  • Improve motor starting difficulties by adjusting load size.

    Improve motor starting difficulties by adjusting load size.

    A helpful netizen shared a case: A 37kW motor, using a star-delta reduced-voltage starter to drive a water pump, failed to start when the water supply was fully open, and the pump could not operate. Later, the water supply was turned off, and as the motor started, the water supply was gradually o...
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  • The structure and working principle of an automatic rotating table

    The structure and working principle of an automatic rotating table

    This is a detailed explanation of the structure and working principle of an automatic rotating table. An automatic rotating table, also known as an electric turntable or automatic turntable, functions by rotating at a set speed and direction under the drive of a motor, providing convenience for s...
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  • The types, usage, and maintenance of coffee bean roasters

    The types, usage, and maintenance of coffee bean roasters

    Okay, this is a very practical question. Understanding the types, usage, and maintenance of coffee bean roasters is key to ensuring roasting quality and machine lifespan. Part 1: Types of Coffee Bean Roasters They can be mainly classified according to their working principle and scale of use. Cla...
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  • Motor inspection tips

    Motor inspection tips

    We all know that motors are electromagnetic devices that realize the conversion or transmission of electric energy according to the law of electromagnetic induction. Motors are used in many fields. Its main function is to convert mechanical energy into electrical energy. At present, the most com...
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  • The motors of various car manufacturers are different. What are the differences between permanent magnet synchronous motors and AC asynchronous motors? What are their advantages and disadvantages?

    The motors of various car manufacturers are different. What are the differences between permanent magnet synchronous motors and AC asynchronous motors? What are their advantages and disadvantages?

    According to the 2021 global new energy brand sales data released by the CleanTechnica website: In 2021, the cumulative sales of new energy vehicles worldwide reached nearly 6.5 million , an increase of 108% over the same period last year . Tesla is far ahead with nearly one million units sol...
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  • About multifunctional electric forklift

    About multifunctional electric forklift

    An electric shovel is a kind of earthwork construction machinery widely used in highway, railway, building, hydropower, port, mine and other construction projects. It is mainly used for shoveling bulk materials such as soil, sand, lime, coal, etc., and can also be used for light shoveling and exc...
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  • Analysis of electric vehicle motor types: AC asynchronous and permanent magnet synchronous

    Analysis of electric vehicle motor types: AC asynchronous and permanent magnet synchronous

    The role of motors in electric vehicles When discussing why electric vehicles choose different motor types, we first need to understand the core position of motors in electric vehicles. As the driving system of electric vehicles, the type and performance of motors directly determine the drivin...
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  • The benefits of keeping 6 terminals for three-phase motors

    The benefits of keeping 6 terminals for three-phase motors

    During an analysis and discussion on the connection method of three-phase motor windings, a netizen raised a question about the number of winding output terminals. For most three-phase motor windings, we can use different connection methods according to the line voltage, namely delta connection a...
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  • Air gap size of asynchronous motor stator and rotor

    Air gap size of asynchronous motor stator and rotor

    The stator-rotor air gap is a necessary parameter for motor products, and different series of products have different requirements for air gap. The air gap of asynchronous motors is relatively small, and the size of the air gap has a greater impact on the no-load current of the motor. In order to...
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  • What problems are often encountered when using a frequency converter to power a motor?

    What problems are often encountered when using a frequency converter to power a motor?

    A frequency converter is a device that converts industrial frequency power into other frequency power. The power frequency in our country is 50Hz. In the field of motors, in order to change the speed of the motor or other performance changes, many motors are powered by frequency converters. The f...
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