Composition, meaning and examples of motor parameters are summarized!

The model of motor is a kind of code that is convenient for the departments of use, design, manufacturing, etc. to make business contact and simplify the description of product name, specification, type, etc. in technical documents.

Model and meaning of motor

Model composition and meaning of motor

It consists of four sections: motor type code, motor characteristic code, design serial number and excitation mode code.

1. Type code is the Chinese phonetic alphabet used to characterize various types of motors. For example: asynchronous motor Y synchronous motor T synchronous generator TF DC motor Z DC generator ZF

2. The characteristic code is to represent the performance, structure or purpose of the motor, and it is also represented by Chinese Pinyin letters. For example, the flameproof type is denoted by B, YT electromagnetic brake type YEJ frequency conversion speed regulation type YVP pole changing multi-speed type YD crane YZD is used on YB axial fan, etc.

3. Design serial number refers to the design sequence of motor products, which is represented by Arabic numerals.

For the products designed in the previous time, the design serial number is not marked, and the products derived from the series products are marked according to the design order. For example: Y2YB2

4. The codes of excitation modes are represented by letters, S represents the third harmonic, J represents the thyristor, and X represents the phase compound excitation. Such as:

Y2-160m1–8y: model, which means asynchronous motor;

2: Design serial number, "2" means the product with improved design based on the previous one; 60: Center height, which is the height from the center of the shaft to the plane of the base;

M1: machine frame length specification, and M is medium-sized, in which footnote "2" is the second specification of M-type iron core, and Type "2" is longer than Type "1" iron core.

8: Number of poles. "8" refers to an 8-pole motor. For example: Y630—October 1180

Y represents asynchronous motor; 60 means power of 630KW; 10 poles, stator core outer diameter 1180MM. Detailed explanation of motor model compilation method The motor models in China generally consist of the following four parts.

1- product code, 2 specification code, 3- special environment code and 4- supplementary code.

I. Product code

That is, the series and type code of the motor.

Generally, it is composed of one or several representative Chinese Pinyin prefixes in the Chinese characters of the series and names of motors.

For example: Y in Chinese characters of AC asynchronous motor and name; ; Ac motor t'; The alternator is TF; Single-phase asynchronous motor YDT for electric valves, etc.

In this part, sometimes, the international common letter codes that have been used for many years are adopted, such as AC single-phase capacitor motor, in which the code is YC, among which; C; It is the international general capacitance code.

When the letter code is followed by an Arabic digit, this digit indicates the design serial number or the number of modifications of this series of products, and sometimes it becomes algebra.

Second, the specification code

That is, the specification code of the motor. It includes: motor structure parameters, such as frame number, core specification, center height, flange end cover code, motor performance parameters (pole number, capacity, voltage, current, rotating speed, etc.). In this part, the items that can be expressed by specific numbers are given by Alibaba numbers, such as center height, rated voltage, etc. Or can't be expressed by specific numbers, it is expressed by letters or numbers.

For example, the length of the base is denoted by L\M\S (long, medium and short English letters), and the different cores of the same base are denoted by numbers such as 1, 2 and 3 (the larger the number, the longer the core).

The end code of the flange is represented by the international letter symbol FF (with a through hole in the flange) together with the numerical value of the diameter of the central base circle of the flange fixing hole. That is, the center height, the base length, the core length and the number of poles are used to express it.

1. Center height refers to the height from the axis of the motor to the bottom corner of the base; According to the difference of center height, motors can be divided into four types: large, medium, small and micro, of which the center height h is 45mm~71mm, which belongs to micro motors. H in 80mm~315mm belongs to small motor; H between 355 mm and 630 mm is a medium-sized motor; H above 630mm is a large motor.

2. The length of the base is expressed by international common letters:

S—— short base

M—— middle frame L—— long frame

3. The length of the core is represented by Arabic numerals 1, 2, 3, 4 ... respectively.

4. The number of poles is divided into 2, 4, 6 and 8 poles.

Three, special environment code has the following provisions:

The contents of special working environment that the motor can apply to are given. Expressed by a specific letter or letters plus numbers.

The special environment code "Gao" was originally G ship ("Hai"), H household "outside", W chemical industry to prevent "corrosion", F tropical belt, T humid belt, TH dry tropical belt, TA, if W is used, the motor can be used outdoors;

TH indicates that the motor can be used in hot and humid environment, etc. This part is only given when needed, that is to say, common motors do not have this part.

IV. Supplementary code only applies to motors with supplementary requirements.

Including content installation method, derivative serial number, etc., which are composed of letters (except for special symbols with uniform regulations, Chinese Pinyin prefix is generally used) or Arabic numerals.

Example: The meanings of the codes of the motor with product model YB2-132S-4H are:

Y: product type code, indicating asynchronous motor; B: Product feature code, indicating flameproof type;

2: Product design serial number, indicating the second design;

32: The height of the motor center indicates that the distance from the axis to the ground is 132mm;

S: motor base length, expressed as short base;

4: the number of poles, which means a 4-pole motor;

H: Special environment code, which means marine motor.

For example, V1 indicates that the motor should be installed vertically (with the main shaft facing down); P18 indicates that the motor is the 18th derivative product. The content represented by the code should be specified in the product standard.

For example, YD2-160M2-4THV3, where YD2 is the front part, 160M2-4 is the second part, TH is the third part and V3 is the fourth part.

YD2 indicates that the motor is a common multi-pole (D) speed, three different (Y) steps motor designed for the second time or the second generation product.

160 indicates that the base number of the motor is 160. For the motor with anchor, it is directly the height of its shaft center (in mm); For a bottomless motor, it means that the height between the base and the axis of the motor is 160mm, and the inner and outer diameters of the base with the foundation are the same.

M2 represents a medium-length machine base; The length number of the iron core used is No.2.

Said the number of 4 poles is 4 poles.

TH indicates that the motor can be used in hot and humid environment.

V3 indicates that the motor is installed vertically when in use, and the main shaft extends upwards.

Through the detailed introduction of the motor model above, I believe that after seeing the product model, we can know the type, characteristics, design serial number, specifications of the motor and the environment in which it is used.