Why Choose Us
Customization
Transform your industrial machinery with our cutting-edge motor customization solutions! Boost efficiency, optimize performance, and maximize output with tailored engineering upgrades designed to meet your unique production needs.
Quality
"Elevate your expectations with our premium motor quality! Engineered to exceed industry standards, our motors are crafted with precision and care to deliver unmatched performance and durability. Built to withstand the toughest conditions, our motors ensure reliable operation day in and day out, keeping your equipment running smoothly and efficiently. Experience the difference with our commitment to excellence – choose superior motor quality for your applications and drive with confidence."
Achievement
MCM sales performance in the engineering industry is truly commendable, showcasing remarkable resilience, strategic vision, and consistent growth amidst challenging market conditions.
Service
Professional technical personnel provide consultation before and during sales, and 24-hour after-sales service support.
What is Mining Electric Motor
Mining electric motor is an electric motor used in the mining industry, typically used to drive and operate mining equipment and machinery. These electric motors play a vital role in mining operations and they need to be efficient, durable and reliable to handle harsh working environments and high-intensity usage conditions.
Related Product
MILL DC Motor is a high-quality DC motor (center height H315-1000). It absorbs new technologies and new processes related to DC motors at home and abroad, and is optimized and designed using advanced computer design software.
Rolling Mill Motor is an electric motor used in rolling mill equipment, mainly used in metal rolling and processing processes. This kind of motor is usually designed to drive rolling mill equipment, such as steel plants, non-ferrous metal plants, etc., to produce steel, aluminum and other metal products.
Medium DC Motor is a common DC motor commonly used in a variety of industrial and commercial applications. They consist of a rotating electronic magnet (called a rotor) and a fixed electromagnet (called a stator), which uses a DC power source to generate electromagnetic force to drive the rotor to rotate.
Large Scale Rolling Mill DC Motor
Large Scale rolling mill DC Motor is a common equipment in the industrial field. It is mainly used to drive steel rolling machinery and equipment to ensure the efficient operation of the production line. This DC motor usually consists of several main parts: armature, permanent magnets, commutator, brushes and casing. The armature is the rotating part of the motor, and the permanent magnets provide the magnetic field to produce torque. The commutator is used to change the direction of the current and the brushes are responsible for providing the current on the armature. The shell serves as protection and support.
Marine propulsion Motor is an important part of ships, providing the necessary power for them to move through the water. These motors are highly advanced and operate reliably and efficiently even in the most challenging conditions.
Our company provides Marine propulsion Motor for the domestic shipbuilding industry, which is used on ships or ship test benches. The motor meets the requirements of classification society specifications and meets the requirements of IEC60034, IEC60038, EN50112 and other relevant marine motor standards.
Large Size DC Motor is a powerful DC motor commonly used in applications requiring high power output and precise control. This type of motor is made up of many different components, including the armature, field, commutator, and brushes. They are typically designed for use in large industrial equipment, machinery, electric vehicles and other systems that require high torque and reliability.
The Precise Rolling Mill Motor is a high-precision motor designed specifically for rolling mill applications. This type of motor is often used in the metal processing industry, such as in the rolling process of steel, aluminum and other metal materials. It has precise control capabilities and can provide stable rotation speed and torque output to ensure product quality and production efficiency.
Highspeed Wire Rolling Mill Motor
High speed Wire Rolling Mill Motor is a motor specially designed for high speed wire rolling mills, usually used in production lines in the metal processing industry. This motor is designed to drive rolling mill equipment to process metal blanks into the desired wire shape. These motors usually need to have high efficiency, high reliability and high torque output to ensure stable operation and high output of the production line.
Section rolling mill motor is an electric motor used to drive rolling mills, typically used in the rolling process in the metalworking industry. Such electric motors typically require high efficiency, high reliability and high torque output to ensure smooth operation of the rolling mill. They are usually designed to be durable and able to withstand high-load working environments such as high temperatures and pressures.
Advantages of Mining Motor
Excellent explosion-proof performance
Mining motors usually adopt explosion-proof design, which can ensure the safe operation in the mine environment containing flammable gas or dust, and effectively prevent the explosion accident caused by short circuit and high temperature inside the motor.
High efficiency and energy saving
The design of mining motors focuses on improving operational efficiency and reducing energy loss. By optimizing the electromagnetic design and adopting new materials and technologies, it reduces the energy loss of the motor during operation and improves the energy conversion efficiency.
Strong heat dissipation performance
Mining motors have superior heat dissipation performance, which can effectively dissipate the heat generated inside the generator and keep the motor working within the normal operating temperature range. This is essential to improve the service life and performance of the motor.
Good environmental adaptability
Mining motors can adapt to a variety of harsh mining environments, such as high temperature, high humidity, dusty and so on. The motor shell adopts a sealed design, which can effectively prevent the external environment from causing damage to the inside of the motor.
High protection level
Mining motors have a high level of protection, which prevents external solids from entering the motor, and prevents water and other liquids from entering the motor and causing damage. This ensures the safe operation of the motor in harsh environments.
Easy to maintain and repair
Mining motors are usually designed and constructed with ease of maintenance and servicing in mind. The modular design of the internal parts of the motor makes it easier and faster to replace and repair, reducing maintenance costs and time.
Impact Resistance Test Methods for Mining Motors
In order to evaluate the shock resistance of mining motors, the following test methods can be used:
Simulated shock test
Simulated vibration test is a common test method for shock resistance of mining motors. The test is conducted by assembling the motor on a vibration table to simulate the working condition of the motor in a vibration environment. Different types of vibration signals, such as sine wave and random vibration, can be used for the test, so as to carry out multi-dimensional impact resistance test on the motor.
Impact test
Impact test is another test method to detect the impact resistance of mining motors. The test tests the impact resistance of the motor by applying impact loads in different directions. Two different test methods, direct impact and indirect impact, can be used for testing.
Acceleration sensor test
Acceleration sensor test is a common auxiliary means of impact resistance test for mining motors. By installing acceleration sensors, the method monitors the vibration of the motor in real time and records its vibration frequency, vibration amplitude, acceleration and other parameters, so as to assess the impact resistance of the motor.
Maintenance of Mining Motors
Check the working environment
See if there is any water leakage or dripping around the motor.
Whether there are obstacles outside the motor that affect its ventilation and heat dissipation environment, mainly fan end caps and fan blades. In addition, whether the motor exterior is too dirty need to clean up, once found that the problem can be dealt with in a timely manner, otherwise it will cause the motor insulation is low and burned out.
In the work of attention to view the size and change of the record motor operating current.
Listen carefully to the sound of the motor running whether there is anomaly
If you always listen, you can not only find the motor and its trailing equipment of the bad vibration, but also can judge the internal bearing oil left how much, so as to determine whether you need to add bearing oil, or replacement of new bearings, etc.. Avoid the motor bearing lack of oil dry grinding and blocking, go out of round, sweep the chamber burned.
Check the temperature
In the case of good bearing condition, usually the temperature at the middle winding end will be higher than the temperature at both ends. If it is the temperature at the bearings at both ends that is high, the bearings need to be checked according to the sound condition of the bearings that has been measured. If it is the overall temperature of the motor that is high, it is necessary to correlate the operating current, check the equipment, load, and ventilation of the motor, and deal with it accordingly.
Types of Mining Motors
According to the power classification
• High and low voltage motors: Low voltage motors are usually rated at 380V, while high voltage motors are rated at 3,300V or 6,600V.
According to the structure of the classification
• Asynchronous motor: Is currently the most widely used in the mining industry a motor. Asynchronous motors are generally modeled as Y/YL/YC/YCT, etc., where Y means three-phase asynchronous motor, YL means single-phase asynchronous motor, YC means compact single-phase asynchronous motor, and YCT means single-phase asynchronous motor with capacitor.
• Synchronous motor: It is suitable for the occasion of large power. Synchronous motor models are YJ/YVP/YR, etc., of which YJ means AC synchronous motor, YVP means frequency conversion synchronous motor, and YR means rotor type synchronous motor.
• DC motor: Suitable for applications that require precise speed control. DC motors are modeled as Z/Z4/YZ, etc., where Z means DC generator, Z4 means high power DC motor, and YZ means small and medium power DC motor.
Classified according to the use
• Roadheader motor: Used in mining excavation machinery.
• Traction motors: Used in mining traction equipment, such as mining locomotives.
• Lifting motor: Used in mining lifting and lifting equipment.
• Water pump motor: Used for mine water pumps and other drainage equipment.
According to the characteristics of classification
• Explosion-proof motors: Mainly used in coal mines and other flammable and explosive places to ensure safe operation in hazardous environments.
• Insulation level and protection level: Reflects the electrical and mechanical safety performance of the motor, such as the protection level of the minimum requirements for the wiring chamber for IP54, the motor body for IP44, the higher requirements for IP55.
Technical Requirements of Mining Motors
The environment of mine is humid, the relative humidity can reach 98%, there are water showers, equipment lubrication and cooling grease may intrude into the motor, so that the winding accumulates dirt and moisture, so the motor is required to have good sealing. Therefore, the motor is required to be well sealed. The minimum protection level is IP54 for the wiring chamber, IP44 for the motor body, and IP55 for the higher requirement.
The motor needs to move with the mining equipment and be subjected to vibration due to the vibration of the mining machinery during operation. Under the effect of roof pressure, the motor may be exposed to the danger of falling coal and rock, and may be smashed or touched. Therefore, the motor casing and exposed parts should be able to withstand the specified impact force.
Most of the mines have the danger of gas and coal dust explosion, so the motors for mining machinery should be of explosion-proof type.
Most of the mining machines are non-limiting loads with large and unstable resisting moments, and the motors are subject to complicated working conditions such as frequent starting, pointing, blocking, and overloading, etc. The motors are usually started at full voltage, and the motor should be able to withstand the specified impact force. Generally, the motor is full-voltage starting, and its main characteristic parameters are shown in the table on the right. The working system of mining motors is usually specified as S1 (continuous working system), but often need to adapt to the frequent starting, overload, no-load, the number of hours of starting, the number of consecutive points, etc., the working system can also be set as S1 or S4 (including intermittent cycle of starting working system) S1 or S6 (continuous cycle of working system). For motors used in loading machines, the short-time operation system is mostly S2. In order to make the motor have a large overload capacity, a large temperature rise margin is left in the general design of the motor, and the insulation level is downgraded for use to improve the reliability of the motor. In order to solve the problem of heat dissipation, the motors used in mining machines are mostly water-cooled in the shell. In order to effectively protect the windings from overheating, mining motors are equipped with thermal protection elements embedded in the winding ends, as well as a number of protection devices such as water pressure relays and bearing overheating prevention.
Selection of mining motors should usually follow the following four principles:
Meet the requirements of the working conditions of the driven equipment, such as the nature of the load, operating system, torque, starting, acceleration, system, overload capacity and speed regulation. Such as water pumps, air compressors, exhaust fans and other loads are stable, the motor for the S1 working system; large-capacity air compressors are mostly synchronous motors, working system, although the provisions of the S1, but also to meet the requirements of frequent starting, blocking overload, etc.; cutting motors for roadheading machines require a higher maximum torque, and have a S1 or S4 working system; rock loader motors are mostly short-term provisions of the S2 working system. Therefore, according to the specific conditions of the mining machinery must be selected to meet the needs of the special motor.
In accordance with the principle of technical and economic rationality, select the type, voltage level, structural type and cooling method of the motor to ensure the reliable operation of the driven machinery. For example, ventilation, drainage, compressed air, lifting and other equipment with large and medium-sized high-voltage motors, the use of high-voltage 6kV or 10kV, in order to achieve the economic rationalization of power supply; mining face machinery with motors need to be based on the power of the equipment and the principle of power supply voltage level, the choice of 660V, 1140V or 3.3kV; for the use of external fan air-cooled cooling motor cooling difficulties, it is appropriate to use the shell of water-cooled motors; digging machine; the cooling method is not only the same as that of the motor, but it is also the best way to ensure the reliable operation of the driven machinery. Water-cooled motor; digging face rock dust is more, the auxiliary motors for roadheading machine generally use explosion-proof type without external fan cooling shell to reduce rock dust flying.
The motor should have appropriate standby power, mining general type motor load factor is generally between 0.8 ~ 0.9. However, for the motors used in mining machines with large load waves, it is necessary to analyze the specific conditions such as overload, blocking, etc., and select special motors, as well as adopting F and H grade insulated motors with higher temperature resistance to improve the operational reliability.
The structure, protection and insulation level of the motor should meet the requirements of the installation and use environment. According to China's "Coal Mine Safety Regulations", in the coal (rock) and gas protrusion of the mine and gas outflow tunnel area, to use explosion-proof mine motors; in the gas mine shaft yard, the total air intake or the main air intake can be used to choose mining general-type motors; in the mining area air intake, the total return lane, the main return lane, the mining area back to the air lane, the face and the face of the intake air, the return airway to choose explosion-proof mine motors, usually with explosion-proof motors. In the main return airway, main return airway, mine return airway, working face and working face airway, the return airway should use explosion-proof motors.
Structural Composition of Mining Motor
Stator
The stator is the stationary part of the motor, mainly composed of stator core, stator winding and seat. The stator core is usually made of silicon steel sheets laminated to reduce eddy current loss. The stator winding is designed and wound according to the type of motor (e.g. three-phase AC asynchronous motor) and voltage level (e.g. 660V, 1140V, etc.).
Rotor
The rotor is the rotating part of the motor and an important part for generating electromagnetic torque. The rotor usually consists of a rotor core, rotor windings and a rotor shaft. For asynchronous motors, the rotor winding may be a cage rotor (the rotor winding is shaped like a cage) or a wire-wound rotor (the rotor is set up with three-phase windings just like the stator and is connected to the external varistor through slip rings and brushes).
Cooling system
Since the working environment of mining motors is usually harsh, the problem of heat dissipation is particularly important. Therefore, mining motors mostly use shell water-cooled way to dissipate heat, such as shell spiral water inlet, axial round-trip water inlet and shell four corners of the water inlet and other forms. There is a cooling water cleaning hole on the housing shell, so as to unclog the motor when the water circuit is blocked.
Sealing device
Mining motors have perfect sealing devices to prevent external water and oil from entering the motor cavity, and to prevent the loss of bearing grease in the motor. The sealing grade is usually high, such as IP54 (wiring chamber) and IP44 (motor body), to meet the special requirements of the mining environment.
Our factory
WUXI MCM ELECTRIC MACHINERY CO.,LTD was established on October 18, 2011. Its registered address is located at Lot E15, Phase 5, Shuofang Industrial Concentration Zone, Xinwu District, Wuxi City (within Lidong Industrial Company). The legal representative is Dong Xiaofang. The business scope includes the manufacturing, processing, sales and technology development and technical services of motors; the research and development, design, processing and sales of industrial automatic control systems; the import and export of self-operated various commodities and technologies (the state limits the operation of companies or prohibits import and export) Except for goods and technologies).
video
FAQ
Hot Tags: TDMK Series Mining Electric Motor, China TDMK Series Mining Electric Motor manufacturers, suppliers, factory