Production Procedure of Traction Motors for Mining Battery Locomotives and Trolley Railways

In the production of traction motors used in mining battery locomotives and trolley railways, precision and quality are critical. These motors play a vital role in the operational efficiency and safety of electrical transportation systems, particularly in the mining industry where robust and reliable equipment is essential.

Copper Wire

The use of refined copper is paramount to ensure optimal conductivity and prevent excessive heat generation in the motor. Trustworthy suppliers such as JIANGTONG are chosen to guarantee the copper's quality. Recycled copper, while potentially cost-effective, can compromise conductivity and is therefore not recommended for use in these specialized motors.

Insulation Materials

Efficient and reliable insulation is key to the motor's performance and longevity. Insulating materials, including paper insulation, insulating film, insulating paint, and insulating bakelite, are carefully selected to ensure both insulation and extended service life. Each material has its specific advantages and application areas, thus a thorough understanding of their properties is crucial.

Winding

The winding process involves using insulated enameled wire on an online mold. This process demands meticulous craftsmanship, especially in managing the connectivity during the turn process. Ensuring the correct insulation performance, dimensional accuracy, and tightness of the structure is essential to avoid issues like embedding during the embedding process. Any defects in this stage can lead to short circuits, reduce the motor's lifespan, and compromise overall performance.

Coated Wire

Careful attention is required during the process of insulated wire coating. The thickness, strength, and uniformity of the coating are critical parameters. Ensuring each layer's reliability and the correct overlap is essential to maintain the desired size and insulation performance. Excessive thickness can affect the overall size, while insufficient thickness can degrade insulation. The right balance is critical for achieving high-quality motor components.

Wire Embedding

The embedding process requires a high level of technical expertise and precision. Professionals with over 5-8 years of experience, familiar with the key steps and process requirements during the offline stage, handle this process to prevent damage to crucial parts. Ensuring the tightness of the slot wedges is also critical to maintain slot loading without risking coil insulation. Proper embedding is a decisive factor in the motor's long-term performance and reliability.

Dipping Paint

Class F insulating paint is commonly used, divided into ordinary dipping and vacuum pressure dipping. The process involves three drying and two vacuum pressure dipping cycles to ensure that the gaps are filled with insulating paint, making the armature and magnetic poles form a cohesive unit with excellent moisture-proof and electrical performance.

Assembly

The assembly process is another critical stage where precision is key. Attending to the insulation of the connections and the accuracy of the magnetic poles is crucial. Insufficient accuracy can result in degraded electrical performance, instability in operation, loud noise, and severe armature wear, potentially leading to motor failure.

Experimentation

Each motor undergoes rigorous tests, including pressure tests, load tests, and, if applicable, water pressure tests for explosion-proof motors. Compliance with factory standards, which often exceed national standards, ensures the reliability and performance of the motors.

By adhering to these detailed production procedures, we ensure the high quality and reliability of our traction motors for mining battery locomotives and trolley railways. Our commitment to precision and quality showcases our dedication to providing reliable and efficient transportation solutions for the mining industry.