Dongwei Precision Machinery

The worm gear of a high-voltage switch electric actuator is a special mechanical transmission component, mainly used to convert the high-speed rotation of the motor into a low-speed, high-torque output to drive the opening and closing of the high-voltage switch. It is the core component in the electric actuator that achieves speed reduction and torque increase.
 

Structure and Composition
The worm gear of a high-voltage switch electric actuator is usually composed of a worm gear body, a worm, bearings, and a housing. The worm gear body meshes with the worm to form a unique transmission system. Bearings are used to support the worm gear and worm, ensuring smooth operation between them. The housing serves as a support structure, protecting the internal transmission components from external environmental interference.
 

Working Principle
When the motor starts, it drives the worm to rotate. The meshing action between the worm and the worm gear causes the worm gear to start rotating. Due to the matching of the tooth shape and helix angle of the worm and worm gear, the worm gear mechanism can achieve a large transmission ratio, thereby converting the high-speed rotation of the motor into a low-speed, high-torque output. This output torque is transmitted to the high-voltage switch through the transmission shaft to achieve its opening and closing action.
 

Performance Characteristics
Large Transmission Ratio: Worm gear mechanisms typically have a large transmission ratio, allowing the high-speed rotation of the motor to be converted into the required low-speed, high-torque output.
Smooth Transmission: Worm gear transmission has a smooth transmission effect, low noise, and is suitable for environments requiring quiet operation.
Self-locking: In some cases, the worm gear mechanism has self-locking properties; that is, when the lead angle of the worm is less than the equivalent friction angle of the worm gear pair material, only the worm can drive the worm gear to rotate, and the worm gear cannot drive the worm to rotate. This characteristic is widely used in some safety devices.
High Strength and Wear Resistance: Worm gears are usually made of high-strength and wear-resistant materials to ensure their stability and durability during long-term operation.
 

Application Areas
Worm gears for high-voltage switch electric actuators are widely used in high-voltage switchgear in power systems, such as circuit breakers and isolators. It can achieve fast, accurate, and reliable opening and closing actions of high-voltage switches, ensuring the safe and stable operation of the power system.

Precision accessories are mechanical, electronic, optical and other parts with high precision, high quality and high reliability. They play a vital role in the development of modern industry and science and technology. The following is a detailed description of precision accessories:
Definition of precision accessories
Precision parts are mechanical, electronic, optical and other parts produced through precision manufacturing processes and technologies, with high precision, high quality, high reliability and other characteristics. These accessories are widely used in aviation, aerospace, energy, transportation, medical, electronic and electrical, industrial automation and other fields, and play a vital role in product performance and reliability.
Classification of precision accessories
According to the application field and processing technology, precision accessories can be divided into the following categories:
Mechanical precision accessories: including precision bearings, precision reducers, precision gears, precision shafts, etc. These accessories have the characteristics of high strength, high wear resistance and high precision, and are widely used in machine tools, automobiles, aerospace and other fields.
Electronic precision accessories: including semiconductor devices, precision connectors, circuit board components, etc. These accessories have the characteristics of small size, low power consumption and high performance, and are widely used in electronic equipment, communication systems and other fields.
Optical precision accessories: including optical lens, optical prism, grating, etc. The manufacture and assembly of these accessories require a high degree of precision and are widely used in photography, industrial inspection, medical equipment and other fields.