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The scotch yoke pneumatic actuator is an angular stroke piston actuator, which is mainly used to control valves with a 90° rotation angle, such as ball valves, butterfly valves, plug valves, etc. The following are some key features and applications of scotch yoke pneumatic actuators:
Working principle: The scotch yoke pneumatic actuator enters the cylinder through compressed air, pushes the piston to move linearly, and then converts the linear motion into the rotational motion of the scotch yoke through the design of the piston pin and the scotch yoke U-shaped groove, thereby realizing the control of the valve.
Type: According to the different types of action, scotch yoke pneumatic actuators can be divided into single-acting and double-acting. The closing action of the single-acting actuator is completed by spring reset, while the switching action of the double-acting actuator is completed by air source drive.
Structure: The scotch yoke pneumatic actuator usually refers to a pneumatic actuator with a structure of "single cylinder double piston-variable torque scotch yoke", which has a symmetrical and inclined steel scotch yoke mechanism, which can provide different torque output characteristics.
Application: It is suitable for occasions where large torque output is required, especially when the torque requirement is higher than 7000Nm, the scotch yoke actuator is more cost-effective than the gear rack actuator.
Material: Scotch fork pneumatic actuators can be divided into aluminum alloy type, stainless steel type, carbon steel type, etc. according to the main material to adapt to different industrial environments and corrosion resistance requirements.
Performance characteristics: The inclined steel yoke mechanism of the high-power yoke pneumatic actuator has a very high starting torque and a low operating torque, which is suitable for the control of butterfly valves; while the symmetrical steel yoke mechanism has a more balanced torque curve, which is mainly suitable for the control of ball valves and plug valves.
Scotch fork pneumatic actuators play an important role in the field of industrial automation and process control due to their high torque output and adaptability.
Changzhou Xinneng Automatic Control Equipment Co., Ltd is a technology-based enterprise specializing in research, development, production, sales, and service of various electric actuators, valves, and automatic control systems. As a China Custom Scotch Yoke Pneumatic Actuator Suppliers and Scotch Yoke Pneumatic Actuator Manufacturers, annual production and sales of electric valve actuators of more than 10,000 sets. In 2006 through the IS09001 quality management system certification, and obtained the national "productflame-proof certification", "explosion-proof the national industrial product production permit" issued by the National Center for AnBiao "mining productssafety sign certificate", and in cooperation with the district technology bureau established the engineering research center for intelligent digital electric actuators, 16 patent for utility model.
The company product series is complete, the actuator product has the common type, the whole type, the adjustment type, the intelligent type, the explosion-proof type BT4, CT4, MA mining type, and so on. The AUKEMA intelligent electric actuator has reached the international level, with better control than imported products, and is closer to the actual needs of the domestic market.
The company is committed to product type optimization and qualitmprovement, combined with the market demand, developed a special electric valve for coal mines, the application of thousands of major coal mining groups in the mine, improved the level of coal mine automation; Environmental protection desulfurization and off-sale electric valve is widely used in the field of power stations, contributing to environmental protection. Okuma explosion-proof series BT4, CT4 electric valve is the priority brand of oil, petrochemical, natural gas, gas, and other flameproof fields. In addition, many supporting products in metallurgy, water treatment, electric power, shipbuilding, fire, and other fields, users - praise. In recent years, the company increased the development of overseas markets, products are exported to Indonesia, Pakistan, Singapore, Nigeria, Malaysia, and other countries.
Enterprises adhering to desirable product quality will occupy the market, tread the industry with advanced science and technology, improve the service system to return the customer's purpose and strive to become a flow of valve actuator manufacturing enterprises.
Quality commitment: the company's products have three guarantees, product lifetime warranty, and satisfactory after-sales service.
We strive to provide quality products and satisfactory services for the development of automation, looking forward to your sincere cooperation!
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Read MoreTechnical safeguards
1. Material selection and optimization
The material selection of the scotch yoke pneumatic actuator is the basis for ensuring its durability. Changzhou Xinneng Automatic Control Equipment Co., Ltd. has carefully selected the materials and provided a variety of options such as aluminum alloy, stainless steel, and carbon steel to meet the corrosion resistance, high temperature resistance or high strength requirements in different industrial environments. Especially for actuators used in harsh environments, such as petrochemical, natural gas and other explosion-proof fields, the company prefers to use high-strength, corrosion-resistant stainless steel or special alloy materials to improve the overall fatigue resistance and service life of the actuator.
2. Structural design and optimization
The structural design of the scotch yoke pneumatic actuator directly affects its torque output, motion stability and durability. Changzhou Xinneng Automatic Control Equipment Co., Ltd. adopts the "single-cylinder double-piston-variable torque scotch yoke" structure in the design of the scotch yoke mechanism, and provides different torque output characteristics through symmetrical or inclined steel scotch yoke mechanisms to meet different valve types and control requirements. This design not only improves the matching of the actuator's starting torque and operating torque, but also reduces wear and extends service life by optimizing the contact surface between the fork and the piston pin.
3. Lubrication and sealing technology
Good lubrication and sealing are the key to ensuring the long-term and stable operation of pneumatic actuators. Changzhou Xinneng Automatic Control Equipment Co., Ltd. uses high-performance lubricating materials and sealing structures, such as self-lubricating bearings, O-rings and PTFE seals, in the design of pneumatic actuators to reduce friction and prevent leakage, thereby improving the reliability and durability of the actuator. At the same time, the company also pays attention to the guidance of regular maintenance and care to ensure that users can correctly perform lubrication and replacement of seals to further extend the service life of the actuator.
Durability testing and verification
1. Simulated working condition testing
In order to ensure the durability of the scotch fork pneumatic actuator in actual applications, Changzhou Xinneng Automatic Control Equipment Co., Ltd. conducted rigorous simulated working condition testing during the product development stage. The test covers the operation under different temperatures, pressures, humidity and corrosive gas environments, simulating various extreme conditions that may be encountered in actual industrial applications. Through testing, the company can evaluate the performance stability of the actuator, the corrosion resistance of the material, and the durability of the seal, so as to make necessary optimization and improvement to the product.
2. Fatigue life test
Fatigue life test is an important means to evaluate the durability of the scotch yoke pneumatic actuator. Changzhou Xinneng Automatic Control Equipment Co., Ltd. uses advanced fatigue testing equipment to conduct long-term continuous operation tests on the actuator to simulate its fatigue accumulation effect under long-term work. During the test, the company recorded key parameters such as the torque output change, movement smoothness, sealing performance, and noise level of the actuator. Through data analysis, the fatigue life and reliability of the actuator were evaluated.
3. Field application verification
In addition to laboratory testing, Changzhou Xinneng Automatic Control Equipment Co., Ltd. also pays attention to field application verification. The company cooperates with users to install scotch yoke pneumatic actuators in actual industrial sites for long-term operation monitoring and data collection. This field verification can not only help the company to discover and solve potential problems in a timely manner, but also provide users with more reliable products and solutions.
Company advantages and product optimization
Changzhou Xinneng Automatic Control Equipment Co., Ltd. has fully utilized its technical strength and industry experience in the development and production of scotch yoke pneumatic actuators. The company not only has advanced production equipment and technical teams, but also cooperated with the District Science and Technology Bureau to establish an intelligent digital electric actuator engineering technology research center, dedicated to product type optimization and quality improvement. Through continuous R&D investment and technological innovation, the company has successfully improved the durability of scotch yoke pneumatic actuators to a new level.
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