Product Description

Design
Armed with the idea of the small in volume, light in weight and novel in pattern, we designed and developed the CHINAMFG series gear operators which are wildly applied in the area of valve automation control. These kinds of products were specially designed used for butterfly valve, ball valve and plug valve together with YSPHA series pneumatic actuator

Feature
1, Easy connection: There are 2 keyway apart 90¡ In the inner hole of worm gear so as to be convenient for customer to choose relative position between gear operator and valve.
2, Easy operating: Pull out the position pin and rotate off center device with 180¡ To realize pneumatic drive by positioning pin acted or to realize manual drive in the opposite way.
3, Dustproof and waterproof: The gear operator is filled with special lubricant before leaving the factory. It is CHINAMFG sealed with valve after installation possessing dustproof and waterproof function with protecting grade IP65.
4, Many Output torques: It consists of a series of products, so output torque matches with all kinds of pneumatic devices and valves.

Operating principle
1, Assembling procedures: The bottom of gear operator should be connected with valve, bracket surface connected with cylinder (actuator), valve stem go through the inner hole of worm gear and the square on the end of stem matches with square hole of cylinder (actuator).
2, Operating procedures: The cylinder (actuator) drives valve stem and worm gear rotating together when pneumatic drive and worm shaft meshes with worm gear to drive valve stem rotating along with piston of cylinder (actuator) moving when manual drive. When pneumatic drive, pull out the pneumatic drive by worm gear rotating following with pneumatic valve stem. Just make the worm shaft mesh to realize manual drive.
 

Gear Box Type Ratio Output
(Torque Nm)
Input
(Torque Nm)
Weight(KG)
EG350 44:1 350 31.25 6
EG700 52:1 700 50 16.3
EG1600 42:1 1600 125 25
EG3000 72:1 3000 155 49.5

 

Casting Method: Sand Casting
Casting Form Material: Metal
Casting Metal: Cast Iron
Casting Form Usage Count: Permanent
Surface Treatment: Polishing
Surface Roughness: Ra0.05
Customization:
Available

|

Customized Request

worm gearbox

Can a Worm Gearbox Be Used in Heavy-Duty Machinery?

Yes, a worm gearbox can be used in heavy-duty machinery and is often chosen for such applications due to its inherent characteristics and advantages:

  • High Torque Transmission: Worm gearboxes are known for their ability to transmit high torque loads, making them suitable for heavy-duty machinery that requires significant power transmission.
  • Load Distribution: The design of worm gears provides robust load distribution and excellent contact between the worm and worm wheel teeth. This enhances their load-carrying capacity, making them capable of handling heavy loads without premature wear or failure.
  • Compact Design: Worm gearboxes are compact and offer high reduction ratios in a single stage. This allows for the reduction of high input speeds to lower output speeds, often required in heavy-duty machinery.
  • Overload Protection: Worm gears have a natural self-locking feature, which means the gear cannot be easily back-driven by external forces. This feature provides inherent overload protection, preventing damage to the gearbox and machinery in cases of sudden load spikes.
  • Smooth Operation: Worm gearboxes offer smooth and steady operation, which is crucial for heavy-duty machinery where precision and controlled movement are essential.

However, when considering the use of a worm gearbox in heavy-duty applications, it’s important to ensure proper engineering and sizing. The design should account for factors such as load, speed, duty cycle, lubrication, and temperature to ensure optimal performance and longevity.

Overall, worm gearboxes are well-suited for heavy-duty machinery across various industries, including mining, construction, manufacturing, and more.

worm gearbox

Materials Used for Worm Gears

Worm gears are manufactured using a variety of materials to meet different application requirements. Some commonly used materials for worm gears include:

  • Steel: Steel is a popular choice for worm gears due to its strength, durability, and wear resistance. It can handle heavy loads and is often used in industrial applications.
  • Bronze: Bronze offers good lubricity and is commonly used for the worm gear (worm) component. It provides effective wear resistance and works well in applications where quiet operation is essential.
  • Cast Iron: Cast iron is known for its high strength and durability. It’s often used for worm gears in applications where shock loads or heavy-duty conditions are expected.
  • Aluminum: Aluminum worm gears are lightweight and corrosion-resistant, making them suitable for applications where weight reduction is important.
  • Plastic: Some worm gears are made from plastic materials such as nylon or acetal. These materials are often chosen for their self-lubricating properties and quiet operation.
  • Composite Materials: Composite materials can offer a combination of properties, such as lightweight construction and corrosion resistance. They can be suitable for specific applications.

The choice of material depends on factors such as the application’s load, speed, operating environment, and required performance characteristics. It’s important to consider these factors when selecting the appropriate material for worm gears to ensure optimal performance and longevity.

worm gearbox

Preventing Backlash in a Worm Gearbox

Backlash in a worm gearbox can lead to reduced accuracy, positioning errors, and decreased overall efficiency. Here are steps to prevent or minimize backlash:

  • High-Quality Components: Use high-quality worm gears and worm wheels with tight manufacturing tolerances. Precision components will help reduce backlash.
  • Proper Meshing: Ensure the worm gear and worm wheel are properly aligned and meshed. Improper meshing can lead to increased backlash.
  • Preload: Applying a small amount of preload to the worm gear can help reduce backlash. However, excessive preload can increase friction and wear.
  • Anti-Backlash Mechanisms: Consider using anti-backlash mechanisms, such as spring-loaded systems or adjustable shims, to compensate for any inherent backlash.
  • Lubrication: Proper lubrication can reduce friction and play a role in minimizing backlash. Use a lubricant that provides good film strength and reduces wear.
  • Maintenance: Regularly inspect and maintain the gearbox to identify and address any changes in backlash over time.

It’s important to strike a balance between reducing backlash and maintaining smooth operation. Consulting with gearbox experts and following manufacturer guidelines will help you optimize your worm gearbox’s performance while minimizing backlash.

China best Gear Box Series (body quadrant worm indicator and coverplate)   wholesaler China best Gear Box Series (body quadrant worm indicator and coverplate)   wholesaler
editor by CX 2023-09-27