Tag Archives: valve worm gearbox

China factory Yj-S Series Part-Turn Manual Valve Worm Gearbox for Ball Valves gearbox engine

Product Description

Product Description

YJ-S series Part-turn worm gearboxes suitable for Ball Valves, Butterfly Valves, Plug Valves,Rotary ball valves etc. The handwheel can choose according to your requirements.

 
YJ-S series part-turn worm gearbox made by precise casting, made by precise casting, new design, nice appearance, it transmitted by worm gear and worm. The worm  gear with self-locking. With tapered roller bearing, so the gearbox has good mechanical quality and steady operating performance. It has high mechanical efficiency, and easy to operate. The flange connecting to valve is adopts to ISO5211.
 

Product Parameters

  

Model YJ-1-S YJ-2-S YJ-2J-S YJ-3
-S
YJ-3J-S YJ-4
-S
YJ-4J-S YJ-5
-S
YJ-5J-S YJ-6
-S
YJ-6J
-S
YJ-7
-S
YJ-7X
-S
YJ-7J
-S
YJ-8
-S
YJ-8J
-S
YJ-9
-S
YJ-9J
-S
YJ-10
-S
YJ-11
-S
YJ-12
-S
Ratio 78:1 78:1 127:1 200:1 375:1 495:1 798:1 868:1 938:1 1100:1 2067:1 2260:1 3030::1 3960:1 5535:1 5900:1 7760:1 8526:1 9660:1 14130:1 19320:1
Max output torque  N.m 1300 1600 3000 4500 7500 12000 16500 23000 28000 32000 48000 63000 80000 100000 140000 190000 250000 350000 400000 650000 850000
Flange F12 F14 F16 F16 F20 F25 F30 F30 F35 F35 F40 F40 F48 F48 F48 F60 F60 F60 F80 F100 F100
φD 150 175 210 210 250 300 350 350 415 415 475 475 560 560 560 686 686 686 900 1200 1200
PCD D0 125 140 165 165 205 254 298 298 356 356 406 406 483 483 483 603 603 603 813 1042 1042
N-H-DP 4-M12-18 4-M16-20 4-M20-30 4-M20-30 8-M16-24 8-M16-24 8-M20-30 8-M20-30 8-M30-45 8-M30-40 8-M36-54 8-M36-54 12-M36-54 12-M36-54 12-M36-54 20-M36-54 20-M36-54 20-M36-54 20-M42-54 32-M42-54 32-M42-65
Max stem diameter 42
12×8
50
14×9
60
18×11
60
18×11
75
22×14
90
25×14
110
28×16
110
28×16
120
32×18
120
32×18
145
40×22
160
40×22
170
45×25
180
45×25
200
50×28
210
50×28
220
50×28
270
63×32
300
70×36
380
80×40
420
90×45

 

Company Profile

 

FAQ

 

Q: What’s your main products?
A: Our main products are worm gearbox, bevel gearbox and spur gearbox for gate valve, globe valve, ball valve, butterfly valve and etc.

Q: How long is your delivery time?
A: Delivery time was depends on the quantity of the order and our inventory, normally is 10~15 days.

Q: Term of payment?
A: T/T 30% in advance, T/T balance before shipment.

Q: Can you provide free sample?
A: Yes, we can provide the sample for free, but the shipping costs need paid by yourself.

Q: Could you specially design and produce according to client’s requirements?
A: Yes, we can

If any other questions about our products, welcome to contact us.
  /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Application: Industry Valves
Function: Change Drive Torque
Step: Double-Step
Type: Worm Gear Box
Protection Grade: IP65 (IP67, IP68 Optional)
Operation: Manual
Customization:
Available

|

Customized Request

worm gearbox

Calculating Gear Ratio in a Worm Reducer

The gear ratio in a worm reducer is determined by the number of teeth on the worm wheel (also known as the worm gear) and the number of threads on the worm shaft. The gear ratio formula for a worm reducer is:

Gear Ratio = Number of Teeth on Worm Wheel / Number of Threads on Worm Shaft

For example, if the worm wheel has 60 teeth and the worm shaft has a single thread, the gear ratio would be 60:1.

It’s important to note that worm reducers have an inherent self-locking property due to the angle of the worm threads. As a result, the gear ratio also affects the mechanical advantage and the system’s ability to resist backdriving.

When calculating the gear ratio, ensure that the worm reducer is properly designed and that the gear ratio aligns with the desired mechanical characteristics for your application. Additionally, consider factors such as efficiency, load capacity, and speed limitations when selecting a gear ratio for a worm reducer.

worm gearbox

Energy Efficiency of a Worm Gearbox: What to Expect

The energy efficiency of a worm gearbox is an important factor to consider when evaluating its performance. Here’s what you can expect in terms of energy efficiency:

  • Typical Efficiency Range: Worm gearboxes are known for their compact size and high gear reduction capabilities, but they can exhibit lower energy efficiency compared to other types of gearboxes. The efficiency of a worm gearbox typically falls in the range of 50% to 90%, depending on various factors such as design, manufacturing quality, lubrication, and load conditions.
  • Inherent Losses: Worm gearboxes inherently involve sliding contact between the worm and worm wheel. This sliding contact generates friction, leading to energy losses in the form of heat. The sliding action also contributes to lower efficiency when compared to gearboxes with rolling contact.
  • Helical-Worm Design: Some manufacturers offer helical-worm gearbox designs that combine elements of helical and worm gearing. These designs aim to improve efficiency by incorporating helical gears in the reduction stage, which can lead to higher efficiency compared to traditional worm gearboxes.
  • Lubrication: Proper lubrication plays a significant role in minimizing friction and improving energy efficiency. Using high-quality lubricants and ensuring the gearbox is adequately lubricated can help reduce losses due to friction.
  • Application Considerations: While worm gearboxes might have lower energy efficiency compared to other types of gearboxes, they still offer advantages in terms of compactness, high torque transmission, and simplicity. Therefore, the decision to use a worm gearbox should consider the specific requirements of the application, including the trade-off between energy efficiency and other performance factors.

When selecting a worm gearbox, it’s essential to consider the trade-offs between energy efficiency, torque transmission, gearbox size, and the specific needs of the application. Regular maintenance, proper lubrication, and selecting a well-designed gearbox can contribute to achieving the best possible energy efficiency within the limitations of worm gearbox technology.

worm gearbox

Types of Worm Gear Configurations and Their Uses

Worm gear configurations vary based on the arrangement of the worm and the gear it engages with. Here are common types and their applications:

  • Single Enveloping Worm Gear: This configuration offers high torque transmission and efficiency. It’s used in heavy-duty applications like mining equipment and industrial machinery.
  • Double Enveloping Worm Gear: With increased contact area, this type provides higher load capacity and improved efficiency. It’s used in aerospace applications, robotics, and precision machinery.
  • Non-Throated Worm Gear: This type has a cylindrical worm without a throat. It’s suitable for applications requiring precise motion control, such as CNC machines and robotics.
  • Throated Worm Gear: Featuring a throat in the worm, this configuration offers smooth engagement and higher load capacity. It’s used in conveyors, elevators, and automotive applications.
  • Non-Modular Worm Gear: In this design, the worm and gear are a matched set, resulting in better meshing and efficiency. It’s utilized in various industries where customization is essential.
  • Modular Worm Gear: This type allows interchangeability of worm and gear components, providing flexibility in design and maintenance. It’s commonly used in conveyors, mixers, and material handling systems.

Selecting the appropriate worm gear configuration depends on factors such as load capacity, efficiency, precision, and application requirements. Consulting gearbox experts can help determine the best configuration for your specific needs.

China factory Yj-S Series Part-Turn Manual Valve Worm Gearbox for Ball Valves   gearbox engineChina factory Yj-S Series Part-Turn Manual Valve Worm Gearbox for Ball Valves   gearbox engine
editor by CX 2024-03-02

China best Yj-1s-L Series Part-Turn Manual Valve Worm Gearbox for Butterfly Ball Valves cycloidal gearbox

Product Description

Product Description

YJ-1S-L series Part-turn worm gearboxes suitable for Ball Valves, Butterfly Valves, Plug Valves,etc. Handwheel can choose according to your requirements.

 
YJ-1S-L series part-turn worm gearbox has good mechanical quality and steady operating performance. It has high mechanical efficiency, with new design, and it’s very easy to operate. The flange connecting to valve is according to ISO5211.
 

Product Parameters

 

Model YJ-1
-S-L
YJ-2
-S-L
YJ-2J
-S-L
YJ-3
-S-L
YJ-3J
-S-L
YJ-4
-S-L
YJ-4J
-S-L
YJ-5
-S-L
YJ-5J
-S-L
YJ-6
-S-L
YJ-6J
-S-L
YJ-7
-S-L
YJ-7X
-S-L
YJ-7J
-S-L
YJ-8
-S-L
YJ-8J
-S-L
YJ-9
-S-L
YJ-9J
-S-L
YJ-10
-S-L
YJ-11
-S-L
YJ-12
-S-L
Ratio 78:1 78:1 127:1 200:1 375:1 495:1 798:1 868:1 938:1 1100:1 2067:1 2260:1 3030::1 3960:1 5535:1 5900:1 7760:1 8526:1 9660:1 14130:1 19320:1
Max output torque
N.m
1300 1600 3000 4500 7500 12000 16500 23000 28000 32000 48000 63000 80000 100000 140000 190000 250000 350000 400000 650000 850000
Max stem diameter 42 50 60 60 75 90 110 110 120 120 145 160 170 180 200 210 220 270 300 380 420
Flange F12 F14 F16 F16 F20 F25 F30 F30 F35 F35 F40 F40 F48 F48 F48 F60 F60 F60 F80 F100 F100
φD 150 175 210 210 250 300 350 350 415 415 475 475 560 560 560 686 686 686 900 1200 1200
PCD D0 125 140 165 165 205 254 298 298 356 356 406 406 483 483 483 603 603 603 813 1042 1042
N-H-DP 4-M12-18 4-M16-20 4-M20-30 4-M20-30 8-M16-24 8-M16-24 8-M20-30 8-M20-30 8-M30-45 8-M30-40 8-M36-54 8-M36-54 12-M36-54 12-M36-54 12-M36-54 20-M36-54 20-M36-54 20-M36-54 20-M42-65 32-M42-65 32-M42-65

 

Company Profile

 

FAQ

Q: What’s your main products?
A: Our main products are worm gearbox, bevel gearbox and spur gearbox for gate valve, globe valve, ball valve, butterfly valve and etc.

Q: How long is your delivery time?
A: Delivery time was depends on the quantity of the order and our inventory, normally is 10~15 days.

Q: Term of payment?
A: T/T 30% in advance, T/T balance before shipment.

Q: Can you provide free sample?
A: Yes, we can provide the sample for free, but the shipping costs need paid by yourself.

Q: Could you specially design and produce according to client’s requirements?
A: Yes, we can

If any other questions about our products, welcome to contact us.

  /* March 10, 2571 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Application: Industry Valves
Function: Change Drive Torque
Type: Worm Gear Box
Protection Grade: IP65 (IP67,IP68 Optional)
Operation: Manual
Material: Ductile Iron, carbon Steel (Customizable)
Customization:
Available

|

Customized Request

worm gearbox

Common Problems and Troubleshooting for Worm Gearboxes

Worm gearboxes, like any mechanical component, can experience various issues over time. Here are some common problems that may arise and possible troubleshooting steps:

  • Overheating: Overheating can occur due to factors such as inadequate lubrication, excessive loads, or high operating temperatures. Check lubrication levels, ensure proper ventilation, and reduce loads if necessary.
  • Noise and Vibration: Excessive noise and vibration may result from misalignment, worn gears, or improper meshing. Check for misalignment, inspect gear teeth for wear, and ensure proper gear meshing.
  • Leakage: Oil leakage can be caused by damaged seals or gaskets. Inspect seals and gaskets, and replace them if necessary.
  • Reduced Efficiency: Efficiency loss can occur due to friction, wear, or misalignment. Regularly monitor gearbox performance, ensure proper lubrication, and address any wear or misalignment issues.
  • Backlash: Excessive backlash can affect precision and accuracy. Adjust gear meshing and reduce backlash to improve performance.
  • Seizure or Binding: Seizure or binding can result from inadequate lubrication, debris, or misalignment. Clean the gearbox, ensure proper lubrication, and address misalignment issues.
  • Worn Gears: Worn gear teeth can lead to poor performance. Regularly inspect gears for signs of wear, and replace worn gears as needed.
  • Seal Wear: Seals can wear over time, leading to leakage and contamination. Inspect seals regularly and replace them if necessary.

If you encounter any of these problems, it’s important to address them promptly to prevent further damage and maintain the performance of your worm gearbox. Regular maintenance, proper lubrication, and addressing issues early can help extend the lifespan and reliability of the gearbox.

worm gearbox

Diagnosing and Fixing Oil Leakage in a Worm Gearbox

Oil leakage in a worm gearbox can lead to reduced lubrication, increased friction, and potential damage to the gearbox components. Here’s a step-by-step process to diagnose and fix oil leakage:

  1. Inspect the Gearbox: Perform a visual inspection of the gearbox to identify the source of the leakage. Check for oil stains, wet spots, or oil pooling around the gearbox.
  2. Check Seals and Gaskets: Inspect the seals, gaskets, and O-rings for any signs of wear, cracks, or damage. These components are common points of leakage.
  3. Tighten Bolts and Fasteners: Ensure that all bolts, screws, and fasteners are properly tightened. Loose fasteners can create gaps that allow oil to escape.
  4. Replace Damaged Seals: If you find damaged seals or gaskets, replace them with new ones. Use seals that are compatible with the operating conditions and lubricant.
  5. Check Breather Vent: A clogged or malfunctioning breather vent can cause pressure buildup inside the gearbox, leading to leakage. Clean or replace the breather vent if necessary.
  6. Examine Shaft Seals: Check the shaft seals for wear or damage. If they’re worn out, replace them with seals of the appropriate size and material.
  7. Use Proper Lubricant: Ensure that you’re using the correct lubricant recommended for the gearbox. Using the wrong type of lubricant can cause leaks.
  8. Apply Sealants: In some cases, applying a suitable sealant to the joints and connections can help prevent leaks. Follow the manufacturer’s instructions for proper application.
  9. Monitor Leakage: After addressing the issues, monitor the gearbox for any signs of continued leakage. If leakage persists, further investigation may be required.
  10. Regular Maintenance: Implement a regular maintenance schedule that includes checking seals, gaskets, and other potential leakage points. Timely maintenance can prevent future leakage issues.

If you’re unsure about diagnosing or fixing oil leakage in a worm gearbox, consider consulting with a professional or gearbox manufacturer to ensure proper resolution.

worm gearbox

What Industries Commonly Use Worm Reducers?

Worm reducers are versatile mechanical components that find applications in various industries due to their unique advantages and capabilities. Some of the industries that commonly use worm reducers include:

  • Material Handling: Worm reducers are widely used in material handling equipment such as conveyors, bucket elevators, and cranes to control movement and manage heavy loads.
  • Automotive: They are utilized in automotive manufacturing processes, assembly lines, and vehicle positioning systems.
  • Food and Beverage: Worm reducers are used in food processing and packaging machinery where hygiene and cleanliness are crucial.
  • Agriculture: Agricultural equipment like irrigation systems and tractors use worm reducers for controlling rotational motion.
  • Mining and Construction: Heavy-duty applications in mining equipment, excavators, and construction machinery benefit from the torque multiplication provided by worm reducers.
  • Energy: Wind turbines and solar tracking systems use worm reducers to convert low-speed, high-torque motion into rotational energy.
  • Textile: Textile machinery employs worm reducers for controlling speed and tension in weaving and spinning operations.
  • Packaging: Packaging equipment relies on worm reducers for precise movement and positioning of packaging materials.
  • Medical: Medical devices and equipment often utilize worm reducers for their accuracy and controlled motion.
  • Printing: Printing machines use worm reducers to regulate paper feed and ensure consistent printing quality.

Worm reducers’ ability to provide high torque output, compact design, and self-locking characteristics makes them suitable for applications requiring reliable and controlled motion across various industries.

China best Yj-1s-L Series Part-Turn Manual Valve Worm Gearbox for Butterfly Ball Valves   cycloidal gearbox	China best Yj-1s-L Series Part-Turn Manual Valve Worm Gearbox for Butterfly Ball Valves   cycloidal gearbox
editor by CX 2024-02-25

China supplier Xhw85pg4 Part Turn Two-Stage Worm Gearbox for Valve wholesaler

Product Description

Model: XHW85PG4 worm gearbox for valve
Double stage

Application
XHW part turn worm gearboxes are applied to dampers, ball valves, butterfly valves and also other 90° quarter turn valves. XHW part turn worm gear operator has variety models of hand wheel for optional.
 
Operating Environment

XHW part turn worm gearboxes are with good mechanical quality and steady operating performance which apply to deal with variety climate and temperature. We strive to develop RHW part turn worm gear operators to meet higher demands.
Enclosure: IP67
Working Temperature: From -20ºC to 120ºC( -4ºF to 248ºF)
Painting: Silver grey (Customization)

 

Introduction
XHW series Part-turn Gearboxes use worm and worm wheel revolute pairs, with high performance needle roller bearing assembled on both ends of the worm shaft. It ensures the thrust requirement during rotation. It’s in high mechanical efficiency withstands big torque, small size with compact design, and it’s also easy to operate and has reliable self-locking function.
 
Characters
1.Precision casting ductile iron housing
2.Optional output torque, range up to 32000Nm
3.High efficient needle roller bearing
4.High strength steel input shaft
5.Stroke 0°- 90°( ±5°)
6.Compact structure
7.Grease filled for longer life
8.Adjustable stopper (±5°)
9.Good seal
 
Connect with valve
The flange connecting to valve is according to ENISO5210 or DIN3210(Customization)
 

Main Products
Worm gearbox, bevel gearbox, valve gear box, worm gear operator, worm gear actuator, valve worm gear, valve gear operator, valve gear actuator, valve actuator
Gear Operator, Valve Gearbox, Worm Gearbox, Gearbox, Speed Reducer, Part-turn Worm Gearbox, Worm Gearbox Supplier, High Quality Worm Gearbox, Gearbox manufacturer

(XHW85-PG6S)

 

Application: Industry
Type: Worm and Wormwheel
Painting: Silver Grey or Customization
Manipulate Way: Manual Operation
Material: Cast Iron
Working Temperature: -20 to 120 Degrees Celsius
Customization:
Available

|

Customized Request

worm gearbox

Self-Locking Properties in a Worm Gearbox

Yes, worm gearboxes exhibit self-locking properties, which can be advantageous in certain applications. Self-locking refers to the ability of a mechanism to prevent the transmission of motion from the output shaft back to the input shaft when the system is at rest. Worm gearboxes inherently possess self-locking properties due to the unique design of the worm gear and worm wheel.

The self-locking behavior arises from the angle of the helix on the worm shaft. In a properly designed worm gearbox, the helix angle of the worm is such that it creates a mechanical advantage that resists reverse motion. When the gearbox is not actively driven, the friction between the worm threads and the worm wheel teeth creates a locking effect.

This self-locking feature makes worm gearboxes particularly useful in applications where holding a load in position without external power is necessary. For instance, they are commonly used in situations where there’s a need to prevent a mechanism from backdriving, such as in conveyor systems, hoists, and jacks.

However, it’s important to note that while self-locking properties can be beneficial, they also introduce some challenges. The high friction between the worm gear and worm wheel during self-locking can lead to higher wear and heat generation. Additionally, the self-locking effect can reduce the efficiency of the gearbox when it’s actively transmitting motion.

When considering the use of a worm gearbox for a specific application, it’s crucial to carefully analyze the balance between self-locking capabilities and other performance factors to ensure optimal operation.

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

Types of Worm Gear Configurations and Their Uses

Worm gear configurations vary based on the arrangement of the worm and the gear it engages with. Here are common types and their applications:

  • Single Enveloping Worm Gear: This configuration offers high torque transmission and efficiency. It’s used in heavy-duty applications like mining equipment and industrial machinery.
  • Double Enveloping Worm Gear: With increased contact area, this type provides higher load capacity and improved efficiency. It’s used in aerospace applications, robotics, and precision machinery.
  • Non-Throated Worm Gear: This type has a cylindrical worm without a throat. It’s suitable for applications requiring precise motion control, such as CNC machines and robotics.
  • Throated Worm Gear: Featuring a throat in the worm, this configuration offers smooth engagement and higher load capacity. It’s used in conveyors, elevators, and automotive applications.
  • Non-Modular Worm Gear: In this design, the worm and gear are a matched set, resulting in better meshing and efficiency. It’s utilized in various industries where customization is essential.
  • Modular Worm Gear: This type allows interchangeability of worm and gear components, providing flexibility in design and maintenance. It’s commonly used in conveyors, mixers, and material handling systems.

Selecting the appropriate worm gear configuration depends on factors such as load capacity, efficiency, precision, and application requirements. Consulting gearbox experts can help determine the best configuration for your specific needs.

China supplier Xhw85pg4 Part Turn Two-Stage Worm Gearbox for Valve   wholesaler China supplier Xhw85pg4 Part Turn Two-Stage Worm Gearbox for Valve   wholesaler
editor by CX 2023-09-22