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Product Description

Description

 

HDM De-clutchable wormgear offers simple and reliable manual positioning of the valves, dampers and other quarter-turn devices when overriding existing pneumatic, electric or hydraulic quarter-turn actuators. All unit are suitable for both indoor and outdoor installation. The modular design is to provide the most efficient and effective solution to a full range of manual overriding requirements.

Main Product features
 

To engage manual operation, first pull out the lock handle and then rotate the clutch lever in anti-clockwise direction until engagement takes place. To return to automatic mode, first pull out the lock handle and then rotate the clutch lever in clockwise.

Remark:The bottom center of the HDM-4 is either F10/F14 or F10/F12

 

 

New Manual Override Countershaft Valve Connection Actuator Connection
b1 N b2 M D1 4-M1 D2 4-M2 E D3 4-Φ1 D4 4-Φ2
HDM-1 14 22 14 16 Φ50 4-M6 Φ70 4-M8 70*70 Φ50 4-Φ6.5 Φ70 4-Φ8.5
HDM-2 17 22 17 18 Φ70 4-M8 Φ102 4-M10 95*95 Φ70 4-Φ8.5 Φ102 4-Φ10.5
HDM-3 22 28 22 22 Φ102 4-M10 Φ125 4-M12 114*114 Φ102 4-Φ10.5 Φ125 4-Φ12.5
HDM-4 27 32 27 30 Φ102 4-M10 Φ125 4-M12 129*129 Φ125 4-Φ12.5 Φ140 4-Φ16.5
HDM-5 36 45 36 38 Φ140 4-M16 / / 156*156 Φ140 4-Φ17 Φ165 4-Φ21
HDM-6 46 50 46 48 Φ165 4-M20 / / 160*160 Φ165 4-Φ22 / /

New Manual Override A B ΦC F T Y H S K Ratio Rated Input Rated Onput
HDM-1 90 55 Φ88 115 44 145 120 53 10 26:1 Nm 250Nm
HDM-2 125 64 Φ110 135 62.5 178 133 56.5 13 28:1 Nm 450Nm
HDM-3 140 71 Φ129 166 70 212 180 68.7 12.5 38:1 Nm 700Nm
HDM-4 188.5 93 Φ174 202 94 280 195 84 15 54:1 Nm 1200Nm
HDM-5 222 110 Φ205 245 110 315 225 92 15 80:1 Nm 2000Nm
HDM-6 252 120 Φ275 280 125 320 252 102 15 78:1 Nm 3000Nm

1.  Question:What is your main products?

   Answer:Our main products are Pneumatic Actuators, Electric Actuators, Actuated Valves And Valve actuators Accessories..
 

2. Question:Are you a trader or manufacturer ?

   Answer: We are the pneumatic actuators and electric actuators manufacturer , we have ability to do the customization products with experienced team, And we have own factory and production line.
 

3. Question:How do your make the quality guarantee for actuators?

   Answer:We have our own quality control system for incoming and outgoing of the materials, every product will be under controlled and tested before delivery to our customer , and we also provide 18 months guarantee ,beside we provide technical supporting .

4.  Question:When can I receive the Price of valve actuators ?

   Answer:We will give the Quotation Within 24 hours after we get your inquiry .Or Your can call or message us if it’s quite urgently.
 

5. Question:How to order our pneumatic actuators and electric actuators ?

   Answer:Please send us your inquiry by Email, , etc. we need to know the following informations before giving the formal Quotation.
1) Product information in details, Quantity, Other requirements
2) Delivery time required
 

6. Question:How can I get a sample to check your quality?

   Answer:Contact with our sales expert to arrange the sample delivery. Please send us the details of the sample before placing the order.
 

7. Question:Shall we pay the sample cost and transportation cost ?

   Answer:We will provide the sample by free of charge. Your will bear the freight cost.
 

8. Question:How long to prepare the sample ?

   Answer:Most of our products are under regular production and some of them we keep in stocks.
 

9. Question:How to delivery the sample to our place?

   Answer:Your can provide your forwarders contacts if any, or we will arrange it for you.
 

10. Question:What about the delivery date if we place the formal order ?

   Answer:Usually it takes 15~20days on the production .We know that on-time delivery is very crucial to our customers to meet dead-lines.
We monitor and expedite our supply chain to ensure that we delivery our products to our customers on-time all the time. /* 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

Installation: Manual
Type: Worm Gear Box
Shaft Material: 45#Steel
Worm Material: Qt400
Transport Package: Foam and Carton Box
Trademark: Hearken
Samples:
US$ 50/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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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

Does a Worm Reducer Require Frequent Maintenance?

Worm reducers generally require less frequent maintenance compared to some other types of gearboxes due to their design and operating characteristics. However, maintenance is still essential to ensure optimal performance and longevity. Here are some key points to consider:

  • Lubrication: Proper lubrication is crucial for worm gearboxes. Regularly check the lubricant level and quality to prevent wear and overheating. Lubricant should be changed as recommended by the manufacturer.
  • Inspections: Periodically inspect the gearbox for signs of wear, damage, or oil leaks. Check for any unusual noises, vibrations, or changes in performance that could indicate a problem.
  • Tightening and Alignment: Check and tighten any loose fasteners and ensure that the gearbox is properly aligned. Misalignment can lead to increased wear and reduced efficiency.
  • Seal Maintenance: Inspect and maintain seals to prevent oil leakage and contaminants from entering the gearbox.
  • Cleaning: Keep the gearbox clean from debris and contaminants that could affect its performance. Regular cleaning can prevent premature wear and damage.
  • Load and Speed: Ensure that the gearbox is operating within its rated load and speed limits. Exceeding these limits can lead to accelerated wear and potential failure.
  • Environmental Conditions: Consider the operating environment of the gearbox. Extreme temperatures, humidity, and other factors can impact the gearbox’s performance and longevity.

While worm gearboxes are known for their durability and self-locking feature, neglecting maintenance can lead to premature wear, reduced efficiency, and potential breakdowns. Following the manufacturer’s recommendations for maintenance intervals and procedures is essential to keep the worm reducer in optimal condition.

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 Professional Hdm Series De-Clutchable Worm Gear Box Manual Override with Handwheel   gearbox adjustment	China Professional Hdm Series De-Clutchable Worm Gear Box Manual Override with Handwheel   gearbox adjustment
editor by CX 2024-02-26