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. /* 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(/(.*?):(.*)$/))&&1
| Application: | Motor |
|---|---|
| Function: | Change Drive Direction, Speed Changing |
| Layout: | Coaxial |
| Hardness: | Soft Tooth Surface |
| Installation: | Torque Arm Type |
| Step: | Double-Step |
| Samples: |
US$ 50/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
Is it Possible to Reverse the Direction of a Worm Gearbox?
Yes, it is possible to reverse the direction of a worm gearbox by changing the orientation of either the input or output shaft. However, reversing the direction of a worm gearbox can have some implications that need to be considered:
- Efficiency: Reversing the direction of a worm gearbox can potentially affect its efficiency. Worm gearboxes are typically more efficient in one direction of rotation due to the design of the worm and worm wheel.
- Backlash: Reversing the direction of rotation might lead to increased backlash or play in the gearbox, which can impact precision and smooth operation.
- Lubrication: Depending on the gearbox’s design, reversing the direction could affect lubrication distribution and lead to uneven wear on the gear teeth.
- Load: Reversing the direction might also impact the gearbox’s load-carrying capacity, especially if it’s designed for predominantly one-way operation.
- Noise and Vibration: Direction reversal can sometimes result in increased noise and vibration due to changes in gear engagement and meshing behavior.
If you need to reverse the direction of a worm gearbox, it’s advisable to consult the gearbox manufacturer’s guidelines and recommendations. They can provide insights into whether the specific gearbox model is suitable for reversible operation and any precautions or adjustments needed to ensure proper functioning.
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.
Can a Worm Gearbox Provide High Torque Output?
Yes, a worm gearbox is capable of providing high torque output due to its unique design and principle of operation. Worm gears are known for their high torque multiplication capabilities, making them suitable for applications that require significant torque transfer.
The torque output of a worm gearbox is influenced by several factors:
- Lead Angle: The lead angle of the worm affects the mechanical advantage of the gear system. A larger lead angle can result in higher torque output.
- Worm Diameter: A larger diameter worm can offer increased torque output as it provides more contact area with the gear.
- Gear Ratio: The gear ratio between the worm and the gear determines the torque multiplication factor. A higher gear ratio leads to higher torque output.
- Lubrication: Proper lubrication is essential to minimize friction and ensure efficient torque transmission.
- Material and Quality: High-quality materials and precision manufacturing contribute to the gearbox’s ability to handle high torque loads.
Due to their ability to provide high torque output in a compact form factor, worm gearboxes are commonly used in various industrial applications, including heavy machinery, construction equipment, conveyor systems, and more.
editor by CX 2024-03-30