Product Description
Product Description
MY-1-SD series 0~180° worm gearbox suitable for Ball Valves, Butterfly Valves, Plug Valves,etc. Handwheel can choose according to your requirements.
This model we have with adjustable end stops travelling nut principle swing angle 0~180° or without end stop swing angle 270°.
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 | MY-0 -1S-D |
MY-1 -1S-D |
MY-2 -1S-D |
MY-3 -1S-D |
MY-4 -1S-D |
MY-4 -1SZ-D |
MY-5 -1S-D |
MY-5 -1SZ-D |
MY-6 -1S-D |
MY-6 -1SZ-D |
MY-7 -1S-D |
MY-8 -1S-D |
MY-9 -1S-D |
MY-10 -1S-D |
|
| Flange | F12 | F14 | F16 | (F20) | F25 | F25 | F30 | F30 | F35 | F35 | F40 | F48 | F60 | F60 | |
| φD | 150 | 175 | 210 | 250 | 300 | 300 | 350 | 350 | 415 | 415 | 475 | 560 | 686 | 686 | |
| PCD | D0 | 125 | 140 | 165 | 205 | 254 | 254 | 298 | 298 | 356 | 356 | 406 | 483 | 603 | 603 |
| N-H-DP | 4-M12-18 | 4-M16-24 | 4-M20-30 | 8-M16-24 | 8-M16-24 | 8-M16-24 | 8-M20-27 | 8-M20-27 | 8-M30-45 | 8-M30-45 | 8-M36-54 | 12-M36-54 | 20-M36-54 | 20-M36-54 | |
| Convex (D1×h) | 85×3 | 100×4 | 130×5 | 140×5 | 200×5 | 200×5 | 230×5 | 230×5 | 260×5 | 260×5 | 300×8 | 370×8 | 470×8 | 470×8 | |
| Max stem dia. | 38 10×8 |
45 14×9 |
55 16×10 |
65 20×12 |
80 22×14 |
80 22×14 |
105 28×16 |
105 28×16 |
115 32×18 |
115 32×18 |
140 36×20 |
155 40×22 |
200 45×25 |
220 50×28 |
|
| Input shaft | 20 | 20 | 20 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 40 | 40 | 50 | 50 | |
| 6 | 6 | 6 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 12 | 12 | 14 | 14 | ||
| 40 | 40 | 40 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 60 | 60 | 75 | 75 | ||
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.
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| Application: | Industry Valve |
|---|---|
| Function: | Change Drive Torque |
| Step: | Double-Step |
| Type: | Worm Gear Box |
| Operation: | Electric Type |
| Protection Grade: | IP65 (IP67,IP68 Optional) |
| Customization: |
Available
| Customized Request |
|---|
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.
How to Calculate the Efficiency of a Worm Gearbox
Calculating the efficiency of a worm gearbox involves determining the ratio of output power to input power. Efficiency is a measure of how well the gearbox converts input power into useful output power without losses. Here’s how to calculate it:
- Step 1: Measure Input Power: Measure the input power (Pin) using a power meter or other suitable measuring equipment.
- Step 2: Measure Output Power: Measure the output power (Pout) that the gearbox is delivering to the load.
- Step 3: Calculate Efficiency: Calculate the efficiency (η) using the formula: Efficiency (η) = (Output Power / Input Power) * 100%
For example, if the input power is 1000 watts and the output power is 850 watts, the efficiency would be (850 / 1000) * 100% = 85%.
It’s important to note that efficiencies can vary based on factors such as gear design, lubrication, wear, and load conditions. The calculated efficiency provides insight into how effectively the gearbox is converting power, but it’s always a good practice to refer to manufacturer specifications for gearbox efficiency ratings.
What is a Worm Gearbox and How Does It Work?
A worm gearbox, also known as a worm gear reducer, is a mechanical device used to transmit rotational motion and torque between non-parallel shafts. It consists of a worm screw and a worm wheel, both of which have helical teeth. The worm screw resembles a threaded cylinder, while the worm wheel is a gear with teeth that mesh with the worm screw.
The working principle of a worm gearbox involves the interaction between the worm screw and the worm wheel. When the worm screw is rotated, its helical teeth engage with the teeth of the worm wheel. As the worm screw rotates, it translates the rotational motion into a perpendicular motion, causing the worm wheel to rotate. This perpendicular motion allows the worm gearbox to achieve a high gear reduction ratio, making it suitable for applications that require significant speed reduction.
One of the key features of a worm gearbox is its ability to provide a high gear reduction ratio in a compact design. However, due to the sliding nature of the meshing teeth, worm gearboxes may exhibit higher friction and lower efficiency compared to other types of gearboxes. Therefore, they are often used in applications where efficiency is not the primary concern but where high torque and speed reduction are essential, such as conveyor systems, elevators, automotive steering systems, and certain industrial machinery.
editor by CX 2024-03-08