Product Description
Product Description
YJ-D series part-turn electric type worm gearbox suitable for Ball Valves, Butterfly Valves, Plug Valves,etc.
YJ-D series part-turn electric type worm gearbox has good mechanical quality and steady operating performance. It has high mechanical efficiency, material you can choose according to the open times and electric actuator output speed. The flange connecting to valve is according to ISO5211.
Product Parameters
| Model | YJ-0-D | YJ-1-D | YJ-2-D | YJ-2J-D | YJ-30-D | YJ-3-D | YJ-60-D | YJ-3J-D | YJ-4-D | YJ-100-D | YJ-4J-D | YJ-5-D | YJ-230-D | YJ-5J-D | YJ-6-D | YJ-6J-D | YJ-7-D | YJ-7X-D | YJ-7J-D | YJ-8-D | YJ-8J-D | YJ-9-D | |
| Ratio | 34:1 | 44:1 | 44:1 | 50:1 | 70:1 | 50:1 | 70:1 | 50:1 | 55:1 | 70:1 | 57:1 | 62:1 | 70:1 | 67:1 | 65:1 | 75:1 | 82:1 | 70:1 | 75:1 | 75:1 | 60:1 | 82:1 | |
| Max output torque N.m |
500 | 1200 | 1600 | 3500 | 3000 | 4500 | 6000 | 7500 | 12000 | 10000 | 16500 | 22000 | 23000 | 28000 | 38000 | 48000 | 63000 | 80000 | 100000 | 140000 | 190000 | 250000 | |
| Max stem diameter | 30 | 42 | 50 | 60 | 75 | 60 | 90 | 75 | 90 | 110 | 105 | 110 | 120 | 120 | 120 | 145 | 160 | 180 | 180 | 200 | 220 | 220 | |
| Flange | F10 | F12 | F14 | F16 | F16 | F16 | F25 | F20 | F25 | F30 | F30 | F30 | F35 | F35 | F35 | F40 | F40 | F48 | F48 | F48 | F60 | F60 | |
| φD | 125 | 150 | 175 | 210 | 210 | 210 | 300 | 250 | 300 | 350 | 350 | 350 | 415 | 415 | 415 | 475 | 475 | 560 | 560 | 560 | 686 | 686 | |
| PCD | D0 | 102 | 125 | 140 | 165 | 165 | 165 | 254 | 205 | 254 | 298 | 298 | 298 | 356 | 356 | 356 | 406 | 406 | 483 | 483 | 483 | 603 | 603 |
| N-H-DP | 4-M10-15 | 4-M12-18 | 4-M16-20 | 4-M20-30 | 4-M20-30 | 4-M20-30 | 8-M16-24 | 8-M16-24 | 8-M16- 24 |
8-M20- 30 |
8-M20- 30 |
8-M20- 30 |
8-M30- 45 |
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 |
|
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 |
|---|---|
| Function: | Change Drive Torque |
| Step: | Single-Step |
| Type: | Worm Gear Box |
| Protection Grade: | IP65 (IP67,IP68 Optional) |
| Painting: | Blue, Grey, Black (Customizable) |
| 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.
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:
- 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.
- 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.
- Tighten Bolts and Fasteners: Ensure that all bolts, screws, and fasteners are properly tightened. Loose fasteners can create gaps that allow oil to escape.
- 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.
- 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.
- 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.
- Use Proper Lubricant: Ensure that you’re using the correct lubricant recommended for the gearbox. Using the wrong type of lubricant can cause leaks.
- 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.
- Monitor Leakage: After addressing the issues, monitor the gearbox for any signs of continued leakage. If leakage persists, further investigation may be required.
- 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.
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 2024-02-22