Descrizione del prodotto
Model:XW9-R7 Part-turn Manual-Operator Worm Gearbox
Introduction
Part-turn worm gearboxes used for applications such as Ball Valves, Butterfly Valves, Plug Valves, Dampers.
- The maximum out-torque is up to 100,000 Nm
- Input Flange:F16/F25
- Output Flange can be F40/F48/F60
- Max Stem Dia:220 mm
- Max height of stem:265 mm
- Comprehensive gear ratios combined with a selection of spur input- reducers
- Removable output drive sleeves
Characters
1. Totally enclosed gearing with good sealing
2. Ductile cast iron housing, reliable strength
3. Grease filled, increase the service life
4. Optional input structure, flexible input mode
5. Optional ratio of double-stage gearbox, used in a wide range
6. Adjustable angle of output end cap, flexible modes of installation
7. Optional output flange type
8. High performance of tapered roller bearing, can withstand axial and also radial forces
9. Sealed structure, good waterproof effect, can be up to IP68 if required
10. Adjustable stopper, 0 °and 90 °(±5 °adjustable)
Operating Environment
XW series part-turn worm gearbox are with good mechanical quality and steady operating performance which apply to deal with variety climate and temperature. We strive to develop XW series worm gear operator to meet higher demands.
Enclosure: IP67 standard (Optional IP68 as required)
Working Temperature: From -20ºC to 120ºC ( -4ºFto 248ºF)
Painting: Silver grey (Customization)
Connect With Valve
The flange connecting to valve is according to ENISO5210 or DIN3210 (Customization)
(XW9-R7S)
/* 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
| Fare un passo: | Doppio passo |
|---|---|
| Tipo: | Worm Gear Box |
| Protection Level: | IP67 |
| Working Temperature: | -20 to 120 Degrees Celsius |
| Applications: | Ball Valves, Butterfly Valves, Plug Valves, Damper |
| Transport Package: | Plywood Case |
| Personalizzazione: | Disponibile | Richiesta personalizzata |
|---|
Calcolo del rapporto di trasmissione in un riduttore a vite senza fine
Il rapporto di trasmissione di un riduttore a vite senza fine è determinato dal numero di denti della ruota elicoidale (nota anche come ingranaggio a vite senza fine) e dal numero di filettature sull'albero della vite senza fine. La formula del rapporto di trasmissione di un riduttore a vite senza fine è:
Rapporto di trasmissione = Numero di denti sulla ruota elicoidale / Numero di filettature sull'albero elicoidale
Ad esempio, se la ruota elicoidale ha 60 denti e l'albero a vite senza fine ha una filettatura singola, il rapporto di trasmissione sarebbe 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.
Nel calcolo del rapporto di trasmissione, assicurarsi che il riduttore a vite senza fine sia progettato correttamente e che il rapporto di trasmissione sia in linea con le caratteristiche meccaniche desiderate per l'applicazione. Inoltre, nella scelta del rapporto di trasmissione per un riduttore a vite senza fine, è necessario considerare fattori quali efficienza, capacità di carico e limiti di velocità.
Worm Gearbox vs. Helical Gearbox: A Comparison
Worm gearboxes and helical gearboxes are two popular types of gear systems, each with its own set of advantages and disadvantages. Let’s compare them:
| Aspect | Worm Gearbox | Helical Gearbox |
| Efficienza | Lower efficiency due to sliding friction between the worm and worm wheel. | Higher efficiency due to rolling contact between helical gear teeth. |
| Torque Transmission | Excellent torque transmission and high reduction ratios achievable in a single stage. | Good torque transmission, but may require multiple stages for high reduction ratios. |
| Noise and Vibration | Generally higher noise and vibration levels due to sliding action. | Lower noise and vibration levels due to smoother rolling contact. |
| Backlash | Higher inherent backlash due to the design. | Lower backlash due to meshing of helical teeth. |
| Efficiency at Higher Speeds | Less suitable for high-speed applications due to efficiency loss. | More suitable for high-speed applications due to higher efficiency. |
| Overload Protection | Natural self-locking feature provides some overload protection. | May not have the same level of inherent overload protection. |
| Applicazioni | Commonly used for applications requiring high reduction ratios, such as conveyor systems and heavy-duty machinery. | Widely used in various applications including automotive transmissions, industrial machinery, and more. |
Both worm and helical gearboxes have their place in engineering, and the choice between them depends on the specific requirements of the application. Worm gearboxes are preferred for applications with high reduction ratios, while helical gearboxes are chosen for their higher efficiency and smoother operation.
How Does a Worm Gearbox Compare to Other Types of Gearboxes?
Worm gearboxes offer unique advantages and characteristics that set them apart from other types of gearboxes. Here’s a comparison between worm gearboxes and some other common types:
- Helical Gearbox: Worm gearboxes have higher torque multiplication, making them suitable for heavy-load applications, while helical gearboxes are more efficient and offer smoother operation.
- Bevel Gearbox: Worm gearboxes are compact and can transmit motion at right angles, similar to bevel gearboxes, but worm gearboxes have self-locking capabilities.
- Planetary Gearbox: Worm gearboxes provide high torque output and are cost-effective for applications with high reduction ratios, whereas planetary gearboxes offer higher efficiency and can handle higher input speeds.
- Spur Gearbox: Worm gearboxes have better shock load resistance due to their sliding motion, while spur gearboxes are more efficient and suitable for lower torque applications.
- Cycloidal Gearbox: Cycloidal gearboxes have high shock load capacity and compact design, but worm gearboxes are more cost-effective and can handle higher reduction ratios.
While worm gearboxes have advantages such as high torque output, compact design, and self-locking capability, the choice between gearbox types depends on the specific requirements of the application, including torque, efficiency, speed, and space limitations.
editor by CX 2024-01-05