Descrição do produto
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)
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| Etapa: | Passo Duplo |
|---|---|
| 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 |
| Personalização: | Disponível | Solicitação personalizada |
|---|
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.
Caixa de engrenagens sem-fim versus caixa de engrenagens helicoidais: uma comparação
As caixas de engrenagens sem-fim e as caixas de engrenagens helicoidais são dois tipos populares de sistemas de engrenagens, cada uma com suas próprias vantagens e desvantagens. Vamos compará-las:
| Aspecto | Caixa de engrenagens sem-fim | Caixa de Engrenagens Helicoidais |
| Eficiência | Menor eficiência devido ao atrito de deslizamento entre o parafuso sem-fim e a roda dentada. | Maior eficiência devido ao contato de rolamento entre os dentes da engrenagem helicoidal. |
| Transmissão de Torque | Excelente transmissão de torque e altas relações de redução alcançáveis em um único estágio. | Boa transmissão de torque, mas pode exigir múltiplos estágios para relações de redução elevadas. |
| Ruído e vibração | Geralmente, os níveis de ruído e vibração são mais elevados devido ao movimento de deslizamento. | Níveis de ruído e vibração mais baixos devido a um contato de rolamento mais suave. |
| Retaliação | Maior reação intrínseca devido ao projeto. | Menor folga devido ao encaixe dos dentes helicoidais. |
| Eficiência em velocidades mais altas | Menos adequado para aplicações de alta velocidade devido à perda de eficiência. | Mais adequado para aplicações de alta velocidade devido à maior eficiência. |
| Proteção contra sobrecarga | O recurso de travamento automático natural oferece alguma proteção contra sobrecarga. | Pode não ter o mesmo nível de proteção inerente contra sobrecarga. |
| Aplicações | Comumente utilizado em aplicações que exigem altas taxas de redução, como sistemas de transporte e máquinas pesadas. | Amplamente utilizado em diversas aplicações, incluindo transmissões automotivas, máquinas industriais e muito mais. |
Tanto as caixas de engrenagens sem-fim quanto as helicoidais têm seu lugar na engenharia, e a escolha entre elas depende dos requisitos específicos da aplicação. As caixas de engrenagens sem-fim são preferidas para aplicações com altas relações de redução, enquanto as caixas de engrenagens helicoidais são escolhidas por sua maior eficiência e operação mais suave.
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