Descrição do produto
ISO9001-2015 Approval Plastic Worm Gear with plastic pa66 pom delrin material
Gear transmission relies on the thrust between gear teeth to transmit motion and power, also known as meshing transmission. With this gradual meshing, helical gears operate much more smoothly and quietly than spur gears. Therefore, almost all automobile transmissions use helical gears.Since the teeth on the helical gear present a certain angle, the gears will be under a certain amount of stress when they mesh. Equipment using helical gears is equipped with bearings to withstand this pressure.
Parâmetros do produto
| Nome do produto | Spur Gear & Helical Gear & Gear Shaft |
| Customized service | OEM, drawings or samples customize |
| Materiais disponíveis | Stainless Steel, Carbon Steel, S45C, SCM415, 20CrMoTi, 40Cr, Brass, SUS303/304, Bronze, Iron, Aluminum Alloy etc |
| Tratamento térmico | Têmpera e revenido, cementação e têmpera, endurecimento por alta frequência, carbonitretação… |
| Tratamento de superfície | Conditioning, Carburizing and Quenching,Tempering ,High frequency quenching, Tempering, Blackening, QPQ, Cr-plating, Zn-plating, Ni-plating, Electroplate, Passivation, Picking, Plolishing, Lon-plating, Chemical vapor deposition(CVD), Physical vapour deposition(PVD)… |
| BORE | Furo acabado, Furo piloto, Pedido especial |
| Método de processamento | Molding, Shaving, Hobbing, Drilling, Tapping, Reaming, Manual Chamfering, Grinding etc |
| Ângulo de pressão | 20 graus |
| Dureza | 55- 60HRC |
| Tamanho | Desenhos do cliente e norma ISO |
| Pacote | Caixa/contêiner de madeira e palete, ou fabricado sob encomenda. |
| Certificado | ISO9001:2008 |
| Processo de usinagem | Gear Hobbing, Gear Milling, Gear Shaping, Gear Broaching, Gear Shaving, Gear Grinding and Gear Lapping |
| Aplicações | Printing Equipment Industry, Laser Equipment Industry, Automated Assemblyline Industry, Woodening Industry, Packaging Equipment Industry, Logistics storage Machinery Industry, Robot Industry, Machine Tool Equipment Industry |
perfil de companhia
Embalagem e envio
| Embalagem | Polyethylene bag or oil paper for each item; Pile on carton or as customer’s demand |
| Delivery of Samples | Por DHL, FedEx, UPS, TNT, EMS |
| Tempo de espera | 10-15 working days as usual, 30days in busy season, it will based on the detailed order quantity. |
Perguntas frequentes
| Principais mercados? | North America, South America, Eastern Europe , West Europe , North Europe, South Europe, Asia |
| How to order? | * You send us drawing or sample |
| * We carry through project assessment | |
| * We give you our design for your confirmation | |
| * We make the sample and send it to you after you confirmed our design | |
| * You confirm the sample then place an order and pay us 30% deposit | |
| * We start producing | |
| * When the goods is done, you pay us the balance after you confirmed pictures or tracking numbers. | |
| * Trade is done, thank you!! |
| Aplicativo: | Motorcycle, Machinery, Agricultural Machinery, Machinery Parts |
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| Dureza: | Endurecido |
| Posição da marcha: | Engrenagem externa |
| Método de fabricação: | Rolling Gear |
| Formato da porção dentada: | Bevel Wheel |
| Material: | Plástico |
| Exemplos: |
US$ 10 unidades
1 unidade (pedido mínimo) | |
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| Personalização: |
Disponível
| Solicitação personalizada |
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Can you provide examples of machinery that use worm gears?
Worm gears are utilized in various machinery and mechanical systems where precise motion control, high gear reduction ratios, and self-locking capabilities are required. Here are some examples of machinery that commonly use worm gears:
- Elevators: Worm gears are commonly employed in elevator systems to control the vertical movement of the elevator car. The high gear reduction ratio provided by worm gears allows for smooth and controlled lifting and lowering of heavy loads.
- Conveyor systems: Worm gears are used in conveyor systems to drive the movement of belts or chains. The self-locking nature of worm gears helps prevent the conveyor from back-driving when the power is turned off, ensuring that the materials or products being transported stay in place.
- Automotive applications: Worm gears can be found in automotive steering systems. They are often used in the steering gearboxes to convert the rotational motion of the steering wheel into lateral movement of the vehicle’s wheels. Worm gears provide mechanical advantage and precise control for steering operations.
- Milling machines: Worm gears are utilized in milling machines to control the movement of the worktable or the spindle. They offer high torque transmission and accurate positioning, facilitating precise cutting and shaping of materials during milling operations.
- Lifts and hoists: Worm gears are commonly employed in lifting and hoisting equipment, such as cranes and winches. Their high gear reduction ratio allows for the lifting of heavy loads with minimal effort, while the self-locking property prevents the load from descending unintentionally.
- Rotary actuators: Worm gears are used in rotary actuators to convert linear motion into rotary motion. They are employed in various applications, including valve actuators, robotic arms, and indexing mechanisms, where controlled and precise rotational movement is required.
- Packaging machinery: Worm gears find application in packaging machinery, such as filling machines and capping machines. They assist in controlling the movement of conveyor belts, rotating discs, or cam mechanisms, enabling accurate and synchronized packaging operations.
- Printing presses: Worm gears are utilized in printing presses to control the paper feed and the movement of the printing plates. They provide precise and consistent motion, ensuring accurate registration and alignment of the printed images.
These are just a few examples, and worm gears can be found in many other applications, including machine tools, textile machinery, food processing equipment, and more. The unique characteristics of worm gears make them suitable for various industries where motion control, high torque transmission, and self-locking capabilities are essential.
What are the potential challenges in designing and manufacturing worm gears?
Designing and manufacturing worm gears can present several challenges due to their unique characteristics and operating conditions. Here’s a detailed explanation of the potential challenges involved:
- Complex geometry: Worm gears have complex geometry with helical threads on the worm shaft and corresponding teeth on the worm wheel. Designing the precise geometry of the gear teeth, including the helix angle, lead angle, and tooth profile, requires careful analysis and calculation to ensure proper meshing and efficient power transmission.
- Gear materials and heat treatment: Selecting suitable materials for worm gears is critical to ensure strength, wear resistance, and durability. The materials must have good friction and wear properties, as well as the ability to withstand the sliding and rolling contact between the worm and the worm wheel. Additionally, heat treatment processes such as carburizing or induction hardening may be necessary to enhance the gear’s surface hardness and improve its load-carrying capacity.
- Lubrication and cooling: Worm gears operate under high contact pressures and sliding velocities, resulting in significant heat generation and lubrication challenges. Proper lubrication is crucial to reduce friction, wear, and heat buildup. Ensuring effective lubricant distribution to all contact surfaces, managing lubricant temperature, and providing adequate cooling mechanisms are important considerations in worm gear design and manufacturing.
- Backlash control: Controlling backlash, which is the clearance between the worm and the worm wheel, is crucial for precise motion control and positional accuracy. Designing the gear teeth and adjusting the clearances to minimize backlash while maintaining proper tooth engagement is a challenge that requires careful consideration of factors such as gear geometry, tolerances, and manufacturing processes.
- Manufacturing accuracy: Achieving the required manufacturing accuracy in worm gears can be challenging due to their complex geometry and tight tolerances. The accurate machining of gear teeth, maintaining proper tooth profiles, and achieving the desired surface finish require advanced machining techniques, specialized tools, and skilled operators.
- Noise and vibration: Worm gears can generate noise and vibration due to the sliding contact between the gear teeth. Designing the gear geometry, tooth profiles, and surface finishes to minimize noise and vibration is a challenge. Additionally, the selection of appropriate materials, lubrication methods, and gear housing design can help reduce noise and vibration levels.
- Efficiency and power loss: Worm gears inherently have lower efficiency compared to other types of gear systems due to the sliding contact and high gear ratios. Minimizing power loss and improving efficiency through optimized gear design, material selection, lubrication, and manufacturing accuracy is a challenge that requires careful balancing of various factors.
- Wear and fatigue: Worm gears are subjected to high contact stresses and cyclic loading, which can lead to wear, pitting, and fatigue failure. Designing the gear teeth for proper load distribution, selecting appropriate materials, and applying suitable surface treatments or coatings are essential to mitigate wear and fatigue issues.
- Cost considerations: Designing and manufacturing worm gears can be cost-intensive due to the complexity of the gear geometry, material requirements, and precision manufacturing processes. Balancing performance requirements with cost considerations is a challenge that requires careful evaluation of the gear’s intended application, performance expectations, and budget constraints.
Addressing these challenges requires a comprehensive understanding of gear design principles, manufacturing processes, material science, and lubrication technologies. Collaboration between design engineers, manufacturing experts, and material specialists is often necessary to overcome these challenges and ensure the successful design and production of high-quality worm gears.
Você pode explicar o conceito de rosca sem-fim e roda dentada em uma engrenagem helicoidal?
Em um sistema de engrenagem helicoidal, o parafuso sem-fim e a roda dentada são os dois componentes principais que trabalham juntos para transmitir movimento e potência. Aqui está uma explicação do conceito:
Minhoca:
O sem-fim é um eixo cilíndrico com uma rosca helicoidal enrolada ao seu redor. Ele se assemelha a um parafuso com uma ranhura espiral. A rosca helicoidal é chamada de rosca do sem-fim ou rosca helicoidal. O sem-fim é o componente motriz no sistema de engrenagem helicoidal.
Quando o parafuso sem-fim gira, a rosca helicoidal engata nos dentes da engrenagem sem-fim, fazendo com que esta gire. O ângulo da rosca helicoidal cria um efeito de cunha contra os dentes da engrenagem sem-fim, resultando em uma alta relação de redução de engrenagem.
Uma característica importante da rosca sem-fim é sua capacidade de autotravamento. Devido ao ângulo da rosca helicoidal, a rosca sem-fim pode acionar a roda dentada, mas o inverso não é verdadeiro. A característica de autotravamento impede que a roda dentada acione a rosca sem-fim na direção oposta, proporcionando um freio mecânico ou uma posição de retenção no sistema.
O parafuso sem-fim pode ser feito de diversos materiais, como aço, bronze ou até mesmo plástico, dependendo dos requisitos da aplicação. Geralmente, ele é montado em um eixo e apoiado por rolamentos para uma rotação suave.
Roda sem-fim:
A roda sem-fim, também conhecida como engrenagem helicoidal, é o componente acionado no sistema de engrenagem helicoidal. Trata-se de uma engrenagem com dentes que se encaixam na rosca helicoidal do sem-fim. Os dentes da roda sem-fim são tipicamente helicoidais e cortados para corresponder ao ângulo e ao passo da rosca do sem-fim.
À medida que o parafuso sem-fim gira, sua rosca helicoidal engata nos dentes da engrenagem sem-fim, fazendo com que esta gire. A rotação da engrenagem sem-fim ocorre no mesmo sentido da rotação do parafuso sem-fim, mas a velocidade é significativamente reduzida devido à alta relação de redução do sistema de engrenagem sem-fim.
A engrenagem sem-fim geralmente possui um diâmetro maior em comparação com o parafuso sem-fim, permitindo uma relação de redução de engrenagem mais elevada. Ela pode ser fabricada em materiais como aço, bronze ou ferro fundido, dependendo dos requisitos de torque e durabilidade da aplicação.
Em conjunto, o parafuso sem-fim e a coroa formam um sistema de engrenagens compacto e eficiente que proporciona alta redução de velocidade e capacidade de travamento automático. São comumente utilizados em diversas aplicações que exigem controle preciso de movimento, alto torque e tamanho compacto, como elevadores, sistemas de direção e máquinas-ferramenta.
editor by CX 2023-09-26
