Description du produit
Description du produit
NM coupling extensively used in compressors, diesel engine drives, pumps, conveyors, and many other drive units.
NM coupling consists of 2 hubs and flexible ring able to compensate all type of shaft misalignments.The flexible rings are made of Nitile rubber(NBR) which have a high internal damping characteristic which enable to absorb and dampen torsional vibrations,operate effectively in temperature range of -40~+100.
Size avalible from: 50,67,82,97,112,128,148,168,194,214,240,265.
NM coupling characteristics:Quiet and smooth operation.Easy installation and maintenance free. Available to machine with high torque and intermittent operation.
Applications
NM couplings are offered in the industry’s largest variety of stock bore/keyway combinations. These couplings require no lubrication and provide highly reliable service for light, medium, and heavy duty electrical motor and internal combustion power transmission applications. Applications include power transmission to industrial equipment such as pumps, gear boxes, compressors, blowers, mixers, and conveyors.
Photos détaillées
Paramètres du produit
Emballage et expédition
Profil de l'entreprise
ZheJiang Mighty Machinery Co., Ltd. specializes in manufacturing Mechanical Power Transmission Products.We Mighty is the division/branch of SCMC Group, which is a wholly state-owned company, established in 1980.
About Mighty:
-3 manufacturing factories, we have 5 technical staff, our FTY have strong capacity for design and process design, and more than 70 workers and double shift eveyday.
-Large quality of various material purchase and stock in warhouse which ensure the low cost for the material and production in time.
-Strick quality control are apply in the whole production.
we have incoming inspection,process inspection and final production inspection which can ensure the perfect of the goods quality.
-14 years of machining experience. Long time cooperate with the Global Buyer, make us easy to understand the csutomer and handle the export. MIGHTY’s products are mainly exported to Europe, America and the Middle East market. With the top-ranking management, professional technical support and abundant export experience, MIGHTY has established lasting and stable business partnership with many world famous companies and has got good reputation from CHINAMFG customers in international sales.
| Standard ou non standard : | Standard |
|---|---|
| Trou d'arbre : | Personnalisé |
| Diamètre d'alésage : | Personnalisé |
| Structure: | Flexible |
| Matériel: | Steel, Stainless Steel, Cast Iron |
| Contrôle de qualité: | 100% Inspection |
| Exemples : |
US$ 1/Pièce
1 pièce (commande minimale) | |
|---|
| Personnalisation : |
Disponible
| Demande personnalisée |
|---|
Existe-t-il des considérations de sécurité à prendre en compte lors de l'utilisation d'accouplements flexibles dans les machines tournantes ?
Oui, plusieurs précautions de sécurité sont à prendre en compte lors de l'utilisation d'accouplements flexibles dans les machines tournantes. Bien que les accouplements flexibles offrent de nombreux avantages en termes de compensation des défauts d'alignement, d'isolation des vibrations et d'absorption des chocs, une utilisation ou un entretien incorrects peuvent engendrer des risques pour la sécurité. Voici quelques précautions importantes à prendre en compte :
- Installation correcte : Veillez à installer correctement et solidement l'accouplement flexible en suivant les instructions du fabricant. Une installation incorrecte peut entraîner une défaillance de l'accouplement, un débranchement inattendu ou l'éjection de ses composants, ce qui peut endommager l'équipement ou blesser le personnel.
- Alignement: Un alignement correct des arbres est essentiel au fonctionnement fiable et sûr des accouplements flexibles. Un mauvais alignement peut engendrer des contraintes excessives sur l'accouplement et les composants qui y sont rattachés, provoquant une usure prématurée et un risque de défaillance. Il est donc impératif de vérifier et de maintenir régulièrement l'alignement des arbres afin de prévenir tout risque pour la sécurité.
- Conditions de fonctionnement : Lors du choix d'un accouplement flexible, il convient de tenir compte des conditions environnementales et de fonctionnement de la machine. Certains accouplements sont conçus pour des plages de température spécifiques, des environnements dangereux ou des atmosphères corrosives. L'utilisation d'un accouplement inadapté aux conditions de fonctionnement peut compromettre la sécurité et les performances.
- Limites de couple et de vitesse : Utilisez toujours l'accouplement flexible dans les limites de couple et de vitesse spécifiées. Le dépassement de ces limites peut entraîner une défaillance de l'accouplement, provoquant des arrêts de production imprévus, des dommages matériels et des risques potentiels pour la sécurité.
- Entretien: Inspectez et entretenez régulièrement l'accouplement flexible afin d'assurer son bon fonctionnement et sa sécurité. Vérifiez l'absence de signes d'usure, de dommages ou de corrosion et remplacez rapidement toute pièce usée ou endommagée par une pièce d'origine du fabricant.
- Mécanisme d'arrêt d'urgence : Dans les applications où la sécurité est primordiale, envisagez la mise en œuvre d'un mécanisme d'arrêt d'urgence permettant d'interrompre rapidement le fonctionnement de la machine en cas de défaillance de l'accouplement ou d'autres situations d'urgence.
- Équipement de protection individuelle (EPI) : Lors de travaux sur des machines tournantes ou lors d'opérations de maintenance impliquant des accouplements, le personnel doit porter un équipement de protection individuelle approprié, tel que des gants, des lunettes de protection et des vêtements résistants aux risques d'enchevêtrement.
- Formation et sensibilisation : S'assurer que le personnel travaillant avec les machines comprenne les risques potentiels liés aux accouplements flexibles et reçoive une formation adéquate sur les procédures de manipulation, d'installation et d'entretien en toute sécurité.
En respectant ces consignes de sécurité, les opérateurs et le personnel de maintenance peuvent atténuer les risques potentiels et garantir le fonctionnement sûr et fiable des machines tournantes à accouplements flexibles. De plus, il est essentiel de se conformer aux normes et réglementations de sécurité applicables au secteur et à l'application afin de garantir un environnement de travail sûr.
Can flexible couplings be used for both motor-to-shaft and shaft-to-shaft connections?
Yes, flexible couplings can be used for both motor-to-shaft and shaft-to-shaft connections in various applications. The versatility of flexible couplings allows them to adapt to different types of connections and meet the specific requirements of the system.
Motor-to-Shaft Connections:
When connecting a motor to a shaft, a flexible coupling serves as an intermediary component that joins the motor shaft and the driven shaft. Flexible couplings are commonly used in motor-driven systems to accommodate misalignment between the motor and the driven load. In motor applications, flexible couplings help reduce stress and wear on the motor bearings, thus extending the motor’s life and enhancing overall system reliability. They also act as vibration dampeners, minimizing vibrations transmitted from the motor to the driven shaft, and subsequently to connected equipment, ensuring smoother operation.
Shaft-to-Shaft Connections:
In many mechanical systems, such as those in the manufacturing, automation, and power transmission industries, shaft-to-shaft connections are required. A flexible coupling can bridge the gap between two shafts and transmit torque while accommodating misalignment. This type of coupling is commonly used to connect shafts that are not perfectly aligned due to factors like manufacturing tolerances, thermal expansion, or foundation settling. By allowing for misalignment, the flexible coupling protects the connected components from excessive stresses and ensures efficient power transmission.
Versatility and Advantages:
The ability of flexible couplings to handle both motor-to-shaft and shaft-to-shaft connections makes them versatile solutions for a wide range of industrial applications. Some of the advantages of using flexible couplings in these connections include:
- Minimizing stress and wear on connected components, such as bearings and seals.
- Compensating for misalignment, ensuring smooth power transmission.
- Damping vibrations and shock loads, reducing the risk of mechanical failures.
- Protecting equipment from excessive forces, enhancing system reliability.
- Simplifying installation and alignment procedures, reducing downtime.
- Improving overall system performance and operational efficiency.
Applications :
Flexible couplings find applications in a wide range of industries, including manufacturing, material handling, automotive, aerospace, robotics, and more. Whether connecting a motor to a shaft or joining two shafts directly, flexible couplings play a crucial role in enhancing the reliability and efficiency of rotating machinery and mechanical systems.
In conclusion, flexible couplings can effectively serve as connectors for both motor-to-shaft and shaft-to-shaft connections, providing essential misalignment compensation and protection for connected equipment in various industrial applications.
What is a flexible coupling and how does it work?
A flexible coupling is a mechanical device used to connect two shafts while allowing for relative movement between them. It is designed to transmit torque from one shaft to another while compensating for misalignment, vibration, and shock. Flexible couplings are essential components in various rotating machinery and systems, as they help protect the connected equipment and enhance overall performance.
Types of Flexible Couplings:
There are several types of flexible couplings, each with its unique design and characteristics. Some common types include:
- Accouplements à mâchoires : Jaw couplings feature elastomer spiders that fit between two hubs. They can accommodate angular and parallel misalignment while dampening vibrations.
- Accouplements à disque : Disc couplings use thin metallic discs to connect the shafts. They are highly flexible and provide excellent misalignment compensation.
- Accouplements d'engrenages : Gear couplings use gear teeth to transmit torque. They offer high torque capacity and can handle moderate misalignment.
- Accouplements de poutres : Beam couplings use a single piece of flexible material, such as a metal beam, to transmit torque while compensating for misalignment.
- Accouplements à soufflets : Bellows couplings use a bellows-like structure to allow for axial, angular, and parallel misalignment compensation.
- Accouplements Oldham : Oldham couplings use three discs, with the middle one having a perpendicular slot to allow for misalignment compensation.
How a Flexible Coupling Works:
The operation of a flexible coupling depends on its specific design, but the general principles are similar. Let’s take the example of a jaw coupling to explain how a flexible coupling works:
- Two shafts are connected to the coupling hubs on either side, with an elastomer spider placed between them.
- When torque is applied to one shaft, it causes the spider to compress and deform slightly, transmitting the torque to the other shaft.
- In case of misalignment between the shafts, the elastomer spider flexes and compensates for the misalignment, ensuring smooth torque transmission without imposing excessive loads on the shafts or connected equipment.
- The elastomer spider also acts as a damping element, absorbing vibrations and shocks during operation, which reduces wear on the equipment and enhances system stability.
Overall, the flexibility and ability to compensate for misalignment are the key features that allow a flexible coupling to function effectively. The choice of a specific flexible coupling type depends on the application’s requirements, such as torque capacity, misalignment compensation, and environmental conditions.
editor by CX 2023-10-05
