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Koppeling verwijst naar een apparaat dat 2 assen of assen en roterende onderdelen verbindt, samen roteert tijdens de overdracht van beweging en kracht, en niet loskoppelt onder normale omstandigheden. Soms wordt het ook gebruikt als een veiligheidsvoorziening om te voorkomen dat de verbonden onderdelen een te hoge belasting dragen, wat de rol van overbelastingsbeveiliging vervult.
Koppelingen kunnen worden onderverdeeld in starre koppelingen En flexibele koppelingen.
Starre koppelingen hebben geen bufferende eigenschappen en het vermogen om de relatieve verplaatsing van 2 assen te compenseren. Het is vereist dat de 2 assen strikt uitgelijnd zijn. Dergelijke koppelingen zijn echter eenvoudig van structuur, laag in productiekosten, gemakkelijk te monteren en demonteren en te onderhouden, wat kan garanderen dat de 2 assen relatief neutraal zijn, een groot transmissiekoppel hebben en veel worden gebruikt. Veelgebruikte zijn flenskoppelingen, mofkoppelingen en mantelkoppelingen.
Flexibele koppeling kan ook worden onderverdeeld in flexibele koppeling zonder elastisch element en flexibele koppeling met elastisch element. Het eerste type heeft alleen de mogelijkheid om de relatieve verplaatsing van 2 assen te compenseren, maar kan geen trillingen dempen en verminderen. Veelvoorkomende typen zijn onder andere schuifkoppeling, tandwielkoppeling, universele koppeling en kettingkoppeling; het laatste type bevat elastische elementen. Naast de mogelijkheid om de relatieve verplaatsing van 2 assen te compenseren, heeft het ook de functies van buffering en trillingsreductie. Vanwege de sterkte van elastische elementen is het overgebrachte koppel echter over het algemeen inferieur aan dat van flexibele koppelingen zonder elastische elementen. Veelvoorkomende typen zijn onder andere elastische mofpenkoppelingen, elastische penkoppelingen, quincunxkoppelingen, bandkoppelingen, serpentineveerkoppelingen, veerkoppelingen, enz
Koppelingsprestaties
1) Mobiliteit. De beweeglijkheid van de koppeling verwijst naar het vermogen om de relatieve verplaatsing van 2 roterende componenten te compenseren. Factoren zoals productie- en installatiefouten tussen verbonden componenten, temperatuurveranderingen tijdens bedrijf en vervorming onder belasting stellen allemaal CHINAMFG-vereisten voor mobiliteit. De beweeglijke prestatie compenseert of verlicht de extra belasting tussen assen, lagers, koppelingen en andere componenten die wordt veroorzaakt door de relatieve verplaatsing tussen roterende componenten.
(2) Buffering. Voor de gelegenheden waarbij de belasting vaak wordt gestart of de werkbelasting verandert, moet de koppeling worden uitgerust met elastische elementen die de rol van demping en trillingsreductie spelen om de primaire aandrijving en de werkende machine te beschermen tegen weinig of geen schade.
(3) Veilig, betrouwbaar, met voldoende sterkte en levensduur.
(4) Eenvoudige structuur, gemakkelijk te monteren, demonteren en onderhouden.
Hoe kiest u het juiste koppelingstype?
Bij het selecteren van het type koppeling moet u rekening houden met de volgende punten.
1. De omvang en aard van het benodigde transmissiekoppel, de eisen aan buffer- en dempingsfuncties en of er resonantie kan optreden.
2. De relatieve verplaatsing van de assen van de 2 assen wordt veroorzaakt door productie- en montagefouten, asbelasting en thermische uitzettingsvervorming en relatieve beweging tussen componenten.
3. Toegestane totale afmetingen en installatiemethoden, en benodigde werkruimte voor montage, afstelling en onderhoud. Voor grote koppelingen moeten ze gedemonteerd kunnen worden zonder axiale beweging van de as.
Daarnaast moeten ook de werkomgeving, levensduur, smering, afdichting, economie en andere omstandigheden in acht worden genomen. Een geschikt koppelingstype moet worden geselecteerd op basis van de kenmerken van de verschillende koppelingen.
Als u het type niet kunt bepalen, kunt u contact opnemen met onze professionele ingenieur
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Our leading products are mechanical transmission basic parts – couplings, mainly including universal couplings, drum gear couplings, elastic couplings and other 3 categories of more than 30 series of varieties. It is widely used in metallurgical steel rolling, wind power, hydropower, mining, engineering machinery, petrochemical, lifting, paper making, rubber, rail transit, shipbuilding and marine engineering and other industries.
Our factory takes the basic parts of national standards as the benchmark, has more than 40 years of coupling production experience, takes “scientific management, pioneering and innovation, ensuring quality and customer satisfaction” as the quality policy, and aims to continuously provide users with satisfactory products and services. The production is guided by reasonable process, and the ISO9001:2015 quality management system standard is strictly implemented. We adhere to the principle of continuous improvement and innovation of coupling products. In recent years, it has successfully developed 10 national patent products such as SWF cross shaft universal coupling, among which the double cross shaft universal joint has won the national invention patent, SWF cross shaft universal coupling has won the new product award of China's general mechanical parts coupling industry and the ZHangZhoug Province new product science and technology project.
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What are the common materials used in chain couplings?
Chain couplings are commonly made from various materials that offer the necessary strength, durability, and wear resistance required for transmitting torque between shafts. The choice of materials depends on factors such as the application requirements, operating conditions, and the specific design of the coupling. Here are some common materials used in chain couplings:
- Steel: Steel is one of the most widely used materials for chain couplings. It offers excellent strength, toughness, and resistance to wear and fatigue. Carbon steel and alloy steel are commonly used, with alloy steel providing enhanced properties such as higher tensile strength and improved corrosion resistance.
- Stainless Steel: Stainless steel is chosen for chain couplings when corrosion resistance is a critical requirement. It offers good mechanical properties along with resistance to rust and corrosion, making it suitable for applications in harsh environments or where exposure to moisture or chemicals is present.
- Cast Iron: Cast iron is occasionally used for chain couplings, particularly in applications where cost-effectiveness and moderate strength are important factors. Cast iron provides good wear resistance and can withstand moderate loads and operating conditions.
- Bronze: Bronze is utilized in certain specialized chain couplings, especially in applications where self-lubrication and high resistance to corrosion are required. Bronze has good friction properties and can operate in conditions where lubrication may be limited or unavailable.
- Plastics: In some cases, certain plastics, such as nylon or polyurethane, are used for chain coupling components like chain guides or protective covers. Plastics offer low friction, noise reduction, and resistance to chemicals, making them suitable for specific applications.
It's important to note that the materials used in chain couplings may vary depending on the specific manufacturer, coupling design, and application requirements. It is recommended to consult the manufacturer's specifications and guidelines to determine the appropriate materials for a particular chain coupling.
Additionally, in some cases, chain couplings may incorporate a combination of different materials, such as steel for the sprockets and roller chain, and elastomers for the flexible elements. This hybrid construction allows for optimized performance, balancing strength, flexibility, and damping characteristics.
Overall, the selection of materials for chain couplings is crucial to ensure reliable and efficient power transmission while considering factors such as load capacity, operating conditions, and the desired service life of the coupling.
Can chain couplings accommodate angular misalignment?
Yes, chain couplings are designed to accommodate a certain degree of angular misalignment between the connected shafts. Angular misalignment refers to the situation where the axes of the two shafts are not perfectly aligned and form an angle with each other.
Chain couplings are flexible in nature, and their design allows for some degree of angular displacement. The flexibility is primarily provided by the roller chain, which can bend and adjust to a certain extent to accommodate the misalignment. This flexibility helps to reduce the stress on the coupling components and allows for smoother operation even in the presence of angular misalignment.
However, it is important to note that chain couplings have limitations in terms of angular misalignment. Excessive angular misalignment beyond the specified limits can lead to increased stress, accelerated wear, and potential coupling failure. The manufacturer's specifications and guidelines should be followed to ensure that the angular misalignment remains within the acceptable range for the specific chain coupling being used.
Regular inspection and maintenance of the chain coupling are also essential to identify and address any misalignment issues. If significant angular misalignment is detected, corrective measures should be taken, such as realigning the shafts or considering alternative coupling options that are better suited for the specific misalignment requirements.
It is worth mentioning that chain couplings are more tolerant of angular misalignment compared to some other types of couplings, such as rigid or gear couplings. However, it is still important to strive for proper alignment during installation and minimize any excessive misalignment to ensure optimal performance, reliability, and longevity of the chain coupling and the connected machinery or equipment.
What are the applications of chain couplings?
Chain couplings are widely used in various industrial applications where the reliable transmission of power between rotating shafts is required. They offer flexibility, torque capacity, and misalignment compensation, making them suitable for a range of machinery and equipment. Here are some common applications of chain couplings:
- Conveyors: Chain couplings are commonly used in conveyor systems to transfer power from drive motors to conveyor belts, allowing for the movement of materials in industries such as manufacturing, mining, and logistics.
- Mixers and Agitators: Chain couplings find application in mixers and agitators, which are used in industries such as food and beverage, chemical processing, and wastewater treatment. They enable the rotation of mixing blades or paddles, facilitating the blending or agitation of substances.
- Pumps: Chain couplings are utilized in pump systems to connect the pump shaft to the motor shaft. They enable the transfer of rotational energy, allowing pumps to move fluids in applications like water supply, irrigation, and industrial processes.
- Crushers and Crushers: In industries such as mining, construction, and material handling, chain couplings are employed in crushers and crushers to transmit power from electric motors or engines to the crushing or grinding mechanisms, enabling the size reduction of materials.
- Industrial Drives: Chain couplings are used in various industrial drives, including machinery for manufacturing, packaging, and material handling. They provide a reliable connection between motor-driven components such as gearboxes, rollers, and pulleys.
- Fans and Blowers: Chain couplings find application in fan and blower systems, which are used for ventilation, cooling, and air circulation in HVAC systems, industrial processes, and power plants. They facilitate the rotation of fan blades, enabling the movement of air or gases.
- Machine Tools: Chain couplings are utilized in machine tools such as lathes, milling machines, and drills, where the coupling connects the motor or drive spindle to the tool head or workpiece. They enable the transmission of rotational power for machining operations.
- Textile Machinery: Chain couplings are used in textile machinery for processes like spinning, weaving, and knitting. They connect various components such as motors, spindles, and rollers, enabling the movement and processing of textile fibers.
These are just a few examples of the applications of chain couplings. Their versatility and ability to transmit high torque loads while accommodating misalignment make them suitable for a wide range of industries and machinery where the reliable and efficient transmission of power between rotating shafts is essential.
editor by CX 2024-03-01