Product Description
Stainless Steel Coupling Gear Rigid Roller Chain Fluid Tyre Grid Jaw Spider HRC Nm Motor Flange Gear Pump Rubber Spline Shaft Flexible Universal Joint Coupling
Product Description
Main products
Coupling refers to a device that connects 2 shafts or shafts and rotating parts, rotates together during the transmission of motion and power, and does not disengage under normal conditions. Sometimes it is also used as a safety device to prevent the connected parts from bearing excessive load, which plays the role of overload protection.
Couplings can be divided into rigid couplings and flexible couplings.
Rigid couplings do not have buffering property and the ability to compensate the relative displacement of 2 axes. It is required that the 2 axes be strictly aligned. However, such couplings are simple in structure, low in manufacturing cost, convenient in assembly and disassembly, and maintenance, which can ensure that the 2 axes are relatively neutral, have large transmission torque, and are widely used. Commonly used are flange coupling, sleeve coupling and jacket coupling.
Flexible coupling can also be divided into flexible coupling without elastic element and flexible coupling with elastic element. The former type only has the ability to compensate the relative displacement of 2 axes, but cannot cushion and reduce vibration. Common types include slider coupling, gear coupling, universal coupling and chain coupling; The latter type contains elastic elements. In addition to the ability to compensate the relative displacement of 2 axes, it also has the functions of buffering and vibration reduction. However, due to the strength of elastic elements, the transmitted torque is generally inferior to that of flexible couplings without elastic elements. Common types include elastic sleeve pin couplings, elastic pin couplings, quincunx couplings, tire type couplings, serpentine spring couplings, spring couplings, etc
Coupling performance
1) Mobility. The movability of the coupling refers to the ability to compensate the relative displacement of 2 rotating components. Factors such as manufacturing and installation errors between connected components, temperature changes during operation and deformation under load all put CHINAMFG requirements for mobility. The movable performance compensates or alleviates the additional load between shafts, bearings, couplings and other components caused by the relative displacement between rotating components.
(2) Buffering. For the occasions where the load is often started or the working load changes, the coupling shall be equipped with elastic elements that play the role of cushioning and vibration reduction to protect the prime mover and the working machine from little or no damage.
(3) Safe, reliable, with sufficient strength and service life.
(4) Simple structure, easy to assemble, disassemble and maintain.
How to select the appropriate coupling type
The following items should be considered when selecting the coupling type.
1. The size and nature of the required transmission torque, the requirements for buffering and damping functions, and whether resonance may occur.
2. The relative displacement of the axes of the 2 shafts is caused by manufacturing and assembly errors, shaft load and thermal expansion deformation, and relative movement between components.
3. Permissible overall dimensions and installation methods, and necessary operating space for assembly, adjustment and maintenance. For large couplings, they should be able to be disassembled without axial movement of the shaft.
In addition, the working environment, service life, lubrication, sealing, economy and other conditions should also be considered, and a suitable coupling type should be selected by referring to the characteristics of various couplings.
If you cannot determine the type, you can contact our professional engineer
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Company Profile
Our Equipments
Main production equipment:
Large lathe, surface grinder, milling machine, gear shaper, spline milling machine, horizontal broaching machine, gear hobbing machine, shaper, slotting machine, bench drilling machine, radial drilling machine, boring machine, band sawing machine, horizontal lathe, end milling machine, crankshaft grinder, CNC milling machine, casting equipment, etc.
Inspection equipment:
Dynamic balance tester, high-speed intelligent carbon and sulfur analyzer, Blochon optical hardness tester, Leeb hardness tester, magnetic yoke flaw detector, special detection, modular fixture (self-made), etc.
Machining equipments
Heat equipment
Our Factory
Application – Photos from our partner customers
Company Profile
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.
Our factory has strong technical force, excellent process equipment, complete professional production equipment, perfect detection means, excellent after-sales service, various products and complete specifications. At the same time, we can provide the design and manufacturing of special non-standard products according to the needs of users. Our products sell well at home and abroad, and are trusted by the majority of users. We sincerely welcome friends from all walks of life at home and abroad to visit and negotiate for common development.p
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Maintenance-Free Fluid Coupling Options
Yes, there are maintenance-free fluid coupling options available in the market. Advances in fluid coupling technology have led to the development of maintenance-free or low-maintenance designs that offer extended service intervals and reduced downtime.
These maintenance-free fluid couplings typically incorporate features that minimize wear and prolong the operating life of the coupling, reducing the need for regular maintenance and lubrication.
Some of the key features and technologies found in maintenance-free fluid couplings include:
- Sealed Design: Maintenance-free fluid couplings often come with a sealed design that prevents the ingress of contaminants and dirt, reducing the risk of internal damage and wear.
- High-Quality Materials: These couplings are constructed using high-quality materials that exhibit excellent durability and resistance to wear, ensuring a longer lifespan.
- Lubrication-Free Operation: Certain maintenance-free fluid couplings utilize special fluid formulations that provide long-lasting lubrication, eliminating the need for frequent fluid changes or refills.
- Robust Bearings: Maintenance-free fluid couplings are equipped with robust bearings that can withstand high loads and operate smoothly without the need for regular maintenance.
- Advanced Monitoring Systems: Some modern fluid couplings are equipped with advanced monitoring and diagnostic systems that provide real-time data on coupling performance, enabling proactive maintenance planning and minimizing unexpected failures.
By opting for a maintenance-free fluid coupling, industries can benefit from reduced maintenance costs, improved reliability, and increased productivity. These couplings are particularly valuable in applications where access to equipment for regular maintenance is challenging or in remote locations where maintenance resources may be limited.
However, it’s essential to note that the specific maintenance requirements may vary depending on the manufacturer and the application. It is advisable to consult with the coupling manufacturer or supplier to select the most suitable maintenance-free fluid coupling based on the operating conditions and requirements of the machinery or equipment.
Special Considerations for Using Fluid Couplings in Explosive Environments
Fluid couplings are widely used in various industrial applications, including those in potentially explosive environments. When considering the use of fluid couplings in such settings, several special considerations must be taken into account to ensure safety and compliance with regulations:
- Explosion-Proof Design: Fluid couplings used in explosive environments must be designed to prevent the ignition of flammable gases or vapors. They should adhere to explosion-proof standards and be equipped with robust seals and protective enclosures to contain any potential sparks or flames.
- Ingress Protection: An appropriate ingress protection (IP) rating is essential to prevent dust, moisture, or other hazardous substances from entering the fluid coupling. A higher IP rating ensures greater protection against potential sources of ignition.
- Material Selection: The choice of materials for the fluid coupling is crucial in explosive environments. Non-sparking or anti-static materials should be used to reduce the risk of ignition caused by friction or electrical discharge.
- Temperature Limitations: Fluid couplings operating in explosive environments must have temperature ratings that prevent overheating and potential ignition of flammable substances. The fluid coupling should be adequately cooled to maintain safe operating temperatures.
- Monitoring and Maintenance: Regular monitoring and maintenance of fluid couplings in explosive environments are essential. Periodic inspections can detect potential issues or wear that could compromise the safety of the coupling. Any maintenance or repair work should be carried out by qualified personnel following safety protocols.
- Compliance with Regulations: Depending on the industry and location, there may be specific regulations and safety standards that govern the use of equipment in explosive atmospheres. It is crucial to adhere to these regulations and ensure that the fluid coupling complies with all relevant safety requirements.
Fluid couplings used in explosive environments play a vital role in ensuring the safe and reliable operation of industrial machinery. By providing smooth and controlled power transmission, fluid couplings can help minimize risks and improve the overall safety of the equipment and personnel in these hazardous settings.
Before implementing fluid couplings in explosive environments, it is essential to conduct a thorough risk assessment and consult with experts familiar with the specific safety requirements of the industry. By taking appropriate safety measures and selecting suitable explosion-proof fluid couplings, the risks associated with using power transmission equipment in hazardous areas can be effectively mitigated.
Principle of Hydrodynamic Fluid Coupling
A hydrodynamic fluid coupling operates on the principle of hydrokinetics, utilizing hydraulic fluid to transmit power between an engine or prime mover and a driven load. The key components of a fluid coupling are the impeller, the turbine, and the housing filled with hydraulic fluid.
Here’s how the principle works:
- Impeller: The impeller is connected to the engine’s crankshaft and is responsible for driving the hydraulic fluid. As the impeller rotates, it creates a flow of fluid within the housing.
- Fluid Flow: The rotational motion of the impeller causes the fluid to move radially outward, towards the housing walls. This generates a high-velocity fluid flow in the housing.
- Turbine: The turbine is connected to the driven load, such as a transmission or machinery input shaft. As the fluid flows onto the blades of the turbine, it causes the turbine to rotate.
- Power Transmission: The kinetic energy of the high-velocity fluid is transferred to the turbine, resulting in the rotation of the driven load. The power transmission is achieved purely through the hydrodynamic effect of the fluid flow.
- Slip: In a fluid coupling, there is always a slight difference in speed (slip) between the impeller and the turbine. This slip is necessary to allow the fluid to accelerate from rest to the speed of the turbine. As a result, the output speed of the driven load is always slightly less than the input speed from the engine.
Hydrodynamic fluid couplings provide several advantages, such as smooth power transmission, overload protection, and torsional vibration dampening. However, they do not provide torque multiplication like torque converters do, making them more suitable for applications where precise speed matching is required.
editor by CX 2024-03-15