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
Related products
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
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
Role of Fluid Couplings in Heavy-Duty Mining Equipment
Fluid couplings play a critical role in heavy-duty mining equipment, offering several advantages that enhance the performance, safety, and longevity of the machinery:
- Soft Start: In mining applications, where large equipment like crushers, conveyors, and draglines are involved, fluid couplings provide a soft start to the motor, gradually ramping up the torque and reducing the shock and stress on the drivetrain. This ensures smoother equipment startup and prevents sudden power demand spikes.
- Torque Limiting: Fluid couplings act as torque limiters, protecting the equipment from sudden overloads and torque surges during operations. This feature prevents damage to the motor, gearbox, and driven components, thus increasing the reliability and lifespan of the equipment.
- Load Distribution: In mining equipment with multiple driven components or motors, fluid couplings enable efficient load distribution among the components. This ensures that each component shares the load appropriately, preventing uneven wear and improving overall system efficiency.
- Overload Protection: The inherent slip feature of fluid couplings allows them to slip at high loads, providing overload protection to the equipment. In case of unexpected jams or blockages in conveyor belts or crushers, the fluid coupling can slip, preventing costly damage to the equipment.
- Vibration Damping: Mining operations can generate significant vibrations that can be damaging to the equipment. Fluid couplings help dampen vibrations, reducing stress on the components and minimizing wear and tear.
- Reduced Maintenance: By preventing sudden torque surges and overloads, fluid couplings reduce the need for frequent maintenance and repairs, saving both time and money for mining operators.
Heavy-duty mining equipment operates in harsh and challenging environments with high loads and abrasive materials. Fluid couplings used in mining applications are designed to be robust, durable, and resistant to contaminants like dust and water.
Overall, fluid couplings play a vital role in ensuring the efficient and reliable operation of heavy-duty mining equipment, contributing to increased productivity and reduced downtime in mining operations.
Fluid Couplings for Soft-Start Applications in Conveyor Systems
Yes, fluid couplings are well-suited for soft-start applications in conveyor systems. Soft-starting is the gradual acceleration of the conveyor belt to reduce sudden mechanical stress and current spikes during startup. Fluid couplings provide a smooth and controlled method of power transmission, making them ideal for achieving soft-start capabilities in conveyor systems.
When a conveyor system equipped with a fluid coupling starts, the fluid inside the coupling initially acts as a viscous medium, allowing the input and output shafts to rotate at different speeds. As the fluid coupling fills with fluid, it gradually transmits torque and smoothly accelerates the conveyor belt.
One of the significant advantages of using fluid couplings for soft-start applications is that they provide adjustable startup times. By controlling the amount of fluid inside the coupling, the startup acceleration rate can be precisely tuned to match the specific requirements of the conveyor system.
The soft-start feature offered by fluid couplings helps in several ways:
- Mechanical Stress Reduction: The gradual acceleration minimizes mechanical stress on the conveyor belt, pulleys, and other components, leading to extended equipment life and reduced maintenance costs.
- Energy Savings: Soft-starting prevents sudden current spikes and reduces the power demand during startup, resulting in energy savings and improved efficiency.
- Improved Conveyor Belt Life: By avoiding abrupt starts, the wear and tear on the conveyor belt are reduced, leading to longer belt life and decreased downtime.
- Enhanced Conveyor Control: Soft-start capabilities enable better control over the conveyor system, allowing operators to optimize the material flow and prevent product spillage or jamming.
Fluid couplings offer reliable and cost-effective soft-start solutions for conveyor systems across various industries, including mining, manufacturing, and material handling. They are particularly beneficial when dealing with heavy loads or long conveyor belts, where the avoidance of sudden shock loads is critical.
In summary, fluid couplings are a popular choice for soft-start applications in conveyor systems due to their smooth and controlled power transmission, adjustable startup times, and the ability to reduce mechanical stress and energy consumption during startup.
Improvement of Starting Performance in Large Machines with Fluid Couplings
Fluid couplings play a crucial role in enhancing the starting performance of large machines, especially those with high inertia loads. Here’s how a fluid coupling achieves this improvement:
- Smooth Startup: When a machine equipped with a fluid coupling starts, the input shaft begins to rotate, and the impeller starts to churn the fluid inside the coupling. This action creates a hydrodynamic torque transfer between the impeller and the turbine. As the fluid circulates and builds up torque, the output shaft begins to accelerate smoothly without any sudden jolts or shocks.
- Inertia Compensation: In large machines, the rotating mass and initial resistance to motion can be significant. The fluid coupling’s ability to transmit torque gradually allows it to compensate for the inertia of the driven load. This means that even with heavy loads, the fluid coupling can slowly bring the machine up to its operating speed without subjecting the mechanical components to excessive stress.
- Overload Protection: During startup, if the machine encounters an unexpected overload or jam, the fluid coupling provides a level of protection. The fluid coupling will slip, limiting the torque transmitted to the output shaft, thus preventing damage to the machine and associated components.
- Reduction of Electrical Stress: In machines powered by electric motors, the use of a fluid coupling reduces the electrical stress during startup. As the fluid coupling gradually accelerates the load, it prevents abrupt spikes in electrical current, resulting in a smoother and controlled power draw from the electrical supply.
By offering smooth startup, inertia compensation, overload protection, and reduced electrical stress, a fluid coupling significantly improves the starting performance of large machines, ensuring their longevity, reliability, and overall operational efficiency.
editor by CX 2024-05-07