Product Description
Densen customized pin bush coupling,pin coupling with elastic sleeve,flexible pin coupling
Product Name | Densen customized pin bush coupling,pin coupling with elastic sleeve,flexible pin coupling |
DN mm | 11~180mm |
Axis Angle | 1°00/1°30 |
Rated Torque | 10~25000 N·m |
Allowable speed | 5000~350N·m |
Material | 35CrMo/HT200/ZG270 |
Application | Widely used in metallurgy, mining, engineering and other fields. |
Products show
Features:
1,Double-diaphragm and small axial opposite wheel type coupling is the patent product developed by our factory,the patent No. ZL.99 2 46247.9
2,With compact strcture, the adjustment capacity,anti-inpact and vibration-absorbing etc properties will be higher by 35%-40% than those of single diaphragm opposite wheel type.
3,Under unexpected diaphragm breakage conditions, the plum CHINAMFG shape flange can still transfer the torque ,the safety property is good .
Company Information
Equipment
Application Case
Typical case of diaphragm coupling applied to variable frequency speed control equipment
JMB type coupling is applied to HangZhou Oilfield Thermal Power Plant
According to the requirements of HangZhou Electric Power Corporation, HangZhou Oilfield Thermal Power Plant should dynamically adjust the power generation according to the load of the power grid and market demand, and carry out the transformation of the frequency converter and the suction fan. The motor was originally a 1600KW, 730RPM non-frequency variable speed motor matched by HangZhou Motor Factory. The speed control mode after changing the frequency is manual control. Press the button speed to increase 10RPM or drop 10RPM. The coupling is still the original elastic decoupling coupling, and the elastic de-coupling coupling after frequency conversion is frequently damaged, which directly affects the normal power generation.
It is found through analysis that in the process of frequency conversion speed regulation, the pin of the coupling can not bear the inertia of the speed regulation process (the diameter of the fan impeller is 3.3 meters) and is cut off, which has great damage to the motor and the fan.
Later, they switched to the JMB460 double-diaphragm wheel-type coupling of our factory (patent number: ZL.99246247.9). After 1 hour of destructive experiment and more than 1 year of operation test, the equipment is running very well, and there is no Replace the diaphragm. 12 units have been rebuilt and the operation is in good condition.
Other Application Case
Spare parts
Packaging & Shipping
Contact us
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Standard Or Nonstandard: | Standard |
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Torque: | >80N.M |
Bore Diameter: | 11~180mm |
Speed: | 10~25000 |
Structure: | Flexible |
Material: | 45 Steel |
Samples: |
US$ 50/Piece
1 Piece(Min.Order) | |
---|
Customization: |
Available
| Customized Request |
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Are There Any Safety Considerations When Using Pin Couplings in Rotating Machinery?
Yes, there are several safety considerations to keep in mind when using pin couplings in rotating machinery. These considerations are essential to ensure the safe and efficient operation of the equipment and to protect personnel working in the vicinity. Here are some key safety points to consider:
- Guarding: When installing pin couplings, it is crucial to provide adequate guarding around the coupling area. This helps prevent accidental contact with the rotating coupling components, such as pins and hubs, which could cause severe injuries.
- Maintenance and Inspection: Regular maintenance and inspection of the pin coupling are vital to identify any signs of wear, misalignment, or damage. Any worn or damaged components should be replaced immediately to prevent coupling failure, which could lead to sudden equipment shutdown or safety hazards.
- Proper Alignment: Ensuring precise alignment of the connected shafts is crucial to the safe operation of the pin coupling. Misalignment can lead to increased stresses and premature wear on the coupling components, resulting in potential failures.
- Torque and Speed Limits: Adhering to the manufacturer’s recommended torque and speed limits for the pin coupling is essential for its safe operation. Exceeding these limits can lead to overloading and failure of the coupling.
- Environmental Considerations: Take into account the operating environment when selecting a pin coupling. Extreme temperatures, corrosive atmospheres, or harsh conditions may require special materials or coatings to ensure the coupling’s integrity and prevent premature failure.
- Training and Awareness: Operators and maintenance personnel should receive proper training on the safe handling, installation, and maintenance of pin couplings. Awareness of potential hazards and safety protocols is crucial for the safe use of rotating machinery.
- Emergency Shutdown: Install emergency shutdown systems that can quickly stop the rotating machinery in case of any safety concerns or abnormal conditions.
- Compliance with Regulations: Ensure that the use of pin couplings complies with all relevant safety and industry regulations and standards.
By taking these safety considerations into account and implementing proper safety measures, the use of pin couplings in rotating machinery can be done safely and effectively, mitigating potential risks and ensuring a safe working environment for personnel.
Impact of Pin Coupling on the Overall Reliability of Connected Equipment
A pin coupling plays a crucial role in enhancing the overall reliability and performance of connected equipment in various industrial applications. Its design and construction contribute to several factors that influence reliability:
1. Torque Transmission: Pin couplings efficiently transmit torque between the driving and driven shafts, ensuring smooth power transfer without slippage or loss. This consistent torque transmission helps maintain the stability and reliability of the system during operation.
2. Misalignment Compensation: Pin couplings are designed to accommodate small amounts of angular, parallel, and axial misalignment between shafts. By tolerating misalignment, the coupling reduces stress on connected equipment, bearings, and seals, thereby enhancing reliability and extending the service life of these components.
3. Shock and Vibration Absorption: In applications with dynamic loads, such as pumps, compressors, and heavy machinery, pin couplings help dampen shock and vibrations. By absorbing and reducing these impact forces, the coupling minimizes stress on the system and prevents premature component failure.
4. Simplified Maintenance: Pin couplings generally have a simple design, making them easy to install and maintain. The ease of maintenance ensures that the coupling can be regularly inspected, lubricated, and replaced when necessary, reducing downtime and increasing the overall reliability of the equipment.
5. Corrosion Resistance: Depending on the materials used, pin couplings can be highly resistant to corrosion, making them suitable for use in harsh or corrosive environments. This corrosion resistance prevents degradation of the coupling and its components, enhancing reliability and longevity.
6. Enhanced Durability: High-quality pin couplings are manufactured from robust materials and undergo precise machining processes. These attributes contribute to the coupling’s durability, allowing it to withstand heavy loads and harsh conditions over an extended period.
7. Balanced Design: The design of a pin coupling ensures that the load is evenly distributed between the driving and driven shafts. This balanced load distribution reduces stress concentrations, minimizes wear, and increases the reliability of connected equipment.
8. Compliance with Standards: Reputable pin coupling manufacturers ensure their products comply with industry standards and regulations. Meeting these standards ensures that the coupling is designed and manufactured to specific quality criteria, enhancing reliability and safety.
Overall, a well-selected and properly installed pin coupling can significantly improve the reliability and performance of connected equipment. It helps prevent unexpected failures, reduces downtime, and contributes to the overall efficiency of industrial processes.
Can Pin Couplings Handle Misalignment Between Shafts?
Yes, pin couplings are designed to accommodate a certain degree of misalignment between shafts in rotating machinery. They are considered flexible couplings, which means they can provide some degree of angular, parallel, and axial misalignment capability.
Pin couplings typically consist of two hubs, each connected to a shaft, and a central sleeve with pins that transmit torque between the hubs. The pins allow for a limited range of movement, which helps to compensate for slight misalignments between the shafts.
The angular misalignment capacity of a pin coupling is achieved through the bending of the pins. When the shafts are misaligned at an angle, the pins on one side of the coupling experience bending while those on the opposite side are in tension. The pins are designed to withstand these bending and tension forces within their elastic limits, ensuring proper functioning and longevity of the coupling.
Similarly, the pins can accommodate parallel misalignment by sliding within the pin holes of the coupling’s central sleeve. This sliding action allows the hubs to move slightly relative to each other, compensating for any offset between the shafts.
However, it is essential to note that pin couplings have limitations in terms of the amount of misalignment they can handle. Excessive misalignment beyond their specified limits can lead to increased wear on the pins and other coupling components, reducing the coupling’s effectiveness and potentially causing premature failure.
While pin couplings are suitable for applications with moderate misalignment requirements, they may not be the best choice for applications with significant misalignment or where precise alignment is critical. In such cases, more flexible couplings like gear or elastomeric couplings may be more appropriate.
Overall, when considering the use of pin couplings, it is essential to carefully evaluate the specific misalignment requirements of the application and select a coupling that can adequately accommodate those misalignments while ensuring reliable and efficient power transmission.
editor by CX 2024-04-22
China supplier CZPT Customized Pin Bush Coupling, Bushed Pin Flexible Coupling for Pump
Product Description
Densen Customized HLL Type Elastic Pin Shaft Coupling with Brake Wheel
We have professionals to solve your questions, please contact us directly!
Product Name | Densen customized pin bush coupling,pin coupling,bushed pin flexible coupling for pump |
DN mm | 12~340mm |
Rated Torque | 250~180000 N·m |
Allowable speed | 850~6300 kN·m |
Material |
45#steel |
Application | Widely used in pump,fan,metallurgy, mining, engineering and other fields. |
Product show
Features:
1,Double-diaphragm and small axial opposite wheel type coupling is the patent product developed by our factory,the patent No. ZL.99 2 46247.9
2,With compact strcture, the adjustment capacity,anti-inpact and vibration-absorbing etc properties will be higher by 35%-40% than those of single diaphragm opposite wheel type.
3,Under unexpected diaphragm breakage conditions, the plum CHINAMFG shape flange can still transfer the torque ,the safety property is good .
Company Information
Equipment
Application Case
Typical case of diaphragm coupling applied to variable frequency speed control equipment
JMB type coupling is applied to HangZhou Oilfield Thermal Power Plant
According to the requirements of HangZhou Electric Power Corporation, HangZhou Oilfield Thermal Power Plant should dynamically adjust the power generation according to the load of the power grid and market demand, and carry out the transformation of the frequency converter and the suction fan. The motor was originally a 1600KW, 730RPM non-frequency variable speed motor matched by HangZhou Motor Factory. The speed control mode after changing the frequency is manual control. Press the button speed to increase 10RPM or drop 10RPM. The coupling is still the original elastic decoupling coupling, and the elastic de-coupling coupling after frequency conversion is frequently damaged, which directly affects the normal power generation.
It is found through analysis that in the process of frequency conversion speed regulation, the pin of the coupling can not bear the inertia of the speed regulation process (the diameter of the fan impeller is 3.3 meters) and is cut off, which has great damage to the motor and the fan.
Later, they switched to the JMB460 double-diaphragm wheel-type coupling of our factory (patent number: ZL.99246247.9). After 1 hour of destructive experiment and more than 1 year of operation test, the equipment is running very well, and there is no Replace the diaphragm. 12 units have been rebuilt and the operation is in good condition.
Other Application Case
Spare parts
Packaging & Shipping
Contact us
Standard Or Nonstandard: | Nonstandard |
---|---|
Shaft Hole: | Depend on The Model |
Torque: | Depend on The Model |
Bore Diameter: | Depend on The Model |
Speed: | Depend on The Model |
Structure: | Flexible |
Samples: |
US$ 20/Piece
1 Piece(Min.Order) | |
---|
Customization: |
Available
| Customized Request |
---|
What Are the Maintenance Requirements for Pin Couplings?
Pin couplings are known for their simplicity and ease of maintenance. Regular maintenance helps ensure the longevity and optimal performance of pin couplings in various mechanical systems. Here are the key maintenance requirements for pin couplings:
- Lubrication: Most pin couplings require periodic lubrication to reduce friction between the pins and the coupling hubs. Lubrication helps prevent wear and corrosion, ensuring smooth operation.
- Inspection: Regular visual inspections are essential to identify any signs of wear, misalignment, or damage. Inspecting the pins, coupling hubs, and surrounding components can help detect potential issues early on.
- Torque Check: It is crucial to periodically check and retighten the bolts or screws that secure the coupling to the shafts. Loose fasteners can lead to misalignment and coupling failure.
- Alignment: Proper shaft alignment is critical for the effective functioning of pin couplings. Regularly check and adjust the alignment if necessary to minimize wear and vibrations.
- Environmental Protection: In harsh environments or corrosive conditions, take measures to protect the pin coupling from contaminants or chemicals that could cause damage.
- Replacement of Worn Components: When any of the coupling components, such as pins or hubs, show signs of significant wear, they should be replaced promptly to prevent further damage.
It is important to follow the manufacturer’s maintenance guidelines and recommendations for the specific type of pin coupling used in the application. Regular maintenance not only ensures the smooth operation of the coupling but also helps prevent unexpected breakdowns and reduces the risk of costly downtime. Proper maintenance can extend the service life of pin couplings and contribute to the overall reliability of the connected equipment.
Usage of Pin Couplings in Applications with Varying Operating Temperatures
Pin couplings are versatile and can be used in a wide range of operating conditions, including applications with varying temperatures. The performance of pin couplings at different temperature levels depends on the materials used in their construction and the specific design features. Here’s how pin couplings handle varying operating temperatures:
1. Material Selection: Pin couplings can be manufactured using different materials, including steel, stainless steel, alloy steel, and various heat-treated materials. The choice of material depends on the application requirements and the temperature range the coupling will be subjected to. Some materials are suitable for high-temperature applications, while others are more suitable for low-temperature conditions.
2. Heat Dissipation: The simple and open design of pin couplings allows for efficient heat dissipation. As the coupling operates, any heat generated due to friction or other factors can easily dissipate into the surrounding environment. This helps in maintaining a stable operating temperature and prevents overheating of the coupling and connected equipment.
3. Lubrication: Proper lubrication is essential for the smooth operation of pin couplings, especially in applications with high temperatures. Lubricants help reduce friction and wear between the mating surfaces, ensuring that the coupling functions optimally even in elevated temperature conditions.
4. Thermal Expansion Considerations: Pin couplings must be designed with thermal expansion in mind. When the operating temperature increases, the materials may expand, and the coupling should have sufficient clearance or play to accommodate this expansion without causing binding or interference.
5. Temperature Limits: While pin couplings can handle a wide range of temperatures, there are limits to the extremes they can tolerate. Excessive heat can lead to degradation of the coupling material, premature wear, or reduced performance. It’s essential to choose a pin coupling that is rated for the specific temperature range of the application.
6. Insulation: In certain cases, pin couplings may need additional insulation to protect against extreme temperature variations or to prevent heat transfer to sensitive components nearby. Insulation can be achieved using materials with low thermal conductivity or by incorporating insulating coatings or barriers.
When selecting a pin coupling for an application with varying operating temperatures, it’s crucial to consider the specific temperature range, the type of materials used in the coupling’s construction, and any additional factors that may impact its performance. Following the manufacturer’s guidelines and ensuring proper maintenance will help ensure the pin coupling operates effectively and reliably across the expected temperature range.
Advantages of Using Pin Couplings in Mechanical Systems
Pin couplings, also known as shear pin couplings, offer several advantages when used in mechanical systems. These advantages make them a popular choice for various industrial applications:
- 1. Overload Protection: Pin couplings are designed to provide overload protection to connected equipment. In case of excessive torque or sudden shock loads, the sacrificial pins will shear off, preventing damage to the shafts and other components.
- 2. Misalignment Tolerance: Pin couplings can accommodate a limited amount of angular misalignment between the shafts. This helps to compensate for minor misalignments and reduces the stress on the connected equipment.
- 3. Cost-Effective: The shear pins used in pin couplings are relatively inexpensive compared to other coupling components. In the event of a failure, replacing the damaged pins is a cost-effective solution, avoiding more significant repairs to the main equipment.
- 4. Easy Replacement: After shearing, the damaged pins can be quickly and easily replaced. This leads to reduced downtime and lower maintenance costs in the long run.
- 5. Versatility: Pin couplings are suitable for a wide range of applications, including pumps, compressors, fans, and other industrial machinery. Their ability to handle varying operating conditions makes them versatile in different environments.
- 6. Shock Load Absorption: Pin couplings can absorb and dissipate shock loads effectively. The shear pins act as a buffer, protecting the equipment from sudden impacts or overloads.
Despite their numerous advantages, it is essential to consider the limitations of pin couplings as well. They have lower torque capacities compared to some other coupling types, such as gear couplings or rigid couplings. Additionally, the need to replace shear pins after each failure may lead to more frequent maintenance requirements in applications with frequent overloads or misalignments.
In conclusion, pin couplings provide reliable torque transmission and safety features, making them a valuable component in various mechanical systems. Their ability to protect against overloads and accommodate misalignments makes them a practical choice in a wide range of industrial applications.
editor by CX 2023-10-19