Product Description
Product Description
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1. The allowable compensation quantity listed in the table refers to the relative offset of 2 axes formed by the comprehensive factors such as vibration, shock, deformation and temperature change caused by manufacturing error, installation error and working load change under working condition.
2. The maximum allowable angular deviation of the coupling shall not exceed ±5°.
The maximum opening value is a circular hole or a tapered hole with a keyway.
Main applications:
DWZ disc eddy current brake is mainly used as load in loading dynamometer equipment. it is experimental apparatus which can measure the dynamic mechanical properties, especially in dynamic loading test whose power value is small or tiny, also can be treated as suction power devices of other dynamic devices.
DW series disc eddy current dynamometer is, is that add device for measuring torque and rotational speed on DWZ series disc eddy current brake, it is experimental apparatus which can measure the dynamic mechnical properties, especial in dynamic loading test whose power value is small or tiny.
CW eddy current brake as a load is mainly used to measure the mechanical characteristics of inspection equipment, it and other control instrument (including loading apparatus, torque speed sensor and torque power acquisition instrument etc.) can be composed of eddy current dynamometer can be used for performance testing of the internal combustion engine, motor, gas turbine, automobile and its dynamic mechanical components, compared with other power measuring device, the CW series power measuring device has the advantages of reliability, high stability and practicability.
| Eddy current brake/dynamometer | Rated Power | Rated torque | Rated speed | Maximum rotational speed | Turning inertia | Maximum excitation voltage | Maximum excitation Current | Cooling water pressure | Flow of the cooling water |
| DWZ/DW-0.75 | 0.75 | 5 | 2000-2600 | 16000 | 0.002 | 80 | 3 | 0.1~0.3 | 1 |
| DWZ/DW-3 | 3 | 10 | 2000-2600 | 14000 | 0.003 | 80 | 3 | 0.1~0.3 | 2 |
| DWZ/DW-6 | 6 | 25 | 2000-2600 | 14000 | 0.003 | 80 | 3 | 0.1~0.3 | 3 |
| DWZ/DW-10 | 10 | 50 | 2000-2600 | 13000 | 0.01 | 80 | 3 | 0.1~0.3 | 4.5 |
| DWZ/DW-16 | 16 | 70 | 2000-2600 | 13000 | 0.02 | 80 | 3.5 | 0.1~0.3 | 6.5 |
| DWZ/DW-25 | 25 | 120 | 2000-2600 | 11000 | 0.05 | 80 | 3.5 | 0.1~0.3 | 15 |
| DWZ/DW-40 | 40 | 160 | 2000-2600 | 10000 | 0.1 | 90 | 4 | 0.1~0.3 | 25 |
| DWZ/DW-63 | 63 | 250 | 2000-2600 | 9000 | 0.18 | 90 | 4 | 0.1~0.3 | 45 |
| DWZ/DW-100 | 100 | 400 | 2000-2600 | 8500 | 0.32 | 120 | 4 | 0.1~0.3 | 60 |
| DWZ/DW-160 | 160 | 600 | 2000-2600 | 8000 | 0.52 | 120 | 5 | 0.1~0.3 | 100 |
| DWZ/DW-250 | 250 | 1100 | 2000-2600 | 7000 | 1.8 | 150 | 5 | 0.2~0.4 | 180 |
| DWZ/DW-300 | 300 | 1600 | 2000-2600 | 6000 | 2.7 | 150 | 5 | 0.2~0.4 | 210 |
| DWZ/DW-400 | 400 | 2200 | 2000-2600 | 5000 | 3.6 | 180 | 10 | 0.2~0.4 | 300 |
| DWZ/DW-630 | 630 | 3600 | 2000-2600 | 5000 | 5.3 | 180 | 10 | 0.2~0.4 | 450 |
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Exploring the various materials used in manufacturing mechanical couplings.
Mechanical couplings are manufactured using a wide range of materials, each chosen based on specific application requirements. The choice of material impacts the coupling’s performance, durability, and suitability for different operating conditions. Here are some common materials used in manufacturing mechanical couplings:
1. Steel:
Steel is one of the most widely used materials for mechanical couplings due to its strength, durability, and cost-effectiveness. It is suitable for various applications, including high-torque and high-speed requirements. Stainless steel is often preferred for couplings in corrosive environments.
2. Aluminum:
Aluminum is known for its lightweight properties, making it suitable for applications where reducing weight is essential, such as in aerospace and automotive industries. However, aluminum couplings may have lower torque capacities compared to steel couplings.
3. Cast Iron:
Cast iron is used in couplings requiring high strength and wear resistance. It is commonly used in industrial machinery and heavy-duty applications.
4. Bronze:
Bronze is chosen for its excellent resistance to corrosion and its ability to handle high shock loads. Bronze couplings are often used in marine and hydraulics applications.
5. Brass:
Brass is used in couplings where electrical conductivity is required, such as in some electrical motor couplings.
6. Rubber and Elastomers:
Rubber and elastomers are used in flexible couplings to provide flexibility and vibration damping. They can absorb shocks and compensate for misalignments in various applications.
7. Polyurethane:
Polyurethane is commonly used in elastomeric couplings due to its excellent resilience, toughness, and resistance to wear.
8. Thermoplastics:
Thermoplastics like nylon and polyethylene are used in lightweight couplings with low torque requirements. They are known for their low friction and self-lubricating properties.
9. Composite Materials:
Composite materials, such as carbon fiber-reinforced polymers, are used in high-performance couplings where a balance of strength and weight is crucial.
10. Ceramic:
Ceramic couplings are used in extreme temperature and high-speed applications due to their excellent thermal and wear resistance properties.
The choice of material for a mechanical coupling depends on factors like the application’s operating conditions, load requirements, environmental factors, and cost considerations. Selecting the right material ensures that the coupling can perform reliably and efficiently in its intended application.
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Do mechanical couplings require regular maintenance, and if so, how often?
Yes, mechanical couplings do require regular maintenance to ensure their optimal performance and longevity. The frequency of maintenance depends on various factors, including the type of coupling, the application’s operating conditions, and the manufacturer’s recommendations. Here are some general guidelines for the maintenance of mechanical couplings:
1. Visual Inspection:
Perform regular visual inspections of the coupling to check for signs of wear, damage, or misalignment. Inspect for any corrosion, cracks, or wear on the coupling components.
2. Lubrication:
Some mechanical couplings, especially those with moving parts or sliding surfaces, require periodic lubrication. Follow the manufacturer’s recommendations regarding the type and frequency of lubrication.
3. Torque Verification:
Check the tightness of fasteners, such as set screws or bolts, to ensure that the coupling is securely attached to the shafts. Loose fasteners can lead to misalignment and reduced performance.
4. Alignment Check:
Regularly check the alignment of the connected shafts to ensure that the coupling is operating within its design limits. Misalignment can lead to premature wear and reduced coupling efficiency.
5. Replacement of Worn Components:
If any coupling components show signs of wear or damage beyond acceptable limits, replace them promptly to prevent further issues.
6. Operating Condition Analysis:
Monitor the operating conditions of the mechanical system and assess whether any changes have occurred that may affect the coupling’s performance. Environmental conditions, load variations, and other factors can impact the coupling’s wear rate.
7. Manufacturer’s Guidelines:
Always follow the maintenance recommendations provided by the coupling manufacturer. The manufacturer’s guidelines may include specific inspection intervals and maintenance procedures tailored to the coupling type and application.
The maintenance frequency for mechanical couplings can vary from monthly inspections for high-demand applications to annual inspections for less demanding conditions. In some cases, couplings in critical systems may require more frequent inspections to ensure their reliability.
Implementing a proactive maintenance program for mechanical couplings helps identify potential issues early and prevents unexpected failures that can lead to costly downtime and repairs. Regular maintenance extends the life of the coupling, improves system efficiency, and enhances overall operational safety.
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How does a mechanical coupling facilitate the connection between two shafts?
A mechanical coupling plays a critical role in connecting two shafts in a mechanical system and enabling the transmission of torque and motion between them. The process of how a mechanical coupling facilitates this connection can be explained as follows:
1. Physical Linkage:
A mechanical coupling physically links the two shafts together. It consists of two mating components that fit over the respective shaft ends, ensuring a secure connection.
2. Torque Transmission:
When the motor or driving shaft rotates, it generates torque. This torque is transmitted through the mechanical coupling to the driven shaft, causing it to rotate as well.
3. Keyways or Spline Connection:
Many mechanical couplings use keyways or splines to enhance the connection between the shafts. Keyways are slots cut into the shaft and coupling, and a key is inserted to prevent relative motion between the two components.
4. Compression or Expansion Fit:
In some couplings, the connection between the shafts is achieved through a compression or expansion fit. The coupling is designed to be slightly smaller or larger than the shaft diameter, creating a tight fit when assembled.
5. Set Screws or Bolts:
Set screws or bolts are often used in mechanical couplings to secure the coupling tightly to the shafts. These screws apply pressure to prevent any relative movement between the coupling and the shafts during operation.
6. Flexible Elements:
Flexible couplings feature elements made of materials like rubber or elastomers that can bend or flex. These elements accommodate misalignment between the shafts while maintaining the connection and transmitting torque.
7. Key Features:
Certain types of couplings, such as gear couplings or disc couplings, utilize teeth or gear features to achieve a strong and precise connection between the shafts. These key features ensure a positive engagement, enhancing torque transmission.
In summary, a mechanical coupling serves as the link between two rotating shafts, enabling them to function together as a single unit. Whether through a tight compression fit, keyways, or flexible elements, the coupling ensures a secure and efficient connection, allowing torque to be transmitted from one shaft to the other, and enabling the mechanical system to perform its intended function reliably.
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editor by CX 2024-04-15