Product Description
Xihu (West Lake) Dis. Wheel Device/ Head Sheave/ Sheave Pulley
Introduction:
Mine hoist can be divided into 2 kinds; 1 kind is JKE series single rope mining hoist and the other is Multi-rope friction hoist.
This series mine hoist including 2m-5m single tubular and double tubular types, and can be used for mining hoist, personnel lifting and material and equipment descending from vertical shafts or inclined shafts of coal, metal and nonmetal ores.
JK mine hoist is mainly used in inclined roadways and wells of coal mines, metal mines and non-metal mines to hoist or lower personnel and materials.
Technical parameters:
| Model | Drum | Tension PF |
Tension Differe |
Rope Diameter |
Lift height (m) | Max Speed |
Reduce speed ratio |
Motor Speed |
||||||
| Number | Dia | Width | 1-layer | 2-layer | 3-layer |
|||||||||
| m | KN | mm | m | m/s | r/min | |||||||||
| JK-2×1.5/20 | 1 | 2.0 | 1.5 | 62 | 24 | 305 | 650 | 1571 | 5.2 | 20.0 | 1000 | |||
| JK-2×1.5/31.5 | 31.5 | |||||||||||||
| JK-2×1.8/20 | 1.80 | 375 | 797 | 1246 | 20.0 | |||||||||
| JK-2×1.8/31.5 | 31.5 | |||||||||||||
| JK-2.5×2/20 | 2.5 | 2.00 | 83 | 28 | 448 | 945 | 1475 | 5.0 | 20.0 | 750 | ||||
| JK-2.5×2/31.5 | 31.5 | |||||||||||||
| JK-2.5×2.3/20 | 2.30 | 525 | 1100 | 1712 | 20.0 | |||||||||
| JK-2.5×2.3/31.5 | 31.5 | |||||||||||||
| JK-3×2.2/20 | 3.0 | 2.20 | 135 | 36 | 458 | 966 | 1513 | 6.0 | 20.0 | |||||
| 2JK-2×1/11.2 | 2 | 2.0 | 1.00 | 62 | 40 | 24 | 182 | 406 | 652 | 7.0 | 11.2 | |||
| 2JK-2×1/20 | 20.0 | |||||||||||||
| 2JK-2×1/31.5 | 31.5 | |||||||||||||
| 2JK-2×1.25/11.2 | 1.25 | 242 | 528 | 838 | 11.2 | |||||||||
| 2JK-2×1.25/20 | 20.0 | |||||||||||||
| 2JK-2×1.25/31.5 | 31.5 | |||||||||||||
| 2JK-2.5×1.2/11.2 | 2.5 | 1.20 | 83 | 65 | 28 | 843 | 8.8 | 11.2 | ||||||
| 2JK-2.5×1.2/20 | 20.0 | |||||||||||||
| 2JK-2.5×1.2/31.5 | 31.5 | |||||||||||||
| 2JK-2.5×1.5/11.2 | 2.5 | 1.50 | 83 | 65 | 28 | 319 | 685 | 1080 | 8.8 | 11.2 | ||||
| 2JK-2.5×1.5/20 | 20.0 | |||||||||||||
| 2JK-2.5×1.5/31.5 | 31.5 | |||||||||||||
| 2JK-3×1.5/11.2 | 3.0 | 135 | 90 | 36 | 289 | 624 | 994 | 10.5 | 11.2 | |||||
| 2JK-3×1.5/20 | 20.0 | |||||||||||||
| 2JK-3×1.5/31.5 | 31.5 | |||||||||||||
| 2JK-3×1.8/11.2 | 1.80 | 362 | 770 | 1217 | 11.2 | |||||||||
| 2JK-3×1.8/20 | 20.0 | |||||||||||||
| 2JK-3×1.8/31.5 | 31.5 | |||||||||||||
| 2JK-3.5×1.7/11.2 | 3.5 | 1.70 | 170 | 115 | 40 | 349 | 746 | – | 12.6 | 11.2 | ||||
| 2JK-3.5×1.7/20 | 20.0 | |||||||||||||
| 2JK-3.5×2.1/11.2 | 2.10 | 450 | 950 | – | 11.2 | |||||||||
| 2JK-3.5×2.1/11.2 | 20.0 | |||||||||||||
| 2JK-4×2.1/10 | 4.0 | 245 | 160 | 48 | 421 | 891 | – | 12.6 | 10.0 | 600 | ||||
| 2JK-4×2.1/11.2 | 11.2 | |||||||||||||
| 2JK-4×2.1/20 | 20.0 | |||||||||||||
| 2JK-5×2.3/10 | 5.0 | 2.30 | 280 | 180 | 52 | 533 | – | – | 12 | 10.0 | 500 | |||
| 2JK-5×2.3/11.2 | ||||||||||||||
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| Certification: | CE, ISO 9001:2008 |
|---|---|
| Standard: | ASME, BS, ANSI, GB, ASTM, DIN |
| Surface Treatment: | Sand Blast |
| Manufacturing Process: | Forging |
| Material: | Carbon Steel |
| Name: | Head Sheave |
| Customization: |
Available
| Customized Request |
|---|
How do wheel pulleys contribute to efficient power transmission?
Wheel pulleys play a crucial role in facilitating efficient power transmission in mechanical systems. Here’s a detailed explanation:
1. Belt Engagement:
Wheel pulleys use belts to transmit power from one component to another. The design of the pulley ensures proper engagement with the belt, creating a positive grip that minimizes slippage. The belt wraps around the pulley’s circumference, maximizing the contact area and enhancing the transfer of rotational motion. This secure and efficient belt engagement allows for the effective transmission of power.
2. Mechanical Advantage:
Wheel pulleys are often used in conjunction with different-sized pulleys to create mechanical advantage. By varying the diameter of the pulleys in a system, the speed and torque can be adjusted to meet specific requirements. For example, a larger pulley driving a smaller pulley results in increased torque at the expense of speed, while a smaller driving pulley with a larger driven pulley increases speed at the expense of torque. This mechanical advantage enables efficient power transmission by matching the system’s power requirements.
3. Reduced Slippage:
Wheel pulleys are designed to minimize belt slippage during power transmission. The pulley’s groove profile and dimensions are carefully engineered to match the belt type and size, ensuring proper alignment and preventing the belt from slipping off the pulley. Additionally, tensioning mechanisms can be incorporated to maintain the optimal tension in the belt, further reducing the risk of slippage. By reducing slippage, wheel pulleys ensure that the transmitted power reaches the intended components efficiently.
4. Smooth Operation:
Wheel pulleys contribute to efficient power transmission by providing smooth operation. They are often equipped with bearings or bushings that reduce friction and enable the pulley to rotate smoothly. This smooth rotation minimizes energy losses due to friction, ensuring that the power is effectively transferred from the driving component to the driven component with minimal wastage.
5. Versatility and Adaptability:
Wheel pulleys offer versatility and adaptability in power transmission systems. They can accommodate various belt types, sizes, and materials, allowing for flexibility in system design and optimization. This versatility enables engineers to select the most appropriate belt and pulley combination for the specific power transmission requirements, maximizing efficiency.
6. Maintenance and Lubrication:
Proper maintenance and lubrication of wheel pulleys contribute to efficient power transmission. Regular inspection and maintenance help identify any issues or wear that may affect the pulley’s performance. Additionally, applying appropriate lubrication to the pulley’s bearings or bushings reduces friction, ensuring smooth operation and efficient power transfer.
Overall, wheel pulleys contribute to efficient power transmission through their effective belt engagement, mechanical advantage, reduced slippage, smooth operation, versatility, and proper maintenance practices. By optimizing these factors, wheel pulleys enable reliable and efficient power transfer in a wide range of mechanical systems and applications.
What safety considerations should be kept in mind when working with wheel pulleys?
Working with wheel pulleys requires adherence to certain safety considerations to ensure the well-being of individuals and the proper functioning of the equipment. Here are important safety considerations to keep in mind:
1. Proper Guarding:
Wheel pulleys should be properly guarded to prevent accidental contact with moving parts. Guards should be installed to cover the pulley and belt or rope to minimize the risk of entanglement or injury. This is especially important in areas where personnel or operators are present.
2. Lockout/Tagout Procedures:
When performing maintenance or repair tasks involving wheel pulleys, lockout/tagout procedures should be followed. This involves isolating the power source, such as shutting off the equipment or disconnecting the power supply, and using lockout/tagout devices to prevent accidental energization. This ensures that the pulley remains stationary and prevents unexpected movement that could cause injury.
3. Personal Protective Equipment (PPE):
Appropriate personal protective equipment should be worn when working with wheel pulleys. This may include safety glasses or goggles to protect the eyes from flying debris, gloves to protect hands during handling or maintenance tasks, and other PPE as necessary based on the specific work environment and hazards present.
4. Regular Maintenance and Inspection:
Regular maintenance and inspection of wheel pulleys are essential for safe operation. Inspect pulleys for signs of wear, damage, or misalignment, and ensure proper lubrication of bearings and other moving parts. Any worn or damaged pulleys should be promptly replaced to prevent failures that could lead to accidents.
5. Proper Training and Supervision:
Individuals working with wheel pulleys should receive proper training on their safe operation, maintenance procedures, and the potential hazards associated with them. Adequate supervision should be provided, especially for individuals who are new to working with wheel pulleys or are performing complex tasks.
6. Load Capacity and Operating Limits:
Ensure that the wheel pulleys are used within their specified load capacity and operating limits. Overloading the pulleys can lead to premature failure, increased wear, and potential accidents. Refer to the manufacturer’s guidelines or technical specifications to determine the appropriate load capacity and operating limits.
7. Clear Work Area:
Keep the work area around wheel pulleys clear of obstructions, debris, or loose objects that could interfere with their operation. This helps prevent accidents, tripping hazards, or damage to the equipment.
8. Risk Assessment:
Conduct a thorough risk assessment to identify potential hazards associated with working with wheel pulleys. Take appropriate measures to mitigate these risks, such as implementing safety procedures, providing adequate training, and using safety devices or engineering controls.
It is important to prioritize safety when working with wheel pulleys. By following proper safety precautions, individuals can minimize the risk of accidents, injuries, and equipment damage, ensuring a safe working environment.
What are the primary components and design features of a wheel pulley?
A wheel pulley consists of several primary components and design features that enable its functionality in mechanical systems. Here’s a detailed explanation:
1. Circular Disc:
The main component of a wheel pulley is a circular disc. This disc is typically made of a durable material such as metal or plastic. The circular shape provides a stable structure for the pulley and allows for rotational motion.
2. Groove:
One of the key design features of a wheel pulley is the groove or grooves along the circumference of the disc. The groove is designed to accommodate a belt or rope, allowing it to engage with the pulley. The shape and depth of the groove may vary depending on the type of belt or rope being used.
3. Belt or Rope Engagement:
The groove in the wheel pulley provides a secure grip on the belt or rope. This ensures efficient power transmission and prevents slippage during operation. The engagement between the pulley and the belt or rope is crucial for transferring motion and power.
4. Diameter:
The diameter of the wheel pulley determines the speed and torque characteristics of the mechanical system. Larger pulley diameters generally result in higher belt speeds and lower torque, while smaller pulley diameters yield lower belt speeds and higher torque. The diameter can be adjusted to achieve the desired speed and torque requirements.
5. Bearings:
Wheel pulleys often include bearings to facilitate smooth rotation. Bearings reduce friction between the pulley and its mounting shaft, enabling efficient motion transfer and minimizing wear on the pulley and the shaft.
6. Mounting Shaft:
A wheel pulley is typically mounted on a shaft, which allows it to rotate. The mounting shaft may be a separate component or an integral part of the pulley design. It provides the axis of rotation for the pulley and is connected to the driving or driven component of the mechanical system.
7. Material:
Wheel pulleys are commonly made of durable materials such as steel, aluminum, or reinforced plastics. These materials offer strength and resistance to wear, ensuring the longevity and reliability of the pulley.
8. Pulley Flanges:
Some wheel pulleys feature flanges on the outer edges of the disc. These flanges help guide and keep the belt or rope aligned within the groove, preventing it from slipping off the pulley. Flanges also provide additional support and stability to the pulley assembly.
9. Tensioning Mechanism:
In certain applications, wheel pulleys may include a tensioning mechanism. This mechanism allows for the adjustment of belt tension, ensuring proper engagement and optimal power transmission. Tensioning mechanisms can be in the form of adjustable mounts, springs, or tensioning pulleys.
10. Lubrication Points:
Wheel pulleys may have lubrication points to ensure smooth operation and reduce friction. Lubrication helps minimize wear and heat generation, extending the lifespan of the pulley and improving overall efficiency.
Overall, the primary components and design features of a wheel pulley include the circular disc, groove, belt or rope engagement, diameter, bearings, mounting shaft, material, pulley flanges, tensioning mechanism, and lubrication points. These features work together to enable efficient power transmission and rotational motion in mechanical systems.
editor by CX
2024-01-19