Product Description
Conveyor Pulley is manufactured as per customer requirement,with main design under national standard,quality inspection focusing on shaft core,welded joint,rubber material and hardness,dynamic balance and so on for longer product life time.
| Drive/Head Pulley – A conveyor pulley used for the purpose of driving a conveyor belt. Typically mounted in external bearings and driven by an external drive source. |
| Return/Tail Pulley – A conveyor pulley used for the purpose of redirecting a conveyor belt back to the drive pulley. Tail pulleys can utilize internal bearings or can be mounted in external bearings and are typically located at the end of the conveyor bed. Tail pulleys commonly serve the purpose of a Take-Up pulley on conveyors of shorter lengths. |
| Snub Pulley – A conveyor pulley used to increase belt wrap around a drive pulley, typically for the purpose of improving traction. |
| Take-Up Pulley – A conveyor pulley used to remove slack and provide tension to a conveyor belt. Take-Up pulleys are more common to conveyors of longer lengths. |
| Bend Pulley – A conveyor pulley used to redirect the belt and provide belt tension where bends occur in the conveyor system. |
The specification of pulley:
Drive Drum: is the main component of power transmission. The drum can be divided into single drum (the angle of the belt to the drum is 210 ° ~ 230 °) , Double Drum (the angle of the belt to the drum is up to 350 °) and
multi-drum (used for high power) .Â
Bend Drum: is used for changing the running direction of the conveyor belt or increasing the surrounding angle of the conveyor belt on the driving roller, and the roller adopts a smooth rubber surface . The drum shaft shall be forgings and shall be nondestructive tested and the inspection report shall be provided.Â
The Various Surface of Pulley:
Conveyor pulley lagging is essential to improve conveyor belt performance, the combination of our pulley lagging can reduces belt slippage, improve tracking and extends life of belt, bearing & other components.
| PLAIN LAGGING:This style of finish is suitable for any pulley in the conveyor system where watershed is not necessary. It provides additional protection against belt wear, therefore, increasing the life of the pulley. |
| DIAMOND GROOVE LAGGING:This is the standard pattern on all Specdrum lagged conveyor pulleys. It is primarily used for reversing conveyor drive pulleys. It is also often used to allow bi-directional pulley rotation, and the pattern allows water to be dispersed away from the belt. |
| HERRINGBONE LAGGING:The herringbone pattern’s grooves are in the direction of rotation, and offers superior tractive properties. Each groove allows water and other liquids to escape between the face of the drum pulley and the belt. Herringbone grooved pulleys are directional and should be applied to the conveyor in a manner in which the grooves point toward the direction of the belt travel. |
| CHEVRON LAGGING:Some customers specify that the points of the groove should meet – as done in Chevron styled lagging. As before with the herringbone style, this would be used on drive drum pulleys and should be fitted in the correct manner, so as to allow proper use of the pattern and water dispersion also. |
| CERAMIC LAGGING:The Ceramic tiles are moulded into the lagging which is then cold bonded to the drum pulley. This style of finish allows excellent traction and reduces slippage, meaning that the belt tension is lower and, therefore as a result, increases the life of the pulley. |
| WELD-ON STRIP LAGGING: Weld-On Strip Lagging can be applied to bi-directional pulleys, and also has a finish to allow the easy dispersion of water or any fluids between the drum pulley and the belt. |
The Components of Pulley:
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| 1. Drum or Shell:The drum is the portion of the pulley in direct contact with the belt. The shell is fabricated from either a rolled sheet of steel or from hollow steel tubing. |
| 2.Diaphragm Plates:Â The diaphragm or end plates of a pulley are circular discs which are fabricated from thick steel plate and which are welded into the shell at each end, to strengthen the drum.The end plates are bored in their centre to accommodate the pulley Shaft and the hubs for the pulley locking elements. |
| 3.Shaft :The shaft is designed to accommodate all the applied forces from the belt and / or the drive unit, with minimum deflection. The shaft is located and locked to the hubs of the end discs by means of a locking elements. The shaft and hence pulley shafts are often stepped. |
| 4.Locking Elements:These are high-precision manufactured items which are fitted over the shaft and into the pulley hubs. The locking elements attach the pulley firmly to the shaft via the end plates. |
| 5.Hubs:The hubs are fabricated and machined housings which are welded into the end plates. |
| 6.Lagging:Â It is sometimes necessary or desirable to improve the friction between the conveyor belt and the pulley in order to improve the torque that can be transmitted through a drive pulley. Improved traction over a pulley also assists with the training of the belt. In such cases pulley drum surfaces are `lagged` or covered in a rubberized material. |
| 7.Bearing:Â Bearings used for conveyor pulleys are generally spherical roller bearings, chosen for their radial and axial load supporting characteristics. The bearings are self-aligning relative to their raceways, which means that the bearings can be ‘misaligned’ relative to the shaft and plummer blocks, to a certain degree. In practical terms this implies that the bending of the shaft under loaded conditions as well as minor misalignment of the pulley support structure, can be accommodated by the bearing. |
The Production Process of Pulley:
Our Products:
| 1.Different types of Laggings can meet all kinds of complex engineering requirements. |
| 2.Advanced welding technology ensures the connection strength between Shell and End-Disk. |
| 3.High-strength Locking Elements can satisfy torque and bending requirements. |
| 4.T-shape End-Discs provide highest performance and reliability. |
| 5.The standardized Bearing Assembly makes it more convenient for the end user to replace it. |
| 6.Excellent raw material and advanced processing technology enable the shaft can withstand enough torque. |
| 7.Low maintenance for continued operation and low total cost of ownership. |
| 8.Scientific design process incorporating Finite Element Analysis. |
Our Workshop:
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| Material: | Carbon Steel |
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| Surface Treatment: | Baking Paint |
| Motor Type: | Frequency Control Motor |
| Samples: |
US$ 40/Piece
1 Piece(Min.Order) | Order Sample Free sample
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| Customization: |
Available
| Customized Request |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Can V pulleys withstand variations in environmental conditions?
V pulleys are designed to withstand variations in environmental conditions to a certain extent. However, their ability to withstand different environmental factors depends on several factors, including the materials used, the specific design of the pulley, and the maintenance practices employed. Here is a detailed explanation:
1. Temperature:
V pulleys can generally withstand a wide range of temperatures. The specific temperature limits depend on the materials used for construction. For example:
- Cast iron and steel pulleys can handle high temperatures and are suitable for applications in industrial environments.
- Aluminum pulleys have a lower temperature limit, and excessive heat can affect their structural integrity.
- Plastic pulleys may have temperature limitations, and exposure to high temperatures can cause deformation or melting.
It’s important to consider the temperature range in which the V pulleys will operate and select materials accordingly.
2. Moisture and Corrosion:
V pulleys can be susceptible to corrosion, particularly if they are made of materials like cast iron or steel. Exposure to moisture, humidity, or corrosive substances in the environment can lead to rust or degradation of the pulley components.
To mitigate corrosion risks, protective measures can be taken, such as:
- Using corrosion-resistant materials like stainless steel or aluminum alloy.
- Applying coatings or finishes like zinc plating, powder coating, or anodizing to provide a barrier against moisture and corrosive agents.
- Regular cleaning and maintenance to remove accumulated dirt, debris, or corrosive substances.
3. Dust and Contaminants:
V pulleys may be exposed to dust, dirt, and other contaminants present in the environment. These particles can accumulate in the pulley grooves, affecting the grip and performance of the V-belt.
To minimize the impact of dust and contaminants:
- Implement proper guarding to prevent the ingress of debris and contaminants.
- Regularly clean the pulleys to remove accumulated dirt and ensure smooth belt operation.
- Consider using pulley covers or seals to provide additional protection against contamination.
4. Shock and Vibration:
V pulleys may be subjected to shock loads or vibrations in certain applications. These dynamic forces can affect the overall performance and integrity of the pulley and the power transmission system.
Design considerations, such as proper balancing, robust construction, and secure hub attachment, can help minimize the impact of shock and vibration on the pulleys.
5. UV Exposure:
If V pulleys are used in outdoor applications, they may be exposed to ultraviolet (UV) radiation from sunlight. Prolonged UV exposure can degrade certain materials, particularly plastics, causing them to become brittle or discolored.
If UV exposure is a concern, selecting materials with UV-resistant properties or applying protective coatings can help mitigate the effects of UV radiation.
While V pulleys are designed to withstand variations in environmental conditions, it is essential to consider the specific requirements of the application and select appropriate materials, coatings, and maintenance practices to ensure their long-term performance and durability.
Can V pulleys be used in both simple and complex mechanical systems?
Yes, V pulleys can be used in both simple and complex mechanical systems. Their versatility and effectiveness make them suitable for a wide range of applications. Here’s a detailed explanation:
1. Simple Mechanical Systems:
In simple mechanical systems, V pulleys are often used in basic power transmission setups. These systems typically involve a single driving pulley connected to a driven pulley by a V-belt. The simplicity of the setup allows for easy installation and maintenance.
Simple mechanical systems utilizing V pulleys are commonly found in applications such as:
- Small machinery and equipment
- Home appliances
- Power tools
- Fans and blowers
- Pumps
2. Complex Mechanical Systems:
V pulleys are also employed in complex mechanical systems where multiple pulleys, belts, and components are interconnected. These systems require precise power transmission, synchronization, or speed control.
Complex mechanical systems that utilize V pulleys can be found in various industries, including:
- Automotive: V pulleys are used in engines, transmission systems, and accessory drives.
- Manufacturing: V pulleys are found in conveyor systems, industrial machinery, and production equipment.
- Agriculture: V pulleys are used in tractors, harvesters, and irrigation systems.
- Mining: V pulleys are employed in conveyor belts for material handling.
- Construction: V pulleys are used in construction machinery and equipment.
- HVAC (Heating, Ventilation, and Air Conditioning): V pulleys are utilized in air handling units, fans, and compressors.
3. Advantages in Both Simple and Complex Systems:
V pulleys offer several advantages that make them suitable for both simple and complex mechanical systems:
- Cost-Effective: V pulleys are generally affordable and provide efficient power transmission at a lower cost compared to other drive systems.
- Wide Range of Speed Ratios: By using pulleys of different sizes, V-belt drive systems can achieve a wide range of speed ratios to meet specific application requirements.
- Shock Absorption: The elasticity of V-belts allows them to absorb shock and vibration, reducing stress on the pulleys and other components.
- Quiet Operation: V-belt drive systems produce less noise compared to direct drives, making them suitable for applications where noise reduction is desired.
- Easy Installation and Maintenance: V pulleys are relatively simple to install and maintain, making them accessible for various users and applications.
Overall, the versatility, reliability, and cost-effectiveness of V pulleys make them viable options for both simple and complex mechanical systems, providing efficient power transmission in a wide range of applications.
How do V pulleys differ from other types of pulleys?
V pulleys, also known as V-belt pulleys or sheaves, have distinct characteristics that set them apart from other types of pulleys. Here’s an explanation of how V pulleys differ from other pulleys:
1. Groove Shape:
The most notable difference between V pulleys and other pulleys is the shape of the groove on their outer circumference. V pulleys have a V-shaped groove, which is specifically designed to accommodate V-belts with a trapezoidal cross-section. This groove shape provides a wedging action that enhances the grip between the pulley and the belt, reducing the likelihood of slippage.
2. Friction-Based Power Transmission:
V pulleys utilize a friction-based power transmission system. The V-belt wraps around the V pulley, creating a frictional contact between the belt and the groove. This friction allows for the transfer of rotational motion and torque between the driving source and the driven component. In contrast, other types of pulleys, such as flat pulleys or timing pulleys, may employ different mechanisms, such as flat belts or toothed belts, for power transmission.
3. V-Belt Compatibility:
V pulleys are specifically designed to work in conjunction with V-belts. V-belts are flexible rubber belts with a trapezoidal cross-section that match the V-shaped groove on the pulley. The shape and dimensions of the V-belt are precisely engineered to provide optimal contact and grip on the V pulley. This compatibility between the V pulley and the V-belt ensures efficient power transmission and reduces the risk of slippage.
4. Torque Transmission:
V pulleys are particularly suitable for high torque transmission. The wedging action created by the V-shaped groove and the corresponding shape of the V-belt allows for efficient power transfer even under heavy loads or during sudden changes in speed or direction. The design of V pulleys enables them to transmit higher levels of torque compared to some other types of pulleys.
5. Speed Variation:
Another distinctive feature of V pulleys is the ability to achieve speed variation in power transmission systems. By changing the diameter of the V pulley, different speed ratios can be achieved between the driving source and the driven component. This flexibility in speed control allows for proper matching of operational requirements and efficient power transmission.
6. Damping Effect:
The flexibility of V-belts and the slight elasticity of the rubber material used in V-belts provide a damping effect in V pulley systems. This helps absorb vibrations and shocks in the mechanical system, contributing to smoother operation, reduced noise, and increased component longevity.
7. Common Applications:
V pulleys are commonly used in various applications, including automotive systems, industrial machinery, HVAC systems, and power transmission systems in appliances. They are especially prevalent in systems where high torque transmission, speed variation, and reliable power transmission are required.
By understanding the distinctive features of V pulleys, engineers and designers can select the appropriate pulley type for specific applications, considering factors such as power requirements, torque transmission, speed control, and belt compatibility.
editor by CX
2024-05-17