Product Description
Head Drive Pulley, Return Pulley,Bend Pulley, Snub Pulley,Tensioning Pulley, Take up Pulley can be provided. We are designing and manufacturing pulleys, using materials of the highest quality in a production process employing advanced technology. This together with the application of the Quality Assurance system certifi ed to ISO 9001:2015, contributes to the production of high quality products offering dependable, long life performance in the field and appreciably reducing maintenance cost. Each our conveyor pulley is individually computer designed to meet the client’s requirements.
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Product Name |
Belt Conveyor Pulley Drum |
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Type |
Drive Pulley, Bend Pulley,Snub Pulley,Take Up Pulley | ||
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Length |
200mm-2500mm |
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Materials |
Carbon steel, Stainless steel, Rubber |
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Surface Treatment |
Smooth, CHINAMFG grooved lagging, Herringbone lagging, Ceramic lagging |
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Welding |
Submerged Arc Welding |
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Bearing |
Famous brands |
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Structure |
Tube,shaft,self-aligning bearing,bearing seat/house,hub, locking bushing,end disc |
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Drive Pulley Introduction:
1. Head/Drive Pulley is located at the discharge terminus of the conveyor.
2. Drive pulley provides the driving force for the conveyor. In order to increase pulley life and traction, it often has a larger diameter than other pulleys.
3. We can supply pulleys with hot vulcanized rubber lagging, plain or grooved, as required by client. Different patterns of grooving such as herringbone or CHINAMFG can be provided to increase tractive friction under dirty or wet conditions. CHINAMFG grooves have the advantage of being installed in any orientation, regardless of belt direction.
Specification of Drive Head Pulley Drum
| Belt Width | 500-2800mm (19-110 inch) |
| Pulley Length | 500-3500mm (19-138 inch) |
| Diameter | 200-1800mm (8-70 inch) |
| Standard | ISO9001:2008, CEMA, DIN, TUV, JIS, AS/NS, etc. |
| Working Life | More than 30,000 hours. |
| Surface | Flat Rubber Lagged, Ceramic Lagged, CHINAMFG Rubber Lagged, etc. |
| Main Material | Carbon Steel |
| Length of conveyor drive pulley depends on the width of conveyor Belt. You can get drive pulleys with hot & cold vulcanized rubber lagging, plain or grooved, as required by client. | |
Bend Pulley Introduction:
1. The bend pulley is used for changing the direction of the belt.
2. The bend pulley is usually installed at the tail part or the vertical take-up equipment part when the belt direction need to 180°bending. It will be installed above the take-up equipment part while 90°bending.
3. The pulley, which is used for extending the contact surface, is usually used for below or equal to 45 degree bending.
4. The surface treatment of the bend pulley can be smooth steel and flat rubber lagging.
Specification of Bend Pulley:
| Belt Width | 500-2800mm(19-110 inch) |
| Pulley Length | 500-3200mm(19-126 inch) |
| Diameter | 200-1800mm(8-70 inch) |
| Standard | ISO9001:2008, CEMA, DIN, TUV, etc. |
| Working Life | More than 30,000 hours. |
| Surface | Flat Rubber Lagged, Ceramic Lagged, CHINAMFG Rubber Lagged, etc. |
| Main Material | Carbon Steel |
| Length of conveyor bend pulley depends on the width of conveyor Belt. You can get drive pulleys with hot vulcanized rubber lagging, plain or grooved, as required by client. | |
Snub Pulley
Snub pulley is used to achieve higher angle of wrap on the drive pulley thereby increasing the traction. It also reduces the belt tension maximizing the life of the conveyor component.It is mounted close to the drive pulley on the return side of the belt.
Specification of Snub Pulley:
| Items | Content |
| Belt Width | 500-2800mm (19-110 inch) |
| Pulley Length | 500-3200mm (19-126 inch) |
| Diameter | 200-1800mm (8-70 inch) |
| Standard | ISO9001:2008, CEMA, DIN, TUV, etc. |
| Working Life | More than 30,000 hours. |
| Surface | Flat Rubber Lagged, Ceramic Lagged, CHINAMFG Rubber Lagged, etc. |
| Main Material | Carbon Steel |
| Length of conveyor Snubpulley depends on the width of conveyor Belt. You can get Snubpulleys with hot vulcanized rubber lagging, plain or grooved, as required by client. | |
Take Up Pulley
The take up pulley will ensure adequate tension of the belt leaving the drive pulley so as to avoid any slippage of the belt, ensure proper belt tension at the loading and other points along the conveyor, compensate for changes in belt length due to elongation, and provide extra length of belt when necessary for splicing purpose.
Specification of take up pulley drum:
| Belt Width | 500-2800mm(19-110 inch) |
| Pulley Length | 500-3200mm(19-126 inch) |
| Diameter | 200-1800mm(8-70 inch) |
| Standard | ISO9001:2008, CEMA, DIN, TUV, etc. |
| Working Life | More than 30,000 hours. |
| Surface | Flat Rubber Lagged, Ceramic Lagged, CHINAMFG Rubber Lagged, etc. |
| Main Material | Carbon Steel |
The components of a pulley drum include the following:
| 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.The shell has a specific ‘face’ width and diameter which is determined by the width of the belting and the type and rating of the belt to be used on the conveyor. | |
| Diaphragm Plates | 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. | |
| 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 is supported on both ends by bearings which are housed in plummer blocks, to support the shaft and pulley assembly on the conveyor structure. Shafts often comprise different diameters along their length due to the bending moments and resultant deflection limitations. The diameter of the shaft at the landings for the bearings may be smaller to satisfy the necessary bearing diameter which is more cost-effective (smaller). Similarly in the case of a drive shaft, the drive attachment, may be different to the other diameters along the shaft and hence pulley shafts are often stepped. |
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| 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.Locking elements work on the friction-grip principle whereby the element is able to be fastened to the shaft and hub simultaneously and concentrically, by tightening a series of screws around the locking element. | |
| Hubs | The hubs are fabricated and machined housings which are welded into the end plates. The hubs are sized according to the size of the pulley, the diameter of the shaft and the size of the locking element which is required for the specific duty. | |
| Lagging | 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. This cover is usually 8 mm to 12 mm thick and can be plain or have a grooved pattern. The rubber lagging is vulcanized to the pulley shell to ensure that it remains attached under adverse operating conditions. |
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| Bearing Assemblies | Bearings support the rotating shaft and hence the pulley. The bearings are housed in ‘plummer blocks’ which enable the mass of the pulley assembly plus the belt tension forces to be transmitted to the pulley supporting structure.Plummer blocks are often bolted to ‘sole plates’ which are welded to the structure. The sole plates incorporate jacking screws to enable the pulley to be correctly and relatively easily aligned. |
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Several types of bearing housing, seals and end disc:
Pulley Drum Warehouse and package:
Pulley Drums:
Our Products: Belt Conveyors, Pulley Drum, Conveyor Rollers Idler, etc.
| Material: | Stainless Steel |
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| Surface Treatment: | Polishing |
| Motor Type: | Frequency Control Motor |
| Samples: |
US$ 300/Piece
1 Piece(Min.Order) | Order 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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What is the significance of proper alignment and tensioning in grooved pulley systems?
In grooved pulley systems, proper alignment and tensioning play a crucial role in ensuring the reliable and efficient operation of the system. The significance of proper alignment and tensioning can be explained as follows:
1. Efficient Power Transmission:
Proper alignment and tensioning of grooved pulley systems are essential for efficient power transmission. When the pulleys and belts are correctly aligned, the force applied to the pulleys is transmitted smoothly and efficiently from the input to the output. Misalignment or inadequate tension can cause power losses due to slippage or increased friction, leading to reduced system performance and energy inefficiency.
2. Prevents Belt Slippage:
Proper tensioning in grooved pulley systems helps prevent belt slippage. When the belt tension is insufficient, especially during heavy loads or high-speed operations, the belt may slip on the pulleys. This slippage can result in inaccurate movement, loss of synchronization, or incomplete power transmission. By maintaining proper tension, the grooved pulley system ensures that the belts grip the pulleys securely, minimizing the risk of slippage and ensuring reliable power transfer.
3. Reduces Wear and Extends Belt Life:
Correct alignment and tensioning help reduce wear on the belts in grooved pulley systems. Misaligned pulleys or improper tension can cause the belts to rub against the edges of the pulley grooves or other system components, leading to accelerated wear and tear. Excessive tension can strain the belts, causing them to stretch or deform prematurely. By ensuring proper alignment and tension, the grooved pulley system minimizes belt wear, extends their lifespan, and reduces the frequency of belt replacements.
4. Maintains System Stability:
Proper alignment and tensioning contribute to the stability of grooved pulley systems. Misaligned pulleys can cause belts to run off-track or derail, leading to disruptions in the system operation. This can result in product misalignment, jams, or even equipment damage. By aligning the pulleys correctly, the system maintains stable belt tracking and smooth operation. Additionally, appropriate tensioning keeps the belts properly seated in the grooves, preventing belt wandering or jumping, and ensuring consistent and reliable system performance.
5. Improves System Accuracy and Precision:
Accurate alignment and tensioning of grooved pulley systems are crucial for achieving precise and consistent operation. In applications such as labeling, cutting, or positioning, where accuracy is essential, any misalignment or improper tension can result in inaccurate product placement or compromised quality. Proper alignment ensures that the belts move the components or materials precisely along the desired path, while adequate tensioning maintains the required positioning and synchronization, allowing for precise control over the system’s actions.
6. Minimizes Noise and Vibration:
Misalignment and inadequate tension in grooved pulley systems can lead to increased noise and vibration. When the belts do not run smoothly in the grooves or experience slippage, it can generate noise and vibration, causing discomfort for operators and potentially affecting nearby equipment or processes. Proper alignment and tensioning help minimize such noise and vibration issues, promoting a quieter and more stable working environment.
7. Prevents Premature Component Failure:
Improper alignment and tensioning can put additional stress on the grooved pulleys, belts, and other system components, leading to premature failure. Misaligned pulleys can cause increased forces or uneven loading, resulting in excessive wear and fatigue on the pulley shafts, bearings, or belt teeth. Inadequate tensioning can lead to belt damage, stretching, or premature failure. By ensuring proper alignment and tension, the grooved pulley system reduces the risk of component failures, minimizing downtime and maintenance costs.
Overall, the significance of proper alignment and tensioning in grooved pulley systems lies in their ability to enhance power transmission efficiency, prevent belt slippage, reduce wear, extend belt life, maintain system stability, improve accuracy and precision, minimize noise and vibration, and prevent premature component failure. By implementing these practices, grooved pulley systems can operate reliably, efficiently, and with extended service life.
How are grooved pulleys customized for specific machinery and equipment?
Grooved pulleys can be customized to meet the specific requirements of different machinery and equipment. Here’s a detailed explanation of the customization process for grooved pulleys:
1. Design Considerations:
The customization process begins with understanding the specific needs of the machinery or equipment where the grooved pulley will be installed. Factors such as power transmission requirements, belt type, speed, load, and space limitations are taken into consideration. Design engineers work closely with the equipment manufacturer or end-user to gather all the necessary information and specifications.
2. Groove Shape and Size:
Based on the design considerations, the appropriate groove shape and size are selected. Grooved pulleys typically have V-shaped grooves, but the angle and dimensions of the grooves can vary. The groove shape and size should match the corresponding belt type and ensure optimal belt grip, alignment, and load distribution. The depth and width of the grooves are determined based on the belt dimensions and the desired power transmission capabilities.
3. Material Selection:
The choice of material for the grooved pulley depends on factors such as the operating environment, load requirements, and durability expectations. Common materials used for grooved pulleys include steel, cast iron, aluminum, and various types of plastics. The material selection ensures that the pulley can withstand the forces and stresses encountered during operation and provides the necessary strength and longevity.
4. Machining or Casting:
Once the design and material selection are finalized, the grooved pulley is manufactured through machining or casting processes. Machining involves using lathes, milling machines, or CNC equipment to shape the pulley from a solid block or bar of the chosen material. Casting, on the other hand, involves creating a mold of the pulley shape and pouring molten metal into the mold to form the pulley.
5. Groove Machining:
The grooves are machined into the pulley surface using specialized cutting tools or CNC machining. The groove dimensions and shape are precisely created to match the specifications determined earlier in the design phase. The groove machining process ensures that the pulley provides the desired belt traction, alignment, and load distribution characteristics for the specific application.
6. Surface Treatment:
Depending on the application requirements, the grooved pulley may undergo surface treatments to enhance its performance. Surface treatments can include coatings, such as plating or painting, to provide corrosion resistance or improve friction characteristics. These treatments help protect the pulley from environmental factors and optimize its interaction with the belt.
7. Quality Control:
Before the grooved pulley is ready for installation, it undergoes rigorous quality control measures. This includes dimensional inspections to ensure that the groove dimensions and overall pulley specifications meet the required tolerances. The pulley may also be subjected to load testing or dynamic balancing to verify its performance under operating conditions.
8. Installation and Integration:
Once the customized grooved pulley passes quality control, it is installed in the specific machinery or equipment for which it was designed. Proper installation techniques are followed to ensure correct alignment, tensioning, and belt tracking. The grooved pulley is integrated into the power transmission system, and adjustments may be made to optimize the overall system performance.
In summary, grooved pulleys are customized for specific machinery and equipment through a thorough design process that considers various factors such as design requirements, groove shape and size, material selection, and manufacturing techniques. The customization ensures that the grooved pulley provides the desired belt traction, alignment, and load distribution characteristics, ultimately contributing to the efficient and reliable operation of the machinery or equipment.
Can you explain the design features and advantages of grooved pulleys?
Grooved pulleys, also known as V-groove pulleys, are designed with specific features that offer several advantages in various applications. Here’s a detailed explanation of the design features and advantages of grooved pulleys:
1. Groove Configuration:
Grooved pulleys feature one or more grooves along their circumference. These grooves are typically V-shaped, although there are variations such as double V-grooves or multi-groove configurations. The V-shaped grooves are precision-engineered to match the corresponding V-belts or V-ribbed belts. The angle and depth of the grooves are designed to optimize the grip and contact area between the pulley and the belt, ensuring efficient power transmission.
2. Belt Traction:
One of the key advantages of grooved pulleys is their ability to provide enhanced belt traction. The V-grooves create multiple contact points between the pulley and the belt, increasing the friction and grip. This improved traction prevents belt slippage, which is especially important in applications with high loads, torque, or speed. The increased traction ensures reliable power transmission and reduces the risk of power loss or inefficiency.
3. Alignment and Tracking:
Grooved pulleys assist in belt alignment and tracking. The V-grooves guide the V-belt or V-ribbed belt, helping to keep it centered on the pulley. This alignment feature reduces the chances of the belt wandering or slipping off the pulley, even during operation under varying loads or conditions. Proper alignment and tracking lead to smooth and consistent power transmission, minimizing vibrations and extending the lifespan of both the belt and the pulley.
4. Load Distribution:
The grooves in grooved pulleys aid in distributing the load evenly across the belt’s surface. As the belt sits within the grooves, the contact area between the belt and the pulley increases. This broader contact area allows for better load distribution, reducing stress concentration on specific points of the belt. The even load distribution helps prevent premature wear and damage to both the belt and the pulley, enhancing their longevity and reliability.
5. Noise Reduction:
Grooved pulleys can contribute to noise reduction in mechanical systems. The V-grooves help dampen vibrations and minimize noise generated during power transmission. The belt’s secure grip within the grooves reduces the chances of belt slippage and the associated noise. This feature is particularly beneficial in applications where a quiet operating environment is desired, such as in residential or commercial settings.
6. Versatility:
Grooved pulleys are available in various sizes and configurations, making them versatile for different applications. Whether it’s a single-groove pulley for light-duty applications or a multi-groove pulley for heavy-duty industrial systems, there are options to accommodate specific belt requirements and power transmission needs. This versatility allows grooved pulleys to be used in a wide range of industries, including automotive, manufacturing, HVAC, and more.
7. Maintenance and Replacement:
When it comes to maintenance and replacement, grooved pulleys offer convenience. The design allows for easy belt installation and removal. V-belts or V-ribbed belts can be quickly placed within the grooves or removed when necessary, simplifying maintenance tasks and reducing downtime. Additionally, grooved pulleys are readily available in the market, making it convenient to find replacements when needed.
In summary, the design features and advantages of grooved pulleys include their groove configuration optimized for specific belts, enhanced belt traction, alignment and tracking assistance, load distribution capabilities, noise reduction properties, versatility for different applications, and convenience in maintenance and replacement. These features make grooved pulleys reliable and efficient components for power transmission systems, contributing to smooth operation, extended belt and pulley life, and overall system performance.
editor by CX
2023-11-16