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.
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| 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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How do you select the right grooved pulley for a specific industrial application?
Selecting the right grooved pulley for a specific industrial application involves considering several factors to ensure optimal performance and reliability. Here are the steps to guide you in the selection process:
1. Identify the Application Requirements:
– Determine the specific application requirements, including the type of machinery or equipment where the pulley will be used, the power transmission needs, speed requirements, and environmental conditions (such as temperature and humidity).
2. Determine the Belt Type:
– Identify the type of belt that will be used with the grooved pulley, such as V-belt, flat belt, timing belt, or poly-V belt. Each belt type has specific dimensions, profiles, and load-bearing capabilities, and the pulley must be compatible with the belt to ensure efficient power transmission.
3. Calculate Power Requirements:
– Determine the power requirements of the system, including the torque or horsepower that needs to be transmitted. This information is crucial for selecting a grooved pulley with the appropriate size, groove profile, and material construction to handle the required power load.
4. Consider Speed Ratio:
– If the application requires a specific speed ratio between the driving and driven pulleys, calculate the desired speed ratio. This information will help in selecting the pulley sizes and groove profiles that will achieve the required speed ratio.
5. Evaluate Space Constraints:
– Assess the available space for installing the grooved pulley system. Consider the diameter and width of the pulley, as well as any clearance requirements. Ensure that the selected pulley can fit within the available space without interfering with other components or causing alignment issues.
6. Assess Environmental Factors:
– Take into account the environmental conditions in which the pulley will operate. Factors such as temperature extremes, moisture, dust, or exposure to chemicals may require selecting a pulley made from specific materials or with protective coatings for enhanced durability and resistance to corrosion or wear.
7. Consult Manufacturer’s Recommendations:
– Refer to the manufacturer’s guidelines, specifications, and recommendations for the specific grooved pulley types and sizes suitable for your application. Manufacturers often provide detailed information on the load-bearing capacity, speed limits, and other performance characteristics of their pulleys.
8. Consider Specialized Features:
– Evaluate if any specialized features are required for your application. This could include crowned pulleys for belt tracking, idler pulleys for belt guidance, or adjustable pulleys for variable speed applications. Select a pulley that offers the necessary features to optimize performance and reliability.
9. Verify Compatibility:
– Double-check the compatibility between the selected grooved pulley and the belt, ensuring that they have matching profiles, dimensions, and load capacities. This step is crucial to prevent slippage, premature wear, or damage to the belt or pulley.
10. Review Cost and Availability:
– Consider the cost and availability of the chosen grooved pulley. Compare prices from different suppliers and assess the availability of spare parts or replacements to ensure long-term support for your industrial application.
By following these steps and considering the specific requirements of your industrial application, you can select the right grooved pulley that will provide efficient power transmission, reliable performance, and 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.
How do grooved pulleys contribute to the efficient transmission of power?
Grooved pulleys, also known as V-groove pulleys, play a crucial role in facilitating the efficient transmission of power in various mechanical systems. Here’s a detailed explanation of how grooved pulleys contribute to the efficient transmission of power:
1. Increased Belt Traction:
One of the primary advantages of grooved pulleys is their ability to provide enhanced belt traction. The V-shaped grooves in the pulleys create multiple contact points with the belt, increasing the friction and grip between them. This improved traction prevents belt slippage, even under high loads or torque. The increased traction ensures efficient power transfer without loss due to slipping, resulting in more reliable and effective power transmission.
2. Optimal Grip and Contact Area:
The design of grooved pulleys is precisely 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. This ensures maximum surface contact between the pulley and the belt, allowing for efficient transfer of power. The increased contact area minimizes stress concentrations and allows for the distribution of the transmitted power more evenly, reducing the risk of belt wear and prolonging the life of both the belt and the pulley.
3. Belt Alignment and Tracking:
Grooved pulleys assist in belt alignment and tracking, which further enhances power transmission efficiency. 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 result in a smooth and consistent power transmission, minimizing energy losses and improving overall efficiency.
4. Load Distribution:
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. By distributing the load more uniformly, grooved pulleys minimize the risk of belt failure and ensure efficient power transmission throughout the system.
5. Reduced Slippage and Power Loss:
Due to the enhanced traction and grip provided by the grooved pulleys, the risk of belt slippage is significantly reduced. Belt slippage can result in power loss and decreased efficiency in power transmission systems. Grooved pulleys minimize slippage, ensuring that the transmitted power is effectively transferred from the driving pulley to the driven pulley. This leads to improved overall system efficiency and reliable operation.
6. Vibration Damping:
Grooved pulleys can contribute to vibration damping in power transmission systems. The V-grooves help dampen vibrations that can occur during power transmission, reducing the associated noise and potential damage to the system. By minimizing vibrations, grooved pulleys contribute to smoother operation and improved power transmission efficiency.
7. Versatility and Compatibility:
Grooved pulleys are designed to be versatile and compatible with various belt types and sizes. They can accommodate different V-belts or V-ribbed belts, allowing for flexibility in selecting the appropriate pulley for specific power transmission requirements. This versatility ensures efficient power transmission across a wide range of applications and industries.
In summary, grooved pulleys contribute to the efficient transmission of power through increased belt traction, optimal grip and contact area, belt alignment and tracking, load distribution, reduced slippage and power loss, vibration damping, and versatility. These design features and advantages make grooved pulleys essential components in power transmission systems, ensuring reliable and efficient operation.
editor by CX
2024-03-10