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-tm .tm-status-off{background: none;padding:0;color: #1470cc}
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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 are grooved pulleys used in the production of packaging and labeling machinery?
Grooved pulleys play a crucial role in the production of packaging and labeling machinery. These pulleys are utilized in various ways to facilitate the movement, control, and synchronization of components and materials involved in the packaging and labeling processes. Here’s a detailed explanation of how grooved pulleys are used in the production of packaging and labeling machinery:
1. Belt Conveyors:
Grooved pulleys are commonly employed in belt conveyors used in packaging and labeling machinery. Belt conveyors are used to transport products or materials along a defined path within the production line. The grooved pulleys, along with corresponding belts, provide the necessary traction and support to move the items smoothly and efficiently. By adjusting the diameter and positioning of the grooved pulleys, the speed and direction of the conveyor belts can be controlled, allowing for precise movement and positioning of the packages or labels.
2. Timing Systems:
In packaging and labeling machinery, timing is crucial to ensure accurate placement of labels, synchronized filling of containers, or precise cutting and sealing of packaging materials. Grooved pulleys are utilized in timing systems to maintain proper synchronization between different components and processes. By using grooved pulleys in conjunction with timing belts or chains, the rotational motion and positioning of various machine parts can be coordinated, ensuring precise and timed actions.
3. Tensioning Mechanisms:
Grooved pulleys are employed in tensioning mechanisms within packaging and labeling machinery. These mechanisms are used to maintain proper tension in belts or chains, preventing slippage or excessive looseness. The grooved pulleys, along with tensioning devices such as springs or adjustable mounts, ensure that the belts or chains stay taut and provide consistent power transmission. This helps maintain the accuracy and efficiency of the packaging and labeling processes.
4. Label Dispensing and Rewinding:
In labeling machinery, grooved pulleys are utilized in label dispensing and rewinding systems. The labels are typically wound on a roll, and the grooved pulleys are used to guide the label web, control its tension, and ensure smooth unwinding or rewinding. The grooves in the pulleys help maintain proper alignment and prevent the labels from slipping or skewing during the dispensing or rewinding process. This ensures accurate placement and alignment of labels on packaging materials.
5. Adjustable Guide Rails:
Grooved pulleys are also employed in adjustable guide rail systems used in packaging machinery. These guide rails are used to guide and position packages or containers as they move along the production line. The grooved pulleys, along with corresponding guide rail belts or chains, allow for precise adjustment and movement of the guide rails. This enables the packaging machinery to accommodate different package sizes and shapes, ensuring proper alignment and stability during the packaging or labeling process.
6. Rotary Cutting and Sealing:
In packaging machinery, grooved pulleys are utilized in rotary cutting and sealing systems. These systems are used to cut and seal packaging materials such as films or bags. The grooved pulleys, along with belts or chains, provide the rotational motion required for the cutting and sealing mechanisms. The grooves in the pulleys help maintain proper alignment and tension of the belts or chains, ensuring precise and consistent cutting and sealing of the packaging materials.
7. Speed Control:
Grooved pulleys are used in speed control systems within packaging and labeling machinery. By adjusting the diameter or position of the grooved pulleys, the speed of various machine components can be controlled. This is particularly important in processes where different speeds are required, such as adjusting the speed of the labeling head or the packaging material feed. The grooved pulleys enable precise speed adjustments, allowing for efficient and synchronized operation of the machinery.
8. Rotary Indexing Systems:
Rotary indexing systems are often used in packaging and labeling machinery to position products or containers accurately for specific operations. Grooved pulleys are utilized in these systems to provide the rotational motion and control the indexing or positioning movement. The grooves in the pulleys help maintain the alignment and synchronization of the indexing components, ensuring precise and repeatable positioning of the products or containers.
In summary, grooved pulleys are widely used in the production of packaging and labeling machinery. They are utilized in belt conveyors, timing systems, tensioning mechanisms, label dispensing and rewinding systems, adjustable guide rail systems, rotary cutting and sealing systems, speed control systems, and rotary indexing systems. These pulleys enable smooth movement, precise synchronization, accurate positioning, and efficient power transmission, contributing to the reliable and high-performance operation of packaging and labeling machinery.
How do grooved pulleys impact the performance of industrial drives and motors?
Grooved pulleys play a significant role in the performance of industrial drives and motors. They contribute to the efficiency, power transmission capabilities, and overall reliability of the systems. Here’s a detailed explanation of how grooved pulleys impact the performance:
1. Power Transmission:
Grooved pulleys are crucial components in power transmission systems. They are designed to work in conjunction with belts, such as V-belts or timing belts, to transmit power from the motor to driven components. The grooves in the pulleys provide a secure grip on the belt, ensuring optimal power transfer and minimizing slippage. This efficient power transmission results in improved overall system performance.
2. Belt Traction and Grip:
The grooves in the pulleys create contact points with the belt, enhancing traction and grip. This is particularly important in applications where high torque or heavy loads are involved. The grooved design helps prevent belt slippage, ensuring that the rotational motion from the motor is effectively transferred to the driven components. The improved traction provided by grooved pulleys enhances the efficiency and reliability of industrial drives and motors.
3. Load Distribution:
Grooved pulleys aid in distributing the load evenly across the width of the belt. The V-shaped grooves in grooved pulleys help to center the belt and ensure that the load is evenly distributed, reducing stress concentration on specific points. This balanced load distribution minimizes wear and fatigue on the belt, pulleys, and other components, resulting in extended service life and improved performance.
4. Belt Tracking and Alignment:
The grooves in grooved pulleys help guide and track the belt, ensuring proper alignment. The V-shaped grooves provide a self-centering mechanism, keeping the belt in the correct position and preventing it from wandering or slipping off the pulley. Proper belt tracking and alignment are crucial for smooth operation, reduced vibrations, and minimized wear on the belt and pulley surfaces.
5. Speed Ratio and Torque:
The size and configuration of the grooved pulleys can be used to control the speed ratio and torque in the power transmission system. By selecting pulleys with different diameters or groove profiles, the speed ratio between the motor and driven components can be adjusted. This allows for customization of the system to meet specific speed or torque requirements, optimizing the performance for different applications.
6. Noise and Vibration Reduction:
Grooved pulleys contribute to reducing noise and vibrations in industrial drives and motors. The proper alignment and grip provided by the grooves minimize belt slippage and associated vibrations. This results in smoother operation and reduced noise levels, creating a more comfortable working environment and minimizing the potential for damage or wear on surrounding equipment.
7. Overload Protection:
Grooved pulleys can act as a point of overload protection in power transmission systems. In the event of sudden load spikes or excessive torque, the belt may slip within the grooves of the pulley, absorbing the excess energy and preventing damage to the motor or driven components. This overload protection mechanism helps safeguard the system and prolong its lifespan.
8. Maintenance and Serviceability:
Grooved pulleys are designed for easy maintenance and serviceability. Belt replacement or adjustments can be performed more efficiently due to the grooved design, which facilitates quick installation and removal of the belt. This reduces downtime during maintenance activities and contributes to overall system productivity.
In summary, grooved pulleys have a significant impact on the performance of industrial drives and motors. They ensure efficient power transmission, enhance belt traction and grip, facilitate load distribution and belt alignment, allow for speed and torque control, reduce noise and vibration levels, provide overload protection, and offer convenient maintenance and serviceability. By selecting the appropriate grooved pulleys and optimizing their design, the performance, reliability, and longevity of industrial drives and motors can be greatly improved.
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
2024-04-24