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: | Carbon Steel |
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| Surface Treatment: | Baking Paint |
| Motor Type: | Frequency Control Motor |
| 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 are belt pulleys employed in agricultural machinery and equipment?
Belt pulleys play a crucial role in agricultural machinery and equipment, contributing to various functions and operations in the agricultural industry. They are used in a wide range of applications, from power transmission and driving different agricultural implements to controlling the speed and functionality of various systems. Here's a detailed explanation of how belt pulleys are employed in agricultural machinery and equipment:
1. Power Transmission: Belt pulleys are extensively used for power transmission in agricultural machinery. They serve as the driving force to transfer power from the tractor's power take-off (PTO) to different agricultural implements. The PTO pulley, connected to the tractor's PTO shaft, drives the belt, which, in turn, drives the pulleys on the implements, such as mowers, balers, harvesters, and seeders. This power transmission enables the implements to perform their specific functions effectively.
2. Crop Harvesting and Processing: Belt pulleys are employed in various agricultural machinery involved in crop harvesting and processing. For example, in combine harvesters, belt pulleys are used to drive the cutting mechanism, threshing drum, and grain conveyors. The rotation of the pulleys enables the harvesting and separation of crops from the fields. In processing equipment like grain elevators and conveyors, belt pulleys facilitate the movement of harvested crops for storage or further processing.
3. Irrigation Systems: Belt pulleys are utilized in irrigation systems in agriculture. In irrigation pumps, belt pulleys connect the pump's drive shaft to the power source, such as an electric motor or a tractor's PTO. The rotation of the pulleys drives the pump, which boosts water pressure and facilitates irrigation by distributing water to crops through sprinklers, drip lines, or other irrigation methods.
4. Feed and Forage Processing: Belt pulleys are employed in machinery used for feed and forage processing in the agricultural industry. For instance, in feed mixers, belt pulleys drive the mixing auger or paddle mechanism, ensuring thorough blending of different feed ingredients. In forage choppers or silage harvesters, belt pulleys drive the cutting mechanism and the feed rollers, enabling the efficient harvesting and chopping of forage crops.
5. Livestock Equipment: Belt pulleys are used in various livestock equipment and machinery. In milking machines, belt pulleys drive the vacuum pump, creating suction for milking cows. Conveyor systems for livestock feed or manure management also employ belt pulleys to transport feed or handle manure efficiently. Additionally, in barn ventilation systems, belt pulleys drive the fans, facilitating air circulation and maintaining optimal environmental conditions for livestock.
6. Speed Control and Functionality: Belt pulleys are utilized to control the speed and functionality of different agricultural machinery. By using pulleys of varying sizes or adjusting the pulley arrangement, the speed of the driven implements or systems can be modified to suit specific agricultural operations. This allows for customization and adaptability in tasks such as soil cultivation, planting, spraying, and material handling.
7. Custom Applications: Belt pulleys are also employed in custom applications in agriculture, depending on specific requirements. Farmers and equipment manufacturers may design and incorporate belt pulleys in unique ways to drive specialized equipment, such as conveyor systems, grain cleaners, hay baling systems, or other agricultural machinery tailored to their specific needs.
In summary, belt pulleys have diverse applications in agricultural machinery and equipment. From power transmission and driving agricultural implements to controlling speed, facilitating crop harvesting and processing, supporting irrigation systems, and enabling functionality in various equipment, belt pulleys play a vital role in optimizing agricultural operations and enhancing productivity in the agricultural industry.
What types of belts are commonly used with belt pulleys?
Several types of belts are commonly used in conjunction with belt pulleys for power transmission in various applications. The choice of belt depends on factors such as the specific requirements of the machinery, the desired power transmission characteristics, environmental conditions, and the type of pulley system being used. Here are some of the most commonly used types of belts:
1. V-Belts: V-belts, also known as Vee belts, are one of the most widely used types of belts with belt pulleys. They have a trapezoidal cross-section and typically feature a fabric cover and a rubber-like compound. V-belts are known for their high grip and power transmission capabilities, making them suitable for applications with moderate to high loads and speeds. They are commonly used in industries such as automotive, industrial machinery, and HVAC systems.
2. Timing Belts: Timing belts, also called synchronous belts, have toothed profiles on the inner side that engage with corresponding teeth on the pulley. This toothed design provides precise power transmission and prevents slippage. Timing belts are commonly used in applications that require precise synchronization of shafts and accurate positioning, such as in robotics, printing machinery, and automotive engines.
3. Flat Belts: Flat belts have a rectangular cross-section and are typically made of materials such as rubber, fabric, or synthetic compounds. They are flexible and can be easily customized to various lengths. Flat belts are commonly used in applications where high speeds and low power transmission requirements are present, such as in conveyor systems, textile machinery, and packaging equipment.
4. Round Belts: Round belts, also known as round O-ring belts, are circular belts made of materials such as rubber or urethane. They are flexible and can be easily joined to form endless loops. Round belts are commonly used in applications that require a lightweight and flexible power transmission solution, such as in small appliances, office equipment, and material handling systems.
5. Ribbed Belts: Ribbed belts, also called multi-rib belts or serpentine belts, have a ribbed or grooved design on the inner side. These ribs engage with corresponding grooves on the pulley, providing increased contact area and improved power transmission efficiency. Ribbed belts are commonly used in automotive engines, where they drive multiple accessories such as alternators, power steering pumps, and air conditioning compressors.
6. Variable Speed Belts: Variable speed belts, also known as adjustable speed belts or link belts, are made of individual links or segments that can be easily connected or disconnected to adjust the belt length. This allows for stepless speed variation and flexibility in power transmission. Variable speed belts are commonly used in applications where speed adjustment is required, such as in milling machines, woodworking equipment, and industrial conveyors.
These are just a few examples of the types of belts commonly used with belt pulleys. Each type of belt has its own unique characteristics and is suitable for specific applications based on factors such as load capacity, speed requirements, precision, and environmental conditions. The selection of the appropriate belt is crucial to ensure efficient and reliable power transmission in the machinery and equipment utilizing belt pulleys.
What advantages do belt pulleys offer for efficient power transmission?
Belt pulleys offer several advantages that contribute to efficient power transmission in a variety of applications. These advantages make belt pulleys a popular choice for transmitting power in numerous industries. Here are some key advantages of using belt pulleys:
1. High Efficiency: Belt pulleys can achieve high power transmission efficiency. The materials used for pulleys, such as metals or composite materials, are selected for their strength and low friction characteristics. This allows for minimal energy loss during power transmission, resulting in efficient operation and reduced energy consumption.
2. Smooth and Quiet Operation: Belt pulleys provide smooth and quiet operation compared to some other power transmission methods. The flexibility of belts helps in dampening vibrations and reducing noise levels. This is particularly beneficial in applications where noise reduction is important, such as in residential areas, offices, and certain types of machinery.
3. Slip Prevention: Belt pulleys offer slip prevention features, ensuring reliable power transmission. The design of the pulley's groove and the corresponding belt shape create a positive engagement that helps prevent the belt from slipping during operation. This is particularly advantageous in high-torque applications where maintaining a consistent power transfer is crucial.
4. Overload Protection: Belt pulleys can provide a certain degree of overload protection. In the event of sudden load spikes or jamming of the driven system, the belt can slip or deform slightly, absorbing the shock and protecting the machinery from damage. This inherent flexibility acts as a safety feature, preventing catastrophic failures and reducing the risk of equipment breakdown.
5. Misalignment Compensation: Belt pulleys can accommodate minor misalignments between the driving and driven shafts. The flexibility of the belt allows for slight angular and parallel misalignments, which can naturally occur in machinery due to manufacturing tolerances, thermal expansion, or other factors. This ability to compensate for misalignment helps to minimize stress on bearings and prolong the lifespan of the system.
6. Speed Variation: Belt pulleys provide the flexibility to achieve different speed ratios by simply changing pulley sizes or adjusting the position of variable speed pulleys. This feature allows for speed variation and control in various applications, facilitating the optimization of machine performance and enabling adaptability to different operating conditions.
7. Cost-Effective: Belt pulleys are generally cost-effective compared to some other methods of power transmission. They are relatively simple in design, easy to manufacture, and require less precision than certain alternatives. Additionally, belts are generally less expensive to replace than other types of power transmission components, resulting in lower maintenance costs.
Overall, belt pulleys offer advantages such as high efficiency, smooth and quiet operation, slip prevention, overload protection, misalignment compensation, speed variation, and cost-effectiveness. These advantages make belt pulleys a reliable and versatile choice for efficient power transmission in a wide range of applications across various industries.
editor by CX
2024-01-16