China Custom Diameter 400-1800mm Pulley Conveying Machinery Manufacturers Direct Supply wholesaler

Product Description

 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.
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.
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.
 

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.

Product Name Belt Conveyor Pulley Drum
Type Drive Pulley, Bend Pulley,Snub Pulley,Take Up Pulley
Length 200mm-2500mm
Materials Carbon steel, Stainless steel, Rubber
Surface Treatment Smooth, CHINAMFG grooved lagging, Herringbone lagging, Ceramic lagging
Welding Submerged Arc Welding
Bearing Famous brands
Structure Tube,shaft,self-aligning bearing,bearing seat/house,hub, locking bushing,end disc

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:

tems 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.

 

Certification: CE, ISO
Pulley Sizes: Type F
Manufacturing Process: Casting
Material: Carbon Steel
Surface Treatment: Polishing
Application: Chemical Industry, Grain Transport, Mining Transport, Power Plant
Customization:
Available

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Customized Request

grooved pulley

Are there different types of grooved pulleys, and how do they vary in applications?

Yes, there are different types of grooved pulleys available, and they vary in their design and application based on specific requirements. The variations in grooved pulleys can be attributed to factors such as groove profile, number of grooves, material construction, and specialized features. Here is an overview of some commonly used types of grooved pulleys and their applications:

1. V-Belt Pulleys:

V-belt pulleys are one of the most prevalent types of grooved pulleys. They have a V-shaped groove profile that is compatible with V-belts, which are commonly used in power transmission applications. V-belt pulleys are suitable for transmitting moderate to high loads and are widely used in various industries, including automotive, industrial machinery, and HVAC systems.

2. Flat Belt Pulleys:

Flat belt pulleys have a flat groove profile and are designed for use with flat belts. Flat belts are used in applications where high-speed and high-power transmission is required, such as in industrial machinery, conveyor systems, and agricultural equipment. Flat belt pulleys provide a larger contact area with the belt, ensuring efficient power transfer.

3. Timing Pulleys:

Timing pulleys, also known as synchronous pulleys, have grooves with toothed profiles that match with timing belts. They are used in timing systems where precise positioning and synchronization of components are critical, such as in packaging machinery, printing presses, and robotics. Timing pulleys ensure accurate power transmission and prevent slippage or backlash.

4. Poly-V Pulleys:

Poly-V pulleys, also called serpentine pulleys, have multiple grooves with a flat or ribbed profile. They are compatible with Poly-V belts, which have multiple longitudinal ribs. Poly-V pulleys are used in applications that require high power transmission and compact design, such as automotive engines, power tools, and industrial equipment.

5. Crowned Pulleys:

Crowned pulleys have a slightly curved or crowned profile on the pulley’s surface. This design helps to center the belt and compensate for any misalignment or belt tracking issues. Crowned pulleys are commonly used in conveyor systems, where they ensure proper belt alignment, reduce friction, and prevent belt damage.

6. Idler Pulleys:

Idler pulleys are used to redirect or guide belts in a system. They do not transmit power but provide additional support and tension to the belts. Idler pulleys can have different groove profiles depending on the type of belt they guide, such as V-belts or flat belts. They are used in various applications, including automotive engines, HVAC systems, and industrial machinery.

7. Specialty Pulleys:

There are also specialty grooved pulleys designed for specific applications. For example, double-groove pulleys are used in applications where multiple belts need to be driven by a single pulley. Taper-lock pulleys allow for easy installation and removal by utilizing a tapered bushing system. Variable speed pulleys, such as adjustable or variable pitch pulleys, enable speed adjustment by changing the effective diameter of the pulley.

The selection of the appropriate grooved pulley depends on factors such as the type of belt being used, power transmission requirements, speed, load, and environmental conditions. It is essential to choose a pulley that matches the belt’s specifications, ensures proper alignment, and provides adequate tension for reliable and efficient operation.

In summary, different types of grooved pulleys, including V-belt pulleys, flat belt pulleys, timing pulleys, poly-V pulleys, crowned pulleys, idler pulleys, and specialty pulleys, are available for various applications. Each type of pulley is designed to accommodate specific belt profiles and meet specific power transmission needs, ensuring optimal performance and reliability in different industrial sectors.

grooved pulley

What role do grooved pulleys play in power transmission and conveyor systems?

Grooved pulleys, also known as V-groove pulleys, play a crucial role in both power transmission and conveyor systems. Here’s a detailed explanation of the role of grooved pulleys in these systems:

1. Power Transmission Systems:

In power transmission systems, grooved pulleys are used to transmit mechanical power from one rotating shaft to another. The primary function of grooved pulleys in power transmission is to transfer torque and rotational motion between the driving and driven components. Here’s how grooved pulleys contribute to power transmission:

a. Belt Traction and Grip:

Grooved pulleys provide increased belt traction and grip, ensuring efficient power transfer. The V-shaped grooves in the pulleys match the corresponding shape of V-belts or V-ribbed belts, creating multiple contact points. This enhanced grip minimizes slippage, allowing the pulleys to transmit power effectively without power loss due to belt slippage.

b. Belt Alignment and Tracking:

The grooves in the pulleys help in aligning and tracking the belt during operation. The V-grooves guide the belt, keeping it centered on the pulley. This alignment feature prevents the belt from wandering or slipping off the pulley, ensuring smooth and consistent power transmission. Proper belt alignment also helps in reducing wear and extending the belt’s lifespan.

c. Load Distribution:

Grooved pulleys facilitate even load distribution across the belt’s surface. The shape and size of the grooves influence the contact area between the pulley and the belt. A wider and deeper groove allows for a larger contact area, distributing the transmitted load more evenly. This even load distribution minimizes stress concentrations on specific points of the belt, reducing the risk of belt failure and ensuring reliable power transmission.

d. Belt Type Compatibility:

Grooved pulleys are designed to be compatible with various types of belts, such as V-belts, V-ribbed belts, timing belts, or even flat belts. The dimensions and shape of the grooves are specifically designed to accommodate the corresponding belt type. This compatibility allows for flexibility in selecting the appropriate pulley and belt combination based on the power transmission requirements of the system.

2. Conveyor Systems:

Grooved pulleys also play a significant role in conveyor systems, which are widely used in industries for the movement of materials or products. Here’s how grooved pulleys contribute to the functioning of conveyor systems:

a. Belt Tensioning and Tracking:

Grooved pulleys help in tensioning and tracking the conveyor belt. The V-grooves in the pulleys provide a guiding path for the belt, ensuring proper alignment and preventing the belt from slipping off the pulley during operation. This helps maintain the tension in the belt and keeps it centered on the pulley, allowing for efficient and reliable material transport.

b. Belt Drive and Speed Control:

In conveyor systems, grooved pulleys are often used as drive pulleys. The motor or power source drives the pulley, which, in turn, drives the conveyor belt. By adjusting the speed of the motor or changing the pulley size, the speed and direction of the conveyor belt can be controlled. This allows for precise material handling and control within the conveyor system.

c. Load Support and Belt Stabilization:

Grooved pulleys provide support and stability to the conveyor belt. The grooves in the pulleys help distribute the load evenly across the belt’s width, preventing sagging or excessive belt deformation. This ensures smooth and consistent material transport and prevents the belt from slipping or getting damaged, especially when handling heavy loads or operating at high speeds.

d. Belt Cleaning and Maintenance:

Grooved pulleys can also assist in belt cleaning and maintenance in conveyor systems. The grooves in the pulleys allow for the attachment of cleaning accessories, such as scrapers or brushes, which help remove debris or material residue from the belt surface. This promotes proper belt hygiene, reduces the risk of contamination, and extends the belt’s lifespan.

In summary, grooved pulleys play a critical role in both power transmission and conveyor systems. In power transmission, they facilitate efficient torque transfer, ensure belt traction and grip, align and track the belt, distribute the load evenly, and offer compatibility with various belt types. In conveyor systems, grooved pulleys aid in belt tensioning and tracking, drive and speed control, load support and stabilization, as well as belt cleaning and maintenance. The proper selection and use of grooved pulleys contribute to the reliable and efficient operation of these systems.

grooved pulley

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.

China Custom Diameter 400-1800mm Pulley Conveying Machinery Manufacturers Direct Supply   wholesaler China Custom Diameter 400-1800mm Pulley Conveying Machinery Manufacturers Direct Supply   wholesaler
editor by CX

2023-11-02