China manufacturer Hot Sale Lagging Rubber Sheet Pulley Grooved Drum Coated Conveyor Roller Drum Pulley for Energy & Mining pulley bearing

Product Description

Hot Sale Lagging Rubber Sheet Pulley Grooved Drum Coated Conveyor Roller Drum Pulley for Energy & Mining

Product Description

The drum is the main component that transmits power. It is divided into 3 types according to their load-carrying capacity: light, medium and heavy.
Light: Bearing aperture 80-100mm, the shaft and hub are single-width plate welded cylinder structure connected by single key.
Medium: Bearing aperture 120-180mm, the shaft and hub are expansion sleeve connection.
Heavy: Bearing aperture 200-220mm, the shaft and hub are expansion sleeve connection, and the drum body is cast-welded structure.
Conveyor pulley stays at 2 ends of belt machine. The pulley can be divided into 2 categories: Driving pulley and averting pulley, driving pulley is the main part for transmitting the power and there are 2 kinds of pulley sets: Smooth surface and rubber surface, and rubber surface can be classified into smooth rubber surface, herringbone rubber surface and CHINAMFG rubber surface to meet different technical requirements. Averting pulley can be classified into smooth rubber surface and smooth steel surface.

Technical Parameters

Driving Pulley (rubber surface)
Belt Width  Standard Diameter of Pulley 
500 mm 500mm
650 mm 500mm,630 mm
800 mm 500mm,630mm,800mm,1000mm,1250mm,1400 mm
1000 mm 630mm,800mm,1000mm,1250mm,1400 mm
1200 mm 630mm,800mm,1000mm,1250mm,1400 mm
1400 mm 630mm,800mm,1000mm,1250mm,1400 mm
1600 mm 630mm,800mm,1000mm,1250mm,1400 mm
1800 mm 630mm,800mm,1000mm,1250mm,1400 mm
2000 mm 800mm,1000mm,1250mm,1400 mm
2200 mm 1000mm,1250mm,1400 mm
2400 mm 1000mm,1250mm,1400 mm

 

Bend Pulley (smooth surface & rubber surface)
Belt Width Standard Diameter of Pulley (mm)
500 mm 250,315,400,500
650 mm 250,315,400,500,630
800 mm 25,031,540,050,063,000,000,000,000
1000 mm 250,315,400,500,630,000,000,000,000,000
1200 mm 250,315,400,500,630,000,000,000,000,000
1400 mm 315,400,500,630,800,000,000,000,000
1600 mm 400,500,630,800,100,000,000,000
1800 mm 400,500,630,800,100,000,000,000
2000 mm 500,630,800,100,012,000,000
2200 mm 630,800,100,012,501,000
2400 mm 800,100,012,501,400

 

Pulley Standard
Brand SPD
Specification SPD-CP-0001
Certificate ISO/BV/SGS
Standard CEMA/JIS/DIN/Australia
Application Coal mining industry, cement, steel, harbour etc.
Place of Origin HangZhou City , ZheJiang Province , China
Material Feature Water, Wear, Dust resistance
Supply capacity 80PCS/month
Management system ISO 9001:2008,ISO 14001:2004,GB/T 28001-2001

Project Performance

Main Equipment & Facilitys

Industry products research and manufacture. Over 70 designers are responsible for the research and development of professional port handling systems, vessels, steel structures, and modular house businesses. Port handling system mainly involves belt and pipe conveyor systems, stackers, rollers, pulleys and other parts. Shipping products include types of tugboats, product oil tankers, oil spill disposal ships and other offshore oilfield service ships; marine leveling barges, dredgers, and other engineering vessels. We have also designed and rebuilt the first offshore mariculture platform in China, several recreational platforms and other marine fishery equipment.

New building materials processing business. The main products include color-coated sheets for home appliances and building construction, precision stamping parts. The new building materials products of RPIC is the PUR sandwich panel, rock wool sandwich panel. At the same time, RPIC has designed a variety of prefabricated houses, which can be widely used for vacation and camping housing, urban construction housing, make-shift housing, medical, exhibition, and other temporary housing fields.

Steel structure and equipment manufacturing. With the annual production capacity of steel structure for about 100,000 tons, RPIC’s business markets involve the equipment steel structure, public infrastructure, bridge steel structure, space steel structure and so on. We have successively undertaken projects of Ore Wharf belt Conveyor System in HangZhou Port and the HUANENG Power Plant Belt Conveyor Engineering, accumulating to more than 200 million square CHINAMFG of industrial workshop construction. 

 Maintenance of ship and mechanical & electrical equipment. RPIC has over 30 years’ experience in port equipment operation and maintenance. RPIC is the only enterprise specialized in port handling system and equipment maintenance business in HangZhou city and has successfully repaired and transformed CHINAMFG research ships, dredgers, floating dry dock, tugboat, and other types of ships.

FAQ

Q1:Can you send samples?

A:Of course, we can provide customers with free samples but customer should pay the courier fee.

Q2:What product information do I need to provide?

A:Please kindly provide the grade, width, thickness, surface treatment requirement  and quantities you need to purchase.

Q3:What is your terms of payment ?

A: 30% T/T in advance ,balance before shipment or 100% LC at sight.

Q4.Do you provide customer made Products service?

A: Yes,if you have your own design , we can produce according to your specification and drawing.

Q5:How long does your delivery time take?

A:In general, our delivery time is within 7-15 days, and may be longer if the quantity is extremely large or special circumstances occur.

Q6: How many countries you already exported to?

A:We have exported to America, Canada, Brazil, Chile, Colombia, Thailand, Myanmar, Vietnam,  and other African countries.Our export experience is rich, we familiar with different market demands, can help customers avoid a lot of trouble.

Q7:Can I go to your factory to visit?

A:Of course, we welcome customers from all over the world to visit our factory.

Q8:Does the product have quality inspection before loading?

A:Of course, all our products are strictly tested for quality before packaging,  customers can appoint third parties to inspect the products before loading too.

Q9:How to pack the products?

A: Standard export sea-worthy packaging, the inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation wooden pallet. It can effectively protect products from corrosion and various climate changes during CHINAMFG transportation.

Q10:What is your working time?

A:In general, our online service time is ZheJiang time: 8:00-22:00, after 22:00, we will reply to your inquiry in the coming working day.

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Material: Carbon Steel
Surface Treatment: Polishing
Motor Type: Frequency Control Motor
Customization:
Available

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Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

spring pulley

What are some real-world examples of spring pulley systems in action?

Spring pulley systems find applications in various real-world scenarios, where they are used to provide mechanical advantage, tension control, and motion control. Here are some examples of spring pulley systems in action:

  1. Weightlifting Equipment: Spring pulley systems are commonly used in weightlifting machines and equipment. They are employed to provide adjustable resistance and assist users in lifting weights. By incorporating spring pulleys, the resistance can be adjusted to match the user’s strength and fitness level, providing a challenging workout while reducing the risk of injury.
  2. Exercise Machines: Many exercise machines, such as cable-based strength training equipment and resistance exercise devices, utilize spring pulley systems. These systems allow users to perform a variety of exercises while adjusting the resistance level through the use of spring-loaded pulleys. The pulleys help create a smooth and controlled resistance, enhancing the effectiveness of the workout.
  3. Window Blinds and Shades: Spring pulley systems are utilized in window blinds and shades to control their movement and positioning. The springs in these systems provide tension and assist in raising or lowering the blinds or shades. The tension ensures that the blinds or shades remain in the desired position and can be easily adjusted by the user.
  4. Elevator Systems: Elevator systems often incorporate spring pulley systems to provide counterweight and balance. Tensioned springs are used to offset the weight of the elevator car, reducing the load on the motor and improving efficiency. These spring pulley systems contribute to smooth and controlled vertical movement of the elevator, ensuring passenger safety and comfort.
  5. Industrial Machinery: Spring pulley systems are extensively employed in various industrial machinery and equipment. For example, conveyor systems in manufacturing plants utilize spring pulleys to drive and control the movement of belts or chains, enabling the efficient transportation of materials or products. Similarly, printing presses, packaging machines, and textile machinery often incorporate spring pulleys for motion control and tensioning purposes.
  6. Garage Doors: As mentioned in a previous response, garage door systems utilize spring pulleys to assist in opening and closing the doors. Torsion springs, acting as spring pulleys, counterbalance the weight of the doors, making them easier to operate manually or with the assistance of a garage door opener. The tension provided by the spring pulleys ensures smooth and controlled movement of the garage doors.
  7. Stage Rigging: Spring pulley systems are utilized in stage rigging applications to control the movement and positioning of theatrical equipment, such as curtains, lighting fixtures, and scenery. These systems employ spring pulleys to provide tension and balance, allowing for precise control and smooth transitions during performances.

In summary, spring pulley systems are employed in a wide range of real-world applications. They can be found in weightlifting equipment, exercise machines, window blinds, elevator systems, industrial machinery, garage doors, and stage rigging. These systems utilize spring pulleys to provide tension, motion control, counterbalancing, and assistance in various mechanical operations, contributing to improved performance, safety, and user experience in different industries and everyday situations.

spring pulley

How does the spring tension in a pulley affect its performance?

The spring tension in a pulley plays a significant role in determining its performance characteristics and functionality. The tension in the spring affects various aspects of the pulley’s operation and can have a direct impact on its efficiency, reliability, and effectiveness. Let’s explore how the spring tension in a pulley affects its performance:

1. Belt Tension: The spring tension in a pulley is primarily responsible for maintaining the appropriate tension in the belt or cable running on the pulley. Proper belt tension is essential for efficient power transmission and preventing belt slippage. The spring tension in the pulley ensures that the belt remains adequately tensioned, optimizing power transfer and preventing premature wear or damage to the belt and associated components.

2. Load Capacity: The spring tension in a pulley determines its load capacity. Higher spring tension allows the pulley to handle greater loads without compromising its performance. The spring tension provides the necessary resistance against the force applied by the belt or cable, enabling the pulley to support heavier loads without excessive deflection or deformation. Adequate spring tension ensures that the pulley can withstand the required loads and function reliably under various operating conditions.

3. Friction and Slip: The spring tension in a pulley affects the friction and slip characteristics during operation. Insufficient spring tension may result in inadequate friction between the belt and the pulley, leading to slip. On the other hand, excessive spring tension can increase friction beyond optimal levels, causing unnecessary wear on the belt and generating excessive heat. The spring tension should be carefully adjusted to achieve the right balance of grip and minimal slip, ensuring efficient power transmission and reducing unnecessary wear and energy loss.

4. Pivoting and Oscillation: Some pulleys, such as tensioners or idler pulleys, are designed to pivot or oscillate to maintain belt tension and alignment. The spring tension in these pulleys determines the amount of force required to initiate and control the pivoting or oscillating motion. The appropriate spring tension allows the pulley to respond to belt movements and fluctuations, maintaining optimal belt tension and alignment throughout the operation. It helps absorb vibrations and ensures smooth and stable belt operation.

5. Belt Lifespan: The spring tension in a pulley can significantly impact the lifespan of the belt or cable. Insufficient tension may result in belt slippage, increased wear, and premature failure. Excessive tension can strain the belt, causing accelerated wear, increased stress on the pulley bearings, and reduced overall durability. By maintaining the proper spring tension, the pulley helps extend the lifespan of the belt or cable, minimizing the need for frequent replacements and reducing maintenance costs.

6. Noise and Vibration: The spring tension in a pulley can influence the level of noise and vibration generated during operation. Improper tension can lead to belt flutter, excessive vibrations, and noise. The correct spring tension helps dampen vibrations, reducing noise and creating a smoother and quieter operation. It contributes to a more comfortable and stable user experience and ensures that the pulley operates within acceptable noise and vibration levels.

7. Adjustability and Functionality: Spring tension provides adjustability and flexibility in pulley systems. By modifying the spring tension, the tension in the belt or cable can be adjusted to accommodate different loads, operating conditions, or specific application requirements. This adjustability enhances the functionality of the pulley system, allowing for customization and optimization of performance based on the specific needs of the application.

8. Response Time and Control: The spring tension in certain pulleys, such as those used in automatic tensioners or decoupler systems, affects the response time and control of the pulley mechanism. The spring tension determines how quickly the pulley engages or disengages, responds to changes in load or operating conditions, and maintains optimal belt tension. A well-calibrated spring tension ensures smooth and rapid response, enhancing the overall performance and functionality of the pulley system.

In summary, the spring tension in a pulley has a significant impact on its performance characteristics, including belt tension, load capacity, friction, slip, pivoting, oscillation, belt lifespan, noise and vibration levels, adjustability, response time, and control. Proper spring tension is essential for achieving optimal performance, efficiency, and reliability in pulley systems, ensuring efficient power transmission, minimizing wear, and maximizing the lifespan of belts and associated components.

spring pulley

How does the spring mechanism work in a spring pulley system?

The spring mechanism in a spring pulley system plays a crucial role in maintaining proper tension in belts or cables. It utilizes the properties of a spring to provide controlled and adjustable tension. Let’s explore how the spring mechanism works in a spring pulley system:

When a spring pulley is designed, a spring is integrated into its structure. The spring can be in the form of a coil spring, a leaf spring, or any other type of spring mechanism. The spring is typically positioned in a way that it exerts a specific amount of force on the pulley or the belt/cable it is connected to.

Here’s how the spring mechanism works within a spring pulley system:

1. Initial Tension: When the spring pulley system is assembled, the spring is preloaded with an initial tension. This tension ensures that there is sufficient force exerted on the belt or cable to prevent slackness or slippage under normal operating conditions.

2. Automatic Tension Adjustment: As the belt or cable operates and experiences variations in tension, stretching, or load fluctuations, the spring mechanism in the pulley adjusts automatically. If the tension in the belt or cable decreases due to stretching or load changes, the spring expands to compensate for the reduction in tension and maintain the desired level of tension. Similarly, if the tension increases, the spring compresses to prevent excessive tension that could lead to belt or cable damage.

3. Energy Storage and Release: The spring in the pulley system acts as an energy storage device. When the tension in the belt or cable decreases, the spring expands, storing potential energy. This stored energy is then released as the tension increases, allowing the spring to contract and apply the necessary force to maintain the desired tension level.

4. Tension Adjustability: Many spring pulley systems offer tension adjustability. This is achieved by incorporating mechanisms such as set screws, locking nuts, or movable components that allow users to modify the compression or position of the spring. By adjusting these mechanisms, the tension provided by the spring can be fine-tuned or modified to suit the specific requirements of the application.

5. Spring Types and Characteristics: The selection of the spring type and its characteristics depend on the specific application requirements. Coil springs, for example, provide linear force and are commonly used in spring pulley systems. Leaf springs, on the other hand, offer a more flexible and controllable force. The choice of the spring material, size, and design parameters all contribute to the overall performance and functionality of the spring pulley system.

The spring mechanism in a spring pulley system ensures that the tension in the belt or cable remains consistent, regardless of variations in load, stretching, or other factors. It provides automatic tension adjustment, energy storage and release, and adjustability, contributing to the efficient and reliable operation of the system.

China manufacturer Hot Sale Lagging Rubber Sheet Pulley Grooved Drum Coated Conveyor Roller Drum Pulley for Energy & Mining   pulley bearing	China manufacturer Hot Sale Lagging Rubber Sheet Pulley Grooved Drum Coated Conveyor Roller Drum Pulley for Energy & Mining   pulley bearing
editor by CX

2023-12-25