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Metallic conveyor belt pulleys are critical to the look of any automated conveyor belt system. They become the driving force behind the movement of the belt, making torque and velocity. In very general conditions it can be stated that pulleys are categorized as friction drive or timing pulleys (type I and II). Precision may be the name of the game when it comes to pulleys. A metallic belt is only as good and exact as the pulleys. The majority of pulleys recommended by Ever-power are constructed with anodized aluminum (hard coat) with the right friction coefficient to drive the metallic belt. Stainless steel may also be used but it is pricey and heavy, although it might become indicated in certain applications where extra hardness is necessary. If your application takes a lighter pulley, the professionals at Ever-power will help you select the best material.
Selecting the correct pulley size and configuration can have a significant effect on the lifespan and performance of a conveyor belt. Ever-power engineers possess the data and experience to assist you choose the correct pulley type, diameter, and composition to reduce maintenance downtime and maximize product volume.
Metal Conveyor Belt Pulley Types
Ever-power designs custom metal conveyor belt pulleys and configurations to bring maximum efficiency to one’s body. While metal conveyor belts are usually made of stainless steel, pulleys can be produced from a variety of materials, including aluminium or a variety of plastic composites. Depending on the unique needs of one’s body, the pulleys can also be fitted with custom timing attachments, relief stations, and more.
Independently Steerable Pulley
Ever-power has developed an innovative concept in toned belt tracking called the ISP (independently steerable pulley), which can be utilized in the following system designs:
· Two pulley conveyor systems where the ISP is the idler or driven pulley
· Systems with multiple idler pulleys on a common shaft
· Systems with serpentine or various other complex belt paths
Steering flat belts with an ISP is founded on the concept of changing tension associations across the width of the belt by adjusting the angle of the pulley in accordance with the belt.
Rather than moving the pulley shaft still left/right or up/straight down by pillow prevent adjustment, the ISP fits a adjustable steering collar and sealed bearing assembly to the body of the pulley.
The steering collar is designed with the skewed or an offset bore. When rotated, the collar changes the position of the pulley body, leading to controlled, bi-directional movement of the belt across the pulley face.
The ISP is exclusively available from Ever-power. It offers a simple approach to steering flat metal belts. Users may combine ISP steering with the original belt tracking designs of crowning, flanging, and timing components to make a synergistic belt tracking system which effectively and exactly steers the belt to specified tracking parameters.
Unique Characteristics and Benefits of the ISP
· Flat belts are tracked quickly by rotating the steering collar.
· ISP designs minimize downtime when replacing belts on creation machinery.
· ISP system is easy to use and requires no special tools or teaching.
· ISP simplifies the look and assembly of conveyor systems using smooth belts.
· Existing idler pulleys may normally be retrofitted to an ISP without major system modifications.
· No maintenance is necessary once the belt tracking parameters have been established.
· It prolongs belt lifestyle by minimizing part loading when using flanges and timing pulleys.
ISP Pulley (picture and cross-section view)
Installation and Use
The ISP is mounted to the machine frame using commercially available pillow blocks. A clamp can be used to prevent the shaft from turning.
The Rotated Shaft Approach to ISP Flat Belt Tracking
· Is used with systems having a single pulley on the shaft.
· Is ALWAYS utilized when the pulley body is a capped tube style.
· Is NEVER utilized when multiple pulleys are on a common shaft.
· Used selectively when the ISP is definitely a steering roll in a multiple pulley system.
Secure the ISP to the shaft using the split training collar and locking screw built into the ISP. Rotate the shaft and collar as a device. When the desired tracking features are obtained, avoid the shaft from rotating by securing the shaft clamp. The pulley body will now rotate about the bearing included in the ISP assembly. This method enables the belt to end up being tracked while running under tension.
Secure the ISP to the shaft using the split training collar and locking screw built into the ISP. Rotate the shaft and collar as a device. When the desired tracking characteristics are obtained, prevent the shaft from rotating by securing the shaft clamp. The pulley body will at this point rotate about the bearing included in the ISP assembly. This technique enables the belt to be tracked while running under tension.
The Rotated Collar Method of ISP Flat Belt Tracking
· Used to individually modify each belt/pulley combination whenever there are multiple pulleys on a common shaft.
· Utilized when systems possess a cantilevered shafting typical of serpentine and various other complex belt path systems. It is recommended that these modifications be made only when the belt is at rest.
Fix the shaft via the shaft clamp, loosen the locking screw of the steering collar, and rotate the steering collar about the shaft. When the desired belt tracking features are attained, secure the locking screw.
Which Design Is Correct for You?
There are various applications for this new product, so Ever-power designs and manufactures independently steerable pulleys to suit your needs. Contact Ever-power to discuss your queries or for style assistance.
Ever-power is the worldwide head in the look and manufacturing of application-specific pulleys, steel belts, and drive tapes. Our products provide exclusive benefits for machinery found in precision positioning, timing, conveying, and automated manufacturing applications.
System Configuration
Number 1 1 – The drive pulley is a friction drive pulley.
· The ISP is certainly a friction-driven pulley. This configuration is specified for a tracking precision of 0.030″ (0.762 mm) or greater.
· Teflon® flanges are attached to the pulley body to determine a lateral constraint. The steering feature of the ISP is used to set one advantage of the belt against the flange with minimal side-loading to the belt.
System Configuration
#2 2 – The drive pulley is a timing pulley.
· The ISP is certainly a friction driven pulley. One’s teeth of the drive pulley and the perforations of the belt establish a lateral constraint. The steering feature of the ISP can be used to minimize side-loading of the belt perforations. Tracking precision is between 0.008″ (0.203 mm) and 0.015″ (0.381 mm) for metal belt systems.
OR
· The ISP is usually a timing pulley. The teeth of the ISP and the perforations of the belt are used for precise monitoring control of the belt with the steering feature of the ISP utilized to minimize side loading of belt perforations. Again, tracking accuracy is usually 0.008″ (0.203 mm) to 0.015″ (0.381 mm) for metal bells.
Take note: Although it is normally not recommended to have timing elements in both the drive and driven pulleys, this style can be used selectively on metallic belt systems with lengthy center distances between pulleys and in applications where particulate accumulation on the top of pulley consistently changes the tracking feature of the belt.