Metallic conveyor belt pulleys are critical to the look of any automated conveyor belt system. They become the driving push behind the motion of the belt, creating torque and rate. In very general terms 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 overall game with regards to pulleys. A metal belt is as good and precise as the pulleys. Many pulleys recommended by Ever-power are made of anodized aluminum (hard coating) with the right friction coefficient to operate a vehicle the metallic belt. Stainless steel can also be used nonetheless 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 can help you select the best material.
Selecting the correct pulley size and configuration can have a substantial influence on the lifespan and effectiveness of a conveyor belt. Ever-power engineers have the knowledge and experience to help you choose the correct pulley type, diameter, and composition to minimize maintenance downtime and increase product volume.
Steel Conveyor Belt Pulley Types
Ever-power designs custom metal conveyor belt pulleys and configurations to bring optimum efficiency to one’s body. While steel conveyor belts are typically made of stainless steel, pulleys can be produced from a variety of materials, including light weight aluminum or a number of plastic composites. With respect to the unique requirements of your system, the pulleys can also be installed with custom timing attachments, relief channels, and more.
Independently Steerable Pulley
Ever-power has developed a forward thinking concept in smooth belt tracking called the ISP (independently steerable pulley), which can be used in the following system designs:
· Two pulley conveyor systems where the ISP may be the idler or driven pulley
· Systems with multiple idler pulleys on a common shaft
· Systems with serpentine or additional complex belt paths
Steering smooth belts with an ISP is founded on the concept of changing tension interactions across the width of the belt simply by adjusting the angle of the pulley in accordance with the belt.
Rather than moving the pulley shaft remaining/right or up/down by pillow prevent adjustment, the ISP fits a variable steering collar and sealed bearing assembly to your 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 motion of the belt across the pulley face.
The ISP is exclusively available from Ever-power. It provides a simple approach to steering flat metallic belts. Users may combine ISP steering with the original belt tracking designs of crowning, flanging, and timing elements to make a synergistic belt monitoring system which efficiently and exactly steers the belt to specific tracking parameters.
Unique Characteristics and Advantages of the ISP
· Toned belts are tracked quickly by rotating the steering collar.
· ISP designs minimize downtime when replacing belts on production machinery.
· ISP system is easy to use and requires no special tools or training.
· ISP simplifies the design and assembly of conveyor systems using toned belts.
· Existing idler pulleys can normally be retrofitted to an ISP without main system modifications.
· No maintenance is required once the belt tracking parameters have been established.
· It prolongs belt lifestyle by minimizing side loading when working with 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 is utilized 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 can be a capped tube design.
· Is NEVER used when multiple pulleys are on a common shaft.
· Used selectively when the ISP is a steering roll in a multiple pulley program.
Protected the ISP to the shaft using the split collar and locking screw included in the ISP. Rotate the shaft and collar as a unit. When the required tracking characteristics are obtained, prevent the shaft from rotating by securing the shaft clamp. The pulley body will today rotate about the bearing built into the ISP assembly. This method allows the belt to become tracked while operating under tension.
Secure the ISP to the shaft using the split training collar and locking screw included in the ISP. Rotate the shaft and collar as a unit. When the required tracking characteristics are obtained, prevent the shaft from rotating by securing the shaft clamp. The pulley body will today rotate about the bearing included in the ISP assembly. This technique allows the belt to become tracked while running under tension.
The Rotated Collar Approach to ISP Flat Belt Tracking
· Used to individually adjust each belt/pulley combination whenever there are multiple pulleys on a common shaft.
· Utilized when systems have a cantilevered shafting typical of serpentine and additional complex belt path systems. It is suggested that these changes be made only once the belt reaches 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 required belt tracking characteristics are obtained, secure the locking screw.
Which Design Is Right for You?
There are many applications because of this new product, so Ever-power designs and manufactures independently steerable pulleys to meet your requirements. Contact Ever-power to go over your queries or for style assistance.
Ever-power is the worldwide innovator in the design and production of application-specific pulleys, steel belts, and drive tapes. Our products provide exclusive benefits for machinery found in precision positioning, timing, conveying, and automated production applications.
System Configuration
#1 1 – The drive pulley is a friction drive pulley.
· The ISP is certainly a friction-driven pulley. This configuration is specified for a monitoring precision of 0.030″ (0.762 mm) or greater.
· Teflon® flanges are attached to the pulley body to establish a lateral constraint. The steering feature of the ISP can be used to set one edge 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 usually 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 is utilized to reduce side-loading of the belt perforations. Tracking precision is between 0.008″ (0.203 mm) and 0.015″ (0.381 mm) for steel belt systems.
OR
· The ISP is definitely a timing pulley. One’s teeth of the ISP and the perforations of the belt are utilized for precise tracking 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.
Notice: Although it is normally not recommended to possess timing elements in both the drive and driven pulleys, this design can be used selectively on metallic belt systems with lengthy center distances between pulleys and in applications where particulate accumulation on the surface of the pulley consistently changes the tracking characteristic of the belt.