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Conveyor Drive
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 Bosch TSplus Belt Conveyor Drive Module AS2B/M 48Y6BFPP  US $570.00
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 Lot 3 Rolls 30 Feet Conveyor Drive Double Roller Chain US $250.00
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 Ryko Car conveyor drive sprocket #20162-823 US $119.00
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 DODGE SCXT315A 14.88:1 SHAFT MOUNTED SCREW CONVEYOR DRIVE ,USED US $250.00
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 33322 Old-Stock, Bridge Machine 33657 Conveyor Gear Drive 16T 3/4" ID 1/4" Pitch US $91.98
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 Conveyor Drive Unit US $1,250.00
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 Dodge Gear Reducer SCXT315A, Screw Conveyor Drive NEW US $3,500.00
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 Young & Bertke Drying Oven with Conveyor Drive 500F US $9,875.00
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 Lincoln 369611 Conveyor Drive Coupling US $45.00
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 USED DODGE MAXUM SCREW CONVEYOR DRIVE US $1,950.00
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 USED DODGE MAXUM SCREW CONVEYOR DRIVE US $1,950.00
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 USED DODGE SCREW CONVEYOR DRIVE US $800.00
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 USED LINK BELT SCREW CONVEYOR DRIVE US $2,100.00
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 USED LINK BELT SCREW CONVEYOR DRIVE US $1,650.00
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 USED LINK BELT SCREW CONVEYOR DRIVE US $1,700.00
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 UNIBUILT CONVEYOR DRIVE US $999.00
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 HEMEL HEMPSTEAD UK AT71A4 B14 AT71A4-B14 CONVEYOR DRIVE MOTOR AND GEAR BOX US $695.00
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 Used- Belt Conveyor. Has Penta-Drive DC motor speed con US $2,500.00 |
 1000mm x 20mm x 2mm Green Yellow Nylon Film Base Conveyor Drive Belt US $10.83
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 CONVEYOR DRIVE BELT 34 1/2" X 295" FOR 12 FOOT CONVEYOR US $199.99
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As a former franchisor, in the car wash industry, I was often a lightning rod against more established car wash companies because my company was franchising mobile car washes which compete directly with them. They hated me with passion, and every city where we went to service, some 450 cities in all, in 23 states. Indeed, as I ran up against them in nearly every market they did everything they could put me out of business.
They would run over to City Hall, and try to get code enforcement to come out and harass us, and that is only one of the dirty tricks they played. Of course, being a young man, and into winning and competition in the market place, I went after them as well. Anytime a car wash owner would start to attack my company or one of my franchisees, I would do exit surveys of their customers.
The customer would pull out of the car wash, and drive down the street, and I would follow them to their next destination, hanging back quite a ways so they couldn't tell, and I would ask them; "wow your car is clean did you just get it washed?" And then I would ask them about the car wash and the level of service, if they liked the car wash.
One of the most common complaints of course was all the water that dripped out of the cracks of their car as they drove away, causing water spots and streaks. But there was also another common complaint that was fairly typical. The customers were very angry that they tried to up-sell them when they came into the car wash for a simple basic car wash. And they'd try to sell them some sort of "deluxe wash" with hot wax or some nonsense for $29.00 or more. It really used to upset female customers the most as I remember. Male customers would just tell them to get lost, and "give me the basic wash!"
Now some car washes in the industry are starting to get kiosks, where you drive your car up, select what type of car wash you want, slide your credit card, and drive forward. The car wash saves the money and labor, and the customers are actually less fearful of being confronted with a high pressure sales tactic to up-sell them.
There is a wonderful video on CarWash {dot.} TV - which I highly recommend that you see - The title of the video is; "Man Vs. Machine: Rise of The Pay Stations!"
In watching this video, it reminded me of this problem in the industry, and some of the other problems in the car washing sector such as the fact that they use too much water, have a terrible track record in the industry with hiring illegal labor, and their reputation with the Internal Revenue Service keeping two sets of books and laundering their money.
Of course, I won't get into all the dirty tricks in this so-called clean industry, but I thought you should know that in my opinion, the industry is nothing short of questionable.
Ref.
- Kioski Marketplace Magazine; January 5, 2007; "Self-service car wash tests chip-and-PIN payment."
- "Man Vs. Machine: Rise of The Pay Stations" [video] on Carwash.TV
Lance Winslow is the Founder of the Online Think Tank, a diverse group of achievers, experts, innovators, entrepreneurs, thinkers, futurists, academics, dreamers, leaders, and general all around brilliant minds. Lance Winslow hopes you've enjoyed today's discussion and topic. http://www.WorldThinkTank.net - Have an important subject to discuss, contact Lance Winslow.
Do you Need a Low Back Pressure Conveyor?
Although I am far from being a mechanical engineer I do have some experience troubleshooting conveyor applications, some of which include lineshaft conveyors of various manufacture. The most common problem seems to be a loss of drive and sometimes this is caused by load variations over and above the original design of the conveyor, however other culprits can prove to be the drive transmission components. But perhaps I’m getting ahead of myself, lets first discuss a more powered product in a specific environment to understand why someone might use this particular type of conveyor.
In a powered roller application, the roller turns and the product moves. Some examples are chain driven live rollers where a direct transfer of drive is achieved through transferring the torque from the drive to the rollers via a chain to one of two sprockets mounted directly on the roller (think of a bicycle sprocket and chain configuration). The second sprocket on the roller then transfers the drive to an adjoining roller and so on down the line. This type of direct drive configuration is usually used for heavy product as these rollers have high torque and do not stop turning unless the conveyor is stopped altogether.
There is also belt driven conveyor that allows for some roller stoppage but they maintain a pretty high roller turn pressure as well. In this configuration there is either a multi-ply flat belt or “V” belt that drives the rollers from beneath through a direct pressure method and allows for the rollers to stop if there is excessive accumulation on the rollers above. They may not necessarily be designed for product accumulation however, due to the pressure of the drive belt against the rollers.
Given the above examples, let’s imagine a company that ships various products out in one container. In a typical pick facility, the container moves down a conveyor having occasion to stop and start multiple times to be loaded with different items and then finally to a shipping area where the cartons accumulate until they are removed by a shipping clerk. This provides two excellent applications wherein a minimum of roller pressure is necessary. In the pick zones the carton needs to stop and remain stationary momentarily or longer and in a direct drive conveyor this would require the whole system to be turned off and on each time to prevent undue back pressure (the cartons behind pressing against the stopped carton). The second example is the shipping area where the filled cartons accumulate waiting to be palletized or otherwise removed from the conveyor. A direct drive system would transfer the accumulating carton pressure to the forward most carton making it difficult for the clerk to remove or possibly crushing the carton. But a system that allows the rollers to stop turning eliminates this likelihood. It is for purposes of this type that lineshaft conveyors prove invaluable.
The way a line shaft conveyor works is that there is a steel shaft that runs the length of the conveyor perpendicular to the rollers above and is usually orientated to one side of the bed. This shaft is directly driven my a motor / gearbox assembly and much like the chain driven live roller conveyor mentioned above it does not stop turning, but that’s where the resemblance stops. The term for this conveyor type is minimum pressure accumulation and as outlined, the purpose of this conveyor configuration is to allow for stops, starts and accumulation to occur without unduly affecting a throughput process. To allow for this effect, the torque must be transferred from the shaft to the rollers with enough force to restore movement of individual products once they have stopped but also to allow for the rollers to stop turning once accumulation occurs. The methodology is that under each drive roller there is a pulley on the shaft that turns freely with a polyurethane circular band that connects the pulley to the roller above. As the band is under pressure this allows for transfer of drive but if the roller is stopped, the pulley simply slips on the driveshaft until the pressure on the roller is relieved and then the pulley will begin to rotate transferring drive and moving the product.
The rollers on this conveyor are typified by multiple grooves orientated directly over the shaft that the drive bands travel in. One band will carry the torque from the shaft to the roller and another band carries the torque from the drive roller to the adjoining roller(s). Transmission from one roller to another is limited as they will lose torque but it is possible for multiple rollers to function in this manner dependant on the loads.
This conveyor is very useful but also much maligned and it is my experience that those unhappy with these units are usually experiencing a loss of drive due to a driveline mis-configuration or a modified application that the unit was not originally designed for.
Some common lineshaft issues may concern the drive pulleys that are located directly under the rollers that maintain their position via spacers. If the pulley and rollers are not directly aligned this may cause a strong pull for a while but the user will see the shaft components wear faster than normal. Worn or incorrectly sized drive bands can cause loss of drive and a common practice is to deliberately undersize the bands as to provide greater torque. This is a temporary fix and can ultimately cause premature failure of the band, wear of the lineshaft pulleys, distortion of the lineshaft, premature wear of the lineshaft bearings, and premature wear of the roller bearings as well as belling of the roller retention holes in the conveyor frame. A better solution is to confirm that the current usage is consistent with the original conveyor configuration and then back into an examination of the drive train.
An additional challenge for the maintenance crew dealing with these conveyors is the downtime required for replacement of the lineshaft components. These are wearable parts and will require replacement eventually which entails dropping the lineshaft and sliding the old pulleys and o-rings off and sliding the new ones in place (as well as u-joints, sprockets, chain couplers and lineshaft spacers). For this reason quick replacement drive bands and split pulleys have been developed to allow for quick changes and maximum uptime until the next scheduled maintenance interval.
About the Author
Franklin is a material handling specialist with Industrial Supply Services, LLC, a facility layout design company specializing in material handling flow solutions and logistical management.
Can anyone name the song for me?
So, i know it sounds corny, but my girl and I have been driving ourselves batty trying to find out what song is used during the new Geico insurance commercial. It has a caveman on a conveyor belt in what looks like an airport, and he passes a billboard that says "So easy, even a caveman can do it!" Does anyone know the name of the song that plays during that commercial?
"Remind Me" by Royksopp (the radio edit version)
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