Wire Trolley,Wire Basket Shelving Unit,Wire Storage Shelving,Metro Shelving Units Suzhou Aomeijia Metalic Products Co,Ltd. , https://www.amjshelf.com
The buffer roller has a light weight and a low rotational inertia. The special polymeric material for the roller is lightweight and the specific gravity is one-seventh that of the steel. The weight of the roller made of this material is about one-half that of the ordinary roller, and the rotation inertia is small. Between the roller and the belt The friction is small.
The buffer roller is installed below the receiving section of the conveyor to reduce the impact of the material on the conveyor belt when the material is dropped. The service life of the conveyor belt is long. The buffer roller spacing is generally 100-600 mm.
The first aspect of the installation of the buffer roller is to increase the installation density; the second is to check frequently and replace the damaged roller in time. It is recommended to install a buffer gas locker for the conveyor belt with a large drop, and replace the buffer roller with a buffer bed. According to the characteristics of cushioning roller, the following points are noted in the purchase: radial run-out of idler, flexibility of idler, axial turbulence, dust resistance of roller, waterproof performance, axial bearing performance of idler, Roller impact resistance and so on.
(1) Buffer roller temperature protection When the roller and belt friction of the belt conveyor cause the temperature to exceed the limit, the detection device installed close to the roller emits an over-temperature signal. After the receiver receives the signal, it delays for 3s to make the part perform the operation. , cut off the power supply of the motor, the conveyor stops automatically and plays the role of temperature protection.
(2) Roller group speed protection If the conveyor malfunctions, such as the motor burned, the mechanical transmission part is damaged, the belt or chain breaks, the belt slips, etc., the magnetic switch in the accident sensor SG installed on the driven part of the conveyor Can not be closed or cannot be closed at normal speed. In this case, the control system will press the inverse time characteristic and after a certain time delay, the speed protection circuit will work to make part of the action and cut off the motor power supply to prevent the accident from expanding.
(3) Cushioning roller coal bunker coal level protection The coal bunker is equipped with two coal level electrodes at high and low levels. When the coal bunker cannot empty coal because there is no empty car, the coal level will gradually increase. When the coal level rises to the high level electrode, the coal The bit protection action starts from the first belt conveyor and each conveyor is stopped by the tail coal in sequence.
Special roller introduction Shandong
Unusual idlers The most commonly used idlers are Wei-buffered idlers. The buffer idlers are used at the receiving area of ​​the belt conveyor to slow down the impact of blanking on the conveyor belts, mainly for corrosive environments such as coal washing plants, coking plants, and chemical plants. The research and development of a type of roller, it has ten times more toughness than ordinary metal, life is five times the traditional column shoes, corrosion-resistant flame-retardant, anti-static, light weight and other characteristics, widely used in mining. Roller roller body special polymer material, its mechanical properties similar to bronze, has a good wear resistance, but also has a good self-lubricating properties, does not hurt the belt. The buffer roller has excellent anti-corrosion properties. The roller body and seals are made of high polymer materials and are resistant to corrosion. Used in corrosive applications, the service life can be more than 5 times that of common idlers.