How to choose the tensioning device of the chain conveyor?

The tensioning equipment of the chain conveyor can be divided into three types: screw type, car type and vertical type. The permanent elongation of the conveyor belt; therefore, selecting the appropriate tensioning equipment is the key to designing the chain loading conveyor . The following are the advantages, disadvantages and applications of the three tensioning equipment:

Spiral tensioning equipment for chain-plate conveyors: Spiral tensioning equipment is installed at the tail wheel of the chain-plate conveyor. After adjusting the screw, the tail wheel is displaced and then stretched into the conveyor belt. It is generally used for length<On the 60-meter chain conveyor with small power, the stroke of the screw tensioning device can be selected according to 1% of the length of the chain conveyor; in the series of products, its stroke is divided into two types: 500mm and 800mm; The sum of the tension at the point of entry and the point of departure is the tension of the tensioning device;

The structure of the spiral tensioning equipment is simple and takes up little space. Its disadvantage is that it cannot automatically adjust the tension of the conveyor belt. Tighten the device.

Chain plate conveyor locomotive-type tensioning equipment: car-type tensioning equipment is the tail wheel equipment of the chain plate conveyor on the moving car, and the moving car and the heavy hammer are respectively connected with the steel rope through the reversing pulley, and the gravity of the heavy hammer Actively tighten the conveyor belt by function, and the effective stroke of tension is: S=(0.01-0.017)L where: S----useful stroke of tensioning equipment (m); L----chain conveyor The actual length (m) has been proved by practice to be larger for the effective stroke of the tension; the cart-type tension equipment has a wide range of applications and is not constrained by the length of the belt conveyor. The tension of the conveyor belt can be adjusted automatically, and the structure is simple and reliable. Therefore, the design is preferred.

Vertical tensioning equipment of chain-plate conveyor: The vertical tensioning equipment is installed between the head wheel and the tail wheel, and should be as close as possible to the place where the tension of the conveyor belt is small (head wheel). When the chain-plate conveyor starts, the vertical tensioning equipment moves sensitively , the effect is good; the structure is that the bottom loading conveyor belt passes through the 90° redirection roller, and then the 180° redirection roller installed on the frame, and the conveyor belt is tightened by the heavy hammer hanging on the frame. The selection of effective stroke is the same as that of the car type tensioning device.

The above is

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