Analyze the type characteristics of the belt conveyor tensioning device

Analyze the type characteristics of the belt conveyor tensioning device (Characteristic) The type characteristics of the belt conveyor tensioning device (Characteristic) The type of the belt conveyor tensioning device The tensioning device is an important part of the belt loading conveyor. Plays an important role in the work process. The chain loading conveyor is a transmission device that uses standard chain plates as the bearing surface and is driven by a motor reducer. Chain conveyor is composed of power unit (motor), drive shaft, roller, tensioning device, sprocket, chain, bearing, lubricant, chain plate, etc. It plays a very important role in the working process of the conveyor . '1. Ensure that the conveyor belt has proper tension at the operating point of the drive roller (explanation: mutual traction when the object is under tension) to prevent the conveyor belt from slipping. 2. Ensure that the contact arc between the conveyor belt and the idler has the necessary tension, In order to prevent the expansion of the conveyor belt due to the slack (limp) between the two sets of rollers. 3. Compensate the permanent deformation of the conveyor belt, and start under different working conditions, the length of the elastic body that runs stably. my country's current belt conveyor The tensioning device used has two characteristics. 'The tension of the belt at the operating point of the transmission drum changes arbitrarily with time and operating conditions, and the belt maintains a constant tension. Since the conveyor belt is not in a stable state of motion during the starting process, the conveyor belt is not only affected by the static tension, but also by the additional pulling force generated by the speed change to ensure that the conveyor belt will not slide on the drive roller. And the force during stable operation is reasonable. This requires it to have different tensions during startup and stable operation, and maintain a constant tension during stable operation. However, the current tensioning devices of coal mine belt conveyors cannot meet these requirements. Therefore, it is necessary to develop a new type of automatic tensioning device. There are three types of belt conveyor tensioning devices. Mesh belt conveyor transportation machinery can not only complete the transportation of bulk materials, but also transport finished materials, but depending on the place of use, working environment, and the type of materials to be conveyed, there will be big differences in its design and application. The effective combination of assembly line man and machine fully embodies the flexibility of equipment. It combines the conveying system, the accompanying fixture, the online special machine, and the testing equipment organically to meet the variety of products (Varieties). (product) assembly requirements. Logistics conveyor belt belt with traction parts The conveyor belt generally includes: traction parts, load-bearing members, driving devices, tensioning devices, redirecting devices and supports. The traction parts are used to transmit traction, which can be conveyor belts, traction chains or steel wire ropes (consisting of steel wires, rope cores and grease); load-bearing components are used to carry materials, including hoppers, brackets or spreaders, etc.; drive The device powers the conveyor, which is generally composed of a motor, a reducer and a brake (stop); the tensioning device generally has two types of screw type and heavy hammer type, which can maintain a certain tension and sag of the traction member , In order to ensure the normal operation of the conveyor belt; the supporting member is used to support the traction member or the bearing member, and the roller (gǔn), roller, etc. can be used. Vertical hammer type, mechanical (Mechanics) type and hydraulic (hydraulic) type: 1. The dryer mesh belt is a machine that uses static friction to transport materials in a continuous manner by friction drive. Using it, the material can be formed on a certain conveying line from the initial feeding point to the final unloading point to form a material conveying process. The heavy hammer tensioning device is tension (explanation: the mutual interaction of objects under tension). Traction) is one of the original (Original) forms of the device. It is mainly composed of a tension device frame, a tension conversion drum, a spring buffer, an eccentric brake wheel and so on. This kind of tensioning device mainly depends on the weight of the frame and the size of the counterweight to fasten the belt. The advantage of this kind of tensioning device is simple structure and low cost, but the disadvantage is that the tension cannot be adjusted according to the working conditions, and the belt can only be kept in a tightened state. The fixed tensioner means that before and after the start and stop of the conveyor, the tension roller can move left and right to change the tension, but the position (position) remains unchanged during the operation. A tensioning device whose tension changes with the change of tension. Among them, the spiral tensioning device is often used for short-distance transportation. The fixed tensioning device of electric winch and manual winch is suitable for large conveyors with horizontal conveying and small inclination angle. However, when the belt is plastically deformed, the belt tension becomes smaller and the drape increases, and the tensioning position should be adjusted at this time. 3. Hydraulic tensioner The hydraulic tensioner mainly tightens the belt by inflate and expansion of the hydraulic cylinder. The current hydraulic tensioning device generally controls the tension of the belt through a relay. The tension can be adjusted according to the working conditions to improve the working condition of the belt and greatly increase the life time of the belt. However, it is not easy to achieve point control of the conveyor belt tension. For this reason, a hydraulic tensioning device can be designed, which can not only change the size of the tensile pull, but also solve the point control problem of the tensile force. The main technical characteristics (Characteristic) of the new automatic control hydraulic tensioning device are as follows: 1. Automatic control of the hydraulic tensioning device. The use of moving pulleys solves the requirement of long strokes. Because a certain amount of slack transportation is required during the glue connection and installation process, if the trolley is directly tightened with the cylinder, the cylinder stroke is too long.
container loading machine flexible conveyor system is generally used to container loading machine.
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