Toothed belt tensioning device and cigarette material belt conveyer

Abstract

The invention relates to a toothed belt tensioning device and a cigarette material belt conveyer. The toothed belt tensioning device comprises a bottom fixing mechanism, an adjusting mechanism and a tensioning press wheel, wherein the bottom fixing mechanism is fixedly arranged on a rack; the adjusting mechanism is arranged on the bottom fixing mechanism; the tensioning press wheel is arranged on the adjusting mechanism; the tensioning press wheel is positioned on the inner side of a toothed belt; the tensioning press wheel can be driven through the adjusting mechanism to move towards the outer side of the toothed belt to tension the toothed belt in an outward tensioning manner. The toothed belt is tensioned in the form that the toothed belt is tensioned towards the outer side through the tensioning press wheel, so the adjusting stroke is large, the toothed belt can be effectively tensioned, mutual interference of the tensioning press wheel, a driving wheel and a driven wheel is prevented, and the phenomenon that the toothed belt is sheared and torn by a belt pulley can be avoided.

Description

technical field [0001] The invention relates to the field of shredded tobacco, in particular to a toothed belt tensioning device and a belt conveyor for tobacco materials. Background technique [0002] At present, the belt conveyor for tobacco materials has been widely adopted by various cigarette manufacturing enterprises and tobacco leaf redrying, which solves the problems of storage, transportation, production organization, and linking of work sections for each host equipment on the assembly line for tobacco products. The tobacco material belt conveyor has achieved standardized production. When cleaning the conveyor belt surface of the tobacco material belt conveyor, brush rollers are generally used. [0003] like figure 1 As shown, the motor 1' drives the driving roller 2' to rotate, and the driving roller 2' transmits the torque to the driven wheel 5' on the brush roller 4' through the driving wheel 3' and the synchronous toothed belt on it, driving the brush roller 4...

AI Technical Summary

Problems solved by technology

[0004] 1) When tensioning the belt, the tensioning roller in the internal pressure tensioner will approach the driving wheel and the driven wheel. If the tension is in place, motion interference will occur, causing the synchronous toothed belt to be sheared and torn by the pulley

If it is loosened, the tension of the timing belt will not be in place, and the timing belt will slide between the ribs on both sides of the pulley and rub against the edge of the pulley, resulting in dust and affecting product quality

In actual work, the cleanliness of the conveyor belt surface is generally adopted to give way to the tension of the synchronous toothed belt, which reduces the function of cleaning the brush roller

[0005] 2) The use of internal pressure tensioner will easily cause the wrap angle of the driving wheel and the driven wheel to be too large, reaching 270°, which is much larger than the standard design ≤120° wrap angle. The friction of the equipment mechanism is large, the energy consumption is high, and Affect the service life of the synchronous toothed belt

[0006] 3) The internal pressure tensioner is adjusted by the long hole of the base, and the adjustment space is limited. The long hole of the base is 30mm. The actual adjustment stroke is only 20mm after deducting the M10 base fixing bolt. The adjustment stroke is insufficient to meet the tension of the synchronous toothed belt. need

[0007] 4) When adjusting the internal pressure tensioner, it is necessary to adjust the displacement of the base by loosening the fixing bolts of the base. Two people are required to cooperate, and a variety of tools will be used. The adjustment time of the device is long, and the effect is not good, and there is no automatic adjustment. The locking position function requires manual hard top, and the whole adjustment project is time-consuming and laborious

Images