Centralized-transmitting roller-type sieving machine with adjustable gaps among sieve rollers

Abstract

The invention relates to a centralized-transmitting roller-type sieving machine with adjustable gaps among sieve rollers, belonging to the technical field of the unroasted pallet sieving equipment used in the pellet roasting industry. The centralized-transmitting roller-type sieving machine comprises a gear box, a motor reducer, a driving gear, a group of transmission gears, a group of intermediate gears, a group of sieve rollers, bearings and inclined sieve roller supports; the driving gear is connected with the motor reducer; the group of transmission gears with output shafts are meshed withthe driving gear; the group of intermediate gears are meshed with the group of transmission gears; and the bearings and the inclined sieve roller supports are arranged on two ends of each sieve roller. The centralized-transmitting roller-type sieving machine is characterized in that each output shaft is connected to one end of a universal coupling, and the other end of the universal coupling is connected with one sieve roller; two ends of each sieve rollers are provided with bearing pedestals with bearings; the bearing pedestals connected with guide rails by bolts; and the guide rails are provided with T-shaped slots and are fixed on the inclined sieve roller supports. The invention has the advantages of centralized transmission, convenient adjustment of gaps among the sieve rollers and long service lives of the sieve rollers.

Description

technical field [0001] The invention belongs to the technical field of screening equipment for raw pellets in the pellet roasting industry, and in particular relates to a roller-type screening machine with adjustable clearance between centralized transmission screen rollers. Background technique [0002] During the roasting production process of metallurgical pellets, the quality of green pellets must be guaranteed. The finished raw balls need to be screened, and the raw balls that meet the requirements can be roasted. The use of roller screening machines is to achieve the above purpose. There are mainly two structural forms in the prior art. One is a roller screening machine with a conveniently adjustable gap disclosed in Chinese patent 200620093017.7. The device and the bearing seats at both ends of the screen roller are slidingly connected with the bottom plate or the connecting plate. When adjusting the gap between the screen rollers, it is necessary for the motor reduc...

AI Technical Summary

Problems solved by technology

There are mainly two structural forms in the prior art. One is a roller screening machine with a conveniently adjustable gap disclosed in Chinese patent 200620093017.7. The device and the bearing seats at both ends of the screen roller are slidingly connected with the bottom plate or the connecting plate. When adjusting the gap between the screen rollers, it is necessary for the motor reducer and the bearing seats supporting the screen roller to slide at the same time. In actual production, more than a dozen or several The adjustment of ten sieve rollers, a large number of motor reducers and bearing housings is a time-consuming and laborious project, and the increase of motor reducers will occupy space and lead to high equipment failure rate and reduced production operation rate

The second is the new type of raw ball roller screening machine disclosed in Chinese patent 200420000175.4, which is a motor reducer connected to a gear box with multiple output shafts rotating in the same direction, and each output shaft is connected to the screening roller through a coupling , this kind of roller screening machine in the form of centralized transmission, although the number of motor reducers is reduced, the gap between the sieve rollers is fixed and cannot be adjusted, and after the sieve rollers are used for a period of time, the gap between the sieve rollers will become larger due to wear , causing qualified green balls to be screened out, affecting the output of green balls

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