Extruding pulverizer driven by multiple sets of motors

Abstract

The invention relates to an extruding pulverizer driven by multiple sets of motors. The extruding pulverizer comprises a pulverizer body and a crushing cavity connected with the downside of the pulverizer body, a main shaft extending into the crushing cavity is connected into the pulverizer body in a penetrating manner, the upper end and lower end of the pulverizer body are respectively provided with an upper bearing and a lower bearing of the main shaft, the upper end of the main shaft is connected with a large belt pulley, the lower end of the main shaft is connected with a rotor used for crushing a mineral substance, at least two motor racks are arranged on the crushing cavity by using the main shaft as a center, and are respectively provide with a motor, the motors are mutually symmetric and are same in power and rotating direction, small belt pulleys are arranged at the upper ends of shafts of the motors, and the large belt pulleys and the small belt pulleys are in transmission connection by means of belts which are arranged in a staggered manner. The extruding pulverizer is simple in structure, convenient to maintain, and relatively low in cost; failures are easily caused; the production efficiency is ensured, and a large quantity of manpower and material resource cost is saved.

Description

technical field [0001] The invention relates to an extrusion pulverizer, in particular to an extrusion pulverizer driven by multiple sets of motors. Background technique [0002] Extrusion mills currently on the market for crushing mineral materials are mainly used for crushing medium-hard materials such as limestone, gypsum, and dolomite. There is an extrusion mill for crushing mineral materials. Its working principle Firstly, pour large materials into the crushing chamber of the machine body, and use the rotating shaft to drive the rotor to rotate and collide with the crushed materials. Under the extrusion of the hard hammer head, it is crushed into fine particles, and many of the smaller material particles and powder have already passed through the through holes on the liner and the bottom liner and flowed to the discharge channel under the pressure of the hard hammer head. And fall into the discharge hopper; in addition, the fine granular materials that have not passed ...

AI Technical Summary

Problems solved by technology

[0003] like figure 2 As shown, since the extrusion pulverizer is a large-tonnage heavy-duty production equipment, a high-power (about 300 kilowatts) motor is usually installed on the above-mentioned extrusion pulverizer, and a pulley is set above the motor and the pulley above the rotating shaft passes through eight belts. connection, so as to drive the rotating shaft to rotate, and then drive the rotor to crush materials; the following two problems will appear in the actual production process: 1. Since the rotating shaft is always under the traction force in one direction, the rotating shaft is always in a state of uneven force during operation , which will produce large vibrations and poor stability, which will have a great impact on production; at the same time, the rotating shaft is prone to shift due to long-term traction in one direction and affects the operation of the rotor, and readjustment requires a lot of manpower and material resources. Inconvenient; 2. Because only one high-power motor is used, it brings a huge load to the motor shaft and the belt. After long-term use, the belt will often fall off or the motor shaft will break. Larger, the weight of the motor reaches several tons, and it takes a lot of time and labor costs to replace the belt once. If the motor needs to be replaced, it will consume more manpower and material resources, which not only affects the production efficiency of the factory, but also creates a large economic burden.

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