Adjustable vibrating mechanism of iron alloy granule-casting machine

Abstract

The invention belongs to the technical field of alloy ingot continuous production and in particular relates to an adjustable vibrating mechanism of an iron alloy granule-casting machine. The adjustable vibrating mechanism comprises a driving vibrating device, a spring bed assembly and a vibrating plate connected with the spring bed assembly. The adjustable vibrating mechanism is characterized in that the driving vibrating device comprises a driving motor, a driving gear shaft, a driving gear, weighting blocks I arranged at two ends of the driving gear shaft, a connecting bracket I, a driven gear shaft, a driven gear engaged with the driving gear, weighting blocks II arranged at two ends of the driven gear shaft and a connecting bracket II; both the connecting bracket I and the connecting bracket II are connected with a vibrating box body; and the vibrating box body is connected with the spring bed assembly. With the adoption of the double-gear drive manner, the synchronous rotation of the two groups of weighting blocks is greatly ensured; both the superposition and the separation of the two groups of weighting blocks are finished according to a predetermined point of strength, the relative vertical running of the centrifugal force and the material is ensured, and thus the expected purpose and effect of the vibration are achieved.

Description

technical field [0001] The invention belongs to the technical field of continuous production of alloy ingots, and in particular relates to an adjustable rapping mechanism of a ferroalloy casting machine. Background technique [0002] The parting and demoulding of the molded casting particles of the existing ferroalloy casting machine depends on the motor to drive the rotating shaft, and four rigid struts are connected to the shaft to beat the forming mold at a uniform speed to achieve the purpose of parting and demoulding. The disadvantages are: 1) Due to the long-term rigid point contact between the beating rod and the mold, the rapping area is small, so it is easy to cause wear and damage of various parts, and the success rate of parting and demoulding is very low. 2) Due to the large amplitude of rapping, the smooth operation of the chain transmission mechanism is affected, and the accompanying noise is large. The motor is subject to a large impact load for a long time, ...

AI Technical Summary

Problems solved by technology

Its disadvantages are 1) Due to the long-term rigid point contact between the knocking rod and the mold, the rapping area is small, so it is easy to cause wear and damage of various parts, and the success rate of parting and demoulding is very low

2) Due to the large amplitude of rapping, the smooth operation of the chain transmission mechanism is affected, and the accompanying noise is large

However, this kind of eccentric rapper still has many disadvantages, for example (1) because the rapping device is driven by double motors and double transmission shafts, which drives the weighted block to generate centrifugal force to make the vibrating plate move, so when the two motors are started, there will be When there is a time difference, the two eccentric weights driven by the two transmission shafts cannot be overlapped or separated at the predetermined point, so that the centrifugal force produced deviates from the bottom of the material to be vibrated, and the purpose of vibration and the expected effect cannot be achieved.

(2) The centrifugal force of the eccentric rapper is adjusted by the angle between the two eccentric weights. This adjustment method cannot accurately calculate the working force on the spot. It depends entirely on the actual experience in the work, so it is accurate degree is not high

(3) The transmission connection between the eccentric rapper motor and the rapping device is connected by a coupling. Because in the vibration working state, the vibrating device and the coupling also rotate while moving up and down relative to each other. Due to the coupling The device is a rigid connection, and the movement is completed by the auxiliary bearing. During the large-angle movement, the bearing cannot be adjusted with the angle adjustment. That is to say, this connection method is limited by the movement angle to a certain extent, so it often cannot run stably.

(4) The rapping device of the eccentric rapper is lubricated with glycerin, that is, glycerin is injected into the bearing of the transmission shaft, but in actual production, since the device works at high temperature, the glycerin will melt and decompose quickly, so that the bearing The failure rate is very high and cannot meet the needs of the normal operation of the equipment

(5) The vibration force generated by the eccentric rapper is transmitted to the rapping plate by a set of springs of the spring bed assembly. The greater the vibration force, the better the rapping effect, but the spring will also produce a reaction force on the spring body bracket and The foundation is damaged, affecting the safe operation of the equipment

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