Large-batch sample grinding device

Abstract

The invention provides a large-batch sample grinding device which comprises a driving motor, a base assembly, a crankshaft assembly, a connecting rod assembly, a grinding frame assembly, a linear guide assembly, an adapter assembly and an adapter fixing assembly, wherein the crankshaft assembly comprises a first crankshaft, a second crankshaft and a crank pin. A connecting rod acts on the crank pin of the crankshaft assembly, and the bearings are mounted on the two sides of the crankshaft assembly, so that the supporting rigidity and strength of the crankshafts can be greatly improved. Centrifugal unbalanced force generated by centrifugal inertia mass at the lower end of the connecting rod assembly is counteracted through crankshaft balance blocks; and meanwhile, the direction of inertia force generated by part of reciprocating inertia mass is transferred by properly increasing the mass of the balance blocks. The large-batch sample grinding device can bear reciprocating inertia force generated by large reciprocating inertia mass, can grind an ultra-large batch of grinding samples at a time, and is high in reliability and stable in operation. In addition, a double-layer damping assembly can further reduce vibration generated by reciprocating motion mass, and it is ensured that the grinding device operates more stably.

Description

technical field [0001] The invention relates to the technical field of sample grinding, in particular to a mass sample grinding device. Background technique [0002] The reciprocating motion of the grinding machine adapter with a large amount of grinding has a large mass, and the force on the connecting rod bearing, the rigidity and strength of the eccentric shaft and the motor shaft are very high, and the bearing capacity of the motor output end bearing is also very high. Therefore, the general grinder is affected by the motor shaft stiffness, strength and bearing capacity of the motor output end, so it is difficult to increase the grinding amount. When the amount of grinding increases, the lack of rigidity of the support shaft will cause the connecting rod to tilt, resulting in further deterioration of the life of the connecting rod bearing and motor bearing, and the vibration and noise of the whole machine will also further increase. Contents of the invention [0003] ...

AI Technical Summary

Problems solved by technology

Therefore, the general grinding machine is affected by the rigidity and strength of the motor shaft and the bearing capacity of the motor output end bearing, so it is difficult to increase the grinding amount.

When the amount of grinding increases, the lack of rigidity of the support shaft will cause the connecting rod to tilt, resulting in further deterioration of the life of the connecting rod bearing and motor bearing, and at the same time, the vibration and noise of the whole machine will further increase

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