Grinding and driving mechanism of inner grinder of large-diameter cast iron pipe production line

Abstract

The invention discloses a grinding and driving mechanism of an inner grinder of a large-diameter cast iron pipe production line. The mechanism is provided with a grinding rod shaft bracket connected to a connecting seat of the inner grinder, and a grinding rod shaft is arranged on the front part of the grinding rod shaft bracket extending into a cast iron pipe through a bearing block, wherein the axis of the grinding rod shaft is longitudinally parallel to the grinding rod shaft bracket; and a driving motor is fixed on the grinding rod shaft bracket and connected with the grinding rod shaft through a belt transmission mechanism. The adoption of the technical scheme simplifies the structure of the inner grinder, decreases the length of the grinding rod shaft and reduces the number of supporting bearing blocks of the grinding rod shaft; in addition, the weight of the equipment mechanism is lightened, and under the condition that the power of a grinding electromotor keeps unchanged, the grinding time is reduced, and the replacement period of the grinding rod shaft is prolonged, thereby reducing the inventory of spare parts, greatly improving the production efficiency and reducing the production cost.

Description

technical field [0001] The invention belongs to the technical field of production equipment in the metallurgical industry, and relates to process equipment for a large-diameter cast iron pipe production line. More specifically, the invention relates to a grinding drive mechanism for an internal mill in a large-diameter cast iron pipe production line. Background technique [0002] In the production process of centrifugal ball milled cast iron pipe, the grinding of the surface finish of the lining material is realized by an internal mill. [0003] At present, the grinding drive mechanism of the internal grinding machine adopts the grinding drive motor to be placed on the frame of the internal grinding trolley, and the high-speed rotation of the grinding wheel is driven by the split long grinding rod shaft supported by multiple points. [0004] In order to ensure the smooth operation of the inner grinding car during the grinding process, the grinding wheel exerts the same grind...

AI Technical Summary

Problems solved by technology

The structure of the whole internal grinding machine is complex, the grinding force is uneven, and the efficiency utilization rate of the grinding motor is low

Because of the uneven grinding force and the long-axis runout problem introduced by multi-point support, etc., it has not been effectively suppressed, resulting in frequent bending of the long grinding rod shaft, which cannot guarantee the effective transmission of grinding force, and requires multiple round-trip grinding In order to ensure product process requirements

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