Cast tube inserting opening polishing machine

Abstract

The invention discloses a cast tube inserting opening polishing machine which comprises a polishing head (4), a grinding shaft rack (1) and a motor (3). The grinding head (4) and the motor (3) are connected through a belt transmission mechanism. The grinding shaft rack (1) is of an L-shaped integral structure, the long edge part of the L shape is horizontally arranged, the short edge part of the L shape is vertically arranged, and the bottom end face of the short edge part is flush with the lower surface of the long edge part. The motor (3) is arranged on the long edge part. The grinding head (4) is arranged on the outer surface of the short edge part. By the adoption of the technical scheme, integral rigidity of the grinding shaft rack is enhanced, and the deformation and shock resistant ability is enhanced; the motor can have a function of balance weights, and the number of the balance weights needing to be increased can be reduced; by means of a triangular belt tensioning adjusting mechanism convenient to adjust, time and labor are saved when triangular belts are replaced, and loss of the triangular belts is reduced; a buffering effect is remarkably promoted.

Description

technical field [0001] The invention belongs to the technical field of cast iron pipe production equipment. More specifically, the present invention relates to a cast pipe socket grinder. Background technique [0002] Ductile iron pipes (hereinafter referred to as cast pipes) have the characteristics of high strength, corrosion resistance, easy transportation and installation, and are widely used in pressure water supply, gas pipelines, and oil pipeline projects. [0003] The casting pipe adopts the centrifugal casting process. After forming, the socket of the pipe usually has inconsistencies in size and appearance defects. In order to meet the installation needs, the socket of the casting pipe needs to be polished with a socket grinder until it meets the size required by the process standard. [0004] Such as figure 1 As shown, the main structure of the prior art cast pipe socket grinding machine mainly includes: grinding shaft frame 1, body 5, motor 3, hinge shaft seat 8...

AI Technical Summary

Problems solved by technology

[0008] 1. The distance between the grinding shaft frame and the body is large, and the overall rigidity is poor;

[0009] 2. The grinding shaft frame and body structure are thin and easy to deform;

[0010] 3. There is no tension adjustment mechanism for the V-belt of the motor, and the loss of the V-belt is high;

[0011] 4. The motor is located above the shaft seat and cannot play the role of counterweight;

[0013] Due to the heavy workload and poor working conditions of the spigot grinder, the existence of the above problems leads to a high failure rate of the spigot grinder, which restricts the production rhythm of cast pipes

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