Connection mechanism for crankshaft and flying shear rest

Abstract

The invention discloses a connection mechanism for a crankshaft and a flying shear rest. The connection mechanism comprises the crankshaft and the flying shear rest. The crankshaft is provided with ashaft head, the flying shear rest is provided with a shaft hole, the shaft head is rotationally inserted into the shaft hole, a copper sleeve is installed in the shaft hole through interference, the shaft head is sleeved with a steel sleeve through interference, and a lubricating gap is reserved between the steel sleeve and the copper sleeve. Since the steel sleeve is added to the shaft head of the crankshaft, direct abrasion caused to the shaft head in the working process is avoided, the steel sleeve can be replaced after being abraded, replacement is convenient, and the cost is greatly reduced.

Description

Technical field [0001] The invention mainly relates to the technical field of flying shears, in particular to a connecting mechanism of a crankshaft and a flying shear frame. Background technique [0002] At present, all kinds of crank-type flying shears on the market are connected by the crankshaft and the tool holder. The crankshaft head and the tool holder are in contact through a copper sleeve. The copper sleeve acts as a bearing. The outer circle of the copper sleeve and the inner hole of the tool holder are connected by interference , The inner hole of the copper sleeve and the outer circle of the crankshaft are in a clearance fit, and the gap is filled with grease lubrication, but the flying shear site is poor, the temperature is higher, and the grease is prone to failure. Later, the crankshaft needs to be removed and replaced as a whole, which is troublesome and costly. Summary of the invention [0003] In view of the shortcomings of the prior art, the present invention p...

AI Technical Summary

Problems solved by technology

[0002] At present, all kinds of crank-type flying shears on the market are connected by the crankshaft and the tool holder. The crankshaft head and the tool holder are in contact through a copper sleeve. The copper sleeve acts as a bearing. The outer circle of the copper sleeve and the inner hole of the tool holder are connected by interference. , the inner hole of the copper sleeve and the outer circle of the crankshaft have a clearance fit, and the inside of the gap is filled with grease for lubrication. However, the working conditions of the flying shear are poor, the temperature is high, the grease is prone to failure, the inner hole of the copper sleeve and the outer circle of the crankshaft are easy to wear, and the crankshaft head wears Finally, the crankshaft needs to be removed and replaced as a whole, which is troublesome and costly

Images