Crankshaft connecting rod cap assembly of cold header and mounting method thereof

Abstract

The invention discloses a crankshaft connecting rod cap assembly of a cold header and a mounting method thereof. The crankshaft connecting rod cap assembly comprises a body, a connecting rod mounting through hole is formed in the body, two or more copper sleeves are distributed at the two ends of the connecting rod mounting through hole in the axial direction at intervals, and an oil groove is formed in the inner wall of each copper sleeve. According to the crankshaft connecting rod cap assembly of the cold header and the mounting method thereof, the multiple copper sleeves are arranged and axially connected to a crankshaft connecting rod in a sleeving mode at internals, so that the heat dissipation effect of the crankshaft connecting rod is not affected under the fact that the outer wall of the connecting rod is entirely wrapped with the copper sleeves, and meanwhile part of lubricating oil in the copper sleeves are taken out and stored under the effect of the crankshaft connecting rod; and then the part of lubricating oil is utilized to rapidly cool the copper sleeves and the crankshaft connecting rod, finally the heat dissipation effect is improved, and meanwhile the problem that the friction force is increased after using of a long time can be solved.

Description

technical field [0001] The invention relates to a crankshaft accessory of a cold heading machine, in particular to a crankshaft connecting rod cover assembly of a cold heading machine and an installation method thereof. Background technique [0002] Cold heading machine is a special equipment for mass production of fasteners such as nuts and bolts based on piers. The crankshaft on the cold heading machine is one of the key components of the cold heading machine, and its working state often directly or indirectly affects the overall performance index of the cold heading machine. The main function of the crankshaft is to drive the sliding table mechanism to reciprocate left and right to complete the pier processing of the fasteners. The crankshaft is connected to the driver through the connecting rod, and then drives the connecting rod to reciprocate through the driver, thereby driving the crankshaft to reciprocate. In order to effectively limit the position of the connecting...

AI Technical Summary

Problems solved by technology

[0003] 1) The heat dissipation effect is poor, which affects the accuracy. Since the connecting rod and the copper sleeve are in rigid contact during work, lubricating oil must be added to the shaft of the connecting rod to finally play a role in lubrication. However, at present, due to the length of the copper sleeve and the The length of the through hole of the connecting rod in the connecting rod cover is the same, so the entire copper sleeve covers the connecting rod, so that when the connecting rod reciprocates with the driver, the friction between the copper sleeve and the connecting rod will easily cause the connecting rod to Heat will affect the accuracy;

[0004] 2) The lubrication effect is poor, resulting in the wear of the copper sleeve and even the fatigue cracks of the connecting rod, which reduces its service life. Since the outer surface of the connecting rod is in full contact with the inner surface of the copper sleeve; there is no gap, and the lubricating oil is easy to be carried out , eventually leading to a period of time, the lubrication effect becomes worse, the friction increases, and affects the operation accuracy;

[0005] 3) When the connecting rod reciprocates, the heat dissipation effect of the whole connecting rod is poor

Images