Hinge pin device and coal mining machine

Abstract

The invention provides a hinge pin device and a coal mining machine. The hinge pin device is applied to the coal mining machine and comprises taper sleeves and a hinge pin, wherein the taper sleeves are mounted at two ends of the hinge pin. The hinge pin device is characterized by further comprising a shaft sleeve connected onto the hinge pin in a sleeving manner, and lubricant accommodating holes are formed in the shaft sleeve. With adoption of the technical scheme, on the one hand, by means of the lubricant accommodating holes formed in the shaft sleeve of the hinge pin device, normal lubrication and operation of the hinge pin can be guaranteed effectively for a long time, and a manual oil injection link is omitted; on the other hand, a dust ring is mounted on the shaft sleeve of the hinge pin device, so that the working environment between the hinge pin and the shaft sleeve can be improved effectively, and the service life of the hinge pin device is prolonged; further, openings and steps are formed on the taper sleeves of the hinge pin device, accordingly, displacement of the hinge pin can be prevented effectively, and an axial positioning function is realized.

Description

technical field [0001] The invention relates to the technical field of coal shearers, in particular to a pin shaft device and a coal shearer. Background technique [0002] Shearer is the core equipment of the fully mechanized mining face, mainly used to complete the steps of coal dropping and coal loading. The two cutting parts on the left and right of the shearer realize the swing under the push of the oil cylinder, and complete the steps of coal dropping and coal loading, which are suitable for different coal seam heights. The hinged connection between the traction part and the cutting part of the shearer is the center of rotation to realize the swing, so the hinged connection device of the shearer is an important part of the connection of the shearer components, and its reliability directly affects the overall performance of the shearer. Since the cutting part of the shearer generates a large impact load during work, the hinged connection device is prone to loose connect...

AI Technical Summary

Problems solved by technology

[0005] (2) Taper shaft taper sleeve type pin shaft device, including: taper sleeve 1061, shaft sleeve 1063 (with oil storage environment), pressure plate 1067, bolt 1064, washer 1065, nut 1066 and pin shaft 1062, taper sleeve 1061 passes through bolt 1064 Connected with the pin shaft 1062, the shaft sleeve 1063 is sleeved on the pin shaft 1062, the pressure plate 1067 is covered outside the tapered sleeve 1061, the bolt 1064, the washer 1065, and the nut 1066 are tightened and fixed. Easy to disassemble, but inconvenient to refill

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