The flex arm suspension device between the mill roller assembly and the plum blossom frame

Abstract

The invention discloses a flex arm suspension device between a mill roller assembly and a plum blossom frame, which comprises a plum blossom frame installed with a cross-arm shaft, a grinding roller assembly connected to the cross-arm shaft, and a grinding roller assembly The grinding roller shaft includes an oblique connecting rod and a vertical grinding roller shaft connected to the lower end of the oblique connecting rod. A roller core and a grinding roller are sequentially set on the vertical grinding roller shaft. Bearing holes are opened at both ends of the roller core. The upper and lower bearings Placed in the bearing holes respectively, the upper and lower glands buckled on the upper and lower bearings connect the vertical grinding roller shaft, roller core and grinding roller as a whole, and the vertical grinding roller shaft and roller core between the upper and lower bearings There is an oil ring gap between the working faces; there is a lubricating oil groove in the lower bearing cover, which is filled with lubricating thin oil, and an oil guide ring is fixed at the lower end of the vertical grinding roller shaft, and the outer surface of the oil guide ring is provided with a spiral oil Road; a main oil passage is provided along the central axis of the vertical grinding roller shaft, and the main oil passage extends radially out of the shaft body of the vertical grinding roller shaft above the upper bearing cap. The invention has the advantages of reasonable structure and improved rolling capacity of the pulverizer.

Description

technical field [0001] The invention relates to a pulverizer, in particular to a flex arm suspension device between a pulverizer roller assembly and a quincunx frame. Background technique [0002] The suspension device between the traditional Raymond mill roller assembly and the plum blossom frame is as follows: image 3 As shown: the grinding roller assembly 101 (including the grinding roller shaft and the grinding roller and the grinding ring installed at the lower end of the grinding roller shaft) is connected with the plum blossom frame 103 through the cross arm shaft 102 . When working, the grinding roller assembly 101 is subjected to centrifugal force and swings with the cross-arm shaft 102 as the center of the circle, and the cross-arm shaft 102 swings in the cross-arm sleeve 104 of the plum blossom frame 103, so that the grinding roller 105 is pressed on the grinding ring 106 to grind the material. crushed. Since the center of mass of the grinding roller assembly of...

AI Technical Summary

Problems solved by technology

Since the center of mass of the grinding roller assembly of the traditional structure is approximately located near the point A of the grinding roller shaft, it is closer to the swing center of the cross-arm shaft 102, and the force arm is shorter, the moment of the grinding roller assembly 101 relative to the swing center of the cross-arm shaft 102 Smaller, so the rolling force converted from the self-weight of the grinding roller assembly is also small, which affects the rolling production capacity of the equipment

[0003] At the same time, after the mill with this structure works for a period of time, due to the manufacturing error of the equipment itself and the wear of the grinding roller 105 and the grinding ring 106 in the long-term work, the grinding roller swinging with the cross-arm shaft 102 as the center of the circle will be affected by the centrifugal force. 105 and the grinding ring 106 gradually produce an included angle, resulting in a gradual decrease in the contact area between the grinding roller 105 and the grinding ring 106 (theoretically, the point contact between the grinding roller 105 and the grinding ring 106), thereby reducing the output of the equipment. Can't meet production needs

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