Vertical mill with double oscillating device

Abstract

The invention discloses a vertical type powder mill with two swinging devices. The vertical type powder mill with the two swinging devices comprises a star rack arranged in a mill body and a grinding roller assembly which is arranged on the star rack in a balanced mode and driven by a suspension mechanism to work. The suspension mechanism comprises a vertical shaft, a first rotary assembly and a second rotary assembly are arranged at the upper end and the lower end of the vertical shaft correspondingly, an upper connecting lug and a lower connecting lug are arranged in the positions, corresponding to the first rotary assembly and the second rotary assembly, of the grinding roller assembly, and the first rotary assembly and the second rotary assembly are fixedly connected with the upper connecting lug and the lower connecting lug through an upper pressing shaft cover and a lower pressing shaft cover; semi-circular grooves are formed in supporting pillars of the star rack, and the part, between the first rotary assembly and the second rotary assembly, of the vertical shaft is clamped in the semi-circular grooves and connected with the star rack into a whole through a pressing cover; the part, in the pressing cover and the semi-circular grooves, of the vertical shaft is sequentially sleeved with an upper vibration-absorption sleeve, a brass gasket and a lower vibration-absorption sleeve of a split structure from top to bottom. The two stages of swinging devices are arranged on the vertical shaft and work continuously, so that the effective operation time of the equipment is prolonged.

Description

technical field [0001] The invention relates to a pulverizer, in particular to a vertical pulverizer with a double swinging device. Background technique [0002] When the vertical mill is working, the plum blossom frame rotates, and the grinding roller assembly driven by the suspension mechanism swings longitudinally with the vertical shaft of the suspension device as the center of the circle under the action of centrifugal force, that is, the vertical shaft does not move, and the grinding roller assembly rotates relative to the vertical shaft. Ensure that the grinding roller is always in close contact with the grinding ring, and grind the material between the grinding roller and the grinding ring into powder. For existing vertical mills (including those produced by our company), the vertical shafts of the suspension mechanism are all fixedly installed on the plum blossom frame, and the plum blossom frame rotates. The rotating assembly of the bearing) drives the grinding ro...

AI Technical Summary

Problems solved by technology

Although the rotating components are equipped with shaft sealing devices, the environment is very harsh due to the large amount of dust generated during the operation of the pulverizer. Once the vertical shaft locks up, the pulverizer must be shut down for maintenance. The vertical shaft structure of the device is complex, which makes it difficult to disassemble during maintenance, increases maintenance time, makes the user unable to continue production, reduces the output of the mill per unit time, and cannot reach the designed output of the mill

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