Miller lining processing technique
A processing technology and bushing technology, which is applied in the field of mill bushing processing technology, can solve problems such as the difficulty that the cylinder and the bushing hole cannot be overlapped and installed, so as to reduce the time, reduce the processing cost and improve the working efficiency. Effect
Active Publication Date: 2015-07-29
JINAN HEAVY MACHINERY JOINT STOCK
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to provide a new processing technology of the mill bushing to solve the problem that the barrel and the bushing holes cannot be overlapped to cause installation difficulties.
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[0019] The present invention will be specifically described below in conjunction with the accompanying drawings and embodiments.
[0020] figure 2 Shown is a schematic diagram of the assembly of the bushing and cylinder of the present invention.
[0021] image 3 The invention is shown with figure 2 The enlarged schematic diagram of part C.
[0022] The present invention relates to a bushing 1, a cylinder body 2 and a bolt 3. The bushing 1 is provided with eight pieces, and the structure of the bushing 1 is as follows: Figure 1a Shown in -d, described α=75 °, concrete process step is as follows:
[0023] 1) Install the eight bushes 1 evenly on the inner wall of the cylinder 2 according to the assembly requirements of the drawings, and spot weld the bushes 1 and the inner wall of the cylinder 2 together;
[0024] 2) The fitter draws the hole processing line of the cylinder body 2 according to the drawing requirements;
[0025] 3) Boring the holes on the circumference of...
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The invention discloses a miller lining processing technique and relates to a lining, a barrel body and bolts. The processing technique comprises the following steps: spot-welding the lining and the barrel body; marking hole processing lines according to drawing demands; enabling bored holes of the barrel body and the lining to meet the drawing demands; changing a small milling cutter, milling falcon-shaped grooves with width of 6mm on the lining and meeting the drawing demand; grinding the welded points of the barrel body and the lining, installing gaskets and the bolts to fasten the lining and the barrel body. By adopting the lining processing technique, non-coincide of hole centers caused by separate processing of the lining and the barrel body is avoided, and repairing work during assembling is reduced; moreover, the assembling is finished at a time; holes of the lining and the barrel body are bored at the same time, thus time of processing the lining is reduced and processing cost is reduced; the lining and the barrel body have been spot-welded before processing; after the holes are bored, the lining and the barrel body are combined through the bolts; assembling time of the lining is shortened and working efficiency is improved.
Description
technical field [0001] The invention relates to a processing technology of a mill liner, which belongs to the technical field of mechanical processing. Background technique [0002] The coal mill is mainly composed of end cover, cylinder, bearing, lubrication and other main components. The cylinder is the main part of the coal mill and is also a vulnerable part. In order to prevent the wear of the cylinder, it is generally installed on the cylinder wall Wear-resistant bushing ( Figure 1a -d), the bushing and the cylinder are combined through the bolt holes. The bushing at the left end of the cylinder wall is a finished product and does not need to be processed. The normal processing technology for the thin bushing at the right end is that the fitter drills the hole of the bushing according to the drawing requirements, and then draws a falcon-shaped groove with a width of 6mm according to the drawing requirements. , the slotting machine inserts the falcon grooves on the bus...
Claims
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IPC IPC(8): B23P15/00
CPCB02C17/22B23P15/00
Inventor 高进曹永华赵立华林朋朋
Owner JINAN HEAVY MACHINERY JOINT STOCK