Kiln turning method for rotary kiln large-gear precise alignment

Abstract

The invention discloses a kiln turning method for rotary kiln large-gear precise alignment and relates to the technical field of rotary kiln large-gear installation. A rotary kiln comprises a large gear installed outside a barrel body in a sleeving mode, wherein multiple pin holes are distributed in the inner edge position of the large gear, the large gear is in meshed connection with a small gear, and the small gear is connected with an auxiliary motor through a speed reducer. The kiln turning method comprises the following steps of (A) using multiple spring connecting plates to enable the large gear 1 and the barrel body to be connected; (B) using press wires to fix the long side edges of the spring plates to the barrel body, wherein the arc-shaped concave faces of the spring plates mutually abut against limiting blocks; (C) starting the auxiliary motor to drive the barrel body to rotate and measuring the radial and axial run-out amounts of the large gear; (D) adjusting the large gear; (E) repeating the step B and the step C till the measured radial and axial run-outs of the large gear are qualified; (F) dismounting the press wires and the limiting blocks and enabling the spring plates to be welded with the barrel body. Compared with the prior art, the kiln turning method does not need to dismount spring plates and does not need to repeatedly adjust the press wires and the limiting blocks as well when the large gear is adjusted, and the time and cost are saved.

Description

technical field [0001] The invention relates to the technical field of installation of large gears of a rotary kiln, in particular to a rotary kiln method for fine alignment of large gears during maintenance of the rotary kiln. Background technique [0002] The cement rotary kiln consists of a cylinder and a large gear set outside the cylinder through the central installation hole. The large gear has a plurality of pin holes distributed around the inner edge of the central installation hole. The large gear and the pinion are meshed and connected. Connect with the auxiliary motor through the reducer. The installation accuracy of the large gear is relatively high, generally requiring radial runout ≤ 1.5mm and axial runout ≤ 1mm. Therefore, after the large gear is installed for rough alignment during the maintenance of the rotary kiln, and then for fine alignment, it is necessary to turn the rotary kiln and measure the data with a dial gauge. The existing rotary kiln method f...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a rotary kiln method for fine alignment of the large gear of the rotary kiln, so as to solve the problem of repeated cutting and welding to connect the large gear and the connecting piece of the rotary kiln when adjusting the large gear

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