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Points to be aware of during the installation and alignment of the large ring gear of the rotary kiln Time: 2015-01-14 Source: http://
The rotary kiln is an important equipment in the cement production line. Among all the components of the rotary kiln, the large ring gear plays a very important role in the operation of the rotary kiln. This article invites experts from Red Star Machine to explain the installation and alignment of the large ring gear of the rotary kiln.
It is also a very important step for the future use of the equipment before installation. The correct installation is directly related to the use effect and production efficiency of the equipment. The Red Star machine prompts that the installation and alignment of the large ring gear should be prepared well before lifting, and must be carried out in strict accordance with the technical requirements.
1. Before installing and aligning the large ring gear, the center line of the cylinder at the riveted spring plate must be adjusted to the correct position.
2. After the preparation work is completed, the ring gear is roughly aligned in the order of the radial and rear axial directions. After the rough correction, it is necessary to carry out the fine alignment, and the kiln body is rotated to perform the correct alignment. According to the adjustment order and method of the rough finding timing, the adjustment and measurement are repeated, and the numerical control index is finally adjusted to the radial runout value <1.5 mm. The jitter value is <1.2mm.
3. For the pre-assembled large ring gear, it must be hoisted as a whole. Otherwise, the pin and bolt at the opposite ring of the ring gear are difficult to install and fasten, and the pitch error at the interface and the roundness tolerance of the ring gear cannot be guaranteed.
4. In the process of installation and alignment of the large ring gear, the pre-assembly of the ring gear is a very critical link. Pre-installation must be of high quality, high standard and strict requirements. The alignment during the installation of the ring gear and the cylinder is only "centering" and the ring gear cannot be corrected.
5. The radial and end face runout values ​​of the precise timing must be less than the standard value. When the screw top and the wire are removed, the radial and end face runout of the ring gear may increase, but the difference will not exceed the standard.
6. The spring plate and the cylinder must be tightly fitted in the free state. The spring plate and the cylinder should not be forcibly fixed and riveted. Otherwise, after the screw top and the wire are loosened, the radial direction of the ring gear under the action of the spring plate And the amount of runout will increase or the error will exceed the standard.
7. When the spring plate and the cylinder are matched with the drill, follow the sequence, and tighten one bolt for each hole.
8. After the rotary kiln overhaul is delivered to the production operation for 12h-24h, the kiln should be stopped to check the rivet condition of the spring plate, and the large ring gear counter screw should be strengthened twice.
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