Concentricity measuring method for butt-joint flanges of small-diameter container
A technology for container equipment and docking flanges, which is applied to measuring devices, mechanical measuring devices, instruments, etc., can solve problems such as large measurement errors, and achieve the effect of simple operation and accurate measurement dimensions
Active Publication Date: 2016-12-07
LANZHOU LS HEAVY EQUIP
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[0003] Purpose of the invention: overcome the large defect of prior art measurement error
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[0018] The specific implementation of the measurement method will be further described below in conjunction with the accompanying drawings, taking the concentricity measurement of the flange of the burner nozzle on the side wall of the gasifier as an example.
[0019] The tools for measuring the concentricity of the butt joint flange of small-diameter container equipment include: ruler or tape 5, platform 3, contour block 2, pink wire or steel wire 4, and square 8.
[0020] When measuring, place the measuring cylinder 1 on the platform 3, then place a contour block 2 on the inner wall of the symmetrical connecting flange 6 to be measured, tighten the powder line 4 on the pad 2, and measure the inner wall of the symmetrical connecting flange 6 to the powder. The distance h4 between the lines 4 is measured at the positions of the four centerlines in sequence. Among them, the center line is the center line divided by the four equal parts of the outer circumference of the equipmen...
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The invention relates to a concentricity measuring method for butt-joint flanges of a small-diameter container, belongs to the fields of container manufacturing and processing, and overcomes the defect that the measuring error is too large in the prior art. Measuring tools include one measuring tape or steel ruler, a platform, two cushion blocks of the same height, a square and two chalk lines or steel wires; and during measurement, a measuring cylinder 1 is placed on the platform 3, the height-equivalent cushion blocks 2 are placed in the inner walls of the symmetrical tube-connected flanges 6 which need measuring, the chalk line 4 is tightened between the cushion blocks 2, the distances h4 from the inner walls of the symmetrical tube-connected flanges 6 to the chalk line 4 are measured, and measurement is carried out in the positions of four core wires successively. Each pair of symmetrical flange or adapter is measured according to the above procedure, and whether the flanges or adapters are concentric can be detected. The method can be used to measure the concentricity of two symmetrical adapters / flanges of the small-diameter container, and assembling errors are reduced; the measuring tools are commonly seen, extra investment is not needed; and operation is simple, and measurement is relatively accurate.
Description
Technical field [0001] The invention belongs to the field of container manufacturing and processing in the machinery industry. Background technique [0002] In the machinery industry, during the manufacturing process of container equipment, it is often necessary to install some connecting flanges symmetrically. Sometimes, relatively high special requirements are put forward for the control of the concentricity, verticality and concentricity of the connecting flanges. Regarding the measurement of the concentricity of the butt joint flange of small-diameter container equipment, the existing technology only uses a two-point drawing powder line to measure the positioning size, overhang height, and mid-span size of a single connecting flange. This method has a large cumulative error in measurement and concentricity The degree is difficult to control and the production efficiency is low. Contents of the invention [0003] Purpose of the invention: overcome the defect of large m...
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IPC IPC(8): G01B5/252
CPCG01B5/252
Inventor 张建军忽俊成贾小斌魏政武王文华李富亮
Owner LANZHOU LS HEAVY EQUIP