Scale for checking symmetry degree of shaped refractory product

Abstract

The utility model belongs to the technical field of rotary kiln construction and the field of refractory material quality detection, and particularly relates to a scale for checking the symmetry degree of shaped refractory products. The ruler for checking the symmetry degree of the shaped refractory product is composed of a main ruler, a structural rod, measuring rulers and a fastening sliding block, and the measuring rulers on the two sides are ensured to be always in a symmetrical state through the principle of a crank sliding block mechanism. The device is simple and convenient to operate, the symmetry degree of a product can be judged through one-time measurement without other special measuring tools, whether the symmetry degree of the product is abnormal or not can be rapidly judged, the acceptance inspection efficiency is improved, symmetry degree deviation can be visually displayed, and the product quality is improved. Problem products can be conveniently processed and disposed by engineering masonry personnel according to the symmetry degree deviation.

Description

Technical Field

[0001] The utility model belongs to the field of quality inspection of refractory materials, and particularly relates to a symmetry inspection ruler for shaped refractory products. Background Technique

[0002] Shaped refractory products generally refer to refractory materials delivered in a certain designed external shape state. Common ones include various heavy and light refractory bricks, which are widely used in fields such as iron and steel, metallurgy, petrochemical, and environmental protection. Since shaped refractory products need to be laid to form the working lining of high-temperature equipment, the acceptance inspection of external dimensions is generally required before delivery and shipment.

[0003] When the whole or part of the masonry is cylindrical, vertical-thickness wedge bricks (axe-shaped bricks) and side-thickness wedge bricks (knife-shaped bricks) are commonly used as bricks for laying. Products with correct brick shapes can speed up the construction progress, avoid construction losses, and reduce project costs. However, the bilateral wedge degrees of the above two brick shapes may be asymmetric due to untimely die preparation, too large design draft angles, improper adjustment of the tool head in the cutting and grinding section, or too fast feed. This appearance defect will cause the diameter of the masonry to be too large and unable to be built into the installed steel structure. Therefore, the symmetry of the product needs to be checked during the acceptance inspection stage.

[0004] GB / T 10326-2016 "Inspection Methods for Dimensions, Appearance and Cross Sections of Shaped Refractory Products" stipulates the inspection method for the deviation of the center line to characterize the symmetry of the product. This method requires the use of a straight ruler and a square with a size not less than the length of the brick. When the product size is large, there is often no square with the corresponding size at the inspection site, resulting in this inspection being only carried out by visual inspection. Moreover, as daily acceptance inspectors face a large number of products, and the manufacturers are scattered across the country, it is inconvenient to carry large-size measuring tools with them; the method described in the national standard can accurately calculate the degree of deviation of the center line, but the result is not intuitive and cannot directly reflect the impact of the center line deviation in terms of the senses. Content of the Utility Model

[0005] The purpose of the utility model is to provide a symmetry inspection ruler for shaped refractory products, so as to quickly and intuitively check whether the shaped refractory products are symmetric.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A symmetry inspection ruler for shaped refractory products, which is composed of a main ruler, a structural rod, a measuring ruler and a fastening slider; the main ruler is located on the top layer, is provided with a track for the movement of the fastening slider, is installed with the fastening slider, and has rivets for fixing the structural rod at both ends, enabling the structural rod to rotate within a certain range; there are a total of eight structural rods, which are located on the second layer, form two double-rocker mechanisms to realize the displacement of the slider on the main ruler, and the structural rods are connected by rivets and can rotate within a certain range; the measuring ruler is located on the third layer, has a track in the middle for the fastening slider to move, and is installed with the fastening slider for adjusting the position of the measuring ruler; the width of the slot of the fastening slider is the same as that of the main ruler and the measuring ruler, and it can move on the main ruler and the measuring ruler, and connects the structural rod and the measuring ruler through a fastening screw. When the fastening screw is loosened, the structural rod and the measuring ruler can rotate within a certain range, and when tightened, the structural rod and the measuring ruler cannot rotate.

[0008] The present utility model only provides a measuring tool for checking symmetry, and the dimensions of each part can be adjusted according to the actual situation. In a feasible dimension configuration, the dimensions of the main parts are as follows:

[0009] The length of the main ruler is 650 mm, the width is 20 mm, the length of the main ruler track is 600 mm, and the width is 5 mm; the length of the structural rod is 170 mm, and the width is 20 mm; the length of the measuring ruler is 650 mm, the width is 20 mm, and the length of the measuring ruler track is 600 mm, and the width is 5 mm.

[0010] The advantages of the present utility model are as follows: (1) It can check whether the sample is symmetric with a single measurement and intuitively display the symmetry deviation, improving the inspection efficiency; (2) It does not require the cooperation of special measuring tools; (3) It is mainly used for the inspection of symmetry degree, has a special shape, and can play a role in reminding the inspector to conduct symmetry inspection; (4) The structural rod can be fully close to the main ruler direction, which is convenient to carry. Description of the Drawings

[0011] Figure 1 It is a schematic diagram of the symmetry detection ruler.

[0012] Figure 2 It is a schematic diagram of the main ruler.

[0013] Figure 3 It is a schematic diagram of the structural rod.

[0014] Figure 4 It is a schematic diagram of the fastening slider.

[0015] Figure 5 It is a schematic diagram of the measuring ruler.

[0016] In the figure: 1. Measuring ruler 1; 2. Measuring ruler 2; 3. Main ruler fastening slider 1; 4. Main ruler fastening slider 2; 5. Main ruler; 6. Main ruler track; 7. Measuring ruler 1 fastening slider 1; 8. Measuring ruler 2 fastening slider 1; 9. Measuring ruler 1 track; 10. Measuring ruler 2 track; 11. Measuring ruler 1 fastening slider 2; 12. Measuring ruler 2 fastening slider 2; 13 - 20. Structural rods; 21. Fastening screw. Specific implementation manner

[0017] In combination with the attached drawings, the implementation manner of the present utility model is as follows:

[0018] Loosen the main ruler fastening slider 3 and the main ruler fastening slider 4, so that the dimension between the measuring ruler 1 and the measuring ruler 2 is greater than the maximum width of the refractory brick;

[0019] Loosen the fastening sliders on the measuring rulers, namely the measuring ruler 1 fastening slider 7, 8, the measuring ruler 2 fastening slider 1, 11, the measuring ruler 1 fastening slider 2, 12, the measuring ruler 2 fastening slider 2, adjust the length distribution of the measuring rulers, avoid interference between the measuring ruler 1 and the measuring ruler 2, and fasten the above four fastening sliders after adjustment;

[0020] Place the measuring ruler 1 close to one side of the sample to be tested, move the measuring ruler 2 towards the opposite side of the sample. When the measuring ruler 2 can no longer move, observe: If both the measuring ruler 1 and the measuring ruler 2 can be attached to the two opposite sides of the sample, it indicates that the two opposite sides of the sample are symmetrical; if one end of the measuring ruler 2 cannot be attached to the opposite side of the sample, it indicates that the two opposite sides are asymmetrical, and the gap where it cannot be attached is the asymmetrical deviation.

Claims

1. A symmetry inspection ruler for shaped refractory products, characterized in that: It consists of a main scale, a structural rod, a measuring scale and a fastening slider; the main scale is located on the uppermost layer, has a track for cooperating with the movement of the fastening slider, is installed with a fastening slider, and has rivets at both ends for fixing the structural rod, so that the structural rod can rotate within a certain range; there are eight structural rods in total, which are located on the second layer, forming two sets of double rocker mechanisms to realize the displacement of the slider on the main scale, and the structural rods are connected by rivets and can rotate within a certain range; the measuring scale is located on the third layer, has a track in the middle for the fastening slider to move, and is installed with a fastening slider for adjusting the position of the measuring scale; the slot width of the fastening slider is the same as that of the main scale and the measuring scale, can move on the main scale and the measuring scale, and the structural rod and the measuring scale are connected by fastening screws. When the fastening screws are loosened, the structural rod and the measuring scale can rotate within a certain range, and when tightened, the structural rod and the measuring scale cannot rotate.

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