Tool for measuring width of lower opening of thin slab crystallizer
By designing the lower port width measurement tool of the thin slab crystallizer, using the tube body, rod body, gear and rack structure, the problem of inconvenient measurement of the lower port width of the crystallizer is solved, and the accuracy of the width of the crystallizer is achieved, and the efficiency and quality of casting blanks are improved.
Patent Information
- Application Number
- CN202422399833.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-09-30
AI Technical Summary
In the prior art, the lower width of the thin slab crystallizer is difficult to measure quickly and accurately, resulting in a large deviation in the width of the casting blank, affecting production efficiency and product quality.
A thin slab crystallizer lower port width measurement tool is designed, using a tube body, rod body, gear and rack structure. The gear is adjusted by rotating the handle to drive the rack to telescope, achieving accurate measurement between the narrow plates of the crystallizer.
It realizes timely and accurate measurement of the lower port width of the crystallizer, ensures the accuracy of the width adjustment of the casting blank, and improves production efficiency and product quality stability.
Smart Images
Figure CN223235021U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of thin slab continuous casting machine equipment in steel plants, in particular to a tool for measuring the width of a thin slab crystallizer bottom opening. Background Art
[0002] The continuous casting crystallizer is in the shape of a long funnel, with a length of 1970mm, a depth of 1200mm, and a maximum width of 185mm. The daily production of billets of different specifications and widths is achieved by adjusting the width of the lower mouth of the crystallizer. Since the crystallizer can only be opened to a maximum of 185mm, the operator cannot reach the lower mouth of the crystallizer to measure the actual width of the narrow side copper plate of the crystallizer. In the past, the fixed-length rod that needed to be measured was measured in advance, and the fixed-length rod was used to go down to the bottom of the crystallizer before starting the machine. The actual lower mouth needed to be estimated and measured repeatedly. On the one hand, the measurement time was long, and on the other hand, there were deviations in the estimated measurement, which easily caused large deviations in the actual billet width. Therefore, the billet width to be produced could not be set efficiently and accurately. It was necessary to develop a measuring tool on site that could quickly and accurately measure the width of the lower mouth of the crystallizer. Utility Model Content
[0003] The purpose of the utility model is to design and manufacture a tool for measuring the width of the lower opening of a thin slab crystallizer accurately and conveniently in view of the above-mentioned shortcomings.
[0004] The technical solution of the utility model is: a thin slab crystallizer bottom mouth width measuring tool, which is characterized by comprising a tube body, a cavity base with a communication at the lower end of the tube body, one end of the cavity base connected to a fixed measuring end, a rod body inserted into the tube body, the rod body extending into the cavity base at the lower end of the tube body, and a gear at the inner end thereof, which is connected to the rack; a transverse locking top shaft is provided on the outer surface of the upper part of the tube body.
[0005] The above scheme also includes:
[0006] The upper end of the rod body is provided with a rotating handle.
[0007] The rear end of the rack is inserted into the fixed measuring end.
[0008] The advantages of the utility model are: the tool adopts an operating gear rack structure, which is lowered to the narrow plate of the crystallizer where the width needs to be measured, and the rack is extended and pressed between the two narrow plates of the crystallizer. The tool is taken out and the length of the outer end of the rack and the two ends of the fixed measuring end are measured, so that the width of the lower mouth of the crystallizer can be measured in a timely, accurate and convenient manner, overcoming the disadvantage that it is difficult to use tools such as a ruler to directly measure.
[0009] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1This is a simplified structural diagram of the utility model.
[0011] Figure 2 It is a simplified structural diagram of the utility model in use state. DETAILED DESCRIPTION
[0012] See also Figure 1 、 2 The names of the parts are as follows: tube body 1, rod body 2, cavity base 3, gear 4, rack 5, locking top shaft 6, rotating handle 7, fixed measuring end 8, crystallizer narrow plate 9.
[0013] See also Figure 1 、 2 A tool for measuring the width of the lower mouth of a thin slab crystallizer comprises a tube body 1, the lower end of the tube body 1 is provided with a communicating cavity base 3, one end of the cavity base 3 is connected to a fixed measuring end 8, a rod body 2 is inserted into the tube body 1, the upper end of the rod body 2 is provided with a rotating handle 7, the rod body 2 is extended into the cavity base 3 at the lower end of the tube body 1, and the inner end thereof is provided with a gear 4, the gear 4 is connected to a rack 5, the rear end of the rack 5 is inserted into the fixed measuring end 8, and the front end of the rack 5 can contact the narrow plate 9 of the crystallizer of the required measurement width. A transverse locking top shaft 6 is provided on the outer surface of the upper part of the tube body 1. The tube body 1 is the main body, which is welded with a 20mm steel pipe, and the rod body 2 is welded with a 15mm steel pipe. The telescopic measuring end is a steel pipe with a diameter of 20mm, and a 10mm rack 5 is laterally inserted into the cavity base 3. The rack 5 can freely extend and retract left and right in the cavity base 3, forming the measuring end of the measuring tool. The rack 5 at the measuring end is extended and retracted by the gear 4. The rotation of the gear 4 is adjusted by adjusting the rotating handle 7 connected to the gear 4, thereby adjusting the extension length of the rack 5.
[0014] Usage and working principle:
[0015] First, insert the measuring tool from the top of the crystallizer to the lower end of the crystallizer, adjust the extension length of the rack 5 by rotating the handle 7, and when the fixed measuring end 8 and the rack 5 are completely close to the narrow plate 9 copper plate of the crystallizer, take the measuring tool out of the crystallizer. At this time, use a ruler to measure the total length of the fixed measuring end 8 and the rack 5. This method can achieve accurate measurement of the width of the lower mouth of the crystallizer.
[0016] Before starting up a thin slab continuous casting machine, use this tool to measure the actual mold bottom width. After measurement, the actual width is entered into a computer, which then assigns a value to the computer. The actual mold bottom width is then adjusted to the desired width of the slab to be produced. After adjustment, use this tool again to measure whether the adjusted mold bottom width matches the set width. If so, the width measurement and adjustment is complete. If not, repeat the measurement process.
[0017] After the machine is shut down, the mold lower opening width needs to be re-measured, and this tool is also needed for measurement. The mold lower opening width measuring tool is an indispensable measuring tool for measuring and adjusting the width of the ingot during the continuous casting process. Accurate width measurement can ensure the stability of the ingot product quality.
[0018] By turning the rotating handle 7, the rod body 2 can be rotated, driving the gear 4 to rotate, and the gear 4 drives the rack 5 to move left and right to achieve the purpose of length adjustment.
[0019] This tool allows the telescopic end of the measuring ruler to be adjusted by rotating the rod 2 built into the handle 7, thereby achieving the purpose of measuring the width of the bottom mouth of the crystallizer, which is not measurable in the depth direction. This tool can conveniently measure the width of the bottom mouth of the crystallizer, solving the problem of inability to measure the bottom mouth width of the crystallizer and inaccurate measurement. It can easily adjust and measure the width of the bottom mouth of the crystallizer, and through width measurement, it can produce billets of the required width. At the same time, it can easily verify the extension length of the ruler, and timely and accurately measure the width of the bottom mouth of the crystallizer.
[0020] The above description is only a specific implementation of the present invention, and various examples do not limit the essential content of the present invention.
Claims
1. A thin slab crystallizer bottom width measuring tool, characterized in that The invention comprises a tube body (1), the lower end of the tube body (1) is provided with a cavity base (3) communicating therewith, one end of the cavity base (3) is connected to a fixed measuring end (8), a rod body (2) is inserted into the tube body (1), the rod body (2) extends into the cavity base (3) at the lower end of the tube body (1), the inner end of the rod body (2) is provided with a gear (4), and the gear (4) is connected to a rack (5); the outer surface of the upper part of the tube body (1) is provided with a transverse locking top shaft (6).
2. A thin slab mold lower opening width measuring tool according to claim 1, characterized in that The upper end of the rod body (2) is provided with a rotating handle (7).
3. A thin slab mold lower opening width measuring tool according to claim 1 or 2, characterized in that The rear end of the rack (5) is inserted into the fixed measuring end (8).