Measuring device for displacement of upper frame and lower frame of fan-shaped section of continuous casting unit

Abstract

The invention discloses a device for measuring displacement of an upper frame and a lower frame of a fan-shaped section of a continuous casting unit, and relates to the technical field of metallurgical equipment. The device for measuring the displacement of the fan-shaped section upper and lower frames of the continuous casting unit comprises a fan-shaped section upper frame, a vertical detection mechanism and a horizontal detection mechanism, and a fan-shaped section lower frame is arranged below the bottom of the fan-shaped section upper frame. The vertical detection mechanism comprises a measuring frame, a rectangular plate, a side plate, a sliding rod, a first rectangular rod, a sliding rod, a second rectangular rod and a laser distance measuring sensor, and the horizontal detection mechanism comprises a first mounting plate, a first moving plate, a second mounting plate, a second moving plate, a mounting seat, a pressure sensor, a limiting bottom plate, a telescopic rod, a spring and a pressing plate. Measurement of displacement in the vertical direction is achieved through the laser distance measuring sensor, the measurement precision is high, pressure is applied to the pressure sensor through the spring to send out a signal, and therefore the displacement of the fan-shaped section upper frame and the fan-shaped section lower frame in the horizontal direction can be monitored.

Description

Technical Field

[0001] The invention relates to the technical field of metallurgical equipment, and in particular to a device for measuring the displacement of upper and lower frames of a continuous casting unit sector. Background Art

[0002] A continuous casting machine is an industrial equipment used to continuously cast high-temperature molten steel into ingots with certain cross-sectional shapes and dimensions. This process involves multiple key equipment, including steel casting equipment, continuous casting machine main equipment, cutting area equipment, ingot rod collection and conveying equipment, etc. The electromechanical and hydraulic integration of these equipment constitutes the core part of the continuous casting machine. Continuous casting machines can be divided into vertical, vertical bending, arc, ultra-low head (elliptical), horizontal, wheel-type and other types according to their structural appearance. They can also be divided into slabs, small square billets, large square billets and the like according to the cross-section of the casting. Continuous casting technology is widely used. It not only occupies an important position in steel production, but also has obvious advantages over traditional mold casting technology due to its short production process, low energy consumption, low cost, high productivity and easy automation. Therefore, it has been rapidly popularized around the world.

[0003] The continuous casting machine fan-shaped segment has certain serrated roll gap defects, which brings serious interference to the management of cold roll gap. The size of the roll gap value directly affects the quality and dimensional accuracy of the casting. In the continuous casting process, by accurately controlling the roll gap value, it can be ensured that the casting reaches the required size and shape requirements. In addition, the measurement and control of the roll gap is also one of the key links to ensure the efficient operation of the continuous casting machine. In actual operation, the roll gap value will vary according to the specific model of the continuous casting machine, process requirements and specific needs of the casting. For the continuous casting machine operator, accurately measuring and controlling the roll gap value is an important skill and responsibility, so a precise measurement device for the displacement of the upper and lower frames of the fan-shaped segment of the continuous casting unit is required. Summary of the invention

[0004] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art, and to provide a measuring device for the displacement of the upper and lower frames of the fan-shaped segments of a continuous casting unit, which can solve the problem of inaccurate detection of the true roll gap value in the vertical and horizontal directions of the fan-shaped segment frame under hot conditions of continuous casting.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for measuring the displacement of the upper and lower frames of the fan-shaped segments of a continuous casting unit, comprising a fan-shaped segment upper frame, a vertical detection mechanism and a horizontal detection mechanism, a fan-shaped segment lower frame is arranged below the bottom of the fan-shaped segment upper frame, the vertical detection mechanism comprises a measuring frame, a rectangular plate, a side plate, a sliding rod, a first rectangular rod, a sliding rod, a second rectangular rod and a laser ranging sensor, the number of the measuring frames is two and they are respectively fixedly connected to the opposite surfaces of the fan-shaped segment upper frame and the fan-shaped segment lower frame, the number of the rectangular plates is two and they are respectively fixedly connected to the corresponding surfaces of the measuring frames, the side plates are fixedly connected to the corresponding surfaces of the rectangular plates, the number of the sliding rods is two and they are both fixedly connected to the side plates, the first rectangular rod is slidably connected to the outer surface of the sliding rod arranged on the bottom measuring frame, the second rectangular rod is slidably connected to the outer surface of the sliding rod arranged on the top measuring frame, the sliding rod is fixedly connected to the bottom of the second rectangular rod, the sliding rod is slidably connected to the inside of the first rectangular rod, the laser ranging sensor is fixedly connected to the surface of the measuring frame, and the horizontal detection mechanism comprises a first mounting plate, a first A movable plate, a second mounting plate, a second movable plate, a mounting seat, a pressure sensor, a pressure sensor, a limiting bottom plate, a telescopic rod, a spring and a pressure plate, the first mounting plate and the second mounting plate are both fixedly connected to the top of a measuring frame arranged on the lower frame of the fan-shaped segment, the first movable plate and the second movable plate are both fixedly connected to the bottom of a measuring frame arranged on the upper frame of the fan-shaped segment, the number of mounting seats is two and they are respectively fixedly connected to the surfaces of the corresponding first mounting plate and the second mounting plate, the number of pressure sensors is two and they are respectively fixedly connected to the corresponding mounting seats, the number of limiting top plates is multiple and they are respectively fixedly connected to the surfaces of the first movable plate and the second movable plate, the number of limiting bottom plates is the same as that of the limiting top plates and they are respectively fixedly connected to the surfaces of the first movable plate and the second movable plate, the limiting bottom plate is located below the limiting top plate, the number of telescopic rods is multiple and they are respectively fixedly connected to the surfaces of the first movable plate and the second movable plate, the pressure plate is fixedly connected to the telescopic rod, the number of springs is two and they are respectively fixedly connected to the corresponding pressure plates, and the ends of the two springs away from the pressure plates are respectively fixedly connected to the first movable plate and the second movable plate.

[0006] Preferably, sliding grooves are provided on both sides of the surface of the first rectangular rod, and sliding blocks are fixedly connected to both sides of the sliding rod. The sliding blocks are located inside the sliding grooves and are slidably connected to the sliding grooves.

[0007] Preferably, the surfaces of the first rectangular rod and the second rectangular rod are both provided with openings adapted to the sliding rod.

[0008] Preferably, the pressure sensor is in contact with the pressure plate and is located at the center of the pressure plate.

[0009] Preferably, the mounting seat is trapezoidal in shape.

[0010] Preferably, the top and bottom of the pressure plate are fixedly connected to limiting blocks, and the limiting blocks are slidably connected to the corresponding limiting top plate and limiting bottom plate.

[0011] Preferably, the surfaces of the limiting top plate and the limiting bottom plate are both provided with limiting grooves for the limiting blocks to slide.

[0012] Preferably, the pressure plate and the slide rod are both made of stainless steel with a smooth surface and relatively hardness.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The measuring device for the displacement of the upper and lower frames of the fan-shaped segment of the continuous casting unit aims the laser diode on the laser ranging sensor at the bottom of the upper frame of the fan-shaped segment to emit laser pulses. After being reflected by the target, the laser is scattered in all directions, and part of the scattered light returns to the sensor receiver to obtain the displacement data, thereby realizing the measurement of vertical displacement with high measurement accuracy.

[0015] 2. The measuring device for displacement of the upper and lower frames of the fan-shaped segment of the continuous casting unit, the first movable plate drives the pressure plate 23 to move and applies pressure to the pressure sensor through the action of the spring. The pressure sensor sends a signal after receiving the pressure, thereby monitoring the horizontal displacement distance between the upper frame of the fan-shaped segment and the lower frame of the fan-shaped segment.

[0016] 3. The measuring device for the displacement of the upper and lower frames of the fan-shaped segment of the continuous casting unit, the pressure plate is slidably connected with the corresponding limit bottom plate and limit top plate through the limit block and the action of the telescopic rod can reduce the influence of gravity on the spring and reduce the calculation error. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0018] Figure 1 It is a schematic diagram of the main body of the present invention;

[0019] Figure 2 For the present invention Figure 1 Schematic diagram at A in the middle;

[0020] Figure 3 It is a schematic diagram of the horizontal detection mechanism of the present invention;

[0021] Figure 4 is a schematic diagram of a second movable plate of the present invention;

[0022] Figure 5 For the present invention Figure 3 Schematic diagram at point B in the middle;

[0023] Figure 6 It is a schematic diagram of the sliding rod of the present invention.

[0024] Figure numerals: 1. upper frame of the sector; 2. lower frame of the sector; 3. measuring frame; 4. rectangular plate; 5. side plate; 6. sliding rod; 7. first rectangular rod; 8. sliding rod; 9. second rectangular rod; 10. first mounting plate; 11. first movable plate; 12. second mounting plate; 13. second movable plate; 14. opening; 15. sliding groove; 16. sliding block; 17. mounting seat; 18. pressure sensor; 19. limiting top plate; 20. limiting bottom plate; 21. telescopic rod; 22. spring; 23. pressure plate; 24. limiting groove; 25. limiting block; 26. laser ranging sensor. DETAILED DESCRIPTION

[0025] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In the description of the present invention, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0029] See also Figure 1-6The present invention provides a technical solution: a device for measuring the displacement of the upper and lower frames of the fan-shaped segment of a continuous casting unit, comprising a fan-shaped segment upper frame 1, a vertical detection mechanism and a horizontal detection mechanism, a fan-shaped segment lower frame 2 is arranged below the bottom of the fan-shaped segment upper frame 1, the vertical detection mechanism comprises a measuring frame 3, a rectangular plate 4, a side plate 5, a sliding rod 6, a first rectangular rod 7, a sliding rod 8, a second rectangular rod 9 and a laser ranging sensor 26, the number of the measuring frames 3 is two and they are fixedly connected to the opposite surfaces of the fan-shaped segment upper frame 1 and the fan-shaped segment lower frame 2, the number of the rectangular plates 4 is two And they are fixedly connected to the corresponding surface of the measuring frame 3, the side plate 5 is fixedly connected to the corresponding surface of the rectangular plate 4, the number of sliding rods 6 is two and they are fixedly connected to the side plate 5, the first rectangular rod 7 is slidably connected to the outer surface of the sliding rod 6 set on the bottom measuring frame 3, the second rectangular rod 9 is slidably connected to the outer surface of the sliding rod 6 set on the top measuring frame 3, the sliding rod 8 is fixedly connected to the bottom of the second rectangular rod 9, the sliding rod 8 is slidably connected to the inside of the first rectangular rod 7, the surface of the first rectangular rod 7 is provided with sliding grooves 15 on both sides, and both sides of the sliding rod 8 are fixed A slider 16 is connected, the slider 16 is located inside the slide groove 15 and is slidably connected to the slide groove 15, and the laser distance sensor 26 is fixedly connected to the surface of the measuring frame 3. The arrangement of 7, 8 and 9 enables the device to move in the vertical direction. When the upper frame 1 and the lower frame 2 of the fan-shaped segment move in the vertical direction, the sliding rod 8 slides inside the first rectangular rod 7. The arrangement of the slide groove 15 and the slider 16 makes the sliding of the sliding rod 8 more stable. Since the upper frame 1 of the fan-shaped segment is located at the top of the lower frame 2 of the fan-shaped segment, the vertical distance between the upper frame 1 and the lower frame 2 of the fan-shaped segment can be The laser diode on the laser ranging sensor 26 is directly used to aim at the bottom of the upper frame 1 of the fan-shaped segment to emit laser pulses. After being reflected by the target, the laser is scattered in all directions, and part of the scattered light returns to the sensor receiver to obtain displacement data, thereby realizing the measurement of vertical displacement with high measurement accuracy. When horizontal displacement occurs between the upper frame 1 of the fan-shaped segment and the lower frame 2 of the fan-shaped segment, the first rectangular rod 7 and the second rectangular rod 9 slide on the surface of the sliding rod 6 respectively. The setting of this structure can avoid the horizontal displacement between the upper frame 1 of the fan-shaped segment and the lower frame 2 of the fan-shaped segment from being hindered, making the structure more reasonable.

[0030] Further, the horizontal detection mechanism includes a first mounting plate 10, a first movable plate 11, a second mounting plate 12, a second movable plate 13, a mounting seat 17, a pressure sensor 18, a pressure sensor 18, a limit base plate 20, a telescopic rod 21, a spring 22 and a pressure plate 23, the first mounting plate 10 and the second mounting plate 12 are both fixedly connected to the top of the measuring frame 3 arranged on the fan-shaped segment lower frame 2, the first movable plate 11 and the second movable plate 13 are both fixedly connected to the bottom of the measuring frame 3 arranged on the fan-shaped segment upper frame 1, and the number of the mounting seats 17 is two and they are respectively fixedly connected to the corresponding first mounting plates 10 and On the surface of the second mounting plate 12, there are two pressure sensors 18, which are fixedly connected to the corresponding mounting seats 17, respectively; there are multiple limit top plates 19, which are fixedly connected to the surfaces of the first movable plate 11 and the second movable plate 13, respectively; there are the same number of limit bottom plates 20 as the limit top plates 19, which are fixedly connected to the surfaces of the first movable plate 11 and the second movable plate 13, respectively; the limit bottom plates 20 are located below the limit top plates 19; there are multiple telescopic rods 21, which are fixedly connected to the surfaces of the first movable plate 11 and the second movable plate 13, respectively; the pressure plates 23 are fixedly connected to the telescopic rods 21; and there are multiple springs 22. There are two springs 22, which are respectively fixedly connected to the corresponding pressure plates 23. One end of the two springs 22 away from the pressure plates 23 is respectively fixedly connected to the first movable plate 11 and the second movable plate 13. When horizontal displacement occurs between the upper frame 1 of the fan-shaped segment and the lower frame 2 of the fan-shaped segment, there are two situations. If the first movable plate 11 and the first mounting plate 10 are close to each other, the first movable plate 11 drives the pressure plate 23 to move and applies pressure to the pressure sensor 18 through the action of the spring 22. After receiving the pressure, the pressure sensor 18 sends a signal and calculates the deformation x of the spring 22 by Hooke's law F=kx (the stiffness coefficient k of the spring 22 is The horizontal displacement distance between the upper frame 1 and the lower frame 2 of the fan segment can be monitored, and since the pressure plate 23 is slidably connected with the corresponding limit bottom plate 20 and the limit top plate 19 through the limit block 25 and the telescopic rod 21, the influence of gravity on the spring 22 can be reduced, and the calculation error can be reduced. If the second movable plate 13 and the second mounting plate 12 are close to each other, the displacement distance between the upper frame 1 and the lower frame 2 of the fan segment can be calculated in the same way. The setting of this structure can realize the use of the spring 22 in a compressed state for measurement when measuring the displacement, so as to obtain the detection result.

[0031] Secondly, the surfaces of the first rectangular rod 7 and the second rectangular rod 9 are provided with openings 14 adapted to the sliding rod 6, the pressure sensor 18 is in contact with the pressure plate 23 and the pressure sensor 18 is located at the center of the pressure plate 23, the shape of the mounting seat 17 is trapezoidal, the top and bottom of the pressure plate 23 are fixedly connected to the limiting block 25, the limiting block 25 is slidably connected to the corresponding limiting top plate 19 and the limiting bottom plate 20, the surfaces of the limiting top plate 19 and the limiting bottom plate 20 are provided with limiting grooves 24 for the limiting block 25 to slide, the pressure plate 23 and the sliding rod 6 are made of 304 stainless steel with a smooth surface and relatively hard, which can reduce friction.

[0032] Working principle: When the upper frame 1 and the lower frame 2 of the fan segment move in the vertical direction, the sliding rod 8 slides inside the first rectangular rod 7. The setting of the slide groove 15 and the slider 16 makes the sliding of the sliding rod 8 more stable. Since the upper frame 1 of the fan segment is located at the top of the lower frame 2 of the fan segment, the vertical distance between the upper frame 1 and the lower frame 2 of the fan segment can be directly measured by the laser diode on the laser ranging sensor 26 to aim at the bottom of the upper frame 1 of the fan segment to emit laser pulses. After being reflected by the target, the laser is scattered in all directions. Part of the scattered light returns to the sensor receiver to obtain displacement data, thereby realizing the measurement of vertical displacement. When horizontal displacement occurs between the upper frame 1 and the lower frame 2 of the fan segment, the first movable plate 11 drives the pressure plate 23 to move and applies pressure to the pressure sensor 18 through the action of the spring 22. The pressure sensor 18 sends a signal after receiving the pressure, thereby monitoring the horizontal displacement distance between the upper frame 1 and the lower frame 2 of the fan segment.

[0033] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A device for measuring the displacement of upper and lower frames of a continuous casting unit segment, characterized in that: include: A sector upper frame (1), wherein a sector lower frame (2) is arranged below the bottom of the sector upper frame (1); A vertical detection mechanism, the vertical detection mechanism comprising a measuring frame (3), a rectangular plate (4), a side plate (5), a sliding rod (6), a first rectangular rod (7), a sliding rod (8), a second rectangular rod (9) and a laser distance sensor (26), the number of the measuring frames (3) being two and being fixedly connected to the opposite surfaces of the upper frame (1) of the fan-shaped segment and the lower frame (2) of the fan-shaped segment respectively, the number of the rectangular plates (4) being two and being fixedly connected to the corresponding surfaces of the measuring frames (3), the side plates (5) being fixedly connected to the corresponding rectangular plates (4 ) surface, there are two sliding rods (6) and both are fixedly connected to the side plate (5), a first rectangular rod (7) is slidably connected to the outer surface of the sliding rod (6) arranged on the bottom measuring frame (3), a second rectangular rod (9) is slidably connected to the outer surface of the sliding rod (6) arranged on the top measuring frame (3), a sliding rod (8) is fixedly connected to the bottom of the second rectangular rod (9), the sliding rod (8) is slidably connected to the inside of the first rectangular rod (7), and a laser distance measuring sensor (26) is fixedly connected to the surface of the measuring frame (3); The horizontal detection mechanism comprises a first mounting plate (10), a first movable plate (11), a second mounting plate (12), a second movable plate (13), a mounting seat (17), a pressure sensor (18), a pressure sensor (18), a limiting bottom plate (20), a telescopic rod (21), a spring (22) and a pressure plate (23); the first mounting plate (10) and the second mounting plate (12) are both fixedly connected to the top of a measuring frame (3) arranged on a fan-shaped segment lower frame (2); the first movable plate (11) and the second movable plate (13) are both fixedly connected to the bottom of a measuring frame (3) arranged on a fan-shaped segment upper frame (1); the number of the mounting seats (17) is two and they are respectively fixedly connected to the surfaces of the corresponding first mounting plate (10) and the second mounting plate (12); the number of the pressure sensors (18) is two and they are respectively fixedly connected to the surfaces of the corresponding first mounting plate (10) and the second mounting plate (12); the number of the pressure sensors (18) is two and they are respectively fixedly connected to the surfaces of the corresponding first mounting plate (10) and the second mounting plate (12); The first movable plate (11) and the second movable plate (13) are fixedly connected to the corresponding mounting seats (17); the number of the limiting top plates (19) is multiple and they are fixedly connected to the surfaces of the first movable plate (11) and the second movable plate (13); the number of the limiting bottom plates (20) is the same as that of the limiting top plates (19) and they are fixedly connected to the surfaces of the first movable plate (11) and the second movable plate (13); the limiting bottom plates (20) are located below the limiting top plates (19); the number of the telescopic rods (21) is multiple and they are fixedly connected to the surfaces of the first movable plate (11) and the second movable plate (13); the pressure plate (23) is fixedly connected to the telescopic rod (21); the number of the springs (22) is two and they are fixedly connected to the corresponding pressure plates (23); and the ends of the two springs (22) away from the pressure plates (23) are fixedly connected to the first movable plate (11) and the second movable plate (13).

2. According to the device for measuring the displacement of the upper and lower frames of the fan-shaped segment of a continuous casting unit as described in claim 1, slide grooves (15) are provided on both sides of the surface of the first rectangular rod (7), and sliders (16) are fixedly connected to both sides of the sliding rod (8), and the sliders (16) are located inside the slide groove (15) and are slidably connected to the slide groove (15).

3. According to the device for measuring the displacement of the upper and lower frames of the fan-shaped segment of a continuous casting unit as described in claim 1, the surfaces of the first rectangular rod (7) and the second rectangular rod (9) are both provided with openings (14) adapted to the sliding rod (6).

4. According to the device for measuring the displacement of the upper and lower frames of the fan-shaped segment of a continuous casting unit as described in claim 1, the pressure sensor (18) is in contact with the pressure plate (23) and the pressure sensor (18) is located at the center of the pressure plate (23).

5. According to the device for measuring the displacement of the upper and lower frames of a continuous casting unit sector segment as described in claim 1, the shape of the mounting seat (17) is a trapezoid.

6. According to the device for measuring the displacement of the upper and lower frames of the fan-shaped segment of a continuous casting unit as described in claim 1, the top and bottom of the pressure plate (23) are fixedly connected to the limit block (25), and the limit block (25) is slidably connected to the corresponding limit top plate (19) and the limit bottom plate (20).

7. According to the device for measuring the displacement of the upper and lower frames of the sector segments of a continuous casting unit as described in claim 1, the surfaces of the limiting top plate (19) and the limiting bottom plate (20) are both provided with limiting grooves (24) for the limiting blocks (25) to slide.

8. According to the device for measuring the displacement of the upper and lower frames of the fan-shaped segments of a continuous casting unit as described in claim 1, the pressure plate (23) and the slide rod (6) are both made of stainless steel with a smooth surface and relatively hardness.

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