Tundish sliding plate positioning and mounting device

Abstract

The utility model discloses a tundish sliding plate positioning and mounting device. A solution is provided for solving the problems that a traditional positioning mode is low in adjusting efficiency, unreliable in locking, poor in universality and the like. The device comprises a tundish and a sliding plate assembly, an H-shaped frame plate of the sliding plate assembly is slidably connected with the bottom of the tundish through a dovetail guide rail, and pin rods at the two ends can be inserted into pin holes in the bottom of the tundish to achieve positioning. The Z-shaped lever is hinged to the bottom of the H-shaped frame plate and slidably connected with the L-shaped pull rod to drive the pin rod to ascend and descend. A disc, a baffle and a stop lever in the automatic positioning and locking assembly are matched, a Z-shaped lever is automatically locked after a pin rod is positioned, and the pin rod is prevented from loosening. According to the device, rapid sliding adjustment, precise positioning and reliable locking of the sliding plate assembly are achieved through pure mechanical linkage, compared with a traditional mode, the positioning efficiency is improved by more than 50%, the structure is simple, the device is suitable for various specifications, the maintenance cost is effectively reduced, and the high-precision and high-stability installation requirements of metallurgical production for the tundish sliding plate are met.

Description

Technical Field

[0001] This utility model relates to the technical field of steel continuous casting production equipment, and in particular to a tundish slide plate positioning and installation device. Background Technology

[0002] In continuous casting production in iron and steel metallurgy, the tundish is a crucial piece of equipment that receives molten steel from the ladle and transports it to the crystallizer. The sliding plate assembly at its bottom controls the flow rate and velocity of the molten steel, directly affecting the quality of the continuously cast billet and production safety. The positioning accuracy of the sliding plate assembly is extremely high. If the installation position is off or loose, it may lead to unstable molten steel flow, nozzle blockage, or even steel leakage. Traditional tundish sliding plate positioning devices mostly use bolt fixing or simple pin positioning, requiring frequent disassembly and adjustment. Furthermore, they are prone to displacement under harsh conditions such as high temperature and vibration, making it difficult to meet the demands of efficient production and precise control.

[0003] Currently, the known tundish slide plate positioning technology mainly suffers from the following problems: low positioning and adjustment efficiency: relying on manual measurement and manual tightening, fine-tuning of the slide plate position requires multiple disassembly and reassembly of pins or bolts, which is time-consuming and labor-intensive, especially when switching between multiple specifications of continuous casting production, which seriously affects the efficiency of operation; traditional mechanical locking structures (such as spring clips and wedge blocks) are easily affected by the impact of molten steel flow and equipment vibration, which can lead to loosening of pins or slippage of slide plates, posing safety hazards; the connection method between the slide plate assembly and the bottom of the tundish is limited, making it difficult to adapt to different sizes of tundishes or slide plate models, thus limiting the versatility of the device.

[0004] To address the aforementioned issues, existing technologies attempt to improve positioning performance by adding guiding mechanisms (such as guide rail sliders) or automated locking devices, but these still suffer from drawbacks such as complex structures, high manufacturing costs, or inconvenient maintenance. For example, some patents use electric push rods to drive pin insertion and removal, but the reliability of the motor decreases under high-temperature environments, and the maintenance difficulty of the electrical control system increases. This utility model aims to provide a simple, easy-to-operate, and securely locked tundish slide plate positioning and installation device. Through a mechanical linkage mechanism, it achieves rapid sliding adjustment of the slide plate assembly, precise pin hole positioning, and automatic locking, effectively solving the problems of low positioning efficiency and poor reliability in existing technologies, and meeting the high-precision and high-stability installation requirements of tundish slide plates in metallurgical production. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an intermediate package slide positioning and installation device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A mid-pack slide positioning and mounting device includes a mid-pack, with a slide assembly at the bottom of the mid-pack. The slide assembly includes an H-shaped frame plate slidably disposed at the bottom of the mid-pack, with the top of the H-shaped frame plate slidably abutting against the bottom of the mid-pack. Pins are vertically slidably inserted at both ends of the H-shaped frame plate, with the top ends of the pins slidably inserted inside the mid-pack. A hinge seat is symmetrically provided at the center of the bottom of the H-shaped frame plate, with the same Z-shaped lever hinged to the hinge seat. The bottom end of the pin is connected to the same connecting plate, and an L-shaped pull rod is provided at the center of the top of the connecting plate. The lower end of the Z-shaped lever is slidably connected to the upper part of the L-shaped pull rod. Automatic positioning and locking components for controlling the position of the pins are provided at both ends of the hinge point between the Z-shaped lever and the hinge seat.

[0008] Preferably, the automatic positioning locking assembly includes a disc coaxially disposed at both ends of the Z-shaped lever and the hinge rod of the hinge seat. Each disc has a stop portion on its outer circumference, and each stop portion has a baffle vertically disposed on its side wall. The top of each baffle is hinged to the bottom of the H-shaped frame plate. Each baffle has a horizontal stop bar on the side away from the stop portion. Each stop bar slides through the hinge seat. The opposite ends of the stop bars are provided with a control unlocking assembly for controlling the automatic reset and sliding of the stop bars.

[0009] Preferably, the control unlocking component includes the same slide rod disposed laterally between the opposite surfaces of the hinge seat, the ends of the stop rods are all provided with connecting rods laterally, the slide rods slide through the connecting rods, and the outer peripheral surface of the slide rods is fitted with compression springs, both ends of the compression springs abutting against the side walls of the connecting rods.

[0010] Furthermore, the bottom of the intermediate bag has a number of equally spaced chalk holes that match the pins.

[0011] Furthermore, a straight groove is provided at the connection point between the Z-shaped lever and the L-shaped tie rod.

[0012] Preferably, the top of the H-shaped frame plate is symmetrically provided with dovetail guide rails, which are slidably connected to the bottom of the tundish, and the bottom of the tundish is also provided with a sprue.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. Through the linkage design of Z-type lever and L-type tie rod, the pin can be quickly inserted and removed. With the pin hole array at the bottom of the tundish, the slide plate assembly can complete multi-position precise positioning without repeated disassembly and assembly. Compared with the traditional bolt fixing method, the positioning efficiency is improved by more than 50%, effectively shortening the changeover time in continuous casting production.

[0015] 2. In the automatic positioning and locking assembly, the mechanical interlocking structure between the disc stop and the stop rod, combined with the elastic preload of the compression spring, forms a double anti-loosening mechanism. Under harsh working conditions such as high temperature and vibration, it can effectively resist the impact of molten steel flow, ensuring that the pin rod remains stable and does not disengage. The positioning reliability is improved by more than 80% compared with traditional spring clips.

[0016] 3. The pure mechanical linkage design replaces the complex electronic control system, eliminating the need for easily damaged electronic components such as motors, thus reducing the risk of failure in high-temperature environments; the combination of dovetail guide rails and modular articulated seats is compatible with different specifications of intermediate tundishes and slide plate models, and the components are easy to disassemble and replace, reducing maintenance costs by 40% and significantly improving the versatility and service life of the device.

[0017] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of an intermediate packing slide positioning and mounting device proposed in this utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of an intermediate tundish slide plate positioning and mounting device proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the slide plate assembly structure of the intermediate slide plate positioning and mounting device proposed in this utility model;

[0021] Figure 4 This utility model proposes a positioning and mounting device for an intermediate liner slide. Figure 3 A magnified schematic diagram of the local structure at point A.

[0022] In the diagram: 1. Intermediate liner; 101. Pin hole; 2. Slide assembly; 3. H-shaped frame plate; 4. Pin rod; 5. Connecting plate; 6. L-shaped tie rod; 7. Z-shaped lever; 71. Straight groove; 8. Hinge seat; 9. Disc; 91. Stop; 10. Baffle; 11. Stop bar; 12. Connecting rod; 13. Compression spring; 14. Slide rod; 15. Dovetail guide rail. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1, referring to Figures 1 to 4

[0025] A mid-pack slide positioning and installation device includes a mid-pack 1, a slide assembly 2 at the bottom of the mid-pack 1, and an H-shaped frame plate 3 slidably disposed at the bottom of the mid-pack 1. The top of the H-shaped frame plate 3 slidably abuts against the bottom of the mid-pack 1. Pins 4 are vertically slidably inserted at both ends of the H-shaped frame plate 3. The top ends of the pins 4 are slidably inserted inside the mid-pack 1. A hinge seat 8 is symmetrically disposed at the center of the bottom of the H-shaped frame plate 3. The hinge seat 8 is hinged to the same Z-shaped lever 7. The bottom end of the pin 4 is connected to the same connecting plate 5. An L-shaped pull rod 6 is disposed at the center of the top of the connecting plate 5. The lower end of the Z-shaped lever 7 is slidably connected to the upper part of the L-shaped pull rod 6. Automatic positioning and locking components for controlling the position of the pins 4 are disposed at both ends of the hinge point between the Z-shaped lever 7 and the hinge seat 8.

[0026] Specifically, the automatic positioning and locking assembly includes a disc 9 coaxially mounted at both ends of the hinge rod of the Z-shaped lever 7 and the hinge seat 8. Each disc 9 has a stop 91 on its outer circumference, and each stop 91 has a vertically mounted baffle 10 on its sidewall. The top of each baffle 10 is hinged to the bottom of the H-shaped frame plate 3. A stop bar 11 is laterally mounted on the side of each baffle 10 away from the stop 91. The stop bar 11 slides through the hinge seat 8. A control unlocking assembly for controlling the automatic reset and sliding of the stop bar 11 is provided at the opposite ends of the stop bar 11. The control unlocking assembly includes a control unlocking assembly located laterally mounted on the opposite ends of the hinge seat 8. The same sliding rod 14 between the surfaces, the end of the stop rod 11 is provided with a connecting rod 12 in the horizontal direction, the sliding rod 14 slides through the connecting rod 12, the outer circumference of the sliding rod 14 is fitted with a compression spring 13, both ends of the compression spring 13 abut against the side wall of the connecting rod 12, the bottom of the intermediate bag 1 has a number of pin holes 101 that are adapted to the pin rod 4 at equal intervals, the Z-shaped lever 7 and the L-shaped pull rod 6 are provided with a straight groove 71, the top of the H-shaped frame plate 3 is symmetrically provided with dovetail guide rails 15, the dovetail guide rails 15 are slidably connected to the bottom of the intermediate bag 1, and the bottom of the intermediate bag 1 is also provided with a water outlet.

[0027] Working principle:

[0028] When the position of the skateboard assembly needs to be adjusted, an external force drives the Z-shaped lever 7 to rotate around the hinge seat 8. By pulling one end of the Z-shaped lever upward, its straight groove 71 slides into the L-shaped pull rod 6, causing the L-shaped pull rod to move downward.

[0029] The lower end of the L-shaped tie rod is fixed to the bottom of the two pins 4 via the connecting plate 5. Therefore, the pins move down synchronously with the L-shaped tie rod, and the top end is pulled out from the pin hole 101 at the bottom of the intermediate package 1, thus releasing the positioning constraint of the H-shaped frame plate 3.

[0030] After the pin disengages from the pin hole, the H-shaped frame plate can slide freely on the bottom of the intermediate baffle via the dovetail guide rail 15, thereby adjusting the position of the slide plate assembly.

[0031] The top of the baffle 10 is hinged to the bottom of the H-shaped frame plate and can rotate around the hinge point;

[0032] The stop lever 11 extends laterally through the hinge seat 8 and is connected to the compression spring 13 via the connecting rod 12. In its default state, the spring pushes the stop lever to move outward.

[0033] When the Z-type lever rotates in the locking direction, the coaxial disk 9 rotates with the lever, and its outer circumferential stop 91 disengages from the blocking range of the stop bar. At this time, the stop bar contacts the baffle under the action of the spring force, restricting the baffle to rotate only in the direction away from the stop bar, that is, only allowing the Z-type lever to rotate in the unlocking direction.

[0034] Conversely, when the Z-shaped lever rotates in the unlocking direction, the stop part rotates with the disc to the front of the stop rod. At the same time, the control linkage moves in the same direction, and the stop rod separates from the baffle. Then the disc and the stop part can be flipped and reset, and the pin rod descends and separates from the pin hole.

[0035] After the skateboard assembly slides to the target position, it reverses the Z-shaped lever and pulls it downward, causing the L-shaped pull rod to move upward and the top of the pin to insert into the new pin hole 101.

[0036] At this time, the Z-shaped lever drives the disc 9 to reverse. Relative to the rotation direction when unlocking, the stop part 91 rotates with the disc to the position of contact with the baffle 10. Under the push of the compression spring 13, the stop lever 11 is laterally controlled to abut against the baffle to form a blockage.

[0037] This combination of "mechanical interlock + spring preload" keeps the device locked in place without continuous external force, preventing the pin from coming off due to vibration or impact.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A positioning and mounting device for an intermediate package slide plate, comprising an intermediate package (1), characterized in that, The bottom of the intermediate bag (1) is provided with a sliding plate assembly (2). The sliding plate assembly (2) includes an H-shaped frame plate (3) that is slidably disposed at the bottom of the intermediate bag (1). The top of the H-shaped frame plate (3) slides against the bottom of the intermediate bag (1). Pins (4) are vertically slidably inserted at both ends of the H-shaped frame plate (3). The top of the pins (4) is slidably inserted inside the intermediate bag (1). A hinge seat (8) is symmetrically provided at the center of the bottom of the H-shaped frame plate (3). The hinge seat (8) is hinged to the same Z-shaped lever (7). The bottom end of the pins (4) is connected to the same connecting plate (5). An L-shaped pull rod (6) is provided at the center of the top of the connecting plate (5). The lower end of the Z-shaped lever (7) is slidably connected to the upper part of the L-shaped pull rod (6). Both ends of the hinge point between the Z-shaped lever (7) and the hinge seat (8) are provided with an automatic positioning locking assembly for controlling the position of the pins (4).

2. The intermediate liner positioning and mounting device according to claim 1, characterized in that, The automatic positioning and locking assembly includes a disc (9) coaxially disposed at both ends of the hinge rod of the Z-shaped lever (7) and the hinge seat (8). The outer circumferential surface of the disc (9) is provided with a stop (91). The side wall of the stop (91) is provided with a baffle (10) vertically. The top of the baffle (10) is hinged to the bottom of the H-shaped frame plate (3). The side of the baffle (10) away from the stop (91) is provided with a horizontal stop bar (11). The stop bar (11) slides through the hinge seat (8). The opposite ends of the stop bar (11) are provided with a control unlocking assembly for controlling the automatic reset and sliding of the stop bar (11).

3. The intermediate packing slide positioning and mounting device according to claim 2, characterized in that, The control unlocking assembly includes a slide rod (14) located laterally between opposite surfaces of the hinge seat (8). Each end of the stop rod (11) is provided with a connecting rod (12) laterally. The slide rod (14) slides through the connecting rod (12). A compression spring (13) is sleeved on the outer circumference of the slide rod (14). Both ends of the compression spring (13) abut against the side wall of the connecting rod (12).

4. The intermediate liner positioning and mounting device according to claim 1, characterized in that, The bottom of the intermediate bag (1) has a number of pin holes (101) that are adapted to the pin rod (4).

5. The intermediate packing slide positioning and mounting device according to claim 1, characterized in that, A straight groove (71) is provided at the connection position between the Z-shaped lever (7) and the L-shaped tie rod (6).

6. The intermediate tundish slide plate positioning and installation device according to claim 1, characterized in that, The top of the H-shaped frame plate (3) is symmetrically provided with dovetail guide rails (15), and the dovetail guide rails (15) are slidably connected to the bottom of the intermediate package (1).

7. The intermediate tundish slide plate positioning and mounting device according to claim 1, characterized in that, The bottom of the intermediate package (1) is also provided with a water inlet.

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