Under-furnace buggy ladle towing cable protection device

By designing a protective device for the drag chain of the ladle car under the furnace, using cleaning cotton to remove dust, and using springs and motors to adjust the tension of the drag chain, the problems of drag chain entanglement and dust adhesion in converter steelmaking were solved, achieving clean and uniform winding of the drag chain and extending its service life.

CN223970846UActive Publication Date: 2026-03-06QINGDAO SPECIAL STEEL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

During the converter steelmaking process, splashing of molten steel and slag causes them to adhere to the equipment, making the cable chain prone to overstretching or tangling, thus affecting its service life.

Method used

A protective device for towing a ladle car under the furnace was designed, including a mounting box, a hydraulic cylinder, a connecting plate, cleaning cotton, a spring, and a drive motor. The cleaning cotton removes dust, the spring adjusts the tension of the towing cable, and the drive motor ensures uniform winding of the towing cable to prevent tangling.

Benefits of technology

It effectively cleans dust from the surface of the tow cable, prevents cable tangling, extends service life, and ensures normal use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of smelting equipment, and provides an under-furnace buggy ladle dragging cable protection device which comprises an installation box. The two notches are formed in the symmetrical surfaces of the mounting box; the two long plates are arranged at the symmetrical positions of the surface of one side of the mounting box, hydraulic cylinders are arranged on the faces of the opposite sides of the two long plates, and a guide roller is fixedly mounted in the mounting box; and the two connecting plates are arranged on the surfaces of the output ends of the two hydraulic cylinders. According to the utility model, the towrope is placed along the guide roller by the roller shaft, the tension of the towrope is automatically adjusted by means of the elastic force provided by the spring to the mounting seat, and the towrope is embedded in the two short shafts in a matched manner, so that when the driving motor works, the rotating shaft at the output end drives the limiting block on the outer surface to reciprocate in the limiting groove; and the towrope is matched with the winding equipment to be uniformly wound, and the situation that the towrope is disorderly wound, and normal use in the later period is affected is prevented.
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Description

Technical Field

[0001] This utility model relates to the field of smelting equipment technology, and in particular to a protective device for the dragging of a ladle car under the furnace. Background Technology

[0002] In the process of converter steelmaking, ladle cars are used to transport molten steel ladles from the molten steel receiving bridge to the bottom of the converter for tapping. The ladle car towing cable (also known as a drag chain or cable protection chain) plays a vital role in the metallurgical industry.

[0003] In the current technology, most steelmaking currently uses converters. Due to the influence of the converter process, steel needs to be tapped and slag needs to be dumped frequently during the smelting process. During the tapping or dumping of steel and slag, the molten steel and slag fall from a height and splash. The splashed molten steel or slag comes into contact with dust in the surrounding air and adheres to the surrounding equipment. At the same time, when the ladle car is moving, some of the drag chains are prone to overstretching or tangling, which affects the later use. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the current technology, such as the fact that most steelmaking in converters is affected by the converter process, which requires tapping steel and frequent slag dumping during the smelting process. Due to the tapping or dumping of steel, molten steel and slag fall from a height and splash. The splashed molten steel or slag comes into contact with dust in the surrounding air and adheres to the surrounding equipment. At the same time, when the ladle car is moving, some of the drag chains are prone to overstretching or tangling, which affects the later use of the equipment.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a ladle car towing protection device under the furnace, comprising: a mounting box; two slots formed on the surface of the mounting box at symmetrical locations; and further comprising:

[0006] Two long plates are positioned symmetrically on one side surface of the mounting box, and a hydraulic cylinder is provided on one side of the two long plates opposite to each other. A guide roller is fixedly installed inside the mounting box.

[0007] Two connecting plates are disposed on the output end surfaces of the two hydraulic cylinders, and multiple arc-shaped grooves are formed on the surfaces of the two connecting plates.

[0008] Multiple cleaning cotton pads are arranged on the inner walls of the multiple arc-shaped grooves, and telescopic rods are arranged symmetrically on the surfaces of the two connecting plates, with one end of each telescopic rod set on the surface of the long plate.

[0009] Preferably, connecting blocks are fixedly provided on the symmetrical surfaces of the mounting box, and a limiting groove is formed on one side surface of the mounting box.

[0010] The technical advantages of adopting the above-mentioned further solution are: the mounting box surface is provided with connecting blocks to facilitate installation with bolts, and the mounting box surface is provided with limit grooves to facilitate the limiting of internal parts.

[0011] Preferably, the inner wall of the mounting box is provided with a U-shaped frame, and the surface of the U-shaped frame is provided with multiple springs.

[0012] The technical advantage of adopting the above-mentioned further solution is that the spring is fixed by the U-shaped frame installed on the inner wall of the box.

[0013] Preferably, one end of the plurality of springs is connected by a mounting base, and the inner wall bearing of the mounting base is provided with a roller.

[0014] The technical effect of adopting the above-mentioned further solution is that the spring provides elastic force to the mounting base, causing the internal roller to move.

[0015] Preferably, one end of the mounting base is provided with a limiting rod, and one end of the plurality of limiting rods is movably embedded inside the U-shaped frame.

[0016] The technical effect of adopting the above-mentioned further solution is that the limiting rod on the surface of the mounting base is embedded inside the U-shaped frame to provide limiting for the mounting base.

[0017] Preferably, a mounting bracket is fixedly mounted on one side surface of the mounting box, and a drive motor is provided on the inner wall of the mounting bracket.

[0018] The technical advantage of adopting the above-mentioned further solution is that the drive motor is fixed by the mounting bracket on the surface of the mounting box.

[0019] Preferably, the output end of the drive motor is provided with a rotating shaft, and a limiting block is threaded on the outer surface of the rotating shaft.

[0020] The technical effect of adopting the above-mentioned further solution is that when the drive motor is working, the output end rotating shaft drives the limit block to reciprocate inside the limit groove.

[0021] Preferably, a mounting plate is provided on one side surface of the limiting block, and a short shaft is provided symmetrically on one side surface of the mounting plate.

[0022] The technical advantage of adopting the above-mentioned further solution is that the short shaft is fixed by the mounting plate on the surface of the limiting block, which facilitates the limiting operation of the towing cable.

[0023] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0024] 1. In this utility model, by passing the towing cable through the inside of the slot, when the hydraulic cylinder on the surface of the long plate works, it drives the connecting plate to move along the center of the slot. The cleaning cotton inside the arc-shaped slot comes into contact with the towing cable, and one end of the towing cable is connected to the controller. When the ladle car moves, the dust and other impurities attached to the surface of the towing cable are cleaned to prevent it from affecting its service life.

[0025] 2. In this utility model, the tow cable is placed along the guide roller by the roller shaft. With the help of the elastic force provided by the spring to the mounting seat, the tension of the tow cable is automatically adjusted. The tow cable is embedded in the inside of the two short shafts. When the drive motor is working, the output end rotating shaft drives the limiting block on the outer surface to reciprocate in the limiting groove, so that the tow cable can be evenly wound in conjunction with the winding equipment, preventing the tow cable from becoming messy and tangled, which would affect normal use later. Attached Figure Description

[0026] Figure 1 This utility model provides a side view structural schematic diagram of a ladle car towing protection device under the furnace;

[0027] Figure 2 This utility model provides a top view of the structure of a ladle car towing protection device under the furnace;

[0028] Figure 3 This utility model proposes a protective device for the dragging of ladle cars under the furnace. Figure 1 Enlarged structural diagram at point A in the middle;

[0029] Figure 4 This utility model proposes a protective device for the dragging of ladle cars under the furnace. Figure 1 Enlarged structural diagram at point B.

[0030] Legend:

[0031] 1. Mounting box; 101. Connecting block; 102. Groove; 103. Limiting groove; 104. U-shaped frame; 1041. Spring; 1042. Mounting base; 1043. Roller shaft; 1044. Limiting rod; 105. Mounting frame; 1051. Drive motor; 1052. Rotating shaft; 1053. Limiting block; 1054. Mounting plate; 1055. Short shaft; 106. Guide roller; 2. Long plate; 201. Hydraulic cylinder; 202. Connecting plate; 2021. Telescopic rod; 2022. Arc groove; 2023. Cleaning cotton. Detailed Implementation

[0032] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0033] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0034] Example 1, such as Figures 1 to 4 As shown, this utility model provides a protective device for a ladle car under furnace, including: a mounting box 1; two slots 102, opened on the surface of the mounting box 1 at symmetrical locations; and two long plates 2, set at symmetrical locations on one side surface of the mounting box 1, with a hydraulic cylinder 201 on one side of the two long plates 2 opposite to each other, and a guide roller 106 fixedly installed inside the mounting box 1; two connecting plates 202, set on the output end surfaces of the two hydraulic cylinders 201, with multiple arc-shaped grooves 2022 opened on the surfaces of the two connecting plates 202; multiple cleaning cotton 2023, set on the inner walls of the multiple arc-shaped grooves 2022, and telescopic rods 2021 set at symmetrical locations on the surfaces of the two connecting plates 202, with one end of the multiple telescopic rods 2021 set on the surface of the long plates 2.

[0035] In this embodiment, by passing the towing cable through the inside of the slot 102, when the hydraulic cylinder 201 on the surface of the long plate 2 works, it drives the connecting plate 202 to move along the center of the slot 102. The cleaning cotton 2023 inside the arc-shaped groove 2022 contacts the towing cable, and one end of the towing cable is connected to the controller. When the ladle car moves, the dust and other impurities attached to the surface of the towing cable are cleaned to prevent it from affecting its service life.

[0036] In Example 2, a connecting block 101 is fixedly installed on the symmetrical surface of the mounting box 1. A limiting groove 103 is opened on one side surface of the mounting box 1. A U-shaped frame 104 is provided on the inner wall of the mounting box 1. Multiple springs 1041 are provided on the surface of the U-shaped frame 104. One end of the multiple springs 1041 is connected through a mounting base 1042. A roller shaft 1043 is provided on the bearing of the inner wall of the mounting base 1042. A limiting rod 1044 is provided at one end of the mounting base 1042. One end of the multiple limiting rods 1044 is movably embedded inside the U-shaped frame 104. A mounting frame 105 is fixedly installed on one side surface of the mounting box 1. A drive motor 1051 is provided on the inner wall of the mounting frame 105. A rotating shaft 1052 is provided at the output end of the drive motor 1051. A limiting block 1053 is threaded on the outer surface of the rotating shaft 1052. A mounting plate 1054 is provided on one side surface of the limiting block 1053. A short shaft 1055 is provided symmetrically on one side surface of the mounting plate 1054.

[0037] In this embodiment, the tow cable is placed along the guide roller 106 by the roller shaft 1043. With the help of the elastic force provided by the spring 1041 to the mounting base 1042, the tension of the tow cable is automatically adjusted. The tow cable is embedded in the two short shafts 1055. When the drive motor 1051 is working, the output end rotating shaft 1052 drives the limiting block 1053 on the outer surface to reciprocate in the limiting groove 103, so that the tow cable can be evenly wound in conjunction with the winding equipment, preventing the tow cable from becoming messy and tangled, which would affect its normal use later.

[0038] Working principle: In use, the mounting box 1 is installed on the ladle car by bolts passing through the interior of the connecting block 101. The tow cable is passed through the interior of the slot 102. When the hydraulic cylinder 201 on the surface of the long plate 2 works, it drives the connecting plate 202 to move along the center of the slot 102. The cleaning cotton 2023 inside the arc-shaped groove 2022 contacts the tow cable. One end of the tow cable is connected to the controller. When the ladle car moves, it cleans the dust and other impurities adhering to the surface of the tow cable, preventing damage to its service life. The cable is placed along the guide roller 106 by the roller shaft 1043. With the help of the elastic force provided by the spring 1041 to the mounting base 1042, the tension of the cable is automatically adjusted. The cable is embedded in the two short shafts 1055. When the drive motor 1051 is working, the output end rotating shaft 1052 drives the limiting block 1053 on the outer surface to reciprocate in the limiting groove 103, so that the cable can be evenly wound in conjunction with the winding equipment, preventing the cable from becoming messy and tangled, which would affect normal use later.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A ladle car pusher protection device, comprising: The installation box (1) is provided with two notches (102) on the symmetrical surface of the installation box (1), characterized in that it further comprises: Two long plates (2) are arranged on the symmetrical surface of the side surface of the installation box (1), and one side of the opposite side of the two long plates (2) is provided with a hydraulic cylinder (201), and a guide roller (106) is fixedly arranged in the installation box (1); Two connecting plates (202) are arranged on the output end surface of the two hydraulic cylinders (201), and a plurality of arc-shaped grooves (2022) are arranged on the surface of the two connecting plates (202); A plurality of cleaning cottons (2023) are arranged on the inner wall of the plurality of arc-shaped grooves (2022), and a plurality of telescopic rods (2021) are arranged on the surface of the long plate (2). The surface of the symmetrical surface of the installation box (1) is fixedly provided with a connecting block (101), and the side surface of the installation box (1) is provided with a limiting groove (103).

2. The device according to claim 1, characterized in that: The inner wall of the installation box (1) is provided with a U-shaped frame (104), and the surface of the U-shaped frame (104) is provided with a plurality of springs (1041).

3. The device according to claim 2, characterized in that: One end of the plurality of springs (1041) is connected through a mounting seat (1042), and the inner wall bearing of the mounting seat (1042) is provided with a roller shaft (1043).

4. The device according to claim 3, characterized in that: One end of the mounting seat (1042) is provided with a limiting rod (1044), and the other end of the plurality of limiting rods (1044) is movably embedded in the inner part of the U-shaped frame (104).

5. The device according to claim 4, characterized in that: The side surface of the installation box (1) is fixedly provided with a mounting frame (105), and the inner wall of the mounting frame (105) is provided with a driving motor (1051).

6. A device for protecting the ladle car from the drag of the ladle car truck according to claim 5, characterized in that: The output end of the driving motor (1051) is provided with a rotating shaft (1052), and the outer surface of the rotating shaft (1052) is threadedly provided with a limiting block (1053).

7. A device for protecting the ladle car from the drag of the ladle car truck according to claim 6, characterized in that: The side surface of the limiting block (1053) is provided with a mounting plate (1054), and the symmetrical surface of the side surface of the mounting plate (1054) is provided with a short shaft (1055).

8. The device according to claim 7, characterized in that: ​