Hydraulic lifting device of a ladle lining tool

Abstract

The utility model provides a kind of hydraulic lifting device of ladle masonry frock, belong to smelting equipment technical field, solve the problem of the device that needs both quick and accurate lifting and also load-bearing masonry material in the limited space ladle inner wall, the utility model includes two groups of symmetrically arranged shear fork arm, top surface and base, two groups of symmetrically arranged shear fork arm are arranged between top surface and base, two groups of shear fork arm are connected by hydraulic cylinder support shaft, and hydraulic cylinder support shaft is equipped with hydraulic oil cylinder.The utility model solves the influence of frock size in the ladle masonry under complex environment, increases the stability, security of device, guarantees the up and down accurate lifting of ladle masonry frock hydraulic lifting device top surface.

Description

Technical Field

[0001] This utility model belongs to the technical field of metallurgical equipment, specifically relating to a hydraulic lifting device for ladle masonry fixtures. Background Technology

[0002] The hydraulic lifting device for ladle masonry fixtures is used in high-load, high-precision environments and in the masonry of different types of ladles in the smelting industry. It features a compact structure, high load-bearing capacity, and reusability, which can solve the problem of frequently changing different types of fixtures in ladle masonry, greatly improve the ladle masonry process, and solve the problem of multi-person collaboration in ladle masonry work.

[0003] When operating the hydraulic lifting device of the ladle masonry tooling, a hydraulic cylinder with specific power is required to complete the lifting height within a certain range. This device works in the confined space inside the ladle wall, where the bottom of the ladle has very poor flatness, and the ladle masonry process is time-sensitive. Therefore, it is necessary to develop a hydraulic lifting device that can lift quickly and accurately while also bearing heavy loads of masonry materials. Utility Model Content

[0004] The purpose of this utility model is to provide a hydraulic lifting device for steel ladle masonry work, so as to solve the problem of high safety and stability in a device that can quickly and accurately lift and bear heavy loads of masonry materials in the confined space of the inner wall of a steel ladle.

[0005] The technical solution of this utility model is: a hydraulic lifting device for steel ladle masonry fixtures, comprising two sets of symmetrically arranged scissor arms, an upper platform and a base. The scissor arms include a first scissor arm, a second scissor arm, a third scissor arm and a fourth scissor arm. The first scissor arm and the second scissor arm are hinged by a pin, and the third scissor arm and the fourth scissor arm are hinged by a pin. One end of the first scissor arm and the fourth scissor arm are hinged by a cotter pin, and one end of the second scissor arm and the third scissor arm are hinged by a cotter pin. The other end of the first scissor arm and the fourth scissor arm are respectively provided with a fixed support lug, and the other end of the second scissor arm and the third scissor arm are respectively provided with a roller. The two sets of scissor arms are connected by a hydraulic cylinder support shaft, and a hydraulic cylinder is installed on the hydraulic cylinder support shaft. The bottom of the upper table is provided with a track, and the rollers on the second scissor arm are slidably installed in the track. The fixed support lugs on the first scissor arm are fixedly connected to the bottom of the upper table. The upper part of the base is provided with a track, the rollers on the third scissor arm are slidably installed in the track, and the fixed support lugs on the fourth scissor arm are fixedly connected to the upper part of the base.

[0006] As a further improvement of this utility model, a bearing is provided inside the roller, and bearing end caps are provided on both sides of the bearing. The bearing end caps are fixed to the roller by bolts.

[0007] As a further improvement of this utility model, a synchronization shaft is provided between the two sets of symmetrically arranged scissor arms.

[0008] As a further improvement of this utility model, a limiting rod is provided on the base.

[0009] As a further improvement of this utility model, lifting ears are provided on both sides of the base.

[0010] As a further improvement of this utility model, the upper platform adopts a layout of circular steel plate and channel steel to form a load-bearing structure.

[0011] As a further improvement of this utility model, the base is rectangular in shape.

[0012] The beneficial effects of this utility model are as follows: This invention features two symmetrical scissor arm assemblies. The scissor arms are connected to the fixed support lugs, rollers, and other components via pin hinges. The fixed support lugs are welded to the upper platform, which serves as a key component for bearing the load during steel ladle construction and uses channel steel as the frame beam. The fixed support lugs are welded to the base, which serves as the hydraulic lifting device for the steel plate construction fixture, as well as the component for installing the hydraulic pump and bearing the weight of the device. The hydraulic cylinder is mounted between the two scissor arms via a hydraulic cylinder support shaft. The limit rod on the base represents the lowest safe position of the device.

[0013] This invention utilizes a hydraulic cylinder to control the synchronous rotation of a scissor arm, thereby achieving precise vertical lifting of the upper platform of the hydraulic lifting device for ladle construction fixtures. By employing this invention, the limitations imposed by fixture dimensions during ladle construction in complex environments are overcome. The addition of a scissor arm and a fixed support lug and roller mechanism between the hydraulic cylinder and the upper platform increases the stability and safety of the device, ensuring precise vertical lifting of the upper platform of the hydraulic lifting device for ladle construction fixtures. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the upper platform in this utility model; Figure 3 This is a schematic diagram of the scissor arm in this utility model; Figure 4 This is a schematic diagram of the base structure in this utility model.

[0015] Figure 5 This is a three-dimensional view of the roller structure in this utility model.

[0016] In the diagram: 1-Upper platform; 2-First scissor arm; 3-Second scissor arm; 4-Third scissor arm; 5-Fourth scissor arm; 6-Hydraulic cylinder; 7-Hydraulic cylinder support shaft; 8-Fixed support shaft lug; 9-Base; 10-Limit rod; 11-Lifting lug; 12-Railway; 13-Roller; 14-Pin; 15-Synchronous shaft; 16-Cotter pin; 17-Busset; 18-Sleeve; 19-Bearing; 20-Bearing end cap; 21-Bolt; 22-Nut. Detailed Implementation

[0017] like Figures 1-5 As shown, a hydraulic lifting device for a steel ladle masonry tool includes two sets of symmetrically arranged scissor arms, an upper platform 1, and a base 9. The scissor arms include a first scissor arm 2, a second scissor arm 3, a third scissor arm 4, and a fourth scissor arm 5. The first scissor arm 2 and the second scissor arm 3 are hinged together by a pin 14, and the third scissor arm 4 and the fourth scissor arm 5 are hinged together by a pin 14. One end of the first scissor arm 2 and the fourth scissor arm 5 is hinged together by a cotter pin 16, and one end of the second scissor arm 3 and the third scissor arm 4 is hinged together by a cotter pin 16. The other end of the first scissor arm 2 and the fourth scissor arm 5 is respectively provided with a fixed support lug 8, and the other end of the second scissor arm 3 and the third scissor arm 4 is respectively provided with a roller 13. The two sets of scissor arms are connected by a hydraulic cylinder support shaft 7, and a hydraulic cylinder 6 is provided on the hydraulic cylinder support shaft 7. The bottom of the upper platform 1 is provided with a track 12, and the roller 13 on the second scissor arm 3 is slidably disposed in the track 12. The fixed support lug 8 on the first scissor arm 2 is fixedly connected to the bottom of the upper platform 1. The upper part of the base 9 is provided with a track 12, the roller 13 on the third scissor arm 4 is slidably disposed in the track 12, and the fixed support lug 8 on the fourth scissor arm 5 is fixedly connected to the upper part of the base 9.

[0018] The shaft pin 14 mates with the bushing 17, and the cotter pin 16 mates with the retaining sleeve 18 for fixation; the roller 13 is installed via the nut 22; the fixed support lug 8 is welded to the upper platform 1. The upper platform 1, as a key component for bearing the load during ladle construction, uses a circular steel plate and channel steel layout to support the load, integrating with the internal shape of the ladle for better utilization of space. The fixed support lug 8 is welded to the base 9. The base 9 serves as the hydraulic lifting device for the ladle construction fixture, lifting itself and bearing the weight of the device. The base 9 of the hydraulic lifting device for the ladle construction fixture is made of square tubes spliced ​​and welded into a cuboid, increasing stability on the uneven bottom of the ladle. The limit rod 10 on the base 9 is the lowest safe position of the device, preventing safety hazards when the hydraulic lifting device of the ladle construction fixture is in the lowest lifting position. The lifting lug 11 is welded to the frame of the base 9, allowing the lifting device to be safely and stably lifted into the inner space of the ladle using ladle construction lifting equipment. The piston rod of the hydraulic cylinder 6 moves up and down, driving the hydraulic cylinder support shaft 7 to rotate the scissor arm, thereby pushing the roller 13 of the scissor arm to slide on the track 12.

[0019] The working process of this utility model is as follows: When the piston rod of the hydraulic cylinder 6 extends, it pushes the hydraulic cylinder support shaft 7 upward, causing the rollers 13 at one end of the second scissor arms 3 and the third scissor arms 4 to move along the track 12 of the upper platform 1 and the base 9, thus causing the first scissor arms 2, the second scissor arms 3, the third scissor arms 4 and the fourth scissor arms 5 to rotate along the pivot pin 14, thereby raising the upper platform 1. When the piston rod of the hydraulic cylinder 6 retracts, it pushes the hydraulic cylinder support shaft 7 downward, causing the rollers 13 at one end of the second scissor arms 3 and the third scissor arms 4 to move along the track 12 of the upper platform 1 and the base 9, thus causing the first scissor arms 2, the second scissor arms 3, the third scissor arms 4 and the fourth scissor arms 5 to rotate along the pivot pin 14, thereby lowering the upper platform 1.

[0020] This invention drives the movement of the scissor arm under the action of the hydraulic cylinder 6. The scissor arm is hinged to the fixed support lug 8 by the pin 14, thereby realizing the rotational movement of the scissor arm. Alternatively, the scissor arm and the roller 13 mechanism are connected by the pin 14 and the bearing 19, thereby realizing the rotational movement of the scissor arm and the linear movement of the roller 13 along the track 12.

[0021] Under the action of the hydraulic cylinder 6, when the upper platform 1 descends to a certain height, the limiting rod 10 contacts the upper platform 1, restricting the upper platform 1 from descending further and ensuring the safety of the device. This invention also features two sets of symmetrical lifting lugs 11 installed on the device base 9, enabling the rapid hoisting of the hydraulic lifting device for the ladle construction tool into the inner wall of the ladle.

Claims

1. A hydraulic lifting device for steel ladle masonry equipment, characterized in that: The device includes two sets of symmetrically arranged scissor arms, an upper platform (1) and a base (9). The scissor arms include a first scissor arm (2), a second scissor arm (3), a third scissor arm (4) and a fourth scissor arm (5). The first scissor arm (2) and the second scissor arm (3) are hinged by a pin (14), and the third scissor arm (4) and the fourth scissor arm (5) are hinged by a pin (14). One end of the first scissor arm (2) and the fourth scissor arm (5) are hinged by a cotter pin (16), and one end of the second scissor arm (3) and the third scissor arm (4) are hinged by a cotter pin (16). The other end of the first scissor arm (2) and the fourth scissor arm (5) are respectively provided with a fixed support lug (8), and the other end of the second scissor arm (3) and the third scissor arm (4) are respectively provided with a roller (13). The two sets of scissor arms are connected by a hydraulic cylinder support shaft (7), and a hydraulic cylinder (6) is provided on the hydraulic cylinder support shaft (7). The bottom of the upper platform (1) is provided with a track (12), and the roller (13) on the second scissor arm (3) is slidably disposed in the track (12). The fixed support lug (8) on the first scissor arm (2) is fixedly connected to the bottom of the upper platform (1). The base (9) is provided with a track (12) on the upper part, and the roller (13) on the third scissor arm (4) is slidably disposed in the track (12). The fixed support lug (8) on the fourth scissor arm (5) is fixedly connected to the upper part of the base (9).

2. A hydraulic lifting device for a steel ladle masonry fixture according to claim 1, characterized in that: The roller (13) is provided with a bearing (19), and bearing end caps (20) are provided on both sides of the bearing (19). The bearing end caps (20) and the roller (13) are installed and fixed by bolts (21).

3. A hydraulic lifting device for a steel ladle masonry fixture according to claim 1 or 2, characterized in that: A synchronous shaft (15) is provided between the two sets of symmetrically arranged scissor arms.

4. A hydraulic lifting device for a steel ladle masonry fixture according to claim 3, characterized in that: The base (9) is provided with a limiting rod (10).

5. A hydraulic lifting device for a steel ladle masonry tool according to claim 4, characterized in that: The base (9) is provided with lifting ears (11) on both sides.

6. A hydraulic lifting device for a ladle masonry tool according to claim 5, characterized in that: The upper platform (1) adopts a layout of circular steel plate and channel steel to form a load-bearing structure.

7. A hydraulic lifting device for a steel ladle masonry fixture according to claim 6, characterized in that: The base (9) is rectangular solid.

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