Special tool for replacing large ladle cover
By using special tooling for shafts and rotary hoisting rings during the replacement of large bag covers, the problems of small space and difficulty in lifting and hooking are solved, and the rapid replacement of large bag covers is achieved.
Patent Information
- Application Number
- CN202420340894.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-23
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-02-23
AI Technical Summary
During the replacement of large bag covers, the space is small and the lifting and hooking is difficult, resulting in the problem of long replacement time and difficult replacement.
A special tooling including a shaft and a hoist ring is designed. The hoist ring is located on the outside of the hoist and can be rotated along the shaft, simplifying the operation of the hoist hook.
It realizes the quick and easy replacement of large bag covers, which is easier to operate than traditional fixed structure hangers.
Smart Images
Figure CN222593183U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of large bag covers, and in particular relates to a special tool for replacing a large bag cover. Background Art
[0002] As we all know, the ladle cover in the continuous casting workshop is generally located above the ladle turntable. The size of the ladle cover is generally greater than three meters and the mass is hundreds of kilograms. When working, it is necessary to control the cantilever lifting and lowering through the oil cylinder to ensure that the temperature of the molten steel in the ladle molten steel tank is constant and reduce the temperature drop. At present, due to the strict requirements on the position and size of the ladle turntable, technical defects such as small space and difficulty in lifting and hooking often occur during the replacement of the ladle cover. In addition, technical problems such as difficulty in hooking, long replacement time and difficulty in replacement often occur during the replacement of the ladle cover. Utility Model Content
[0003] The utility model solves the technical problems existing in the known technology and provides a special tool for replacing a large bag cover. The large bag cover can be replaced quickly and conveniently by utilizing the matching relationship between the shaft and the lifting ring.
[0004] The purpose of the utility model is to provide a special tool for replacing a large bag cover, comprising:
[0005] A large bag cover of a disc structure, wherein a U-shaped hanger is arranged at the center of the upper surface of the large bag cover, wherein the hanger comprises two legs fixedly connected to the large bag cover, wherein the tops of the two legs are connected by a crossbeam, and an axle is installed between the two legs, wherein the two ends of the axle are located outside the two legs and are connected to the lifting ring by bearings; wherein the lifting ring is a U-shaped structure, wherein the vertical height of the lifting ring is greater than the height of the hanger, and the horizontal width of the lifting ring is greater than the width of the hanger;
[0006] A connecting piece, the connecting piece includes a hook matched with the lifting ring, a U-shaped force arm connected to the overhead crane hook, a transverse through hole is arranged at the upper end of the hook, and a lower cross bar of the U-shaped force arm is embedded in the through hole; the inner diameter of the through hole is larger than the outer diameter of the lower cross beam.
[0007] In a feasible technical solution, the large bag cover comprises a tank cover with a disc structure, a support seat is fixedly mounted on the upper surface of the tank cover, and the hanger is connected to the support seat via a second bolt.
[0008] In a feasible technical solution, a washer is arranged between the second bolt and the support seat.
[0009] In a feasible technical solution, baffles are provided at both ends of the shaft.
[0010] In a feasible technical solution, the baffle is fixed on the shaft by a first bolt.
[0011] In a feasible technical solution, the shaft is also equipped with a weight for counterweight.
[0012] In a feasible technical solution, a washer is arranged between the first bolt and the baffle.
[0013] The advantages and positive effects of the utility model are:
[0014] By adopting the above technical solution, the present application sets an axis and a lifting ring on the traditional large bag cover. The lifting ring is located on the outside of the hanger and can rotate along the axis. Therefore, compared with the traditional fixed structure hanger, it is more convenient for the overhead crane to hook the bag and can quickly replace the large bag cover. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a front view of a preferred embodiment of the utility model;
[0016] Figure 2 It is a right view of a preferred embodiment of the utility model.
[0017] Among them: 1. tank cover; 2. heavy hammer; 3. lifting ring; 4. hanger; 5. baffle; 6. first bolt; 7. connecting piece; 8. second bolt; 9. support seat; 10. shaft. DETAILED DESCRIPTION
[0018] In order to make the above-mentioned purpose, design control system and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.
[0019] like Figure 1 to Figure 2 As shown, the technical solution of the utility model is:
[0020] A special tool for replacing a large bag cover, comprising:
[0021] A large bag cover of a disc structure is provided with a U-shaped hanger 4 at the center of the upper surface of the large bag cover, the hanger 4 includes two legs fixedly connected to the large bag cover, the tops of the two legs are connected by a crossbeam, an axis 10 is installed between the two legs, the two ends of the axis are located outside the two legs, and are connected to the lifting ring 3 through bearings; the lifting ring is a U-shaped structure, the vertical height of the lifting ring is greater than the height of the hanger 4, and the lateral width of the lifting ring is greater than the width of the hanger 4; the lifting ring 3 in the present application is located outside the hanger 4 as a whole, and the lifting ring 3 can be rotated with the axis as a fulcrum; in this embodiment, the large bag cover mainly includes a tank cover 1 of a disc structure, a support seat 9 is fixedly installed on the upper surface of the tank cover 1, and the hanger 4 is connected to the support seat 9 by a second bolt 8. In order to prevent the bolt from loosening, a washer can be provided between the second bolt 8 and the support seat 9.
[0022] The connecting member 7 includes a hook matched with the lifting ring, a square-shaped lever arm connected with the overhead crane hook, a horizontal through hole is arranged at the upper end of the hook, and the lower cross bar of the square-shaped lever arm is embedded in the through hole; the inner diameter of the through hole is larger than the outer diameter of the lower cross beam. When in use, the hook of the overhead crane is lowered to the position of the lifting ring 3, and then the lifting ring 3 is hooked with the hook, and the hook is raised at any time. During the process of the hook rising, the lifting ring 3 is gradually erected until the large bag cover is pulled up.
[0023] In order to protect the shaft, baffles 5 are provided at both ends of the shaft. The baffles 5 can be fixed on the shaft by first bolts 6. In order to prevent the bolts from loosening, washers can be provided between the first bolts 6 and the baffles 5.
[0024] The shaft is also provided with a weight 2 for counterweight.
[0025] This technical solution sets an axis and a lifting ring on the traditional large ladle cover. The lifting ring is located on the outside of the hanger. According to needs, the lifting ring can also rotate along the axis. Therefore, compared with the traditional fixed structure hanger, it is more convenient for the overhead crane to hook the operation; the large ladle cover can be quickly replaced.
[0026] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention.
Claims
1. A special tool for replacing a large bag cover, characterized in that: include: A large bag cover of a disc structure, wherein a U-shaped hanger (4) is arranged at the center position of the upper surface of the large bag cover, the hanger (4) comprises two legs fixedly connected to the large bag cover, the tops of the two legs are connected by a crossbeam, a shaft (10) is installed between the two legs, the two ends of the shaft are located outside the two legs, and are connected to the lifting ring (3) by bearings; the lifting ring is a U-shaped structure, the vertical height of the lifting ring is greater than the height of the hanger (4), and the horizontal width of the lifting ring is greater than the width of the hanger (4); A connecting piece (7), the connecting piece (7) comprising a hook matched with the lifting ring, a U-shaped lever arm connected to the overhead crane hook, a transverse through hole being arranged at the upper end of the hook, a lower cross bar of the U-shaped lever arm being embedded in the through hole; the inner diameter of the through hole is larger than the outer diameter of the lower cross bar.
2. The special tool for replacing the large bag cover according to claim 1 is characterized in that: The large bag cover comprises a tank cover (1) of a disc structure, a support seat (9) is fixedly mounted on the upper surface of the tank cover (1), and the hanger (4) is connected to the support seat (9) via a second bolt (8).
3. The special tool for replacing the large bag cover according to claim 2 is characterized in that: A washer is provided between the second bolt (8) and the support seat (9).
4. The special tool for replacing the large bag cover according to claim 1 is characterized in that: Baffles (5) are provided at both ends of the shaft.
5. The special tool for replacing the large bag cover according to claim 4, characterized in that: The baffle (5) is fixed on the shaft by means of a first bolt (6).
6. The special tool for replacing the large bag cover according to claim 5, characterized in that: A washer is provided between the first bolt (6) and the baffle (5).
7. The special tool for replacing the large bag cover according to claim 1, characterized in that: The shaft is also equipped with a weight (2) for counterweight.