Pin shaft convenient for dismounting and mounting fan-shaped section frames
By designing the pin with a split structure and using the cooperation of the wedge block and the air trigger, the problem of the sector-shaped pin being unable to be pulled out is solved, allowing the pin to be reused and reducing the consumption of spare parts.
Patent Information
- Application Number
- CN202421199983.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-05-29
AI Technical Summary
In the continuous casting area equipment of the slab continuous casting machine, the pins of the fan section cannot be pulled out due to long-term online use and high temperature and high humidity environment, and it needs to be destructively removed, resulting in high spare parts costs.
A split pin is designed, which includes an upper arc block, a lower arc block, a wedge block, a cover plate and a connecting bolt. The internal thread of the wedge block and the air trigger cooperate to facilitate the disassembly and reuse of the pin.
The convenient disassembly of the sales axis is achieved, the destructive demolition is avoided, the consumption of spare parts is reduced, and the production of production is safe and smooth.
Smart Images
Figure CN222391723U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a pin shaft which is convenient for connecting and disassembling a sector segment frame and belongs to the technical field of maintenance of a slab continuous casting machine in the metallurgical industry. Background Art
[0002] See attached Figure 1 The equipment in the continuous casting area mainly includes a crystallizer, a bending section, an arc section, a straightening section, a horizontal section, a cutting machine, a rear conveying roller and a tail billet clamping device. The fan-shaped section is composed of an upper and lower frame and a clamping cylinder. The upper and lower frames are connected by a connecting rod with a pin shaft to realize the automatic adjustment of the roller gap. The pin shaft is a common integral structure. The online service cycle of the horizontal section is more than 8,000 furnaces. The fan-shaped section needs to be disassembled for offline maintenance. Due to the long online time of the fan-shaped section, coupled with the high temperature, high humidity, oxidation and corrosion of the environment, the connecting pin shaft cannot be pulled out, and destructive dismantling can only be adopted. The annual pin shaft consumption spare parts cost is more than 100,000 yuan. Utility Model Content
[0003] The utility model aims to provide a pin shaft which is convenient for connecting and disassembling a sector frame, adopts a split structure, is convenient for pulling out the pin shaft, realizes the repeated use of the pin shaft, and solves the problems existing in the background technology.
[0004] The technical solution of the utility model is:
[0005] A pin shaft which is convenient for connecting and disassembling a sector segment frame comprises an upper arc block, a lower arc block, a wedge block, a cover plate and connecting bolts. The upper arc block, the lower arc block and the wedge block are combined together to form a cylinder, and the ends thereof are connected into a whole through the cover plate and the connecting bolts to form a pin shaft.
[0006] The wedge-shaped block is located between the upper arc-shaped block and the lower arc-shaped block.
[0007] The contact surfaces of the wedge block and the upper arc block and the lower arc block are all mutually matched inclined surfaces.
[0008] An internal thread is arranged at the center of the wedge block.
[0009] The upper arc block and the lower arc block have the same structure.
[0010] The utility model has the beneficial effects of: adopting a split structure, facilitating the pulling out of the pin shaft, avoiding destructive dismantling, realizing the reuse of the pin shaft, reducing the consumption of spare parts, and ensuring safe and smooth production. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of background technology;
[0012] Figure 2 This is the front view of the utility model;
[0013] Figure 3 It is a schematic diagram of the combination of the upper arc block, the lower arc block and the wedge block of the utility model;
[0014] Figure 4 This is the front view of the cover plate of the utility model;
[0015] Figure 5 This is a side view of the cover plate of the utility model;
[0016] Figure 6 This is the front view of the wedge block of the utility model;
[0017] Figure 7 for Figure 6 Side view of
[0018] Figure 8 This is the front view of the upper arc block of the utility model;
[0019] Fig. 9 for Figure 8 Side view of
[0020] In the figure: 1. upper arc block; 2. lower arc block; 3. wedge block; 4. cover plate; 5. connecting bolts; internal thread 6; 11. ladle; 12. tundish; 13. crystallizer; 14. bending section; 15. arc section; 16. straightening section; 17. horizontal section; 18. cutting machine; 19. rear conveying roller; 20. slab; 21. ingot; 22. tail ingot clamping and conveying device. DETAILED DESCRIPTION
[0021] The present invention will be further described below by way of examples with reference to the accompanying drawings.
[0022] See attached Figure 2-9 A pin shaft which is convenient for connecting and disassembling a sector frame comprises an upper arc block 1, a lower arc block 2, a wedge block 3, a cover plate 4 and a connecting bolt 5. The upper arc block 1, the lower arc block 2 and the wedge block 3 are combined together to form a cylinder, and the ends thereof are connected into a whole through the cover plate 4 and the connecting bolt 5 to form a pin shaft.
[0023] In this embodiment, refer to the attached Figure 2-9 The pin shaft is composed of four parts including an upper arc block 1, a lower arc block 2, a wedge block 3 and a cover plate 4. The wedge block 3 is located between the upper arc block 1 and the lower arc block 2. The contact surfaces of the wedge block 3 and the upper arc block 1 and the lower arc block 2 are mutually matching inclined surfaces.
[0024] When using, the specific installation steps are as follows:
[0025] (1) Install the connecting rod on the lower frame of the fan-shaped segment. After the upper and lower frames are closed, install the clamping cylinder and adjust the earring hole of the hydraulic cylinder to be concentric with the connecting rod hole;
[0026] (2) Apply anti-seize agent to the inner hole, then place the lower arc block 2 at the lower part of the connecting rod hole, apply anti-seize agent to the working surface, then place the wedge block 3 on the lower arc block 2, and the upper arc block 1 on the wedge block 3;
[0027] (3) Use a copper rod to knock the wedge block 3 to make the ends of the upper arc block 1, the lower arc block 2 and the wedge block 3 flush;
[0028] (4) Use the connecting bolts 5 to install the cover plate 4 so that the pin shaft forms a whole and prevents the wedge block 3 from jumping out.
[0029] When disassembling the pin shaft, first remove the end cover 4, and use the internal thread 6 in the center of the wedge block 3 to install the screw, and use an external air trigger to pull the wedge block 3 out from between the upper arc block 1 and the lower arc block 2, then take out the upper arc block 1 and the lower arc block 2, clean and inspect them, and wait for secondary installation and use.
Claims
1. A pin shaft for facilitating the assembly and disassembly of a sector frame, characterized in that: The invention comprises an upper arc block (1), a lower arc block (2), a wedge block (3), a cover plate (4) and a connecting bolt (5); the upper arc block (1), the lower arc block (2) and the wedge block (3) are combined together to form a cylindrical shape, and the ends of the cylindrical shape are connected to form a whole through the cover plate (4) and the connecting bolt (5) to form a pin shaft.
2. A pin shaft for facilitating assembly and disassembly of a sector frame according to claim 1, characterized in that: The wedge-shaped block (3) is located between the upper arc-shaped block (1) and the lower arc-shaped block (2).
3. A pin shaft for facilitating assembly and disassembly of a sector frame according to claim 2, characterized in that: The contact surfaces of the wedge-shaped block (3) and the upper arc-shaped block (1) and the lower arc-shaped block (2) are all mutually matching inclined surfaces.
4. A pin shaft for facilitating assembly and disassembly of a sector frame according to claim 3, characterized in that: An internal thread (6) is provided at the center of the wedge-shaped block (3).
5. The pin shaft for facilitating assembly and disassembly of a sector frame according to claim 2, characterized in that: The upper arc block (1) and the lower arc block (2) have the same structure.