Rotary joint for fan-shaped section of slab continuous casting machine
By designing separate sector-shaped rotary joints, the problem of water leakage in sector-shaped rotary joints was solved, achieving stability in billet quality and continuity in production, and simplifying the replacement process.
Patent Information
- Application Number
- CN202423234527.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-12-26
AI Technical Summary
The existing sector rotary joints are prone to water leakage, which affects the quality of the ingot and reduces the cooling water flow rate of the entire sector. The replacement process is cumbersome, affecting production stability.
A novel sector-shaped rotary joint was designed, comprising components such as a base, a sealing stationary ring, a sealing moving ring, a retaining ring, a compression spring, and a wear-resistant ceramic ring. It separates the cooling water channels of the roller and the bearing housing, and uses a metal hose for connection, thereby increasing sealing and wear resistance and reducing water leakage.
It effectively reduces water leakage, ensures billet quality, avoids affecting production stability due to water leakage, simplifies the replacement process, and improves the production continuity of the continuous casting machine.
Smart Images
Figure CN223460093U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to continuous casting machine fan -shaped section rotary joint technical field, specifically is a kind of slab continuous casting machine fan -shaped section rotary joint. BACKGROUND
[0002] The conventional slab continuous casting machine fan -shaped section mainly guides slab from bending section, prevents the larger bulging strain of casting slab two-phase interface under the static pressure of molten steel, and simultaneously carries out gas-water atomization cooling to casting slab with liquid core, so that casting slab is completely solidified in two cooling zones;
[0003] The slab continuous casting machine is designed by Xizhong, and the fan -shaped section of the two cooling zones has 12 sections, 84 pairs of guide rollers, 7 pairs of rollers in each fan -shaped section, one pair of driving rollers, 6 pairs of free rollers, the roller adopts sectional roller structure, the inside of the roller and bearing seat is cooled by closed circuit circulating water, the cooling water of each roller and bearing seat is the same water, and the cooling sequence is first cooling bearing seat, then entering the inside of the roller through the rotary joint at one end of the roller to cool, and then flowing out through the rotary joint at the other end of the roller to converge into return water pipe.
[0004] Due to the poor working conditions and the limitation of the free roller structure of the fan -shaped section, water leakage often occurs at the water jacket pipe of the free roller, once water leakage occurs, first, it will affect the quality of casting slab, second, water leakage will lead to the reduction of the flow rate of the cooling water of the whole fan -shaped section, resulting in scaling, poor water flow and insufficient cooling, which will cause water leakage. It is necessary to replace the fan -shaped section immediately, and it takes about 3-4 hours to replace a fan -shaped section, which seriously affects the stability of production. UTILITY MODEL CONTENTS
[0005] The technical problem to be solved by the utility model is that when the existing fan -shaped section rotary joint leaks, it is easy to affect the quality of casting slab and lead to the reduction of the flow rate of the cooling water of the whole fan -shaped section, which is more troublesome to replace.
[0006] To solve the above problems, the utility model adopts the technical scheme of a kind of slab continuous casting machine fan -shaped section rotary joint, including base, bearing seat cooling water hole and roller cooling water hole are set in the inside of base, hollow area is set in the inside of base, sealing static ring is arranged in hollow area, static ring stop pin is arranged between sealing static ring and hollow area, sealing dynamic ring is arranged in the inside of one end of hollow area, stop table is fixed in one end of sealing dynamic ring, clamping ring is clamped in one end of hollow area, open steel sheet spring is clamped between clamping ring and stop table, compression spring is clamped between sealing static ring and one end of hollow area.
[0007] As a further scheme of the utility model: dynamic ring fixing sleeve is sleeved on the outside of one end of sealing dynamic ring, limiting groove is formed in the outside of sealing dynamic ring, limiting hole is formed in the side surface of dynamic ring fixing sleeve, dynamic ring stop pin is inserted in limiting hole and limiting groove.
[0008] As a further scheme of the utility model: one end of bearing seat cooling water hole and roller cooling water hole is connected with external cooling water source through metal hose respectively, is used to carry out the cooling of bearing seat and roller.
[0009] As a further scheme of the utility model: the distance between dynamic ring fixing sleeve and base is less than the length of limiting groove, and space is reserved for displacement of the sealing dynamic ring.
[0010] As a further scheme of the utility model: the base and the dynamic ring fixing sleeve outside limiting sleeve are provided with rubber sealing gaskets, which can increase the sealing property.
[0011] As a further scheme of the utility model: one side of the sealing dynamic ring and the sealing static ring in contact is embedded with wear-resistant ceramic ring, which can increase the wear resistance.
[0012] Compared with the prior art, the utility model has the advantages that: the cooling water path of the fan-shaped segment roller bearing seat and the roller cooling water path are separated, when water leakage occurs in the roller water jacket position, the rotating joint at both ends of the leaking roller is replaced with a newly designed rotating joint by using the pouring gap, the cooling water path of the bearing seat remains unchanged, the internal cooling water path of the roller becomes an open circuit, and one cooling water path is connected externally, the leakage amount is greatly reduced, and the quality of the cast blank is not affected, ensuring stable production of the continuous casting machine. BRIEF DESCRIPTION OF DRAWINGS
[0013] The drawings are used to provide further understanding of the utility model, and constitute a part of the specification, and are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation to the utility model. In the drawings:
[0014] Figure 1 It is the overall structure sectional view in the utility model of a slab continuous casting machine fan-shaped segment rotating joint.
[0015] In the drawings:
[0016] 1, base; 2, sealing static ring; 3, static ring stop pin; 4, sealing dynamic ring; 5, clasp ring; 6, open steel sheet spring; 7, compression spring; 8, dynamic ring fixing sleeve; 9, dynamic ring stop pin; 10, wear-resistant ceramic ring; 1.1, bearing seat cooling water hole; 1.2, roller cooling water hole; 1.3, hollow region; 4.1, retaining table; 4.2, limiting groove; 8.1, limiting hole. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0018] The utility model provides a technical scheme: in order to solve the existing problem proposed in the background art.
[0019] The utility model discloses a kind of technical solutions: to solve the existing problem proposed in the background art. Figure 1 It can be known that including base 1, bearing seat cooling water hole 1.1 and roller cooling water hole 1.2 are set in base 1 inside, hollow area 1.3 is set in base 1 inside, sealing static ring 2 is equipped in hollow area 1.3, static ring stop pin 3 is equipped between sealing static ring 2 and hollow area 1.3, sealing dynamic ring 4 is equipped in one end inside of hollow area 1.3, stop table 4.1 is fixed in one end of sealing dynamic ring 4, clamping ring 5 is connected in one end of hollow area 1.3, open steel sheet spring 6 is clamped between clamping ring 5 and stop table 4.1, compression spring 7 is clamped between sealing static ring 2 and one end of hollow area 1.3;
[0020] One end outside of sealing dynamic ring 4 is sleeved with dynamic ring fixed sleeve 8, limiting groove 4.2 is set in the outside of sealing dynamic ring 4, limiting hole 8.1 is set in the side of dynamic ring fixed sleeve 8, dynamic ring stop pin 9 is inserted in limiting hole 8.1 and limiting groove 4.2, one end of bearing seat cooling water hole 1.1 and roller cooling water hole 1.2 is connected with external cooling water source through metal hose, for the cooling of bearing seat and roller, the distance between dynamic ring fixed sleeve 8 and base 1 is less than the length of limiting groove 4.2, to reserve space for displacement of sealing dynamic ring 4, rubber sealing gasket is set on the outside of base 1 and dynamic ring fixed sleeve 8, to increase sealing property, wear-resistant ceramic ring 10 is embedded on the side of sealing dynamic ring 4 and sealing static ring 2, to increase wear resistance.
[0021] The working principle of the application is: when the sector segment roller leaks, the rotating joint at both ends of the roller is replaced with the rotating joint of the design, the bearing seat cooling water hole 1.1 of the rotating joint at both ends of the sector segment roller is connected with a metal hose, so that the cooling water path of the bearing seat is unobstructed, and the roller cooling water hole 1.2 of the rotating joint at one end of the roller is connected with an external water path, so that the cooling water path at the roller is open, which greatly reduces the leakage of the sector segment roller and has no impact on the quality of the cast billet, ensuring stable production of the continuous casting machine.
[0022] The above has described the utility model and its implementation mode, which is not restrictive, and the drawings only show one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.
Claims
1. A segment rotating joint for a slab caster, comprising a base (1), characterized in that: The base (1) is internally provided with bearing seat cooling water holes (1.1) and roller cooling water holes (1.2), and is internally provided with a hollow area (1.3) on the inner side, the hollow area (1.3) is provided with a sealing static ring (2), the sealing static ring (2) and the hollow area (1.3) are provided with a static ring stop pin (3), one end of the hollow area (1.3) is internally provided with a sealing dynamic ring (4), one end of the sealing dynamic ring (4) is fixedly provided with a stop platform (4.1), one end of the hollow area (1.3) is clamped with a clamping ring (5), the clamping ring (5) and the stop platform (4.1) are clamped with an open steel sheet spring (6), the sealing static ring (2) and one end of the hollow area (1.3) are clamped with a compression spring (7).
2. A segment rotating joint for a slab caster according to claim 1, characterized in that: The sealing dynamic ring (4) is externally provided with a dynamic ring fixing sleeve (8), the sealing dynamic ring (4) is externally provided with a limiting groove (4.2), the dynamic ring fixing sleeve (8) is provided with a limiting hole (8.1) on the side, and the limiting hole (8.1) and the limiting groove (4.2) are inserted with a dynamic ring stop pin (9).
3. A segment rotating joint for a slab caster according to claim 1, characterized in that: One end of the bearing seat cooling water hole (1.1) and the roller cooling water hole (1.2) is connected with an external cooling water source through a metal hose.
4. A segment rotating joint for a slab caster according to claim 2, characterized in that: The distance between the dynamic ring fixing sleeve (8) and the base (1) is less than the length of the limiting groove (4.2).
5. A segmental rotary joint for a slab caster according to claim 2, characterised in that: The base (1) and the dynamic ring fixing sleeve (8) are externally provided with a rubber sealing gasket.
6. A segmental rotary joint for a slab caster according to claim 3, characterised in that: The sealing dynamic ring (4) and the sealing static ring (2) are in contact with each other and are embedded with wear-resistant ceramic rings (10) on one side.