A precision casting stopper head cooling mechanism

Abstract

The utility model discloses a precision casting stopper head cooling mechanism of stopper rod related technical field, including support chassis and setting above its mounting plate, fixed mounting has driven support seat and initiative support seat on the mounting plate, driven support seat with initiative support seat all correspondingly installed have support roller, the side of installation board is located on the support chassis and is provided with the installation vertical board, the outside fixed mounting of installation vertical board has telescopic pneumatic cylinder, the telescopic end of telescopic pneumatic cylinder is connected with cooling pipe, is set up on the cooling pipe and has the vent hole. The utility model discloses setting up support roller on the mounting plate and supporting stopper rod, and initiative support seat is equipped with motor, can drive the rotation of support roller on initiative support seat, drives the rotation of stopper rod under the action of friction, can effectively support, and it is convenient to even heat dissipation.

Description

Technical Field

[0001] This utility model belongs to the technical field of stopper rod cooling, specifically, it relates to a cooling mechanism for the head of a precision cast stopper rod. Background Technology

[0002] Precision casting is a broad concept encompassing various processes, with continuous casting being one of the advanced technologies. Functional refractory components such as integral stoppers, long nozzles (for the ladle), submerged entry nozzles (for the tundish), and tundish nozzles are collectively referred to as the three major components of continuous casting. The materials used are primarily alumina-carbon, alumina-zirconium-carbon, magnesia-carbon, or magnesia-alumina spinel-carbon, and the forming method employs isostatic pressing. After the stopper rod is oxidized and fired, it is placed on a rack and cooled by blowing air onto its surface. However, this cooling effect is not good, and the stopper rod needs to be moved and reversed after a certain period of time because some parts can be cooled by the air and some cannot. The parts that cannot be cooled dissipate heat slowly and have a higher temperature, which can easily cause cracks on their surface and reduce the quality of the stopper rod. Application No.: CN201921613622.6 discloses a continuous casting machine stopper rod cooling device, which extends a cooling pipe into the core of the stopper rod and sprays cold air onto the inner wall of the stopper rod through multiple vents. This effectively and evenly cools the stopper rod from the inside out, and the cooling effect is good. However, since the wall thickness of the stopper rod is usually between 12.5mm and 15mm, the external cooling efficiency is low during the internal-to-external cooling process. The temperature difference between the internal and external cooling will have a certain impact on the mechanical properties of the stopper rod. In addition, the lower end of the stopper rod is located in a groove, and the outside cannot effectively dissipate heat.

[0003] In view of this, this utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a cooling mechanism for the head of a precision cast stopper rod. The basic concept of the technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows: A precision-cast stopper rod head cooling mechanism includes a support base and a mounting plate disposed above it. A driven support seat and an active support seat are fixedly mounted on the mounting plate. Support rollers are correspondingly mounted on both the driven support seat and the active support seat. A mounting plate is disposed on the side of the mounting plate on the support base. A telescopic cylinder is fixedly mounted on the outer side of the mounting plate. The telescopic end of the telescopic cylinder is connected to the cooling pipe. A vent hole is opened on the cooling pipe. A support roller is disposed on the mounting plate between the active support seat and the driven support seat. The position of the support roller corresponds to the position of the cooling pipe and is used to provide auxiliary support for the cooling pipe.

[0005] As a further embodiment of this utility model: the cooling pipe has an E-shaped structure, the upper pipe of the cooling pipe has a vent hole on its lower side, the lower pipe of the cooling pipe has a vent hole on its upper side, and the middle pipe of the cooling pipe has two sets of vent holes symmetrically arranged, or four sets of vent holes are evenly distributed along the circumference.

[0006] As a further improvement of this utility model: the mounting plate is provided with multiple sets of roller support seats, each set of roller support seats includes two active support seats and two passive support seats, the two active support seats are connected by a connecting rod, the connecting rod is equipped with a transmission box, the setting of the connecting rod enables the support rollers on the two active support seats in the same set to rotate synchronously.

[0007] As a further improvement of this utility model: a wear-resistant sleeve is provided on the outer side of the supporting roller. The wear-resistant sleeve is made of a high-temperature and wear-resistant material. The wear-resistant sleeve is provided with a spacer groove structure along the axial direction of the supporting roller to increase the friction.

[0008] As a further embodiment of this utility model: a mating groove is provided on the mounting plate at the corresponding position of the support roller, and roller seats are provided at both ends of the mating groove. The support roller is rotatably connected to the roller seats. Multiple support rollers are provided between each set of roller support seats for auxiliary support of the lower tube of the cooling pipe.

[0009] As a further embodiment of this utility model: a support plate is fixedly installed on the support base frame, a connecting plate is fixedly installed on the upper end of the support plate, a refrigeration unit and a high-pressure air pump are installed on the connecting plate, and the high-pressure air pump is connected to the cooling pipe through a delivery pipe for supplying cold air to the cooling pipe.

[0010] As a further improvement of this utility model: a motor is provided at the power input end on the outside of the transmission box, and an upper bracket is provided below the transmission box to effectively support the transmission box.

[0011] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art.

[0012] This invention supports the stopper rod by setting support rollers on the mounting plate. The active support base is equipped with a motor, which can drive the support rollers on the active support base to rotate. Under the action of friction, the stopper rod is driven to rotate, which can provide effective support and facilitate uniform heat dissipation.

[0013] The cooling pipe of this utility model has an E-type structure, which can simultaneously cool the inner and outer walls of the stopper rod. This not only improves cooling efficiency but also reduces the impact of temperature difference on the performance of the stopper rod. The cooling pipe can be extended and retracted under the action of the telescopic cylinder, and the setting of the support roller makes the extension and retraction adjustment of the cooling pipe have good stability.

[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is the front view of the present invention; Figure 3 This is a side view of the present invention; Figure 4 This is a schematic diagram of the mounting plate and its supporting structure of this utility model.

[0016] In the diagram: 1. Support base frame; 2. Support plate; 3. Connecting plate; 4. Refrigeration unit; 5. High-pressure air pump; 6. Telescopic cylinder; 7. Mounting plate; 8. Conveying pipe; 9. Cooling pipe; 10. Mounting upright plate; 11. Driven support seat; 12. Support roller; 13. Roller seat; 14. Vent hole; 15. Active support seat; 16. Support roller; 17. Wear-resistant sleeve; 18. Upper bracket; 19. Motor; 20. Transmission box; 21. Connecting rod; 22. Mating groove.

[0017] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0019] like Figures 1 to 4As shown, a precision casting stopper head cooling mechanism includes a support base 1 and a mounting plate 7 mounted on top of it. A driven support seat 11 and an active support seat 15 are fixedly mounted on the mounting plate 7. Support rollers 16 are correspondingly mounted on both the driven support seat 11 and the active support seat 15. A mounting upright plate 10 is provided on the side of the mounting plate 7 on the support base 1. A telescopic cylinder 6 is fixedly mounted on the outer side of the mounting upright plate 10. The telescopic end of the telescopic cylinder 6 is connected to a cooling pipe 9. A vent hole 14 is provided on the cooling pipe 9. A support roller 12 is provided on the mounting plate 7 between the active support seat 15 and the driven support seat 11. The position of the support roller 12 is opposite to the position of the cooling pipe 9 and is used to provide auxiliary support for the cooling pipe 9.

[0020] Among them, the cooling pipe 9 has an E-type structure. The upper pipe of the cooling pipe 9 has a vent hole 14 on the lower side, and the lower pipe of the cooling pipe 9 has a vent hole 14 on the upper side. The middle pipe of the cooling pipe 9 has two sets of vent holes 14 symmetrically arranged on the upper and lower sides, or four sets of vent holes 14 evenly distributed along the circumference.

[0021] The mounting plate 7 is provided with multiple sets of roller support seats. Each set of roller support seats includes two active support seats 15 and two passive support seats 11. The two active support seats 15 are connected by a connecting rod 21. The connecting rod 21 is equipped with a transmission box 20 to connect the rod 21, so that the support rollers 16 on the two active support seats 15 in the same set rotate synchronously.

[0022] A wear-resistant sleeve 17 is provided on the outer side of the support roller 16. The wear-resistant sleeve 17 is made of high temperature and wear-resistant material. The wear-resistant sleeve 17 has a spacer groove structure along the axial direction of the support roller 16 to increase the friction.

[0023] The mounting plate 7 has a mating groove 22 at the corresponding position of the support roller 12. Roller seats 13 are provided at both ends of the mating groove 22. The support roller 12 is rotatably connected to the roller seat 13. Multiple support rollers 12 are provided between each set of roller support seats to provide auxiliary support for the lower tube of the cooling pipe 9.

[0024] A support plate 2 is fixedly installed on the support base frame 1. A connecting plate 3 is fixedly installed on the upper end of the support plate 2. A refrigeration unit 4 and a high-pressure air pump 5 are installed on the connecting plate 3. The high-pressure air pump 5 is connected to the cooling pipe 9 through a delivery pipe 8 to supply cold air to the cooling pipe 9.

[0025] A motor 19 is provided at the power input end of the transmission box 20, and an upper bracket 18 is provided at the bottom of the transmission box 20 to effectively support the transmission box 20.

[0026] The working principle of this utility model is as follows: When cooling the fired stopper rod, the operator places the stopper rod on the support rollers 16 of a set of support seats using a clamp. When placing the stopper rod, the telescopic cylinder 6 is in a retracted state. After the stopper rod is arranged and placed, the refrigeration unit 4, the high-pressure air pump 5 and the telescopic cylinder 6 are started. The telescopic cylinder 6 extends, so that the middle tube of the cooling pipe 9 extends into the core position inside the stopper rod. The upper tube of the cooling pipe 9 is located above and below the stopper rod, and the lower tube of the cooling pipe 9 is located below the telescopic tube. The lower tube of the cooling pipe 9 contacts the support roller 12 on the mounting plate 7, so that the extension and retraction adjustment process of the cooling pipe 9 has good stability. The high-pressure air pump 5 delivers cold air to the cooling pipe 9 through the delivery pipe 8. The cold air is sprayed onto the inner and outer walls of the stopper rod through multiple vents 14. The inner and outer walls of the stopper rod are simultaneously cooled by the cold air. The motor 19 drives the connecting rod 21 to rotate through the transmission box 20, which in turn drives the support rollers 16 on the two active support seats 15 of the same group to rotate. The friction between the wear-resistant sleeve 17 and the stopper rod drives the stopper rod to rotate, effectively and uniformly cooling the inner and outer walls of the stopper rod. The end of the stopper rod can be effectively cooled, and the cooling effect is good. The telescopic cylinder 6 is equipped with pneumatic components such as air pump, pipes, and control valves to ensure the realization of the function of the telescopic cylinder 6. The electrical components of the device are electrically connected to the power supply, and the control operation of the electrical components adopts existing technology. This invention supports the stopper rod by setting support rollers 16 on the mounting plate 7. The active support seat 15 is equipped with a motor 19, which can drive the support rollers 16 on the active support seat 15 to rotate. Under the action of friction, the stopper rod will rotate, which can provide effective support and facilitate uniform heat dissipation. The cooling pipe 9 is set with an E-shaped structure, which can cool the inner and outer walls of the stopper rod at the same time, which can improve the cooling efficiency and reduce the impact of temperature difference on the performance of the stopper rod. The cooling pipe 9 can be extended and retracted under the action of the telescopic cylinder 6. The setting of the support roller 12 makes the extension and retraction adjustment of the cooling pipe 9 have good stability.

[0027] 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 way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

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