Worm type rotary vibration platform

Abstract

The utility model belongs to the technical field of pouring of dip pipes, and discloses a worm type rotary vibration platform which is characterized in that a check ring is fixedly arranged on the edge of the upper part of a supporting circular truncated cone; the vibration motor is fixedly arranged in the center of the bottom of the barrel; the convex seat is fixedly arranged on the upper circle center of the supporting circular truncated cone; the fixed shaft is fixedly arranged in a circular groove in the upper part of the convex seat; the slewing bearing is fixedly arranged on the fixed shaft; the supporting ring is fixedly arranged on the outer side of the slewing bearing; the follow-up ring is fixedly arranged on the outer ring of the slewing bearing; the hydraulic motor is fixedly arranged on the outer side of the supporting ring, the outer end of the worm is fixedly connected with a power output shaft of the hydraulic motor, the worm penetrates through the center of the fixing body and extends into the supporting ring, the driving gear is fixedly arranged at the inner side end of the worm, and the driving gear is in radial meshing transmission with the radial gear of the slewing bearing. The utility model has the beneficial effects that: the castable is uniformly distributed; and the porosity is reduced, so that the density and compressive strength of a pouring layer are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pouring immersion pipes, and in particular relates to a worm-type rotating vibration platform. Background Art

[0002] The dip tube, primarily used for slag removal from molten steel, operates in the harshest environment within the RH refining furnace and is the most severely corroded part of the furnace. This is primarily due to the inner wall of the dip tube being in direct contact with the molten steel and subject to the high-speed airflow and the stress impact of sudden cooling and heating after the molten steel is processed. Simultaneously, the outer wall of the dip tube is in direct contact with the slag and is also subject to the stress impact of sudden cooling and heating. Severe erosion of the castable material within the dip tube results in a very short service life. This inevitably increases the frequency of dip tube replacement, leading to an increase in the number of sudden cooling and heating cycles within the vacuum chamber of the RH furnace, shortening the service life of the furnace's middle and bottom structures. Therefore, increasing the service life of the RH furnace's dip tube can correspondingly extend the service life of the furnace.

[0003] The immersion pipe mainly includes a steel shell, an external casting layer, an inner casting layer of the steel shell, and refractory bricks. According to the casting process of the immersion pipe, a layer of castable material needs to be cast on the outer surface of the steel shell, and a layer of castable material needs to be cast on the inner wall of the steel shell to serve as the refractory lining of the steel shell. When the castable material of the immersion pipe is cast and formed, it is generally cast on a vibration platform by vibration molding. The main technical problems with the vibration molding platform in the prior art are: specifically in the actual vibration molding process, the vibration molding platform currently used only has the function of vibration and cannot take into account both vibration and rotation of the vibration molding platform at the same time; because the diameter of the immersion pipe is usually between 1.5 meters and 3 meters, the immersion pipe itself is heavy, and the discharge port of the mixer is fixed when the castable material is distributed. Whether pouring the outer casting layer of the steel shell or pouring the casting layer on the inner wall of the steel shell, the uniformity of the castable material distribution cannot be guaranteed. Based on the above-mentioned defects in the prior art, the inventors have developed a worm-type rotary vibration platform, which can well solve the above-mentioned technical problems in the prior art. Utility Model Content

[0004] To address the aforementioned technical issues, the present invention provides a worm-type rotating vibration platform with a simple structure and scientifically designed design, which enables simultaneous vibration and molding of the impregnation tube while rotating. This invention not only addresses the single function of the vibration platform in the prior art, but also, by utilizing the vibration platform's rotational function, solves the problem of uneven distribution of the casting material when casting both the outer casting layer of the steel shell and the casting layer on the inner wall of the steel shell.

[0005] The technical solution adopted by the present invention is: a worm-type rotating vibration platform, including a support 1, a cylinder 2 and a supporting cone 3; the support 1 is fixedly arranged at the bottom position of the cylinder 2, and four of the support 1 are symmetrically arranged at the bottom of the cylinder 2 in a front-to-back and left-right manner; the cylinder 2 is a hollow cylindrical type, and the supporting cone 3 is fixedly arranged at the upper center position of the cylinder 2; the retaining ring 4 is fixedly arranged at the upper edge of the supporting cone 3, and the retaining ring 4 is annular; the vibration motor 5 is fixedly arranged at the bottom center of the cylinder 2; the boss 6 is fixedly arranged on the upper center of the supporting cone 3, and the upper center of the boss 6 is provided with a circular groove; the fixed shaft 8 is fixedly arranged in the upper circular groove of the boss 6, and the slewing bearing 7 is fixedly arranged on the fixed shaft 8; the slewing bearing 7 includes an inner ring 71 and an outer ring 72, and the radial gear 73 is fixedly arranged on the circumferential surface of the outer ring 72; the support ring 9 is fixed It is arranged on the outer side of the slewing bearing 7, and the support ring 9 is fixed to the upper surface of the support table 3; the follower ring 10 is fixed on the outer ring 72 of the slewing bearing 7, and the follower ring 10 is ring-shaped; the hydraulic motor 11 is fixed on the outer side of the support ring 9, and the hydraulic motor 11 is fixed to the upper part of the support table 3. The fixed body 13 passes through the rear body of the rear side of the support ring 9 and is fixed to the support ring 9. The outer end of the worm 12 is fixedly connected to the power output shaft of the hydraulic motor 11, and the worm 12 extends through the center of the fixed body 13 to the inside of the support ring 9. The drive gear 14 is fixedly provided at the inner end of the worm 12, and the drive gear 14 is radially meshed with the radial gear 73 of the slewing bearing 7 for transmission; the rotating table 15 is fixedly provided on the upper part of the follower ring 10, and the immersion pipe 16 is placed on the upper center of the rotating table 15 through a crown crane or a lifting mechanism.

[0006] The height of the support 1 is greater than that of the vibration motor 5; the cylinder 2, the supporting truncated cone 3 and the retaining ring 4 are concentric.

[0007] The vibration motor 5 is fixedly connected to the control switch and the power supply via connecting wires; the vibration motor 5 is suspended at the bottom of the cylinder 2.

[0008] The inner ring 71 of the slewing bearing 7 is fixedly mounted on the upper portion of the fixed shaft 8 , and a rotation gap is reserved between the bottom of the slewing bearing 7 and the upper portion of the boss 6 .

[0009] The height of the radial gear 73 is equal to that of the driving gear 14 , and the radial gear 73 and the driving gear 14 are tangentially meshed and transmitted.

[0010] The height of the follower ring 10 is greater than that of the support ring 9 , and the follower ring 10 and the support ring 9 are concentrically arranged inside and outside.

[0011] The hydraulic motor 11 is fixedly connected to the oil tank of the hydraulic station through two hydraulic oil pipes, and the hydraulic station delivers high-pressure hydraulic oil to the hydraulic motor to rotate the hydraulic motor 11.

[0012] The bus bar of the fixed body 13 is provided with a through hole in the axial direction, and the worm 12 is installed in the axial through hole of the fixed body 13 , and the worm 12 can move freely in the through hole of the fixed body 13 .

[0013] The rotating platform 15 and the follower ring 10 are concentric, and a rotation gap is reserved between the bottom of the rotating platform 15 and the upper part of the supporting ring 9.

[0014] The operating process of this worm-type rotary vibration platform is as follows: when the outer casting layer or inner wall casting layer of the steel shell of the immersion pipe 16 is required, the steel shell of the immersion pipe 16 is first placed at the upper center position of the rotating table 15 and the supporting formwork is fixed; then the mixing port of the mixer is aligned with the outer or inner wall of the steel shell of the immersion pipe 16, and the mixer pours the mixed casting material between the steel shell and the supporting formwork; at the same time, the operator starts the vibration motor 5 and the hydraulic motor 11 through the control switch. The hydraulic rotation of the hydraulic motor 11 drives the worm 12 to rotate, and the rotation of the worm 12 drives the rotation of the driving gear 14. The meshing transmission of the driving gear 14 and the radial gear 73 of the slewing bearing 7 realizes that the outer ring 72 of the slewing bearing 7 rotates about the fixed shaft 8 and the inner ring 71 as the rotation center, and the moving ring 10 rotates at a uniform speed. Driven by the rotation of the moving ring 10, the rotating table 15 rotates at a uniform speed. At the same time, the vibration effect of the vibration motor 5 is combined to finally realize the vibration rotation of the steel shell of the immersion pipe 16. The vibration and rotation of the steel shell of the immersion pipe 16 cooperates with the continuous distribution of the mixer to achieve the uniform distribution of the castable. At the same time, the vibration of the immersion pipe 16 can make the internal particles of the castable cross-arranged, increase the molding density of the castable, and at the same time discharge the air in the castable, improve the internal molding structure of the castable, and improve the molding quality of the external casting layer or the inner wall casting layer of the steel shell of the immersion pipe 16.

[0015] The beneficial effects of the utility model are:

[0016] 1. The rotating action of the rotary table is used to make the steel shell of the immersion pipe rotate at a uniform speed when pouring the outer or inner wall pouring layer, thus achieving uniform distribution of the pouring material.

[0017] 2. The vibration effect of the rotating vibration platform is used to improve the molding density and strength of the casting layer on the outer or inner wall of the immersion pipe steel shell, so that the particles of the casting layer are closely arranged, the porosity is reduced, and thus the density and compressive strength of the casting layer are improved; the casting molding efficiency of the immersion pipe steel shell casting layer is high, the operation is simple and easy to control, and labor costs are saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0020] Figure 3 It is a cross-sectional view of the utility model;

[0021] Markings in the figure: 1. Support, 2. Cylinder, 3. Supporting table, 4. Retaining ring, 5. Vibration motor, 6. Boss, 7. Slewing bearing, 71. Inner ring, 72. Outer ring, 73. Radial gear, 8. Fixed shaft, 9. Support ring, 10. Follower ring, 11. Hydraulic motor, 12. Worm, 13. Fixed body, 14. Driving gear, 15. Rotating table, 16. Dipping tube. DETAILED DESCRIPTION

[0022] The specific implementation of the present invention is further described in detail below with reference to the accompanying drawings.

[0023] The utility model provides a worm-type rotating vibration platform:

[0024] like Figure 1 As shown, support 1 is fixedly mounted at the bottom of cylinder 2. Four support 1 are symmetrically arranged front-to-back and left-to-right on the bottom of cylinder 2. Support 1 is higher than the vibration motor 5. This arrangement not only provides stable support for cylinder 2 but also provides control for the fixed installation of vibration motor 5. It also allows the vibration motor 5 to be suspended in the air, increasing its vibration amplitude and thus enhancing the vibration effect of the worm-type rotary vibration platform.

[0025] like Figure 1 As shown, a ring-shaped retaining ring 4 is fixed to the upper edge of the support truncated table 3. The retaining ring 4 protects the slewing bearing 7, hydraulic motor 11, worm 12, and drive gear 14, preventing on-site dust and castable material from entering the interior of the worm-type rotary vibration platform and reducing the meshing transmission accuracy of the worm 12, drive gear 14, and radial gear 73 of the slewing bearing 7. Furthermore, it also provides safety protection for the operator.

[0026] like Figure 2 As shown in FIG3 , a boss 6 is fixedly mounted on the upper center of the support truncated platform 3. A circular groove is provided at the upper center of the boss 6. A fixed shaft 8 is fixedly mounted in the upper circular groove of the boss 6. The slewing bearing 7 is fixedly mounted on the fixed shaft 8. This arrangement allows the inner ring of the slewing bearing 7 to be fixed to the support truncated platform 3, thereby securing the inner ring 71 of the slewing bearing 7.

[0027] like Figure 2 and 3As shown, the slewing bearing 7 includes an inner ring 71 and an outer ring 72, with a radial gear 73 fixedly mounted on the circumferential surface of the outer ring 72. This arrangement of the slewing bearing 7, on the one hand, utilizes the meshing transmission between the radial gear 73 and the drive gear 14 to achieve uniform rotation of the follower ring 10 and the rotation center of the inner ring 71 of the slewing bearing 7, thereby achieving high-torque uniform rotation of the turntable 15. On the other hand, the outer ring 72 of the slewing bearing 7 provides space for the fixed installation of the follower ring 10.

[0028] like Figure 2 and 3 As shown, a support ring 9 is fixedly mounted on the outside of the slewing bearing 7 and fixed to the upper surface of the support truncated table 3. A fixed body 13 passes through the rear portion of the support ring 9 and is fixed to the support ring 9. The arrangement of the support ring 9 not only provides stable support for the fixed installation of the fixed body 13, but also provides a rotation axis for the rotation of the worm 12, thereby enabling the drive gear 14 to rotate at a high torque and at a uniform speed under the high torque rotation of the hydraulic motor 11.

[0029] like Figure 2 and 3 As shown, the outer end of the worm 12 is fixedly connected to the power output shaft of the hydraulic motor 11, and the worm 12 extends through the center of the fixed body 13 to the interior of the support ring 9. The drive gear 14 is fixedly arranged at the inner end of the worm 12, and the drive gear 14 is radially engaged with the radial gear 73 of the slewing bearing 7 for transmission; the rotating table 15 is fixedly arranged on the upper part of the follower ring 10.

[0030] Through the arrangement of the hydraulic motor 11, worm 12, fixed body 13, drive gear 14, and rotary table 15, the hydraulic motor 11 generates a high-torque rotational power. The hydraulic motor 11 drives the worm 12 and drive gear 14 to generate a uniform high-torque rotational force. At the same time, under the meshing transmission action of the drive gear 14 and the slewing bearing 7, the follower ring 10 and the rotary table 15 generate a high-torque rotational power, thereby causing the steel shell casting of the immersion pipe 16 to rotate itself.

[0031] like Figure 1-3As shown, the operating process of this worm-type rotary vibration platform is as follows: when the outer casting layer or inner wall casting layer of the steel shell of the immersion pipe 16 is required, the steel shell of the immersion pipe 16 is first placed at the upper center position of the rotating platform 15, and the supporting formwork is fixed. Then, the mixing port of the mixer is aligned with the outer or inner wall of the steel shell of the immersion pipe 16, and the mixer pours the mixed casting material between the steel shell and the supporting formwork. At the same time, the operator activates the vibration motor 5 and the hydraulic motor 11 through the control switch. The hydraulic rotation of the hydraulic motor 11 drives the worm 12 to rotate, and the rotation of the worm 12 drives the rotation of the driving gear 14. The meshing transmission between the driving gear 14 and the radial gear 73 of the slewing bearing 7 causes the outer ring 72 of the slewing bearing 7 to rotate about the fixed shaft 8 and the inner ring 71 as the rotation center, thereby achieving uniform rotation of the follower ring 10. Driven by the rotation of the follower ring 10, the rotating platform 15 rotates at a uniform speed. At the same time, the vibration of the vibration motor 5 is combined to finally achieve the vibration rotation of the steel shell of the immersion pipe 16. The vibration and rotation of the steel shell of the immersion pipe 16 cooperates with the continuous distribution of the mixer to achieve the uniform distribution of the castable. At the same time, the vibration of the immersion pipe 16 can make the internal particles of the castable cross-arranged, increase the molding density of the castable, and at the same time discharge the air in the castable, improve the internal molding structure of the castable, and improve the molding quality of the external casting layer or the inner wall casting layer of the steel shell of the immersion pipe 16.

[0032] Various modifications to the above-described embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not limited to the embodiments shown herein, but is to be construed in the widest manner consistent with the principles and novel features disclosed herein.

Claims

1. A worm-type rotary vibration platform, comprising a support (1), a cylinder (2) and a supporting truncated platform (3); the support (1) is fixedly arranged at the bottom of the cylinder (2), and four supports (1) are symmetrically arranged at the bottom of the cylinder (2) in a front-to-back and left-right manner; the cylinder (2) is a hollow cylindrical shape, and the supporting truncated platform (3) is fixedly arranged at the upper center position of the cylinder (2); characterized in that: The retaining ring (4) is fixedly arranged on the upper edge of the supporting truncated cone (3), and the retaining ring (4) is ring-shaped; the vibration motor (5) is fixedly arranged at the bottom center of the cylinder (2); the convex seat (6) is fixedly arranged on the upper circle center of the supporting truncated cone (3), and the upper center of the convex seat (6) is provided with a circular groove; the fixed shaft (8) is fixedly arranged in the upper circular groove of the convex seat (6), and the slewing bearing (7) is fixedly arranged on the fixed shaft (8); the slewing bearing (7) includes an inner ring (71) and an outer ring (72), and the radial gear (73) is fixedly arranged on the circumferential surface of the outer ring (72); the supporting ring (9) is fixedly arranged on the outer side of the slewing bearing (7), and the supporting ring (9) is fixed to the upper surface of the supporting truncated cone (3); the following ring (10) is fixedly arranged on the outer ring (72) of the slewing bearing (7), and the following ring (10) is fixedly arranged on the outer ring (72) of the slewing bearing (7). The follower ring (10) is in a ring shape; the hydraulic motor (11) is fixedly arranged on the outside of the support ring (9), the hydraulic motor (11) is fixed to the upper part of the support truncated plate (3), the fixed body (13) passes through the rear body of the support ring (9) and is fixed to the support ring (9), the outer end of the worm (12) is fixedly connected to the power output shaft of the hydraulic motor (11), the worm (12) passes through the center of the fixed body (13) and extends to the inside of the support ring (9), the driving gear (14) is fixedly arranged on the inner side end of the worm (12), and the driving gear (14) is radially meshed with the radial gear (73) of the slewing bearing (7) for transmission; the rotating table (15) is fixedly arranged on the upper part of the follower ring (10), and the immersion pipe (16) is placed on the upper center of the rotating table (15) through a crane or a lifting mechanism.

2. The worm-type rotary vibration platform according to claim 1, characterized in that: The height of the support (1) is greater than the height of the vibration motor (5); the cylinder (2), the supporting truncated cone (3) and the retaining ring (4) are concentric.

3. The worm-type rotary vibration platform according to claim 1, characterized in that: The vibration motor (5) is fixedly connected to the control switch and the power supply via connecting wires; the vibration motor (5) is suspended at the bottom of the cylinder (2).

4. The worm-type rotary vibration platform according to claim 1, characterized in that: The inner ring (71) of the slewing bearing (7) is fixedly mounted on the upper portion of the fixed shaft (8), and a rotation gap is reserved between the bottom of the slewing bearing (7) and the upper portion of the convex seat (6).

5. The worm-type rotary vibration platform according to claim 1, characterized in that: The height of the radial gear (73) is equal to the height of the driving gear (14), and the radial gear (73) and the driving gear (14) are tangentially meshed for transmission.

6. The worm-type rotary vibration platform according to claim 1, characterized in that: The height of the follower ring (10) is greater than the height of the support ring (9), and the follower ring (10) and the support ring (9) are concentrically arranged inside and outside.

7. The worm-type rotary vibration platform according to claim 1, characterized in that: The bus bar of the fixed body (13) is provided with a through hole in the axial direction, and the worm (12) is installed in the axial through hole of the fixed body (13), and the worm (12) can move freely in the through hole of the fixed body (13).

8. The worm-type rotary vibration platform according to claim 1, characterized in that: The rotating platform (15) and the follower ring (10) are concentric, and a rotation gap is reserved between the bottom of the rotating platform (15) and the upper part of the support ring (9).

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