A mounting structure for a three-ring reducer for a continuous casting machine

By combining the ground insertion mechanism, the fixed external drive mechanism, and the position locking mechanism, the problem of inconvenient installation caused by the large weight of the three-ring reducer is solved, achieving a simple, efficient, and stable installation effect, and improving the operational stability and equipment life of the continuous casting machine.

CN224453621UActive Publication Date: 2026-07-03TIANJIN SHENGLITONG MASCH EQUIP MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN SHENGLITONG MASCH EQUIP MFG CO LTD
Filing Date
2025-09-28
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The existing three-ring reducers used in continuous casting machines are heavy, making ground installation inconvenient, affecting equipment debugging, maintenance and replacement, and the installation process is cumbersome and unstable.

Method used

By employing a ground insertion mechanism, a fixed external drive mechanism, and a position locking mechanism, and through the combination of ground insertion rods, downward pressure rods, cross braces, and external braces, combined with the automated control of the drive motor and threaded plate, the reducer can be stably installed and precisely locked in position.

Benefits of technology

This enables simple, efficient, and stable installation of the speed reducer, reduces labor intensity and time consumption, and improves the operational stability and lifespan of the equipment.

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Abstract

This utility model discloses an installation structure for a three-ring reducer used in a continuous casting machine, including a three-ring reducer body, a ground insertion mechanism, a fixed external drive mechanism, and a position locking mechanism. The ground insertion mechanism includes a mounting base and a mounting sleeve. The fixed external drive mechanism includes a drive motor and an outer fixing plate. The position locking mechanism includes a longitudinal shift ring and a locking frame. The lowering rod drives the horizontal support rod to push the outer support rod outward, realizing automatic anchoring support in the ground, providing strong pull-out resistance and stability. The return spring and the wall-adhering spring provide elastic buffer protection, reduce impact load, and facilitate disassembly and movement. The drive motor realizes automated control of the ground insertion process through an active gear and a toothed ring transmission system, which is simple and efficient to operate. The outer rotation frame, together with the threaded plate, accurately converts the rotational motion into longitudinal linear motion, realizing precise control of the ground insertion depth and diffusion degree.
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Description

Technical Field

[0001] This utility model relates to the field of speed reducer installation technology, and more specifically, it relates to a three-ring speed reducer installation structure for continuous casting machines. Background Technology

[0002] In existing technologies, the installation structure of a three-ring reducer for continuous casting machines often faces the problem of inconvenient ground installation due to the large weight of the reducer. This issue poses significant challenges to equipment commissioning, maintenance, and replacement during actual production and installation, affecting the efficiency and stability of the entire continuous casting machine system.

[0003] Firstly, as a high-precision, high-efficiency production equipment, the three-ring reducer plays a crucial role in continuous casting machines. The reducer lowers the motor's speed through deceleration and transmits this speed to various working parts via the transmission system, ensuring stable equipment operation. However, the three-ring reducer itself is quite heavy, and its size and weight often exceed the load-bearing capacity of conventional equipment. Installing the reducer requires large lifting equipment and precise alignment during the installation process, which not only increases labor intensity but also consumes a significant amount of time and manpower.

[0004] Secondly, due to the large weight of the speed reducer, traditional ground-mounting methods are often insufficient to meet the various requirements of practical applications. During installation, operators need to use numerous auxiliary support tools or specialized equipment to fix the speed reducer in the designated position. This fixing method is not only cumbersome during operation, but also prone to unstable operation due to insecure installation, which can even affect the working efficiency and lifespan of the speed reducer. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the problems existing in the prior art, this utility model provides an installation structure for a three-ring reducer for a continuous casting machine, thereby solving the technical problems mentioned in the background art, such as the large weight of the reducer and the inconvenience of its ground installation.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a three-ring reducer installation structure for a continuous casting machine, comprising a three-ring reducer body, a ground insertion mechanism, a fixed external drive mechanism, and a position locking mechanism. The ground insertion mechanism includes a mounting base and a mounting sleeve. The mounting base has mounting grooves around its perimeter, and the mounting sleeve is installed in the mounting grooves. A ground insertion rod is installed at one end of the mounting sleeve. A downward pressure rod is slidably installed inside the mounting sleeve. A horizontal support rod is slidably installed on the side wall of the ground insertion rod, and an external support rod is rotatably installed on the outer wall of the ground insertion rod. The side wall of the downward pressure rod can press against the horizontal support rod, causing the external support rod to spread out in the ground. The fixed external drive mechanism includes a drive motor and an outer fixed plate. The outer fixed plate is fixedly installed on the outer wall of the mounting sleeve, and the drive motor is installed on the outer fixed plate. A toothed ring and an external rotating frame are rotatably installed on the outer wall of the mounting sleeve. An active tooth is installed at the output end of the drive motor. The active tooth meshes with the rotating tooth, and the external rotating frame rotates in conjunction with the rotating tooth.

[0009] The present invention is further configured such that the position locking mechanism includes a longitudinal moving ring and a locking frame. The longitudinal moving ring is longitudinally slidably installed on the outer wall of the mounting sleeve. A push-pull groove is provided on the inner wall of the longitudinal moving frame. The locking frame is laterally slidably installed on the side wall of the mounting sleeve. A locking groove is provided on the side wall of the pressure rod. The longitudinally moving push-pull groove pushes or pulls the locking frame to extend into or away from the locking groove.

[0010] The present invention is further configured such that bolts are installed around the top end of the mounting base, and a base is installed at the bottom end of the three-ring reducer body. The bolts are installed around the top end of the mounting base and cooperate with the base to connect and fix the equipment through external nuts.

[0011] The present invention is further configured such that the base can be fitted with a bolt rod, and the external nut is connected to the bolt rod to fix the base on the mounting seat. The base is installed at the bottom of the three-ring reducer body, and the bolt rod is fitted into it and connected to the mounting seat to achieve reliable fixation of the equipment.

[0012] The present invention is further configured such that an installation plate is installed on the side wall of the installation sleeve, and the installation plate is installed in the installation groove. The installation plate is installed on the side wall of the installation sleeve and fixed in the installation groove to ensure a reliable connection between the installation sleeve and the installation base.

[0013] The present invention is further configured such that a pull-back spring is installed between the outer walls of the outer support rod and the ground insertion rod, and a wall-adhesive spring is installed between one end of the cross support rod and the inner wall of the ground insertion rod. The pull-back spring is installed between the outer walls of the outer support rod and the ground insertion rod to provide a pull-back force to retract the outer support rod, which facilitates disassembly and movement.

[0014] The present invention is further configured such that a threaded plate is installed at the bottom end of the outer rotating frame, and the threaded plate is threadedly driven to connect with the longitudinal moving ring. The threaded plate is installed at the bottom end of the outer rotating frame and is threadedly engaged with the longitudinal moving ring to convert the rotational motion into longitudinal linear motion.

[0015] The present invention is further configured such that the downward pressure rod can extend into the mounting sleeve and into the grounding rod, so that multiple sets of cross braces and outer braces spread outward from the wall of the grounding rod. The mounting sleeve is installed in the mounting groove, supporting the grounding rod and the downward pressure rod, and providing a mounting foundation for the grounding mechanism.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a mounting structure for a three-ring reducer for a continuous casting machine, which has the following advantages:

[0018] This utility model is equipped with a ground insertion mechanism. The downward pressure rod drives the horizontal support rod to push the outer support rod outward, realizing automatic anchoring support in the ground and providing strong pull-out resistance and stability. The pull-back spring and the wall-mounted spring provide elastic buffer protection, reduce impact load and facilitate disassembly and movement. The mounting base and mounting sleeve provide a stable installation foundation platform for the entire system.

[0019] This utility model is equipped with a fixed external drive mechanism. The drive motor realizes the automated control of the insertion process through the active gear and toothed ring transmission system. The operation is simple and efficient. The external rotating frame, together with the threaded plate, accurately converts the rotational motion into longitudinal linear motion, realizing precise control of the insertion depth and diffusion degree. The external fixed plate provides stable support to ensure the long-term reliable operation of the transmission system.

[0020] This utility model is equipped with a position locking mechanism. The longitudinal moving ring drives the locking frame to extend into or away from the lower pressure rod locking groove through the push-pull groove, so as to realize reliable mechanical locking and flexible release in the insertion state, ensure that the insertion position is accurately maintained, prevent accidental loosening, and provide a stable installation foundation for the three-ring reducer of the continuous casting machine. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the device in the unused state of this utility model;

[0022] Figure 2 This is a schematic diagram of the ground insertion mechanism in this utility model. Figure 1 ;

[0023] Figure 3 This is a schematic diagram of the ground insertion mechanism in this utility model. Figure 2 ;

[0024] Figure 4 This is a structural diagram of the fixed external drive mechanism and the position locking mechanism in this utility model;

[0025] Figure 5 This is a schematic diagram of the internal structure of the fixed external drive mechanism and the position locking mechanism in this utility model.

[0026] In the diagram: 1. Three-ring reducer body; 2. Mounting base; 3. Mounting sleeve; 4. Mounting groove; 5. Grounding rod; 6. Lower pressure rod; 7. Horizontal support rod; 8. External support rod; 9. Drive motor; 10. External fixing plate; 11. Toothed ring; 12. External rotating frame; 13. Drive gear; 14. Longitudinal transfer ring; 15. Snap-fit ​​frame; 16. Push-pull groove; 17. Snap-fit ​​groove; 18. Bolt rod; 19. Base; 20. Mounting plate; 21. Return spring; 22. Wall-mounted spring; 23. Threaded plate. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figures 1-5 A mounting structure for a three-ring reducer used in a continuous casting machine includes a three-ring reducer body 1, a grounding mechanism, a fixed external drive mechanism, and a position locking mechanism. The grounding mechanism includes a mounting base 2 and a mounting sleeve 3. Mounting grooves 4 are formed around the mounting base 2, and the mounting sleeve 3 is installed within the mounting grooves 4. A grounding rod 5 is mounted at one end of the mounting sleeve 3. A downward pressure rod 6 is slidably mounted inside the mounting sleeve 3. A cross brace 7 is slidably mounted on the side wall of the grounding rod 5, and a rotatable support rod 7 is mounted on the outer wall of the grounding rod 5. The side walls of the outer support rod 8 and the lower pressure rod 6 can press against the horizontal support rod 7, causing the outer support rod 8 to spread out in the ground. The fixed external drive mechanism includes a drive motor 9 and an outer fixed plate 10. The outer fixed plate 10 is fixedly installed on the outer wall of the mounting sleeve 3. The drive motor 9 is installed on the outer fixed plate 10. A toothed ring 11 and an outer rotating frame 12 are rotatably installed on the outer wall of the mounting sleeve 3. An active tooth 13 is installed at the output end of the drive motor 9. The active tooth 13 meshes with the rotating tooth, and the outer rotating frame 12 rotates in conjunction with the rotating tooth.

[0031] In this embodiment, mounting sleeves 3 are installed in the mounting grooves 4 around the mounting base 2. The grounding rod 5 is installed at one end of the mounting sleeve 3. The pressing rod 6 slides into the mounting sleeve 3 and extends into the grounding rod 5. The side wall presses against the horizontal support rod 7. After being pressed, the horizontal support rod 7 pushes the outer support rod 8 on the side wall of the grounding rod 5 to rotate and spread outward. The return spring 21 connects the outer support rod 8 and the outer wall of the grounding rod 5. The wall-adhesive spring 22 connects the horizontal support rod 7 and the inner wall of the grounding rod 5. Multiple sets of horizontal support rods 7 and outer support rods 8 spread outward from the wall of the grounding rod 5, forming an anchoring support in the ground, realizing the equipment's... The drive motor 9 is installed securely in the ground and mounted on the outer fixed plate 10. The outer fixed plate 10 is fixed to the outer wall of the mounting sleeve 3. The drive gear 13 at the output end of the drive motor 9 meshes with the toothed ring 11 on the mounting sleeve 3 for transmission. The toothed ring 11 rotates in conjunction with the outer rotating frame 12. The threaded plate 23 at the bottom of the outer rotating frame 12 is threadedly connected to the longitudinal moving ring 14. After the drive motor 9 starts, the drive gear 13 drives the toothed ring 11 to rotate, and the outer rotating frame 12 rotates synchronously. The threaded plate 23 pushes the longitudinal moving ring 14 to move longitudinally, providing driving force for the position locking mechanism.

[0032] The position locking mechanism includes a longitudinal moving ring 14 and a locking bracket 15. The longitudinal moving ring 14 is longitudinally slidably installed on the outer wall of the mounting sleeve 3. A push-pull groove 16 is provided on the inner wall of the longitudinal moving bracket. The locking bracket 15 is laterally slidably installed on the side wall of the mounting sleeve 3. A locking groove 17 is provided on the side wall of the pressure rod 6. The longitudinally moving push-pull groove 16 pushes or pulls the locking bracket 15 into or away from the locking groove 17.

[0033] In this embodiment, the longitudinal moving ring 14 slides longitudinally under the push of the threaded plate 23 of the outer rotating frame 12. The push-pull groove 16 on the inner wall pushes or pulls the snap-fit ​​bracket 15 on the side wall of the mounting sleeve 3 to slide laterally. The snap-fit ​​bracket 15 can extend into or away from the snap-fit ​​groove 17 on the side wall of the lower pressure rod 6 to achieve snap-fit ​​or disengagement with the lower pressure rod 6. When the longitudinal moving ring 14 moves downward, the push-pull groove 16 pulls the snap-fit ​​bracket 15 away from the snap-fit ​​groove 17 to release the lower pressure rod 6. When it moves upward, the push-pull groove 16 pushes the snap-fit ​​bracket 15 into the snap-fit ​​groove 17 to lock the position of the lower pressure rod 6 and control the grounding state.

[0034] Please see Figures 1-5As a supplementary embodiment of the installation structure of a three-ring reducer for a continuous casting machine, which includes a ground insertion mechanism, a fixed external drive mechanism, and a position locking mechanism: Bolts 18 are installed around the top of the mounting base 2. A base 19 is installed at the bottom of the three-ring reducer body 1. The base 19 can be fitted with bolts 18. An external nut is connected to the bolts 18 to fix the base 19 to the mounting base 2. An installation plate 20 is installed on the side wall of the mounting sleeve 3, and the installation plate 20 is installed in the mounting groove 4. A return spring 21 is installed between the outer support rod 8 and the outer wall of the ground insertion rod 5. A wall-adhesive spring 22 is installed between one end of the cross support rod 7 and the inner wall of the ground insertion rod 5. A threaded plate 23 is installed at the bottom of the outer rotating frame 12, and the threaded plate 23 is threadedly connected to the longitudinal moving ring 14. The downward pressure rod 6 can extend directionally into the mounting sleeve 3 and into the ground insertion rod 5, causing multiple sets of cross support rods 7 and outer support rods 8 to spread outwards from the wall of the ground insertion rod 5.

[0035] More specifically, the base 19 of the three-ring reducer body 1 is fitted into the top bolt 18 of the mounting seat 2, and the external nut is connected and fixed to complete the equipment foundation installation. The drive motor 9 starts, and the active gear 13 drives the toothed ring 11 and the external rotating frame 12 to rotate. The threaded plate 23 pushes the longitudinal moving ring 14 to move. The longitudinal moving ring 14 moves down, and the push-pull groove 16 pulls the snap-fit ​​bracket 15 away from the snap-fit ​​groove 17 of the lower pressure rod 6, releasing the lower pressure rod 6 to slide freely. Under the action of gravity, the lower pressure rod 6 slides into the mounting sleeve 3 and extends into the insertion rod 5. The side wall is pressed... The horizontal support rod 7 pushes the outer support rod 8 outward to form an anchor support in the ground. The longitudinal movement ring 14 moves upward, and the push-pull groove 16 pushes the snap-fit ​​bracket 15 into the snap-fit ​​groove 17 of the lower pressure rod 6 to lock the ground insertion state. The return spring 21 and the wall-adhesive spring 22 provide elastic support to ensure the stable operation of the ground insertion mechanism. The three-ring reducer has a firm and reliable installation structure. When it needs to be moved, the drive motor 9 runs in reverse, the longitudinal movement ring 14 moves downward to release the snap-fit, and the outer support rod 8 retracts under the action of the return spring 21, which facilitates the disassembly and movement of the equipment.

[0036] In summary, during the use or operation of the overall equipment: when the ground insertion mechanism is required, the mounting sleeve 3 is installed in the mounting groove 4 around the mounting base 2, the ground insertion rod 5 is installed at one end of the mounting sleeve 3, the pressure rod 6 slides into the mounting sleeve 3 and extends into the ground insertion rod 5, the side wall presses against the horizontal support rod 7, and after the horizontal support rod 7 is pressed, it pushes the outer support rod 8 on the side wall of the ground insertion rod 5 to rotate and spread outward. The return spring 21 connects the outer support rod 8 and the outer wall of the ground insertion rod 5, and the wall-adhesive spring 22 connects the horizontal support rod 7 and the inner wall of the ground insertion rod 5. Multiple sets of horizontal support rods 7 and outer support rods 8 spread outward from the wall of the ground insertion rod 5, forming an anchor support in the ground, realizing the stable ground insertion installation of the equipment.

[0037] When the external drive mechanism needs to be fixed during operation, the drive motor 9 is mounted on the outer fixed plate 10, which is fixed to the outer wall of the mounting sleeve 3. The drive gear 13 at the output end of the drive motor 9 meshes with the toothed ring 11 on the mounting sleeve 3 for transmission. The toothed ring 11 rotates in conjunction with the outer rotating frame 12. The threaded plate 23 at the bottom of the outer rotating frame 12 is threadedly connected to the longitudinal moving ring 14. After the drive motor 9 starts, the drive gear 13 drives the toothed ring 11 to rotate, and the outer rotating frame 12 rotates synchronously. The threaded plate 23 pushes the longitudinal moving ring 14 to move longitudinally, providing driving force for the position locking mechanism.

[0038] When the position locking mechanism is in operation, the longitudinal moving ring 14 slides longitudinally under the push of the threaded plate 23 of the outer rotating frame 12. The push-pull groove 16 on the inner wall pushes or pulls the locking bracket 15 on the side wall of the mounting sleeve 3 to slide laterally. The locking bracket 15 can extend into or away from the locking groove 17 on the side wall of the lower pressure rod 6 to achieve locking or disengagement with the lower pressure rod 6. When the longitudinal moving ring 14 moves downward, the push-pull groove 16 pulls the locking bracket 15 away from the locking groove 17 to release the lower pressure rod 6. When it moves upward, the push-pull groove 16 pushes the locking bracket 15 into the locking groove 17 to lock the position of the lower pressure rod 6 and control the grounding state.

[0039] The three-ring reducer body 1, base 19, is fitted into the mounting base 2, top bolt 18, and external nut is used for connection and fixation, completing the equipment foundation installation. Drive motor 9 starts, drive gear 13 drives toothed ring 11 and external rotating frame 12 to rotate, threaded plate 23 pushes longitudinal moving ring 14 to move, longitudinal moving ring 14 moves down, push-pull groove 16 pulls snap-fit ​​bracket 15 away from the snap-fit ​​groove 17 of lower pressure rod 6, releasing lower pressure rod 6 to slide freely. Under the action of gravity, lower pressure rod 6 slides into mounting sleeve 3 and extends into insertion rod 5, side wall presses against horizontal The strut 7 pushes the outer strut 8 outward to form an anchor support in the ground. The longitudinal movement ring 14 moves upward, and the push-pull groove 16 pushes the snap-fit ​​bracket 15 into the snap-fit ​​groove 17 of the lower pressure rod 6 to lock the ground insertion state. The return spring 21 and the wall-mounted spring 22 provide elastic support to ensure the stable operation of the ground insertion mechanism. The three-ring reducer has a firm and reliable installation structure. When it needs to be moved, the drive motor 9 runs in reverse, the longitudinal movement ring 14 moves downward to release the snap-fit, and the outer strut 8 retracts under the action of the return spring 21, which facilitates the disassembly and movement of the equipment.

[0040] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

[0041] In all the solutions mentioned above, those involving the operation of electrical components, unless otherwise explicitly described, are controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies, and their specific circuit structures will not be elaborated here. In all the solutions mentioned above, those involving motors can be used with a reducer if necessary. The connection structure and working principle between the motor and the reducer are existing, well-known technologies, and will not be elaborated here.

Claims

1. A mounting structure for a three-ring reducer used in a continuous casting machine, comprising a three-ring reducer body (1), a ground insertion mechanism, a fixed external drive mechanism, and a position locking mechanism, characterized in that: The grounding mechanism includes a mounting base (2) and a mounting sleeve (3). The mounting base (2) has mounting grooves (4) around its perimeter, and the mounting sleeve (3) is installed within the mounting grooves (4). A grounding rod (5) is installed at one end of the mounting sleeve (3). A downward pressure rod (6) is slidably installed inside the mounting sleeve (3). A horizontal support rod (7) is slidably installed on the side wall of the grounding rod (5), and an outer support rod (8) is rotatably installed on the outer wall of the grounding rod (5). The side wall of the downward pressure rod (6) can press against the horizontal support rod (7), causing... The outer support rod (8) spreads out in the ground. The fixed external drive mechanism includes a drive motor (9) and an outer fixed plate (10). The outer fixed plate (10) is fixedly installed on the outer wall of the mounting sleeve (3). The drive motor (9) is installed on the outer fixed plate (10). A toothed ring (11) and an outer rotating frame (12) are rotatably installed on the outer wall of the mounting sleeve (3). An active tooth (13) is installed at the output end of the drive motor (9). The active tooth (13) meshes with the rotating tooth, and the outer rotating frame (12) rotates in conjunction with the rotating tooth.

2. A three-ring speed reducer mounting structure for a continuous casting machine according to claim 1, characterized in that: The position locking mechanism includes a longitudinal moving ring (14) and a locking frame (15). The longitudinal moving ring (14) is longitudinally slidably installed on the outer wall of the mounting sleeve (3). A push-pull groove (16) is provided on the inner wall of the longitudinal moving frame. The locking frame (15) is laterally slidably installed on the side wall of the mounting sleeve (3). A locking groove (17) is provided on the side wall of the pressure rod (6). The longitudinally moving push-pull groove (16) pushes or pulls the locking frame (15) to extend into or away from the locking groove (17).

3. The three-ring speed reducer mounting structure for a continuous casting machine according to claim 1, characterized by: The mounting base (2) is provided with bolts (18) around the top end, and the three-ring reducer body (1) is provided with a base (19) at the bottom end.

4. A three-ring speed reducer mounting structure for a continuous casting machine according to claim 3, characterized in that: The base (19) can be fitted with the bolt (18), and the external nut is connected to the bolt (18) to fix the base (19) on the mounting base (2).

5. The three-ring speed reducer mounting structure for a continuous casting machine according to claim 1, characterized by: An installation plate (20) is installed on the side wall of the installation sleeve (3), and the installation plate (20) is installed in the installation groove (4).

6. The three-ring speed reducer mounting structure for a continuous casting machine according to claim 1, characterized by: A pull-back spring (21) is installed between the outer wall of the outer support rod (8) and the ground insertion rod (5), and a wall-mounted spring (22) is installed between one end of the cross support rod (7) and the inner wall of the ground insertion rod (5).

7. The mounting structure of a three-ring reducer for a continuous casting machine according to claim 2, characterized in that: The bottom end of the external rotating frame (12) is provided with a threaded plate (23), and the threaded plate (23) is threadedly driven to connect with the longitudinal moving ring (14).

8. The three-ring speed reducer mounting structure for a continuous casting machine according to claim 1, characterized by: The downward pressure rod (6) can be oriented to extend into the mounting sleeve (3) and into the grounding rod (5), so that multiple sets of cross braces (7) and outer braces (8) spread outward from the wall of the grounding rod (5).