Low-frequency anti-seismic rotary heavy-load speed reducer for converter

Abstract

The utility model discloses a converter low -frequency anti -seismic rotary heavy load speed reducer, including converter main part, the outer wall of converter main part is provided with the outer support wall, and the inner wall in the outer support wall is installed with the internal gear, the inner wall of this internal gear is engaged and is provided with a gear and no. 2 gear, the back of a gear is provided with the connecting rod, and the outer wall medium end of connecting rod is provided with the connecting gear, and the outer wall of this connecting gear is installed with the gear belt. The utility model, the main part of speed reducer and drive unit are all installed on the special anti -seismic base, and the base has good vibration isolation, and the function of reducing the shock, can effectively absorb and isolate the low -frequency high -amplitude vibration energy from the converter main part operation and smelting environment conduction, avoid vibration transmission to drive motor and its transmission system inside, protected the gear engagement precision, bearing life and the operation stability of motor to enhance the long -term durability and operation reliability of entire speed reduction system under the harsh working condition on the source.

Description

Technical Field

[0001] This utility model relates to the technical field of converter low-frequency anti-vibration rotary heavy-duty reducer, and in particular to a converter low-frequency anti-vibration rotary heavy-duty reducer. Background Technology

[0002] In the steel smelting industry, the converter, as one of the core pieces of equipment, places extremely stringent requirements on the drive reducer due to its low-frequency, heavy-load, and intermittent rotary operation. Existing reduction mechanisms mostly employ a single power source driving a single-stage or serial gear system design. If the main drive unit (such as the motor or core gear pair) fails, the entire converter system will be forced to shut down, severely impacting production continuity and safety, and causing significant economic losses. Therefore, designing a redundant and reliable reduction mechanism that can effectively resist strong vibrations and shocks under extreme low-frequency, heavy-load conditions, and maintain the converter's basic operational capabilities even in the event of a single-point failure of the main drive unit, has become a key technical challenge to be solved in this field.

[0003] To address these issues, we propose a low-frequency, vibration-resistant, heavy-duty rotary reducer for converters. Utility Model Content

[0004] The purpose of this invention is to provide a low-frequency anti-vibration rotary heavy-duty reducer for converters. When using this reducer, the main components and drive unit are all mounted on a dedicated anti-vibration base. This base has excellent vibration isolation and shock reduction capabilities, effectively absorbing and isolating low-frequency, high-amplitude vibration energy transmitted from the converter's operation and the smelting environment. This prevents vibration from being transmitted to the drive motor and its transmission system, protecting gear meshing accuracy, bearing life, and motor operational stability. This fundamentally enhances the long-term durability and operational reliability of the entire reduction system under harsh conditions. Simultaneously, the design of the limiting ring and mounting wall provides stable radial support for the connecting rod, further suppressing swaying and off-center loading during operation, improving transmission accuracy and anti-vibration performance, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A converter low-frequency anti-vibration rotary heavy-duty reducer includes a converter body. An outer support wall is provided on the outer wall of the converter body, and an internal gear is installed in the inner wall of the outer support wall. A first gear and a second gear are meshed in the inner wall of the internal gear. A connecting rod is provided on the back of the first gear, and a connecting gear is provided at the middle end of the outer wall of the connecting rod. A gear belt is installed on the outer wall of the connecting gear, and a limit ring is also provided on the outer wall of the connecting rod. A drive rod is inserted into the inner wall of the connecting rod, and a first motor is provided at one end of the drive rod.

[0007] In a further embodiment, a mounting wall is provided at the front end of the first motor, an anti-vibration base is provided at the lower end of the first motor, and a second motor is provided at one end of the anti-vibration base.

[0008] In a further embodiment, the front end of the second motor is mounted and connected to the inner wall of the connecting rod of the second gear via a drive rod.

[0009] In a further embodiment, the gear belt is made of a high-temperature resistant material and its inner wall is connected to the connecting gear, while the other side of the gear belt is meshed with the connecting gear located at the second gear.

[0010] In a further embodiment, the limiting ring is movably embedded in the inner wall of the mounting wall, and the connecting rod is rotatably mounted in the inner wall of the mounting wall.

[0011] In a further embodiment, the internal gear is movably embedded in the inner wall of the front end of the mounting wall, and the outer support wall is rotated and fitted against the front end of the mounting wall by the internal gear.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention, when using a converter low-frequency anti-vibration rotary heavy-duty reducer, achieves redundant power source configuration by symmetrically meshing two gear pairs (gear number one and gear number two) with the internal gear, and driving them separately by independent motors (motor number one and motor number two) via drive rods. Under normal operating conditions, the two motors can work together to evenly distribute the load torque, reduce single-point stress, and significantly improve the system's load-bearing capacity and operational stability. When either motor fails, the remaining motor can drive both gear pairs simultaneously through the linkage of connecting gears and gear belts, continuing to drive the internal gear and converter body at a slow speed. This greatly improves the equipment's fault tolerance and operational continuity, effectively avoiding unplanned downtime caused by the failure of a single power unit, and ensuring production safety. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure of a low-frequency anti-vibration rotary heavy-duty reducer for converters;

[0015] Figure 2 A schematic diagram of the gear belt structure of a low-frequency vibration-resistant heavy-duty rotary reducer for a converter;

[0016] Figure 3 A schematic diagram of the internal gear structure of a low-frequency vibration-resistant heavy-duty rotary reducer for a converter.

[0017] Figure 4 This is a schematic diagram of the drive rod structure of a low-frequency anti-vibration heavy-duty rotary reducer for converters.

[0018] In the diagram: 1. Converter body; 2. Outer support wall; 3. Mounting wall; 4. Motor No. 1; 5. Anti-vibration base; 6. Motor No. 2; 7. Gear No. 1; 8. Gear No. 2; 9. Connecting rod; 10. Connecting gear; 11. Gear belt; 12. Limiting ring; 13. Drive rod; 14. Internal gear. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4A low-frequency anti-vibration rotary heavy-duty reducer for converters includes a converter body 1. An outer support wall 2 is fixedly mounted on the outer wall of the converter body 1 for mounting and supporting subsequent transmission components. A large-diameter internal gear 14 is fixedly mounted on the inner wall of the outer support wall 2. This internal gear 14 is a key output component of the reducer. Two sets of drive units are arranged in parallel within a cavity at the front end of the mounting wall 3. The first set is powered by a first motor 4, whose output shaft is rigidly connected to one end of a first drive rod 13 via a coupling. The drive rod 13 extends forward, passing through a hole in the front cavity of the mounting wall 3 (this hole provides necessary shaft end support), and its front end is inserted into the inner end of a first connecting rod 9. A first gear 7, which directly meshes with the internal gear 14, is fixedly fitted on the outer wall at the front end of the first connecting rod 9. The second set of drive units has a similar structure, powered by a second motor 6, driving a second drive rod 13, which in turn drives a second connecting rod 9 and a second gear 8 fixed at its front end. The second gear 8 also meshes with the aforementioned internal gear 14. A smaller diameter connecting gear 10 is also fixedly fitted onto the outer wall of the middle section of each connecting rod 9. The two connecting gears 10 are connected by a closed annular gear belt 11.

[0023] Dual-motor cooperative operation (normal mode): Motor 4 and Motor 6 start and run simultaneously. The power of Motor 4 is transmitted to the first connecting rod 9 via the first drive rod 13, driving the first gear 7 to rotate. Simultaneously, the rotation of the first connecting rod 9 drives the connecting gear 10 on one side to rotate, and the power is transmitted to the connecting gear 10 on the second connecting rod 9 via the gear belt 11, thus synchronously driving the second gear 8 to rotate. The power output from the two motors actually acts on the first gear 7 and the second gear 8 together through the connecting rod 9 (the motor drives the gear on its own connecting rod 9 directly, and the additional torque is transmitted through the gear belt 11), causing them to mesh synchronously and in the same direction to drive the internal gear 14 to rotate. The rotation of the internal gear 14 drives the outer support wall 2 fixed to its outer side to rotate, ultimately driving the converter body 1 to perform a smooth, high-torque, low-speed rotary motion. The dual motors cooperate to share the load, reduce the force on a single point, and make the operation more stable.

[0024] Single-motor emergency working mode (redundant mode): When one of the motors, 4 or 6, fails to operate (e.g., motor 4 fails), the other motor (e.g., motor 6) can continue to operate normally. Its power is transmitted to the second connecting rod 9 through the second drive rod 13, directly driving the second gear 8 to rotate. At the same time, the connecting gear 10 on the second connecting rod 9 drives the connecting gear 10 on the first connecting rod 9 to rotate through the gear belt 11, thereby forcibly driving the first connecting rod 9 and the first gear 7, which is fixed to it but has lost motor power, to rotate synchronously (although there is no power input, its bearings are allowed to rotate passively). At this time, the second gear 8 acts as the driving wheel under the direct drive of the second motor 6, while the first gear 7 acts as the driven wheel under the forced linkage of the gear belt 11. The two gears still maintain synchronization and mesh together to drive the internal gear 14 to rotate, so that the converter body 1 can still maintain rotation at a low speed and avoid complete production interruption.

[0025] The bodies (typically including their outer casing base) of both motor 4 and motor 6 are rigidly mounted on the same seismic-resistant base 5. This seismic-resistant base 5 serves as the mounting foundation for the entire drive system, directly fixed to a solid foundation or equipment base. The core function of the seismic-resistant base 5 lies in its integrated, highly efficient vibration isolation and shock reduction structure. This structure typically employs a high-damping composite elastomer, high-performance disc spring assembly, hydraulic damper, or a combination thereof.

[0026] The mounting wall 3 serves as a crucial load-bearing frame. Each connecting rod 9, at the portion passing through the mounting wall 3, has a limiting ring 12 (typically an annular boss or flange tightly fitted onto the connecting rod 9) fitted onto its outer wall. This limiting ring 12 is rotatably embedded in a bearing hole (or bushing) at a corresponding position on the mounting wall 3. This allows the connecting rod 9 to achieve precise radial positioning and support, enabling it to rotate only around its own axis. This effectively prevents radial runout and bending moment deformation of the connecting rod 9 under enormous torque, ensuring meshing accuracy and transmission smoothness with the internal gear 14, and reducing vibration. Simultaneously, the internal gear 14 itself is also movably embedded in an annular support structure (such as a bearing assembly) installed at the front end of the mounting wall 3 via the outer support wall 2, allowing it to rotate smoothly under the constraint of the mounting wall 3.

[0027] The working principle of this utility model is as follows: As shown in the figure, it includes a converter body 1, on the outer wall of which an outer support wall 2 is fixed for mounting and supporting subsequent transmission components. A large-diameter internal gear 14 is fixedly installed on the inner side of the outer support wall 2. This internal gear 14 is a key output component of the reducer. Two sets of drive units are arranged in parallel within the cavity at the front end of the mounting wall 3. The first set is powered by a first motor 4, whose output shaft is rigidly connected to one end of a first drive rod 13 via a coupling. This drive rod 13 extends forward, passing through a hole in the cavity at the front end of the mounting wall 3 (this hole provides necessary shaft end support), and its front end is inserted into the inner end of a first connecting rod 9. A first gear 7, which directly meshes with the internal gear 14, is fixedly fitted on the outer wall at the front end of the first connecting rod 9. The second set of drive units has a similar structure, powered by a second motor 6, driving the second drive rod 13, which in turn drives the second connecting rod 9 and the second gear 8 fixed at its front end. The second gear 8 also meshes with the aforementioned internal gear 14. A smaller diameter connecting gear 10 is also fixedly fitted onto the outer wall of the middle section of each connecting rod 9. The two connecting gears 10 are connected by a closed annular gear belt 11.

[0028] Dual-motor cooperative operation (normal mode): Motor 4 and Motor 6 start and run simultaneously. The power of Motor 4 is transmitted to the first connecting rod 9 via the first drive rod 13, driving the first gear 7 to rotate. Simultaneously, the rotation of the first connecting rod 9 drives the connecting gear 10 on one side to rotate, and the power is transmitted to the connecting gear 10 on the second connecting rod 9 via the gear belt 11, thus synchronously driving the second gear 8 to rotate. The power output from the two motors actually acts on the first gear 7 and the second gear 8 together through the connecting rod 9 (the motor drives the gear on its own connecting rod 9 directly, and the additional torque is transmitted through the gear belt 11), causing them to mesh synchronously and in the same direction to drive the internal gear 14 to rotate. The rotation of the internal gear 14 drives the outer support wall 2 fixed to its outer side to rotate, ultimately driving the converter body 1 to perform a smooth, high-torque, low-speed rotary motion. The dual motors cooperate to share the load, reduce the force on a single point, and make the operation more stable.

[0029] Single-motor emergency working mode (redundant mode): When one of the motors, 4 or 6, fails to operate (e.g., motor 4 fails), the other motor (e.g., motor 6) can continue to operate normally. Its power is transmitted to the second connecting rod 9 through the second drive rod 13, directly driving the second gear 8 to rotate. At the same time, the connecting gear 10 on the second connecting rod 9 drives the connecting gear 10 on the first connecting rod 9 to rotate through the gear belt 11, thereby forcibly driving the first connecting rod 9 and the first gear 7, which is fixed to it but has lost motor power, to rotate synchronously (although there is no power input, its bearings are allowed to rotate passively). At this time, the second gear 8 acts as the driving wheel under the direct drive of the second motor 6, while the first gear 7 acts as the driven wheel under the forced linkage of the gear belt 11. The two gears still maintain synchronization and mesh together to drive the internal gear 14 to rotate, so that the converter body 1 can still maintain rotation at a low speed and avoid complete production interruption.

[0030] The bodies (typically including their outer casing base) of both motor 4 and motor 6 are rigidly mounted on the same seismic-resistant base 5. This seismic-resistant base 5 serves as the mounting foundation for the entire drive system, directly fixed to a solid foundation or equipment base. The core function of the seismic-resistant base 5 lies in its integrated, highly efficient vibration isolation and shock reduction structure. This structure typically employs a high-damping composite elastomer, high-performance disc spring assembly, hydraulic damper, or a combination thereof.

[0031] The mounting wall 3 serves as a crucial load-bearing frame. Each connecting rod 9, at the portion passing through the mounting wall 3, has a limiting ring 12 (typically an annular boss or flange tightly fitted onto the connecting rod 9) fitted onto its outer wall. This limiting ring 12 is rotatably embedded in a bearing hole (or bushing) at a corresponding position on the mounting wall 3. This allows the connecting rod 9 to achieve precise radial positioning and support, enabling it to rotate only around its own axis. This effectively prevents radial runout and bending moment deformation of the connecting rod 9 under enormous torque, ensuring meshing accuracy and transmission smoothness with the internal gear 14, and reducing vibration. Simultaneously, the internal gear 14 itself is also movably embedded in an annular support structure (such as a bearing assembly) installed at the front end of the mounting wall 3 via the outer support wall 2, allowing it to rotate smoothly under the constraint of the mounting wall 3.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A converter low-frequency anti-vibration heavy-duty rotary reducer, characterized in that: The converter body (1) includes an outer support wall (2) on its outer wall. An internal gear (14) is installed in the inner wall of the outer support wall (2). A first gear (7) and a second gear (8) are meshed in the inner wall of the internal gear (14). A connecting rod (9) is provided on the back of the first gear (7). A connecting gear (10) is provided at the middle of the outer wall of the connecting rod (9). A gear belt (11) is installed on the outer wall of the connecting gear (10). A limit ring (12) is also provided on the outer wall of the connecting rod (9). A drive rod (13) is inserted into the inner wall of the connecting rod (9). A first motor (4) is provided at one end of the drive rod (13).

2. The converter low-frequency anti-vibration rotary heavy-duty reducer according to claim 1, characterized in that: The first motor (4) has a mounting wall (3) at its front end, and an anti-vibration base (5) is provided at the lower end of the first motor (4). A second motor (6) is also provided at one end of the anti-vibration base (5).

3. The converter low-frequency anti-vibration rotary heavy-duty reducer according to claim 2, characterized in that: The front end of the second motor (6) is connected to the inner wall of the connecting rod (9) of the second gear (8) via a drive rod (13).

4. The converter low-frequency anti-vibration heavy-duty rotary reducer according to claim 1, characterized in that: The gear belt (11) is made of high temperature resistant material and its inner wall is connected to the connecting gear (10). The other side of the gear belt (11) is meshed with the connecting gear (10) set at the second gear (8).

5. The converter low-frequency anti-vibration rotary heavy-duty reducer according to claim 1, characterized in that: The limiting ring (12) is movably embedded in the inner wall of the mounting wall (3), and the connecting rod (9) is rotatably installed in the inner wall of the mounting wall (3).

6. The converter low-frequency anti-vibration rotary heavy-duty reducer according to claim 1, characterized in that: The internal gear (14) is movably embedded in the inner wall of the front end of the mounting wall (3), and the outer support wall (2) is rotated and attached to the front end of the mounting wall (3) through the internal gear (14).

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