Precise planetary reducer for servo ring rolling mill

Abstract

The utility model discloses a precise planetary reducer for a servo ring rolling mill, which relates to the technical field of reducers and comprises a first outer shell, a second outer shell is arranged on one side of the first outer shell, and the first outer shell and the second outer shell are fixedly connected through a plurality of bolts and nuts. An input shaft is arranged on the inner side of the first outer shell, the inner wall of the first outer shell is connected with the input shaft through an input rotating bearing, an auxiliary sun gear is fixedly arranged at the inner end of the input shaft, a main sun gear is arranged on the inner side of the second outer shell, and the auxiliary sun gear and the main sun gear are connected through a fixed rotating shaft. A gear ring is fixedly arranged on the outer side of the main sun gear and the inner wall of the second outer shell. The input shaft is subjected to limited rotation through the input rotating bearing, the running resistance during rotation of the input shaft is reduced, the input shaft is also prevented from being in contact with the inner wall of the first outer shell, and the auxiliary sun gear and the main sun gear are arranged in a matched mode, so that redundant space in the second outer shell is filled with lubricating grease.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer technology, specifically a precision planetary speed reducer for a servo ring rolling mill. Background Technology

[0002] The reducer for a ring rolling mill is a key component, primarily used to slow down the motor speed and provide sufficient torque to ensure the mill's normal operation. Ring rolling mills are commonly used in material processing in industries such as mining, metallurgy, and chemicals, and their operating environment requires reducers with high load-bearing capacity and good durability. Ring rolling mills are often used for heavy-duty operations, necessitating reducers with sufficient load-bearing capacity to support long-term, high-intensity work. Modern reducers for ring rolling mills often feature a compact design, providing efficient power output within limited space. Made of high-strength materials and precision-machined, these reducers can withstand harsh working environments, reducing malfunctions and maintenance needs.

[0003] Existing reducers for ring rolling mills are large in size, have large backlash, and poor control accuracy for the same power, resulting in large ring rolling mill size, difficulty in controlling the ring rolling size, and low accuracy. Therefore, a reducer with small footprint and high transmission efficiency is needed. Utility Model Content

[0004] The purpose of this invention is to provide a precision planetary reducer for a servo ring rolling mill to solve the problems mentioned in the background art.

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

[0006] A precision planetary reducer for a servo ring rolling mill includes a first outer casing and a second outer casing disposed on one side of the first outer casing. The first and second outer casings are fixedly connected by a plurality of bolts and nuts. An input shaft is disposed inside the first outer casing, and the inner wall of the first outer casing is connected to the input shaft via an input rotary bearing. A secondary sun gear is fixedly disposed at the inner end of the input shaft. A primary sun gear is disposed inside the second outer casing, and the secondary and primary sun gears are connected by a fixed rotating shaft. A gear ring is fixedly disposed on the outer side of the primary sun gear and the inner wall of the second outer casing. A plurality of planet gears are disposed between the gear ring and the primary sun gear, and the planet gears mesh with the gear ring and the primary sun gear. A connecting bracket is disposed on the plurality of planet gears. A flange output is fixedly disposed on the connecting bracket inside the second outer casing. A first tapered roller bearing is disposed on the left side of the planet gear inside the second outer casing.

[0007] As a further embodiment of this utility model: a second tapered roller bearing is provided on the right side of the planetary gear inside the second outer casing.

[0008] As a further improvement of this invention, a wear-resistant coating is applied to the shaft between the secondary sun gear and the primary sun gear.

[0009] As a further improvement of this utility model, the outer diameter of the input shaft is the same as the inner diameter of the input rotating bearing.

[0010] As a further improvement of this utility model, the outer diameter of the flange output is the same as the inner diameter of the first tapered roller bearing.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] The input shaft is limited by the input rotary bearing, reducing running resistance and preventing contact between the input shaft and the inner wall of the first housing. The auxiliary sun gear and the main sun gear are designed to provide redundant space in the second housing for grease filling. The first and second tapered roller bearings can withstand large axial and radial forces. Due to the large contact angle between the rollers and the inner and outer rings, they can maintain good operational stability under heavy loads. In addition, the first and second tapered roller bearings have high span support rigidity, so the bearing deformation is small under high load conditions, which can effectively improve the accuracy and stability of the system. The first and second tapered roller bearings can limit the planetary gears and also limit the rotation of the flange output and connecting bracket. In addition, the flange output makes the disassembly and maintenance of the equipment more convenient. Only the bolts need to be removed to quickly separate the shaft from other components, which facilitates maintenance and replacement of parts and reduces downtime. The flange output can also effectively transmit large torques, which is suitable for equipment operating under high loads. Under high torque conditions, the flange can maintain the stability of the connection and prevent transmission system failures. Attached Figure Description

[0013] Fig. 1 This is a three-dimensional structural diagram of the present invention.

[0014] Fig. 2 This is a schematic diagram of the rear view structure of this utility model.

[0015] Fig. 3 This is a schematic diagram of the main structure of this utility model.

[0016] Fig. 4 This is a side view of the structure of this utility model.

[0017] Fig. 5 This utility model Fig. 4 A schematic diagram of the cross-sectional structure at point AA.

[0018] Reference numerals in the attached drawings: 1. First outer casing; 2. Second outer casing; 3. Flange output; 4. Input shaft; 5. Input rotary bearing; 6. Sub-sun gear; 7. Planet gear; 8. Gear ring; 9. Main sun gear; 10. First tapered roller bearing; 11. Second tapered roller bearing; 12. Connecting bracket. Detailed Implementation

[0019] The following embodiments will be described in detail with reference to the accompanying drawings. In the drawings and description, similar or identical parts are referred to by the same reference numerals. Furthermore, in practical applications, the shape, thickness, or height of each component may be enlarged or reduced. The embodiments listed in this utility model are merely illustrative and not intended to limit the scope of the utility model. Any obvious modifications or alterations made to this utility model do not depart from its spirit and scope.

[0020] Example

[0021] Please see Figs. 1-5In this embodiment of the present invention, a precision planetary reducer for a servo ring rolling mill includes a first outer shell 1, a second outer shell 2 disposed on one side of the first outer shell 1, and the first outer shell 1 and the second outer shell 2 being fixedly connected by a plurality of bolts and nuts. An input shaft 4 is disposed inside the first outer shell 1, and the inner wall of the first outer shell 1 is connected to the input shaft 4 via an input rotation bearing 5. A secondary sun gear 6 is fixedly disposed at the inner end of the input shaft 4, and a primary sun gear 9 is disposed inside the second outer shell 2. The secondary sun gear 6 and the primary sun gear 9 are connected by a fixed rotating shaft. A gear ring 8 is fixedly mounted on the outer side of the main sun gear 9 and the inner wall of the second outer shell 2. A plurality of planet gears 7 are disposed between the gear ring 8 and the main sun gear 9, and the planet gears 7 mesh with the gear ring 8 and the main sun gear 9. A connecting bracket 12 is mounted on each of the planet gears 7. A flange output 3 is fixedly mounted on the connecting bracket 12 inside the second outer shell 2. A first tapered roller bearing 10 is mounted on the left side of each planet gear 7 inside the second outer shell 2, and a second tapered roller bearing 11 is mounted on the right side of each planet gear 7 inside the second outer shell 2. The input shaft 4 is limited to rotate via an input rotation bearing 5. To reduce the running resistance of the input shaft 4 during rotation and prevent the input shaft 4 from contacting the inner wall of the first housing 1, the auxiliary sun gear 6 and the main sun gear 9 are configured to provide redundant space within the second housing 2 for grease filling. The first tapered roller bearing 10 and the second tapered roller bearing 11 can withstand large axial and radial forces. Due to the large contact angle between the rollers and the inner and outer rings, they can maintain good operational stability under heavy loads. In addition, the first tapered roller bearing 10 and the second tapered roller bearing 11 have high span support rigidity, resulting in minimal bearing deformation under high load conditions. To improve the accuracy and stability of the system, the first tapered roller bearing 10 and the second tapered roller bearing 11 can limit the planetary gear 7, as well as limit the rotation of the flange output 3 and the connecting bracket 12. In addition, the flange output 3 makes the disassembly and maintenance of the equipment more convenient. The shaft can be quickly separated from other components simply by removing the bolts, which facilitates the repair and replacement of parts and reduces downtime. The flange output 3 can also effectively transmit large torques, making it suitable for equipment operating under high loads. Under high torque conditions, the flange can maintain the stability of the connection and prevent transmission system failures.

[0022] During installation, the power source output shaft is connected to the input shaft 4 via a connector. Then, the reducer output shaft is connected to other input components via bolts and nuts. Power is transmitted to the secondary sun gear 6 via the input shaft 4. The input rotating bearing 5 limits the input shaft 4. Then, the secondary sun gear 6 transmits power to the primary sun gear 9. The primary sun gear 9 transmits power to the planetary gears 7. The planetary gears 7 transmit power to the connecting bracket 12. The connecting bracket 12 then transmits power to the flange output 3, thus realizing power transmission.

[0023] 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.

[0024] 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 precision planetary reducer for a servo ring rolling mill, comprising a first outer casing (1), characterized in that, A second outer shell (2) is provided on one side of the first outer shell (1). The first outer shell (1) and the second outer shell (2) are fixedly connected by a number of bolts and nuts. An input shaft (4) is provided on the inner side of the first outer shell (1). The inner wall of the first outer shell (1) is connected to the input shaft (4) by an input rotation bearing (5). A secondary sun gear (6) is fixedly provided at the inner end of the input shaft (4). A primary sun gear (9) is provided on the inner side of the second outer shell (2). The secondary sun gear (6) and the primary sun gear (9) are connected by a fixed rotation bearing. The shaft is connected, and a gear ring (8) is fixedly provided on the outer side of the main sun gear (9) and the inner wall of the second outer shell (2). A plurality of planet gears (7) are provided between the gear ring (8) and the main sun gear (9) and the planet gears (7) mesh with the gear ring (8) and the main sun gear (9). A connecting bracket (12) is provided on the plurality of planet gears (7). A flange output (3) is fixedly provided on the connecting bracket (12) located inside the second outer shell (2). A first tapered roller bearing (10) is provided on the left side of the planet gear (7) located inside the second outer shell (2).

2. The precision planetary reducer for a servo ring rolling mill according to claim 1, characterized in that, A second tapered roller bearing (11) is provided on the right side of the planetary gear (7) inside the second outer casing (2).

3. The precision planetary reducer for a servo ring rolling mill according to claim 2, characterized in that, The shaft between the secondary sun gear (6) and the primary sun gear (9) is coated with a wear-resistant coating.

4. The precision planetary reducer for a servo ring rolling mill according to claim 3, characterized in that, The outer diameter of the input shaft (4) is the same as the inner diameter of the input rotating bearing (5).

5. The precision planetary reducer for a servo ring rolling mill according to claim 3, characterized in that, The outer diameter of the flange output (3) is the same as the inner diameter of the first tapered roller bearing (10).

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