High-power ring rolling mill main speed reducer output quick disassembly and assembly coupler
By designing a quick-release coupling structure including a lower pressure plate, main shaft, upper pressure plate, drum-shaped outer gear sleeve, and inner gear sleeve, the problem of complex disassembly of the output coupling of the main reducer of the existing high-power ring rolling mill is solved, enabling rapid replacement and improving production efficiency and equipment reliability.
Patent Information
- Application Number
- CN202520837580.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-29
AI Technical Summary
The disassembly process of the output coupling of the main reducer of the existing high-power ring rolling mill is complicated and cumbersome, resulting in long replacement time and affecting production quality and schedule.
A quick-release coupling structure was designed, comprising a lower pressure plate, a main shaft, an upper pressure plate, a drum-shaped outer gear sleeve, and an inner gear sleeve. The coupling is fixed with bolts and sealed with O-rings, and the installation is aided by a sight glass, simplifying the disassembly and assembly process.
It enables quick assembly and disassembly of couplings, shortens disassembly and installation time, improves production efficiency and equipment reliability, and reduces losses for manufacturers.
Smart Images

Figure CN223923633U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a coupling, specifically a quick-release coupling for the output of the main reducer of a high-power ring rolling mill. Background Technology
[0002] High-power ring rolling mills are crucial equipment for manufacturing ring components such as ultra-large gear gear rings and wind turbine tower flanges. They can roll ultra-large rings with outer diameters reaching 10-15 meters. The ring rolling mill manufacturing industry is rapidly developing due to the small dimensional errors in the rolled ring blanks and high production efficiency. Compared to ordinary forging, ring rolling mills significantly improve rolling efficiency and precision, hence their widespread use in the ring forging industry. The main reducer of the ring rolling mill is a key component of the entire equipment set, and its performance determines the overall performance of the ring rolling mill. With technological advancements and progress, the demand for ring components is increasing, particularly in wind power generation, aviation, and aerospace, placing higher requirements on existing equipment.
[0003] When the output coupling of the main reducer of a high-power ring rolling mill fails, it is usually necessary to quickly disassemble and replace the output coupling in order to ensure normal production. Currently, the existing output couplings are relatively complicated and cumbersome to disassemble, and disassembly and reinstallation take a long time, which cannot achieve the purpose of quickly replacing the output coupling. This seriously affects the production quality and schedule, causing great losses to the manufacturer. Summary of the Invention
[0004] The purpose of this utility model is to provide a quick-disassembly coupling for the output of the main reducer of a high-power ring rolling mill, which can quickly replace the coupling when it fails, shorten the disassembly and installation time, and ensure production quality and schedule.
[0005] The technical solution of this utility model is: the quick-release coupling includes: a lower pressure plate, a main shaft, an upper pressure plate, a drum-shaped outer gear sleeve, and an inner gear sleeve; the main shaft passes through the center of the drum-shaped outer gear sleeve, the bottom surface of the drum-shaped outer gear sleeve is fixed to the main shaft by the lower pressure plate and bolts, the top surface of the drum-shaped outer gear sleeve is fixed to the upper pressure plate, and the drum-shaped outer gear sleeve is inserted into the inner gear sleeve and meshes with it by moving the main shaft, thus forming a quick-release coupling.
[0006] In a further design, a second O-ring is installed between the top surface of the drum-shaped outer tooth sleeve and the upper pressure plate.
[0007] Further design involves installing the protective cover on the outer sleeve of the drum-shaped tooth using a protective cover pressure plate, a first O-ring, and bolts.
[0008] The design goes a step further by incorporating two viewing windows on the protective cover, with the viewing window covers secured to the windows by bolts.
[0009] The advantages of this utility model are:
[0010] 1. The protective cover is bolted to the outer sleeve of the drum-shaped gear, which is different from the previous method of using set screws to install it on the spindle. This method is more stable and less likely to fall off.
[0011] 2. O-rings are installed on the protective cover pressure plate and the upper pressure plate respectively for better waterproofing.
[0012] 3. Two viewing windows are provided on the protective cover. When the outer and inner toothed sleeves of the drum-shaped tooth are installed and aligned, the alignment process can be seen more clearly through the viewing windows, thus speeding up the installation process.
[0013] 4. The upper end of the inner gear sleeve is not covered. When the coupling fails, the outer gear sleeve and the inner gear sleeve of the drum shape will quickly separate, making disassembly and assembly convenient and quick.
[0014] 5. This utility model has a simple structure, flexible assembly and disassembly, saves a lot of time, reduces losses for users, improves the reliability of the reducer, and facilitates maintenance. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 A schematic diagram of the drum-shaped tooth alignment and removal;
[0017] In the diagram: 1. Protective cover, 2. Viewing hole cover, 3. Protective cover pressure plate, 4. First O-ring, 5. Lower pressure plate, 6. Main shaft, 7. Second O-ring, 8. Upper pressure plate, 9. Drum-shaped outer gear sleeve, 10. Inner gear sleeve. Detailed Implementation
[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings.
[0019] like Figure 1 As shown, this quick-release coupling includes: a lower pressure plate 5, a main shaft 6, an upper pressure plate 8, a drum-shaped gear outer sleeve 9, and an inner gear sleeve 10. The main shaft 6 passes through the center of the drum-shaped gear outer sleeve 9. The bottom surface of the drum-shaped gear outer sleeve 9 is fixed to the main shaft 6 by the lower pressure plate 5 and bolts. The upper pressure plate 8 is fixed to the top surface of the drum-shaped gear outer sleeve 9. The drum-shaped gear outer sleeve 9 moves through the main shaft 6 to insert into the inner gear sleeve 10 and mesh with it. The whole assembly constitutes a quick-release coupling.
[0020] In a further design, a second O-ring 7 is installed between the top surface of the drum-shaped toothed outer sleeve 9 and the upper pressure plate 8.
[0021] In a further design, the protective cover 1 is installed on the outer tooth sleeve 9 of the drum-shaped tooth using the protective cover pressure plate 3, the first O-ring 4, and bolts.
[0022] In a further design, two viewing windows are provided on the protective cover 1, and the viewing window cover 2 is fixed to the viewing window with bolts.
[0023] like Figure 2 As shown, during installation, the quick-release coupling is fixed to the output shaft of the main reducer via the inner gear sleeve 10 and bolts; during disassembly and replacement, the outer gear sleeve 9 with drum-shaped teeth is moved through the main shaft 6 to pull out the inner gear sleeve 10.
Claims
1. A quick-release coupling for the main reducer output of a high-power ring rolling mill, characterized by: The output quick dismounting coupling comprises a lower pressing plate (5), a main shaft (6), an upper pressing plate (8), a drum-shaped outer gear sleeve (9), and an inner gear sleeve (10). The main shaft (6) penetrates the center of the drum-shaped outer gear sleeve (9), the bottom surface of the drum-shaped outer gear sleeve (9) is fixed on the main shaft (6) by the lower pressing plate (5) and bolts, the top surface of the drum-shaped outer gear sleeve (9) is fixed with the upper pressing plate (8), the drum-shaped outer gear sleeve (9) is inserted into the inner gear sleeve (10) and engaged with the same by the main shaft (6), and the whole constitutes the quick dismounting coupling.
2. The quick dismounting coupling of the main speed reducer output of the high-power roller ring machine according to claim 1, characterized in that: A second O-shaped ring (7) is installed between the upper top surface of the drum-shaped outer gear sleeve (9) and the upper pressing plate (8).
3. The quick dismounting coupling of the main speed reducer output of the high-power roller ring machine according to claim 1, characterized in that in A protective cover (1) is installed on the drum-shaped outer gear sleeve (9) through a protective cover pressing plate (3), a first O-shaped ring (4), and bolts.
4. The quick dismounting coupling of the main speed reducer output of the high-power roller ring machine according to claim 3, characterized in that: Two sight hole windows are arranged on the protective cover (1), and a sight hole cover (2) is fixed on the sight hole windows by bolts.