High-strength inner gear ring
By introducing multiple threaded holes and grooves into the inner ring structure, combining the ring gear structure and rubber pad, the problem of low assembly accuracy of the existing inner ring is solved, and higher assembly accuracy and noise reduction are achieved, ensuring that The coaxiality between the ring gear and the drive end.
Patent Information
- Application Number
- CN202420927407.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-29
AI Technical Summary
The existing internal ring gear structure is inaccurate due to the long bolt alignment during assembly, resulting in low accuracy, large coaxial error, inconvenient assembly, and easy to generate noise during use.
A high-strength internal ring gear is designed. By setting multiple threaded holes and grooves on the ring gear body support column and assembly connecting column, combining the ring gear structure and rubber pads, the gearbox shaft ensures that the gearbox shaft supports the column on the ring gear body and the Precise alignment and connection between assembly connection columns improve assembly accuracy and further fixation with long bolts to reduce noise.
It improves the assembly accuracy of the internal ring gear, reduces noise, ensures the coaxiality between the ring gear and the drive end, simplifies the assembly process, and improves the overall mechanical performance.
Smart Images
Figure CN222277425U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of gear ring structures, in particular to a high-strength internal gear ring. Background Art
[0002] Gearboxes are widely used, for example, in wind turbines. Gearboxes are an important mechanical component that is widely used in wind turbines. There is an inner ring gear in the gearbox. The inner ring gear refers to the internal gear on the same axis as the planetary carrier in the planetary gear transmission. The existing inner ring gear structure is only connected to the drive end through long bolts and is positioned only by long bolts. After one of the long bolts on the four corners of the inner ring gear is assembled, the other long bolts are not aligned with the screw holes during assembly, which can easily lead to low precision and increase the coaxiality error between the ring gear body and the drive end cover, resulting in inconvenience in assembly. The low assembly precision will cause noise during use and operation. Summary of the invention
[0003] The utility model aims to solve the above problems in the prior art and proposes a high-strength internal gear ring with the advantage of higher assembly precision.
[0004] The purpose of the utility model can be achieved by the following technical solutions: a high-strength internal gear ring, comprising a gear ring body, the gear ring body is divided into a gear ring body support column and an assembly connection column, the gear ring body support column is connected to the assembly connection column, the gear ring body support column is provided with an assembly through hole, the four column corners of the gear ring body support column are provided with a first groove, a side of the gear ring body support column away from the assembly connection column is provided with a plurality of first threaded holes around the assembly through hole, the four column feet of the assembly connection column are provided with protrusions, and the protrusions are provided with second threaded holes;
[0005] A connecting through hole is provided on the equipment connecting column, and the connecting through hole is communicated with the assembly through hole.
[0006] Preferably, the assembly through hole is provided with a first annular groove, an annular gear structure, a second annular groove and a third annular groove from the side away from the assembly connecting column to the side close to the assembly connecting column, and the annular gear structure is provided with a plurality of tooth blocks and gear grooves, and tooth grooves are provided between the tooth blocks.
[0007] Preferably, an annular rubber pad is also installed in the connecting through hole of the assembly connecting column for shock absorption.
[0008] Preferably, the minimum diameter of the assembly through hole is greater than the maximum diameter of the connecting through hole.
[0009] Preferably, a guide groove is also provided on the first groove of the column angle of the supporting column of the gear ring body.
[0010] Compared with the prior art, the utility model has the following advantages: when the gear ring body is connected to the gearbox shaft, the gearbox shaft passes through the assembly through hole and the connecting through hole in sequence, and the gearbox shaft is threadedly connected to the first threaded holes on one side of the gear ring body support column by screws, which is conducive to improving the assembly accuracy, and a second threaded hole is opened on the protruding part of the assembly connecting column, and the connecting part of the gearbox shaft is assembled and connected with the gear ring body again by long bolts, which is conducive to better aligning the threaded holes and further improving the assembly accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a left side view of the utility model.
[0012] Figure 2 It is a cross-sectional view of the AA section of the present utility model.
[0013] Figure 3 It is a BB section cross-sectional view of the utility model.
[0014] Figure 4 It is a right side view of the present invention.
[0015] In the figure, 2, the gear ring main body support column; 21, the assembly through hole; 22, the first groove; 23, the first threaded hole; 3, the assembly connecting column; 31, the protrusion; 32, the second threaded hole; 33, the connecting through hole; 41, the first annular groove; 421, the toothed block; 422, the toothed groove; 43, the second annular groove; 44, the third annular groove; 5, the annular rubber pad; 6, the guide groove. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0017] like Figures 1 to 4 As shown, a high-strength internal gear ring includes a gear ring body, which is divided into a gear ring body support column 2 and an assembly connecting column 3. The gear ring body support column 2 is connected to the assembly connecting column 3. An assembly through hole 21 is opened on the gear ring body support column 2. Four column corners of the gear ring body support column 2 are provided with first grooves 22. A side of the gear ring body support column 2 away from the assembly connecting column 3 is provided with a plurality of first threaded holes 23 around the assembly through hole 21 as the center. The four column feet of the assembly connecting column 3 are provided with protrusions 31, and second threaded holes 32 are opened on the protrusions 31; a connecting through hole 33 is opened on the equipment connecting column, and the connecting through hole 33 is connected with the assembly through hole 21.
[0018] With the above structure, when the gear ring body is connected to the gearbox shaft, the gearbox shaft passes through the assembly through hole 21 and the connecting through hole 33 in sequence, and the gearbox shaft is threadedly connected to the first threaded holes 23 on one side of the gear ring body support column 2 by screws, which is conducive to improving the assembly accuracy, and a second threaded hole 32 is opened on the protruding portion 31 of the assembly connecting column 3, and the connecting part of the gearbox shaft is assembled and connected with the gear ring body again by a long bolt, which is conducive to better aligning the threaded holes, reducing the difficulty of installation, and further improving the assembly accuracy, and the assembly accuracy is higher.
[0019] Specifically, if Figures 1 to 4 As shown, the assembly through hole 21 is provided with a first annular groove 41, an annular gear structure, a second annular groove 43 and a third annular groove 44 from the side away from the assembly connecting column 3 to the side close to the assembly connecting column 3, and a plurality of tooth blocks 421 and gear grooves are provided on the annular gear structure, and tooth grooves 422 are provided between the tooth blocks 421 and the tooth blocks 421.
[0020] By adopting the above structure and setting up an annular gear structure, it is beneficial to precise operation when the transmission shaft is connected to the ring gear body; through the first annular groove 41 and the second annular groove 43, it is beneficial to limit the transmission shaft in the assembly through hole 21 of the ring gear body, so that its shaft is not easily deflected during rotation.
[0021] like Figures 1 to 4 As shown, an annular rubber pad 5 is also installed in the connection through hole 33 of the assembly connection column 3 for shock absorption.
[0022] By adopting the above structure, by arranging the annular rubber pad 5 in the connecting through hole 33, it is beneficial to enhance the shock absorption effect and prevent the gear shaft from generating vibration or noise during operation.
[0023] like Figures 1 to 4 As shown, the minimum diameter of the assembly through hole 21 is greater than the maximum diameter of the connecting through hole 33. This is conducive to facilitating the installation of the gearbox shaft into the gear ring body.
[0024] like Figures 1 to 4 As shown, the first groove 22 of the column angle of the gear ring body support column 2 is also provided with a guide groove 6. The guide groove 6 is provided to facilitate the long bolt to be screwed into and threadedly connected in the second threaded hole 32, and the structure is simple.
[0025] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0026] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. At the same time, the meaning of "and / or" appearing in the full text is that it includes three schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.
[0027] The above components are all common standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.
[0028] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
Claims
1. A high-strength internal gear ring, comprising a gear ring body, characterized in that: The gear ring body is divided into a gear ring body support column (2) and an assembly connection column (3), the gear ring body support column (2) is connected to the assembly connection column (3), an assembly through hole (21) is provided on the gear ring body support column (2), four column corners of the gear ring body support column (2) are provided with a first groove (22), a side of the gear ring body support column (2) away from the assembly connection column (3) is provided with a plurality of first threaded holes (23) around the assembly through hole (21), four column feet of the assembly connection column (3) are provided with protrusions (31), and second threaded holes (32) are provided on the protrusions (31); The assembly connection column (3) is provided with a connection through hole (33), and the connection through hole (33) is connected to the assembly through hole (21).
2. A high-strength internal gear ring according to claim 1, characterized in that: The assembly through hole (21) is provided with a first annular groove (41), an annular gear structure, a second annular groove (43), and a third annular groove (44) from a side away from the assembly connection column (3) to a side close to the assembly connection column (3); the annular gear structure is provided with a plurality of tooth blocks (421) and gear grooves; tooth grooves (422) are provided between the tooth blocks (421).
3. The high-strength internal gear ring according to claim 1, characterized in that: An annular rubber pad (5) is also installed in the connection through hole (33) of the assembly connection column (3) for shock absorption.
4. The high-strength internal gear ring according to claim 1, characterized in that: The minimum diameter of the assembly through hole (21) is greater than the maximum diameter of the connecting through hole (33).
5. The high-strength internal gear ring according to claim 1, characterized in that: A guide groove (6) is also provided on the first groove (22) at the column angle of the gear ring body support column (2).