A profile structure for a flange of a planetary reduction gear
By adopting magnesium alloy materials and a mesh structure design for the profile structure, the problems of large flange weight and poor vibration damping performance of planetary reducers have been solved, achieving lightweighting and strength improvement, reducing costs and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GAOSONG TRANSMISSION TECHNOLOGY (JIAXING) CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-29
AI Technical Summary
Currently, the ADC12 flange material for planetary gearboxes is relatively heavy and has only average vibration damping performance, making it difficult to achieve overall lightweight design.
The profile structure is made of magnesium alloy material, and the radial ribs and side plates form a mesh structure. The die casting fluidity and one-piece molding characteristics of magnesium alloy reduce the amount of processing and enhance the support. The resonance is reduced by guide grooves and mounting holes, and the rib thickness is designed to resist stress.
This achieves overall lightweighting of the planetary reducer flange, reduces defect rate and operating costs, improves strength and service life, and reduces stress concentration and resonance.
Smart Images

Figure CN224301334U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of planetary gear reducer technology, specifically a profile structure for a planetary gear reducer flange. Background Technology
[0002] Planetary gearboxes are high-precision, high-torque-density transmission devices widely used in industrial robots, automation equipment, and aerospace. The flange of a planetary gearbox is a core structural component that connects the gearbox to external equipment, directly affecting transmission rigidity, sealing performance, and installation accuracy.
[0003] Currently, planetary gear reducer flanges are mostly made of ADC12, which is not only heavy but also has relatively poor shock absorption performance, making it difficult to achieve overall lightweighting of planetary gear reducer flanges.
[0004] To address the aforementioned issues, we have made improvements by proposing a profile structure for planetary gearbox flanges. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0006] This utility model provides a profile structure for a planetary reducer flange, comprising a profile unit, characterized in that the profile unit includes a back plate and a support portion, a reserved groove is provided in the middle of the profile unit, a docking plate is provided on the front side of the reserved groove, an annular side plate is provided inside the reserved groove, radial ribs are provided on the back of the support portion, several ribs are separated from the edge and side plate of the support portion to form several weight-reducing holes, and several guide grooves are provided on the inner surface of the side plate.
[0007] The back plate and support are configured as an integrated molding structure, and the connecting plate, rib plate and side plate are all integrated molding structures with the profile unit;
[0008] The material of the profile unit is magnesium alloy.
[0009] As a preferred embodiment of this utility model, a stop groove is formed on the inner surface of the side plate.
[0010] As a preferred embodiment of this utility model, the front part of the docking plate is provided with a plurality of mounting holes, and the plurality of guide grooves correspond one-to-one with the positions of the mounting holes.
[0011] In a preferred embodiment of this invention, the thickness of the rib is half the total thickness of the profile unit.
[0012] As a preferred embodiment of this utility model, the profile unit is provided with fixing holes at its four corners, and the fixing holes penetrate the back plate and the support portion.
[0013] The beneficial effects of this utility model are:
[0014] 1. This profile structure for planetary reducer flanges uses magnesium alloy material to replace ADC12. The excellent die-casting fluidity of magnesium alloy material makes the overall structure of the planetary reducer flange more precise and stable. This not only reduces the amount of subsequent processing but also reduces the defect rate in the manufacturing process. In addition, it reduces the overall weight of the profile, which is conducive to realizing the overall lightweight system of planetary reducer flanges, reducing operating costs while improving product strength.
[0015] 2. The radial ribs, together with the support and side plates, form a mesh structure. The ribs provide support for high-stress areas, which can effectively avoid flange damage caused by stress concentration during use and extend the service life of the profile. At the same time, the weight-reducing holes in the low-stress areas can further reduce the overall weight of the profile. Attached Figure Description
[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the structure of this utility model;
[0020] In the diagram: 1. Profile unit; 101. Back plate; 102. Support part; 2. Reserved groove; 3. Connecting plate; 4. Mounting hole; 5. Guide groove; 6. Rib; 7. Weight reduction hole; 8. Fixing hole; 9. Stop groove; 10. Side plate. Detailed Implementation
[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0022] Example: Figure 1-3As shown, a profile structure for a planetary reducer flange includes a profile unit 1, which includes a back plate 101 and a support part 102. A reserved groove 2 is provided in the middle of the profile unit 1, a docking plate 3 is provided on the front side of the reserved groove 2, and an annular side plate 10 is provided inside the reserved groove 2. Radial ribs 6 are provided on the back of the support part 102. Several ribs 6 are separated from the edge of the support part 102 and the side plate 10 to form several weight-reducing holes 7. Several guide grooves 5 are opened on the inner surface of the side plate 10.
[0023] The back plate 101 and the support 102 are set as an integrated molding structure, and the mating plate 3, the rib plate 6 and the side plate 10 and the profile unit 1 are all integrated molding structures.
[0024] The material of profile unit 1 is magnesium alloy.
[0025] By replacing ADC12 with magnesium alloy, the excellent die-casting fluidity of magnesium alloy makes the profile unit 1 structure of the planetary reducer flange more precise and stable. This not only reduces the amount of subsequent processing and the defect rate in the manufacturing process, but also reduces the overall weight of profile unit 1. This is conducive to realizing the overall lightweight system of the planetary reducer flange, reducing operating costs while improving product strength.
[0026] A stop groove 9 is formed on the inner surface of the side plate 10 to share the shear force of the bolt and reduce the risk of deformation of the profile unit 1.
[0027] The front of the connecting plate 3 has several mounting holes 4 and several guide grooves 5 that correspond one-to-one with the positions of the mounting holes 4. While the equipment shaft passes through the mounting holes, its side is disconnected from the guide grooves 5, reducing the resonance generated by the equipment shaft during operation.
[0028] The thickness of rib 6 is half the total thickness of profile unit 1, in order to resist the stress generated during the operation of planetary reducer.
[0029] The profile unit 1 has four fixing holes 8 at its four corners. The fixing holes 8 pass through the back plate 101 and the support part 102. The profile unit 1 can be installed by bolts through the fixing holes 8.
[0030] Working principle: This profile structure for planetary reducer flanges uses magnesium alloy material to replace ADC12. The excellent die-casting fluidity of magnesium alloy material makes the profile unit 1 of the planetary reducer flange more precise and stable, which not only reduces the amount of subsequent processing and the defect rate in the manufacturing process, but also reduces the overall weight of the profile unit 1, which is conducive to realizing the overall lightweight system of the planetary reducer flange, reducing operating costs while improving product strength. The front of the mating plate 3 has several mounting holes 4 and several guide grooves 5, which correspond one-to-one with the positions of the mounting holes 4. When the equipment shaft passes through the mounting holes, its side is disconnected from the guide grooves 5, reducing the resonance generated by the equipment shaft during operation. The thickness of the rib plate 6 is 1 / 2 of the total thickness of the profile unit 1 to resist the stress generated during the operation of the planetary reducer.
[0031] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A profile structure for a planetary gear reducer flange, comprising a profile unit (1), characterized in that, The profile unit (1) includes a back plate (101) and a support part (102). A reserved groove (2) is provided in the middle of the profile unit (1). A docking plate (3) is provided on the front side of the reserved groove (2). An annular side plate (10) is provided inside the reserved groove (2). Radial ribs (6) are provided on the back of the support part (102). Several ribs (6) are separated from the edge of the support part (102) and the side plate (10) to form several weight-reducing holes (7). Several guide grooves (5) are opened on the inner surface of the side plate (10). The back plate (101) and the support (102) are configured as an integrated molding structure, and the docking plate (3), the rib plate (6) and the side plate (10) and the profile unit (1) are all integrated molding structures; The material of the profile unit (1) is magnesium alloy.
2. The profile structure for a planetary gear reducer flange according to claim 1, characterized in that, A stop groove (9) is formed on the inner surface of the side plate (10).
3. The profile structure for a planetary gear reducer flange according to claim 1, characterized in that, The front of the docking plate (3) is provided with several mounting holes (4), and the positions of the several guide grooves (5) correspond one-to-one with the mounting holes (4).
4. The profile structure for a planetary gear reducer flange according to claim 1, characterized in that, The thickness of the rib (6) is 1 / 2 of the total thickness of the profile unit (1).
5. The profile structure for a planetary gear reducer flange according to claim 1, characterized in that, The profile unit (1) is provided with fixing holes (8) at its four corners, and the fixing holes (8) pass through the back plate (101) and the support part (102).