S-shaped flexible gear structure of harmonic reducer
By adopting an S-shaped flexible wheel structure and a through-groove design, the problems of excessive axial length and stress concentration in the harmonic reducer were solved, achieving the effects of shortening the axial length and extending the service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-03-10
AI Technical Summary
The axial dimension of the flexible wheel structure in existing harmonic reducers is relatively long, which makes them susceptible to space constraints and stress concentration, affecting product lifespan.
The structure adopts an S-shaped flexible wheel, including a connecting bottom and a toothed area. The connecting bottom has a connecting flange area and a thin-walled deformation area. The thin-walled deformation area is S-shaped and has multiple through grooves to reduce stress concentration.
This reduces the axial dimension of the harmonic reducer, decreases stress concentration, and improves the product's service life.
Smart Images
Figure CN223984756U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a harmonic reducer, specifically relates to a harmonic reducer S shape flexspline structure. BACKGROUND
[0002] The flexspline of the existing harmonic reducer is straight cylinder cup type structure, and the torque generated by the rotation needs to be transmitted through the flexspline deformation, in order to achieve the corresponding deformation, and the flexspline structure cannot be damaged, so the axial length of the flexspline is often designed to be longer, so that the axial size of the harmonic reducer is longer, and the application is limited by space, and the stress is concentrated at the cup bottom of the flexspline during use, damage is prone to occur, and the product life is reduced. SUMMARY
[0003] The utility model solves the technical problem that the above-mentioned defects of prior art are overcome and provides a harmonic reducer S shape flexspline structure, which has a small axial size.
[0004] The utility model adopts the technical scheme that:
[0005] A harmonic reducer S shape flexspline structure, which comprises a connecting bottom and a tooth profile area, the tooth profile area comprises a tooth part and a connecting part, the bottom end of the connecting part is connected with the outer edge of the connecting bottom, the connecting bottom comprises a connecting flange area and a thin wall deformation area, the connecting flange area is located at the center of the bottom and is connected with the thin wall deformation area outside, and the thin wall deformation area is in S shape.
[0006] In order to reduce stress concentration, the thin wall deformation area has a plurality of through grooves.
[0007] The both ends of the through groove are smooth transition curved surfaces.
[0008] Compared with the prior art, the harmonic reducer S shape flexspline structure of the utility model has a small axial size, a relatively simple structure, effectively reduces stress concentration and improves the service life of the product. BRIEF DESCRIPTION OF DRAWINGS
[0009] Figure 1 It is the harmonic reducer S shape flexspline structure schematic diagram of the utility model embodiment.
[0010] Figure 2 It is the flexspline three-dimensional schematic diagram of the harmonic reducer of the utility model embodiment.
[0011] Figure 3 It is Figure 2 The smooth curved surface structure schematic diagram of the through groove in the above-mentioned harmonic reducer S shape flexspline structure.
[0012] The figure is marked as: 100, the flexible gear; 110, the connecting bottom; 111, the connecting flange area, 112, the thin wall deformation area; 113, the through groove; 114, the smooth curved surface; 120, the tooth profile area. DETAILED DESCRIPTION
[0013] The utility model is further described below in combination with the drawings and examples.
[0014] As Figures 1-3 shown in the figure, an S-shaped flexible gear structure of harmonic reducer includes a connecting bottom 110 and a tooth profile area 120.
[0015] The tooth profile area 120 includes a tooth part and a connecting part, and the bottom end of the connecting part is connected with the outer edge of the connecting bottom 110.
[0016] The connecting bottom 110 includes a connecting flange area 111 and a thin wall deformation area 112, and the connecting flange area 111 is located in the center of the bottom and is connected with the external thin wall deformation area 112.
[0017] The thin wall deformation area 112 is in an S shape.
[0018] The thin wall deformation area 112 has a plurality of through grooves 113, and the two ends of the through grooves are smooth curved surfaces 114.
Claims
1. A harmonic reducer S-shaped flexspline structure, characterized in that: It comprises a connecting bottom and a tooth-shaped area, the tooth-shaped area comprises tooth parts and connecting parts, the bottom end of the connecting parts is connected with the outer edge of the connecting bottom, the connecting bottom comprises a connecting flange area and a thin-wall deformation area, the connecting flange area is located in the center of the bottom and is connected with the outer thin-wall deformation area, and the thin-wall deformation area is in S shape.
2. The harmonic reducer S-shaped flexspline structure according to claim 1, characterized in that: The thin-wall deformation area has a plurality of through grooves.
3. The harmonic reducer S-shaped flexspline structure of claim 2, wherein: The two ends of the through grooves are smooth transition curved surfaces.