行业组件数据 · 2026

柔性杯壁

Flexible cup wall is the elastic deformation element in harmonic drive systems that enables precise motion transmission through controlled flexing.

技术定义与适配语境
典型 柔性杯壁 会按材料、尺寸公差、适配关系和失效风险在 机械和设备制造 中评估。

The flexible cup wall is a critical component of the flexspline in harmonic drive mechanisms, consisting of a thin-walled cylindrical structure with gear teeth on its outer periphery. It undergoes controlled elastic deformation when engaged with the wave generator, creating elliptical deflection that enables high-ratio speed reduction and torque multiplication through meshing with the circular spline.

组件规格

定义
The flexible cup wall is a critical component of the flexspline in harmonic drive mechanisms, consisting of a thin-walled cylindrical structure with gear teeth on its outer periphery. It undergoes controlled elastic deformation when engaged with the wave generator, creating elliptical deflection that enables high-ratio speed reduction and torque multiplication through meshing with the circular spline.
工作原理
Operates on strain wave gearing principle where the flexible cup wall deforms elliptically under pressure from the wave generator, causing its external teeth to engage progressively with the internal teeth of the circular spline, resulting in precise rotational motion transmission with high reduction ratios.
材料
High-strength alloy steel (typically 40CrNiMoA or similar)heat-treated to HRC 50-55with surface hardening for wear resistance. Alternative materials include maraging steel or titanium alloys for specialized applications.
Backlash
<1 arc-minute
Tooth Module
0.2-1.0 mm
Wall Thickness
0.5-2.0 mm
Torque Capacity
5-5000 Nm
Positioning Accuracy
<1 arc-minute
Operating Temperature
-40°C to +120°C
Reduction Ratio Range
50:1 to 320:1
标准
ISO 1328-1DIN 3960JIS B 1702

行业分类与别名

柔性杯壁 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Excessive cyclic loading beyond design limits->Fatigue crack propagation leading to wall rupture->Implement torque limiters, regular non-destructive testing, and proper load calculation during design
Inadequate or contaminated lubrication->Accelerated tooth wear and increased backlash->Use specified lubricants, establish maintenance schedules, and install contamination seals
Misalignment during assembly->Uneven tooth contact and premature failure->Use precision alignment tools, implement assembly procedures, and conduct run-in tests

工业生态与工程逻辑

0
Fatigue failure from cyclic stress
1
Tooth wear from improper lubrication
2
Overload deformation beyond elastic limit
3
Thermal expansion mismatch
4
Corrosion in harsh environments

合规与检测

tolerance
Tooth profile tolerance: IT4-IT5, Wall thickness variation: ±0.02 mm, Concentricity: 0.01 mm TIR
test method
Coordinate measuring machine (CMM) verification, Finite element analysis (FEA) for stress distribution, Dynamic fatigue testing per ISO 6336, Backlash measurement with precision encoders

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采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

What is the primary function of the flexible cup wall?

The flexible cup wall converts elliptical deformation into rotational motion through controlled flexing, enabling high-ratio speed reduction and torque multiplication in harmonic drive systems.

How does wall thickness affect performance?

Thinner walls increase flexibility and reduction ratio but reduce torque capacity, while thicker walls enhance durability and torque transmission at the expense of flexibility and reduction range.

What maintenance is required for flexible cup walls?

Regular lubrication with specified grease, periodic inspection for fatigue cracks, and monitoring of backlash increase. No routine adjustment is needed due to preloaded design.

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URN:CNFX:ME:UNIT:FLEXIBLE_CUP_WALL