行业组件数据 · 2026

触发杆

A precision mechanical lever component in trigger assemblies that initiates machine operations through controlled force application.

技术定义与适配语境
典型 触发杆 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 Sear is a critical mechanical component within trigger assemblies, typically functioning as a precision lever or catch mechanism that controls the release of stored energy to initiate machine operations. It maintains a loaded position until a specific force threshold is applied, at which point it disengages to activate the connected system. In industrial machinery, sears are engineered for precise timing, repeatable actuation, and reliable force transmission between control inputs and mechanical outputs.

组件规格

定义
The Sear is a critical mechanical component within trigger assemblies, typically functioning as a precision lever or catch mechanism that controls the release of stored energy to initiate machine operations. It maintains a loaded position until a specific force threshold is applied, at which point it disengages to activate the connected system. In industrial machinery, sears are engineered for precise timing, repeatable actuation, and reliable force transmission between control inputs and mechanical outputs.
工作原理
The Sear operates on the principle of mechanical advantage and controlled release. It maintains a loaded position through geometric locking or friction, resisting movement until an external force (typically from a trigger or actuator) overcomes its resistance threshold. Once disengaged, it transfers kinetic energy to downstream components through rotational or linear motion, initiating the machine cycle. The precise angle of engagement surfaces determines the force required for release and the speed of subsequent motion.
材料
High-strength alloy steel (AISI 4140 or equivalent)case-hardened to 45-50 HRC for wear resistance. Alternative materials include stainless steel (17-4PH) for corrosive environments or engineered polymers (PEEKreinforced nylon) for lightweight applications.
Width
5-20 mm
Length
25-100 mm
Hardness
45-50 HRC
Thickness
3-10 mm
Release Force
5-50 N
Surface Finish
Ra 0.8-1.6 μm
Engagement Angle
15-45 degrees
Pivot Hole Diameter
3-8 mm
标准
ISO 2768-mDIN 7168ISO 8015

行业分类与别名

触发杆 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

Surface wear on engagement area->Premature release or failure to release->Regular inspection and replacement schedule, use of wear-resistant materials, proper lubrication
Material fatigue from cyclic loading->Fracture under operational stress->Fatigue life testing during design, implementation of load monitoring, scheduled replacement based on cycle count
Corrosion in humid or chemical environments->Seizing or unpredictable release characteristics->Use of corrosion-resistant materials, protective coatings, environmental controls

工业生态与工程逻辑

0
Premature release due to wear
1
Failure to release from material fatigue
2
Corrosion in harsh environments
3
Improper installation causing misalignment

合规与检测

tolerance
±0.05mm on critical dimensions, ±1 degree on engagement angles
test method
Release force testing per ISO 13849-1, wear testing per ASTM G99, fatigue testing per ISO 12107

制造该组件的工厂

来自 CNFX 组件能力表的相关制造商资料。

制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

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 a sear in industrial machinery?

The sear functions as a precision release mechanism that maintains a loaded position until a specific force is applied, then transfers energy to initiate machine operations with controlled timing and force.

How do I select the appropriate sear material for my application?

Consider operating environment (corrosion, temperature), required strength and wear resistance, and compatibility with mating components. Alloy steel is standard for durability, stainless steel for corrosive environments, and engineered polymers for lightweight or non-sparking applications.

What maintenance is required for sear components?

Regular inspection for wear on engagement surfaces, lubrication of pivot points, verification of release force consistency, and replacement when wear exceeds 0.1mm on critical surfaces or when release force deviates by more than 15% from specification.

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CNFX Industrial Component Index · 机械和设备制造

数据基础

CNFX 制造商资料、技术分类、公开产品信息和持续合理性检查。

初步技术归类
本页用于结构化准备研究、RFQ 和供应商评估,不替代买方自己的供应商资质审查、标准核验和技术批准。

请求制造能力信息: 触发杆

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URN:CNFX:ME:UNIT:SEAR