行业组件数据 · 2026

肘板

Toggle plate is a critical safety component in jaw crushers that protects the machine from overload damage by breaking under excessive force.

技术定义与适配语境
典型 肘板 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 toggle plate is a replaceable sacrificial component in jaw crushers that connects the movable jaw to the frame. It functions as a mechanical fuse designed to fracture under extreme crushing forces, preventing catastrophic damage to more expensive crusher components like the pitman, bearings, and frame. Typically made from cast iron or manganese steel, it absorbs shock loads and ensures operational safety by failing predictably when uncrushable material enters the crushing chamber.

组件规格

定义
The toggle plate is a replaceable sacrificial component in jaw crushers that connects the movable jaw to the frame. It functions as a mechanical fuse designed to fracture under extreme crushing forces, preventing catastrophic damage to more expensive crusher components like the pitman, bearings, and frame. Typically made from cast iron or manganese steel, it absorbs shock loads and ensures operational safety by failing predictably when uncrushable material enters the crushing chamber.
工作原理
The toggle plate operates on the principle of controlled mechanical failure. During normal operation, it transmits crushing force from the movable jaw to the frame. When an overload condition occurs (e.g., tramp iron or excessive feed), the stress concentration at the designed weak points (often notches or reduced sections) causes the plate to fracture, disconnecting the force transmission path and protecting the main crusher structure. This sacrificial failure mechanism allows for quick replacement and minimal downtime compared to repairing major components.
材料
Typically ASTM A48 Class 30/35 gray cast ironASTM A128 Grade B2/B3 manganese steelor high-strength low-alloy (HSLA) steel. Material selection balances costpredictable fracture behaviorand wear resistance. Manganese steel offers better wear life in abrasive applications but higher cost.
Width
150-600 mm
Length
300-1500 mm
Weight
5-200 kg depending on crusher size
Hardness
200-350 HB for cast iron, 200-250 HB for manganese steel (work-hardening to 500+ HB)
Thickness
20-100 mm
Breaking Load
Designed to fail at 110-150% of normal operating load
标准
ISO 13521:1999DIN 2310ASTM A48ASTM A128

行业分类与别名

肘板 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

Material defect or improper heat treatment->Premature fracture below design load->Implement material certification and batch testing
Accumulation of uncrushable material in chamber->Overload fracture during operation->Install metal detectors and proper feed control systems
Corrosion or stress corrosion cracking->Unexpected fracture during startup->Use corrosion-resistant materials in humid environments

工业生态与工程逻辑

0
Catastrophic crusher damage if plate fails unpredictably
1
Downtime during replacement
2
Flying fragments during fracture
3
Incorrect installation leading to improper force distribution

合规与检测

tolerance
±1.5 mm on critical dimensions, ±0.5 mm on bolt hole positions
test method
Destructive testing to verify fracture load, ultrasonic testing for internal defects, hardness testing per ASTM E10

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

How often should toggle plates be replaced?

Toggle plates should be replaced when fractured or when wear exceeds 20% of original thickness. Regular inspection during maintenance intervals is recommended.

Can a toggle plate be reused after minor cracking?

No. Any visible crack indicates compromised structural integrity. Continued use risks unpredictable failure and potential damage to the crusher.

What causes premature toggle plate failure?

Common causes include improper material selection, manufacturing defects, incorrect installation torque, excessive feed rates, or presence of uncrushable materials in the feed.

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CNFX Industrial Component Index · 机械和设备制造

数据基础

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初步技术归类
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URN:CNFX:ME:UNIT:TOGGLE_PLATE