行业组件数据 · 2026

挖斗臂

A structural component in backhoe assemblies that connects the boom to the bucket for material excavation and handling.

技术定义与适配语境
典型 挖斗臂 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 dipper stick is a critical structural component in backhoe assemblies that transmits hydraulic force from the boom to the bucket, enabling precise digging, lifting, and material placement operations. It functions as an intermediate linkage that determines the machine's digging depth, reach, and bucket positioning accuracy.

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组件规格

定义
The dipper stick is a critical structural component in backhoe assemblies that transmits hydraulic force from the boom to the bucket, enabling precise digging, lifting, and material placement operations. It functions as an intermediate linkage that determines the machine's digging depth, reach, and bucket positioning accuracy.
工作原理
The dipper stick operates as a lever arm in a hydraulic linkage system. Hydraulic cylinders mounted between the boom and dipper stick provide rotational force, while additional cylinders between the dipper stick and bucket control bucket orientation. This creates a compound mechanical advantage that multiplies hydraulic force for efficient excavation.
材料
High-strength low-alloy (HSLA) steel ASTM A572 Grade 50 or equivalentwith yield strength ≥345 MPa and tensile strength ≥450 MPa. Critical stress areas may use quenched and tempered alloy steels like ASTM A514.
Length
1.5-3.5 meters (varies by machine size)
Weight
150-800 kg
Working Load
5-25 tons
Pin Diameters
50-100 mm
Maximum Bending Moment
50-300 kN·m
标准
ISO 7135DIN 15061SAE J1177

行业分类与别名

挖斗臂 的常用贸易名称、技术标识和检索关键词。

backhoe dipper stickexcavator linkageearthmoving componenthydraulic linkagedigging armequipment parts挖斗臂Dipper Stick机械和设备制造 挖斗臂

上级产品

该组件会出现在以下整机或工业产品中。

反铲挖掘机总成
构成反铲装载机挖掘和物料处理机构的集成总成。
查看产品详情 ->

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Cyclic loading exceeding material endurance limit->Fatigue crack propagation leading to structural failure->Implement regular NDT inspections, design with adequate safety factors (≥3:1), use stress-relieving manufacturing processes
Inadequate lubrication of pivot points->Accelerated wear of pins and bushings, reduced precision->Follow manufacturer's lubrication schedule, use sealed bearing systems, monitor pin clearance regularly

工业生态与工程逻辑

兼容对象
Backhoe loadersExcavatorsMaterial handlers
可替换件
CaterpillarKomatsuJohn DeereVolvo CEHitachi
0
Fatigue cracking at stress concentration points
1
Pin and bushing wear leading to slop
2
Overloading causing permanent deformation
3
Corrosion in harsh environments

合规与检测

tolerance
±1.5 mm on pin bore diameters, ±2 mm on overall length, angular alignment within 0.5 degrees
test method
Static load testing to 150% of rated capacity, fatigue testing to 100,000 cycles at 75% load, dimensional verification per ISO 2768-mK

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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。

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检修盖
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常见问题

What is the difference between a dipper stick and a boom?

The boom is the primary lifting arm attached to the machine's mainframe, while the dipper stick is the secondary arm connecting the boom to the bucket. The dipper stick provides finer control of bucket positioning and digging depth.

How often should dipper sticks be inspected?

Visual inspections should occur daily for cracks or deformation. Detailed non-destructive testing (magnetic particle or ultrasonic) should be performed every 500-1000 operating hours or as specified by the equipment manufacturer.

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CNFX Industrial Component Index · 机械和设备制造

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请求制造能力信息： 挖斗臂

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URN:CNFX:ME:UNIT:DIPPER_STICK