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What is the reason for the broken drill rod?

2025-10-22 10:18:35 mechanical

What is the reason for the broken drill rod? ——Network hotspot analysis and technical interpretation

Recently, the discussion about "broken drill rod fracture" in the mining and construction machinery fields has increased significantly. Combined with the hot topic data of the entire network in the past 10 days, this article will be developed from three dimensions: phenomenon analysis, fracture causes and solutions, and a structured data table is attached for reference.

1. Relevance analysis of hot topics across the entire network

What is the reason for the broken drill rod?

RankingRelated keywordsSearch volume (average daily)Main discussion platform
1Hydraulic breaker failure2,300+Zhihu/Tieba
2Drill rod material defects1,800+Professional and technical forum
3Rock crushing efficiency1,500+Short video platform

2. Five core reasons for drill rod breakage

According to the latest "White Paper on Maintenance of Hydraulic Breaking Tools" released by the Construction Machinery Association, the main causes of drill rod fracture are as follows:

Cause classificationSpecific performanceProportion
Material fatigueMicroscopic cracks caused by repeated impacts42%
Improper heat treatmentToo high hardness or insufficient temperingtwenty three%
Improper operationUnbalanced load impact/runaway phenomenon18%
Design flawsInsufficient transition fillet radius12%
external factorsExtreme rock hardness (>200MPa)5%

3. Comparison of typical working condition data

The fracture precursor data recorded by a certain mining equipment monitoring platform has important reference value:

Monitoring parametersnormal rangevalue before fracture
Vibration frequency18-22Hz28-35Hz
Oil temperature peak≤65℃82-90℃
single impact force120-150KN190-210KN

4. Preventive maintenance suggestions

Combining the opinions of industry experts, the following solutions are given:

1.Material upgrade: Using 42CrMoA alloy steel with vacuum quenching process, the fatigue life can be increased by 40%

2.operating instructions: Strictly implement the "three no's principle" - no empty operation, no unbalanced load, and no overtime continuous operation

3.Intelligent monitoring: Install IoT sensors to monitor the vibration spectrum in real time, and immediately shut down the machine for maintenance when abnormal harmonics above 3Hz occur.

5. Industry technology development trends

According to the Baidu Index, the search volume for "smart drill rod" increased by 170% week-on-week. The new self-sensing drill rod has entered the field testing stage, and it can achieve real-time visual monitoring of stress distribution through embedded optical fiber sensors.

Note: The statistical period of the data in this article is from November 1 to 10, 2023. The data sources include Zhihu Hot List, WeChat Index, Construction Machinery Industry Association and other public channels.

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