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Load test method and experimental research of mine excavator working device
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Rui WANG1, Xiaojun ZHU2, Yipin WAN2, Qingyong YANG3
Chinese Journal of Construction Machinery | 2025, 23(2) : 340 - 345
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Chinese Journal of Construction Machinery | 2025, 23(2): 340-345
• Performance Mensuration, Experimentation and Fault Diagnosis •
Load test method and experimental research of mine excavator working device
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Rui WANG1, Xiaojun ZHU2, Yipin WAN2, Qingyong YANG3
Affiliations
  • 1. Guangxi Ecological Engineering Vocational and Technical College, Liuzhou 545004, Guangxi, China
  • 2. The Key Laboratory of Road Construction Technology and Equipment of MOE, Chang'an University, Xi'an 710064, Shaanxi, China
  • 3. Liuzhou Liugong Excavator Co., Ltd., Liuzhou 545007, Guangxi, China
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Based on the stress model of excavator working device, a pin dynamic load test method considering eccentric load and side load of excavator working device is proposed. According to the stress characteristics of the pin shaft at the articulated hole between the bucket and the stick, a pin shaft load test sensor is designed to measure the dynamic load in the horizontal, vertical and lateral directions at the articulated point, and measure the displacement of the three oil cylinders of the excavator at the same time. A dynamic test system for the pin load of the excavator working device was established. Taking the domestic 50 t excavator as the prototype and the stonework as the working material, the excavation simulation loading test was carried out. The results show that the proposed pin load test method can accurately obtain the three-dimensional dynamic load of the pin at the joint of the bucket and the bucket. The maximum load occurs in the excavation section. The lateral load is negligible compared with the normal load. The results of the study provide the basis for the structural load spectrum test and fatigue optimization design of excavator.

mining excavator  /  working device  /  pin shaft load  /  testing experiment
Rui WANG, Xiaojun ZHU, Yipin WAN, Qingyong YANG. Load test method and experimental research of mine excavator working device[J]. Chinese Journal of Construction Machinery, 2025 , 23 (2) : 340 -345 .
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Year 2025 volume 23 Issue 2
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  • Online Date：2025-12-16
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    1. Guangxi Ecological Engineering Vocational and Technical College, Liuzhou 545004, Guangxi, China
    2. The Key Laboratory of Road Construction Technology and Equipment of MOE, Chang'an University, Xi'an 710064, Shaanxi, China
    3. Liuzhou Liugong Excavator Co., Ltd., Liuzhou 545007, Guangxi, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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