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Design and Test of Nonlinear Mechanical Properties Detection Device of Rubber Bark Based on PLC
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Warong CHEN1, 2, Jianhua CAO1, 2, Bo FAN1, 2, Yishan ZHANG1, 2, *, Suwei XIAO1, 2, *, Xiangfeng DENG1, 2
Chinese Journal of Tropical Crops | 2024, 45(8) : 1705 - 1713
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Chinese Journal of Tropical Crops | 2024, 45(8): 1705-1713
• Post-harvest Treatment & Quality Safety •
Design and Test of Nonlinear Mechanical Properties Detection Device of Rubber Bark Based on PLC
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Warong CHEN1, 2, Jianhua CAO1, 2, Bo FAN1, 2, Yishan ZHANG1, 2, *, Suwei XIAO1, 2, *, Xiangfeng DENG1, 2
Affiliations
  • 1.Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan 571101, China
  • 2.Mechanical Sub-center of National Important Tropical Crops Engineering Technology Research Center, Haikou, Hainan 571101, China
Published: 2024-08-25 doi: 10.3969/j.issn.1000-2561.2024.08.020
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In order to obtain the structural mechanical property parameters of rubber bark and solve the problem that there is no reliable reference for accurate detection of rubber depth and accurate control of skin loss thickness in the research and development of mechanized rubber picking equipment, a test device for nonlinear mechanical property measurement of rubber bark based on PLC was designed to realize automatic continuous detection and data collection of rubber bark mechanical properties with high precision and low loss measurement of bark thickness. The mechanical properties of bark of 15-, 20- and 25-year-old rubber trees of Reyan 7-33-97 and PR107 were studied, and the mathematical model of piercing force with piercing depth was established. The experimental results showed that the performance of the device was stable, and the piercing force curves of different strains and different ages were similar, showing a high-low-high trend, and were highly correlated with the layered characteristics of the bark structure. Under the same age, the piercing force of two strains of Reyan 7-33-97 and PR107 was not significantly different, and the piercing force of older trees of the same strain was greater than that of younger trees. The maximum piercing force reached 48.5 N. The test device meets the requirement of detecting structural mechanical parameters of rubber bark and provides theoretical basis for the research and development of mechanized rubber harvesting equipment.

rubber tree bark  /  penetration force  /  mechanical property  /  tapping depth
Warong CHEN, Jianhua CAO, Bo FAN, Yishan ZHANG, Suwei XIAO, Xiangfeng DENG. Design and Test of Nonlinear Mechanical Properties Detection Device of Rubber Bark Based on PLC[J]. Chinese Journal of Tropical Crops, 2024 , 45 (8) : 1705 -1713 . DOI: 10.3969/j.issn.1000-2561.2024.08.020
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Article Info
doi: 10.3969/j.issn.1000-2561.2024.08.020
  • Receive Date：2024-01-10
  • Online Date：2026-06-23
  • Published：2024-08-25
Article Data
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History
  • Received：2024-01-10
  • Revised：2024-02-08
Funding
Affiliations
    1.Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan 571101, China
    2.Mechanical Sub-center of National Important Tropical Crops Engineering Technology Research Center, Haikou, Hainan 571101, 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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