Patents by Inventor Lvhua Han

Lvhua Han has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12127495
    Abstract: A tractor suspension type automatic transplanting machine for plug tray seedlings includes land wheels, a machine frame, a three-point linkage, a seedling pickup mechanism, a plug tray conveying device, a plug tray recovery device, seedling separating and planting devices driven by land wheels, and a watering device. Through front and rear drive cylinders, the seedling pickup mechanism is driven to move front and back to pick up seedlings above plug trays and release seedlings above a seedling guide device. Juxtaposed left and right seedling pickup modules in the seedling pickup mechanism are driven by left and right drive cylinders, to move left and right and pick up seedlings after combing, and to release seedlings after separating towards left and right. Plug trays fall onto a plug tray conveyor belt of the plug tray recovery device and slides into a plug-tray-recovery stacking box.
    Type: Grant
    Filed: July 26, 2021
    Date of Patent: October 29, 2024
    Assignee: JIANGSU UNIVERSITY
    Inventors: Jianping Hu, Rencai Yue, Yijun Liu, Zhaoxia Luo, Cuiping Jia, Zhen Wang, Guanlong Huang, Fang Qin, Dongdong Wu, Lvhua Han, Deyong Yang
  • Patent number: 11938619
    Abstract: An adjustable seedling pick-up end effector for automatically transplanting plug seedlings is provided includes two clamping fingers installed symmetrically along a direction of a center line, support frames respectively connected adjustably to the clamping fingers, and a mechanical arm fixedly connected to the support frames. The mechanical arm is constructed to drive a clamping pin mechanism to execute actions of prying, grabbing, and quickly releasing the plug seedlings, and the adjustment of the opening degree and the clamping angle of the clamping pin mechanism is realized by adopting the adjustably connected support frames. The end effector can be actively opened and closed to grab and release the plug seedlings, provide a larger space to accommodate the plug seedlings so as not to damage the seedlings, and adjust the opening degree and the clamping angle, which can meet the seedling pick-up requirements for automatic transplanting of plug seedlings of various specifications.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: March 26, 2024
    Assignee: JIANGSU UNIVERSITY
    Inventors: Lvhua Han, Menghan Mo, Haorui Ma, Hanping Mao, Jianping Hu
  • Publication number: 20230247936
    Abstract: An adjustable seedling pick-up end effector for automatically transplanting plug seedlings includes two clamping fingers installed symmetrically along a direction of a center line, support frames respectively connected adjustably to the clamping fingers, and a mechanical arm fixedly connected to the support frames. The mechanical arm is constructed to drive a clamping pin mechanism to execute actions of prying, grabbing, and quickly releasing the plug seedlings, and the adjustment of the opening degree and the clamping angle of the clamping pin mechanism is realized by adopting the adjustably connected support frames. The end effector can be actively opened and closed to grab and release the plug seedlings, provide a larger space to accommodate the plug seedlings so as not to damage the seedlings, and adjust the opening degree and the clamping angle, which can meet the seedling pick-up requirements for automatic transplanting of plug seedlings of various specifications.
    Type: Application
    Filed: March 18, 2022
    Publication date: August 10, 2023
    Applicant: JIANGSU UNIVERSITY
    Inventors: Lvhua HAN, Menghan MO, Haorui MA, Hanping MAO, Jianping HU
  • Patent number: 11464156
    Abstract: A monitoring system and a monitoring method for a planter includes a computer having an unit speed fusion module, a seeding flow rate monitoring module, and a decision module for theoretical rotation speed of a drive motor, a rotation speed deviation inference module, a controlling parameter tuning module, an adjusting module for rotation speed of a seeding shaft, a controlling module for rotation speed of seeding shaft and a positioning signal receiver fixed on a top of a cab for receiving a geographic position signal. The system monitors operating state parameters of the planter and accurately controls seed amount.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: October 11, 2022
    Inventors: Jianping Hu, Wei Liu, Jiaming Luo, Lvhua Han, Deyong Yang, Lili Dong
  • Patent number: 11382259
    Abstract: A plug-tray seedling automatic transplanting machine and control method thereof, wherein, said machine comprises a chassis bracket, a planting mechanism, seedling separating mechanisms, seedling guiding devices, a power mechanism, a box shifting mechanism, a seedling picking mechanism. The box shifting mechanism is installed on the chassis bracket, the seedling picking mechanism is installed on the box shifting mechanism, and two sets of seedling separating mechanism are symmetrically arranged on both sides of the box shifting mechanism by the chassis bracket, the seedling guiding device is provided above each set of seedling separating mechanism, and the planting mechanism is provided under each set of seedling separating mechanism.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: July 12, 2022
    Assignee: JIANGSU UNIVERSITY
    Inventors: Jianping Hu, Jie Pan, Weizheng Fei, Zhaoxia Luo, Lvhua Han, Deyong Yang, Jing Li
  • Patent number: 11259458
    Abstract: An automatic picking and launching seedling device for a transplanting machine is provided, as well as methods of using the same. The device includes a seedling picking mechanism, seedling guiding devices, a box shifting mechanism and seedling separating mechanisms. The seedling picking mechanism is mounted on the box shifting mechanism, the two sets of seedling separating mechanisms are symmetrically arranged on both sides of the box shifting mechanism, and the seedling guiding device is arranged on the top of the seedling separating mechanism. The box shifting mechanism transports the disc to the seedling picking point, and the seedling picking mechanism moves the picking seedling claws to the seedling picking point to take the seedlings and moves to the seedling launching point to launch the seedlings.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: March 1, 2022
    Assignee: JIANGSU UNIVERSITY
    Inventors: Jianping Hu, Jie Pan, Weizheng Fei, Lvhua Han
  • Publication number: 20210352839
    Abstract: A tractor suspension type automatic transplanting machine for plug tray seedlings is provided. The machine includes land wheels, a machine frame, a three-point linkage, a seedling pickup mechanism, a plug tray conveying device, a plug tray recovery device, seedling separating and planting devices driven by land wheels, and a watering device. Through front and rear drive cylinders, the seedling pickup mechanism is driven to move front and back to pick up seedlings above plug trays and release seedlings above a seedling guide device. Juxtaposed left and right seedling pickup modules in the seedling pickup mechanism are driven by left and right drive cylinders, to move left and right and pick up seedlings after combing, and to release seedlings after separating towards left and right. Plug trays fall onto a plug tray conveyor belt of the plug tray recovery device and slides into a plug-tray-recovery stacking box.
    Type: Application
    Filed: July 26, 2021
    Publication date: November 18, 2021
    Applicant: JIANGSU UNIVERSITY
    Inventors: JIANPING HU, RENCAI YUE, YIJUN LIU, ZHAOXIA LUO, CUIPING JIA, ZHEN WANG, GUANLONG HUANG, FANG QIN, DONGDONG WU, LVHUA HAN, DEYONG YANG
  • Publication number: 20210329830
    Abstract: The present invention provides an automatic picking and launching seedling device for transplanting machine and method thereof. The device includes a seedling picking mechanism, seedling guiding devices, a box shifting mechanism and seedling separating mechanisms. The seedling picking mechanism is mounted on the box shifting mechanism, the two sets of seedling separating mechanisms are symmetrically arranged on both sides of the box shifting mechanism, and the seedling guiding device is arranged on the top of the seedling separating mechanism. The box shifting mechanism transports the disc to the seedling picking point, and the seedling picking mechanism moves the picking seedling claws to the seedling picking point to take the seedlings and moves to the seedling launching point to launch the seedlings. The seedling guiding device makes the seedling pot to enter the seedling separating mechanism according to a predetermined trajectory.
    Type: Application
    Filed: March 14, 2018
    Publication date: October 28, 2021
    Inventors: Jianping HU, Jie PAN, Weizheng FEI, Lvhua HAN
  • Publication number: 20210329831
    Abstract: The invention provides a plug-tray seedling automatic transplanting machine and control method thereof, wherein, said machine comprises a chassis bracket, a planting mechanism, seedling separating mechanisms, seedling guiding devices, a power mechanism, a box shifting mechanism, a seedling picking mechanism. The box shifting mechanism is installed on the chassis bracket, the seedling picking mechanism is installed on the box shifting mechanism, and two sets of seedling separating mechanism are symmetrically arranged on both sides of the box shifting mechanism by the chassis bracket, the seedling guiding device is provided above each set of seedling separating mechanism, and the planting mechanism is provided under each set of seedling separating mechanism.
    Type: Application
    Filed: July 24, 2018
    Publication date: October 28, 2021
    Inventors: Jianping HU, Jie PAN, Weizheng FEI, Zhaoxia LUO, Lvhua HAN, Deyong YANG, Jing LI
  • Publication number: 20200245531
    Abstract: A monitoring system for and a monitoring method for a planter includes a computer having an unit speed fusion module, a seeding flow rate monitoring module, and a decision module for theoretical rotation speed of a drive motor, a rotation speed deviation inference module, a controlling parameter tuning module, an adjusting module for rotation speed of a seeding shaft, a controlling module for rotation speed of seeding shaft; and a positioning signal receiver fixed on a top of a cab for receiving a geographic position signal. The system monitors operating state parameters of the planter and accurately controls seed amount.
    Type: Application
    Filed: July 13, 2018
    Publication date: August 6, 2020
    Inventors: Jianping HU, Wei LIU, Jiaming LUO, Lvhua HAN, Deyong YANG, Lili DONG
  • Patent number: 10524411
    Abstract: Described is a high-speed transplanting mechanism that includes an angle-adjusting device about an angle of a duckbill entering soil, the mechanism comprising a rear arm, a front arm, a restoring spring, a control wire, a control wire sleeve and a control adjuster. The front arm is hinged on the mounting base of the planting device, the rear arm is hinged on the duckbill planting device, and the another end of the rear arm and the front arm are axial sliding connection. The control adjuster comprises an adjuster body and a handle fixed on the adjuster body. The restoring spring is positioned between the first limit plate on the rear arm and the second limit plate on the front arm. The end of the control wire is fixed on the second limit plate and, in turn, the other end of the control wire passes through the first limit plate, the restoring spring, the second limit plate and the control wire sleeve, and finally fixed to the adjuster body.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: January 7, 2020
    Assignee: Jiangsu University
    Inventors: Lili Dong, Lvhua Han, Zhen Wang