公开(公告)号：US20210329831A1

公开(公告)日：2021-10-28

申请号：US16477810

申请日：2018-07-24

Applicant: JIANGSU UNIVERSITY

Inventor： Jianping HU ,  Jie PAN ,  Weizheng FEI ,  Zhaoxia LUO ,  Lvhua HAN ,  Deyong YANG ,  Jing LI

IPC: A01C11/02

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. With the synergistic effect of various mechanisms and control system, it is possible to pick seedlings in whole row without interval in various sizes of plug-trays, and drop seedlings at the same time, which increase the efficiency and success rate of picking seedlings and dropping seedlings. The plug-tray only needs to move longitudinally, thereby improving the efficiency of the plug-tray transport. The seedling claw can comb the pot seedlings before being inserted into the pot, which improves the quality of seedling picking. The seedling guiding device receives the seedlings statically and shortens the free-falling movement distance, which makes seedling dropping more accurate.

公开(公告)号：US20210277496A1

公开(公告)日：2021-09-09

申请号：US16332754

申请日：2016-09-21

Applicant: JIANGSU UNIVERSITY

Inventor： Xiankai MENG ,  Jianzhong ZHOU ,  Chun SU ,  Jie SHENG ,  Jiale XU ,  Jing LI ,  Shu HUANG

IPC: C21D10/00 ,  C21D11/00 ,  C21D6/04 ,  B23K26/356 ,  B23K26/70 ,  F25D29/00 ,  F25D3/10

Abstract: In a cryogenic workbench, a cryogenic laser peening system and a control method. A a tapered surface gap d is adjusted, based on the electromagnetic principle, to control the gasification volume of liquid nitrogen, then the temperatures of the copious cooling workbench and the surface of a sample are precisely controlled by means of the adjustment of the heat absorption amount of liquid nitrogen gasification, the temperature adjustment range and the temperature rising/lowering rate of the cryogenic laser peening system are effectively extended, and the precision of the control of the surface temperature of the sample is increased in combination with a closed-loop control. Additionally, an intelligent control of a cryogenic laser peening process is realized by means of a computer and a PLC control unit, whereby the usage amount of liquid nitrogen in the experiment process is reduced and the processing efficiency is improved.

公开(公告)号：US20210277491A1

公开(公告)日：2021-09-09

申请号：US16332752

申请日：2016-09-21

Applicant: JIANGSU UNIVERSITY

Inventor： Jianzhong ZHOU ,  Xiankai MENG ,  Chun SU ,  Jie SHENG ,  Jiale XU ,  Shu HUANG ,  Jing LI

IPC: C21D6/04 ,  C21D10/00 ,  C22F3/00 ,  B23K26/0622 ,  B23K26/12 ,  B23K26/356 ,  B23K26/144

Abstract: A cryogenic laser shock strengthening method and apparatus based on a laser-induced high temperature plasma technology includes: liquid nitrogen doped with absorber powder is irradiated using high power laser beams, to generate partial high temperature plasma, the liquid nitrogen quickly vaporizes and expands under the action of the high temperature plasma to form high-speed high-pressure air streams, and the high-speed high-pressure air streams shock a metal surface in a low temperature environment to implement the strengthening of the surface. In addition, continuous pressure accumulation of a vaporization cavity can be implemented by means of multiple laser pulses to further increase the shock wave pressure of a metal surface, thereby improving the surface strengthening effect of the metal surface.