Tractor suspension type automatic transplanting machine for plug tray seedlings

Patent metadata

Field	Value
Publication number	US-12127495-B2
Application number	US-202117443455-A
Country	US
Kind code	B2
Filing date	Jul 26, 2021
Priority date	Feb 20, 2020
Publication date	Oct 29, 2024
Grant date	Oct 29, 2024

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.

First claim

What is claimed is:

1. A tractor suspension automatic transplanting machine for plug tray seedlings, comprising 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, a watering device, and a seedling guide device, wherein
the machine frame comprises a first front cross beam, a second front cross beam, a middle cross beam, a first rear cross beam, a second rear cross beam, a first left longitudinal beam, a second left longitudinal beam, a first right longitudinal beam, a second right longitudinal beam, upright posts, a plug tray conveying bracket, a plug-tray-recovery-device mounting frame, and a placement-frame cross beam of the watering device; the first front cross beam, the first rear cross beam, the first left longitudinal beam, and the first right longitudinal beam are fixed on a plane to form a bottom bracket of the machine frame; the second front cross beam, the middle cross beam, the second rear cross beam, the second left longitudinal beam, and the second right longitudinal beam are fixed to another plane to form an upper bracket of the machine frame; the bottom bracket of the machine frame is connected to the upper bracket of the machine frame through the upright posts; the plug tray conveying bracket comprises a first plug-tray-conveying-device mounting longitudinal beam, a second plug-tray-conveying-device mounting longitudinal beam and linear-motion-shaft mounting bases; the first plug-tray-conveying-device mounting longitudinal beam and the second plug-tray-conveying-device mounting longitudinal beam are located between the middle cross beam and the second rear cross beam; the linear motion-shaft mounting bases are respectively fixed to the first plug-tray-conveying-device mounting longitudinal beam and the second plug-tray-conveying-device mounting longitudinal beam; the plug-tray-recovery-device mounting frame comprises mounting cross beams of the plug-tray-recovery-device mounting frame, left mounting upright posts of the plug-tray-recovery-device mounting frame and right upright posts of the plug-tray-recovery-device mounting frame; ends of the mounting cross beams of the plug-tray-recovery-device mounting frame are respectively mounted on the bottom bracket of the machine frame through the left mounting upright posts of the plug-tray-recovery-device mounting frame and the right upright posts of the plug-tray-recovery-device mounting frame; the placement-frame cross beam of the watering-device is located between the first left longitudinal beam and the first right longitudinal beam;
the land wheels are mounted on a left side and a right side of both the three-point linkage and the seedling separating and planting devices through first hold-hoops; the three-point linkage is welded in a middle portion of the first front cross beam and is configured for connecting to a tractor; the seedling pickup mechanism is mounted on the upper bracket of the machine frame, and comprises a seedling-pickup-mechanism bracket and a seedling pickup module; two sides of the seedling pickup module are respectively mounted on the seedling-pickup-mechanism bracket; the seedling pickup module picks up seedling pots at a seedling pickup position and conveys the seedling pots to a position above the seedling separating and planting device; the seedling guide device is fixed to the upper bracket of the machine frame, and is configured for guiding the seedling pots picked up by the seedling pickup module into the seedling separating and planting device; the plug tray conveying device is supported on the plug tray conveying bracket through the linear motion-shaft mounting bases; the plug tray conveying device is configured for conveying plug trays carried with the seedling pots to the seedling pickup position; the plug tray recovery device is mounted on the plug-tray-recovery-device mounting frame, and is located behind the plug tray conveying device; the plug tray conveying device is configured for conveying empty plug trays to the plug tray recovery device; the seedling separating and planting devices are connected to the first front cross beam; the seedling separating and planting devices are respectively mounted on a left side and a right side of the three-point linkage, and are configured for planting the seedling pots into a field ridge; the watering device comprises watering-nozzle water storage mechanisms and watering nozzles; the watering-nozzle water storage mechanisms are connected to the watering nozzles through screw threads; and the watering-nozzle water storage mechanisms are connected to the placement-frame cross beam of the watering device through second hold-hoops.

2. The tractor suspension automatic transplanting machine for plug tray seedlings according to claim 1 , wherein the plug tray recovery device comprises a plug tray recovery stacking box, a sliding plate, a plug-tray-conveyor-belt mounting bracket, a plug tray baffle-plate and a conveyor belt; the plug tray recovery stacking box is fixed to the first rear cross beam; two sides of the sliding plate are connected to the plug-tray-conveyor-belt mounting bracket; the sliding plate is mounted above the plug tray recovery stacking box; the plug-tray-conveyor-belt mounting bracket is mounted on the mounting cross beam of the plug-tray-recovery-device mounting frame; the plug tray baffle-plate is hinged and fixed to a side of the plug-tray-conveyor-belt mounting bracket which is opposite to the sliding plate, and is configured for changing angles of empty plug trays that are fallen, such that the empty plug trays are in contact with the conveyor belt steadily; the conveyor belt for plug trays is mounted in a middle portion of the plug-tray-conveyor-belt mounting bracket, and is configured for conveying the empty plug trays to the plug tray recovery stacking box.

3. The tractor suspension automatic transplanting machine for plug tray seedlings according to claim 1 , wherein a seedling-pickup-mechanism bracket comprises a front cross beam of the seedling-pickup-mechanism bracket, a middle cross beam of the seedling-pickup-mechanism bracket, a rear cross beam of the seedling-pickup-mechanism bracket, a first left longitudinal beam of the seedling-pickup-mechanism bracket, a first right longitudinal beam of the seedling-pickup-mechanism bracket, a second left longitudinal beam of the seedling-pickup-mechanism bracket, a second right longitudinal beam of the seedling-pickup-mechanism bracket, a damper mounting cross beam, and upright posts of the seeding-pickup-mechanism bracket, the front cross beam of the seedling-pickup-mechanism bracket, the middle cross beam of the seedling-pickup-mechanism bracket, the rear cross beam of the seedling-pickup-mechanism bracket, the first left longitudinal beam of the seedling-pickup-mechanism bracket, and the second left longitudinal beam of the seedling-pickup-mechanism bracket form an seedling-pickup-bracket upper bracket; the seedling-pickup-bracket upper bracket is fixed to the upper bracket of the machine frame through the upright posts of the seedling-pickup-mechanism bracket; two ends of the damper mounting cross beam are respectively mounted on the first right longitudinal beam of the seedling-pickup-mechanism bracket and the second right longitudinal beam of the seedling-pickup-mechanism bracket; the first right longitudinal beam of the seedling-pickup-mechanism bracket is located below the first left longitudinal beam of the seedling-pickup-mechanism bracket, and two ends of the first right longitudinal beam of the seedling-pickup-mechanism bracket are connected to the upright posts of the seedling-pickup-mechanism bracket; the second right longitudinal beam of the seedling-pickup-mechanism bracket is located below the second left longitudinal beam of the seedli

Assignees

• Univ Jiangsu

Inventors

• Hu Jianping
• Yue Rencai
• Liu Yijun
• Luo Zhaoxia
• Jia Cuiping
• Wang Zhen
• Huang guanlong
• Qin Fang
• Wu Dongdong
• Han Lvhua
• Yang Deyong

Classifications

• A01G9/086

  Devices for repotting · CPC title

• A01G25/09

  Watering arrangements making use of movable installations on wheels or the like · CPC title

• A01C11/025 Primary

  Transplanting machines using seedling trays; Devices for removing the seedlings from the trays · CPC title