Tractor suspension type automatic transplanting machine for plug tray seedlings

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.