Right and left ear terminal grain-holding claw conveying chain guide device

Abstract

The invention discloses a guide rail device of a conveyor chain for crop-supporting claws used for supporting an ear at the left and the right ends thereof. The guide rail device comprises backwardly inclining transportation guide rails arranged at the left and the right sides of the face of the front end of a reaper. The guide rail device is characterized in that each transportation guide rail comprises two square bar metal bodies which are bent into the shape of an L; the two L-shaped solid square bar metal bodies are stacked with spacing; the leaning sections of the two square bar metal bodies are fixed with metal plates which are bent into grooves; the openings of the grooves face the sides of the two L-shaped solid square bar metal bodies which are stacked; a cover plate which is shaped by one-time pressing is installed on each transportation guide rail; the metal plates which are used for the installation of the transportation guide rails are arranged at the upper part and the lower part of the transportation guide rails; installation holes are formed on the metal plates; the metal plates which are bent into the grooves and used for the installation of the transportation guide rails are fixed in the welding manner. The invention has the advantages of convenient dismounting in the assembly and the maintenance, strong rigidity, high strength, abrasion resistance, and long service life.

Description

technical field [0001] The invention relates to the field of combine harvesters, in particular to a technology of a conveyor chain guide rail device for left and right fringe-end holding claws. Background technique [0002] In the combine harvester, there is generally a grain stalk conveying device on the front of the harvester. The grain-holding mechanism includes the grain-holding claws and the conveying chains of the grain-holding claws. The guide rail supports and moves along the conveying guide rail under the drive of the sprocket, so that the grain stalk conveying device changes the harvested grain stalk from the vertical position to the horizontal position while transporting it, so the harvested grain stalk is transported during the conveying process. It will cause friction on the parts that are in contact with it, causing wear, especially the wear on the conveying guide rail is more serious. In the existing technology, such as Kubota's series of harvesters, the conve...

AI Technical Summary

Problems solved by technology

[0002] In the combine harvester, there is generally a grain stalk conveying device on the front of the harvester. The grain-holding mechanism includes the grain-holding claws and the conveying chains of the grain-holding claws. The guide rail supports and moves along the conveying guide rail under the drive of the sprocket, so that the grain stalk conveying device changes the harvested grain stalk from the vertical position to the horizontal position while transporting it, so the harvested grain stalk is transported during the conveying process. It will cause friction on the parts that are in contact with it, causing wear, especially the wear on the conveying guide rail is more serious. In the existing technology, such as Kubota's series of harvesters, the conveying guide rails are all made of stamped sheet metal The structure is made, and the sheet metal structure is a building block structure that is assembled piece by piece, and the left and right conveyor rails are a single structure and the outer side of the conveyor rail doubles as a cover plate, in other words, the cover plate is also a part of the conveyor rail One part, its rigidity is small, and it is made of sheet metal structure, so the strength of the conveying guide rail is low, and the working environment is harsh, so it is not resistant to wear, easy to be corroded and perforated and damaged, and the service life is greatly shortened, especially the conveying guide rail After the outer surface of the outer surface is corroded and perforated, it needs to be replaced or repaired. At this time, the whole part needs to be dismantled, so it is very troublesome to replace or repair

In addition, when it is necessary to adjust the ear end, the entire structure needs to be removed to adjust, which is very troublesome to use

Because it is a block-type sheet metal structure, there are many parts, including many mounting screws, which are very complicated to disassemble during assembly and maintenance. Moreover, because of the many parts, the bolts are easy to rust, and it is difficult or impossible to remove them after they are rusted. Therefore, it also affects the service life and convenience of use

Images