Tensioning structure of chains for garlic harvesting equipment conveyor

Abstract

The invention relates to the technical field of agricultural machinery, in particular to a tensioning structure of chains for a garlic harvesting equipment conveyor. Multiple tensioning chain wheel assemblies are alternately arranged left and right, wherein a tensioning chain wheel of the left tensioning chain wheel assembly rightwards presses the right side of a left chain under the elastic force action of a tensioning chain wheel spring, so that the right side of a section of the left chain and the left side of a section of the right chain abut against each other. A tensioning chain wheel of the right tensioning chain wheel assembly leftwards presses the left side of the right chain under the elastic force effect of a tensioning chain wheel spring, and therefore the left side of the section of the right chain and the right side of the left chain abut against each other. The left chain or the right chain is provided with a horizontal sheet-shaped soft cushion, a bent-angle-shaped soft cushion or a vertical sheet-shaped soft cushion, garlic stems are prevented from being pinched off, and garlic heads are protected. According to the tensioning structure, the size specifications of the chains and the chain wheels can be reduced, the requirement for rigidity of a conveyor rack is also reduced, used mechanical materials can be reduced, the weight of equipment is reduced, the manufacturing cost is reduced, and the equipment is small in size, compact in structure and light in weight.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a garlic harvesting device, in particular to a tensioning structure for a conveyor chain of the garlic harvesting device. Background technique [0002] Patent application 201520374333.0, the application title is "A Garlic Harvester", the garlic harvester described includes a seedling clamping chain, and each set of seedling clamping chains is provided with an expansion wheel. image 3 It can be clearly seen that the expansion wheels 6 appear in pairs, and are arranged on the left and right sides of the two straight sides of the two seedling clamping chains that are close to each other. The expansion wheels 6 on the left push the left clamping wheel to the right The straight side of the seedling chain, the expansion wheel 6 on the right pushes the straight side of the seedling chain on the right to the left, the left and right expansion wheels 6 relatively squeeze th...

AI Technical Summary

Problems solved by technology

[0003] However, this technical solution is not reasonable

The longer the length of the straight sides of a pair of chains, the smaller the clamping force on the garlic stem at their midpoint. The length of the straight sides of the chain is inversely proportional to the clamping force at the midpoint. A pair of expansion wheels 6 are set. The 6 pairs of expansion pulleys are only in point contact with a pair of straight sides of the chain, which divides a long straight side of the chain into several short straight sides of the chain. In order to ensure that the "straight side of the chain" has a sufficient clamping force on the garlic stems sandwiched in the middle, it can ensure that the garlic can be pulled out from the field. This requires that the chain must have sufficient mechanical strength and be large enough. The size and specifications of the supporting frame must have sufficient rigidity to ensure the normal operation of the chain and sprocket assembly and other power input mechanisms. The mechanical materials used in various parts of the mechanism are more, resulting in waste of materials. The equipment is large in size and heavy in weight. Large, the garlic harvester puts a lot of pressure on the field, and compacting the field is not conducive to the production of the next crop

[0004] In addition, the chain plates of ordinary chains are made of steel, and the thickness of the chain plates is not too large. If you do not take any measures to directly use the "chain straight side pair" to clamp the garlic stems, it will also cut off the garlic, which is easy Pinch off the garlic stem, so that the garlic will fall in the field without pulling it out, resulting in waste

If the garlic is manually checked out from the field and dug out one by one, it will consume a lot of labor costs and seriously reduce production efficiency

Images