Double straw clamping rods for half-feed combine harvester

Abstract

The invention discloses double straw clamping rods for a half-feed combine harvester. The double straw clamping rods are used for the half-feed combine harvester to clamp straws in the conveying and threshing of harvesting operation. A straw clamping rod I obtains corresponding initial pre-tightening force through a spring compressed to a certain extent and mounted in the middle of a pin shaft base, is clung onto a roller of a lower feeding straw chain, can perform backward rectilinear motion after being squeezed by straws in the harvesting process to continue to compress the spring and make room for the passing of straws; A straw clamping rod II obtains corresponding initial pre-tightening force through a spring compressed to a certain extent and mounted at the upper part of the pin shaft base, is clung onto a roller of a middle feeding straw chain, can rotate and swing backwards after being squeezed by straws in the harvesting process to continue to compress the spring and make room for the passing of straws; the straw clamping rod I is away from the straw clamping rod II at a certain distance, and can firmly clamp both ends of the conveying straws simultaneously.

Description

technical field [0001] The invention relates to a device for clamping rice stalks in the conveying and threshing process of a half-feed combine harvester. Background technique [0002] The clamping straw is a clamping device widely used in half-feed combine harvesters. The clamping straw is usually composed of a bearing pin seat, a clamping straw, a spring, a bearing pin, a spring seat and a fastener. During work, the force provided by the spring assembled on the pin seat makes the clamping stalk tightly press the rice stalk on the grain delivery chain of the harvester, and the rotating grain delivery chain transports the rice stalk to the harvester for harvesting. The threshing mechanism of the table combs off the ear part of the rice stalk, and discharges the threshed rice stalk into the field. Usually, clip straw is a single structure, and it can only be pressed on a certain part of rice stalk on the grain delivery chain. Because the clamping force provided by the clam...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the difficulty in adjusting the clamping force of the existing straw clamping straw and the deficiency that the clamped rice straw cannot ensure the upright state and increase the loss rate, the present invention provides a double clamping straw, which not only clamps the straw The adjustment of the clamping straw is not as strict as the clamping straw with a single structure, which avoids the defect that the rice stalk cannot be clamped or broken, and two independent clamping straws (respectively clamping straw Ⅰ and clamping straw Ⅱ) are simultaneously Clamping the rice stalk makes it easier to ensure that the conveying rice stalk is in an upright state, so that the rice ear part of the rice stalk can be combed to the greatest extent, reducing the loss rate during the harvesting process and avoiding large grain waste

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