Sawblade-type straw returning machine

Abstract

The invention discloses a sawblade-type straw returning machine which consists of a straw chopping device, a traction device and a power transmission device; the straw chopping device is installed at the rear part of the traction device and provided with a front sawblade shaft, a rear sawblade shaft, a front barbed nail shaft and a rear barbed nail shaft; the two sawblade shafts are arranged in the middle of the straw chopping device; the two barbed nail shafts are respectively arranged at the front part of the front sawblade shaft and the rear part of the rear sawblade shaft; the sawblades sheathed on the front sawblade shaft and the rear sawblade shaft are staggered from front to rear and overlapped from left to right; the barbed nails on the two barbed nail shafts are respectively staggered from front to rear and overlapped from left to right with the sawblades on the front sawblade shaft and the rear sawblade shaft; the rotation direction of the front sawblade shaft and the front barbed nail shaft is consistent with the rotation direction of the wheels of the traction device; and the rotation direction of the rear sawblade shaft and the rear barbed nail shaft is opposite to therotation direction of the wheels of the traction device. The invention relates to a sawblade-type straw returning machine with simple operation and low manufacturing cost.

Description

technical field [0001] The invention relates to an agricultural machine, in particular to a saw-blade straw-returning machine for crushing corn and other crop straws on the spot and returning them to the field. Background technique [0002] Chinese patent specification CN101336586 discloses a saw blade type straw returning machine, which is composed of a tractor, a straw dumping device, a straw crushing device and a power transmission device. In addition to the power transmission device, the whole system of the straw returning machine also includes a straw dumping device arranged in front of the tractor and a straw crushing device arranged behind the tractor. In fact, there are two relatively independent devices besides the tractor. Their structures are relatively Huge and expensive to manufacture. In addition, the power transmission device relies on the tail shaft of the tractor to transmit power to the straw dumping device and the straw crushing device respectively throug...

AI Technical Summary

Problems solved by technology

In addition to the power transmission device, the whole system of the straw returning machine also includes a straw dumping device arranged in front of the tractor and a straw crushing device arranged behind the tractor. In fact, there are two relatively independent devices besides the tractor. Their structures are relatively Huge and expensive to manufacture

In addition, its power transmission device relies on the tail shaft of the tractor to transmit power to the straw dumping device and the straw crushing device respectively through the power transmission device. The structure of this power transmission device is relatively complicated, and the manufacturing cost is also relatively high.

At the same time, the straw returning machine is composed of two parts arranged at the front and rear of the tractor, and the operation is also troublesome.

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