CN2377823Y - Chaff-cutter - Google Patents

Abstract

The utility model discloses a crushing machine for feeding stalk back to field. The utility model comprises a feeding platform, a feeding port, a transmission wheel and a fixed cutter. The utility model is characterized in that a rotating shaft of a movable cutter frame is parallel to a feeding roller, and the movable cutter frame is provided with at least one movable cutter. Each movable cutter form an included angle of 15 DEG to 35 DEG with the fixed cutter in installation. The movable cutter is in arc shape, and the arc surface is consistent with the rotating arc surface of movable cutter. The utility model has the advantages of low energy consumption, high efficiency and small size, and can be matched with a small four-wheel tractor and an agricultural three-wheel motorcar. The utility model is especially suitable for crushing wheat straws and corn stalks to feed back to field, and can crushing the wheat straws and the corn stalks while walking in the field.

Description

The cracker of returning crop stocks to the field

The utility model relates to a kind of agricultural machinery, is particularly suitable for the stalk crushing and returning after crops are gathered in the crops, and perhaps pulverizes forage grass.

A kind of straw size reduction machinery was arranged in the past, and it is made up of drive, charging aperture, stationary knife, moving knife etc., the moving knife on its stationary knife and the knife rest and straw the feeding direction vertical, moving knife and stationary knife are all linear.This machine can be pulverized straw effectively, but energy consumption height, efficient is low, the machine volume is big, especially be difficult for and the widely used tractor with small four wheels of Chinese countryside, the supporting use of three-wheel Agricultural automotive vehicle, can not be in the field, the edge of a field pulverizes the straw material with its power, this also is to burn one of major reason that the straw material remains incessant after repeated prohibition.

The utility model is intended to provide a kind of cracker of returning crop stocks to the field, and its energy consumption is low, the efficient height, the machine volume is little, can with tractor with small four wheels and the supporting use of agricultural three-wheeled motor vehicle.

Task of the present utility model is achieved in that the cracker of returning crop stocks to the field, it includes feed table, spout, drive and stationary knife, it is characterized in that: movable knife rack rotating shaft and feeding roller parallel, has a moving knife on the movable knife rack at least, each moving knife all is 15-35 degree horizontal sextant angle with stationary knife when installing, moving knife is curved, and cambered surface is consistent with moving knife slewing circle cambered surface.

It is low to the utlity model has energy consumption, the efficient height, the machine volume is little, can with tractor with small four wheels and the supporting use of agricultural three-wheeled motor vehicle, the chopping and returning of suitable especially wheat straw, corn straw is used.Also can be in the field while walking comminution process.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 turn 90 degrees structural representation for A-A of the present utility model to revolving.

Below in conjunction with accompanying drawing an embodiment of the present utility model is described in further detail.

Among the figure, 1. 7. times feedings of feeding roller roller 8. feeds platforms on drive 2. movable knife rack rotating shafts 3. moving knife 4. movable knife racks 5. stationary knifes 6.

Movable knife rack rotating shaft 2 and upper and lower feeding roller 6,7 parallel, and have a moving knife 3 on the movable knife rack at least, when each moving knife 3 is installed and stationary knife be 15-35 degree angle, moving knife 3 is curved, cambered surface is consistent with the slewing circle cambered surface of moving knife 3.Movable knife rack rotating shaft 2, down feed roller 6, on feed to drive when roller 7 all rotates by drive 1 and rotate.There is driving-belt to be connected on the drive 1 with output shaft on tractor with small four wheels or the three-wheel Agricultural automotive vehicle.

The course of work of the present utility model is: when drive 1 rotates, by gear drive drive movable knife rack rotating shaft 2, on feed roller 6 and down feeding roller 7 rotate simultaneously, at this moment, straw is pushed ahead from feeding platform 8, feed roller 6 and feeding roller 7 down, when straw is advanced to the place ahead of stationary knife 5, and moving knife 3 cuttings that are being rotated, because moving knife 3 and stationary knife 5 have the angle of 15-35 degree, moving knife 3 is an arc, and cambered surface is consistent with the arc surface that moving knife 3 rotates, so cutting is very laborsaving.

If the utility model is fixed on the front bumper of tractor with small four wheels by support, drive 1 is connected by belt with the belt pulley of tractor with small four wheels, then the utility model can with the tractor with small four wheels supporting operation, if be fixed on the utility model on the manger crossbeam of agricultural three-wheeled motor vehicle by support, power take-off on the tricycle gearbox is coupled together by belt and drive 1, can realize and the supporting pulverizing straw of agricultural three-wheeled motor vehicle material.

Claims (1)

1, the cracker of returning crop stocks to the field, it includes feed table, spout, drive and stationary knife, it is characterized in that: movable knife rack rotating shaft and feeding roller parallel, has a moving knife on the movable knife rack at least, each moving knife all is 15-35 degree angle with stationary knife when installing, moving knife is curved, and cambered surface is consistent with moving knife slewing circle cambered surface.