JPS5820097Y2 - Threshing culm cutter device - Google Patents

Description

[Detailed description of the invention] This invention relates to a threshing culm cutter device that shreds threshed culm, and particularly relates to a cutter device in which a plurality of circular saw-shaped cutting blades 13 are arranged on a rotating shaft 11. is provided at the culm discharge port of the threshing device 1, and the culm discharge pipe of the cutter is provided with a blade 19 only on the end side of the rotating shaft 11 in the mouth.

In general, a cutter is known that uses a plurality of circular saw-shaped cutting blades provided on a rotating shaft to receive and shred the threshed culm substantially parallel to the rotating shaft.

By the way, when cutting a waste culm with this type of cutter, the waste culm received approximately parallel to the rotating shaft is shredded at the center of the rotating shaft in accordance with the spacing between the cutting blades. ,
The cutting length is not constant at the end of the rotating shaft.

Therefore, in the past, in the case of a particularly long culm, the cutting length at the end of the rotating shaft became long, and the long cut culm was cut into the culm discharge port side machine frame of the threshing device or the culm pipe of the cutter. There was a problem in that it was caught in a bridging manner between the mouth side machine frame, etc. and the rotating shaft, and did not fall downward.

This device was devised in view of the above-mentioned problems, and it ensures the long cut culm that is caught in a bridging manner between the end of the rotary shaft of the cutter and the culm discharge port side machine frame of the threshing device. To provide a threshing culm cutter device in which the cut culm as a whole can be surely dropped by dropping the cut culm.

Hereinafter, a preferred embodiment of this invention will be described in detail based on the accompanying drawings.

1 is a threshing device placed on the traveling devices 3, 3 of the combine harvester.

Reference numeral 5 denotes a housing of a cutter provided at the culm discharge port γ at the rear of the threshing device 1, and the threshed culm is sent by conveyors 9, 9.

Reference numeral 11 denotes a rotating shaft rotatably supported in the housing 5 in a horizontal direction perpendicular to the feeding direction of the culm, and a plurality of circular saw-shaped cutting blades 13 13 are arranged at appropriate intervals. ...is fixed.

Reference numeral 15 denotes a rotor rotating shaft that is rotatably supported in the housing 5 at an upper position parallel to the rotating shaft 11, and the cutting blades 13, 1
3. A plurality of rotors 17, which feed the culms to the cutting blades 13°13, .
1γ.

...is fixed.

Reference numeral 19 indicates that the cutter's discharge tube is the rotary shaft 11 in the mouth. In other words, the cutting blades 13, 13 . It rotates with...

21 is a suction port provided at a position corresponding to the blade 19 on the side wall 200 of the casing 5 on the side of the blade 19; 23 is a suction port provided at a position below the blade 19 from the lower end of the suction port 21 in an arcuate manner extending diagonally downward; This is a blow guide plate which directs the direction of the wind generated by the blades 19 to the side opposite to the uncut portion side.

Reference numeral 25 denotes a discharge port through which the culms cut by the cutting blades 13, 13°, etc. are discharged downward, and the left and right traveling devices 3
, 3 is provided at the bottom of the housing 5 at a position almost directly above the housing 5.

Therefore, the air guide plate 23 extends on one side l of the outlet 25 below the blade 19.

2γ is a wire mesh provided at the suction port 21.

Note that the rotating shaft 11 and the rotor rotating shaft 15 are driven by a power source by appropriate means.

In the above configuration, when performing work, each part of the combine is driven, and the rotating shaft 11. The rotor rotation shaft 15 is rotated in the direction of the arrow in FIG.

The husks threshed by the threshing device 1 and the conveyors 9, 9
The culm pipes of the cutter are fed in parallel horizontally through the culm discharge port γ and into the housing 5 through the mouth.

The culm sent into the housing 5 is moved by rotors 17, 1γ,
The cutting blades 13, 13, . . . are fed into the cutting blades 13, 13, .
13. It is cut to a size corresponding to the spacing between...

In this case, since there is no blade in the center of the rotating shaft 11,
The cut culm does not wrap around the blade 19.

Further, the shaft end of the rotating shaft 11 is cut into irregular dimensions depending on the entire length of the culm.

In particular, when the culm is long, the cutting length of the shaft end of the rotating shaft 11 becomes long, and the cut culm with this long dimension is
1 and the culm discharge port side machine frame of the threshing device 1 or the cutter's culm discharge pipe tend to be caught in the form of a bridge between the culm discharge port side machine frame of the threshing device 1 and the mouth side machine frame.

However, it is either directly brushed away by the blades 19, or blown away by the wind generated by the blades 19, and falls reliably without being caught on the machine frame or the like.

The cut culm falls directly below the cutting position from the discharge port 25 at the bottom of the housing 5 and is discharged outside the machine, but at this time, the wind force of the fan 19 sent along the ventilation guide plate As a result, the culms are blown toward the opposite side of the uncut portion and fall downward from the discharge port 25.

That is, the culm falls within the distance between the travel tracks of the left and right travel devices 3°3.

Therefore, the cut culms will not fall into the rows of uncut areas.

According to the configuration of this invention described above, it is possible to reliably drop the long cut culm that is caught in a bridging manner between the machine frame on the side of the culm discharge port of the threshing device and the rotating shaft.

In addition, since the blades are provided only on the end side of the rotating shaft, the cut culm does not wrap around the center of the rotating shaft, and can be dropped smoothly.

Therefore, the cut culm as a whole can be extremely securely dropped.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is an explanatory front cross-sectional view of the main parts of the present invention, and FIG. 2 is a side cross-sectional explanatory view. Explanation of symbols representing main parts of the drawings: 1... Threshing device, 11... Rotating shaft, 13... Cutting blade body, 19...
・Feathers.

Claims (1)

[Scope of utility model registration request] A cutter in which a plurality of circular saw-shaped cutting blades 13 are arranged on a rotary shaft 11 is installed at the culm discharge port of the threshing device 1, and blades are installed only on the end side of the rotary shaft 11 in the culm receiving port of the cutter. Threshing culm cutter device equipped with 19.