JP2588883Y2 - Adjusting structure of cutting edge position of disc cutter - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc cutter for cutting a culm discharged by threshing with a combine or a harvester and discharging the culm to a field.

[0002]

2. Description of the Related Art As is widely known, a disc cutter has a receiving blade axis and a cutting blade axis parallel to the inside of a frame of a cutter machine, and each axis is slightly longer than the culm length of the culm. The receiving blade and the cutting blade are arranged to face each other at a predetermined interval. The spacing between the receiving blade relative to the receiving blade shaft and the cutting blade relative to the cutting blade shaft is determined by interposing a member such as a collar between the receiving blades and between the cutting blades.

[0003]

In the disk cutter, the cutting action of the culm is not good unless the axial distance between the receiving blade and the cutting blade that are opposed to each other is so small as to be almost in contact with each other. For this reason, it is necessary to pay close attention to the arrangement interval of the receiving blade with respect to the receiving shaft and the arrangement interval of the cutting blade with respect to the cutting blade shaft, but the arrangement range of the receiving blade and the cutting blade is wide. Therefore, an error may occur at the time of assembling, and the interval between the receiving blade and the cutting blade in the axial direction may be widened and the sharpness may deteriorate. Therefore,
An object of the present invention is to make it possible to adjust the distance between the receiving blade and the cutting blade by a simple operation.

[0004]

Means for Solving the Problems A receiving blade shaft 2 in which receiving blades 1 are arranged at predetermined intervals in the axial direction and a cutting blade shaft 4 in which a cutting blade 3 is disposed opposite to the receiving blade 1 is connected to a cutter machine frame 5. In the disk cutter suspended in the inner bore of the cutter machine frame, the receiving blade shaft 2 is supported by the cutter machine frame 5 and the supporting members 6 and 7 supporting both ends of the cutting blade shaft 4 are located behind the cutter machine frame 5. The rear plate 8 is attached to the side plate 8, and the rear plate 8 is slidable in parallel to the axial direction of the receiving blade shaft 2 with respect to the cutter machine frame 5 so that the rear plate 8 can be fixed and the cutting plate located outside the support member 6. The drive connecting portion 9 at the end of the blade shaft 4 is connected to the rear plate 8.
Axial position adjusted by the power transmitting state with the slide
It was so that is an integer.

[0005]

According to the above construction, the supporting members 6, 7 for supporting both ends of the cutting blade shaft 4 on which the receiving blade shaft 2 is pivotally supported by the cutter machine frame 5 and the cutting blade 3 is disposed are provided on the rear plate. 8, if this rear side plate 8 is slid with respect to the cutter machine frame 5 in parallel to the axial direction of the receiving blade shaft 2, the axial spacing of the cutting blades 3 with respect to all the receiving blades 1 is changed. Will be. Therefore, if the rear side plate 8 is slid while looking into the gap between each of the receiving blades 1 and the cutting blades 3 in the cutter machine frame 5 so that the distance is not too wide, it becomes appropriate. And cutting blade 3
The cutting of the culm between the two becomes good.

The entire cutting blade shaft 4 moves in the axial direction as the rear plate 8 slides, but the position of the cutting blade shaft 4 in the axial direction is adjusted in a state in which a drive connection portion 9 provided at the shaft end of the cutting blade shaft 4 can transmit power. Therefore, the cutting blade shaft 4 is always driven to rotate even if the position changes. Thus, the gap between the receiving blade 1 and the cutting blade 3 can be adjusted.
Easy to do .

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A disk cutter according to the present invention is provided on support arms 11, 12 protruding laterally at the side of a cutter machine frame 5 so as to be mounted on a discharge side of a culm of a combine threshing apparatus 10.
The pins 13 and 14 of the threshing device 10 of the threshing device 10 are fixed to the support brackets 15 and 16 on the combine machine body side and protrude toward the front side of the cutter machine frame 5 on the side opposite to the support arms 11 and 12. It is locked and attached to the pin 18. The cutter machine frame 5 includes a front side plate 19, a rear side plate 8, and left and right side plates 2.
At 0 and 21, a hollow rectangular parallelepiped shape is provided. An upper plate 23 is provided at a portion other than the supply port 22 on the upper side, and a rectangular cylindrical guide case 24 is provided on the lower side. Reference numerals 25, 26, and 27 denote frames made of a rectangular tube material that strongly supports the cutter machine frame 5.

The upper supply port 22 of the cutter machine frame 5 is located below the end of the culm conveying device 28. The receiving blade shaft 2 and the cutting blade shaft 4 are horizontally arranged in the inner space of the cutter machine frame 5, and the receiving blade shaft 2 is pivotally supported between the left and right side plates 20 and 21 near the upper front near the culm transporting device 28. The cutting blade shaft 4 is supported by supporting members 6 and 7 attached to the rear plate 8 and is located below and below the receiving blade shaft 2. The receiving blade shaft 2 is provided with the receiving blade 1 and the rake plate 29 at predetermined intervals in the axial direction. The cutting blade shaft 4 is opposed to the receiving blade 1 and slightly overlapped in a side view. A cutting blade 3 is provided. A winding prevention collar is interposed between each receiving blade 1 and the scraping board 29 and between each cutting blade 3.

Before and after the culm supply port 22, a culm guide plate 3 is provided.
The 0,31 provided, so as to supply guides to the cut portion Hai稈falling from the end of Hai稈conveying device 28, also pivot 32,
The supply port 22 is opened and closed around the center 33. A power transmission unit that drives the receiving blade shaft 2 and the cutting blade shaft 4 is provided outside the left side plate 20 when viewed from behind the cutter machine frame 5. An input pulley 34 and a sprocket 35 are attached to a shaft portion of the cutting blade shaft 4 protruding outward from the left side plate 20, and power is transmitted by a belt 36 from the threshing device 10 side. A chain 38 is wound around the sprocket 35 between the sprockets 37 attached to the intermediate shaft 70, and the gear 39 attached to the intermediate shaft 36 is the gear 4 attached to the shaft end of the receiving blade shaft 2.
The transmission of power is performed by meshing with zero. 41
Is a tension sprocket.

The rear side plate 8 has a sufficient strength by welding the reinforcing plate 42, and has the mounting plates 4 on both left and right sides thereof.
3 and 44 are integrally attached, and a pin 45 is welded to one of the attachment plates 44 so as to be fitted into the frame 27 so as to be slidable left and right on a welded cylindrical shaft 46. Further, the other mounting plate 43 is rotatably pivotally supported by an adjustment shaft 47 having a screw portion formed at the tip, and the adjustment shaft 47 is rotatably supported by the adjustment shaft 4.
7 is screwed into a screw cylinder 48 welded to the frame 27. A handle 49 is attached to an end of the adjustment shaft 47 protruding laterally from the left side plate 20.
By rotating 9, the position of the rear side plate 8 with respect to the cutter machine frame 5 slides right and left. In addition, adjustment shaft 4
7 without protruding outward from the left side plate 20.
Formed on a square axis, the entire cutter frame 5 is
4 was pivoted rearward to remove the front side plate 19
Later, the distance between the receiving blade 1 and the cutting blade 3 from the inside of the cutter machine frame 5
Turn the adjustment shaft 49 using a tool while looking at
You may make it slide and adjust.

The locking device above the rear side plate 8 is constructed as follows. Fixing pins 50, 50 are projected inward at the rear upper positions of the left and right side plates 20, 21. The rear pins 8 project forward and can be fitted to the fixing pins 50 from the rear at the ends thereof. A fitting plate 51 forming a recess is fixed. Further, a pin 52 is projected from an intermediate portion of the fitting plate 51, and a pivot plate 53 that forms a locking portion that can be locked on the front surface of the fixed pin 50 at the tip of the pin 52 is pivotally supported. A winding spring 54 that elastically urges the rotating plate 53 in the locking direction is stretched between them.

The supporting members 6, 7 are attached to the mounting plates 43, 44 of the rear side plate 8 by bolts 55, 56, and the cutting blade shaft 4 is supported by the supporting members 6, 7. The space between the support member 6 on one side and the left side plate 20 is divided into a drive shaft 4a and a driven shaft 4b, and power is transmitted even when the driven shaft 4b moves in the axial direction as follows. A pawl clutch 57 is welded to the end of the driven shaft 4b, and the pawl clutch 57 is supported by a bearing 58 of the support member 6. Another pawl clutch 59 is attached to the driven shaft 4b side of the drive shaft 4a by spline fitting.
The sliding cylinder 61 is attached via the. This sliding cylinder 61
Is pressed by a pressing spring 62 so that the pawl clutch 59 is engaged with the pawl clutch 57 of the driven shaft 4b. Accordingly, when the sliding cylinder 61 to which the pawl clutch 59 is attached is moved to the left against the pressing spring 62, the pawl clutches 57 and 59 are disengaged, and the power transmission between the drive shaft 4a and the driven shaft 4b is cut off to allow separation. Becomes The drive shaft 4a is supported by a bearing 64 on a boss cylinder 63 attached to the left side plate 20.

Next, the fixing structure when the rear side plate 8 is rotated rearward will be described. The left and right sides of the frame 27 at the lower rear side of the cutter machine frame 5 are protruded upward and left and right sides. Lock pins 65, 65 bent toward
And the mounting plate 4 of the mounting plate 8 of the rear side plate 8.
3 and 44, arc-shaped regulating plates 66 are attached to the regulating plate 66.
Is inserted. When the cutting blade shaft 4 is rotationally driven by the belt 38 from the threshing device 10 via the input pulley 34, the cutting blade shaft 4 is transmitted from the sprocket 35 to the sprocket 37 of the intermediate shaft 36 via the chain 38, and via the gears 39 and 40. The receiving blade shaft 2 is driven to rotate. The culm discharged from the culm transport device 28 is supplied from the supply port 22 into the cutter machine frame 5, guided by the culm guide plates 30 and 31, and scraped by the receiving blade 1 and the scraping board 29. While being cut by the cutting blade 3 of the cutting blade shaft 4, it is discharged from the lower guide case 24 to the field.

[Brief description of the drawings]

FIG. 1 is a rear view.

FIG. 2 is a side view.

FIG. 3 is a side view in which a rear plate is rotated rearward.

FIG. 4 is a partial cross-sectional view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Receiving blade 2 Receiving blade shaft 3 Cutting blade 4 Cutting blade shaft 5 Cutter frame 6 Support member 7 Support member 8 Rear plate 9 Drive connection part

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A01F 12/40-12/40 303 A01F 29/00-29/22

Claims (1)

(57) [Scope of request for utility model registration] 1. A receiving blade shaft (2) in which receiving blades (1) are arranged at predetermined intervals in an axial direction, and a cutting blade shaft (4) in which a cutting blade (3) is disposed opposite to the receiving blade (1). ) Is horizontally mounted in the inner cavity of the cutter machine frame (5), the receiving blade shaft (2) is supported by the cutter machine frame (5), and both ends of the cutting blade shaft (4) are supported.
The supporting members (6) and (7) supporting the sides are attached to the rear plate (8) of the cutter machine frame (5), and the rear plate (8) is attached to the receiving shaft (2) with respect to the cutter machine frame (5). ) Is slidable in parallel with the axial direction of (2) to enable fixing and a support member (6).
Of the cutting edge axis (4) located outside the side discs axially located in a power transmission state along with the slide of the rear plate drive connection of the shaft end (9) (8) is formed by a so that the adjusted Adjustable cutter blade position adjustment structure.