JPH0567224U - Winding prevention plate for combine auger - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent the winding of combine harvester auger. [Composition] Behind the cutting blade (12) of the mowing part (8), the cutting blade (12)
Left and right spiral blades (16) (16) with the scraping auger (10) mounted on the left and right sides of the drum (15) of the scraping auger (10) In 17), it is conveyed to the front of the feed chamber (7) that is connected to the rear of the cutting section (8), and then the left and right spiral blades (16).
Retractable center fingers (18-3) (18-4) provided in front of the feed chamber (7) of the drum (15) between (17)
In the scraping auger (10) of the combine (A) configured to put the grain culms into the feed chamber (7) by the above, at a position where the center fingers (18-3) (18-4) are wrapped in a front view, In addition, a winding prevention plate (26) is provided on the outer periphery of the drum (15) so as to protrude from the inner ends (16a) and (17a) of the left and right spiral blades (16) and (17) in a front view, and the same winding is performed. The anti-stick plate (26) has a receding angle (θ) with respect to the drum rotation direction from the base end to the tip end of attachment to the drum (15).
Was established.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a winding prevention plate for a combine auger.

[0002]

[Prior Art]

 Conventionally, a combine auger is a left and right spiral blade in which a scraping auger is mounted on the rear of a cutting blade of a mowing unit in parallel with the cutting blade, and a grain culm cut by the cutting blade is provided on a drum of the auger. It is configured so that it can be transported to the front of the feed chamber that is connected to the rear of the mowing section, and then the grain culms can be fed into the feed chamber by a plurality of retractable fingers provided in front of the feed chamber of the drum. ing.

[0003]

[Problems to be solved by the device]

 However, if the harvested grain culms are too long or soft, the grain culm has a drawback that it obstructs the transportation and feeding of the grain culms wrapped around the drum finger parts into the feed chamber. there were.

[0004]

[Means for Solving the Problems]

 In this invention, a scraping auger is mounted behind the cutting blade of the cutting unit in parallel with the cutting blade, and the grain culms cut by the cutting blade are provided on the left and right spiral blades of the drum of the cutting auger. To convey the grain to the front of the feed chamber that is connected to the rear of the mowing section, and then use the retractable center finger provided between the left and right spiral blades to correspond to the front position of the feed chamber of the drum. In the combine scraping auger configured to be put into the feed chamber, the anti-winding plate is placed at a position where it overlaps with the above center finger in front view and at a position where it overlaps with the inner ends of the left and right spiral blades in front view. The winding preventive plate is provided on the outer periphery of the drum, and the winding preventive plate has a receding angle with respect to the drum rotation direction from the base end to the tip of the drum mounting. It is a thing.

[0005]

【Example】

 The embodiment of the present invention will be described in detail with reference to the drawings. In FIG. 1, (A) shows a combine, and a body frame (2) is mounted above a running part (1) consisting of a pair of left and right crawlers. A threshing section (3) and a sorting section (4) are arranged vertically on the left side of the upper surface of the frame (2), and on the right side there is a driving section (5) in the front and a gren tank (6) from the center to the rear. ) Is provided, and a mowing section (8) is vertically connected to the front of the frame (1) via a feed chamber (7).

The feed chamber (7) is installed between the front part of the threshing part (3) on the left side of the machine and the cutting section (8), and therefore the room (7) is located to the left from the center line of the machine. It is offset.

The cutting unit (8) connects a case (9) having a substantially open top to the front end of the feed chamber (7) to connect the inside of the case (9) and the inside of the feed chamber (7). While communicating with each other through the opening (19), the scraping auger (10) is horizontally mounted on the inside of the case (9) and rotated by the drive mechanism (11). ) Is attached to the front end of the cutting blade (12), the grass plate (13) is placed in front of the cutting blade (12), and the reel tine (14) is placed above the cutting blade (12). There is.

As shown in FIGS. 2 and 3, the scraping auger (10) includes a drum (15) connected to the drive mechanism (11) and left and right spiral blades (projected on the outer periphery of the drum (15). 16) (17) and a plurality of retractable fingers (18-1) (18-2) (18-3) (18-4) (provided at the front of the feed chamber (7) of the drum (15). 18-m), the left and right spiral blades (16) and (17) are installed from the left and right ends of the case (9) to the inside slightly in front of the opening (19). 16) (17) has the winding direction reversed. Further, since the feed chamber (7) is offset to the left, the left spiral blade (16) has a smaller width than the right spiral blade (17).

Each retractable finger (18-1) (18-2) (18-3) (18-4) (18-m) has a finger insertion hole (20) on the outer periphery of the drum (15). Insert the bushing (21) into the insertion hole (20), insert the finger body (22) into the bushing (21), and insert the inner end (22a) of the finger body (22) into the drum. The fixed crank (23) inserted in the (15) is rotatably supported by a crank pin (23a) which is eccentric to the lower side, so that the finger main body (22) rotates with the drum (15) while the finger main body (22) rotates. The outer end (22b) of () is substantially flush with the outer surface of the bushing (21) in the upper position, and is projected from the outer peripheral surface of the drum (15) by approximately twice the eccentricity in the lower position. Is configured.

The fixed crank (23) is an assembly type, and the crank pin (23a) and the crank journal (23b) axially supported on the center line of the drum (15) are connected to the crank web (23c). , And one end is fixed to the mowing part (8).

Such retractable fingers are provided at the left and right side fingers (18-1) (18-2) provided at the left and right ends of the drum (15) and at the front of the opening (19) of the feed chamber (7). The center fingers (18-3) (18-4), which are evenly distributed in the drum (15) corresponding to the right side finger (18-2) and the center finger (18-4). 18-4) and an intermediate finger (18-m) provided between the left and right spiral blades (16) and (17) and the center fingers (18a). -3) There is a slight overlap with the part where (18-4) is arranged.

A winding prevention plate (26) is provided on the outer periphery of the drum (15) of the left and right overlap portions (25) (25 '), and the winding prevention plate (26) is shown in FIGS. While wrapping with multiple center fingers (18-3) (18-4) in front view, as shown in Fig. 4, and also with the inner ends (16a) (17a) of the left and right spiral blades (16) (17) in front view. It is projected so as to wrap visually. The winding prevention plate (26) is fixed to the outer peripheral surface of the drum with the base portion (27a) of the mounting plate (27), and the tip portion (27b) is bent so that the tip portion (27b) is substantially square. A winding prevention plate (26) having a shape is continuously provided, and a receding angle (θ) of about 30 ° is given to the rotation prevention plate (26) with respect to the rotation direction of the drum (15). The protruding height (H) of the anti-stick plate (26) from the outer peripheral surface of the drum (15) is the retractable finger (18-1) (18-2) (18-3) (18-4) (18-m ) Is the range of 1/3 to 1/2 of the maximum protruding height (h) from the outer peripheral surface.

The embodiment of the present invention is configured as described above, and the grain culm cut by the cutting blade (12) is cut by the left and right spiral blades (16) (17) of the scraping auger (10) into the case ( It is scraped toward the front of the feed chamber (7) of 9) and put into the feed chamber (7) by the retractable fingers (18-3) (18-4) and the winding prevention plate (26). The wrapping prevention plate (26) overlaps with the center fingers (18-3) (18-4) provided in front of the feed chamber (7) in front view, and the left and right spiral blades (16) Since it is placed so as to wrap with the inner ends (16a) (17a) of (17) when viewed from the front, the left and right spiral blades (16) (17) of the feed chamber (7) are not provided in the front part. There is no hindrance to the action or the grain culms are thrown out to the outside, and in the front of the feed chamber (7), the grain culms are prevented from being wound, and the receding angle (θ) is provided to make the grain culms To the outside of the drum (15) Are auxiliary the take-action formula of the finger (18).

In addition, the protrusion height of the left and right winding prevention plates (26) and (26) from the outer peripheral surface of the drum (15) is defined by the retractable fingers (18-1) (18-2) (18-3) (18). -4) By setting the range of 1/3 to 1/2 of the maximum protruding height of (18-m), the above-mentioned grain culm pushing action becomes excessive and the grain culms are pushed out upward or forward. Prevents defects.

[0015]

[Effect of the device]

 According to this invention, in the drum of the scraping auger, it is positioned so as to wrap with the retractable center finger provided in front of the feed chamber in a front view and to wrap with the inner ends of the left and right spiral blades in a front view. Since the winding prevention plate is projected on the outer circumference of the drum, that is, the winding prevention plate is projected on the outer circumference of the drum over the portion where the center fingers are arranged and the inner end positions of the left and right spiral blades. The anti-winding plate does not interfere with the feeding action of the left and right spiral blades and the action of inserting the center finger, and the swivel prevention plate has a receding angle, so that the rotation of the drum separates the culm from the drum. It can be pushed out in the direction to enhance the effect of preventing wrapping, and can also assist the throwing of culms into the feed chamber.

[Brief description of drawings]

FIG. 1 is an overall side view of a combine having a winding prevention plate according to the present invention.

FIG. 2 is a plan view of the scraping auger (partially cut away).

FIG. 3 is a sectional view taken along the line I-I in FIG.

FIG. 4 is a sectional view taken along the line II-II in FIG.

[Explanation of symbols]

 (A) Combine (θ) Sweeping angle (7) Feed chamber (8) Mowing section (10) Scraping auger (12) Cutting blade (15) Drum (16) Left spiral blade (17) Right spiral blade (16a) Inside Edge (17a) Inner edge (18-1) Left side finger (18-2) Right side finger (18-3) Center finger (18-4) Center finger (26) Winding prevention plate

Claims (1)

[Scope of utility model registration request] 1. A cutting blade (12) at the rear of the cutting blade (12).
Left and right spiral blades (around the drum (15) of the scraping auger (10) with the scraping auger (10) mounted in parallel with the scraping auger (10) 16) It conveys to the front of the feed chamber (7) which is connected to the rear of the mowing section (8) at (17), and then the left and right spiral blades.
(16) (17) between the retractable center fingers (18-3) (1) provided in front of the feed chamber (7) of the drum (15).
In the auger (10) of the combine (A) configured to throw the culm into the feed chamber (7) by 8-4), wrap it with the center fingers (18-3) (18-4) in front view. And the inner ends (16a) (17a) of the left and right spiral blades (16) (17)
The winding prevention plate (26) at the position where it wraps in front view with the drum (1
5) The winding prevention plate (26) is provided on the outer periphery of the combiner, and the anti-winding plate (26) is provided in the scraping auger of the combine, which has a receding angle (θ) with respect to the drum rotation direction from the base end to the tip of the drum (15). Winding prevention plate.