JPH0948A - Combine harvester grain culm feeder - Google Patents

Abstract

(57) [Summary] [Purpose] It is possible to effectively feed the culm culm from the rear part of the movable reaping part by the leaf spring guide inheritance guide so that spillage does not occur on the leading end side of the threshing part feed chain. And [Structure] The cutting unit A is provided so as to be vertically movable by rotating the cutting unit A around the cutting fulcrum shaft cylinder 1 in front of the threshing unit B.
In a combine constituted by extending a leaf spring guide 3 for grain culm inheritance from the rear part above the feed chain 2 starting side of the threshing part B, the axis O ₁ of the reaping fulcrum shaft cylinder ₁ is the feed. The harvesting fulcrum shaft cylinder 1 is mounted in the front direction of the threshing part B so that it is located behind and above the axis O ₂ of the support wheel 4 on which the start end side of the chain 2 is hooked, and the leaf spring The base end of the guide 3 is pivotally supported on the frame 5 of the mowing portion A about a fulcrum shaft 6 and a torque for elastically biasing the leaf spring guide 3 downward is provided at the fulcrum shaft 6. The spring 7 is provided in between.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing section grain culm of a combine for feeding a grain culm root from a rear portion of a vertically movable cutting section to a leading end side of a feed chain of a threshing section by inheritance guide of a leaf spring guide. Regarding the feeding device.

[0002]

2. Description of the Related Art Conventionally, a mowing section is provided so as to be movable up and down by rotating about a mowing fulcrum shaft cylinder in front of a threshing section, and at the rear end of the mowing section, a grain culm is received above a starting end of a feed chain of the threshing section. in combined be configured to extend the plate spring guides for splicing, as shown in FIG. 6, in the vicinity below the axis O ₂ of the supporting wheel 4 axis O ₃ is hooked to the start end of the feed chain 2 The cutting fulcrum shaft cylinder 1 is mounted so as to be positioned, and the base side of the leaf spring guide 3 is fixed to the frame 5 of the cutting unit.

[0003]

However, when the machine moves around on the headland side of the field and the cutting section moves upward while rotating around the cutting support shaft cylinder 1, the base side of the leaf spring guide 3 is
The cutting chain is raised so as to approach the starting end side of the feed chain 2 along a concentric circle C ₂ centered on the axis O ₃ of the cutting fulcrum shaft cylinder 1, and moreover, the leaf spring guide 3 is fixed to the frame 5 and is fed to the feed chain. Since it is strongly pressed so as to invade the upper surface of the feed end 2 of the feed chain 2, the leaf spring guide 3 is deformed largely irregularly as shown by phantom lines (a) and (b) of FIG. When the aircraft is traveling, the grain culm supplied from the mowing section to the threshing section will drop off and spillage will occur,
It has such a problem.

[0004]

The present invention solves such a problem, and effectively applies the culm of the grain culm from the rear part of the reaping part to the leading end side of the feed chain of the threshing part by the inheritance guide of the leaf spring guide. Therefore, the mowing section is provided rotatably around the mowing fulcrum shaft cylinder in front of the threshing section so as to be movable up and down, and from the rear part of the mowing section to above the starting end side of the feed chain of the threshing section. In a combine that is configured by extending a leaf spring guide for grain stalk inheritance, the axis of the cutting fulcrum shaft cylinder is behind the fuselage from the axis of a support wheel that hooks the starting end side of the feed chain, And to pivot above the cutting fulcrum shaft cylinder in the front direction of the threshing section, while pivotally supporting the base side end of the leaf spring guide on the frame of the cutting section about the fulcrum axis. A leaf spring guide is attached to the fulcrum shaft. It is constructed by interposing a torque spring for repression bias in a square side.

[0005]

Therefore, at the time of mowing work, the leaf spring guide can be pressed by the torque spring against the upper surface of the starting end side of the feed chain, and the stem of the grain can be inherited and guided from the mowing section side to the starting end side of the feed chain. In addition, when the reaping unit rises while turning around the cutting fulcrum shaft cylinder when the aircraft travels on the headland side of the field, the base side of the leaf spring guide is centered on the shaft center of the cutting fulcrum shaft cylinder. The leaf spring guide is lifted along a concentric circle so that it does not approach the starting end side of the feed chain, and the base side of the leaf spring guide is pivotally supported by the fulcrum shaft and pressed downward by the torque spring. On the upper surface of the start side of the feed chain without significant deformation,
It will be pressed well so as not to open in the meantime,
It is possible to effectively inherit and guide the culm of the grain culm from the rear part of the reaping unit so as not to cause spillage on the starting end side of the feed chain.

[0006]

1 to 4, FIG. 1 is a side view schematically showing a combine, in which a threshing section B equipped with a handling cylinder 10 and the like is mounted on a machine base 9 supported by both crawlers 8. On the outer side of the threshing portion B, a feed chain 2 which is mounted on a support wheel 4 at the starting end side extending forward and is driven by a drive sprocket 11 in the rearward direction of the support wheel 4 is stretched. An operation unit such as a driver's seat 15 is provided in front of a Glen tank 14 having a grain discharge cylinder 13 mounted on the right lateral side of the threshing unit B, in which an elastic culm 12 that is pressed downward is installed over the upper part. Then, the structure is the same as the conventional structure.

[0007] A cutting section A equipped in front of the threshing section B
Like the conventional structure, each of the sward plates 16, the raising cases 17, the cutting blades 18, the star wheels 19, the lower transfer chains 20, the scraping belts 21, the upper transfer members 22, the auxiliary transfer members 23, and the vertical members. Transport chain 24, gate-shaped cutting sensor pipe 25
Etc., and has a cutting input shaft rotatably mounted on a bearing 27 on a mount 26 in the front direction of the threshing part B, and drives the drive sprocket 11 from a transmission case 28 on the rear end side. Is supported by a harvesting transmission cylinder 29 extending from the harvesting fulcrum shaft cylinder 1, and the hydraulic cylinder 3
The cutting unit A is rotated about the cutting fulcrum shaft cylinder 1 so as to be movable up and down by 0. As shown in FIG. 3, the axial center O ₁ of the cutting fulcrum shaft cylinder 1 is The cutting fulcrum shaft cylinder 1 is axially mounted in the front direction of the threshing part B so as to be positioned behind and above the machine body from the axis O ₂ .

On the lower surface of the end of the frame 5 extending toward the starting end side of the feed chain 2 from the left side fixed bracket 31 that supports the cutting sensor pipe 25 of the cutting section A, one end of the fulcrum shaft 6 which is in the horizontal direction is provided. A cylinder 32 having a support piece 32a on the rear side is fixedly mounted on the other end of the fulcrum shaft 6, and a torque spring 7 for elastically pressing the support piece 32a downward is provided at an intermediate portion of the fulcrum shaft 6. The end of the leaf spring guide 3 on the front base side, which is interposed and whose rear portion extends onto the upper surface on the starting end side of the feed chain 2 and in which the mountain-shaped bent portion 3a is formed in the middle portion, is provided on the supporting piece 32a. Both bolts and nuts 3 according to the upper surface of
3, and a stock prepayment rod 34 is installed in the vicinity of it in the same manner as in the conventional structure, but the spring load of the torque spring 7 can press the maximum amount of passing grain culms. 3 is configured so as to be larger than the spring load of itself.

Therefore, during the reaping work, the leaf spring guide 3 is pressed against the upper surface of the feed chain 2 by the torque spring 7 and the grain stems are satisfactorily received from the reaping section side to the start side of the feed chain 2. It is possible to guide you to connect.

When the cutting section A rotates around the cutting fulcrum shaft cylinder 1 and rises while the machine body travels on the headland side of the field, the portion of the fulcrum shaft 6 on the base side of the leaf spring guide 3 becomes As shown in FIG. 3, the cutting fulcrum shaft ₁ is raised along a concentric circle C ₁ about the axis O ₁ of the cutting cylinder 1 as shown by an imaginary line so as not to approach the starting end side of the feed chain 2, and the plate Since the base side of the spring guide 3 is pivotally supported by the fulcrum shaft 6 and is pressed downward by the torque spring 7, the leaf spring guide 3
Is not deformed significantly and is pressed well against the upper surface of the feed chain 2 at the starting end side so that the space between them is not opened, so that the grain culm is prevented from spilling from the rear part of the cutting section A to the starting end side of the feed chain 2. It is possible to effectively guide the successor of 翈 元.

FIG. 5 shows another example of a part of the combine, which has substantially the same structure as that of the above embodiment as indicated by the same reference numeral, but both crawlers 8 can be driven. The transmission section 35 equipped with a hydrostatic transmission mechanism (referred to as HST) includes an engine 36 and a belt pulley 3
7, the output pulley 39 of the transmission section 35 is attached to the input pulley 38 on one end side of the harvesting fulcrum shaft cylinder 1 which is mounted on both bearings 27, one of which is integrated with the transmission case 28. The other end side of the mowing input shaft 41 in the mowing fulcrum shaft cylinder 1 is mounted on the chain drive shaft 4 in the transmission case 28 for driving the driving sprocket 11.
2, the upper transmission shaft 44a and the lower transmission shaft 44b, which are connected to each other via the two bevel gears 43, are separated from each other in the cutting transmission cylinder 29, and the upper transmission shaft 44a and the cutting input shaft 41 are separated from each other. A claw clutch type reaping clutch 47 is interposed between the bevel gear 46 fixed to the tip of the lower transmission shaft 44b and the end portion of the upper transmission shaft 44a, which is transmission-coupled via both bevel gears 45. A bevel gear 49 on one end side of a transmission shaft 48 in a transmission cylinder 29a connected to the cylinder 29 is meshed with the bevel gear 46 to drive the drive sprocket 22a of the upper carrier 22 and the drive sprocket 23a of the auxiliary carrier 23 and the power shaft 48. The other end is connected by transmission through both bevel gears 50.

Therefore, the feed chain 2 can be synchronized with the mowing speed, or the mowing unit can be stopped to perform the manual operation.

[0013]

As described above, according to the present invention, during mowing work,
The leaf spring guide 3 is fed by the torque spring 7 to the feed chain 2
While pushing on the upper surface of the starting end side, it is possible to favorably guide the culm of the grain culm to the starting end side of the feed chain 2 from the mowing section A side, and the machine rotates on the headland side of the field. At this time, when the cutting unit A is raised while rotating around the cutting fulcrum shaft cylinder 1, the base side of the leaf spring guide 3 is fed along the concentric circle centered on the axis O ₁ of the cutting fulcrum shaft cylinder 1. Of the leaf spring guide 3, and the base side of the leaf spring guide 3 is pivotally supported by the fulcrum shaft 6 so that the torque spring 7 is not moved.
Since the leaf spring guide 3 is pressed downward by, the leaf spring guide 3 is not largely deformed,
It will be pressed well so as not to open in the meantime,
The culm of the grain culm can be effectively inherited and guided from the rear part of the reaping part A to the beginning end side of the feed chain 2 so as not to spill, and it has a feature that it can be suitably implemented with a simple structure.

[Brief description of drawings]

FIG. 1 is a side view schematically showing a combine.

FIG. 2 is a side view schematically showing a part of a mowing unit.

FIG. 3 is a side view showing a main part of the embodiment of the present invention.

FIG. 4 is a plan view showing the upper surface of FIG.

FIG. 5 is an explanatory diagram showing another example of a part of the combine.

FIG. 6 is a side view showing a conventional example.

[Explanation of symbols]

A Mowing part B Threshing part 1 Mowing fulcrum shaft cylinder 2 Feed chain 3 Leaf spring guide O ₁ , O ₂ Axis center 4 Support ring 5 Frame 6 fulcrum shaft 7 Torque spring

Claims (1)

[Claims] 1. The reaping section A is provided so as to be vertically movable by rotating around the reaping fulcrum shaft cylinder 1 in front of the threshing section B, and above the starting end side of the feed chain 2 of the threshing section B from the rear part of the reaping section A. In a combine configured by extending a leaf spring guide 3 for inheriting a grain culm, an axis O of the cutting fulcrum shaft cylinder 1
_The cutting fulcrum shaft cylinder 1 is mounted in the front direction of the threshing part B so that 1 is located behind and above the axis O ₂ of the support wheel 4 on which the starting end side of the feed chain 2 is hooked. Then, the end of the leaf spring guide 3 on the base side is attached to the frame 5 of the cutting section A.
Is rotatably supported about the fulcrum shaft 6, and a torque spring 7 for elastically urging the leaf spring guide 3 downward is interposed at the fulcrum shaft 6 portion. Thresher culm feeder.