JPH11253032A - Culm raising device in combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To aim at the light weight by simplifying a mounting constitution of a weed separating rod at the front side of a culm raising up device in a combine harvester. SOLUTION: This culm raising device in a combine harvester is provided by interlocking a driving shaft for raising 13 for driving a driving sprocket 12 at the lower end part of the culm raising up device from a reaping transmission case 14 at the rear side over to the front side in the vicinity of the upper side of reaping blade 4, and mounting a weed separating rod 1 positioned at the front side of the culm raising up device at a raising up transmission case 10 covering the raising up device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain stalk raising device for a combine or a reaper.

[0002]

In a mowing device having a cereal stem raising device, a raising drive shaft for transmitting the raising device has a configuration different from that of a weeding rod, and a main body of a mowing transmission case or the like. The supporting structure of the cereal stem raising device and the weeding rod is complicated and heavy.

[0003]

According to the present invention, the raising drive shaft 13 for driving the driving sprocket 12 at the lower end of the grain stalk raising device 2 is moved from the rear cutting transmission case 14 to the upper side of the cutting blade device 4. The drive shaft 13 is interlocked in the forward direction.
Of a combine culm raising device in which a weeding rod 1 located on the front side of the cereal culm raising device 2 is attached to a motive transmission case 10 covering the culm.

[0004]

According to the present invention, during the mowing action, weeding is performed by the weeding rod 1 and the cereal culm is raised by the cereal culm raising device 2 and cut by the rear cutting blade device 4. The transmission of the cereal stem raising device 2 is driven from a rear cutting transmission case 14 through the upper side of the cutting blade device 4 and via a raising drive shaft 13 which interlocks a driving sprocket 12 below the front cereal stem raising device 2. However, since the weeding rod 1 is mounted by using the raising transmission case 10 that covers the raising driving shaft 13, the mounting connection interval of the weeding rod 1 can be shortened to provide a stable support structure. The configuration can be simplified and reduced in weight.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A combine is mounted on a vehicle body 6 having a crawler traveling device 15 on a grain stem raising device 2 and a cutting blade device 4.
The reaping frame 8 of the reaping device 5 having the above-mentioned structure is supported via the reaping suspension bracket 7 so as to be able to move up and down. At the rear of the cutting frame 8 is provided a grain culm transport device including a stock carrier transport device 16 and a spike transport device 17 for transporting the harvested grain culm. At the rear of the vehicle body 6, a threshing chamber 18 equipped with a handling cylinder, a feed chain 20 and a clamping rod 21 along a grain culm transfer port 19 of the threshing chamber 18, and a threshing material threshed in the threshing chamber 18 are received. The sorting room 22 is equipped with a rocking sorting shelf that sorts while rocking and transporting, and a sorting chamber 22 that sends sorting wind to the sorting air passage, and has a culm device that discharges threshed culm and has a suction duster. A threshing device 24 including a dust chamber 23 and the like for discharging the sorted dust out of the machine is mounted.

[0006] On one side of the vehicle body 6, from the front to the rear, the control table 9, the step floor 25, the cockpit 26,
Engine cover 27 that covers the engine room, threshing device 2
A Glen tank 28 for accommodating grains transported from the sorting chamber 22 of No. 4 and a vertical grain auger 29 and a horizontal grain auger 30 for discharging the grains of the Glen tank 28 are provided.

At the center of the front end of the vehicle body 6, a transmission case 31 is provided, and a transmission mechanism for inputting power from an engine and outputting sprocket shafts 32 on both lower sides through a transmission and the like is provided therein. The cutting suspension bracket 7 shares the transmission case 31 with a suspension metal 33 at the upper end to suspend the upper end of the tubular cutting frame 8 so as to be freely rotatable up and down. And a telescopic cylinder 34 can be provided between them to move up and down. The star wheels 11 and 43 can bite each other to scrape the culm.
The drive of the single shaft 69 causes the other star wheels 11, 43 to bite and rotate.

A swing case 34 is provided at the front lower end of the cutting frame 8 so as to be horizontally rotatable to the left L and the right R. Outside the swing case 34, the swing case 34 projects outward from the cutting frame 8. A swing arm 36 that is horizontally rotatable to the left L and the right R via a sub-frame 35 is provided.
Between the right and left cutting power transmission case 14
It is connected and supported by the part. Reference numeral 39 denotes a rotation shaft of the swing case 34 with respect to the cutting frame 8, and reference numeral 40 denotes a rotation shaft of the swing arm 36 with respect to the sub-frame 35. By pushing and pulling the reaping transmission case 14 to the left L and the right R, the reaping transmission case 14 can be moved to the left L and the right R almost in parallel via the parallel link-shaped swing case 34 and the swing arm 36.

A reciprocating cutting blade device 4 is provided along the front side with the cutting transmission case 14 as a main body, a pair of left and right main star wheels 11 and a small-diameter sub-star wheel 43 located on the front side. And a grain stalk raking device 3 comprising a guide rod, a guide plate 42 and the like. The pair of left and right grain stem raising devices 2 are provided with raising tines 46 on a chain 45 that is vertically extended inside a raising case 44, and slide the base of each raising tine 46 to a tine guide 47. By moving it, it protrudes out of the raising case 44 in the ascending stroke to scrape up the cereal stem and raise it to a certain posture.

The raising case 44 has a lower end connected to the front end of a tubular raising transmission case 10 projecting forward from both left and right ends of the mowing transmission case 14. 48
Is a raising support frame along the rear side of the raising transmission case 10. The upper end supports the upper part of the raising transmission case 10, and the lower end is fixed to the raising transmission case 10. The motive power transmission case 10 is provided as low as possible so as to contact the upper side of the front cutting blade device 4,
The drive sprocket 12 for driving the raising chain 45 at the lower end of the raising case 44 is provided at the front end of the driving sprocket 12.

The raising case 44 has a counter sprocket 61 and a driving sprocket 12 vertically mounted on shafts 62 and 1.
And a guide roller 63 for guiding the lower end of the raising chain 45 to the inside of the drive sprocket 12 at the lower end.
Are mounted on a shaft 64, and these sprockets 61, 12
The drive sprocket 12 can rotate by pulling the raising chain 45 around the roller 63. 65 is Tine 4
The protruding tine 46 is formed by the protruding tine guide grooves 6.
Is raised and protruded downward at a position guided by the guide roller 63 at the lower end of the raising case 44, and is maintained in a raising posture while being guided by the tine guide 47 and moving to the upper end.

The guide roller 63 is formed with a roller groove 66 for guiding the raising chain 45 on the peripheral surface of the central portion. The roller groove 66 allows the rotary peripheral portion of the drive sprocket 12 to intervene and rotate. By the rotation of the drive sprocket 12 itself, straw dust, dust and the like to be wound around or accumulated on the roller groove 66 are scraped and removed. At the upper end of the raising case 44, a [] -shaped soundproof rubber 67 is provided so as to cover the upper peripheral portion of the counter sprocket 61, and the raising tine 46 that is going to turn from the raising passage to the back side by centrifugal force is provided. Contact and buffer. 68 is this soundproof rubber 67
And is attached to the upper end of the raising case 44.

A pair of left and right main star wheels 1
No. 1 is capable of interlocking the opposing portions with each other, sandwiching the raked collecting and feeding culm between the interlocking portions, and sending the stem from the front side to the rear side.
These left and right main star wheels 11 only need to transmit and rotate the shaft 69 or 70 on one side, and the other main star wheel 11 is rotated by the occlusion. The main star wheel 11 is a front-downward inclined rotating surface, and its left and right outer peripheral portions intersect with the front-upward-inclined power transmission case 10 in plan view. At this intersection C, the main star wheel 11
The side is located above the drive transmission case 10 and is approached.

The sub-star wheel 43 is smaller in diameter than the main star wheel 11, is occlusally rotated to each rear side, and also engages between the sub-star wheels 43. A quadrilateral guide plate 42 is provided above the left and right sub-star wheels 43 and is supported by a lower central portion grass frame 49. The outer peripheral edges of the rotation of the sub-star wheel 43 protrude from both left and right sides of the guide plate 42, and the stalks are gathered between the main star wheel 11 and the main star wheel 11 while being scraped. Send. The rear end of the guide plate 43 covers the delta portion D of the blind spot between the rotations of the respective star wheels 11 and 43 so that the collecting operation can be performed accurately. The guide rod 41 is made of a spring material, has a front end attached to the propulsion transmission case 10, and extends rearward through an upper side of the main star wheel 11.

The root portion of the cereal stem raised by the cereal stem raising device 2 is guided by the outer raising transmission case 10 and the upper guide rod 41, and is guided by the inner guide plate 42 for weeding. At the rear side, the inner sub-star wheel 43 and the rear outer main star wheel 11 scrape and collect the paper toward the center rear side. The weeding rod 1 at the lower front end of the cereal stem raising device 2 is a socket integrally provided at the front end of a raising transmission case 10 of a raising drive shaft 13 that works with the driving sprocket 12 at the lower end of the cereal rod raising device 2. It is detachably attached to the tube 71. This socket tube 71 is bent in an elbow shape toward the lower front part, and a sled rod 7 having a sled 73 at the lower end of the weeding rod 1 is formed.
2 Insert the rear end and tighten it with 74 bolts.

Since the drive transmission case 10 is located at the lower part, the shortest distance between it and the weeding rod 1 is connected by the socket tube 71 and the sled rod 72. The stable mounting grass position can be maintained even under the resistance of grass. In FIG. 11, the difference from the above example is that when the auxiliary weeding device 75 is attached to the front side of the cereal stem raising device 2,
The connection between the socket tube 71 at the lower part of the grain stalk raising device 2 and the sled rod 76 of the auxiliary weeding device 75 via the vibration isolating rubber 77 absorbs the vibration of the auxiliary weeding device 75. .

The auxiliary weeding device 75 includes a raising case 78
Is arranged in front of and outside of the raising case 44 and is supported, and the raising chain having the raising tine 79 vertically extended inside is driven from the sprocket side at the upper end. The lower end of the raising case 78 on the sprocket shaft 80 side at the lower end is connected to a weeding rod 82 and a sled rod 76 having a sled 83 by bolts 81.
The raising tine 79 protrudes to the front side during the ascending stroke, lifts the grain stalks, and weeds the grass culm. Then, the raising tine 79 is retracted into the raising case 78 during the lowering stroke. Reference numeral 84 denotes a cereal stem guide rod provided from the rear lower end of the raising case 78 to the front surface of the rear raising case 44.

A sled rod 76 for the socket tube 71
The mounting structure of the sled rod 76 is an insertion portion 85 for the socket tube 71, and a pin 86 at the rear end of the sled rod 76.
, A mounting ring 87 is fitted with a rubber ring made of a vibration-proof rubber 77 interposed therebetween, and tightened with a bolt 88 to prevent the fixing from coming off. The mounting stay 87 attached to the sled rod 76 in this manner is fixed to the socket tube 71 with the bolt 89. Vibrations are generated between the cereal stem raising device 2 and the auxiliary weeding device 75 due to the reaction force of the induced weeding and the like, and the mutual vibrations are absorbed by the vibration isolating rubber 77 and can be reduced. .

The sprocket shaft at the upper end of the raising case 78 is connected to the sprocket 61 shaft 62 (FIG. 6) at the upper end of the raising case 44 on the grain stem raising device 2 side by a coupling or the like. Install the top of 75. In a field where the degree of lodging of the cereal culm is remarkable, an auxiliary weeding device 75 is attached to the front side of the cereal cultivation raising device 2, and while the culm is raised and weeded by the raising tine 79, the inside of the left and right raising cases 78 The culm for guiding weeding is raised by the raising tine 46 on the rear side.

[Brief description of the drawings]

FIG. 1 is a plan view of a mowing device and a partial rear view thereof.

FIG. 2 is a plan view showing the operation.

FIG. 3 is a side view of the reaper unit.

FIG. 4 is a perspective view of a mowing device frame portion and a perspective view of a transmission mechanism portion thereof.

FIG. 5 is a front view of the lower part of the cereal stem raising device.

FIG. 6 is a side view of the upper part of the grain stalk raising device and a front view of a part thereof.

FIG. 7 is an enlarged plan view of the grain stem scraping device.

FIG. 8 is a left side view of the combine.

FIG. 9 is a right side view thereof.

FIG. 10 is a front view of a grain stem raising device and a weeding rod portion, and an enlarged side view of a part thereof.

FIG. 11 is a plan view of an auxiliary weeding device unit and an enlarged side view of a part thereof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Grass bar 2 Grain raising device 4 Cutting blade device 10 Raising transmission case 12 Drive sprocket 13 Raising drive shaft 14 Harvesting transmission case

Claims (1)

[Claims] 1. A raising drive shaft 13 for driving a driving sprocket 12 at a lower end portion of a grain stalk raising device 2 is moved from a rear cutting transmission case 14 to an upper side of a cutting blade device 4 and interlocked therewith. In the drive transmission case 10 covering the drive drive shaft 13,
A combine grain raising device comprising a weeding rod 1 located in front of the grain raising device 2.