JP2008182941A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a grain culm planted at the vicinity of a levee to be reaped by a combine harvester to omit manual reaping operation and to improve the efficiency of reaping operation. <P>SOLUTION: The combine harvester is constituted as follows. As first means, a grass divider 2 provided at a reaping device 3 is constituted so as to be changeable between an operation state of being protruded forward in the lower front side of a raising device 1, and a non-operation state of being retracted upward, and a reaping blade 4 provided at the rear position by a prescribed distance from the raising device 1 is constituted so as to be movable forward to a position below the raising device 1. As second means, further a raking device 5 provided on the rear side of the raising device 1 is constituted so as to be changeable between a raking operation state for raking without holding the grain culm, and a conveying operation state for conveying the grain culm rearward by holding the grain culm. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a combine that harvests planted cereals.

  Conventionally, in order to harvest fallen grain straw, the combine has been provided with a weed body that separates while raising the stock of the grain seed at the lower end of the pulling device, and causes the separated grain straw to be separated while scooping up with this weed body. It is caused by the apparatus, the root of the cereal that has been erected is cut with a scoring device, the root is cut with a cutting blade, and the harvested culm is sent to the threshing device with the culm transporting device. For this reason, it is necessary to cut and run toward the reed and stop the travel before the weed body hits the reed, but this is because the cutting blade is provided a predetermined distance behind the weed body and the pulling device. It is not possible to cut the cereals that are planted at the heel by the cutting blade. For this reason, the cereals at the time of cutting are harvested manually by an operator, and the harvested cereals are manually supplied to the threshing device for threshing.

Japanese Patent Application Laid-Open No. 2006-320279 discloses an idea that the weed body and the pulling device are integrally flipped upward as a combine that does not require such a manual cereal harvesting operation. Japanese Patent Application Laid-Open No. 6-327336 describes an idea in which the weed body and the pulling device are separately raised upward.
JP 2006-320279 A JP-A-6-327336

  In the conventional technology in which the above-mentioned weed body and the pulling device jump up, the pulling device does not work when the cocoon on the heel is lying down, so it cannot be cut even if the cutting blade advances, for example There was a problem that even after cutting, the harvested cereals were not automatically supplied to the threshing device.

  In addition, when there is a cocoon near the cocoon, there is a problem that the sprouted herb body and the pulling device get in the way and cannot approach the heel. In addition, the mechanism for transmitting power to the weeds and the pulling device is complicated, and there is a problem that the frequency of failure increases.

  Therefore, an object of the present invention is to implement a combine that can perform harvesting work even when the cereal grain on the heel is lying down.

  The present invention takes the following technical means in order to solve the above-described problems. That is, in the invention described in claim 1, the weeding body (2) provided in the mowing device (3) is changed between an operating state protruding forward and a non-operating state retracted upward on the lower front side of the pulling device (1). A combine that is configured to be capable of moving forward to a lower position of the pulling device (1), the cutting blade (4) provided behind the pulling device (1) by a predetermined distance; did.

  With this configuration, the herbaceous body 2 is brought into a non-operating state, and the cutting blade 4 is moved forward to the lower position of the pulling device 1 to approach the cocoon, and the cereal cocoon to be planted at the wake is caused by the pulling device 1. While cutting with the cutting blade 4.

  Moreover, in invention of Claim 2, the rake device (5) provided in the rear side of a pulling apparatus (1), the rake action state which rakes without holding a corn straw, and holding a candy straw, back The combine according to claim 1, wherein the combine is configured to be changeable to a transporting action state of transporting to.

  With this configuration, when the scraping device 5 is brought into the transporting action state, the cereal straw is held by the scraping device 5 and transported backward. As a result, even if the cutting blade 4 is moved forward to the lower position of the pulling device 1, the sorghum is spilled down because the cutting edge 4 is cut by the cutting blade 4 while the cereal is held by the scraping device 5. It becomes difficult.

  According to the first aspect of the present invention, the cutting blade 4 is moved to the lower position of the pulling device 1 and the cutting blade 4 is moved close to the reed and the cutting blade 4 is moved to the lower position of the pulling device 1. Grains of cereals to be planted can be reaped smoothly, and the efficiency of the reaping work can be improved by reducing the hand mowing work.

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, when the stocker side of the culm is cut by the cutting blade 4, this culm is held by the scrambling device 5. For this reason, it is possible to reduce the harvest loss due to spilling of the harvested cereal meal and to improve the efficiency of the harvesting operation.

Next, embodiments of the present invention will be described with reference to the drawings.
In this specification, the left side and the right side refer to the left hand side and the right hand side along the forward direction of the combine 10.

  As shown in FIG. 1, a crawler traveling device 13 having a pair of left and right traveling crawlers 12, 12 traveling on the soil surface is disposed on the lower side of the vehicle body 11 of the combine 10, and the pulling device 1 and the cutting device 1 are disposed on the front side of the vehicle body 11. A mowing device 3 comprising a blade 4 and a scraping device 5 is provided.

  A cab 15 having a cockpit 14 is provided behind the reaping device 3, and a threshing device 16 is provided above the vehicle body 11 for taking over and transporting cereals conveyed from the reaping device 3 to thresh and sort. A Glen tank 17 that is provided on the left rear side of the cab 15 and temporarily stores the grains threshed and selected by the threshing device 16 is disposed on the right side of the threshing device 16 after the cab 15. The auger 18 is connected to the rear part of the grain tank 17 so that the grains in the grain tank 17 are discharged to the outside of the combine 10.

  When the harvesting operation of the cereal is performed by running the combine 10, the cereal harvested by the reaping device 3 is transferred to the feed chain 19 of the threshing device 16 by the cereal transporting device 19, and the tip of the threshing device 16 The threshed and threshed grain straw is shredded by a cutter 20 provided at the rear of the threshing device 16 and released to the field.

2 to 5 are diagrams for explaining the present invention, in which the reaping device 3 is partially enlarged and displayed.
First, the three weed bodies 2 projecting forward at the lower end of the pulling device 1 are provided at the lower front sides of the left and right pulling devices 1 and at the central position between the left and right pulling devices 1. Is supported by the support shaft 6 in the front-rear direction so that it can be turned up and down, and when it is turned upside down, it does not protrude along the frame of the pulling device 1. Each herbage 2 may be rotated by a manual operation, but may be configured to be a remote operation by an electric motor.

  The cutting blade 4 is a so-called clipper blade composed of a lower fixed blade 8 and an upper slide blade 9. The left and right ends of a frame 7 that supports the fixed blade 8 and the slide blade 9 are screwed onto the screw shafts 21 and 22, respectively. ing. The screw shafts 21 and 22 protrude from the left and right end portions of the rear transmission case 23 along the weed bushes 27 and 29 and are supported by bearings 30 and 31 fixed to the weed bushes 27 and 29 at their ends. Yes. When the electric motors 25 and 26 attached to the rear ends of the screw shafts 21 and 22 are rotated, the frame 7 of the cutting blade 4 moves back and forth. The screw shafts 21 and 22 are screw shafts. However, the screw shafts 21 and 22 may be cam shafts having reciprocating cam grooves, and the frame 7 may be reciprocated back and forth by one-way rotation of the electric motors 25 and 26. .

The tips of the right and left weed rods 27 and 29 and the central weed rod 28 are positioned below the pulling device 1 and have pointed weed plates 39, 40 and 41 fixed thereto.
The transmission case 23 receives power from a rear engine (not shown) via a transmission shaft in the transmission cylinder 32 so as to rotationally drive the hexagonal shaft 24 penetrating in the front-rear direction at the left and right center. An eccentric cam 44 is fixed to the tip of the hexagonal shaft 24, and a bearing 40 attached to the eccentric cam 44 is fitted to a U-shaped receiving box 45 fixed to the slide blade 9 in a plan view. The cam 44 rotates to reciprocate the receiving box 45 left and right, and the slide blade 9 is reciprocated to the left and right. The receiving box 45 has a catching portion 43 so that the bearing 40 does not come out even if the frame 7 moves not only forward but also backward.

  In FIGS. 1 and 2, 65 is a steering lever for adjusting the traveling direction of the combine to the left and right, 66 is a main transmission lever for changing the traveling direction and traveling speed of the combine, and 67 is in the transmission case 68 of the combine. A sub-transmission lever 69 for switching the sub-transmission mechanism is a throttle lever for adjusting the rotational speed of the engine mounted on the combine.

In FIG. 3, reference numeral 70 denotes a blade presser that presses the slide blade 9 toward the fixed blade 8 side.
The normal mowing operation is carried out by fixing the cutting blade 4 at a regular position at a predetermined distance rearward in an action state in which the weed body 2 protrudes forward. The cutting body 4 is moved to the lower side of the pulling device 1 in the non-operating state in which the weed body 2 is lifted and retracted, and is moved forward so as to approach the reed.

  FIGS. 4 and 5 are plan views of the scraping device 5 that holds the raised cedar and assists the cutting by the cutting blade 4 on the lower rear side of the pulling device 1. The lugs 35 and 36 are provided with a belt-feeding device 37 and 38 provided with a belt, and in a normal cutting operation, as shown in FIG. 34, the cutting blade 4 is cut while holding the corn straw with the stir-up star wheels 33, 34. However, in the harvesting at the heel, the feeding devices 37, 38 are used as shown in FIG. Close and assist cutting with the cutting blade 4 that has moved forward by holding the culm from the front side of the scraping and conveying devices 37 and 38.

  As described above, the three weed bodies 2 are turned upside down to be in an inactive state, and the cutting blade 4 is moved forward to a position below the pulling device 1 to advance the machine body. 4 can be brought close to the cocoon, and the cereal cocoon planted at the heel can be smoothly reaped, and the efficiency of the reaping operation can be improved by reducing the hand mowing work. Further, when the grain side of the cereal is cut by the cutting blade 4, the cereal is held by the scraping device 5, so that it is possible to reduce the loss of harvest due to spilling of the cereal and the harvest loss. The work efficiency can be improved.

6 to 9 are reference examples and show a general-purpose combiner.
6 and 7, the scraping reel 55 provided in the reaping device 49 is removed, and the upper and lower links 57 and 58 and the hydraulic cylinder 56 forming a parallel link in which a lug-type pulling device 50 is provided on the left and right. The structure is suitable for harvesting soybeans, which is supported so that it can be moved up and down and provided with a take-up reel 55, and is adapted to be adapted for harvesting rice and wheat. If the lug-type pulling device 50 is attached so as to be able to be lifted and lowered in this way, in the case of maintenance, the pulling device 50 is raised, and it becomes easy to perform maintenance and inspection of the clipper blade 52 from the lower side of the pulling device 50. .

  The middle part of the cereal is cut with a clipper blade 52, sent to the center of the machine body with a scraping auger 53, and sent to a threshing device 59 with a conveyor belt 54 for threshing. A scraping reel 55 is provided above the reaping device 49. Reference numeral 60 denotes a driver's seat.

  FIG. 8 shows the ground of the grounding sensor 62 provided at the bottom of the pulling device 50 by providing a second clipper blade 61 for cutting the grain stock behind the first clipper blade 52 so that it can be moved up and down by links 63 and 64. By detecting the height, the second clipper blade 61 is moved up and down to follow the unevenness of the ground.

  FIG. 9 shows that the pulling device 50 provided at the foremost part of the cutting device 49 is disposed in a tilted state so that the operator A sitting on the driver's seat 60 can sit up and pull the device 50 so that the tip of the device 50 can be seen clearly. It is easy to do.

Combine side view Perspective view of the front part of the combine Enlarged perspective view of combine harvester Expanded plan view of the combine scraper Expanded plan view of the combine scraper General side view of general purpose combine General plan view of general purpose combine General side view of a general-purpose combine showing another embodiment Overall side view of a general-purpose combine showing yet another embodiment

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pulling device 2 Divided weed 3 Cutting device 4 Cutting blade 5 Staking device

Claims (2)

The weeding body (2) provided in the mowing device (3) is configured to be changeable between an action state protruding forward on the lower front side of the pulling device (1) and a non-action state retracted upward, and the pulling device ( The combine characterized in that the cutting blade (4) provided at a predetermined distance behind 1) is configured to be movable forward to the lower position of the pulling device (1). The scraping device (5) provided on the rear side of the pulling device (1) can be changed between a scraping action state in which the culm is not retained and a conveying action state in which the culm is retained and conveyed backward. The combine according to claim 1, which is configured as follows.

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