JPH0343016A - Combine - Google Patents

Abstract

PURPOSE:To prevent the breakage of a threshing drum caused by a foreign materials introduced from a reaping side into a threshing chamber by specifying the width of a channel between a conveyor and a bottom wall of a conveyor case at the starting end of a transfer apparatus. CONSTITUTION:The width A of a channel between a conveyor 59 and a bottom wall 60a of a conveyor case at the starting end of the transfer path of a transfer apparatus 58 is made to be narrower than the threshing channel width B between a threshing drum 31 and a threshing mesh 16 in a threshing chamber 8. Even if a foreign material is introduced from the reaping side into the threshing chamber, it is caught between the conveyor 59 and the bottom wall 60a of the conveyor case before being introduced into the threshing chamber and clogging the mesh.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a general type (general-purpose) combine harvester, which can be used for harvesting one crop of rice, etc.

[Prior art]

Conventional combine harvesters of this type are equipped with a reel at the front of the machine body that scrapes uncut culm backwards, a cutting blade device below the reel that reaps the culm, and a cutting blade device that cuts the culm laterally at the rear of the cutting blade device. While providing a scraping rotary body that collects the feed toward the center,
A conveying device consisting of an endless conveyor and a conveyor case is provided between the raking rotating body and the rear threshing section to receive and convey the collected husks, and the husks cut by the cutting blade device are disposed of. The culm is conveyed and supplied into the handling chamber of the threshing machine via a scraping rotary body and a conveyor, and is threshed while being transferred in the axial direction of the handling cylinder between the a trunk and the threshing net in the handling chamber.

[Problem to be solved by the invention]

However, in such a conventional device, the passage interval between the endless conveyor and the bottom tank of the conveyor case at least on the conveyance start end side of the conveying device is equal to the threshing passage interval between the handling drum and the threshing net in the handling chamber of the threshing machine. It was formed equally or more widely. Therefore, foreign objects such as wood chips and stones taken in with grain culms during harvesting pass between the conveyor of the conveyor and the bottom of the conveyor case without clogging, but they are taken into the handling chamber of the threshing machine. There is a problem in that the threshing machine gets clogged between the threshing drum and the threshing net, resulting in damage to the threshing drum, threshing net, etc., which are more expensive than the conveying device and difficult to repair and replace.

This invention solves the deficiencies of the conventional combine harvester mentioned above.
The purpose is to

[Means to solve the problem]

This invention takes the following technical means to achieve the above object. That is, the machine 7 is equipped with a handling barrel 19 that rotates around the longitudinal axis of the traveling vehicle body 1, and has a threshing net 16 stretched along at least the lower half circumference of the handling barrel 19.
and a conveying device 58 consisting of a cutting blade device 61, an endless conveyor 59 that picks up the husk cut by the cutting blade device and conveys it to the threshing machine 7, and a conveyor case 60 that covers the conveyor 59. In the combine harvester, the passage interval A between the conveyor 59 and the bottom wall 60a of the conveyor case at least at the starting end of the conveying device 58 is set to a distance between the handling drum 31 and the threshing net in the handling chamber 8 of the threshing machine 7. It is characterized by being narrower than the threshing passage interval B with respect to 16.

[action, effect]

Therefore, according to the present invention, even if foreign matter is taken in from the reaping side, the foreign matter is transported into the handling chamber of the threshing machine and before it gets stuck between the handling drum and the threshing net, it is transferred to the conveyor of the upper side conveyor. It is possible to reliably prevent damage caused by foreign objects to the handling drum or threshing net in the threshing machine, which is more expensive than the conveying device and difficult to repair and replace, as a result of clogging between the conveyor case and m+=. .

〔Example〕

1 is the running vehicle body, and there are endless track devices 2.2 on both the left and right sides of the lower part.
is installed. Reference numeral 3 denotes a prime mover, which is mounted on the right front upper part of the traveling vehicle body 1. 4 is the output shaft of the prime mover.

Reference numeral 5 denotes a pilot's seat, which is provided above the prime mover 3. 6 is a cockpit enclosure frame surrounding the left side and front side.

Reference numeral 7 denotes a threshing machine, in which a handling chamber 8 is located at the upper right side of the traveling vehicle body 1, a sorting chamber 9 is located at the bottom thereof, and a grain storage section 10 for temporarily storing and discharging grains is located at the upper left side. It is equipped to do so.

The handling chamber 8 is long in the front-rear direction, with the bearing frame 11 of the handling trunk shaft in the middle, and shell culm joint feeding ports 12 and 13 are provided at the lower and upper parts of the front end, respectively. The ends are provided with a culm discharge port 14 at the top and a dust exhaust port 15 at the bottom, a threshing net 16 at the bottom, a lattice frame 17 continuing behind the threshing net 16, and a fork 18 projecting toward the rear. are stretched in an arc.

Reference numeral 19 denotes a handling barrel, which has a cone-shaped front end, and a spiral blade 2 into which the culm is sent rearward.
0 is provided, and the cylindrical part behind this cone shape is treated with aI.
I am installing t21.

Reference numeral 22 designates a handling M-axis, which is supported between the front bearing frame 11 and the rear frame 23, fixes the handling cylinder 19, and is rotationally driven by a transmission gearbox 24 provided outside the front bearing 11. It is configured as follows.

Reference numeral 25 denotes a handling port, which is provided at the upper left side of the handling chamber 8 with a predetermined vertical width along the axial direction of the handling cylinder.

26 is a foot chain stretched along the outside of the handling opening 25.

The sorting chamber 9 is provided at the lower part of the handling chamber 8, and has a pressure winch 27 at the front end, and a first transfer spiral trough 28 and a second transfer spiral @29 from the front at the bottom of the back of the winnower 27. arranged,
A sorting swing shelf 30 is installed above these. 31 is a straw blower, and 32 is a cutter.

33 is a shell culm supply tube, which protrudes forward from the shell culm supply port 12 at the lower front end of the storage chamber 8, and has front, rear, upper,
The bottom is made up of four iron plates, and the front side of the bottom plate is shaped like an arc.

Reference numeral 34 denotes a scraping device, and a plate body 36 extending in the horizontal direction is attached to and integrally stopped via a frame body 37 to the rotation #35 which is horizontally suspended in the a-culm supply pipe 33 and rotated. Reference numeral 638 is a manual pulley, and reference numeral 39.40 is an output pulley for driving the threshing device 7 side and the reaping device side.

41 is a connected body of the reaping pre-processing section 52, and the raking device 34
It is fitted into left and right metals 42 and 42 which bear the rotating shaft 35 of the shaft 35, and is rotatably provided around the shaft 35, with its tip end projecting from the tip of the culm supply tube 33.

In the illustrated example, the connecting body 41 itself is formed into a rotating cylindrical body 41a that fits inside the culm supply tube 33, and its bottomed portion is formed on the bottomed upper surface of the tube 33. It is configured to be a sliding fit. In addition to the illustrated example, if the cylindrical body 41b is integrated into the reaper side as shown in FIG. It is sufficient to provide .

Reference numeral 44 denotes a pin for attaching and detaching the pre-reaping treatment section, and is made to protrude to the left and right outer sides of the connecting body 41. 45 is a cylindrical body 41
This is a flange erected on the outer periphery of the opening of a.

Reference numeral 46 denotes a suspension arm to which the reaping pre-processing section is attached so as to move up and down.Two arms 47 and 48, left and right, whose bases are pivoted to the front part of the traveling vehicle body 1 are provided, and the tips of these arms are traced with a pipe 49. A hydraulic cylinder device 51 is connected between a pipe 50 connecting the front and rear intermediate portions and the traveling vehicle body 1 side.

Next, to explain the reaping pre-processing part side, the reaping pre-processing part 52 is provided with splitting bodies 53 at both left and right ends, a reel 54 provided above between them, and a transfer spiral part A and a crank finger at the rear lower part thereof. A packet 56 into which a rotary body 55 having a partial opening is fitted is provided, and in order to form a culm scraping passage 57 connected to the upper left end of this packet and directed rearward and upward, the scraping rotary body 55 and the threshing machine 7, there is provided a conveying device 58 consisting of an endless conveyor 59 having lug bodies 59a attached at predetermined intervals and a conveyor case 60 covering the endless conveyor 59. The shell culm scraping passage 57 is formed with the wall 60a, and the lug body 59a slides into contact with the bottom tank of the passage to scrape up the shell culm in the packet 56. Further, a cutting blade device 61 is provided at the lower front side of the packet 56.

The conveyor 59 and the bottom tank 60a of the conveyor case 60 at least at the conveyance start end of the conveyance device 58
The passage interval A between them is made narrower than the threshing passage interval B between the handling drum 31 and the threshing net 16 in the handling chamber 8 of the threshing machine 7.

In addition, there is a line at the upper end of the culm scraping passage 57 of the reaping pre-processing section 52.
A hook frame 62 that engages from above the pin 44 protruding to the left and right outer sides of a, and a flange 63 that is joined to the outer peripheral flange 45 of the cylindrical body 41a are provided. Reference numeral 64 indicates a fastening bolt, and reference numeral 65 indicates an inverted U-shaped hook that fits into the pipe 49 of the suspension arm.

Next, the operation of the upper side will be explained.

First, when working in one row or harvesting and threshing rice with very short culms or soybeans, drive each rotating part from the yK motor 3.
Move the aircraft forward. Then, the erect hair culms in the field are collapsed into the packet 56 by the rotation of the reel 54, and the base of the plant is harvested by the cutting blade device 61. Therefore, the cut culms are stored in the packet 56, and the culms at the right and left ends of the packet are transferred by the transfer spiral part A to the part where the starting end of the culm scraping passage 57 is located. The part of the crank finger that is located is raked upward and rearward. Subsequently, the cut husks are reversed upward along the bottom surface of the culm scraping passage 57 by the lug body 59a of the endless conveyor 59, and are fed into the co-moving cylindrical body 41a from the end thereof.

Then, the raking device 34 is raked into the starting end side of the handling chamber 8 of the threshing machine 7 by the 1-1 turning plate 36, and the helical blade 20 of the handling barrel 19 is
to ensure that it is taken into the handling room.

When the entire husk is supplied into the handling chamber 8 in this way, it is threshed by the rotation of the handling barrel 9, and the grains pass through the threshing net 16 and are placed on the swing sorting shelf in the lower sorting chamber. Fukaraki 27
It is sorted by the sorting wind, and the first transfer spiral F428
The grains are then transferred to the right end of the threshing machine, lifted up by a lifting machine as appropriate, and discharged to the grain removal section 10 side.

In addition, the second grains that have not been completely threshed or have been threshed enter the second transfer spiral trough 29, and are transported back into the handling room 8 by the second thrower (not shown). will be returned to.

Furthermore, the threshed husks and large straw waste are directly discharged from the dust outlet 15 at the lower rear end of the handling chamber 8 to the upper part of the cutter 32, and are also sent out by the swinging sorting shelf 30 in the sorting chamber 9. Large pieces of straw are also discharged to the upper part of the cutter 32, where they are cut into small pieces and discharged out of the machine.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which FIG. 1 is a side sectional view of a conventional combine harvester, FIG. 2 is a plan view thereof, FIG. 3 is a side view of a conventional harvesting pre-processing section, and The figure is a slope view of the main part, Figure 5 is a sectional view of the main part, Figure 6 is a slope view with a part of the main part broken, Figures 7 and 8 are partial slope views, and Figure 9 is a slope view of the main part.
The figure is a separate perspective view of the main part. 1... Traveling vehicle body 7... Threshing machine 8... Handling room 16... Threshing net 19... Handling barrel
52... Reaping pre-processing section 54... Reel
55... Scraping rotary body 58... Conveyor device 60... Conveyor case 59... Endless conveyor 61... Cutting blade device

Claims (1)

[Claims] (1) Handling cylinder 1 rotating around the longitudinal axis of the traveling vehicle body 1
9 and a threshing net 16 stretched along at least the lower half circumference of the handling barrel 19; a cutting blade device 61; 7, and a conveyor case 60 that covers the conveyor 59, the combine harvester is equipped with a conveyor device 58 consisting of an endless conveyor 59 that conveys and supplies to the conveyor 59, and a conveyor case 60 that covers the conveyor 59. 60
A combine harvester characterized in that the passage interval A between the threshing machine 7 and the threshing cylinder 31 is narrower than the threshing passage interval B between the handling drum 31 and the threshing net 16 in the handling chamber 8 of the threshing machine 7.