JPH08308360A - Threshing depth conveying system in combine harvester - Google Patents

Abstract

PURPOSE: To provide a system so designed that, when reaped grain culms subjected to threshing depth adjustment by a threshing conveyer correspondingly to long and short culm materials are to put to relay feed to the feed chain of a threshing section, such grain culms are ensured for smooth relay feed through preventing troubles such as culm spilling and rising phenomena. CONSTITUTION: There is provided the conveyance frame 7a of a threshing depth conveyer 7 so that the rear end of a culm-receiving rod 8 to receive from below and guide the root side of grain culms subject to relay feed from the root side conveyer 70 of the threshing depth conveyer to the initial end of a feed chain 3 is put adjustable relatively to the above initial end; in a deep-threshed state E where the threshing depth conveyer 7 is revolved downward, the rear end of the culm-receiving rod 8 is positioned upward, while in a shallow-threshed state F where the conveyer 7 is revolved upward, the rear end of the rod 8 is positioned downward; and, a culm pushing rod 9 to guide from above the roots of grain culms under elastic contact is provided against the rod 8 above it, and the basal part of the rod 9 is attached in a variable-height fashion to an attached bracket 75 extendedly provided from the frame 7a, and the rear end of the rod 8 is positioned high above the rod 9 in the state E, while positionedly fixed low below the rod 9 in the state F.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine deep-transporting device for combine harvesters, and more particularly to a harvesting culm, which is adjusted in depth by a deep-handled transporting body for long and short culm, to a feed chain of a threshing section. The present invention relates to a combine-handle deep-conveying device which can prevent troubles such as spillage of culms and lifting of culms when smoothly transferred to a combine harvester.

[0002]

2. Description of the Related Art Conventionally, as a combine deep handling device for combine harvesters, which adjusts the handling depth of grain stalks cut by a reaping section and conveys it to a feed chain in a threshing section and threshes, it is practically used.
Although the system shown in Japanese Patent No. 29 is known, the handling deep carrier of this system has a head side carrier and a stocker side carrier which are integrally provided in the upper and lower stages, and a rear side carrier. Rotate the front up and down around the axis as a fulcrum, change the holding position according to the long and short culm and convey it to the feed chain via the transfer unit, at the end of the stocker side transporter A culm rod that receives and guides the base from below and a culm rod that is opposed to this and guides the stock base from above are provided, and the rear end of the culm is fed to the feed chain at the transfer section. And the rear end of the culm rod is arranged along the feed surface of the feed end of the feed chain. However, in the conventional handling machine, with the mounting bases of the culm rods and the culm rods fixed to a certain position, the rear ends of both members are positioned to smoothly transfer standard length grain culms. Since it is set, it is not possible to respond sufficiently when the deep handling body is pivotally adjusted to the deepest handling state and the shallowest handling state, and due to spillage of culms, rise of culms, or poor transport. There was a drawback that problems such as clogging occurred.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above situation and was devised to eliminate the conventional drawbacks, and the intent thereof is to make the rear end of the culm rod a feed chain. It was installed on the transfer frame of the deep-handled transfer body so that it could be adjusted with respect to the starting end, and the base of the culm rod opposite to this was installed on the mounting bracket extending from the transfer frame so that the height could be changed. This enables the handling of deep culm culms and floating of culms, or transfer, when changing the handling deep conveyer to the deep handling state and the shallow handling state for long and short culm and transferring the cut culm to the feed chain of the threshing section. An object of the present invention is to provide a combine handling deep transfer device capable of preventing troubles such as clogging due to defects and smoothly transferring the combine.

[0004]

In order to solve the above-mentioned problems, the first technical means adopted by the present invention is to convey the cut grain culm by the stocker side carrier and the tip side carrier and at the rear part thereof. In the deep-handled conveying device, in which the front part can be rotated up and down as a fulcrum, and the depth of feed can be adjusted to the feed chain of the threshing part, the transfer depth can be adjusted from the above-mentioned stock carrier to the beginning of the feed chain. The rear end of the culm receiving rod that receives and guides the root side of the culm to be adjusted from the starting end of the feed chain is provided on the conveying frame of the conveying deep conveying body. In the deep handling state in which the body is rotated downward, the rear end of the culm receiving rod is positioned in the upward direction, and in the shallow handling state in which the handling deep conveying body is rotated in the upward direction, the culm receiving rod is moved. It is characterized by being configured to position and adjust the rear end downward. According to the second technical means, a culm pushing rod for elastically guiding the plant base of the grain culm from above is installed above the culm rod and the base of the culm rod is extended from the transport frame. It is characterized in that the mounting bracket is provided so that the height can be changed, and the culm rod is positioned high upward in the deep handling state of the handling deep conveying body, and is positioned and fixed low downward in the shallow handling state. It is a thing.

[0005]

Therefore, according to the present invention, when the short culm material is conveyed with the deep-handled carrier deeply handled, the rear end of the culm receiving rod is tilted upward and the culm pushing rod is displaced upward. When the long culm material is conveyed with the deep-handled conveying body in the shallow handling state, the culm rod is tilted downward and the culm rod is displaced downward for positioning. The root portion of the grain culm transported from the deep-handled carrier in the feeding unit is accurately received and guided by the culm rod, and is lifted by the culm rod to be smoothly transported.

[0006]

Embodiments of the present invention will be described in detail with reference to the accompanying drawings. In FIG. 1 and FIG. 2, A is a combine for multi-row cutting, and a combiner A has a mowing section 2 erected vertically in front of a machine base 1 having a traveling device 1a. Handling the grain culms harvested in
A threshing section 3b equipped with a feed chain 3 for threshing in 1. is mounted. A driver's seat 1b is arranged laterally between the mowing unit 2 and the threshing unit 3b. The reaper 2 is
A support frame 2a which is vertically rotatably supported by a column 1c standing upright in front of the machine base 1 and which is extended forward is rotatably supported by a hydraulic cylinder, and is arranged in front of the support frame 2a. On the harvesting frame 2b, the pulling devices 20, 20, ...
1, 21, ..., And cutting blades 4 are provided. Above cutting blade 4
Above the root, the star foils 22 and 22 on the stocker side that guide the crops by scraping and the scraping belts 23 and 23 on the stem side are ...
... and the like are arranged, and two sets of planted grain culms are raised and mowed as a pair, and the grain culm that is scraped and conveyed from the pair of left and right scraping paths is conveyed from the stocker side. ′ And the stem portion side, and is conveyed to the deep-handled conveying body 7 arranged in the rear through a vertical conveying path composed of conveying tines 6, 6 ′ and the like.

The handling depth carrier 7 is installed obliquely between the end of the transport chain 5 and the beginning of the feed chain 3, and the handling depth carrier 7 and the stocker side carrier 70 of the holding chain transport system and the tines. The tip end side carrier 71 of the carrier system is integrally framed in the carrier frame 7a, and the rear part of the carrier frame 7a is rotatably supported by the transmission shaft 1d which is the same fulcrum as the support frame 2a, and the grain culm length. The depth of the handle can be adjusted by moving the front side up and down according to.

A holding rail 72 and a culm guide 73 are provided opposite to each other on the conveying path side of the stocker side carrier 70 and the tip side carrier 71, and both members 72 and 73 are carried by the carrying frame 7a.
A conveyance path is formed by mounting the support rod 7b extending upward from the above in a reverse U-shape. Then, the rear end of the culm rod 8 provided on the side of the transport frame 7a is provided at the transfer section K of the transport grain culm formed by the end portion of the stocker side carrier 70 and the start end portion of the feed chain 3. The support rod 7 extends toward the starting end of the feed chain 3 and
A rear end portion of the culm rod 9 attached to a mounting bracket 75 that is fixed to b and supports the holding rail 72 is extended along the transport surface of the feed end 3 of the feed chain 3.

As described above, the combine A for four-row cutting, which constitutes a series of conveying paths, has two pairs of grain for each two rows by the pair of raising devices 20, 20 on the left and right sides of the cutting width as the machine runs. After raising the culm row, the root side of the grain stalk is cut by the cutting blade 4 in the process of guiding the grain culm by the pair of star wheels 22 and the scraping belt 23 located behind the grain culm,
Transport chains 5, 5'and transport tines 6, from the scraping path
It is conveyed rearward from the left and right connecting paths formed by 6 '. The left and right conveyance paths are formed in an inverted eight shape in a plan view so as to converge toward the rear from both sides of the cutting width, and gripping rails 5a, 5a are provided opposite to each other on the conveyance surface side and fed backward. In the confluence part G, the stock culm joins the stock root part to the right transport chain 5 side, and is transferred to the stock root side carrier 70 of the handling deep carrier 7 located above and transported backward. It

In the grain culm conveyed by the deep handling carrier 7, the culm length is detected by an appropriate culm length detecting mechanism (not shown) during the transportation, and the detection signal outputs the culm conveyer 7 to the transmission shaft. It is adjusted to an appropriate handling depth by rotating it up and down with 1d as a fulcrum, and the transfer section K at the end is adjusted.
Is fed from the feed chain 3 to the feed chain 3 and is supplied to the handling chamber 3a with a proper handling depth by the rotation of the feed chain 3, and threshing is performed in the process of passing through the handling port (not shown). That is, as shown in FIG. 3, when the culm length is short, the deep-handled carrier 7 is in the deep-handled state E in which the front side is pivoted downward, and the grain culm is held by the stockholder side. When threshing is performed at an appropriate handling depth and the culm length is long, a shallow handling state F in which the culm length is rotated in the opposite direction to the above is obtained, and the ear stem side is pinched to provide an appropriate handling depth. Threshed.

By the way, the culm rod 8 provided in the handling deep carrier 7 is provided with a long hole 8b of a mounting piece 8a provided at the base of the culm rod 8 with respect to a mounting member 7c formed in the transport frame 7a. The rear end portion is provided by the bolt 8c so that the rear end can be tilted up and down, and when the harvested grain culm is generally long culm, the handling depth posture of the handling depth carrier 7 is adjusted in the shallow handling state F. Therefore, the rear end of the culm rod 8 is positioned and fixed upward through the elongated hole 8b and is positioned close to the starting end turning portion of the feed chain 3. If the grain culms to be cut are generally short culm, the deep-handled carrier 7 is in the deep-handled state E and is separated from the starting end of the feed chain 3, so that the culm rod 8 is the opposite of the above. Position and fix the rear end to the bottom,
The feed chain 3 is configured so that it can be located close to the starting end turning portion, prevents spillage on the stock side, and smoothly transfers to the feed chain 3. In the above embodiment, the base of the culm rod 8 is provided so that the mounting angle can be adjusted. However, the present invention is not limited to this, and it may be provided so as to be vertically adjusted in parallel,
The point is that the rear end of the culm rod 8 can be adjusted relative to the starting end of the feed chain 3.

On the other hand, the culm rod 9 for holding the stock at the time of transfer is formed by a flat plate-like elastic plate, and its base is formed in a U-shaped cross section, and is mounted on the mounting plate 76 hung on the mounting bracket 75. Piece 7
6a and the lower piece 76b are detachably mounted via mounting screws 9a. Therefore, in the shallow handling state F, by mounting the base portion on the lower piece 76b side in the shallow handling state F, the rear end portion is prevented from being largely separated from the starting end conveying surface of the feed chain 3 and positioned so as to be close to each other. However, the transfer is carried out so as not to raise the stocker side, and smooth smooth transfer can be performed without giving excessive resistance to the initial transfer by the feed chain 3. Further, in the deep handling state E, the culm rod 9 is positioned at substantially the same position as the rear end portion of the mounting plate 76 by mounting the base portion thereof to the upper piece 76a of the mounting plate 76 without being largely displaced. By doing so, it is possible to carry out transfer while preventing the stockholder side from rising.

In the above construction, when cutting short culm material, in the deep handling state E in which the handling depth carrier 7 is inclined downward, the rear end of the culm rod 8 is the starting end of the feed chain 3. If it is positioned in advance in the upward direction via the mounting piece 8a so as to be close to the ridge, and the culm rod 9 is positioned in the downward direction so that its rear end is located above the starting end of the feed chain 3, The stock end side of the short culm, which is held and conveyed by the original side carrier 70, is guided by the culm rod 8 so as to be lifted from below, and is transferred to the starting end portion of the feed chain 3 and is then transferred to the starting end conveying surface of the feed chain 3. The culm rods 9 that are close along each other can be elastically contacted with the stocker side, and the short culm materials can be transferred while leveling. Further, when cutting long culm material, the rear end of the culm receiving rod 8 is moved to the stocker side carrier 7 in the shallow handling state F of the handling deep carrier 7.
If it is separated from 0 and brought close to the start end of the feed chain 3 and the culm rod 9 is positioned and adjusted downward,
With the stock end side of the long culm material held and conveyed with the stock base side hung long, the stock end side is lifted greatly by the culm rod 8 and accurately placed on the feed chain 3 for smooth transfer. It is possible to prevent the floating of the stocker side at the time of the above-mentioned continuous feeding while gradually pressing it with the culm rod 9, so that the feed chain 3 can satisfactorily hold and convey it. Therefore,
Long and short culm can be cut and transported smoothly at all times, and when grain culms are intermittently conveyed in a thin layer,
Alternatively, when the machine is turned suddenly, spillage in the transfer section K and culmination on the stock side do not occur, and the transfer is favorably carried out and a high-performance combine operation can be performed.

[0014]

As is apparent from the above description, according to the present invention, the handling deep conveying body is switched between the deep handling state and the shallow handling state in correspondence with the long and short culm, and the feed chain of the threshing portion is used. At the time of continuous feeding, the rear end of the culm receiving rod is positioned in the upward direction in the deep handling state, and the switching position is set in the downward direction in the shallow handling state. Even for grain culm, the stocker side can be lifted and guided accurately and smoothly transferred to the feed chain, and continuous transfer that prevents spillage etc. can be performed satisfactorily and high-performance combine work can be performed. . Also, by changing the mounting height of the culm rod in the deep-handled state and the shallow-handled state of the deep-handled carrier, the culm-rod pushes the stock base portion lifted up by the culm-rod in a gripping state from above. Since the guide is provided, the continuous feeding to the feed chain can be favorably performed without preventing the culm from floating and without giving culm or excessive conveyance resistance.

[Brief description of drawings]

1] Overall side view of combine

FIG. 2 Same as above

FIG. 3 is a side view illustrating the operation of the deep-handled carrier.

[Explanation of symbols]

 3 Feed chain 3b Threshing section 7 Deep-handled carrier 7a Transport frame 8 Cage receiving rod 9 Cutter push rod 70 Stock side carrier 71 Ear tip side carrier 75 Mounting bracket

Claims (2)

[Claims] 1. The feed chain of the threshing section is provided with a deep-handled carrier in which the cut culm is transported by the stocker side carrier and the tip side carrier, and the front part is vertically rotatable about the rear part as a fulcrum. In the handling depth conveyance device that conveys the handling depth in an adjustable manner, the rear end of the culm bar that receives and guides the plant side of the grain culm to be conveyed from the plant side carrier to the starting end of the feed chain,
In the deep handling state in which the handling frame of the handling deep conveying body is provided so as to be adjustable with respect to the starting end of the feed chain, and the deep handling state in which the handling deep conveying body is rotated downward, the rear end of the culm rod is The handling depth of the combine is characterized in that the rear end of the culm rod is positioned and adjusted downward in the shallow handling state in which the carrier is rotated upward and the handling depth is turned upward. Transport device. 2. A pair of culm rods for elastically guiding the base of the grain culm from above are installed above the culm rods, and the base of the culm rods is mounted on a mounting bracket extending from the transport frame. 2. The squeeze rod is positioned so as to be positioned higher in the deep handling state of the handling deep conveying body, and is positioned and fixed lower in the lower position in the shallow handling state. Combine handling equipment for deep-sea.