JP2000083443A - Grain culm guide device of combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grain culm guide device capable of accurately carrying grain culm having their lengths over a wide region ranging from long grain culm to short grain culm, while maintaining a prescribed carrying posture. SOLUTION: A reaping and pre-treating device 3 is vertically liftably disposed in the front portion of a travel vehicle body on which a thresher 1 is loaded. The reaping and pre-treating device 3 is provided with a front carrying device for carrying reaped multi-row grain culm and simultaneously joining the carried grain culm, and with a threshing depth control device 5 and a feed control device 6 which are used for receiving and subsequently carrying the joined grain culm. In the front carrying device, an ear tip side-carrying device 4a is extended and disposed at a place near to the rear thresher through places above the threshing depth control device 5 and the feed control device 6. An ear tip portion guide 7 which are used for guiding the ear portions of the carried grain culm and whose starting end portion and final end portion are placed at a portion for joining the carried grain culm and at a place near to the starting end portion of the feed control device, respectively, is disposed along a vertically central portion between the ear tip side-carrying device and the threshing depth control device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine culm guiding device, and belongs to the technical field of agricultural machinery.

[0002]

2. Description of the Related Art Conventionally, a combine has been provided with an automatic control device for a handling depth in order to cope with the length of a grain culm, and a delivery position is changed and adjusted in a culm body direction at a feed chain starting end of a threshing device. However, the handling position between the handling cylinder and the grain stalk was adjusted to a position where the threshing efficiency was high. Further, such a conventional combine has a configuration having a ridge-side control mechanism for processing an ultra-short culm in order to properly perform the cutting and threshing work at the ridge (headland).

[0003]

As described above, the combine has conventionally been capable of transporting grain culms having a wide range of lengths from long culms to extremely short grain culms (ultra-short culms) while maintaining a predetermined conveying posture. Proper transport is required. However, in the conventional combine pre-cutting device, when the ultra-short culm is transported, the tip side does not reach the upper ear portion transport device even if the stem is pinched, and the ear portion cannot be reliably engaged and held. There is a problem that the culm is disturbed because it is transported in a state, and it is not possible to transport it properly.

[0004]

SUMMARY OF THE INVENTION The present invention takes the following technical means in order to solve the above-mentioned problems. That is, in front of the traveling vehicle body 2 on which the threshing device 1 is mounted, a pre-cutting device 3 is provided freely up and down and up and down, and joins the pre-cutting device 3 while transporting multiple cut culms. Front conveying device 4, and a handling depth adjusting device 5 and a feed adjusting device 6 for inheriting and conveying the combined grain culm,
The front transfer device 4 is configured such that one end tip transfer device 4a is
It is provided extending above the handling depth adjusting device 5 and the feed adjusting device 6 to extend to the vicinity of the rear threshing device 1, and a start end portion is provided between the tip conveying device 4 a and the handling depth adjusting device 5. Is located at the confluence of the transported grain culm, and the end portion is located near the start end of the supply adjusting device 6, and a spike portion guide 7 for guiding the spike portion of the transported grain culm is provided. It is a guide device.

[0005]

According to the present invention, as described above, grain culms having a wide range of lengths from long culms to extremely short culms (ultra-short culms) can be transported in a predetermined conveying posture. It has the effect that it can be transported accurately while keeping it. In particular,
The present invention provides a head section guide that guides the ear section of the transported grain culm in the pre-cutting device, so that when the ultra-short culm is transported, the tip side that does not reach the tip transport apparatus in a state in which the stock is held. Can be reliably engaged and held, so that the culm body is not disturbed and can be transported accurately.

[0006]

Embodiments of the present invention will be specifically described below with reference to the drawings. First, the configuration will be described. As shown in FIG. 3, the traveling vehicle body 2 winds a crawler 8 molded from a rubber material around a driving sprocket 9 and a plurality of idler wheels 10, and as well as a dry field,
It is designed to be able to run without sinking even in wetlands. The threshing apparatus 1 has a feed chain 11, a handling chamber 12 with a handling cylinder mounted on the upper side, a sorting chamber on the lower side, and threshing and sorting of the supplied harvested grain culm. Mounted on the traveling vehicle body 2.

The auxiliary feed chain 13 is shown in FIG.
As shown in the figure, the start end is wound around a transmission sprocket 14 transmitted from the feed chain 11, and the end is brought close to a supply port to the handling chamber 12 as shown in FIG. It is configured to extend and supply the culm inherited from the supply control device 6 described later to the handling room 12 in cooperation with the feed chain 11 or alone.

Next, as shown in FIGS. 1 and 2, the pre-cutting device 3 includes a support base 1 provided at a front portion of the traveling vehicle body 2.
5, a rear portion of the cutting frame 16 extending forward and downward is rotatably pivoted up and down, and the cutting frame 16 is equipped with a cutting device 17 and each grain culm conveying device described later. are doing. That is, the pre-cutting device 3 comprises a culm raising device 19 in which the weeding rod 18 is provided at the lower part of the front end, and the stalk is inclined behind it.
A reaping device 17 is provided in the lower rear portion, and a scraping transport device 20 and a front transport device are provided between the reaper 17 and the starting ends of the feed chain 11 and the auxiliary feed chain 13. Device 4, handling depth adjusting device 5, supply adjusting device 6
Are arranged so as to be able to successively carry and transport the grain culm, and are attached to the above-described cutting frame 16 so as to be capable of transmission. Reference numeral 21 denotes a lifting cylinder.

As shown in FIGS. 1 and 2, the scraping and conveying device 20 includes a lower scraping wheel 20a and an upper scraping endless band 20b. It is provided above the reaper 17 so that the grain stalk is raked and transported rearward. The front transfer device 4 is composed of an ear transfer lug (head transfer device) 4a and a stock transfer chain 4b. The grain culm is transported upward and backward, and the left and right grain culms are merged at the end.

As shown in FIG. 1 and FIG. 2, the tip transport lug (tip transport device) 4a is connected to a feed chain from the front right side of the traveling body 2 in the traveling direction. 11 is a plan view on the starting end side (left side) of FIG.
), And is extended to the rear part of the pre-cutting device 3 to convey the grain stalk ears in a continuous state.

Next, as shown in FIG. 1 and FIG. 2, the handling depth adjusting device 5 comprises a transport chain and a holding rod as conventionally known. The base of the transported cereal stem is provided so as to be able to be inherited, and the rear end is extended upward and rearward so as to face the start end of the supply adjusting device 6 described later. And the handling depth adjusting device 5
The start end is pivotally connected to the cutting frame 16 and the end side swings up and down along the culm direction of the transported culm. Then, the threshing depth adjusting device 5, threshing depth control mode - is connected via a Ren杆22 to motor -M _1, controller (not shown) - is driven based on the operation signal outputted from La, threshing depth The control is performed.

Next, as shown in FIGS. 1 and 2, the supply adjusting device 6 is provided so as to clamp and transport the grain stem by the supply chain 23 and the holding rod 24. Auxiliary feed chain 1
3 (feed chain 11) is delivered to the start end to adjust the supply. More specifically, as shown in FIG. 1, the supply adjusting device 6 is provided with the aforementioned cutting frame.
A drive sprocket 26 mounted on the upper surface of an integral transmission box 25 located on the side of the auxiliary feed chain 13 (feed chain 11) from the base of the feed chain 16;
The supply chain 2 is supplied to a rolling wheel 28 which is mounted on a movable chain rail 27 which guides the transfer side 3 from the inner surface, and a tension roller 29 which is located in front of them and has a tension function.
3 is wound.

The movable chain rail 27 guides the transport side of the supply chain 23 from the inner surface as described above. The movable chain rail 27 protrudes obliquely forward from the transmission box 25 and extends in front of a fixed support arm. The auxiliary feed chain 1 is provided so as to be freely rotatably supported at the front end thereof.
3 can be moved far and near with respect to the start end. Further, the tension roller 29 includes a tension spring 3
A pressure is applied outward (in the direction in which the chain 23 is stretched) by zero.

[0014] Then, the supply control motor - motor -M ₂ is provided below the supply chain 23, the through slot 31 movable Chienre - provided coupled to Le 27, not shown control -
It is driven based on an operation signal output from the controller, and performs supply adjustment control. Next, as shown in FIGS. 1, 2 and 3, the tip guide guide 7 includes a lower portion of the tip transport device 4 a constituting the front transport device 4,
Between the handling depth adjusting device 5 thereunder, the starting end is at the merging and conveying position of the front grain culm, the end is extended to a position near the starting end of the rear feeding adjusting device 6, and both ends are attached. It is composed. That is, the tip guide guide 7 attaches the start end to the rear lower side (refer to FIGS. 1 and 2) of the front left front end transporting device (front transporting device) 4a, and attaches the rear end to the cutting pre-processing device 3. It is attached to the supporting machine frame 33.

As shown in FIGS. 4 and 5, the auxiliary weeding pipe 34 raises the lower part to the weeding support rod 35 and raises the upper part at the leftmost weeding position of the traveling vehicle body 2. 36, the cut culm (the culm to be cut) and the uncut culm are planted separately. The auxiliary weeding pipe 34 does not need to be installed and operated at all times, and is effective when used when the degree of lodging of the cereal stem is large.

Next, as shown in FIG. 6, the handling depth adjusting device 5 fits a rotating adjusting boss 38 to a fixed boss 37 provided at an intermediate portion of the cutting frame 16 to handle the working depth. Adjustable configuration. The fixed boss 37 is provided with a receiving seat 39 on the outer side (outer peripheral portion) of the fixed boss 37 and rotates.
The outer receiving portion 40 is supported on the receiving surface.

With such a configuration, the handling depth adjusting device 5
Is supported by a wide support area in adjusting the handling depth, so that the adjusting operation is stable, the durability is increased, and the device can be used for a long time. Moreover, the seat 39 and the outer receiving portion 40 also have a feature that the seat 39 and the outer receiving portion 40 are located at positions where they do not hinder the conveyance of the grain stem. Next, based on FIG.
1a and the takeover assisting guide rod 41b will be described.

When the harvesting pretreatment device 3 transfers the transported grain culm from the transport end portion to the starting end of the feed chain 11 of the threshing device 1, spills and the like do not occur, and the harvesting pretreatment device 3 can be reliably inherited. The above-described takeover guide rod 41a and takeover auxiliary guide rod 41b are provided. That is, the takeover guide rod 41a and the takeover auxiliary guide rod 41b are made of an elastic material, and their bases are attached to the support frame 33 of the pre-cutting device 3 and extended toward the feed chain 11 side. The takeover assisting guide rod 41b) is located on the upper side in the transport direction and is made of a relatively weak elastic material, while the other (the takeover guide rod 41a) is located on the lower side in the transport direction and is made of a material having a strong elastic force. .

With the above construction, the transported grain culm is first transported while being pressed by the takeover assisting guide rod 41b having relatively low elasticity, reaches the starting end portion of the feed chain 11, and is subsequently inherited. , Takeover guide rod 41a
Is pressed toward the feed chain 11 and conveyed. In this case, the grain culm is inherited while being pressed from the assisting guide rod 41b to the handover guide rod 41a in a relatively long process, so that the inheriting action is performed very smoothly, and culm spillage and the like do not occur.

Next, based on FIG. 8 and FIG. 9, a stock guide that ensures that the stock of the transported grain culm is inherited from the end of the pre-cutting device 3 to the beginning of the feed chain 11 of the threshing device 1. The components 44a and 44b will be described. First, the feed chain 11 is configured as a feed chain opener in which a rear portion of the feed chain 11 rotates outward around a front rotation fulcrum shaft 45, and the inside (handle) of the threshing device 1 is conventionally known. And the sorting room) can be easily cleaned and maintained. The stock guides 44a and 44b are members that push the spread of the grain stem to be transferred and spread outward so as to easily engage with the feed chain 11. One of the stock guides 44a is pre-cut. It is attached to the lower side of the movable chain rail 27 on the side of the device 3 and the other (the stock guide 44).
b) is attached to the feed chain 11 side.

In this case, the stock guide 44b performs open rotation integrally with the feed chain 11, but at this time, the stock guide 44a can be rotated without contacting the stock guide 44a at a fixed position. It is arranged at a position. With this configuration, the culms of the transported cereal are surely inherited while their roots are guided, and finally the feed culm 1
It reaches 1 and is transported backward. Two stock guides 44a,
44b guides the origin of the grain culm as described above,
Even if one side moves (vertical up / down on the reaping side or a feed chain open on the threshing side), the interference such as contact does not occur at all, and it can be moved up / down There is a feature that can rotate.

Next, the operation will be described. First,
The combiner starts the engine, operates the mowing clutch device and the threshing clutch device to transmit the rotating parts of the body, and operates the traveling vehicle body 2 for forward traveling, so that the controller can also start up and work. Get ready.
When the combine starts harvesting and threshing work in this way, the culm in the field is subjected to weeding by the weeding rod 18 at the lower front end, and is then erected from the lying state by the raising action of the culm raising device 19. In this state, the root of the stock reaches the reaper 17 and is harvested, squeezed under the action of the scraping wheel 20a and the scraping endless belt 20b, inherited by the front conveying device 4, and successively in a continuous state. It is transported to the upper rear.

The cereals are collected in a large number of rows, conveyed by the left and right front conveying devices 4 and merged at the rear, and successively transferred from the handling depth adjusting device 5 to the supply adjusting device 6 in a continuous state. The feed reaches the starting end of the feed chain 11 and is supplied to the threshing apparatus 1. The culm is threshed by the rotating handling cylinder while the tip portion is inserted into and passed through the handling chamber 12 while the stem is conveyed while being clamped by the feed chain 11. Then, the threshing product reaches the lower sorting room and is subjected to the sorting wind and the action of the rocking sorting device to be sorted.

As described above, the combine continuously performs harvesting and threshing work, harvests and selectively collects and stores threshed grains in a Glen tank. Now, as described above, when the cutting and threshing operation is continuously performed, the pre-cutting device 3
When the grain culm length is a long culm or a short culm, the spike side is engaged with the spike conveying device 4 (spike conveying lug) in a state where the stem is sandwiched by the handling depth adjusting device 5. To the threshing apparatus 1 side. However, in the case of the cutting operation on the ridge, the cutting pretreatment device 3 increases the cutting height so that the tip of the weeding rod 18 does not collide with the ridge. (Ultra short culm) and transported. At that time, the tip guide guide 7 can hold and guide the grain culm that cannot reach the tip conveying device 4a because of the ultrashort culm, and can be passed on to the supply adjusting device 6 without disturbing the conveying posture.

As described above, the present invention has a feature that it can be transported while maintaining a predetermined transport posture regardless of the length of the grain culm length. It has a unique effect that it can be transported neatly without disturbing the transporting posture during harvesting and transporting.

[Brief description of the drawings]

FIG. 1 is a plan view of an embodiment of the present invention.

FIG. 2 is a side view of the embodiment of the present invention.

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

FIG. 4 is a front view of the embodiment of the present invention.

FIG. 5 is a side view of the embodiment of the present invention.

FIG. 6 is a side view of the embodiment of the present invention.

FIG. 7 is a side view of the embodiment of the present invention.

FIG. 8 is a plan view of the embodiment of the present invention.

FIG. 9 is a side view of the embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Threshing device 2 Running body 3
Cutting pretreatment device 4 Front transfer device 5 Handling depth adjustment device 6
Supply control device 7 Ear tip guide.

Claims (1)

[Claims] 1. A cutting pre-processing device 3 is provided at a front portion of a traveling vehicle body 2 on which a threshing device 1 is mounted so as to be able to vertically move up and down. A front conveying device 4 that merges while the culm is combined, and a handling depth adjusting device 5 and a supply adjusting device 6 that inherit and convey the combined grain culm.
The front transfer device 4 is configured such that one end tip transfer device 4a is
It is provided extending above the handling depth adjusting device 5 and the supply adjusting device 6 to the vicinity of the rear threshing device 1 at a rear portion, and between the spike conveying device 4a and the handling depth adjusting device 5,
The combine is provided with a spike tip guide 7 that guides the spikes of the transported grain culm with the start end positioned at the confluence of the transported grain culm and the end end positioned near the start end of the feed control device 6. Grain stalk guiding device.