JPS6013334Y2 - Combine grain conveyor - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is equipped with a head-side locking conveyance section and a stock-side clamping conveyance section, and the conveyance speed can be changed and adjusted, and the reaped husk can be held in a standing position. The terminal end of the horizontally rotating type rear conveying device which clamps and conveys the culm, and the vertical type which carries the culm in substantially the same direction as the horizontally rotating type rear conveying device with a constant conveying speed and holding the culm in a sideways posture. A vertically rotating type relay conveying device that extends between the starting end of the threshing feed chain and that is changed in speed in synchronization with the speed change of the horizontally rotating type rear conveying device, and that pinches and conveys the husks in the same sideways posture as the feed chain. This invention relates to a shell culm conveying device for a combine harvester.

[Conventional technology]

Conventionally, the relay conveyance device has been arranged outside the horizontally rotating type rear conveyance device and the feed chain in plan view.

(For example, the combine harvester described in Japanese Patent Application Laid-open No. 53-54535) [Problems to be solved by the invention] In the conventional arrangement, the posture of the conveying shell is changed from the standing posture between the rear conveying device and the feed chain. When changing to a sideways posture, the middle part may loosen during the change of posture, resulting in disordered posture.

This is due to the fact that during the attitude change, the conveyor culm is supported between two relatively long points: the tip-side locking conveyor part that makes up the rear conveyor and the relay conveyor on the outside of the fuselage. I found out something.

The present invention has a simple structure by devising the installation position of the relay conveyance device and using a clamping rail that acts on the feed chain starting end, and allows the culm to be transferred from the rear conveyance device to the feed chain. The present invention aims to provide a better combine harvester shell culm conveying device.

[Means for solving problems]

The technical means taken by the present invention is to arrange the relay conveyance device at an intermediate position in the culm length direction between the horizontally rotating rear conveyance device and the feed chain in plan view, and
A clamping rail that acts on the conveyance starting end of the feed chain is placed near the starting end of the relay conveyance device and extends rearward from a position outside the relay conveyance device in plan view, and the first half of this clamping rail acts on the relay conveyance when viewed from the side. The first half is made to act on the feed chain immediately after the end of the clamping action of the relay conveyance device, along the conveyance action surface of the device, and the first half is configured as a base guide for the culm to be pinched and conveyed by the relay conveyance device. That's what I did.

[Effect]

According to the above-mentioned technical means, the conveying shell culm is transferred to the relay conveying device disposed closer to the rear conveying device than the feed chain during the attitude change.

In addition, the stock side part of the culm that protrudes from the relay conveyance device is
It is guided by the lower surface of the first half of the clamping rail that acts on the conveyance start end of the feed chain.

[Effect of idea]

As a result of the above-mentioned technical measures, the distance between the relay conveyance device and the tip side locking conveyance section of the rear conveyance device becomes closer,
The attitude of the conveying shell culm can be changed without causing the intermediate portion of the conveying shell culm to loosen as described in the prior art.

Moreover, by placing the relay conveyance device inside the fuselage rather than the feed chain, in other words, because the relay conveyance device is closer to the tip side of the conveyor culm, the protrusion amount is large and the posture of the stock base is unstable. can be guided to the end point of the clamping action of the relay conveyance device by using the existing clamping rail, and while the overall configuration is simple, it is possible to guide the conveyance culm from the rear conveyance device to the feed chain. Uke and handing can be done well without changing posture.

〔Example〕

Figure 1 shows the overall side view of the combine harvester.The front part of the traveling machine equipped with the hip threshing device 1 is used to raise and reap the planted culms, which are then delivered to the feed chain 2 of the threshing device 1 in a horizontal position. A preprocessing section 1 is installed.

The reaping pre-processing section 3 includes three pulling devices 4 for guiding the plurality of planted culms into three introducing paths and raising them into an upright position.
at 4 b, 4 C% An auxiliary conveyance mechanism 5 that pulls the raised shell culm backwards, a clipper type reaping device 6, a lateral conveyance mechanism 7 that conveys the cut culms laterally and merges them, and a rearward transport mechanism 7 that transports the harvested shell culms to the rear. It is comprised of a rear conveyance device 8 that feeds the feed chain 2 in a sideways posture while conveying it upward.

FIG. 2 shows a schematic plan view of the reaping pre-processing section 3, and then shows the auxiliary conveyance mechanism 5, the horizontal conveyance mechanism 7, and the rear conveyance device 8.
Explain each.

The auxiliary conveyance mechanism 5 includes two scraping conveyance belts 9a, 9b with protrusions disposed close to the rear of the relatively lower part of the lifting devices 4a, 4b, and is disposed above the conveyance belt 9a on the right side. It consists of a two-stage rake rotary packer 10a, lla, and a two-stage rake rotary packer 10b, llb arranged above the left conveyor belt 9b. It is configured to be retracted and introduced into the reaping device 6 side.

Further, the horizontal conveyance mechanism 7 includes a plant base side conveyance device 12 consisting of a chain with an undulating claw that acts on the cut culms that are raised by a right-side lifting device 4a and a central lifting device 4b, and a protrusion located above the root-side conveying device 12. Intermediate horizontal conveyance device 1 consisting of a chain with a
3. A tip-side locking and conveying section 14 consisting of a chain with an undulating claw that acts on the tip side, and a undulation that is pulled up by the left-hand lifting device 4c and acts on the base of the cut culm to cross-feed it in the opposite direction. Stock horizontal conveyance device 15 consisting of a chain with claws,
It consists of a chain 16 with a protrusion located above it.

Further, the horizontally rotating type rear conveyance device 8 that clamps and conveys the cut culm in a standing position includes a portion 14' extending rearward and upward from the horizontal conveyance portion of the ear-side locking conveyance section 14, and a portion 14' extending rearward and upward, A plant head side clamping and transporting section 17 extending rearward from near the end of the side transporting section 15, and a stockpiling side auxiliary clamping and transporting section 18 fixedly disposed at the lower rear of the tip side locking and transporting section 14, and a handle. It is configured.

In addition, the stock side clamping and conveying section 17 is pivotally mounted around a horizontal horizontal axis 1 near the front end so that it can be freely swung up and down, and by this swinging, the clamping position of the auxiliary clamping and conveying section 18 with respect to the culm can be changed. After that, the insertion length of the shell culm into the threshing device 1 when delivered to the feed chain 2 can be adjusted.

The present invention is characterized in that, in the reaped husk culm conveying structure having the above configuration, in particular, the delivery and conveying structure from the auxiliary clamp conveying section 18 to the feed chain 2 is configured as follows.

In other words, the horizontally rotating type conveying section 18 that holds the conveyed shell culm in an upright position is disposed closer to the tip side than the feed chain 2 that holds the shell culm in a sideways posture, and when viewed from the side, the horizontally rotating type conveying section 18 holds the shell culm in an upright position. A relay conveying device 19 extending between the terminal end of the conveying section 18 and the starting end of the feed chain 2 is connected to both conveying devices 18 in a plan view.
, 2 and is arranged parallel to the feed chain 2.

This relay conveyance device 19, like the vertically rotating type feed chain 2, grips the culm in a sideways posture and conveys it rearward, and the clamping conveyance is carried out in a direction that is higher than the conveyance surface of the starting end of the feed chain 2. It is set high.

In addition, the clamping conveyance rail 20 of the horizontally rotating conveyor section 18 is supported by a fixed rail stand 22 via parallel links 21, 21, and the rail 20 is supported by a coil spring 23.
is elastically biased in the direction of the culm support.

Further, from the rail stand 22, clamping rails 24 and 25 made of leaf springs and facing the relay conveyance device 19 and the feed chain 2 extend in a backward cantilevered manner.

The rails 25 of the feed chain 2 are bent downward from the middle to the rear in order to exert a clamping action only at the rear, and the base portion of the culm transported by the relay transport device 19 is held by the rails 25. The front part is configured to guide from above, and the clamping action at the rear of the rail 25 is exerted immediately after the relay conveyance device 19 is released from clamping.

Incidentally, a culm guide rod 26 made of a bar material is pivotally attached to the upper surface of the rail stand 22 so as to be able to swing up and down.
The rear end of 6 is connected to the feed chain 2 and its clamping rail 2.
It is inserted between 7.

The rail 25 is located in the middle of the guide rod 26.
A tongue piece 28 is provided for abutting and regulating the upper limit of elastic displacement of the tongue.

FIG. 11 shows an outline of the power transmission system, in which the output from the installed engine 29 is branched into two systems a and b,
The power of one transmission system a is transmitted to the gear transmission case 32 of the crawler traveling device 31 via a hydraulic continuously variable transmission device 30 capable of forward and reverse rotation, and a constant rotational direction output from the transmission device 30 is unidirectionally transmitted. It is transmitted to each device 4a, . . . , 5, 6, 7.8 of the pulling and reaping section 3 via a rotary clutch 33 and a manually operated clutch 34.

The power of the other transmission system is transmitted via a manually operated clutch 35 to the threshing device 1, the feed chain 2, and the straw removal cutter 36 and binding device 37 attached to the threshing device 1.

Note that the straw removal cutter 36 and the binding device 37 are used selectively.

Further, according to the above configuration, when the running speed is changed, the speed of the horizontally rotating rear conveyance device 8 is changed with respect to the feed chain 2 which is driven at a constant speed, so that there is a difference in the conveyance speed of both conveyance devices 8, 2. This situation occurs because the relay conveying device 19 between the two conveying devices 8 and 2 is speed-changed in synchronization with the horizontally rotating rear conveying device 8, so that the feed chain from the horizontally rotating rear conveying device 8 is The culm delivery to No. 2 is carried out as follows.

That is, the culm, which is held and conveyed in an upright position by the horizontally rotating type rear conveying device 8, is first transferred from the vertical position to the sideways position by the relay conveying device 19, which is driven with no difference in conveyance speed between the horizontally rotating type rear conveying device 8 and the conveying speed. The culm is delivered while being changed in attitude, and then, when the relay conveyance device 19 completes the clamping conveyance in the sideways posture, the culm released from the clamping of the rails 24 is fed from the end of the relay conveyance device without changing its conveyance posture. The starting end of the chain 2 falls onto the conveying surface and is immediately gripped by the clamping action of the rails 25, causing it to be conveyed at different conveying speeds.

In other words, by dividing the transfer between the rear conveyance device 8 and the feed chain 2, which have different shell holding postures and conveyance speeds, into two stages: a transfer for changing the posture and a transfer for changing the conveyance speed. By changing the conveyance posture and the conveyance speed at the same time, large conveyance holes are prevented from occurring.

[Brief explanation of drawings]

The drawings show an embodiment of the grain culm conveying device according to the present invention.
The figure is an overall side view of the combine, Figure 2 is a schematic plan view of the shell culm conveyance device, Figures 3 to 6 are partial side views of the auxiliary conveyance mechanism and horizontal conveyance mechanism, respectively, and Figure 7 is the auxiliary conveyance mechanism. 8 is a side view of the rear conveyance device, FIG. 9 is a plan view of the rear conveyance device, FIG. 10 is a sectional view taken along line A-A in FIG. 9, and FIG. 11 is a schematic transmission system diagram. 2... Feed chain, 8... Rear conveyance device, 14... Tip side locking conveyance section, 18...
Curved/stock side clamping conveyance unit, 19... Relay conveyance device, 25... Curved clamping rail.

Claims (1)

[Scope of utility model registration request] The terminal end of a horizontally rotating rear conveyance device 8 which is equipped with a head side locking conveyance section 14' and a stock side clamping conveyance section 18, whose conveyance speed can be changed and adjusted, and which clamps and conveys the cut culm in a standing position. , the conveying speed is constant, and the culm is held in a sideways posture, and the horizontally rotating type rear conveying device 8 and the starting end of the vertically rotating type threshing feed chain 2 that conveys in substantially the same direction are provided. The shell of a combine harvester is equipped with a vertically rotating type relay conveying device 19 that changes speed in synchronization with the speed change of the rotary type rear conveying device 8 and that clamps and conveys the shell culm in the same sideways posture as the feed chain 2. In the culm conveying device, the horizontally rotating rear conveying device 8 is placed at an intermediate position between the feed chain 2 and the relay conveying device 1 in the culm length direction.
At the same time, the clamping rail 25 that acts on the conveyance start end of the feed chain 2 is extended rearward from a position outside the body of the relay conveyance device 19 near the start end of the relay conveyance device 19 in plan view, and Then, the first half of the clamping rail 25 is placed along the conveying surface of the relay conveyance device 19, and the second half is applied to the feed chain 2 immediately after the clamping action of the relay conveyance device 19 is completed, so that the first half is relay conveyed. A culm conveying device for a combine harvester configured as a stock guide for culms that are pinched and conveyed by a device 19.