JPH0870678A - Automatic feed chain stopping device for combine harvester - Google Patents

Abstract

PURPOSE: To provide an automatic feed chain stopping device capable of surely relaying grain culms from a grain culm conveyor to the feed chain. CONSTITUTION: This automatic feed chain stopping device is obtained by providing an automatic stopping device capable of automatically stopping at least each of rotating parts of a reaping pretreatment device 10 and the feed chain 3 of a thresher 4 in relation to the lifting transfer of the reaping pretreatment device 10, grain culm detecting sensors 13a, 13b to detect grain culms in conveyance in the front and rear parts of a grain culm feeding and conveying device 9, and is constituted so as to function for stopping when of the grain culm detecting sensors 13a, 13b becomes a non-detectable state after the start of the lifting transfer of the reaping pretreatment device 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a feed chain automatic stop device for a combine, which is used for a self-removing combine.

[0002]

2. Description of the Related Art Conventionally, a combine harvester reaches the end of the field during the cutting operation, and when the undercarriage pretreatment device mounted on the front part of the undercarriage is raised to the non-working position when turning the undercarriage, Relatedly, there is a configuration in which the rotating parts of the pre-mowing treatment device and the feed chain of the threshing device are stopped.

However, since the conventional type of this construction raises the cutting pretreatment device and stops it at a fixed time, the grain cutting and feeding device of the cutting pretreatment device and the filter of the threshing device. -The relational angle with Dochien gradually changes with the rise of the pre-mowing treatment device, making it impossible to smoothly transfer grain culms.

[0004]

SUMMARY OF THE INVENTION In this type of combine, it is necessary to eliminate spills in the automatic feed chain stopping device and to ensure reliable inheritance. When the mowing pretreatment device starts to rise as a problem of the conventional combine, the start end of the feed chain of the stationary side threshing device and the end of the grain culm feeding and conveying device of the ascending side mowing pretreatment device As the relationship angle rises, the deviation increases and the inherited transfer lacks certainty, causing spillage.

The present invention is intended to solve the above-mentioned defects in the prior art, in which the grain culm feeding / conveying device is stopped even when the grain culm is sandwiched, so that spillage of grain culm is minimized. It is something to do.

[0006]

The present invention takes the following technical means in order to solve the above problems. That is, on the chassis 2 having the traveling device 1,
The threshing device 4 provided with the dochien 3 is mounted so that the grain culm supply port 5 is located at the front side, and in front of the threshing device 4, the grain culm raising device 6, the reaping device 7, and the grain culm scraping conveyance A pre-mowing treatment device 10 having a device 8 and a grain culm feeding / conveying device 9 is provided so as to be pivotally connected by an elevating device 11 so as to be able to move up and down between an upper non-working position and a lower working position. When the processing device 10 is moved up, an automatic stop device 12 for automatically stopping at least the rotating parts of the pre-reaping processing device 10 and the feed chain 3 of the threshing device 4 is provided in association therewith. Is a grain culm detection sensor 13a, 13b for detecting a transported grain culm in its front and rear portions.
And the automatic stop device 12 is provided with the grain culm detection sensor 13a, after the pre-mowing treatment device 10 starts moving upward.
13b is a feed chain automatic stop device in a combine configured to stop when one of the 13b is in a non-detection state.

[0007]

EXAMPLE First, the structure will be described. Chassis 2
It has a traveling device 1 composed of a chlora, and is configured to be able to travel not only in dry fields but also in wet fields without sinking.
The threshing device 4 has a handling chamber 15 in which a handling barrel 14 is internally mounted, a feeding chain 3 is provided along the handling chamber 15, and a sorting chamber is provided on the lower side. There is. The feed chain 3 is configured to be transmitted from the handle shaft 16 via the gear box 17, and the gear box 17
Is equipped with a clutch.

A control motor 18 is driven by an output from a controller 19, which will be described later, so that the clutch can be operated intermittently. 20 is a straw cutter 21 is a straw cutter. The threshing device 4 configured as described above is mounted on the chassis 2 with the grain culm supply port 5 on the front side.

The mowing pretreatment device 10 includes a pretreatment frame 2
2 is provided with a weeding rod 23, a grain culm raising device 6, a reaping device 7, a grain culm scraping and conveying device 8 and a grain culm supply and conveying device 9 from the front side, and the grain culm in the field is mowed to the threshing device 4. Transport,
It can be supplied. That is,
It is fixed to the front end portion of the pretreatment frame 22 so that the grain culms in the field are weeded as it moves forward.

The grain culm raising device 6 is composed of a raising case 25 that is rotated by the raising lug 24 projecting on the raising side to cause an overlaid grain culm, and is placed behind the weeding rod 23. The lower part is tilted forward and the upper part is tilted backward.
Reference numeral 7 denotes a reaping device, which is attached to the bottom of the pretreatment frame 22. The grain culm scraping and conveying device 8 is provided from above the reaping device 7 toward the upper rear portion, and the grain culm cut by the reaping device 7 can be scraped and conveyed backward.

[0011] The grain culm feeding and conveying device 9 is a stock source conveying chain 2.
6 and the tip conveying lug 27, and the structure is configured such that the starting end portion faces the end portion of the grain stalk scraping conveying device 8 and the end portion faces the starting end portion of the feed chain 3 to convey the grain culm.
The grain culm supply / conveyance device 9 is configured so that the handling depth can be adjusted. And the grain culm detection sensor-13a, 13
b is provided in two places of the starting end part and the terminal part of the grain culm supply / conveyance device 9, and is configured to detect the presence or absence of the transported grain culm. Then, the both grain culm detection sensors 13a and 13b are configured to transmit the detection result as a signal to the controller 19.

The pre-mowing treatment device 10 configured as described above
Is a pretreatment frame 22 on the front side of the threshing device 4.
The rear part is pivotally attached to the support base 28 of the chassis 2, and the hydraulic cylinder 29, which is the lifting device 11, is configured to be freely rotatable up and down. When the pre-cutting device 10 starts to move up by the hydraulic cylinder-29, the transmission to the grain culm raising device 6, the reaping device 7, the grain stalk scraping transfer device 8, and the grain stalk supply transfer device 9 is interrupted. Although the automatic stop device 12 is configured as described above, the automatic stop device 12 is a grain culm detection sensor-1.
3a and 13b are related structures, and both sensors-13
Either a or 13b does not detect the culm, OFF
It is configured to operate when the state becomes.

In this case, the feed chain 3 has a structure in which the control motor 18 is operated and the clutch is operated based on the signal output from the controller 19 in connection with the above-mentioned stop operation. There is. In the case of the embodiment shown in FIG. 2, the threshing part sensor 30 is provided at the starting end of the feed chain 3.
When a pressure higher than a predetermined value due to the transported grain culm is sensed, the rotating predecessor 10 and the threshing device 4 are stopped. With such a configuration, the threshing device 4 can be stopped before the destruction even if the feed culm 3 is clogged with grain culms and the work can be performed safely. Further, the threshing section sensor 30 provided at the starting end portion of the feed chain 3 can be effectively utilized even when the threshing device is driven to handle pillows, and when the feed chain 3 is clogged with grain culms. , It can be stopped and processed safely before destruction.

Next, the operation will be described. First, when the harvesting and threshing work is started while starting the prime mover and driving the rotating parts of the machine body, the lying grain culms in the field are weeded by the weeding rods 23 in the front part, and then from above to below. The upright lug 24, which is rotating toward the front, is engaged with the pull-up lug 24 to be raised, and the upright state is established. Then, the grain culm reaches the harvesting device 7 and is harvested, and at the same time, the grain culm conveying device 8
And is conveyed while being scraped backward and upward.

The grain culm which has been conveyed in this way and has reached the terminal end of the grain culm scraping and conveying device 8 is carried by the stock yuan transport chain 26 and held by the stock yuan transport chain 26. It reaches 27, is engaged, and is further conveyed to the upper rear part. At this time, the grain culm feeding / conveying device 9 detects the length of the grain culm and automatically adjusts the handling depth to feed the grain culm from the end of the grain to the beginning of the feed chain 3.

As described above, the grain culms in the field are continuously cut and transported, threshed and sorted, and then the grains are carried out of the machine and stored in the Glen tank, and the straw is discharged. It is conveyed by the straw chain 20, reaches the straw cutter-21, is cut, and is scattered on the field scene after cutting. In the above process, the grain culm detection sensors 13a and 13b are
The stock culm feeding chain 26 constituting the grain culm supply / conveying device 9 constantly detects the grain culm being conveyed in a sandwiched state, and transmits the result to the controller 19.

Then, the combine reaches the end of the field after cutting the grain culm row and moves to the turning operation of the chassis 2. First, the combine pretreatment device 10 is raised to the non-working position. At that time, the grain culms that have already been cut are transported to the threshing device 4 by the grain stalk scraping transport device 8 and the grain stalk supply transport device 9. In this way, the last grain culm reaches the grain culm supply and conveyance device 9 and the grain culm detection sensors 13a, 13 are detected.
When there is no transported grain culm on either side of b, the grain culm detection sensor 13a does not detect it, and it is turned off, and the result is transmitted to the controller-19. Then, the controller 19 outputs an output signal based on the input signal, drives the control motor 18 to disengage the clutch, and stops the feed chain 3.

Therefore, since the grain culm layer in the middle of transportation remains in a state of being held by the stopped grain culm supply and transportation device 9,
As in the conventional case, it is possible to prevent the spillage that has occurred when the grain culm that has been reduced last is transferred from the grain culm supply and transport device 9 to the feed chain 3. Furthermore, since the transmission of each part of the transported grain culm is still on the side of the pre-cutting processing device 10, the relation angle with the grain culm supply and transportation device 9 that rises with respect to the fixed feed chain 3 changes. It is possible to stop the inheritance before doing so and prevent spillage at the time of inheritance.

[0019]

As described above, according to the present invention, the threshing device 4 provided with the feed chain 3 is placed on the chassis 2 having the traveling device 1 so that the grain culm supply port 5 is located on the front side. A cutting pretreatment device 10 having a grain culm raising device 6, a mowing device 7, a grain stalk scraping transport device 8 and a grain stalk supply transport device 9 is mounted in front of the threshing device 4 by an elevating device 11. When the cutting pretreatment device 10 is moved upward, it is provided in a pivotally connected manner so that it can be moved up and down between a non-working position and a lower working position.
An automatic stop device 12 for automatically stopping the rotating parts of 0 and the feed chain 3 of the threshing device 4 is provided, and the grain culm feeding / conveying device 9 detects grains at the front and rear of the grain culm feeding / conveying device. The culm detection sensors 13a and 13b are provided, and the automatic stop device 12 is stopped when one of the grain culm detection sensors 13a and 13b is in the non-detection state after the pre-mowing treatment device 10 starts to move upward. Since the above-mentioned configuration is adopted, there is a feature that the culm spillage is extremely reduced during the transfer and transfer between the grain culm feeding and conveying device and the feed chain, and the reliable grain culm can be conveyed.

[Brief description of drawings]

FIG. 1 is a side view showing an essential part of an embodiment of the present invention.

FIG. 2 is a plan view showing an embodiment of the present invention.

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

FIG. 4 is a plan view of the combine according to the embodiment of the present invention.

FIG. 5 is a block circuit diagram showing a control device according to an embodiment of the present invention.

[Explanation of symbols]

1 Traveling device 2 Chassis 3 Feedochien 4 Threshing device 5 Grain culm supply port 6 Grain culm raising device 7 Mowing device 8 Grain rake scraping and conveying device 9 Grain culm feeding and conveying device 10 Mowing pretreatment device 11 Elevating device 12 Automatic stop Device 13a, 13b Grain culm detection sensor

Claims (1)

[Claims] 1. A thresher equipped with a feed chain is mounted on a chassis having a traveling device so that a grain culm supply port is located on the front side, and a grain culm is provided in front of the thresher. A mowing pretreatment device having a raising device, a mowing device, a grain stalk scraping conveying device, and a grain stalk feeding and conveying device is pivotally mounted so that it can be moved up and down between an upper non-working position and a lower working position by an elevating device. Provided in a linked manner, and provided with an automatic stop device for automatically stopping at least the rotating parts of the pre-cutting device and the feed chain of the threshing device in association with the upward movement of the pre-cutting device. That the grain culm supply / conveyance device is provided with a grain culm detection sensor for detecting the presence or absence of a conveyed grain culm in the front part and the rear part thereof; After starting the movement, - While it was configured to stop operating when it becomes non-detection state, Fi in combine to established by a combination of each of the above constituent elements - Dochien automatic stop device