JP3238470B2 - Upper auxiliary transfer device of combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a transport mechanism in a combine harvester.

[0002]

2. Description of the Related Art Combine grain culm is transported by gripping the spike side with an upper transport device, the stock side with a lower transport device, and a vertical transport device. It is inherited by the chain. But if the culm is long,
Since the tip is located higher than the upper transfer device, the tip cannot be fully gripped, delays the transfer of the tip (in the threshing unit, the cereal culm does not face vertically above the handling cylinder), and the culm during transport In addition, since the upper conveying device grips the stem portion, when the stem contains moisture, the tine may be damaged. Furthermore, with the recent miniaturization of the combine, the total length of the reaping section has also been shortened, and the transfer section from the lower transport device to the vertical transport device has been moved forward. Since the root of the reaping unit is gripped and conveyed upward by the chain, the root of the stalk reaches the inheriting part, so that the grain stalk rises and the inheritance to the vertical conveying device on the pedestal side becomes insufficient. It is. Therefore, in the present invention, so as to be able to grip the tip of the long culm,
The upper auxiliary transfer device was disposed further above the upper transfer device.

[0003]

However, when the grain culm to be conveyed is rice or the like having a high grain-removing property, there is a possibility that the grain is shed by the tine of the upper auxiliary carrier during the transport. Further, if the height of the apparatus is not optimal, it may not be possible to accurately grasp the ears of the cereal stem, and in some cases, transport failure may occur. The present invention, in order to solve the above problems,
The following method is used.

[0004]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. In claim 1, the cutting section tip
The cereal stem is raised by the raising device 1 and the scraping belt 2
After cutting the stalks raked in with the cutting blade 3, at the rear
Lower transport device 4 arranged on the left and right to collect in one place
L and 4R transport stocks and gather at the rear
With upper transfer devices 5L and 5R arranged on the left and right
The tip is transported, and the stock side is transferred by the vertical transport device 7
To the right upper conveying device 5R extended to the rear.
The culms in the standing state are laid down horizontally, and
At the entrance of the feed chain 9, the right upper transfer device 5R
Detachment is carried out via the inheritance auxiliary transfer device 8 arranged below the rear end.
Y-shaped transfer structure inherited to feed chain 9 of grain section B
At the upper part of the upper left transfer device 5L
A transfer device 6 is provided, and a drive shaft 6 of the upper auxiliary transfer device 6 is provided.
a is disposed at the rear end of the upper auxiliary transfer device 6,
The starting end of the tine T1 of the auxiliary transport device 6 is the upper left transport device.
5L tine T2 is configured to be rotatable to the non-operating range.
It is. According to the second aspect, the raising of the tip of the reaping portion is performed.
Raise the cereal stem with the rubbing device 1 and scrape with the scraping belt 2
After the harvested grain stalks are cut by the cutting blade 3, they are placed in one place at the rear.
Lower transport devices 4L and 4R arranged on the left and right to collect
To transport the stocks and collect them in one place at the rear
The tips are transported by the upper transport devices 5L and 5R arranged on the left and right.
Further, the stock side is inherited and transported by the vertical transport device 7, and
Is further transported by the right upper transport device 5R extended rearward.
And lay the culm in a horizontal state horizontally,
At the rear end of the right upper transfer device 5R
Of the threshing unit B via the transfer auxiliary conveying device 8
In the Y-shaped transfer structure inherited to the feed chain 9,
The length of the cereal stem is detected by the signal from the handling depth detection sensor,
Move the upper auxiliary transport device 6 up and down according to the length of the grain.
It is configured to slide .

[0005]

[Action] If the ears have high shedding property during transport of long culm, if the starting end of the upper auxiliary transport device is rotated inside the tine action range of the upper transport device, The upper auxiliary transport device is transported outside the tine working area, and the spike is transported without touching the tine of the upper auxiliary transport device. Further, based on a signal from the handling depth detection sensor, the upper auxiliary transport device grips the grain stalk ear at the optimum position.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention; FIG. 1 is an overall side view of a combine using the present invention, FIG. 2 is a side view of a reaper, FIG.
FIG. 5 is a plan view showing a left-right rotation configuration of the upper auxiliary transport device of the present invention, FIG.
FIG. 7 is a side sectional view of an upper auxiliary transport device having a vertical sliding structure by manual control, FIG. 7 is a schematic front view showing the relationship between the tine working length of the upper auxiliary transport device and the upper transport device, and FIG. FIG. 9 is a plan view showing the upper auxiliary transport device attached to a position facing the transport device, and FIG. 9 is a front view thereof.

First, an outline of the overall structure of a combine will be described with reference to FIG. A frame F is mounted on the crawler traveling device G, on which a threshing unit B and a sorting unit C are mounted on one side of the machine body left and right, and a driver's seat D and a Glen tank E are mounted on the other side. The reaping section A is located at the forefront of the machine body in front of the threshing section B, and the culm transport mechanism according to the present invention uses the feed chain 9 on the side of the threshing section B in the reaping section A.
It is arranged toward. In addition, 10 of the threshing unit B is a handling drum.

The Y-shaped transport structure in the reaper A will be described with reference to FIGS. The combine in the present embodiment has a four-row cutting structure, in which the culm is raised by the raising device 1 at the tip of the mowing part, raked by the raking belt 2, and the root of the cereal culm is cut by the cutting blade 3. . The grain stalks cut by the cutting blade 3 are gripped by the left and right lower transporting devices 4L and 4R, and grip the spikes by the upper transporting devices 5L and 5R to form a Y-shaped transporting device in plan view. From one place in the back,
Further gripping the strain base side at the longitudinal transport device 7, the tip while the gripped at the upper transfer device 5R, the culms of the upright state lies down in horizontally, through the taking over auxiliary transport apparatus 8, the threshing section The feed chain 9 is inherited by the feed chain 9 of FIG. Here, the vertical transport device 7 rotates based on a detection value of a later-described handling depth detection sensor so that the cereal stalk is transported to the optimal position with respect to the handling cylinder 10 on the feed chain 9, and the handling is performed. It adjusts the depth.

The upper auxiliary transfer device 6 according to the present invention is shown in FIG.
As shown in FIG. 7 to FIG. 7, it is disposed on the upper left transfer device 5L, but has the same configuration as that described below.
An upper auxiliary transport device may be provided on the right upper transport device 5R. First, the driving structure will be described. The drive shaft 6a of the upper auxiliary transfer device 6 is connected to a driven shaft 5b at the rear end of the upper transfer device 5L via a spline shaft 12. The drive shaft 5a of the upper transfer device 5L is connected to a mowing unit drive shaft. The drive shaft 6a of the upper auxiliary transport device 6 is driven by driving a driven shaft 5b by winding a chain around the driven shaft 5b.

The upper auxiliary transporting device 6 has a start end rotatable left and right with the drive shaft 6a as a fulcrum, and a fixed bracket 1 is mounted on a case upper portion of the upper transporting device 5L.
4a and 14b are provided at two locations, and the upper auxiliary transport device 6
Can be attached to the fixed bracket 14 below the case,
The upper fixing plate 15 is suspended. The fixing bracket 1
4 is provided with a long hole, and the locking pin 15a of the upper fixing plate 15 is inserted into the long hole and freely slides up and down. That is, in combination with the spline structure between the drive shaft 6a and the driven shaft 5b, the upper auxiliary transport device 6 is configured to be vertically slidable with respect to the upper transport device 5L.
Thus, the upper auxiliary transfer device 6 is connected to the upper transfer device 5L.
The upper fixing plate 14 is fixed to the fixing bracket 14a.
And fixed to the X position (FIG. 3) in plan view, and to the Y position in plan view by locking to the fixing bracket 14b. The spline of the drive shaft 6a
An elongated hole 6b (FIG. 4) is provided at the lower part of the case of the upper auxiliary transport device 6 for the locking position of the locking bolt of the flange 13 to which the shaft 12 is fitted. 6 can be fixed at two X and Y positions.

In this way, the upper auxiliary transport device 6 can be fixed at the X position and the Y position in plan view. When the grain culm is a long culm, the upper auxiliary transport device 6 is fixed at the X position, The tip of a long culm that cannot be fully gripped by the tine T2 of the transport device 5L is gripped by the tine T1 of the upper auxiliary transport device 6 . When the upper auxiliary transfer device 6 is fixed at the Y position, the tine T1 of the upper auxiliary transfer device 6 is set to be larger than the working area of the tine T2 of the upper transfer device 5L because the tine T1 is thrown away by the gripping. The inner limb does not work, and the culm is gripped and transported only by the tine T2 of the upper transport device 5L.

Here, the relationship of the tine length when the upper auxiliary transporting device 6 is fixed at the X position in plan view will be described. As shown in FIG. 7, the length of the tine T1 is longer than the length of the tine T2, and when the upper auxiliary transport device 6 is at the X position, the operating length of the tine T1 is
It is configured to be longer than the operation length of. This is because the ears of the cereal stalks become wider at the tip and the number of grains increases,
This is because the transport guide 22 is also wider toward the upper part, and if the operating lengths of both tines are the same, the grip of the tip by the tines T1 becomes insufficient. That is, in order to securely grasp the tip of the grain stem, the operating length of the tine T1 is longer than that of the tine T2. P is a cereal stem.

If the grain stem is bent in the middle, even if the tines T1 and T2 are provided on the same side, the tip of the grain stem escapes from the working length of the tine T1. As a countermeasure, the tine T1 and the tine T2 are located opposite to each other, that is, as shown in FIGS. 8 and 9, the upper auxiliary transport device 6 is moved relative to the upper transport device 5L via the transport path. It is also possible to arrange them so that they face each other. 8 and 9 disclose a configuration in which upper auxiliary transfer devices 6L and 6R are provided for both upper transfer devices 5L and 5R.

Next, the vertical sliding structure of the upper auxiliary transport device 6 will be described. As described above, the upper auxiliary transfer device 6
Is fixed at the X position and the Y position in plan view, but is slidable up and down in the vertical direction so that the tip of the cereal stem can be gripped at the optimum position. Referring to FIG. 5, the drive shaft 6a of the upper auxiliary transport device 6 and the upper transport device 5
A feed screw 16 is provided on the outside of the spline shaft 12 via the L driven shaft 5b, and meshes with a worm 17 in a worm case 18. The worm 17 is driven by a motor 19. The motor 19 is driven by a sensor S1 and a sensor S2 which are handling depth detection sensors for controlling rotation of the vertical transport device 7 for adjusting the handling depth. Is controlled by a signal sent from the control unit 20 based on the detection of the worm 17 by the motor 19.
With the rotation of the spline 12, the spline 12 slides up and down together with the feed screw 16. Also, as mentioned above,
The upper fixing plate 15 has a configuration in which a locking pin is inserted into a long hole with respect to the fixing brackets 14a and 14b, and the locking pin is slidable up and down. With such a configuration, in the process of adjusting the handling depth, the upper auxiliary transport device 6 adjusts the vertical position in accordance with the change in the tip length of the grain culm.

FIG. 6 discloses a configuration in which the upper auxiliary transport device 6 is manually adjusted up and down. That is, the worm control structure driven by the motor in FIG. 5 is eliminated, and the vertical sliding of the spline shaft 12 is manually controlled to adjust the vertical direction. Of course, the upper fixing plate 15
The structure in which the locking pin is locked to the long hole of the fixing bracket 14 is the same, and can be slid up and down. In addition,
In FIG. 6, the drive shafts of the lower transfer device 4L and the upper transfer device 5L are constituted by an integrated drive shaft 21, and the drive shaft 21 and the drive shaft 6 a of the upper auxiliary transfer device 6 are connected by a spline 12. The structure is such that the driving force is transmitted directly.

The upper auxiliary transfer device 6 includes a spline
Since the structure is such that it is attached to the upper part of the upper transfer device 5L by the shaft connection by the shaft 12 and the locking of the fixed bracket 14 and the upper fixed plate 15, the detachment is easy and the maintenance is easy. Further, since the drive is transmitted through the spline, strict position adjustment is not required, and therefore, it is not necessary to form a high-precision flange or the like, and the assembling property is improved.

[0017]

According to the present invention, the following effects can be obtained by the above configuration. As in claim 1,
The upper auxiliary transfer device 6 is arranged above the upper left transfer device 5L.
The ears of the cereal stems are securely locked by
To prevent transport delays, culm breaks, transport clogging, etc.
Smooth grain culm transport became possible. Also, the upper part
The operating range of the tine T1 of the auxiliary transport device 6 is
A structure capable of rotating to the non-operating range of the tine working length of the feeding device 5L.
When transporting rice or the like, which has high shedding performance,
Rotate the auxiliary transfer device 6 to transfer the spike side of the grain stem to the upper left side
By gripping and transporting only the tine T2 of the device 5L
To prevent shedding. The method according to claim 2, wherein
The auxiliary transfer device 6 is connected to the sensors S1 and S2 for detecting the handling depth.
The vertical position can be adjusted based on the detection of
Then, the upper auxiliary transporting device 6 moves the tip of the grain stalk to the optimal position.
As a result, the certainty of the conveyance is increased.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine using the present invention.

FIG. 2 is a side view of a reaper.

FIG. 3 is a plan view of the same.

FIG. 4 is a plan view showing a left-right rotation configuration of the upper auxiliary transport device of the present invention.

FIG. 5 is a side sectional view showing the vertical sliding structure.

FIG. 6 is a side sectional view of an upper auxiliary transport device having a vertical sliding structure under manual control.

FIG. 7 is a schematic front view showing the relationship between the tine working length of the upper auxiliary transport device and the upper transport device.

FIG. 8 is a plan view showing an upper auxiliary transport device attached to a position facing the upper transport device via a transport path.

FIG. 9 is a front view of the same.

[Explanation of symbols]

 A Cutting unit S1, S2 Handling depth detection sensor 4L, 4R Lower transport device 5L, 5R Upper transport device 6 Upper auxiliary transport device 7 Vertical transport device 8 Inheritance auxiliary transport device

Claims (2)

(57) [Claims] 1. A stalk of cereals in a raising device 1 of a cutting section tip.
And the grain stalks raked by the rake belt 2
After mowing at 3, right and left to gather at one place at the rear
The stock carrier is transported by the lower transport devices 4L and 4R arranged in
Also on the left and right so that it gathers in one place at the rear
The heads are transported by the part transport devices 5L and 5R, and
Inherited and transported by the vertical transport device 7, the tip is extended backward.
Transported further by the upper right transport device 5R.
The culm lays down horizontally, and the entrance of the feed chain 9
, The inheritance arranged at the lower part of the rear end of the upper right conveying device 5R
Feed chain of threshing section B via auxiliary transport device 8
In the Y-shaped transfer structure inherited to 9, the upper left transfer device
The upper auxiliary transfer device 6 is disposed further above the device 5L.
The drive shaft 6a of the upper auxiliary transport device 6
6, the tine T1 of the upper auxiliary transfer device 6
Is the non-operation of the tine T2 of the upper left transfer device 5L.
An upper auxiliary transport device for a combine, wherein the upper transport device is configured to be rotatable to a range . 2. Grain stalks with a raising device 1 at a cutting section tip.
And the grain stalks raked by the rake belt 2
After mowing at 3, right and left to gather at one place at the rear
The stock carrier is transported by the lower transport devices 4L and 4R arranged in
Also on the left and right so that it gathers in one place at the rear
The heads are transported by the part transport devices 5L and 5R, and
Inherited and transported by the vertical transport device 7, the tip is extended backward.
Transported further by the upper right transport device 5R.
The culm lays down horizontally, and the entrance of the feed chain 9
, The inheritance arranged at the lower part of the rear end of the upper right conveying device 5R
Feed chain of threshing section B via auxiliary transport device 8
In the Y-shaped transfer structure inherited to
The length of the cereal stem is detected based on the signal from the
To move the upper auxiliary transport device 6 up and down.
Upper auxiliary conveyor device combine, characterized in that the.