JPH0416968Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a structure of a pre-processing section of a combine harvester in which a reaped grain culm retaining and conveying device is also used as a lifting device, thereby simplifying the structure of the device.

[Prior art]

The structure of the conventional pre-processing section of this type of combine is as follows:
As shown in FIGS. 6 and 7, there is a locking and conveying device 01 that extends from the front of the reaping device to the vicinity and upper part of the grain culm supply port of the rear threshing device, and a conveying path is provided to the front side of this locking and conveying device 01. Raising devices 01 facing each other
6, and a plant clamping and conveying device 04 on the lower rear side of the locking and conveying device 01, and a plurality of grain culms for conveyance that are pulled up and reaped on the front side of the lifting device and the locking and conveying device. The structure was such that the grains were conveyed to the threshing feed chain by the cooperation of a single locking conveyance device and stock clamping conveyance device (for example,
Publication No. 52539).

[Problem that the invention attempts to solve]

However, since this device is of a type in which multiple grain culms are conveyed using a single locking conveyance device and a stock clamping conveyance device, the locking conveyance device that extends near and above the grain culm supply opening is used. The relative distance between the stock clamping and conveying device that reaches the starting end of the threshing feed chain becomes larger toward the rear, and the locking conveyance device and the conveying grain culm are controlled by the handling depth adjustment function of the stock clamping and conveying device. The combing force caused by the two points of relative movement between grain culms becomes large, especially when there is a lot of entanglement due to multiple grain culms being transported, increasing the occurrence of ear breakage and causing damage to the grain culms. There were transportation problems such as cutting and falling off from the stock clamping and transportation device.

An object of the present invention is to provide a structure that can be added to the locking conveyance device to solve the conveyance problems associated with the conventional structure.

[Means to solve the problem]

The feature of the present invention is that the pre-processing section structure of the combine harvester as described above is configured as follows. In other words, a single stock clamping and conveying device is provided which clamps the stalks of all the grain culms harvested by the reaping device and transports them to the starting end of the threshing feed chain. A plurality of locking and conveying devices that separate and convey the tip side of grain culms are installed in parallel in the left-right direction of the machine from the front of the reaping device to near and above the grain supply port of the rear threshing device. The main clamping conveyance device and the plurality of locking conveyance devices are configured to feed the entire harvested grain culm to the starting end of the threshing feed chain and to the grain culm supply port of the rear threshing device.

[Effect]

In other words, by distributing the grain culms that have been harvested in multiple rows to multiple locking conveyance devices and reducing the amount of transportation carried by each locking conveyance device, the phenomenon of grain culms becoming entangled with each other is also reduced. The combing force applied to the grain culms during transport can be kept to a small level, and transport problems such as the occurrence of ear breakage, cutting, or falling out of the stock clamping and transporting device can be significantly suppressed. Furthermore, since there is a single stock holding and conveying device, the delivery to the threshing feed chain can be carried out smoothly.

[Effect of idea]

Therefore, by using a configuration that restricts modification by sharing the stock clamping and transporting device and arranging only a plurality of locking and transporting devices in parallel, modification costs can be kept to the minimum necessary, and transportation costs can be reduced. We were able to minimize problems and improve overall threshing efficiency.

〔Example〕

As shown in FIGS. 1 to 3, three locking and conveying devices 1A, 1B, and 1C are also used as lifting devices.
are arranged side by side on the left and right, and this locking conveyance device 1
A reaping device 2 that reaps the grain culms raised by A, 1B, and 1C, a rear feed device 11 that clamps the planted grain culms in each row and conveys them rearward from just before cutting, and a packer 9 are provided. A single stock head clamping and conveying device 4 for transporting the harvested grain culm to the starting end of the threshing feed chain 3 is provided, and this stock head clamping and conveying device 1A, 1B, 1
The pre-processing section structure of the combine is composed of a horizontal feeding section 4A along the C row and a vertical feeding section 4B along the machine traveling direction.

Three sets of two packers 9 are arranged in parallel for each number of reaping rows, and a driving packer 9A is located on the side of the threshing feed chain 3.
A rear feed device 11, 11, 11 of a gripping chain 12 type that shares a drive shaft with the guide gripper 14 is installed in parallel with the guide gripper 14, and the plant side of the planted grain culm raised by the locking and conveying devices 1A, 1B, 1C is Each row is clamped and the clamped grain culms are conveyed rearward while being harvested by the reaping device 2 located behind the front end of the locking and conveying devices 1A, 1B, 1C. Feeding section 4A
The horizontal feeding section 4 of the stock clamping and conveying device 4 in which the clamping chain 15 is integrally wound over the vertical feeding section 4B and the vertical feeding section 4B.
3 at the front end of the vertical feed section 4B.
After merging the strips, the handling depth is adjusted by the vertical feed section 4B, which can swing up and down at its front end fulcrum.
A stock side conveyance device is configured to deliver the conveyed grain culm to the threshing feed chain 3.

A chain 7 extends between the drive wheel body 5 and the idle wheel body 6.
At the same time, the locking claw 8 is interlocked and connected to the chain 7 in an upright working position and a laid down non-working position so as to be able to swing up and down.
A, 1B, 1C, and the rear threshing device 10 is located from the front of the reaping device 2 while the conveyance paths A, B, and C, in which the locking claws 8 are in the working position, are located on the same lateral side. Locking and conveying devices 1A, 1B, and 1C are arranged in parallel near and above the grain culm supply port 10A, and one row of grain culms is pulled up and locked in each conveyance path A, B, and C. It is configured to be transportable, and the stock side is held by a single stock holding and transporting device 4, and the grain culm is smoothly transported while reducing the combing force applied to the grain culms by the locking and transporting devices 1A, 1B, and 1C. It is configured so that it can be done.

As shown in FIG. 2, the locking conveyance device 1A,
Among the locking conveyance devices 1B and 1C, the conveyance speed of the locking conveyance device 1A located on the side farther from the stock clamping conveyance device 4 is set to be sequentially smaller, and the conveyance speed is set to be sequentially smaller.
Due to the cross-feeding action in the locking conveyance device 1A,
When 1B and 1C have the same conveyance speed, the conveyed grain culm
As shown in Q', due to the fact that the tip of the grain is earlier on the 1A side, the feeding posture to the threshing device is not aligned, this can be avoided by changing the conveyance speed between each conveyance path A, B, and C.
The structure is such that the grain culm Q passing through can be delivered to the threshing feed chain 3 in the desired sideways posture at the conveyance end position.

[Another embodiment] The locking conveyance devices 1A and 1C are connected to the conveyance path A,
C facing each other and arranged in a V-shape that widens towards the bottom, and the conveyance path A,
A locking and conveying device 1B, whose total length is slightly shorter than the other two, is interposed in C, and one row of grain culms is locked by the locking and conveying device 1A, and two rows of grain culms are locked by 1B and 1C. While the combing force in the conveying devices 1A, 1B, and 1C is kept small, three rows of grain culms are merged and collected at the end of the conveyance, so that the grain roots are well aligned and the grain culms are fed to the threshing feed chain 3. Delivery can also be carried out more smoothly.

[Brief explanation of the drawing]

The drawings show an embodiment of the structure of the pre-processing section of a combine harvester according to the present invention, and FIG. 1 is a longitudinal cross-sectional view showing a state in which a plurality of locking conveyance devices and a single stock clamping conveyance are used, and FIG. 3 is a schematic plan view showing the stock side clamping and transporting device, FIG. 4 is an overall side view, and FIG. 5 is a front view showing another embodiment of the locking and transporting device; 6 and 7 show conventional examples, respectively, with FIG. 6 being an overall side view and FIG. 7 being an overall plan view. 1A... Locking conveyance device, 2... Reaping device, 3...
... Threshing feed chain, 4... stock clamping and conveying device, 10... threshing device, 10A... grain culm supply port.

Claims (1)

[Scope of utility model registration request] A single stock clamping and conveying device 4 is provided which clamps the stalks of all the grain culms harvested by the reaping device 2 and conveys them to the starting end of the threshing feed chain 3. A plurality of locking and conveying devices 1A that separate and convey the tip side of the grain culms that are clamped are connected from the front of the reaping device 2 to the vicinity and upper part of the grain culm supply port 10A of the rear threshing device 10 on the left and right sides of the machine body. The single stock clamping and conveying device 4 and the plurality of locking and conveying devices 1A are arranged in parallel in the same direction, and the harvested whole grain culm is transferred to the starting end of the threshing feed chain 3,
and a structure of a pre-processing section of a combine harvester, which is configured to send grain to the grain supply port 10A of the rear threshing device 10.