JPS585642B2 - combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a device that is equipped with a raking and conveying device that is raised above a reaping device and conveys the harvested grain culm rearward and upward, and is mounted on the rear of the machine at a position above and behind the reaping device. The present invention relates to a combine harvester in which a clamping conveyance chain for conveying reaped grain culms is arranged in the feed chain of a threshing device.

In this type of combine harvester, the starting end of the clamping conveyance chain can be vertically changed around supporting points at the intermediate conveyance portion and the conveyance terminal end, so that the lifting chain located at the terminal end of the raking conveyance device can be moved up and down. The handling depth is adjusted by changing the transfer gripping position relative to the harvested grain culm.

However, as mentioned above, in order to obtain the desired handling depth adjustment amount simply by changing the vertical position of the clamping conveyance chain, the amount of chain position change is large. If it becomes difficult to perform the changing operation quickly, or if the position of the clamping conveyance chain is to be changed significantly up and down, for example, it is necessary to It is necessary to provide a large space to avoid contact between the starting end of the clamping and conveying chain and the pulling device, resulting in an increase in the size of this area.

The present invention aims to solve the above-mentioned problem, and its characteristic configuration is that a raking and conveying device that is raised above the reaping device and conveys the reaped grain culms rearward and upwardly is disposed obliquely, and In a combine harvester in which a gripping conveyance chain is arranged above and behind the reaping device to lift and transport the harvested grain culm by holding it in the feed chain of the threshing device mounted at the rear of the machine, the starting end side of the gripping conveyance chain is vertically moved. The structure is configured so that the position can be changed, and the starting end of the clamping conveyance chain is moved to the starting end side of the scraping conveying device at the upper part of the scraping conveying device as the position is changed upward, and when the position is changed downward. Accordingly, it is configured to be moved to the terminal end side of the scraping and conveying device, thereby adjusting the handling depth, and this configuration provides the following effects.

That is, when a short culm is produced, the starting end of the clamping and conveying chain in the lowered position is used to clamp the reaped grain culm that has been lifted and conveyed to some extent backward and upward by the raking conveyance device, and when a long culm is produced, the starting end of the clamping and conveying chain is held in the ascending position. At the starting end of the clamping conveyance chain located at Since this can be carried out within the range including the amount of upward transfer by the raking conveyance device, the starting end of the clamping chain can be The amount of change in the vertical position of the clamping chain is small, making it easy to quickly change the vertical position of the clamping chain for adjusting the handling depth, and the starting end of the clamping chain and the pulling device to be installed relatively close to each other. This also makes it possible to make this part more compact.

Embodiments of the present invention will be described below with reference to the drawings.

The figure shows a combine harvester in which a threshing device 2 is mounted on a crawler traveling device 1, and a reaping pre-processing section 3 is connected to the front part of the machine.

The reaping pre-processing section 3 is a raising and reaping section 4 consisting of a raising device 4a and a reaping device 4b provided near the ground, and raises and reaps the grain culm to be planted, and the harvested grain culm is removed by the reaping device 4.
Grain culms are conveyed rearward and upwardly by a raking conveyance device 5 installed diagonally above b, and the grain culms from the raking conveyance device 5 are clamped to the feed chain 7 of the threshing device 2 by a clamping conveyance chain 6. Configured to be transported.

The clamping conveyance chain 6 is configured such that its conveyance terminal end side is pivotally connected to the machine body so as to be rotatable around the horizontal axis X, and its start end side is configured to be able to change its vertical position, and the lifting device 4a It is interlocked and connected to the swinging lever 8 supported by the guide frame 9 via a bi-folding link mechanism, and the vertical position is forcibly changed as the swinging lever 8 swings back and forth. It is configured to be fixed at a required vertical position by the action of being engaged and fixed at a required swinging position.

Further, the starting end of the clamping conveyance chain 6 is moved to the starting end side of the scraping conveying device 5 at the upper part of the scraping conveying device 5 as the position is changed upward, and the starting end of the pinching conveying chain 6 is moved to the starting end side of the scraping conveying device 5 as the position is changed downward. transferred to the terminal side of the conveyance device 5, and
When the chain 6 is in its lowest position, it is located near the upper rear end of the scraping conveyance device 5, and when the chain 6 is in its highest position, it is located near the lower starting end of the scraping conveyance device 5.

Therefore, as the vertical position of the starting end of the clamping conveyance chain 6 is changed, as shown in FIG. When the clamping conveyance chain 6 is at the highest position, as shown by the imaginary line in FIG. 2, the clamping conveyance chain 6
A mechanism is configured to adjust the handling depth by changing the gripping position of the grain culm in the culm length direction so that the starting end of the grain culm clamps the middle part of the grain culm which is hardly subjected to the conveying action of the raking conveyance device 5. ing.

[Brief explanation of the drawing]

The drawings illustrate embodiments of the combine harvester according to the invention,
FIG. 1 is an overall side view of the combine, and FIG. 2 is a side view of the front part of the machine. 4b... Reaping device, 5... Scraping conveyance device, 6... Clamping conveyance chain, 7...
・Feed chain.

Claims (1)

[Claims] 1. A scraping and conveying device 5 is installed diagonally above the reaping device 4b to convey the harvested grain culm rearward and upward, and a feed of the threshing device 2 mounted at the rear of the machine is installed at a position above and behind the reaping device 4b. In a combine harvester in which a chain 7 is provided with a clamping conveyance chain 6 that lifts and conveys the harvested grain culms by clamping them, the starting end side of the clamping conveyance chain 6 is configured to be able to change the vertical position, and the starting end of the clamping conveyance chain 6 is configured such that the vertical position can be changed. is moved to the starting end side of the scraping and conveying device 5 at the upper part of the scraping and conveying device 5 as the position is changed upward, and as the position is changed downward, the scraping and conveying device 5
A combine harvester characterized in that the combine harvester is configured to be moved to the terminal side of the combine harvester, thereby adjusting the handling depth.