JPH04341114A - Grain culm feeder for combine - Google Patents

Abstract

PURPOSE:To provide the title feeder designed to prevent grain culm wrapping through traveling speed control of combine based on the level of the movement of a grain culm-raking-in auger movable vertically according to the amount of grain culms. CONSTITUTION:A grain culm-raking-in auger 9 is axially set at a rocking plate 18 provided in a vertically movable manner, and the rocking plate is stretchedly pressed downward through a spring 19. The amount of the vertical movement of said auger is detected with a sensor 21 via a projection 20 provided on the rocking plate, and based on the resulting signals, a control unit transmits an output to a variable speed gearing, thereby making a speed change for a traveling device.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain culm feeding device for a combine harvester, and is used in a conventional combine harvester.

0002

[Prior Art] Conventional devices of this type, for example,
The configuration described in Japanese Patent No. 161926 is such that a grain culm scraping auger, which scrapes the harvested grain culm onto a rear conveyor, is tensioned downward via a spring. Therefore, this grain culm scraping auger feeds grain culms to the rear conveyor while moving up and down depending on the amount of grain culms to be harvested, but at that time, if the amount of grain culms exceeds a predetermined amount. - Then, it became difficult to have a smooth scratching action, and winding occurred.

As described above, when the grain culm scraping auger attempts to scrape in more than a predetermined amount, the grain culm gets wrapped around the rotating parts, causing various problems.

0004

[Problems to be Solved by the Invention] In this type of combine harvester, it is required that the harvested grain culm be collected at the starting end of the supply conveyor by a grain culm scraping auger and reliably supplied to the threshing machine. There is. At this time, the grain culm raking auger must perform raking smoothly regardless of the amount of grain culm to be harvested. As in the conventional structure described above, the grain culm scraping auger scrapes the grain culm while moving up and down depending on the amount of grain culm, but when the grain culm exceeds a certain amount, the rotating parts and crank fingers - Consideration is required to prevent the occurrence of wrapping around.

The present invention aims to solve these problems by detecting the amount of movement of a grain culm raking auger that moves up and down depending on the amount of grain culm being harvested, and based on this, various types of It's something you try to control.

[0006]

[Means for Solving the Problems] The present invention takes the following technical means to achieve the above object. That is, a chassis 3 equipped with a traveling device 2 consisting of a crawler 1
A threshing machine 5 is mounted on the top with the grain supply port 4 facing forward. A reaping pretreatment device 6 is connected to the grain culm supply port 4 of the threshing machine 5 so as to be able to freely swing up and down. A scraping auger 9 and a supply conveyor 10 are arranged in this order. The grain culm raking auger 9 is provided to be able to move up and down according to the amount of grain culm to be raked, and the traveling speed is determined by detecting the vertical movement amount of the grain culm raking auger 9. A second invention is a grain culm feeding device for a combine harvester having a controllable structure, in which in the first invention, a grain culm raking auger 9 is provided.
When the amount of vertical movement of the grain reaches a predetermined value, the grain culm raking auger
The configuration is such that the transmission can be disconnected by disengaging the clutch to 9, or the prime mover can be automatically stopped.

[0007]

[Embodiment] First, the configuration will be explained. Threshing machine 5
Forms a grain culm supply port 4 on one side and a dust exhaust port 11 on the other side,
A sorting chamber 14 is provided below a handling chamber 13 in which a handling cylinder 12 is mounted on an axis. The chassis 3 has a traveling device 2 consisting of a crawler 1, and has the above-mentioned threshing machine 5 mounted thereon with the grain supply port 4 facing forward.

[0008] The reaping pre-treatment device 6 includes, from the front, a weeding body 7,
The reaping device 8, grain culm raking auger 9, and supply conveyor 10 are arranged in this order, and above the reaping device 8 is a raking reel 1.
5 is mounted on the shaft. The grain culm scraping auger 9 includes a spiral portion 16 and a crank finger 17 and is configured to supply the reaped grain culm to the supply conveyor 10. This grain culm raking auger 9 has a rocking plate 18 that is freely movable up and down.
The swing plate 18 is tensioned downward by a spring 19.

[0009] Therefore, the grain culm raking auger 9 is
It is configured to be able to move freely up and down depending on the amount of grain culms to be scraped in, and the amount of vertical movement is detected by a detection sensor 21 via a protrusion 20 provided on the swing plate 18. When the control device 22 receives a signal from the detection sensor 21,
The configuration is such that it can be output to the transmission 23 to change the speed of the traveling device 2.

Note that 24 is a drive pulley, 25 is a belt, and 26 is a tension pulley. Next, in another embodiment shown in FIG. 2, a switch 28 is pressed by an operating rod 27 pushed up by a protrusion 20 to stop the prime mover. Next, its effect will be explained.

Work begins by moving the machine forward while driving each rotating part. Then, the grain culms in the field are cut by the cutting body 7 and cut by the cutting reel 15, and then cut by the cutting device 8. The grain culm is collected toward the crank finger 17 by the spiral portion 16 of the grain culm scraping auger 9, and is supplied to the starting end of the supply conveyor 10 by the crank finger 17.

[0012] In this way, the grain culm is transferred to the supply conveyor 1.
The grains are conveyed by the grain culm supply port 4 to the handling room 13, where they are threshed. Now, during the above-mentioned action, as the amount of grain culm to be harvested increases and the amount of grain to be conveyed increases, the grain culm scraping auger 9 is pushed upward together with the rocking plate 18 against the spring 19. A large amount of grain culms are collected and transported without fail.

When the grain culm raking auger 9 rises by more than a predetermined width, the protrusion 20 rises and presses the detection sensor 21 as shown in the imaginary line shown in FIG. -21, a detection signal is sent to the control device 22. Next, the control device 22 outputs an output to the transmission 23 to change the speed of the traveling device 2.

As described above, when the grain culms reach a predetermined amount, the control device 22 causes the traveling device 2 to move at a low speed to reduce the amount of harvest.

[0015]

As explained above, the grain culm feeding device of the present invention detects the amount of grain culm using the grain culm scraping auger, and when the amount exceeds a predetermined amount, Due to this, the traveling speed is automatically reduced to reduce the amount of grain culm to be harvested, thereby making it possible to prevent entanglement.

[Brief explanation of the drawing]

FIG. 1 is a side view of essential parts of the present invention.

FIG. 2 is a side view showing another embodiment of the invention.

FIG. 3 is a plan view showing an embodiment of the present invention.

FIG. 4 is a side view showing an embodiment of the present invention.

FIG. 5 is a simplified block circuit diagram of the present invention.

[Explanation of symbols]

1 Crawler 2 Traveling device
3 Car chassis 4 Grain culm supply port
5 Threshing machine 6 Reaping pre-treatment device 7 Grass cutting 8 Reaping device 9 Grain culm raking auger 10 Supply conveyor 21 Detection sensor 2
2 Control device

Claims (2)

[Claims] Claim 1: A threshing machine is mounted on a chassis having a traveling device, and a reaping pretreatment device is connected to a grain supply port of the threshing machine, and the reaping pretreatment device separates the grass from the front and cuts the grass. A device, a grain culm raking auger, and a supply conveyor are arranged in this order. Combine grain culm feeding device configured to detect the amount of auger movement and control the traveling speed 2. In the structure of claim 1, when the amount of movement of the grain culm raking auger reaches a predetermined value, the power transmission to the grain culm raking auger is cut off, or the prime mover is turned off. The grain culm feeding device for a combine harvester according to claim 1, which is configured to be able to stop automatically.