JPS64740Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention includes a raking rotary body provided above the cutting blade, one side of the raking rotary body being formed as a raking conveyance path for grain culms,
This invention relates to a device for lubricating cutting blades in a reaping device such as a combine harvester, in which a plurality of cutting blades are installed side by side with the other side serving as a non-conveying path.

Conventionally, in the reaping device with the above-mentioned configuration, the cutting blade is located at the lowest position of the machine body, and the raking rotary body is installed directly above it, so the space for installing the oil nozzle is extremely narrow, making it difficult to find the appropriate location. It is extremely difficult to support the reaping frame, for example, by protruding a bracket from the bottom of the reaping frame and attaching the oil nozzle to it. Due to the protrusion, there were defects such as dirt and straw particles adhering to the vicinity of the nozzle discharge opening, causing clogging and improper lubrication.

In particular, the present invention provides a lubrication nozzle for lubricating the cutting blade, which faces the trough-like concave portion of the raking rotor locus on the non-conveying path side of the adjacent raking rotors, and the lubrication nozzle lubricates the cutting blade. By supporting the weed cutting support rod that passes above the adjacent raking rotary body and extends to the front of the machine, the oil nozzle is made to protrude from the wide space above the cutting blade formed below the raking rotary body. In addition to being able to properly lubricate the blade by approaching the blade, the outlet of the lubrication nozzle is covered by the weeding support rod and does not protrude to the side, thus preventing clogging due to adhesion of dirt, grass, etc. This is something that can be prevented.

Next, an embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a running section of a combine harvester, on which a threshing machine 2 is mounted, and a reaping device 3 is disposed in front. Reference numeral 4 denotes a reaping frame of the reaping device 3, on the front part of which a weed cutting body 5 and a pulling case 6 are provided, a cutting blade 7 is attached to the lower part of the frame 4, and a plurality of scrapers are installed above the reaping frame 4. Including rotating bodies 8a, 8b, 8c,
A scraping device 8 is equipped with a scraping device 8d and the like.

Reference numeral 9 denotes a transmission case, and a belt 13 is suspended between a V-pulley 10 provided on the protruding shaft of the case 9 and a V-pulley 12 provided on the input shaft of a gear case 11 that drives the reaping device 3.

Reference numeral 14 designates an upper frame that connects the driving gear case 11 and the lifting gear case 15, and an oil pump bracket 18 having an oil tank 16 and an oil pump 17 attached thereto is attached. Oil pump 1
7 is a type that is driven when it is brought into pressure contact with the V-pulley 12, and 18a is its operating lever.
A pipe 19 is connected to the oil pump 17, and its tip is branched to provide nozzles 20a and 20 at each operating section.
b, 20c, etc.

Reference numeral 21 denotes a drive sprocket which is interlocked and connected to the drive source gear case 11 by an appropriate transmission mechanism, and a chain 23 is stretched between the sprocket 21 and a sprocket 22 provided on the upper part of the scraping body 8a. The scraping rotors 8d...8a are interlocked and connected by the meshing of their respective scraping teeth, and are rotated by rotation of the drive sprocket 21.
They are configured to rotate in the directions of the arrows shown in the figure.

Between the raking rotors 8a and 8b and between 8c and 8d, raking conveyance passages A and B are formed, respectively, for raking and conveying the stock base of the grain culm cut by the cutting blade 7 to the rear. A non-conveying passage 24c is formed between the adjacent scraping rotors 8b and 8c, and the scraping rotors 8b,
There is a valley-shaped concave portion 2 in front of the rotation trajectory of the tip of 8c in plan view.
4 is formed.

Reference numeral 25 denotes a weeding rod that extends forward from the reaping frame 4 through the lower part of the valley-shaped recess 24, and has a weeding rod 5 attached to its tip. 26 is the scraping rotary body 8b and 8c
It is supported by a support post 27 that is erected from the reaping frame 4.

Reference numeral 28 denotes a grass divider rod extending forward from the bracket 26, passing above the valley-shaped recess 24, and having its tip attached to a mounting seat 25a provided on the grass divider rod 25.

Reference numeral 20a designates a nozzle for lubricating the cutting blade 7, the base of which is supported in the upper part of the trough-shaped recess 24 of the above-mentioned weeding support rod 28, and the tip of the nozzle 20a passing through the trough-shaped recess 24 using the trough-shaped part 24 to scrape when viewed from the side. The rotary members 8b and 8c are made to protrude below and close to the cutting blade 7, so that the cutting blade 7 can be reliably lubricated with oil discharged from discharge ports provided laterally in the right and left directions at the tip.

Numerals 29 and 30 are lifting and conveying devices, and the grain culms that have been raked and conveyed by these lifting and conveying actions are supplied to the threshing machine 2.

Next, the operation of the present invention will be explained. Grass plant 5
Grain culms separated left and right by the culm are subjected to the pulling action of the pulling case 6, while the root part of the grain is cut off by the cutting blade 7, and the culm is cut off by the cutting blade 7, and is subjected to the raking and conveying action of the raking rotors 8a, 8b, 8c, and 8d. The grains are then transferred to the rear through the raking and conveying paths A and B, lifted and conveyed by lifting and conveying devices 29 and 30, and supplied to the threshing machine 2.

When lubricating the cutting blade 7, operate the operating lever 18a in the front-back direction to operate the lubricating pump 17.
The oil in the oil tank 16 passes through a pipe 19 to oil nozzles 20a, 20b, 2 which are connected and branched to the pipe 19.
0c, etc., and from there, each operating part is lubricated.

The oil supplied to the nozzle 20a for lubricating the cutting blade 7 is discharged laterally and horizontally from the discharge port.
The cutting blade 7 provided below is lubricated. At this time, since the discharge port of the nozzle 20a is located close to the cutting blade 7, lubrication is extremely reliable, and since the fixed portion is a non-conveying passage, lubrication is not obstructed by grain culms, and the nozzle Since the front and lower portions of the discharge port 20a are covered by the grass-splitting rods 28, 25, etc., the discharge port will not be clogged with dirt or grass.

In addition, if the triangular grain culm derivative 31 shown by the chain line in FIG. Lubrication becomes even more possible.

In this way, the present invention provides a raking rotary body above the cutting blade, one side of the raking rotary body is formed as a raking conveyance passage for grain culms, and the other side is formed as a non-conveyance passage. In a reaping device such as a combine harvester that is installed side by side, a lubricating nozzle for lubricating the cutting blade is placed facing the valley-shaped concave portion of the locus of the rake rotor on the non-conveyance path side of the rake rotor of the adjacent rake rotor. The lubrication nozzle is fixed to a weeding support rod that passes above the adjacent raking rotors and extends toward the front of the machine, and is located in a trough-like recess of the raking rotor locus on the non-conveying path side. Taking advantage of the formation of oil, a lubricating nozzle was provided at this location, and the nozzle was made to protrude below the raking rotor, and the discharge port was provided facing the cutting blade, so that the non-conveyance path of the raking rotor was provided. Appropriate oil can be applied to the cutting blade in the wide space below the side, and the oil nozzle outlet is covered with the weeding support rod, which prevents oil from flowing outward. It has the characteristics of not causing clogging due to adhesion of soil, grass, etc.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a side view of a combine harvester with one part omitted, Fig. 2 is a plan view of the main part, and Fig. 3 is a
- It is an X-ray sectional view. 3... Reaping device, 7... Cutting blade, 8... Scraping device, 8a, 8b, 8c, 8d... Scraping rotary body, 2
4...Trough-shaped recess, 24a...Non-scraping conveyance path,
A, B...raking conveyance passage.

Claims (1)

[Scope of utility model registration request] A combine harvester, etc., in which a raking rotary body is provided above the cutting blade, one side of the raking rotary body is formed as a raking conveyance passage for grain culms, and the other side is formed as a non-conveyance passage. In the reaping device, a lubrication nozzle for lubricating the cutting blade is provided to face a valley-shaped concave portion of the raking rotor locus on the non-conveying path side of each of the adjacent raking rotors, and the lubrication nozzle is arranged to lubricate the cutting blade. A lubrication device for a grain culm reaper, characterized in that the lubrication device is attached to a weeding support rod that extends to the front of the machine body through the upper part of the raking rotary body.