JPH0137389Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a front structure of a lifting case in a combine harvester.

In other words, it is equipped with an opening with an opening/closing lid on the front of the lifting case, and can be used for cleaning to remove straw and dust that accumulates near the sprocket without having to remove the entire case cover of the lifting case as in the conventional case. The present invention has a simple structure and can be conveniently implemented, making it easy to perform inspections and inspections, or to take out power from a weed pulling device attached to the side of the lifting case.

Next, the embodiment shown in the drawings will be described.

FIG. 1 shows a side view of the front part of the combine harvester, in which a reaping part C is installed in front of a threshing part B supported by crawlers 7. Each lifting case A is installed diagonally behind the
A conveyor (not shown) is installed rearward from above the cutting blade 9 installed horizontally at the rear lower part of each hoisting case A, and at the rear, a vertical conveyor body (not shown) is installed to inherit and feed the grain culm to the feed chain 10 of the threshing section B. The conveyor chain 11 is disposed diagonally, and the structure is similar to the conventional structure.

Each lifting case A is formed by joining the front case cover 4 to the rear case cover 4a, and a sprocket 3 fitted to a drive shaft 13 extending from the rear transmission case 12 is installed inside the upper part. At the same time, a sprocket or roller is installed at the bottom of the case, and a chain 2 with tines 1 is placed around each of them, and the tines 1 are installed so that they protrude from one side of the case A and move. Configure in the same way as the structure.

An opening 5 is formed in the part of the case cover 4 in front of the sprocket 3 in the lifting case A on the left side of the machine body, and the upper part of the opening/closing lid 6 which is wider than the opening 5 and coincides with the outside of the opening 5 is formed. A hook part 16 formed at the bottom of the opening/closing lid 6 can be freely attached to and detached from an engaging part 15 made of a spring plate, which is pivotally connected to the upper outer surface of the opening 5 via a hinge 14 and installed to the lower outer surface of the opening 5. The opening/closing lid 6 facing the opening 5 has a projecting portion 6a that can be accessed toward the center outer end of the sprocket 3. are integrally formed, and two nuts 17, which are attachment attachment parts above the opening 5 and one below, are fixedly installed at positions covered by the opening/closing lid 6. It is also possible to provide an opening 5 and an opening/closing lid 6 in front of the sprocket 3 or in front of the lower sprocket or roller in the same manner as described above.

D is the weed pulling device, and the left pulling case A
The grass divider plate 8 is removed and removably installed on the outside front side of the machine, as in the conventional type, but the tines 20, which protrude toward the front of the fuselage from the front of the case 19 with the grass divider 18 connected to the lower part, move upward. In this way, it has the same structure as the conventional structure, and one end side of an L-shaped transmission case 23 containing transmission shafts 21a, 21b and bevel gears 22a, 22b is connected to the inner side of the upper part of the case 19, and the inner transmission shaft 21b so that transmission can be transmitted to the chain drive sprocket 24 in the upper part of the case 19, and the other end of the transmission case 23 is fitted to the tip of the transmission shaft 21a to connect the tip of the drive shaft 13 in the lifting case A. A connecting body 26 that can be removably fitted to the locking pin 25 is provided protrudingly, and the transmission case 23
A flange 27 that can be joined to the outer periphery of the opening 5 is formed at the other end, and each bolt 28 that is inserted into the flange 27 is installed so that it can be screwed into each of the nuts 17 and tightened. Configure.

Therefore, as shown in FIGS. 1 to 3, the opening/closing lid 6 is normally closed by engaging the hook part 16 with the engaging part 15, but when the hook part 16 is disengaged and the fourth
When the opening/closing lid 6 is opened as shown in the figure, the sprocket 3 can be cleaned and inspected to remove straw and dirt accumulated on the sprocket 3.

Note that when the opening/closing lid 16 is closed, if straw or other debris accumulates on the sprocket 3, the straw or other debris may push the protrusion 6a and push the opening/closing lid 6 open. It will also happen.

In addition, when performing combine harvesting work in a field where the planted grain culms are lying down laterally, the grass can be raised in front of the left raising case A as shown in Figures 5 to 8. To install the device D, open the opening/closing cover 6 and insert the transmission case 23 outside the opening 5.
When the flanges 27 of the blades are aligned, the connecting body 26 is fitted to the locking pin 25, and each bolt 28 is inserted and connected, the grass pulling device D is installed so that the transmission can be transmitted from the lifting case A side. You will be able to do that.

The present invention has the following effects. In other words, by opening the opening/closing lid, you can easily perform cleaning and inspection by removing straw and dirt that accumulates near the sprocket from the opening without removing the case cover of the lifting case as in the conventional case. Power can be taken out from the sprocket side through the opening for attachments such as the grass pulling device attached to the side of the lifting case, and the opening/closing lid has a simple structure with a pivoting structure to make it easy to open and prevent it from being lost. It can be suitably implemented.

Further, since the mounting portion of an attachment such as a weed pulling device is usually covered and protected by an opening/closing lid, the mounting work can be performed conveniently.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a side view of the front part of the combine, FIG. 2 is a front view of a part of the lifting case, FIG. 3 is a side sectional view thereof, and FIG.
Figure 5 is a side view of the weed pulling device installed, Figure 6 is a plan view of its upper part,
FIG. 7 shows a front view thereof, and FIG. 8 shows a side sectional view of the state. 1... Tine, 2... Chain, 3... Sprocket, A... Lifting case, 4... Case cover, 5... Opening, 6... Opening/closing lid.

Claims (1)

[Scope of utility model registration request] An opening is formed in the front part of the case cover of the lifting case in front of the sprocket around which a chain with tines is wound.A lid larger than the opening is provided in the opening so that it can be opened and closed freely. A front structure of a lifting case for a combine harvester, characterized in that an attachment mounting portion is provided in a portion covered by an opening/closing lid.