JPH0475531A - Thresher - Google Patents

Abstract

PURPOSE:To facilitate opening and closing of threshing cover and removal of clogging grain culm in the middle of transferring process by equipping the vertically openable and closable threshing cover with a holding lever at an opposing part to a grain chain transfer chain and a waste culm chain at an opposing part to a waste culm guide lever. CONSTITUTION:In a closed state of a threshing cover 6, a holding lever 7 at the side of the threshing cover 6 is opposed to a grain culm transfer chain 2 and a waste culm chain 8 is opposed to a waste culm guide lever 4 and is in a state of holding and transporting grain culm. Grain culm fed from a starting side of the grain culm transfer chain 2 is held between the grain culm transfer chain 2 and the holding lever 7 and an ear part is supplied to a threshing chamber 3 and threshed. The threshed waste culm is transferred from the end of the grain culm transfer chain 2 to between the waste culm chain 8 and the waste culm guide lever 4 and sent to a waste culm chamber 5. Threshed grain held between waste culms is dropped in the waste culm chamber 5. When the threshing cover 6 is opened, the grain culm transfer side is rotated upward, the holding lever 7 and the waste culm chain 8 are separated from the grain culm transfer chain 2 and the waste culm guide lever 4, etc., raised and the grain culm transfer part and waste culm transfer part are vertically opened largely.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a threshing device such as a combine harvester, in which (prior art and problem to be solved by the invention) a threshing chamber and a culm chamber are connected in front and behind. However, each of these covers opens and closes independently. However, if the covers of the threshing room and the culm removal room are both opened and the grain frame transfer chain and the culm removal chain are connected to the machine body, if the transfer of the husk becomes clogged. However, removing clogged shell culms is difficult and time-consuming because it is difficult to clean straw debris.

(Means for Solving the Problems) The present invention comprises a threshing room 3 in which a handling barrel 1 is installed and a husk culm transfer chain 2 is stretched on the husk culm transfer section side, and threshed grains discharged from the threshing room 3. A threshing cover 6 that covers the upper side of the culm and a culm transfer chamber 5 having a culm guide rod 4 for receiving and transferring the culm, and that can be opened and closed vertically with the tip side as the center of rotation, is provided with a The threshing device has a structure in which a pinning rod 7 is provided at a portion opposite to the culm guide rod 4, and a culm removal chain 8 is provided at a portion opposite to the culm removal guide rod 4.

(Operation and Effect of the Invention) When the threshing cover 6 is closed, the clamping rod 7 provided on the side of the threshing cover 6 faces the culm transfer chain 2, and the culm removal chain 8 is connected to the culm removal chain. It faces the guide rod 4 and is in a state where the culm can be held and transferred. The husk is supplied from the starting end of the grain frame transfer chain 2.

It is held between this shell culm transfer chain 2 and the clamping rod 7,
The tip of the grain is supplied to the threshing room 3 and threshed.

The threshed culm is transferred from the end of the culm transfer chain 2 to the culm chain 8 and the culm guide rod 4, and is transferred to the culm removal chamber 5.
Transported inside. In this culm removal chamber 5, the threshed grains held between the culms are shaken off.

When opening the threshing cover 6, the husk culm transfer section side is rotated upward using the side facing the ear tip as a pivot, and the pinning rod 7 and the culm removal chain 8 are connected to the husk culm transfer chain 2 and the culm guide rod. It is lifted away from the 4th grade, and the transfer section of the shell culm and the transfer section of the expulsion culm are wide open vertically.

In this way, the threshing transfer chain 2 and the culm guide rod 4 are left on the machine body side such as the threshing room 3 and the culm ejecting room 5, and the threshing rod 7 and the culm ejecting chain 8 are left on the threshing cover 6 side. Therefore, when the threshing cover 6 is opened, the connection between the husk transfer chain 2 and the culm transfer chain 8 is cut off, thereby shortening the transfer process of the grains and the culm. Therefore, even if there is a clogged culm in the middle of the transfer process, it can be easily removed.Also, although the threshing cover 6, which opens and closes, has a culm removal chain 8, there is no culm transfer chain 2. It is easy to open and close because it does not have any

(Example) When rotating, the threshing machine body 9 is provided with a threshing room 3 and a culm removal room 5 in the upper part, and a swing sorting shelf 10, a winnowing machine 11, etc., and a sorting room 12 in the lower part. 13 is a suction dust exhauster, 14 is a first receiving gutter, and 15 is a second receiving gutter.

The threshing room 3 is provided with a threshing net 16 on the lower half circumference, the handling cylinder 1 is supported by a handling cylinder shaft 17 in the front-rear direction, a shell culm supply port 3o is provided on the front side, and a discharge port 31 is provided on the rear side. A shell culm transfer chain 2 is stretched outside along the shell culm transfer section side, and is configured to appropriately transmit power.

Further, the culm shedding chamber 5 is provided with a shelf board 18 that opens above the sorting chamber 12 on the lower side, and on the upper side, the shedding culm guide rod 4 is moved diagonally from the front plant base side toward the rear ear tip side. It is set in.

The threshing cover 6 is attached to the husk culm transfer chain 2 which is the husk culm transfer section side.
It has a hinge 20 on the opposite side to the culm transfer chain 2 side, so that the culm transfer chain 2 side can freely rotate in the vertical direction. This threshing cover 6 is provided with a clamping rod 7 facing on the husk culm transfer chain 2 side so as to be swingable up and down, when the threshing cover 6 is in the closed position.

The structure is such that the stem part of the shell culm can be held and transferred between the clamping rod 7 and the shell culm transfer chain 2.

In addition, the culm guide rod 4 is provided in the 5 portion of the culm chamber of the threshing cover 6.
The exhaust culm chain 8 is stretched in the direction along the
The structure is such that the shaft 22 of the sprocket 21 on the front end side is driven and transmitted, and when the threshing cover 6 is in the closed state, the waste culm can be held between the waste culm guide rod 4 and transferred to the rear near the ear tip. There is.

The transmission structure of this culm exhaust chain 8 is such that when the threshing cover 6 is closed, the shaft 22 of the culm exhaust chain 8 is
are configured so that they fit together and rotate through transmission. The transmission case 24 is attached to the outlet wall 26 of the threshing chamber 3 that supports the handling barrel shaft 17, and has a structure in which the shaft 25 is transmitted by a bevel gear 27 (FIG. 6), a chain 28 (FIG. 7), or the like. There is. 6 and 7 show the case where the culm discharge chain 8 is stretched parallel to the shell culm transfer chain 2, and in FIG. 7, the belt 23 is replaced with the handling trunk shaft 17. A case is shown in which the chain 28 and the sprocket are interlocked by a telescopic spline shaft 29.

The drive shaft 25 of the transmission case 24 and the sprocket shaft 22 of the exhaust culm chain 8 are fitted together by forming a bifurcated notch groove on the end face of the drive shaft 25, and inserting a plate-shaped portion at the end of the sprocket shaft 22 into the notch groove. The structure is an Oldham joint that intervenes and interlocks. Therefore, by matching the rotational phases of both shafts 25 and 22, they can be fitted. Note that the shaft joint between the drive shaft 25 and the sprocket shaft 22 may be of any other type of coupling, or may be configured to interlock with each other by interposing a rubber material or the like that absorbs the misalignment of the centers.

When the threshing cover 6 is open, the sprocket shaft 22 is disengaged from the drive shaft 25, so that the handling cylinder 1 and the ejecting chain 8 can be rotated manually or the like.

Therefore, the shell culm transfer chain 2 can also be rotated separately. When the threshing cover 6 is closed, the sprocket shaft 22 is fitted and connected to the drive shaft 25, so that the rotation of the handling barrel shaft 17 transmits power to the culm chain 8. During threshing, the shell culm transferred by the shell culm transfer chain 2 is threshed in the threshing chamber 3, transferred to the culm discharge chain 8, and transferred rearward within the culm discharge chamber 5.

The threshing cover 6 is likely to be twisted during the transfer of such shell culms and shedding culms, but the threshing cover 6 is a long, single plate-like structure that extends from the threshing room 3 to the shedding room 5 and is integrated. Because of the flexible structure, there is little distortion and the transfer can be carried out smoothly.

When the threshing cover 6 is open, the terminal end of the husk transfer chain 2 and the starting end of the culm discharge chain 8 are separated, making it difficult to remove clogged straw, wrapped straw, etc. It's easy.

[Brief explanation of the drawing]

The figures show an embodiment of the invention, and Figure 1 is a front view;
2 is a plan view, FIG. 3 is a partial front sectional view, FIG. 4 is a partial plan view, FIG. 5 is a partial side sectional view, and FIG. 6. FIG. (Explanation of symbols) 1 Handling cylinder 3 Threshing room 5 Culm shedding room 7 Hull culm transfer chain Fig. 7 shows a partially different embodiment Husk culm transfer chain Culm guide rod Threshing cover Culm shedding chain

Claims (1)

[Claims] A threshing room 3 with a handling barrel 1 inside and a culm transfer chain 2 stretched on the culm transfer section side, and a culm guide rod 4 for receiving and transferring the threshed culm discharged from the threshing room 3. A threshing cover 6 covers the upper side of the culm discharge chamber 5 having The threshing device is provided with a culm chain 8 at a portion facing the culm guide rod 4.