JPH0132539Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a tied grain culm discharge device in a grain culm binding machine mounted on a grain culm harvesting machine such as a combine harvester.

Generally, some grain culm binding machines are equipped with a discharge conveyor that receives the bundled grain culms thrown by the sweeper, transports them to the mowed field side on the side of the machine, and discharges them. If the bundled grain culm is transferred to the conveyor in that state, the transfer to the conveyor will be poor and it will not be able to receive the conveying action of the conveyor. Therefore, conventionally, a tip-side resistor is provided to receive the tip side of the tied grain culm thrown backward, and the tip-side resistor rotates the tied grain culm around the tip side in the conveyance direction of the conveyor. Grain culms are transferred to the conveyor in a front-back posture that is approximately perpendicular to the grain culm. However, since the conditions for binding grain culms vary depending on the type of grain culm and the situation, It had the disadvantage that it rotated too much, resulting in a large number of transmission errors. Therefore, in order to prevent the tied grain culm from turning too much, it has been proposed to provide a resistance body on the stock side to receive the stock side of the tied grain culm that rotates around the ear side. This is effective when the culm length is constant and the grain is tied at a fixed position, but when the culm is large or when the tip side is tied using a variable culm tying machine, the stock base of the tied culm becomes a stock. When the grain culm protrudes greatly from the base side resistor and is transferred to the discharge conveyance body, large conveyance resistance may occur between the protruding stock base side and the stock base side resistor, or the stock base side may rotate too much and be discharged. A new problem arises in that the conveyance to the grain body cannot be carried out smoothly, and phenomena such as disturbance or clogging of the bundled grain culms occur, making it impossible to carry out a good conveying action.

The present invention was devised in order to eliminate these shortcomings in view of the above-mentioned actual situation, and the present invention has been devised in order to eliminate these drawbacks. With this structure, the stock side of the thrown bundled grain culm can always be received at the ideal position regardless of the culm height change of the bundled grain culm or the bundling position, which prevents disturbance or clogging of the discharge conveyor. It is an object of the present invention to provide a bundled grain culm discharging device in a grain culm binding machine that can transfer the grains without any trouble and perform a smooth conveying and discharging operation.

The structure of the present invention will be explained based on an embodiment shown in the drawings. 1 is a grain culm binding machine mounted on the rear part of a traveling machine of a combine harvester so as to be adjustable and movable in the left and right direction; The machine 1 is configured to form bundled grain culms A by bundling the waste straw after threshing carried out by the waste straw conveyor 2 into predetermined amounts. 3 is a sweeper, 4 is a needle, 5 is a puller, 6 is a sensing door, 7 is a nodule part, 8 is a cylindrical frame containing the nodule shaft 7a, 9 is a transmission case that transmits power to the nodule shaft 7a, 10 is a needle 4, etc. 11 is a cover body that covers the clutch case 10, and these components are constructed in the conventional manner.

Reference numeral 12 denotes a discharge conveyance body installed at the rear of the grain culm binding machine 1, and the discharge conveyance body 12 has a conveyance start end located on the knotting part 7 side of the grain culm binding machine 1, and a conveyance terminal end located on the machine body side. It is arranged diagonally rearward in the left-right direction so as to be located on the mown field side. A tip-side resistor 13 is provided at a position corresponding to the ear-growing portion of the tied grain culm A in the middle part of the cylindrical frame 8, and receives the tip side of the tied grain culm A thrown backward by the sweeper 3. The stock side of the tied grain culm A is designed to rotate rearward around the received ear tip side. On the other hand, on the conveyance start end side of the discharge conveyance body 12, a stock base side resistor 14, which is approximately U-shaped in side view, is installed to receive the stock base side of the bundled grain culm A that has been thrown backward and rotated. Both upper and lower legs 1 of the stock side resistor 14 are provided so as to straddle the body 12.
4a and 14b are respectively attached to the cylindrical frame 8 and the clutch case 10 so as to be freely adjustable in the front and rear directions and rotatable in the left and right directions.
That is, an upper bracket 17 is pivotally attached to a fixed plate 15 fixed to the cylindrical frame 8 and is rotatable in the left and right direction about a tightening bolt 16 on the front end side. 17a
By inserting and removing the upper leg portion 14a in a freely adjustable manner and tightening with the tightening bolt 16, the upper leg portion 1
4a is fastened to the upper bracket 17. on the other hand,
Lower fixing plate 18 fixed to clutch case 10
includes a lower bracket 2 which is rotatable in the left and right directions about a rotation shaft 19 coaxial with the tightening bolt 16.
0 is pivotally mounted, and the lower leg portion 14b, which is fitted into the lower bracket 20 so that it can be inserted and removed freely, is fixed with a tightening bolt 20a. Also,
The upper fixing plate 15 has an arc-shaped elongated hole 15a centered around the tightening bolt 16, and can be rotated about the tightening bolt 16 by a fixing bolt 21 passing through the elongated hole 15a. upper bracket 1
7 is fixed.

Next, the operation of the present invention constructed as described above will be explained. The grain culms transported rearward by the straw removal conveyor 2 are tied into bundled grain culms A by a predetermined amount by the grain culm binding machine 1, and are thrown backward by the sweeper 3.
At this time, the tip of the tied grain culm A is connected to the tip side resistor 13.
The stock side rotates backwards around the tip side, and after being received by the stock stock resistor 14, it is transferred to the discharge conveying body 12 side and conveyed to the mowed field side on the side of the machine. It will be discharged.

In such a series of discharge operations of the tied grain culm A, if the culm of the tied grain culm A is long or the binding position is closer to the ear tip side, the thrown tied grain culm A is As shown in the figure, if the stock end side resistor 14 remains in a fixed position (for example, the position shown by the solid line in FIG. 4), the stock end side will be in a state that largely protrudes from the stock end side resistor 14, and will be transferred to the discharge conveyor 12. A large resistance is generated between the bundled grain culm A and the stock-side resistor 14, and a smooth conveying action cannot be performed. However, in the present invention, the position of the plant side resistor 14 is changed in the horizontal direction, that is, in the present embodiment, in the front-back Y-Y' direction and the left-right X-X' direction, so that the rotated bundled grain culm A is At the same time as it assumes an appropriate transfer posture with respect to the discharge conveyance body 12, the stock side resistor 14 and the bundled grain culm A
When the bundled grain culm A is transferred to the discharge conveyor 12, if the grain culm A is immediately displaced to the imaginary line position where it slips through and does not interfere with conveyance without creating a large resistance between the bundled grain culm A and the stump head. , regardless of changes in culm height, changes in binding position, etc., it will be received at an ideal position and transferred to the discharge conveyance body 12 side. To displace the stock side resistor 14, loosen each tightening bolt 16, 20a and the fixing bolt 21, and move the stock side resistor 14 in the left and right direction with the tightening bolt 16 and rotation shaft 19 as fulcrums. This can be easily done by adjusting the displacement in the X-X' direction (X-X' direction) or the front-back direction (Y-Y' direction). Therefore, the bundled grain culm A performs an ideal transfer action to the discharge conveyance body 12 side corresponding to the length of the culm, changes in the bundling position, and accompanying changes in the throwing condition. Therefore, there is no disturbance or clogging of the bundled grain culms A, and smooth and reliable discharge and conveyance to the mowed field side on the side of the machine body can be performed.

In addition, the stock side resistor 14 is located on the node side and both legs 14a and 14b are connected to the upper cylindrical frame 8 and the lower clutch case 10, respectively, so that the cylindrical frame 8 and the clutch are connected to each other. The case 10 is an extension of the transmission case 9 on the tip side toward the stock end side,
4, it also has the effect of reinforcing a structure that tends to lack strength on the node side.

In the above embodiment, the stock side resistor 14 is movable in the front, rear, left and right directions, but the present invention is not limited to this. It is sufficient if the position can be changed horizontally so as to face the stock base of the stock.

In summary, the present invention is equipped with a discharge conveying body that conveys the bundled grain culm, whose head side is rotated using the tip side as a fulcrum by the sweeping operation of the sweeper, and discharges it to the side of the harvested land on the side of the machine. In the grain culm bundling machine, a stock end side resistor is installed on the transport start end side of the discharge conveyance body to receive the stock end side of the rotated bound grain culm and transfer it to the discharge conveyance body side. Because it is installed so that its position can be changed in the horizontal direction in accordance with the position of the plant base, the bundled grain culm is transferred to the discharge conveyor while being reliably prevented from turning too much by the resistance element on the plant base side. However, the resistance element on the stem end side can be freely adjusted in displacement according to changes in the stem end position of the tied grain culm due to changes in the culm length of the tied grain culm, changes in the bundling position, etc. The stock side of the grain culm can always be received at an ideal position, and can be transferred to the discharge conveyance body side without causing disturbance or clogging, and smooth and reliable conveyance and unloading operation can be performed.

[Brief explanation of the drawing]

The drawing shows an embodiment of the bundled grain culm discharge device in the grain culm binding machine according to the present invention,
FIG. 1 is an overall plan view of the grain culm tying machine, FIG. 2 is a side view of the same, FIG. 3 is an enlarged side view of the main part, and FIG. 4 is an explanatory view of the operation. In the figure, 1 is a grain culm binding machine, 3 is a sweeper, 12 is a discharge conveyor, and 14 is a stock side resistor.

Claims (1)

[Scope of utility model registration request] In the grain culm binding machine described above, the grain culm binding machine is equipped with a discharge conveying body that transports the bundled grain culm whose stock side is rotated using the tip side as a fulcrum by the throwing operation of the sweeper, and discharges it to the mowed field side on the side of the machine. On the conveyance start end side of the discharge conveyance body, there is provided a stock side resistance element that receives the base side of the rotated bundled grain culm and transfers it to the discharge conveyance body side.
A bundled grain culm discharge device in a grain culm binding machine, characterized in that it is provided so that its position can be changed in the horizontal direction in accordance with the stock position of the bundled grain culm.