JPS6016289Y2 - Grain culm conveyance and supply device to the threshing section of a combine harvester - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for conveying and supplying husk to a threshing section in a combine harvester.

In a general combine harvester, the culm part of the harvested culm is lifted and conveyed by the culm clamping conveyor chain 7 toward the foot chain of the threshing device, and during the conveyance, the culm is turned sideways, and the culm tip side is lifted up and conveyed. The culm is configured to be fed toward the supply port of the threshing device, but in order to change the culm to a sideways posture during lifting and conveyance, most of the conventional ones are As seen in the publication, the starting end of the row is moved upwardly from the culm clamping conveyance check 7.
It is constructed by hanging an endless conveying belt located near the starting end of the conveyance and with the end of the subtraction conveying looking into the supply port of the threshing device.

However, as mentioned above, there are two
A type in which endless conveyor belts are arranged side by side in a step-like manner has a complicated structure and cannot be made lightweight in order to make the combine smaller.
For example, as in Japanese Patent Application Laid-Open No. 51-100433, only the base of the culm is sent to the foot chain by a conveying device, and the culm is tilted in an abbreviated structure. All of these methods are insufficient in terms of feeding the tips of the grains in an orderly and undisturbed manner toward the supply port of the threshing device.

The present invention has a simplified structure that does not require an endless transport belt, and allows the shell culm to be fed to the supply port of the threshing device without tangles in the sugar part and is disturbed, making it suitable for small combine harvesters. A culm conveying and feeding device is provided.

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

FIG. 1 shows a side view of the front part of the combine harvester, and a foot chain 6 having a starting end 6a protruding forward from the supply port 2 is attached to the side of the threshing device 1 mounted above the track type traveling body 5.
The threshing device 1 is constructed in the same manner as the conventional structure by attaching the threshing device 1 and attaching the threshing culm below the threshing culm.

E shows the entire reaping and conveying device, and a transversely long transmission case 7 at the rear end of the device E is rotatably mounted on metals 8, 8 at the front lower part of the threshing device 1, and the transmission case 7 is rotated. The entire apparatus E is configured to be able to rotate as a center of movement, and can be adjusted up and down using a lift operation device (not shown).

A reaping table 10 is supported by two pipes 9 and 9' extending from the transmission case 7 to the front lower part, and a frame 11. The cutting blades 1 on the cutting blade stand 13 spanning the frame 11.11 in front of the cutting stand 10 are mounted on the central grass dividing plate 12' at the tip of the central frame 11'.
4 is configured to transmit power from a gear case 15 on the reaping stand 10 which transmits power through the pipe 9.

In addition, a horizontal lifting drive case C is installed across the upper back surfaces of both lifting cases 3 and 3', each having tines 16 and 16' and inclined in parallel.
A transmission pipe 17 extending diagonally upward from the right end of the transmission case 3 is connected to a portion of the lifting drive case C at the rear of the right side lifting case 3 to transmit power, and is installed on the right side of the transmission case 7. Mission case 1 is attached to input pulley 18.
A belt 20 is wound around the belt 9 to transmit power.

A is a vertical conveyance chain 7, and the chain A as a whole is inclined toward the foot chain 6 from the part between the two lifting cases 3 and 3' when viewed from the front, as shown in FIG. As shown in the figure, the double lifting case 3.3' is tilted from the rear lower part to the rear height, and the lower floating sprocket 21 is connected to the pair of charging star wheels 22, 2 above the reaping table 10.
A driving sprocket 25 is disposed between both floating sprockets 24 and 24', which are pivoted on the upper support frame 23, so as to approach the rear between 2', and the vertical conveyance chain 7A
The upper end of the transmission cylinder 27 extending from the transmission gear case 25, which is rotatably connected to the front left end of the transmission case 7, is connected to the support frame 23 so that it can be rotationally driven by the drive sprocket 25. one end of the operating rod 29, which is slidably inserted into the abutment 28 fixed to the transmission case 7, is attached to the pin 30.
One end of both arms 32 and 32', which are integrally connected and rotatably supported on a support shaft 31 fixed at the waist, is connected to the support frame 23 through a
The lever 33 connected to the other end is inserted through the fixed guide plate 34, and by vertically operating the lever 33, the vertical conveyance check 7A is moved.
The inclination can be adjusted and the floating sprocket 24
It is configured so that the side conveyance terminal end 35 can be horizontally approached or separated from the starting end 6a of the foot chain 6.

Further, at the nipping start point A near the floating sprocket 21, a curved portion at one end of the nipping rod 4, which is opposed to the conveying surface of the vertical conveying check 7A, is visible, and at the conveying end portion 36, the bent part of the nipping rod 4 is provided. The other end bending portion is extended.

The transmission shaft 36 is inserted into the entire horizontal length of the lifting drive case C, and the transmission pipe 17 is inserted into the right end of the case C.
The transmission shaft 37 in the case C is extended so that three bevel gears 38, 38' and 38'' drive the transmission shaft 37 and the sprocket drive shaft 39 of the case C. In the left end of the transmission shaft 37, a sprocket drive shaft 41 of the lifting case 3' is driven via two bevel gears 40 and 40'.

Further, a cylindrical metal 42 whose upper end is fixed is extended diagonally downward from the right side portion of the lifting drive case C, and the upper part of the lower cylindrical metal 42' is slidably fitted inside the lower part of the cylindrical metal 42. Tube metal 42
A bolt 44 is extended to the side of the barrel 42 from the support piece 43 fixed to the waist barrel 42. The bolt 44 is inserted into the support piece 45 fixed to the waist barrel 42, and a double nut 46 is screwed into the bolt 44. A cylindrical metal 42' is provided in a telescopic manner, and the upper part of a transmission shaft 47 inserted into the cylindrical metal 42 and the transmission shaft 36 are interlocked and connected by bevel gears 48 and 48'.
and a transmission shaft 47' inside the barrel 42' are connected by spline fitting so that they can expand and contract with each other, and a plate sprocket type tip conveyor is attached to the tip of the transmission shaft 47' extending from the lower end of the barrel 42'. The center boss part of the rotary body B is fitted and fixed by the pin 49, but the rotary body B is suspended from above and the tip side of the culm 50 conveyed by the vertical conveyance check 7A is rotated to open the supply port. It is installed in an upper position where it can be guided so that it is in the feeding position while tilting to the 2nd side.

FIG. 7 shows another embodiment, in which the tf is constructed in the same manner as described above.
l axis 47. 47' are connected by a universal joint 51, and the rotating body B is adjusted by adjusting the adjustment bolt 44'.
The structure is such that the inclination can be adjusted.

Therefore, during combine harvesting work, each grass cutting board 12.
Case 3 where the planted culms separated by 12' are raised on both sides.
, 3' are pulled up by the tines 16, 16', the cutting blade 14 is used to cut the culm, and the culm base side of the shell culm is scraped by the double-loaded star foils 22, 22', and then transferred from the clamping starting point A to the vertical conveyance chute. While the culm side of the culm 50 is raised by being pinched by the culm 7A and the pinching rod 4 and deflected in the direction of inclination by the vertical conveyance check 7A, the tip side is pushed down by the rotating rotary body B and fed. Force the guide to face the direction of mouth 2, and while the culm remains horizontal, the culm 5
The culm side of the grain 0 is transferred from the conveyance terminal end 35 to the starting end 6a of the foot chain 6 as shown in FIG. 5, and the head side is supplied from the supply port 2 to the threshing device 1 for threshing.

In addition, depending on crop conditions such as long and short culms or lodging,
By adjusting the extension and contraction of the bolt 44, the rotating body B can be moved up and down, and as in another embodiment shown in FIG. 7, the inclination can be changed and adapted by adjusting the bolt 44'.

Depending on the length of the culm, the third one can be adjusted by operating the lever 33.
As shown by solid lines and imaginary lines in the figure, by adjusting the inclinations of the vertical conveyance check 7A and the foot chain 4, the conveyance terminal end 35 and the foot chain start end 6a can be moved closer or further apart to make the culm shallow or In addition to being able to adapt to the state of deep insertion by performing inheriting and supplying, it is also possible to adapt the tip feeding action by moving the rotating body E up and down or changing the inclination as described above.

In this way, the present invention allows the culm, which has been raised and trimmed by the tine 16. A vertical conveyor chain 7 is installed obliquely from below against the foot chain 6 of the threshing device 1.
In a combine harvester having a configuration in which the culm is held by A and fed to the ascending waist threshing device 1, the tip side of the shell culm, which is being conveyed while holding the culm by the vertical conveyance check 7A, is fed to the supply port 2 of the threshing device 1. Since the tip conveying rotary body B, which can be tilted toward the side, is installed vertically from the lifting drive case C side on the upper rear side of the lifting case 3 so that it can be rotated, the tip can be lifted and adjusted by the lifting case. The exposed tip of the culm is received by the rotary body B, and while the vertical conveyance check 7A lifts and conveys the stock head, the rotary body B operates to loosen the entanglement of the tip of the culm and move it to the supply port of the threshing device. The structure is significantly simpler than the conventional system in which an endless belt for conveying the ear tip is installed in parallel on the upper part of the vertical conveyance chain, and the culm is fed to the threshing section in an appropriate posture. The device can be simplified and made suitable for small combine harvesters.

Furthermore, since the rotating body B is vertically disposed from the upper rear surface of the lifting case 3 and is driven in common with the lifting case 3, the drive system is also simplified and compact, which further helps to reduce the size and weight of the device. Since the rotating body B is transmitted in a space behind the lifting case that is not related to the movement path of the shell culm, there is an advantage that good conveyance can be performed without imposing restrictions on the movement of the shell culm.

[Brief explanation of drawings]

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 plan view thereof, Fig. 3 is a front view of a part thereof, Fig. 4 is a sectional view of the main part, Figure 5 is an explanatory diagram of the front view;
FIG. 6 is an enlarged view of a part of FIG. 4, and FIG. 7 is a sectional view of the main part of another embodiment. 1... Threshing device, A... Vertical conveyance check 7
．． 2... Supply port, 3, 3'... Lifting case, 4... Cutting blade, 6... Feet chain, B...・Spike tip conveying rotor, C...
- Lifting drive case, 16.16'...tine.

Claims (1)

[Scope of utility model registration request] The culm, which has been raised and trimmed using the tine 16 and 16' shaped lifting cases 3 and 3' and cut at the base with the cutting blade 4, is passed from the lower rear of the lifting cases 3 and 3' to the threshing device 1. In a combine harvester configured such that the culm is clamped and conveyed upward by a vertical conveying cheno A installed diagonally toward the foot chain 6, and then supplied to the threshing device 1, the culm is gripped and conveyed by the vertical conveying cheno A. A tip conveying rotary body B capable of tilting the tip side of the culm toward the supply port 2 side of the threshing device 1 can be vertically mounted from the lifting drive case C side on the upper rear side of the lifting case 3 and can be rotationally driven. A device for conveying and supplying husk to a threshing section, characterized in that it is provided as follows.