JP7655210B2 - Threshing equipment - Google Patents

Description

The present invention relates to a threshing device.

Conventionally, a threshing drum with multiple threshing teeth is mounted in the threshing chamber of a threshing device so that it can be driven and rotated (see Patent Document 1).

JP 2007-195457 A

A threshing drum with multiple teeth rotates in the threshing chamber to perform the threshing process, but there were cases where the material rotated along with the teeth of the threshing drum, preventing proper threshing.

The present invention was made in consideration of the above, and aims to provide a threshing device that can perform good threshing processing.

The first invention relates to a threshing device in which a threshing drum (53) having a plurality of threshing teeth (52) in a threshing chamber (51) is mounted on a threshing drum shaft (57) so as to be rotatable. In the threshing device, resistors (60a, 60b) are provided in the threshing chamber (51) near the rotation path (R) of the threshing teeth (52) to provide a moving resistance to the material to be processed.
a slope (60a', 60b') is provided at a front end of the resistor (60a, 60b) in the direction of movement of the object to be treated;
The resistors (60a, 60b) are disposed between the receiving net (50b) and the upper threshing drum cover (50c) in the rotation direction of the threshing drum (53), and are disposed at a portion where the threshing drum (53) moves from bottom to top and at a portion where the threshing drum (53) moves from top to bottom, respectively.
This threshing device is characterized in that the inclined portions (60a', 60b') are located forward of the threshing teeth (52).
The second invention is a threshing device according to the first invention, characterized in that the resistors (60a, 60b) are elastic bodies made of rubber plates.
The third invention is a threshing device according to the first or second invention, characterized in that the tips of the resistors (60a, 60b) are plates located near the rotation trajectory (R) of the threshing teeth (52) along the threshing drum (53).
The fourth present invention is a threshing device according to any of the first to third present inventions, characterized in that the resistors (60a, 60b) are arranged so as to be freely adjustable toward or away from the rotational trajectory (R) of the threshing teeth (52).
According to the present invention, resistors 60a, 60b which apply a resistance to movement of the material to be processed are provided near the rotation trajectory R of the handling teeth 52 in the handling chamber 51. Therefore, the resistors 60a, 60b apply a resistance to movement of the material to be processed, breaking up lumps of the material to be processed and allowing the threshing process to be carried out quickly and satisfactorily.
The first invention related to the present invention is a threshing device in which a threshing drum 53 having a plurality of threshing teeth 52 provided in a threshing chamber 51 is mounted on a threshing drum shaft 57 so that it can be freely driven and rotated, and in which resistors 60a, 60b that apply movement resistance to the material to be processed are provided near the rotation trajectory R of the threshing teeth 52 in the threshing chamber 51.

According to the first invention related to the present invention , resistors 60a, 60b which apply a movement resistance to the material to be processed are provided near the rotation trajectory R of the handling teeth 52 in the handling chamber 51. Therefore, the resistors 60a, 60b apply a movement resistance to the material to be processed, breaking up lumps of the material to be processed and allowing the threshing process to be carried out quickly, thereby enabling the threshing process to be carried out well.

A second invention related to the present invention is a threshing device of the first invention related to the present invention , in which the resistors 60a, 60b are elastic bodies made of rubber plates.

According to the second invention related to the present invention , in addition to the effects of the first invention related to the present invention , since the resistors 60a, 60b are elastic bodies such as rubber plates, when a large amount of material to be processed is put into the handling chamber 51 and the threshing processing volume is large, the resistors 60a, 60b are pushed by the material to be processed and deformed, increasing the gap between them and the rotation trajectory R of the handling teeth 52, and when the amount of material to be processed is small, the resistors close, thereby providing an appropriate movement resistance to the material to be processed regardless of the threshing processing volume, and threshing processing can be performed smoothly.

A third invention related to the present invention is a threshing device of the first or second invention related to the present invention, in which the tips of the resistors 60a, 60b are plate bodies located near the rotation locus R of the threshing teeth 52 along the threshing drum 53 .

A fourth invention related to the present invention is a threshing device of any of the first to third inventions related to the present invention, in which resistors 60a, 60b are provided at the location where the threshing drum 53 moves from bottom to top.

A fifth invention related to the present invention is a threshing device of any of the first to fourth inventions related to the present invention , in which resistors 60a, 60b are arranged so as to be freely adjustable toward or away from the rotational trajectory R of the threshing teeth 52.

A sixth invention related to the present invention is a threshing device of any of the first to fifth inventions related to the present invention, in which inclined portions 60a', 60b' are provided at the front ends of the resistors 60a, 60b in the direction of movement of the material being processed.

1 is a side view of a combine harvester showing an embodiment of the present invention. 1 is a side cross-sectional view of a threshing device showing an embodiment of the present invention. FIG. 2 is a cross-sectional plan view of a threshing device showing an embodiment of the present invention. FIG. 2 is a front cross-sectional view of a threshing device showing an embodiment of the present invention. FIG. 2 is a front cross-sectional view of a threshing apparatus showing another embodiment of the present invention. A cross-sectional plan view of a threshing apparatus showing another embodiment of the present invention. FIG. 2 is a front cross-sectional view of a threshing apparatus showing another embodiment of the present invention. A cross-sectional plan view of a threshing apparatus showing another embodiment of the present invention. FIG. 11 is a plan view of a main portion showing another embodiment of the present invention.

An example of the application of this invention to a general-purpose combine harvester that inputs whole culms is explained with reference to the drawings.

First, the combine harvester according to the first embodiment will be described in detail with reference to Figures 1 to 4.

<Overall configuration of the combine>
A general-purpose combine harvester is used to harvest rice, wheat, etc., and comprises a machine frame 1, a pair of left and right crawler-type traveling devices 2 that support the machine body, an elevator 3 supported on the front of the machine frame 1 so as to be able to swing up and down, a reaping section 4 connected to the front end of the elevator 3, a threshing device 5 disposed on the left side of the machine frame 1, a grain tank disposed on the right side of the threshing device 5, and a driving section 6 disposed on the right side of the elevator 3 and the threshing device 5 and in front of the grain tank. The traveling devices 2, elevator 3, reaping section 4, threshing device 5, grain transport device of the grain tank, etc. are driven by a prime mover (engine) mounted on the machine frame 1.

The driver's seat 6a, the start switch for the engine 6b, an HST lever 6c that switches the drive to the traveling device 2 between forward and backward movement and operates a hydrostatic continuously variable transmission that changes the speed continuously, a steering lever 6d that switches the left and right drive of the left and right traveling devices 2 on and off to steer the machine and manually move the reaping unit 4 up and down, a reaping/threshing clutch lever 6e, a control device 6f that controls each component, a monitor 6g, an alarm buzzer 6h, etc.

<Reaping unit 4>
The harvesting section 4 comprises a pair of left and right grass dividing rods 7, a platform 8, a rotating reel 9 for raking in the harvested material, a clipper-type cutting device 10 disposed across the left and right grass dividing rods 7 at the front end of the platform 8, and an auger 11 disposed on the platform 8 and rotating around an axis oriented in the left-right direction.

A hydraulic cylinder is provided between the machine frame 1 and the elevator 3, and the elevator 3 is arranged so that it can be swung up and down around a left-right axis relative to the threshing device 5. When the elevator 3 is swung up and down, the reaping unit 4 goes into a working state where the platform 8 is lowered close to the ground, and a non-working state where the platform 8 is raised high above the ground.

The rotating reel 9 is rotatably supported by a reel arm 12 that is supported to be able to swing up and down around a swing axis P relative to the harvesting unit 4, and is supported so as to always face downward on a rotating body 13 supported by the reel arm 12. It has multiple tines 14 that rake in the planted stalks.

When the combine is driven forward in the working state with the reaping section 4 lowered, the planted culms are separated by the reaping rod 7 into culls to be harvested and non-culls, and the planted culms to be harvested are scraped onto the platform 8 by the rotating reel 9, and then cut by the clipper-type cutting device 10. The harvested culms scraped onto the platform 8 are sent sideways by the auger 11 to the front of the elevator 3, and are then scraped further into the elevator 3. The harvested culms are transported backward by the elevator 3, and the entire harvested culms from the base to the tip are fed into the threshing device 5.

<Ogre>
The auger 11 has left and right spirals on the right and left sides in front of the elevator 3, and transports the harvested stalks laterally to the front of the elevator 3 and rakes them into the front of the elevator 3 using a rake-in rod.

<Elevator>
The elevator 3 comprises a rectangular cylindrical elevator case body 30 having front and rear openings, and a conveyor installed within the elevator case body 30 for transporting the harvested stalks to the threshing device 5 at the rear.

<Threshing equipment>
The threshing device 5 has a threshing drum 53 having threshing teeth 52 mounted on a shaft facing in the fore-and-aft direction of the machine body within a cylindrical threshing chamber 51 formed at the upper part by a threshing drum cover 50.

The threshing drum 53 has a front feed section 54, which is the front member in the direction of material transfer, with a conical tapered section 54a at the tip, which becomes larger at the rear, and a spiral 54b that transports the harvested stalks rearward welded to it. At the rear end, a rear plate 55, which is the rear member in the direction of material transfer made of a disk, is provided. The front feed section 54 and the rear plate 55 are connected by six threshing tooth support members 56 arranged at equal intervals on the circumference of the rear plate 55 in the front-to-rear direction, and the threshing drum shaft 57, which is driven and rotated and is provided through the center, is mounted on the machine frame 50a.

A number of handling teeth 52 are provided on the outside of the six handling tooth support members 56.

In addition, a cylinder 58 is provided inside each of the six tooth support members 56 to connect the front feed section 54 and the rear plate 55, and an intermediate plate 59 is provided at the midpoint between the front and rear of the six tooth support members 56 to connect the six tooth support members 56 and the cylinder 58, improving rigidity.

The handling drum 53 is driven to rotate in the direction of the arrow (A), and at the portion of the handling chamber 51 where the handling drum 53 moves from bottom to top, a first resistance plate 60a facing horizontally and a second resistance plate 60b facing downward are provided as resistance bodies made of an elastic material such as a rubber plate.

The first horizontal resistance plate 60a and the second downward resistance plate 60b are arranged to protrude from the machine frame 50a of the threshing device 5 into the threshing chamber 51, with their tips reaching near the rotation trajectory R of the threshing teeth 52.

Therefore, when the threshing drum 53 rotates in the direction of the arrow (A) in the threshing chamber 51 to thresh the stalks (processed material) with the threshing teeth 52, the first resistance plate 60a and the downward-facing second resistance plate 60b provide resistance to the movement of the stalks (processed material), so that the threshing process can be carried out properly.

In other words, the first resistance plate 60a and the downward-facing second resistance plate 60b provide resistance to the movement of the stalks (processing material), breaking up clumps of stalks (processing material) and separating the straw from the grains, allowing the threshing process to be carried out quickly.

In addition, the first resistance plate 60a and the downward-facing second resistance plate 60b provide resistance to the movement of the stalk (processing material) and increase the relative speed between the handling teeth 52 and the stalk (processing material), promoting the grains to leak out of the receiving net 50b and allowing the grains to be efficiently collected.

In addition, the horizontal first resistance plate 60a and the downward second resistance plate 60b are formed from an elastic body such as a rubber plate, so when a large amount of stalks (processing material) is put into the handling chamber 51 and the threshing processing volume is large, the horizontal first resistance plate 60a and the downward second resistance plate 60b are pushed and deformed by the stalks (processing material), opening the gap between their tips and the rotation trajectory R of the handling teeth 52, and when there is a small amount of stalks (processing material), they close, providing an appropriate resistance to the movement of the stalks (processing material) regardless of the threshing processing volume, allowing the threshing process to be performed well. The amount of stalks (processing material) filled in the handling chamber 51 is then equalized overall, allowing the threshing process to be performed appropriately.

In addition, the first horizontal resistance plate 60a and the second downward resistance plate 60b have inclined portions 60a', 60b' at their front ends (the ends on the front feed section 54 side), which prevents the stalks (processed material) fed into the handling chamber 51 from getting caught on the front ends of the first horizontal resistance plate 60a and the second downward resistance plate 60b, allowing the stalks (processed material) to move appropriately backward and threshing to be performed appropriately.

The horizontal first resistance plate 60a and the downward second resistance plate 60b are fixed by wing bolts in elongated holes in the handling chamber 51 direction provided in the machine frame 50a of the threshing device 5. The wing bolts can be loosened to change the amount of protrusion of the horizontal first resistance plate 60a and the downward second resistance plate 60b into the handling chamber 51 (changing the distance between their tips and the rotation trajectory R of the handling teeth 52), and then the wing bolts can be tightened to fix the horizontal first resistance plate 60a and the downward second resistance plate 60b, providing a movement resistance to the processed material according to the crop being harvested, allowing the threshing process to be carried out appropriately.

In the above, an example is shown in which two resistor plates, a horizontal first resistor plate 60a and a downward second resistor plate 60b, are provided, but only one of them may be provided, and multiple horizontal first resistor plates 60a or downward second resistor plates 60b may be provided.

The lower part of the handling chamber 51 formed by the handling drum cover 50 is equipped with a standard winnower 61, a swinging sorting shelf 62, a transfer shelf section 63, a sieve 64, a straw rack 65, a first conveyor 66, and a second conveyor 67.

In addition, a spreader-type cutting device 68 is provided at the rear of the threshing device 5 to cut the straw waste and other materials discharged from the threshing device 5. The cutting device 68 is equipped with a rotating blade (chopper) 69 that cuts the discharged stalks and a cutting blade 70 that can be raised and lowered at the bottom of the front part of the cutting device 68.

Therefore, when the harvested stalks are supplied to the threshing device 5 from the elevator 3, the threshing drum 53 rotates in the handling chamber 51 of the threshing device 5 in the direction of arrow A to perform the threshing process. At that time, as the threshing drum 53 rotates in the direction of arrow A, the harvested stalks are threshed while being transported to the exit 50d side of the handling chamber 51, and the threshed grains fall from the receiving net 50b onto the oscillating sorting shelf 62, where they are sorted by the oscillation of the oscillating sorting shelf 62 and the air blown from the winnower 61. The grains that fall from the oscillating sorting shelf 62 are collected by the first conveyor 66 and sent to the grain tank. The straw is sent from the exit 50d to the cutting processing device 68, where it is shredded and then discharged outside the machine.

The threshed grains are sent to a grain tank where they are temporarily stored, and are discharged from the grain tank by the discharge auger 15 as needed.

The threshing drum cover 50 is composed of a receiving net 50b, which is fixed to the machine frame 50a of the threshing device 5 and is formed in a net shape through which grains and the like fall downward, and an upper threshing drum cover 50c, which is formed of an upward-opening plate body whose inner side in the left-right direction of the machine body is pivotally supported relative to the receiving net 50b and whose outer side is locked in a closed state by a locking device.

In the above embodiment 1, an example is shown in which six treatment tooth support members 56 are used, but the number may be increased or decreased as necessary to four, five, or seven.

Next, we will specifically explain the combine harvesters showing embodiments 2 to 4, mainly with reference to Figures 5 to 9.

<Another embodiment>
(1) Figures 5 and 6 show a second embodiment, in which a first resistance plate 60a facing horizontally and a second resistance plate 60b facing downward are provided at a portion where the handling drum 53 moves from top to bottom within the handling chamber 51.

In addition, although an example in which two resistor plates, a horizontally oriented first resistor plate 60a and a downwardly oriented second resistor plate 60b, are provided, only one of them may be provided, and multiple horizontally oriented first resistor plates 60a or downwardly oriented second resistor plates 60b may be provided.

(2) Figures 7 and 8 show a third embodiment, in which a downward-facing second resistance plate 60b is provided at the portion where the handling drum 53 in the handling chamber 51 moves from bottom to top and at the portion where the handling drum 53 moves from top to bottom.

Although an example in which a downward-facing second resistor plate 60b is provided has been shown, a horizontally oriented first resistor plate 60a may also be provided, and multiple horizontally oriented first resistor plates 60a and downward-facing second resistor plates 60b may also be provided.

(3) Figure 9 shows the fourth embodiment, in which the resistor plates 60a and 60b are divided into multiple pieces.

That is, FIG. 9(A) shows an example in which the resistor is divided into three parts: a front divided resistor plate 61a, a middle divided resistor plate 61b, and a rear divided resistor plate 61c.

Figure 9 (B) shows an example in which the resistor is divided into two parts: a front divided resistor plate 61a and a rear divided resistor plate 61c.

The front divided resistance plate 61a, the middle divided resistance plate 61b, and the rear divided resistance plate 61c are each fixed with a wing bolt to a long hole in the direction of the handling chamber 51 provided in the machine frame 50a of the threshing device 5, and the amount of protrusion into the handling chamber 51 can be changed individually by loosening the wing bolt (changing the distance between the tip of the plate and the rotation trajectory R of the handling teeth 52). For example, if the amount of protrusion into the handling chamber 51 is reduced toward the front, the material put into the handling chamber 51 will move appropriately toward the rear, and threshing can be performed appropriately. In addition, it can be finely set to provide a movement resistance to the material according to the crop to be harvested.

(4) In the above example, the resistance plates 60a and 60b are made of an elastic material such as a rubber plate, but they may be made of a steel plate.

51 Handling chamber 52 Handling teeth 53 Handling drum 57 Handling drum shaft 60a Resistor (first resistor plate)
60b Resistor (second resistance plate)
60a' Inclined portion 60b' Inclined portion R Rotation trajectory of the treatment tooth 52

Claims (4)

In a threshing device in which a threshing drum (53) having a plurality of threshing teeth (52) in a threshing chamber (51) is mounted on a threshing drum shaft (57) so as to be freely driven and rotated, resistors (60a, 60b) are provided in the threshing chamber (51) near the rotation locus (R) of the threshing teeth (52) to provide a moving resistance to the material to be processed ,
a slope (60a', 60b') is provided at a front end of the resistor (60a, 60b) in the direction of movement of the object to be treated;
The resistors (60a, 60b) are disposed between the receiving net (50b) and the upper threshing drum cover (50c) in the rotation direction of the threshing drum (53), and are disposed at a portion where the threshing drum (53) moves from bottom to top and at a portion where the threshing drum (53) moves from top to bottom, respectively.
A threshing device characterized in that the inclined portions (60a', 60b') are located forward of the threshing teeth (52) . The threshing device according to claim 1, characterized in that the resistors (60a, 60b) are elastic rubber plates. The threshing device according to claim 1 or 2, characterized in that the tip of the resistor (60a, 60b) is a plate body located near the rotation path (R) of the threshing teeth (52) along the threshing drum (53). A threshing device according to any one of claims 1 to 3 , characterized in that the resistors (60a, 60b) are arranged so as to be freely adjustable toward or away from the rotation trajectory (R) of the threshing teeth (52).

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