JP2023157120A - Deposit removal device - Google Patents

Abstract

SOLUTION: A deposit removal device (38) comprises: a collision member (40) which collides with a swinging selection body (30) provided in a selection unit (20) of a head-feeding combine harvester (10); and a support member (42) which supports the collision member such that the collision member collides with the swinging selection body with swinging of the swinging selection body.SELECTED DRAWING: Figure 3

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deposit removal device for removing deposits from a swing sorting body provided in a sorting section of a self-detachable combine harvester.

A self-shredding combine harvester threshes harvested crops and temporarily stores the grain (paddy) in a grain tank. In order to perform grain harvesting work efficiently and reduce costs, it is conceivable to increase the operating time of the combine harvester per day. As an example, it is conceivable to perform harvesting work with a combine harvester not only during the day, but also at night, early in the morning, etc. However, when harvesting is done at night or early in the morning, the surface of the harvest may become wet due to dew or the like, which poses a problem. Harvest losses increase when the crop surface is wet. In addition, wet harvested materials tend to adhere to various parts of the combine harvester, and harvested materials also tend to adhere to each other. As a result, various parts of the combine harvester become clogged with harvested material, significantly reducing work efficiency.

Patent Document 1 discloses a device that suppresses adhesion of dust, etc. to a swinging sorting body (swinging sorting shelf) of a sorting section. This device finely vibrates the oscillating sorting body by applying high-frequency voltage to a plurality of vibrating elements attached to the oscillating sorting body. When the oscillating sorting body vibrates, it is difficult for dust etc. to adhere to its surface.

Japanese Patent Application Publication No. 2006-204102

In the device of Patent Document 1, it is necessary to connect the oscillating sorting body and the battery with wiring. Therefore, it is necessary to consider the durability and layout of the wiring. Furthermore, it is necessary to protect precision machinery that controls voltage in harsh environments with dust, vibration, etc. Furthermore, when a battery is provided in the oscillating sorting body, there is a possibility that the behavior of the oscillating sorting body is adversely affected. Furthermore, in order to cause the oscillating sorting body to vibrate finely, it is necessary to precisely control the frequency. It is difficult to perform such frequency control with a combine harvester in a field. For these reasons, it is desirable to remove deposits from the oscillating sorting body by a method that does not use electric power.

The present invention aims to solve the above-mentioned problems.

The deposit removal device according to an aspect of the present invention includes a collision member that collides with a swinging sorter provided in a sorting section of a self-detachable combine harvester, and a collision member that collides with the swinging sorter by the swinging of the swinging sorter. and a support member that supports the collision member so as to collide with the collision member.

According to the present invention, it is possible to vibrate the oscillating sorting body without requiring an independent power source and operation control, and thereby it is possible to eliminate adhesion of dust, etc. to the oscillating sorting body. Further, according to the present invention, it is possible to suppress deterioration of the deposit removal device in an environment with dust, vibration, etc.

FIG. 1 is a left side view of a self-extracting combine harvester. FIG. 2 is a right side view of the self-extracting combine harvester. FIG. 3 is a schematic diagram of a rocking sorter and a deposit removing device according to the first embodiment. FIG. 4 is a schematic diagram of a rocking sorter and a deposit removing device according to a second embodiment. FIG. 5 is a schematic diagram of a rocking sorter and a deposit removing device according to a third embodiment. FIG. 6 is a schematic diagram of a rocking sorter and a deposit removing device according to a fourth embodiment.

[1 Self-extraction combine 10]
FIG. 1 is a left side view of the self-extracting combine harvester 10. As shown in FIG. FIG. 2 is a right side view of the self-extraction combine 10. The self-separating combine harvester 10 includes a running section 12, a reaping section 14, a conveying section 16, a threshing section 18, a sorting section 20, a grain tank 22, and a grain discharge section 24.

The traveling section 12 rotates an endless track such as a crawler to cause the self-extracting combine harvester 10 to travel. The reaping unit 14 reaps crops in the field. The conveyance section 16 conveys the crops harvested by the reaping section 14 to the threshing section 18 at the rear. The threshing section 18 threshes the crops transported by the transport section 16. The sorting section 20 sorts the grains from the grains removed from the stalks by the threshing section 18 and foreign matter (straw waste) mixed with the grains. A horizontal conveyance auger and a vertical conveyance auger (not shown) convey the grains sorted by the sorting section 20 to the supply port of the grain tank 22. The grain tank 22 temporarily stores grains. The grain discharge unit 24 discharges the grains discharged from the grain tank 22 into a container or the like outside the self-destruction combine 10 using a vertical discharge auger and a horizontal discharge auger (not shown). A deposit removing device 38, which will be described below, is attached to the sorting section 20 of the self-detachment combine harvester 10.

[2 Deposit removal device 38 according to the first embodiment]
FIG. 3 is a schematic diagram of the oscillating sorting body 30 and the deposit removing device 38 according to the first embodiment. The sorting section 20 is provided with a swing sorting body 30. The swing sorting body 30 is also called a swing sorting shelf, a swing shelf, a swing plate, or the like. The swing sorting body 30 swings in the vertical direction by the operation of a swing mechanism (not shown).

The swinging sorter 30 has a grain pan 32 and a chaff sieve 34. The grain pan 32 is located below the handling cylinder (not shown) and the receiving net (not shown) of the threshing section 18. The grain pan 32 swings and conveys the grains and fine straw waste that have passed through the receiving net to the rear. The chaff sieve 34 is located at the rear of the grain pan 32. The chaff sieve 34 is oscillated to separate grains sent from the grain pan 32 and straw waste. The grains sorted by the chaff sieve 34 are conveyed to the grain tank 22.

The deposit removing device 38 is located below the grain pan 32. The deposit removal device 38 includes a collision member 40 and a support member 42.

The collision member 40 is a member that can vibrate the grain pan 32 by colliding with the bottom surface of the grain pan 32 from below and applying an impact to the grain pan 32. The collision member 40 is formed of, for example, a metal member such as iron, and a resin covering the metal member. Alternatively, the collision member 40 may be made of resin. When the swing sorting body 30 is not swinging, the collision member 40 and the grain pan 32 are spaced apart from each other.

The support member 42 is an elastic member 44, for example a leaf spring. The first end 44a of the elastic member 44 is attached to the lower side of the grain pan 32. The second end 44b of the elastic member 44 is attached to the collision member 40. The elastic member 44 is inclined downward at a predetermined angle with respect to the bottom surface of the grain pan 32, and extends obliquely backward and downward from the first end 44a toward the second end 44b. The elastic member 44 supports the collision member 40 away from the grain pan 32 when the swing sorting body 30 is not swinging. Further, the elastic member 44 supports the collision member 40 so that the collision member 40 collides with the grain pan 32 due to the swinging of the swing sorting body 30.

When the grain pan 32 moves upward during rocking, upward kinetic energy is applied to the collision member 40 via the elastic member 44. Then, the collision member 40 moves upward following the grain pan 32. Next, when the moving direction of the grain pan 32 changes from upward to downward, downward kinetic energy is applied to the collision member 40 via the elastic member 44. However, the kinetic energy of the collision member 40 moving upward is greater than the kinetic energy applied via the elastic member 44. Therefore, the collision member 40 continues to move upward while bending the elastic member 44. As a result, the collision member 40 collides with the bottom surface of the grain pan 32. After the collision, the collision member 40 moves downward. When the collision member 40 collides with the grain pan 32, the grain pan 32 vibrates due to the impact. Due to this vibration, the deposits adhering to the surface of the grain pan 32 are peeled off from the surface and fall.

As described above, the deposit removing device 38 operates using the power of the oscillating sorting body 30. Further, the deposit removing device 38 vibrates the swing sorting body 30 by colliding with the grain pan 32 using inertia. Therefore, the deposit removal device 38 does not require its own power source. Further, the deposit removing device 38 does not require operation control. Further, since the deposit removing device 38 has a simple structure including the elastic member 44 and the collision member 40, the degree of freedom in layout is high, and deterioration is suppressed in an environment with dust, vibration, etc. In other words, the durability of the deposit removing device 38 is high. Moreover, since the deposit removing device 38 is arranged below the grain pan 32, it does not obstruct the flow of grains.

The adhesion removing device 38 can solve the problem of grains, straw waste, etc. adhering to the oscillating sorting body 30. Therefore, crops can be harvested using the self-removal combine 10 even in situations where moisture tends to adhere to grains, for example, in the early morning when morning dew is likely to occur and at night when night dew is likely to occur. As a result, it becomes possible to perform the harvesting work efficiently, and it becomes possible to reduce the cost of the harvesting work.

[3 Deposit removal device 38 according to second embodiment]
FIG. 4 is a schematic diagram of the oscillating sorting body 30 and a deposit removing device 38 according to the second embodiment. Note that among the configurations of the second embodiment, the same configurations as those of the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

The support member 42 is a flexible linear member 46, such as a string or chain. The first end 46a of the linear member 46 is attached to the lower side of the grain pan 32. The second end 46b of the linear member 46 is attached to the collision member 40. The linear member 46 suspends the collision member 40 from the grain pan 32. The linear member 46 supports the collision member 40 away from the grain pan 32 when the swing sorting body 30 is not swinging. Further, the linear member 46 supports the collision member 40 so that the collision member 40 collides with the grain pan 32 due to the swinging of the swing sorting body 30.

When the grain pan 32 moves upward during rocking, upward kinetic energy is applied to the collision member 40 via the linear member 46. Then, the collision member 40 moves upward following the grain pan 32. Next, even if the moving direction of the grain pan 32 changes from upward to downward, the collision member 40 continues to move upward. As a result, the collision member 40 collides with the bottom surface of the grain pan 32. After the collision, the collision member 40 moves downward. When the collision member 40 collides with the grain pan 32, the grain pan 32 vibrates due to the impact. Due to this vibration, the deposits adhering to the surface of the grain pan 32 are peeled off from the surface and fall.

The deposit removing device 38 according to the second embodiment has the same effect as the deposit removing device 38 according to the first embodiment.

[4 Deposit removal device 38 according to third embodiment]
FIG. 5 is a schematic diagram of the oscillating sorting body 30 and a deposit removing device 38 according to a third embodiment. Note that among the configurations of the third embodiment, the same configurations as those of the first and second embodiments are given the same reference numerals, and detailed explanation thereof will be omitted.

The support member 42 is a guide member 48 that guides the vertical movement of the collision member 40. The guide member 48 has a shaft 50 and a stopper 52. The shaft 50 extends in the vertical direction. The first end 50a of the shaft 50 is attached to the lower side of the grain pan 32. The second end 50b of the shaft 50 is attached to a stopper 52. A penetrating hole 54 is formed in the collision member 40 . The diameter of the hole 54 is larger than the diameter of the shaft 50 and smaller than the diameter of the stopper 52. The shaft 50 is inserted into the hole 54 of the collision member 40 and guides the collision member 40 in the vertical direction. On the other hand, the stopper 52 limits the downward movement position of the collision member 40. Therefore, the collision member 40 is movable along the shaft 50 between the grain pan 32 and the stopper 52. The guide member 48 supports the collision member 40 away from the grain pan 32 when the swing sorting body 30 is not swinging. Further, the guide member 48 supports the collision member 40 so that the collision member 40 collides with the grain pan 32 due to the swinging of the swing sorting body 30.

When the grain pan 32 moves upward during rocking, upward kinetic energy is applied to the collision member 40 via the stopper 52. Then, the collision member 40 moves upward following the grain pan 32. Next, even if the moving direction of the grain pan 32 changes from upward to downward, the collision member 40 continues to move upward along the shaft 50. As a result, the collision member 40 collides with the bottom surface of the grain pan 32. After the collision, the collision member 40 moves downward. When the collision member 40 collides with the grain pan 32, the grain pan 32 vibrates due to the impact. Due to this vibration, the deposits adhering to the surface of the grain pan 32 are peeled off from the surface and fall.

The deposit removing device 38 according to the third embodiment has the same effect as the deposit removing device 38 according to the first and second embodiments.

[5 Deposit removal device 38 according to the fourth embodiment]
FIG. 6 is a schematic diagram of the oscillating sorting body 30 and a deposit removing device 38 according to a fourth embodiment. Note that among the configurations of the fourth embodiment, the same configurations as those of the first to third embodiments are denoted by the same reference numerals, and detailed description thereof will be omitted.

The support member 42 is an elastic member 56, such as a coil spring. A first end 56a of the elastic member 56 is attached to a fixed portion 58 located below the grain pan 32. The fixed portion 58 is a separate device that is not included in the frame of the self-detachable combine harvester 10 or the swinging sorter 30. The second end 56b of the elastic member 56 is attached to the collision member 40. The elastic member 56 extends upward (directly upward or diagonally upward) from the first end 56a toward the second end 56b. The elastic member 56 supports the collision member 40 away from the grain pan 32 when the swing sorting body 30 is not swinging. Further, the elastic member 56 supports the collision member 40 so that the collision member 40 collides with the grain pan 32 due to the swinging of the swing sorting body 30.

When the grain pan 32 moves downward during rocking, the collision member 40 collides with the bottom surface of the grain pan 32. At the time of a collision, the collision member 40 begins to move downward while causing the elastic member 56 to retract or deflect. This prevents damage to the grain pan 32 due to the collision of the collision member 40. When the collision member 40 collides with the grain pan 32, the grain pan 32 vibrates due to the impact. Due to this vibration, the deposits adhering to the surface of the grain pan 32 are peeled off from the surface and fall.

The deposit removing device 38 according to the fourth embodiment has the same effects as the deposit removing device 38 according to the first to third embodiments.

[6 Invention obtained from embodiment]
The invention that can be understood from the above embodiments will be described below.

A deposit removing device (38) according to an aspect of the present invention includes a collision member (40) that collides with a swinging sorting body (30) provided in a sorting section (20) of a self-detachment combine harvester (10), and a collision member a support member (42) that supports the collision member so that it collides with the oscillating sorting body when the oscillating sorting body swings.

In the above aspect, the swinging sorting body swings in the vertical direction, and the support member supports the collision member below the swinging sorting body, so that the collision member is applied to the swinging sorting body from below. may collide.

In the above aspect, the support member may be an elastic member (44) attached to the swinging sorting body and extending diagonally downward from the swinging sorting body toward the collision member.

In the above aspect, the support member may be a flexible linear member (46) that is attached to the swinging sorter and suspends the collision member from the swinging sorter.

In the above aspect, the support member may be a guide member (48) that is attached to the swing sorting body and guides vertical movement of the collision member.

In the above aspect, the support member may be an elastic member (56) attached to a portion other than the swinging sorter and extending upward.

DESCRIPTION OF SYMBOLS 10... Self-removal combine 20... Sorting part 30... Rocking sorter 38... Adhesive matter removing device 40... Collision member 42... Support members 44, 56... Elastic member 46... Linear member 48... Guide member

Claims (6)

a collision member that collides with a swinging sorting body provided in a sorting section of the self-detachment combine;
a support member that supports the collision member so that the collision member collides with the oscillating sorting body due to the oscillation of the oscillating sorting body;
A deposit removal device comprising: The deposit removal device according to claim 1,
The oscillating sorting body oscillates in the vertical direction,
The supporting member supports the collision member below the swinging sorting body, thereby causing the collision member to collide with the swinging sorting body from below. The deposit removal device according to claim 2,
The support member is an elastic member attached to the swinging sorting body and extending diagonally downward from the swinging sorting body toward the collision member. The deposit removal device according to claim 2,
The support member is a flexible linear member that is attached to the swinging sorting body and suspends the collision member from the swinging sorting body. The deposit removal device according to claim 2,
The support member is attached to the rocking sorter and is a guide member that guides vertical movement of the collision member. The deposit removal device according to claim 2,
The support member is an elastic member that is attached to a portion other than the swing sorting body and extends upward.

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