JPH11137066A - Threshing chamber in threshing apparatus of combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the threshing chamber so designed that a rotator for feeding grain culms from a feeder house into the threshing chamber is set up close to its inlet under a threshing cylinder so as to efficiently transfer a large quantity of grain culms without their staying at the inlet even if such a plenty of grain culms have been brought. SOLUTION: In the threshing apparatus of a combine harvester where a threshing chamber 50 is equipped with a screw-type threshing cylinder 51, and a rotator 70 mounted on a rotary drive shaft 70a receiving driving force from a drive unit and designed to feed grain culms from a feeder house into the threshing chamber 50 is set up close to an inlet 50x of the threshing chamber 50 under the threshing cylinder 51, furthermore, the following scheme may also be taken: the rotary drive shaft 70a is parallel with the drive shaft of a chain conveyor 31 in a feeder house, the side of the rotator 70 represents an arc-shaped surface nearly constantly spaced from the outer circumference of the threshing cylinder 51, and the minor axial site at the center of the side of the rotator 70 is in contact with a feed plate 33 serving to deliver grain culms from the feeder house to the threshing chamber 50.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handling room in a threshing apparatus of a combine for cutting and threshing cereals such as rice, and more particularly to a handling room characterized in the vicinity of an entrance.

[0002]

2. Description of the Related Art In a conventionally known general-purpose combine, when the flow rate of cereal culm increases due to the delivery area from a feeder house to a handling room and the shape of a handling cylinder near the handling room, the cereal culm at the entrance of the handling room is increased. There was a problem that the transfer was delayed.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide a combine threshing apparatus in which a large amount of grain stems are transferred. Another object of the present invention is to provide a handling room capable of efficiently transferring the material without being stopped at the entrance of the handling room.

[0004]

In order to achieve the above object, the present invention solves the problem by providing a member for feeding cereals from a feeder house to a handling room at an entrance of the handling room. That is, in a combine threshing device having a screw-type handling cylinder in the handling room, in the vicinity of the handling room entrance under the handling cylinder, the grain is attached to a rotating drive shaft that transmits and receives a driving force from a driving device, and rotates. Is provided from the feeder house to the handling room. Then, the cereals are forcibly sent from the feeder house to the handling room by the rotating body, so that even if the flow rate of the cereals increases, the transfer of the grain stalk at the entrance of the handling room is prevented.

Here, the rotating drive shaft of the rotating body is made parallel to the chain conveyor drive shaft of the feeder house, and the side surface of the rotating body is constituted by an arc surface whose distance from the outer periphery of the handling drum is substantially constant. When the short-diameter portion at the center of the side surface is disposed so as to be in contact with the supply plate for transferring the cereals from the feeder house to the handling room, effective transfer can be performed with a simple configuration.

On the other hand, effective transfer can be performed even by using a conical rotating body attached to a cantilever drive shaft. That is, when the handling cylinder and the center of the feeder house in the width direction are aligned, two rotating bodies are used, and one body is provided one by one with the handling cylinder interposed therebetween near the entrance of the handling chamber on both sides below the handling cylinder. When the center of the feeder house in the width direction is shifted in the horizontal direction, one rotating body is used and provided near the entrance of the handling chamber on one side under the handling cylinder near the center of the feeder house.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. The embodiment can be appropriately designed and modified without departing from the gist of the present invention. First, the outline of the combine is as follows. FIG.
FIG. 2 is a schematic side view of the entire combine. The combine consists of a crawler (A) for driving and driving the fuselage, a threshing unit (D) mounted on the crawler, a culm cutting unit (B) installed in front, and a cutting unit (B). It is roughly divided into a transport unit (C) that sends the cereal stem to the threshing unit (D).

The main components of the cutting device (B) are a scraping reel (10), a cutting blade (11) and a scraping auger (12). The grain stalk is scraped by the scraping reel (10), cut by the cutting blade (11), and then sent from the scraping auger (12) to the transport device (C). In the transport device section (C), it is raised by the chain conveyor (31) in the feeder house (30) and sent to the threshing device section (D).

[0009] In the threshing unit (D), the cereal culm is first transferred into the handling chamber (50), and is conveyed in the axial direction by a screw-type handling cylinder (51) while friction with the crimping net (52). Threshed. Threshed cereal is used as a handling cylinder (51)
From the crimping net (52) below the rocking screen (5).
3) It is dropped on top and sorted, and the long straw is collected at the rear exhaust port (5).
It is carried to 4). The threshed sorted by the rocking sorting plate (53) is sorted by the sorting wind by Karino (55), and the cereals fall to the first gutter (56) and the second fall to the second gutter (57). I do. The cereals falling to the first gutter (56) are transported to the paddy tank via a fryer cylinder, and the second fallen to the second gutter (57) is placed on a swing sorting plate (53) by a second return auger. Return to

A cutting blade (51c) is provided near the end of the handling cylinder (51), and a receiving blade (not shown) is provided in the handling chamber (50) in response thereto. As a result, the waste straw is cut into a substantially uniform length, entanglement with the swing sorting plate (53) is prevented, and scattering is improved. In addition, feeder house (30)
And a heater (30) such as a hot wire on the inner wall of the handling room (50).
a) (50a) is mounted. As a result, the grain stalk is dried, and the work and threshing efficiency in rainy weather are improved.

The outline of the combine is as described above.
In the threshing unit (D) of the combine, even if a large amount of grain stalks are transferred, the present invention is designed to prevent stagnation in taking in the handling room entrance (50x). Remove the culm from the feeder house (30) to the handling room (5
The member to be fed into 0) is attached near the handling room entrance (50x) to be improved. 2 and 3 show the handling room entrance (5
It is the side view and front view which show the principal part of 0x) vicinity. The grain stalks conveyed by the chain conveyor (31) of the conveyor unit (C) are transferred to the handling room (50) of the threshing unit (D) through an inclination of about 40 degrees.

Here, the handling room entrance (50) below the handling cylinder (50)
In the vicinity of x), a rotating body (70) is provided. The shape of the shaft (70a) is such that the chain conveyor drive wheels (3
It has a substantially drum shape parallel to the axis (32a) of 2). The side surface of the rotating body (70) is constituted by an arc surface whose distance from the outer periphery of the handling cylinder (50) is substantially constant.
The stalk is in contact with a supply plate (33) for transferring the culm from the feeder house (30) to the handling room (50). According to this configuration, since the rotating body (70) acts on the dead space of the handling room entrance (50x) together with the intake spiral (51x), the grain stem can be efficiently forcibly transferred. by this,
Also, it is possible to prevent the stalks that have accumulated at the handling room entrance (50x) from returning to the pruning device (B) and causing trouble. In addition, the rotating body shaft (70a) receives and transmits a driving force from a driving device (not shown) and is driven to rotate. Also,
On the side surface of the rotating body (70), the groove (70b) is
By providing in the direction, the frictional force with the grain stalk may be increased to enhance the forced transfer effect.

On the other hand, effective transfer can also be performed by using a conical rotary body (71) attached to the cantilever drive shaft (71a). FIG. 4 shows the handling room entrance (50x) of the embodiment using two rotating bodies (71) when the handling cylinder (50) and the center (50m) (30m) in the width direction of the feeder house (30) are aligned. It is a top view which shows the principal part of vicinity. The widthwise center (5) of the handling cylinder (50) and the feeder house (30)
0m) (30m), the rotating body (71)
Are provided one by one near the handling chamber entrance (50x) on both sides below the handling cylinder (50) with the handling cylinder (50) interposed therebetween. According to this configuration, the rotating body (71) acts on the dead space at the entrance of the handling room (50x) together with the intake spiral (51x), so that the grain stem can be efficiently and forcibly transferred. Also,
Since the rotating body (71) is conical, the winding of the cereal stem is suppressed, and since the drive shaft (71a) is cantilevered, the wrapped cereal stem can be easily removed.

FIGS. 5 and 6 show an embodiment in which one rotating body (71) is used when the widthwise center (50m) (30m) of the handling cylinder (50) and the feeder house (30) is shifted in the horizontal direction. It is the front view and top view which show the principal part near the handling room entrance (50x) of an example. When the width direction center of the handling cylinder (50) and the feeder house (30) is shifted in the horizontal direction,
The rotating body (71) is provided near the handling chamber entrance (50x) on the lower side of the handling cylinder (50) near the center (30 m) of the feeder house. According to this configuration, the dead space at the entrance of the handling room (50x) is increased, but the grain culm can be efficiently forcibly transferred by the action of the rotating body (71). In addition, even if the feeder house (30) is arranged at the center in the combine width direction, the threshing unit (D) is shifted to the left in the combine traveling direction, and the engine, the grain tank, etc. are placed in the space on the right side in the combine travel direction. Installation makes it easier to balance the whole.

[0015]

The handling room in the combine threshing apparatus of the present invention has the following effects because it has the above-described configuration. That is, according to the handling room of the first aspect, since the rotating body is provided near the handling room entrance below the handling cylinder, the grain stalk is forcibly sent from the feeder house to the handling room.
Therefore, even if the flow rate of the grain stalk increases, the transfer of the grain stalk at the entrance of the handling room is prevented from being delayed. According to the second aspect of the present invention, since the rotating body acts on the dead space, the transfer can be performed effectively with a simple configuration. According to the handling chamber of the third aspect, since the rotating body has a conical shape attached to the cantilever drive shaft, it is possible to suppress the winding of the grain stalk and easily remove the wound grain stalk. According to the handling room according to claim 4, the threshing device is shifted to the left in the combine traveling direction and installed, and an engine, a grain tank, and the like are installed in a space on the right in the combine traveling direction,
Overall balance can be easily achieved.

[Brief description of the drawings]

FIG. 1 is a schematic side view of the entire combine.

FIG. 2 is a side view showing the vicinity of a handling room entrance.

FIG. 3 is a front view of the same.

FIG. 4 is a plan view showing the vicinity of a handling room entrance of another embodiment.

FIG. 5 is a front view showing the vicinity of a handling room entrance of another embodiment.

FIG. 6 is a plan view of the same.

[Explanation of symbols]

 Reference Signs List A crawler B pruning unit C transporting unit D threshing unit 10 scraping reel 11 cutting blade 12 scraping auger 30 feeder house 30a heater 30m center 31 chain conveyor 32 drive wheel 32a shaft 33 supply plate 50 handling room 50a heater 50m center 50x handling room entrance 51 handling cylinder 51a spoiler 51b handling teeth 51c cutting blade 51x intake spiral 52 crimping net 53 swing sorting plate 54 exhaust port 55 Karino 56 first gutter 57 second gutter 70, 71 rotating body 70a, 71a drive Shaft 70b, 71b Groove 72 Bearing

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Junichi Masano 1-32 Chaya-cho, Kita-ku, Osaka-shi, Osaka Inside Yanmar Agricultural Machinery Co., Ltd. (72) Yuichi Shinfuku 1st Chaya-cho, Kita-ku, Osaka, Osaka No. 32 Yanmar Agricultural Machinery Co., Ltd.

Claims (4)

[Claims] 1. A combine threshing device comprising a screw-type handling cylinder in a handling room, wherein the threshing device is provided near an entrance of a handling room below the handling cylinder.
A handling room in a combine threshing device, comprising: a rotating body that is attached to and rotates on a rotary drive shaft that transmits and receives a driving force from a driving device, and that feeds a grain stalk from a feeder house to a handling room. 2. A rotary body, wherein a rotary drive shaft of the rotary body is parallel to a chain conveyor drive shaft of the feeder house, and a side surface of the rotary body is constituted by an arc surface which makes a distance between the rotary body and the outer periphery of the handling cylinder substantially constant. The handling room in the threshing apparatus of the combine according to claim 1, wherein the short diameter portion at the center of the side surface is disposed so as to be in contact with a supply plate for transferring the grain stalk from the feeder house to the handling room. 3. The rotating body according to claim 1, wherein the rotating body has a conical shape attached to the cantilever drive shaft, and is provided one by one with the handling cylinder interposed therebetween near the handling chamber entrance on both sides below the handling cylinder. The handling room of the combine threshing equipment. 4. A conical rotating body attached to a cantilevered drive shaft, wherein a center of the handling cylinder and a width direction of the feeder house are shifted in a horizontal direction, and a handling chamber entrance at a lower side of the handling cylinder near the center of the feeder house. The handling room in the threshing device of the combine according to claim 1, which is provided in the vicinity.