JP2013247914A - Thresher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thresher capable of advantageously carrying out work relating to an entrance guiding route that guides reaped stalks of grain culms from a feeder to a threshing chamber.SOLUTION: There is provided a thresher comprising an entrance guide route composed of an entrance guiding bottom wall body 50 installed on a lower part of a screw part located on the front end side of a threshing cylinder in an inclined posture being higher as closer to the threshing cylinder, a lateral sidewall part 60 located at a lateral side of the position of the entrance guiding bottom wall body 50 in the lateral side walls of the thresher, and a lateral wall part 70 located at the lateral side of the entrance guiding bottom wall body 50 in the lateral side wall of the thresher. The entrance guiding bottom wall body 50 is configured so as to be supported detachably. The left side lateral wall part 60 and the right side lateral wall part 70 are supported detachably.

Description

  The present invention relates to a threshing apparatus configured to scrape a harvested cereal meal from a feeder into a handling chamber by means of a screw part provided integrally and freely on the front end side of a handling cylinder.

In the above-described threshing apparatus, an inlet guide path is provided at the lower part of the screw part in the threshing machine body, and the cereal grains that are fed from the feeder and received by the screw part are guided to the handling room.
Conventionally, as this type, for example, as shown in Patent Document 1, there is an apparatus in which an inlet supply plate is provided at a portion connecting a feeder house and a handling room.

Japanese Patent Laid-Open No. 11-225556

  In the threshing apparatus described above, the structure that forms the entrance guide path is contaminated and worn by the contact of the stems and grains that have been scratched by the screw part, and the structure that forms the entrance path is cleaned. Replacement is required. When work related to the entrance guide path is required, such as replacing the structure that forms the entrance guide path, the feeder is moved away from the front part of the threshing apparatus, and the cereal input provided at the front part of the threshing apparatus is inserted. The mouth is opened, and the operation can be performed with the grain input port as a work opening. In this case, it is necessary to prepare a large-scale removal device by removing a large and heavy feeder, and a large amount of labor and labor are required.

  The objective of this invention is providing the threshing apparatus which can perform the work regarding an entrance guidance path | route advantageously.

This first invention is a threshing apparatus configured to scrape the harvested cereal meal from the feeder into a handling chamber by a screw part provided on the front end side of the handling cylinder so as to be integrally rotatable,
An inlet guide bottom wall provided in an inclined posture having a higher arrangement height toward the handling chamber side below the screw portion inside the threshing machine body, and a side of the inlet guide bottom wall body among the left side walls of the threshing machine body The handling cereal from the feeder is handled by a lateral side wall portion located on the side and a lateral side wall portion located on the lateral side of the inlet guide bottom wall body among the right side walls of the threshing machine body. Configure the entrance guide route to guide the flow to the chamber,
The inlet guide bottom wall body is configured to be detachably supported,
At least one of the left side wall portion and the right side wall portion is configured to be detachably supported.

  According to the configuration of the first aspect of the invention, by removing the side wall portion that is detachably supported, an opening is provided in the side wall portion, and this opening is used as a work opening to clean the inlet guide bottom wall body and the side wall portion. Can be removed from the threshing machine inside the inlet guide bottom wall body, so that the inlet guide bottom wall body and the side wall portion can be removed and removed without separating the feeder. This can be done simply by removing the side wall.

  Therefore, according to the first aspect of the present invention, the work on the inlet guide path, such as cleaning and exchanging the inlet guide bottom wall and the side wall portion, is performed as compared to providing a work opening by separating the feeder. It can be done cheaply and easily.

  In the second aspect of the present invention, the left side wall portion and the right side wall portion of the left side wall portion are located on the lower side in the rotational direction of the lower end portion of the handling cylinder with respect to the inlet guide bottom wall body. It is configured to be supported detachably.

  Of the left side wall part and the right side wall part on the left side, the side wall part located on the lower side in the rotational direction of the lower end of the handling cylinder with respect to the inlet guide bottom wall body, compared to the other side wall part, Wear due to abutment of grains or the like that have been scratched by the screw portion is likely to occur. Therefore, according to the configuration of the second aspect of the present invention, it is possible to make the lateral side wall portion configured to be detachable so as to provide the work opening and the lateral side wall portion that easily wears out to be the same.

  Therefore, according to the second aspect of the invention, the detachable lateral side wall portion has, for example, a relatively large wall thickness, has excellent shape retention strength, and is difficult to be deformed regardless of occurrence of wear. An advantageous lateral wall portion that can be easily handled and opened / closed at the time of detachment and can be used over a long period of time regardless of wear can be obtained simply and inexpensively.

  In the third aspect of the invention, the left lateral wall portion and the right lateral wall portion are detachably supported.

  According to the configuration of the third aspect of the invention, the left and right side wall portions are removed to provide work openings on the left and right side walls, or only the left or right side wall portion is removed to either the left or right side wall. Only a work opening can be provided.

  Therefore, according to the third aspect of the invention, depending on the content and scale of the work on the entrance guide route, work can be easily performed by providing work openings on the left and right side walls, or on the left and right side walls. By providing an opening, it is possible to work quickly with less time for opening and closing.

  In the fourth aspect of the present invention, the left side wall portion and the right side wall portion of the side wall portion located on the lower side in the rotational direction of the lower end portion of the handling cylinder with respect to the inlet guide bottom wall body The wall thickness of the side wall portion of the left side wall portion and the right side wall portion which is located on the upper side in the rotational direction of the lower end portion of the handling cylinder with respect to the inlet guide bottom wall body It is set larger.

  Of the left and right side wall parts, the side wall part located on the lower side in the rotational direction of the lower end of the handle cylinder with respect to the inlet guide bottom wall body, such as grains scraped by the screw part Since wear due to contact tends to occur more easily than the other side wall portion, according to the configuration of the fourth aspect of the present invention, the wear difference generated between the left side wall portion and the right side wall portion is reduced. Regardless, due to the difference in wall thickness between the left and right side wall portions, the service life of the left and right side wall portions can be the same or substantially the same.

  Therefore, according to the fourth aspect of the invention, regardless of the wear difference between the left side wall portion and the right side wall portion, it is advantageous to replace the left side wall portion and the right side wall portion at once after being used as much as possible. The method can be adopted.

  In the fifth aspect of the present invention, the inlet guide bottom wall is configured to be divided into a divided inlet guide bottom wall located on the feeder side and a divided inlet guide bottom wall located on the handling chamber side.

  According to the structure of this 5th invention, in order to take out an entrance guide bottom wall body from the work opening which removed and provided the side wall part in the side wall of the threshing machine body, an entrance guide bottom wall body is made into the feeder side and the handling chamber side. Divided into divided inlet guide bottom wall, smaller in size than the inlet guide bottom wall and easy to handle and pass through the work opening. Can be taken out separately from the body. In addition, if there is a difference in wear between the feeder entrance and the handling chamber side dividing entrance guide bottom wall body, the divided guide bottom wall body with less wear is continuously used, and the divided guide bottom wall with more wear is used. Only the body can be exchanged.

  Therefore, according to the fifth aspect of the invention, in order to repair or replace the structure constituting the inlet guide path, the inlet guide bottom wall is divided into the divided guide bottom wall of the feeder side and the handling chamber side. Cleaning and replacement can be advantageous in terms of efficiency and cost by easily taking out or exchanging only the divided guide bottom wall that is worn more.

  In the sixth aspect of the invention, the wall thickness of the divided inlet guide bottom wall body located on the handling chamber side is set larger than the wall thickness of the divided inlet guide bottom wall body located on the feeder side.

  According to the configuration of the sixth aspect of the present invention, wear due to abutment of grains or the like that have been scratched by the screw portion tends to occur more easily in the handling chamber side portion of the inlet guide bottom wall body than in the feeder side portion. Regardless of the wear difference between the handling chamber side portion and the feeder side portion, the divided inlet guide bottom wall on the feeder side and the handling chamber side is caused by the difference in the wall thickness of the divided inlet guide bottom wall bodies on the feeder side and the handling chamber side. The life of the body can be the same or nearly the same.

  Therefore, according to the sixth invention, regardless of the wear difference between the feeder side portion and the handling chamber side portion of the inlet guide bottom wall body, the divided inlet guide bottom wall bodies on the feeder side and the handling chamber side are used as much as possible. It is possible to adopt an advantageous exchange method of exchanging all at once later.

  In the seventh aspect of the present invention, the lateral side wall portion that is detachably supported is configured to be divided into a divided lateral side wall portion located on the feeder side and a divided lateral side wall portion located on the handling chamber side.

  According to the configuration of the seventh aspect of the present invention, when removing the lateral side wall portion so as to provide the working opening in the lateral side wall portion, the entire lateral side wall portion is not removed at once, but is smaller than the entire lateral side wall portion. Thus, it can be taken out separately on the divided side wall portions on the feeder side and the handling chamber side, which are easy to handle.

  When the handling chamber side part is a side wall part that is more susceptible to wear due to the contact of the grain that has been scratched by the screw part than the feeder side part, the wear difference between the handling room side part and the feeder side part Regardless of this, due to the difference in wall thickness between the divided side wall portions on the feeder side and the handling chamber side, the service life of the divided side wall portions on the feeder side and the handling chamber side can be made the same or substantially the same.

  Therefore, according to the seventh aspect of the invention, in order to repair or replace the structure constituting the inlet guide path, the lateral side wall portion is divided into the divided lateral side wall portions on the feeder side and the handling chamber side, and the working portion opening is opened. Can be provided easily. In addition, regardless of the wear difference between the feeder side portion and the handling chamber side portion of the side wall portion, an advantageous replacement method of replacing the divided side wall portions on the feeder side and the handling chamber side as soon as possible is used at once. Can be adopted.

  In the eighth aspect of the invention, the wall thickness of the divided lateral wall portion located on the side of the handling chamber is set larger than the wall thickness of the divided lateral wall portion on the feeder side.

  According to the configuration of the eighth aspect of the present invention, the side wall portion of the side wall portion is a side wall portion that is more likely to be worn away by the contact of grains or the like that have been scratched by the screw portion than the feeder side portion. However, regardless of the wear difference between the handling chamber side part and the feeder side part, the service life of the divided side wall parts on the feeder side and the handling room side depends on the difference in wall thickness between the divided side wall parts on the feeder side and the handling room side. Can be the same or nearly the same.

  Therefore, according to the eighth aspect of the invention, regardless of the wear difference between the feeder side portion and the handling chamber side portion of the lateral side wall portion, the divided lateral side wall portions on the feeder side and the handling chamber side are exchanged at once after being used as much as possible. Therefore, the replacement of the side wall portion can be advantageous in terms of labor and cost.

In the ninth aspect of the present invention, the inlet guide bottom wall is configured to be divided into a divided inlet guide bottom wall located on the feeder side and a divided inlet guide bottom wall located on the handling chamber side.
In the inlet guide bottom wall body, the portion where the feeder side and handling chamber side divided inlet guide bottom wall portions are connected and the portion where the feeder side and handling chamber side divided lateral side wall portions are connected are the same or substantially the same. The entrance guide bottom wall body and the lateral side wall portion that is detachably supported are configured so as to be located at the same threshing machine longitudinal direction location.

  According to the configuration of the ninth aspect of the present invention, it is also possible to provide a work opening in the lateral side wall portion by simply removing the divided lateral side wall portion on the handling chamber side from the divided lateral side wall portions on the feeder side and the handling chamber side constituting the lateral side wall portion. The portion where the divided inlet guide bottom wall body is connected in the inlet guide bottom wall body and the portion where the divided horizontal wall portion is connected in the side wall portion are located at the same or substantially the same position in the front-rear direction of the threshing machine body. The work opening provided in the side wall portion has the same or almost the same size in the front-rear direction of the threshing machine body as the size in the front-rear direction of the threshing machine body. It becomes an opening.

  Therefore, according to the ninth aspect of the invention, the divided lateral side wall portion on the side of the handling chamber that constitutes the lateral side wall portion, such as when significant wear has occurred in the divided inlet guide bottom wall on the side of the handling chamber that constitutes the inlet guide bottom wall body. It is possible to take out the divided entrance guide bottom wall body on the side of the handling room by providing a work opening of a necessary size in the lateral side wall portion by simply removing the.

  The tenth aspect of the present invention is a receiving surface portion for receiving a fluid between a guide channel forming surface portion on the feeder side and a guide channel forming surface portion on the handling chamber side in the guide channel forming surface of the inlet guide bottom wall body. Is provided.

  According to the configuration of the tenth aspect of the present invention, even if a grain or the like that flows back from the handling chamber side to the feeder side occurs, the grain of the inlet guiding bottom wall body is received by the receiving surface portion. Can be stopped on the way in the hauling method.

  Therefore, according to the tenth aspect of the present invention, even if a reverse flow of the grain or the like in the entrance guide bottom wall occurs, it does not become a great resistance to the scraping transfer of the harvested cereal toward the handling room, The harvested cereal from the feeder can be smoothly transferred to the handling room.

It is a side view which shows the whole combine. It is a top view which shows the whole combine. It is a side view which shows a threshing apparatus. It is a vertical side view which shows a threshing apparatus. It is a side view which shows a handling cylinder. FIG. 6 is a sectional view taken along the line VI-VI in FIG. 5. It is a left view which shows the threshing machine body front part of the state which closed the work opening of the left side wall. It is a left view which shows the threshing machine body front part of the state which opened the work opening of the left side wall. It is a right view which shows the threshing machine body front part of the state which closed the work opening of the right side wall. It is a front view which shows a cereal introduction part. It is a vertical side view which shows an entrance guide bottom wall body. It is a perspective view which shows the entrance guide bottom wall body in the division | segmentation state, the left side wall part on the left side, and the right side. It is a rear view which shows a grain collection | recovery part.

Hereinafter, the case where the combiner is equipped with the threshing apparatus according to the present invention will be described with reference to the drawings.
FIG. 1 is a side view showing the entire combine. FIG. 2 is a plan view showing the entire combine. As shown in FIGS. 1 and 2, the combine has a boarding type driving unit 1 equipped with a driving seat 1 a, an engine 3 provided in a driving unit located below the driving seat 1 a, and a pair of left and right crawlers A traveling machine body configured to be driven by the driving force from the engine 3 and to be self-propelled is provided. In the rear part of the machine body frame 4 of the traveling machine body, a threshing device 5 and a grain collection unit 6 disposed on the lateral side of the threshing device 5 are provided. A feeder 11 extending forward from the front of the threshing device 5, a pretreatment frame 12 having a rear end connected to a front end of a feeder house 11a constituting the feeder 11, and a pretreatment frame 12 are provided so as to be freely driven. A clipper type trimming device 13 is provided to constitute the trimming unit 10.

The mowing unit 10 will be described.
As shown in FIGS. 1 and 2, the mowing unit 10 swings the feeder 11 around the fuselage lateral axis of the feeder drive shaft 11b located at the conveyance end portion by the elevating cylinder 14 so that the preprocessing frame 12 is moved. The pair of left and right dividers 15, 15 provided at the front end of the lower and upper parts of the left and right dividers 15, 15 are moved up and down to a lower working state and the pair of left and right dividers 15, 15 are moved up and down from the ground.

  The mowing unit 10 moves the traveling machine body in the descending work state, and thereby plantes the tip of the planted cereal such as rice and wheat while scraping it to the lateral feed auger 17 by a rotating reel 16 that can be driven and rotated. The root of the cereal is harvested by the reaping device 13, and the reaped cereal is laterally fed to the vicinity of the feeder 11 by the left and right spiral plates 17 a of the laterally-feed auger 17, and the laterally-feed auger 17 is provided so as to be freely rotatable. The harvested cereal grains that have been scraped and fed from the lateral feed auger 17 into the front end of the feeder house 11a by the arm 18 are conveyed by the feeder conveyor 11c constituting the feeder 11 over the entire length from the stock to the tip of the feeder house 11a. It is thrown into the threshing device 5 from a feeder outlet 11d (see FIG. 4) which is open and located rearward at the conveying terminal end.

The threshing apparatus 5 will be described.
FIG. 3 is a side view showing the threshing device 5. FIG. 4 is a longitudinal side view showing the threshing device 5. As shown in FIGS. 3 and 4, a front wall 21 having a cereal inlet 21a communicating with a feeder outlet 11d, a rear wall 22 having a dust outlet 22a, and a pair of left and right from the front wall 21 to the rear wall 22 The threshing machine body 20 of the threshing device 5 is configured by including the horizontal side walls 23 and 24 and the treatment room top plate 25.

  The threshing device 5 is disposed below the handling cylinder 29, a handling chamber 28 provided in the upper part of the threshing machine 20, a handling cylinder 29 provided in the handling chamber 28 so as to be driven and rotated around a handling cylinder axis P facing the front and rear of the machine. A threshing portion A configured with the receiving net 30, a swing sorting device 31 provided below the handling chamber 28 so as to be able to drive and swing, and a Kara 32 provided below the front end of the swing sorting device 31. The sorting section B is provided. A first screw conveyor 33 is provided below the front end side of the swing sorting device 31 inside the threshing machine body 20, and a second screw conveyor 34 is provided below the rear end side of the swing sorting device 31.

  A screw portion 36 provided on the front end side of the handling drum 29 so as to be integrally rotatable is disposed between the front wall 21 and the handling chamber 28 inside the threshing machine body 20, and an inlet guide path 37 provided below the screw portion 36. And the cereal introduction part C is configured. This cereal introduction part C introduces the harvested cereal from the feeder 11 into the handling chamber 28.

  In other words, the entrance guide path 37 is provided across the cereal inlet 21 a of the front wall 21 and the inlet 28 a of the handling chamber 28, and from the root of the harvested cereal cocoon introduced into the cereal inlet 21 a by the feeder 11. The whole of the tip is guided to flow into the entrance 28a of the handling chamber 28. The screw portion 36 is formed in a tapered shape having an outer diameter that decreases toward the front end side, and the rear end side is connected to a front support plate 40 that constitutes the handling cylinder 29, and an outer peripheral surface of the rotary drum 36a. Two scraping spiral plates 36b that are rotatably provided are configured, and the harvested cereals thrown into the inlet guide path 37 are transferred to the rear side and fed into the handling chamber 28 from the inlet 28a.

  Therefore, the threshing device 5 is transmitted to the barrel driving pulley 42 that is rotatably provided integrally with the rotation support shaft 41 of the barrel 29 that protrudes outside the threshing machine body, so that the barrel 29 rotates in the rotation direction F (FIG. 10). The whole of the harvested cereal that has been introduced into the cereal inlet 21a by the feeder 11 from the root to the tip of the cereal is introduced by the scraping spiral plate 36b of the screw part 36 in the cereal introduction part C. It is introduced into the handling chamber 28 by the transfer and guidance by the entrance guide path 37, and the threshing process is performed by the handling cylinder 29 and the receiving net 30 that rotate the harvested cereal culm introduced into the handling room 28, and the threshed grains are received from the receiving net 30. It drops, and waste waste etc. are sent out to the dust discharge port 22a from the dust feed port 28b located in the rear-end part of the handling chamber 28, and are discharged | emitted out of a threshing machine body.

The threshing device 5 sorts the threshing grains and dust dropped from the receiving net 30 by the sorting unit B.
That is, the threshing grains and dust that have fallen from the receiving net 30 are received by the swing sorting device 31, the swing sorting by the swing sorting device 31, and the rearward sorting that the Kara 32 supplies to the swing sorting device 31. Sorting into threshing grains and dust by sorting by wind, dropping the first processed product of the threshing grains onto No. 1 screw conveyor 33, dropping the second processed product onto No. 2 screw conveyor 34, and sorting out dust It is transferred to the dust outlet 22a together with the wind and discharged out of the threshing machine.

  The first screw conveyor 33 conveys the supplied first processed product to the grain collection unit 6. The second screw conveyor 34 conveys the supplied second processed material toward a reducing port (not shown) provided on the right side wall 24.

The handling cylinder 29 will be described.
FIG. 5 is a side view showing the handling cylinder 29. 6 is a sectional view taken along the line VI-VI in FIG. As shown in FIGS. 4, 5, and 6, the handling cylinder 29 includes a rotation support shaft 41 and a rotation support shaft 41 that are supported on the front wall 21 and the rear wall 22 of the threshing machine body 20 so as to be rotatable around the handling cylinder axis P. The front support plate 40, the middle support plate 43 and the rear support plate 44, which are provided so as to be rotatable integrally with the front support plate 40, and the front support plate 40, the middle support plate 43 and the rear support plate 44 which are distributed at equal intervals in the circumferential direction of the handling cylinder 29. And six bar teeth supporting rods 45, 46 connected to each other, and bar-shaped teeth teeth 47, 48 projecting to the outer peripheral side of the barrel from a plurality of portions arranged in the axial direction of the tooth supporting rods 45, 46. It is. That is, the handling cylinder 29 is intended for threshing the harvested cereals introduced into the handling chamber 28 from the stock to the tip, while the stem pallets etc. are placed between the tooth handling support slags 45 and 46. By entering the inside, it is bar-shaped so that the threshing treatment is performed while reducing the threshing load.

  Of the six tooth support rods 45, 46, the tooth handle arrangement pitch 46a of the three tooth support rods 46 is set to be larger than the tooth arrangement pitch 45a of the other three tooth support rods 45. It is. The size of the large tooth treatment arrangement pitch 46a is set to be twice or almost twice the size of the small tooth treatment arrangement pitch 45a. The tooth treatment support rods 46 having a large tooth treatment arrangement pitch 46a and the tooth treatment support rods 45 having a small tooth treatment arrangement pitch 45a are arranged alternately in the circumferential direction of the treatment drum, and are adjacent to each other. An arrangement in which one tooth support rod 45 is positioned between the tooth support rods 46 and 46 and one tooth support rod 46 is positioned between a pair of adjacent tooth support rods 45 and 45. Are lined up. In the tooth handling support rod 46 having a large tooth handling arrangement pitch 46a, the interval D between the tooth handling 47a located closest to the front end of the handling cylinder and the rear end of the rotary drum 36a of the screw portion 36 is the same as the tooth handling arrangement pitch 46a. The teeth 47a are arranged in a state where the intervals are substantially the same. In the tooth handling support rod 45 having a small tooth handling arrangement pitch 45a, the distance D between the tooth handling 47a located closest to the front end of the handling cylinder and the rear end of the rotary drum 36a is wider than the tooth handling arrangement pitch 45a. Teeth 47 are provided. As shown in FIG. 6, in the tooth handling support rod 46 having a large tooth handling arrangement pitch 46a, only the tooth handling 48 located closest to the rear end of the handling cylinder is provided with a receding angle R.

The cereal introduction part C will be described.
FIG. 7 is a left side view showing the culm introduction part C. FIG. FIG. 10 is a front view showing the grain introduction part C. FIG. As shown in FIGS. 4, 7, and 10, the inlet guide path 37 constituting the cereal introduction part C includes an inlet guide bottom wall body 50 provided below the screw part 36 inside the threshing machine body 20, and the threshing machine body 20. Of the left side wall 23 of the left side wall of the inlet guide bottom wall body 50 and the side wall side 60 of the right side wall 24 of the threshing machine body 20 sideways of the inlet guide bottom wall body 50. It is comprised by the side wall part 70 located in this.

  FIG. 11 is a longitudinal side view showing the entrance guide bottom wall body 50. As shown in FIGS. 4, 10, and 11, the entrance guide bottom wall body 50 has a straight shape in which the shape of the front end edge 51 desired for the cereal inlet 21 a of the threshing machine body 20 extends along the lateral direction of the threshing machine body, The rear end edge 52 desired for the inlet 28a provided in the wall 28F is formed by a plate-like body formed so as to have an arc shape along the outer periphery of the handling cylinder 29. The inlet guide bottom wall body 50 is arranged in an inclined posture with a higher arrangement height toward the handling chamber side, and the guide flow path forming surface 53 of the inlet guide bottom wall body 50 is positioned at a higher arrangement height toward the handling chamber side. After that, it has a rising slope. Of the guide channel forming surface 53, the guide channel forming surface portion 53a on the feeder side is formed on a flat surface with a rearwardly rising slope located at a higher arrangement height toward the handling chamber side. Of the guide channel forming surface 53, the guide channel forming surface portion 53b on the side of the handling chamber has a rearwardly rising slope located at a higher arrangement height on the side of the handling chamber, and the portions 53c on both sides in the lateral direction of the threshing machine body ( 12), a curved surface is formed on the lower surface side as a non-flat surface in a protruding curved state.

  The inlet guide bottom wall body 50 includes a receiving surface portion 54 provided between a feeder-side guide channel forming surface portion 53a and a handling chamber-side guide channel forming surface portion 53b. The receiving surface portion 54 is formed on a flat surface that is horizontal or substantially horizontal, and the grains and straw scraps that flow backward from the handling chamber side to the feeder side through the inlet guide path 37 reach the guide flow path forming surface portion 53a on the feeder side. It is configured so as not to catch it.

  FIG. 12 is a perspective view showing the inlet guide bottom wall body 50 and the left and right side wall portions 60 and 70 in a divided state. As shown in FIGS. 10, 11, and 12, the inlet guide bottom wall body 50 includes a feeder-side divided inlet guide bottom wall body 50 </ b> A having a feeder-side guide flow path forming surface portion 53 a and a receiving surface portion 54, and a handling chamber. It is configured such that it can be divided into a handling chamber side divided inlet guide bottom wall body 50B provided with a side guide flow path forming surface portion 53b. The rear end portion of the division entrance guide bottom wall body 50B on the side of the handling chamber overlaps with the upper surface side of the curved receiving flange 28e as viewed from the front and protrudes from the front side of the front wall 28F of the handling chamber. It is comprised so that it may be received and supported by. On the front end side of the feeder-side divided inlet guide bottom wall body 50A, a connecting portion 55 for detachably supporting the inlet guide bottom wall body 50 on the inner surface side of the front wall 21 of the threshing machine body 20 is provided. Connecting the inlet guide bottom wall body 50 to the inner surface side of the left side wall portion 60 on the left side of the threshing machine body 20 so as to be detachable on the left lateral end side of the divided inlet guide bottom wall bodies 50A and 50B on the feeder side and the handling room side. Are provided on the right lateral end side of the divided inlet guide bottom wall bodies 50 </ b> A and 50 </ b> B on the feeder side and the handling room side, and the inner side of the right side wall part 70 on the right side of the threshing machine body 20. Are provided with connecting portions 58 and 59 for detachable support. Each connection part 55,56,57,58,59 is comprised by the bending edge part of the plate body which comprises division | segmentation entrance guide bottom wall body 50A, 50B.

  The left side wall portion 60 is configured to be freely divided into a feeder side divided side wall portion 60A located on the feeder side and a pair of upper and lower divided side wall portions 60B and 60C located on the handling chamber side. Front end side and upper end side of the divided side wall portion 60A on the feeder side, upper end side and rear end side of the upper divided side wall portion 60B on the handling chamber side, and rear end side of the lower divided side wall portion 60C on the handling chamber side Further, connecting portions 61, 62, 63, 64, and 65 are provided for detachably supporting the lateral side wall portion 60 on the left lateral side wall 23. Connecting portions 66, 67 for connecting the divided lateral side wall portions 60A, 60B, 60C to the rear end side of the divided lateral side wall portion 60A on the feeder side and the front end side of the pair of upper and lower divided lateral side wall portions 60B, 60C on the handling chamber side. , 68 are configured. Each connection part 61-68 is comprised by the bending edge part of the board which comprises the division | segmentation horizontal side wall part 60A, 60B, 60C.

  The right side wall portion 70 on the right side can be divided into a divided side wall portion 70A on the feeder side located on the feeder side and a divided side wall portion 70B located on the handling chamber side. A connection for detachably supporting the lateral side wall 70 on the left lateral side wall 24 on the front end side and upper end side of the divided lateral side wall portion 70A on the feeder side, and on the upper end side and rear end side of the divided lateral side wall portion 70B on the handling chamber side. Portions 71, 72, 73 and 74 are provided. Connecting portions 75 and 76 for connecting the divided horizontal side wall portions 70A and 70B are provided on the rear end side of the divided horizontal side wall portion 70A on the feeder side and on the front end side of the divided horizontal side wall portion 70B on the handling chamber side. Each connection part 71-76 is comprised by the bending edge part of the board which comprises the division | segmentation horizontal side wall part 70A, 70B.

  That is, the side wall 60 in the left side wall 23 on the left side of the threshing machine body 20 is detachable so as to open and close the work opening 23A provided on the left side wall 23 on the side of the entrance guide bottom wall 50. It is configured to be supported.

  Specifically, as shown in FIGS. 7 and 10, the feeder side divided side wall portion 60A constituting the left side wall portion 60 and the pair of upper and lower divided side wall portions 60B and 60C on the handling chamber side are provided with a work opening 23A. The connecting portion 61 on the front end side in the divided lateral side wall portion 60A on the feeder side is connected to the front wall 21 of the threshing machine body 20 by a connecting bolt attached to the bolt hole 61a provided on this, and the divided lateral side wall on the feeder side The upper side connecting portions 62, 63 of the upper side portion 60A on the side 60A and the handling chamber side are connected to the left side wall 23 on the left side of the threshing machine body 20 by connecting bolts attached to the bolt holes 62a, 63a. The upper part 23U located on the upper side of the work opening 23A is connected to the upper end part 23U, and the rear end side connection parts 64 and 65 of the pair of upper and lower divided lateral side wall parts 60B and 60C on the handling chamber side are provided on the bolts provided thereto. Hole 64a, the connecting bolt attached to the bolt hole 28c formed in the 65a and threshing chamber front wall 28F is connected to the threshing chamber front wall 28F. The bolt holes 66a, 67a are connected to the connecting portion 66 on the rear end side of the divided side wall portion 60A on the feeder side and the connecting portions 67, 68 on the front end side of the pair of upper and lower divided side wall portions 60B, 60C on the handling chamber side. , 68a by connecting bolts attached thereto, the left side wall 60 can be supported by the side wall 23 and the working opening 23A of the left side wall 23 can be closed.

  The side wall portion 70A of the right side wall 24 of the threshing machine body 20 is detachably supported so as to open and close the work opening 24A provided on the right side wall 24 and disposed laterally of the inlet guide bottom wall body 50. It is constituted as follows.

  Specifically, as shown in FIGS. 9 and 10, the feeder side divided side wall 70 </ b> A and the handling side divided horizontal side wall 70 </ b> B constituting the right side wall 70 are fitted into the work opening 24 </ b> A, and the feeder side The connecting portion 71 on the front end side of the divided horizontal side wall portion 70A is connected to the front wall 21 of the threshing machine body 20 by a connecting bolt attached to a bolt hole 71a provided in this, and the divided side wall portion on the feeder side and the handling chamber side is connected. The upper ends of the connecting portions 72 and 73 at the upper ends of 70A and 70B are positioned above the work opening 24A in the right side wall 24 of the threshing machine body 20 by connecting bolts attached to the bolt holes 72a and 73a provided therein. The connecting portion 74 on the rear end side of the divided lateral side wall portion 70B on the handling chamber side is attached to the bolt hole 74a provided on the portion 24U and the bolt hole 28d provided on the front wall 28F on the handling chamber. By forming a bolt connecting the threshing chamber front wall 28F. The connecting portion 75 on the rear end side in the divided horizontal side wall portion 70A on the feeder side and the connecting portion 76 on the front end side in the divided horizontal side wall portion 70B on the handling chamber side are connected to these bolt holes 75a and 76a by connecting bolts attached. By doing so, the right side wall portion 70 can be supported by the side wall 24 and the work opening 24A of the right side wall 24 can be closed.

The inlet guide bottom wall body 50 is configured to be detachably supported inside the threshing machine body 20.
Specifically, as shown in FIGS. 8 and 10, the connecting portion 55 on the front end side of the feeder-side divided inlet guide bottom wall body 50 </ b> A is connected to a bolt hole 55 a provided in the threshing machine body 20. Connected to the front wall 21, the connecting portion 56 on the left end side of the feeder-side divided inlet guide bottom wall body 50 </ b> A is provided in the bolt hole 56 a provided therein and the divided lateral wall portion 60 </ b> A provided on the left feeder side. 23a is connected to the left side feeder side split side wall portion 60A by a connecting bolt attached to the left side feeder side, and the feeder side split inlet guide bottom wall body 50A is connected to the right end side connecting portion 58 of the bolt hole 58a provided on the right side and the right side. It connects with the division | segmentation side wall part 70A by the side of a feeder with the connection bolt with which the bolt hole 70a provided in the division | segmentation side wall part 70A of the feeder side is provided. The connecting portion 57 on the left end side of the split entrance guide bottom wall body 50B on the side of the handling chamber is connected to the bolt hole 57a provided on this and the bolt hole 60a provided on the split side wall portion 60C on the lower side of the handling chamber side. It is connected to the lower divided side wall portion 60C on the lower side of the handling chamber by bolts, and the connecting portion 59 on the right end side of the divided inlet guide bottom wall body 50B on the handling chamber side is connected to the bolt hole 59a provided in this and the right handling chamber. The inlet guide bottom wall 50 is screwed inside the threshing machine body 20 by being connected to the right side handling room side divided side wall 70B by a connecting bolt attached to the bolt hole 70b provided in the side divided side wall 70B. It can be attached to the lower part of the portion 36.

  As shown in FIGS. 7 and 9, in the state where the inlet guide bottom wall body 50 is mounted and the work openings 23A, 24A of the left and right side walls 23, 24 are closed, the feeder side of the inlet guide bottom wall body 50 and A portion 50R where the split inlet guide bottom wall bodies 50A, 50B on the handling room side are connected, a portion 60R where the feeder side and the split side wall portions 60A, 60B, 60C on the left side wall portion 60 are connected, The part 70R where the feeder side and handling side split side wall parts 70A and 70B of the right side wall part 70 on the right side are connected is located at the same or substantially the same position in the front-rear direction of the threshing machine body.

  FIG. 8 is a side view of the left side wall 23 with the work opening 23A opened. As shown in FIG. 8, by removing the feeder side divided side wall portion 60 </ b> A and the pair of upper and lower handling chamber side divided side wall portions 60 </ b> B and 60 </ b> C in the left side wall portion 60, 23A opens over the whole, and the inlet guide bottom wall body 50 can be taken out from this working opening 23A.

  A side cover 80 (see FIGS. 1 and 2) covering the lateral outer side of the left lateral wall 23 is supported by the threshing machine body 20 so as to be swingable openable and closable around an opening / closing axis Q that is located on the rear end side. . A portion of the left side wall 23 corresponding to the left chamber wall 23B is connected to the inner surface side of the side cover 80 so as to swing and open integrally with the side cover 80 around the opening / closing axis Q. Therefore, when opening / closing the working opening 23A of the left lateral wall 23, the left lateral wall portion 60 is detached with the side cover 80 opened. At this time, the left chamber wall 23B is opened together with the side cover 80, and the chamber 28 is opened.

  Although not shown, by removing the feeder side and handling chamber side divided side wall portions 70A and 70B in the right side wall portion 70, the work opening 24A of the right side wall 24 is opened over the whole.

  In the entrance guide bottom wall body 50 and the left and right lateral wall portions 60 and 70 constituting the entrance guide path 37, the screw portion 36 is used in a portion located on the handling chamber side rather than a portion located on the feeder side. Wear due to the contact of the grain subjected to the scraping action is likely to occur. In the lateral side wall portions 60 and 70 constituting the entrance guide path 37, the lateral side wall portion (the lateral side of the lateral side wall 23 on the left side is located on the upper side in the rotational direction of the lower end portion of the handling cylinder with respect to the entrance guide bottom wall body 50. Wear due to abutment of grains or the like subjected to a scraping action by the screw portion 36 on a lateral side wall portion 70 (lateral side wall portion in the right side wall 24 on the right side) 70 positioned on the lower side in the rotational direction than the side wall portion 60 Is likely to occur.

  Therefore, the wall thickness 50Bt of the divided inlet guide bottom wall body 50B on the handling chamber side constituting the handling chamber side portion of the inlet guide bottom wall body 50 is set to the wall thickness 50Bt of the feeder side divided inlet guide bottom wall body 50A constituting the feeder side portion. The wall thickness is set to be larger than 50 At. The wall thickness 70Bt of the split side wall portion 70B on the side of the handling chamber that constitutes the handling side portion of the right side wall portion 70 is made larger than the wall thickness 70At of the split side wall portion 70A on the feeder side that constitutes the feeder side portion. It is set. The wall thickness 70Bt of the divided lateral side wall portion 70B on the right side side wall portion 70 located on the lower side in the rotational direction of the lower end portion of the handling cylinder with respect to the entrance guide bottom wall body 50 is defined as the entrance guide bottom wall body 70A. On the other hand, the wall thickness 60At, 60Bt, 60Ct of the feeder side and handling chamber side divided side wall portions 60A, 60B, 60C in the left side wall portion 60 located on the upper side in the rotational direction at the lower end of the handling cylinder is set. It is. The wall thicknesses 60At, 60Bt, and 60Ct of the feeder side and handling chamber side divided side wall portions 60A, 60B, and 60C in the left side wall portion 60 are set to be the same or substantially the same.

  That is, the wear difference generated between the feeder-side portion and the handling chamber-side portion of the inlet guide bottom wall body 50 and the left and right lateral side wall portions 60, 70, the rotation direction of the lower end of the handling cylinder with respect to the inlet guide bottom wall body 50 Regardless of the wear difference generated between the lateral side walls 23 and 24 located separately on the upper side and the lower side, by setting the wall thickness difference, the divided inlet guide bottom wall bodies 50A and 50B on the feeder side and the handling chamber side are provided. Use limit due to wear, wear limit on feeder side and handling chamber side divided side wall portions 60A, 70A, 60B, 70B, wear side lower end rotation direction upper side and lower side side wall portions 60, 70 wear The use limit by is generated at the same or almost the same timing.

  When wear of the entrance guide bottom wall body 50 and the left and right lateral side wall portions 60, 70 occurs at an earlier stage than the feeder side part, the lower side in the rotational direction of the lower end of the handling cylinder with respect to the inlet guide bottom wall body 50 When the wear of the lateral side wall portion 70 located on the upper side occurs earlier than the lateral side wall portion 60 located on the upper side, the feeder side divided inlet guide bottom wall body 50A constituting the feeder side portion of the inlet guide bottom wall body 50 is changed. The feeder side constituting the feeder side portion of the right side wall portion 70 is configured such that only the division entrance guide bottom wall body 50B on the side of the handling chamber constituting the handling chamber side portion can be removed and replaced while being attached. It is constructed so that only the divided horizontal side wall portion 70B on the side of the handling chamber can be removed and replaced while the divided horizontal side wall portion 70A is attached, and the horizontal side wall portion 60 located on the upper side in the rotational direction of the lower end of the handling cylinder is attached. While leaving Remove only lateral side wall portion 70 located on the hand side are configured to be replaced.

A drive structure of the feeder 11 will be described.
As shown in FIGS. 3 and 7, the driving force of the rotatable blade support shaft 32 a of the tang 32 is transmitted to the feeder drive shaft 11 b by the transmission belt 83.

  The distance from the outer peripheral portion of the input pulley 85 provided with the tension ring body 84 that imparts transmission tension to the transmission belt 83 so as to be integrally rotatable with the feeder drive shaft 11b to the portion closest to the blade support shaft 32a, The transmission belt 83 is pressed against the transmission belt 83 at an arrangement position that is larger than the distance to the outer peripheral portion closest to the feeder drive shaft 11b in the outer peripheral portion of the output pulley 86 provided to be integrally rotatable with the blade support shaft 32a. Is deployed. That is, if the transmission belt 83 is pressed by the tension ring body 84, the transmission belt 83 is bent, but the length of the transmission belt 83 wound around and in contact with the output pulley 86 is prevented from becoming longer than necessary. However, the transmission belt 83 is configured to bend.

  A support base 87b of the belt receiver 87, which is provided with a belt receiver main body 87a formed in a U shape so as to surround the output pulley 86 and a support base 87b for supporting the belt receiver main body 87a, is connected to a support member 88. .

  The support member 88 is attached to the left side wall 23 of the threshing machine body 20 in a state in which the blade support shaft 32a of the tang 32 is rotatably supported. In addition to the function of supporting the blade support shaft 32a, the belt A function of supporting the receiving body 87 is provided. When the transmission belt 83 is switched to the relaxed state by the swinging operation of the tension ring body 84 constituting the belt tension clutch to the cutting side, the belt receiver 87 is connected to the output pulley 86 by the belt receiver body 87a. It is configured to receive and support around and prevent the transmission belt 83 from contacting and rotating with the output pulley 86.

The grain collection unit 6 will be described.
FIG. 13 is a rear view showing the grain collection unit 6. As shown in FIG.2 and FIG.13, the grain collection | recovery part 6 comprised so that the threshing grain carried out by the 1st screw conveyor 33 from the threshing apparatus 5 might be thrown in by the threshing apparatus 90 (refer FIG. 2). A hopper-shaped bag filling tank 91, a bag receiving basket 92 provided on the front and rear sides of the discharge cylinder 91 a included in the bag filling tank 91, and a bag receiving deck 93 provided below the bag filling tank 91 and provided on the upper side of the machine body frame 4. The operator boarding deck 94 is arranged so as to be positioned on the lateral outer side of the bag receiving deck 93.

  The bag filling tank 91 is supported by a support structure 95 provided on the front and rear sides of the bag filling tank 91. The front and rear support structures 95 are composed of a pair of left and right support members 96, 96 erected on the machine body frame 4, a connection frame 97 that connects the upper ends of the pair of left and right support members 96, 96, and A vertical plate-like support member 98 that protrudes upward from the bag 97 and supports the bagging tank 91 on the upper end side is provided. The machine body inner side edge part of the connection rod 97 is connected with the threshing machine body 20. The connecting rod 97 and the column member 96 on the outer side of the fuselage are configured by a single steel pipe that is bent in the longitudinal direction so that one end side becomes the column member 96 and the other end side becomes the connecting rod 97. .

[Another Example]
(1) In the above-described embodiment, the left and right lateral side wall portions 60 and 70 are configured to be detachably supported. However, only one of the left and right lateral side wall portions or the entrance is shown. Only the lateral side wall located on the lower side in the rotational direction of the lower end of the handling cylinder with respect to the guide bottom wall 50 may be configured to be detachably supported.

(2) In the above-described embodiment, the inlet guide bottom wall 50, the left and right side wall portions 60, 70 are divided into the feeder side divided inlet guide bottom wall body 50A, the divided side wall portions 60A, 70A and the handling chamber side. Although an example in which the divided entrance guide bottom wall body 50B and the divided lateral side wall portions 60B, 60C, and 70B are configured to be freely divided has been shown, the configuration may be implemented in a non-divided shape.

(3) In the above-described embodiment, the wall thickness 50Bt of the divided inlet guide bottom wall body 50B on the handling chamber side is set larger than the wall thickness 50At of the divided inlet guide bottom wall body 50A on the feeder side, and the right side of the handling chamber side The wall thickness 70Bt of the divided horizontal side wall 70B is set larger than the wall thickness 70At of the divided horizontal side wall 70A on the feeder side, and the wall thickness 70Bt of the right divided horizontal side wall 70B is set to the wall of the left divided horizontal side wall 60B. Although an example in which the thickness is set to be greater than 60 Bt has been described, the present invention may be implemented with a configuration not including these wall thickness differences.

(4) In the above-described embodiment, the feeder side divided side wall in the right side wall 70 as the side wall located on the lower side in the rotational direction of the lower end of the barrel relative to the inlet guide bottom wall 50 The wall thickness 70Bt of only the split side wall portion 70B on the handling chamber side of the portion 70A and the split side wall portion 70B on the handling chamber side is positioned on the upper side in the rotational direction of the lower end portion of the handling cylinder with respect to the inlet guide bottom wall body 50. Although the example which set larger than wall thickness 60At, 60Bt, 60Ct of the left side wall part 60 as a side wall part to perform is shown, the feeder side and the handling room side divided side wall parts 70A, 70B on the right side are shown. The wall thickness may be set larger than the wall thickness 60t of the lateral side wall 60 on the left side.

(5) In the above-described embodiment, the example in which the divided horizontal side wall on the left side wall 60 on the side of the handling room is configured to be freely divided into a pair of upper and lower divided side wall parts 60B and 60C has been shown. The divided lateral side wall portion may be configured as a non-divided type.

  INDUSTRIAL APPLICABILITY The present invention can be used for a threshing apparatus provided with a screw-type handling cylinder having a spiral plate-like tooth handling as well as a threshing apparatus provided with a bar-type handling cylinder.

DESCRIPTION OF SYMBOLS 11 Feeder 20 Threshing machine body 23 Left side wall 24 Right side wall 28 Handling chamber 29 Handling cylinder 36 Screw part 37 Inlet guide path 50 Inlet guide bottom wall body 50A Feeder side division inlet guide bottom wall body 50At Wall thickness 50B Handling chamber Side split inlet guide bottom wall body 50Bt Wall thickness 50R Site 53 Guide channel forming surface 53a Feeder side guide channel forming surface portion 53b Handling chamber side guide channel forming surface portion 53c Receiving surface portion 60 Left side wall portion 60A Feeder Side lateral wall portion 60B, 60C Side lateral wall portion 60R part on the side of the handling room 70 Side wall side part 70A on the right side Side wall part 70A on the feeder side 70At Wall thickness 70B Side wall part 70B on the side of the handling room 70Bt Wall thickness 70R part

Claims (10)

A threshing device configured to scrape a harvested cereal from a feeder into a handling chamber by a screw part provided on the front end side of the handling cylinder so as to be integrally rotatable,
An inlet guide bottom wall provided in an inclined posture having a higher arrangement height toward the handling chamber side below the screw portion inside the threshing machine body, and a side of the inlet guide bottom wall body among the left side walls of the threshing machine body The handling cereal from the feeder is handled by a lateral side wall portion located on the side and a lateral side wall portion located on the lateral side of the inlet guide bottom wall body among the right side walls of the threshing machine body. Configure the entrance guide route to guide the flow to the chamber,
The inlet guide bottom wall body is configured to be detachably supported,
A threshing apparatus configured to be detachably supported on at least one of the left side wall portion and the right side wall portion.   Of the left side wall portion on the left side and the right side wall portion on the right side, the side wall portion located on the lower side in the rotational direction of the lower end of the handling cylinder with respect to the inlet guide bottom wall body is detachably supported. The threshing apparatus according to claim 1 configured as described above.   The threshing apparatus according to claim 1, wherein the left side wall part and the right side wall part are detachably supported.   Of the left side wall portion and the right side wall portion, the wall thickness of the side wall portion located on the lower side in the rotational direction of the lower end portion of the handling cylinder with respect to the inlet guide bottom wall body is set to the left side. The wall thickness of the side wall portion located on the upper side in the rotational direction of the lower end portion of the handling cylinder with respect to the inlet guide bottom wall body of the side wall portion and the right side wall portion of The threshing device according to claim 3.   The said entrance guide bottom wall body is comprised so that division | segmentation into the division | segmentation entrance guide bottom wall body located in the feeder side and the division | segmentation entrance guide bottom wall body located in the handling chamber side is possible. The threshing device according to item.   6. The threshing apparatus according to claim 5, wherein the wall thickness of the divided inlet guide bottom wall body located on the side of the handling chamber is set larger than the wall thickness of the divided inlet guide bottom wall body located on the feeder side.   The said side wall part supported so that attachment or detachment is possible is comprised so that division | segmentation into the division | segmentation side wall part located in the feeder side and the division | segmentation side wall part located in the handling chamber side is possible. The threshing device according to item.   The threshing apparatus according to claim 7, wherein the wall thickness of the divided lateral wall portion located on the side of the handling chamber is set to be larger than the wall thickness of the divided lateral wall portion on the feeder side. The inlet guide bottom wall body is configured to be freely divided into a divided inlet guide bottom wall body located on the feeder side and a divided inlet guide bottom wall body located on the handling chamber side,
In the inlet guide bottom wall body, the portion where the feeder side and handling chamber side divided inlet guide bottom wall portions are connected and the portion where the feeder side and handling chamber side divided lateral side wall portions are connected are the same or substantially the same. The threshing apparatus according to claim 7 or 8, wherein the inlet guide bottom wall body and the lateral side wall portion detachably supported are configured so as to be located at the same position in the front-rear direction of the threshing machine body.   A receiving surface portion for receiving a fluid is provided between a guide channel forming surface portion on a feeder side and a guide channel forming surface portion on a handling chamber side in a guide channel forming surface of the inlet guide bottom wall body. Threshing apparatus as described in any one of 1-9.

Images