JP2017158479A - Combine-harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine-harvester capable of flowing the threshed product positioned on the front side of a thresher toward the back of a handling chamber by a dust sending valve, while suppressing the grain loss of the grains to be discharged to the outside of the thresher, irrespective of the quantity of the grains.SOLUTION: A top board 27 of a handling chamber 20 is equipped with a plurality of dust sending valves 50A, 50B and 50C supported in a direction along the revolving shaft axis P2 of a handling drum 21 for sending and guiding the grains toward the back of the handling chamber 20. The lower ends of the dust sensing valves 50A and 50B positioned on the front side of a thresher 7 are positioned closer to the rotation locus of the periphery of the handling drum 21 than the lower ends of the dust sending valve 50C positioned on the rear side of the thresher 7.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a combine equipped with a feeder that conveys a harvested cereal meal and a threshing device that receives the harvested grain meal from the feeder and handles and processes the introduced harvested grain meal.

  Conventionally, in the above combine, for example, as shown in Patent Document 1, for example, a threshing apparatus is provided with a handling cylinder that is rotatably driven in a handling chamber, and a top plate of the handling chamber is provided with a rotational axis of the handling cylinder. And a plurality of dust-feeding valves that are supported in a state of being aligned in a direction along the direction and feed and guide the cereals toward the rear of the handling chamber. In this type of combine, turning power is applied to the threshing processed material located in the handling chamber by the handling cylinder, and the dust feeding valve guides the threshing processed material to which the turning power is applied. It makes it easy to flow backward.

Japanese Patent Laying-Open No. 2015-62427

When the conventional technology is employed and the dust delivery valve is provided, the following problems may occur.
On the front side of the threshing device, a large amount of threshing processed material is located because the elapsed time after the threshing processed product is input is short or the elapsed time after the threshing processed material starts to receive the handling processing is short. It tends to be. Moreover, when the space | interval of a handling cylinder and a top plate is expanded so that a large amount of cereals can be put into a threshing apparatus collectively, a large amount of threshing processed material is located between a handling cylinder and a top plate. The lower end of the dust feed valve located on the front side of the threshing device is the rotational trajectory of the outer periphery of the barrel so that the dust feed valve acts properly on the threshing product even when a large amount of the threshing product is located. When configured to be located near, the lower end of the dust feeding valve located on the rear side of the threshing device is also the same as the lower end of the dust feeding valve located on the front side of the threshing device. Located near. Then, the grain located in a single grain state on the rear side of the threshing device is likely to receive a guiding action by the dust feeding valve, and the grain is easily discharged to the outside of the threshing device.

  The present invention guides the threshing processed product to the rear of the handling chamber by the dust feed valve, and is positioned on the front side of the threshing device while suppressing the grain loss that the grain is discharged out of the threshing device. Provided is a combine that can smoothly flow toward the rear of the handling room regardless of the amount of processed threshing.

The combine according to the present invention is:
A feeder for transporting the harvested cereal meal;
A threshing device for handling the harvested cereal meal from the feeder, and handling the treated harvested cereal meal;
The threshing device is supported by a handling cylinder that is rotatably driven in the handling chamber, and is supported by the top plate of the handling chamber in a state of being aligned in a direction along the rotation axis of the handling cylinder. A plurality of dust delivery valves for guiding the feed toward the rear of the
The lower end of the dust feeding valve located on the front side of the threshing device is positioned closer to the rotation locus of the outer peripheral portion of the barrel than the lower end of the dust feeding valve located on the rear side of the threshing device. doing.

According to this configuration, the distance between the lower end of the dust feeding valve on the front side of the threshing apparatus and the outer periphery of the handling cylinder is greater than the distance between the lower end of the dust feeding valve on the rear side of the threshing apparatus and the outer periphery of the handling cylinder. Since it becomes narrow, even if there is much quantity of the threshing processed material located in the front part side of a threshing apparatus, a dust feeding valve will guide and act on a threshing processed material appropriately.
Since the gap between the lower end of the dust feed valve on the rear side of the threshing device and the outer periphery of the barrel is wider than the gap between the lower end of the dust feed valve on the front side of the threshing device and the outer circumference of the barrel, It can suppress that the grain located in the rear part side of an apparatus receives guidance of a dust feed valve.

  Therefore, while suppressing the grain from being discharged to the outside of the threshing device by receiving the guidance by the dust feed valve, the handling room can be provided with more or less threshing processed products located on the front side of the threshing device. It can be made to flow smoothly toward the rear of the machine and can be threshed efficiently.

In order to make the present invention more suitable, the following configuration is provided.
The dust feeding valve that has a spiral blade at the front portion of the handling cylinder and is equipped with a scraping portion that scrapes the cereal into the inside of the handling chamber by the rotation of the spiral blade, and is located above the scraping portion. The lower end of the threshing device is located closer to the rotation locus of the outer peripheral portion of the barrel than the lower end of the dust feeding valve located on the rear side of the threshing device.

  A large volume of threshing processed material is located in the scraping section, but the distance between the dust feeding valve above the scraping section and the outer periphery of the barrel is narrow, so that the dust feeding valve is appropriate for the large bollard threshing processed material. It can be guided so that the threshing product can smoothly flow toward the inside of the handling chamber.

In order to make the present invention more suitable, the following configuration is provided.
A front portion of the handling drum is provided with a spiraling blade that has a spiral blade and scrapes the cereal into the inside of the handling chamber by the rotation of the spiral blade,
A handling unit is provided on the rear side of the scraping unit in the handling cylinder,
The lower end of the dust delivery valve located above the front part of the handling unit is closer to the rotation trajectory of the outer periphery of the handling unit than the lower end of the dust delivery valve located above the rear part of the handling unit. It was configured to be located at a close position.

  Since the distance between the dust feeding valve above the front of the handling unit and the outer periphery of the barrel is narrower than the distance between the dust feeding valve above the rear of the handling unit and the outer circumference of the handling barrel, the front side of the handling unit Even if there is a large amount of the threshing processed product located in the area, it is possible to receive the guidance by the dust feeding valve above the front part of the handling unit properly and to smoothly flow toward the rear of the handling chamber.

In order to make the present invention more suitable, the following configuration is provided.
When viewed in the direction along the rotational axis of the handling cylinder, the protruding height of the dust feeding valve projecting in the radial direction from the top plate toward the handling cylinder at the width direction central portion is the width of the dust feeding valve. It has a configuration in which it is higher than the projecting height projecting in the radial direction from the top plate to the handling cylinder at both ends in the direction.

  According to this configuration, the interval between the outer periphery of the barrel and the top plate at the portion where the central portion in the width direction of the dust feed valve is located is the outer periphery of the barrel at the portion where both ends in the width direction of the dust feed valve are located. Since the distance between the top plate and the top plate is wider, the part where the center part in the width direction of the dust feed valve is located and the both end parts in the width direction of the dust feed valve with respect to the threshing product flowing along the dust feed valve It is possible to impart different compressive force and conveying force depending on the part where the threshing is located, making it easy to loosen the threshing processed product.

In order to make the present invention more suitable, the following configuration is provided.
A front portion of the handling drum is provided with a spiraling blade that has a spiral blade and scrapes the cereal into the inside of the handling chamber by the rotation of the spiral blade,
A handling unit is provided on the rear side of the scraping unit in the handling cylinder,
The dust delivery valve located above the handling section is formed in a tapered shape so that the lower end edge thereof is closer to the top plate toward the start end side in the feed direction,
The amount of taper of the dust delivery valve located above the front of the handling unit is greater than the amount of taper of the dust delivery valve located above the rear of the handling unit, and the amount of the handling unit The circumferential length of the tapered portion in the dust feeding valve located above the front portion is larger than the circumferential length of the tapered portion in the dust feeding valve located above the rear portion of the handling section. Equipped with.

According to this configuration, the taper amount of the dust delivery valve located above the front part of the handling unit is larger than the taper amount of the dust delivery valve located above the rear part of the handling unit, and Since the circumferential length of the tapered part in the dust feeding valve located above the front part is larger than the circumferential length of the tapered part in the dust feeding valve located above the rear part of the handling part, The tip part of the dust feeding valve located above the front part can be tapered to prevent the threshing product from being caught.
Threshing at the tip is a dust feed valve that is located at a position close to the rotation trajectory of the outer periphery of the barrel and that effectively feeds the threshing product located at the front of the threshing processing part toward the rear of the handling chamber The processed product is difficult to catch and can be obtained in a state where it is difficult for the threshing processing unit to stay or clog, and regardless of the amount of threshing processed product located at the front of the threshing processing unit, it can be sent smoothly to the back of the handling room. Can be threshing efficiently.

It is a left view which shows the whole common type combine. It is a vertical left view which shows a threshing apparatus. It is a top view which shows a threshing apparatus. It is a front view which shows the scraping part of a handling cylinder. It is a rear view which shows the handling process part of a handling cylinder. It is a top view which shows the handling cylinder of a partially broken state. It is a perspective view which shows the guide member and liner member of a removal state. It is a front view which shows a guide member. It is the IX-IX cross section arrow view of FIG. It is a top view which shows the termination | terminus side of a spiral blade. It is a rear view which shows the dust delivery valve located above a picking-up part. It is a rear view which shows the dust delivery valve located above the front part of a handling process part. It is a rear view which shows the dust delivery valve located above the rear part of a handling process part. It is a top view which shows the guide member provided with the 1st another implementation structure. It is a top view which shows the guide member provided with the 2nd another implementation structure. It is a top view which shows the guide member provided with the 3rd another implementation structure. It is a top view which shows the guide member provided with the 4th another implementation structure.

  An embodiment of a combine according to the present invention will be described with reference to the drawings. A case where the present invention is applied to an ordinary combine as an example of a combine will be described. FIG. 1 is a left side view showing an entire ordinary combine. The direction of [F] shown in FIG. 1 is the front side of the self-propelled vehicle, the direction of [R] is the rear side of the self-propelled vehicle, the front side direction is the left side of the self-propelled vehicle, and the back side direction is the right side of the self-propelled vehicle. It is defined as

  As shown in FIG. 1, the ordinary combine includes a self-propelled vehicle in which a body frame 1 is configured by connecting a plurality of steel materials such as a square pipe material. A boarding operation unit 2 is formed in the right region of the front portion of the vehicle body frame 1. The boarding operation part 2 is equipped with a sunshade 2a that covers the boarding space. A pair of left and right crawler type traveling devices 3 are provided at the lower part of the body frame 1. At the front end on the left side of the vehicle body frame 1, a cutting and conveying unit 4 that harvests and conveys crops such as paddy rice, wheat, and rapeseed, which are located in front of the vehicle body during work travel, and a lifting shaft core P 1 that faces left and right. It is connected in a state where it can be moved up and down as a fulcrum. The swaying movement of the cutting and conveying unit 4 is performed by an expansion and contraction operation of a hydraulic lifting cylinder 6 installed over the body frame 1 and the feeder 5. The left half of the body frame 1 is provided with a threshing device 7 for receiving the threshing culm carried by the chopping and transporting unit 4 as a threshing object and performing a threshing process, and performing a sorting process on the processed product after the threshing process. is there. A grain tank 8 is provided at the right rear portion of the vehicle body frame 1 for collecting and storing single-grained grains conveyed from the threshing apparatus 7 by a lifting device (not shown). The grain tank 8 is equipped with a carry-out auger 9 composed of a screw conveyor for carrying out stored grains.

The cutting and conveying unit 4 will be described.
As the vehicle body travels, the cutting and conveying unit 4 separates the uncut wheat straw into the harvest target grain and the non-harvest grain straw by the dividers 11 provided at the left and right ends of the front part. Further, the rotary reel 12 disposed above the front part of the cutting and conveying unit 4 is raked back with the tip side of the harvested cereal to the rear, and is harvested by the clipper-type cutting device 13 provided at the bottom of the cutting and conveying unit 4. Cut the grain side of the grain and harvest the harvested grain. Then, the harvested cereals are gathered to a predetermined place in the left-right direction by the lateral feed auger 14 arranged behind the reaping device 13 and sent backward, and the shed cereals are fed from the predetermined place over the threshing device 7 by the feeder 5. The threshing device 7 is charged.

The threshing device 7 will be described.
In the explanation of the threshing device 7 and the handling cylinder 21, the processing start end side of the threshing device 7 and the handling cylinder 21 is defined as “front”, and the threshing device 7 and the handling cylinder 21 The processing end side [the grain discharge side (the upper side in FIG. 2)] is assumed to be “after”.

  FIG. 2 is a longitudinal left side view showing the threshing device 7. As shown in FIGS. 1 and 2, the threshing device 7 selects the threshing portion 7 </ b> A that performs the threshing process on the threshing processed product as the threshing processed product, and the processed product after the threshing process. A sorting unit 7B that performs processing, and a collecting unit 7C that collects a processing object to be collected after the sorting process are provided. In the threshing device 7, the threshing processing direction in the threshing unit 7A and the sorting processing direction in the sorting unit 7B coincide with the front-rear direction of the vehicle body so that the upper side of the threshing processing direction and the upper side of the sorting processing direction are located on the front side of the vehicle body. It is set to.

  As shown in FIG. 2, the threshing unit 7 </ b> A includes a handling chamber 20 formed in the upper part of the threshing device 7. In the handling chamber 20, a handling cylinder 21 is supported so as to be rotationally driven in a counterclockwise direction R (see FIG. 5) as viewed from the rear, with a handling cylinder axis facing the threshing device as a rotation axis P <b> 2. In the lower front part of the handling chamber 20, a supply port 22 is formed that allows the processed threshing material that has been scraped and conveyed by the feeder 5 to be put into the handling chamber 20. In the lower rear part of the handling chamber 20, a dust outlet 23 is formed that allows the processed material to be discharged after the threshing process to be discharged from the handling chamber 20. A receiving net 24 having a U-shape in the front-rear direction (see FIG. 4) is provided in a region below the handling cylinder 21 in the periphery of the handling cylinder 21.

  The handling chamber 20 is defined by a front support wall 25 and a rear support wall 26 that support the handling cylinder 21, a top plate 27 provided above the handling cylinder 21, a receiving net 24, and the like. As shown in FIGS. 2 and 4, the receiving net 24 is formed in an arc shape along the circumferential direction of the handling cylinder 21 as viewed along the handling cylinder axis, and has a predetermined interval in the direction along the handling cylinder axis. A plurality of vertical bars 24a arranged in a row and a plurality of vertical bars 24a formed in a straight line shape in a direction along the axis of the cylinder and arranged at predetermined intervals in the circumferential direction of the cylinder while intersecting the vertical bars 24a. Horizontal crosspiece 24b. The handling cylinder 21 includes a scraping portion 30 provided at the front part of the handling cylinder 21, and a handling processing unit 40 provided at the rear part of the handling cylinder 21.

  Accordingly, the threshing unit 7A uses the feeder 5 as a threshing product to remove the whole grain from the stock source to the tip of the harvested cereal that has been input from the supply port 22 into the handling chamber 20 by the feeder 5. The threshing process is carried out by the handling unit 40 and the receiving net 24, and the grains obtained by the threshing process are leaked from the receiving net 24 to the sorting unit 7B, and the threshing excrement and the cut straw generated by the threshing process are removed. The dust is discharged from the dust outlet 23 to the outside of the threshing device 7.

The handling cylinder 21 will be described.
As shown in FIGS. 2, 4, 5, and 6, the handling cylinder 21 is supported in the handling chamber 20 so as to be rotationally driven with the handling cylinder axis in the processing direction of the threshing unit 7 </ b> A as the rotation axis P <b> 2. The support shaft 29 is provided at a front portion of the handling cylinder 21 and is driven to rotate by the support shaft 29. And a handling processing unit 40 that is rotationally driven by the motor 29.

  The handling processing unit 40 includes a handling cylinder main body 21 </ b> A that is supported by the support shaft 29 and is rotationally driven by the support shaft 29. A plurality of teeth 41 are arranged on the outer circumferential surface of the barrel body 21 </ b> A as the outer circumferential surface of the barrel 21 at intervals in the direction along the barrel axis, and spaced in the circumferential direction of the barrel 21. They are arranged side by side. Each tooth 41 protrudes from the outer peripheral surface of the barrel body 21A toward the outer side in the barrel radial direction.

  As shown in FIGS. 2, 5, and 6, the handling cylinder main body 21 </ b> A is supported by the support shaft 29 in a state along the shaft axis of the handling cylinder and with a space in the circumferential direction of the support shaft 29. Six rod-shaped tooth support members 42 are provided. Each tooth-supporting member 42 supports a plurality of rod-shaped teeth 41 that are spaced apart in the direction along the shaft axis. The tooth-handling 41 of each tooth-handling support member 42 protrudes from the tooth-handling support member 42 toward the outside in the radial direction of the treatment drum 21. A disc-shaped front support member 43 is provided at the start end of the support shaft 29 in the processing direction so as to rotate integrally. A disc-shaped rear support member 44 is provided at the end of the support shaft 29 in the processing direction so as to rotate integrally. Three disk-like plate-like members 45 arranged at intervals in the processing direction are provided so as to rotate integrally with a portion of the support shaft 29 between the front support member 43 and the rear support member 44. The front end side of each tooth-handling support member 42 is supported on the outer peripheral portion of the front support member 43, the intermediate portion of each tooth-handling support member 42 is supported on the outer peripheral portion of each plate-like member 45, and The rear end side is supported by the outer peripheral portion of the rear support member 44, and each tooth handling support member 42 is supported so as to rotate integrally with the support shaft 29. A cylindrical surface that circumscribes the six tooth support members 42 is an outer peripheral surface of the treatment barrel main body 21A. As shown in FIG. 5, each tooth-supporting member 42 is supported on the outer peripheral portion of the plate-like member 45 in a state of being located on the radially inner side of the plate-like member 45 with respect to the outer peripheral edge 45 a of the plate-like member 45. . Specifically, the tooth handling support member 42 enters the recessed portion of the plate-like member 45 and is connected to the plate-like member 45 via the plate-like connecting member 47. The connecting member 47 and the tooth support member 42 are connected by welding. The connecting member 47 and the plate-like member 45 are connected by a connecting bolt.

  The arrangement pitch of the tooth handling teeth 41 in the direction of the handle cylinder axis in each tooth handling support member 42 is set to be the same. A pair of tooth support members 42 adjacent to each other in the circumferential direction of the barrel are supported by the front support member 43, the plate-like member 45, and the rear support member 44 in a state in which the front-rear direction is reversed. The tooth-handling 41 of the other tooth-handling support member 42 is positioned in the gap between the tooth-handling-handling members 42 of one tooth-handling support member 42 of the tooth-handling support member 42. Each tooth handling support member 42 is configured to be detachable, and when the tooth handling 41 is worn away, the front and back directions of the tooth handling support member 42 can be switched.

  In the present embodiment, the tooth handling support member 42 is made of a round pipe steel material. As the tooth handling support member 42, various rod-shaped members such as a round steel material, a square bar steel material, and a square pipe steel material can be adopted in addition to the round pipe steel material. Further, an angle material or a channel material can be used for the tooth handling support member 42. In the present embodiment, each tooth handling 41 is made of a round steel material. In addition to the round steel material, various types of rod-shaped members such as a square bar steel material, a round pipe material, and each pipe material can be employed for the tooth handling 41. In the present embodiment, a plate-like member having a shape in which the space between the support shaft 29 and the tooth handling support member 42 is closed over the entire region is employed as the plate-like member 45. As the plate-like member 45, a plate-like member having a plurality of through holes arranged in the circumferential direction of the plate-like member 45 between the support shaft 29 and the tooth handling support member 42 can be adopted.

  The handling cylinder 21 is configured in a bowl shape in which an internal space S2 (see FIGS. 5 and 6) communicating with the handling chamber 20 via the tooth handling support members 42 is formed, and the outer periphery of the handling cylinder 21 A plurality of teeth 41 projecting from the surface toward the outer side in the radial direction of the barrel are provided so as to be aligned in the circumferential direction and the processing direction of the barrel 21 with a space therebetween. It is.

  Accordingly, the handling cylinder 21 rotates in the counterclockwise direction R as viewed from the rear surface with the handling cylinder axis in the processing direction as the rotation axis P2, so that the threshing processed product from the scraping unit 30 is treated with the handling processing unit 40 and the receiving net. 24. The handling cylinder 21 is threshing-treated by striking with the tooth-treating support member 42 and the tooth-handling 41 on the threshing-treated product located in the handling processing space S1 (see FIG. 2) between the receiving net 24 and the tooth-handling 41. The processed product obtained by the threshing process is allowed to enter the internal space S2, and the processed product in the treated processing space S1 and the processed product in the internal space S2 are agitated and supported by these processed products. Threshing processing is performed by striking the member 42 and the tooth-handling 41, or setting the tooth-handling 41.

The scraping unit 30 will be described.
As shown in FIGS. 2, 4, and 6, the scraping portion 30 has a base portion 31 that has a smaller diameter toward the front end side of the handling cylinder 21, and the outer periphery of the base portion 31 toward the outside of the base portion 31. A spiral blade 32 provided on the outer peripheral portion of the base portion 31 in a standing state. Two spiral blades 32 are provided. The two spiral blades 32 are double spirals arranged at intervals in the circumferential direction of the base part 31, and are provided from the rear end part to the front end part of the base part 31. In the two spiral blades 32, the rising height A1 (see FIG. 6) from the base portion 31 on the terminal end side of the spiral blade 32 is lower than the rising height A2 (see FIG. 6) on the starting end side of the spiral blade 32. It is provided in the state. Regardless of the tapered shape of the base portion 31, the entire outer diameter from the terminal end side to the starting end side of the spiral blade 32 is constant or substantially constant. A plurality of support members 39 that support the spiral blade 32 on the side surface opposite to the conveying surface side of the spiral blade 32 are erected on the outer peripheral portion of the base portion 31 in a state of being arranged at intervals in the longitudinal direction of the spiral blade 32. It is.

  The base part 31 is configured by a sheet metal member wound in a truncated cone shape. The rear end portion of the base portion 31 is connected to the front support member 43. The rear end side of the base portion 31 is supported by the front support member 43. A disk-shaped support member 33 is connected across the distal end portion of the base portion 31 and the support shaft 29. The distal end side of the base portion 31 is supported by the support member 33. The support member 33 has a larger diameter than the outer diameter of the tip of the base portion 31 and a smaller diameter than the outer diameters of the two spiral blades 32.

  The base portion 31 is driven by the support shaft 29 via the support member 33 and the front support member 43, and the two spiral blades 32 are rotationally driven with the rotation axis P2 of the handling cylinder 21 as the rotation axis. The scraping unit 30 uses a spiral blade 32 that rotates the whole grain from the stock source to the tip of the harvested cereal that has been input from the supply port 22 to the handling chamber 20 by the feeder 5 as a threshing processed product. 2) and is sent to the handling space S <b> 1 between the handling unit 40 of the handling cylinder 21 and the receiving net 24.

  In each spiral blade 32, as shown in FIGS. 4, 8, and 9, a guide member 37 is provided across the starting end side of the spiral blade 32 and the support member 33. The guide member 37 has an outer peripheral edge 37 a, and the outer peripheral edge 37 a connects the outer peripheral edge 32 a at the start end of the spiral blade 32 and the outer peripheral edge 33 a of the support member 33. Specifically, the outer peripheral edge 32a of the spiral blade 32 is an outer peripheral edge of a liner member 35 described later. The outer peripheral edge 37 a of the guide member 37 is smoothly connected to the outer peripheral edge 33 a of the support member 33 and the outer peripheral edge 32 a of the spiral blade 32. The outer peripheral edge 33 a of the support member 33 and the outer peripheral edge 32 a of the spiral blade 32 are smoothly connected by the outer peripheral edge 32 a of the guide member 37. A step between the outer peripheral edge 32 a of the spiral blade 32 and the outer peripheral edge 33 a of the support member 33 is covered by the guide member 37, and the threshing product to be scraped by the spiral blade 32 is absorbed by the guide member 37. It is guided from 33 a to the outer peripheral edge 32 a of the spiral blade 32. It is possible to prevent the threshing product from being caught on the front end edge 32b (see FIG. 8) of the spiral blade 32 rising from the support member 33 to the outside of the support member 33.

  As shown in FIGS. 6 to 9, the guide member 37 is configured by a member different from the spiral blade 32 and the support member 33, and is supported by the support member 33 and the spiral blade 32. When the guide member 37 is worn out or deformed, the guide member 37 can be removed from the support member 33 and the spiral blade 32 and replaced with a new guide member.

  Specifically, as shown in FIGS. 8 and 9, the starting end side of the guide member 37 is overlapped with the support member 33 in the front-rear direction, and the guide member 37 and the support member 33 are connected by a fastener 38 oriented in the front-rear direction. Has been. Two fasteners 38 are provided. Each fastener 38 includes a connection bolt 38 a that penetrates the guide member 37 and the support member 33 forward from the rear of the support member 33, and a screw member 38 b that is screwed to the connection bolt 38 a on the front side of the support member 33. ing. The screw member 38b is fixed to the front side of the support member 33 by welding.

  As shown in FIGS. 8 and 9, the terminal side of the guide member 37 is overlapped with the spiral blade 32 in the front-rear direction, and the guide member 37 and the spiral blade 32 are connected by a fastener 36 oriented in the front-rear direction. Two fasteners 36 are provided. Each fastener 36 includes a connection bolt 36 a that penetrates the spiral blade 32 and the guide member 37 from the front of the spiral blade 32 toward the rear, and a screw member 36 b that is screwed to the connection bolt 36 a on the rear side of the guide member 37. I have. As shown in FIG. 7, a screw member 36b for one connecting bolt 36a and a screw member 36b for the other connecting bolt 36a are integrally formed. As shown in FIGS. 4, 7, and 8, the screw member 36 b further spirals from the portion where the screw hole acting on the connection bolt 36 a located on the inner peripheral side of the spiral blade 32 of the two connection bolts 36 a is located. 32 is provided with an extending portion 36c extending toward the inner peripheral side. The screw member 36b presses the liner member 35 with a tightening area widely secured by the extending portion 36c. The fasteners 36 and 38 are not limited to the connecting bolts 36a and 38a and the screw members 36b and 38b, but may include a headed connecting pin and a retaining pin that can be attached to and detached from the headed connecting pin.

  As shown in FIG. 2, a cover 46 is provided in front of the scraping portion 30 so as to be supported by the front support wall 25. As shown in FIG. 6, the cover 46 is configured by a disk-shaped plate member having an outer diameter larger than the outer diameter of the support member 33, and covers the entire support member 33 from the front. As shown in FIG. 9, a portion of the fastener 38 that protrudes forward from the support member 33 is covered by the cover 46, and the cedar can be prevented from being caught by the fastener 38.

  As shown in FIGS. 6, 7, 8, and 9, each spiral blade 32 includes a spiral and plate-like attachment member 32 </ b> A erected on the outer periphery of the base portion 31, and the conveyance surface side of the attachment member 32 </ b> A. And a liner plate member 35 having a spiral shape and a plate shape.

  As shown in FIGS. 4 and 8, portions of the liner member 35 other than the start end side overlapping the guide member 37 are connected to the attachment member 32 </ b> A by a plurality of fasteners 48 arranged in the longitudinal direction of the liner member 35. Similar to the fastener 36, the fastener 48 includes a connecting bolt 48a and a screw member 48b. The connection of the liner member 35 to the mounting member 32A on the start end side overlapping the guide member 37 and the connection of the guide member 37 to the liner member 35 are performed by the same fastener 36. On the starting end side of the spiral blade 32, the attachment member 32A, the liner member 35, and the guide member 37 are coupled together by the same fastener 38 in a state where they are overlapped in this order. By operating the fastener 38 to the release state, separation of the guide member 37 from the liner member 35 on the terminal end side and removal from the attachment member 32A on the start end side of the liner member 35 can be performed at once. As shown in FIGS. 4 and 6, one of the plurality of fasteners 48 arranged in the longitudinal direction of the liner member 35, one fastener 48 </ b> A protrudes from the spiral blade 32 to the outer peripheral side, and scrapes the threshing processed product. The screw member 48b is provided with a protruding portion 48c for feeding operation.

  As shown in FIGS. 6 and 10, a notch 32 c is provided in the outer peripheral portion on the terminal end side of the spiral blade 32. The notch 32 c is provided across the attachment member 32 </ b> A and the liner member 35. As shown in FIG. 10, the gap K between the terminal end side of the spiral blade 32 and the lateral wall 28 of the threshing device 7 can be widened by the notch 32 c, and the threshing processed product can be easily moved to the processing unit 40.

  As shown in FIGS. 2 and 3, a plurality of dust feeding valves arranged in the direction along the rotation axis P <b> 2 of the handling cylinder 21 (processing direction of the threshing unit 7 </ b> A) on the inner surface side of the top plate 27 that forms the handling chamber 20. 50 is provided. Each dust feeding valve 50 is constituted by a strip-like member, and is supported by the top plate 27 via a plurality of mounting screws 51 arranged at intervals in the longitudinal direction of the dust feeding valve 50. Each dust feed valve 50 guides the threshing processed product toward the rear of the handling chamber 20 by touching the threshing processed product to which the rotational force is applied by the handling cylinder 21. Therefore, the dust feed valve 50 promotes the discharge of the threshing processed product from the dust outlet 23.

  FIG. 11 is a dust feed valve located on the most front side of the threshing device among the plurality of dust feed valves 50A and 50B located on the front side of the threshing device 7 of the plurality of dust feed valves 50. 4 is a rear view showing a dust delivery valve 50A located above the insertion portion 30. FIG. FIG. 12 shows one dust feed valve 50B in the plurality of dust feed valves 50B located above the front part of the handling unit 40 among the plurality of dust feed valves 50A and 50B located on the front side of the threshing device 7. FIG. FIG. 13 shows a plurality of dust delivery valves 50C located on the rear side of the threshing device 7 among the plurality of dust delivery valves 50, and a plurality of dust delivery valves 50C located above the rear part of the handling unit 40. It is a rear view which shows one dust delivery valve 50C.

  As shown in FIGS. 2, 11, 12, and 13, the lower end 50 At of the dust feed valve 50 </ b> A located above the scraping part 30 and the lower end 50 </ b> Bt of the dust feed valve 50 </ b> B located above the front part of the handling unit 40. However, the threshing device 7 is positioned closer to the rotation trajectory T of the tooth handling tip as the outer peripheral part of the handling cylinder 21 than the lower ends 50Ct of the plurality of dust feeding valves 50C located above the rear part of the handling processing unit 40. Even if there is a large amount of threshing processed material located on the front side (front portion of the scraping unit 30 and the handling processing unit 40), the dust feeding valves 50A and 50B are caused to act accurately on the threshing processed material. The dust feeding valve 50C located on the rear side of the threshing device 7 (the rear part of the handling unit 40) is configured to be less likely to act on the grain.

  As shown in FIG. 11, the dust delivery valve 50 </ b> A located above the scraping portion 30 is configured in a state where the distance “a” between the lower end 50 At and the rotation trajectory T in the portion from the front end to the rear end is the same. Yes. As shown in FIG. 12, the dust delivery valve 50B located above the front part of the handling unit 40 has a lower end 50Bt and a rotation trajectory T at a part from the end of the front end 50bs to the rear end 50r of the dust delivery valve 50B. The distance a is the same. As shown in FIG. 13, the dust delivery valve 50C located above the rear part of the handling unit 40 has a lower end 50Ct and a rotation trajectory T at a part from the end of the front end part 50Cs to the rear end 50Cr of the dust delivery valve 50C. The interval b is configured to be the same. The interval a between the dust delivery valves 50A and the interval a between the dust delivery valves 50B are the same size. The interval b between the dust delivery valves 50C is larger than the interval a between the dust delivery valves 50A and the interval a between the dust delivery valves 50B.

  As shown in FIG. 11, the dust delivery valve 50 </ b> A is located in the width direction center side portion of the dust delivery valve 50 </ b> A (located at the center in the lateral width direction of the handling chamber 20) when viewed in the direction along the rotation axis P <b> 2 of the handling cylinder 21. Part) protrudes from the top plate 27 toward the handle cylinder 21 in the radial direction of the handle cylinder 21 at a protruding height 50Ah, and the rear end portion of the dust feed valve 50A extends from the top plate 27 toward the handle cylinder 21. It is comprised in the state which protrudes in the radial direction of the treatment cylinder 21 with protrusion height 50Az. The protruding height 50Ah at the center portion in the width direction of the dust feeding valve 50A is higher than the protruding height 50Az at the rear end side portion of the dust feeding valve 50A.

  As shown in FIG. 12, the dust delivery valve 50 </ b> B is directed from the top plate 27 toward the handling cylinder 21 in the center portion in the width direction of the dust delivery valve 50 </ b> B when viewed in the direction along the rotational axis P <b> 2 of the handling cylinder 21. The height 50Bh projecting in the radial direction is configured to be higher than the projecting heights 50Bx, 50Bz in the radial direction from the top cylinder 27 at the both end portions of the dust feeding valve 50B.

  Specifically, when viewed in the direction along the rotation axis P <b> 2 of the handling cylinder 21, the width direction center side portion (the portion located in the width direction center portion of the handling chamber 20) of the dust feeding valve 50 </ b> B is from the top plate 27. Projecting in the radial direction of the handling cylinder 21 toward the handling cylinder 21 with a projection height of 50 Bh, the tip side part of the dust feed valve 50B (the tip part 50Bs and the part closer to the center in the lateral width direction with respect to the tip part 50Bs) Protrudes from the top plate 27 toward the handle cylinder 21 in the radial direction of the handle cylinder 21 at a protruding height 50Bx, and the rear end side portion of the dust feed valve 50B faces the handle cylinder 21 from the top plate 27. Projecting at a projecting height of 50 Bz. The protruding height 50Bh of the central portion in the width direction is higher than the protruding height 50Bx of the tip side portion. The protruding height 50Bh of the central portion in the width direction is higher than the protruding height 50Bz of the rear end side portion. The protruding height 50Bx of the front end side portion is higher than the protruding height 50Bz of the rear end side portion.

  As shown in FIG. 13, the dust delivery valve 50 </ b> C is directed from the top plate 27 toward the handling cylinder 21 in the center portion in the width direction of the dust delivery valve 50 </ b> C when viewed in the direction along the rotational axis P <b> 2 of the handling cylinder 21. The height 50Ch that protrudes in the radial direction is configured to be higher than the heights 50Cx and 50Cz that protrude in the radial direction from the top plate 27 toward the handling cylinder 21 at both ends of the dust feeding valve 50C. Yes.

  Specifically, when viewed in the direction along the rotation axis P <b> 2 of the handling cylinder 21, the width direction center side portion (the portion located in the width direction center portion of the handling chamber 20) of the dust feeding valve 50 </ b> C is from the top plate 27. Projecting in the radial direction of the handling cylinder 21 toward the handling cylinder 21 with a protruding height of 50 Ch, the tip side portion of the dust feed valve 50C (the tip part 50Cs and the part closer to the center in the width direction with respect to the tip part 50Cs). Protrudes from the top plate 27 toward the handle cylinder 21 in the radial direction of the handle cylinder 21 with a protruding height 50 Cx, and the rear end portion of the dust feed valve 50 C faces the handle cylinder 21 from the top plate 27. Projecting at a projecting height of 50 Cz. The protruding height 50Ch of the central portion in the width direction is higher than the protruding height 50Cx of the tip side portion. The protruding height 50Ch of the central portion in the width direction is higher than the protruding height 50Cz of the rear end side portion. The protrusion height 50Cx of the front end side portion is higher than the protrusion height 50Cz of the rear end side portion.

As shown in FIGS. 12 and 13, the top end portions 50Bs and 50Cs of the dust feed valves 50B and 50C located above the handling unit 40 are such that the lower end edges 50BL and 50CL are closer to the start end side in the feed direction of the processing object. It is formed in a tapered shape so as to approach. The circumferential length at the tip 50Bs with respect to the radial length H1 of the notch K1 at the tip 50Bs of the dust feed valve 50B located above the front part of the handling unit 40 (the length in the handle cylinder radial direction). A ratio of L1 (length in the circumferential direction of the cylinder) is defined as a taper amount BS of the dust feeding valve 50B. The ratio of the circumferential length L2 at the tip 50Cs to the radial length H2 of the notch K2 at the tip 50Cs of the dust feed valve 50C located above the rear part of the handling unit 40 is tapered. The quantity CS. The taper amount BS of the dust feed valve 50B is set larger than the taper amount CS of the dust feed valve 50C. The circumferential length L1 of the tip 50b of the dust delivery valve 50B is set to be larger than the circumferential length L2 of the tip 50Cs of the dust delivery valve 50C. The interval a between the lower end 50Bn of the dust delivery valve 50B and the rotation locus T is narrower than the interval b between the lower end 50Cn of the dust delivery valve 50C and the rotation locus T. It can be tapered so that it is not easily caught.
In the present embodiment, the lower end edge of the tip end portion 50Cs of the dust delivery valve 50C is formed in a protruding curve shape toward the inside of the handling chamber. The lower end edge of the tip 50Cs of the dust delivery valve 50C can be formed in a straight line, like the lower end edge 50BL of the tip 50Bs of the dust delivery valve 50B.

The sorting unit 7B will be described.
As shown in FIG. 2, the sorting unit 7 </ b> B includes a swing sorting device 55 provided below the receiving net 24. The swing sorting device 55 swings in the front-rear direction by operating an eccentric cam type drive mechanism 56 provided at the rear end. Further, a red pepper 57 is arranged in front of and below the swing sorting device 55. The red pepper 57 generates a sorting wind by a blower that rotates counterclockwise when viewed from the left side. The swing sorting device 55 receives the processed material from the receiving net 24 while swinging, screens and sorts the received processed product as a processing object to be sorted in the sorting process direction, and sorts from the Kara 57. Sorts wind by wind.

The collection unit 7C will be described.
In the collection unit 7C, a first collection unit 58 is formed below the upper side of the sorting process direction of the swing sorting device 55. Further, a second collection part 59 is formed below the swinging sorting device 55 on the lower side in the sorting process direction. The No. 1 collection part 58 is formed in a bottom-constricted shape when viewed from the side, and guides the single-grained grains that have flowed down from the upper side in the sorting process direction of the swing sorter 55 to the bottom as the first item. A first screw 58a for carrying out the first item is arranged in the left-right direction at the bottom of the first collecting unit 58. The 1st screw 58a conveys the 1st thing which flowed down to the bottom part of the 1st recovery part 58 to a lifting device (not shown) connected in communication with the right end of the 1st screw 58a. The second collecting portion 59 is formed in a constricted shape when viewed from the side, and guides the grain with branches and the like flowing down from the lower side of the sorting direction of the swing sorting device 55 to the bottom as the second thing. On the bottom of the second collection part 59, a second screw 59a for carrying out the second thing is arranged in the left-right direction. The 2nd screw 59a supplies the 2nd thing which flowed down to the bottom part of the 2nd collection | recovery part 59 to the 2nd reduction | restoration apparatus 60 connected to the right end part of the 2nd screw 59a. The second reduction device 60 lifts the second product from the second screw 59 a and returns it to the swing sorting device 55.

[Another Example]
(1) FIG. 14 is a plan view showing a guide member 37 having a first alternative embodiment structure. In the guide member 37 having the first different implementation structure, the terminal end side of the guide member 37 is not connected to the liner member 35 of the spiral blades 32 but is connected only to the attachment member 32 </ b> A of the spiral blades 32. The blade 32 is supported.

  (2) FIG. 15 is a plan view showing a guide member 37 having a second alternative embodiment structure. In the guide member 37 having the second different implementation structure, the starting end side of the guide member 37 is not connected to the spiral blade 32 but is applied to the spiral blade 32. The guide member 37 is supported only by the support member 33.

  (3) FIG. 16 is a plan view showing a guide member 37 having a third alternative embodiment structure. The guide member 37 having the third different implementation structure is supported by the spiral blade 32 in a state of being integrally formed with the mounting member 32A of the spiral blade 32. The guide member 37 may be formed integrally with the liner member 35 of the spiral blade 32.

  (4) FIG. 17 is a plan view showing a guide member 37 having a fourth alternative embodiment structure. In the guide member 37 having the fourth different implementation structure, the start end side of the guide member 37 is applied to the support member 33 without being connected thereto. The guide member 37 is not supported by the support member 33 but is supported by the spiral blade 32.

  (5) In the above-described embodiment, the example in which the liner member 35 is provided on the spiral blade 32 has been described. However, as the spiral blade 32, a spiral blade having a configuration without the liner member 35 can be employed.

  (6) In the above-described embodiment, an example in which the dust feeding valve 50A is provided above the scraping portion 30 has been described. However, the dust feeding valve 50A above the scraping portion 30 may be provided.

  (7) In the above-described embodiment, an example in which the cover 46 is provided has been described. However, the cover 46 may be omitted.

  (8) In the above-described embodiment, the example in which the scraping unit 30 includes the two spiral blades 32 is shown, but the number is not limited to two, but only one spiral blade 32, or three or more spiral blades 32. You may employ | adopt the scraping part provided with.

  (9) In the above-described embodiment, an example in which the handling unit 40 is configured in a bar shape has been shown. However, a drum-type handling unit 40 in which teeth are provided on the outer peripheral surface of a cylindrical barrel body is employed. May be.

  (10) In the above-described embodiment, an example in which the processing direction of the threshing device 7 is configured to be along the front-rear direction of the self-propelled vehicle has been described, but the processing direction of the threshing device 7 is along the lateral direction of the self-propelled vehicle. It may be configured and implemented.

  The present invention is not limited to a combine equipped with a crawler type traveling device, but can also be used for a combine equipped with a traveling wheel instead of a crawler type traveling device or a traveling device combining a mini crawler and a traveling wheel. is there.

DESCRIPTION OF SYMBOLS 5 Feeder 7 Threshing apparatus 20 Handling chamber 21 Handling cylinder 27 Top plate 30 Scratching part 32 Spiral blade 40 Handling part 50A Dust feeding valve 50At lower end 50B Dust feeding valve 50Bh Projection height 50Bs Tip part 50Bt Lower end 50Bx Projection height 50Bz Height 50C Dust feed valve 50Ch Projection height 50Cs Tip 50Ct Lower end 50Cx Projection height 50Cz Projection height Bs Taper amount Cs Taper amount L1 Circumferential length L2 Circumferential length P2 Rotating shaft core T Rotating locus

Claims (5)

A feeder for transporting the harvested cereal meal;
A threshing device for handling the harvested cereal meal from the feeder, and handling the treated harvested cereal meal;
The threshing device is supported by a handling cylinder that is rotatably driven in the handling chamber, and is supported by the top plate of the handling chamber in a state of being aligned in a direction along the rotation axis of the handling cylinder. A plurality of dust delivery valves for guiding the feed toward the rear of the
The lower end of the dust feeding valve located on the front side of the threshing device is positioned closer to the rotation locus of the outer peripheral portion of the barrel than the lower end of the dust feeding valve located on the rear side of the threshing device. Combine that is. A front portion of the handling drum is provided with a spiraling blade that has a spiral blade and scrapes the cereal into the inside of the handling chamber by the rotation of the spiral blade,
The lower end of the dust feeding valve located above the scraping portion is located closer to the rotation trajectory of the outer periphery of the barrel than the lower end of the dust feeding valve located on the rear side of the threshing device. The combine according to claim 1. A front portion of the handling drum is provided with a spiraling blade that has a spiral blade and scrapes the cereal into the inside of the handling chamber by the rotation of the spiral blade,
A handling unit is provided on the rear side of the scraping unit in the handling cylinder,
The lower end of the dust delivery valve located above the front part of the handling unit is closer to the rotation trajectory of the outer periphery of the handling unit than the lower end of the dust delivery valve located above the rear part of the handling unit. The combine according to claim 1 or 2, which is located at a close position.   When viewed in the direction along the rotational axis of the handling cylinder, the protruding height of the dust feeding valve projecting in the radial direction from the top plate toward the handling cylinder at the width direction central portion is the width of the dust feeding valve. The combine as described in any one of Claim 1 to 3 higher than the protrusion height which protrudes in the radial direction from the said top plate in the direction both ends side part toward the said handling cylinder. A front portion of the handling drum is provided with a spiraling blade that has a spiral blade and scrapes the cereal into the inside of the handling chamber by the rotation of the spiral blade,
A handling unit is provided on the rear side of the scraping unit in the handling cylinder,
The dust delivery valve located above the handling section is formed in a tapered shape so that the lower end edge thereof is closer to the top plate toward the start end side in the feed direction,
The amount of taper of the dust delivery valve located above the front of the handling unit is greater than the amount of taper of the dust delivery valve located above the rear of the handling unit, and the amount of the handling unit The circumferential length of the tapered portion in the dust feeding valve located above the front portion is larger than the circumferential length of the tapered portion in the dust feeding valve located above the rear portion of the handling unit. The combine according to any one of 1 to 4.

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