JP2006174710A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To detach the screw blade of a screw type threshing cylinder having a spiral screw blade on the outer peripheral surface of a barrel part. <P>SOLUTION: In the combine harvester equipped with the threshing cylinder having the spiral screw blade 25 and a threshing tooth body 51 on the outer peripheral surface, the screw blade is detachably attached through the threshing tooth body to the threshing cylinder. The threshing tooth body is equipped with a pair of threshing tooth pieces that are opposed in the axial direction of the threshing cylinder and stand in the radial direction of the threshing cylinder and a fixing piece that supports the pair of the threshing tooth pieces and is detachably fixed to the threshing cylinder. The screw blade is formed dividedly into a plurality of parts and only a part of the screw blade is replaced. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a combine, and more particularly, to a combine provided with a handling cylinder having spiral screw blades on its outer peripheral surface.

  Conventionally, in a threshing device mounted on a general-purpose combiner or the like, screw blades are provided on the outer periphery of a handling cylinder that is rotationally driven by engine power in the general-purpose combiner, and protrudes spirally and radially outward. 2. Description of the Related Art It is known that teeth are arranged at predetermined intervals so that one end protrudes radially outward from the outer peripheral edge of the screw blade.

In this type of threshing device, the cereals harvested by the pre-harvesting processing device in the general-purpose combiner are transported to the handling room of the threshing device, and each tooth treatment removes the grains from the cereals as the handling cylinder rotates. I try to handle it.
JP 2002-142544 A

  By the way, in the said conventional combine, since the screw blade | wing was fixed to the handling cylinder by welding etc., even if the situation where a screw blade | wing deform | transforms occurred, it was very difficult to correct.

  Therefore, when the screw blade is deformed as described above, the handling cylinder to which the screw blade is fixed must be replaced.

  Therefore, an object of the present invention is to provide a combine that can be easily replaced even when the screw blade is deformed.

  The present invention is characterized in that in a combine provided with a handling cylinder having a helical screw blade and a tooth-handling body on the outer peripheral surface of the body portion, the screw blade is detachably attached to the body portion via the tooth-handling body. To provide a combine.

  The present invention is also characterized by the following configuration.

  (1) The screw blade is divided into a plurality of parts.

  (2) The tooth-treating body is opposed to the handle cylinder axial direction and supports the pair of tooth-treating pieces standing up in the radial direction of the handle cylinder and the pair of tooth-treating pieces, and is detachably attached to the trunk part. And mounting piece.

  (3) A reinforcing piece is interposed between the pair of tooth handling pieces.

  (4) Low screw blades were attached to the side of the cutting barrel input of the harvesting barrel, and high screw blades were attached to the discharge side.

  (1) In the present invention described in claim 1, in the combine provided with a handling cylinder having a helical screw blade and a tooth-handling body on the outer peripheral surface of the body portion, the screw blade is connected to the body portion via the tooth-handling body. Removably attached to.

  Since the screw blade is fixed to the handle barrel through the tooth handling body in this way, the screw blade can be easily removed by releasing the connection between the tooth treatment body and the screw blade. It becomes.

  As a result, not only when the screw blade is deformed, but also the replacement of the screw blade according to the type of crop can be realized in order to prevent contamination.

  (2) In the present invention described in claim 2, the screw blade is divided into a plurality of parts.

  Thus, the screw blades are divided into a plurality of blades, and each blade is connected to the tooth-handling body, so that the blade can be replaced for each blade.

  As a result, only the portion of the screw blade that needs to be replaced is required, and the replacement work can be minimized, and the blade material can be efficiently removed.

  (3) In the present invention described in claim 3, the tooth handling body is opposed to the handle cylinder axis direction and supports a pair of tooth treatment pieces standing upright in the handle cylinder radial direction, and the pair of tooth treatment pieces. And an attachment piece for detachably attaching to the body.

  In this way, the pair of tooth handling pieces are supported by one mounting piece and are detachable from the handling cylinder.

  As a result, since a pair of tooth handling pieces can be exchanged at the same time, the trouble of removing each tooth handling piece can be reduced, and workability is increased.

  (4) In this invention of Claim 4, a reinforcement piece is interposed between a pair of tooth-handling pieces.

  Thus, since the reinforcing piece is interposed between the tooth handling pieces, the fixing strength of the screw blades to the trunk portion via the tooth handling body can be increased.

  As a result, reliability can be improved.

  (5) In the present invention according to claim 5, since the low screw blades are attached to the cutting grain input side of the handling cylinder and the high screw blades are attached to the discharge side, the grain removing action is enhanced in the front half of the trunk part. Transportability can be improved in the rear half of the section.

  As a result, it is possible to have both the grain-removing property and the transportability, and the workability can be improved.

  A to A shown in FIGS. 2 to 4 is a combine according to the present invention. In the figure, 1 is a machine frame that equips a traveling frame 3 with a traveling crawler 2, and 4 is an axial flow that threshs the harvested culm. A threshing unit equipped with a screw-type barrel 5 and mounted on the machine frame 1, a sorting unit 6 for sorting the grains threshed by the threshing unit 4, and a milling cylinder 8 A grain tank for storing the grains of the threshing unit 4 to be taken out via the threshing part 9, a cutting part installed so as to be movable up and down via a lifting cylinder 10 in front of the lower part of the threshing part 4; A driving cabin provided with a driving operation unit 13 and disposed in front of the grain tank 7, an engine unit provided at the rear of the grain tank 7 and provided with an engine 15, and 16 provided with the grain It is an upper grain carrying out auger that takes out the grain in the tank 7.

  And the said cutting part 9 is connected with the cutting header 17 which takes in uncut grain cereal, and the feeder house 18 which is connected with the rear part approximate center of the header 17 and sends the cutting cereal to the threshing part 4, A reel 19 for picking the uncut grain, a reciprocating cutting blade 20, and a grain picking auger 21 are provided in the harvesting header 17, and the harvested grain that is taken into the header 17 is fed to the feeder house 18. It feeds into the threshing part 4 via the supply chain conveyor 22 installed inside, and is comprised so that a threshing process may be carried out.

  Moreover, the 2nd reduction | restoration cylinder 23 is arrange | positioned in the right outer side of the threshing part 4, and it is provided so that a 2nd processed material may be returned to the selection mechanism 6 and re-sorted.

  Further, as shown in FIG. 4, the screw-type handling cylinder 5 is provided with a cylindrical trunk section 24 having a length substantially equal to the longitudinal length of the threshing section 4, and is erected in a radial manner by being wound around the outer circumference of the trunk section 24. Provided with a spiral screw blade 25, a tooth-handling body 51 for threshing the crop, and a dust-extruding protrusion 26 provided on the outer periphery of the rear end of the body portion 24. Is installed with the front end of the barrel 5 facing the inlet 28 on the front side of the handling chamber 27 communicating with the feeder house 18 and the dust outlet 29 on the rear side of the handling chamber 27. 5 is configured to face the rear end of the handle 5, and the receiving net 30 is stretched under the handling cylinder 5 except for the dust outlet 29, and the whole harvested cereal mash is introduced from the feeder house 18 and threshed. is doing.

  Further, front and rear swing sorting plates 31 and 32 constituting the sorting mechanism 6 are provided, and the front and rear swing sorting plates 31 and 32 are driven to swing in the front-rear direction via the swing links 33 and 34 and the arm 35. The front sorter 31 is provided with a feed pan 36 positioned below the front of the handling cylinder 5, a first chaff sheave 37 with adjustable grain leakage, and a grain sheave 38 provided below the chaff sheave 37. 37, a second chaff sheave 39 continuously provided on the rear side and first and second-class cereal plates 40, 41 are provided on the rear swing sorter 32.

  Also, a tang fan 44 that supplies the selection wind through the first and second air passages 42 and 43 below the first chaff sheave 37 and the grain sheave 38, and receives the grain from the grain sheave 38 and sends it to the milling cylinder 8. The first basket 45 and the first conveyor 46, the second basket 47 and the second conveyor 48 that send the reduced product from the second flow grain board 41 to the second reduction cylinder 23, and the rear end of the chaff sheave 39 The third mouth 49 is provided, and the grain of the first bowl 45 is sent to the grain tank 7 and the reduced product of the second bowl 47 is sent to the feed pan 36.

  Hereinafter, the configuration of the tooth handling body and the screw blade will be described with reference to FIGS. 1 and 5 to 10.

  As shown in FIGS. 5 and 6, the tooth handling body 51 is attached to the outer periphery of the cylindrical body 24 and is detachably coupled to the cylindrical body 24 by a bolt, The first tooth-handling piece 53 and the second tooth-handling piece 54 for threshing the crop and the reinforcing piece 55 are described in detail below.

  The mounting piece 52 is bent so that one end and the other end in the rotation direction of the handling cylinder 5 of the substantially square plate are in contact with the cylindrical body 24, and part of the mounting piece 52 is in contact with the outer periphery of the cylindrical body 24. A horizontal portion 52a which is a horizontal portion of the plate, a first inclined portion 52b which is bent toward one end of the horizontal portion 52a and partly contacts the outer periphery of the cylindrical body 24, and the other end of the horizontal portion 52a And a second inclined portion 52c that is bent toward the outer periphery and partially contacts the outer periphery of the cylindrical barrel portion 24.

  Further, the first inclined portion 52b is formed with bolt through holes 52b1 and 52b2 that are used for connecting and fixing to the cylindrical body portion 24 with bolts. Similarly, the first inclined portion 52b has a second inclined portion 52c. Also, bolt through holes 52c1 and 52c2 used for connecting and fixing to the cylindrical body portion 24 with bolts are formed.

  Therefore, since the horizontal portion 52a and the first and second inclined portions 52b and 52c can be brought into contact with the outer periphery of the cylindrical body portion 24, the tooth handling body 51 can be fixed stably.

  In addition, the first and second inclined portions 52b and 52c are fixed to the cylindrical body 24 with a plurality of bolts using the bolt through holes 52b1, 52b2, 52c1 and 52c2, respectively. Can be firmly fixed.

  At one end and the other end of the horizontal portion 52a in the axis direction of the handle cylinder 5, a first handle tooth piece 53 and a second handle tooth piece 54 are respectively formed upright in the handle cylinder radial direction. In other words, the attachment piece 52 is formed with a pair of handle teeth pieces 53 and 54 that are opposed to the handle cylinder axis direction and are erected in the handle cylinder radial direction, and are supported.

  The first tooth-treating piece 53 is formed with bolt through-holes 53c to 53e for fixing to the screw blade 25 with bolts in the axial direction of the cylindrical trunk portion 24. The tooth pieces 54 are also formed with bolt through holes 54c to 54e.

  Here, a plurality of bolt through holes 53c to 53e, 54c to 54e of the tooth-handling pieces 53 and 54 are formed to correspond to the types of the screw blades 25, and the screw blades 25 and the tooth-handling pieces 53, 54 is fixed with one or more bolts via bolt through holes 25b1 to 3 of screw blade 25, which will be described later, and bolt through holes 53c to 53e, 54c to 54e of tooth-treating pieces 53 and 54, respectively. . For example, bolt through holes 53c to 53e are used for high screw blades as shown in FIG. 7, and bolt through holes 53e are used for low screw blades as shown in FIG. .

  Since the screw blades 25 can be fixed to the tooth handling body 51 in this way, the screw blades 25 can be detachably fixed to the cylindrical body portion 24 via the tooth processing body 51.

  Moreover, depending on the height of the screw blade 25, the bolt through holes 53c to 53d and 54c to 54d can be used properly.

  In the present embodiment, the number of bolt through holes 25b of the screw blade 25 is three, but the present invention is not limited to this. The bolt through holes 25b may be one or two.

  Further, as shown in FIG. 1, the screw blade 25 has a spiral shape having an angle α (hereinafter referred to as “lead angle α”) with respect to the rotation direction of the handle cylinder 5, and the first blade as shown in FIG. If the tooth-handling body 51 is configured by using the tooth-handling piece 53 and the second tooth-handling piece 54 as a substantially lead angle α (hereinafter referred to as “mounting angle”), the cylindrical body portion 24 of the tooth-handling body 51 is formed. It becomes possible to attach and detach smoothly.

  Further, the first tooth-treating piece 53 is inclined from the bottom of the first tooth-treating piece 53 to the upper portion of the first tooth-treating piece 53 (cylindrical shape) at a substantially center B of one end of the horizontal portion 52a in the axial direction of the treatment barrel 5. It has an inclined portion 53a that retreats from the bottom of the first tooth-treating piece 53 to the upper portion of the first tooth-treating piece 53 with respect to the rotation direction of the trunk portion 24, and is inclined symmetrically with the inclined portion 53a about the center B. It has a part 53b. Similarly, the first tooth-treating piece 54 is inclined symmetrically with the inclined portion 54a with respect to the center of the inclined portion 54a inclined to the approximate center of the other end of the horizontal portion 52a in the axial direction of the handle cylinder 5. It has a part 54b.

  In this way, since the inclined portions 53a, 53b, 54a, 54b are formed long from the bottom of the tooth handling piece to the top of the tooth handling piece, even when a high screw blade as shown in FIG. Even when such a low screw blade is attached, an inclined portion (receding angle surface) protruding from the screw blade can be present.

  In addition, since the first tooth-handling piece 53 and the second tooth-handling piece 54 have two inclined portions 53a, 53b, 54a, 54b that are symmetrical to each other, the center C of the tooth-handling body 51 is defined. Even if the tooth-handling body 51 is rotated 180 degrees as an axis, it can be used. Therefore, for example, even if the inclined portions 53a and 54a are worn or damaged by tooth handling, the tooth handling body 51 can be rotated to use the inclined portions 53b and 53b as tooth handling.

  A reinforcing piece 55 is interposed between the first tooth-handling piece 53 and the second tooth-handling piece 54, and the reinforcing piece 55 is further coupled to the horizontal portion 52a. In addition, the reinforcing piece 55 is formed of a concave flat plate in order to increase the joining strength by increasing the joining portion of the first tooth handling piece 53, the second tooth handling piece 54, and the horizontal portion 52a.

  Thus, since the first tooth-handing piece 53 and the second tooth-handling piece 54 of the tooth-handling body 51 are reinforced by the reinforcing piece 55 in addition to the mounting piece 52, the screw blade 25 is attached to the first tooth-handing piece 51. By fixing and connecting the tooth-handling piece 53 and the second tooth-handling piece 54, the fixing strength of the screw blade 25 to the cylindrical body 24 via the tooth-handling body 51 can be increased.

  Therefore, it is not necessary to fix the screw blade 25 to the cylindrical body portion 24 by welding, and as a result, the screw blade 25 can be attached to and detached from the handling cylinder 5.

  Further, as shown in FIG. 1, the screw blade 25 is directly fixed to the cylindrical body 24 with bolts in addition to bolt through holes 25b1 to 3 and 25c1 to 3 for joining to the tooth handling body 51 with bolts. A bolt through hole 25d is formed for this purpose. The bolt through hole 25d is formed in the radial direction of the handling cylinder 5 at a contact portion 25e formed in the axial direction of the handling cylinder 5 and on the opposite side of the crop conveyance surface.

  In this way, the screw blade 25 is connected to the cylindrical body 24 in addition to the bolt connection to the tooth handling body 51, and the degree of fixing of the screw blade 25 to the cylindrical body 24 is further increased. Can be improved.

  Moreover, since the bolt through hole 25c is formed on the surface opposite to the crop conveyance surface, the conveyance crop is caught by the bolt attached to the bolt through hole 25c, thereby preventing the conveyance from being disturbed. In addition, the attached bolts can be reduced from being worn by the transport crop.

  Here, the screw blade 25 has a portion divided into a plurality of portions around the outer periphery of the cylindrical body portion 24. 10 and 11 show an example of a screw blade 25 composed of four blades 25a per one circumference of the outer periphery of the cylindrical body portion 24. FIG.

  Each of the blades 25a has bolt through holes 25b1 to 25b1 and 25c1 to 3 connected to any or all of the bolt through holes 25a to 25c of the tooth handling body 51 according to the height thereof. Formed at the left and right ends.

  Further, the blade 25a is connected to the tooth handling body 51 with a bolt so as to overlap the adjacent blade 25a. Then, as shown in FIG. 12, the end of the blade 25a close to the rotational direction of the cylindrical body 24 comes into contact with the tooth handling body 51 and the end of the other blade 25a.

  Therefore, it is possible to prevent the transported crop from being caught by the end of the blade 25a and disturbing the transport.

  Further, the blade 25a on the front side in the rotational direction is located between the tooth handling body 51 and the blade 25a on the rear side in the rotational direction.

  Accordingly, the transported crop is less likely to be caught at the joint portion between the blade 25a and the blade 25a, so that the transport can be prevented from being disturbed, and the attached bolt can be reduced from being worn by the transported crop.

  In this way, the screw blade 25 is composed of a plurality of blades 25a, so even if the screw blades 25 need to be replaced due to breakage or deformation, only the necessary portions of the blades 25a are replaced. It is sufficient to improve maintainability.

  In addition, if the blades 25a are divided as shown in FIG. 11, the material removal efficiency of the blades 25a can be increased.

  Furthermore, it is possible to remove all the screw blades 25 so that only the tooth handling body 51 is used, and for example, it can be used for soybeans and the like.

  Furthermore, depending on the purpose, screw blades having different heights can be attached to the cylindrical body portion 24, so that the performance can be improved. For example, low screw blades 25 are attached to the first half of the cylindrical barrel 24 (cutting grain input side) to increase the threshing action, while the latter half of the cylindrical barrel 24 (discharge side) is high. By attaching screw blades 25 to improve transportability or removing all screw blades and using them for crops such as soybeans, it is very easy to form a barrel that suits the application by various combinations. .

  Since the screw blade and the tooth handling body are configured as described above, it is possible to remove the screw blade alone or the tooth handling body alone, thereby greatly improving workability and maintainability.

  Therefore, it is extremely easy not only to replace the screw blade in the case of breakage or deformation, but also to replace the low screw blade with the high screw blade and vice versa.

  In this embodiment, a bolt through hole is provided in the tooth handling body and the screw blade, and the bolt is fixed with the bolt. However, any configuration that can be connected is acceptable, and the configuration for the connection is for bolts. It is not limited to through holes. For example, if the female screw is screwed into each bolt through hole (forms a thread), the nut can be eliminated and the cost can be reduced.

Installation illustration of screw blades and tooth-handling body on the body Side view of the entire combine Top view of the entire combine Cross-sectional side view of threshing section Perspective view of tooth-handling body Partial front view showing the state of attachment of the tooth handling body to the trunk Partial front view showing the state of attachment of the tooth handling body to the screw blade Partial front view showing the state of attachment of the tooth handling body to the screw blade Bottom view of toothed body Screw blade installation drawing Perspective view of screw blade Partial bottom view showing the state of attachment of the tooth handling body to the screw blade

Explanation of symbols

A Combine 1 Machine frame 2 Travel crawler 3 Travel frame 4 Threshing section 5 Handle cylinder 25 Screw blade 51 Teeth handle

Claims (5)

In a combine equipped with a treatment cylinder having a helical screw blade and tooth treatment body on the outer peripheral surface of the trunk part,
The said screw blade is attached to the said trunk | drum detachably through the said tooth treatment body, The combine characterized by the above-mentioned.   The combine according to claim 1, wherein the screw blade is divided into a plurality of parts.   The tooth handling body supports a pair of tooth handling pieces facing the handling cylinder axis direction and standing up in the radial direction of the handling cylinder, and the pair of tooth handling pieces, and is detachably attached to the trunk section. The combine according to claim 1 or 2, further comprising a mounting piece for the purpose.   The combine according to any one of claims 1 to 3, wherein a reinforcing piece is interposed between the pair of tooth-treating pieces.   The combine according to any one of claims 1 to 4, characterized in that a low screw blade is attached to the cut grain input side of the handle and a high screw blade is attached to the discharge side.

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