JP4822878B2 - Combine - Google Patents

Description

  The invention of the present application includes a pre-cutting processing device that is mounted on a front portion of a traveling machine body so as to be adjustable by a lifting actuator, and a side divider that is provided on a lateral side extending from the pre-processing device to the traveling machine body. It relates to the combine that is provided.

  Conventionally, a combine is a cutting pretreatment device that is mounted on a front portion of a traveling machine body so that it can be moved up and down by a lifting actuator, and a side divider that is provided on a lateral side extending from the cutting pretreatment device to the traveling body body. It has.

  The side divider keeps the unmilled cereals facing outward (running) so that the traveling machine body that moves forward does not entrain the uncut cereals on one side of the side or stepping on the traveling crawler. It is for pushing away in the direction away from one side of the aircraft). For example, Patent Document 1 discloses an example of this type of side divider.

The side divider described in Patent Document 1 has a pair of front and rear weed ridges connected to bendable via a pivotal attachment portion, and a horizontally long connection rod connecting the pivotal attachment portion and the traveling machine body. The connecting rod is configured to be slidable in the longitudinal direction (lateral direction of the traveling machine body) by the sliding drive means. By moving the connecting rod to the left and right, the front and rear weeds can be automatically changed to a working posture that protrudes outward in the lateral direction and a storage posture that is close to the cutting pretreatment device and the traveling machine body. It has become. As drive means for sliding the connecting rod to the left and right, an electric motor and a rack and pinion mechanism capable of forward and reverse rotation are employed. In addition, a hydraulic cylinder or an air cylinder may be used.
Japanese Utility Model Publication No. 5-67229

  However, if the configuration of the prior art is adopted, the side divider has a complicated structure and the number of parts increases, so that the cost tends to increase. For this reason, it is understood that the side divider having such a structure is unsuitable for adopting, for example, a simple and inexpensive small combine, and lacks versatility.

  Accordingly, the first technical problem of the present invention is to provide a combine equipped with a side divider having a simple structure that can be manufactured at low cost by solving the problems of the prior art.

  By the way, in the combine, in order to facilitate maintenance of the pre-cutting processing device and the engine, the pre-cutting processing device is configured to be horizontally rotatable (that is, to be able to open and rotate) toward the outside of the traveling machine body. There is something. Of course, this type of combine also has a side divider.

  However, in this type of combine, since the side divider is often arranged on the lateral side on the side where the pre-treatment device for cutting is opened and rotated, the presence of the side divider remains in the way while it is attached, The pre-cutting processing device cannot be opened and rotated. For this reason, when opening and rotating the pre-cutting processing device, the connection between the pre-cutting processing device and the front weed pod must be released one by one, which is troublesome and cumbersome. It was.

  Therefore, the present invention has a second technical problem to provide a combiner that can open and rotate the pre-cutting processing device and that has a side divider that does not need to be attached or detached during maintenance. .

In order to achieve this technical problem, the invention of claim 1 includes a pre-cutting processing device that is mounted on a front portion of a traveling machine body so as to be adjustable up and down by a lifting actuator, and extends from the pre-cutting processing device to the traveling machine body. and a side divider provided in a horizontal side, the combine supporting the pretreatment device horizontally angularly movable reaper around a supporting shaft erected on the front left corner of the traveling machine body, the side divider includes a stretchable front partial grass rods, a structure comprising a rear partial grass rod, and an intermediate link lever having a base end portion in a horizontal side of the traveling machine body pivotally attached horizontally angularly movable A support arm is protruded outwardly and fixed to the left front portion of the traveling machine body, and a base end portion of the intermediate link rod is pivotally attached to a distal end portion of the support arm by a pivot pin for a base end portion. The tip of the intermediate link rod is connected to the tip pivot pin. While pivoting to the pivoting member, the front end portion of the rear weed cage and the rear end portion of the front weed cage can be pivoted to the pivoting member by the pivot pin for the weed bush. It is something that is pivotally attached to .

According to the configuration of the invention of the present application, the side divider has an effect that it can contribute to the reduction of the manufacturing cost while having a simple structure .

In particular, the presence of the side divider does not disturb the opening rotation of the pre-cutting device. Therefore, it is not necessary to attach and detach the side dividers at the time of maintenance of the pre-cutting processing apparatus or the like, and the workability at the time of maintenance can be improved.

  DESCRIPTION OF EMBODIMENTS Embodiments embodying the present invention will be described below with reference to the drawings (FIGS. 1 to 7). 1 is a side view of a combine to which the present invention is applied, FIG. 2 is a plan view of the combine, FIG. 3 is a schematic front view showing a support structure for a pre-cutting processing apparatus, and FIG. 4 is a diagram with some members omitted. 4 is a side view of the side divider, FIG. 6 is a plan view of the side divider when the cutting pre-treatment device is opened and rotated, and FIG. 7 is a view of the divider operating lever and the side divider. It is explanatory drawing which shows interlocking relationship.

(1). General Structure of Combine First, the general structure of the combine will be described with reference to FIGS. 1 and 2.

  The combine for three-row cutting in this embodiment includes a traveling machine body 1 supported by a pair of left and right traveling crawlers 2 and 2. At the front part of the traveling machine body 1, a pre-cutting processing device 3 that takes in while harvesting grains is mounted so as to be adjustable up and down by a single-acting hydraulic cylinder 30 (lifting actuator, see FIG. 4). A threshing device 4 with a feed chain 5 and a grain tank 6 for storing grain after threshing are mounted side by side on the traveling machine body 1. In the present embodiment, the threshing device 4 is disposed on the left side in the traveling direction of the traveling machine body 1, and the grain tank 6 is disposed on the right side in the traveling direction of the traveling machine body 1.

  A side divider 40 is provided on one lateral side (left side in the present embodiment) extending from the pre-cutting processing device 3 to the traveling machine body 1. The side divider 40 removes the uncut grain husk in the lateral direction so that the traveling machine body 1 that moves forward does not entrain the uncut grain potato on the side of the side or step on the traveling crawler 2 during the cutting operation. This is for pushing in the direction (the direction away from the one side of the traveling machine body 1).

  Between the pre-harvest processing device 3 and the grain tank 6, there is provided a driving unit 8 having a steering round handle 9 and a driving seat 10 for changing the direction and speed of the traveling machine body 1. A divider operation lever 19 (see FIGS. 2 and 7) as an operation means for switching the posture of the side divider 40 is provided on the side column 18 located on the left side of the driver seat 10 so as to be tiltable back and forth. An engine 11 as a power source is disposed below the operation unit 8. In order to transmit power from the engine 11 to the left and right traveling crawlers 2, 2 at an appropriate speed in front of the engine 11. A mission case 12 is arranged.

  The pre-harvest processing device 3 includes a clipper-type cutting blade device 13, a culm pulling device 14 for three strips, a culm conveying device 15, and a front weed body 16. The cutting blade device 13 is disposed below the weeding frame 33 constituting the pre-cutting processing device 3. The grain raising device 14 is disposed above the weed frame 33. The corn straw transporting device 15 is disposed between the corn straw pulling device 14 and the front end of the feed chain 5. The front weed body 16 protrudes in front of the lower part of the grain raising device 14. The harvested cereal grains harvested by the pre-harvest processing device 3 are transferred to the feed chain 5 and threshed by the threshing device 4.

  The handling room of the threshing device 4 has a built-in handling cylinder 17 for threshing the harvested cereal. Below the handling cylinder 17, there are arranged a swing sorting mechanism for performing swing sorting by a handling net, a chaff sheave or the like, and a wind sorting mechanism for performing wind sorting by a Kara fan. The grains collected by the first receiving bowl at the lower part of the traveling machine body 1 through the sorting by both the sorting mechanisms are accumulated in the grain tank 6 via the first conveyor and the cereal conveyor. The sawdust is sucked into a suction fan disposed at the rear of the threshing device 4 and then discharged from the discharge port to the outside of the machine. The grain in the grain tank 6 is carried out of the machine via the discharge auger 7.

  In addition, the waste inherited from the rear end of the feed chain 5 to the waste chain is discharged to the rear of the traveling machine body 1 in a long state, or after being cut to a short length as appropriate with a waste cutter, It is discharged behind the traveling machine body 1.

(2). Next, the structure of the pre-cutting processing apparatus will be described with reference to FIGS. 3 and 4.

  The pre-cutting processing device 3 is a vertical support shaft erected on the left front end (portion close to the side divider 40) of the body frame 20 in order to facilitate maintenance of the devices 13 to 15 and the engine 11 therein. It is comprised so that horizontal opening and closing rotation is possible centering on 21 (refer the dashed-two dotted line state of FIG. 5).

  In this case, a bracket device 22 is mounted on the vertical support shaft 21 so as to be horizontally rotatable, and the horizontally long cutting input pipe 23 is pivotable with respect to the bracket device 22 in a state in which it can rotate about its axis. It is supported. Note that a reinforcing member 24 (a hard shaft) that is inclined in a side view is fixed to the body frame 20 and the position of the vertical support shaft 21 in the bracket device 22 by welding.

  A bearing member 25 made of cast iron or the like is provided at the front end of the cutting input pipe 23 and the bracket device 22 (the end opposite to the vertical support shaft 21), while the front end of the body frame 20 is provided at the front end. A column member 26 protruding upward is erected at a position located below the bearing member 25 when the cutting pretreatment device 3 is in the closed state. When the pre-cutting processing device 3 is in the closed state, the bottom plate of the bearing member 25 is bolted to the upper plate of the support member 26. By fixing the bearing member 25 to the support member 26 in this way, the pre-cutting processing device 3 is held in a closed state.

  The cutting input pipe 23 incorporates a cutting input shaft 34 having a concentric posture. The tip of the cutting input shaft 34 projects outward from the cutting input pipe 23. A cutting input pulley 35 is fixed to the protruding end. A power transmission belt 36 is wound around a transmission pulley (not shown) fixed to the power transmission shaft of the transmission case 12 and the cutting input pulley 35. Power from the engine 11 via the transmission case 12 is transmitted from the power transmission shaft of the transmission case 12 to the cutting input shaft 34 in the cutting input pipe 23 via the pulley 35 and the belt 36 transmission system. Power is transmitted from 34 to the devices 13 to 15 of the pre-cutting processing device 3.

  A longitudinal transmission pipe 27 as a cutting frame extending diagonally forward and downward is attached to a midway portion of the cutting input pipe 23 through a gear box 28 fixed to the cutting input pipe 23. Therefore, the cutting input pipe 23 and the vertical transmission pipe 27 can be horizontally rotated around the vertical support shaft 21, and the vertical transmission pipe 27 can be rotated in the vertical direction around the cutting input pipe 23. It has become.

  As shown in FIG. 4, a bearing rib 29 protrudes downward from a longitudinal middle portion of the vertical transmission pipe 27, and a piston rod 30 a of a hydraulic cylinder 30 is formed on the left and right horizontally long pins 31 on the bearing rib 29. Are connected. Although not shown in detail, the rear end portion of the hydraulic cylinder 30 is connected to the body frame 20 so as to be rotatable by a pin.

  When the cutting pretreatment device 3 is opened and rotated, as a prerequisite work, the pin 31 connecting the hydraulic cylinder 30 and the longitudinal transmission pipe 27 is removed, and the transmission pulley (see FIG. (Not shown) and the belt 36 wound around the cutting input pulley 35 is removed.

  At the lower end of the vertical transmission pipe 27, a horizontally long horizontal transmission pipe 32 (see FIG. 2) is provided. A plurality of weed frames 33 protruding forward are arranged in parallel in the horizontal transmission pipe 32 at appropriate intervals along the longitudinal direction of the horizontal transmission pipe 32. A clipper type cutting blade device 13 is provided below the weeding frame 33. A front weed body 16 projects from the tip of each weed frame 33.

  In addition, a number of support pipes (not shown) corresponding to the number of cutting strips (not shown) are erected on the horizontal transmission pipe 32 so as to extend obliquely upward in the forward direction. The grain raising apparatus 14 is attached to the tip.

(3). Side Divider Structure Next, a detailed structure of the side divider will be described with reference to FIGS. 5 and 6.

  The side divider 40 is pivotally attached to a pair of front and rear weed ridges 41 and 42 that are connected to each other via a pivoting member 44 having a substantially U-shaped cross section and a pivoting member 44 so that the distal end of the side divider 40 can be horizontally rotated. And an intermediate link rod 43 pivotally attached to the lateral side of the traveling machine body 1 so as to be horizontally rotatable.

  Both the front and rear weed bushes 41 and 42 are formed by horizontally rotating the intermediate link rod 43 around the base end portion so as to project outward in the lateral direction (see the solid line state in FIGS. 2 and 5) and cutting. It is configured to be able to change its posture to a storage posture (see the two-dot chain line state in FIGS. 2, 5, and 6) close to the preprocessing device 3 and the traveling machine body 1.

  The front weed bush 41 is configured to be extendable in the axial direction (longitudinal direction) by a cylindrical rod 45 made of metal pipe and a metal rod-like rod 46 slidably inserted into the cylindrical rod 45. Yes. The front end portion of the cylindrical basket 45 is pivotally attached to the weeding frame 33 closest to the lateral side portion of the pre-cutting processing device 3 by a vertical pivot pin 47 so as to be horizontally rotatable. On the other hand, the rear end portion of the cylindrical rod 45 is pivotally attached to a pivot member 44 having a substantially U-shaped cross section by a pivot pin 48 that is vertically oriented.

  The rear weed rod 42 is made of metal and is in the shape of a long bar, and the front end of the rear weed rod 42 rotates together with the rear end of the rod-shaped rod 46 in the front weed rod 41 with a common pivot pin 48 to the pivot member 44. It is pivotally possible. A ring member 49 is fixed to the rear end portion of the rear weed ridge 42, and this ring member 49 is fitted (freely fitted) on a longitudinal guide rail 50 fixed to one lateral side of the traveling machine body 1. Has been. Thus, the rear end portion of the rear weed ridge 42 is supported by the lateral one side portion of the traveling machine body 1 so as to be slidable back and forth.

  The intermediate link rod 43 connects the pivoting member 44 between the front and rear weed rods 41 and 42 and the horizontal side portion of the traveling machine body 1, and the tip portion thereof is the rear end portion of the rod-shaped rod 46. In the same manner as the front end portion of the rear weed ridge 42, it is pivotally attached to the pivot attachment member 44 by a pivot pin 51 which is oriented vertically.

  On the other hand, a support arm 52 that protrudes outward in the lateral direction is fixed to a front side portion (left front portion in the present embodiment) of the machine body frame 20. The base end portion of the link rod 43 is pivotally attached by a pivot pin 53 that is vertically oriented.

  When the intermediate link rod 43 is horizontally rotated in the direction of arrow A (see FIGS. 5 and 7) away from the traveling machine body 1 around the pivot pin 53 on the proximal end side, the position of the pivot attachment member 44 is seen in plan view. Therefore, the front weed fence 41 shortens its entire length while horizontally turning in a direction away from the traveling machine body 1 around the pivot pin 47 on the front end side of the cylindrical basket 45. The rear weed rod 42 slides the ring member 49 on the rear end side toward the front side of the traveling body 1 around the pivot pin 48 common to the front weed rod 41 in the pivoting member 44. It rotates horizontally.

  As a result, the front and rear branch weeds 41 and 42 are in a working posture (see solid line states in FIGS. 2 and 5) projecting outward in the lateral direction while being bent in a generally letter-like shape in plan view.

  Conversely, when the intermediate link rod 43 horizontally rotates in the direction of arrow B (see FIGS. 5 and 7) approaching the traveling machine body 1 around the pivot pin 53 on the proximal end side, the position of the pivot attachment member 44 is viewed in plan view. Thus, the front weed rod 41 extends its entire length while horizontally turning in the direction approaching the traveling vehicle 1 around the pivot pin 47 on the front end side of the cylindrical rod 45. The rear weed rod 42 is horizontal while sliding the ring member 49 on the rear end side toward the rear side of the traveling body 1 around the pivot pin 48 common to the front weed 41 in the pivoting member 44. Rotate.

  As a result, the front and rear split weed ridges 41 and 42 are stored in the storage posture adjacent to the pre-cutting device 3 and the traveling machine 1 in a state of being arranged in a substantially straight line (see the two-dot chain line states in FIGS. 2, 5, and 6). Return to). In this case, the front weed fence 41 and the intermediate link fence 43 are positioned side by side (in parallel).

  Further, when the front and rear cutting weeds 41 and 42 are in the stowed posture, if the pre-cutting processing device 3 opens and rotates around the vertical support shaft 21, the postures of the intermediate link rod 43 and the rear weeding rod 42 are maintained as they are. However, the front weed basket 41 is connected to the pre-cutting processing device 3 in the direction of the arrow C (see FIG. 6) which is the same as the opening rotation direction thereof, and the pivot pin common to the rear weed basket 42 in the pivot attachment member 44. While rotating horizontally around 48, its total length is shortened.

  For this reason, the presence of the side divider 40 does not obstruct the opening rotation of the pre-cutting processing device 3, and even if the connection between the pre-cutting processing device 3 and the front weed basket 41 is not released, the cutting is performed. The pretreatment device 3 can be opened and rotated largely and smoothly.

  Even when the front and rear split weed baskets 41 and 42 are in the working posture, if the pre-cutting pretreatment device 3 opens and rotates around the vertical support shaft 21, the front weed fence 41 performs the same operation as described above. The presence of the divider 40 does not interfere with the opening rotation of the pre-cutting processing device 3.

(4). Configuration of Operation Unit Next, a configuration of the operation unit for switching the attitude of the side divider will be described with reference to FIG.

  The divider operation lever 19 as an operation means is pivotally attached at its lower end portion so as to be pivotable back and forth by a lever shaft 61 that is laterally directed to the mounting stay 60 in the side column 18. At the lower end of the divider operation lever 19, a plate-like divider operation plate 62 that is long in the front-rear direction is provided so as to rotate integrally around the lever shaft 61 together with the divider operation lever 19.

  One end of the divider operation plate 62 is connected to one end of the L-shaped plate 63 fixed to the intermediate link rod 43 of the side divider 40 by a first operation wire 64. The other end of the divider operation plate 62 is connected to the other end of the L-shaped plate 63 in the intermediate link rod 43 by a second operation wire 65.

  A switching coil spring 66 is mounted between the corner portion of the L-shaped plate 63 and the support arm 52 fixed to the body frame 20 as posture holding means for holding the posture of the intermediate link rod 43.

  When the divider operating lever 19 is tilted backward to the working position shown by the solid line in FIG. 7, the first operating wire 64 is pulled by the rotation of the divider operating plate 62 around the lever shaft 61, and the L-shaped plate 63 is moved to the intermediate link shaft. 43 is horizontally rotated around the pivot pin 53 on the proximal end side in the direction of arrow A. At this time, the switching coil spring 66 exceeds the fulcrum and pulls and biases the intermediate link rod 43 to the posture protruding laterally outward, so that the front and rear grass rods 41 and 42 are in the working posture.

  The pulling urging force of the switching coil spring 66 beyond the fulcrum maintains the intermediate link rod 43 and thus the side divider 40 in the working posture. For this reason, even if an uncut grain stalk hits the side divider 40 at the time of cutting work, the side divider 40 does not return to the stored posture due to the pressing force of the uncut grain culm.

  When the divider operation lever 19 is tilted forward to the cutting position indicated by a two-dot chain line in FIG. 7, the second operation wire 65 is pulled by the rotation of the divider operation plate 62 around the lever shaft 61, and the L-shaped plate 63 is in the middle. The link rod 43 is horizontally rotated around the pivot pin 53 on the proximal end side in the direction of arrow B. At this time, the switching coil spring 66 exceeds the fulcrum and pulls and biases the intermediate link rod 43 to the posture close to the traveling machine body 1, and as a result, the front and rear grass rods 41 and 42 are brought into the storage posture. .

(5). Operation and Effects According to the above configuration, the side divider 40 can be horizontally rotated with the pair of front and rear weed ridges 41 and 42 connected to each other via the pivot member 44 and the pivot member 44. The intermediate link rod 43 has a simple structure including an intermediate link rod 43 pivotally attached to the lateral side portion of the traveling machine body 1 so as to be pivotable horizontally. By simply turning horizontally, the working posture can be extended laterally outward when in use (at the time of cutting), and the storage posture can be close to the pre-cutting device 3 and the traveling machine body 1 when not in use.

  That is, the side divider 40 that can be easily switched between the working posture and the storage posture can be manufactured at a low cost, and as a result, the manufacturing cost of the combine can be reduced. The side divider 40 having such a structure is suitable for use in, for example, a simple and inexpensive small combine.

  Further, when the pre-cutting processing device 3 is configured to be opened and rotated as in the present embodiment, when the pre-cutting processing device 3 is opened and rotated, the pre-cured culm 41 is combined with the pre-cutting processing device 3. Since the entire length of the pivoting member 44 is horizontally rotated around the pivot pin 48 of the pivoting member 44 in the direction of the arrow C, the overall length of the pivoting member 44 is shortened. There is no. For this reason, it is not necessary to attach and detach the side divider 40 one by one during maintenance of the pre-cutting processing device 3 and the engine, and workability during maintenance can be improved.

(6). Others The present invention is not limited to the above-described embodiment, and can be embodied in various forms. For example, the structure of the weed folds is not limited to the front weed ridge 41 and the rear weed 42 being slid as in this embodiment, but both the front and rear weed 41 and 42 are expanded and contracted. It may be a formula.

  Although it is possible to make the front weed basket 41 to be a slide type, when the connecting part between the front weed 41 and the pre-cutting processing device 3 moves backward, the uncut wheat straw is caught in the traveling machine body 1 and the traveling crawler 2. Since the possibility increases, it is not so preferable.

  In addition, the configuration of each unit is not limited to the illustrated embodiment, and various modifications can be made without departing from the spirit of the present invention.

It is a side view of a combine to which the present invention is applied. It is a top view of a combine. It is a schematic front view which shows the support structure of a cutting pretreatment apparatus. FIG. 4 is a side view taken along the line IV-IV in FIG. 3 with some members omitted. It is a top view of a side divider. It is a top view of a side divider when the cutting pretreatment apparatus is opened and rotated. It is explanatory drawing which shows the interlocking relationship of a divider operation lever and a side divider.

DESCRIPTION OF SYMBOLS 1 Traveling machine body 2 Traveling crawler 3 Cutting pretreatment apparatus 18 Side column 19 Divider operation lever 20 Machine body frame 21 Vertical support shaft 40 Side divider 41 Front weed rod 42 Rear weed rod 43 Intermediate link rod 44 Pivoting member 45 Cylindrical rod 46 Rod-shaped rod 47, 48, 51, 53 Axis pin 49 Ring member 50 Guide rail

Claims (1)

A pretreatment apparatus mowing that is elevating adjustably mounted at the lift actuator to the front of the vehicle body, and a side divider provided in a horizontal side across the traveling machine body from the cutting pretreatment device, the travel In the combine that supports the cutting pre-treatment device so as to be able to rotate horizontally around the support shaft erected on the left front end of the machine body ,
It said side divider includes a stretchable front partial grass rod, and back component grass rods, a structure comprising an intermediate link lever of the horizontal one side to the base end portion is pivotally mounted horizontally angularly movable in the traveling machine body There,
A support arm is protruded outwardly and fixed to the left front portion of the traveling machine body, and a base end portion of the intermediate link rod is pivotally attached to a distal end portion of the support arm by a pivot pin for a base end portion. In addition, while pivotally attaching the tip of the intermediate link rod to a pivoting member with a pivot pin for the tip, the front end of the rear weed cage and the rear end of the front weed cage, A combine characterized in that it is pivotally attached to the pivot attachment member by a pivot pin for weeding .

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