JP4594722B2 - Combine harvester - Google Patents

Description

  The present invention relates to a combine grain recovery device configured to store and recover a grain that has been carried out of a threshing device using a kernel tank.

As said grain collection | recovery apparatus, as disclosed by patent document 1, for example, the grain collection | recovery tank which stores the grain carried out from the threshing apparatus is carried out, and the stored grain is carried out to the lower part of an unloader. Some have a bottom case in which a bottom screw is horizontally supported and a resin tank body that is detachably connected to the bottom case.
JP 2003-92918 A

  This grain recovery device is designed to make it easy to maintain various mechanisms between the threshing device and the grain recovery tank by removing the tank body. Although it is useful as a device, the lower case may be a hindrance to the maintenance of the lower portion of the lateral side of the threshing device because the lower case is fixedly arranged even after the tank body is removed.

  Although the tank body is made of resin material and reduced in weight, it is a large member with considerable weight, and it is not suitable for elderly people, ladies and women, or workers with small physiques. Removing and inserting from the lower case or inserting it into the lower case has been a laborious and difficult task.

  The present invention has been made paying attention to such points, and the main object is to make the tank main body detachable grain recovery device more excellent in handleability and maintainability, Another object is to make it easier to handle.

A first aspect of the present invention relates to a lower case in which a bottom screw for horizontally transporting a stored grain to a lower portion of an unloader is horizontally supported, and a detachment to and from the kernel. It is a combine grain recovery device composed of a tank body that is freely connected,
The tank body is configured to be able to lie down on the outer side of the machine body via a locking bar provided on the lower case side and a hook-shaped locking part provided on the tank body side,
In the connected state where the tank body stands upright, the locking part is in a sideways state so that the opening of the locking part regulates the vertical movement of the tank body, and the tank body is laid down and the upper part is grounded Then, the opening of the locking portion is formed so as to face downward, and the locking portion is configured to be detachable upward from the locking rod on the lower case side in the sideways state .

  According to the above configuration, when performing maintenance of various mechanisms between the threshing device and the grain recovery tank, the tank body is once laid down outwardly from the locking portion as a fulcrum, and then the locking is released by releasing the locking. The tank body is separated from the lower case, and the side face of the threshing device is opened widely. In this case, a large force is not necessary for the tank body to be laid down, and a particularly large force is not required for the tank body, which has been tilted down and placed at one end on the ground, to be removed from the lower case.

Therefore, according to 1st invention, the tank main body detachable type grain collection | recovery apparatus was made more excellent in the handleability and maintainability.

According to a second invention, in the first invention,
An upper handle is provided at an upper portion of the tank body on the inner side of the machine body.

  According to the above configuration, when the tank body is laid down, the upper handle is exposed above the tilted tank body, and the tank body can be separated from the lower case by holding the upper handle.

According to a third invention, in the second invention,
A lower handle is provided at a lower portion of the tank body on the inner side of the machine body.

  According to the above configuration, when the tank body is laid down, the upper handle and the lower handle are exposed above the tank body in the lying position, and the tank body can be lifted by holding both of these handles.

According to a fourth invention, in the third invention,
The upper handle and the lower handle are arranged substantially diagonally with respect to the tank body.

  According to the above-described configuration, the tank body can be lifted in a well-balanced manner without losing the posture while holding the handles and lying down.

According to a fifth invention, in the third or fourth invention,
The lower handle is arranged on an inclined wall portion for guiding the grain flow formed in a concavity at the bottom of the tank body.

  According to the above configuration, in a state where the tank body is connected and erected to the lower case, the lower handle is concealed in the space below the inclined wall portion of the tank body and interferes with the threshing device and nearby structures. Or too close.

  1 and 2 show a side surface and a plane of a self-removing combine equipped with a grain recovery device according to the present invention, respectively. This combine is connected to a front part of a traveling machine body 2 provided with a pair of left and right crawler traveling devices 1, and a cutting part 3 having a two-row cutting specification is connected to be movable up and down, and is not shown on the right front part of the traveling machine body 2. A driving unit 4 and an operating unit 5 equipped with an engine are arranged, and a threshing device 6 is mounted on the left side of the traveling machine body 2 and a tank is stored at a location on the right side of the threshing device 6 on the rear side of the operating unit 5. It has a structure in which a type of grain recovery device 7 is provided. The cereals harvested by the reaping unit 3 are supplied to the threshing device 6 for threshing, and the grains selected and collected by the threshing device 6 are lifted by the screw-type cerealing device 8 to the grain collecting device 7. While being put into the provided grain tank 9 from the top, the waste straw carried out from the threshing device 6 is shredded by the waste straw cutter 10 and released to the field.

  The grain collection tank 9 in the grain collection device 7 is composed of a lower case 11 having a sheet metal structure opened upward, and a resin tank body 12 detachably connected to the case. A screw-type unloader 13 is disposed behind the grain collection tank 9 and then transported laterally and carried out of the machine after the stored grains are lifted.

  The lower case 11 is configured by connecting a front plate 11f and a rear plate 11r before and after a bottom plate 11b formed in a substantially V shape, and the stored grain is conveyed backward in the inside thereof. A bottom screw 14 that is fed and conveyed to the lower end of the unloader 13 is supported horizontally in the front-rear direction, and has a chevron cross-sectional shape extending above the bottom screw 14 on a support shaft 15 that is supported across the front plate 11f and the rear plate 11r. A flow guide plate 16 is attached. In addition, on the outside of the machine body of the bottom plate 11b, there is provided an outlet 17 with a slide shutter that is used when the stored grain is directly taken out and packed in a bag.

  The tank body 12 is inclined so that the lower portions of the left and right side walls thereof are linearly connected to the bottom plate 11 b of the lower case 11, and fitted into the opening end of the lower case 11 in the lower end opening of the tank body 12. A joint portion 12a is formed. In addition, a transparent window 18 made of a transparent resin material is attached to the upper part of the front wall of the tank body 12, in order to ensure the strength of the tank front wall while increasing the window area and improving the internal visibility. The see-through window 18 is formed in a shape bulging outward. In addition, an upper lid 19 that can be lifted and lifted by lifting the front end side is attached to a front side portion of the upper wall of the tank body 12, and a buckle-type hanging bracket 20 is provided. The hook 20 is for connecting the discharge case 8a provided at the upper end of the cerealing device 8 and the connection port 21 of the tank body 12 without leakage of the grain, and is attached to the discharge case 8a. It is hooked on the provided locking bracket 22.

  A pair of front and rear metal locking portions 23 formed in a hook shape are connected to the lower portion of the right side wall of the tank body 12 and the locking portion 23 is connected to the upper right side of the lower case 11. The mating support locking rod 24 is erected and fixed along the front-rear direction, and the tank body 12 can be turned laterally outward using the engagement point between the locking portion 23 and the locking rod 24 as a fulcrum. It has become.

  Here, a handle used when the tank body 12 is raised and lowered with respect to the lower case 11 is provided at an appropriate position of the tank body 12. That is, a horizontal handle 25 is attached to the upper part of the tank body 12 in the lateral direction, and an upper handle 26 and a lower handle 27 are attached to the upper part and the lower part of the tank body 12 on the inner side. Has been.

  The horizontal handle 25 is mainly used when the tank body 12 is raised and lowered with respect to the lower case 11, and after the hanging bracket 20 is removed from the locking bracket 22, the lateral handle 25 is held outside the aircraft body. The tank main body 12 is turned sideways outward with the engaging point of the locking portion 23 and the locking rod 24 as a fulcrum, and if necessary, the tank main body 12 is moved to the upper handle 26 and the tank main body 12 is moved. Can be greatly defeated. In this case, in the connected state in which the tank main body 12 stands, the opening of the locking portion 23 is sideways, and the upward movement of the tank main body 12 is prevented by the locking portion 23 being caught by the locking rod 24. ing. When the tank body 12 is largely laid down, the opening of the locking portion 23 faces downward, and the lower portion of the tank body 12 in a sideways posture is lifted to disengage the locking portion 23 from the locking rod 24, so that the tank body 12 can be removed from the lower case 11.

  In the state where the tank body 12 is laid down as described above, the upper handle 26 and the lower handle 27 are exposed above the tank, and the lower part of the tank body 12 is lifted by the lower handle 27 to engage the locking portion 23. After detaching from the stop rod 24, two workers can carry out with the upper handle 26 and the lower handle 27.

  Here, as shown in FIG. 3, the upper handle 26 and the lower handle 27 are arranged in a substantially diagonal shape with respect to the tank body 12, and the tank in a sideways posture is lifted by holding both handles 26, 27. The main body 12 can be transported in a balanced manner without tilting.

  Further, the lower handle 27 is disposed on the inclined wall portion 12b for grain flow guidance inside the machine body formed at the lower portion of the tank body 12, and in a state where the tank body 12 is connected and erected to the lower case 11, The lower handle 27 is hidden behind the inclined wall portion 12b and does not interfere with the threshing device 6 or a nearby structure.

  The unloader 13 includes a screw-type vertical conveyance unit 13A connected to the rear end of the bottom screw 14, and a screw-type horizontal conveyance unit 13B connected to the upper end of the vertical conveyance unit 13A so as to swing up and down. The unloader 13 is generally turnable within a predetermined angle range about a vertical axis P that is a screw axis of the vertical conveying unit. The turning drive of the unloader 13 is performed by an electric motor (not shown), and the up-and-down swinging drive of the lateral transfer unit 13B is performed by the cylinder 29, respectively.

  As shown in FIGS. 3 and 9, a carry-out case 31 that pivotally supports the rear end of the bottom screw 14 is connected to the rear end of the lower case 11, and concentric with the vertical axis P on the body frame 30. The lower end of the carry-out case 31 is rotatably fitted on a fulcrum shaft 32 erected on the fulcrum, and the lower case 11 is supported so as to be rotatable about the vertical axis P. An input case 33 that pivotally supports the front end portion of the bottom screw 14 is attached to the front plate 11 f of the lower case 11, and the lower end portion of the front plate 11 f is placed on the upper surface of the body frame 30 with bolts 34. The lower case 11 can be turned by removing the bolt 34.

  As shown in FIG. 10, the input case 33 is provided with a pair of bevel gears 35 and 36 for transmitting power to the front end of the bottom screw 14, and the input bevel gear 35 is provided with a lateral piece disposed on the machine body side. The tip of the holding transmission shaft 37 is inserted. The transmission shaft 37 is inserted and supported so as to be slidable in the axial direction by a pulley 39 linked to the driving portion 4 via a belt transmission mechanism 38 with a tension clutch, and is slidably biased to the outer end side by a spring 40. It is configured as a hexagonal shaft. Therefore, when the lower case 11 is pivoted and swung laterally outward, the input case 33 is automatically detached from the transmission shaft 37, and when the lower case 11 is returned to the predetermined grain recovery position, transmission is performed. The tip of the shaft 37 is automatically inserted into the central hexagonal hole of the input bevel gear 36. If the rotational phase of the transmission shaft 37 and the input bevel gear 35 does not match when the lower case 11 is turned back to the predetermined grain collection position, the transmission shaft 37 is inserted into the central hexagonal hole of the bevel gear 35. When the transmission shaft 37 is rotated with the tension clutch of the belt transmission mechanism 38 inserted and rotated against the spring 40 without any rotation, the transmission shaft 37 is urged and slid when the rotational phase is matched. The power is transmitted by automatically engaging and inserting into the hexagonal hole.

In addition, an eccentric cam 41 integrally connected to the output bevel gear 36 is disposed on the front side of the input case 33, and an operation arm 42 is fixed to the front end of the support shaft 15 provided with the flow guide plate 16 below. The eccentric cam 41 is engaged with the long hole 42a formed in the above. Accordingly, when the output bevel gear 36 is driven to rotate in a certain direction and the bottom screw 14 is fed, the eccentric cam 41 rotates, and the support shaft 15 is reciprocally rotated at a small angle via the operation arm 42. As a result, the flow guide plate 16 is reciprocally swung, and the interval of the grain flow passage formed between the left and right ends of the flow guide plate 16 and the lower case bottom plate 11b is repeatedly changed, and clogging is caused by the bridge phenomenon. Grain flows down smoothly and is transported laterally without occurrence.

  When the grain collection tank 9 having the above-described configuration is in the regular collection position, a decorative cover 45 is detachably attached to the lateral outer side of the lower part of the tank so as to adjust the tank appearance. A pair of latches 46 are mounted on the front and rear of the upper surface of the decorative cover 45, and a pair of hooks 47 having different protruding lengths are mounted on the front and rear of the lower surface of the decorative cover 45. Is inserted and locked in the slit 48 formed on the side of the front plate 11f in the lower case 11, and the rear hook 47 is locked from above to the pin 49 attached to the rear plate 11r in the lower case 11. By swinging the decorative cover 45 to the tank side with the locking part as a fulcrum, the front and rear locking tools 46 are automatically elastically engaged with the loop-shaped locking bracket 50 attached to the lower case 11, A decorative cover 45 is attached and fixed. When removing the decorative cover 45, first, the handle outside the cover is operated to remove the locking tool 46 from the locking bracket 50, and then the decorative cover 45 is moved to remove the hook 47 from the slit 48 and the pin 49. Will be removed.

  [Other Examples]

As a means for fixing the lower case 11 that can be turned on the body frame 30, a lock pin that can be lifted upward is provided at a front outer portion of the lower case 11, and the lock pin is mounted on the upper surface of the body frame 30. It is also possible to adopt a structure that is inserted into the lock hole formed in the above.

Combine side view Overall plan view of combine Side view of grain recovery device Front view of grain recovery device Front view showing the grain recovery device with the tank body tilted Front view showing the grain recovery device in a state where the tank body is grounded over and over Front view showing the grain recovery device with the tank body separated Longitudinal front view showing the lower part of the grain tank Plan view showing the lower case in the grain tank Front view with part of the bottom screw drive structure cut out Transverse plan view showing part of bottom screw drive structure

9 Grain recovery tank 11 Lower case 12 Tank body 12 Tank body 12b Inclined wall portion 13 Unloader 14 Bottom screw 23 Locking portion P Vertical support point

Claims (5)

A bottom case in which a bottom screw for horizontally transporting the stored grain to the lower part of the unloader is horizontally supported, and a tank that is detachably connected to the grain recovery tank that stores the grain transported from the threshing device A combine harvester configured with a main body,
The tank body is configured to be able to lie down on the outer side of the machine body via a locking bar provided on the lower case side and a hook-shaped locking part provided on the tank body side,
In the connected state where the tank body stands upright, the locking part is in a sideways state so that the opening of the locking part regulates the vertical movement of the tank body, and the tank body is laid down and the upper part is grounded In the combine, the opening of the locking portion is formed so as to face downward, and the locking portion is configured to be detachable upward from the locking rod on the lower case side in the sideways state. Grain recovery equipment. The combine grain recovery device according to claim 1 , further comprising an upper handle at an upper portion of the tank body on the inner side of the machine body. The combine grain recovery device according to claim 2 , wherein a lower handle is provided at a lower portion of the tank body on the inner side of the machine body. The combine grain recovery device according to claim 3, wherein the upper handle and the lower handle are arranged substantially diagonally with respect to the tank body. The combine grain recovery device according to claim 3 or 4 , wherein the lower handle is disposed on an inclined wall portion for guiding the grain flow formed in a concavity in the lower part of the tank body.

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