JP6002492B2 - Combine grain side discharging device - Google Patents

Description

  The present invention relates to a combine grain side discharging device.

  Conventionally, a general-purpose combine grain tank that stores beans (grains) such as soybeans supplied from a threshing unit is stored by a grain side discharge device (elevator) erected along the outer wall of the tank. It is configured so that the grains are lifted and discharged from the discharge hopper to the outside of the machine (see, for example, Patent Document 1 (page 4, FIG. 7)). The above-mentioned combine grain tank rotates around (inclined) the grain storage work posture for storing the grain from the threshing part and the outside of the machine body, centering on the horizontal conveyor pivotally supported on the machine base (machine frame body) side It is provided so that it can be switched and rotated to the maintenance work posture. And the grain side discharging device whose upper and lower parts are mounted and supported along the outside of the Glen tank is provided with its lower mounting means protruding outward from the lower side of the tank outer wall formed of a thin plate member. It is set as the structure supported by a mounting base (attachment member).

Japanese Patent No. 4313275

  The grain tank of the combine shown in the above-mentioned patent document 1 is driven by a drive device (transmission structure) through a space portion opened to a maintenance work posture by rotating to the outer side (right side) of the machine body around a horizontal conveyor. ), Etc., but when the Glen tank is rotated greatly to widen the space, the weight of the grain side discharge device is deformed by inflating the outer wall of the tank downward via the mounting base. It works to let you. Therefore, there is a drawback that a reinforcing structure for reinforcing structural members such as the outer wall of the tank and the mounting base for preventing this deformation is complicated and expensive. Also, as the Glen tank is turned sideways, the mounting base will be greatly lowered, so that it is restricted by the turning range in order to avoid contact with the ground or other objects, or the grain side discharging device in advance. There is a problem that the Glen tank has to be rotated laterally after removing.

In order to solve the above-described problem, the grain lateral discharge device of the combine according to the present invention pumps the stored grains along the tank outer wall 16 of the Glen tank 5 that stores the grains supplied from the threshing unit 6. In the grain side discharging device of the combine in which the grain side discharging device 1 to be released to the outside of the machine is erected and the grain side discharging device 1 is fixedly supported by the grain tank 5, the grain tank 5 the vertical axis 11 pivot point switching rotatably provided only been in the grain storage working position and the maintenance position side and grain tank 5 and grain side discharge device 1 and is integral but is erected on the body frame 2 The horizontal mounting piece 36a and the vertical mounting piece 36b are configured to be horizontally rotatable together and are respectively brought into contact with the upper surface and the side surface of the frame member 2b of the machine body frame 2 at the lower part of the grain side discharging device 1. An inverted L-shaped attachment member 36 is provided, The lower portion of the grain side offtake device 1 via the mounting member 36 is attached to the frame member 2b detachably, by providing the guiding portion 36c which is inclined upwardly to the tip portion of the lateral attachment pieces 36a, grain tank When 5 is returned from the maintenance work posture side to the grain storage work posture, the attachment member 36 is engaged and guided to the frame member 2b via the guide portion 36c, and the attachment member 36 is in contact with the frame member 2b. Thus, in the grain storage work posture in which the frame member 2b and the attachment member 36 are fastened with bolts 39, the grain side discharge device 1 is fixedly supported by the body frame 2 .

According to the present invention, grain tank is mounted for switching rotated in the grain storage working position and the maintenance position side fulcrum vertical shaft which is erected on the machine frame, grain tank and grain side A horizontal mounting piece and a vertical mounting piece which are configured so as to be integrally rotatable with the side discharging device and are respectively brought into contact with the upper surface and the side surface of the frame member of the fuselage frame at the lower part of the grain side discharging device. An inverted L-shaped attachment member is provided, and the lower part of the grain lateral discharge device is detachably attached to the frame member via the attachment member, and the guide is inclined upward at the tip of the lateral attachment piece When the Glen tank 5 is returned from the maintenance work posture side to the grain storage work posture by providing the portion, the attachment member is engaged and guided to the frame member via the guide portion, and the attachment member is brought into contact with the frame member. Let it go In, grains and a frame member and the mounting member in the grain storage working position obtained by bolts fastened, with the construction in which the grain side discharge device is fixedly supported on the machine frame, a grain tank a maintenance position When returning to the storage work posture, an inverted L-shaped attachment member can be engaged with and guided to the grain storage work posture via the guide portion and attached to the frame member. Therefore, the grain lateral discharge device can be supported on the frame member with increased mounting rigidity without placing a heavy burden on the side wall of the grain tank, etc. during the grain storage work posture, and up and down and left and right directions due to machine vibration Can also be prevented. In addition, the Glen tank can efficiently switch between the grain storage work posture and the maintenance work posture, with the grain side discharging device attached through the connection and separation of the attachment members, with the vertical axis as the center. In addition, the Glen tank in the maintenance work posture can be easily returned to the grain storage work posture because the mounting member can be matched with the frame member only by being pushed in the return direction.

It is a side view of a combine. It is a top view of a combine. It is a front view which shows the structure of a grain tank and a grain side discharge apparatus partly broken. It is a perspective view which shows the installation structure of a grain side discharge apparatus. It is sectional drawing which shows the effect | action of the attachment member of a grain side discharge apparatus.

  Embodiments of the present invention will be described with reference to the drawings. A symbol A shown in the figure is a general-purpose combine equipped with a grain side discharging device 1 according to the present invention. A grain tank (a grain storage part) 5 having a steering part 3 surrounded by a cabin 3a, a motor part 4 on which an engine is mounted, an auger apparatus 5a for grain discharge and a grain side discharge apparatus 1 described later. Are arranged in the front-rear direction. Further, a threshing type threshing portion 6 is disposed at the left side position of the machine body frame 2, and the reaping portion 9, the transport portion 10, and the like are supported at a position in front of the threshing portion 6 so as to be movable up and down. It is installed to adjust the cutting height of crops. As a result, the crop planted in the field is harvested by the harvesting unit 9, the harvested crop is conveyed to the threshing unit 6 via the conveyance unit 10, and the grains threshed and sorted by the threshing unit 6 are supplied to the glen tank 5. Store.

  The combine A in the illustrated example cuts and supplies beans cereals (planted cereals) such as soybeans and red beans planted in the field by the reaping unit 9 to the threshing unit 6, and the grains threshed by the threshing unit 6 From the first conveyor at the lower part of the threshing section (not shown), the pump is fed to the Glen tank 5 through the mashing conveyor and stored. In the Glen tank 5, grains such as beans are pumped to the outer side (right side) of the Glen tank 5 in addition to the auger device 5 a installed on the rear side of the machine body in the same manner as a conventional general purpose combine. A bucket conveyor type grain side discharging device (elevator) 1 for discharging is provided. Thereby, when discharging grains, such as beans, stored in the Glen tank 5, using the above-mentioned grain side discharging device 1, for a loading platform such as a truck that waits in a place adjacent to the machine body It can be discharged and supplied.

  On the other hand, in the combine A provided with the Glen tank 5 configured as described above, when harvesting and threshing the planted cereal such as rice wheat, the inside of the Glen tank 5 as shown in Patent Document 1 above. In addition to the above, the inside of the tank is vertically divided to remove the shelf plate that guides the grains down to the grain outlet, and if necessary, the grain outlet structure having a shutter, and the grain side discharge After removing the device 1 and the like, the specification of the grain tank 5 for storing rice grain is changed, and then the combine operation of the rice and wheat is performed, and the grain discharge in the grain tank 5 is performed by the auger device 5a. The Glen tank of the above-mentioned patent document 1 is rotated around the outer side (right side) of the machine body around an auger type horizontal conveyor disposed at the bottom of the tank, and through a space portion opened to a maintenance work posture. The threshing unit 6 and various transmission structures are configured to perform maintenance work.

  The Glen tank 5 according to the present embodiment supports and supports a vertical auger 11 standing on the rear side of the tank in communication with the horizontal conveyor 12 as a vertical axis for mounting the Glen tank. It is installed so that it can be switched and rotated toward the outside. That is, the Glen tank 5 is threshed from the grain storage work posture in which the grains shown by solid lines in FIGS. 1 and 2 are stored by rotating horizontally to the outside of the machine as shown by the dotted line with the vertical auger 11 as a fulcrum. The side of the part 6 is widely opened, so that the maintenance work posture can be switched reversibly. When the Glen tank 5 is switched to the maintenance work posture as described above, first, as will be described later with reference to FIG. 4, the drive belt 13 of the horizontal conveyor 12 of the transmission mechanism provided at the front of the tank is removed, and the lower part of the tank and the fuselage frame By releasing the operation lever 14 of a fixing mechanism (not shown) for releasably fixing to the vertical auger 11, the vertical auger 11 can be pivoted outward from the machine body.

  As shown in FIGS. 3 and 4, the Glen tank 1 is detachably equipped with a shelf 15 that covers the upper side of the horizontal conveyor 12 installed in the lower part of the tank. The right side wall 16 of the tank is detachably attached with a side wall 19 on which a grain outlet 19a facing the flow bottom of the shelf 15 is formed. The take-out side wall 19 will be described later to allow the grain take-out outlet cylinder portion 17 to communicate the grain take-out port 19a and the flow trough 20 provided in the grain side discharge device 1 and to open and close the grain take-out port 19a. A flat shutter 21 having an opening / closing mechanism is provided. When this grain tank 5 is used for rice grain, after removing the take-out side wall 19, a flat side wall of the same size not having the grain take-out outlet portion 17 or the like is used instead. It is used after changing specifications by mounting.

  The shutter 21 and its opening / closing mechanism will be described with reference to FIG. First, the shutter 21 is slidably inserted into a rail 22 arranged in the front-rear direction along the top and bottom of a grain outlet 19 a opened in the extraction side wall 19, and its opening / closing operation is attached to the extraction side wall 19. The shutter 21 is opened and closed by meshing the pinion gear 25 and the rack gear 26 by rotating the motor 24 forward and reverse by operating the shutter switch 23 ON / OFF. That is, the shutter 21 made of a rectangular plate that closes the grain outlet 19a has a rack gear 26 mounted in the middle of the outer plate surface along the front-rear direction and a motor having a pinion gear 25 that meshes with the rack gear 26. Reference numeral 24 denotes a structure attached to the front side wall of the grain take-out outlet cylinder portion 17, whereby the shutter 21 is smoothly opened and closed by the drive operation of the motor 24.

  Next, with reference to FIGS. 1-6, the installation structure of the grain side discharge | emission apparatus 1, its transmission mechanism, etc. are demonstrated. First, the grain side discharging device 1 rotationally drives a bucket conveyor (not shown) having the above-described configuration in a box-shaped conveyor case 30 that is vertically formed with a rectangular cross section. While being freely stretched, it is integrally provided in the state where the flow-down rod 20 is communicated with the lower rear portion of the conveyor case 30. In addition, a discharge hopper 30a that discharges and guides the fed grain to the outside of the machine is configured at the top of the conveyor case 30. And the conveyor case 30 of the grain side discharging apparatus 1 is fixedly supported in a substantially vertical posture with respect to the grain tank 5, and uses a left metal 33, a transmission case 45, etc., which will be described later, below the conveyor case 30. The upper part of the conveyor case 30 is fixed to the Glen tank 5 side via an upper mounting member 31a installed on the upper part of the Glen tank 5, and the grain side discharging device is attached to the Glen tank 5. When 1 is fixedly supported, the glen tank 5 and the grain side discharging device 1 can rotate together around the vertical auger 11 to the outside of the machine body. Moreover, in the state which switched the grain side discharge apparatus 1 and the glen tank 5 to the grain storage work attitude | position, the lower part of the conveyor case 30 can be supported to the body frame 2 side via the lower attachment means 31 in connection with this invention. It is like that.

  As shown in FIGS. 3 to 5, the lower attachment means 31 has left and right metals 33 that pivotally support both ends of a drive shaft 32 that is driven by stretching a bucket conveyor, fixed to both sides of the lower portion of the conveyor case 30. In addition, the left metal 33 is joined to the lower part of the Glen tank 5 as described above. In addition, the left and right metal arms 35 that are vertically attached to the left and right metal 33 so that the attachment rod 34 is disposed laterally facing the body frame 2 side below the conveyor case 30. At the bottom of the As shown in FIG. 5, the attachment rod 34 is provided with an attachment member 36, which will be described later, at the left end (inner end) thereof with an attachment portion 37 protruding integrally from the attachment member 36. As a result, the attachment member 36 is attached to the frame member 2b in the front-rear direction located on the right outermost side of the machine body frame 2 so as to detachably fit as follows, and supports the grain side discharging device 1. I am doing so.

  That is, the mounting member 36 of the embodiment is formed so as to have an inverted L-shaped cross section by the horizontal mounting piece 36a and the vertical mounting piece 36b, and the upper and side surfaces of the frame member 2b made of a square pipe having a rectangular cross section. In addition, they have a sufficient mounting area to support the grain side discharging device 1 so as to match. And the guide part 36c for the mounting guide which inclines upwards is bent at the front-end | tip part (left side) of the said horizontal mounting piece 36a, and it has a mounting interval of the front-back direction in the vertical mounting piece 36b, and is a bolt A plurality of mounting holes 40 into which 39 is inserted are formed. On the other hand, on the lower surface of the frame member 2b, a mounting bracket 42 having a screw hole 41 at a position facing each of the mounting holes 40 is projected downward.

  As a result, the grain side discharging device 1 has the attachment member 36 at the attachment position of the frame member 2b in a state where the lower attachment means 31 is attached to the lower part of the conveyor case 30 via the left and right metals 33 and the metal arms 35. By matching and inserting the bolts 39 into the mounting holes 40 and the screw holes 41 and fastening them, the lower part of the conveyor case 30 can be fixedly supported to the frame member 2b. When the upper portion of the conveyor case 30 is fixed to the grain tank 5 side via the upper mounting member 31a in the temporarily standing posture, the grain side discharging device 1 can be erected in a substantially vertical posture. .

  That is, in this case, the grain side discharging device 1 can first support the weight by placing the horizontal mounting piece 36a of the mounting member 36 on the upper surface of the frame member 2b, and the vertical mounting piece 36b from the state can be Since the positioning can be easily performed by lateral movement so as to be in contact with the bolt 39, the bolt 39 can be inserted and tightened quickly and reliably. Further, since the mounting bracket 42 protrudes downward from the lower surface of the frame member 2b, the contact area of the vertical mounting piece 36b with the frame member 2b is increased, and the mounting span between the horizontal mounting piece 36a and the mounting hole 40 is increased. Therefore, it is possible to increase the mounting rigidity in the left-right direction of the grain side discharging device 1 to increase stability against the body vibration and to prevent shaking.

  Next, the transmission mechanism of the grain tank 5 and the grain side discharging device 1 will be described with reference to FIG. First, the horizontal conveyor 12 installed horizontally at the bottom of the Glen tank 5 has a pulley 12b provided at the shaft end of the horizontal conveyor shaft 12a having a belt tension clutch from the engine side of the motor unit 4 in the grain storage work posture. The drive belt 13 of the belt transmission mechanism can freely rotate. On the other hand, the grain side discharging device 1 is provided with a transmission case 45 via a metal 33 at the inner end of the drive shaft 32, a large diameter sprocket 46a provided on the input shaft 46 of the transmission case 45, and the pulley. A chain 48 is stretched around a small-diameter sprocket 47 attached to the rear surface of 12b. As a result, the grain side discharging device 1 rotates the drive shaft 32 by a predetermined rotation via the first reduction by the small-diameter sprocket 47 and the large-diameter sprocket 46a and the second reduction by the gear reduction transmission in the transmission case 45, thereby causing the bucket to rotate. The grain is lifted by the conveyor.

  In the combine A in which the grain side discharging device 1 is installed as described above, when the grain is discharged out of the machine from the glen tank 5, the grain outlet 19a is first closed by the shutter 21 when storing the grain. In this state, after driving the bucket conveyor of the grain side discharging device 1 through the transmission mechanism, the shutter switch 23 is turned on. As a result, as shown in FIG. 4, the shutter 21 moves to the front side by meshing the pinion gear 25 and the rack gear 26, and the grain flows out from the fully opened grain take-out port 17 a into the flow-down basket 20. Next, the grains that flow down in the flow-down basket 20 are lifted and fed into the discharge hopper 30a while being picked up by the already rotating bucket conveyor. As a result, the grains in the discharge hopper 30a are discharged into a collection container such as a truck bed that is waiting in the vicinity of the combine A in advance through a discharge guide tube or the like.

  On the other hand, when various kinds of transmission mechanisms arranged between the grain tank 5 and the threshing machine 1 or maintenance work such as internal inspection and repair performed by opening the right machine wall of the threshing unit 6 are required, After the drive belt 13 of the belt transmission mechanism is removed and the bolt 39 of the lower mounting means 31 is removed, the operation lever 14 of the fixing mechanism that fixes the lower tank portion and the body frame 2 is released. As a result, the grain tank 5 provided with the grain side discharge device 1 can be rotated outwardly by the human body with the vertical auger 11 as a fulcrum as shown in FIG. A wide maintenance work space in which the machine body frame 2 is largely exposed can be formed between the threshing unit 6 and the Glen tank 5, and various maintenance work can be facilitated.

  Next, the tank return work for completing the maintenance work and returning the grain tank 5 on the outer side of the machine body to the grain storage work posture is to push the grain tank 5 toward the threshing part 6 side to support the vertical auger 11. When it is turned back, the lower mounting means 31 and the lower part of the glen tank 5 are returned to the original state with respect to the machine body frame 2 in the reverse order, and the operating lever 14 is fixed by the fixing mechanism and the bolt 39 is fastened and fixed again. Thus, the combine work can be promptly continued. At this time, the grain side discharging device 1 is provided with lower mounting means 31 having an L-shaped mounting member 36 composed of a horizontal mounting piece 36a and a vertical mounting piece 36b in which an upwardly inclined guiding portion 36c is formed. Therefore, the work for returning and fixing the Glen tank 5 can be performed easily and smoothly, and the grain side discharging device 1 provided along the tank outer wall 16 of the Glen tank 5 can be stably supported. Can do.

  In other words, the combine A shipped from the factory may cause minute play in the installation structure portion of the glen tank 5, for example, in the vertical auger 11 and the attachment portion, etc. with long-term use. Therefore, when the mounting member 36 is detached from the body frame 2 and the front bottom side support is released, the Glen tank 5 that rotates in a cantilevered state with the vertical auger 11 toward the maintenance work posture is released. It turns in a state slightly lowered from the body frame 2 due to the minute backlash. Thus, when the Glen tank 5 is returned to the fixed position, the guide portion 36c of the mounting member 36 contacts the corner portion of the frame member 2b as shown in FIG. Try to be temporarily blocked.

  However, since the Glen tank 5 has a pushing force in the return direction and an inertial force in the rotation direction that exceed the contact resistance, the lower inclined surface of the guide portion 36c gradually rides on the corner portion of the frame member 2b. 36a reaches the upper surface of the frame member 2b and slides in the direction of the arrow. Accordingly, the vertical mounting piece 36b comes into contact with the side surface of the frame member 2b, the rotation of the Glen tank 5 is stopped, and the inverted L-shaped mounting member 36 matches the fixing position of the frame member 2b. The engaged state is removably positioned.

That is, according to the installation structure of the grain side discharging device 1 according to this embodiment, the Glen tank 5 can be made to match the mounting member 36 of the lower mounting means 31 with the frame member 2b only by pushing in the return direction. The fixing mechanism and the bolt 39 can be easily and quickly fixed at the fixing position. Further, since the attachment member 36 engages the lower part of the conveyor case 30 with the fixing position of the frame member 2b via the horizontal attachment piece 36a and the vertical attachment piece 36b, the grain side discharging device 1 is stable with respect to the frame member 2b. Since the mounting rigidity is well supported, the vertical and horizontal shaking can be prevented without imposing a large burden on the side wall of the Glen tank 5 or the like.
Further, the lower attachment means 31 is provided with an inverted L-shaped attachment member 36 on an attachment rod 34 that provides the lower portion of the conveyor case 30 laterally via the left and right metal portions 33 and the attachment rod 35, and the attachment member 36 is a frame member. 2b can be mounted with a simple configuration that guides the engagement through the guide portion 36, so that the installation structure of the grain side discharge device 1 can be made inexpensive, and switching between the grain storage work posture and the maintenance work posture is possible. Can be performed efficiently.

  Further, according to the lower mounting means 31 having the above-described configuration, the mounting bracket 42 can be easily provided by joining means such as welding to the frame member 2b, so that the grain side discharge is performed with respect to the conventional rice wheat combine. When the device 1 is installed as a retrofitting operation and used as a combine A for beans, it is used by an additional operation in which the mounting bracket 42 is simply joined by welding or the like without requiring any special processing for the machine body frame 2. There is a feature that can be made possible. Note that the mounting member 36 is not added with the mounting bracket 42 in advance, and in the combine manufacturing process, for example, inside the hole for inserting the bolt 39 into the frame member 2b in the frame member 2b as shown by the dotted line in FIG. By providing the nut 42a, the bolt 39 can be inserted and fastened in the mounting hole 40 formed at a position facing the nut 42a. In this case, the retrofitting work of the mounting bracket 42 is not necessary.

  Furthermore, when installing the grain side discharge device 1, when it is necessary to reverse the rotational power from the horizontal conveyor shaft 12 a of the horizontal conveyor 12 to rotate the drive shaft 32, for the transmission case 45, By detachably providing a reverse gear case (not shown) for reversing the rotation of the large-diameter sprocket 46a that is pivotally supported, the bucket conveyor can be rotated in an appropriate direction via the drive shaft 32. According to this structure, the existing grain side discharge apparatus 1 can be easily installed only by attaching a reverse gear case also to the combine provided with the Glen tank 5 in which the rotation direction of the horizontal conveyor 12 is different. .

  Moreover, although the Glen tank 5 of the embodiment shows an example in which the shutter switch 23 of the motor 24 that opens and closes the shutter 21 is attached to the take-out side wall 19, the shutter switch 23 may also be installed in the control unit 3. It is. That is, in this case, the operator operates the shutter switch 23 from the control unit 3 to open and close the shutter 21 in accordance with the operation of turning on the discharge clutch of the transmission mechanism of the grain side discharging device 1 performed on the control unit 3 side. It can be performed. Further, the motor 24 that opens and closes the shutter 21 may be opened and closed by a shutter switch that is turned on and off in conjunction with electrical automatic control in accordance with the on / off operation of the discharge clutch. In this case, the opening operation of the shutter 21 is desirably performed at a timing delayed several seconds after the operation of engaging the discharge clutch is performed.

A Combine 1 Grain side discharging device 2 Airframe frame 2b Frame member 5 Glen tank 6 Threshing part 11 Vertical axis (vertical auger)
16 Tank outer wall 30a Discharge hopper 36 Mounting member 36a Horizontal mounting piece 36b Vertical mounting piece 36c Guide part

Claims (1)

A grain side discharging device (1) for lifting the stored grain and releasing it outside the machine along the tank outer wall (16) of the Glen tank (5) for storing the grain supplied from the threshing section (6). ) , And the grain side discharging device (1) is fixedly supported by the grain tank (5), the grain side discharging device of the combine, wherein the grain tank (5) is the fuselage frame (2) The vertical axis (11) erected on the fulcrum is provided so as to be able to switch and rotate between a grain storage work posture and a maintenance work posture side, and a grain tank (5) and a grain side discharge device (1) are provided. A horizontal mounting piece that is integrally configured to be horizontally rotatable , and is respectively brought into contact with the upper surface and the side surface of the frame member (2b) of the machine body frame (2) at the lower part of the grain side discharging device (1). An inverted L-shaped mounting member (36) comprising (36a) and a vertical mounting piece (36b); Lower with freely attached removably to the frame member (2b) of the grain side discharge device via a biasing member (36) (1), the induction portion is upwardly inclined to the distal end portion of the lateral attachment pieces (36a) By providing (36c), when returning the grain tank (5) from the maintenance work posture side to the grain storage work posture, the attachment member (36) is attached to the frame member (2b) via the guide portion (36c). Grain storage work posture in which the frame member (2b) and the attachment member (36) are fastened to the bolt (39) in a state of engaging and guiding the attachment member (36) to the frame member (2b). Then, it is set as the structure by which the grain side discharge apparatus (1) was fixedly supported by the body frame (2), The grain side discharge apparatus of the combine characterized by the above-mentioned.

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