JPS606126A - Grain discharge apparatus of thresher - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a grain discharge device for a threshing machine that discharges grains stored in a grain tank after threshing to the outside of the machine.

Some threshing machines discharge the grain after threshing directly from the sorting room to the outside of the machine, and others use a grain lifting cylinder to discharge the grain from the sorting chamber to the grain tank, store it, and then store it in a predetermined amount. There are some that discharge all of the waste into a truck bed, etc., each time it reaches that amount. In the latter type of threshing machine, the device that discharges grains from the grain tank to the outside of the machine is generally called an auger. It consists of a rotatably supported screw conveyor. It is desirable that this auger be extended out of the machine for a long time so that the grain can be ejected far away when the hard grain is being ejected. It is necessary to store this in the intellect and into the aircraft. Conventionally, this is made bendable at the center, and is folded and stored in the grain tank during normal times, and is extended only when grains are being discharged, and is allowed to oscillate toward the side of the fuselage. On the other hand, it is desirable to increase the tank capacity in order to reduce the number of times the grain is discharged from the grain tank as much as possible and increase work efficiency, but there are legal restrictions on height.
lJ limit, and as mentioned above, the auger discharge f
Since the rri body must be laid down and stored on the tank, in order to increase the capacity it must be expanded in the 4JQ direction, which is necessary to downsize the entire machine! 1lii
It was causing harm. Furthermore, since the heavy discharge cylinder is mounted at a high position on the machine base without strong support, it is unstable during running and tends to generate noise due to vibration.

The present invention has been made in view of the above-mentioned points, and includes a discharge cylinder joined to the horizontal opening end of the upper end joint so that the discharge cylinder can be raised or lowered, and is formed in the vicinity of the upper end so as to be bendable. By configuring the cylindrical body to be rotated in the direction of placing it on a low ceiling surface by the refraction of the upright cylindrical body,
To provide a grain discharging device for a threshing machine which improves work efficiency by raising the grain tank and increasing its capacity, and which stabilizes running by lowering the center of gravity. Embodiments of the present invention will be described in detail below with reference to the drawings.

Figures 1 to 5 show an example of the grain discharge device according to the present invention ψJ, Figure 1 is a schematic horizontal view of a combine harvester in which this is implemented, and Figure 2 is a grain tank of a threshing machine. 3 is a partially cutaway front view of the upper end of the upright cylinder seen from the direction of arrow A in FIG. 1, FIG. 4 is an enlarged sectional view along BB in FIG. 1, and FIG. This is an enlarged plan view of Figure C in Figure 4. In the figure, a combine harvester 1 is equipped with a threshing machine 2 mounted on a running frame that supports left and right running rollers (not shown), and in front of it is a threshing machine 2 that harvests and threshes the husks of the field. A driver's seat 4 in which a driver sits and an operation box 5 equipped with various operating levers and instruments are arranged in the front and rear sides of the rear end of the reaper 3. 6 is a waste straw processing device that processes the threshed husks, that is, waste straw and releases it to the field.

Behind the driver's seat 4 of such a combine 1, a grain tank, generally designated by reference numeral 1, is mounted on a traveling frame. This grain tank is integrally formed with a main tank 8 formed in the shape of a rectangular box and an auxiliary tank 9 formed in the shape of a funnel. 11. between the members forming the f and the main tank 8; tJ is hinge 1
0, etc., and the side surface of the main tank 8 is configured to be completely open. The upper end of the main tank 8 is connected to the upper end outlet of a grain lifting cylinder (not shown) whose base end is connected to a spiral conveyor at the bottom of the separate chamber.After threshing and sorting, the grain is transported by the spiral conveyor. The sand grains are lifted up and conveyed by a screw in the grain lifting cylinder and are discharged into the main tank 8. Also, the inclination 1 of the auxiliary tank 9
A discharge port 11 for discharging excess grains into a paddy bag or an auxiliary container is opened on the surface, and a shutter 12 that can be opened and closed is provided at this port. A discharge port 14 having a shutter 13 that can be opened and closed is provided.

The grain tank T configured in this manner is equipped with an auger 15 as a grain discharge device for discharging the grains inside the machine to the outside, and this auger 15 is attached to the side of the main tank 8. It is composed of an upright cylindrical body 16 that stands upright, and a discharge cylindrical body 18 that is connected to its upper end by a joint pipe 17. The upright cylindrical body 16 is formed in the shape of a circular cylinder, and the upper part is attached to the clamping fitting 1.
9 is fixed to the main tank 8, and the bearing part of the connecting cylinder 20, which is connected to the lower end with a hinge, is connected to the main tank 8.
It is firmly supported by fixing it to the
Between it and the bottom of the main tank 8'f: communicated so that grains can go in and out. On the other hand, at the funnel-shaped bottom of the main tank 8,
A screw 21 that transports the grains in the main tank 8 to the upright cylinder 16 is installed and supported by the ihl+ receiving part of the connecting cylinder 20, and a pulley 22 fixed to the end shaft of the screw 21 is installed from the driving side. A belt 26 is stretched between the rotatably driven pulley 23 and a pulley 25 provided on the pulley shaft 24 at the lower end of the connecting cylinder 20.

The joint pipe 17 is formed of an L-shaped cylindrical pipe 27 with both open ends perpendicular to each other, and a joint tube 29 joined to the downward open end and prevented from coming off with a hook 28. The L-shaped tube 27 and the upright cylinder body 16 are rotatably joined by a joint cylinder 29. The J! The U-shaped portion 30 is rotatably fitted to the lateral open end of the curvilinear tube 27, and also has a bracket 31 fixed to and protruding from the circumferential surface of the discharge cylinder 18.
The other end of the connecting plate 32 provided integrally with the L-shaped pipe 27
1. By doing so, the discharge cylinder 18 can be freely raised and lowered by moving around the pivot part of the connection &32 with the buried part 3o. At the same time, the L-shaped tube 27 is prevented from slipping out. The connecting cylinder 2o, the upright cylinder 16, and the joint 'ti1 joined in this way
7 and the discharge cylinder 18 are supported by screws 9 whose ends are close to each other, and in FIG.
, a screw and a grain tank 6 provided within the connecting tube 2°
(It communicates with the screw 21 of 111!l through a bearing part, and the grains transferred from the screw 21 to the screw in the upright cylinder 16 are lifted up and conveyed inside the upright cylinder 16, and then into the joint pipe 17. 411'' from the discharge tube 36 at the tip of the discharge tube 18.
It is configured to be issued. , 3γ is a tension spring 9 which is stretched between the joint pipe 17 and the discharge cylinder 18 and biases the discharge cylinder 18 in both the upright side and the collapsed side by passing over a fulcrum.

The upright cylinder 16 is divided into upper and lower parts near the upper end, and the protruding piece 16b on the lower end side of the upper cylinder 16a is connected to the lower cylinder 16.
It is pivotally attached to the e-side platen 16d, and is configured such that the two-part cylinder 16a rotates about the pivot 16e and the upright cylinder 16 bends. Note that the screw 33
．． Reference numeral 34 denotes an upper and lower cylinder 1 (which is pivotally supported by the ia and 16b, respectively, and engaged by a pin 38 and a notch 39), and when the upright cylinder 16 bends in this way, the p-joint pipe 17 And the collapsed discharge cylinder 18 rotates y9♂ about the pivot 16e integrally with the upper part body 16a,
As shown by the chain line in FIG. 4, the discharge cylinder 18 is configured to be placed on the ceiling surface of the threshing machine 2, which is lower than the main tank 8, via a support 4o which will be described later. The support body 4o is integrally formed with an arm 40a and a semi-circular cylinder receiver 40b welded to the tip of the arm 40a. The base end portion is pivotally supported by a bracket 41 that protrudes toward the 1t2 side. This pivot center is provided concentrically with the pivot shaft 16e, which is the rotation center of the upper cylinder 16a, and the support member 4.
o corresponds to the central part in the longitudinal direction of the discharge cylinder 18 and is detachably provided thereto.
L4j constant t Le Y constant (4fi'+: 41 is attached. This identification device 41
A three-pronged lever 44 is rotatably supported by a 2V pin 43, and a handle 45, a rod receiver 46, and a wire receiver 47 are protruded from three directions. In addition to the rod 48 pivoted by λ"1 on the rod receiver 46, Vlfl
i is removably attached to a hook 49 fixed to the circumferential surface of the discharge cylinder 18, and by rotating the three-pronged lever 44 with the handle 45 to the @'1 position in FIG. The rod 48 and the hook 49 are engaged with each other, and the engagement is released by rotating the rod 48 and the hook 49 to the solid line position. When the lever 44 is at the chain line position, the rod 48 passes over the fulcrum, and the cylinder receiver 40b and the cylinder 18 are fixed, and the cylinder 18 is fixed.
is firmly supported, and is released from support when the lever 44 is in the solid line position. It's the wire that has one end fixed to the wire receiver 47. The ear 50 is guided over the main tank B toward the upright cylinder 16, and is pivotally attached to the free end of a movable hook 51 that is pivotally supported on the circumferential surface of the upper FiISysM body 16a. The opposing part of the movable hook 51 (/(= means the fixed 7 hooks 52 that engage with this)
is fixed to the circumferential surface of the cylinder 16m, and the movable hook 51
is biased toward engagement with the fixed hook 52 by a torsion coil spring 53 attached to its pivot shaft.

By doing this, when the three-pronged lever 44 is rotated to the solid line position using the handle 45 and the cylinder body 18 is fixed, the wire 50
is pulled, and the hooks 51 and 52 are released from the cylindrical body 16.
a can be refracted. Further, when the cylinder 18 is released, the hooks 51 and 52 are engaged and the cylinder 16& is fixed in the upright position. Further, a tension spring 54 is stretched between one end of the arm 40 and the body side of the threshing machine 2, and when the arm 40a is in the upright position, it is biased in the upright direction, and the arm 40a is also brought down. The arm 4Oa is configured to be MM so as to bias the arm 4Oa in the direction of lodging when the arm 4Oa crosses over the fulcrum on the way and is at the lodging position. 55 is fixed to the cylindrical body receiver 40b and supports the support body 4.
The operation of the grain discharging device configured as described above, which is a buffer member provided to be interposed between the cylinder receiver 40b and the thresher 2 when the grain is laid down, will be described. First, when discharging the grains in the grain tank 6, use the handle 45 to rotate the three-pronged <-44 to the chain line position in FIG. 4, and the rod 48 and hook 49 will be disengaged. Therefore, the fixation of the ejection cylinder body 18 is released and it becomes possible to stand up 1, and the ejection face body 1B is then erected and swung so that the ejection part 36 faces the truck bed or the like. At this time, the υ wire 50 is pushed toward the upright cylinder 16 by the rotation of the three-pronged lever 44, and the hooks 51 and 52 are engaged by the elastic force of the screw coil spring 53, so that the upper The cylindrical body 16a does not fall down. After this, when the rotation of the driving side is transmitted to the belt 26, the screw 21 at the bottom of the main tank 8
rotates and conveys the grains toward the lower end of the upright cylinder 16. At the same time, the screws 33, 34, etc. inside each cylinder 16, 29, 27. When the discharge work is finished and the product is to be moved in the field or on the road, the rod 48 and the hook 49 are matched, and then the three-pronged lever 44 is moved with the handle 45. When it is rotated to the solid line position in FIG. 4, the rod 48 and the hook 49 do not engage and the rod 48 passes over the fulcrum, so that the discharge cylinder 18 is fixed by the cylinder support 40b of the support 40. . At the same time, the wire 50 is pulled toward the fixing device 41, so that the movable hook 51 rotates against the elastic force of the torsion coil spring 53, disengaging from the fixing hook 52, and disengaging the upper cylindrical body 1.
6 & can be laid down. Then, when the upper cylinder 16 & is lowered, the upper cylinder 16B, the joint pipe 17, the extractor cylinder 18 and the support body 40 are brought down as one body to the position indicated by the chain line in FIG. 4, and are at a lower level 1d than the main tank 8 A buffer member 55 is seated on the ceiling surface of the threshing machine 2. In this case, the discharge cylinder 18 is supported by the joint pipe 17, the upper cylinder 1ea, and the support body 41, and the arm 40a is biased with rotational force in the direction of collapse by the tension spring 54, so that the discharge cylinder body 18
Others are firmly fixed. Further, the discharge cylinder 18 occupies a position lower than the earthen floor of the main tank 8.As is clear from the above description, according to the present invention, in the grain discharge device of a threshing machine, the horizontal opening of the upper fly joint part An upright cylinder 16 with a discharge cylinder 18 joined to the end so that it can be raised or lowered is formed so as to be bendable near the upper end, and the laid down discharge cylinder 18 is placed on a low ceiling surface by the bending of the upright cylinder 16. By configuring the discharge cylinder 18 to be rotated in the direction in which it is rotated, it is not located above the grain tank when the discharge cylinder body 18 is folded and stored, so that the height of the grain tank 6 is not limited by the legal restrictions. It is possible to increase the capacity of the grain tank 6 without expanding it laterally, improving work efficiency and downsizing the machine base, as well as lowering the center of gravity. The running of the machine becomes extremely stable. ,
Further, as in the embodiment, by supporting the ejection cylinder 18 with the support 40 and providing the fixing device 41 between this and the ejection cylinder 18, the support of the ejection cylinder 18 at each position is strengthened. Running becomes more stable, noise is not generated during running, and the cropping environment is improved. Furthermore, as in the embodiment, if a spring member extending beyond the fulcrum is provided on the support body 40 to apply rotational force to the support body 40 in both the upright and down positions, the fixation of the discharge cylinder 18 can be further stabilized.

[Brief explanation of the drawing]

1 to 5 show an embodiment of the grain discharging device for a threshing machine according to the present invention, FIG. 1 is a schematic plan view of a combine harvester implementing this, and FIG. 2 is a grain tank of the threshing machine. A perspective view showing the vicinity, FIG. 3 is a partially broken pressure surface view of the upper end of the upright cylinder viewed from the direction of arrow A in FIG. 1, and FIG. 41 is a BB in FIG. 1.
The enlarged sectional view and FIG. 5 are an enlarged plan view taken from C in FIG. 4. 2... Threshing machine, 6... Grain tank, 15...
・Auger, 16... Upright cylinder, 16a... Dobe cylinder, 16b... Lower cylinder, 16e... Pivot,
17...Joint pipe, 18...Discharge cylinder body, 40...
...Support, 41...Fixing device, 54...
tension spring. Patent applicant: Iseki Agricultural Machinery Co., Ltd. Agent: Masagi Yamayo (11 people)

Claims (3)

[Claims] (1) In the grain discharge device of a threshing machine, which is equipped with an upright cylinder and a discharge cylinder which can be raised or lowered, the base end of which is rotatably joined to the horizontal opening end of the upper end joint part, A grain threshing machine characterized in that the upright cylinder is formed so as to be bendable near its upper end so that the discharge cylinder can be rotated in a direction in which the discharge cylinder is placed on a low ceiling surface adjacent to the grain tank. Grain ejector. (2) The longitudinal intermediate portion of the ejection cylinder is pivoted coaxially with the center of rotation of the ejection cylinder, and is removably supported by the free end of the support. The grain discharge device for a threshing machine according to claim 1, further comprising a fixing device for fixing the grain discharge cylinder to the discharge cylinder. (3) The middle part of the ejection cylinder in the longitudinal direction is supported by a support, and between this support and the aircraft side, the ejection cylinder rotates to cross over the fulcrum and the ejection cylinder rises and falls to the support. The grain discharging device for a threshing machine according to claim 1, further comprising a spring member that applies rotational force in each direction.