JPH044188Y2 - - Google Patents

Description

[Detailed description of the invention] Conventionally, combine harvesters that have a threshing device and a grain tank installed on the left and right sides of the machine stand have a system between the threshing device and the grain tank, in which the grains in the grain tank are discharged and transported. The grain tank is equipped with a transmission device that drives the means for loading grain into a transport vehicle such as a dump truck. Windows with removable lids are provided on the outer panel and the inner panel on the side of the threshing device, and when carrying out the above-mentioned maintenance inspections, the lids have to be attached and detached each time, which is extremely troublesome. Since increasing the size of the grain tank reduces the strength of the grain tank itself, it had to be made smaller, which made work difficult.

In addition, when harvesting with a combine harvester, the amount of work was calculated based on the number of times grain was loaded from the grain tank onto the transport vehicle. Even if the filling amount is slightly or less than the full amount, then
If the harvesting process was more than full, the work would be stopped and the truck would be loaded. Therefore, if the grain amount was calculated based only on the number of loadings, the calculated value would be inaccurate. When the work was completed, the amount of grain filled into the grain tank was sometimes significantly less than the full amount.

Therefore, in order to solve the above-mentioned problem, the grain tank was pivoted so that it could move up and down and move forward and backward relative to the threshing device. The grain tank was extremely unstable, causing problems such as damage to the measuring device when the grain tank moved up and down.

The present invention provides a combine harvester in which a threshing device and a grain tank are mounted in parallel on the left and right sides of the machine, in which the outside of the grain tank is pivoted so that it can move up and down and move forward and backward relative to the threshing device. A measuring instrument is arranged at a part separated from the branch, and a support device is arranged on the same side as the measuring instrument, which can switch the grain tank between a posture in which the grain tank prevents the forward and backward movements by its own weight and a posture in which it does not block. The above-mentioned issues and problems were solved.

The embodiments shown in the drawings will be explained below.
1 is a threshing device mounted on one side of the machine stand 2, and in front of it are a reaping device 3 and a grain culm conveying device 4.
A grain tank 5 is provided on the machine platform 2 on the side of the thresher 1, and a cockpit 6 and an operation panel 7 are installed in front of the grain tank 5.
An engine room 8 is provided at the rear.

Further, the receiving gutter 5b of the V-shaped bottom plate 5a of the grain tank 5 is deviated outward by l from the perpendicular line passing through the center of gravity of the grain tank 5, and the receiving gutter 5b of the V-shaped bottom plate 5a of the grain tank 5 5b, there is a fried grain thrower 1 in which a flip-up blade 10b attached to the outer end of the shaft 9a of the transfer spiral 9 is housed in the casing 10a.
0 is attached so that it can be tilted laterally, and its grain lifting cylinder 10
c is a base cylinder 10 ₁ that partially protrudes above the threshing device 1;
A middle cylinder 10 ₂ connected to the upper end thereof so as to be able to rise and fall forward and backward;
The base cylinder ₁₀₁ of the grain lifting cylinder 10c has a spiral cylinder whose one end is pivoted to _the base cylinder ₁₀₁ . , and a screw rod connected to the other end and connected to a motor 12 whose base is pivotally supported on the front surface of the grain tank 5.It is tilted left and right by a telescoping cylinder 13, which is screwed to the other end and pivoted to the front surface of the grain tank 5. The middle cylinder 10 ₂ is raised and lowered by a telescopic cylinder 13 a having the same structure as the one described above, and when stored, it falls backward as shown in FIG. 1, and the discharge cylinder 10 ₃ is not shown in the figure. Although it is not equipped with a telescopic cylinder, it can be tilted using the same telescopic cylinder as mentioned above, and when stored, it will be folded diagonally forward.

Furthermore, the grain lifting cylinder 11 of the threshing device 1 is a grain tank 5.
The discharge port 14a of the thrower 14 is placed upright between the rear part of the grain tank 5 and the threshing device 1, and has a throwing blade built into the casing that is attached to the upper part of the thrower and is integral with the helical shaft. It is loosely and removably fitted into the bored slot 15, and a gasket 14b is adhered to the ring-shaped receiving plate.

Reference numeral 16 denotes an outlet formed on the outside of the bottom plate 5a of the grain tank 5, to which a discharge pipe 17 having a shutter 17a is connected. Bag hanging rods 20, 20 corresponding to the tube 17 are protruded, and the transfer spiral 9
The shaft 9a is attached to a transverse shaft 23 by a pulley 22 of the engine 21, and a pulley 24 and a clutch pulley 25 are attached to the ends thereof and housed in the rear space 24' at the bottom of the grain tank 5. is driven via a belt 26 and a bevel gear,
A portion of these transmission mechanisms in front of the clutch pulley 25, outside the discharge pipe 17 and the bag hanging rod 20, and below the pilot seat 6 are covered by an openable cover 27.

And the lower side plate 18,1 of the grain tank 5
A pair of bearings 32, 32 are fixed to the outer side of the lower part of the machine 8, and a support shaft 33 that is loosely fitted into these bearings 32, 32 is attached to a bracket 34, 3 that is installed upright on the machine base 2.
4, the grain tank 5 can tilt outward around its outer lower part, and a vertical guide groove 35a is provided in the upper part of the grain tank 5 on the side of the threshing device 1. A receiving frame 35 with a receiving plate 35b integrally formed on the upper part is fixed, and the threshing device 1
The guide groove 35 is attached to the operating rod 36 which is pivotally supported on the upper surface.
The roll 37 fitted to the a is pivotally supported, and the roll 3
7. The operating rod 36 and the receiving frame 35 constitute a support device.

Furthermore, as described above, the outer lower part of the grain tank 5 is pivotally supported so that it can tilt, so it is tilted toward the threshing device 1 side due to its own weight, and in this state, the operating rod 36 is rotated as shown in FIG. When the roll 37 is pushed up from the position shown by the chain line to the position shown by the solid line, the grain tank 5 is slightly pushed outward while the roll 37 rises while rolling in the guide groove 35a, and the operating rod 36 assumes an upwardly inclined position. When it is bent, it comes into contact with the receiving plate 35b,
The grain tank 5 is held in a predetermined position. At this time, the bent portion at the top of the stopper 38 made of a spring rod engages with the shaft of the roll 37, and the operating rod 36
prevent it from descending.

Reference numeral 39 denotes a shutter whose upper part is supported in a hinge-like manner by a hanging shaft 40 and covers both sides of the transfer spiral 9 from above, and is supported by arms 41, 41 which rotatably support both ends of the hanging shaft 40. , the rising part 43 of one arm 41 from the pivot support 42 is connected to the connecting rod 4.
Since the shutter 39 is connected to the operating lever 45 through the guide rod 4, when the operating lever 45 is tilted to the left in FIG.
6, 46 and descends while opening to both sides and comes into contact with the bottom plate 5a.
47 and tilts the operating lever 45 to the right, the shutter 39 rises and is housed in an inverted V-shaped plate 48 fixed between the front and rear walls, and both sides of the transfer spiral 9 are opened.

Further, a base portion of a support member 50 is rotatably supported at a portion of the support shaft 33 corresponding to the center of gravity of the grain tank in the front-rear direction, and the threshing device 1 of the machine base 2
The lower part of the load cell 52, which is suspended by a pin from a gate-shaped frame 51 set upright, is connected to the connecting plate at the tip of the support member 50 by a pin, and the lower side plate 1
A receiving member 53 consisting of a pipe whose both ends are welded to the supporting member 50 is separated by a small gap so that it rests on the supporting member 50 when the supporting device is released. When the above-mentioned release operation is performed, the grain tank 5 tilts downward and rides on the support member 50, and the weight of the grain is detected by the load cell 52, and the detected value is displayed on the display 54 provided at the upper front of the grain tank 5. input and digitally displayed.

The load cell 52 is a tension type load cell, but if the measuring device is a compression type load cell, a measuring device 52' is provided on the machine base 2 as shown by the dotted line in FIG. do. Also in this case, during operation, the grain tank 5 is supported by a support device so that the receiving member 53 is slightly spaced apart from the measuring device 52'.

In the above-mentioned combine harvester, the grains lifted by the grain lifting cylinder 11 of the threshing device 1 are put into the grain tank 5, and when the grain tank 5 is full, the machine is moved along the road and supported. When the operating rod 36 of the device is pushed down and released, the grain tank 5 is tilted toward the threshing device 1 side, and at the same time the receiving member 53 is moved toward the supporting member 50.
the load cell 5 via the support member 50
Since the load is applied to 2, 52', the load cell 52, 5
2' senses the weight of the grain and displays it on the display 54 so that the operator can read the grain weight.

At that time, even if the traveling device rides on the ridge and the machine body is tilted, the grain tank 5 is distorted, and the receiving member 53 is shifted from front to back or from side to side, the receiving member 53 and the supporting member 5
Since it is absorbed between 0 and 0, it is possible to prevent inaccurate measurement and damage to the load cell.

Next, the telescoping cylinder at the bent portion of the grain thrower 10 is operated to make the grain lifting cylinder 10c continuous, and the telescoping cylinder ₁₃ attached to the base cylinder 101 is activated.
After operating the discharge cylinder ₁₀₃ to face the bed of a truck parked on the road, the clutch pulley 25 is lowered to tension the belt 26, and the transfer spiral 9 and the flip-up vane 10b are rotated. When the shutter 39 is opened using the operating lever 45 after the grains have been allowed to dry, the grains are fried and thrown into the loading platform of the truck.

After loading the grains, the shutter 39 is closed, the transfer spiral 9 and the flip-up blade 10b are stopped, and then the grain lifting cylinder 10 is closed.
Place c into the storage position shown in Figure 1.

A transmission mechanism between the threshing device 1 and the grain tank 5, for example, a transmission mechanism that drives the first transfer spiral, the second transfer spiral, or a winnow of the threshing device 1, and the opening/closing window of the threshing device 1 are controlled. When opening the sorting device for maintenance and inspection, normally the grains in the grain tank 5 are discharged and then the handle 5 at the top of the grain tank 5 is opened.
5, 55 and pull it outward, the grain tank 5 rotates outward about the support shaft 33 until the link 56 is in an extended position, and the side of the threshing device 1 is opened. Therefore, the above-mentioned maintenance and inspection can be easily performed.

6-7 show other embodiments,
A channel-type receiving member 53'' is welded to the lower surface of the lower plates 18, 18 on the opposite side from the support shaft 33, and is erected on the machine base 2 between the grain tank 5 and the threshing device 1, and is connected to the intermediate shaft 56a. A load cell 52 similar to the one described above constituting the measuring instrument is suspended from a support plate 56b supporting one end, and a long hole bored in the suspension plate 52' is provided with the receiving member 53'. A pin 57 is inserted through a portion corresponding to the center of gravity of the grain tank.

In addition, brackets 58, 58 protruding from the machine base 2
The receiving member 5 is attached to the shaft 59 which is rotatably supported by the shaft 59.
An eccentric cam 60 that slides on the lower surface of the grain 3' and constitutes a support device, and an arm 61 and a hook 64 are fixed to a lever 63 connected via a rod 62, and the arm 61 and the hook 64 are fixed to the lever 63, which is connected to the eccentric cam 60 that slides on the lower surface of the grain 3' and constitutes a support device. etc., when the lever 63 is tilted to the position shown by the dotted line in FIG.
At the same time, as shown by the dotted line in FIG. 7, the hook 64 is hooked onto the round bar 65 integral with the receiving member 53' and locked.

Furthermore, when the lever 63 is tilted to the position shown by the solid line during weighing, the large diameter portion of the eccentric cam 60 rotates downward and the hook 64 comes off the round bar 65.
The grain tank 5 rotates downward, the load cell 52 is placed in a tensioned state, and the grain is weighed.The load cell is connected to a display to display the measurement result on the display 54.

The present invention provides a combine harvester in which a threshing device and a grain tank are mounted in parallel on the left and right sides of the machine, in which the outside of the grain tank is pivoted so that it can move up and down and move forward and backward relative to the threshing device. A measuring instrument is disposed at a location separated from the branch, and a support device is disposed on the same side as the measuring instrument, which allows the grain tank to switch between a posture in which the grain tank prevents the advance and retreat movement by its own weight and a posture in which it does not. When carrying out maintenance and inspection of the transmission device installed between the threshing device and the grain tank, or the threshing device, the above maintenance and inspection can be carried out in a large space by operating the pivot point outside the grain tank. This can be done extremely easily, quickly and safely.

Also, when the grain tank is full or when work is completed, the grains filled in the grain tank are weighed using a scale while the grain tank is mounted on the machine base. It is possible to calculate the amount of work accurately based on the amount of grain.

Furthermore, during reaping and threshing operations and when traveling on the road, the grain tank can be stably supported by the pivot and the support device, and the scale can be prevented from being damaged.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Fig. 1 is a perspective view of the combine, Fig. 2 is a partially cutaway front view of the grain tank, Fig. 3 is a side view of the same as above, Fig. 4 is a front view showing the tilting operation of the grain tank, Fig. 5 Figure a is a plan view of the grain tank support device;
b is an exploded perspective view of the same as above with some parts omitted, FIG. 6 is a perspective view of the main part of another embodiment of the support device, and FIG. 7 is a front view of the support part. 1... Threshing device, 5... Grain tank, 33...
Support shaft, 35... Receiving frame, 36... Operating rod, 50...
Support member, 52, 52'...Load cell, 53,
53'...Receiving member, 60...Eccentric cam, 64...
Hutsuku.

Claims (1)

[Scope of utility model registration request] In a combine harvester in which a threshing device and a grain tank are mounted in parallel on the left and right sides of the machine, the outside of the grain tank is pivoted so as to be movable up and down and move forward and backward relative to the threshing device, and is spaced from the pivot. A measuring instrument is disposed at the part, and a support device is disposed on the same side as the measuring instrument, which allows the grain tank to switch between a posture in which the grain tank prevents the advance and retreat movement by its own weight and a posture in which it does not block. Grain tank weighing device in combine.