JPS59203431A - Grain tank in combine - 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] Conventionally, in a combine harvester in which a threshing device and a grain tank are mounted in parallel on a machine platform, various transmission devices have been disposed between the threshing machine and the grain tank. However, when carrying out work such as inspection and maintenance of the transmission device, its driving source, the engine, and the threshing device, the grain tank becomes an obstacle.

As a measure to eliminate such drawbacks, it is conceivable to support one end of the outside of the grain tank rotatably around a vertical axis so that the grain tank can be horizontally rotated outward. Since a space is required on the side to allow the grain tank to rotate horizontally, the aircraft becomes larger and the grain tank becomes unstable due to the cantilevered shape when turning.

The present invention aims to improve the above-mentioned drawbacks, and to provide a grain tank for a combine harvester in which the grain tank can be easily tilted and the lift height can be increased.
In a combine harvester in which a threshing device and a grain tank are mounted in parallel on a machine base, the outer lower part of the grain tank is pivoted to the machine base so as to be able to take over the grain, and a grain frying device is provided on an end wall of the grain tank. It is characterized in that the cylinder stands up from the lower part outside the center of gravity of the grain tank toward the outside and upward.

The embodiment shown in the drawings will be described below. Reference numeral 1 denotes a threshing device mounted on one side of the machine stand 2, and in front of it is a pre-processing device consisting of a reaping device 3 and a culm conveying device 4. It is installed so that it can be tilted up and down, and a grain tank 5 is provided on the platform 2 on the side of the threshing device 1, a cockpit 6 and an operation panel 7 are provided in front of it, and an engine room is provided in the rear. 8 is a provision.

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. At a portion corresponding to the receiving trough 5b, a fried grain thrower 10 is movably mounted, which is made up of a flip-up blade 10b attached to the outer end of the shaft 9a of the transfer spiral 9 and housed in a casing 10a. , the grain lifting cylinder 10c has a base cylinder 10. which partially protrudes above the threshing device 1.
and a middle cylinder 102 connected to its upper end so that it can be raised and lowered forward and backward,
A curved discharge tube 1 is bendably connected to its tip.
03, and the base cylinder 101 of the grain lifting cylinder 10c has one end pivotally supported by the base cylinder 10□, and the other end is screwed into the base cylinder 101, and the base is connected to the front surface of the grain cylinder 5. It is tilted left and right by a telescoping cylinder 13 consisting of a screw rod linked to a motor 12 which is pivotally supported by the cylinder, and when stored, it assumes an outwardly tilted position as shown in Fig. 2, and the middle cylinder 102 is different from the one described above. When stored, it is raised and lowered by a telescoping cylinder 13a having a similar structure, and is folded backwards as shown in FIG. Since it is in a folded position and the lower part of the casing 10a is fitted between the framework of the machine base 2 as shown in FIG. 2, it is possible to enlarge the grain kunk 5 and lower its center of gravity. I can do it.

Further, the grain lifting cylinder 11 of the threshing device 1 is erected between the rear part of the grain handle 5 and the threshing device 1, and a throwing blade attached to the upper part and integrated with the helical shaft is housed in the casing. The discharge port 14a of the thrower 14 is loosely and removably fitted into an input port 15 formed in the upper part of the grain tank 5, and a packing 14b is adhered to the ring-shaped receiver.

Reference numeral 16 indicates a take-out hole bored on the outside of the bottom plate 5a of the grain tank 5.
Ko, shutter 1? The connecting rod 18, which is in explosive contact with the lower side plate 18.18, has a protruding rod 20.20 corresponding to the ejecting tube 17, and a transfer spiral 9. As shown in FIG. 5, the shaft 8a is connected to a horizontal shaft 23 by a pulley 22 of the engine 21, a pulley 24 attached to the end thereof, and a clutch pulley 25.
It is driven via a belt 26 and a bevel gear attached to the transmission mechanism, and the front part of the clutch pulley 25 of these transmission mechanisms, the outside of the discharge pipe 17 and the hanging rod 20, and the lower part of the cockpit 6. These parts are covered by an opening/closing cover 27, and the opening/closing cover 27, as shown in FIG. 28, and a clamping spring 30.3 protruding just above the pin 28.28.
0 is provided with locking pins 31 and 31 that are removably supported.

A pair of bearings 32.32 are fixed to the lower outer side of the lower side plate 18.18 of the grain tank 5, and a support shaft 33 loosely fitted in these bearings 32.32 stands on the machine base 2. The grain tank 5 is supported by the provided brackets 34, 34, so that the grain tank 5 can be tilted outward around its outer lower part, and the threshing device 1 in the upper part of the grain tank 5 can be tilted outwardly.
There is a vertical guide groove 35a on the side and a receiving plate 35b on the top.
The receiving member 35 which is integrally formed is fixed, and the threshing device/
The roll 3 that fits into the guide groove 35a on the operating rod 36 pivotally supported on the upper surface of the roll 3? The roll 37 and the operating rod 3
6 and the receiving member 35 constitute a support device.

In addition, as described above, the grain tank 5 is rotatably supported at the outer lower part, so it is tilted toward the threshing device 1 side, and in this state, the operating rod 3G is moved as shown by the chain line in FIG. When the roll 37 is pushed up from the position shown in the guide groove 5
The grain tank 5 is pushed outward a little while rolling in the upper part a, and when the operating rod 36 is in a tilted position in two directions, it comes into contact with the receiving plate 35b, and the grain tank 5 is held in a predetermined position. is held in this position. At this time, the bent portion of the upper part of the stopper 38 made of a spring rod engages with the shaft of the roll 37 to prevent the operating rod 36 from descending.

Reference numeral 39 denotes a shutter whose upper part is hingedly supported by the hanging shaft 40 and covers both sides of the transfer spiral 9 from above,
An arm 41 rotatably supports both ends of the hanging shaft 40
．． The bases of the arms 41 are supported by a connecting shaft 42 so as not to rotate relative to each other, and the rising part 4 from the base of one arm 41
3 is connected to the operating lever 45 via the connecting rod 44, so when the operating lever 45 is tilted to the left in FIGS. 2 and 9, the shutter 39 opens on the inside as shown in FIG. The shutter 38 is guided by the guide rod 48°4θ and descends while opening to both sides, and when it comes into contact with the bottom plate 5a, the shutter 38
The lower end of the is a longitudinal receiving projection 47.4 fixed to the bottom plate 5a.
? When the receiver is stopped and operated and tilted to the right by /<-45, the shutter 38 rises and is housed in the inverted V-shaped plate 48 fixed between the front and rear walls, and both sides of the transfer spiral 9 are opened. do.

Further, a metering tube 50 is provided at the intermediate portion of the support shaft 33 in the front and back direction.
The base of the load cell 52 is rotatably supported, and the lower part of the load cell 52, which is suspended with a pin from a gate-shaped frame 51 installed near the threshing device 1 on the machine stand 2, is attached to a connecting plate at the tip of the measuring tube 50 with a pin. A pipe 53 whose both ends are in explosive contact with the lower side plates 18 and 18 is mounted on the measuring tube 50, and the amount of grain filled in the grain tank 5 is detected by a load cell 52. The detected value is input to a display 54 provided at the upper front of the grain tank 5 and digitally displayed.

The load cell 52 is a tension type load cell, but in the case of a compression type load cell, it is provided at a position indicated by a dotted line 52'' in FIGS. 9 and 10 so as to come into contact with the lower surface of the metering tube 50.

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 operated. When the rod 3θ is pushed down, the grain tank 5 tilts toward the threshing device 1, and at the same time, the pipe 53 lowers slightly together with the grain tank 5 and rests on the weighing station 50, so that the load cell 52 measures the weight of the grains. The operator reads the grain weight as it is sensed and displayed on the display 54, and then operates the telescopic cylinder at the bending part of the grain thrower 1O to align the grain thrower 10c. After operating the telescopic cylinder 13 attached to the base cylinder 101 and positioning the discharge cylinder 1o3 on the bed of a truck parked on the road, the clutch pulley 25 is lowered to tension the belt 26, and the transfer spiral When the shutter 39 is opened using the operation lever 45 after rotating the flip-up blade 9 and the flip-up blade 1ob, the grains are fried and thrown into the loading bed of the truck.

After loading the grains, the shutter 38 is closed, the transfer spiral 9 and the flip-up blades 10b are stopped, and the grain lifting cylinder 10c is placed in the storage position shown in FIG. 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, after draining the grains in the grain tank 5, grip the handles 55, 55 at the top of the grain tank 5 and pull outward to release the grains. The grain tank 5 rotates outward about the support shaft 33 until the link 5 extends as shown by the chain line in FIG. can be done easily.

At this time, since the grain thrower 10 is provided outside the center of gravity of the grain tank 5, the grain tank 5 can be easily tilted.

Furthermore, when lifting and discharging grains, the grain thrower 10 is deviated to the outside, so even if it is difficult to get the combine sufficiently close to the transport vehicle, the grains can be discharged with a high lifting height. can.

The present invention provides a combine harvester in which a threshing device and a grain handle are mounted in parallel on a machine base as described above, in which the outer lower part of the grain tank is pivotally supported on the machine base so that the grain tank can The grain lifting cylinder installed on the end wall is erected outward and upward from the lower part outside the center of gravity of the grain tank, so simply by tilting the grain tank outward, the threshing device and the grain tank can be connected. The inside of the transmission device and threshing device located in between can be maintained and inspected very easily.

In addition, since the grain lifting cylinder is offset outward from the grain tank's center of gravity, the grain tank can be easily tilted and the lifting height can be increased, even in areas with poor road or field conditions. Grain can be loaded onto a transport vehicle reliably and easily.

Furthermore, the stability of the grain tank is better than one in which one end of the grain tank is rotatably supported on a vertical axis, and it does not require space for turning. The tank can be made large.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is a perspective view of a combine, Fig. 2(a) is a partially cutaway front view of a grain tank, and Fig. 2(b) is a grain tank. 3 is a partially cutaway side view of the same, and FIG. 4 is a longitudinal sectional plan view of the transmission device of the transfer spiral and the grain thrower.
FIG. 5 is a side view of a part of the transmission device, FIG. 6(a) is a side view of the cover and its mounting part, and FIG. 6(b) is a plan view of the same.
(C) is a front view of the same as above, Fig. 7 (a) is a plan view of the grain tank support device, (b) is an exploded perspective view of the same with a part omitted, Fig. 8 is a sectional view of the shutter, and Fig. 9 The figure is a front view showing a partial cross section of the measuring device, FIG. 10 is a side view of the measuring device, and FIG. 11 is a side view of the grain tank shaft support. 1. Threshing device 5. Grain tank 9 fists, transfer spiral 10. Grain thrower - 33φ, support shaft No. 4 , Incident Display Patent Application No. 58-079691 2,
Name of the invention: Grain tank 3 in a combine harvester; Relationship with the case of the person making the amendment Applicant: 667-1, Iya-cho, Higashiizumo-cho, Hetaku-gun, Shimane Prefecture (187
) Mitsubishi Agricultural Machinery Co., Ltd. Representative Bengami Sambei 5, date of amendment order August 30, 1980)
6. Drawings to be corrected

Claims (1)

[Claims] In a combine harvester in which a threshing device and a grain tank are mounted in parallel on a machine base, the outer lower part of the grain tank is pivoted to the machine base so as to be able to take over the grain, and a grain frying device is provided on an end wall of the grain tank. A grain tank for a combine harvester, characterized in that a cylinder stands up from a lower part outside the center of gravity of the grain tank outward and upward.