JPH08280242A - Stirring device for storage tank for grain - Google Patents

Abstract

PURPOSE: To provide a stirring device for a storage tank for grain by lowering height of a part protruded on the storage tank, capable of being properly attached to the storage tank without interfering a conveyor for throwing in grain to be preserved, a roof, etc., even in an established grain drying and treating apparatus. CONSTITUTION: Second trucks 20 laterally movably loaded on first trucks 10 traveling on running rails 115 so as to bridge right and left frames with rails are arranged lower than the traveling rails 115 and dropped in a storage tank.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has an agitator capable of agitating grains stored in a square-shaped grain storage tank called a square bottle in the same vertical direction. The present invention relates to a stirring device for a grain storage tank, which is configured to perform a stirring operation while reciprocating in two directions orthogonal to each other simultaneously or selectively.

[0002]

2. Description of the Related Art Grains, particularly rice and wheat, are required to be stored and stored after being dried to a predetermined water content after harvesting in order to maintain quality such as taste and suppress deterioration, and therefore many treatments are required. Facilities have been proposed and used, and various grain storage tanks have been used. Among them, the relatively small-capacity square grain storage tank has been used only as a preliminary drying or primary storage tank in the past.
Recently, in order to be able to perform main drying and the like in such a rectangular grain storage tank having a relatively small volume, it is necessary to install a stirring device capable of uniformly stirring the stored grain in the storage tank. Has been strongly requested.

In order to meet such a demand, the applicant of the present application has previously proposed an auger (auger screw) capable of agitating stored grains in the vertical direction as a stirring device suitable for the rectangular grain storage tank. It has been proposed that a so-called stirrer is reciprocated simultaneously or selectively in two orthogonal directions in a rectangular grain storage tank. This stirrer is basically configured as illustrated in FIGS. 4 to 6, as described in, for example, Japanese Patent Application No. 6-325656, which will be briefly described below. To do. If a detailed configuration is required, the applicant of the present application may file the above-mentioned Japanese Patent Application No. 6-3.
See, for example, 25656.

The grain drying treatment facility 500 shown in FIG.
For a square grain with a square cross-section of two (2 sets) in the vertical (front-rear) direction and a large number in the horizontal (left-right) direction (for example, 6 sets, 12 rows) with one set of two stirring tanks 200 as one set Reservoir (A-1, A-2), (A-3, A-4), ..., (B-
1, B-2), (B-3, B-4), ... are connected in series, and each storage tank A-1, A-2 ,. The partition wall portions 2 ', 3'), the left and right side wall portions 4, 5 (common partition wall portions 4 ', 5')) and the bottom wall portion. Although not shown in the figure, the bottom wall portion is provided with a grain extraction port, and a myriad of pore-shaped vent holes for blowing a drying gas (air or the like) by using, for example, a fine mesh member. The grain outlet is formed so as to face the grain outlet, and when the grain is discharged, the grain is collected and discharged to the grain outlet by a directional wind flow.

The agitator 200 installed in the grain drying treatment facility 500 has a pair of left and right frames 1 with rails installed inside (closer to the center of the tank) than the left and right side walls 4, 5.
2, 12 and two storage tanks (A-1, A-2) are arranged on the pair of left and right traveling rails 14 and 15 provided on the rail-equipped frames 12 and 12 in a traveling state. The first carriage 10 has a narrow frame shape and has a pair of wheels 10a mounted on both ends thereof. And
A second trolley is mounted on the first trolley 10 so as to straddle the two storage tanks (A-1, A-2) and be laterally movable.

As shown in FIG. 5, one end side (motor 36 side) of the rail-equipped frame 12 is partially attached with a traveling rail 14 (15) and an upper chain guide 74 thereof. The horizontal rail portion 12A and the lateral vertical edge portions 12B and 12B at both ends, and the traveling rail 14 (15) is floated considerably above the upper surface P of the storage tank (A-2). It is located in.

The first carriage 10 has a pair of left and right L-shaped wheel support portions 10f having a pair of wheels 10a, 10a at both left and right ends and a pair of left and right gates provided at both ends of the main body portion 10A. The rotation shafts 53a, 5 of the sprocket wheels 53, 54 so as to penetrate the top side of the shape supporting portion 10d.
4a is inserted through bearings 75 and 76 so that the entire main body 10A of the first carriage 10 can swing along the traveling direction with the rotary shafts 53a and 54a as pivots. .

Further, in the first carriage 10, a pair of left and right gate-shaped support portions 1 provided at both ends of the main body portion 10A.
Lower portions of 0d and 10d are extended below the wheel 10a, and a pair of left and right gate-shaped support portions 10d and 10d are provided.
A pair of front and rear rails 18 and 19 for lateral movement are installed between the lower ends of the rails in a direction transversely crossing the storage tank. A second trolley 20 is mounted on the lateral movement rails 18 and 19, and the second trolley 20 is mounted on the wheels 10 of the first trolley 10.
is located below a and has its entire length in the storage tank A-
It is made longer than the inner size of 1, A-2 by a predetermined length (Fig. 6).
A pair of wheels 20a, 20a are provided at portions closer to the center by a predetermined length from both ends when viewed in the lateral movement direction. Further, augers 23 and 24 are rotatably attached to both ends of the second trolley 20, and the auger 23 is stored in a storage tank A-2 and the auger 24 is stored in a storage tank A-1.
It is designed to be inserted and rotated in each case.

The first carriage 10 is provided with two storage tanks (A-1, A-2) by the first traveling drive mechanism 30.
In addition to being reciprocated in a direction traversing between the front and rear side wall portions 2 -partition wall portions 2 '(3'), the second carriage 20 is moved by the second traveling drive mechanism 40 to each storage tank (A).
-1, A-2) can be reciprocated in a direction crossing between the left and right side wall portions 4-5.

As can be seen from FIG. 6, the first traveling drive mechanism 30 has a pair of sprocket wheels arranged on the upper corners of both ends of the frame 12 on the left side (reservoir A-2 side). 31A, 32A and a left-hand side winding transmission device 3 including an endless annular traveling chain 33 wound around it and rotated (circulating) in the front-rear direction.
0A, a geared motor 36 that drives this winding transmission device 30A via a chain-type power transmission mechanism 49, and a pair arranged on both upper corners of the right side (reservoir A-1 side) frame 12 Sprocket wheel 31B,
32B and an endless annular traveling chain 34 wound around it and rotated (circulating movement) in the front-rear direction.
Drive shaft (not shown) that connects the right-hand side winding transmission device 30B and the left and right sprocket wheels
And pulling chains 70, 70 for connecting the traveling chains 33, 34 to both side portions of the first carriage 10.

On the other hand, the second carriage 20 driven by the second traveling drive mechanism 40 is arranged below the wheels 10a of the first carriage 10 and has a total length of each storage tank A-1, As a result of being made longer than the inner dimension of A-2 by a predetermined length, the moving direction (left-right direction) of the second carriage 20 is shown as the leftmost moving position (position moved to the leftmost side) in FIG. The tip end portion seen in FIG. 2 can pass through the gate-shaped support portion 10d, and can be further moved to a position where it passes under the traveling rails 14 and 15 of the first traveling drive mechanism 30.

In the stirrer 200 having such a structure, when the traveling motor 36 and the stirrer motor are activated, the winding transmission devices 30A and 30B are activated and the first carriage 10 is pulled by the chain. 70, 70 is pulled by the traveling chains 33, 34 through the chains 33,
While reciprocating in the direction traversing between the front and rear side wall portions 2 and 3 at the same speed as 34, the augers 23 and 24 rotate to perform the stirring operation of the stored grain, and the first cart 10 and the second truck 10
Together with the truck 20 of FIG. 1, the storage tanks (A-1, A-2) are reciprocally moved in a left-right direction in a zigzag-shaped trajectory, whereby the stored grains in the storage tank are agitated vertically over the entire area ( For details, refer to the above specification etc.).

[0013]

Generally, a plurality of rectangular storage tanks, which are required to be provided with the agitator as described above so as to be able to perform main drying and the like, are usually provided in a grain drying treatment facility. Tanks are often lined up side by side, and more than 10,000 have already been constructed in Japan alone. Thus, in a grain drying treatment facility in which a large number of rectangular storage tanks are arranged side by side, if the agitating device as described above can be installed in each storage tank, high-moisture paddy can be piled up high. An increase in the air volume ratio improves the drying loss rate, eliminates the need for rotation work, and makes it possible to stack paddy with different moisture contents.
It is possible to expect great effects such as uniform quality of the whole by stirring and mixing.

However, when the agitating device as described above is installed in the rectangular storage tank, the following problems may occur. That is, in the agitator 200 described above, the traveling rails 14 and 15 of the rail-equipped frame 12 are arranged in a state of being floated considerably above the upper surface P of the storage tank (FIG. 5), and the second rail. The trolley 20 is arranged below the traveling rails 14 and 15 so that it can pass under the traveling rails 14, 15, but it is positioned above the upper surface P of the storage tank. Therefore, the side end vertical side portion 1 of the frame 12 with rails
2B and 12B are made long, and the height from the upper surface P of the storage tank to the upper end of the rail-equipped frame 12 or the upper end of the motor 36, in other words, the height of the portion protruding above the storage tank is considerably high.

However, in an existing grain drying treatment facility equipped with a rectangular storage tank, a conveyor for storing stored grain is usually arranged on each storage tank and a roof is provided so as to cover all storage tanks. Therefore, if the upper surface of the storage tank and the grain feeding conveyor or the roof are not opened so much, it is not possible to arrange the frame with the tall rail as described above, and therefore, the storage tank cannot be arranged. It is not possible to install a stirrer in.

In view of the above point, the present invention reduces the height of the portion projecting above the storage tank so that even in the existing grain drying treatment facility, the storage is appropriately performed without interfering with the stored grain input conveyor or roof. An object of the present invention is to provide a stirring device for a grain storage tank that can be installed in the tank.

[0017]

In order to achieve the above object, a stirring device for a grain storage tank according to the present invention basically comprises a traveling rail installed in a rectangular grain storage tank. A pair of left and right frames with rails, a first trolley mounted on the traveling rail so as to bridge between the pair of rail-mounted frames, and the first trolley. A second trolley mounted in a laterally movable state, a stirrer attached to the second trolley and inserted into the storage tank, a motor for rotationally driving the stirrer, and the first stirrer. A first traveling drive mechanism that reciprocates one trolley in a direction that traverses between the front and rear side wall portions of the storage tank, and a second traveling drive mechanism that reciprocates the second trolley in a direction that traverses the left and right side wall portions. And a traveling drive mechanism.

The second trolley is disposed below the traveling rail and is dropped into the storage tank. In a preferred aspect of the present invention, the traveling rail is installed closer to the tank center than the left and right side wall portions of the grain storage tank, and the tip end of the second carriage seen in the lateral movement direction is the traveling rail. One that is designed to pass through and move to the outside.

Specific examples of the basic constituent parts of the present invention include:
The first traveling drive mechanism has a first winding transmission device having an endless annular first transmission member wound in the front-rear direction of the grain storage tank, and the first winding transmission device. A driving motor, and a connecting tool that connects the first transmission member and the first carriage, the second traveling drive mechanism is engaged with the first transmission member, A rotating member for extracting power, which is rotated in accordance with a relative speed difference between the rotating member, an input shaft to which the rotation of the rotating member is transmitted, and a gear box having an output shaft arranged orthogonal to the input shaft, A second winding transmission device having an endless annular second transmission member that is wound in the left-right direction of the storage tank and driven by the output shaft below the gear box, and the second transmission member. From a connector for connecting the second trolley, Those Tsu, and the like.

The stirrer of the present invention is suitable for being installed in a storage tank of an existing grain drying treatment facility, but is not limited thereto and may be used in a storage tank of a grain drying treatment facility to be newly constructed. Of course, it can be installed. In addition, as the grain drying treatment facility according to the present invention, rectangular grain storage tanks are horizontally arranged side by side, and the above stirring devices are installed in these storage tanks, and the stored grain is put on each storage tank. There is a conveyor for use, and a roof is provided so as to cover all storage tanks.

[0021]

[Operation] In the agitation device for a grain storage tank according to the present invention configured as described above, the second carriage is disposed below the traveling rail and is dropped into the storage tank. The rail-equipped frame has a short height, and the traveling rail is arranged on the upper surface of the side wall portion of the storage tank or in the tank without being lifted upward from the storage tank.

Therefore, the height of the portion projecting above the storage tank can be made considerably lower than that shown in FIG. 6 described above, and as a result, the space between the top surface of the storage tank and the grain storage conveyor or roof is increased. Even if it is not opened so much, the frame with rails can be arranged, and the stirring device can be appropriately installed in the storage tank without interfering with the stored grain feeding conveyor, the roof, or the like.

By dropping the second trolley into the storage tank, the stirring tool can be moved only to a position slightly farther from the side wall than the conventional one (the second trolley is located on the side wall). Although there is a risk of collision, the stirring range of the agitator (auger) for storing grains (the range in which the grains can be swapped vertically, a circular shape when viewed from above) is fairly wide, and the stored grains near the side wall are Since it is within the stirring range, no trouble occurs.

Further, by installing the traveling rails (frames with rails) on which the first trolleys are mounted on the inside of the left and right side wall portions of the rectangular storage tank, a large number of side-by-side connections are provided. When the stirring device is installed in a rectangular grain storage tank, two traveling rails are arranged on both sides of the side wall (partition wall portion) that separates the storage tanks with a required gap. Therefore, there is an advantage that a space for maintenance and inspection can be secured on the side wall portion.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of an agitator for a grain storage tank according to the present invention will be described with reference to the drawings. 1 to 3 show an embodiment of an agitating device for a grain storage tank according to the present invention. In the illustrated example, parts corresponding to the respective parts of the agitating device 200 shown in FIGS. The same reference numerals are given to omit or simplify the description. Further, since the parts not appearing in the figure and the parts not given the reference numerals are basically configured in substantially the same manner as the respective parts described above,
Please also refer to FIGS. 4 to 6 in the following description.

The stirring device 100 is installed in the rectangular grain storage tank 1. The storage tank 1 has front and rear side wall portions 2 and 3 and left and right side wall portions 4,5 made of concavo-convex steel plate panels, and has a structure in which posts 110 are arranged at four corners.
A frame 112 with a rail is arranged so as to bridge between the front side wall 2 and the rear side wall 3. As shown on the left side wall portion 5 side in FIG. 2, the left and right rail-equipped frames 112 have a lateral side portion 112A to which the traveling rails 114 (115) and the chain guides 74 located above them are attached. And a side end vertical side portion 112B, 112B at both ends, which is an elongated frame shape.
2B and 112B do not project downward from the traveling rails 114 (115), and the side end vertical side portions 112B and 11B are formed.
2B and the lower ends of the traveling rails 114 (115) are located substantially on the same plane as the upper surface P of the storage tank 1.

Further, the left and right frames 11 with rails are provided.
As can be seen by referring to the plan view of FIG. 1, the reference numerals 2, 112 are located closer to the center of the tank than the left and right side walls 4, 5 respectively, that is, inside the side walls 4, 5 in a plan view, The side end vertical side portions 112B and 112B are the front and rear side wall portions 2,
It is attached and fixed to the support plate portions 116, 116 arranged on the upper part 3.

Then, the left and right frame with rails 1
The rail 11 for running so as to bridge 12, 112
The first trolley 10 is mounted in a state in which it can travel on 4,115. The first carriage 10 includes a pair of wheels 10
a and a pair of left and right L-shaped wheel support portions 10f and a main body portion 10A having a pair of left and right gate-shaped support portions 10d, the wheel support portion 10f and the gate-shaped support portion. Rotating shafts 53a, 54 of sprocket wheels 53, 54 (described later) so as to penetrate the top side of 10d.
a is inserted through a bearing, and the entire main body portion 10A of the first truck 10 has the rotating shafts 53a, 54a.
It is configured so that it can be swung along the traveling direction with a as a pivot.

Further, in the first carriage 10, the lower portions of the gate-shaped supporting portions 10d, 10d of the main body portion 10A are extended below the wheels 10a and the traveling rails 114, 115 (see FIGS. 2 and 2). 3), a pair of front and rear lateral movement rails 18 and 19 are installed in a direction transversely crossing the storage tank 1 so as to connect lower end portions of the pair of left and right gate-shaped support portions 10d and 10d.

A second carriage 20 is mounted on the laterally moving rails 18 and 19. Most of the second carriage 20 is arranged below the wheels 10a of the first carriage 10, and the main body 20A including the motors 21, 22 and the like is dropped into the storage tank 1, and , A pair of wheels 20a, 20a are provided at positions closer to the center by a predetermined length from both ends when viewed in the lateral movement direction. Also, the second
Two augers 23 and 24, which are inserted into the storage tank 1 and are rotated, are axially supported at both ends of the carriage 20.
The augers 23 and 24 are motors 21 and 22, respectively.
Is rotatably driven by the belt-pulley type power transmission mechanism 28, 29.

The first carriage 10 is driven by the first traveling drive mechanism 30 to form the front and rear side wall portions 2 of the storage tank 1.
-3 so that the second carriage 20 can be reciprocated in a direction traversing between the left and right side wall portions 4-5 of the storage tank 1 by the second traveling drive mechanism 40. Has become. The first traveling drive mechanism 3
The 0 and first traveling drive mechanisms 40 have the same configurations as those described above. That is, the first traveling drive mechanism 30
Is a first winding transmission device including endless annular traveling chains 33 and 34 wound in the front-rear direction along the rail-mounted frames 114 and 115, and drives the first winding transmission device. Motor 36 and pulling chains 70, 70 as a connecting tool for connecting the traveling chains 34, 35 and the first carriage 10.

The second traveling drive mechanism 40 engages with the traveling chains 33 and 34, and is rotated by a relative speed difference between the traveling traveling chains 33 and 34, and a sprocket wheel 53 for power extraction, and the sprocket wheel 53. A gear box 57 having an input shaft 55 to which rotation is transmitted and an output shaft 56 arranged orthogonally to the input shaft 55, and laterally of the gear box 57, the gear box 57 is wound in the left-right direction of the storage tank 1. A second winding transmission device having an endless annular lateral movement chain 58 driven by the output shaft 56 via the sprocket wheel 51, and the lateral movement chain 58 and the second carriage 20 are connected. And a turn arm 65 as a connecting tool.

In this example, the leftmost moving position (solid line and broken line) and the rightmost moving position (dotted line) of the second carriage 20 are shown in FIG.
As shown in FIG. 5A, the tip of the second carriage 20 viewed in the moving direction (left-right direction) is the gate-shaped support portion 10d.
It can be moved to a position where it can pass through the underside of the traveling rails 114, 115.

Although not particularly shown, the first carriage 1
0 or the second trolley 20 has an auger 23, 24 (the main bodies of the second trolley 20 and the first trolley 10) due to the fact that they are inclined at a certain angle or more along the traveling direction, in other words, due to the resistance of the stored grain or the like. Inclination detection including a mercury switch or the like for detecting that the inclination angle of the part 10A) with respect to the vertical line is equal to or greater than a set value (for example, 15 °) and that the augers 23 and 24 are restored to the posture along the vertical line. A means is additionally provided so that the traveling of the first bogie 10 is stopped when the augers 23, 24 are inclined in the traveling direction by a set value or more, and is resumed when the posture is restored along the vertical line. .

As described above, the stirring device 1 of this embodiment
In 00, the second trolley 20 is moved to the traveling rail 11
Since it is arranged below 4,115 and is dropped into the storage tank 1, the right and left rail-attached frames 112, 1
12 is made short, and the traveling rails 114 and 115 are arranged at a height position substantially equal to the upper surface P of the side wall portion of the storage tank 1 without being lifted upward from the storage tank 1.

Therefore, the height of the portion projecting above the storage tank 1 is made considerably lower than that described above, and as a result, when the upper surface of the storage tank 1 and the grain storage conveyor or roof are not so opened. Also, the rail-equipped frame 112 can be arranged, and the stirring device 100 can be appropriately installed in the storage tank 1 without interfering with the stored grain feeding conveyor, the roof, or the like.

By dropping the second carriage 20 into the storage tank 1, the augers 23 and 24 can be moved only to a position slightly far from the side walls 2 to 5 as compared with the conventional one (the first one). 2 cart may collide with the side wall portion), but the agitated grain agitating range of the augers 23 and 24 (the range in which the stored grains can be exchanged in the vertical direction, a substantially circular shape when viewed from above) is considerably wide, and the side wall portions 2 to 2 Since the stored grains around 5 are also within the stirring range of the augers 23 and 2, no trouble occurs.

The traveling rails 114, 115 on which the first carriage 10 is mounted (frames 112, 1 with rails).
12) is installed inside the left and right side wall portions 4 and 5 of the rectangular storage tank 1, so that the stirring device 100 is installed in a large number of rectangular grain storage tanks that are arranged side by side. In addition, two traveling rails 114 and 115 are arranged on both sides of the side wall portion (partition wall portion) for partitioning the storage tanks with a required space, and the side wall portion for maintenance and inspection is provided. The advantage that the space can be secured is obtained.

The above is the chain drive type stirring device 1.
No. 00 has been described, but the present invention is not limited thereto, and another agitation device that allows the auger to reciprocate simultaneously or selectively in two orthogonal directions, such as a motor for traveling movement, is mounted on a carriage. Of course, it can be applied to a self-propelled type. Further, the case where one agitating device 100 is installed in one storage tank has been illustrated, but in the case where one agitating device is commonly used in a plurality of storage tanks (the traveling drive mechanism and the like are shared), the installation is performed. Of course, the present invention can also be applied.

Further, in the above example, the inside of one storage tank is agitated by two augers, but the number of augers can be arbitrarily set according to the capacity of the storage tank and the like. Needless to say, the inside of the storage tank may be agitated with one or three or more augers.

[0041]

As can be understood from the above description, in the stirring apparatus for the grain storage tank according to the present invention, the second trolley is placed below the traveling rail and dropped into the storage tank. Since the frame with rails is made shorter, it is possible to make the height of the part protruding above the storage tank considerably lower, and as a result, the space between the top surface of the storage tank and the grain storage conveyor or roof can be opened much. Even if it is not installed, it is possible to arrange the frame with rails, and it is possible to properly install the stirring device in the storage tank without interfering with the grain feeding conveyor, roof, etc. .

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a stirring device for a grain storage tank according to the present invention.

FIG. 2 is a view on arrow A in FIG.

FIG. 3 is a view on arrow B of FIG.

FIG. 4 is a plan view for explaining an example of the stirring device proposed previously.

5 is a partial side view showing the main part of the stirring device of FIG.

6 is a partial front view showing a main part of the stirring device of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Grain storage tank, 2, 3 ... Front and rear side wall parts, 4, 5 ... Left and right side wall parts, 10 ... 1st trolley, 10a ... Wheels, 10A
... Main body portion, 10d ... Gate-shaped support portion, 18,19 ... Rails for lateral movement, 20 ... Second carriage, 20a ... Wheels, 23,24
... Auger, 30 ... First traveling drive mechanism, 40 ... Second traveling drive mechanism, 100 ... Stirring device, 112 ... Frame with rail, 112A ... Horizontal side portion, 112B ... Side end vertical side portion,
114, 115 ... Rails for traveling

Claims (4)

[Claims] 1. A pair of left and right rail-equipped frames having traveling rails, which are installed in a rectangular grain storage tank.
A first carriage mounted on the traveling rail so as to be bridged between the pair of frames with rails, and a first carriage mounted on the first carriage in a laterally movable state. 2 trolleys, a stirrer attached to the second trolley and inserted into the reservoir, a motor for rotationally driving the stirrer, and the first trolley in front and rear of the reservoir. A first traveling drive mechanism that reciprocates in a direction traversing between the side wall portions; and a second traveling drive mechanism that reciprocates the second carriage in a direction traversing between the left and right side wall portions, A stirrer for a grain storage tank, wherein a second trolley is disposed below the traveling rail and is dropped into the storage tank. 2. The running rail is installed closer to the center of the tank than the left and right side walls of the grain storage tank, and the tip end of the second carriage seen in the lateral movement direction passes through the running rail. The agitating device for a grain storage tank according to claim 1, wherein the agitating device is for moving to the outside. 3. A first winding transmission device, wherein the first traveling drive mechanism has an endless annular first transmission member wound in the front-rear direction of the grain storage tank, and the first winding transmission device. It comprises a motor for driving the winding transmission device, and a connector for connecting the first transmission member and the first carriage, and the second traveling drive mechanism is the first transmission member. Has a rotating member for power extraction that is engaged with and is rotated in accordance with a relative speed difference with it, an input shaft to which the rotation of the rotating member is transmitted, and an output shaft arranged orthogonal to the input shaft. A gear box, a second winding transmission device having a second transmission member of an endless annular shape which is wound on the lower side of the gear box in the left-right direction of the storage tank and driven by the output shaft; Second transmission member and the second
2. A stirrer for a grain storage tank according to claim 1, further comprising a connecting tool for connecting the trolley with the trolley. 4. The rectangular grain storage tanks are horizontally arranged side by side, and the stirring device according to claim 1 is installed in each of the storage tanks, and a conveyor for feeding stored grain is provided on each storage tank. A grain drying treatment facility that is arranged and has a roof that covers all storage tanks.