JPH06257944A - Stirring device of grain storage vessel - Google Patents

Abstract

PURPOSE:To provide a stirring device of a grain storage vessel wherein when grains are loaded in addition, the grains do not collide with a running and migrating supply car having an stirring tool and, besides, an excess stirring only at a specific portion in the vessel can not occur. CONSTITUTION:When an additional loading of grains into a storage vessel is executed, in order to prevent loaded grains from colliding with a first supply car 10, the first supply car 10 is made to stop automatically at another position away from a grain loading portion T, and a secondary supply car and stirring tools 33 and 34 are so formed as to be made to stop.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stirrer for a rectangular grain storage tank called a square bottle, and particularly to a stirrer adapted to stir the grains stored in the tank evenly in the vertical direction. To move in two directions orthogonal to each other.

[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. As one of them, a large-capacity storage tank, so-called round bottle, as shown in FIG. 8 is known.
The overall shape is a cylindrical shape having a roof, a floor member 513 is provided in the vicinity of the bottom of a large container 501 having a circular cross section, and a large number of ventilation holes are formed in the floor member 513. Further, the grain discharge port 51 is provided at the center of the floor member 513.
4 are provided. The blower 5 is provided below the floor member 513.
Hot air or air whose humidity and temperature are appropriately controlled is sent via 60 or the like.

Inside the container 501, the container 50 is horizontally rotated by an appropriate driving means around the center of the container.
1 is provided with a supporting member 524 supported on the upper part thereof, and a plurality of first stirring tools (augers) 530, 530 are vertically arranged with respect to the outer supporting member 524 and laterally with respect to the supporting member 524. It is movably attached. A plurality of second stirring tools (unloaders) 540 are provided horizontally on the floor member 513 in the radial direction with the grain discharge port 514 as the center.

By driving the augers 530 and 530 as needed at the time of drying or storage, the grains contained in the tank are stirred in the vertical direction as a whole, and the quality is deteriorated by transposing the upper and lower layers. I try to prevent it. However, in this case, there is an inconvenience that the floor member 513 to the height of the unloader 540 is not stirred due to the unloader 540.

In the conventional round bottle of this type, the unloader 540 corresponding to the second stirring tool is provided for the purpose of discharging the grains remaining after the natural discharging of the grains in the tank. The unloader 540 is driven at the time point when is stopped to move the residual grain toward the grain discharge port 514. Grain is discharged from the grain discharge hole 514 to the outside of the machine by a discharge conveyor 515 provided on the lower surface of the floor member 513, transferred to the upper side of the container 501 by an appropriate conveyor means (not shown), and charged again into the container 501 by a bin charging conveyor 516. Ruka is transported outside the tank.

As another form of the grain storage tank, a square bottle shown in FIG. 9 is known. This is usually provided in the preceding step of the thermal power dryer, and is used for the purpose of averaging the fluctuations in the amount of cargo received and reducing the initial moisture to some extent to reduce the load on the thermal power dryer. In this structure, a ventilation floor 661 is provided at a certain height below the floor of a square bin 660 assembled in a cubic shape by an iron plate, and a plurality of ventilation holes 662 and 662 are formed in the ventilation floor 661 and the ventilation floor 661 is formed. 66
A grain discharge port 664 for discharging the inside grain to the outside is provided at one end of No. 1. This large number of ventilation holes 66
2 and 662 are formed toward the grain discharge port 664, and discharge is performed by moving the grain by a wind having directionality without using an unloader.

A blower port 665 is provided on the side wall of the bottle 660.
The hot air from the appropriate combustion device is installed under the floor and the aeration floor 66.
By supplying the air between 1 and 1, by changing the deposition height, it is possible to perform some drying while responding to changes in the amount of cargo received. This is a relatively small storage tank.Normally, high-moisture grains immediately after cutting are piled up as thinly as possible to be pre-dried, and those that have been pre-dried are gradually piled up while moving to other square bottles. It is used as it fills up and finally receives the required amount of cargo. However, the square bottle 660 requires replacement work between the bottles and an empty bottle for replacement, which causes a problem that uneven water content in the upper and lower layers occurs.

[0008]

In the grain storage tank as described above, a large-capacity storage tank, a so-called round bottle, has a plurality of vertically agitating augers positioned vertically and each auger has a diameter of the tank. Since it is mounted so that it can move in any direction, the shell grains in the tank can be equally agitated by the action of the upper and lower augers, and even if the shell grains are located near the inner wall of the container, Even if the shell grains are located, the necessary upper and lower layers are transshipped. However, since this storage tank device is large and expensive, its use scale is naturally limited, and it was practically difficult to install this facility in small-scale farms. In addition, this round type has a disadvantage that when a plurality of them are juxtaposed in the front, rear, left and right, a dead space is created, and the grain storage amount is reduced by the dead space with respect to the occupied installation area. There is also a problem that the part is not stirred.

Therefore, in a relatively small-scale facility, a square bottle type storage tank is often used together with a thermal power dryer. However, since the conventional square bottle type storage tank does not have a stirring device, a difference in water content between the upper layer and the lower layer of the stored grain occurs during drying, and the moisture content of the grain in the thermal dryer increases. Therefore, as described above, this equipment is not mainly used for the purpose of drying, and the number of installations is usually determined by the maximum load received per day.

The inventor of the present invention can solve the above-mentioned inconveniences of a comparatively small-capacity square bottle and can perform not only preliminary drying or primary storage tank but also main drying and can function as a storage tank. In order to develop a square bottle, a stirrer was manufactured in which the stirrer was reciprocated simultaneously or selectively in two orthogonal directions in the square bottle. This stirrer
Basically, Japanese Patent Application No. 4-302 filed by the applicant earlier
No. 698, No. 315155, No. 317277, etc., the 1st trolley | bogie which is arrange | positioned so that a square bin may be bridged in the left-right direction, and can be reciprocated in the front-back direction. A second trolley mounted on the first trolley and reciprocating in the left-right direction of the storage tank; and a second trolley mounted vertically on the grain storage tank attached to the second trolley. It was equipped with a stirrer that can be rotated by rotating the stirrer, and when this stirrer was installed in a square bottle, an experiment was carried out. The grains and the shell grains in the upper layer could be transshipped, and by aeration from the bottom of the tank, high-quality shell grains without drying unevenness could be obtained and stored.

By the way, in the above-mentioned square bin, that is, in the square type grain storage tank, when the grain is stored therein, the stirring device (the trolley) is usually retracted near the front and rear ends of the tank. Grain is put into the grain feeding site in the center of the tank by a transport feeding means such as a packet conveyor. At first, the grain is deposited in a slightly raised state in the center of the tank, but the stirring device is activated after feeding. By performing the stirring operation by doing so, the central portion and the peripheral portion are evened to have substantially the same deposition height.

However, in the storage tank with the agitator as described above, the cut grain is usually transported by car and put into the tank, but since the amount is large, this is repeated many times. The grain is also put into the tank each time. In addition, grain with high water content will change in quality if it is not put into the tank early, so it is necessary to add grain multiple times. Therefore, instead of adding the grains into the tank at one time, the amount of grains in the tank can be increased stepwise by adding grains to the tank, or the amount of grains to be stored and dried at the time of stirring. In some cases, it is required to add additional grains into the tank even during agitation because of changes in the above.

As described above, when the grain is already put in the tank and the stirring work is performed, in other words, when the first carriage, the second carriage, and the stirring tool are traveling and moving. If you want to add more grain at random, if you randomly add additional grain, when the trolley crosses the grain loading site set in the center of the tank, the grain hits the trolley and the agitator malfunctions or falls into the tank. At the same time, there is a possibility that a serious problem that cannot be ignored, such as the grain adhered with oil falling into the grain in the tank upon hitting the device, may occur.

As a measure for avoiding such a problem, when additionally feeding grain, for example, the traveling position of the trolley is visually inspected and stopped when the trolley comes to a position outside the grain feeding site. Although it is possible to do so, it is necessary to climb to the upper part of the storage tank to see it, and repeating this is laborious and troublesome, and at the same time as the bogie stop position. Deviation easily occurs, and time loss also increases.

Further, when the cart is stopped at the time of additionally feeding the grain, if the stirring tool is continuously rotated, only a specific portion in the tank is excessively stirred, so that the grain in the tank is dried. There is a possibility that the degree and the like may vary and desired quality may not be obtained. In view of such a point, the present invention relates to a relatively small-capacity rectangular grain storage tank that can be used mainly for the purpose of drying and storing grains, and when the grains are additionally added, the grains are agitating tools. Reservoir for grains, which can be automatically stopped at an appropriate position so as not to hit a traveling mobile trolley accompanied with, and which is prevented from being excessively agitated only at a specific portion in the tank. It is an object to provide a stirring device for a tank.

[0016]

In order to achieve the above object, the stirring device for a grain storage tank according to the present invention basically comprises a grain storage tank having a grain center at the center of the tank. A first carriage that is arranged so as to bridge in the left-right direction and can reciprocate in the front-rear direction, and a second carriage that is mounted on the first carriage and can reciprocate in the left-right direction of the storage tank. And an agitator that is inserted into the storage tank and rotated while being attached to the second trolley, and is added to the first trolley when additional grain is added to the storage tub. In order to prevent the grain from hitting, the first trolley is automatically stopped at a position outside the grain feeding portion.

As a preferred mode of such an apparatus, the first
Is provided with a detecting means for detecting that the trolley has traveled to a position where the input grain does not hit, and when the additional grain is added based on the signal obtained from this detecting means, the first trolley deviates from the grain input part. In this case, it is desirable to place the detection means in the vicinity of the front and rear ends of the grain feeding part when viewed in the front-back direction of the storage tank.In addition, add grain to the storage tank. When throwing in,
In addition to stopping the traveling movement of the second carriage in addition to the first carriage, it is desirable to stop the rotation of the stirring tool.

[0018]

[Operation] In the stirrer for a grain storage tank according to the present invention configured as described above, for example, a trolley detection means is provided at a position outside the grain input site set in the center of the tank, and the grain detection means is provided. When it is detected that the first bogie has traveled to the position where the bogie detection means is located, the storage tank is stopped by stopping the motor for driving the first bogie. Before adding additional grain to
The trolley is automatically stopped at a position outside the central part of the tank, and the grain is additionally fed while the first trolley is stopped before the grain feeding site. To be done.

By doing so, it is possible to prevent the grain from hitting the agitator at the time of additional feeding, and of course, it takes less time and labor than the case where the cart is stopped by visual inspection. It is possible to surely and accurately stop at a desired position, time loss can be reduced, and labor can be saved. Further, the trolley detection means is arranged near the front and rear ends of the grain feeding portion as viewed in the front-rear direction of the storage tank, and when any of the trolley detection means detects the first trolley, the traveling is stopped. By doing so, the traveling distance of the first carriage, that is, the waiting time until the grain can be additionally charged can be shortened as much as possible, and the time loss can be suppressed.

In addition to this, when the grain is additionally charged into the storage tank, the traveling movement of the second carriage in addition to the first carriage is stopped and the rotation of the stirring tool is also stopped, so that the inside of the tank can be specified. Excessive agitation only at the points is avoided, the degree of agitation of the grains in the tank is made uniform, and the desired quality is maintained.

[0021]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 schematically shows an embodiment of an agitation device for a grain storage tank according to the present invention. This agitation device 100 is a square grain storage device having a square cross section (for example, length and width of about 4 m each). It is installed on the tank 1. Grain storage tank 1
Is composed of front and rear side wall portions 2 and 3 (partition wall portions), left and right side wall portions 4 and 5, and a bottom wall portion 6. In this example, the front and rear side wall portions 2 and 3 are lower than the left and right side wall portions 4 and 5 so that the traveling carriage 10 and the lateral moving carriage 30 (excluding the augers 33 and 34), which will be described later, can pass therethrough. ing. Although not shown in the figure, the bottom wall portion 6 is provided with a grain extraction port, and a myriad of fine holes for blowing out a drying gas (air or the like) by using, for example, a fine mesh member. -Shaped ventilation holes are formed so that the blow-out port faces the grain outlet, and when the grain is discharged, the grain is collected and discharged at the grain outlet by a directional wind flow.

In the storage tank 1, as shown by the alternate long and short dash line in FIG. 1, the central portion of the tank is a grain feeding portion T, and the grain feeding portion T is not shown from above the tank 1. Grains are thrown in by means of transporting and feeding means such as a packet conveyor. The stirring device 100 includes a traveling carriage 10 that is a first carriage and a lateral movement carriage 30 that is a second carriage. As shown in FIG. 2 (the front view of the main part), FIG. 3 (the view of the arrow A in FIG. 1), and FIG. 4 (the view of the arrow B in FIG. 1), In order to bridge between the pair of left and right wheel support portions 10A and 10B and the wheel support portions 10A and 10B which are movably mounted on the rails 8 and 9 provided on the left and right side wall portions 4 and 5, respectively. And a cylindrical rotating frame 20 which is arranged in the front and back and is rotated in both forward and reverse directions.

Each of the wheel supporting portions 10A and 10B has two wheels 11 rotatably supported on the lower side thereof, and a cored bar 21 projecting on both ends of the rotating frame 20 on the upper side thereof. Bearing part 14 for rotatably supporting
Is provided. Further, a frame-shaped trapezoidal frame 12 is attached to the wheel supporting portions 10A and 10B, and the wheel supporting portion 10A on the left side is rotatably driven on both sides of the trapezoidal frame 12 constituting the rotation driving mechanism. The motor 25 is mounted, and on the trapezoidal frame 12 of the right wheel support portion 10B, the motor 15 that constitutes the traveling drive mechanism and is rotationally driven in both forward and reverse directions is mounted.

The rotational driving force of the motor 25 provided on the left wheel support portion 10A is transmitted to the rotary frame 20 via a chain type power transmission mechanism 26 composed of a chain and a sprocket wheel, whereby the rotary frame 2
0 can be selectively rotated in the forward direction and the reverse direction. The rotational driving force of the motor 15 provided on the right wheel support portion 10B is generated by the chain type power transmission mechanism 1
Two wheels 1 axially supported by the wheel supporting portion 10B via 6
1 is transmitted to one of the wheels 1 and is also transmitted from the one wheel 11 to the other wheel 11 via the chain type power transmission mechanism 17, and the wheel support portion is also transmitted from the one wheel 11 via the drive shaft 19. 2 pivoted on 10A
It is transmitted to one of the individual wheels 11, and further transmitted from the one wheel 11 to the other wheel 11 via the chain type power transmission mechanism 17, and as a result, the traveling carriage 10 All of the four wheels 11 provided in the vehicle are rotated in the same direction (forward direction or reverse direction) at the same speed.

On the other hand, the lateral movement carriage 30 is composed of two carriage frames 30A and 30B assembled in a frame-shaped cross section, and these two carriage frames 30 are integrally connected by a connecting side plate 32. There is. The upper and lower inner sides of the bogie frames 30A and 30B are respectively circumscribed on the outer peripheral surface of the rotary frame 20 to vertically hold the rotary frame 20, and four on the upper side and four on the lower side, for a total of eight. Wheels 31 made of rubber tires are provided.

The wheels 31 are attached to the bogie frames 30A and 30B so as to have a predetermined inclination angle with respect to a line orthogonal to the axis C of the rotary frame 20, and as will be described later. And a horizontal moving carriage 3
0 is laterally moved in the direction along the axis C by the rotation of the rotary frame 20. Further, the cylindrical frame 2 in each of the bogie frames 30A and 30B of the lateral movement bogie 30.
Bearing portions 38 provided on them, which are closer to one side than 0,
The augers 33 and 3 are supported by two 39-point pivots.
4 rotatably hangs down, these augers 33, 3
4 is a pair of bevel gears 35, which are driven by motors 35 mounted on the upper sides of the bogie frames 30A and 30B, respectively.
It is adapted to be rotationally driven via 36.

In addition to the basic structure as described above, in the stirring device 100 of this embodiment, the traveling direction of the traveling carriage 10 is reversed in the vicinity of the side wall portions 2 and 3 in front of and behind the storage tank 1. As shown in FIG.
L-shaped stoppers 43 and 44 are fixed by bolts or the like to the portions located near the front and rear side wall portions 2 and 3, and
Limit switches 41 and 42 whose operation ends are pushed by the stoppers 43 and 44 are attached to the right wheel support portion 10B (see also FIGS. 2 and 4). The stopper 43 of the stoppers 43 and 44 is fixed on the side wall portion 5 of the storage tank 1'adjacent to the storage tank 1 so that the augers 33 and 34 can be brought as close as possible to the front side wall portion 2. In order to achieve this, traveling carriage 10
This is also for reversing the traveling direction when the laterally traveling carriage 30 has passed the front side wall portion 2 and has traveled to a position located on the storage tank 1'side.

Similarly, since the moving direction of the laterally moving carriage 30 is reversed near the left and right side wall portions 4 and 5 of the storage tank 1, the right wheel support portion is simply illustrated in FIG. 10B has a stopper 47, and also the left wheel support 1
The stoppers 48 are fixed to the 0A and the stoppers 48,
Limit switches 46 and 45 whose operating ends are pushed in by 47 are attached (FIG. 2,
(See also FIGS. 3 and 4).

Further, in addition to the above, in this embodiment, an inclination detecting mechanism 60 (details thereof are omitted) is provided on the motor 35 mounted on the truck frame 30B on the right side of the laterally moving truck 30. Furthermore, in the present embodiment, as shown in FIGS. 1, 2 and 4, the above-mentioned grain input is provided on the upper side wall portion 5 on the right side of the storage tank 1 when viewed in the front-back direction of the storage tank 1. Light receivers 51 and 52 as truck detection means are attached to the portions located near the front and rear ends of the portion T, respectively. On the other hand, the right wheel support portion 10B of the traveling truck 10 is provided with a hanging bracket 54. A light emitter 53, which constitutes an optical sensor together with the light receivers 51 and 52, is attached.

As shown in FIG. 5, the light receivers 51 and 52 have light receiving elements 51a and 52a built therein, and the light receiving elements 51a and 52a are exposed to the inside of the reservoir 1 through the light receiving windows 51b and 52b. Is horizontally fixed to the side wall portion 5 in a horizontal posture, the light emitting device 53 has a light emitting element 53a built therein, and the light emitting element 53a is in a horizontal posture with the side wall portion 5 side facing and the light receiving elements 51a and 52a It is held by the wheel support portion 10B via the bracket 54 so as to be at the same height position.

Therefore, when the traveling carriage 10 has traveled to a portion located in the vicinity of the front and rear ends of the grain feeding portion T as shown by the solid line and the one-dot chain line in FIG. 5 and the light from the light emitting element 53a is received by the light receiving element 51a,
It will be made incident on 52a. The light receiver 5
1, 52 and the light emitter 53 are respectively connected to a control unit (control panel) 50 via wiring as shown in FIG. 7, and when, for example, additional grains are to be added to this control unit 50. A closing mode switch 58 that is pressed to the side is attached.
When 8 is pressed, drive power is supplied to the light emitter 53, and when the light from the light emitter 53 is made incident on either of the light receivers 51 and 52, the detection signal from the light receiver 51 or 52 is controlled. It is supplied to the unit 50.

In this case, the control unit 50 is also supplied with the detection signals from the limit switches 41, 42, 45 and 46.
Based on their detection signals, the augers 33, 34
While controlling the power supply to the driving motors 35, 35, the motor 15 for driving the traveling carriage 10, and the motor 25 for rotating the rotating frame 20,
When supplied to the detection signals from the photodetectors 51 and 52,
The power supply to the motors 35, 35, 15, 25 is stopped to stop the rotation of the augers 33, 34 and the traveling movement of the traveling carriage 10 and the lateral traveling carriage 30.

In the stirrer 100 of the present embodiment configured as described above, when setting it, for example,
The traveling carriage 10 (augers 33, 34) is moved to the vicinity of the front side wall portion 2 and the lateral movement carriage 20 is moved to the rotating frame 20.
The motors 15, 25, 35 are activated when the preparations are complete. Then, Auger 3
3,34 rotate to stir the stored grain vertically,
The traveling carriage 10 travels in a direction from the rear side wall portion 3 to the front side wall portion 2, and the rotating frame 20 is rotated in the forward direction (clockwise when viewed from the direction of arrow A in FIG. 1) to move the lateral moving carriage 30. Moves laterally in the direction from the left side wall 4 to the right side wall 5.

Explaining this in detail, the lateral movement carriage 30
The wheels 31 are circumscribed on the outer peripheral surface of the rotating frame 20 at a predetermined inclination angle θ, and the augers 33, 34 attached thereto are inserted into the storage tank 1 to stir the stored grains vertically. As the rotating frame 20 is rotated, the co-rotation between the rotating frame 20 and the lateral movement carriage 30 is restricted by the resistance of the stored grain acting on the augers 33 and 34, and the rotating frame 20 is rotated. Due to the friction between the outer peripheral surface of the frame 20 and the wheels 31 of the horizontal moving carriage 30, the wheels 31 of the horizontal moving carriage 30 rotate so as to leave a spiral trajectory on the outer peripheral surface of the rotating frame 20, and the horizontal moving carriage 30 rotates. Frame 20
It is laterally moved so as to be screw-fed along the axis C of. Here, the lateral movement speed of the lateral movement carriage 30 is made considerably slower than the traveling speed of the traveling carriage 10.

In this way, when the traveling carriage 10 and the lateral movement carriage 30 travel and move, the traveling carriage 10 passes over the front side wall portion 2 and the augers 33, 34 move to a position close to the front side wall portion 2, The operating end of the limit switch 41 provided on the traveling carriage 10 abuts against the stopper 43 and is pushed in. Further, even when the traveling vehicle 10 travels in the opposite direction to the above, when the augers 33, 34 move to the position close to the rear side wall portion 3, the operating end of the limit switch 42 provided on the traveling vehicle 10 stops. It is pressed against 44. In this way, the limit switch 41,
When the control unit 50 detects that the operating end of 42 has been pushed in, the motors 15 and 25 are stopped, and the augers 33 and 34 are stopped for a predetermined period in a state of being closest to the side wall portion 2, After that, the motor 15
Is reversed and the traveling direction of the traveling carriage 10 is reversed, and the motor 25 is subsequently rotated in the same direction so that the lateral movement carriage 30 laterally moves.

Similarly, when the lateral moving carriage 30 and the augers 33, 34 move to the vicinity of the left and right side walls 4, 5, the limit switch 4 provided on the lateral moving carriage 30.
The operation ends of 5, 46 are pushed into the stoppers 47, 48 in abutment with each other. When the control unit 50 detects that the operation ends of the limit switches 45 and 46 are pushed in,
The rotation direction of the motor 25 is reversed, the rotation direction of the rotary frame 20 is reversed, and the movement direction of the lateral movement carriage 30 is reversed.

In this way, the traveling carriage 10 and the lateral movement carriage 30 are caused to reciprocate in the storage tank 1 so that the stored grains in the entire storage tank 1 are vertically stirred by the augers 33 and 34. Since this ordinary stirring operation itself is not directly related to the present invention, detailed description thereof will be omitted here. For a detailed description of the stirring operation itself, refer to Japanese Patent Application No. 5-22806 by the present applicant, if necessary.

Under the above configuration, when the grain is already charged in the storage tank 1 and the grain is additionally charged while the grain is being stirred by the stirring device 100, as described above, the control unit 50 is used. The closing mode switch 58 attached to is pressed. As a result, light is emitted from the light emitting device 53 provided on the traveling vehicle 10 toward the side wall portion 5. In this state, the grain has not yet been added, the traveling carriage 10 and the lateral movement carriage 30 are continuously moved, and the augers 33 and 34 are also rotated.

Then, when the light emitter 53 provided on the traveling carriage 10 moves to the front facing position of one of the two light receivers 51, 52 mounted on the side wall portion 5 together with the traveling carriage 10, The light from the light emitter 53 is made incident on the light receiver 51 or 52, whereby a detection signal is emitted from the light receiver 51 or 52 to the control unit 50. Upon receiving this detection signal, the control unit 50
The motors 35, 35 for driving the augers 33, 34, the motor 15 for driving the traveling carriage 10, and the motor 25 for rotating the rotary frame 20 are stopped to supply electric power to the augers 33, 34 for rotation and traveling. Dolly 1
0 and the traveling movement of the lateral movement carriage 30 are stopped.

In this way, after the augers 33, 34, the traveling carriage 10 and the lateral movement carriage 30 are stopped,
A transporting and feeding means such as a packet conveyor is activated to additionally feed a required amount of grain to the grain feeding site T of the storage tank 1. At the time of this additional charging, the traveling carriage 10 is stopped near the front and rear ends of the grain charging portion T when viewed in the front-rear direction of the storage tank 1 as shown by the solid line or the one-dot chain line in FIG. The grain is prevented from hitting the stirrer 100.

In this case, since the control unit 50 automatically stops the augers 33, 34, the traveling carriage 10 and the lateral movement carriage 30, it is more troublesome than when the traveling carriage 10 is stopped by visual inspection. Therefore, it becomes possible to stop the carriage 10 at a desired position reliably and accurately, time loss can be reduced, and labor can be saved. Further, the light receivers 51 and 52 serving as a vehicle detection means are arranged near the front and rear ends of the center of the storage tank 1 when viewed in the front-rear direction of the storage tank 1, and one of the light receivers 51 and 52 is a traveling vehicle. 10
When the vehicle is detected, the traveling vehicle 10 is stopped, so that the traveling distance of the traveling vehicle 10, that is, the waiting time until the additional grain can be added is shortened as much as possible, and the time loss is suppressed. be able to.

In addition to this, when the grain is additionally charged into the storage tank 1, the traveling movement of the lateral movement carriage 30 in addition to the traveling carriage 10 is stopped, and the rotation of the augers 33, 34 is also stopped. As a result, it is possible to avoid excessive stirring of only a specific portion in the storage tank 1, the stirring degree (drying degree, etc.) of the grains in the storage tank 1 becomes uniform, and the desired quality is maintained.

In the above embodiment, the light receivers serving as the carriage detecting means are arranged near the front and rear ends of the grain feeding portion T as viewed in the front and rear direction of the storage tank 1, but the above is not always the case. If it is not necessary to dispose the trolley detection means in two places and the waiting time until the additional grain can be added may be a little long, the trolley detection means can be seen in the front-rear direction of the storage tank 1 and the grain feeding portion T It is enough to provide one place at a position off.

Further, as in the above-mentioned example, the trolley detection means is stopped from being exclusively provided in the vicinity of the front and rear ends of the grain feeding portion T when viewed in the front and rear direction of the storage tank 1, and the stoppers 43, 44 for reversing the traveling trolley and The limit switches 41 and 42 may be used as the vehicle detection means. In this case, when the traveling carriage 10 comes near the front and rear ends of the storage tank 1 after the additional charging mode switch 58 is pressed, the carriages 10, 30 and the augers 33, 34 are stopped, and the detection means Dual use can be achieved, and the device cost can be reduced.

Further, as the trolley detecting means, in addition to the illuminator 53 provided on the trolley 10 and the light receivers 51 and 52 on the side wall portion 5 as in the above-mentioned example, for example, FIG.
As shown in FIG. 5, an operating rod 55 is attached to the wheel supporting portion 10B of the traveling vehicle 10, and a limit switch 56 is attached to the side wall portion 5 so that the operating end 56a is swingably operated by the operating rod 55. You can also In this case, the traveling carriage 10 is moved to the limit switch 5 after the grain input mode switch is pressed.
When passing through the position of 6, the operating end 56a switches from the solid line position (OFF state) in the figure to the position indicated by the one-dot chain line or two-dot chain line (ON state), which is detected by the control unit 50. Then, the traveling carriage 10 and the like are stopped.

Further, in the above-mentioned embodiment, the cylindrical frame type is shown as an example of the stirring device, but the stirring device is not limited to that, and for example, the chain previously proposed by the applicant of the present invention. Driven type (Japanese Patent Application No. 4)
-302698, 315155, -3172
No. 77, etc.), and those in which the first carriage and the second carriage are individually driven by motors (for example, described in Japanese Patent Application No. 4-22805). You can use one.

Further, in the above-mentioned embodiment, the one provided with two augers is shown, but one may be provided depending on the size of the storage tank, and of course, it can be arbitrarily selected.

[0048]

As can be understood from the above description, the agitation device for a grain storage tank according to the present invention has a relatively small capacity of a square type which can be used mainly for drying and storing grain. In the grain storage tank, when adding and adding grain, the cart can be automatically stopped at an appropriate position so that the grain does not hit the traveling moving carriage with the agitator, and It is possible to obtain an effect that it is possible to prevent only a specific portion from being excessively stirred.

[Brief description of drawings]

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

FIG. 2 is a front view of a main part of a stirring device according to an embodiment.

FIG. 3 is a left side view of the stirring device of the embodiment (view from A in FIG. 1).

FIG. 4 is a right side view of the stirring device according to the embodiment (view from B of FIG. 1).

FIG. 5 is a diagram which is used for describing an example of a trolley detection unit according to an embodiment.

FIG. 6 is a diagram which is used for describing another example of the trolley detection means of the embodiment.

FIG. 7 is a diagram simply showing a control system of the embodiment.

FIG. 8 is a schematic view for explaining an example of a conventional round bottle type grain storage tank and a stirring device.

FIG. 9 is a schematic view provided for explaining an example of a conventional square bin type grain storage tank.

[Explanation of symbols]

 1-grain storage tank 2-front side wall part (partition wall part) 3-rear side wall part (partition wall part) 4-left side wall part 5-right side wall part 10-traveling vehicle 10A, 10B-wheel support part 11-wheel 15-Running motor 20-Rotating frame 25-Rotation drive motor 30-Transverse trolley 31-Wheels 33,34-Auger 41,42-Limit switch 43,44-Stopper 50-Control unit 51,52-Receiver 53 -Light emitter 55-Operation rod 56-Limit switch 100-Stirrer

Claims (4)

[Claims] 1. A first trolley, which is arranged so as to bridge a rectangular grain storage tank having a grain center as a grain input portion in the left-right direction and can reciprocate in the front-rear direction, A second carriage mounted on a first carriage and reciprocating in the left-right direction of the storage tank; and an agitator that is inserted into the storage tank and rotated while being attached to the second carriage. In order to prevent the input grain from hitting the first trolley at the time of additionally feeding the grain to the storage tank, the first trolley is automatically placed at a position outside the grain input site. A stirring device for a grain storage tank, which is characterized in that it is stopped. 2. A detection means is provided for detecting that the first trolley has traveled to a position outside the grain feeding portion, and the first trolley is moved to the grain feeding portion based on a signal obtained from the detecting means. The stirring device for a grain storage tank according to claim 1, characterized in that the stirring device is stopped at a position away from it. 3. The stirrer for a grain storage tank according to claim 2, wherein the detection means are arranged in the vicinity of the front and rear ends of the grain feeding portion as viewed in the front-back direction of the storage tank. 4. When first adding grain to the storage tank, the first
The stirrer for a grain storage tank according to claim 1, wherein the traveling movement of the second cart in addition to the cart is stopped and the rotation of the stirrer is stopped.