JP2873124B2 - Grain drying equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cereal drying apparatus for storing cereals in a cereal tank provided in the machine body and for supplying the drying air while circulating and flowing the cereals for drying.

[0002]

2. Description of the Related Art In order to dry grains, a circulating grain drying apparatus is used in which the grains are circulated and flown in a machine to supply drying air to dry the grains.

[0003] In this type of grain drying apparatus, a grain tank for accommodating grains is provided in a body formed in a box shape by the machine wall, and the grain that has been stuck is accommodated in this grain tank. Below the grain tank, an air guide path and an exhaust path are formed by a gas-permeable partition, and a space between the air guide path and the exhaust path is a grain distribution lower path through which grains flow down. Further, the air guide path is connected to the burner, and the exhaust path is connected to the suction exhaust fan.

[0004] When drying the grain, the drying air is sent from the air guide channel to the grain distribution lower route, and the grain flows down the grain distribution route from the grain tank sequentially, and is dried by being exposed to the drying air at this time. Further, the grain after passing through the grain distribution lower road is transported again to the grain layer.

[0005] Here, in such a grain drying apparatus, the amount of grain contained (sticked) in the grain tank is determined according to the amount of grain.
Drying operation is performed by setting operating conditions (drying conditions) such as hot air temperature, the amount of hot air supply, and grain circulation speed. In this case, as a means for confirming the amount of grain stored in the grain tank, this has conventionally been performed visually through a display window. That is, through holes are formed at predetermined intervals along the vertical direction in the side wall of the machine corresponding to the grain tank, and a display window is provided by fitting a transparent plastic plate into the through holes.
Thereby, the grain stored in the grain tank can be visually recognized through the display window, and the amount of grain stored can be confirmed.

Incidentally, since the body of the grain drying apparatus is relatively large (for example, about 2 to 5 m in height), the conventional grain storage amount checking means as described above requires the body (grain tank). The display window provided at the top is, of course, less visible than the display window provided at the bottom, and when a large amount of grain is stored, the confirmation of the grain capacity tends to be inaccurate. there were. In particular, the grain drying apparatus is often installed in a relatively dim place, and it has often been difficult to reliably confirm the grain capacity. Therefore, if you can only confirm such inaccurate grain capacity,
It is not possible to set appropriate operating conditions for the drying operation.

[0007] In this case, a sensor for detecting the grain storage amount by irradiating electromagnetic waves from the ceiling portion of the grain tank to accurately check the grain storage amount has been proposed, but is extremely expensive. In addition, a means of arranging a number of limit switches along the vertical direction on the side wall of the machine corresponding to the grain tank to check the grain capacity has been proposed, but since the configuration uses a number of limit switches, As a whole, it is expensive, and its mounting work is complicated.

[0008] As described above, it is still insufficient that any conventional grain holding means can accurately check the grain holding amount and realize it at a low cost. There was room for

[0009]

SUMMARY OF THE INVENTION In view of the above facts, the present invention makes it possible to accurately confirm the grain storage amount regardless of the installation location of the apparatus and the amount of grain, and realize this at low cost. The aim is to obtain a grain drying device.

[0010]

According to a first aspect of the present invention, there is provided a grain drying apparatus including a grain tank for accommodating grains in a body formed in a box shape by a machine wall. A base portion formed of a transparent transparent material, having a predetermined rigidity and provided separately at predetermined intervals, and a long continuous shape formed of a light-transmitting transparent material, and A pressure receiving portion which is provided at a predetermined interval and is compressed and deformed by an external pressing force, and a switch which is disposed between the base and the pressure receiving portion and which is electrically connected by the deformation of the pressure receiving portion to detect the deformation of the pressure receiving portion. And a level sensor in which the pressure receiving portion is configured to be foldable at a separated portion of the base portion, and the pressure receiving portion is located on the side of the grain tub and communicates with the grain tub in a state where the pressure receiving portion communicates with the grain tub. On the outer surface of the machine wall Is characterized in that attached was.

[0011] A grain drying apparatus according to a second aspect of the present invention is a grain drying apparatus in which a grain tank for accommodating grains is provided in a body formed in a box shape by a machine wall. A base portion provided separately at every interval, and a pressure receiving portion formed continuously in a long shape and provided in a state of being separated from the base portion by a predetermined distance and compressed and deformed by an external pressing force; A switch portion disposed between the base portion and the pressure receiving portion to conduct by the deformation of the pressure receiving portion and detect the deformation of the pressure receiving portion, wherein the pressure receiving portion is configured to be foldable at a separated portion of the base portion. A level sensor is mounted on the inner peripheral surface of the machine wall of the grain tub in a state where the pressure receiving section is located on the grain tub side.

[0012]

[0013]

[0014]

[0015]

In the grain drying apparatus according to the first aspect, when the grain is stored in the grain tank provided in the machine body (when the grain is stuck), the pressure of the level sensor attached in a state of communicating with the grain tank is received. The part is pressed and deformed by the stored grain. Thus, the switch of the level sensor is turned on, and the deformation of the pressure receiving unit is detected. That is, since the deformation of the pressure receiving portion is performed at a portion where the grain exists, the presence of the grain is detected.

Therefore, by arranging the level sensor at a portion corresponding to the desired storage capacity of the grain tank, the desired grain storage capacity can be automatically confirmed. In this case, the grain storage amount can be continuously (analogly) detected and confirmed.

Further, even when the airframe is constructed in a large size or installed in a relatively dim place, it is possible to accurately check the grain capacity, and to obtain appropriate operating conditions for the drying operation. Can be set. Further, since the level sensor has a simple configuration as described above, the cost is low, and the level sensor is simply mounted on the outer peripheral surface of the machine wall, so that the mounting operation and the like become easy. Furthermore, since the base and the pressure receiving portion of the level sensor are formed of a transparent material, not only the presence of the grain can be detected simply by the conduction of the switch portion, but also the grain can be visually confirmed directly through the base and the pressure receiving portion. be able to. Therefore, it is possible to more accurately and reliably grasp the grain amount. In addition,
Since the pressure receiving portion formed in a long shape is configured to be foldable at a separated portion of the base portion, for example, when the level sensor is shipped or packed as a single component, it does not become bulky, and is transported and stored. In this case, workability is also improved.

In the grain drying device according to the second aspect, when the grain is stored in the grain tank provided in the machine body (when the grain is stuck), the level sensor attached to the inner peripheral surface of the machine wall of the grain tank. Is pressed by the stored grain and is compressed and deformed. Thus, the switch of the level sensor is turned on, and the deformation of the pressure receiving unit is detected. That is,
In this case as well, the deformation of the pressure receiving portion is performed at a portion where the grain exists, so that the presence of the grain is detected.

Therefore, the grain storage capacity can be automatically checked by arranging the level sensor in a portion corresponding to the desired storage capacity of the grain tank, or the pressure receiving section and the switch section can be provided at a plurality of locations (a plurality of locations). ), It is possible to continuously (analogly) detect and confirm the grain storage amount.

Further, even when the airframe is constructed in a large size or installed in a relatively dim place, it is possible to accurately check the grain capacity, and to obtain appropriate operating conditions for the drying operation. Can be set. Further, since the level sensor has a simple configuration as described above, the cost is low, and the level sensor is simply mounted on the inner peripheral surface of the grain tank, and the mounting operation and the like are facilitated. Further, since the pressure receiving portion formed in a long shape is configured to be foldable at a separated portion of the base portion, for example, when the level sensor is shipped or packed as a single component, it does not become bulky and can be transported. Workability during storage and storage is also improved.

[0021]

[0022]

[0023]

[0024]

FIG. 1 is an overall perspective view of a grain drying apparatus 10 according to the present invention, and FIG. 2 is an enlarged perspective view of a main part of the grain drying apparatus 10. FIG. 3 is a longitudinal sectional view of the grain drying apparatus 10, and FIG. 4 is a longitudinal sectional view taken along line 4-4 in FIG.

The body 12 of the grain drying apparatus 10 is formed in a box shape that is vertically high and long in the front and rear direction by a pair of left and right side walls 14, a front wall 16, a rear wall 18, a ceiling wall 20, and a bottom wall 22 as machine walls. ing.

The upper internal cavity of the body 12 is a grain tank 24. A drying section 26 is provided below. A pair of air-permeable exhaust passage partitions 28 are spanned in the drying section 26 in a funnel shape in front and rear directions (between the front wall 16 and the rear wall 18) in a front view (FIG. 3). An exhaust passage 30 is formed between the exhaust passage partition wall 28 and the side wall 14.

A pair of air-permeable air-guiding path partitions 32 are extended in the longitudinal direction of the body in parallel with the air-discharge path partitions 28 on the inner side of the air-discharge path partition 28 as in the case of the exhaust-path partitions 28. ing.
The upper part of the air guide path partition 32 is bent toward the inside of the machine, and the upper ends are continuously connected to each other. For this reason, a portion surrounded by the opposing air guide path partition 32 is a rhombus-shaped air guide path 34 in a front view.

A gas permeable partition wall 36 is disposed between the upper part of the exhaust path partition wall 28 and the upper part of the air guide path partition 32, and like the air guide path 34, an auxiliary air guide path 38 having a rhombic shape in a front view. Is provided.

In the grain tank 24, the space between the air guide path 34 and the auxiliary air guide path 38, the area between the auxiliary air guide path 38 and the exhaust air path 30, and the space between the air guide path 34 and the exhaust air path 30 are provided. Downstream road 4 where grain flows down
It is 0.

One end of the exhaust path partition wall 28 and one end of the air guide path partition 32 are connected to the front wall 16. As shown in FIG. 4, a wind guide passage 42 is formed in the front wall 16 and communicates with the wind guide passage 34. A burner 44 for generating dry air is disposed at the lower end of the air guide passage 42. For this reason, the drying air generated by the burner 44 is sent to the air guide path 34 through the air guide communication path 42.

On the other hand, the exhaust path partition wall 28 and the air guide path partition 32
Is connected to the rear wall 18 so that the wind guide path 34 and the downflow path 40 are shielded at the rear end of the fuselage. Therefore, the drying air sent to the air guide path 34 is sent to the downflow path 40 and then discharged to the exhaust path 30. At this time, the grains in the downflow path 40 are dried by flowing down below the downflow path 40 while receiving the drying air sent from the air guide path 34.

An opening 46 is formed in the rear wall 18 corresponding to the exhaust path 30 and an exhaust duct 48 is attached to the rear wall 18. An exhaust communication path 50 communicating with the exhaust path 30 is formed by the rear wall 18. Have been. In addition, a suction exhaust fan 52 for exhaust air is disposed at the center of the exhaust air communication passage 50.
Therefore, when the suction exhaust fan 52 is operated, the burner 44
The drying air generated by this is sent from the air guide path 34 to the exhaust air path 30, and is discharged out of the machine body 12 through the exhaust air communication path 50.

Immediately above the exhaust duct 48 is a hot air duct 54.
Is attached, and the rear wall 18 forms a wind guide passage 56. The air guide passage 56 communicates with the air guide passage 34 via an opening 58 formed in the rear wall 18, and also communicates with the auxiliary air guide passage 38 via an opening 60. Therefore, a part of the drying air sent to the air guide path 34 by the suction exhaust device 52 is sent to the auxiliary air guide path 38 through the opening 60 after being sent from the opening 58 to the air guide communication path 56, and further. It is configured to be discharged from the auxiliary air guide passage 38 to the exhaust air passage 30.

Each lower end of the downflow passage 40 is connected to the exhaust passage partition wall 2.
8 and a shutter drum 64 via an outlet 62 formed between the lower end inclined portion of the air guide passage partition 32.

The shutter drum 64 has a hollow cylindrical shape whose axis is horizontal, and has a slit-shaped notch with a predetermined width along the axial direction formed in a part of the outer periphery. The shutter drum 64 rotates around the axis, and the notch and the outlet 62 are rotated.
The grain in the downflow path 40 flows into the inside of the shutter drum 64 through the notch, and the grain that flows in is discharged by rotating the shutter drum 64 to the state in which the notch faces downward through the notch. You.

Below the shutter drum 64, a side wall 14 is provided.
A pair of sinking flow plates 66 tapered downward toward the central portion therebetween is disposed. Further, a lower portion of the side wall 14 is provided with a
Is provided, and the cereal can be inserted into the body 12.
For this reason, the grains discharged from the shutter drum 64 and the grains stuck from the setting hopper 68 are
Thus, the sheet is conveyed to a substantially central portion between the side walls 14.

At the lower end of the sinking plate 66, a lower screw conveyor 70 for conveying grains is provided. The lower screw conveyor 70 is disposed in the longitudinal direction of the fuselage 12, and is configured to send out the grain entering between the spiral blades on the outer periphery to the front wall 16 side.

An elevator 72 is provided outside the front wall 16 so as to receive the grain conveyed by being connected to the lower screw conveyor 70. In the elevator 72, grain transport buckets 74 are attached to the endless belt at regular intervals, and the grains delivered from the lower screw conveyor 70 and accumulated at the lower end can be lifted and transported to the top of the body 12. .

One end of an upper screw conveyor 76 corresponds to the upper end of the elevator 72, and can receive the grain transported by lifting. Screw conveyor 7
The other end of 6 extends to the longitudinal center of the body 12, and a rotary equator 78 having a vertical axis is disposed immediately below the other end of the upper screw conveyor 76. Therefore, the upper screw conveyor 76 causes the airframe 12
The grain conveyed to the upper central portion of the machine falls down onto the rotary equalizer 78, and is uniformly distributed and distributed to the grain tank 24 in the body 12 by centrifugal force when the rotary equalizer 78 rotates.

A grain outlet 80 is provided below one end of the upper screw conveyor 76 so that the grain after the drying process can be taken out of the machine body 12.

As shown in detail in FIG. 2, a through hole 82 is formed in a portion corresponding to the grain tub 24 along the vertical direction on the front wall 16 of the body 12 having the above configuration, and a level sensor 90 is provided. Are located.

The level sensor 90 is formed in a band shape as a whole, and has a thin and long base 92 as shown in detail in FIGS. The base portion 92 is formed of a transparent plastic plate having a relatively high rigidity and a light transmitting property, and has a substantially U-shaped cross section. In this embodiment, the width dimension is about 20 mm, and the height (thickness) dimension at both ends is set. Is about 2mm
It has been. A pressure receiving portion 94 is integrally fixed to the base portion 92. The pressure receiving portion 94 is formed in a sheet shape from a thin transparent plastic plate having a relatively low rigidity (having elasticity) and having a light transmitting property, and is fixed with a gap provided between the pressure receiving portion 94 and the base portion 92. I have. When a predetermined pressing force acts on the pressure receiving portion 94 from the direction of arrow A in FIGS. 6 and 7, the pressure receiving portion 94 is compressed and deformed toward the base 92.

A switch 96 is arranged in a gap between the base 92 and the pressure receiving part 94. The switch unit 96 includes a plurality of fixed overlay contacts 98 and a plurality of crossbar moving contacts 100. The overlay fixed contact 98 is formed in a pattern by a conductive material on a sheet 102 attached to the base 92, and is integrally attached to the base 92. On the other hand, the crossbar moving contact 100 is integrally fixed to the pressure receiving portion 94 and corresponds to the overlay fixed contact 98. The crossbar moving contact 100 comes into contact with the overlay fixed contact 98 and conducts (closes the circuit) when the pressure receiving portion 94 is pressed and deformed by compression. The plurality of fixed overlay contacts 98 and the plurality of crossbar moving contacts 100 are provided at predetermined intervals along the longitudinal direction of the base portion 92 and the pressure receiving portion 94, and are provided independently of each other.

The level sensor 90 having the above-described structure is held by a rail 84 fixed around the through-hole 82 formed in the front wall 16 so as to face the through-hole 82. Is attached in a state of being positioned on the grain tank 24 side. Therefore, the pressure receiving portion 94 of the level sensor 90 communicates with the grain tank 24 through the through hole 82, and the grains contained in the grain tank 24 can press the pressure receiving portion 94. Also, the level sensor 90 and the through hole 82
The grain tank 24 can also be visually recognized from the outside of the body 12 via. A plurality of overlay fixed contacts 98 and crossbar moving contacts 100 of the level sensor 90 are connected to a grain amount display unit (not shown) provided on an operation panel 86 via a connector 104 provided at a lower end of the level sensor 90. )
Are electrically connected to each other, and the conduction of each contact can be displayed.

Next, the operation of the grain drying apparatus 10 having the above configuration will be described. The circulating system (lower screw conveyor 70, elevator 72, upper screw conveyor 76, rotary equalizer 78) of the grain drying device 10 is driven to insert the grain. Then, the hopper 68 on the lower side of the body 12
Is released and the grain is stuck into the body 12. The stuffed grain is guided by the stuffing sink 66 and is fed to the lower screw conveyor 7.
Transported to 0. The transported grain is sequentially transported to the elevator 72 side by the lower screw conveyor 70, and further scooped and transported by the bucket 74 of the rotating elevator 72. The grain lifted and conveyed above the machine body 12 by the elevator 72 is sent to the upper central portion of the machine body 12 by the upper screw conveyor 76, and stored in the grain tank 24 in the machine body 12 by the rotary equalizer 78.

After the end of the insertion, the grain is fed out by rotating the shutter drum 64, and further, the burner 44 is ignited and the suction air blower 52 is driven. Through the air guide path 34. The dry air sent into the air guide path 34 passes through the air guide path partition 32 and is directly supplied to the grains in the downflow path 40. The dry air after absorbing the moisture of the grains passes through the exhaust air path partition 28, reaches the exhaust air communication path 50 via the exhaust air path 30, and is discharged outside the body 12. In addition, a part of the drying air sent into the air guide path 34 is transmitted from the opening 58 to the air guide
After being fed into the auxiliary air guide passage 38 through the opening 60 after being supplied to the cereal, the water is supplied to the cereal in the flow passage 40 through the partition 36 from the auxiliary air guide, and absorbs the moisture of the cereal. , And is discharged to the exhaust path 30.

On the other hand, the grains in the downflow path 40 pass through the outflow port 62 by the rotation of the shutter drum 64 and are guided and conveyed again by the filling plate 66. The transported grain is repeated in the machine body 12 as needed until the desired moisture content is reached, and is again lifted and transported by the elevator 72 before being taken out of the grain outlet 80.

Here, in order to start the drying operation,
When storing grains in the grain tank 24 in the
The pressure receiving portion 94 of the level sensor 90 attached in a state of being communicated with is pressed and deformed by the stored grain. As a result, the crossbar moving contact 100 of the switch unit 96 comes into contact with the overlay fixed contact 98 to conduct (ON), and the deformation of the pressure receiving unit 94 is detected. Since the deformation of the pressure receiving portion 94 is performed at a portion where the grain exists, the presence of the grain is detected. That is, the amount of grain stored in the grain tub 24 can be automatically and continuously (analogly) detected and confirmed by the plurality of overlay fixed contacts 98 and crossbar moving contacts 100 provided.

Therefore, the operating conditions (drying conditions) such as the hot air temperature, the amount of the hot air to be supplied, and the grain circulation speed are appropriately set in accordance with the amount of the grains contained (sticked) in the grain tank 24. Drying operation can be performed.

The plurality of overlay fixed contacts 9
8 and the number of the crossbar moving contacts 100 can be set as desired. For example, by setting a large number, it is possible to detect the grain amount more finely. Also,
The crossbar moving contact 100 and the overlay fixed contact 98 located at the top of the crossbar moving contact 100 and the overlay fixed contact 98 of the switch unit 96 are connected to the grain tank 2
When the grain storage unit 4 is attached corresponding to the grain storage expiration position, the expiration state of the grain stored in the grain tank 24 can be detected. For example, a buzzer or a lamp is activated by this detection signal (conduction of the switch unit). With this setting, the expiration state of the grain tank 24 can be automatically checked, and it is not necessary to provide another special means such as a grain expiration sensor.

Further, even when the body 12 is configured to be large or installed in a relatively dim place,
It is possible to accurately confirm the grain storage amount, and it is possible to set appropriate operating conditions for the drying operation. Further, since the level sensor 90 has a simple configuration as described above, the cost is low, and the level sensor 90 can be mounted simply by being fitted into the rail 84 of the front wall 16, thereby facilitating the mounting operation and the like.

When the level sensor 90 is used for a model having a different size (in other words, a grain storage capacity) of the machine body 12 (the grain tank 24), this level sensor 90 is used in accordance with the model having the largest grain storage capacity. The sensor 90 is manufactured, and the grain capacity is small (therefore, the height of the body 12 is low).
When attaching the level sensor 90 to another model, it can be applied by cutting and using an unnecessary upper part. Therefore, the range of application is widened. Naturally, the level sensor 90 may be set (prepared) in advance for each model having a different grain storage capacity.

In this embodiment, the overlay fixed contact 9 constituting the switch section 96 of the level sensor 90
8 is applied to the sheet 102 adhered to the base 92, but the sheet 102 is not particularly essential, and as shown in FIG.
2 may be directly provided integrally. Further, in this embodiment, as the switch section 96 of the level sensor 90, the overlay fixed contact 98 and the crossbar moving contact 1
Although the configuration using 00 is used, a switch having another configuration, for example, a general membrane switch may be used. Also in this case, similarly to the above-described embodiment, the amount of cereal stored in the cereal tank 24 can be confirmed accurately and reliably.

In the above embodiment, the grain tank 24
Although the through hole 82 is formed in the front wall 16 corresponding to the above, and the level sensor 90 is arranged corresponding to the through hole 82, the present invention is not limited to this. Is also good. Further, the level sensor 90 is not limited to be attached to the outside of each machine wall. As shown in FIG. 9, the pressure receiving portion 94 is attached to the inner peripheral surface of the side wall of the grain tank 24 in a state where the pressure receiving section 94 is located on the grain tank 24 side. Is also good. In this case, the base 92 and the pressure receiving portion 94 of the level sensor 90 do not need to be formed of a transparent material, and there is no need to provide the through holes 82 and the rails 84 in the machine wall, which further reduces the cost. In this case, the level sensor 9
As a means for attaching 0, a double-sided adhesive tape, a magnet, or the like can be used.

Further, in the above-described embodiment, the level sensor 90 is formed in a continuous belt shape by the thin and long base portion 92 and the pressure receiving portion 94.
May be separately provided at predetermined intervals, and the pressure receiving portion 94 may be configured to be foldable at the separated portion of the base 92. That is, as shown in FIG.
The pressure receiving portion 114 is continuously formed in a long shape, and the base portions 112 are separately provided at predetermined intervals.
The pressure receiving portion 114 may be configured to be freely foldable at the separation portion 2.

According to the level sensor 110, since the pressure receiving portion 114 formed in a long shape can be folded at the separated portion of the base 112, for example, the level sensor 110 is shipped or packed as a single component. It does not become bulky when carrying out, and the workability at the time of transportation and storage is also improved.

[0057]

As described above, the grain drying apparatus according to the present application has the following excellent effects.

In the grain drying apparatus according to the first aspect, regardless of the installation location of the apparatus and the amount of grain (in other words, when the apparatus is installed in a dark place or the apparatus is configured to have a large grain storage capacity and a high apparatus). ), It is possible to accurately confirm the grain capacity, and this can be realized at low cost. Further, not only the presence of the grain can be simply detected by the conduction of the switch unit, but also the grain can be confirmed by direct visual observation, and the grain amount can be more accurately and reliably grasped. Furthermore, the level sensor does not become bulky when it is shipped or packed as a single part, and the workability during transportation and storage is improved.

In the grain drying apparatus according to the second aspect, the grain storage amount can be accurately confirmed irrespective of the installation location of the apparatus and the amount of grain, and this can be realized at lower cost. Further, the level sensor does not become bulky when it is shipped or packed as a single component, and the workability during transportation and storage is improved.

[0060]

[0061]

[0062]

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a grain drying apparatus according to an embodiment of the present invention.

FIG. 2 is an enlarged perspective view of a main part of the grain drying device showing a level sensor.

FIG. 3 is a longitudinal sectional view of the grain drying device.

FIG. 4 is a longitudinal sectional view of the grain drying apparatus taken along line 4-4 in FIG. 3;

FIG. 5 is a schematic overall configuration diagram of a level sensor.

FIG. 6 is a cross-sectional view of the level sensor taken along line 6-6 in FIG.

FIG. 7 is a longitudinal sectional view of the level sensor taken along line 7-7 in FIG.

FIG. 8 is a cross-sectional view corresponding to FIG. 6, illustrating another example of the level sensor.

FIG. 9 is a perspective view corresponding to FIG. 2 and showing another example of mounting the level sensor.

FIG. 10 is a schematic side view showing another example of the level sensor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Grain drying apparatus 12 Airframe 16 Front wall (machine wall) 24 Grain tank 82 Through hole 84 Rail 90 Level sensor 92 Base 94 Pressure receiving part 96 Switch part

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F26B 17/14 F26B 25/00 F26B 25/12

Claims (2)

(57) [Claims] To 1. A machine wall by the body that is configured in a box shape, the grain drying apparatus grain tank is provided for cereals accommodated, is formed by a light transmitting transparent material have a predetermined rigidity plants
A base that is provided separately for each constant interval, the light transmission properties of breathable
A pressure receiving portion which is continuously formed in a long shape with a bright material and is provided at a predetermined distance from the base portion and which is compressed and deformed by an external pressing force; and disposed between the base portion and the pressure receiving portion. a switch unit for detecting the deformation of the pressure receiving portion is conducted by the deformation of the pressure receiving portion is, Ri consists,
The pressure receiving part is freely foldable at the separated part of the base
Grain drying apparatus characterized by a level sensor that consists, the pressure-receiving portion is attached to the machine wall outer peripheral surface of the grain tank in a state communicating with the grain tank located on the side of the grain tank. To 2. A machine wall by the body that is configured in a box shape, the grain drying apparatus grain tank is provided for cereals housing, that provided separately at predetermined intervals have a predetermined stiffness A base, a pressure receiving portion formed continuously in a long shape and provided at a predetermined distance from the base, and compressed and deformed by an external pressing force; and a pressure receiving portion disposed between the base and the pressure receiving portion. It is a switch unit for detecting the deformation of the pressure receiving portion is conducted by the deformation of the pressure receiving portion, formed Ri from the group
The pressure receiving part is configured to be foldable at the separated part of the part
Grain Drying and wherein the level sensor that will be, in that the pressure-receiving portion is attached to the machine wall peripheral surface of the grain tank in a state positioned on the side of the grain tank.