JP6804018B2 - Grain weight measuring device of grain dryer - Google Patents

Description

The present invention relates to a grain weight measuring device that measures the weight of stored grains in a grain dryer that dries grains such as rice.

The grain dryer stores and circulates the grains and dries them to a predetermined moisture content. However, if the drying time is too early, the grains will crack, so heating according to the weight of the stored grains. Dry while controlling the speed.

In the grain drying control device of the grain dryer described in Patent Document 1, weight detection sensors are provided at the bottom four corners of the grain dryer, and the drying rate is controlled by the grain weight detected by the weight detection sensor. ..

Japanese Unexamined Patent Publication No. 62-13481

In the conventional grain dryer, since the weight detection sensors are provided at the bottom four corners of the grain dryer, the weight detection sensors are liable to break down due to moisture from the ground, and it is necessary to lift the machine for maintenance or replacement. It is difficult to work.

An object of the present invention is to make it easy to perform maintenance and replacement work in a grain dryer so that a weight detection sensor that measures the weight of stored grains is less likely to break down.

The above-mentioned problem of the present invention is solved by the following technical means.

The invention according to claim 1 is provided with a grain storage portion (2) and a drying portion (3) in a housing formed by a side wall (21) supported by vertical columns (20) erected at four corners, and the drying portion is provided. The grain outlet of the part (3) is provided with a rotary valve (10) that allows a predetermined amount of grains to flow down while rotating, and a lower transfer device (9) of the grain collecting part (4) that sends the grains to the elevator part (5). ), And the upper transfer device (8) connected to the upper side of the elevator section (5) supplies the spread grain to the diffusion plate (14) of the storage section (2), whereby the stake grain is transferred to the storage section (8). 2) is configured to be deposited and stored on the entire surface
The burner (6a) supplies hot air to the hot air chamber (11) of the drying section (3) to dry the grains.
A notch (20a) is provided in the vertical support (20) that supports the grain dryer (1) incorporating the storage portion (2) and the drying portion (3) of the grains, and the notch portion (20a) is provided. A weight measuring unit (23) having a built-in weight detection sensor (42) for detecting the strain generated in the vertical column (20) due to the weight of grains in 20a) is integrally removed from the outer surface of the vertical column (20). Assembled as possible,
The weight measuring unit (23) is formed in a triangular pyramid shape, and the shape of the notch (20a) is made into a non-penetrating shape that matches the shape of the weight measuring unit (23).
The weight detection sensor (42) detects the weight fluctuation of the grains accumulated in the storage portion (2), and if it is determined that the detected weight fluctuation is the weight fluctuation due to the earthquake, the burner (6a) is extinguished. It is a grain weight measuring device of a grain dryer characterized by controlling.
In the first invention related to the present invention, a notch 20a is provided in a vertical column 20 supporting a grain dryer 1 incorporating a grain storage portion 2 and a drying portion 3, and the notch 20a is filled with grains. The grain weight measuring device of the grain dryer is characterized in that a weight measuring unit 23 incorporating a weight detecting sensor 42 for detecting strain generated in the vertical column 20 due to the weight of the grains is integrally assembled.

The second invention related to the present invention is characterized in that the weight measuring unit 23 is removably assembled on the outer surface of the vertical column 20, and the grain of the grain dryer of the first invention related to the present invention is characterized. It is a grain weight measuring device.

In the present invention, since the weight measuring unit 23 is attached to the vertical column 20 of the grain dryer 1, the weight detecting sensor 42 in the weight measuring unit 23 does not receive moisture from the ground and is exposed to humidity. There is no fear of failure.
In the first invention related to the present invention , the weight measuring unit 23 is attached to the vertical column 20 of the grain dryer 1, so that the weight detecting sensor 42 in the weight measuring unit 23 receives moisture from the ground. There is no risk of failure due to humidity.

In the second invention relating to the present invention, in addition to the effect of the first invention relating to the present invention, without moving the body of the grain dryer 1, remove the weight measuring unit 23 from the vertical column 20 exchange It will be easier to do.

It is a side sectional view of a grain dryer. It is a front sectional view of a grain dryer. It is a side sectional view of the grain dryer support. It is a perspective view of the grain dryer column of another embodiment. It is a partial side sectional view of the grain dryer support stand of another embodiment. It is a perspective view of the grain dryer support part of another 1st Example. It is an exploded perspective view of the grain dryer support part of another 2nd Example. It is an exploded perspective view of the grain dryer support part of another third embodiment. It is a side sectional view of the grain dryer support part of the 3rd Example. External view from the front of the grain dryer External view from the side of the grain dryer

An embodiment specifically configured based on the above technical idea will be described below with reference to the drawings.

FIG. 1 is a side sectional view of the grain dryer according to the first embodiment, and FIG. 2 is a front sectional view. The grain dryer 1 has a storage unit 2 for accommodating and storing threshed grains by a combine or the like in a housing formed by side walls 21 supported by vertical columns 20, 20, 20, 20 standing at four corners. The drying section 3 that dries with hot air while flowing down the grains from the storage section 2 and the grain collecting section 4 for collecting the grains that have flowed down from the drying section 3 and transferring them to the storage section 2 again are sequentially stacked from above. It has a structure arranged in a row.

The grain outlet of the drying section 3 is provided with a rotary valve 10 that allows a predetermined amount of grain to flow down while rotating, and is received by a lower transfer device 9 of the grain collecting section 4 that sends the fed grain from the drying section 3 to the elevator section 5. By supplying the spread grain to the diffusion plate 14 of the storage chamber 2 by the upper transfer device 8 connected to the upper side of the elevator portion 5, the stake grain is uniformly deposited and stored on the entire surface of the storage chamber 2.

A burner 6a for heating the outside air is provided at the front position of the drying unit 3, and a hot air supply unit 6 for supplying hot air to the hot air chamber 11 is arranged. At the rear position, the exhaust air is sucked and discharged from the exhaust air chamber 12. An exhaust air exhaust unit 7 including a fan 7a is arranged.

As shown in FIG. 2, in the present embodiment, the upper form of the hot air chamber 11 which is a tubular body is formed at the mountain-shaped branch top by the left and right inclined surfaces so as to smooth the flow of grains. The ventilation chambers 12 are provided in pairs on the left and right, and the grains are separated and flow down into the respective grain flow passages 13 branching from the storage unit 2 to the left and right.

Regarding the drying portion 3, a plurality of grain flow-down passages 13 having an upper end communicating with the storage portion 2 are provided, and below that, the grains are discharged to the left and right of the central hot air chamber 11 so as to sandwich the grain flow-down passages 13. The air chamber 12 is formed. The grain flow passage 13 in the portion sandwiched between the hot air chamber 11 and the exhaust chamber 12 is a grain passage having a wire mesh structure through which hot air can permeate, and both lower ends join the rotary valve 10 to be downward. Facing the grain collection section 4.

The hot air supply unit 6 is provided with a far-infrared radiator 32. A mountain-shaped cover 33 is provided above the far-infrared radiator 32. The mountain-shaped cover 33 has an axis parallel to the axis of the hot air chamber, which is similar to the shape of the upper part of the tubular hot air chamber 11. The cover 33 is for preventing straw debris and the like that have fallen through the wire mesh material of the grain flow passage 13 from falling on the high-temperature far-infrared radiator 32. In this embodiment, the mountain-shaped scraper 22 is superposed on the cover 33 and slides in the axial direction on the cover 33, so that the straw debris accumulated on the cover 33 can be removed. In addition, deposits on the mountain-shaped scraper 22 can also be removed by operating the mountain-shaped scraper 22.

The mountain-shaped scraper 22 is installed on the cover 33 so that one end thereof is in contact with the inner wall of the back plate 3b of the drying portion 3. The front-rear length of the mountain-shaped scraper 22 is 1/3 to 1/2 of the distance between the front plate 3a and the back plate 3b of the drying portion 3. The mountain-shaped scraper 22 is provided with a scraper portion 22a having one or more notches in the axial direction of the cover 33.

The scraper portion 22a formed by this notch is formed by cutting out a mountain-shaped top portion on which straw dust and the like are most deposited to form a hole portion, and in the present embodiment, the scraper portion 22a has a square hole shape when viewed from the side surface direction. The shape of the hole is not limited to the square shape as in this embodiment, but since the mountain-shaped scraper 22 needs to remove the deposits on the top of the branch top, the axial direction of the hole corresponding to the top. It is necessary that the dimension of is smaller than the operating amount L of the sliding operation of the mountain-shaped scraper 22. With such a configuration, it is possible to remove a wide range of deposits only by operating a short slide distance L substantially equal to the length of the scraper portion 22a on the top of the mountain-shaped scraper 22 in the slide direction. it can.

An electric motor 40 with a speed reducer is provided inside the operation panel 34 on the dryer side in order to slide the mountain-shaped scraper 22.

A notch 20a is formed in one of the four vertical columns 20 that support the housing of the grain dryer 1, and the load cell 42 is a weight detection sensor in accordance with the notch 20a. The weight measuring unit 23 incorporating the above is attached with the bolt 24. The weight measuring unit 23 is formed in a triangular pyramid shape in the embodiment of FIG. 3, and is formed in a square block shape in FIG. Weight measuring unit With this configuration, the load in the housing applied to the support column 20 is transmitted to the load cell 42, and the weight of the grains accumulated in the storage unit 2 is detected. According to the configuration of FIG. 3, the weight measuring unit 23 can be easily inserted into the notch 20a and can be easily retrofitted as an optional item. According to the configuration of FIG. 4, once inserted and mounted, the mounting configuration becomes strong and it is easy to maintain the accuracy of weight measurement. Further, according to the configurations of FIGS. 3 and 4, one weight measuring unit 23 is sufficient, so that the cost is low.

FIG. 5 shows another embodiment of the weight measuring unit 23 provided with the support base 31 provided with the load cell 42 at the bottom of the bottom plate 19 supporting the four vertical columns 20, and the nut 29 is welded to the lower side of the bottom plate 19. A support base 31 is provided at the lower part of the tip of the height adjusting bolt 30 screwed into the nut 29, and the load cell 42 and the grounding base 27 are vertically incorporated in the downward tray 28 of the support base 31. A guide ring 28a for receiving the tip of the height adjusting bolt 30 is provided on the upper surface of the support base 31. Reference numeral 18 is a caster wheel.

In this embodiment, since the load cell 42 is not directly grounded, a failure due to dust or water is prevented.

FIG. 6 shows another embodiment of the weight measuring unit 23, in which the cam 43 is supported on the grounding base 27 by the support shaft 35, and the cam 43 is rotated by the horizontal adjustment bolt 44 of the support base 31 that covers the grounding base 27. The support base 31 is raised and lowered to horizontally adjust the grain dryer 1. A load cell 42 is placed on the upper surface of the support base 31 to receive the bottom plate 19.

FIG. 7 shows another embodiment of the weight measuring unit 23, in which the support base 31 is a box-shaped upper base 31A and a lower base A31B, a cam 43 supported by a support shaft 35 is provided in the lower base A31B, and the lateral adjustment bolt 44 is rotated. Moves up and down the upper platform 31A. A load cell 42 is placed on the upper surface of the upper table 31A and receives the bottom plate 19.

In the embodiment shown in FIGS. 8 and 9, an elevating base 37 that slides up and down with the slide guide 36 is provided inside the lower base A31B, and the elevating base 37 is slid up and down by the cam 43 that rotates with the lateral adjustment bolt 44. Moves up and down 31A.

In the case of the configuration of the weight measuring unit 23 of FIGS. 5 to 9, it is desirable to provide the weight measuring unit 23 on each of the bottom plates 19 at the four corners of the front, rear, left and right.

The weight balance of the grain dryer 1 can be measured by measuring the weight of each of the four load cells 42 that receive the bottom of the bottom plate 19, and the expected installation can be easily performed by displaying the position of the center of gravity of the machine on the operation panel 34. Become.

Note that FIG. 10 describes a case where the weight measuring unit 23 is inserted by forming a notch 20a in one of the vertical columns 20 of FIGS. 3 and 4, but for convenience, FIGS. 5 to 9 show. A case where the bottom plates at the four corners of the front, back, left and right are supported by the weight measuring unit 23 (attached in parentheses) as in the weight measuring unit 23 of the above is also described for convenience. Further, FIG. 11 shows a diagram in which the bottom plates at the four front, rear, left, and right corners of FIGS. 5 to 9 are supported by the weight measuring unit 23.

Further, the load cell 42 detects the weight fluctuation of the grains accumulated in the storage unit 2, but it is preferable to perform safety control so as to extinguish the burner 6a by determining that the sudden weight fluctuation is due to an earthquake.

1 Grain dryer 2 Storage part 3 Drying part 20 Vertical support 20a Notch part 23 Weight measurement unit

Claims (1)

A grain storage portion (2) and a drying portion (3) are provided in a housing formed by a side wall (21) supported by vertical columns (20) erected at the four corners, and the grains of the drying portion (3) are provided. The outlet is provided with a rotary valve (10) that allows a predetermined amount of grain to flow down while rotating, and receives the grain by the lower transfer device (9) of the grain collecting section (4) that sends the grain to the elevator section (5). By supplying the spread grain (14) of the storage section (2) with the upper transfer device (8) connected to the upper side of the storage section (5), the stake grain is deposited and stored on the entire surface of the storage section (2). The configuration is
The burner (6a) supplies hot air to the hot air chamber (11) of the drying section (3) to dry the grains.
The reservoir of the grain (2) and the notches on the longitudinal struts drying section (3) grain dryer incorporate a (1) supports (20) and (20a) is provided, the cutout portion ( A weight measuring unit (23) having a built-in weight detection sensor (42) for detecting the strain generated in the vertical column (20) due to the weight of grains in 20a) is integrally removed from the outer surface of the vertical column (20). Assembled as possible ,
The weight measuring unit (23) is formed in a triangular pyramid shape, and the shape of the notch (20a) is made into a non-penetrating shape that matches the shape of the weight measuring unit (23).
The weight detection sensor (42) detects the weight fluctuation of the grains accumulated in the storage portion (2), and if it is determined that the detected weight fluctuation is the weight fluctuation due to the earthquake, the burner (6a) is extinguished. A grain weight measuring device for a grain dryer, which is characterized by controlling .

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