JP2555867B2 - Grain moisture detector - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moisture detecting device for grains, which can be used for a single grain moisture meter mounted on a grain dryer or the like for drying grains.

[0002]

2. Description of the Related Art As disclosed in Japanese Unexamined Patent Publication No. 56-94251, there is a mode in which water content is measured while successively delivering specified particles toward a pair of left and right electrode rolls.

[0003]

By the way, in the feeding mechanism described in the above publication, after the grain from the grain flow passage such as a dryer is taken into the moisture detection case, the grain feeding device in the form of a vibration conveyor or Since it is fed out by a unit grain feeding mechanism including a rotating cylinder and a regulation plate, there is no limitation on the grain feeding from the dryer main body to the moisture detection case, and it tends to be excessive.

[0004]

The present invention has been proposed in order to solve the above-mentioned drawbacks, and has taken the following technical means. That is, the moisture intake case is attached by opening the grain intake port on the side wall of the grain flow passage of the dryer,
In the moisture detecting case, a pair of left and right electrode rolls 20 and 21 for detecting moisture while being crushed by being supplied with grains are provided.
A motor 24 for rotating and driving the electrode rolls 20 and 21.
And the rotational driving force of the motor 24 is applied to the electrode roll 2
In a moisture detecting device for a grain provided with a transmission gear for transmitting to the transmission gears 0, 21, the end portions of the shafts 15, 16 projecting inward from the transmission gear side are provided above the pair of electrode rolls 20, 21. A pair of supply rolls 17 and 17 provided in a cantilever shape on the outer peripheral surface of which a spiral groove for feeding the grain is formed are provided, and these supply rolls 17 and 17 are seen in the grain flow passage. A grain moisture detector is provided.

[0005]

The operation and effect of the present invention is such that the grain is fed out from the grain flow passage of the dryer by the pair of left and right supply rolls 17, 17, which are mounted from the outside. A shaft 15 that interlocks with the transmission gear of the moisture detection case,
Since the cantilevered end portion is supported by 16 and the cantilevered end side is looked into the grain flow-down passage, the power transmission structure can be simplified. 17, 1
Since No. 7 only repeats rotation, it is installed at a position that causes grain flow, but there are few troubles because an extreme load is not applied when starting and stopping it. Further, since the supply rolls 17, 17 for direct feeding out look into the grain flow path, the grains necessary for moisture detection can be fed out, and unnecessary samples are fed into the moisture detection case. Is less.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 is a machine frame of a grain dryer, and the inside is a well-known configuration including a grain tank 2, a drying chamber and the like. 3 is an elevator and 4 is a burner. In the front part of the grain tank 2, a box-shaped moisture detector 5 or an operation box 6 is arranged.

The moisture detecting device 5 includes front and rear side plates 7, 8,
Bearing members 13 and 14 are provided in a moisture detection case formed by the upper and lower side plates 9 and 10 and the left and right side plates 11 and 12 so as to be partitioned into three spaces in a side view. Then, a pair of grain supply roll shafts 15 and 16 are axially supported by penetrating these bearing members 13 and 14, and supply rolls 17 and 17 having a spiral groove formed on one end side thereof are provided on the upper part of the case.

The axes of the supply rolls 17, 17 are provided in a substantially horizontal shape, and the cantilevered leading end side (feeding start end side) of the rolls 17, 17 is the opening of the grain tank 2 and the front plate 7. A part of it can be seen into the grain tank 2 and the falling grain can be fed and transferred. Below the supply roll shafts 15 and 16, parallel to the electrode roll shafts 18 and 19,
Is supported by bearing members 13 and 14 like the roll shaft. On one end side of these electrode roll shafts 18 and 19, electrode rolls 20 and 21 having surface irregularities are provided.

Below the electrode roll shafts 18 and 19, a cleaning roll shaft 23 to which a brush-like cleaning roll 22 is fixed is supported by the bearing members 13 and 14. A space between the bearing member 14 and the rear plate 8 is provided with a group of interlocking gears. That is, the motor 24 is provided to project the main body toward the front side of the bearing member 14, and the drive shaft 25 of the motor 24 is projected toward the space portion side. Similarly, the gear 26 at the end of the shaft 25 disposed in the space is meshed with the two-stage gear 27 provided at the end of the electrode roll shaft 19. The small-diameter gear portion of the two-stage gear 27 is meshed with the gear 28 at the end of the electrode roll shaft 18 on the other side with which it meshes. The large-diameter portion of the two-stage gear 27 meshes with the gear 29 of the one supply roll shaft 15, and this gear 29 works in conjunction with the gear 30 of the other supply roll shaft 16.

Thus, the transmission gear groups 26 to 30 are centrally arranged in the space inside the rear plate 8 and the drive motor 2 is provided.
No. 4 can be arranged in a non-buffering position in the middle part of the shaft group, and there is an effect that the whole can be made compact and compact. Reference numeral 31 is a supply adjusting plate which forms the edges of the supply rolls 17 at the outer peripheral edges of the supply rolls 17, at an appropriate distance from each other. That is, the position is changeable along the axial direction of the supply roll shafts 15 and 16. 33 is a handle and 34 is a fixture.

Reference numeral 35 denotes an inclined reduction gutter provided below the cleaning roll 22, which is capable of reducing the grains through the reduction holes 36 formed by the front side plate 7 and the storage tank 2. The operation of the above example will be described. When the measurement signal from the control unit in the operation box 6 is received, the motor 24 is rotationally driven, and the supply rolls 17 and 17 are rotated by interlocking the rotation of the gear 26 at the motor shaft end with the two-stage gear 27 and the gears 29 and 30. Start.

When the feed adjusting plates 31, 31 ... Are set at arbitrary positions in advance, a part of the grain moving in the grain tank 2 is guided by the feed rolls 17, 17 ... The one grain is rolled in and supplied. The rotation of the two-stage gear 27 rotates the electrode rolls 20 and 21 together with the gear 28, so that one grain of the grains supplied from the ends of the supply rolls 17 and 17 is crushed between the electrode rolls 20 and 21. The electric resistance value is detected. In this way, the moisture value can be converted.

The grain that has passed through the electrode rolls 20 and 21 is returned to the storage tank 2 through the inclined guide gutter 34. still,
Grains in the grain tank 2 gradually flow down to the hot air chamber,
In the hot air chamber, hot air is blown and dried in the meantime. The grain is returned to the grain tank 2 again via the elevator 3 and the predetermined hot air drying is repeated.

During that time, the water content is measured at predetermined intervals, and hot air drying is repeated until the water content reaches a predetermined value. When the preset moisture value is reached, the drying operation is stopped by a signal from the control unit in the operation box 6.

[Brief description of drawings]

FIG. 1 is a sectional view showing a part of the development.

FIG. 2 is a rear view.

FIG. 3 is a transmission mechanism diagram.

FIG. 4 is a front view of a dryer.

[Explanation of Codes] 1 ... Machine frame, 2 ... Grain tank, 3 ... Elevator, 4 ... Burner,
5 ... Moisture detector, 6 ... Operation box, 7 ... Front plate, 8
... rear side plate, 9 ... upper side plate, 10 ... lower side plate, 11 ... left side plate,
12 ... Right side plate, 13, 14 ... Bearing member, 15, 16 ... Grain supply roll shaft, 17, 17 ... Supply roll, 18, 19
... Electrode roll shaft, 20, 21 ... Electrode roll, 22 ... Cleaning roll, 23 ... Cleaning roll shaft, 24 ... Motor, 25 ... Drive shaft, 26-30 ... Gear, 31 ... Supply adjusting plate

Claims (1)

(57) [Claims] 1. A moisture detecting case is installed by opening a grain intake port on a side wall of a grain flow-down passage of a dryer, and the moisture detecting case is supplied with grain and crushed. While the pair of left and right electrode rolls 20 and 21 for detecting moisture and the electrode rolls
And a motor 24 that drives the rollers 20 and 21 to rotate .
The rotational driving force of 24 is transmitted to the electrode rolls 20 and 21.
In the grain moisture detecting device provided with a transmission gear, the upper part of the pair of electrode rolls 20 and 21 is provided with an end portion of shafts 15 and 16 protruding inward from the transmission gear side. A pair of supply rolls 17, 17 provided in a cantilever shape and having a spiral groove for feeding grain on the outer peripheral surface are provided, and these supply rolls 17, 1 are provided.
7. A moisture detecting device for grains, characterized in that 7 is seen in the grain flow passage.