JPH012918A - Control device for grain conveying equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a paddy conveying device comprising a tank and a flexible screw conveyor etc. that can be freely attached to and detached from the tank.

(Prior art) Conventionally, the receiving part of a conveyor driven by a motor on the discharge side is attached to the discharge part of a grain tank having a discharge helix at the bottom so that the discharge helix can be driven, and the discharged grains are taken over and conveyed. In this type of grain transfer device, a sensor that detects the completion of grain discharge in the grain tank is sunk near the grain discharge part of the tank, and from the time of detection of the sensor, the conveyor ( The configuration was such that the non-exit end time was measured by a timer or the like and the drive was cut off.

(Problems to be Solved by the Invention) This invention attempts to transport grains in a tank by a flexible screw conveyor instead of the conventional conveyor as described above, and the flexible screw conveyor is It is composed of a flexible tube and a coiled transfer rod installed inside the tube, and has the feature of being able to freely change the conveying direction. Sometimes, when the amount of conveyance decreases, the conveyance efficiency decreases and is not constant.
When the drive of the flexible screw con-hair was cut off at 1 o'clock via a timer, grain remained inside the flexible screw con-hair. Also, when grains from stomach seeds are conveyed over a cliff, similar problems occur due to changes in conveyance efficiency.

Furthermore, with conventional equipment, when removing the grain tank from the grain tank, it is also necessary to disconnect the wire between the motor on the grain tank side and the sensor on the tank side, making the operation complicated. there were. This invention attempts to eliminate the drawbacks of the prior art as described above.

(Another means to solve the problem) A flexible structure capable of transporting the grains discharged for 11 cents to the discharge part 110 of the grain tank 1 having the discharge helix 109 at the lower part, and driving the discharge helix 109. The receiving part 6 of the screw conveyor 2 is removably provided, and a motor 21 for driving the conveyor 2 and a take-out tube for guiding the grains to be discharged are provided on the discharge part 7 side of the flexible screw conveyor 2. 56, a grain detection sensor 89 for detecting the presence or absence of grains discharged into the take-out tube 56, and a control circuit 25 for cutting off the drive of the motor 21 when the sensor 89 detects the grain conveyance device. The control device is configured as follows.

(Operation of the invention) The flexible screw conveyor 2 is driven by a motor 21 from its discharge section 7 side, and the discharge helix 109 of the grain tank 1 is further driven by the receiving section 6 of the flexible screw conveyor 2. Ru. The grains in the 11-grain tank 1 are transferred to the discharge section 110 by the discharge helix 109, flow into the receiving section 6 of the flexible screw-con hair 2, are transferred, and are taken out from the discharge section 7 of the flexible screw-con hair 2. Tube 5
6.

During this grain transportation, if the discharge of grains from the discharge section 7 is stopped due to a malfunction in the flexible screw conveyor 2 or the like, or if the discharge of grains from the grain tank 1 is completed and the flexible When the conveyance of the grains in the screw container 2 is completed, the sensor 89 in the grain removal cylinder 56 detects the absence of discharged grains, and the drive of the motor 21 is cut off via the control circuit 25. Stop working.

(Effect of foil light) Since the present invention is configured as described above, when the grains in the grain tank 1 are discharged by the flexible screw conveyor 2, there is no need to discard the grains provided in the take-out tube 56. The grain detection sensor 89 can detect the end of the general feeding of grains not only in the grain tank 1 but also in the flexible screw container 2, and no grains remain in the flexible screen container 72. .

In addition, in this grain Lk feeding device S, a motor 21, a sensor 89, a control circuit 25, etc. are provided on the grain removal tube 56 side of the flexible screw container 2, and the grain tank 1 and 2. When attaching and detaching the hair converter 2, there is no need to change the electrical wiring, and the attaching and detaching operation is easy.

Furthermore, when using this container transporter U for transporting grains harvested by a combine harvester and loading them into a dryer, first load only the grain tank 1 onto a light truck, go to the field, and transport the grains harvested by the combine harvester. The paddy harvested by the tank 1 is stored and taken home, and then the receiving part 6 of the flexible screw conveyor 2 is attached to the discharge part 110 of the tank 1, and the paddy is transferred to the hopper of a dryer installed in a narrow barn. The conveyor 2 is bent and the take-out cylinder 56 is positioned to perform the tensioning work. In such work, since all the drive parts and control parts are installed on the flexible screw conveyor 2 side, the flexible screw conveyor 2 is installed inside the barn, and
Paddy can be transported using a plurality of grain tanks 1, 1, and can be sequentially attached to and detached from a flexible screw conveyor 2 to perform efficient stakeout work.

(Example) In the rotation, 1 is a grain tank, 2 is a flexible screw conveyor, and 3 is a grain removal device, which together constitute a grain 1 general feeding device.

The flexible screw conveyor 2 includes a flexible tube 4, a coiled transfer rod 5 housed in the tube 4, a grain receiver 6 and a grain discharger 7 provided at both ends of the tube 4.
It consists of

The grain receiving section 6 and the discharging section 7 have substantially the same structure, but the receiving section 6 is slightly longer and is constructed as follows.

Reference numeral 8 denotes a mounting tube that expands on one side, and the end of the expanded portion is bent outward to form an abutment portion 9, and a connecting tube 10 is provided in the small diameter portion.
The other end of the connecting tube 10 is inserted into the tube 4, and the outer periphery of the tube end is tightened with a fastener 11 to connect the two.

The tip of the transfer tube 5 is connected to the connecting tube 12 by a stopper 13, and a shaft 14 is attached to the connecting tube 12, the tip of which is formed into a square shaft.
It is fixed. Reference numeral 15 denotes a bearing, which supports the protruding square shaft portion at the tip of the shaft 14 and is attached to the tips of three connecting rods 16° whose base ends are attached to the mounting tube 8. In addition,
The connecting rod 16° 16 has a large diameter mounting tube 8 and a small diameter bearing 15.
A tapered connection is made between the tank and the tank, making it easy to attach and detach the tank and the like.

Next, the grain removal device 3 to which the discharge section 7 of the flexible screw conveyor 2 can be attached will be explained. Reference numeral 20 denotes a base, and a motor 21 is mounted inside with its output shaft 22 facing upward. , a power supply box 23 is installed inside. The power supply box 23 includes a power switch 24 and a changeover switch 26 for automatic operation using a control circuit 25 (described later) and manual operation that does not use the circuit 25, and a changeover switch 26 for changing the connection when a reverse phase of the three-phase power supply is detected. 27 is provided.

28 is an opening/closing lid.

Reference numeral 29 denotes a fixed cylinder fixed and erected on the base 20, and 30 is a sliding cylinder whose upper end attaches and supports the gear box 31, and whose lower part is slidably inserted into the fixed cylinder 29.

Note that the fixed cylinder 29 and the sliding cylinder 30 constitute a support cylinder for a gear box 31 and the like.

Reference numeral 32 denotes a fixed shaft, which is formed into a hexagonal shaft, and whose lower end is connected to the output shaft 22 of the motor 21 via a loose-fit connecting portion 135. That is, the fixed shaft 32 is loosely fitted into the short hexagonal hole metal 34 fixed to the upper end of the connecting cylinder 33 which is keyed to the output shaft 22, thereby absorbing errors in the left and right direction during machining and installation. Furthermore, a pin 35 inserted into the connecting cylinder 33 is loosely inserted into the fixed shaft 32 to prevent the fixed shaft 32 from coming off and to absorb errors in the vertical direction during machining and assembly. It is structured as best as possible.

36 is a sliding shaft made of pipe material, a metal 37 forming a hexagonal hole is fixed to the lower end, the metal 37 is held by a bearing 136 attached to the lower end of the sliding tube 30, and the metal 37 is The fixed shaft 32 is slidably fitted. In addition, a metal 38 with a square hole is fixed to the upper end of the sliding shaft 36, and an input shaft 39 consisting of a square shaft of the gear box 31 above is fixed.
It is mated with. 40 is a spring and the base 20
It is interposed between the sliding tube 30 and the sliding tube 30, and urges the sliding tube 30 upward.

Reference numeral 41 denotes a fixing device, which includes a fixing ring 42 that is attached to the upper end of the fixing cylinder 29 and has a threaded groove 137 on the outer periphery and an inclined upper part of the inner circumferential surface; A rotating ring 44 provided with a handle 43, a tightening ring 45 formed in a trapezoidal shape in a side cross-sectional view and having a portion cut out in the circumferential direction, and located between the tightening ring 45 and a collar 46 at the upper end of the rotating ring 44. It is composed of a draft ring 47 and the like, and by tightening the rotary ring 44, the draft ring 47 is pushed down and the tightening ring 45 is pressed inward from the vertical direction by its inclined surface, so that the sliding tube 36 can be tightened and fixed. It is composed of:

A mounting ring 48 is fixed to the upper end of the sliding tube 36 forming the support tube, and a gap is inserted from the side of the mounting ring 48.

The base 31 and the lower cover 49 of the gear box 31 are fixed with bolts 50. A hevel gear 51 is attached to the upper part of the human power shaft 39 in the gear box 31, and The transmission shaft 5 extends at an angle to
It meshes with the hevel gear 53 at the two ends. 54 is an oil seal, and 55 is a bearing.

One side of the gear box 31 is inclined upward, and the rear side of the grain take-out cylinder 56 is attached along the slope, so that the upper part of the grain take-out cylinder 56 covers the gear box 311 part. The take-out tube 56 has a storage section 59 which also serves as a grain flow path between the parallel front and rear side plates 57 and 58, and a lower part thereof is formed into a funnel shape, and a discharge tube 60 is rotatably attached thereto. .

The transmission shaft 52 extends from the gear box 31 through the take-out tube 56, and has a space 62 in a large-diameter pipe case 61 that is held at one end by the gear box 31 and passes through the take-out tube 56. Interior and J tapipe case 61
The shaft is supported by a bearing 63 fitted into the other end. The other end of the pipe case 61 is attached to a transmission part holding plate 64 attached to the outside of the front plate 57, and the space 62 of the pipe case 61 has one end connected to the gear via a communication part 65. The space 6 of the pipe case 61 communicates with the box 31.
2 provides a breather function for the small-volume gearbox 31.

Reference numerals 66 and 66 are insertion holes for the two flexible screw cone hairs 2.2 formed in the rear side plate 58, and are open on both sides above the shaft mounting position of the transmission shaft 52. The insertion hole 66.
The front side plate 57 corresponding to 66 has a tapered fitting hole 67.67 for receiving the tapered part of the tip of the shaft "215.15" of the flexible screw conveyor discharge part 7, 7, and a tapered fitting hole 67.67 is provided at the position corresponding to the holding plate 64. The hair ring 68.6 connects the cylindrical shaft 138.138 that transmitably fits and supports the shaft 14.14 protruding from the bearing 15.15 of the flexible screw con hair 2,2.
It is mounted on a shaft via 8.

Reference numeral 85 denotes a stop that is rotatably supported at the center, and simultaneously fixes the contact portions 9.9 of the flexible screw conveyors 2, 2 with contact pressure from the outside.

Reference numeral 69 denotes a transmission device, which includes a pulley 70 attached to the end of the transmission shaft 52 and pulleys 71.7 attached to the ends of the cylindrical shafts 13B and 138.
1 and a heald 72 that is wound between these pulleys. Reference numeral 73 denotes a transmission case provided at the front of the take-out cylinder 56, and is provided with an opening/closing lid 74.

Also, the side plates 75 and 75 of the take-out tube 56 are the front and rear side plates 57.
58, and is provided with a side plate portion of the transmission case 73 and a portion that covers the sides of the gear box 31.

On the upper surface of the gear box 31, wide support plates 76 are provided on the left and right sides.
A pair of receiving members 77, 77 are attached to the left and right sides of the support plate 76, and the bases of the two flexible screw-con hairs 2, 2 attached to the take-out tube 56 are extended diagonally downward. It is fixed. The receiving member 77 is composed of two pieces of rod material, and there is a bar near the base of the receiving member 77. A relief portion 78 is provided between the lower surface of the l-type screw conveyor 2 and the lower surface of the screw conveyor 2. A receiving plate 7 that curves downward is provided in a portion other than the relief portion 78 between the two rod members of the receiving portion ten-off 7.
9 is provided, and an elastic plate 80 is further attached on the receiving plate 79.

Reference numeral 81 denotes a l main valve, which is provided on the upper surface of the gear box 31 and is attached to the support plate 7 attached to the gear box 31.
It is constructed so that it can be removed from a hole 82 provided at 6.

Additionally, a pair of support protrusions 83, 83 are provided at the front of the lower surface of the base 20.
A pair of idle wheels 84, 84 are mounted on a shaft at the rear of the lower surface.

Further, between the center of the upper surface of the take-out tube 56 and the upper part of the pipe case 61, a partition device 86 is hung down which divides the take-out tube 56 from approximately the center to the left and right. This prevents the grains from scattering from the insertion hole 66 into the take-out tube 56 of the other container hair 2 that is removed when the grains are fed once.

Reference numeral 87 denotes an operation box, which has a semicircular groove extending vertically along the outer periphery of the fixed cylinder 29 on the back side, and is fitted into the fixed cylinder 29 via an elastic plate 139 and is tightened. It is attached by a band 140 with a loose tightening force. Therefore, the operation box 87 is configured to be rotatable around the fixed cylinder 29.

Reference numeral 88 denotes a fullness sensor, which is attached to the front plate 57 of the grain take-out tube 56 and senses whether a certain amount of grain has accumulated in the take-out tube 56.

Numeral 89 is a grain sensing sensor for preventing idle rotation of the flexible screw conveyor 2, and is provided near the lower end of the take-out tube 56 and the side plate 75.

Next, to explain the control device, the power supply box 23 in the base 20 includes a power switch 24 that turns on and off the three-phase power supply, an anti-phase detection circuit 90 for the three-phase power supply, and a wire connection when detecting the anti-phase. A changeover switch 27 that changes the above, a manual automatic changeover switch 26 that changes between automatic operation and manual operation using the aforementioned sensors 80 and 89, a motor drive relay contact 93, and an excessive fL load current of the three-phase power supply. An overcurrent detection circuit 94 is provided.

Further, the operation panel 95 of the operation box 87 includes a start switch 9 that outputs a command signal to the motor control circuit 25.
6, a stop switch 97, a power lamp 98 that indicates that the power switch 24 in the power supply box 23 is turned on, an anti-phase detection lamp 99 that lights up when the anti-phase detection circuit 90 detects anti-phase, and an overcurrent An overload indicator lamp 100 that lights up when detected by the detection circuit 94 and a full indicator lamp 101 that lights up when the full sensor 88 detects the full capacity are provided.

The overcurrent detection circuit 94 is connected to the motor control circuit 25, and is configured to output an open signal for the motor drive relay contact 93 from the motor control circuit 25 in response to the detection output of the overcurrent detection circuit 94 to stop the motor 21. It is.

Further, the fullness detection sensor 881 is connected to the motor control circuit 25 and is linked to stop the motor 21 in the same manner as described above when this detection is detected, and the grains in the take-out tube 56 are ejected from the discharge tube 60 to detect the fullness. Sensor 88 is “off”
When this happens, the signal is input to the motor control circuit 25 via the timer 102 (approximately 9 seconds') to restart the motor 21. The set time of the timer 102 is the time during which the grains supplied from the cough removal pipe 56 and retained in a hopper of a huller or the like are taken in.

Further, the grain detection sensor 89 has a timer 103 (approximately 12
The motor 21 is connected to the motor control circuit 25 via a timer 103 to stop the motor 21 when the sensor 89 is detected. In addition, the setting time of this timer 103 is the time when the grain removal cylinder 56 is
It is set longer than the time it takes for grains to be conveyed to the grain sensor 89 and detected by the grain detection sensor 89, and longer than the time during which grains are absent in the grain removal cylinder 56 under the control of the fullness detection sensor 88 and the timer 102. . 104 is a DC power supply circuit, 105
is a current transformer.

The grain tank 1 includes front and rear side plates 1013 at the bottom of the storage section 107.
．． A discharge helix 109 is mounted between 10 and 11, and the grains inside can be transferred to a discharge section 110. Reference numeral 111 denotes a flow rate regulating plate, which is provided in a chevron shape on the discharge helix 109, and at its lower end is provided with an adjusting plate 113 for adjusting the gap between it and the flow grain plate 112.

A rotary shutter 114 is attached to a cylindrical shaft 116 that is rotatably supported in the metal 115 of the side plate 108 and rotates, so that the outlet 117 of the discharge section 110 can be opened and closed. Inside the cylindrical shaft 116, the shaft 106 of the discharge helix is mounted via a hair ring. In addition, the discharge helix 109 and the flow rate regulating plate 111 have their terminal ends located slightly before the starting end of the outlet 117, so that when the discharge section 110 becomes clogged, the low clearance shutter 114 and 2it! It is configured to allow grains to escape upward from the interval <p> with respect to the regulating plate 111. 1
18 is a rotary shutter operating lever.

Reference numeral 119 denotes a transmission shaft, which is mounted on the lower part of the grain tank l, and has one end protruding from the side plate to which a pulley 120 is attached, and a belt 122 is hung between it and the pulley 121 of the discharge helical shaft 106@. It is configured so that it can be stretched and transmitted. 123
is a tension pulley with a shaft 124 rotatably mounted on a lid made of metal 115.
It is actuated via a wire (not shown) by the operation of , and is configured to tension/relax the belt 122 to interrupt/disconnect the transmission between the pulleys 120 and 121, thereby discontinuing the drive of the discharge helix 109.

The other end of the transmission shaft 119 is located slightly in front of and below the outlet 117, and a joint member 126 is provided at the terminal end.

Reference numeral 127 denotes a transfer box, which is formed in a box shape with an open upper part, and has an opening 120. in the front through which the receiving portions 6.6 of the two flexible screw conveyors 2.2 can be inserted.
128, and the bearings 15.15 of the Conhair 2, 2 on the rear surface.
opening 129. for holding the shaft 14.14 and projecting the shaft 14.14 rearwardly.
129, the two flexible screw conveyors 2.
2 can be inserted and mounted.

At the bottom of the transfer box 127 is an idler wheel 130°130.
Rail 131.131 that is pivotally supported and provided on the grain tank 1 side
The shaft 14 on one side protruding from the transfer box 127 is inserted into the lower position of the take-out slot 117 along the top of the transmission shaft 116.
It is configured such that it can be fitted in a coupling member 126 in a transmission manner and can be fixed in this position.

When using the grain conveying device for transporting grains harvested by a combine harvester and loading them into a dryer, first, the flexible screw conhair 2.2 is The receiving section 6.6 is removed together with the transfer box 127, the flexible screw conveyor 2 and the grain removal device 3 are installed on the side of the dryer, and the grain tank 1 is mounted on a truck or the like to remove grain from the field. Carry out the transportation of grains and take over the flexible screw conveyor 2.2 again to the acid tank 1 box 1
27 to load grain into the dryer.For such work, the motor 2 is installed on the grain removal device 3 side.
1. All electrical components and control equipment such as a fullness detection sensor 88, a grain detection sensor 89, a power supply box 23, and an operation box 8F are installed, and the flexible screw conveyor 2, 2 and grain tank 1 are connected to each other. Simply attach and detach the transfer box 127
T and H can be easily performed by simply installing the tank below the tank discharge part 110.

When loading the dryer, it is necessary to move the grain removal device 3 and insert its discharge tube 60 into the dryer's loading hopper. A receiving member 77 firmly attached to 31
, and tilt the base 20 toward the front idler wheels 84.84 to lift the support protrusion 83°83 and move it by the idler wheels 84.84. Also, during this movement, by loosening the fixture 41 of the sliding tube 30, the ejecting tube 56 is rotated together with the sliding tube 30 relative to the base 20, and the elongated tube attached to the ejecting tube 56 is rotated with respect to the base 20. The longitudinal direction of the flexible screw-con hair 2 can be easily moved along the moving direction.

Next, when inserting the discharge tube 60 into the loading hopper of the dryer, loosen the fixture 41 of the sliding tube 30, and
Adjust the ejection cylinder 56 attached to the upper end of the cylinder 0 up and down and rotate it,
Furthermore, this is done by adjusting the rotation and extension* of the discharge tube 60.

In this state, when the power switch 24 is turned on and the start switch 96 is pressed, the motor 21 is driven, and the power is transmitted to the fixed shaft 32 via the output shaft 22 and the loose-fitting connection part 135, and then the metal 37, the sliding shaft 36, An input shaft 39 of the gear box 31 is driven through the metal 38. A bevel gear 53 meshed with a hevel gear 51 keyed to the input shaft 39
The power is transmitted to the transmission shaft 52 and drives the transmission device 69 at the other end of the transmission shaft 52. Pulleys 71.71 attached to the left and right cylinder shafts 138°138 are driven from the pulley 70 at the other end of the transmission shaft 52 via the belt 72, and the pulleys 71.71 attached to the left and right cylinder shafts 138.13B are driven.
A flexible screw-con hair 2 fitting into the shaft 1 of the discharge part 7
4.14 is driven, and the transfer rods 5, 5 are rotated.

Further, the power of the shaft 14 at the end of the receiving portion 6 of the one-way flexible screw conveyor 2 is transmitted to the transmission shaft 119 via the joint member 126.
Drives the pulley 120, belt 122, pulley 121
The ejection helix 109 is driven through.

The grains transferred by the discharge helix 109 are transferred to the exit port 117.
The grains are fed into the transfer box 127 from the outside, received in the receiving part 6.6 of the flexible screw conhair 2.2, transferred through the tube 4 by the rotation of the transfer rod 5, and from the discharge parts 7, 7. It is supplied into the take-out tube 56 and flows down, and is supplied from the discharge tube 60 to the loading hopper of the dryer.

During this grain transportation and loading process, when the loading hopper, which has a large conveying capacity, is filled with grains, the subsequent transported grains stay in the storage section 59 of the discharge tube 60 and the take-out tube 56, so that they become full. The sensor 88 detects this and stops the motor 21 to temporarily stop the grain conveyance.

When the grains are taken in by the dryer and the storage section 59 runs out of grains, the fullness sensor 88 detects this, and the timer 10 is activated.
After time measurement 2, the motor 21 is started again and the conveyance work is continued.

Furthermore, when the grains in the grain tank 1 have been transported and all the grains in the flexible screw conveyors 2 and 2 have been transported one shell, the grain detection sensor 89 at the lower part of the take-out cylinder 56 detects this. After the timer 103 has counted the time, the motor 21 is stopped and the work is completed.

If the capacity of the dryer/dryer is low and two flexible screw con-hairs 2.2 are used, if the full detection sensor 88 is activated, the transmission side screw con-hair to the grain tank 1 The work can be carried out by removing the other conveyor 2 leaving the hairs 2. Also, when performing conveyance work without using the grain tank 1, the receiving section for the flexible screw conveyor 2 can be removed from the transfer box 127. It is also possible to transport by removing the receiving portion 6.6 and directly inserting the receiving portion 6.6 into the grain.

Further, on the outer periphery of the insertion hole 66 of the extraction tube 56, there is a recess 140 for negative positioning of the connecting rod 16 of the ejection part 7 of the flexible screw-con hair 2.2. It can be installed in a specified position, and the tightening tool 1 of the tube 4
The tightening protrusion 141 of No. 1 can be always positioned downward, and the tightening protrusion 141 can be locked to the receiving plate 79 of the receiving member 77 when the ejecting section 7 is attached to the ejection tube 56. Once held, this installation work is easy.

Note that a special locking member may be provided on the tightening protrusion 141.

Moreover, the embodiment shown in FIGS. 11 and 12' is -
A flexible screw conveyor 2 for books and a conveyor 2 for books.
It is constructed in the same manner as in the previous embodiment to be able to transport grains supplied from a device input section 6 comprising a grain extraction device 3 to which a discharge section 7 can be attached.

[Brief explanation of drawings]

The figures show an embodiment of the present invention, in which Fig. 1 is an overall perspective view, Fig. 2 is a side view of the grain extraction device, Figs.
The figure is a side sectional view of the main part of Figure 2, and Figure 5 is arrow A in Figure 2.
Fig. 6 is a front sectional view of the take-out tube, Fig. 7 is a plan sectional view of the operation box attachment part, Fig. 8 is a control circuit diagram, and Fig. 9 is a grain tank. 10 is a front sectional view of the main part of the grain tank, FIG. 11 is a perspective view of another embodiment, and FIG. 12 is a front sectional view of the take-out tube of FIG. 11. In the figure, 1 is a grain tank, 2 is a flexible screw conveyor, 6 is a receiving part, 7 is a discharge part, 21 is a motor, 25
56 is a control circuit, 56 is a grain removal cylinder, 89 is a grain detection sensor, 109 is a discharge helix, and 110 is a discharge section.

Claims (1)

[Claims] The grains to be discharged are taken over and conveyed to the discharge part 110 of the grain tank 1 which has a discharge helix 109 at the bottom, and the discharge helix 1
Flexible screw conveyor 2 configured to be able to drive 09
A receiving part 6 is detachably provided, and on the discharge part 7 side of the flexible screw conveyor 2, a motor 21 for driving the conveyor 2, a take-out tube 56 for guiding the discharged grains downward, and a A control device for a grain conveying device, which is provided with a grain detection sensor 89 that detects the presence or absence of grains discharged into a take-out cylinder 56, and a control circuit 25 that cuts off the drive of a motor 21 when the sensor 89 detects the presence or absence of grains.