JPH0451755B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is an improvement in an upper conveyor installed on the upper part of the body of a grain dryer so as to carry grains fried by an elevator into a grain tank. Regarding.

[Prior Art] In the conventional type, the upper conveyor a mounted on the upper part of the machine body 1 of the grain dryer A is usually arranged around a rotating shaft 20 as shown in FIG. A screw 2 formed by winding a spiral grain feeding blade 21 is configured by being housed on a shaft inside a cylindrical conveying gutter 3,
The starting end side of the conveying gutter 3 in the conveying direction is inserted into the discharge tube part 41 installed at the upper end of the grain lifting tower 40 of the elevator 4 installed upright on the outer surface of the machine body 1, and the inside of the grain lifting tower 40 is Bucket conveyor 42 Bucket 42
a transfers the grains released into the discharge cylinder part 41 to the conveyance gutter 3.
The discharge port 30 is connected to the discharge cylinder part 41 so as to be inherited into the starting end of the grain tank 10, and the terminal end side in the conveying direction is inserted into the upper part of the inner cavity of the grain tank 10 installed in the machine body 1, and the discharge port 30 is inserted into the grain tank 10. This allows the grains lifted by the elevator 4 to be taken over and fed into the grain tank 10.

Further, in order to allow the grains lifted by the elevator 4 and released from the bucket 42a into the discharge cylinder part 41 to be taken out from the take-out gutter 43 provided at the bottom of the discharge cylinder part 41, An opening 50 is provided at the bottom of the starting end of the conveying gutter 3, and the opening and closing of the opening 50 is controlled by the shutter 5, which opens and closes the bucket 42a.
The state is changed so that the grains discharged from the opening 50 flow into a take-out gutter 43 formed at the bottom of the discharge tube 41.

Further, the upper conveyor a transports the grains loaded in the grain tank 10 after the grain drying operation by the grain dryer A to the lower conveyor (in the drawing) installed horizontally at the bottom of the machine body 1. (omitted in this section), the grain is carried out of the machine and sent to the lower part of the grain lifting tower 40 of the elevator 4, and then transferred to the bucket conveyor 42 in the grain lifting tower 40.
The opening port 5 is opened by operating the shutter 5 to open the grain in advance.
When carrying out the work of leading grains from 0 to the take-out gutter 43 and taking them out of the machine, a small amount of grain inevitably remains in the conveying gutter 3 of the upper conveyor a when the work is finished. Since leaving the remaining grains unattended may cause inconveniences such as being harmed by mice, a means is provided to remove the remaining grains from the machine. The means for doing so is to provide an open opening at the bottom of the conveying gutter 3 exposed inside the grain tank 10 and provide there with a shutter that slides in the longitudinal direction of the conveying gutter 3, or to close the open opening. The bottom plate of the bottom plate is made to rotate downward with one end of the bottom plate in the longitudinal direction as a rotation fulcrum, or the other side edge is rotated downward with one of the longitudinal edges as a fulcrum. For example,

[Problem to be solved by the invention] For this reason, the upper conveyor a of the grain dryer A is
The ejection cylinder part 41 of the elevator 4 must be equipped with both a means for switchably communicating with the extraction gutter 43 provided at the bottom of the ejection cylinder part 41 and a means for removing residual grains. Not only is the mechanism cumbersome, but the means for removing residual grains is
There is a problem in that the sliding shutter provided at the bottom of the conveying gutter 3 or the rotatable bottom plate of the conveying gutter 3 must be opened and closed several times in order to completely remove the remaining grains.

The present invention has been made in order to solve these problems occurring in the conventional means, and the means for removing residual grains in the conveying gutter is alternately switched with the ejection gutter and the discharge cylinder part. It is an object of the present invention to provide a new means that doubles as a switching means for communication, so that this switching means can be substantially omitted, and that the remaining grains can be completely removed with a single opening operation. purpose.

[Means for Solving the Problems] In the present invention, as a means for achieving this object, there is provided an upper part in which a screw is housed in a conveying gutter at the upper part of a grain tank provided in the aircraft body. A conveyor is mounted, and the starting end side of the upper conveyor in the conveying direction is inserted into a discharge cylinder part installed on the upper part of an elevator installed on the outer surface of the machine body,
At the bottom of the conveyance gutter of the upper conveyor, openings are provided in the portion located inside the discharge tube and the portion exposed in the grain tank to open those portions downward. The grain is characterized in that the conveying gutter is closed in an openable and closable manner by a bottom plate that rotates integrally and continuously along the peripheral wall of the conveying gutter about the axial center line of the gutter as a center of rotation, and a drive mechanism for rotating the gutter is connected to the bottom plate. The upper conveyor in the grain dryer is proposed.

[Example] Next, an example of implementation will be described in detail with reference to the drawings. Note that the same reference numerals in the drawings as in the previous means are used for components having the same effect.

FIG. 3 is a partially cutaway side view of the main parts of a grain dryer A in which the present invention can be carried out, in which 1 is a machine body, 10 is a grain tank installed in the machine body 1, and 4 is a machine body 1. The elevator is installed upright on the outer surface side of the conveyor, 6 is the rotatable bottom plate of the conveying gutter 3 of the upper conveyor a, and 7 is the drive mechanism that rotates the bottom plate 6.

The body 1 is similar to the body of a conventionally known grain dryer, and is formed into a substantially square box shape with four circumferential walls, a top plate, a bottom plate (not shown), and the like.

The grain tank 10 is installed in the upper half of the inner cavity of the fuselage 1 by sharing the upper half of the four circumferential walls of the fuselage 1, and is equipped with an inclined floor plate (not shown) made of an air-permeable bulkhead. The grain tank 10 is formed by shelving the grain tank 10 in the fuselage 1.
An outflow port is provided at the bottom of the tank, and a rotary shutter is provided at the outflow port to regulate the amount of outflow. Further, a lower conveyor (not shown) is provided at the bottom of the inner cavity of the machine body 1 to transport the grains that have flowed out from the outlet to the outside of the machine. It is connected to.

The elevator 4 is a conventionally known type having a bucket conveyor 42 suspended inside a grain lifting tower 40, and a discharge tube part 41 is provided at the upper part of the grain lifting tower 40 as shown in FIG. It is equipped with a discharge cylinder part 41.
A take-out gutter 43 is installed at the bottom.

The upper conveyor a is a normal type in which a screw 2, which is made up of a spiral grain feeding blade 21 wound around the circumferential surface of a rotary shaft 20, is mounted on a storage shaft inside a cylindrical conveying gutter 3. The starting ends of the conveying gutter 3 and grain feeding blades 21 in the conveying direction are located within the discharge cylinder section 41 of the elevator 4, and the terminal ends of the conveying gutter 3 and grain feeding blades 21 in the conveying direction are located in the grain tank 10 as shown in FIG. It is horizontally mounted on the upper part of the fuselage 1 so that it occupies a position along the ceiling. The conveying gutter 3 of the upper conveyor a is open at the upper surface side of the portion that protrudes into the discharge tube portion 41 of the elevator 4 (FIG. 4), and thereby the bucket conveyor 42 of the elevator 4 is opened. The grains discharged from 42a are received into the inner cavity at the starting end of the conveying trough 3. Further, the conveying gutter 3 has openings 8, 8 which open downward at the bottom of the conveying gutter 3, at a portion located within the discharge tube portion 41 and a portion exposed within the grain tank 10. Each has been established. These openings 8, 8 are provided in the case where a separate blocking member is provided at a portion of the conveying gutter 3 that straddles between the body 1 and the discharge cylinder portion 41.
It may be formed in a continuous long groove shape.

As shown in FIGS. 5 to 7, the bottom plate 6 of the conveying gutter 3, which is provided to open and close the openings 8, 8, has an arcuate cross-sectional shape.
The stays 60 and 6 are formed at both ends of the longitudinal direction.
0, and the stays 60, 60 are integrally connected to shaft cylinder parts 61, 61 which are rotatably fitted to both shaft ends of the rotating shaft 20 of the screw 2, and the center of the rotating shaft 20 of the screw 2 is fixed. The openings 8, 8 are respectively closed as shown in FIG. 5, and the openings 8, 8 are closed as shown in FIG. 8 are respectively opened.

The drive mechanism 7 that rotates the bottom plate 6 of the conveying gutter 3 rotates one of the stays 60, 60 into a ring shape centered around the shaft cylinder portion 61 as shown in FIGS. 8 and 9. A gear part 70 is provided in the shape of a tooth ring on the outer peripheral surface of the gear part, and a conveying gutter 3 is separately provided.
Motor M that rotates by switching between forward and reverse directions on the top side of
is installed on the output shaft 71 of the gear section 70.
The gear part 70 is configured by providing a gear 72 that meshes with the motor M, and operates the motor M by operating a switch installed in the circuit of the motor M and installed at a desired location. By rotating the stay 60, the bottom plate 6 is rotated.

In the illustrated embodiment, 22 is a bearing support member that pivotally supports the end of the rotating shaft 20 of the screw 2 in the transport direction, 9 is an equalizer, 90 is the rotating shaft of the equalizer 9, and 91 , 92 is its rotation axis 9
0 and the rotating shaft 20 of the screw 2, and 23 is a drive pulley that drives the rotating shaft 20 of the screw 2.

[Function] The embodiment device configured as described above functions as follows.

When the elevator 4 and the upper conveyor a are operated to feed grain into the grain tank 10, the motor M is rotated in the forward direction so that the bottom plate 6 moves into the conveying gutter 3 as shown in FIGS. 3 and 5. The openings 8, 8 provided on the bottom are kept closed. As a result, the discharge cylinder part 41 is lifted up by the elevator 4 and discharged by blocking the opening 8 with the part located inside the discharge cylinder part 41 of the bottom plate 6 and cutting off the communication with the extraction gutter 43. All of the grains released into the cylindrical portion 41 are transported by the screw 2 through the conveying gutter 3 toward the discharge port 30 on the terminal side, and are thrown into the grain tank 10 from the discharge port 30. become.

Next, when taking out the grains outside the machine, motor M
is rotated in the opposite direction to move the bottom plate 6 to a position where it is wrapped with the side surface of the peripheral wall of the conveying gutter 3, as shown in FIG. As a result, on the bottom surface of the conveyance gutter 3, both the opening 8 provided at the portion located within the discharge cylinder portion 41 and the opening 8 provided at the portion exposed within the grain tank 10 are opened together. By opening these openings 8, 8, the discharge tube portion 41 is brought into communication with the take-out gutter 43, and the portion of the bottom of the conveying gutter 3 exposed inside the grain tank 10 is in a state where the bottom is warped and passed through. becomes. For this reason, all of the grains released into the discharge cylinder section 41 are made to flow into the take-out gutter 43, and all of the grains remaining in the conveying gutter 3 are transferred into the grain tank. They will be forced to exclude them.

[Effects of the Invention] As explained above, the upper conveyor in the grain dryer according to the present invention has a grain tank 10 provided in the machine body 1.
An upper conveyor a in which the screw 2 is accommodated in the conveyor gutter 3 is mounted on the upper part of the inner body, and the starting end side of the upper conveyor a in the conveyance direction is connected to the machine body 1.
The part located inside the discharge cylinder part 41 and the grains are inserted into the bottom surface of the conveying gutter 3 of the upper conveyor a. In the part exposed in the tank 10,
Openings 8, 8 are opened to open these parts downward, and these openings 8, 8 are rotated integrally and continuously along the circumferential wall of the conveying gutter 3 approximately around the axis of the conveying gutter 3. It is closed with a bottom plate 6 that can be opened and closed freely.
Since the bottom plate 6 is connected to a drive mechanism 7 that rotates, the grains placed in the grain tank 10 of the fuselage 1 are dried and then removed from the fuselage 1. A means for removing residual grains in the conveying gutter 3 of the upper conveyor a and remaining inside the machine body 1 when taken out is a means for removing the residual grains in the conveying gutter 3 of the upper conveyor a. Since it also serves as a switching means for switching between the state in which it communicates with the conveying gutter 3 and the state in which it communicates with the take-out gutter 43, the mechanism can be simplified, and it can also be used in cases where residual grains that should be removed are generated in the conveying gutter 3. When you finish drying a grain and take it out of the machine 1,
This means that both the portion of the bottom surface of the conveying gutter 3 located within the discharge tube portion 41 of the elevator 4 and the portion exposed within the grain tank 10 have been switched to a state in which residual grains are removed. The grains can be taken out of the machine without remaining grains, and the work of removing the grains left inside the machine body 1 after the drying work is completed is facilitated. The bottom plate 6, which opens and closes the respective openings 8, 8 provided on the bottom surface of the conveying gutter 3 in order to remove residual grains, rotates approximately around the axis of the conveying gutter 3, so that the respective openings 8,8
The grains in the conveying gutter 3 can be removed without repeating the opening operation.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional side view of the main part of the conventional means, Fig. 2 is a longitudinal sectional front view of the same as above, Fig. 3 is a longitudinal sectional side view of the main part of the embodiment device of the present invention, and Fig. 4 is a longitudinal sectional front view of the same as above. Figure 5 shows v-v in Figure 3 of the same part as above.
6 is a longitudinal sectional rear view taken along the line - in FIG. 3 of the same section, FIG. 7 is a side view of the same section, and FIG. 8 is an enlarged vertical sectional side view of the same section; The figure is an enlarged vertical cross-sectional rear view of the same part. Explanation of drawing symbols: A... Grain dryer, a... Upper conveyor, 1... Airframe, 10... Grain tank, 2...
Screw, 20...rotating shaft, 21...grain feeding blade,
22... Bearing support member, 23... Drive pulley,
3...Transport gutter, 30...Discharge port, 4...Elevator,
40...Grain lifting tower, 41...Discharging cylinder section, 42...Bucket conveyor, 42a...Bucket conveyor, 43...
Takeout gutter, 5... Shutter, 50... Opening port, 6
... Bottom plate, 60 ... Stay, 61 ... Shaft cylinder part, 7
... Drive mechanism, 70 ... Gear part, 71 ... Output shaft, 72 ... Gear, 8 ... Opening, 9 ... Equalizer,
90... Rotating shaft, 91, 92... Transmission gear, M...
…motor.

Claims (1)

[Claims] 1. At the upper part of the grain tank 10 provided in the machine body 1, an upper conveyor a in which the screw 2 is accommodated in the conveying gutter 3 is mounted, and the starting end side of the upper conveyor a in the conveying direction is connected to the machine body 1. The part located inside the discharge cylinder part 41 and the grains are inserted into the bottom surface of the conveying gutter 3 of the upper conveyor a. Openings 8, 8 are provided in the portions exposed in the tank 10 to open those portions downward, and the openings 8, 8 are connected to the conveying gutter 3 with the axis of the conveying gutter 3 as the center of rotation. This upper conveyor in a grain dryer is characterized in that it is closed so as to be openable and closable by a bottom plate 6 that rotates integrally and continuously along the peripheral wall of the grain dryer, and a drive mechanism 7 that rotates is connected to the bottom plate 6.