JPS623669Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention also serves as a mounting frame for an exhaust fan for exhausting drying air that is attached to the grain ventilation drying device, and the suction port of the exhaust fan is connected to the air exhaust path inside the machine. This invention relates to improvements to the exhaust duct installed on the outside of the aircraft to achieve this goal.

When installing an exhaust fan for exhausting drying air on the outside of the grain dryer's body, in order to make it easier to assemble it, there is an exhaust duct on the outside of the machine that communicates with the air exhaust path inside the machine. A conventional method is to install an exhaust duct, use the exhaust duct as a mounting frame, and attach an exhaust fan to it. However, this method prevents the straw and dust that is discharged from the inside of the machine along with the exhaust air. There is a problem that grains that have been blown away from grain conveying devices such as screw conveyors for transporting grains and carried by the exhaust air can accumulate in this ventilation duct, causing various inconveniences. come out.

In addition, in conventional grain ventilation drying equipment, this exhaust fan is installed in a fixed position on the machine body, as described in, for example, Japanese Utility Model Publication No. 58-9178. If the installation position of the fan is set low, when the grain ventilation drying device is installed inside a barn, the position of the exhaust outlet of the exhaust fan will be lower than the wainscoting of the barn, and it may be connected to the exhaust outlet of the exhaust fan. The air guide pipe that connects to the shed will interfere with the wainscoting of the barn, and if the height of the exhaust outlet of the exhaust fan is set to a height that exceeds the wainscoting, the air guide pipe connected to the exhaust outlet of the There is a problem in that it is inconvenient when the wind pipe is installed on the floor of a barn or on the ground so as to be guided to a desired location.

The present invention was developed to solve these problems, and uses an exhaust duct installed on the outside of the aircraft as a mounting frame for the exhaust fan to adjust the installation height of the exhaust fan. The purpose of this invention is to provide a new means for easily collecting and removing straw waste and scattered grains that accumulate in the exhaust duct.

In the present invention, as a means to achieve this objective, an air exhaust system is installed on the outside of the aircraft body that also serves as a mounting frame for the air exhaust fan and communicates the suction port of the air exhaust fan with the air exhaust passage in the interior of the aircraft body. The duct is removably assembled to the aircraft body so that it can be fitted into an upright position and an inverted position, and a mounting hole for the exhaust fan is installed in the exhaust duct at one of the upper and lower sides from the center of the exhaust duct. grain ventilation drying, characterized in that the ventilation duct has a cleaning opening closed by a cover that can be opened and closed, at the upper edge and the lower edge of the ventilation duct. It is intended to raise the exhaust duct in the equipment.

Next, an example of implementation will be specifically described with reference to the drawings.

1 and 2 show an outline of the appearance of grain ventilation drying apparatus A in which the present invention can be implemented. In the figure, reference numeral 1 denotes the body of the apparatus A, which is formed into a box shape surrounded by machine walls on all four sides. The body 1 has, in its inner cavity, a grain tank 2 in which left and right side walls 20 and a funnel-shaped floor plate 21 are formed of permeable members such as perforated plates (perforated plates) or mesh bodies. The front side machine wall 1a and the rear side machine wall 1b of the machine body 1 are installed in a common state, and the floor plate 2 of the grain tank 2
1, an outlet for grains is formed in the funnel-shaped bottom, and a drum shutter 22 for regulating the amount of outflow is installed at the outlet. At the bottom of the
A screw conveyor 3 for carrying out grains is installed, and a mesh body 40 is installed at the shaft center of the inner cavity of the grain tank 2.
Alternatively, the air guide path 4 made of a perforated plate is installed, which is the same as that of the conventionally known one. Reference numeral 5 denotes a known elevator (bucket elevator) that is installed adjacent to the machine body 1 to feed grains to be dried into the grain tank 2 installed in the machine body 1, and a projecting tube provided at the upper end. The starting end in the conveying direction of a stake conveyor 51 installed in the front-rear direction on the top of the machine body 1 is connected to the part 50, and the feeding of grains to the grain tank 2 is carried out by this stake conveyor. The discharge is performed from the discharge port 52 of 51. Furthermore, the lower end of the elevator 5 is communicated with the terminal end 30 in the discharge direction of the screw conveyor 3 for carrying out described above via a communication gutter 32, so that the grains carried out by the conveyor 3 are transferred to the elevator. 5, the grains are returned to the grain tank 2 and circulated.

Reference numeral 6 denotes a machine casing installed on the outer surface of the machine wall 1a on the front side of the aircraft body 1. An air intake port 60 with a mesh is formed on the front side, and an air intake port 60 on the rear side is installed on the machine wall 1a on the front side. Through the provided through-hole, it communicates with an air guide path 4 made of a mesh or perforated plate installed in the axial center of the inner cavity of the grain tank. A burner device that is a hot air generating device that generates hot air that is sent as drying air to the grains in the grain tank through the air guide path is installed in the machine casing 6.

7 induces and suctions the hot air generated by the burner device so that it passes through the grain layer spread in the grain tank, and also directs the drying air (exhaust air) that has passed through the grain layer to the outside of the machine. This exhaust fan is installed on the fuselage 1 to discharge air, and is supported by an exhaust duct 8 attached to the outer surface of the machine wall 1b on the rear side of the fuselage 1 as a mounting base.

As shown in FIG. 3, the exhaust duct 8 is connected to a transmission belt that drives the above-mentioned unloading screw conveyor 3 and tensioning conveyor 51 from a drive motor M installed at the bottom of the inner cavity of the machine body 1. As shown in FIGS. 3 and 4, the upper surface of the grain flow plate 31 that guides the grains to the screw conveyor 3 and the grain tank are formed on the machine body 1 side. It communicates with the air guide path formed between the lower surface of the floor plate 21 made of a perforated plate 2, and has a mounting hole 80 (communication hole) on the outer surface side for mounting the exhaust fan 7,
A fixing bolt 81 for fixing the casing of the exhaust fan 7 is installed, but the mounting hole 80
and a fixing bolt 81 provided around it...
As shown in FIG. 4, the exhaust duct 8 is installed at a position offset upward from the upper and lower center of the machine wall 8a on the outer surface side, and the exhaust duct 8 itself is It is removably attached to the fuselage 1 using the assembly bolts 82..., and after removing the assembly using the assembly bolts 82..., it is rotated 180 degrees to an inverted position, and then the assembly bolts are reattached in that position. 82...It is designed to be assembled by extraction.

In addition, to the exhaust duct 8, when the grain tank 2 is assembled to the fuselage 1 as shown in FIG. Straw waste, dust, and scattered grains among the grains flowing out from the drum shutter 22 will accumulate in the duct 8, so in order to remove them, there is a A cleaning opening 84 closed by a freely movable lid 83 is provided, and this cleaning opening 84 is also provided symmetrically to the upper edge, so that the exhaust duct 8 can be moved from an upright position to an inverted position. A cleaning port 84 is provided for removing dust that accumulates at the bottom of the exhaust duct 8 when the installation height of the exhaust fan 7 is shifted downward by fitting and assembling the exhaust duct 8 in the correct position.
is arranged at the lower end of the exhaust duct 8. Further, 85 is a stopper for the lid 83.

Note that the exhaust fan 7 is driven by a blade wheel 70 of the exhaust fan 7.
This is done by passing a transmission belt around the input pulley 71 provided on the rotating shaft of the drive motor M and the transmission pulley provided on the output shaft of the drive motor M, but if a drive motor is provided separately,
It may also be driven by this.

The embodiment device constructed as described above operates as follows.

When assembling the exhaust duct 8 to the fuselage 1, it is assumed that the position of the mounting hole 80 is deviated upward.
If you install the exhaust fan 7 into the exhaust duct 8,
By assembling, the exhaust fan 7 can be installed in a high position as shown in FIG. If you attach it, the ventilation duct 8
By assembling the exhaust fan 7 to the exhaust fan 7, the exhaust fan 7 can be installed in a low position as shown in FIG.
By alternately fitting the exhaust fan 7 into the upright position and the inverted position and setting it on the fuselage 1, the mounting height position of the exhaust fan 7 can be adjusted up and down.

The exhaust duct 8 is provided with a cleaning opening 84 on both its upper edge and lower edge, which is closed by a lid 83 that can be opened and closed. In either case, the cleaning port 84, which can be opened and closed, is located at the lower edge of the assembled air exhaust duct 8. By opening the air exhaust duct 8, straw waste, scattered grains, etc. that accumulate in the exhaust duct 8 can be easily removed and collected.

As explained above, the ventilation duct in the grain ventilation drying device according to the present invention also serves as the mounting frame for the ventilation fan, and is mounted on the exterior surface of the machine so that the suction port of the ventilation fan communicates with the air exhaust passage in the interior of the machine. An air exhaust duct to be installed is removably assembled to the aircraft body so that it can be installed in an upright position and an inverted position, and the installation hole of the air exhaust fan is inserted into the air exhaust duct in the center of the air exhaust duct. The ventilation duct is formed so as to be offset upwardly or downwardly from the exhaust duct, and cleaning openings closed by lids that can be opened and closed are formed at the upper and lower edges of the exhaust duct, respectively. Therefore, the installation height of the exhaust fan relative to the fuselage can be adjusted vertically by switching the exhaust duct, which is the mounting base of the exhaust fan, between an upright position and an inverted position, and then assembling the exhaust fan into the aircraft body. The exhaust duct that allows the installation height of the exhaust fan to be adjusted vertically is designed so that the cleaning opening, which can be opened and closed, is located at the lower edge of the exhaust duct in both the upright and inverted positions. This makes it easier to collect and remove straw waste and scattered grains that accumulate in this exhaust duct.

[Brief explanation of the drawing]

Fig. 1 is a perspective view from the front side of a grain ventilation drying device in which the present invention can be implemented, Fig. 2 is a perspective view from the rear side of the same, Fig. 3 is a vertical sectional view of the main parts of the same,
FIG. 4 is a perspective view of the essential parts of the same, and FIGS. 5 and 6 are explanatory diagrams of the operation. Explanation of drawing symbols, A... Grain ventilation drying device, 1
... Airframe, 1a, 1b ... Machine wall, 2 ... Grain tank, 2
0...Side wall, 21...Floor plate, 22...Drum shutter, 3...Screw conveyor, 30...Terminal part, 31... Grain board, 32...Communication gutter, 4...Air guiding path, 40 ...Mesh body, 5...Elevator, 50...Protruding cylinder part, 51...Pitching conveyor, 52...Discharge port, 6...Machine casing, 60...Air intake port, 7...Exhaust fan, 70 ...Wing wheel, 71 ...Input pulley, 8
...Exhaust duct, 8a...Machine wall, 80...Mounting hole, 81...Fixing bolt, 82...Assembling bolt,
83... Lid, 84... Cleaning port, 85... Stopper, M... Drive motor.

Claims (1)

[Scope of utility model registration request] The exhaust duct, which also serves as the mounting frame for the exhaust fan and is installed on the exterior of the aircraft so that the suction port of the exhaust fan communicates with the air exhaust passage in the interior of the aircraft, can be placed in an upright position or an inverted position with respect to the aircraft. It is removably assembled so that it can be replaced, and a mounting hole for the exhaust fan is provided in the exhaust duct.
The ventilation duct is formed so as to be offset upwardly or downwardly from the center of the ventilation duct, and cleaning openings closed by lids that can be opened and closed are formed at the upper and lower edges of the ventilation duct, respectively. An exhaust duct in a grain ventilation drying device characterized by: