JPH0953884A - Grain dryer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make compact the whole device of a grain dryer and constitute the grain dryer at low cost by driving a lift on one side in front of and behind the dryer and a lower part spiral in a grain collecting chamber with a single motor and interposing a power switch for turning an and off clutch mechanism to a transmission system which drives the lower part spiral. SOLUTION: An exhaust compartment is provided on both sides of a hot air compartment 6, thereby forming a drying compartment 4 between the hot air compartment 6 and the exhaust compartment 7 where the grains which flow down in the drying compartment 4 are exposed to hot air, thereby drying up the grains. A lift 15 laid out on one side in front of and behind a dryer and a lower spiral 14 set up in a grain collection chamber 13 are driven with a single motor 26 while a power switch on and out clutch mechanism 32 is interposed to a transmission system which drives the lower part spiral 14. This construction makes it possible to pour and circulate grains with a minimum number of motors without any troubles and eliminate the need for a feed valve and cut down the number of components and constitute a drying device at low cost.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain dryer.

[0002]

2. Description of the Related Art Conventionally, a dryer of this type is provided with a hot air chamber and an exhaust air chamber, and a burner is provided on the front surface of the hot air chamber so as to project from the dryer body, and is generated by the burner. The hot air is sent to the hot air chamber, and the grains are dried while the hot air flows from the hot air chamber to the exhaust chamber. A rotary feeding valve is provided in the lower part of the drying chamber, and the grain is circulated in the dryer by rotationally driving the feeding valve.

[0003]

In such a conventional device, a feeding valve is required in addition to the lower spiral of the grain collecting chamber, and in addition to the elevator driving, the feeding valve driving, and the lower spiral driving. It required an electric motor and had a problem that the cost increased as the number of parts increased.

[0004]

SUMMARY OF THE INVENTION The present invention is proposed in view of the above-mentioned problems, and it is an object of the present invention to provide a device which is compact in structure and inexpensive in structure. Therefore, the following technical measures were taken. That is, exhaust air chambers 7 and 7 are provided on both sides of the hot air chamber 6, and drying chambers 4 and 4 are formed between the hot air chamber 6 and the exhaust air chambers 7 and 7, respectively. In a drying device for exposing hot grains to flowing hot air to dry the grains, an elevator 15 disposed on one side of the dryer in the front-rear direction and a grain collecting chamber 13
The lower spiral 14 installed in the lower spiral 14 can be driven by a single electric motor 26, and a transmission mechanism for driving the lower spiral 14 is provided with a clutch mechanism 32 for power on / off. The feature of the grain drying device is the configuration.

[0005]

Embodiments of the present invention will be described below based on the embodiments shown in the drawings. First, the structure will be described.
Is a machine frame of a grain dryer, in which a storage tank section 2 is provided in an upper part of the machine frame 1, and a downwardly-flowing shelf 3 and a grain flow passage 4 formed by these shelf 3 are provided. Four
And the grain flow paths 4 and 4 are connected to the drying chamber 5. Exhaust air chambers 7, 7 are provided on the left and right sides of the central hot air chamber 6, and when the hot air of the burner 9 is guided to the hot air chamber 6, the hot air passes through the drying chamber 5 and escapes to the exhaust air chambers 7, 7. It is configured to be discharged from the air exhaust chambers 7, 7 to the outside of the machine by an exhaust fan 10.

A grain collecting chamber 13 is provided below the drying chamber 5,
A lower spiral 14 is provided along the front-rear direction, and the lower spiral 14 collects the grains on one side in the front-rear direction and transfers them to the storage tank 2 again by the elevator 15. A pair of upper and lower drive pulleys 16 and driven pulleys 17a are provided in the elevator 15, and a bucket belt 18 wound between the pulleys 16 and 17a is used to scoop up dried grains to the upper part for scooping. There is.

Grains scooped by the grain raising machine 15 and thrown at the upper part are guided to the starting end side of a transfer gutter 20 provided with an upper transfer spiral 19 through an opening of the throwing port. Then, the grain horizontally transferred by the upper transfer spiral 19 is guided by the rotary diffusion plate 22 arranged in the upper center of the storage tank 2 and diffused and dropped into the storage tank 2. Reference numeral 23 is a pulley attached to the end of the upper transfer spiral 19, and 24 is a belt interposed between the pulley 23 and the driven pulley 17b.

The drive pulley 16 of the elevator 15 is driven by the electric motor 26. Specifically, the drive pulley 16 is located between the pulley 27a on the electric motor 26 side and the drive pulley 16. The belt 28 is wound around. The electric motor 26 can also drive the lower spiral 14 at the same time, and the belt 30 is wound between the pulley 27b and the pulley 29 on the lower spiral 14 side.
A tension clutch 32 for turning the power on and off is provided in the middle portion. The belt 3 is also provided between the pulley 33 attached to the terminal end side of the lower spiral 14 and the pulley 35 integrated with the exhaust fan 10.
6 is wound and the exhaust fan 10 is rotationally driven.

When the tension clutch 32 is turned on, all the transmission systems such as the elevator 15, the upper transfer spiral 19, the lower spiral 14, the exhaust fan 10 are driven, and when the tension clutch 32 is disengaged, the elevator 15 and the upper part. Only the transfer spiral 19 is configured to be driven. Therefore,
When the grain is stuck, the tension clutch 32 is kept in the disengaged state and only the elevator system is driven, and the grain is loaded from the loading port 12 beside the elevator 15 so that the dried grain is stuck in the dryer.

Reference numeral 38 in the drawing denotes a dust collector, which is driven by a dust motor 39. In the above example, when the rotating parts are driven to start the drying of the grain, the hot air from the burner is introduced into the hot air chamber 6, and the hot air is blown onto the grain flowing from the grain flow passage 4 into the drying chamber 5. The hot air that has passed through the drying chamber 5 is discharged to the outside of the machine by the exhaust fan 10 through the pair of left and right exhaust chambers 7, 7 on both sides thereof.

Particularly, in the dryer of this embodiment, there is no feeding valve, and when the grain is put in, the drive system such as the lower spiral 14 is shut off and the elevator system is driven by the single electric motor 26. Therefore, the number of parts is smaller than that of the conventional one, which can greatly contribute to the cost reduction, and the sticking-in can be sufficiently performed even in the low voltage area. Next, an improved invention relating to the above small dryer will be described. 4 to 6 show a case where the thrower 40 is attached to the side wall of the elevator 15.
If the thrower 40 is placed on the floor, extra power will be taken when the grain is flipped up and transported, and loss will occur in the lifting height, so it is better to place the thrower 40 as high as possible.

Therefore, the thrower 40 shown in FIGS.
Is designed to be directly attached to the main body of a small dryer, and in which the thrower 40 does not interfere with the controller portion 42 operated from the outside. For this reason, the thrower 40 is attached to the front wall of the upper and lower intermediate portions of the elevator 15, and the pulley 43 and the mower on the front surface of the thrower 40 are attached.
The belt 46 is wound around the pulley 45 fixed to the tape 44.

The motor 44 is supported in the case of the elevator 15 so as to be inserted between the bucket belts 18, and a spiral 47 for feeding dry grains to the thrower 40 is provided above the case. A discharge pipe 48 is connected between the spiral 47 and the starting end of the transfer gutter 20. Thus, the thrower 40 is installed in the upper and lower intermediate portions of the elevator 15, and the spiral 47 and the motor 44 are housed in the elevator 15, so that the case of the thrower 40 is not necessary and the lift can be high. The device can be made compact.

Next, the structure of the monitor display of FIGS. 7 to 9 will be described. A moisture meter is usually attached to the front surface of the elevator 15, and when it is detected that the moisture value of the grain being dried reaches the target moisture value, the drying operation is stopped. Prior to the start of the drying operation, the operator sets the finished moisture value. At this time, the push button switch 50 of the operation unit 49 as shown in FIG. 7 is operated to determine the set moisture value.

In the figure, reference numeral 51 denotes an LED indicating the amount of swelling.
A lamp and 52 are LED lamps indicating the set water content. 5
Reference numeral 3 is a tension switch, 54 is a drying switch, 55 is a discharge switch, 56 is a stop switch, and 57 is an OK monitor. The OK monitor 57 is for displaying the presence / absence of an abnormality in the machine. When a burner abnormality, a paddy flow abnormality, a motor abnormality or the like occurs, the OK monitor-57 is set up to display the abnormality location. The LED lamp that was displaying the water content flashes. For example, in FIG. 8, the set water content value is displayed at 15% during normal operation, but if an abnormality occurs in the paddy flow,
An LED lamp (in this embodiment, a lamp having a set moisture value of 12.5%) that displays the location of the paddy flow sensor blinks.
With such a configuration, the graphic display of the OK monitor, which has been specially provided in the past, can be omitted, and the device can be constructed at low cost.

Next, the structure of the ladder of the dryer shown in FIGS. 9 and 10 will be described. When using a ladder to inspect the upper part of the dryer, if you try to hang it on the dryer body using a long ladder, you may lose balance and fall, which is extremely dangerous. In some conventional devices, a long ladder is divided into two, and the lower ladder is first hung, and then the upper ladder is hung. However, when the upper ladder is hung, this is used to climb to the lower ladder. It has to be done, which is a dangerous task.

Therefore, the ladder 60 in FIG. 10 is divided into upper and lower halves, the upper ladder 60a is fixed to the dryer, and the lower ladder 6 is used.
0b is a switching method. The upper ladder 60a is fixed to the step 62 integrated with the dryer, and the lower ladder 60b is detachable from the step 62. FIG. 10 also has a similar structure, and the lower ladder 60b is installed with its direction turned. Since the lower ladder 60b is hung along the dryer body, the space for hanging the ladder
The space can be reduced.

[0018]

Since the present invention is constructed as described above, it has the following technical effects. That is, the exhaust air chambers 7, 7 are provided on both sides of the hot air chamber 6, and the hot air chamber 6 and the exhaust air chamber 7,
In the drying device for forming drying chambers 4 and 4 between the drying chambers 4 and 7, and exposing the grains flowing in the drying chambers 4 and 4 to the hot air to dry the grains, one side of the dryer in the front-rear direction. Elevator 15 installed in the lower part and lower spiral 14 installed in the grain collection room 13
Is configured to be driven by a single electric motor 26, and a transmission mechanism for driving the lower spiral 14 is provided with a clutch mechanism 32 for turning power on and off. Grain feeding and grain circulation can be performed without any problems with a small number of motors, and the feeding valve that was required in the past is not required, and the number of parts can be reduced and the drying device can be constructed at a low price. .

Further, since there is only one motor, the power load is small and the work can be carried out well even in a low voltage area.

[Brief description of drawings]

FIG. 1 is a front view of a dryer main body.

FIG. 2 is a front sectional view of a dryer main body.

FIG. 3 is a power transmission diagram.

FIG. 4 is a perspective view of a dryer having a thrower attached thereto.

FIG. 5 is a front view of a dryer having a thrower attached thereto.

FIG. 6 is a side view of the dryer with the attached drawer.

FIG. 7 is a front view of an operation unit.

FIG. 8 is a front view of an operation unit.

FIG. 9 is a perspective view of a dryer with a ladder.

FIG. 10 is a perspective view of a dryer with a ladder.

[Explanation of symbols]

 1 Machine frame 2 Storage tank part 3 Downflow shelf 4 Grain downflow passage 5 Drying room 6 Hot air room 7 Air exhaust room 10 Air exhaust fan 15 Elevator 26 Electric motor

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hitoshi Ueji, No. 1 Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture, Technical Department, Iseki Agricultural Machinery Co., Ltd. (72) Eiji Nishino, No. 1, Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture In-house (72) Inventor Katsunori Kono 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefectural Engineering Department, Iseki Agricultural Machinery Co., Ltd. (72) Inventor Takashi Uehara, 1 Yakura, Tobe-machi, Iyo-gun, Ehime Prefecture

Claims (1)

[Claims] 1. Drying chambers 4, 4 are formed between the hot-air chamber 6 and the exhaust chambers 7, 7 on both sides of the hot-air chamber 6, and drying chambers 4, 4 are formed between the hot-air chamber 6 and the exhaust chambers 7, 7. In a drying device that dries hot grains to the grain flowing down in 4 to dry the grains, an elevator 15 disposed on one side in the front-rear direction of the drier and the grain collecting chamber 1
3 and the lower spiral 14 installed in the single electric motor 26
The grain drying device is characterized in that the power transmission system for driving the lower spiral 14 is provided with a clutch mechanism 32 for power on / off.