JPH10238499A - Air fan with air direction adjuster - Google Patents

Abstract

PROBLEM TO BE SOLVED: To diverge or converge an air flow blown from an air fan with a rectifier louver by extending a fan outer cylinder of the air supplying fan, housing the top of an air direction adjusting cone inside an inside space in such a manner as to face toward an inlet side, and vertically moving the cone on a screw shaft of a driver. SOLUTION: The end of a screw shaft 8 disposed on the center line of an air fan 1 with a rectifier louver and connected directly to an output shaft of a bevel gear 7 is supported by a holding bearing 10 disposed in a cross member 9. An air direction adjusting cone 3 is attached to a female screw 11 to be engaged with the screw shaft 8, and thus, it can linearly slide at the inner face of a fan outer cylinder 2. In the state in which the air direction adjusting cone 3 is most descended by a controller consisting of a position detecting sensor, air from the air fan 1 flows slantwise outward in a clearance between a fan outer cylinder 2 and the air direction adjusting cone 3 along the slope of the air direction adjusting cone 3, thereby constituting a divergent air flow and a convergent air flow along the center axis at the most elevated position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air supply fan installed on a ceiling in a livestock barn to control the direction of air supply and the amount of air flow in order to maintain the temperature of the livestock in keeping livestock within predetermined conditions. About air supply fans who can do it.

[0002]

2. Description of the Related Art In a conventional livestock barn, a mainstream air supply fan equipped with a "rectifying looper" for adjusting an air flow on a blowout side of the air supply fan is mainly used, and in particular, the direction of the blown air is controlled. At present, there is nothing that can be done.

[0003]

In raising livestock in a barn, in addition to controlling the temperature of livestock,
It is necessary to control the drying conditions such as litter, and to improve the environment in the livestock barn by reducing the amount of gas generated by drying the floor.
At present, an air supply fan is installed on the ceiling and the wind is blown toward the floor, but there is no effective air supply, and a simple and effective device that can adjust the wind direction has been developed.・ Provided long-awaited.

[0004]

Means for Solving the Problems To achieve the above object, a study was made on whether the problem could be solved by devising the outlet side of the air supply fan or not. In order to extend the fan outer cylinder (2) of the air supply fan (1) with a rectifying looper, the fan direction adjusting cone (3) is housed in the inner space with the top of the wind direction adjusting cone (3) directed toward the entrance side. By moving up and down on the screw shaft (8), the air flow flowing along the wind direction adjusting cone (3) causes "converged wind"
And "Spread the wind". Usually, a plurality of air supply fans are installed in a livestock barn, so by centrally controlling these air supply fans, the problems with the conventional method will be completely resolved and a comfortable indoor environment will be secured. Can be done.

[0005]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an air supply fan with a wind direction adjusting device constructed as described above. In FIG. 4-A, the wind direction adjusting cone (3) is shown in a state where it is most lowered,
As shown in the direction of the arrow, the air is blown in the direction of “spreading the air flow”. In FIG. 4-B, the wind direction adjusting cone (3) is shown in a state where it is raised most, and blows out in a direction "to converge the air flow" as shown by the direction of the arrow.
The control of the actual blowing direction and the control of the air volume can be repeated by fine adjustment in accordance with a program previously input to the computer (14) of the control means (5), so that a comfortable indoor environment can be maintained.
In actual application, the effects of setting the angle of the wind direction adjusting cone (3), setting the gap size with the fan outer cylinder (2), and adjusting the number of installations, etc., to appropriate design conditions are effective. It is possible to make it a typical facility.

[0006]

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan sectional view of the present invention.
Screw shaft (8) directly connected to the output shaft of bevel gear device (7) mounted on the center line of air supply fan with rectifying looper (1)
A wind direction adjusting cone (3) is attached to a female screw (11) fitted on a screw shaft (8) supported by a holding bearing (10) mounted on a cross member (9),
The inner surface of the fan outer cylinder (2) can be slid linearly through a plurality of casters (12) provided at the bottom of the outer periphery. FIG. 2 is a side sectional view of the present invention. A pulse-operated geared motor (6) with a driving brake, which is a driving source for adjusting the position of the wind direction adjusting cone (3), is mounted on the outer peripheral surface of the fan outer cylinder (2), and is connected via an output shaft. Bevel gear (7)
Drive. FIG. 3 shows a front view of the present invention. The relationship between the position and fit between the fan outer cylinder (2) and the wind direction adjusting cone (3), and the relationship between the mounting position of the caster (12) to the wind direction adjusting cone (3) are shown. 3) shows the positional relationship of the mounting to the fan outer cylinder (2) and the mounting state of the holding bearing (10). The position of the position detection sensor (13) mounted on the outer peripheral surface of the fan outer cylinder (2) is determined by the position of the caster (12).
It is mounted so that the position of the can be detected. FIGS. 4A and 4B show the mutual positional relationship between the wind direction adjusting cone (3) and the fan outer cylinder (2), and the relationship between the airflow at each position. FIG. 4-A shows a state in which the wind direction adjusting cone (3) is lowered most. In this state, the air flow blown out from the air supply fan hits the slope of the wind direction adjusting cone (3), flows along the slope, passes through the gap with the fan outer cylinder (2), and obliquely outwards. It will constitute a flowing and diffused air flow. On the other hand, in FIG. 4B, since the wind direction adjusting cone (3) is at the highest position, it is blown out as a flow along the inner surface of the fan outer cylinder (2). Air flow ". Among the combinations of positional relationships in the above configuration, the positional relationship of the wind direction adjusting cone (3) is reliably controlled by pulse control, and the position detection sensor (13) serves to prevent runaway at the upper and lower ends. Thus, reliable control can be executed via the control means (5). FIG. 5 shows a connection diagram of a control system by the control means (5). According to a program which is input to the computer (14) in advance, fine control can be performed throughout the four seasons in accordance with the control corresponding to the sensed temperature of the livestock in the livestock barn and the condition such as the humidity of the floor surface.

[0007]

The present invention has the following effects by being configured as described above. B) Stress can be resolved by controlling the temperature of livestock. Livestock in livestock pens are very sensitive to changes in the perceived temperature, and this change adds stress and reduces productivity, so maintaining the perceived temperature within a predetermined range ensures stable production throughout the four seasons. Nature can be secured. B) The growth balance will be maintained. Livestock in the barn constantly move around in search of a comfortable environment, but lively livestock always occupy a good place, and the vulnerable people lose their shelter and spend time in poor places. At present, this is an imbalance of growth in the same barn. According to the present invention, since the inside of the house is maintained in an evenly comfortable environment, the growth balance is maintained, and a significant improvement in productivity can be expected. C) By drying the floor, the environment inside the barn can be improved. Excrement and the like are deposited on the litter on the floor in the barn. Hazardous gases such as hydrogen sulfide and ammonia gas are generated from these sediments, but by keeping the floor dry, it is possible to minimize the generation of harmful gases and improve the environment. As a result, high-quality livestock breeding becomes possible. D) It becomes easier to respond to seasonal changes. The temperature inside the building changes with the change in the four seasons, which affects the livestock's bodily sensible temperature. By setting the program to be able to cope with the environment, it is possible to maintain the indoor environment that is generally not easily affected by changes in the four seasons.

[Brief description of the drawings]

FIG. 1 is a plan sectional view of an embodiment of an air supply fan with a wind direction adjusting device.

FIG. 2 is a side sectional view of an embodiment of an air supply fan with a wind direction adjusting device.

FIG. 3 is a front view of an embodiment of an air supply fan with a wind direction adjusting device.

FIG. 4-A is a cross-sectional plan view showing an air flow in a state where a wind direction adjusting cone is at a lowermost end in the embodiment of the air supply fan.

FIG. 4-B is a cross-sectional plan view showing an air flow in a state where a wind direction adjusting cone is at an uppermost end in the embodiment of the air supply fan.

FIG. 5 is a connection diagram of a control system by control means in the embodiment of the air supply fan.

[Explanation of symbols]

 1 Air supply fan with rectifying looper. 2 Juan outer cylinder. 3 Wind direction adjustment cone. 4 Drive. 5 Control means. 6 Pulsed geared motor with drive brake. 7 Bevel gear device. 8 Screw shaft. 9 Cross members. 10 Holding bearing. 11 Female thread part. 12 casters. 13 Position detection sensor. 14 Computer. 15 Inverter.

Claims (3)

[Claims] A drive device (1) for adjusting the position of a wind direction adjusting cone (3) mounted in a supply air fan (1) with a rectifying looper so as to be able to slide back and forth on the center line of a fan outer cylinder (2). 4) Computer (14)
By performing control to move up and down on the central axis via a control means (5) composed of a motor, an inverter (15) and a position detection sensor (13), it is possible to diffuse or converge the wind direction blown from the air supply fan. Air supply fan with wind direction adjustment device. 2. An air supply fan (1) with a rectifying looper, which is connected to the center of the looper via an output shaft of a pulsed geared motor (6) with a driving brake mounted on the outer periphery of a fan outer cylinder (2). The shaft end of the screw shaft (8) driven by the output shaft of the provided bevel gear device (7) is connected to a drive device (4) supported by a holding bearing (10) mounted on a cross member (9). A wind direction adjusting cone (3) is attached to a female screw portion (11) fitted on a screw shaft (8), and a plurality of casters (12) provided on the outer peripheral bottom side of the fan outer cylinder (3). 2. The air supply fan with a wind direction adjusting device according to claim 1, wherein the air supply fan has a configuration in which the inner surface of (2) can slide up and down linearly. 3. An air supply fan with a rectifying looper, a position detection sensor for detecting a position of a wind direction adjusting cone, and an air supply fan with a rectifying looper.
Computer (1) that controls the output of the motor and the output of the pulsed geared motor (6) with a driving brake
The air supply fan with a wind direction adjusting device according to claim 1 or 2, further comprising control means (5) for controlling the inverter (4) and the inverter (15) by a program input in advance.