JPH0459067A - Agitator for liquid to be sprinkled in tank - Google Patents

Abstract

PURPOSE:To fully agitate all the liq. to be sprinkled in a tank by providing a plate member reciprocating in the tank and a screw blade generating a liq. flow proceeding to the member. CONSTITUTION:The rotating power of an engine is transmitted to a V pulley 46 through a V belt, etc., and a rotating shaft 14 is turned in the definite direction at a speed. The rotation of a plate member 24 around the shaft 14 is stopped by both guide rods 30, and a claw 15 is slid in the Napier spiral groove 16 of the shaft 14 as the shaft 14 rotates and reciprocates in the axial direction of the shaft 14. The member 24 is reciprocated in the axial direction of the shaft 14 along with the claw 52, and hence a liq. chemical 12 in a tank 10 is alternately rocked in parallel with the bottom 18 of the tank 10 and in the opposite direction. The reciprocatively rocked flow of the chemical 12 reaches the corners of the tank 10, and the chemical 12 in the tank 10 is agitated without generating a dead angle. Consequently, the agitating effect is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a spray liquid tank of a spray liquid tank installed in, for example, a speed sprayer.

[Conventional technology]

For example, a spray liquid agitation device for a chemical tank installed in a speed sprayer, boom sprayer, etc.
62830 and Utility Model Application Publication No. 63-164.931, etc.), as shown in Figure 6, the concentration of the chemical solution, which is a mixture of water and powdered solid drug, becomes uniform during the spraying operation. As such, one or more screw blades 70 are disposed at the bottom of the chemical liquid tank 10, and the screw blades 70 are rotated.

[Problem to be solved by the invention]

In the conventional stirring using the screw blade 70, the chemical liquid in the chemical liquid tank 10 is stirred by the screw blade 7 as shown in FIG. 6A.
0, collides with the side wall of the chemical liquid tank 10 facing the screw blade 70, splits to the left and right, and wraps around to the rear of the screw blade 70 along the left and right side walls of the chemical liquid tank 10, and the chemical liquid is fixed. Circulating through a curved path, the effectiveness of mixing powdered solid drugs into water decreases, and
Appropriate stirring is not performed at the corners of the chemical solution tank 10.

The purpose of this is to overcome the above-mentioned problems of the conventional technology, to ensure good agitation of the spray liquid in every corner of the spray liquid tank, and to
It is an object of the present invention to provide a spray liquid stirring device for a spray liquid tank that can significantly increase stirring power.

[Means to solve the problem]

The invention will be described using reference numerals in the drawings that correspond to the embodiments.

The spray liquid agitation device for the spray liquid tank (10) according to the present invention includes a plate member (24) that reciprocates in the direction along the bottom surface (18) within the spray liquid tank (10), and
) for generating a liquid flow toward the plate-shaped member (24).

[Effect]

In this invention, the plate member (24) reciprocates in a direction along the bottom surface (18) of the spray liquid tank (10), and transfers the spray liquid (12) in the spray liquid tank (10) to the spray liquid tank (10).
0) alternately in opposite directions along the bottom surface (18).

On the other hand, the screw blade (31) is attached to the spray liquid tank (10
) generates a liquid flow toward the plate member (24). This liquid flow collides with the plate member (24) whose position is changing every moment, is reflected, and moves toward the screw blade (31) again. This liquid flow in the return direction repeatedly collides with and reflects the liquid flow coming later from the screw blade (3).

〔Example〕

The present invention will be described below with reference to the embodiments shown in FIGS. 1 to 5.

FIGS. 1 and 2 are diagrams showing the internal structure of the chemical liquid tank 10 from the side and from above, respectively. The chemical liquid tank 10 is provided in, for example, a sprayer, and stores a chemical liquid 12 therein. The drug solution 12 is a mixture of powdery solid drugs dispersed in water. The rotating shaft 14 has a napier spiral groove 16 on its periphery, is disposed along the center line of the bottom wall 18, and is horizontally installed at a height slightly higher than the bottom wall 18 by bearings 20° 22. . The bearing 20 is attached to the bottom wall 1
8, and the bearing 22 is installed through the side wall 23 of the chemical tank 10 that is far from the bearing 20. The plate-like member 24 has a plate portion 26 extending in a horizontal direction perpendicular to the napier spiral groove 16 and a fitting portion 28 that is located between the plate portions 26 and fits into the rotating shaft 14 . The two guide rods 30 extend parallel to the rotating shaft 14, guide the plate portion 26 in the axial direction of the rotating shaft 14, and prevent relative rotation of the plate member 24 around the rotating shaft 14. There is. Screw blade 3! The rotating shaft 1 is located near the bearing 22 in the chemical tank 10.
4, and generates a liquid flow directed toward the plate member 24 in the axial direction of the rotating shaft 14.

FIG. 3 is a detailed structural diagram of the bearing 20, 22 and the fitting part 28. The bearing 20 has a sliding bearing portion 32 that pivotally supports one end of the rotating shaft I4, and a column portion 36 that is fixed to the bottom wall 18 with a bolt 34 and holds the sliding bearing portion 32 at a predetermined height. . The bearing 22 passes through the side wall 23 and connects the poles 1 to 3.
8, a ball bearing part 42 accommodated in the case 40 and pivotally supporting the other end of the rotating shaft 14, and a periphery of the rotating shaft 14 and an inner periphery of the bearing 22. It has a seal 44 that prevents leakage of the chemical solution 12 from between. The V pulley 46 is disposed outside the chemical tank 10, is integrally attached to the protruding end of the rotating shaft I4, and
(not shown), and rotational power is transmitted from the engine (not shown).

FIG. 4 is a sectional view of the fitting portion 28 in the transverse cross-sectional direction of the rotating shaft 14. In FIGS. 3 and 4, the inserter 50 is inserted from the "-" side of the fitting portion 28, and the claw 52 at the lower end is slidably fitted into the napier spiral groove 16 of the rotating shaft I4. The lid 54 is placed on the top surface of the fitting part 28 and is attached to the port 1 at 56.
The inserter 5 is fixed to the plate part 26 by the inserter 5 from the fitting part 28.
It prevents 0 from falling out. Since the plate member 24 is prevented from rotating in the circumferential direction of the rotating shaft ↑4 by the support of the plate portion 26 on the guide rod 30, the pawl 52 slides in the napier spiral groove 16 as the rotating shaft ↑4 rotates. As a result, the fitting part 2
8 moves in the axial direction of rotation @14.

FIG. 5 is a view showing the terminal end 58 of the napier spiral groove 16 of the rotating shaft 14. The napier spiral groove 16 has an
It has a curved terminal end 58. When the inserter 50 (FIGS. 3 and 4) reaches the terminal end 58, the direction of movement is reversed and the inserter 50 (FIGS. 3 and 4) moves in the axial direction of the rotating shaft 14 again. As a result, the plate member 24 reciprocates despite the rotation of the rotating shaft 14 in the same direction.

The operation of the embodiment will be explained.

The rotational power of an engine (not shown) is transmitted to the pulley 46 via a V-belt (not shown), etc., and the rotating shaft 14 rotates at a constant speed and in a constant direction. Since the plate-like portion 24 is prevented from rotating around the rotating shaft 14 by both guide frames 30, the pawl 52 slides in the napier spiral groove 16 of the rotating shaft I4 as the rotating shaft ]4 rotates. and reciprocates in the axial direction of the rotating shaft 14. The plate member 24 reciprocates in the axial direction of the rotating shaft 14 together with the pawl 52, so that the chemical liquid 12 in the chemical liquid tank 10 is moved in a direction parallel to and opposite to the bottom wall 18 of the chemical liquid tank 10. swayed alternately. The flow of the chemical liquid 12 due to this reciprocating shaking also reaches the corners of the chemical liquid tank 10, and the chemical liquid 12 in the chemical liquid tank 10 is stirred without creating a blind spot.

On the other hand, the screw blade 31 is attached to the end of the rotating shaft 14 in the vicinity of the bearing 22 so as to rotate integrally with the rotating shaft I.
4 and generates a liquid flow toward the plate-shaped member 24. This liquid flow collides with the plate member 24 whose position is changing every moment, is reflected, and moves toward the screw blade 31 again. The liquid flow in the return direction repeatedly collides with and reflects the liquid flow coming from the plate member 24 later.

The illustrated embodiment includes a rotating shaft 14 with a napier spiral groove 16.
The rotation of the plate member 24 causes the plate member 24 to reciprocate, but the plate member 24 can be directly reciprocated by an actuator such as a cylinder, or the rotational power of a motor that can be rotated in forward and backward directions can be transmitted to the plate member 24 via a pinion and a rack. However, it is also possible to reciprocate the plate member 24 by rotating the motor in forward and reverse directions.

〔Effect of the invention〕

In this invention, the spray liquid in the spray liquid tank is swung back and forth in the direction along the bottom of the spray liquid tank, instead of the circular flow in a curved path caused by only the screw blades, so that the flow direction is repeated. The mixture is reversed to facilitate agitation of the solids into the liquid. Furthermore, since the flow of the spray liquid can reach the corners of the spray liquid tank, the agitation effect at the corners is also increased.

Furthermore, in this invention, the screw blades at a fixed position generate a liquid flow toward the plate-like member that is reciprocatingly displaced,
This liquid flow collides with the plate-shaped member, is reflected, and collides with the liquid flow from the screw blades afterward, resulting in complex and diverse collisions of liquid flows within the spray liquid tank. In this way, a layer-effective stirring flow can be generated in the spray liquid tank and the stirring effect can be improved.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIGS. 1 to 5 relate to an embodiment of the present invention. FIGS. 1 and 2 are views showing the internal structure of the chemical liquid tank from the side and top, respectively, and FIG. Detailed structural diagram of the bearing and the fitting part, Figure 4 is a sectional view of the fitting part in the cross-sectional direction of the rotating shaft, Figure 5 is a detailed structural diagram of the bearing and the fitting part.
The figure shows the terminal end of the napier spiral groove of the rotating shaft, and FIG. 6 shows the agitation flow by conventional screw blades. DESCRIPTION OF SYMBOLS 10... Chemical liquid tank (spraying liquid tank), 12... Chemical liquid (spraying liquid), 18... Bottom wall (bottom surface), 24... Plate member, 31... Screw blade. Procedural Sakeguchi (spontaneous) July 1990 260

Claims (1)

[Claims] A plate member (24) that reciprocates within the spray liquid tank (10) in a direction along the bottom surface (18) and the spray liquid tank (10)
) A spray liquid stirring device for a spray liquid tank, characterized in that it has a screw blade (31) disposed at a fixed point in the spray liquid tank for generating a liquid flow toward the plate member (24).