JPH0425241Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a mechanical stirring device for a storage tank used in a chemical sprayer such as a speed sprayer.

[Prior Art] The conventional method of installing such a mechanical stirring device in a storage tank is to provide a flange for mounting the stirring device on the side of the storage tank, and attach a packing so that the shaft center of the stirring device is concentric with the flange. It is attached to the flange with bolts etc.

[The problem that the idea aims to solve]

Therefore, if the shape of the blades of the stirring device, especially the outer diameter of the blades, is changed in similar models, the distance between the lower edge of the blades and the bottom of the storage tank will increase.
Stirring ability decreases. In addition, in order to change the height of the lower edge of the blade to avoid this, the position of the flange on the side of the tank must be changed each time, making it impossible to maintain the commonality of the tank and There is a problem in that classification, etc. is required, and furthermore, the number of identical tanks produced decreases, increasing the cost of the tank.

The purpose of this invention is to enable the agitation device to be installed at an appropriate position in the storage tank despite the difference in the outer diameter of the blades.

[Means to solve the problem]

According to this invention, the storage tank has an inlet and an outlet opening outward, and a stirring blade rotatable by a driving means is attached to the inner edge. The stirring device has a radially eccentric bulge formed on the outer edge and a through hole formed in the cylindrical casing with an inner circumferential edge having a different diameter in the longitudinal direction. The stirring shaft has a driving means attached to one end and a stirring blade detachably fitted to the other end, and is fixed through the shaft via a bearing and a sealing device. The stirring device is detachably fixed from the outside of the storage tank, and the position of the axis can be selected by appropriately rotating the housing.

〔Example〕

Embodiments of this invention will be described below based on the accompanying drawings.

FIG. 5 is a plan view showing the stirring device together with its peripheral parts. The stirring device 1 has a pulley 2 as a driving means at one end, a stirring shaft 4 on which a stirring blade 3 is removably fitted at the other end, and is attached to the side edge of a storage tank 5. Power is transmitted to the pulley 2 from the engine 6 via a pulley 7 and a belt 8. The storage tank 5 has an inlet and an outlet (not shown) for introducing and discharging liquid.

Figures 1 and 2 show a first embodiment of this invention, with Figure 1 being a vertical sectional view of the stirring device;
The figure is a side view seen from the right side of FIG. The flange 12 has a circular hole 13 formed therein and is fixed to the side edge of the storage tank 5. Housing 1 of stirring device 1
4 has a bulge 15 extending in the radial direction on its outer edge, and is provided with a through hole 16 extending in the longitudinal direction.

The stirring shaft 4 passes through the through hole 16 and is rotatably supported on the inner edge of the through hole 16 via a bearing 17 . Multiple oil seals 1 as a sealing device
8 is disposed between the outer edge of the stirring shaft 4 and the inner edge of the through hole 16 to prevent liquid leakage.
The retaining ring 19 prevents the bearing 17 from coming off. The flange 12 has screw holes 24 arranged at equal angular intervals in the circumferential direction.
are bored, and through holes 28 are bored in the peripheral edge of the bulge 15 corresponding to these screw holes 24, and the stirring device 1
is removably secured to the flange 12 from the outside of the storage tank 5 by tightening the bolt 26 into the screw hole 24 through the through hole 28. The bulging portion 15 is eccentric with respect to the stirring shaft 4, and a packing 27 is interposed between the flange 12 and the bulging portion 15 to maintain liquid tightness. 30 and 31 indicate the central axes of the flange 12 and the stirring shaft 4, respectively. As is clear from FIG. 2, the stirring device 1 is eccentric in the vertical direction, and 32 in FIG. The locus of the center of the stirring shaft 4 is shown.

To explain how to attach the stirring device 1, the center of the bulging portion 15 coincides with the center of the hole 13, that is, it is possible to attach the stirring device 1 to the flange 12 at any rotational position of the housing 14. Further, as the housing 14 rotates, the height of the horizontal plane of the central axis 31, that is, the height of the stirring blade 3 can be changed. Therefore, the casing 14 is placed so that the stirring blade 3 is at a height that maximizes the stirring capacity.
Select the rotational position of the stirring device 1 and move it to the flange 12.
Fixed to. In order to increase the selectivity of the height of the stirring blade 3, the number of screw holes 24 and bolts 26 may be increased.

Figure 3 is a vertical cross-sectional view of the stirring device, and Figure 4 is a vertical cross-sectional view of the stirring device.
It is a side view seen from the right side of a figure. To explain only the differences from the first embodiment, a threaded portion 42 is formed on the outer edge of the bulge 15, and the bulge 15 is screwed into a threaded groove on the inner edge of the hole 13 of the flange 12. Loosening is prevented by a lock nut 40 as a fastening device. Liquid tightness between the outer edge of the bulge 15 and the inner edge of the flange 12 is maintained by an O-ring 41. In this embodiment, since the rotational position of the housing 14 can be adjusted steplessly, the height of the stirring blade 3 can be adjusted steplessly.

In this manner, various stirring devices 1 having stirring blades 3 having different outer diameters can be attached to the storage tank 5 at their optimum positions.

[Effect of idea]

As described above, according to this invention, the height of the stirring blade changes by rotating the housing, and the bulge portion is formed by rotating the opening for attaching the stirring device on the side edge of the storage tank. Since it is blocked according to the position, one stirring device can be attached to the storage tank so that its stirring blade is located in the optimum position within the storage tank. As a result, the commonality of storage tanks can be ensured, making management convenient and reducing the cost of storage tanks.

[Brief explanation of the drawing]

Figures 1 and 2 show a first embodiment of this invention, with Figure 1 being a vertical sectional view, Figure 2 being a right side view of Figure 1 as a front view, Figures 3 and 2 being a right side view of Figure 1 as a front view. 4
The figures show a second embodiment of this invention, Fig. 3 is a vertical sectional view, Fig. 4 is a right side view when Fig. 3 is a front view, and Fig. 5 shows the stirring device in its surroundings. FIG. In the figure, 1... Stirring device, 2... Pulley (driving means), 3... Stirring blade, 4... Stirring shaft,
5...Storage tank, 14...Casing, 15...Bulging portion, 16...Through hole, 17...Bearing, 18...Oil seal (sealing device).

Claims (1)

[Claims for Utility Model Registration] 1. In an agitation device for a storage tank, the agitation device is equipped with an inlet and an outlet opening outward, and a stirring blade rotatable by a drive means is attached to the inner edge of the agitation tank. The device includes a cylindrical housing having a radially eccentric bulge formed on the outer edge and a through hole having an inner circumferential edge having a different diameter in the longitudinal direction, and the drive means at one end. , a stirring shaft having the stirring blade removably fitted to the other end thereof is penetrated and fixed in a water-tight manner via a bearing and a sealing device, the stirring device is removably fixed from outside the storage tank, and A stirring device for a storage tank that allows the position of the axis to be selected by appropriately rotating the casing. 2. The stirring device for a storage tank according to claim 1, wherein the casing has a plurality of through holes formed near the side edge of the bulging portion and can be locked to the storage tank. 3. The stirring device for a storage tank according to claim 1, wherein the casing has a threaded portion formed on its outer periphery and can be locked to the storage tank by a fastener.