KR102329960B1 - The impeller height controlling device of mixer - Google Patents

Abstract

The present invention relates to an impeller height adjuster for a mixer where mixing with an impeller is performed with a mixing tank containing a mixing material for medicine, food, chemical product, or secondary battery production. According to the present invention, the mixing material is mixed during impeller rotation by single motor driving or the position (height) of the impeller can be freely adjusted depending on the amount of the mixing material in the mixing tank. According to the present invention, a support member (30) is fixed to a frame (10) where a mixing tank (20) is installed and a shaft (60) is installed so as to be capable of ascending and descending with impellers (61) fixed. A sleeve (70) having a vertical long hole (71) is rotatably coupled to the shaft (60) and a pin (62) is fixed to the shaft (60) through the vertical long hole (71). The shaft (60) rotates together when the sleeve (70) rotates. The shaft (60) is exposed to the upper portion of a decelerator (50) and has a male thread portion (63) for a stopper (64) to be screw-coupled. A female thread portion (81) of an adjusting member (80) is screw-coupled to the male thread portion (63). Fixed to the adjusting member (80) is a protective cap (90) having a sight window (91) longer than an interval (ℓ) between a top dead center (a) and a bottom dead center (b) of the stopper (64). A shrink disk (100) is fixed to the sleeve (70) and the decelerator (50) supports the shrink disk (100).

Description

The impeller height controlling device of mixer

The present invention relates to a stirrer in which a stirring material necessary for the production of pharmaceuticals, food, chemical products, and secondary batteries is put in a stirring tank and stirred with an impeller, and more specifically, one It relates to an impeller height adjusting device of a stirrer that enables agitation of the agitated material while rotating the impeller by driving a motor, or arbitrarily adjusts the position (height) of the impeller.

In general, agitators are widely used in the chemical industry, ink dyes and pigments, adhesives, slurries, beverages, paints and varnishes, cosmetics industry, water treatment chemicals and flocculants.

In particular, a stirrer that mixes a liquid (eg, hydrochloric acid, nitric acid solution, etc.) with a slurry (eg, alumina, diolite, etc. in the form of solid powder) during a chemical process includes a motor as a driving source and a rotation according to the driving of the motor. It is composed of a speed reducer that reduces the number to improve the torque, and an impeller fixed to a shaft rotating by the speed reducer. do.

In the prior art Patent Publication No. 2002-0096565 (Prior Document 1), in the stirred tank used for manufacturing artificial marble, a plurality of impellers for stirring the stored material; a coupling connecting the shaft rod and the motor from the outside of the stirring tank; an upper wing holder whose upper surface is fixed to the shaft rod extending from the shaft rod to the upper edge of the shaft in an inclined form to connect the impeller; And a stirrer comprising a lower wing holder fixed to the end of the shaft rod and connecting the impeller has been disclosed.

In the conventional utility model No. 201957 (Prior Document 2), a configuration in which a guide rail is horizontally formed on the upper end of the shaft, and a circular motion pin fitted to the guide rail is rotated to raise and lower the shaft has been proposed.

(Prior art literature)

(Patent Document 0001) Republic of Korea Patent Publication No. 10-2002-0096565 (published on Feb. 31, 2002)

(Patent Document 0002) Republic of Korea Registered Utility Model Publication 20-0201957 (2000.11.01. Announcement)

(Patent Document 0003) Republic of Korea Utility Model Publication No. 20-0487924 (2018.11.22. Announcement)

(Patent Document 0004) Japanese Unexamined Utility Model Publication No. 6-072632 (published on Oct. 11, 1994)

However, in this prior art document 1, since the height is not adjusted in a state in which the shaft is coupled to the upper part of the stirred tank, when applied to a stirred tank having different heights, uniform stirring is not achieved due to the height difference between the impeller and the stirred tank bottom There was a problem that didn't work.

In addition, in Prior Document 2, even if the shaft is raised and lowered, the stroke is constant and the impeller coupled to the lower end of the shaft is raised and lowered together. Since a complex structure is required to continuously ascend and descend, there is a problem such as poor practicality.

The present invention has been devised to solve the problems of the prior art, and the structure is remarkably improved to rotate the impeller using one motor depending on the size of the stirred tank or the amount of agitated material put into the stirred tank, The purpose of this is to make it possible to easily adjust the height of the impeller to an arbitrary height.

Another object of the present invention is to enable the operator to visually check the position of the stopper through the sight window formed in the protective cap in the process of adjusting the height of the impeller, thereby preventing the stopper from colliding with the structure in advance.

According to the aspect of the present invention for achieving the above object, a support member is fixed to a frame in which a stirring tank is installed, and a shaft on which the plurality of impellers are fixed is installed to be lifted and lowered, and a sleeve having a vertical long hole is rotated on the shaft. By fixing the pin to the shaft through a vertical long hole together with possible coupling, the shaft rotates together when the sleeve is rotated, and the shaft exposed to the upper part of the reducer is formed with a male screw part to which a stopper is screwed, and the male screw part of the adjusting member is The female screw part is screwed, and a protective cap having a see-through window formed longer than the interval between top and bottom dead center of the stopper is fixed to the adjusting member, and a shrink disk is fixed to the sleeve so that the shrink disk is supported by the reducer. An impeller height adjustment device of the agitator is provided.

The present invention has the following advantages over the prior art.

First, when adjusting the height of the impeller according to the amount of agitated material, while rotating the shaft clockwise or counterclockwise by driving the motor, the rotation is stopped by gripping the adjusting member screwed to the male screw part of the shaft, and then the impeller is at the desired point. As long as the external force is removed from the adjusting member when it is reached, the height adjustment of the impeller is completed, so that the operation of adjusting the height of the impeller becomes convenient.

Second, when adjusting the position of the impeller, since the operator checks the position of the stopper through the sight window formed in the protective cap, it is possible to precisely adjust the position of the impeller.

Third, since the shrink disk is fixed to the sleeve, the frictional force with the reducer is minimized while preventing the shaft from falling.

1a and 1b are longitudinal cross-sectional views showing the main part of the present invention,
Figure 1a is a state diagram in which the impeller is positioned at top dead center;
Figure 1b is a state diagram in which the impeller is positioned at the bottom dead center;
2 is a front view showing the axis of the present invention;
3 is a longitudinal cross-sectional view showing the adjusting member of the present invention;
Figure 4 is a state diagram in which the sleeve fitted with the shaft of the present invention is supported on the speed reducer by a shrink disk;
5 is a longitudinal cross-sectional view showing the protective cap of the present invention;

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily implement them. The present invention may be embodied in several different forms and is not limited to the embodiments described herein. It is noted that the drawings are schematic and not drawn to scale. Relative dimensions and proportions of parts in the drawings are shown exaggerated or reduced in size for clarity and convenience in the drawings, and any dimensions are illustrative only and not limiting. In addition, the same reference numerals are used to indicate like features to the same structure, element, or part appearing in two or more drawings.

1A and 1B are longitudinal cross-sectional views showing the main part of the present invention. In the present invention, the support member 30 is fixed to the upper part of the frame 10 in which the stirring tank 20 is installed, and the support member 30 has a motor. A reduction gear 50 is provided which increases the torque while decelerating the rotation speed in accordance with the driving of (40).

Since the configuration of the reducer 50 is already widely known, a detailed configuration and description thereof will be omitted.

A shaft 60 as shown in FIG. 2 in which a plurality of impellers 61 are fixed inside the reducer 50 and the support member 30 is installed so as to be able to ascend and descend, and the shaft 60 has a vertical long hole 71 ), the formed sleeve 70 is rotatably coupled, and a gear 72 engaged with the driven gear 51 of the reduction gear 50 is fixed at a predetermined position of the sleeve 70 .

Therefore, when the pin 62 is inserted into the vertical long hole 71 as shown in FIG. 2 and fixed to the shaft 60 so that both ends of the shaft 60 are positioned in the vertical long hole 71, the motor 40 is driven and the reducer ( As the driven gear 51 rotates in a state decelerated by 50 , the shaft 60 rotates together with the sleeve 70 .

A male screw part 63 is formed on the shaft 60 exposed to the upper part of the reduction gear 50 , and the female screw part 81 of the adjusting member 80 is screwed to the male screw part 63 . The member 80 is assembled to the sleeve 70 with a plurality of bearings 82 and 83 so as to be idling.

The female screw portion 81 may be directly formed on the adjusting member 80 and screwed to the shaft 60, but in an embodiment of the present invention, as shown in FIG. 3, the female screw portion 81 is formed of a non-metallic material. The ring 84 is precision-machined and fitted with an interference fit.

At this time, on the lower surface of the adjusting member 80 , the bearing support ring 85 is a part of the bearing 83 so that the adjusting member 80 installed in the sleeve 70 does not sag to be supported by the bearing 83 on the shaft 60 . It is fixed by a plurality of bolts (not shown) so as to span the

Accordingly, as the shaft 60 is rotated clockwise or counterclockwise by the driving of the motor 40 in a state where no external force is applied to the adjusting member 80 , the adjusting member 80 rotates together with the shaft 60 . .

In addition, in one embodiment of the present invention, the protective cap 90 having a see-through window 91 is fixed to the adjusting member 80 as shown in FIG. A stopper 64 is screw-coupled to the male screw part 63 to adjust the stroke of the shaft 60 .

At this time, the height of the see-through window 91 formed in the protective cap 90 is formed to be longer than the interval (ℓ) between the top dead center (a) and the bottom dead center (b) of the stopper 64, which is the impeller 61 ) to accurately identify the stopper 64 with the naked eye through the viewing window 91 in the process of adjusting the height of the stopper 64 to fundamentally solve the phenomenon in which the stopper 64 collides with the appliance.

In addition, it is understandable that a transparent material cover (not shown) may be installed on the viewing window 91 so that foreign substances do not flow into the inside of the protective cap 90 through the viewing window 91 .

A shrink disk 100 is installed in the sleeve 70 positioned under the adjusting member 80 to be supported by the spacer 110, and the bottom surface of the shrink disk 100 is a reducer ( It is fixed to the sleeve 70 so as to be supported by 50, which is a reducer ( 50) to minimize the frictional force.

The operation of the present invention will be described as follows.

First, Figure 1a is a state diagram in which the impeller 61 fixed to the shaft 60 is located at top dead center, and in this state, a stirred material (not shown) is put into the stirring tank 20 and then the motor 40 The sleeve 70 rotates because the driven gear 51 is rotated in a state in which the rotational speed of the motor 40 is reduced in the speed reducer 50 as power is applied to the .

When the sleeve 70 rotates, both ends of the pin 62 of the shaft 60 are fitted into the vertical long hole 71 of the sleeve 70, so that the shaft 60 to which the impeller 61 is fixed rotates together while the stirring tank The stirred material in (20) is stirred.

In this way, when the shaft 60 rotates while stirring the stirring, external force is not applied to the adjusting member 80 screwed to the male screw part 63 of the shaft 60, so that the adjusting member 80 is the shaft 60 ), so that the height of the impeller 61 does not vary.

However, if the position of the impeller 61 is to be varied according to the amount of agitated material, the operator is screwed to the male screw part 63 of the shaft 60 when the shaft 60 is rotated by the driving of the motor 40. As long as the rotation of the adjusting member 80 is stopped by gripping the adjusting member 80 , the position of the shaft 60 is changed, so that the height of the impeller 61 can be adjusted.

That is, if the operator stops the rotation of the adjusting member 80 by holding the adjusting member 80 while rotating the motor 40 in a counterclockwise direction in a state in which the impeller 61 is positioned at top dead center as shown in FIG. 1A, control Since the shaft 60 screwed to the member 80 is lowered, the position of the impeller 61 is changed as shown in FIG. 1B .

At this time, since the pin 62 fixed to the shaft 60 and fitted into the vertical long hole 71 descends along the vertical long hole 71, the sleeve 70 and the shaft 60 rotate together, so the shaft 60 descends. Even so, interference by the pin 62 does not occur.

As such, when the shaft 60 descends, the stopper 64 screwed to the male screw part 63 of the shaft 60 also descends together with the shaft 60, and the operator descends with the shaft 60. ) was confirmed through the viewing window 91 formed in the protective cap 90, and the height of the impeller 61 was adjusted to the desired position, and when the external force was removed from the adjusting member 80, the adjusting member 80 Since it rotates with the shaft 60 again, the control operation of the impeller 61 is completed.

On the other hand, in the case of wanting to raise the position of the impeller 61 located at the bottom dead center (b) as shown in FIG. 1b , in the process of rotating the motor 40 clockwise in the opposite direction as described above, the operator uses the adjusting member 80 ), the position of the stopper 64 was confirmed through the sight window 91 of the protective cap 90, and when the stopper 64 reached the desired point, the external force was removed from the adjusting member 80. It is understandable that the impeller 61 is raised.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those of ordinary skill in the art to which the present invention pertains will understand that the present invention may be implemented in other specific forms without changing the technical spirit or essential features. will be.

Therefore, the embodiments described above are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention described in the above detailed description is indicated by the following claims, meaning and All changes or modifications derived from the scope and its equivalents should be construed as being included in the scope of the present invention.

10: frame 20: stirred tank
30: support member 40: motor
50: reducer 60: axis
61: impeller 62: pin
63: male thread 64: stopper
70: sleeve 71: vertical long hole
80: adjusting member 81: female thread part
90: protective cap 91: sight window
100: shrink disc

Claims (2)

By fixing the support member 30 to the frame 10 in which the stirring tank 20 is installed, the shaft 60 to which the plurality of impellers 61 are fixed is installed so as to elevate and descend, and the shaft 60 has a vertical long hole. The shaft 60 is rotated together when the sleeve 70 is rotated by fixing the pin 62 to the shaft 60 through the vertical long hole 71 while rotatably coupling the sleeve 70 with the 71 formed therein. A male screw portion 63 to which a stopper 64 is screwed is formed on the shaft 60 exposed to the upper portion of the reduction gear 50, and the female screw portion 81 of the adjusting member 80 is formed on the male screw portion 63. is screwed, and a protective cap 90 having a see-through window 91 formed longer than the interval (ℓ) between the top dead center (a) and the bottom dead center (b) of the stopper 64 is fixed to the adjusting member 80 and An impeller height adjusting device of a stirrer, characterized in that the shrink disk (100) is fixed to the sleeve (70) so that the shrink disk (100) is supported by the reducer (50).


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