KR102186976B1 - Agitating device - Google Patents

Abstract

The present invention relates to a stirring device, and the stirring device includes a stirring tank formed with a hollow portion; A rotating shaft mounted vertically in the center of the stirring tank and rotating; An impeller mounted on the rotating shaft and rotating inside the stirring tank; A circular jaw comprising a motor for rotating the rotation shaft, the rotation shaft being divided into two or more, and integrally formed with the lower rotation shaft; It consists of a fall bump formed on the body frame.
This configuration prevents the bending of the rotation shaft from occurring even when an overload occurs because the rotation shaft is composed of an upper rotation shaft and a lower rotation shaft. Since the lower rotation shaft is prevented from having low back pain inside the stirring tank, additional damage is prevented and durability is increased.

Description

Agitation device {AGITATING DEVICE}

The present invention relates to a stirring device, and more particularly, agitation that prevents bending of the rotating shaft when an overload occurs on the impeller and, in the worst case, prevents further damage even when the rotating shaft is damaged due to overload. It relates to the device.

In general, an agitator is mainly used to mix or agitate particulates, liquids, etc., and at least one impeller whose structure is a part of a stirring device blade that directly performs the stirring is provided on a rotating shaft, and the impeller and the rotating shaft are driven to rotate. In order to do so, a speed reducer and a drive motor are each provided, and a control panel for applying power to the drive motor and controlling the rotational speed and direction is provided.

The stirrer having such a configuration has a lot of difficulties in performing agitation because of frequent failures of its constituent members due to various reasons during its operation, as well as cases in which little damage is expanded because it is not detected early in the case of failure.

In addition, agitators are also used in various ways in industrial sites. Among these stirrers (hereinafter referred to as "stirring devices"), large agitating devices with a diameter of about 770cm, a height of about 1200cm, and a diameter of about 40cm of the rotating shaft are used. have.

Document 1: Registered Patent Publication No. 10-0449924 (announced on October 1, 2004) Document 2: Registered Patent Publication No. 10-1098974 (announced on December 28, 2011) Document 3: Registered Patent Publication No. 10-1179201 (2012.08.03. Announcement) Document 4: Registered Patent Publication No. 10-1249522 (announced on March 26, 2013) Document 5: Registered Patent Publication No. 10-1879631 (announced on July 18, 2018)

When an overload occurs on the impeller of such a large-sized stirring device, there is a problem that the rotating shaft is bent.

And if the length of the rotating shaft of the stirring device is about 1500cm, it is connected in multiple stages to form one rotating shaft.In this case, if an overload occurs on the impeller, the cutting is made at the connection part and the rotating shaft swings inside the stirring tank. Since this is made, there are problems that cause damage to the entire stirring tank.

The present invention was invented to solve the above-described problems, and an object of the present invention is to prevent the occurrence of bending when an overload occurs in the impeller, and in particular, additional damage even when the rotating shaft is damaged due to overload. It is to provide a stirring device that increases durability by preventing it.

When this object is achieved by the present invention, the stirring device according to one aspect of the present invention, a stirring tank and a hollow portion is formed; A rotating shaft mounted vertically in the center of the stirring tank and rotating; An impeller mounted on the rotating shaft and rotating inside the stirring tank; And a motor that rotates the rotating shaft, the rotating shaft is divided into two or more, the rotating shaft is composed of an upper rotating shaft and a lower rotating shaft, the upper rotating shaft is located above the stirring tank, and the upper rotating shaft And the lower rotary shaft are coupled by a flange coupling, and when an overload occurs on the rotary shaft, the flange coupling is damaged, and the rotational force of the motor is transmitted to the upper rotary shaft via a flexible flange coupling and a reducer. , A body frame is mounted on an upper end of the stirring tank, the flange coupling is located inside the body frame, and a stop member preventing the lower rotation shaft from falling into the inner space of the stirring tank is disposed at the upper end of the stirring tank. And a circular jaw integrally formed with the lower rotating shaft; Consisting of a fall bump formed on the body frame, the lower rotation shaft is spaced apart from the fall bump by a predetermined distance, and when the circular jaw of the lower rotation shaft falls on the fall bump by a detection sensor, the operation of the motor is It is characterized by being stopped.

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According to the above configuration of the present invention, the rotation shaft is composed of an upper rotation shaft and a lower rotation shaft to prevent the occurrence of bending of the rotation shaft even when an overload occurs, and in particular, even when the rotation shaft is damaged due to overload, the Since the lower rotating shaft is prevented from hitting back pain inside the stirring tank by the stop member, additional damage is prevented and durability is increased.

1 is an overall configuration diagram of a stirring device according to an embodiment of the present invention.
Fig. 2 is an enlarged view of a main part of a portion "A" shown in Fig. 1;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the same reference numerals will be used for the same parts throughout the drawings.

FIG. 1 is an overall configuration diagram of a stirring device according to an embodiment of the present invention, and FIG. 2 is an enlarged view of a main part of a portion “A” shown in FIG. 1.

As shown in the drawing, the stirring device according to the present invention, indicated by reference numeral 10, is composed of a stirring tank 20, a rotating shaft 30, an impeller 40, and the like.

The stirring tank 20 has a hollow portion, and a roof manhole 150 is mounted on the upper portion thereof so that a worker can enter and exit the inner space.

And the rotation shaft 30 is installed in a vertical direction in the center of the stirring tank 20.

The lower end of the rotation shaft 30 is spaced a predetermined distance from the bottom surface of the stirring tank 20 to the upper portion, and the impeller 40 is mounted. Therefore, when the rotation shaft 30 is rotated by the motor 100, the impeller 40 rotates, and the receptacle in the stirring tank 20 is stirred.

As shown in the drawing, a body frame 50 is mounted on the upper end of the stirring tank 20, the body frame 50 having a motor base 130 supporting the motor 100 and the motor base ( It is connected to the supporter 140 supporting 100).

The rotation shaft 30 is composed of an upper rotation shaft 31 and a lower rotation shaft 33, and the upper rotation shaft 31 is positioned above the stirring tank 20.

The upper rotation shaft 31 and the lower rotation shaft 33 are coupled by a flange coupling 60, and when an overload occurs on the rotation shaft 30, the flange coupling 60 is damaged. The flange coupling 60 is located inside the body frame 50 (see Fig. 1).

Accordingly, the rotational force of the motor 100 is transmitted to the rotation shaft 30 via the flexible flange coupling 110 and the reducer 120, and is stirred by the impeller 40.

In addition, a stop member is provided at the upper end of the stirring tank 20 to prevent the lower rotating shaft 33 from falling into the inner space of the stirring tank 20.

The stop member will be described with reference to FIG. 2.

As shown in the drawing, the stop member includes a circular jaw 71 integrally formed on the lower rotation shaft 33 and a fall bump 73 formed on the body frame 50.

Further, the lower rotation shaft 33 is spaced apart from the fall bump 73 by a predetermined distance. That is, a gap is formed between the circumferential surface of the rotating shaft 33 and the circular fall bump 73.

Therefore, when an overload occurs on the lower rotary shaft 33, the flange coupling 60 is damaged first, and the lower rotary shaft 33 freely falls downward due to the failure of the flange coupling 60. do.

Since the lower rotation shaft 33 cut while rotating is prevented from falling into the stirring tank 20, further damage to the stirring device 10 can be prevented.

The damaged rotation shaft 30 is replaced or repaired by inputting a worker using the roof manhole 150.

In another embodiment of the present invention, a proximity sensor (not shown) or a vibration detection sensor (not shown) detects that the circular jaw 71 of the lower rotation shaft 33 falls on the fall bump 73, and the The operation of the motor 100 is stopped.

What has been described above is for implementing the stirring device according to the present invention, and is not limited to the above-described embodiments of the present invention, and the present invention pertains without departing from the gist of the present invention as claimed in the following claims. Anyone of ordinary skill in the field will have the technical idea of the present invention to the extent that various modifications can be implemented.

10: stirring device, 20: stirring tank,
30: rotating shaft, 31: upper rotating shaft,
33: lower rotating shaft, 40: impeller,
50: body frame, 60: flange coupling,
71: circular jaw, 73: fall bump,
100: motor, 110: flexible flange coupling,
150: roof manhole, 140: support,
130: motor base

Claims (9)

A stirring tank in which a hollow part is formed; A rotating shaft mounted vertically in the center of the stirring tank and rotating; An impeller mounted on the rotating shaft and rotating inside the stirring tank; And a motor that rotates the rotation shaft, and the rotation shaft is divided into two or more,
The rotating shaft is composed of an upper rotating shaft and a lower rotating shaft, the upper rotating shaft is located above the stirring tank,
The upper rotation shaft and the lower rotation shaft are coupled by a flange coupling, and when an overload occurs on the rotation shaft, the flange coupling is damaged,
The rotational force of the motor is transmitted to the upper rotating shaft via a flexible flange coupling and a reducer,
A body frame is mounted on the upper end of the stirring tank, and the flange coupling is located inside the body frame,
A stop member is provided at the upper end of the stirring tank to prevent the lower rotating shaft from falling into the inner space of the stirring tank,
The stop member includes a circular jaw integrally formed with the lower rotation shaft; It consists of a fall bump formed on the body frame,
The lower rotation shaft is spaced apart from the fall bump by a predetermined distance,
When the circular jaw of the lower rotation shaft falls on the fall bump by a detection sensor, the operation of the motor is stopped.







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