KR101977335B1

KR101977335B1 - Mechanical seal of keg for Takju cooling device

Info

Publication number: KR101977335B1
Application number: KR1020170041383A
Authority: KR
Inventors: 이상철
Original assignee: 이상철
Priority date: 2017-03-31
Filing date: 2017-03-31
Publication date: 2019-05-13
Also published as: KR20180111039A; WO2018182325A1

Abstract

The present invention relates to a mechanical seal for a housing for a Takju refrigerator in which the compression spring is improved to have a structure of a leaf spring to enhance a sealing force and to be easily cleaned and comprises a stator, a rotor and an elastic member, The mechanical seal of claim 1, wherein the fixed contact is coupled to the stator, the rotor is coupled with the rotating contact portion that rotates in surface contact with the fixed contact portion, And the sealing stopper is formed with a female screw threadably engaged with the male screw formed on the rotating shaft so as to prevent contaminants from flowing into the inside of the sealed stopper, So that the rotation contact portion and the fixed contact portion are in close contact with each other. The elastic member is easy to clean, And a pair of inclined portions in the form of a cone are vertically symmetrically formed so as to increase the elastic force in the up and down direction so as to increase the elastic force in the up and down direction. We propose a mechanical seal for the refrigerator.
Therefore, according to the present invention, since the joint portion of the elastic member is tightly closed by the contact ring and the close contact portion, and the inner side is completely sealed by the leaf spring structure of the elastic member having the shape of the cylinder or the cone, It is possible to not only block the source but also to facilitate washing, which is more convenient. In addition, since the elastic member has a simple structure, it is more easily manufactured, and the mechanical seal can be easily assembled.

Description

{Mechanical seal of keg for Takju cooling device}

The present invention relates to a mechanical seal coupled to a rotating shaft of a stirring device installed in a cake for a Takju refrigerator. More particularly, the present invention relates to a mechanical seal for improving the sealing force of a compression spring by a leaf spring structure, The present invention relates to a mechanical seal for use.

In general, a mechanical seal is a surface contact type sealing device for sealing a motor shaft which is fastened to a pump or a turbine of a generator, and is sealed by an oil film formed by a stator perpendicular to the motor shaft and a rotor contacting each other And is a device that allows the rotor to rotate with the motor shaft so that the seal with the stator can be continuously maintained by the tension of the spring or the pressure of the fluid.

The mechanical seal is prevented from leakage and inflow of fluid by the rotation due to the close contact with the surface. The shaft wear occurs only on the seal face. The tension of the mounted spring automatically compensates for the worn portion. There is an advantage that the sealing can be continuously performed.

1, the mechanical seal is provided with a stator 61 fixedly installed with silicon carbide or cemented carbide, and the stator 61 has a ring 61b protruding downward in a circular casing 61a Respectively.

The motor shaft is provided with a rotor 62 which rotates in surface contact with the protruding surface of the ring 61b. The rotor 62 protrudes upward slightly inside the casing 62a, A circular ring 62b in surface contact with the ring 62b is provided.

A spring stopper 64 is fixed to the motor shaft and is spaced from the rotor 62. A spring 63 is interposed between the spring stopper 64 and the rotor 62 to compress As shown in FIG.

However, when the conventional mechanical seal 60 is installed on the rotary shaft of the device for stirring the food, the food residue is gradually accumulated between the spring 63 and the rotary shaft, which is not good for hygiene and easy to clean There was a problem that it did not.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a mechanical seal for a cabinet for a Takju refrigerator in which the structure of a compression spring is improved to prevent debris of a takju from accumulating on a rotary shaft, .

Another object of the present invention is to provide a mechanical seal for a cabinet for a Takju refrigerator which is easier to manufacture and assemble an elastic member by a simple structure.

The mechanical seal for a Takju refrigerator according to the present invention comprises a stator, a rotor, and an elastic member, and is coupled to a rotating shaft of the stirring device and stirs the takju by rotation, A stationary contact portion is coupled to the stator, a rotating contact portion that rotates while contacting the stationary contact portion in a face-to-face relationship is coupled to the rotor, and an elastic member is coupled between the rotor and the sealed stopper, The inner surface of the inner circumferential surface is formed with a female screw threadedly engaged with the male screw so as to prevent contaminants from entering the male screw. The elasticity of the elastic member is controlled by a screw rotation method to closely contact the rotary contact portion and the fixed contact portion. And a plate spring with a shielding function to prevent the takju stem from entering the inside And a pair of inclined portions in the shape of a cone are vertically symmetrically formed so as to increase the elastic force in the vertical direction.

According to the mechanical seal of the present invention, the joint portion of the elastic member is tightly closed by the contact ring and the close contact portion, and the inner side is completely closed by the leaf spring structure of the elastic member in the shape of a cylinder or a cone By sealing, it is possible to not only prevent the intake of debris of the takju from the inside, but also to facilitate washing, which is more convenient.

In addition, since the elastic member has a simple structure, it is more easily manufactured, and the mechanical seal can be easily assembled.

1 is a cross-sectional view of a conventional mechanical seal
2 is a perspective view of the Takju cooling apparatus according to the present invention.
Fig. 3 is a perspective view showing the mechanical seal of the present invention,
Fig. 4 is a cross-sectional view of the casing in which the mechanical seal of the present invention is installed
5 is a bottom perspective view of a cover provided with a mechanical seal of the present invention.
6 is a cross-sectional view of a mechanical seal according to the present invention
Fig. 7 is a sectional view of the elastic member according to the first embodiment
8 is a cross-sectional view of the elastic member according to the second embodiment

Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2, the reservoir refrigerator has a space for accommodating the keg 40 inside the main body 10, and the main body 10 is provided with a space, A door 11 which can be opened and closed is coupled to the open front side of the door.

A cooling device 20 is installed at one side of the main body 10 to operate the power of the takge and is kept separated from the cooling device 20, 40 are replaceable.

The upper end of the main body 10 is coupled to a takgeo pipe 30 connected to the keg 40 and having a leading end drawn out to the outside of the main body 10. A valve handle 31 and a nozzle 32 .

3 and 4, the stirrer 50 is coupled to the upper portion of the keg 40, and the stirrer 50 is disposed above the stirrer 50, And a drive motor 51 is coupled to the take-up shaft 41. The take-up shaft 41 is coupled through the inside of the peg 40.

A rotation shaft 44 extending through the cover 42 and extending to the inside of the keg 40 is vertically coupled to the rotation shaft of the driving motor 51. A driving motor 51 And an impeller 45 that rotates together by rotation is engaged.

Therefore, the stirrer 50 stirs the sediment of the takju stored inside the keg 40 by the rotation of the rotating shaft 44 and the impeller 45 so that it does not sink to the bottom.

A cover 42 is coupled to the upper side of the keg 40 as shown in Figure 5. The cover 42 closes the opening of the keg 40 or opens the opening of the keg 40, Takju can be packed and transported or stored.

A mounting portion 43 penetrating upward and downward is protruded downward from the lower center portion of the cover 42. The mechanical seal 100 of the present invention is coupled to the mounting portion 43 and the mechanical seal 100 Is connected to a rotary shaft 44 connected to the drive motor 51. [

6, the mechanical seal 100 is provided with a stator 70 fixed to the mounting portion 43 of the cover 42 on the upper side and a fixed contact portion 70a is provided on the lower side of the stator 70, .

The fixed contact portion 70a protrudes slightly below the bottom surface of the stator 70 and a rotation contact portion 71a coupled to the upper side of the rotor 71 is formed on the bottom surface of the fixed contact portion 70a, The rotor 71 rotates together with the rotation of the rotation shaft 44 by surface contact with the fixed contact portion 70a.

A sealing stopper 73 is interposed between the rotor 71 and the rotary shaft 44. An elastic member 80 is interposed between the rotor 71 and the sealing stopper 73, ).

The elastic member 80 is installed in close contact with the upper side and the lower side by a close contact ring 72 which is coupled to the rotor 71 and the sealing stopper 73, respectively.

The sealing stopper 73 presses the elastic member 80 upward to apply an elastic force so that the rotation contact portion 71a of the rotor 71 can closely contact the stationary contact portion 70a. The inner surface of the cover 73 is formed with a female screw threadably engaged with the male screw formed on the rotary shaft 44. The elastic force of the elastic member 80 can be controlled by the screw rotation of the elastic member 80 without contaminating the inner side.

As shown in FIG. 7, the elastic member 80 is formed in a substantially cylindrical shape. The upper and lower sides of the elastic member 80 are formed with tight contact portions 81 which are in close contact with the close contact ring 72, The engagement portions between the rotor 71 and the elastic member 80, the sealing stopper 73 and the elastic member 80 are tightly sealed by the close contact ring 72 and the close contact portion 81.

The elastic member 80 of the present invention is vertically compressed by the upward and downward movement of the sealing stopper 73 and the elastic force is controlled. In order to exert a more smooth elastic force, the elastic member 80 of the elastic member 80a The shape may be changed.

At this time, a pair of inclined portions 82 having a conical shape that is vertically symmetrical is formed between the upper and lower tight contact portions 81, so that the elastic force in the vertical direction can be increased.

3, the mechanical seal for the Takju refrigerator according to the present invention is installed in the cover 42 as shown in FIG. 3, so that the takju, which is filled in the inside of the keg 40, is stirred by the rotation of the rotary shaft 44.

At this time, the elastic members 80 and 80a are sealed tightly by the contact ring 72 and the close contact part 81, and the inner side is completely sealed by the structure of the leaf spring having the shape of a cylinder or a cone, The debris not only blocks the ingress of the takju stem into the inside, but also facilitates the washing, which is more convenient.

In addition, since the elastic members 80 and 80a have a simple structure, they are more easily manufactured and the mechanical seal 100 can be easily assembled.

10: Body 11: Door
20: Cooling device 30: Takju drain pipe
31: valve handle 32: nozzle
40: Keg 41: Takju conveyor
42: Cover 43: Installation part
44: rotating shaft 45: impeller
50: stirrer 51: drive motor
70: stator 70a: fixed contact
71: Rotor 71a: Rotary contact
72: Adhesive ring 73: Sealed stopper
80, 80a: elastic member 81:
82: inclined portion 100: mechanical seal

Claims

1. A mechanical mechanical seal for a Takaji refrigerator comprising a stator, a rotor, and an elastic member, which is coupled to a rotating shaft of the stirring device and stirs the takju by rotation,
A fixed contact portion 70a is coupled to the stator 70 and a rotary contact portion 71a that rotates in surface contact with the fixed contact portion 70a is coupled to the rotor 71. The rotor 71 and the sealed stop The elastic members 80 and 80a are coupled between the fingers 73,
The sealing stopper 73 is formed with a female screw threadedly engaged with the male screw formed on the rotating shaft 44 so as to prevent contaminants from flowing into the inside of the sealed stopper 73, The rotation contact portion 71a and the fixed contact portion 70a are brought into close contact with each other by adjusting the elastic force,
The elastic members 80 and 80a are formed of leaf springs having a shielding function so as to facilitate washing and prevent the debris of the takju from flowing inwardly. In order to increase the elastic force in the vertical direction, And a pair of inclined portions (82) are formed in a vertically symmetrical manner.

The method according to claim 1,
A tight contact portion 81 is formed on the upper side and the lower side of the elastic members 80 and 80a and the tight contact portion 81 is fixed to the rotor 71 and the contact ring 72 ) Of the housing (10), respectively.

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