KR20160139257A

KR20160139257A - rotary joint

Info

Publication number: KR20160139257A
Application number: KR1020150073830A
Authority: KR
Inventors: 배성관
Original assignee: 배성관
Priority date: 2015-05-27
Filing date: 2015-05-27
Publication date: 2016-12-07
Also published as: KR101827845B1

Abstract

The present invention relates to a rotary joint, and more particularly, to a rotary joint which minimizes an assembling structure to prevent leakage of air, increases the hardness of a rotating portion and prevents a gap caused by abrasion even when used for a long time, To a rotary joint that can be used.
According to an aspect of the present invention, there is provided a rotary joint installed in a cooling system of a crude oil refining system, including: a body; a setting plate provided at a lower portion of the body and coupled to an upper portion of the cooling fan; And a sliding plate provided on a lower portion of the pin shaft protruding to a lower portion of the setting plate and connected to the upper portion of the body through a clearance space formed outside the pin shaft And controlling the upward and downward movement of the sliding plate by the supplied air to control the angle of the blade of the cooling fan.

Description

Rotary joint

The present invention relates to a rotary joint, and more particularly, to a rotary joint which minimizes an assembling structure to prevent leakage of air, enhances the hardness of a rotating portion and prevents a gap caused by abrasion even when used for a long time, To a rotary joint that can be used.

Generally, when refining crude oil in crude oil refining process, crude oil is put into a heating furnace and heated to evaporate. Since various components contained in crude oil have different boiling points, respective components can be separated.

That is, since LPG is in a gaseous state at room temperature, it can be easily separated, and boiling is carried out at 30-180 ° C for gasoline, 170-250 ° C for kerosene, 240-350 for light oil, and 350 ° C or higher for lube oil. .

As described above, the distillation tower separates the different components by the difference of the boiling point. In this separation process, since a large amount of bubbles are generated, the bubbles must be removed. In order to separate each component, It is very important to keep the temperature constant.

As shown in FIG. 1, the cooling system includes a control unit 20 provided on a rotating shaft of a rotating cooling fan (FAN) Air is injected to control the angle of the cooling fan blade 10 in the pipe to automatically adjust the amount of air supplied by the cooling fan and to remove air bubbles classified by type in the distillation tower The temperature is kept constant, and each component can be separated stably.

In order to control the angle of the cooling fan blade 10 provided in the cooling system described above, air supplied to the control unit 20 is supplied to the upper portion of the control unit 20 through a separate supply 40, And is supplied to the control unit 20 through the rotary joint 30 provided as much as possible.

However, since the conventional rotary joint is made up of a number of parts, the air supplied through the inner joint easily leaks out, which makes it difficult to stably adjust the rotary joint. Since the strength of the rotary part inside the rotary joint is low, And the like.

Korean Patent Publication No. 10-2002-0081500 Korean Patent Publication No. 10-2000-0052279

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems described above, and it is an object of the present invention to provide a bearing housing, a pin shaft penetrating vertically through a center of a body, a bearing housing at a lower portion of the body, And a cooling fan installed in a cooling system such as a cooling fan, a cooling fan, and a cooling fan installed in the cooling system. A sliding plate is provided at a lower portion of the pin shaft to move up and down by the air supplied through the center of the body, the bearing housing, and the setting plate to adjust the angle of the wing of the cooling fan. Thus, when refining crude oil in a crude oil refining apparatus, To provide a rotary joint which can be reliably separated into various components.

It is another object of the present invention to provide a rotary joint which is formed by only a body and a bearing housing so as to minimize a connection part to prevent leakage of air, And a rotary joint is provided on the upper portion of the friction member to prevent a gap between the rotary member and the friction member to prevent leakage of air by providing a spring for elastically supporting the friction member in the direction of the rotary member .

It is still another object of the present invention to provide a bearing structure for a bearing structure, in which the upper end of a rotating member provided in a bearing housing is formed of a cemented carbide containing 85% tungsten and 13% cobalt and the friction member is made of carbon, So that air can be prevented from leaking.

SUMMARY OF THE INVENTION [0006]

A rotary joint installed in a cooling system of a crude oil refining system, comprising: a body; a setting plate provided at a lower portion of the body and coupled to an upper portion of the cooling fan; a pin shaft passing through the body and the setting plate; And a sliding plate provided at a lower portion of the pin shaft protruding to a lower portion of the setting plate. The air supplied from a supply connected to the upper portion of the body through a clearance space formed outside the pin shaft, And controlling the angle of the blade of the cooling fan by controlling the movement of the cooling fan.

Here, the bearing housing is further provided at a lower portion of the body.

The rotating shaft is rotatably coupled to the setting plate through a second space formed in the bearing housing, and the pin shaft is vertically passed through the center of the rotating shaft.

At this time, a friction member is provided on the upper portion of the second space portion to contact the upper surface of the rotating member, and the pin shaft is vertically passed through the center portion of the friction member.

A first space portion is formed in the center of the body, an upper portion of the friction member is inserted into the lower portion of the first space portion, and a spring for elastically supporting the friction member downward is provided on the upper portion of the first space portion .

The friction member is made of carbon.

Here, the rotating member is characterized in that a portion in contact with the friction member is formed of a cemented carbide.

In the meantime, a bearing is provided between the second space part and the rotating member, and an air hole is formed in the upper part so as to penetrate to the outside.

In addition, a guide shaft is provided at an edge of the setting plate so as to protrude downward, and a guide groove into which the guide shaft is inserted is formed in the sliding plate.

According to the present invention having the above-described structure, a pin shaft passing through the center of the body is provided, a bearing housing is provided at a lower portion of the body, and a cooling fan provided in a cooling system of the crude oil refining apparatus is provided at a lower portion of the bearing housing. And a rotating plate rotatably coupled to the upper portion of the bearing housing, wherein a rotating member is provided inside the bearing housing, a lower portion of the rotating member is engaged with the setting plate, the pin shaft is vertically penetrated, A sliding plate is provided at a lower portion of the pin shaft to move up and down by air supplied through the center of the body, the bearing housing, and the setting plate to adjust the angle of the blade of the cooling fan, , And to maintain stable temperature and to stably separate various components. To provide a cylindrical joint.

It is still another object of the present invention to provide a bearing structure for a bearing structure, in which the upper end of a rotating member provided in a bearing housing is formed of a cemented carbide containing 85% tungsten and 13% cobalt and the friction member is made of carbon, It is possible to prevent the air from leaking.

1 is a conceptual diagram of a cooling system provided with a conventional rotary joint.
2 is a perspective view of a rotary joint according to the present invention.
3 is an exploded perspective view of a rotary joint according to the present invention.
4 is a cross-sectional view of a rotary joint according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The same reference numerals are used for the same constituent elements in the drawings and redundant explanations for the same constituent elements are omitted. It is to be understood that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

FIG. 2 is a perspective view of a rotary joint according to the present invention, FIG. 3 is an exploded perspective view of a rotary joint according to the present invention, and FIG. 4 is a sectional view of a rotary joint according to the present invention.

As shown in FIGS. 2 to 4, the rotary joint includes a body 100 and a setting plate 300 provided at a lower portion of the body 100, A pin shaft 400 passing through the body 100 and the setting plate 300 and a sliding plate 310 installed at a lower portion of the pin shaft 400 projecting downward from the setting plate 300 .

Here, the setting plate 300 is coupled with the upper part of the cooling fan of the cooling system to rotate as a cooling fan, and the sliding plate 310 is coupled to the body through a clearance space formed on the outer side of the pin shaft 400. [ By the air supplied to the upper portion of the main body 100.

That is, a lower end of the setting plate 300 is provided with a housing (not shown) having a space for the sliding plate 310 to move up and down, and is formed on the outer side of the pin shaft 400 The supplied air flows along the clearance space to press the sliding plate 310 downward to move the sliding plate 310 and the pin shaft 400 downward.

1, a spring for elastically supporting a control plate forming the control unit 20 is provided at an upper portion of the cooling fan. The control plate is connected to the lower end of the pin shaft 400, 400 are elastically supported at an upper portion thereof. Therefore, when no air is supplied to the inside of the housing, the control panel moves upward, and when air is supplied, the control panel moves downward according to the amount of air.

In addition, the control panel is provided with a link structure to be connected to the wing of the cooling fan, so that the angle of the wing is changed according to the upward / downward movement of the control panel, thereby controlling the air supply amount of the cooling fan rotating at the same speed. So that the degree of cooling can be adjusted.

A control pin 510 is provided at a lower portion of the supporter 500 so as to correspond to the upper end of the pin shaft 400, The amount of air supplied to the supply unit 500 is adjusted to adjust the angle of the cooling fan blades.

An upper portion of the pin shaft 400 is protruded in the receiving portion 130 and a supply plate 130 is formed on the upper portion of the pin shaft 400. [ 140 are fixed by using the spring pin 142.

At this time, a pin groove 132 is formed at both sides of the receiving part 130 to insert both side ends of the spring pin 142, thereby preventing the spring pin 400 from moving to below a certain level.

A second space 210 is formed on the inner side of the bearing housing 200 and a second space 210 is formed in the second space 210. The second space 210 is formed in the bearing housing 200, (220) is rotatably provided.

The lower part of the rotating member 220 is coupled with the setting plate 300 to rotate as the setting plate 300 and the pin shaft 400 is vertically passed through the center part of the rotating member 220. A space is formed on the outer side of the pin shaft 400 to allow air supplied through the supply 500 to move.

At this time, the second space 210 is provided with a bearing 216 so that the rotation member 220 can be stably rotated. On the upper part of the second space 210, The pin shaft 400 is vertically passed through the center of the friction member 120 and a clearance space is formed on the outer side of the pin shaft 400 so that the supply 500 The air supplied through the air supply passage is moved.

A locking protrusion 222 is formed at a lower portion of the rotating member 220 and a snap ring 218 is provided at a lower portion of the second space 210 to prevent the bearing 216 from being disengaged, The retaining jaw 222 of the rotation member 220 is hooked on the outer side of the through hole of the snap ring 218 to rotate the rotation member 220 Is also inserted into the second space 210.

A first space 110 is formed in the center of the body 100. An upper portion of the friction member 120 is inserted into a lower portion of the first space 110, A spring 122 for elastically supporting the friction member 120 downward is provided at an upper portion of the friction member 120 so that the friction member 120 and the rotary member 220 are brought into firm contact with each other, Thereby preventing air from leaking to the portion where the rotary member 220 contacts.

An elongated hole 202 is formed in the upper part of the bearing housing 200 so that the friction member 120 is inserted into the bearing housing 200. A cutout 128 is formed on both sides of the friction member 120 to correspond to the elongated hole 202, So that the friction member 120 does not rotate even if the rotation member 220 rotates.

The friction member 120 includes an O-ring plate 126 on the outer circumferential surface of the longitudinal center portion and an O-ring 124 having elasticity on the O-ring plate 126, Thereby preventing the air supplied to the friction member 120 from leaking into the gap formed between the friction member 120 and the friction member 120.

Meanwhile, since the friction member 120 does not rotate and the rotation member 220 rotates, the contact portions are frictioned with each other. Therefore, when the friction member 120 is used for a long period of time, Since the entire body 120 is formed of carbon and the upper end of the rotating member 220 is formed of a cemented carbide, the strength and hardness are increased, so that even when used for a long time, it is not easily worn and durability is improved.

At this time, the cemented carbide is formed to include 85% of tungsten and 13% of cobalt, so that abrasion due to friction can be stably prevented.

A grease hole 214 is formed in the upper portion of the second space 210 to communicate with the outside so that oil or grease can be supplied to the inside of the second space 210 so that the rotating member 220 can be stably .

An air hole 212 is formed at an upper portion of the second space 210 so as to communicate with the outside of the second space 210 to maintain a constant air pressure in the second space 210.

The rotating member 220 and the friction member 120 are positioned so as to be adjacent to the contacting portion of the rotating member 220 and the friction member 120. When the air is expanded due to the heat generated by the friction, Air expanded through the air hole 212 can be discharged to the outside and the pressure inside the second space 210 can be kept constant so that the rotation member 220 and the friction member 120 can be stably held in contact with each other so that the air supplied to the inside of the rotating member 220 and the friction member 120 can be prevented from leaking.

The setting plate 300 is coupled to a lower portion of the rotating member 220. The rotating member 220 penetrates the center portion of the setting plate 300 vertically, The first nut 226 and the second nut 228 press the upper surface of the setting plate 300 and the second nut 228 presses the lower surface of the setting plate 300 So that the rotary member 220 is firmly fixed to the setting plate 300.

A guide shaft 320 protrudes downward from an edge of the setting plate 300. The guide shaft 320 includes a plurality of guide shafts 320 and a sliding plate 330 disposed at a lower portion of the setting plate 300, The sliding plate 310 moves up and down along the guide shaft 320 so that the sliding plate 310 can be stably moved in the left and right direction It is possible to move up and down.

A bearing 314 is provided at the center of the sliding plate 310 and a bearing adapter 410 is mounted to the pin shaft 400 using a spring pin 412 so as to correspond to the bearing 314 .

Accordingly, the sliding plate 310 can be stably rotated together with the cooling fan and the setting plate 300.

While the present invention has been described in connection with certain exemplary embodiments, it is to be understood that the scope of the present invention is not limited to the disclosed embodiments, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100: body 110: first space part
120: friction member 122: spring
124: O-ring 126: O-ring plate
130: accommodating portion 132: pin groove
140: supply plate 142, 412: spring pin
200: Bearing housing 202: Slot
210: second space portion 212: air hole
214: Grease hole 218: Snap ring
220: rotating member 222:
226: first nut 228: second nut
300: setting plate 310: sliding plate
312: guide groove 320: guide bar
400: Pin shaft 410: Bearing adapter
500: Supply 510: Control pin

Claims

A rotary joint installed in a cooling system of a crude oil refining system,
The body,
A setting plate provided at a lower portion of the body and coupled to an upper portion of the cooling fan,
A pin shaft vertically passing through the body and the setting plate,
And a sliding plate provided at a lower portion of the pin shaft protruding to a lower portion of the setting plate,
Wherein the angle of the blade of the cooling fan is controlled by controlling the upward and downward movement of the sliding plate by the air supplied from a supply connected to the upper part of the body through a clearance space formed outside the pin shaft. .

The method according to claim 1,
And a bearing housing is further provided at a lower portion of the body.

3. The method of claim 2,
And a rotating member coupled to the setting plate is rotatably provided on the inner side of the bearing housing,
And the pin shaft is vertically passed through the center of the rotating member.

The method of claim 3,
A friction member is provided on an upper portion of the second space to contact the upper surface of the rotating member,
And the pin shaft is vertically passed through the center of the friction member.

5. The method of claim 4,
A first space is formed in the center of the body,
An upper portion of the friction member is inserted into the lower portion of the first space portion,
And a spring for elastically supporting the friction member downward is provided on the upper portion of the first space portion.

The method of claim 3,
Wherein the friction member is made of carbon.

The method according to claim 6,
Wherein the rotary member is formed of a cemented carbide portion in contact with the friction member.

5. The method of claim 4,
A bearing is provided between the second space and the rotating member,
And an air hole is formed in the upper part so as to penetrate the outer part.

The method according to claim 1,
A guide shaft is provided at an edge of the setting plate so as to protrude downward,
And a guide groove into which the guide shaft is inserted is formed in the sliding plate.