KR102116960B1 - High-pressure rotational connecting device - Google Patents

Abstract

Disclosed is a high-pressure rotational connection device, which comprises: a guide shaft unit through which a through-hole passes in a longitudinal direction to allow a high-pressure medium to pass therethrough; a body unit for surrounding the guide shaft unit in an airtight state, and including a first body for supporting one end of the guide shaft unit, and a second body fastened to one end of the first body while supporting the other end of the guide shaft unit; a connector unit coupled to one end of the guide shaft unit passing through the first body to separately spray a high-pressure medium in a diagonal direction so as to allow a rotational propulsion force generating unit for generating the rotational propulsion force to be fastened thereto; and a vibration generation preventing unit positioned between an outer circumferential surface of the guide shaft unit and the inner circumferential surface of the body unit to prevent vibration of the guide shaft unit from being generated. According to the present invention, the high-pressure rotational connection device is provided with first to third ball bearings at a front end, a middle end, and a rear end of the first body to reduce wear due to the rotational friction of the guide shaft unit, and particularly, is inserted into an end of the guide shaft unit through the third ball bearing to support an end of the second body, and thus, frictional force is reduced to improve the rotational force. In addition, costs can be reduced since the guide shaft unit can be efficient without using a high-cost material, and processing time and costs can be reduced by realizing the simplification of a processing process.

Description

High-pressure flow connection device {HIGH-PRESSURE ROTATIONAL CONNECTING DEVICE}

The present invention relates to a high-pressure rotating connection device, and more particularly, to a device used to be used for a high-pressure washing machine and the like to rotate and spray high-pressure liquid.

In general, a swivel joint (Swivel jonit) refers to a mechanical device for connecting pipes that mediates a connection so that two pipes through which various fluids such as oil, water, air, gas, and chemicals flow can rotate with each other.

These swivel joints are widely used in a wide range of fields, such as fluid supply and transmission of various machines, hose reel assembly, automatic car wash equipment and factory equipment machinery.

Here, the industrial field to which the swivel joint can be applied is first, a food manufacturer. Due to the nature of food manufacturing, business cannot be performed without HACCP certification, so it is essential to maintain and maintain hygiene conditions in manufacturing facilities.

However, during the food manufacturing process that is constantly moving with the conveyor belt, washing of the conveyor belt is the most important process in food manufacturing because it is a great risk factor that hinders the freshness of the product when part of the food penetrates the surface of the conveyor belt. This is usually done using a cleaning service company or using internal personnel to clean, and because there are fixed labor costs, reduced wages, and human errors, it is efficient for equipment and hygiene when the equipment is installed in manufacturing facilities. And has the advantage of being able to securely manage and reduce fixed costs in the long run.

Second, it is a quarantine and environmental industry. When additionally installing the injection nozzle at the same pressure, the rotational speed and the flow rate of the injection are reduced, but it can be used for the purpose of spraying the liquid in a wide range.

When an epidemic occurs, it can be used for this purpose to spray vehicles or livestock as a quarantine from the government and local governments to prevent the spread, and it is installed on the entrance and exit of cement factories or construction site entrance trucks that generate road pollution. It can be used for cleaning purposes to prevent the inside contaminants from leaking out.

Meanwhile, in recent years, development of a swivel joint applied to a marine crane such as a lifeboat fixed crane of a passenger ship and a net crane of a fishing vessel is required. Here, unlike the swivel joint for land, the marine swivel joint requires development of a technology capable of preventing leakage and corrosion due to salt, as well as a technology that withstands oil leakage and hydraulic pressure.

Here, in the swivel joint, a flow path through which gas, fluid, etc. can move is formed inside the housing, so that a sealing device or the like is used to prevent gas, fluid, etc. from leaking to the outside, and to prevent damage due to high pressure fluid.

In addition, pipes are respectively connected and fixed to the inlet end and the outlet end formed in the swivel joint, and the fluid introduced through the inlet end side pipe flows through the flow path inside the swivel joint to the outlet end pipe.

A technology related to such a swivel joint has been proposed in Korean Patent Publication No. 2019-0114387.

However, Patent Document 1 has a problem in that the stem portion is fixed to the housing portion by the needle bearing portion, and the support portion of the stem portion is small, thereby vulnerable to vibration.

Korean Open Patent No. 2019-0114387 (2019.10.10)

The present invention has been devised in view of the above points, and the problem of the present invention is to provide a high-pressure rotating connection device that prevents shaking and abrasion of a guide shaft part that is independently rotated through a plurality of vibration generating prevention parts. It has a purpose.

High-pressure rotating connection device according to the present invention for achieving the above object, the guide shaft portion through-hole is formed in the longitudinal direction to pass through the high-pressure medium; A body portion composed of a first body surrounding the guide shaft portion in an airtight state and supporting one end of the guide shaft portion, and a second body supporting the other end of the guide shaft portion and being fastened to an end portion of the first body ; A connector unit coupled to one end of the guide shaft portion penetrating the first body and provided with a rotational propulsion force generating portion for generating rotational propulsion force by spraying a high-pressure medium in a diagonal direction, respectively; And it is located between the outer circumferential surface of the guide shaft portion and the inner circumferential surface of the body portion, the vibration generating prevention portion provided to prevent vibration of the guide shaft portion; may include.

The vibration preventing portion is composed of a first ball bearing, a second ball bearing and a third ball bearing provided at the front end, the middle end, and the rear end of the first body, and the third ball bearing is provided at the end of the guide shaft portion. As it is inserted, it can be supported at the end of the second body.

A tool insertion groove may be radially formed at one end of the guide hole of the guide shaft.

It is coupled to the interior of the second body, and may further include a cover portion so that the combined tip is located inside the through hole of the guide shaft portion.
In addition, the present invention, the guide shaft portion through-hole is formed in the longitudinal direction to pass through the high-pressure medium; A body portion composed of a first body surrounding the guide shaft portion in an airtight state and supporting one end of the guide shaft portion, and a second body supporting the other end of the guide shaft portion and being fastened to an end portion of the first body ; It is coupled to one end of the guide shaft portion penetrating the first body to generate a rotational propulsion force by spraying a high-pressure medium in a diagonal direction, respectively. Connector part; A vibration generation preventing portion located between the outer circumferential surface of the guide shaft portion and the inner circumferential surface of the body portion and provided to prevent vibration of the guide shaft portion; And a cover portion coupled to the interior of the second body, the insertion shaft of the tip being rotatably disposed inside the through hole of the guide shaft portion, and having an inclined surface formed at the rear surface to guide the moving direction of the high-pressure medium to the through hole. Including, wherein the vibration generation unit, consists of a first ball bearing, a second ball bearing and a third ball bearing provided on the inner end, middle end, and rear end of the first body, the third ball bearing is The outer circumferential surface of the other end may be supported by the first coupling hole formed on one inner circumferential surface of the second body while being inserted into the end of the guide shaft portion extending to the inside of the second body.

According to the present invention, a first ball bearing, a second ball bearing, and a third ball bearing are provided at the front end, the middle end, and the rear end of the first body to reduce wear due to rotational friction of the guide shaft, and in particular, the third ball. As it is inserted into the end portion of the guide shaft portion through the bearing and is supported at the end portion of the second body, there is an effect of improving the rotational force by reducing the frictional force.

In addition, the present invention can be cost-saving because it is possible to achieve efficiency without using the guide shaft portion as a high-cost material, and there is an effect of realizing simplification of the machining process to reduce machining time and cost.

1 is a perspective view showing a high-pressure rotating connection device of the present invention.
Figure 2 is an exploded cross-sectional view of the high-pressure rotating connection device according to the present invention.
3 is a plan view showing a high-pressure rotating connection device of the present invention.
Figure 4 is a side view showing a high-pressure rotating connection device of the present invention.
5 is a left and right side view showing a high-pressure rotating connection device of the present invention.
6 is a use state diagram showing a state in which the nozzle is connected to the high-pressure rotating connection device of the present invention.

The above objects, features and other advantages of the present invention will become more apparent by describing the preferred embodiments of the present invention in detail with reference to the accompanying drawings. Hereinafter, a high-pressure rotating connection device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a high-pressure rotating connecting device of the present invention, FIG. 2 is an exploded cross-sectional view of a high-pressure rotating connecting device according to the present invention, and FIG. 3 is a plan view showing the high-pressure rotating connecting device of the present invention. , FIG. 4 is a side view showing the high-pressure rotating connection device of the present invention, FIG. 5 is a left and right side view showing the high-pressure rotating connection device of the present invention, and FIG. 6 is a nozzle part of the high-pressure rotating connection device of the present invention It is a use state diagram showing a connected state.

1 to 6, the high-pressure rotating connection device 100 according to the present invention is a guide shaft portion 110, the body portion 120, the connector portion 130, the airtight portion 140 and vibration generation prevention It includes a part 150, and when a high pressure liquid is injected into the inlet, it withstands a maximum pressure of 275 bar due to its structurally optimized internal structure, and rotates the guide shaft part 110 attached to the bottom at a speed of 2,000 rpm. A high-pressure liquid and a high-speed rotational force form a hollow pattern, and all foreign substances passing through this range are cleaned.

The guide shaft portion 110 is formed to have a step on the outer circumferential surface as shown in Figure 2, the through-hole 112 is formed through the longitudinal direction so that the high-pressure medium passes through, the through hole through which the connector 130 is coupled ( A tool insertion groove 114 is radially formed at one end of 112, and a first thread 116 is formed at one end outer circumferential surface where the tool insertion groove 114 is formed, and on the outer circumferential surface opposite to the connector 130 The flange-shaped enlarged projection 118 is formed. Here, the high pressure medium may be applied, for example, high pressure water.

In addition, the through hole 112 is formed to have the same diameter of the inlet and outlet.

At this time, the tool insertion groove 114 is a groove into which a tool such as a hexagon wrench is inserted, and a semi-circular groove is radially formed every 60 ° along the inner circumferential surface of the circular through-hole 112 to connect the connector to the guide shaft 110 When the part 130 is fastened or separated, the corners of the hexagon wrench are respectively positioned in the grooves to transmit rotational force to the guide shaft part 110.

6, the first ball bearing 152, the thrust bearing (158), and the second ball bearing 154 are disposed on the right side based on FIG. 6, and the third ball bearing ( 156) is disposed, the left side supports the first ball bearing 152, the thrust bearing 158 and the second ball bearing 154, and the right side supports the third ball bearing 156.

On the other hand, since the guide shaft portion 110 can use an ordinary metal material, and thus can achieve efficiency without using a high-cost material, cost can be reduced and processing time and cost can be reduced by realizing simplification of a processing process.

The body 120 wraps the guide shaft 110 in an airtight state, as shown in FIGS. 1 to 5, and supports a first end of the guide shaft 110 to which the connector 130 is coupled. The body 1210 and the second shaft 1220 are configured to be fastened to the ends of the first body 1210 while supporting the other end of the guide shaft 110.

The first body 1210 is formed to have a step on the inner circumferential surface, a through hole 1212 is formed in the center of one end through which one end of the guide shaft 110 penetrates so as to be fastened with the connector 130, and the other end opened On the inner circumferential surface, a second thread 1214 is formed so as to be helically engaged with the third thread 1226 of the second body 1220.

The second body 1220 is formed to have a step on the inner circumferential surface, the first coupling hole 1222 is formed so that the ends of the third ball bearings 156 are coupled, and has a smaller inner diameter than the first coupling hole 1222. While, the through hole 1224 is extended to communicate with the first coupling hole 1222, and the third thread 1226 is formed on the outer circumferential surface of the first body 1210 having an inner diameter larger than the through hole 1224. The fourth thread 1228 is formed to spirally engage the fifth thread 1236 of the cover portion 1230 on the inner circumferential surface enlarged from the through hole 1224, and the high-pressure medium inlet hole 1229 communicates with the end. .

Moreover, the second body 1220 is formed such that its outer diameter is the same as the outer diameter of the first body 1210.

As the second body 1220 is screwed to the fourth thread 1228, the end portion is inserted into the through hole 112 of the guide shaft portion 110 to cover the cover portion 1230 so as to catch vibration of the guide shaft portion 110. Includes.

At this time, as shown in FIG. 2, the cover portion 1230 is coupled with one end of the insertion shaft 1232 at the end of the passage hole 112 of the guide shaft portion 110, and the other end has a fourth thread of the second body 1220. (144).

That is, the cover portion 1230 is formed at one end having a corresponding outer diameter to be inserted into the through hole 112 of the guide shaft portion 110, the insertion shaft 1232 is formed, the inclined surface 1234 on the back through which the hole is formed to the front This is formed, and the fifth thread 1236 is formed on the outer peripheral surface of the other end.

At this time, the inclined surface 1234 guides the moving direction of the high-pressure medium to the through hole 112. That is, since the inner diameter of the passage hole 112 is smaller than the inner diameter of the second body 1220 through which the high pressure medium flows, it is discharged to the through hole 112 while guiding the direction of the high pressure medium flowing into the second body 1220. As much as possible.

Moreover, although the cover portion 1230 is not shown in the drawing, it is fastened to the second body 1220 that is not rotated so that one end of the insertion shaft 1232 is rotatable inside the through hole 112 of the guide shaft portion 110. It is available.

To this end, a stepped jaw is formed on an outer circumferential surface of the end of the cover portion 1230, and the protrusions are coupled to the stepped by mutually coupling the insertion shaft 1322 formed at the ends in a vertically divided state so as to be coupled to the stepped.

As shown in FIGS. 1 to 5, the connector part 130 is formed of a cylinder having a small diameter of one of the outer circumferential surfaces and a seventh thread 136 formed thereon, and the other end having a larger diameter, which is a coupling side with the guide shaft 110, is It is formed in a hexagonal column shape so as to engage the tool, and a sixth thread 134 is formed on the inner circumferential surface of the second coupling hole 132 so as to be screwed with the first thread 116 of the guide shaft portion 110.

Moreover, as shown in FIG. 6, the seventh screw thread 136 is rotated so that the inclined nozzle is spirally coupled while being opposed to generate rotational driving force by the high-pressure medium supplied through the through hole 112 of the guide shaft 110. The thrust generating unit (N) is provided. At this time, the two nozzles are exemplified as being installed, but the number of variations is not limited thereto.

As shown in FIG. 2, the confidentiality keeping part 140 is divided into a first confidentiality keeping part 142, a second confidentiality keeping part 144, a third confidentiality keeping part 146, and a fourth confidentiality keeping part 148. It is composed.

That is, the hermetic holding portion 140 forms a groove in the through hole 1224 of the second body 1220, and the first hermetic holding portion 142, which is an O-ring, is installed in the groove to guide the shaft portion ( 110) to maintain airtightness with the end of the end, a groove is formed in the sidewall in the direction of the fourth spiral portion 1228 adjacent to the through hole 1224, and a second airtight holding portion 144 that is an O-ring is installed in the groove The airtightness of the cover portion 1230 is maintained.

The third hermetic holding portion 146 is a plate-shaped annular shim that is installed between the inner wall surface of the first body 1210 on the side of the through hole 1212 and the opposite outer wall surface of the first ball bearing 152 opposed thereto. (shim).

The fourth hermetic holding portion 148 is an O-ring installed at a boundary point at which the step of the connector portion 130 is changed, thereby maintaining airtightness with the connector portion 130 to be coupled.

As shown in FIG. 2, the vibration generation preventing part 150 functions to prevent vibration of the guide shaft part 110, and includes a first ball bearing 152, a second ball bearing 154, and a third ball bearing ( 156) and thrust bearings 158.

At this time, the vibration generating prevention unit 150 is the first ball bearing 152, thrust bearing 158, second ball bearing 154 and the other end from the one end of the guide shaft 110 to which the connector 130 is fastened The third ball bearings 156 are fixed in order.

Moreover, a pipe-shaped spacer 159 made of a material such as copper is inserted between the thrust bearing 158 and the second ball bearing 154.

On the other hand, the third ball bearing 156 is supported with a portion of the outer circumferential surface inserted into the first coupling hole 1222 of the second body 12120, thereby preventing vibration from occurring when the guide shaft 110 rotates. , It serves to increase the rotational force by reducing the frictional force. That is, the third ball bearing 156 prevents wear due to rotational friction when the guide shaft portion 110 rotates independently.

As described above, the operation process of the high-pressure rotating connection device 100 according to the present invention will be described with reference to FIG. 6 as follows.

First, a high pressure medium is introduced through the high pressure medium inlet hole 1229 formed in the second body 1220 of the body part 120.

Next, the high-pressure medium introduced through the inlet hole 1229 is guided along the inclined surface 1234 of the cover portion 1230 and moved to the through hole 112 of the guide shaft portion 110.

Next, the high-pressure medium moved to the through hole 112 of the guide shaft portion 110 is injected into the nozzle of the rotational propulsion force generating portion (N) installed at the end of the connector portion 130 while moving to the inside of the connector portion 130 do.

Next, the guide shaft portion 110 connected to the connector 130 is rotated while the rotational propulsion force generating unit N is rotated by the rotational propulsion force by the high-pressure medium injected in the inclined direction.

At this time, the third ball bearing 156 is supported with the outer circumferential surface inserted into the first coupling hole 1222 of the second body 12120 fastened to the first body 1210, so that the rotation of the guide shaft portion 110 When vibration is prevented, friction is reduced to improve rotational force.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art to which the present invention pertains may be implemented in other specific forms without changing the technical spirit or essential features of the present invention. You will understand. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

100: high-pressure rotating connection device 110: guide shaft
112: passing hole 120: body portion
1210: first body 1220: second body
1230: cover 130: connector
140: confidentiality unit 150: vibration generation prevention unit
N: rotational propulsion generating unit

Claims (4)

A guide shaft portion through which a through hole is formed in a longitudinal direction to pass the high-pressure medium;
A body portion composed of a first body surrounding the guide shaft portion in an airtight state and supporting one end of the guide shaft portion, and a second body supporting the other end of the guide shaft portion and being fastened to an end portion of the first body ;
It is coupled to one end of the guide shaft portion penetrating the first body to generate a rotational propulsion force by spraying a high-pressure medium in a diagonal direction, respectively. Connector part;
A vibration generation preventing portion located between the outer circumferential surface of the guide shaft portion and the inner circumferential surface of the body portion and provided to prevent vibration of the guide shaft portion; And
It is coupled to the interior of the second body, the insertion shaft of the tip is positioned to be rotatable inside the through hole of the guide shaft portion, the inclined surface is formed on the back surface to guide the moving direction of the high-pressure medium to the through hole; Includes,
The vibration preventing portion is composed of a first ball bearing, a second ball bearing and a third ball bearing provided on the inner front end, the middle end, and the rear end of the first body, and the third ball bearing is the High-pressure rotating connection device, characterized in that the outer circumferential surface of the other end is supported by the first coupling hole formed on one inner circumferential surface of the second body while being inserted into the end of the guide shaft portion extending to the inside.
delete According to claim 1,
High-pressure rotating connection device, characterized in that the tool insertion groove is formed radially at one end of the inside of the through hole of the guide shaft portion. delete

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