KR20170000521U

KR20170000521U - Ring blower having front colling fan

Info

Publication number: KR20170000521U
Application number: KR2020150005103U
Authority: KR
Inventors: 차진호
Original assignee: 차진호
Priority date: 2015-07-29
Filing date: 2015-07-29
Publication date: 2017-02-08

Abstract

The present invention relates to a ring blower provided with a front cooling fan. By installing a cooling fan on the front face of the ring blower, the fan is operated to improve the ring blower cooling efficiency, thereby preventing the ring blower motor from overheating .

Description

[0001] The present invention relates to a ring blower having a front cooling fan,

The present invention relates to a ring blower provided with a front cooling fan. In particular, a cooling fan is mounted on a front surface of a ring blower to operate the fan, thereby improving the cooling efficiency of the ring blower, thereby preventing the ring blower motor from overheating. The present invention relates to an installed ring blower.

The ring blower is a mechanical device widely used in industrial fields and machinery requiring high pressure air. The blower presses the gas by the rotational motion of a wing car or a rotor to discharge the pressure ratio within a predetermined range As a blower with pressure, the blower applies pressure to the gas and sends it to the duct and tube.

In addition, ring blower is designed and manufactured in various size and structure according to the application and performance to be used. It is a fluid machine capable of producing a large head at small flow rate. It is classified according to the number of impellers and the shape of the impeller channel. It is divided into a single type and a double type which compresses and discharges the compressed fluid in one stage again.

If the blower is to be used for a long time, the motor will overheat and cause trouble. One of the causes of overheating of the blower motor is the generation of frictional heat of the bearing supporting the rotary shaft. Therefore, it is important to prevent the motor from overheating by cooling the bearing.

Korean Patent No. 10-1301374 discloses a blower capable of smoothly supplying and circulating a fluid at a cryogenic temperature as well as a high temperature to drive the motor under severe driving conditions. Japanese Laid-Open Patent Application No. 10-2012-0004395 Discloses a scroll fluid machine capable of high-speed operation because it does not swing and does not rotate.

However, in these prior arts, since the fan for preventing overheating of the motor is of the rear mounting type, the efficiency thereof is lowered, and efficient cooling of the motor is difficult.

Korean Patent Registration No. 10-1301374 (Feb. Korean Patent Laid-Open No. 10-2012-0004395 (Jan. 12, 2012)

The object of the present invention is to provide a ring blower having a front cooling fan mounted on the front surface of a ring blower to prevent overheating of the ring blower motor by mounting a fan for improving cooling efficiency .

Another object of the present invention is to provide a ring blower equipped with a rear-mounted fan of a ring blower motor and a front cooling fan capable of more effectively preventing overheating of the motor by cooling the motor.

According to an aspect of the present invention, there is provided a ring blower provided with a front cooling fan, comprising: a frame constituting a main body of a ring blower; A front cooling fan disposed in front of the ring blower; A cooling fan cover surrounding the front cooling fan and protecting the cooling fan; A rotating shaft coupled to a center of the front cooling fan to drive the front cooling fan; A front casing forming a front case of the ring blower; A rear casing coupled to the front casing; An impeller accommodated in a space defined by the front casing and the rear casing; A bearing housing coupled to the outside of the rear casing and extending along the rotation shaft, the bearing housing receiving at least one bearing rotatably supporting the rotation shaft; And a motor installed outside the bearing housing to rotate the rotation shaft.

In another embodiment of the present invention, the front cooling fan is screwed to the rotation shaft.

In another embodiment of the present invention, the bearing housing receives a bearing that is coupled to support a rotating shaft.

According to the present invention, since a fan for improving the cooling efficiency is installed on the front surface of a ring blower widely used in industrial fields and machines requiring high-pressure air, the cooling efficiency can be improved and the ring blower motor can be prevented from being overheated There is an effect.

1 is a perspective view of a ring blower provided with a front cooling fan according to an embodiment of the present invention,
2 is a side cross-sectional view of a blower provided with a front cooling fan according to one embodiment of the present invention.
3 is a side view and a front view of a ring blower equipped with a front cooling fan according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It will be apparent, however, to one skilled in the art that the embodiments of the present invention may be embodied in many different forms and that the scope of the present invention is not limited to the embodiments described below. The shape and size of the elements in the drawings may be exaggerated for clarity and the same or similar reference numerals are given to the same or similar parts throughout the drawings.

FIG. 1 is a perspective view of a ring blower provided with a front cooling fan according to an embodiment of the present invention, and FIG. 2 is a side sectional view of a blower provided with a front cooling fan according to an embodiment of the present invention.

In the explanation of the drawings of the present invention, parts not directly related to the gist of the present invention are not described so as not to overshadow the gist of the present invention.

Referring to FIGS. 1 and 2, a ring blower 1000 with a front cooling fan according to the first embodiment of the present invention includes a frame 200 constituting a main body, a front cooling fan 180 A cooling fan cover 190 surrounding the front cooling fan 180 to protect the cooling fan 180 and a front cooling fan 180 coupled to the center of the front cooling fan 180 to drive the front cooling fan 180. [ A front casing 110, a rear casing 120, an impeller 130, a bearing housing 150, a motor 160, and the like.

Although not shown in the figure, a flow path groove having a semicircular sectional shape along the circumferential direction may be formed in the front casing 110. The front casing 110 is a cover that forms a space for accommodating the impeller 130 together with the rear casing 120. As described above, a flow path groove through which air flows can be formed on the inner surface of the front casing 110, and a space for accommodating the impeller 130 is formed.

Another channel groove (not shown) corresponding to the channel groove of the front casing 110 is formed along the circumferential direction in the rear casing 120. The rear casing 120 is connected to the front casing 110 and means such as a screw And the passage groove forms a semicircular air passage having an opposite cross sectional shape of the same size at a position corresponding to the other passage groove. A space for receiving the flow path groove and the impeller 130 is formed on the inner surface of the rear casing 120.

The impeller 130 is a rotating body which is accommodated in a space defined by the front casing 110 and the rear casing 120 and mixes the liquid. For example, the impeller 130 may be an open channel type or a side channel type (Side channel type). The number of the impellers 130 to be used is not limited to two as shown in the drawing, but differs depending on the setting of the user.

When the impeller 130 is of the side channel type, the impeller 130 may be formed of a circular inner body connected to the rotary shaft 260 and a circular outer body provided in the outer periphery of the inner body. The outer body may have flow grooves (not shown) corresponding to the flow grooves of the front casing 110 and the other flow grooves of the rear casing, respectively. The flow grooves are formed on opposite sides of the impeller 130 at positions corresponding to the flow grooves in the circumferential direction and having the same size as that of the flow grooves, Another circular flow groove having the same size as that of the other flow channel grooves and having an opposite cross sectional shape along the circumferential direction can be formed.

In addition, a plurality of vanes are provided in the flow grooves of the impeller 130 at regular intervals. In this case, when the impeller 130 rotates at a high speed, the impeller 130 is rotated through the air channel formed by the flow groove, the flow groove, the other flow groove, And the sucked air is discharged to the outside. In this case, the air flow generated in each of the flow grooves, the flow grooves, and the other flow grooves and the other flow grooves forms a spiral in the opposite direction.

The rotation shaft 260 is axially coupled to the impeller 130 and the motor 160. When the electric signal is applied to the motor 160, the impeller 130 is rotated. In this case, a first bearing 140 is coupled to one end of the rotary shaft 260, and a second bearing 230 is coupled to the other end of the rotary shaft 260 to support the rotary shaft 260. A lock nut (250) is fastened to one end of the rotary shaft (260) to prevent the impeller (130) from coming off during high speed rotation. In the drawing, reference numeral 240 denotes a hub.

The bearing housing 150 receives a first bearing 140 that is coupled to support a rotating shaft 260. The front cooling fan 180 and the rear cooling fan 210 of the ring blower of the present invention are screwed to the front and rear surfaces of the ring blower with the rotation shaft 260 to improve the cooling efficiency of the ring blower motor.

3 is a side view and a front view of a ring blower equipped with a front cooling fan according to an embodiment of the present invention.

In the drawing, reference numeral 270 denotes a suction port for sucking outside air, and reference numeral 170 denotes a discharge port for discharging internal air. Other configurations are not described because they have been described above with reference to FIGS. 1 and 2. FIG.

According to the present invention as described above, the cooling efficiency can be improved by installing a fan for improving the cooling efficiency on the front surface of the ring blower widely used in industrial fields and machines requiring high-pressure air, An effect of preventing overheating can be obtained.

Although the ring blower with the front cooling fan of the present invention has been described with reference to the drawings, this is for illustrative purposes only and is not intended to limit the scope of the present invention, and the scope of the present invention is not limited to the following claims And all changes or modifications that come within the meaning and range of equivalency of the appended claims and their equivalents shall be construed as being included within the scope of the appended claims.

110: front casing 120: rear casing
130: impeller 140: first bearing
150: bearing housing 160: motor
170: Discharge port 180: Front cooling fan
190: fan cover 200: frame
210: Rear cooling fan 220: Fan cover
230: second bearing 240: hub
250: lock nut 260: rotating shaft
270: Suction port

Claims

A frame constituting the main body of the ring blower;
A front cooling fan disposed in front of the ring blower;
A cooling fan cover surrounding the front cooling fan and protecting the cooling fan;
A rotating shaft coupled to a center of the front cooling fan to drive the front cooling fan;
A front casing forming a front case of the ring blower;
A rear casing coupled to the front casing;
An impeller accommodated in a space defined by the front casing and the rear casing;
A bearing housing coupled to the outside of the rear casing and extending along the rotation shaft, the bearing housing receiving at least one bearing rotatably supporting the rotation shaft; And
And a motor installed on the outer side of the bearing housing to rotate the rotary shaft.

The method according to claim 1,
Wherein the front cooling fan is screwed with the rotation shaft.

The method according to claim 1,
Wherein the bearing housing accommodates a bearing coupled to support a rotary shaft.