KR200199264Y1 - A cooling structure for bearing of vibration mill - Google Patents

Abstract

The present invention relates to a cooling structure of the bearing portion of the vibration mill (Vibration Mill), by forming a plurality of blades 112 in the radial direction along the radial direction on the inner surface of the weight (110) weight of the rotating shaft 100 As the weight 110 rotates, wind generated by the plurality of blades 112 formed inside the weight 110 is supplied to the rotating shaft support bearing 120 to cool the bearing 120, and Outside the cover 110 is covered with an outer cover 190 to filter and absorb the outside air containing a large amount of dust or foreign matter and to direct the wind direction toward the bearing, bearing housing 130 that accommodates the bearing 120 Both sides of the bearing cover 132 is removably installed to prevent dust and foreign matter from flowing into the bearing 120 during blowing by the blade 112 when the weight 110 rotates.

Description

Cooling structure of bearing part of vibration mill

The present invention relates to a cooling structure of the bearing part of the vibration mill, and in detail, the air flow generated by the blade formed on the inner surface of the weight is blown toward the bearing to allow the bearing part to be cooled by air.

In general, various types of vibration mills are used to grind the workpiece into fine particles, and the vibration mill related to the present invention is schematically illustrated in FIG. 1.

As shown, the conventional vibration mill has a ball drum 2 mounted to each corner of the plate 1, and the ball drum 2 is located in a direction diagonal to each other with respect to the rotation axis 3 while the rotation axis 3 It has the same arrangement interval with respect to the center point of the), the plate (1) is mounted in plurality in the longitudinal direction of the ball drum (2), the bracket (4) is integral to both side walls of the plate (1) The lower end of the spring (7) is in close contact with the spring (7) is seated on the upper surface of the supporting leg (6) provided on both ends of the frame (5), the rotary shaft (3) and the plate (1) The bearing 8 is coupled to the engaging portion of the bearing, and the outer circumferential surface of the bearing 8 is inserted into the bearing housing 9 integral with the plate 1.

In addition, the weight 10 is mounted at a predetermined position with respect to the longitudinal direction of the rotary shaft 3, the weight 10 is composed of two members to be coupled at different angles to the rotary shaft 3 It is to be able to vary the vibration width of the), the rotary shaft 3 is connected to the universal joint 15 by the drive motor 14 fixed on the frame (5) is to receive a rotational force.

On the other hand, in the above-described conventional vibration mill, the rotating shaft 3 was continuously vibrated in a direction perpendicular to the shaft by the unloading weight of the weight 10, and thus had to be rotated at high speed so that the rotating shaft 3 was applied to the bearing 8 supporting the same. Mechanical loads and frictional forces are abnormally large compared to bearings used in general power transmission systems.

As a result, the wear of the bearings, as well as the frictional heat increases, causing excessive consumption of the bearing lubricating grease or low-viscosity lubricant for cooling and lubrication thereof. If neglected, the bearing may be damaged, as well as a major obstacle to the normal operation of the vibration mill.

The present invention has been devised in view of the above-described conventional problems, and the present invention prevents sudden wear and breakage of a bearing for supporting a rotating shaft that is inevitably subjected to mechanically excessive load and friction in a vibration mill, or at least To mitigate this.

In order to achieve the above object, the present invention is a vibration mill mounted on the rotating shaft so as to be adjacent to a bearing for supporting the rotating shaft to vibrate the rotating shaft in a direction orthogonal to the rotating shaft, wherein the weight is a radius on its inner surface. Cooling the bearing part of the vibration mill to form a plurality of blades radially along the direction so that the air flow generated by the blade formed inside the weight as the weight is rotated during the rotation of the rotary shaft is blown toward the bearing support for the rotary shaft to cool the bearing Provide structure.

Preferably, the outside of the weight can be absorbed by filtering the outside air containing a large amount of dust or foreign matter, to concentrate the wind direction toward the bearing and to solve the various problems caused by the exposure of the weight Install.

The present invention also provides a bearing cover that can prevent the inflow of dust and foreign matter during the blowing in the outer side of the bearing housing housing the bearing.

1 is a side view schematically showing the structure of a general vibration mill,

Figure 2 is an exploded perspective view showing a bearing structure cooling structure of the vibration mill according to the present invention,

3 is a cross-sectional view showing a bearing part cooling structure of the vibration mill according to the present invention.

※ Explanation of code for main part of drawing

100: rotating shaft 110,110 ': weight

112: blade 120: bearing

130: bearing housing 132: bearing cover

134: vent 136: through hole

140: plate 150: bracket

160: spring 170: support leg

180: ball drum 190: outer cover

192: border 194: screen

196: through hole

Hereinafter, the bearing structure cooling structure according to a preferred embodiment of the present invention by the accompanying drawings will be described.

Figure 2 is an exploded perspective view showing a bearing cooling structure according to a preferred embodiment of the present invention, Figure 3 is a cross-sectional view of the coupling structure showing a cooling structure according to the present embodiment, the reference numeral 100 is a rotation axis, 110, 110 'is this rotation axis ( 100 is a weight coupled to the shaft, 120 is a bearing for supporting the rotating shaft 100, 130 is a bearing housing, 140 is a plate on which the bearing housing 130 is installed, 150 is attached to both sides of the plate 140 Bracket, 160 is a spring installed between the bracket 15 and the support leg 170, the reference numeral 180, 180 'is a ball drum containing the workpiece, such a structure has a structure similar to a typical vibration mill well Known.

Referring to a characteristic configuration of the present invention, a plurality of blades 112 are formed radially along the radial direction on the inner surface of the inner weight 110 of the pair of weight 110, 110 ' As the weight 110 rotates when the rotary shaft 100 rotates, the wind generated by the plurality of blades 112 formed inside the weight 110 is supplied to the bearing shaft 120 for supporting the shaft 120, thereby bearing 120. It is to allow the air to cool.

The outer cover 190 is covered on the outside of the weight (110, 110 ') to filter and absorb the outside air containing a large amount of dust or foreign matter, and the wind direction is concentrated toward the bearing, 110) (110 ') to solve various problems such as safety accidents due to exposure.

The outer cover 190 is attached to the engaging portion 142 formed on the plate 140 side of the vibration mill 192 of the annular edge portion 192 by fixing means such as bolts (not shown), the edge portion 192. The front surface of the front end is covered with a mesh-type screen 194 to prevent dust or foreign matter from entering the air, and the rotating shaft 100 may be penetrated at the center of the screen 194. Through holes 196 are formed.

The plurality of blades 112 formed on the inner surface of the weight 110 may be formed to protrude at right angles from the inner surface of the weight 112, as shown in the figure, preferably with respect to the vertical plane It can be formed to be inclined to some extent in the rear of the rotation direction to generate an efficient air volume and wind direction, the blades 112 may be formed separately and attached to the weight 110, respectively, a plurality of blades in one piece It can also be manufactured by integrally attaching to the existing inner weight of the weight by a method such as welding or bolt fixing.

In addition, the present invention, dust and foreign matter during the blowing by the blade 112 during the rotation of the weight 110 to the outside of the bearing housing 130 that accommodates the bearing 120 flows into the bearing 120 The bearing cover 132 is removably covered so as to be prevented.

The bearing cover 132 is formed in a cap shape, but perforated the ventilation holes 134 of a predetermined size over the entire surface on the horizontal plane passing through the center to allow the air to be blown to the bearing 120 inside the bearing cover ( 132 itself is coupled in close contact with the bearing housing 130, the temperature of which is increased by frictional heat when the vibration mill is driven, so that the cooling of the bearing housing 130 when the air blows to the entire surface thereof, The through hole 136 through which the rotating shaft 100 can penetrate is drilled in the same manner as the outer cover 190.

The present invention configured as described above has the outside air by the radial blade 112 formed on the inner surface of the weight 110 to generate vibration in the rotary shaft 100 while rotating together with the rotary shaft 100 when driving the vibration mill. Since the air is blown toward the bearing housing 130, the bearing 120 heated by frictional heat during driving is air-cooled, thereby preventing overheating of the bearing.

As described above, the present invention allows the air flow generated by the blades formed on the inner side of the weight to be blown toward the bearing to cool the bearing part. According to the present invention, insufficient cooling using conventional grease or lubricating oil is simply performed. This prevents the bearing from suddenly wearing out and improves the durability of the bearing.At the same time, the maintenance of the bearing part, which was a periodic and repetitive inspection part, prevented overheating of the grease grease filled in the bearing. Has a useful effect to be possible.

Claims (3)

In the vibration mill mounted on the rotary shaft so as to be adjacent to the bearing for supporting the rotary shaft to vibrate the rotary shaft in a direction orthogonal to the shaft during rotation, The weight 110 is formed on the inner surface of the plurality of blades 112 radially in the radial direction along the weight (110) during the rotation of the rotary shaft 100, the plurality formed in the weight 110 inside Cooling structure of the bearing part of the vibration mill, characterized in that the wind generated by the two blades (112) is supplied to the rotating shaft support bearing (120) to cool the bearing (120). According to claim 1, wherein the outer side of the weight 110 is a mesh screen 194 is covered on the front surface of the annular edge portion 192 and the rotating shaft 100 can be installed through the center of the screen 194 Cooling structure of the bearing of the vibrating mill, characterized in that the outer cover 190 is formed so that the through-hole 196 is removable. According to claim 1 or 2, wherein the outer side of the bearing housing 130 that accommodates the bearing 120 is formed in a cap shape and a plurality of vents 134 over the front surface on a horizontal surface passing through the center Cooling structure of the bearing part of the vibration mill, characterized in that the bearing cover 132, which is drilled and has a through hole 136 through which the rotating shaft 100 can penetrate, is installed to be disassembled.