KR200301074Y1 - Rotary ring of crane - Google Patents

Abstract

The present invention relates to a rotary ring provided between the upper body and the lower body of the crane, more specifically, to smoothly inject lubricating oil into each bearing member, and to secure a sufficient lubricating oil storage space and improve the sealing capacity It is possible to extend the service life of components with frequent metal friction, to ensure stable operation of the equipment, and to a semi-permanent use of the rotary ring of the crane.

According to the present invention, a pair of through holes 12 are formed in the lower end of one side facing the paper feeding port 135, and the cutouts 14 are disposed at the upper left corners of the left and right sides so that both upper ends of the received rollers 10a are exposed. Each bearing member is provided with a retainer 10b having the inclined portions 16 formed at the lower left and right sides thereof, respectively, and the bearing members are annularly plurally provided between the inner and outer ring races 131 and 132. 10) and an extension part 22 positioned at a gap G on an upper surface of the packing body 21 having one end fixed to the lower surface of the outer ring race 131 and one end fixed to the inner ring race 132. It is integrally formed with a vertical, and provides a rotary ring of the crane comprising a packing member 20 formed with a V-shaped wing 23 at its end.

Description

Rotary ring of crane

The present invention relates to a rotary ring provided between the upper body and the lower body of the crane, more specifically, to smoothly inject lubricating oil into each bearing member, and to secure a sufficient lubricating oil storage space and improve the sealing capacity It is possible to extend the service life of components with frequent metal friction, to ensure stable operation of the equipment, and to a semi-permanent use of the rotary ring of the crane.

In general, the crane facility 100 for loading and unloading the product, as shown in Figure 1, the upper body 110 is rotated 360 °, the lower body 120 is installed on the bottom and the upper, lower body ( Consists of a rotating ring 130 consisting of inner, outer ring races 131, 132 connecting between 110, 120, the crane driver is the upper ring 110 to the rotary ring 130 to the rotating shaft Rotate freely to load or unload the product to the desired place.

As shown in Figure 2, the conventional rotary ring 130 is the upper, lower body 110, 120 and the inner, outer ring race 131 is configured as a bolt 131a, 132a, respectively, 132, in the upper and lower installation space therebetween, the first and second packings to swivel the plurality of bearing members 133 in the circumferential direction to enable a smooth rotation operation, and to prevent the external leakage of the injected grease The members 136 and 137 are provided, respectively.

Reference numeral 134 is an intermediate bearing member.

And, Figure 3 shows the bearing member 133 mounted to the rotary ring 130, which is formed of a roller (133) of the metal material and the incision portion 133c on the upper surface The roller 133a is formed by a retainer 133b which is accommodated in the inner space so as to partially open the lower surface to be partially exposed through the cutout 133c.

On the other hand, the rotary ring 130, the fatigue load is overlapped by the basic load of the upper body 110, which is a heavy material and the weight of the product for loading or unloading the product, and as a result the damage and wear of the components are accelerated, the In order to reduce the metal friction resistance between the roller 133a of the bearing member 133 made of a metal material and the inner and outer races 131 and 132 through a plurality of feed holes 135 provided in the rotary ring 130. Lubricate with grease.

However, the retainer 133b surrounding the roller 133a of the bearing member 133 surrounds most of the roller 133a, so that lubricant is not properly introduced between the retainer 133b and the roller 133a, and the lubricant is supplied. The closed one side of the paper feed port 135 and the retainer 133b face each other to block the introduction of the lubricating oil, and the gap G formed between the inner and outer races 131 and 132 of the difficultly supplied lubricating oil is not included. ) As it was leaked downward.

In this case, when the rotation operation of the upper body 110 is made in the state that the lubricant is not properly put between the roller 133a and the inner, outer ring race 131, 132, inner, outer ring race 131, ( 132) and the friction between the bearing member 133 is shortened, the service life is shortened, and the injected lubricant is leaked through the gap (G) to contaminate the surrounding environment, as well as causing the trouble of having to clean the waste oil from time to time It was.

In addition, although the second packing member 136 is installed at the lower side of the rotary ring 130 to prevent the outflow of lubricating oil, the second packing member 136 receives the internal oil film pressure generated when the upper body 110 is rotated. ) Is not sufficiently overcome and sags to the lower side, thus losing the sealing ability to store the lubricating oil in the gap G between the inner and outer races 131 and 132, thereby increasing the lower leakage of the lubricating oil, and increasing the viscosity of the lubricating oil. Even if it falls off, it will flow out, and the friction portion of the rotary ring 130 will be in a state where there is little lubricant.

If metal parts are damaged due to leakage or shortage of lubricating oil, the parts are damaged suddenly, the operation of the equipment is suddenly stopped, and the operation of the equipment is greatly interrupted due to the suspension of equipment for a long time. Due to the frequent replacement of the rotary ring 130 there was a problem of increasing the equipment maintenance cost.

Therefore, the present invention is to solve such a conventional problem, the purpose of which is to improve the storage capacity to achieve a sufficient lubrication action with the roller inside the retainer, to guide the injected lubricant to the top, and to improve the sealing capacity By reducing the friction between the metal to extend the service life, and provides a rotary ring of the crane that can be used semi-permanently.

1 is a schematic view showing a typical crane equipment,

Figure 2 is a longitudinal sectional view showing a rotating ring of the crane according to the prior art,

3 is a perspective view of a bearing member constituting a rotating ring of a crane according to the prior art,

4 is a perspective view of a bearing member constituting a rotary ring of a crane according to the present invention;

5 is a detailed view of the bearing member constituting the rotary ring of the crane according to the present invention,

Figure 6 is a partial detail view showing a rotary ring of the crane according to the present invention,

7 is a perspective view of a packing member constituting the rotary wheel of the crane according to the present invention,

Explanation of symbols on the main parts of the drawings

10 ..... Bearing member 10a .... Roller

10b .... retainer 12 ..... through hole

14 ..... Incision 16 ..... Inclined

20 ..... Packing member 21 ..... Packing body

22 .... Extension 23 ..... V-shaped wing

100 .... crane 110,120 ..... upper and lower body

131,132 ..... Inner and outer ring race 131a, 131b ..... Bolt

135 ..... Feed port 136 ..... 2nd packing member

The present invention as a technical configuration for achieving the above object,

In the rotary ring equipped with a plurality of feed holes for lubricating oil, and composed of the inner and outer races, the upper and lower body of the crane,

A pair of through-holes are formed in the lower end of one side facing the paper feed port, and cutouts are formed in the left and right upper edges so as to expose both upper ends of the received rollers, and inclined portions are formed in the lower left and right sides, respectively. A bearing member having a retainer and plurally speaking in an annular form between the inner and outer races;

The lower end of the outer ring race is in contact with the front end, the upper end of the packing body is fixed to the inner ring race is formed integrally vertically formed with an extension located in the gap, and the packing member formed a V-shaped wing at the end By providing a rotary ring of the crane characterized in that.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Figure 4 is a perspective view of a bearing member constituting the rotary ring of the crane according to the present invention, Figure 5 is a detailed view of the bearing member constituting the rotary ring of the crane according to the present invention, 6 is the rotation of the crane according to the present invention Partial detail view of the ring, Figure 7 is a perspective view of the packing member constituting the rotary wheel of the crane according to the present invention.

The rotary ring 1 of the crane according to the present invention, as shown in Figures 4 to 7, the inner and outer ring race 131 is assembled to the upper, lower body 110, 120 of the crane 100, respectively, , 132, and a plurality of bearing members (10) in contact with each other in the circumferential direction in the ring-shaped upper and lower installation spaces provided therebetween, and a packing member (20) to prevent the lower exposure of the lubricating oil . The inner and outer races 131 and 132 are the same as in the prior art, and thus detailed description thereof will be omitted.

4 and 5, the bearing member 10 is composed of a cylindrical roller (10a) and a retainer (10b) for receiving it therein to be rotatable, the lower side of one side of the retainer (10b) In the outer circumferential surface of the outer ring race 131 is formed a plurality of through-holes 12 to face the feed port 135, which is supplied with lubricating oil to guide the lubricating oil to the inside, punctures the left, right sides The cutouts 14 are formed at corners so that both sides of the roller 10a accommodated in the rotatable portion are exposed. Incidentally, inclined portions 16 having inclination angles of 25 to 35 degrees are formed at the lower left and right sides of the retainer 10b, respectively.

Here, the front surface of the retainer 10b is disposed in front of the ring type so as to be able to push the plurality of bearing members 10 in an annular form to the installation space formed between the inner and outer ring races 131 and 132 of the ring type. While it is formed of a convex curved portion to be in contact with the rear surface of the retainer (10b) of another bearing member 10 to be annular, while the rear surface is annular to the convex front surface of the other retainer (10b) disposed in the rear It is formed into a concave curved portion so as to be addressed. In FIG. 5, reference numeral 19 denotes a groove into which the rotating shaft of the roller 10a is fitted.

In addition, the packing member 20 is provided to prevent the outflow of the lubricating oil through the gap (G) between the inner, outer ring race 131, 132, as shown in Figure 7, the outer ring race 131 A packing body 21 having one end fixed to the inner ring race 132 so that the front end is in contact with the lower surface of the lower surface thereof has a gap G between the inner and outer ring races 131 and 132 on its upper surface. The extension part 22 is positioned to be vertically integrally provided, and an end portion of the extension part 22 is divided into both sides, and the V-shaped wing which is always in close contact with the inner and outer ring races 131 and 132 vertical surfaces. (33) is provided and configured.

Referring to the operation and effects of the rotary ring of the crane having the configuration as described above are as follows.

Rotating ring 1 of the present invention is provided between the upper body, the lower body 110, 120 of the crane 100, as shown in Figure 1, the driver of the upper body of the crane (100) When the 110 is rotated, the outer ring race 131 is rotated, and inside the retainer 10b in an annular installation space provided at the upper and lower ends of the inner ring race 132 connected to the lower body 120. Since the plurality of bearing members 10 accommodated in the rotatable roller 10a are in contact with each other and are annularly annular, the bearing members 10 rotate while supporting the upper body 110. At this time, the outer circumference of the outer ring race 131 so that wear due to metal friction does not occur between the rollers 10a of the bearing member 10 in contact with the inner and outer ring races 131 and 132 made of a metal material. Lubricating oil is injected through a plurality of paper feed holes 135 formed at the upper portion of the glass.

In this case, a through hole 12 is formed at one side of the retainer 10b facing the feeder 135, and cutouts 14 are formed at left and right edges of the retainer 10b, respectively. Since the lubricating oil supplied through the feed hole 135 is injected into the retainer 10b in which the roller 10a is accommodated through the through hole 12, the lubricant is cut to expose both sides of the roller 10a. Since it penetrates into the inside through the cut portion 14, the roller 10a and the inner and outer ring races 131, 132 to form a lubricant film to prevent metal friction to smoothly rotate the upper body 110 Enable operation. In addition, the lubricating oil pushed out while the rollers 10a of the respective bearing members 10 are rotated is transferred to both sides of the retainer 10b which is not subjected to pressure, and lubricated to another adjacent bearing member 10 while being transferred. To smooth the lubrication at the contact points.

In addition, the left and right side lower ends of the retainer 10b are formed with inclined portions 16, respectively, so as to rotate between the vertical surfaces of the inner and outer ring races 131 and 132 adjacent thereto. By forming a rectangular section of a rectangular cross section which can always store lubricant oil without resistance, the inclined portion 16 secures the lubricant storage space by the cutout portion 14 of the retainer 10b, and the lubricant storage capacity. It can be improved more.

On the other hand, the lubricating oil supplied through the feed port 135 by the oil film pressure generated during the rotation operation of the upper body 110 is discharged from the bearing member 10, as shown in Figure 7, the gap (G) It is flowing out, the end is fixed to the inner ring race 132, the extension portion 22 of the packing body 21 is in close contact with the lower end of the outer ring race 131 is disposed in the gap (G), Since the V-shaped blade 23 provided at the upper end is always in close contact with the vertical surfaces of the inner and outer races 131 and 132, the lubricating oil leaks from the gap G to prevent it from falling to the bottom surface. At the same time, the blocked lubricating oil is reversely flowed upward. At this time, the backflow lubricating oil is blocked by the second packing member 137.

In addition, even if the width of the gap (G) formed between this and the inner ring race 132 is widened or narrowed by the rotation of the outer ring race 131, the packing member 20 is made of a rubber material having elastic force Therefore, the V-shaped wings 23 of the extension portion 22 in contact with the vertical surfaces of the inner and outer ring races 131 and 132 are opened or closed to both sides in accordance with the width change of the gap G. You can keep it as it is. Accordingly, it is possible to always perform the sealing role to block the lubricating oil leakage regardless of the width change of the gap (G).

As described above, according to the present invention, the through hole 12 is drilled in the retainer 10b in which the roller 10a is accommodated, and the cutout portion 14 and the inclined portion 16 are respectively formed to form the roller 10a. Expensive rotation, since the lubricating oil is sufficiently supplied by exposing to the outside and securing the lubricating oil supply space, the lubricating oil storage space is sufficiently secured, and the lubricating ability at the contact metal friction region can be remarkably improved. The effect of prolonging the service life of the ring 1 and the components and preventing wear and damage is assured of stable equipment operation.

In addition, since the V-shaped wing 23 of the packing member 20 completely blocks the outflow of the lubricating oil through the gap G, the lubricating oil storage capacity is improved, thereby making the lubrication action smooth, and reducing the amount of waste oil generated. The effect which can prevent environmental pollution is obtained.

Claims (1)

In the rotary ring is provided with a plurality of feed holes (135) into which the lubricating oil is injected, and composed of the inner and outer ring races (131, 132) between the upper, lower body (110), 120 of the crane (100) , A pair of through-holes 12 are formed in the lower end of one side facing the feed port 135, and cutouts 14 are formed at the upper and left edges of the left and right sides so that both upper ends of the accommodated roller 10a are exposed. And a retainer 10b having inclined portions 16 formed at the lower left and right sides thereof, respectively, and having a plurality of annular annular bearings between the inner and outer races 131 and 132. Wow, An end portion of the outer ring race 131 is in contact with the tip of the outer ring race 132, one end is fixed to the upper surface of the packing body 21 is fixed to the integral part of the extension portion 22 located in the gap (G) integrally And a packing member (20) having a V-shaped wing (23) formed at an end thereof.