KR20090075966A - Impact roller for conveyer - Google Patents

Abstract

An impact roller for a conveyor is provided to prevent stuck foreign material because plural buffing support members absorbing impact is included. An impact roller for a conveyor comprises a shaft(12), a roller pipe(11) which is installed in the shaft by a bearing(13) and is permitted to rotate, and plural buffing support member(20) absorbing impact, wherein the roller pipe is inserted. The buffing support member comprises a cylindrical inner wheel(21) in which a through-hole is formed in the inside and the roller pipe is inserted, a cylindrical outer wheel(23) which forms an interval with the inner wheel, and a shock absorbing member(25) absorbing impact delivered through the outer wheel. The shock absorbing member comprises plural base units which are installed along the circumference of the inner and outer wheels, and a connection unit which connects the base unit axially distanced.

Description

Impact Roller for Conveyer

The present invention relates to an impact roller for a conveyor, and more particularly, substantially completely prevents foreign matter from being caught between the cushioning support members, can absorb a large amount of impact, as well as improve the durability and durability of the structure, and torsion. Deformation resistance to load is improved, and particularly relates to a impact roller for a conveyor that can improve the reliability of the logistics conveyance by improving the buffering effect on the conveyed material than before.

Figure 7 is a perspective view of the impact roller for a conveyor according to the prior art, Figure 8 is a partial cross-sectional view showing a mounting state to the impact roller of FIG.

As shown in FIGS. 7 and 8, the impact roller 1 for a conveyor according to the prior art mounts a plurality of disks 6 on the outer diameter of the roller pipe 2, but on both sides of the outer diameter of the roller pipe 2. At the end, the male screw 4 was formed to insert the disk 6, and then the nut 5 was fastened and fixed from the outside of the disk 6. Reference numeral 3 is an axis and 7 is a washer.

When the impact roller 1 is mounted on the conveyor, the impact roller 1 is inserted into the conveyor frame 8 to prevent separation and detachment of the disk 6 by fastening means such as the nut 5. Since the disk 6 is used as the shock absorbing member, the disk 6 is formed by forming a gap a between the disks 6 so as to act as the shock absorbing member as shown in FIGS. 7 and 8. do.

When the impact roller 1 is mounted on a conveyor, the impact roller 1 is installed in a portion where the conveyed object falls so as to absorb shocks, thereby preventing damage to the conveyed object and preventing damage to the roller 1. Used as Impact roller 1 according to the prior art as described above should be installed using a disk 6 as the shock absorbing member as shown in Figures 7 and 8 and spaced apart a certain distance (a) in the axial direction, and transport If the water is smaller than the gap (a), there was a problem that drops through the gap (a) or pinched in the gap (a), when the falling conveying object impacts the edge of the disc (6) There is a problem that damage is likely to occur and durability is lowered. And when the gap (a) is reduced, there was a problem that the shock absorbing effect can not sufficiently occur.

On the other hand, the Republic of Korea Patent Application No. 10-2003-0080426 and 10-2003-0080427 has been disclosed a conveyor impact roller (not shown) for solving the above problems.

However, the impact roller for the conveyor disclosed in the above literature also has a problem that it is not enough to completely block the foreign matter pinch, as well as a relatively weak buffering effect on the conveyed material, which is somewhat unreliable in logistics transport.

The present invention has been proposed to solve the problems of the prior art as described above, it is possible to substantially block completely the foreign matter trapped, as well as relatively robust in structure to improve the durability, in particular the buffering effect on the conveyed material It is an object of the present invention to provide an impact roller for a conveyor that can improve reliability in transporting logistics by improving from the related art.

The impact roller for a conveyor according to the present invention for achieving the above object is a shaft, a roller tube rotatably installed on the shaft by a bearing, and a plurality of buffer supports for inserting the roller tube to absorb shocks. Absence; The buffer supporting member may include a cylindrical inner ring into which the roller tube is inserted and a through hole formed therein, a cylindrical outer ring forming a radial gap therebetween, and a gap formed between the inner ring and the outer ring. A shock absorbing member positioned to absorb a shock transmitted through the outer ring; The shock absorbing member has a axial distance between the inner ring and the outer ring and is spaced along the circumferential direction of the inner ring and the outer ring, and a plurality of base parts are installed in a double row, and a connecting portion connecting the axially spaced base parts in the axial direction. Characterized in that consists of.

In the above description, a plurality of base portions provided in one axial direction of the inner ring and the outer ring along the circumferential direction, and a plurality of base portions provided in the circumferential direction apart from the base portion on one side in the axial direction Installed so as to have a phase difference from each other; The connection portion is characterized in that the base portion on the one side and the other side base portion is connected in a zigzag form.

The inner ring, outer ring and the shock absorbing member is characterized in that formed integrally,

The inner ring is characterized in that the cylindrical reinforcement member is further provided.

And a rotation preventing means for preventing an arbitrary rotation of the buffer support member relative to the roller tube, wherein the rotation preventing means includes a protrusion provided on one of an outer surface of the roller tube and an inner surface of the buffer support member. It is characterized in that it comprises a groove provided in one of the projection is fitted.

According to the impact roller for a conveyor of the present invention, it is possible to substantially completely block foreign matters from being trapped, and to be relatively robust in structure, to improve durability, to absorb larger impacts, as well as to resist deformation against torsional loads. It is improved, and in particular, the buffering effect on the conveyed object is improved than in the prior art, thereby increasing the reliability of the logistics conveyance.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

1 is a schematic cross-sectional view showing an impact roller for a conveyor according to an embodiment of the present invention, Figure 2 is a partially enlarged cross-sectional view of Figure 1, Figure 3 is a conveyor roller shown in Figures 1 and 2 Figure 4 is a schematic cross-sectional view showing a cushioning support member provided, Figure 4 is a partially perspective perspective view for explaining the buffer support member, Figure 5 is a front view of Figure 4, Figure 6 is an internal projection side view of FIG.

1 and 2, the conveyor impact roller according to the preferred embodiment of the present invention, the roller shaft unit 10 and the roller shaft unit 10 along the longitudinal direction of the roller shaft unit 10 to form a central axis It is configured to include one or more buffer support member 20 for buffering and supporting the conveying material inserted and coupled to the (10).

The roller shaft unit 10 includes a shaft 12 installed on a conveyor and a cylindrical roller tube 11 rotatably installed on the shaft 12 by a bearing 13. As shown in FIG. 2, an end cap 14 having an outer ring of the bearing 13 inserted into both sides of the roller tube 11 is inserted inward, and the roller tube 11 includes the ant cap 14. It can be configured to be inserted into the outside of the.

In FIG. 2, reference numeral 15 denotes an intermediate member, 16 a cover, 17 a stopper ring, and 18 a stiffener for improving the rigidity of the cover 16.

The roller tube 11 is a part that forms an outer appearance of the roller shaft unit 10. As shown, it may have a cylindrical or cylindrical shape. As will be described later, the inner ring 21 of the buffer support member 20 is inserted into the outer surface of the roller tube (11). The roller tube 11 may be made of a plastic material, or may be made of a metal material. If it is formed of a metal material it is preferably selected as a material having corrosion resistance.

The shaft 12 is disposed long in the roller tube body 11 along the longitudinal direction of the roller tube body 11 to form a rotation axis of the roller shaft unit 10. Therefore, it is preferable that the shaft 12 is disposed substantially in the center of the roller body 11. The shaft 12 is usually made of a metal material for maintaining the rigidity.

The bearing 13 is coupled to the outside of the shaft 12 to support the remaining peripheral configurations relative to the shaft 12 to allow relative rotation. Such a bearing 13 can be applied to other known rolling bearings, for example ball bearings, roller bearings and the like. On the other hand, the bearing 13 may be divided into an inner ring and an outer ring on the basis of its central region, the inner ring being inserted into the shaft 12 to contact the outer diameter surface of the shaft 12, and the outer ring of the end cap 14. It is inserted inward and is in contact with the inner diameter surface of the end cap 14. A stopper ring 17 is provided at the rear end of the bearing 13.

The end cap 14 is coupled to the inside of the roller tube 11 in a state where the end cap 14 is inserted into the end side of the shaft 12. At this time, it is also possible to be coupled to the outside of the roller tube (11). Like the shaft 12, the end cap 14 may be made of steel, which is metal, but may be made of plastic. And the end cap 14 may act to prevent foreign matter from entering the cover 16 together with the cover 16. In the present embodiment, the end cap 14 is provided with a metal material so that the end cap 14 is welded to the roller tube 11 when assembled at the corresponding position. The outer surface of the end cap 14 and the roller tube 11 is preferably processed to form one surface without generating a step difference.

The intermediate member 15 is provided between the end cap 14, the bearing 13, and the cover 16 to compensate for misalignments that may occur in the bearing 13, and together with the cover member 16. A labyrinth seal can be formed. The intermediate member 15 may be made of metal or plastic.

The cover 16 is inserted into the end cap 14 from the exposed end region of the end cap 14 and serves to prevent foreign matter from entering the region. Therefore, the cover 16 may be made of a metal material or may be made of a plastic material. If made of plastic material it will be preferable to further provide a reinforcing material 18 to maintain the rigidity as shown.

On the other hand, it will be described below the buffer supporting member 20 is coupled to one or more of the roller shaft unit 10 to absorb the impact. Since one or more buffer support members 20 all have the same or similar structure, all of the one or more buffer support members 20 are given the same reference numerals.

Each of the one or more buffer supporting members 20 is provided in a donut shape, all of which are installed while the roller tube 11 of the roller shaft unit 10 is inserted, and includes an end cap 14. In this case, some may be installed in the roller tube 11, some in the end cap (14).

As shown in FIGS. 2 to 6, the buffer supporting member 20 has a cylindrical inner ring 21 having a through hole 21 a formed therein so that the roller shaft unit 10 can pass therethrough, and an inner ring ( It is provided on the radially outer side of the inner ring 21 so as to form a gap in the radial direction between the 21 and, the outer ring 23 of the cylindrical shape that the outer surface is substantially in contact with the conveying object, the inner ring 21 and the outer ring ( 23) includes a plurality of shock absorbing members 25 provided in the interval between. Although the outer edge region of the outer ring 23 is illustrated as being chamfered, the chamfering process is not necessarily required.

The shock absorbing member 25 serves to elastically maintain the gap between the inner ring 21 and the outer ring 23 may be provided in a simple straight form. That is, the inner side is connected to the inner ring 21 and the outer side is connected to the outer ring 25 may be formed in a radially installed form. And when the object is strongly impacted to the buffer support member 20 and the outer ring 23 is crushed toward the inner ring 21 side to be easily restored to its original state when the elastic deformation is described below to improve the deformation resistance against torsional load It is also preferable to provide a shock absorbing member 25 in the form as described.

In the present embodiment, the plurality of shock absorbing members 25 provided in the shock absorbing support member 20 may be disposed at predetermined lengths from both ends of the shock absorbing support member 20 toward the opposite ends of the shock absorbing support member 20, as shown in FIGS. 4 and 6. It has a straight section (S) formed over, and an inclined split section (D) formed by branching obliquely in two branches from the point where the straight section (S) ends. At this time, the inclined minute section D is arranged in a zigzag manner along the circumferential direction of the inner ring 21 and the outer ring 23.

Referring to Figure 4 and 6 with reference to the structure of the shock absorbing member 25, the shock absorbing member 25 is the inner ring 21 and the outer ring 23 to one side between the inner ring 21 and the outer ring (23). A plurality of base portions 25a spaced apart along the circumferential direction of the plurality of base portions 25a, and spaced apart in the axial direction from the base portion 25a to the inner ring 21 and the outer ring 23 between the inner ring 21 and the outer ring 23. It comprises a plurality of base portions 25c spaced apart along the circumferential direction of and a plurality of connection portions 25b for connecting the base portions 25a, 25c in the axial direction. The base portions 25a and 25c are connected to the outer diameter surface of the inner ring 21 on the inner side and are connected to the inner diameter surface of the outer ring 23 on the outer side. The connecting portion 25b is connected to the base portions 25a and 25c spaced apart in the axial direction. The connection portion 25b may be connected to the outer diameter surface of the inner ring 21 to the inside, or may be connected to the outer diameter surface of the outer ring 23 to the outside.

  The connecting portion 25b may be configured to be connected to two neighboring base portions 25c on the other side from one base portion 25a on one side.

The plurality of base parts 25a and 25c are installed to have a phase difference in the circumferential direction as shown in FIGS. 4 and 6, and the connection part 25b is the base part 25a on the one side and the base part on the other side ( 25c) may be connected in a zigzag form.

As described above, when the shock absorbing member 25 has a structure having a straight section S and an inclined branch section D, the conveying material is strongly hit by the buffer supporting member 20 so that the outer ring 23 has an inner ring ( 21) Even if it is elastically deformed while crushed to the side, it can be easily restored to its original state by the shock absorbing member 25 later. Therefore, the buffering effect on the conveyed material is improved than in the prior art, thereby increasing the reliability in transporting the logistic. Due to the structure of the shock absorbing member 25, the structure is relatively solid, thereby improving durability.

As will be described repeatedly, the plurality of buffer support members 20 serve to buffer the conveyed material while absorbing the impact of the conveyed material. Therefore, the buffer support member 20 is preferably made of an elastic material having a predetermined elastic force. Such materials may include rubber, silicone, urethane, and the like.

In addition, the inner ring 21, the outer ring 23 and the shock absorbing member 25 may be separately manufactured and assembled together when the shock absorbing support member 20 is manufactured, but in this embodiment, an elastic material is used to improve productivity and reduce costs. The inner ring 21, the outer ring 23, and the shock absorbing member 25 are made integral with the material.

When the buffer support member 20 is made of an elastic material as described above, the effect of the buffer on the conveyed material can be increased, but the coupling strength of the buffer support member 20 to the roller shaft unit 10 may be somewhat lowered. have.

Thus, in order to prevent such a phenomenon, in the present embodiment, the reinforcing member 22 is further provided on the inner ring 21. Due to this reinforcing member 22 when the buffer support member 20 is coupled to the roller shaft unit 10, there is an advantage that the rigidity of the coupling region is increased. Of course, since the scope of the present invention is not limited thereto, the reinforcing member 22 may be provided in the outer ring 23 and the shock absorbing member 25 in addition to the inner ring 21.

When providing the reinforcing member 22 in the inner ring 21, the reinforcing member 22 is embedded in the inner ring 21 in the present embodiment. However, since this is only one embodiment, the reinforcing member 22 does not necessarily need to be embedded in the inner ring 21, but may be partially exposed to the inner surface of the inner ring 21.

On the other hand, as shown in Figure 1, when a plurality of the buffer support member 20 is fitted to the roller shaft unit 10, if the buffer support member 20 on the roller shaft unit 10 is optionally rotated buffer support member Foreign material may be caught between the (20). In order to prevent this, in the present embodiment, it is further provided with a rotation preventing means 30 for preventing any rotation of the buffer support member 20 relative to the roller shaft unit 10.

The rotation preventing means 30 includes a protrusion (not shown) provided on one of an outer surface of the roller shaft unit 10 and an inner surface of the buffer support member 20, and a groove portion 21b provided on the other to fit the protrusion. It includes.

In the present embodiment, as shown in Figs. 4 and 5, the groove portion 21b is provided on the inner surface of the buffer support member 20. At this time, the groove portion 21b is recessed radially outward from the inner surface of the inner ring 21, but is arranged at equal angle intervals along the inner circumferential direction of the inner ring 21. The groove 21b serves to prevent the arbitrary rotation of the shock absorbing support member 20 together with the protrusion, and facilitates the fitting operation of the shock absorbing support members 20 with respect to the roller shaft unit 10. 10) serves as a function of preventing foreign matter from penetrating between the buffer support members 20.

With this configuration, the groove portion 21b of the buffer support members 20 is fitted to the protrusion of the roller shaft unit 10 in a state where a plurality of buffer support members 20 shown in FIG. 4 are prepared. As shown, complete the assembly. After preparing a few impact rollers for the conveyor in the state as shown in Figure 1, it is mounted on the corresponding line of the conveyor assembly. Then proceed with logistics work.

If the transported material is transported during the operation of the logistics operation and falls to the impact roller for the conveyor of the present embodiment, the transported material strongly hits the buffer support member 20, wherein the outer ring 23 of the buffer support member 20 is the inner ring. The elastic deformation while being crushed toward the (21) side to prevent the damage of the conveyed material, and then the outer ring 23 is easily restored to its original state by the shock absorbing member 25 to proceed to the same post-work.

As described above, according to the present embodiment, not only the foreign matter can be substantially blocked, but also the structure is relatively solid and durability is improved. It can be increased.

As described above, the present invention is not limited to the described embodiments, and various modifications and changes can be made without departing from the spirit and scope of the present invention, which will be apparent to those skilled in the art. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

1 is a schematic cross-sectional view showing an impact roller for a conveyor according to an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view of a portion of one end in FIG. 1.

Figure 3 is an enlarged cross-sectional view showing a buffer supporting member provided in the impact roller for a conveyor of the present invention.

Figure 4 is a schematic perspective view showing a buffer support member provided in the impact roller for a conveyor of the present invention.

5 is a front view of the buffer supporting member shown in FIG. 4.

6 is an internal projection side view of FIG. 4 for explaining the shock absorbing member provided in the buffer support member.

7 is a perspective view of an impact roller for a conveyor according to the prior art.

8 is a partial cross-sectional view for explaining a mounting state of the impact roller of FIG. 7.

* Explanation of symbols for the main parts of the drawings

10: roller shaft unit 20: buffer support member

21: inner ring 21a: through hole

21b: groove 22: reinforcing member

23: outer ring 25: shock absorbing member

25a: base portion 25b: connection portion

Claims (6)

A plurality of shock absorbers supporting the shaft 12, the roller tube body 11 rotatably installed on the shaft 12 by the bearing 13, and the roller tube body 11 are inserted to absorb shocks. Member 20; The buffer supporting member 20 has a cylindrical inner ring 21 into which the roller tube 11 is inserted and has a through hole 21a formed therein, and a cylindrical shape forming a gap between the inner ring 21 and the inner ring 21. An outer ring 23 and a shock absorbing member 25 positioned at an interval formed between the inner ring 21 and the outer ring 23 to absorb the shock transmitted through the outer ring 23; The shock absorbing members 25 are spaced apart in the circumferential direction of the inner ring 21 and the outer ring 23 so as to have an interval in the axial direction between the inner ring 21 and the outer ring 23. An impact roller for a conveyor, comprising: a connecting portion 25b for connecting the base portions 25a, 25c spaced in the axial direction to the base portions 25a, 25c. According to claim 1, A plurality of base portions 25a spaced apart in the circumferential direction and installed on one side in the axial direction of the inner ring 21 and the outer ring 23, and axially spaced apart from the base portion 25a of the one side. The base parts 25c of the plurality of other sides spaced apart along the circumferential direction are installed to have phase differences with each other in the circumferential direction; The connecting portion (25b) is a conveyor impact roller, characterized in that connected to the base portion (25a) and the other side of the base portion (25c) in a zigzag form. The impact roller for conveyor according to claim 1, wherein the inner ring (21), the outer ring (23) and the shock absorbing member (25) are integrally formed. The impact roller for conveyor according to claim 1, wherein the inner ring (21) is further provided with a cylindrical reinforcing member (22). The impact roller for a conveyor according to claim 1, further comprising anti-rotation means for preventing an arbitrary rotation of the buffer support member (20) relative to the roller tube (11). The method of claim 5, wherein the anti-rotation means comprises a projection provided on any one of the outer surface of the roller tube body 11 and the inner surface of the buffer support member 20, and the groove provided in the other is fitted into the projection portion Impact roller for the conveyor, characterized in that.

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