KR200225817Y1 - Sealing structure of conveyor roller - Google Patents

Abstract

The present invention relates to a sealing structure of a conveyor roller, and improves the structure of the sealing member to prevent foreign substances from flowing into the bearing of the roller to be transported and transported to prevent the separation of the sealing member and the bearing It is an object of the present invention to provide a sealing structure of a conveyor roller to prevent foreign substances from entering.

Sealing structure of the conveyor roller of the present invention for achieving this purpose, the end of the pipe 60 is formed by a thin portion by a predetermined length is made of a bent portion (62) bent inwardly; The housing 56 interposed between the inside of the pipe 60 and the bearing 54 has a press-fit piece 56a whose outer surface has a shape corresponding to the shape of the bent portion of the pipe 60, and the press-fit piece ( 56a) and a support piece 56b having a bent piece 56c extending in a 'b' shape at one side thereof, the one side of which is in close contact with the outer diameter 54a of the bearing 54, and is formed with a predetermined gap therebetween. Integrally made; An inner diameter of the bearing 54 and one surface thereof are in close contact with each other, and the other surface is in close contact with the outer surface of the shaft 52, and a fitting piece fitted into the recessed portion 56d formed by the bent piece 56c of the housing 56 ( 58a) and an inner sealing member 58 formed integrally with the protruding piece 58b in close contact with the outer lower surface of the housing 56.

Description

Sealing structure of conveyor rollers {SEALING STRUCTURE OF CONVEYOR ROLLER}

The present invention relates to a sealing structure of a conveyor roller, and more particularly, to improve the structure of the sealing member to prevent foreign substances from entering the bearing of the roller to be transported and transported to prevent the separation of the sealing member In addition, the present invention relates to a sealing structure of a conveyor roller for preventing foreign matter from entering the bearing.

In general, the roller conveyor device is used to transfer the finished product or various items, or to sequentially transfer the product processed by each process to the corresponding process.

1 schematically shows a conventional roller conveyor apparatus 10, as shown, a plurality of rollers 20 rotatably installed on a shaft 22, the conveying material 18 is loaded thereon ), A belt 14 for transmitting rotational force to the roller 20, and a plurality of guide rollers 16 for guiding it.

In the conventional roller conveyor apparatus 10 having such a configuration, as shown in FIGS. 1 and 2, as the driving roller 12 is rotated by a driving source (not shown), the belt 14 is a transmission means. Is guided by the guide roller 16 to transmit the rotational force to the roller 20 is to rotate the roller 20 is to convey the conveyed material 18 loaded on the top.

3A to 3B are detailed views showing the internal structure by cutting one side of the roller, and as shown, a shaft 22 having both ends fixed to the support 29 and the shaft 22. The bearing 24 is provided on both sides of the, and the pipe 24 is provided with the bearing 24 and the housing 30 interposed therebetween, and is installed over the outer circumference of the shaft 22.

The housing 30 is installed between the shaft 22 and the pipe 40 to support the bearing 24. As shown, the housing 30 is disposed between the shaft 22 and the pipe 40. A predetermined gap GAP is formed between the press piece 32 in contact with the inner surface of the pipe 40 and the support piece 34 in contact with the outer diameter 26 of the bearing 24 so as to be press fit. In addition, the flange 36 for blocking the end of the pipe 40 is formed of a protruding structure. Therefore, after bearings 24 are installed on both sides of the shaft 22 and the shaft 22 is inserted into the pipe 40, the outer diameter 26 of the bearing 24 and the pipe 40 are separated. What is necessary is just to press-fit and fix the housing | casing 30 between inner surfaces.

On the other hand, reference numeral 28 in the drawing shows the inner diameter of the bearing.

At this time, the press piece 32 is formed with a predetermined gap with the support piece 34 in contact with the outer diameter 26 of the bearing 24. When the press piece 32 is pressed while pressing the press piece 32, the press piece The outer surface of the piece 32 is firmly mounted to the inner surface of the pipe 40, thereby being firmly mounted, in which case the flange 36 of the housing 30 is press-fitted until it is in close contact with the end of the pipe 40. .

When the rollers 20 configured as described above are sequentially formed and the conveying material 18 is placed and the driving roller 12 is rotated, the belt 14 as a transmission means receives the guide roller 16 and receives the rollers ( By transmitting the rotational force to 20, each of the rollers 20 is the pipe 40 is rotated in conjunction with the housing 30, so that the conveying material 18 is sequentially moved to the other roller, the transfer is made do.

However, the housing having the structure as described above is simply maintained in the state in which the press-fit piece is in close contact with the inner surface of the pipe simply in parallel, there was a risk of lateral separation as shown in Figure 3b by vibration or shock, As such, when the housing is separated, there is a problem that the function of the roller is paralyzed.

In addition, a predetermined gap is formed between the shaft and the housing, and foreign materials such as dust are introduced into the bearing through the gap. In this case, when the lubricant in the bearing is contaminated and loses viscosity, smooth function is achieved. This was also a problem that paralyzed the roller's function.

Accordingly, the present invention is devised to solve the above problems, to improve the structure of the sealing member to prevent foreign substances from entering the bearing of the roller to be transported is carried by the separation of the sealing member It is an object of the present invention to provide a sealing structure of a conveyor roller that prevents foreign matters from entering into the bearing as well as preventing it.

1 is a view schematically showing a conventional roller conveyor apparatus.

2 is a longitudinal cross-sectional view of FIG.

3A to 3B are partial cutaway cross-sectional views of one side of the roller in FIGS. 1 to 2;

Figure 4 is a partial cutaway cross-sectional view of the roller according to the present invention.

5 is an enlarged view of a portion 'A' of FIG. 4.

<Description of the symbols for the main parts of the drawings>

50: roller 52: shaft

54: bearing 56: housing

56a: press-fit piece 56b: support piece

56c: bending section 56d: main part

58: inner sealing member 58a: fitting piece

58b: protrusion

The sealing structure of the conveyor roller of the present invention for achieving the above object, the shaft is fixed to both ends of the support, the bearing is installed on both outer periphery of the shaft, and the bearing is driven in accordance with the rotation of the belt CLAIMS 1. A conveyor roller comprising a housing interposed between the shaft and a pipe for supporting a pipe, the conveyor roller comprising: a bent portion bent inwardly by an end portion of the pipe thinly formed by a predetermined length; The housing interposed between the inside of the pipe and the bearing has a press-fitting piece whose outer surface has a shape corresponding to the shape of the bent portion of the pipe, and is formed with the press-fitting piece and a predetermined gap therebetween, and one side has an outer diameter of the bearing. It is in close contact with, the support piece having a bending piece extending in a 'b' shape formed in a certain portion integrally; The inner diameter of the bearing and one surface thereof are in close contact with each other, the other surface is in close contact with the outer surface of the shaft, and a fitting piece fitted into a recess formed by the bending piece of the housing and a protrusion piece that is in close contact with the outer lower surface of the housing are integrally formed. An inner sealing member is included.

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

Figure 4 is a partial cutaway cross-sectional view showing a sealing structure of the conveyor roller according to the present invention, Figure 5 is an enlarged view 'A' portion of FIG.

As shown, bearings 54 are provided on both ends of the shaft 52 on which both ends are fixed to the support, and the bearing 54, the housing 56 and the inner sealing member 58, which will be described later, The pipe 60 is provided across the outer periphery of the said shaft 52 in between.

The end of the pipe 60 is formed to be thin in thickness by a predetermined length to form a bent portion 62 toward the shaft 52 side, the housing 56 interposed between the pipe 60 and the bearing 54 is In contact with the inner surface of the pipe 60, the upper surface is provided with a press-fit piece 56a having a shape corresponding to the bent portion 62 of the pipe 60, and the press piece 56a with a predetermined gap. A support piece 56b in close contact with the outer diameter of the bearing 54 and a bent piece 56c extending in a substantially 'b' shape at one lower portion of the support piece 56b and having a recessed portion 56d of a predetermined size are integrated. It consists of a formed structure.

In addition, the inner sealing member 58 is in close contact with the inner diameter of the bearing 54 and one surface thereof, the other surface is in close contact with the outer surface of the shaft 52, the fitting is inserted into the recessed portion (56d) of the housing (56). It consists of a structure in which the piece (58a) and the protruding piece (58b) in close contact with the outer lower surface of the housing (56) are integrally formed.

Accordingly, the support piece 56b of the housing 56 is brought into close contact with the outer diameter 54a of the bearing 54 while the shaft 52 is inserted into the pipe 60, and the inner diameter 54b of the bearing 54 is in close contact with the outer diameter 54a of the bearing 54. ), One surface of the inner sealing member 58 is in close contact with each other, the fitting piece 58a of the inner sealing member 58 is fitted into the recessed portion 56d of the housing 56, and a protruding piece on the outer lower surface thereof. What is necessary is just to insert and fix between the pipe 60 and the shaft 52 in the state which made 58b close in contact.

At this time, one surface of the inner sealing member 58 is pushed while sliding along the outer surface of the shaft 52, one surface of the press-fit piece (56a) of the housing 56 is pushed in close contact with the inner surface of the pipe (60). By being in close contact is made firmly mounted.

In this case, the end of the pipe 60 is formed as thin as the predetermined length as described above, and consists of a bent portion 62 bent to the shaft 52 side, the inner surface side of the pipe 60 When the upper surface of the press-fit piece 56a of the housing 56 is mounted in close contact with each other, as shown in FIGS. 4 to 5, the end of the pipe 60 surrounds the outer portion of the housing 56 inward. The structure of the housing 56 prevents the housing 56 from coming out of the housing due to shock or vibration.

On the other hand, the outer lower surface of the housing 56 keeps the protruding piece (58b) of the inner sealing member 58 in close contact, bar foreign matters, etc. are blocked from flowing into the bearing 54.

At this time, the inner sealing member 58 is fixed on the one side is in close contact with the inner surface of the bearing 54, the other surface is in close contact with the outer surface of the shaft 52, The pipe 60 and the housing 56 are interlocked simultaneously with the outer diameter 54a of the bearing 54 at the same time as the belt is driven.

As described above, according to the sealing structure of the conveyor roller of the present invention, the housing and the roller which is installed between the shaft and the inside of the pipe which is installed on the outer circumferential side of the shaft and rotates according to the driving of the belt, the external impact Falling to the outside by the vibration or the like is prevented, and also the inflow of foreign matter into the bearing is blocked, there is an effect that can perform a long function of the conveyor roller smoothly.

Although the present invention has been described in detail only with respect to the specific examples described, it will be apparent to those skilled in the art that various modifications and variations are possible within the technical spirit of the present invention, and such modifications and modifications belong to the appended utility model registration claims.

Claims (1)

A shaft 52 having both ends fixed to the support, bearings 54 provided on both outer peripheries of the shaft 52, and a pipe 60 surrounding the bearings 54 and driven in accordance with the rotation of the belt. In the conveyor roller 50 comprising a housing 56 interposed between the shaft 52 and the pipe 60 for supporting, An end of the pipe 60 is formed to be thin by a predetermined length and is formed of a bent portion 62 bent inwardly; The housing 56 interposed between the inside of the pipe 60 and the bearing 54 has a press-fit piece 56a whose outer surface has a shape corresponding to the shape of the bent portion of the pipe 60, and the press-fit piece ( 56a) and a support piece 56b having a bent piece 56c extending in a 'b' shape at one side thereof, the one side of which is in close contact with the outer diameter 54a of the bearing 54, and is formed with a predetermined gap therebetween. Integrally made; An inner diameter of the bearing 54 and one surface thereof are in close contact with each other, and the other surface is in close contact with the outer surface of the shaft 52, and a fitting piece fitted into the recessed portion 56d formed by the bent piece 56c of the housing 56 ( 58a) and an inner sealing member (58) formed integrally with the protruding piece (58b) in close contact with the outer lower surface of the housing (56).