KR200206207Y1 - Structure of friction roller - Google Patents

Abstract

Disclosed is a friction roller integrated with a wheel frame by combining friction wheels of different materials. This includes a wheel frame having a flange formed at one end of the boss portion where the shaft hole is drilled so that the friction roller rotation shaft is restrained in the rotational direction thereof, and a friction wheel of another material having a through hole formed at the other end of the boss portion along the outer peripheral surface thereof. The wheel cap is fitted to the other end of the boss portion protruding to the outside of the friction wheel, and the coupling member is integrally coupled by a fastening member through a plurality of fastening holes respectively formed to penetrate the flange, the friction wheel and the wheel cap on the same line. . Accordingly, there is no peeling problem according to the structure made by coating a material reinforced with friction and abrasion resistance such as urethane to a wheel frame made of a conventional metal or a wheel shape having a certain thickness, and the friction wheel part is worn and replaced. If necessary, this part can be replaced separately, which is economical.

Description

Friction Roller Structure {STRUCTURE OF FRICTION ROLLER}

The present invention relates to a structure of a friction roller, and more particularly, a friction roller structure in which an integrated coupling structure is improved by being provided with a wheel frame and a friction wheel of another material for reinforcing friction. It is about.

1 shows an example of a conventional friction roller structure in which a friction wheel 2 having a predetermined thickness is bonded to an outer circumferential surface of a wheel frame 1 having a shaft hole 3 to which a rotating shaft (not shown) is bonded with an adhesive. Is shown.

This is a material of the friction surface is considered for a conventional roller that is not provided with a wheel frame and a friction wheel separately and the cylindrical wheel directly coupled to the rotating shaft as described above, depending on the application target The effect is to improve friction and noise reduction.

That is, the material of the friction wheel (2) in consideration of its own elastic properties, friction characteristics and wear resistance, etc. by selecting a material such as rubber or urethane, or by coating the thickness of the friction wheel (2) with a very thin film By doing so, it is possible to obtain the expected effect according to the purpose of use and the application object.

However, when the friction roller as described above needs to be replaced due to wear or breakage of the friction wheel portion over a period of use, there is a problem that partial replacement of the friction wheel is impossible.

In addition, when the friction roller is used in a place requiring a relatively large friction force or a place where a high temperature atmosphere is formed, the friction wheel portion is easily separated from each other as excessive force or heat is continuously applied to the bonding portion. As described above, partial replacement and repair were not possible, so the entire replacement was not economical.

The present invention has been devised in view of the above problems, and the friction roller that is provided with a wheel frame and a friction wheel, respectively, and the friction wheel part of the integrated friction roller is easily replaced when the friction wheel part is damaged by peeling or abrasion. To provide a task of the design.

1 is a longitudinal sectional view showing a conventional friction roller structure.

Figure 2 is a longitudinal cross-sectional view showing an exploded structure of the friction roller according to the present invention.

Figure 3 is a longitudinal sectional view of the assembled state showing the structure of the friction roller according to the present invention.

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

10: wheel frame

11: boss

12: flange

20: friction wheel

21: through hole

30: wheel cap

40: Wrench Bolt

10 ', 20', 30 ': Fastener

The present invention for achieving the above object is a friction frame formed with a flange on one end of the boss portion is a shaft hole is drilled so that the rotation axis is restrained in the rotational direction, the friction formed through holes to be fitted along the outer peripheral surface at the other end of the boss portion A fastening member for integrally coupling through a wheel, a wheel cap fitted to the other end of the boss portion projecting outwardly into which the friction wheel is fitted, and a plurality of fastening holes respectively formed to penetrate the flange, the friction wheel and the wheel cap on the same line. It is equipped with.

In addition, according to a preferred feature of the present invention, the friction wheel is provided with a urethane material excellent in wear resistance and friction characteristics.

Thus, the structure of the friction roller according to the present invention, the combination of the wheel frame and the friction wheel is firm and secure, there is no fear of falling off the friction wheel from the wheel frame, the prefabricated structure capable of partial replacement by wear or damage of the friction wheel It is

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

2 and 3 is a longitudinal cross-sectional view of the disassembled state showing the structure of the friction roller according to the present invention and a longitudinal cross-sectional view of the coupled state thereof.

Referring to the drawings, the wheel frame 10 has a boss portion 11 in which a shaft hole 13 is drilled so that a rotating shaft (not shown) is fitted, and a flange 12 is formed along the circumference of one end thereof. A plurality of fastening holes 10 'are formed at 12.

The friction wheel 20 is formed with a through hole 21 to be fitted along the outer circumferential surface of the other end of the boss portion 11 of the wheel frame 10, the flange 12 along the periphery of the through hole 20 The fastening hole 10 'and the same position and the same size fastening hole 20' is formed.

The wheel cap 30 is fitted to the other end of the boss portion 11 protruding outward from the friction wheel 20 is fitted to the boss portion 11 of the wheel frame 10, the wheel frame 10 and A plurality of fastening holes 30 'are formed at the same position and the same size as the fastening hole of the friction wheel 20.

In particular, the number of wrench bolts 40 which are fastening members entered from the wheel cap 30 by forming a female thread along the inner circumferential surface in the fastening hole 10 ′ formed in the flange 12 of the wheel frame 10 of the driven embodiment. It was to be directly engaged with the thread.

Assembly of the friction roller according to the present invention passes the boss portion 11 of the wheel frame 10 through the through hole 21 of the friction wheel 20, the wheel cap 30 at the other end of the boss portion 11 Inserting a plurality of fastening holes 10 ', 20', 30 'formed in the flange 12, the friction wheel 20, and the wheel cap 30 of the wheel frame 10 so as to pass through the same line. The assembly is completed integrally by tightening the wrench bolt 40 in the state.

As described above, when the friction wheel 20 needs to be replaced, the reverse assembly may be performed by disassembling to a new friction wheel and assembling it.

The above embodiment is merely a description of one preferred embodiment according to the present invention, the scope of application of the present invention is not limited to this and can be appropriately changed within the scope of the same idea. For example, the shape and structure of each component shown in the embodiment of the present invention can be modified.

As described above, according to the structure of the friction roller according to the present invention, since the coupling between the wheel frame and the friction wheel is rigidly and securely assembled by penetrating the fastening member regardless of the adhesion, it requires a relatively large friction force as described above. Even if applied to an environment or a high temperature environment, there is no fear of the friction wheel falling from the wheel frame, and there is an advantage in that partial replacement is easy when the friction wheel is worn or damaged.

In addition, the friction wheel of various thicknesses and materials can be used in the same wheel frame, there is an advantage that has a wide range of applications.

Claims (2)

A wheel frame having a flange formed at one end of the boss portion in which the shaft hole is constrained to be constrained in the rotational direction thereof, a friction wheel of another material having a through hole formed to be fitted along the outer circumferential surface at the other end of the boss portion, and the friction wheel is And a fastening member which is integrally coupled to each other through a plurality of fastening holes respectively formed to penetrate the flange, the friction wheel, and the wheel cap on the same line. Friction roller structure. The friction roller structure according to claim 1, wherein the friction wheel is made of urethane material.