JP2000289828A - Transmission device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent slip and noise from generating by covering at least the surface of one rotational roller with textiles planted with short fiber, and planting short fiber on the roller contact surface of a belt. SOLUTION: The surface of at least one rotational roller is covered with textiles planted with short fiber. The roller is usually a metal, and hence it is favorable to wind textiles on the surface and be bonded. The covered roller can be a driving roller or a driven roller, but favorably the driving, roller, and it is further favorable that all the rollers are covered with textiles. For material of the textiles, natural fiber such as cotton or wool, and synthetic fiber such as nylon or polyester can be used, but aramid fiber of excellent heat resistance and strength is favorable. For a belt, textiles planted with short fiber is used. Material of the textiles used for the belt, is favorable to be nylon fiber or aramid fiber.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission that does not slip between a roller and a belt, withstands a high load, and has no noise.

[0002]

2. Description of the Related Art A power transmission device that transmits the rotational power of a drive shaft to another shaft, or a transport transmission device that rotates an endless belt using the rotation of a drive shaft to transport an object, includes a rotating roller and a belt. Are widely used.

The functions required of such a transmission are that the roller and the belt operate in synchronism without slipping, that the belt withstands a high load in the case of conveyance, that the belt has durability and heat resistance. Have the property.

[0004] In order to eliminate the slip between the roller and the belt, for example, there is a method of using a toothed belt in which a toothed gear is used for a rotating roller and a tooth pattern is also provided on the back surface (roller contact surface) of the belt. Has been adopted. On the other hand, when high load, heat resistance, and durability are required, a belt made of a fiber reinforced sheet impregnated with heat resistant rubber or the like is used.

[0005]

The above-mentioned prior art has a certain effect depending on the purpose of use.

[0006] However, although the combination of the gear and the toothed belt is excellent in that it does not cause slip, it generates noise during operation, and especially in the case of transport, non-transported objects on the belt are often handled by humans. However, there was a disadvantage that the work environment was harmed. In addition, fiber-reinforced belts impregnated with rubber are excellent in durability, but have poor followability to the roller surface, and have a disadvantage in that when used for a long period of time, they will slip with the roller and power will not be transmitted accurately. Was.

[0007]

To achieve the above object, the present invention takes the following measures. (1) In a transmission device in which a belt is wound endlessly on two or more rotating rollers, the surface of at least one rotating roller is covered with a woven fabric in which short fibers are planted, and the roller contact surface of the belt is short. A transmission device characterized by planting fibers. (2) The transmission according to (1), wherein the short fibers are aramid fibers. (3) The transmission according to (1) or (2), wherein the belt is a belt made of aramid fiber. (4) The transmission according to (1) to (3), wherein the short fiber has a fineness of 0.5 to 10 denier and a fiber length of 0.1 to 5 mm. (5) The transmission according to the above (1) to (4), wherein the flocking is electric flocking. (6) The above (1) to wherein the belt is a conveyor belt
(5) The transmission device for conveyance according to (5).

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described specifically.

The transmission of the present invention is obtained by winding a belt endlessly around two or more rotating rollers. The rotating roller usually includes a driving roller and a driven roller, and two or more, and in some cases, a large number of rollers are used in combination. At least one surface of the rotating roller is coated with a woven fabric in which short fibers are planted. Since the roller is usually a metal, it is preferable that the fabric is wound around the surface and adhered. The roller to be coated may be a driving roller or a driven roller, but preferably,
It is a driving roller, and more preferably it is coating all the rollers with a fabric. The material of the woven fabric is not particularly limited, and natural fibers such as cotton and wool, and synthetic fibers such as nylon and polyester may be used, but aramid fibers having excellent heat resistance and strength are preferable. Aramid fiber is a general term for aromatic polyamide fibers, including wholly aromatic polyamides, aromatic polyamides in which some non-aromatic monomers are copolymerized, and preferably fibers made of para-based wholly aromatic polyamides. It is.

It is necessary that short fibers are planted on the surface of the woven fabric (the surface not adhered to the roller). A method of implanting staple fibers into a woven fabric to obtain a velvety cloth has been conventionally known. In the present invention, hair implantation can be performed by a known technique, and among them, electric flocking utilizing static electricity is preferable.

In practice, the woven fabric thus planted is wound around and adhered to the surface of the rotating roller. The roller in which the woven fabric in which the short fibers are planted is wound has an increased frictional force as compared with the metal surface where the metal is exposed, so that the belt surface can be gripped accurately.

Next, the belt of the present invention uses a woven fabric in which short fibers are planted, similarly to the cloth covering the roller. The material of the woven fabric used for the belt is not particularly limited as in the case of the above-described woven fabric material for covering the roller. However, in the case of the belt, nylon fibers and aramid fibers are preferable since they require particularly high strength. The woven fabric of the belt may be not only a simple woven fabric, but also a laminate of a plurality of woven fabrics, a so-called rubberized sheet in which rubber or the like is adhered to one surface of the woven fabric, or the like.

[0013] Short fibers must be planted on the back surface (contact surface with the roller) of the woven fabric of the belt. The short fibers are the same as the short fibers planted in the woven fabric covering the roller, and thus the description thereof is omitted.

The fineness of these short fibers should be selected according to the material of the fibers and the use of the apparatus.
It is 5 to 10 denier, preferably 1 to 5 denier.
The fiber length is 0.1 to 5 mm, preferably 0.5 to 5 mm.
３3 mm.

As described above, in the present invention, since the short fibers planted on the surface of the roller and the back surface of the belt are present, they mesh with each other to prevent slipping and prevent noise.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an explanatory side view of a transfer transmission device in which the transfer device of the present invention is applied for transfer. An endless belt 2 is hung on a drive roller 1 and a driven roller 1 ′. Is a non-transporting body 3 being loaded and transported. FIG. 2 is an enlarged explanatory view of the contact portion between the roller and the belt in FIG. 1. The drive roller 1 is a metal roller body 4 having a surface coated with an aramid fiber fabric 5. Has a short fiber 6 of aramid planted on the entire surface. The conveyor belt 2 is composed of a sheet 7 obtained by rubberizing an aramid fiber woven fabric, and a short surface of an aramid short fiber 8 planted in the woven fabric is present on the back surface (contact surface with the roller) on one surface.

[0018]

According to the conveying device of the present invention, since short fibers are implanted on the roller surface and the back surface of the belt, these fibers are engaged with each other, no slip occurs, and no noise is generated. In addition, since the gripping force by the end fibers is strong, the tension can be applied to the belt accordingly, and as a result, it is possible to withstand a high load of conveyance.

The use of high-strength, heat-resistant aramid fibers for the roller surface, belt, and short fiber can improve heat resistance and durability.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a transmission according to the present invention.

FIG. 2 is a partially enlarged explanatory view of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Drive roller 2 ... Belt 3 ... Non-conveying body 4 ... Metal roller main body 5 ... Coated fabric 6 ... Flocked staple fiber 7 ... Sheet 8 ... Flooded staple fiber

Claims (6)

[Claims] 1. A transmission device in which a belt is wound around two or more rotating rollers in an endless manner, the surface of at least one of the rotating rollers is covered with a woven fabric in which short fibers are planted, and the surface of the belt is in contact with the roller. Is a transmission device in which short fibers are planted. 2. The transmission according to claim 1, wherein the short fibers are aramid fibers. 3. The transmission according to claim 1, wherein the belt is a belt made of aramid fiber. 4. The fineness of the short fiber is 0.5 to 10 denier,
The transmission according to any one of claims 1 to 3, wherein the fiber length is 0.1 to 5 mm. 5. The transmission according to claim 1, wherein the flocking is electric flocking. 6. The transport transmission according to claim 1, wherein the belt is a conveyor belt.