KR19980078574A - Timing belt and pulley structure of car - Google Patents

Abstract

The present invention relates to a timing belt and a pulley structure of an automobile. According to the present invention, an elastic band (6) and a tension force of a timing belt (4) seated and rotated on a pulley provided at the front of an engine are excellent in lubricity and elasticity. This excellent metal chain 6 has a combined structure, and a pulley 1 composed of a main gear 3 on which the band 6 of the timing belt 4 rests and a sprocket 2 on which the chain rests. Since the timing belt 4 is rotated, the tension and noise of the chain and the belt are simultaneously taken.

Description

Timing belt and pulley structure of car

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a timing belt and a pulley structure of an automobile, and in particular, a belt having a structure in which a chain and a band are coupled is rotated by being seated on a pulley designed so that the belt is seated. And pulley structure.

In general, an automobile engine is provided with a timing belt, which is a belt connecting a pulley mounted on a crankshaft and a gear mounted on a camshaft. A tooth (coke) engaged with a saw-shaped gear formed on the edge of the pulley is engaged with the belt. Molded into the surface.

Here, the timing belt is made of elastic rubber, glass fiber, etc. in consideration of the lubricity of the belt to reduce the noise generated in the engine.

On the other hand, the pulley is connected to the chain with a stronger tensile force than the belt may also transmit the rotational force.

However, the life of such a belt is short, because the life of the belt should be replaced when the vehicle is driven by about 100,000 km, and the pulley is damaged due to the combination and rotation of the pulley when transmitting the rotational force of the pulleys using the chain. And, there was a problem that noise occurs in the engine unit.

Accordingly, the present invention has been made to solve the above problems, it is to transmit the rotational force of the pulleys using a timing belt of the structure coupled to the belt and chain, damage to the timing belt due to long time use of the timing belt The purpose of the present invention is to provide a timing belt and a pulley structure of a vehicle in which noise generated at the front of the engine in which the pulleys and the timing belt are rotated is reduced.

1 is a schematic view showing a pulley of an automobile engine provided with a belt according to the present invention;

2 is a perspective view illustrating a timing belt and a pulley of a vehicle according to the present invention;

1-pulley, 2-sprocket,

3-cycle fisherman, 4-timing belt,

5-chain section, 6-band section,

6a-depression, 7,8-camshaft pulley,

9-crank pulley, 10-tension,

11-children.

In order to achieve the above object, the present invention is provided with a timing belt consisting of a band which is molded to the surface and a chain seated on the left / right recesses formed by recessing the left / right ends of the bands at right angles. The pulley is composed of a main gear part of the pulley on which the band is seated and a sprocket attached to the left and right parts of the main gear part.

Accordingly, the band of the timing belt is seated and rotated on the main gear provided in the center of the pulley, and the chain seated on the left / right recesses of the band is seated on the sprocket attached to the left / right side of the pulley with a step. And rotated.

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

1 is a perspective view showing a timing belt and a pulley of a vehicle according to the present invention, camshaft pulleys 7 and 8 rotated and provided to the left and right sides of an upper portion of an engine front part, and a crank timing pulley provided to a lower end thereof. (9), a timing belt (4) inserted into the camshaft pulley (7, 8) and the crank timing pulley (9) and rotated to transmit power generated by the engine, and the timing belt (4) is the pulley ( A tension 10 and an idler 11 are configured to prevent relaxation at 7,8,9 and to suppress vibration and noise.

2 is a perspective view showing a timing belt and a pulley seated on the camshaft pulley and the crank timing pulley and rotated to the left and right sides of the main gear 3 and the main gear 3, which are gears formed as a center part. A pulley (1) consisting of a sprocket (2), which is a gear having a step and attached thereto; A band-shaped band 6 composed of a depression 6a formed by recessing the left and right ends at right angles, and a central portion 6b on which teeth formed by the main gear 3 of the pulley 1 are molded; The timing belt 4 which consists of the chain 5 attached to the left / right depression 6a of (6) is comprised.

Accordingly, the band 6 of the timing belt 4 is seated and rotated on the main gear 3 provided in the center of the pulley 1, and is rotated to the left and right depressions 6a of the band 6. The seated chain 5 is rotated by being seated on a sprocket 2 attached to the left and right sides of the pulley 1 and having a step.

Accordingly, since the timing belt 4 is made of a metal material, the chain 5 having a high tensile force and a glass fiber and an elastic fiber material band 6 are combined with excellent elasticity and noise, thereby preventing the belt from being cut and Life is extended.

As described above, according to the present invention, the timing belt seated on the pulley provided at the front of the engine is rotated to have a structure in which a band of elastic material having excellent lubricity and elasticity and a chain of metal material having excellent tensile force are combined. Since the timing pulley is rotated on the pulley made up of the main gear part on which the band of the timing pulley is seated and the sprocket on which the chain is seated, it has the effect of increasing the service life of the chain and the belt, because the tension and noise reduction are simultaneously taken.

Claims (1)

Camshaft pulley which is provided to rotate left / right of the upper portion of the front of the engine, the crank timing pulley provided to the bottom, the cam shaft pulley and the timing belt is inserted into the crank timing pulley to rotate and transmit power; In the tension belt which prevents the timing belt from relaxing and suppresses vibration and noise, and in the timing belt and pulley structure of an automobile in which children are configured, the main gear part 3, which is a gear formed at the center part of the pulley, and the main gear part 3 A pulley 1 composed of a sprocket 2 which is a gear attached to the left side and a right side; A band-shaped band 6 composed of a depression 6a formed by recessing the left and right ends at right angles, and a central portion 6b on which teeth formed by the main gear 3 of the pulley 1 are molded; Timing belt and pulley structure of a vehicle composed of a timing belt (4) consisting of a chain (5) attached to the left and right depressions (6a) of (6).