KR20090030602A - Pulley - Google Patents

Pulley Download PDF

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Publication number
KR20090030602A
KR20090030602A KR1020070096007A KR20070096007A KR20090030602A KR 20090030602 A KR20090030602 A KR 20090030602A KR 1020070096007 A KR1020070096007 A KR 1020070096007A KR 20070096007 A KR20070096007 A KR 20070096007A KR 20090030602 A KR20090030602 A KR 20090030602A
Authority
KR
South Korea
Prior art keywords
bearing
rotating member
axial direction
pulley
outer circumference
Prior art date
Application number
KR1020070096007A
Other languages
Korean (ko)
Inventor
권기현
장재덕
주인식
Original Assignee
한국파워트레인 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 한국파워트레인 주식회사 filed Critical 한국파워트레인 주식회사
Priority to KR1020070096007A priority Critical patent/KR20090030602A/en
Publication of KR20090030602A publication Critical patent/KR20090030602A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32—Friction members
    • F16H55/36—Pulleys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/0018—Shaft assemblies for gearings
    • F16H57/0025—Shaft assemblies for gearings with gearing elements rigidly connected to a shaft, e.g. securing gears or pulleys by specially adapted splines, keys or methods

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pulleys (AREA)

Abstract

A pulley is provided to make the assembling process simple and increase the productivity by forming a bearing housing and a belt is formed into one body. A sleeve(3) is combined in the outer circumference of the axis of rotation(1). A bearing(5) is arranged in the outer circumference of sleeve. A rotating member(9) is combined in the outer circumference of bearing. A part of the rotating member is extended from the center of rotation to the outer circumference, and forms the belt groove. A spacer is fixed to the rotating member into the axis direction. A cooling fan is fixed to the spacer. The rotating member comprises a bearing support part(9a) and a body part(9b).

Description

Pulley

The present invention relates to a pulley, and more particularly, to a pulley (Pulley) that can be applied to the cooling fan for cooling the radiator of the vehicle, to simplify the assembly process and improve the productivity by reducing the number of parts.

In general, the pulley (pulley) can be used in combination with a cooling fan (device for cooling the radiator) used as a part of the vehicle. The pulley is fixed to a bearing fixed to the outer circumference of the rotating shaft, the bearing housing is fixed to the outer circumference of the bearing. And the bearing member is coupled to the rotating member for guiding the movement of the belt. And the spacer is coupled to the rotating member is fixed to the cooling fan in the axial direction. The bearing housing is machined into a separate component and combined through the process of press-fitting with the bearing. And the bearing housing is fixed to the rotating member through a press-in process. In addition, the bearing housing and the rotating member are coupled by separate fastening means such as bolts. Since the conventional pulley has a large number of parts, the bearing housing is fixed to the bearing and the press-fitting process, and then the assembly pulley is fixed to the rotating member and the press-fitting again.

Accordingly, the present invention has been proposed to solve the above problems, and an object of the present invention is to provide a pulley which reduces the number of parts and at the same time reduces the number of assembly processes and improves productivity.

In order to achieve the object as described above, the present invention, a rotation shaft, a sleeve coupled to the outer circumference of the rotating shaft, a bearing disposed on the outer circumference of the sleeve, coupled to the outer circumference of the bearing and a portion extending from the rotation center to the outer circumferential surface It provides a pulley including a rotating member provided with a belt groove, and a spacer fixed to the rotating member in the axial direction and the cooling fan is fixed.

The rotating member includes a bearing support portion extending in the axial direction to support the bearing, a body portion extending in the circumferential direction from the center of the rotating shaft in the bearing support portion, and extending in the axial direction of the rotating shaft in the body portion and a belt on an outer circumferential surface thereof. It is preferable to include a belt guide formed with guide grooves for guiding the movement.

The rotating member is preferably provided with bolt holes for engaging the spacer in the axial direction in the body portion.

The spacer is preferably provided with fastening holes for axially coupling the cooling fan.

The fastening holes are preferably arranged on the same circumference and are made of long holes.

The present invention has the effect of increasing the productivity by simplifying the assembly process by reducing the number of parts by integrally molding the bearing housing and the rotating member for guiding the belt coupled to the outer circumference of the bearing. In addition, the present invention can be produced by the V-GROOVE (roll forming) method for guiding the movement of the belt on the outer periphery of the rotating member integrally formed with the bearing housing can simplify the processing process to improve productivity.

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

FIG. 1 is a perspective view illustrating an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the II-II part of FIG. 1, showing the pulley 1. The pulley 1 is fixed to the rotation shaft 1, the sleeve 3 fixed to the outer circumference of the rotation shaft 1, the bearing 5 fixed to the outer circumferential surface of the sleeve 3, and the outer circumferential surface of the bearing 5, Rotating member 7 and the spacer 9 is coupled to the axial direction of the rotating member (7).

The sleeve 3 is fixed to the outer circumference of the conventional rotating shaft 1 serves to support the inner ring of the bearing (5). The outer ring of the bearing 5 supports the rotating member 9. The rotating member 9 has a bearing support 9a supported by the bearing 5, a body portion 9b extending in the circumferential direction of the shaft from the bearing support portion 9a, and a guide extending in the axial direction from the body portion 9b. The part 9c is provided. The bearing support 9a is supported by the outer ring of the bearing 5 so as to be free to rotate with the rotation shaft 1. The body portion 9b extending from the bearing support portion 9a is provided with a plurality of bolt holes 9d in the axial direction. Bolts B are inserted into the bolt holes 9d to fix the spacer 7 and the spacer 7 in the axial direction. In addition, the body portion 9b is provided with a fastening hole 9e made of a long groove in the axial direction. This fastening hole 9e is for fixing the cooling fan F by using a bolt. That is, the cooling fan F may rotate while passing through the fastening hole 9e provided in the body portion 9b of the spacer 7 and the rotating member 9 with a bolt or the like and having the same center of rotation as the rotation shaft 1. To be combined. The guide portion 9c has a shape that is bent by extending the body portion 9b in the axial direction. This guide portion 9c is provided on the outer circumferential surface with a plurality of guide grooves 9f (V-GROOVE) along the rotational direction. The guide grooves 9f may be manufactured by roll forming to further increase precision and increase productivity. Belts (not shown) are inserted into the guide grooves 9f to be rotated by receiving a driving force of the belt. That is, the rotating member 9 is provided with a bearing support 9a fixed to the bearing 5, a body 9b extending from the bearing support 9a, and a guide groove 9f for guiding the belt. The part 9c is manufactured integrally as one component. Therefore, the number of parts can be reduced and manufacturing can be made in one step of pressing the bearing 5 in the assembly process, thereby increasing productivity.

On the other hand, the spacer 7 is arranged in a state in which a certain distance is floated when the cooling fan is coupled to the rotating member 9 to achieve a smooth rotation.

1 is a view showing a pulley for explaining an embodiment of the present invention.

2 is a cross-sectional view illustrating a II-II part of FIG. 1.

Claims (5)

Rotation axis; A sleeve coupled to an outer circumference of the rotation shaft; A bearing disposed on an outer circumference of the sleeve; A rotating member coupled to the outer circumference of the bearing and a portion extending from the rotation center to the outer circumferential surface to provide a belt groove; A spacer fixed to the rotating member in an axial direction and having a cooling fan fixed thereto; Including a pulley. The method according to claim 1, The rotating member is A bearing support extending in an axial direction to support the bearing; A body portion extending in the circumferential direction from the center of the rotation shaft in the bearing support portion, and A belt guide portion extending from the body portion in the axial direction of the rotating shaft and having guide grooves for guiding the movement of the belt on an outer circumferential surface thereof; Including a pulley. The method according to claim 2, The rotating member is A pulley provided with bolt holes for engaging the spacer in the axial direction in the body portion. The method according to claim 1, The rotating member is provided with a fastening hole in the axial direction for engaging the cooling fan. The method according to claim 4, The fastening holes are arranged on the same circumference and made of a long hole.
KR1020070096007A 2007-09-20 2007-09-20 Pulley KR20090030602A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020070096007A KR20090030602A (en) 2007-09-20 2007-09-20 Pulley

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070096007A KR20090030602A (en) 2007-09-20 2007-09-20 Pulley

Publications (1)

Publication Number Publication Date
KR20090030602A true KR20090030602A (en) 2009-03-25

Family

ID=40696874

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020070096007A KR20090030602A (en) 2007-09-20 2007-09-20 Pulley

Country Status (1)

Country Link
KR (1) KR20090030602A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220139529A (en) * 2021-04-08 2022-10-17 주식회사 스타리온 A pulley assembly with speed increaser

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220139529A (en) * 2021-04-08 2022-10-17 주식회사 스타리온 A pulley assembly with speed increaser

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Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application