KR20170022630A - Drive shaft for vehicle - Google Patents

Drive shaft for vehicle Download PDF

Info

Publication number
KR20170022630A
KR20170022630A KR1020150117867A KR20150117867A KR20170022630A KR 20170022630 A KR20170022630 A KR 20170022630A KR 1020150117867 A KR1020150117867 A KR 1020150117867A KR 20150117867 A KR20150117867 A KR 20150117867A KR 20170022630 A KR20170022630 A KR 20170022630A
Authority
KR
South Korea
Prior art keywords
shaft
dust cover
bearing
intermediate shaft
pressing portion
Prior art date
Application number
KR1020150117867A
Other languages
Korean (ko)
Other versions
KR101934011B1 (en
Inventor
박준성
노정수
변성태
최종환
은준용
조승혁
Original Assignee
이래오토모티브시스템 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 이래오토모티브시스템 주식회사 filed Critical 이래오토모티브시스템 주식회사
Priority to KR1020150117867A priority Critical patent/KR101934011B1/en
Publication of KR20170022630A publication Critical patent/KR20170022630A/en
Application granted granted Critical
Publication of KR101934011B1 publication Critical patent/KR101934011B1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/22—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
    • B60K17/24—Arrangements of mountings for shafting
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F16C3/02—Shafts; Axles
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Ocean & Marine Engineering (AREA)
  • Motor Power Transmission Devices (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

A drive shaft for a vehicle according to an embodiment of the present invention includes a half shaft, an intermediate shaft coupled to one side of the half shaft and rotated together with the half shaft by receiving power, a stationary bracket fixed to a vehicle body and having a bearing on the inner side thereof to support the intermittent shaft, and a dust cover which is press-fitted into one side of the intermittent shaft and elastically deformed to press the intermittent shaft, and disposed on one side of the bearing whose front surface is exposed, to close the front surface of the bearing. According to the present invention, a seating groove is formed in the intermediate shaft and an annular pressing portion that is seated in the seating groove through elastic deformation is formed in the dust cover. As a result, the dust cover is fixed at the correct position and foreign substances can be prevented from coming into the bearing even if an external force or a rotational force is applied.

Description

Drive shaft for vehicle < RTI ID = 0.0 >

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive shaft for an automobile, and more particularly, to a drive shaft for an automobile having an improved structure of a dust cover for blocking the inflow of foreign matter from the outside.

Generally, a drive shaft of an automobile is a device for transmitting a rotational driving force of a transmission to a driving wheel side, and includes an intermediate shaft disposed between a half shaft and a half shaft and a transmission for transmitting the power of the transmission to a half shaft, And a fixed portion for supporting an axial load of the intermediate shaft.

The fixing part is composed of a bracket fixed to the vehicle body, a bearing disposed inside the bracket and penetrating the intermediate shaft to the inside, and a dust cover coupled to the intermediate shaft and disposed in front of the bracket.

The dust cover is formed in a ring shape and includes a body portion coupled to the outside of the intermediate portion and an extension portion extending outwardly from the end portion of the body portion, and the front surface of the bracket is closed through an outwardly extending portion, It is possible to prevent foreign matter from being introduced into the bearing from the outside.

However, the conventional dust cover is merely inserted and fitted into the intermediate shaft, but is not completely fixed to the intermediate shaft, so that there is a problem that when the external force or the rotational force is applied, the dust cover is disengaged from the original assembly position.

Therefore, in order to prevent foreign matter from being introduced into the bearings and to prevent the dust cover from being separated from the bearing, additional parts for fixing the dust cover to the intermediate shaft or the vehicle have been required.

Korean Registration Practical Bulletin 20-0120234

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a drive shaft for an automobile, which is capable of blocking foreign matter introduced into a bearing, .

According to an aspect of the present invention, there is provided a drive shaft for a vehicle, including a half shaft, an intermediate shaft coupled to one side of the half shaft and rotated together with the half shaft, A fixed bracket having a bearing on its inner side to support the intermittent shaft and a fixed bracket that is press-fitted into one side of the intermittent shaft and elastically deformed to press the intermittent shaft, And a dust cover for closing the front surface of the bearing.

Wherein the dust cover has an annular pressing portion that penetrates the inside thereof and has an inner diameter smaller than the outer diameter of the intermediate shaft and is elastically deformed so as to flare outward when the pressing cover is inserted into the outer peripheral surface of the intermediate rod, And a cover portion extending to close the front surface of the bearing.

The pressing portion is provided with a locking protrusion protruding toward the intermediate shaft, and the intermitting shaft is formed with a locking groove on which the locking portion is seated.

The latching portion and the seating groove may be formed in a plurality of.

The pressing portion may have a plurality of mounting grooves recessed at a predetermined depth along the longitudinal direction from the end portion and spaced apart at regular intervals along the circumference of the pressing portion.

The latching portion may be rounded or chamfered.

The dust cover may be coated or coated.

According to the present invention, the recessed groove is formed in the intermediate shaft, and the dust cover is formed with the annular pressing portion that is seated in the seating groove through the elastic deformation, so that even when the external force or the rotational force is applied, So that foreign matter can be prevented from flowing into the bearing.

Further, since the dust cover is fixed to the intermediate shaft only by its own structure, it is possible to prevent the additional construction or process for fixing the dust cover from occurring, thereby reducing the cost.

1 is a schematic view of a drive shaft for a vehicle according to an embodiment of the present invention.
2 is a perspective view showing a front surface and a rear surface of a dust cover of a drive shaft for a vehicle according to an embodiment of the present invention.
3 is a cross-sectional view schematically illustrating a state in which a dust cover and an intermediate shaft of a drive shaft for a vehicle are disassembled according to an embodiment of the present invention.
4 is a cross-sectional view schematically showing a state in which a dust cover of a drive shaft for an automobile is press-fitted into an intermediate shaft according to an embodiment of the present invention.
5 is a cross-sectional view schematically showing a state in which a dust cover of a drive shaft for a vehicle according to an embodiment of the present invention is fully press-fitted into an intermediate shaft.
FIG. 6 is a cross-sectional view schematically showing a state where a plurality of fastening portions and seating grooves of a drive shaft for a vehicle according to an embodiment of the present invention are formed.
7 is a view schematically showing various shapes of the engaging portion of a drive shaft of an automobile according to an embodiment of the present invention.

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

2 is a perspective view showing a front surface and a rear surface of a dust cover of a drive shaft for a vehicle according to an embodiment of the present invention, and FIG. 3 is a cross- Sectional view schematically showing a state in which a dust cover and an intermediate shaft of a drive shaft for an automobile according to an embodiment of the present invention are disassembled. 4 is a cross-sectional view schematically showing a state in which a dust cover of a drive shaft for an automobile according to an embodiment of the present invention is press-fitted into an intermediate shaft. FIG. 5 is a cross- FIG. 6 is a cross-sectional view schematically showing a state in which a latch portion and a seating groove of a drive shaft for an automobile according to an embodiment of the present invention are formed in a plurality And FIG. 7 is a view schematically showing various shapes of the engaging portion of the drive shaft of the vehicle according to the embodiment of the present invention.

Referring to FIG. 1, a drive shaft for an automobile (hereinafter, referred to as 'a drive shaft for an automobile') according to an embodiment of the present invention is a device for transmitting a rotational driving force of a transmission to a driving wheel side. The half shaft 10, An intermediate shaft 20 coupled to one side of the intermediate shaft 10 and rotated together with the half shaft 10 to receive the power and a bearing 31 fixed to the vehicle body, And a dust cover 40 disposed in front of the fixing bracket 30 to close the front surface of the fixing bracket 30. [

Hereinafter, the dust cover 40 will be described in more detail.

The dust cover 40 is press-fitted into one side of the intermittent shaft 20 and is elastically deformed at the time of press fitting to press the intermittent shaft 20 so as to be brought into close contact with the outer surface of the intermittent shaft 20, And is then disposed on one side of the bearing 31 whose front surface is exposed to close one side of the fixed bracket 30 that is open.

2, the dust cover 40 may include a pressing portion 41 which is in close contact with the outer circumferential surface of the intermittent shaft 20 and a lid portion 43 which is disposed in front of the fixing bracket 30 .

The pressing portion 41 has an inner diameter that is smaller than the outer diameter of the intermediate shaft 20 and is press-fitted into the outer peripheral surface of the intermediate shaft 20, as shown in FIG. 4, And may be formed in an annular shape that is elastically deformed so as to spread.

The lid part 43 extends in the radial direction of the pressing part 41 from the end of the pressing part 41 to close the opened front face of the fixing bracket 30 to prevent foreign matter from entering the bearing 31 from the outside .

On the other hand, the dust cover 40 and the intermediate shaft 20 can be formed to be fastenable to each other.

1 and 3, the pressing portion 41 is provided with a locking portion 411 protruding toward the intermediate shaft 20, and the intermittent shaft 20 is provided with a locking portion 411 corresponding to the locking portion 411 A seating groove 21 in which the latching portion 411 is seated can be formed.

That is, the dust cover 40 can be completely restrained in the axial direction and fixed to the intermittent shaft 20 by fastening the engaging portion 411 to the seat groove 21.

At this time, in order to maximize the fixing force of the dust cover 40, the locking part 411 and the seating groove 21 may be formed as a plurality as shown in FIG.

Illustratively, the plurality of locking portions 411 may be formed in shapes or sizes different from each other in order to maximize the fastening force with the intermediate shaft 20.

In addition, the latching portion 411 can be formed in the seating groove 21 so as to be easily detachable.

1 and 7, the latching portion 411 may be formed in a shape bent at a right angle as shown in FIG. 1, or may be bent in a predetermined angle toward the inside as shown in FIG. 7 (a) 7 (b) so as to form a sloped surface, and may be rounded to be rounded toward the inside, as shown in Fig. 7 (b).

Accordingly, the engaging portion 411 can be easily attached to and detached from the seating groove 21, and further, the surface damage of the intermediate shaft 20 can be minimized. Illustratively, the dust cover 40 may be coated or coated.

On the other hand, the pressing portion 41 may be provided with an assembly groove 413.

Referring to FIGS. 2 and 3, a plurality of mounting grooves 413 may be formed in the pressing portion 41 so as to be recessed at a predetermined depth along the longitudinal direction from the end portion and spaced equidistantly along the circumference of the pressing portion 41 have.

That is, when the pressurizing portion 41 is press-fitted into the intermittent shaft 20 through the plurality of assembly grooves 413 formed along the peripheries thereof, the pressurizing portion 41 may be elastically deformed as shown in FIG. 4, . On the contrary, the pressing portion 41 may be resiliently restored to the seating groove 21 as shown in FIG. 5 after the press-fitting is completed.

Hereinafter, a process in which the dust cover 40 of the drive shaft of the automobile is pressed into the intermediate shaft 20 will be described.

For the sake of explanation, the reference numerals used in describing the drive shaft of the automobile are the same as those used in the description of the drive shaft of the automobile drive shaft , And a duplicate description will be omitted.

4 and 5, when the dust cover 40 is press-fitted into the outer surface of the intermittent shaft 20, the pressing portion 41 is turned outward to elastically deform, and the end portion of the engaging portion 411 And is in close contact with the outer surface of the intermediate shaft 20.

The elastically deformed pressing portion 41 is moved in the direction in which it is press-fitted in the elastically deformed state and reaches the seating groove 21 of the internally recessed intermittent shaft 20 during the movement, And is elastically restored.

At this time, the pressing portion 41 to be elastically restored is brought into close contact with the outer surface of the intermediate shaft 20 to press the intermediate shaft 20, and at the same time, the engaging portion 411 is caught in the seating groove 21 and fastened .

As described above, according to the present invention, the seating groove 21 is formed in the intermediate shaft 20, and the annular pressing portion 41, which is seated in the seating groove 21 through elastic deformation, Even when an external force or a rotational force is applied, the dust cover 40 is fixed at a predetermined position at all times to prevent foreign matter from entering the bearing 31. [

Further, since the dust cover 40 is fixed to the intermediate shaft 20 only by its own structure, it is possible to prevent the additional construction or process for fixing the dust cover 40 from being further generated, thereby reducing the cost .

While the present invention has been particularly shown and described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And all changes and modifications to the scope of the invention.

10. Half Shaft
20. Intermediate shaft
21. Seating groove
30. Fixing Bracket
31. Bearing
40. Dust cover
41. The pressurizing portion
411.
413. Assembly groove
43. Cover

Claims (7)

Half shaft,
An intermediate shaft coupled to one side of the half shaft and rotated together with the half shaft by receiving power,
A stationary bracket fixed to the vehicle body and bearing a bearing inside to support the intermittent shaft, and
A dust cover which is press-fitted into one side of the intermediate shaft and elastically deformed to press the intermediate shaft, and which is disposed on one side of the bearing whose front surface is exposed to close the front surface of the bearing;
And a drive shaft for a vehicle. The method of claim 1,
The dust cover
An annular pressing portion that penetrates the inside and has an inner diameter smaller than the outer diameter of the intermediate shaft and is elastically deformed so as to flare outwardly when press fitted into the outer peripheral surface of the intermediate rod;
A cover portion extending from the pressing portion to close the front surface of the bearing,
And a drive shaft for a vehicle. 3. The method of claim 2,
The pressing portion
An engagement portion protruding toward the intermediate shaft is formed,
The intermediate shaft
And a seating groove on which the engaging portion is seated is formed. 4. The method of claim 3,
Wherein the engaging portion and the seating groove are formed in plural numbers. 4. The method of claim 3,
The pressing portion
Wherein a plurality of assembly grooves are formed at predetermined intervals along the longitudinal direction from the end portions and spaced apart at regular intervals along the periphery of the pressing portion. 4. The method of claim 3,
Wherein the engaging portion is rounded or chamfered. The method of claim 1,
Wherein the dust cover is covered or coated.
KR1020150117867A 2015-08-21 2015-08-21 Drive shaft for vehicle KR101934011B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150117867A KR101934011B1 (en) 2015-08-21 2015-08-21 Drive shaft for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150117867A KR101934011B1 (en) 2015-08-21 2015-08-21 Drive shaft for vehicle

Publications (2)

Publication Number Publication Date
KR20170022630A true KR20170022630A (en) 2017-03-02
KR101934011B1 KR101934011B1 (en) 2018-12-31

Family

ID=58426548

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150117867A KR101934011B1 (en) 2015-08-21 2015-08-21 Drive shaft for vehicle

Country Status (1)

Country Link
KR (1) KR101934011B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101964394B1 (en) * 2018-05-29 2019-07-31 주식회사 드림텍 Drive shaft for vehicle
WO2020167379A1 (en) * 2019-02-14 2020-08-20 Halliburton Energy Services, Inc. Fallback bearing protection system
KR102222500B1 (en) * 2020-03-02 2021-03-03 서한산업(주) Assembly of a dust cover and an wheel supporter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0120234Y1 (en) 1993-10-15 1998-07-15 전성원 Boot mounting structure of drive shaft for oehicle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006329276A (en) * 2005-05-24 2006-12-07 Showa Corp Propeller shaft supporting structure
JP2008110682A (en) * 2006-10-31 2008-05-15 Showa Corp Propeller shaft device
JP4960913B2 (en) * 2007-05-25 2012-06-27 日立オートモティブシステムズ株式会社 Propeller shaft and supporting device for the propeller shaft
JP6039439B2 (en) * 2013-01-21 2016-12-07 本田技研工業株式会社 Bearing structure

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0120234Y1 (en) 1993-10-15 1998-07-15 전성원 Boot mounting structure of drive shaft for oehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101964394B1 (en) * 2018-05-29 2019-07-31 주식회사 드림텍 Drive shaft for vehicle
WO2020167379A1 (en) * 2019-02-14 2020-08-20 Halliburton Energy Services, Inc. Fallback bearing protection system
US10961829B2 (en) 2019-02-14 2021-03-30 Halliburton Energy Services, Inc. Fallback bearing protection system
KR102222500B1 (en) * 2020-03-02 2021-03-03 서한산업(주) Assembly of a dust cover and an wheel supporter

Also Published As

Publication number Publication date
KR101934011B1 (en) 2018-12-31

Similar Documents

Publication Publication Date Title
JP2017207124A (en) Bearing device for wheel
JP5472890B2 (en) Planetary gear set including pinion shaft and carrier
KR101934011B1 (en) Drive shaft for vehicle
CN105864300B (en) Method for assembling a clamp around an outer ring of a bearing
JP2012251583A (en) Part fastening structure
US9657785B2 (en) Rolling bearing, notably for clutch release bearing device
US9546704B2 (en) Attachment structure for urging member
JP2007187308A (en) Bearing device for wheel
US9638255B2 (en) Rolling bearing, in particular for a declutch thrust device
JP2015014367A (en) Rolling bearing device in particular for steering column
KR20160026716A (en) Rolling bearing
JP7135543B2 (en) Manufacturing method of rolling bearing unit for wheel support
JP5142007B2 (en) Hub unit and hub unit manufacturing method
JP2008281099A (en) Center bearing support
JP4277558B2 (en) Mounting structure for rolling bearing shafts, stoppers
JP2015224746A (en) Rolling bearing device for wheel
JP2017125617A (en) Roller bearing
JP2022157357A5 (en)
WO2013015334A1 (en) Wheel bearing assembly device and assembly method therefor
US11298976B2 (en) Bearing device for vehicle wheel
JP2011122611A (en) Driving member and method of manufacturing driving member
US11796002B2 (en) Bearing arrangement for a machine element
US20210071763A1 (en) Sealing Device for Wheel Hub Assembly
JP2016098942A (en) Rolling bearing with seal device
JP2008232285A (en) Sealing device for rolling bearing

Legal Events

Date Code Title Description
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant