KR20110038505A - Center bearing bush unit for propeller shaft - Google Patents

Center bearing bush unit for propeller shaft Download PDF

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Publication number
KR20110038505A
KR20110038505A KR1020090095821A KR20090095821A KR20110038505A KR 20110038505 A KR20110038505 A KR 20110038505A KR 1020090095821 A KR1020090095821 A KR 1020090095821A KR 20090095821 A KR20090095821 A KR 20090095821A KR 20110038505 A KR20110038505 A KR 20110038505A
Authority
KR
South Korea
Prior art keywords
propeller shaft
center bearing
protrusion
bush
bush body
Prior art date
Application number
KR1020090095821A
Other languages
Korean (ko)
Inventor
이중욱
Original Assignee
현대자동차주식회사
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 현대자동차주식회사 filed Critical 현대자동차주식회사
Priority to KR1020090095821A priority Critical patent/KR20110038505A/en
Publication of KR20110038505A publication Critical patent/KR20110038505A/en

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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
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/12—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
    • F16C17/24—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety
    • 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
    • F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
    • F16C27/06—Elastic or yielding bearings or bearing supports, for exclusively rotary movement by means of parts of rubber or like materials
    • F16C27/063—Sliding contact bearings
    • 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
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/06—Drive shafts

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Support Of The Bearing (AREA)
  • Motor Power Transmission Devices (AREA)

Abstract

The present invention provides a bushing body formed by integrally forming a protrusion, a deformation guide groove, and a rib stopper between a center bearing mounted on a propeller shaft and a mounting bracket for fixing the center bearing to a vehicle frame while the center bearing is wrapped. To reduce the flow of urine and displacement in the propeller shafts

Between a center bearing mounted on the front propeller shaft to support the propeller shaft, which consists of the front and rear propeller shafts interconnected by universal joints, to the body frame, and a mounting bracket that secures the center bearing to the body frame with the center bearing wrapped A center bearing bush unit for propeller shaft to insulate the vibration of the propeller shaft, the bush body having an inner circumferential surface bonded to an outer circumferential surface of the center bearing and an outer circumferential surface bonded to an inner circumferential surface of the mounting bracket; A protrusion formed to protrude along a circumference of one surface of the bush body facing the front propeller shaft side; First deformation guide grooves formed between inner and outer circumferential surfaces of the bush body at both sides of the protrusion; A second deformation guide groove formed in the protrusion part at the other surface of the bush body facing the rear propeller shaft side corresponding to the protrusion part; And a rib stopper protruding integrally from the inside of the protrusion toward the other surface of the bush body at the center of the inner surface of the second deforming guide groove.

Propeller shaft, center bearing, bush unit

Description

Center Bearing Bush Unit for Propeller Shaft {CENTER BEARING BUSH UNIT FOR PROPELLER SHAFT}

The present invention relates to a center bearing bushing unit of a propeller shaft for a vehicle, and more particularly, a vehicle running between a center bearing mounted on a propeller shaft and a mounting bracket fixed to a body frame with the center bearing wrapped. It relates to a center bearing bush unit for the propeller shaft to reduce the large displacement and the urine flow of the propeller shaft due to the vibration generated during.

In general, the rear wheel drive 2WD vehicle, unlike the 4WD vehicle, is composed of two propeller shafts due to the unique characteristics of the rear wheel drive, and is a power transmission shaft connecting the driving force of the engine to the rear axle.

As shown in FIG. 1, the power transmission system of the rear wheel drive 2WD vehicle includes a propeller shaft 110 including an engine 101, a transmission 103, and a rear axle 105 having front and rear propeller shafts 107 and 109. The driving force is transmitted by connecting

Here, the center bearing 111 is mounted to the vehicle body frame 115 through the mounting bracket 113 on the front propeller shaft 107 to support the propeller shafts 107 and 109 in rotation. The front and rear propellers Each end of the shafts 107 and 109 is connected to the universal joint UT to compensate for the deviation of the rotation center axis of the engine 101 and the transmission 103 and the rear axle 105.

Here, between the center bearing 111 and the mounting bracket 113, as shown in Figure 2, the center bearing bush unit 120 for reducing the flow and vibration of the propeller shaft 110 is mounted.

However, according to the related art, the center bearing bush unit 120 for the propeller shaft reduces the flow amount of the propeller shaft 110 between the center bearing 111 and the mounting bracket 113, and attenuates vibration, and at the same time. Mounted to prevent friction between the bearing 111 and the mounting bracket 113, made of a rubber material of a simple shape effectively prevents the flow and vibration of the propeller shaft 110 due to the urine position and the large displacement generated during the driving of the vehicle There is a problem that can not be absorbed.

In particular, when a large displacement flow occurs in the propeller shaft 110 during the start and rapid acceleration of the vehicle, the center bearing bush unit 120 does not effectively reduce the flow amount of the propeller shaft 110, and thus the flow of the propeller shaft 110 is reduced. As it is transmitted to the vehicle body as it is, vibration is generated in the vehicle body, and noise is generated by the vibration, thereby lowering the ride comfort of the vehicle, and increasing the fatigue of the center bearing bush unit 120 itself, thereby causing problems such as durability. Doing.

Therefore, the present invention has been invented to solve the above problems, an object of the present invention is a projection between the center bearing mounted on the propeller shaft, and a mounting bracket for fixing the center bearing to the vehicle body frame wrapped, It is to provide a center bearing bush unit for the propeller shaft to reduce the urine and large displacement flow of the propeller shaft generated during vehicle travel by mounting the deformation guide groove and the bush body formed integrally with the rib stopper. .

The center bearing bush unit for the propeller shaft according to the embodiment of the present invention for achieving this object is mounted on the front propeller shaft to support the propeller shaft, which consists of the front and rear propeller shafts interconnected by the universal joint, to the body frame. A center bearing bush unit for a propeller shaft, which is formed between a center bearing and a mounting bracket for fixing the center bearing to a vehicle body frame and insulates vibration of the propeller shaft, wherein an inner circumferential surface is bonded to an outer circumferential surface of the center bearing. A bush body having an outer circumferential surface bonded to the inner circumferential surface of the mounting bracket; A protrusion formed to protrude along a circumference of one surface of the bush body facing the front propeller shaft side; First deformation guide grooves formed between inner and outer circumferential surfaces of the bush body at both sides of the protrusion; A second deformation guide groove formed in the protrusion part at the other surface of the bush body facing the rear propeller shaft side corresponding to the protrusion part; And a rib stopper integrally protruding from the inside of the protruding portion toward the other surface of the bush body at the center of the inner surface of the second deformation guide groove.

The protrusion is characterized in that the cross-sectional shape is formed to gradually increase in the length of both sides from one surface of the bush body to the other surface.

The rib stopper is formed in a cylindrical shape integrally along the circumference of the bush body, the cross-sectional shape is characterized in that the rectangular shape.

The second deformed flow groove is formed to be spaced apart along the circumference of the bush body with the rib stopper therebetween, and is inclined toward the inner and outer circumferential sides of the bush body with respect to both sides of the rib stopper in the longitudinal direction of the cross section. , The width length is narrowed toward the inside of the protrusion.

According to the center bearing bush unit for the propeller shaft according to the embodiment of the present invention as described above, by mounting a bush body formed by integrally forming a projection, each deformation guide groove, and a rib stopper between the center bearing and the mounting bracket. In addition, the urine flow generated in the propeller shaft while driving the vehicle is absorbed through each deformation guide groove to maximize the vibration insulation performance, and the large displacement flow generated in the propeller shaft according to the starting or rapid acceleration of the vehicle causes the flow through the rib stopper. By minimizing, there is an effect of preventing abnormal vibration of the propeller shaft.

In addition, the center bearing bush unit for the propeller shaft according to the embodiment of the present invention effectively reduces the flow amount of the propeller shaft through the protrusion, each deformation guide groove, and the rib stopper, and insulates the vibration to reduce the fatigue of the bush body It also has the effect of improving the overall durability.

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

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory only and are not restrictive of the invention, It should be understood that various equivalents and modifications may be present.

3 is a partial perspective view of a propeller shaft to which a center bearing bush unit for a propeller shaft according to an embodiment of the present invention is applied, and FIG. 4 is a partial cross-sectional view of the center bearing bush unit for a propeller shaft according to an embodiment of the present invention; 5 is a cross-sectional view of the center bearing bushing unit for the propeller shaft according to the embodiment of the present invention in a view along the line AA of FIG.

Referring to the drawings, the center bearing bushing unit 10 for the propeller shaft according to the exemplary embodiment of the present invention includes a center bearing 7 mounted on the propeller shaft 1 and a vehicle body with the center bearing 7 wrapped. Bush body 11 formed by integrally forming protrusions 13, first and second deformation guide grooves 15 and 17, and rib stopper 19 between mounting brackets 9 fixed to frame 8. By reducing the urine and displacement displacement of the propeller shaft (1) generated while driving the vehicle.

To this end, the center bearing bush unit 10 according to the embodiment of the present invention, as shown in Figure 3, a propeller composed of a front and rear propeller shaft (3, 5) interconnected by a universal joint (UJ) A center bearing 7 mounted on the front propeller shaft 3 to support the shaft 1 to the body frame 8, and a mounting bracket for fixing the center bearing 7 to the body frame 8 with the center bearing 7 wrapped; It is comprised between (9).

The center bearing bush unit 10 for the propeller shaft according to the embodiment of the present invention, as shown in Figs. 4 and 5, the bush body 11, the protrusion 13, the first, second deformation guide groove ( 15, 17) and the rib stopper 19, which will be described in more detail for each component as follows.

First, the bush body 11 is bonded to the inner peripheral surface of the center bearing 7, the outer peripheral surface is bonded to the inner peripheral surface of the mounting bracket (9).

The bush body 11 is formed in a cylindrical shape, the material is preferably made of a rubber material.

The protruding portion 13 is formed to protrude along a circumference on one surface of the bush body 11 facing the front propeller shaft 1 side.

Here, the protruding portion 13 is formed in such a way that the length of both sides gradually increases from one surface of the bush body 11 to the other surface, and the cross-sectional shape is preferably formed in a trapezoidal shape.

In the present embodiment, the first deformation guide groove 15 is formed between the inner circumferential surface and the outer circumferential surface of the bush body 11 at both sides of the protrusion 13.

Each of the first deformation guide grooves 15 is formed to be inclined according to the cross-sectional shape of the protrusion 13 on the inner and outer circumferential surfaces of the bush body 11.

That is, it is preferable that each of the first deformation guide grooves 15 is formed to gradually decrease in width by the protrusions 13 from one surface of the bush body 11 to the other surface.

Here, when the large displacement flow is generated from the propeller shaft 1, the protrusion 13 is changed in contact with each of the first deformation guide groove 15, thereby canceling the large displacement flow, One deformation guide groove 15 is to function to absorb and insulate the vibration when the vibration caused by the flow on the urine of the propeller shaft (1).

In the present embodiment, the second deformed guide groove 17 is formed into the inside of the protrusion 13 at the other surface of the bush body 11 facing the rear propeller shaft 5 side corresponding to the protrusion 13. do.

In addition, the rib stopper 19 is integrally formed toward the other surface of the bush body 11 from the inside of the protrusion 13 at the center of the inner surface of the second deformed guide groove 17.

Here, the rib stopper 19 is formed in a cylindrical shape integrally along the circumference of the bush body 11, the cross-sectional shape is preferably formed in a square shape.

On the other hand, the second deformed flow groove 17 is formed to be spaced apart along the circumference of the bush body 11 with the rib stopper 19 therebetween.

Each of the second deformation guide grooves 17 is formed to be inclined toward the inner and outer circumferential sides of the bush body 11 with respect to both sides of the rib stopper 19 in the longitudinal direction of the cross section, and the width of the protrusion 13 is wide. It is preferable to narrow toward the inside of.

That is, the rib stopper 19 separates the second deformation guide groove 17 into two, and together with the protrusion 13, a large displacement of the propeller shaft 1 according to the rapid start or rapid acceleration of the vehicle. When the flow is generated, by increasing the characteristics while contacting each of the first and second deformation flow grooves (15, 17), the flow amount is reduced, and the abnormal vibration of the propeller shaft (1) is insulated.

Each of the first and second deformed guide grooves 15 and 17 effectively absorbs the vibration of the urine generated from the propeller shaft 1 while the vehicle is running without contacting the protrusion 13 and the rib stopper 19. The vibration of the propeller shaft 1 is insulated.

Therefore, when applying the center bearing bush unit 10 for the propeller shaft according to the embodiment of the present invention configured as described above, the projection 13, the first, between the center bearing (7) and the mounting bracket (9) By mounting the bush body 11 formed by integrally forming the second deformed guide grooves 15 and 17 and the rib stopper 19, the urine flow generated in the propeller shaft 1 while driving the vehicle is deformed by each deformation. Absorption through the guide grooves 15 and 17 maximizes the vibration insulation performance, and the large displacement flow generated in the propeller shaft 1 according to the start or rapid acceleration of the vehicle flows through the protrusion 13 and the rib stopper 19. By minimizing the vibration of the propeller shaft (1) can be prevented.

In addition, the center bearing bush unit 10 for the propeller shaft according to the embodiment of the present invention is effectively propeller shaft (1) through the projection 13, each deformation guide groove (15, 17), and rib stopper (19) By reducing the flow amount of the lowering of the vibration to reduce the fatigue of the bush body 11, it is possible to improve the overall durability of the center bearing bush unit 10.

As mentioned above, although this invention was demonstrated by the limited embodiment and drawing, this invention is not limited by this and is given by the person of ordinary skill in the art to the following, Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

1 is a block diagram of a general rear wheel drive power transmission system.

2 is a partial cross-sectional view of a center bearing bush unit for a propeller shaft according to the prior art.

3 is a partial perspective view of a propeller shaft to which a center bearing bush unit for a propeller shaft according to an embodiment of the present invention is applied.

4 is a partial cross-sectional view of a center bearing bush unit for a propeller shaft according to an embodiment of the present invention.

5 is a cross-sectional view of the center bearing bush unit for the propeller shaft according to the embodiment of the present invention.

Claims (4)

Between a center bearing mounted on the front propeller shaft to support the propeller shaft, which consists of the front and rear propeller shafts interconnected by the universal joint, to the body frame, and a mounting bracket which is fixed to the body frame with the center bearing wrapped. In the center bearing bush unit for the propeller shaft to insulate the vibration of the propeller shaft, A bush body having an inner circumferential surface bonded to an outer circumferential surface of the center bearing, and an outer circumferential surface bonded to an inner circumferential surface of the mounting bracket; A protrusion formed to protrude along a circumference of one surface of the bush body facing the front propeller shaft side; First deformation guide grooves formed between inner and outer circumferential surfaces of the bush body at both sides of the protrusion; A second deformation guide groove formed in the protrusion part at the other surface of the bush body facing the rear propeller shaft side corresponding to the protrusion part; And And a rib stopper integrally protruding from the inside of the protrusion toward the other surface of the bush body at the center of the inner surface of the second deformed guide groove. The method of claim 1, The protruding portion is a center bearing bush unit for a propeller shaft, characterized in that the cross-sectional shape is gradually increased in length from one side of the bush body toward the other surface. The method of claim 1, The rib stopper has a cylindrical shape integrally formed along the circumference of the bush body, the center bearing bush unit for the propeller shaft, characterized in that the cross-sectional shape is formed in a square shape. The method of claim 1, The second deformed flow groove is formed to be spaced apart along the circumference of the bush body with the rib stopper therebetween, and is inclined toward the inner and outer circumferential sides of the bush body with respect to both sides of the rib stopper in the longitudinal direction of the cross section. The center bearing bush unit for the propeller shaft, characterized in that the width length is narrowed toward the inside of the protrusion.
KR1020090095821A 2009-10-08 2009-10-08 Center bearing bush unit for propeller shaft KR20110038505A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020090095821A KR20110038505A (en) 2009-10-08 2009-10-08 Center bearing bush unit for propeller shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090095821A KR20110038505A (en) 2009-10-08 2009-10-08 Center bearing bush unit for propeller shaft

Publications (1)

Publication Number Publication Date
KR20110038505A true KR20110038505A (en) 2011-04-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020090095821A KR20110038505A (en) 2009-10-08 2009-10-08 Center bearing bush unit for propeller shaft

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101417643B1 (en) * 2012-12-31 2014-07-09 현대자동차주식회사 Center bearing bush unit for propeller shaft

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101417643B1 (en) * 2012-12-31 2014-07-09 현대자동차주식회사 Center bearing bush unit for propeller shaft
DE102013109583B4 (en) * 2012-12-31 2020-10-22 Hyundai Motor Company Central bearing bush unit for a drive shaft

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