KR101672307B1 - Knuckle using laminated carbon fiber - Google Patents

Knuckle using laminated carbon fiber Download PDF

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Publication number
KR101672307B1
KR101672307B1 KR1020150053648A KR20150053648A KR101672307B1 KR 101672307 B1 KR101672307 B1 KR 101672307B1 KR 1020150053648 A KR1020150053648 A KR 1020150053648A KR 20150053648 A KR20150053648 A KR 20150053648A KR 101672307 B1 KR101672307 B1 KR 101672307B1
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KR
South Korea
Prior art keywords
outer frame
knuckle
reinforcing member
reinforcing
carbon fiber
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Application number
KR1020150053648A
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Korean (ko)
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KR20160123521A (en
Inventor
양정무
김진우
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한국철도공사
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Priority to KR1020150053648A priority Critical patent/KR101672307B1/en
Publication of KR20160123521A publication Critical patent/KR20160123521A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
    • B61F5/22—Guiding of the vehicle underframes with respect to the bogies
    • B61F5/24—Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/38—Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Springs (AREA)

Abstract

The present invention relates to a high-elastic knuckle using a carbon fiber laminated composite which is joined to the upper and lower portions of a rod constituting an anti-roll bar assembly installed between a railway car body and a truck frame, And a reinforcement body having a truncated conical shape and including an outer frame portion having a bottom of the truncated cone, an outer frame portion having a bottom surface of the truncated cone portion, a central shaft protruding from the upper surface of the outer frame portion in a cylindrical shape and a coupling hole penetrating through the center of the central shaft, A reinforcing portion formed by a pair of the reinforcing portions and the cushioning rubber, the reinforcing portion being formed by joining the center axes of the reinforcing portion and the reinforcing portion, And a plate which is fitted in the coupling hole. The plate- .

Description

{Knuckle using laminated carbon fiber}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a high-elastic knuckle using a carbon fiber laminated composite material, and more particularly to a knuckle of an anti-roll bar mounted to prevent a rolling phenomenon Elastic knuckle using a carbon fiber laminated composite material having an excellent elastic force as compared with a conventional knuckle by applying a high-elasticity carbon fiber laminate composite excellent in non-rigidity and non-rigidity.

In the case of a railway car, during the high-speed operation, there are three kinds of shaking phenomenon, namely, rolling of the vehicle body to the left and right, pitching to swing back and forth, and yawing to rotate around the vertical axis through the center of gravity An anti-roll bar device is installed between a railway car body and a cargo frame, and is a device for alleviating a rolling phenomenon in which a railway car body swings sideways relative to a cargo frame.

The anti-roll bar assembly includes a pair of arms 2 press-fitted into both ends of the anti-roll bar 1 as shown in Fig. 1, and a pair of arms 2, And a pair of rods 3 for connecting the two rods 3, respectively. Here, when a rolling phenomenon occurs in the body of the railway car, a load due to the rolling phenomenon is applied to the pair of arms 2 through the pair of rods 3, so that rotational force is applied to the antilock bar 1 . At this time, the pressing member inserted between the rod (3) and the arm (2) is elastically twisted and deformed to inhibit the rotation of the anti-roll bar, thereby alleviating the rolling phenomenon of the railway car body.

There are a number of prior art techniques for such anilor bar. Korean Patent Publication No. 2011-0010899 ("Antiloler bar device for railway cars ", 2011.02.08), which is one of those, is an anti-roll bar device for a railway car, It eliminates the noise generated between the support and the anti-roll bar and prevents corrosion of the anti-roll bar. As described above, various techniques have been introduced to improve the performance and durability of the anti-roll bar itself, but the technology of the knuckle 4 coupled to the lower portion of the rod 3 among the anti-roll bar devices has been introduced It is not. The knuckle 4 is used to connect a vehicle body and a bogie to prevent a rolling phenomenon occurring when the vehicle is running. The knuckle 4 is a precision component that directly affects ride comfort and safety of a high- A rigid knuckle based on a metal material and an elastic knuckle using a rubber material are generally used.

The rigid knuckle has a problem that the wear is generated and the fatigue is easily broken due to the dynamic load generated when the vehicle is operated. In the case of the elastic knuckle in which the rubber material is applied to the inside of the knuckle 4, There is a problem in that it is structurally weak. Further, since the knuckle 4 is a consumable part, the life of the knuckle is short, and the lubrication effect is rapidly lowered after a lapse of a predetermined time. Therefore, the knuckle 4 needs frequent replacement, which requires a high cost. In fact, the amount used for the purchase of metal knuckles by the Korea Railroad Corporation from 2009 to 2014 reached an annual average of 900 million won, which was a problem in the economics of metal knuckles.

Korean Patent Publication No. 2011-0010899 ("Antiloler Bar Device for Rail Vehicles ", 2011.02.08)

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 knuckle structure capable of individually moving each component constituting a knuckle in order to maximize the elasticity of a knuckle, And to provide a highly elastic knuckle using the carbon fiber laminated composite material having structural safety.

It is still another object of the present invention to provide a composite material for reinforcing a high strength carbon fiber laminate having excellent elasticity, non-rigidity and non-rigidity, To provide a highly elastic knuckle using a carbon fiber laminated composite capable of providing a carbon fiber composite material.

It is still another object of the present invention to provide a highly elastic knuckle using a carbon fiber laminated composite material capable of preventing abrasion of an iron barrel knuckle of a railway vehicle and preventing friction noise due to abrasion.

A high elastic knuckle using a carbon fiber laminated composite material bonded to the upper and lower portions of a rod constituting an anti-roll bar assembly installed between a railway vehicle body and a truck frame, A central shaft 120 protruding in a cylindrical shape in a bottom direction from the upper surface of the outer frame part 110 and a coupling hole formed in the center of the central shaft 120 A reinforcement member 100 including a reinforcing member 140 including a plurality of reinforcing members 140 and a pair of reinforcing members 140 coupled to each other such that the central axes 120 are connected to each other, A cushioning rubber 200 inserted in a form to wrap around the shaft 120, a cylindrical shape having the same center axis as the reinforcing part 100 and surrounding the reinforcing part 100 and the cushioning rubber 200 (300) and the coupling hole (130) It comprise a plate 400 coupled to the fitting.

Further, the reinforcing member 140 is made of a composite material in which carbon fibers are laminated.

Further, the thickness of the outer frame 110 increases from the upper surface to the lower surface.

The length from the bottom surface to the top surface of the outer frame 110 is shorter than the length from one side to the other side of the center shaft 120.

The reinforcing member 140 is formed on the outer structure 300 such that the reinforcing member 140 and the buffer rubber 200 are accommodated in the reinforcing member 140 and the portion where the buffering rubber 200 is in contact. And an engaging space 310 formed in the same shape as the buffer rubber 200.

The highly elastic knuckle using the carbon fiber laminated composite material according to the present invention having the above-described characteristics is configured such that the structures including the reinforcing portion, the buffer rubber, the outer structure, and the plate are individually formed, So that the dynamic load generated when the railway vehicle is operated can be canceled.

Further, each of the components can be separately manufactured and assembled, which facilitates replacement, maintenance and repair of parts.

In addition, the present invention has an effect of high elasticity, non-rigidity, and non-rigidity by applying the material constituting the inside of the knuckle as a carbon fiber laminated composite material.

Further, according to the present invention, the material constituting the inside of the knuckle can be prevented from being worn by applying the carbon fiber laminated composite material, and friction noise due to wear can be prevented.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of an anti-roll bar on which an embodiment according to the present invention is mounted.
2 is a perspective view of one embodiment of the present invention.
3 is a reinforcement section of an embodiment according to the present invention.
4 is a cushioning rubber according to an embodiment of the present invention.
5 is an exterior structure of an embodiment according to the present invention.

Since carbon fiber was invented by Edison at the end of the 19th century, it began to be used as non-intense and inelastic carbon fibers from the mid-20th century. Carbon fibers are extremely thin fibers with a thickness of 0.005 to 0.010 mm. Carbon atoms constituting the fiber are attached along the length of the fiber in the form of hexagonal ring crystals. Due to this molecular arrangement structure, ten times stronger Which is a strong physical property. Carbon fibers can be woven in a variety of patterns, and are often made of composite materials that are lightweight and strong, used with plastics and other materials. Since the density of carbon fiber is much lower than that of iron, it is about 5 times lighter than steel, making it suitable for use in products that require weight reduction. In addition, it can be used at high temperatures of 3,000 degrees Celsius, making it a popular material in the industry. The present invention relates to a high-elastic knuckle using such a carbon fiber laminated composite material.

Hereinafter, a highly elastic knuckle using the carbon fiber laminated composite according to the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 2, the highly elastic knuckle using the carbon fiber laminated composite material according to the present invention has a rod structure constituting an anti-roll bar assembly installed between the body of a railway vehicle and a truck frame, A reinforced portion 100, a buffer rubber 200, an outer structure 300, and a plate 400. The reinforced portion 100 is made of a carbon fiber-laminated composite material.

3 shows only the reinforcing part 100. As shown in FIG. 3, the reinforcing part 100 has a hollow truncated cone shape and includes an outer frame part 110 having a bottom of the truncated cone part, And a reinforcement body 140 including a center shaft 120 protruding in a cylindrical shape from the upper surface of the reinforcement member 110 and a coupling hole 130 formed at the center of the center shaft 120, (140) are coupled to each other in such a manner that the central axes (120) are connected to each other.

As shown in FIG. 3, the shape of the outer frame 110 and the center axis 120 is similar to that of an umbrella or mushroom. For this shape, the length from the bottom surface to the top surface of the truncated cone-shaped outer frame 110 should be shorter than the length from one side to the other side of the central axis 120. Here, the top surface is a surface with a narrow area on the truncated cone, and the bottom surface is a surface with a large surface facing the opposite side. The thickness of the outer frame 110 increases from the upper surface to the lower surface. The thickness of the outer frame 110 is different from that of the outer frame 110. The outer structure 300 will be described later in more detail when the outer frame 110 is thicker than when the outer frame 110 is coupled with the outer structure 300.

A coupling hole 130 formed through the center shaft 120 is configured to insert the plate 400. For this purpose, the coupling hole 130 is formed corresponding to the shape of the plate 400. In order to insert the plate 400, when the pair of reinforcing members 140 are engaged, the coupling hole 130 is fitted in a shape matching the shape.

A plurality of bolt holes for fastening bolts are formed around the coupling holes 130 in a direction in which the coupling holes 130 are formed. The bolt holes are inserted with bolts to couple the pair of reinforcement members 140 together. It is preferable to use a reamer bolt having a spiral formed only at the end of the shaft. The reamer bolt is a precision-machined bolt and is used for the purpose of preventing the abrasion, vibration and shortening of the life span of the present invention due to the surface which is brought into contact with the reamer bolt so that it is assembled to fit in the hole.

The reinforcing member 140 is made of a composite material in which carbon fibers are laminated. Since the carbon fiber is superior in tensile strength and elastic modulus to steel, the knuckle to which carbon fiber is applied has a longer life than the knuckle to which the metal is applied.

As shown in FIG. 4, the buffer rubber 200 is inserted in a ring shape so as to surround the center shaft 120. The buffer rubber 200 prevents direct contact between the outer structure 300 and the center shaft 120 and primarily damages deformation due to an external load. In addition to the rubber, the buffer rubber 200 may be formed of another material having elasticity.

2, the outer structure 300 has the same center axis as the reinforcing portion 100 and is provided to surround the reinforcing portion 100 and the buffer rubber 200, to be. The outer circumferential surface of the outer structure 300 abuts against the rod 3 when engaged with the anti-roll bar. The outer structure 300 serves to transmit an impact to the reinforcing part 100 and the buffer rubber 200 located inside, and is made of a rigid material.

5, the outer structure 300 may be formed so that the reinforcing member 140 and the buffer rubber 200 are accommodated in the portion where the reinforcing member 140 and the buffer rubber 200 are in contact with each other, And includes a reinforcing body 140 and an engaging space 310 formed in the same shape as the buffer rubber 200. In more detail, the outer structure 300 includes a coupling space 310 formed from an inner circumferential surface to an outer circumferential surface side so that a lower side of the outer frame 110 can be inserted. 5, the inner surface of the outer structure 300 is formed with a coupling space 310 in the form of the shape of the reinforcing member 140 and the buffer rubber 200. Since the thickness of the outer frame 110 increases from the upper surface to the lower surface, the engagement space 310 also widens to have the same thickness as the outer frame 110 as the corresponding depth increases. This is to make the coupling between the outer frame 110 and the coupling space 310 more rigid.

As shown in FIG. 2, the plate 400 is fitted into the coupling hole 130. The plate 400 penetrates through the coupling hole 130 and is fitted in a protruding shape on both sides. A part of the plate 400 protruding is connected to the arm 2 connected to the antilore bar or to the main body of the railway car and the fastening member.

The highly elastic knuckle using the carbon fiber laminated composite according to the present invention having all the above-mentioned configurations can slightly offset the respective constituents during the impact transmission, thereby canceling the dynamic load generated when the vehicle runs. In addition, the respective components can be separately manufactured and assembled, which facilitates replacement, maintenance, and repair of parts. Further, since the reinforcing portion 100 is made of carbon fiber and has excellent strength and elasticity, it has a longer life span than conventional knuckles, less wear and less friction noise, and thus, It is economical. When the present invention having the above-described configuration is mounted and the railway vehicle is driven, the replacement time is estimated to be about 2.5 million km as a mileage distance.

1: anilol bar 2: arm
3: Load 4: Knuckle
100: reinforcement portion 110: outer frame portion
120: center shaft 130:
140:
200: buffer rubber
300: outer structure 310: coupling space
400: plate

Claims (5)

A high elastic knuckle using a carbon fiber laminated composite joined to upper and lower portions of a rod constituting an anti-roll bar assembly installed between a railway car body and a truck frame,
A center shaft 120 protruding in a cylindrical shape in a bottom direction from the upper surface of the outer frame 110 and a center shaft 120 protruding from the upper surface of the outer frame 110 in the center of the center shaft 120, (100) comprising a reinforcing member (140) including a through hole (130), wherein a pair of the reinforcing members (140) are coupled to each other so that the central axes (120) are connected to each other;
A buffer rubber (200) inserted in a ring shape so as to surround the center shaft (120);
The reinforcing member 100 has the same center axis as the reinforcing member 100 and is provided to surround the reinforcing member 100 and the buffer rubber 200. When a pair of the reinforcing members 140 are coupled to each other, An annular outer structure 300 including an engaging space 310 formed from an inner circumferential surface to an outer circumferential surface side so that a lower side of the unit 110 can be inserted; And
A plate 400 fitted to the coupling hole 130;
, ≪ / RTI >
Wherein the reinforcing member (140) is made of a composite material in which carbon fibers are laminated.
delete The method of claim 1, wherein the thickness of the outer frame (110)
Wherein the reinforcing member is thicker from the upper surface to the lower surface.
2. The method of claim 1, wherein the length from the bottom surface to the top surface of the outer frame (110)
Is shorter than the length from one side to the other side of the central axis (120).
delete
KR1020150053648A 2015-04-16 2015-04-16 Knuckle using laminated carbon fiber KR101672307B1 (en)

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Application Number Priority Date Filing Date Title
KR1020150053648A KR101672307B1 (en) 2015-04-16 2015-04-16 Knuckle using laminated carbon fiber

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KR101672307B1 true KR101672307B1 (en) 2016-11-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101930733B1 (en) 2017-06-15 2019-03-11 김순화 elastic knuckle for anti-roll bar assembly

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102358317A (en) 2011-09-14 2012-02-22 南车株洲电力机车有限公司 Light rail vehicle and hinged steering frame thereof
JP2015034600A (en) 2013-08-09 2015-02-19 カヤバ工業株式会社 Damper mounting device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101031555B1 (en) 2009-07-27 2011-04-27 현대로템 주식회사 Anti-roll bar device for railway vehicle
KR20130022152A (en) * 2011-08-25 2013-03-06 현대자동차주식회사 Knuckle structure of hub-bearing unit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102358317A (en) 2011-09-14 2012-02-22 南车株洲电力机车有限公司 Light rail vehicle and hinged steering frame thereof
JP2015034600A (en) 2013-08-09 2015-02-19 カヤバ工業株式会社 Damper mounting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101930733B1 (en) 2017-06-15 2019-03-11 김순화 elastic knuckle for anti-roll bar assembly

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