WO2018097534A2 - Structure de guide de tige poussoir de chambre de frein de véhicule - Google Patents

Structure de guide de tige poussoir de chambre de frein de véhicule Download PDF

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Publication number
WO2018097534A2
WO2018097534A2 PCT/KR2017/012934 KR2017012934W WO2018097534A2 WO 2018097534 A2 WO2018097534 A2 WO 2018097534A2 KR 2017012934 W KR2017012934 W KR 2017012934W WO 2018097534 A2 WO2018097534 A2 WO 2018097534A2
Authority
WO
WIPO (PCT)
Prior art keywords
push rod
housing
pushrod
guide
bottom housing
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/KR2017/012934
Other languages
English (en)
Korean (ko)
Other versions
WO2018097534A3 (fr
Inventor
이승훈
명순식
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miraevc Co Ltd
Original Assignee
Miraevc Co Ltd
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 Miraevc Co Ltd filed Critical Miraevc Co Ltd
Publication of WO2018097534A2 publication Critical patent/WO2018097534A2/fr
Publication of WO2018097534A3 publication Critical patent/WO2018097534A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/02—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with mechanical assistance or drive
    • B60T13/04—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with mechanical assistance or drive by spring or weight
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/26—Compressed-air systems
    • B60T13/38—Brakes applied by springs or weights and released by compressed air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/42—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition having expanding chambers for controlling pressure, i.e. closed systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/42—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition having expanding chambers for controlling pressure, i.e. closed systems
    • B60T8/4208—Debooster systems
    • B60T8/4225—Debooster systems having a fluid actuated expansion unit
    • B60T8/4241—Debooster systems having a fluid actuated expansion unit pneumatically

Definitions

  • the present invention relates to a structure of a push rod guide of a vehicle brake chamber, and relates to a structure of a push rod guide of a vehicle brake chamber for guiding movement of a push rod moving up and down in a bottom housing.
  • the brake actuator of Korean Patent No. 10-1567709 has been disclosed for such a vehicle brake chamber.
  • the vehicle brake chamber includes a hollow head housing, an adapter housing, and a bottom housing sequentially from the top.
  • a piston disposed between the head housing and the adapter housing is disposed, and is provided with a hollow actuator rod coupled to the piston and disposed through the through hole of the adapter housing.
  • the diaframe is disposed between the adapter housing and the bottom housing.
  • a pressure plate for supporting the diaphragm and a push rod for supporting the pressure plate, the push rod is disposed through the through hole formed in the bottom housing.
  • the space formed between the head housing and the piston is a spring chamber, and a spring is disposed therebetween.
  • the space provided between the piston and the adapter housing is a pressure chamber.
  • the space formed between the adapter housing and the dia frame is a service chamber, and a push rod chamber is formed between the dia frame and the bottom housing.
  • the vehicle brake chamber constitutes a spring chamber, a pressure chamber, a service chamber, and a push rod chamber from the upper part to the lower part, and the bottom housing is moved up and down by adjusting the elastic force of the spring and the air pressure in the service chamber.
  • the push rod connected through the lower end of the vehicle may be moved to enable brake operation while driving or stopping the vehicle.
  • a push rod guide for guiding the movement of the push rod is disposed on the bottom surface of the bottom housing.
  • the push rod guides are produced separately from each other, and formed by engaging the push rod with a coupling member.
  • the fixing member has a problem that it is difficult to secure a firm fastening strength in the bottom housing, the fixing for assembling the coupling member may be added to reduce the production process.
  • An object of the present invention is to form a push rod guide integrally to simply fasten at the side of the push rod, the vehicle brake push rod guide that can be firmly fixed to the lower surface of the bottom housing using the push rod guide cover And the structure of the push rod guide.
  • the structure of the push rod guide of the brake chamber for a vehicle is provided between the head housing, the bottom housing and the head housing and the bottom housing adapter housing for connecting the head housing and the bottom housing, A diaphragm fixed between the adapter housing and the bottom housing to divide a space between the adapter housing and the bottom housing; A push rod supporting a lower surface of the dia frame and moving along a push rod through hole formed at a bottom of the bottom housing; A yoke portion connected to the push rod end; And a return spring disposed between the push rod and the bottom housing, and after the push rod and the yoke portion are inserted into the push rod through-hole, the push rod guide is assembled on the side of the push rod in the axial direction in the bottom housing.
  • a push rod guide a push rod opening is formed to be formed into a disc to push the rod in and out, the incision surface is formed in the radial direction from the center of the disc, the incision surface is in contact with each other to prevent slipping It is joined by forming a step, and the hinge groove is formed along the radial direction of the disc on the upper surface of the disc that is more than 120 degrees less than 180 degrees of the center of the disc from the incision surface to form a small fan shape and a large fan shape around the hinge groove, and a small fan shape And a large fan shape are rotated relative to the hinge groove and inserted from the side of the push rod axial direction and Silver sector and large sector are assembled by elastic restoration.
  • the push rod opening further includes a guide protrusion inserted into the push rod through hole to fix the push rod guide.
  • a cut surface is formed on the integrally formed push rod guide, and a step is formed on the formed cut surface so that the push rod can be firmly fastened without a separate coupling member. It is possible to maintain the fastening strength of the product in order to improve the production efficiency.
  • FIG. 1 is a view showing the configuration of a pneumatic spring brake chamber for a vehicle according to an embodiment of the present invention.
  • Figure 2 is an exploded perspective view of the push rod guide coupled to the bottom housing according to an embodiment of the present invention.
  • FIG 3 is a plan view of a push rod guide according to an embodiment of the present invention.
  • FIG. 4 is a side view illustrating a state in which a small fan of the push rod guide is rotated according to an embodiment of the present invention.
  • FIG. 1 is a view showing the configuration of a pneumatic spring brake chamber for a vehicle according to an embodiment of the present invention.
  • the vehicle pneumatic spring brake chamber includes a hollow actuator rod 120 and an actuator rod 120 in which air flow between the spring chamber 150 and the service chamber 310 is disposed between the spring chamber 150 and the service chamber 310. It is made through an actuator rod valve 121 coupled to the lower end.
  • the pneumatic spring brake chamber for a vehicle includes a head housing 100, an adapter housing 200, and a bottom housing 300 having a hollow shape in order from the top, and a piston 110 between the head housing 100 and the adapter housing 200. Is disposed, the diaphragm 400 is disposed between the adapter housing 200 and the bottom housing 300.
  • an actuator rod 120 having a through hole formed to penetrate the adapter housing 200 in a downward direction of the piston through hole formed in the piston 110 is disposed, and a rod valve 121 is disposed at an end of the actuator rod 120. Is placed.
  • the load valve 121 may allow the spring chamber 150 and the service chamber 310 to communicate with each other to allow air flow.
  • the piston 110 and the actuator rod 120 are formed separately but may be formed integrally with each other.
  • a spring chamber 150 is formed between the head housing 100 and the piston 110, and a pressure chamber 160 is formed between the piston 110 and the adapter housing 200.
  • the service chamber 310 is formed between the adapter housing 200 and the diaphragm 400, and the push rod chamber 320 is formed between the diaphragm 400 and the bottom housing 300.
  • Compression spring 130 disposed in the spring chamber 150 is a coil spring, the outer diameter of the coil may be smaller toward the both ends from the center of the coil. At this time, one end of the compression spring 130 is in contact with the piston 110 is supported, the other end of the compression spring 130 is in contact with the bent portion of the head housing 100 is supported.
  • the upper end of the head housing 100 is formed with a bent portion along the inside of the head housing 100, the bent portion prevents the compression spring 130 from moving in position from the top, so that the compression spring 130 is always constant Try to compress while keeping the axis.
  • the piston 110 is in close contact with the inside of the head housing 100 to separate the internal space of the head housing 100 into the spring chamber 150 and the pressure chamber 160.
  • the hollow actuator rod 120 is disposed in one direction along the piston through hole. Accordingly, one end of the actuator rod 120 may be connected to and supported by the piston 110, and the other end may be supported by the diaphragm 400 through the through hole of the adapter housing 200.
  • a lip seal 122 is disposed at a portion where the outer circumferential surface of the actuator rod 120 and the inner circumferential surface of the adapter housing 200 contact each other.
  • the casing bolt 140 Inside the hollow actuator rod 120, one end is fixed to the head housing through hole of the head housing 100, the casing bolt 140 and the other end is disposed along the penetration of the adapter housing 300, the other end of the casing bolt 140 The casing nut 142 is screwed to the arrangement.
  • An adapter housing 200 is disposed between the head housing 100 and the bottom housing 300 to interconnect the head housing 100 and the bottom housing 300.
  • the adapter housing 200 has a through hole in the center, and the actuator rod 120 is supported by contacting the diaphragm 400 through the through hole.
  • One side of the adapter housing 200 is provided with a valve structure 210 for introducing the air pressure may be introduced into the air during the parking brake operation in the driving phase of the vehicle.
  • a diaphragm 400 contacting and supported by the push rod plate 510 to divide the bottom housing 300 into the service chamber 310 and the push rod chamber 320 is disposed.
  • the push rod plate 510 is supported by the push rod 500, and serves to transfer the movement according to the air pressure of the diaphragm 400 to the push rod 500.
  • a push rod spring 520 is disposed between the push rod plate 510 and the bottom housing 300 along the axial direction of the push rod 500 to be compressed and restored according to the movement of the push rod plate 510.
  • the diaphragm 400 moves the push rod plate 510 and the push rod up and down according to the elastic force of the compression spring 130 in the spring chamber 150 and the air pressure control in the pressure chamber 160, and the push rod ( The operation of the brake (not shown) connected to the lower end of the 500 is controlled.
  • the bottom of the bottom housing 300 is provided with a push rod guide 600 for guiding the movement of the push rod 500 moving along the push rod through hole 330, the shape and push rod of the bottom housing 300 And the shape of the yoke can be formed in a variety of forms are not limited in the present invention, hereinafter will be described in detail with respect to the push rod guide 600.
  • Figure 2 is an exploded perspective view of the push rod guide coupled to the bottom housing according to an embodiment of the present invention
  • Figure 3 is a plan view of a push rod guide according to an embodiment of the present invention
  • Figure 4 according to an embodiment of the present invention It is a side view which shows the state which the small fan shape of the push rod guide rotated.
  • a push rod guide according to an embodiment of the present invention will be described in more detail with reference to FIGS. 2 to 4.
  • the push rod 500 has a yoke portion 530 at an end thereof and is inserted into the push rod through hole 330. Since the yoke part 530 has a larger diameter than the push rod 500, when the push rod 500 is inserted into the push rod through hole 330, the outer circumferential surface of the push rod 500 and the push rod through hole 330 are used. A gap is formed between the).
  • the push rod guide 600 guides the movement of the push rod 500 while sealing the gap, and is formed in a circular plate shape to form a push rod opening 650 through which the push rod can enter and exit.
  • the push rod guide 600 is fixed to the bottom surface of the bottom housing 300 while surrounding the outer circumferential surface of the push rod 500 inserted along the push rod through hole 330 to guide the movement of the push rod 500. Play a role.
  • the push rod guide 600 is formed with a cut surface 610 toward the radial direction from the center of the disc.
  • the hinge groove 640 is formed along the radial direction of the disc on the upper surface of the disc so as to be less than 120 degrees or less than 180 degrees from the incision surface 610, a small fan 620 and a large fan shape around the hinge groove 640.
  • 630 is formed.
  • the hinge groove 640 is formed as a groove having a “V” shape, and serves as a hinge through a drive in which the “V” shape groove is folded. Therefore, the small fan 620 and the large fan 630 may be rotated relative to the hinge groove 640 in the direction of the arrow.
  • the push rod guide 600 is inserted from the axial side of the push rod 500 in a state in which the small sector 620 and the large sector 630 are rotated relative to each other, and the small sector 620 and the large sector 630 are hinged.
  • the elastic restoration around the groove 640 can be easily assembled to the push rod 500.
  • the push rod guide 600 is fixed to the bottom surface of the bottom housing 300 can simply serve to guide the movement of the push rod 500.
  • the small fan 620 and the large fan 630 is formed with steps 621, 631 so as to prevent slipping on the surfaces in contact with each other.
  • Steps 621 and 631 increase the shear resistance of the surface where the small fan 620 and the large fan 630 are in contact with each other, so that the cut surfaces 610 of the push rod guide 600 are separated from each other. You can prevent it.
  • the steps 621 and 631 may further include protrusions 622 and 632 and protrusion grooves 623 and 633 coupled to the protrusions 622 and 632, respectively.
  • the protrusions 622 and 632 and the protrusion grooves 623 and 633 increase the shear resistance of the incision surface 610 to prevent the incision surface 610 from being separated, thereby maintaining a firm fastening of the push rod guide 600. You can.
  • the push rod guide 600 may include a guide protrusion 660 inserted into and fixed to the push rod through hole 330 in a downward direction of the push rod opening 650.
  • the guide protrusion 660 serves to firmly fix the push rod guide 600 to the bottom surface of the bottom housing 300 so as not to move.
  • the push rod guide 600 may further include a fixing blade 670 protruding in the radial direction at least 90 degrees apart on the outer circumferential surface.
  • the outer circumferential surface of the fixed blade portion 670 is fixed to the return spring 520 serves to fix the push rod guide 600 on the lower surface of the bottom housing 300.
  • the push rod guide 600 can be assembled by simply fitting in the side of the push rod 500 by allowing the small fan 620 and the large fan 630 to rotate around the hinge groove 640. It has a characteristic.
  • the coupling surface of the small fan 610 and the large fan 620 has a feature that can maintain the fastening strength by preventing the incision surface 610 is formed to be separated by a step.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Braking Arrangements (AREA)

Abstract

La présente invention concerne un guide de tige poussoir d'une chambre de frein de véhicule. Le guide de tige poussoir prend la forme d'une plaque circulaire, et à l'intérieur de celui-ci sont formées : une ouverture de tige poussoir par laquelle entre et sort la tige poussoir ; et des surfaces d'incision qui s'étendent dans la direction radiale à partir du centre de la plaque circulaire. Les surfaces d'incision sont accouplées l'une à l'autre tout en formant un pas de sorte à empêcher un glissement entre les surfaces en contact l'une avec l'autre. Des rainures de charnière sont formées, sur la surface supérieure de la plaque circulaire, le long de la direction radiale de la plaque circulaire d'au moins 120° à moins de 180° autour du centre de la plaque circulaire en partant de la surface d'incision. Une petite forme de ventilateur et une grande forme de ventilateur sont formées autour des rainures de charnière, et la petite forme de ventilateur tourne par rapport à la grande forme de ventilateur autour de la rainure de charnière, étant ainsi insérée dans la surface latérale de la tige poussoir dans la direction axiale, et la rainure de charnière est restaurée élastiquement et ainsi assemblée. Selon la présente invention, étant donné que la surface d'incision est formée sur le guide de tige poussoir formé d'un seul tenant, et que la partie étagée est formée dans la surface d'incision formée pour permettre une fixation ferme de la tige poussoir, une force de fixation ferme peut être maintenue pour la tige poussoir sans élément d'accouplement supplémentaire, et ainsi l'efficacité de production de la tige poussoir peut être améliorée.
PCT/KR2017/012934 2016-11-23 2017-11-15 Structure de guide de tige poussoir de chambre de frein de véhicule Ceased WO2018097534A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020160156365A KR20180057910A (ko) 2016-11-23 2016-11-23 차량용 브레이크 챔버의 푸시로드 가이드의 구조
KR10-2016-0156365 2016-11-23

Publications (2)

Publication Number Publication Date
WO2018097534A2 true WO2018097534A2 (fr) 2018-05-31
WO2018097534A3 WO2018097534A3 (fr) 2018-08-09

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ID=62195261

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2017/012934 Ceased WO2018097534A2 (fr) 2016-11-23 2017-11-15 Structure de guide de tige poussoir de chambre de frein de véhicule

Country Status (2)

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KR (1) KR20180057910A (fr)
WO (1) WO2018097534A2 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6029447A (en) * 1995-02-21 2000-02-29 Stojic; Steven M. Spring brake actuator with filtered vent openings
US6729224B1 (en) * 1999-06-07 2004-05-04 Haldex Brake Corporation Service brake actuator having a unitary pushrod assembly with a bushing therefor
AU2000278521A1 (en) * 2000-03-15 2001-09-24 Holland Neway International, Inc. Sealed brake actuator
KR101326487B1 (ko) * 2011-11-22 2013-11-08 현대자동차주식회사 파킹용 에어 브레이크 장치
KR101567709B1 (ko) * 2014-07-11 2015-11-10 (주)지앤피오토모티브 브레이크 액추에이터

Also Published As

Publication number Publication date
WO2018097534A3 (fr) 2018-08-09
KR20180057910A (ko) 2018-05-31

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