EP0587623B1 - Klotzbremseinheit für schienenfahrzeuge - Google Patents

Klotzbremseinheit für schienenfahrzeuge Download PDF

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Publication number
EP0587623B1
EP0587623B1 EP92910905A EP92910905A EP0587623B1 EP 0587623 B1 EP0587623 B1 EP 0587623B1 EP 92910905 A EP92910905 A EP 92910905A EP 92910905 A EP92910905 A EP 92910905A EP 0587623 B1 EP0587623 B1 EP 0587623B1
Authority
EP
European Patent Office
Prior art keywords
brake
rod
push
head
holder
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.)
Expired - Lifetime
Application number
EP92910905A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0587623A1 (de
Inventor
Erich Fuderer
Albert Kerscher
Josef Staltmeir
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.)
Knorr Bremse AG
Original Assignee
Knorr Bremse AG
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 Knorr Bremse AG filed Critical Knorr Bremse AG
Publication of EP0587623A1 publication Critical patent/EP0587623A1/de
Application granted granted Critical
Publication of EP0587623B1 publication Critical patent/EP0587623B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H15/00—Wear-compensating mechanisms, e.g. slack adjusters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H1/00—Applications or arrangements of brakes with a braking member or members co-operating with the periphery of the wheel rim, a drum or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H1/00—Applications or arrangements of brakes with a braking member or members co-operating with the periphery of the wheel rim, a drum or the like
    • B61H1/003—Applications or arrangements of brakes with a braking member or members co-operating with the periphery of the wheel rim, a drum or the like with an actuator directly acting on a brake head

Definitions

  • the invention relates to a block brake unit for rail vehicles, with a push rod designed as a threaded spindle of a play adjusting device, the end of which forms a rod head, via a connecting device having spherical surfaces, is coupled in a pressure-transmitting manner to a brake block holder movable in a transverse plane to the push rod, with the push rod being non-rotatable about its longitudinal direction
  • Connecting device has a cross bolt, the two projecting ends of which engage in horizontal grooves.
  • Such a block brake unit is known from EP-B-0 010 816.
  • the known connecting device on the rod head of the push rod has a blind bore with a hemispherical bore base into which the corresponding spherical, rear end of a rod-shaped transmission part intervenes.
  • the transmission part is provided with a pressure plate which has a spherical surface on the front, the radius of which is substantially larger than that of the spherical surface at the rear end; both spherical surfaces have a common sphere center.
  • the pressure plate lies with its spherical surface on a flat surface of the brake pad holder, to exclude lateral displacements, the brake pad holder is provided on both sides of the pressure plate with a rearward projecting, vertical web.
  • the transmission part can be penetrated near its rear end by a cross bolt, the projecting ends of which are guided in horizontal grooves on the rod head; furthermore, for this purpose the pressure plate can have lateral flats which are guided on the webs of the brake block holder and thus non-rotatably couple the transmission part to the brake block holder which is also rotatably guided by the pendulum guide.
  • the push rod has a ball head as a rod head, which is mounted in a corresponding spherical bearing recess of the brake pad holder, and in that the ball head is penetrated in the center by the transverse bolt which extends transversely to the push rod and has projecting ends engage in the horizontal grooves on the side of the bearing recess in the brake block holder.
  • the block brake unit according to FIG. 1 has a brake motor with transmission gear, which are arranged in a housing 1 which is only partially shown and which can be designed, for example, in accordance with one of the prior art mentioned at the outset or in another known manner.
  • a push rod 2 designed as a threaded spindle protrudes forward from the play adjusting device, which is likewise accommodated in the housing 1, and carries a ball head 3 at its front end as a rod head.
  • the ball head 3 is mounted in a corresponding spherical bearing recess 4 of a brake block holder 6 provided with brake blocks 5.
  • FIG. 1 has a brake motor with transmission gear, which are arranged in a housing 1 which is only partially shown and which can be designed, for example, in accordance with one of the prior art mentioned at the outset or in another known manner.
  • a push rod 2 designed as a threaded spindle protrudes forward from the play adjusting device, which is likewise accommodated in the housing 1, and carries a ball head 3
  • the bearing recess 4 is designed in the manner of a blind bore 7 with a hemispherical bottom of the bore in the brake pad holder 6.
  • the blind bore 7 is partially covered by a bearing ring 8, which, in a manner not shown, for example by a screw connection, is fixedly but releasably attached to the brake pad holder 6.
  • the bearing ring 8 is, based on the blind bore 7, provided on the inside with a spherical zone-shaped inner surface 9, this inner surface 9 and the hemispherical bore bottom of the blind bore 7 have one common center point 10; the center of the ball of the ball head 3 is also located in the center of the ball 10.
  • a sealing ring 11 is inserted into the inner surface 9 of the bearing ring 8, which cooperates with the ball head 3 and prevents dirt from penetrating into the blind bore 7.
  • the ball head 3 is penetrated in the middle by a horizontal cross bolt 12 which extends transversely to the push rod 2 and which projects with its two ends 13 from the ball head 3 and engages in horizontal grooves 14 of the brake block holder 6 which adjoin the blind bore 7 laterally; the housing-side ends of the horizontal grooves 14 are overlapped by the bearing ring 8 and covered so as to be contamination-proof.
  • the cross pin 12 is rotatably supported in the ball head 3 about its axis.
  • the ends 13 are flattened parallel to the horizontal grooves 14 to ensure a flat contact, in the exemplary embodiment the ends 13 are designed as a square.
  • the push rod 2 carrying the ball head 3 engages with a shaft part 15 with radial clearance 16 through the bearing ring 8, which in this area has an opening section 17 that widens conically towards the housing 1 in this connection to the inner surface 9.
  • the shaft part 15 is tapered towards the ball head 3, it is essential that it has a smaller diameter than the push rod 2 in the region of the passage through the bearing ring 8.
  • Fig. 1 it can be seen that the brake block holder 6 is suspended and guided in the usual way by means of a pendulum lever 18 on the housing 1, during braking and releasing processes the brake block holder 6 thus experiences a circular path lying in a vertical plane around the upper articulation point of the pendulum lever 18 forward and backward movements.
  • the brake pad holder 6 can experience horizontal displacements at right angles to the plane of the drawing in FIG. 1, and the pendulum lever 18 can be correspondingly displaceably mounted or elastically deflectable.
  • housing 20 As housing 20, they have an outer ring body designed as a hexagon, within which end faces 21 formed with radial splines or saw teeth a part 22 and the shaft part 15 firmly connected to the push rod 2 abut each other.
  • the housing 20 is secured by means of a locking ring 23 against axial displacements relative to the push rod 2 in the direction of the brake pad holder 6, between an inner shoulder 24 of the housing 20 and an inner shoulder 25 of the shaft part 15, a compression spring 26 is clamped, which loads the end faces 21 in the mutual pressing direction.
  • the housing 20 is connected in a rotationally fixed manner to the part 22 and thus to the push rod 2 by means of a screw connection or axial toothing 27.
  • a pin extension 28 of the push rod 2 is rotatably mounted in a corresponding axial blind bore 29 of the shaft part 15. It is thus possible, with the ball head 3 and shaft part 15 held non-rotatably by the outer bolt 12, by arbitrarily rotating the housing 20, for example by means of a wrench, while disengaging the toothing of the end faces 21 through the inclined surfaces thereof against the force of the compression spring 26 via the part 22 Turn push rod 2 and screw back the lash adjuster.
  • the push rod (2) which is designed as a threaded spindle of a play adjusting device, is mounted in a corresponding bearing recess (4) of the brake block holder (6) by means of a ball head (3).
  • a ball head (3) This enables the push rod (2) to be deflected relative to the brake block holder (6) without constraint on all sides with constant pressure force transmission, so that the push rod linkage on the brake block holder (6) means that no bending or transverse forces can be introduced into the push rod (2).
  • the ball head (3) is penetrated by a transverse bolt (12), the projecting ends of which are guided in horizontal grooves (14) of the brake pad holder (6) in order to hold the push rod (2) about its longitudinal direction.
  • a rotary coupling that transmits pressure force and only disengages when a certain limit torque is exceeded can be arranged, which enables manual resetting of the game adjustment device by rotating the push rod.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Braking Systems And Boosters (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
EP92910905A 1991-06-12 1992-05-26 Klotzbremseinheit für schienenfahrzeuge Expired - Lifetime EP0587623B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4119391A DE4119391A1 (de) 1991-06-12 1991-06-12 Klotzbremseinheit fuer schienenfahrzeuge
DE4119391 1991-06-12
PCT/DE1992/000451 WO1992022453A1 (de) 1991-06-12 1992-05-26 Klotzbremseinheit für schienenfahrzeuge

Publications (2)

Publication Number Publication Date
EP0587623A1 EP0587623A1 (de) 1994-03-23
EP0587623B1 true EP0587623B1 (de) 1994-12-14

Family

ID=6433783

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92910905A Expired - Lifetime EP0587623B1 (de) 1991-06-12 1992-05-26 Klotzbremseinheit für schienenfahrzeuge

Country Status (7)

Country Link
EP (1) EP0587623B1 (ko)
JP (1) JP3280971B2 (ko)
KR (1) KR0183060B1 (ko)
AT (1) ATE115478T1 (ko)
DE (2) DE4119391A1 (ko)
ES (1) ES2066619T3 (ko)
WO (1) WO1992022453A1 (ko)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4402995C1 (de) * 1994-02-01 1995-05-24 Knorr Bremse Systeme Klotzbremseinheit für Schienenfahrzeuge
KR100481095B1 (ko) * 2002-05-22 2005-04-07 재 영 이 답면 제동 유니트
CN101087670B (zh) 2004-12-22 2011-07-20 日本特殊陶业株式会社 赛纶陶瓷刀片以及装备这种刀片的切削工具
CN113415305B (zh) * 2021-07-16 2022-07-01 刘书学 方便闸瓦更换的闸瓦固定结构

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3205980A (en) * 1963-08-23 1965-09-14 Westinghouse Air Brake Co Railway car wheel tread brake apparatus
SE434377B (sv) * 1979-04-20 1984-07-23 Sab Ind Ab Bromsblockhallare hos ett jernvegsfordon
GB8801791D0 (en) * 1988-01-27 1988-02-24 Westinghouse Brake & Signal Tread brake unit

Also Published As

Publication number Publication date
JP3280971B2 (ja) 2002-05-13
DE59200991D1 (de) 1995-01-26
KR0183060B1 (ko) 1999-04-15
ATE115478T1 (de) 1994-12-15
DE4119391A1 (de) 1992-12-17
ES2066619T3 (es) 1995-03-01
JPH06510965A (ja) 1994-12-08
EP0587623A1 (de) 1994-03-23
KR940701348A (ko) 1994-05-28
WO1992022453A1 (de) 1992-12-23

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