GB1335449A - Brake units for example for rail vehicles - Google Patents
Brake units for example for rail vehiclesInfo
- Publication number
- GB1335449A GB1335449A GB2313271A GB2313271A GB1335449A GB 1335449 A GB1335449 A GB 1335449A GB 2313271 A GB2313271 A GB 2313271A GB 2313271 A GB2313271 A GB 2313271A GB 1335449 A GB1335449 A GB 1335449A
- Authority
- GB
- United Kingdom
- Prior art keywords
- load
- piston
- pressure
- brake
- vehicle
- 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
Links
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
- 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
- B60T8/18—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 vehicle weight or load, e.g. load distribution
- B60T8/1812—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 vehicle weight or load, e.g. load distribution characterised by the means for pressure reduction
- B60T8/1818—Lever mechanism
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Braking Arrangements (AREA)
- Hydraulic Control Valves For Brake Systems (AREA)
Abstract
1335449 External shoe brakes; transmitting mechanism; load-regulation of brakes; components KNORR-BREMSE GmbH 19 April 1971 [4 March 1970] 23132/71 Headings F2E and F2F A brake unit 1 comprises a brake cylinder 3 controlling a piston member 15, the piston member being coupled to the first lever arm 34 of an automatic brake linkage adjuster 35 pivoted at 38, the second lever arm 36 being coupled to one end of a longitudinally-displaceable thrust rod 37 extending transversely of axis 38 through guide means 39 fixed relative to the unit to apply a brake block 40 to a wheel 41; the angular spacing about pivot 38 of lever arms 34 and 36 is adjustable to maintain constant brake release play. As shown, the unit is fitted to a rail vehicle and has features which are a function of the load. Thus, piston 15 is a " no-load " piston and a balance beam 26 on which piston-rod 25 acts is fulcrummed on a pivot bearing 27 whose horizontal position is determined by a piston 32 subject to a pressure at 30 dependent on vehicle loading and to a return spring 31. Also, a " load " piston 10 having a rod 16 ending in a plate 18 is provided to assist piston 15. In operation, with the loading of the vehicle in the range from zero to half, compressed air is admitted at 22 to chamber 21, forcing diaphragm 14 and thus piston 15 downwards, whereby levers 34 and 36 are rotated clockwise and brake block 40 is applied to tread 41 of wheel 42. The position of pivot bearing 27 is governed by loadcontrolled pressure admitted at 33 (see below). 35 is a linkage adjuster of known type whereby lever 36 is automatically adjusted in a clockwise direction relative to lever 34 when the block-tread clearance is excessive, the original angle between levers 34, 36 may be restored for the purpose of replacing block 40. With loading of the vehicle from half to full, compressed air is admitted to both chambers 21 and 19 at 22 and 20 respectively. Plate 18 thereupon transmits to diaphragm 14 and to " no load " piston 15 the force exerted by the " load " piston 10 so the brake is applied by both pistons. If brake cylinder pressures already controlled according to load are available for admission to chambers 19 and 21, pivot bearing 27 and its appurtenances may be omitted. Lever 34 is then arranged to point the other way and rod 25 acts directly on it. For light vehicles needing only small braking forces, pivot bearing 27 &c. is retained but the " load " brake piston, cylinder &c., may be omitted, and air pressure independent of load is admitted to chamber 21. For particularly large braking force ratios between the vehicle empty and the vehicle loaded, the load-dependent pivot bearing 27 may be retained and in addition load-dependent pressure may be admitted to chamber 21. The line 33 communicating with chamber 30 is connected to a load-sensitive valve (not illustrated) to control the pressure. The loadsensitive valve admits pressure at a value which increases with vehicle loading until the pressure is a maximum at average loading. As the load increases beyond this, the load sensitive valve may interconnect the connections 20, 22 in a known manner, and reduce the pressure at 30 to the " no load " pressure. As the load increases further, the valve may increase the pressure at 30 until at maximum load it is a maximum once more.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702010138 DE2010138C (en) | 1970-03-04 | Brake unit for rail vehicles |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1335449A true GB1335449A (en) | 1973-10-31 |
Family
ID=5764054
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2313271A Expired GB1335449A (en) | 1970-03-04 | 1971-04-19 | Brake units for example for rail vehicles |
Country Status (4)
Country | Link |
---|---|
AT (1) | AT304627B (en) |
FR (1) | FR2084164A5 (en) |
GB (1) | GB1335449A (en) |
SE (1) | SE371153B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102060032A (en) * | 2010-12-08 | 2011-05-18 | 青岛四方车辆研究所有限公司 | Brake for railway vehicle unit |
CN109230174A (en) * | 2018-06-30 | 2019-01-18 | 湖州博得物流设备有限公司 | A kind of flexible conveyer easy to use feeding trolley arresting stop |
CN110341832A (en) * | 2019-07-29 | 2019-10-18 | 南京涵铭置智能科技有限公司 | A kind of collision prevention device and collision-proof method applied to industrial robot |
CN115199680A (en) * | 2022-07-08 | 2022-10-18 | 潍柴动力股份有限公司 | Forced brake release device and method for walking motor |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE8902054D0 (en) * | 1989-06-06 | 1989-06-06 | Sab Nife Ab | AN ACTUATOR FOR DELIVERING A VARIABLE MECHANICAL FORCE |
-
1971
- 1971-03-03 AT AT180471A patent/AT304627B/en not_active IP Right Cessation
- 1971-03-03 SE SE271771A patent/SE371153B/xx unknown
- 1971-03-04 FR FR7107412A patent/FR2084164A5/fr not_active Expired
- 1971-04-19 GB GB2313271A patent/GB1335449A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102060032A (en) * | 2010-12-08 | 2011-05-18 | 青岛四方车辆研究所有限公司 | Brake for railway vehicle unit |
CN102060032B (en) * | 2010-12-08 | 2012-12-19 | 青岛四方车辆研究所有限公司 | Brake for railway vehicle unit |
CN109230174A (en) * | 2018-06-30 | 2019-01-18 | 湖州博得物流设备有限公司 | A kind of flexible conveyer easy to use feeding trolley arresting stop |
CN110341832A (en) * | 2019-07-29 | 2019-10-18 | 南京涵铭置智能科技有限公司 | A kind of collision prevention device and collision-proof method applied to industrial robot |
CN115199680A (en) * | 2022-07-08 | 2022-10-18 | 潍柴动力股份有限公司 | Forced brake release device and method for walking motor |
CN115199680B (en) * | 2022-07-08 | 2024-03-19 | 潍柴动力股份有限公司 | Forced brake release device and method for walking motor |
Also Published As
Publication number | Publication date |
---|---|
AT304627B (en) | 1973-01-10 |
FR2084164A5 (en) | 1971-12-17 |
SE371153B (en) | 1974-11-11 |
DE2010138A1 (en) | 1972-03-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |