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WO1993013954A1 - Verin a un seul etage, en particulier jambe de suspension - Google Patents

Verin a un seul etage, en particulier jambe de suspension Download PDF

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Publication number
WO1993013954A1
WO1993013954A1 PCT/DE1993/000029 DE9300029W WO9313954A1 WO 1993013954 A1 WO1993013954 A1 WO 1993013954A1 DE 9300029 W DE9300029 W DE 9300029W WO 9313954 A1 WO9313954 A1 WO 9313954A1
Authority
WO
WIPO (PCT)
Prior art keywords
cylinder
tubes
tube
extending
piston rod
Prior art date
Application number
PCT/DE1993/000029
Other languages
German (de)
English (en)
Inventor
Gerd BRÄCKELMANN
Original Assignee
Montanhydraulik Gmbh
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 Montanhydraulik Gmbh filed Critical Montanhydraulik Gmbh
Priority to JP5512074A priority Critical patent/JPH06506423A/ja
Publication of WO1993013954A1 publication Critical patent/WO1993013954A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/26—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs
    • B60G11/28—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/26—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs
    • 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
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing
    • B60K17/14—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing the motor of fluid or electric gearing being disposed in, or adjacent to, traction wheel
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid

Definitions

  • the invention relates to a single-stage working cylinder, in particular a spring strut, the pressure spaces of which are delimited by the piston and are connected to a pressure accumulator which, together with the pressure spaces of the cylinder, forms the spring (for example DE-A-35 12 232). .
  • Such struts are used in vehicles with large axle loads, such as heavy duty vehicles, mobile cranes and the like, and then also in off-road vehicles, such as agricultural machinery.
  • large axle loads such as heavy duty vehicles, mobile cranes and the like
  • off-road vehicles such as agricultural machinery.
  • people have recently started to drive the wheels directly via wheel hub motors, and then also via hydraulic motors.
  • hydraulic drives In connection with hydraulic drives, there is the problem of routing the pressure oil.
  • Exposed cables are subject to the risk of damage due to external influences, especially in low-lying vehicles.
  • the object of the invention is to offer a solution which provides a line routing which is protected against external influences.
  • the object is, in a generic strut OF INVENTION ⁇ dung according achieved in that the working cylinder with min ⁇ least two mutually delimited, telescoping, is provided under pressure medium pressurized bushings whose opposing pressure gripping surfaces are designed the same.
  • At least two lines are required for driving a hydraulic motor, namely a line for the supply of the pressure oil driving the motor and a line for the discharge of the pressure oil and the discharge of leakage oil. If it is to be possible to change the direction of rotation, three lines are required, namely two lines for the switchable drive and a leakage oil line. Accordingly, three bushings are usually provided in the strut. Further bushings can be provided, for example for the application of a brake or for engine control. As far as pressure medium pressure is present in the bushings, the opposing pressure application surfaces are to be designed with the same area so that the pressure of the pressure oil driving the wheel hub motor does not influence the spring characteristics of the spring strut.
  • FIG. 1 shows a first embodiment of the new shock absorber with three bushings
  • FIG. 1 shows another embodiment of the
  • Figure 3 shows an embodiment of the strut with two bushings.
  • such struts are provided on a vehicle frame 12 in the case of individual suspensions of wheels 11.
  • the cylinder 211 of the strut 21 21 is assigned to the vehicle frame 12, the strut 21 is supported on the so-called kingpin 13 via the head plate 263 of the piston rod 262.
  • the bushings in the spring strut provided according to the invention serve to apply pressure oil to the wheel hub motor 14 indicated in FIG. 1, optionally driving the wheel 11 in one or the other direction of rotation.
  • the motor 14 requires three pressure medium lines 16, 17, 18, namely two lines 16, 17, of which one direction of rotation to be conveyed according to the motor forms the supply line and the other the discharge line, and a leak oil line 18.
  • a further hollow piston rod 264 extends, which runs into an annular piston 266 of the cylinder 211, which is formed by the tubes 213, 214 extending from the cylinder base 212, of the cylinder 211 a further two pipes 267, 268 enclosing the piston rod 264 and ending at a distance from the piston 266, the front widened (267 ', 268') sealingly abut against the respectively adjacent one of the pipes 213, 214 starting from the cylinder base 212.
  • the annular piston 266 divides the annular space 217 into the region 217 on the cylinder side and a region on the piston rod side, which is divided into the partial regions 217 ′, 217 ′′ by the piston rod 264.
  • the (267 ′ r 268 ′) widened on the end face extend from the top plate 263
  • the pipes 267, 268 shield the areas 217 ', 217 "of the annular space 217 formed between the pipes 213, 214 starting from the cylinder bottom 212, leaving the passages 269, 268, formed by the pipes 267, 268 starting from the top plate 263, 271 opposite the head plate-side regions 217 "', 217 IV of the hollow piston rods 262, 264.
  • the annular space 219 formed by the double-walled tube 213 extending from the cylinder base 212 is continuous (224 ⁇ to that on the one hand by the piston 266 and others - on the other hand, from the widened end 267 'of the region 217' of the tube 267, starting from the top plate 263 and comprising the piston rod 264, of the region 217 'of the annular space 217, formed by the cylinder base 212, and that of the annular space 217, that of the cylinder base
  • the annular space 221 formed from the double-walled tube 214 extending from 212 is continuous (226) to the tube 266 ', on the one hand, from the piston 266 and, on the other hand, from the widened end 268' of the tube leading from the head plate 263 and leading in the piston rod 264 268 delimited area 217 "of the annular space 217 formed by the tubes 213, 214 extending from the cylinder base 212.
  • connection between the line 16 leading to the wheel hub motor 14 and the pump or the tank forms the bushing resulting from the annular spaces or annular space regions 219, 217 'and the passage 269 in the strut 21, on which the head plate side -
  • the end of line 16 is connected (272) and the connection line to the pump or tank starts at 227 on the cylinder bottom side.
  • the connection between the line 17 leading to the wheel hub motor 14 and the pump or the tank results from the passage formed in the spring strut 21 by the annular spaces or annular space areas 221, 217 "and the passage 271, on the head plate side at 273
  • the line 17 is connected and the line leading to the pump or tank extends from the cylinder bottom side at 228.
  • the passage for the leak oil is provided by the central passage 218 starting from the cylinder bottom 212 and into the space 217 1 on the head plate side v passes to which the leak oil line 18 is connected at 274.
  • the line leading to the tank is connected to this bushing at 229.
  • Ventilation can also be provided in a manner known per se.
  • 311 denotes the cylinder, from the bottom 312 of which two concentric tubes 313 and 314 extend, with on the outer, thick-walled tube 313 at a distance from the cylinder bottom 312 and on the end face annular shoulders 316, 317 are formed.
  • the working piston 361 leads into the exterior of the tubes 313, 314 starting from the cylinder base, specifically on its ring shoulders 316, 317, passes the leading piston rod 362, which has a recess 363 on the cylinder bottom side, into which the interior of the tubes 313, 314 extending from the cylinder bottom 312 extends.
  • a double-walled tube 367 which surrounds the piston rod 362, extends from the head plate 366 of the piston rod 362 and extends into the outer wall of the cylinder wall 312, which extends from the cylinder base 312.
  • existing tubes 313, 314 formed annular space 319 extends in a leading manner on the cylinder wall and on the annular shoulders 316, 317 of the outer tube 313, 314 extending from the cylinder base.
  • An annular space 368 which is closed at the end, is formed between the walls of the tube 367.
  • the first pressure chamber 318 of the shock absorber is formed between the cylinder base 312 and the piston 361
  • the second pressure chamber 318 ′ of the shock absorber is formed between the working piston 361 and the annular shoulder 316 on the cylinder base side of the outer tube 313, 314 extending from the cylinder base.
  • This pressure chamber is continuous (364) to the recess 363 on the cylinder bottom side in the piston rod 362, into which the interior of the tubes 213, 214 extending from the cylinder bottom extends.
  • annular space region 318 is defined by the annular shoulders 316, 317 on the tube 313, and also through the tube 313 starting from the cylinder base 312 and that from the top plate 366 outgoing tube 367 surrounding the piston rod 362 is an annular space region 319 'which is likewise delimited by the annular shoulders 316, 317 located on the tube 313.
  • the annular space region 318 is accessible from the cylinder base 312 through a through the outer one which extends from the cylinder base 312 Tubes 313, 314 extending bore 321, this annular space region is accessible from the top plate 366 through a bore 369 extending through the piston rod 362.
  • annular space region 319 ' is again from the cylinder base 312 through another one through the exterior of the Cylinder base 312 outgoing tubes 313, 314 extending bore 322 accessible,. the access on the head plate side results from the annular space 368 which is formed in the tube 367 which extends from the top plate 366 and surrounds the piston rod 362 and which is continuous to the annular space 319 '(371).
  • the one for changing the Feedthroughs required for the drive motor are formed on the one hand by the bore 321 in the outside of the tubes emanating from the cylinder base 312, the annular region 318 "between the piston rod 362 and the tube 313 emanating from the cylinder base 312 and the bore 369 emanating from the head plate in the Piston rod 362 and on the other hand from the bore 322 in the tube 313 originating from the cylinder base 312, the annular space region 319 ′ formed between the tube 313 and the tube surrounding the piston plate 366, surrounding the piston rod 362, and in the tube originating from the head plate 63 367 formed annular space 368.
  • the leakage oil bushing results from the annular space 319 formed between the cylinder wall and the outer of the tubes 313, 314 extending from the cylinder base 312 on the one hand and the free space 319 "between the head plate 366 of the piston rod 362 and the front annular shoulder 317 of the outer starting from the cylinder base 312 end pipes 313, 314, on the other hand, which are connected by a further bore 323 extending through the outer of the tubes 313, 314 extending from the cylinder base 312.
  • the strut shown in FIG. 3, designed for two bushings, consists of the cylinder 411, from the bottom 412 of which two concentric tubes 413 and 414 extend, which form annular spaces 416 and 417.
  • the piston 461 with the piston rod 462 runs in the annular space 416.
  • the annular space region 416 delimited by the cylinder base 412 and by the piston 461 forms the first pressure space of the shock absorber, the annular space region 416 'delimited by the piston rod 462 and the cylinder wall (411) forms the second Strut pressure chamber.
  • the seal 424 on the end face of the outer (413) of the tubes 413, 414 extending from the cylinder base 412 further forms an annular space 422 together with the strut piston 461.
  • a seal 469 on the front side of the outer (464) of the tubes 464, 466 extending from the head plate 463 of the piston rod 462 and extending between the tubes 413, 414 extending from the cylinder base 412 forms together with the one on the front side of the inner (414) of the tubes 423, 414 extending from the cylinder base 412 located an seal 426 from an annular space 423.
  • the pressure chambers 416, 416 'of the shock absorber are connected to a reservoir via the connections 432 and 473, in the case of a working cylinder to a pump.
  • the first passage is from the inner (414) of the tubes 413, 414 extending from the cylinder bottom 412 with the connection 429 and formed by the inner (466) of the tubes 464, 466 extending from the head plate 463 with the connection 472.
  • the second passage runs through the annular space 417 formed between the tubes 413, 414 extending from the cylinder base 412, which is continuous (427) to between the outer (413) of the tubes 413, 414 extending from the cylinder base 412 and the piston rod wall (462) formed annular space 423, on which the piston rod 462 outgoing connection 471, which extends through the thick-walled wall of the piston rod 462.
  • the annular space 423 formed between the inner (414) of the tubes 413, 414 extending from the cylinder base 412 and the outer (464) of the tubes 464, 466 extending from the head plate 463 of the piston rod 462 is continuous (428) to the interior (414) of the Pipes 413, 414 extending from the cylinder base 412 and from the inside (466) of the passage 464, 466 formed by the head plate 463 of the piston rod 462.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Vehicle Body Suspensions (AREA)
  • Motor Power Transmission Devices (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

Avec des roues (11) de véhicules poids lourds (12) et analogues, directement entraînées par des moteurs au niveau du moyeu de roue (14), à suspension indépendante par jambe de suspension (21), se pose le problème de l'amenée protégée de l'huile hydraulique qui sert à l'entraînement du moteur de moyeu de roue (14). A cet effet l'on a conçu une jambe de suspension (21) dotée de passages (p. ex. 219, 217', 269 et 221, 217', 271 et 218, 217IV) pour l'huile hydraulique dont la caractéristique n'est pas modifiée par la pression provenant du fluide d'entraînement du moteur (14). Cette solution peut s'appliquer également à des vérins à un seul étage.
PCT/DE1993/000029 1992-01-16 1993-01-15 Verin a un seul etage, en particulier jambe de suspension WO1993013954A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5512074A JPH06506423A (ja) 1992-01-16 1993-01-15 特定スプリング・レッグにおけるワンステージ作動シリンダー

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19924200977 DE4200977A1 (de) 1992-01-16 1992-01-16 Federbein
DEP4200977.4 1992-01-16

Publications (1)

Publication Number Publication Date
WO1993013954A1 true WO1993013954A1 (fr) 1993-07-22

Family

ID=6449618

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1993/000029 WO1993013954A1 (fr) 1992-01-16 1993-01-15 Verin a un seul etage, en particulier jambe de suspension

Country Status (4)

Country Link
EP (1) EP0575593A1 (fr)
JP (1) JPH06506423A (fr)
DE (1) DE4200977A1 (fr)
WO (1) WO1993013954A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0607545A1 (fr) * 1992-12-02 1994-07-27 Öhlins Racing Ab Amortisseur
JP3151354B2 (ja) 1994-04-15 2001-04-03 コンパクト トラック アーゲー 自動車の車輪を駆動し操向するための装置
US20110162928A1 (en) * 2010-01-04 2011-07-07 Wilson Kelce S Super-Compressible Piston Shock Absorber
US20120306133A1 (en) * 2011-06-06 2012-12-06 Douglas Hunter Powell Long travel shock absorber
FR3028459A1 (fr) * 2014-11-18 2016-05-20 Laurent Eugene Albert Procede d'alimentation d'un moteur hydraulique et suspension a verin comprenant une chambre de compensation s'y rapportant

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60018956T2 (de) * 2000-12-29 2006-03-23 Mando Corp. Zweirohr-Schwingungsdämpfer, gefüllt mit hydraulischer Flüssigkeit und magnetorheologischer Flüssigkeit
US6360856B1 (en) 2001-01-05 2002-03-26 Mando Corporation Double-tube shock absorber using a hydraulic fluid and a magnetorheological fluid

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1120290B (de) * 1959-01-14 1961-12-21 Max Adolf Mueller Dipl Ing Radaufhaengung fuer Fahrzeuge, insbesondere Schwerlastfahrzeuge
US3225855A (en) * 1963-04-30 1965-12-28 Prime Movers Wiltshire Ltd Swivel mountings for fluid-driven steerable vehicle wheels
FR1513396A (fr) * 1965-12-07 1968-02-16 Acec Roue directrice électrique à suspension indépendante
DE2609924A1 (de) * 1975-03-14 1976-09-30 Teijin Seiki Co Ltd Antriebsvorrichtung
FR2530763A1 (fr) * 1982-07-22 1984-01-27 Messier Hispano Sa Amortisseur retractable
DE3942106A1 (de) * 1989-12-20 1991-06-27 Hemscheidt Maschf Hermann Hydropneumatische kolbenzylinderanordnung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1120290B (de) * 1959-01-14 1961-12-21 Max Adolf Mueller Dipl Ing Radaufhaengung fuer Fahrzeuge, insbesondere Schwerlastfahrzeuge
US3225855A (en) * 1963-04-30 1965-12-28 Prime Movers Wiltshire Ltd Swivel mountings for fluid-driven steerable vehicle wheels
FR1513396A (fr) * 1965-12-07 1968-02-16 Acec Roue directrice électrique à suspension indépendante
DE2609924A1 (de) * 1975-03-14 1976-09-30 Teijin Seiki Co Ltd Antriebsvorrichtung
FR2530763A1 (fr) * 1982-07-22 1984-01-27 Messier Hispano Sa Amortisseur retractable
DE3942106A1 (de) * 1989-12-20 1991-06-27 Hemscheidt Maschf Hermann Hydropneumatische kolbenzylinderanordnung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
TECHNISCHE MITTEILUNGEN KRUPP Nr. 1, Juni 1989, ESSEN, DE Seiten 29 - 36 WEISKOPF H. 'INDEPENDENT SUSPENSION : A NEW WAY FORWARD IN MOBILE CRANE DESIGN' *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0607545A1 (fr) * 1992-12-02 1994-07-27 Öhlins Racing Ab Amortisseur
JP3151354B2 (ja) 1994-04-15 2001-04-03 コンパクト トラック アーゲー 自動車の車輪を駆動し操向するための装置
US20110162928A1 (en) * 2010-01-04 2011-07-07 Wilson Kelce S Super-Compressible Piston Shock Absorber
US20120306133A1 (en) * 2011-06-06 2012-12-06 Douglas Hunter Powell Long travel shock absorber
US8714321B2 (en) * 2011-06-06 2014-05-06 Douglas Hunter Powell Long travel shock absorber
FR3028459A1 (fr) * 2014-11-18 2016-05-20 Laurent Eugene Albert Procede d'alimentation d'un moteur hydraulique et suspension a verin comprenant une chambre de compensation s'y rapportant
FR3028458A1 (fr) * 2014-11-18 2016-05-20 Laurent Eugene Albert Procede pour alimenter en fluide hydraulique un moteur hydraulique de roue motrice, suspension a verin s'y rapportant et vehicule ainsi equipe
WO2016078917A1 (fr) * 2014-11-18 2016-05-26 Albert Laurent Eugène Procede pour alimenter en fluide hydraulique un moteur hydraulique de roue motrice, suspension a verin s'y rapportant et vehicule ainsi equipe
US10421331B2 (en) 2014-11-18 2019-09-24 Laurent Eugène ALBERT Method of supplying a hydraulic motor for a drive wheel with hydraulic fluid, associated cylinder-type suspension system and vehicle equipped therewith

Also Published As

Publication number Publication date
DE4200977A1 (de) 1993-07-22
JPH06506423A (ja) 1994-07-21
EP0575593A1 (fr) 1993-12-29

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