CS261829B1

CS261829B1 - Hydraulic stabilizer with variable stabilizing effect

Info

Publication number: CS261829B1
Application number: CS872606A
Authority: CS
Inventors: Imrich Ing Borik
Original assignee: Imrich Ing Borik
Priority date: 1987-04-13
Filing date: 1987-04-13
Publication date: 1989-02-10
Also published as: CS260687A1

Abstract

Stabilizátor rieši. konštrukciu a zapojenie hydraulického obvodu stabilizátora s pre- menlivým stabilizačným účinkom pre pou- žitie v automobiloch, kde má za úlohu zabránit nakloněniu automobilu pri prejazde zákrutou. Stabilizátor je riešený tak, že do hydraulického obvodu je zaradený rozvá- dzač, ktorého piest je výkyvné spojený s dvojramennou pákou, cez ktorú je ovládaný spojovacou týčou riadenia alebo priamo blavnou pákou riadenia. Rozvádzač je zapojený tak, že pri priainej jazde prepúšťa hydraulická kvapalinu z valcov do vyrov- návacej nádrže, čím umožní navzájom nezávislý pohyb kolies, ale pri prejazde zákrutou piest rozvádzača uzavrie prietok kvapaliny z valcov. do vyrovnávacej nádrže, tým núti. piesty vo valcoch a teda aj kolesá vykonávat navzájom závislý pohyb. Stabilizátor je možné využit vo všetkých druhoch čestných vozidiel, nezávisle na druhu po- užitej nápravy, pruženia a riadenia.Stabilizer solves. the design and connection of the hydraulic circuit of the stabilizer with a variable stabilizing effect for use in cars, where it is intended to prevent the vehicle from tilting when passing through a curve. The stabilizer is designed in such a way that a distributor is mounted in the hydraulic circuit, the piston of which is pivotally connected to a two-arm lever through which it is controlled by a steering linkage or directly by a steering lever. The switchgear is coupled such that, in direct travel, it passes hydraulic fluid from the cylinders to the alignment tank, allowing the wheels to move independently of each other, but closes the fluid flow from the cylinders when passing the twist of the distributor. into the buffer tank, forcing it. the pistons in the cylinders and thus the wheels to perform a dependent motion. The stabilizer can be used in all types of honest vehicles, regardless of the type of axle, suspension and steering.

Description

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Vynález rieši konštrukciu a zapojenie hy-draulického obvodu stabilizátora s premen-livým stabilizačným účinkom. Účelom sta-bilizátora je zabránit nakláňaniu automobi-lu vplyvom odstredivej sily pri prejazde zá-krutou. V súčasnosti sa bežne používá skrutný ahydraulický stabilizátor. Skrutný stabilizá-tor je v podstatě skrutná tyč otočné uchyte-ná o karosériu. Má dve ramená, z ktorýchjedno je spojené s jedným kolesom a dru-hé rameno s druhým kolesom tejto nápravy.Keď sa teda dvíha jedno koleso, dvíha sačiastočne aj druhé koleso, čím sa pri pre-jazde zákrutou automobil čiastočne vyrov-ná. Velkost sily na dvíhanie druhého kole-sa a teda aj velkost' zdvihu druhého kolesavzhladom ku prvému kolesu, čiže stabili-začný účinok závisí od toho, na akú tuhostje stabilizátor dimenzovaný. Rovnako vplý-va tuhost stabilizátora na stabilizačný úči-nok aj pri hydraulickom stabilizátore, kto-rý je založený na principe prepojenia dvochhydraulických tlmičov potrubiami. Vo val-coch sú piesty, ktoré sú pákovým prevo-dom spojené s jednotlivými kolesami. Privýkyve kolesa smerom hoře sa vo válci po-súva piest pri tomto kolese, ktorý před se-bou tlačí hydraulická kvapalinu škrtiacimventilom na druhu stranu piesta umiestne-ného na druhej straně automobilu. Tým sapresúva aj druhý piest a dvíha aj druhé ko-leso. V okruhu je zaradený vyrovnávač sgumeným blokom. Tuhost stabilizátora jenepriamo úměrná velkosti tohoto gumené-ho bloku.The invention solves the construction and connection of a hydraulic circuit of a stabilizer with variable stabilizing effect. The purpose of the stabilizer is to prevent the vehicle from tilting due to the centrifugal force passing through the bolt. Currently, a curved and hydraulic stabilizer is commonly used. The cantilever stabilizer is a substantially torsion bar rotatably attached to the body. It has two arms, one of which is connected to one wheel and the other to the other to the other. When one wheel is lifted, then the other wheel is lifted partially, whereby the car is partially aligned. The magnitude of the force for lifting the second wheel and hence the stroke size of the second wheel relative to the first wheel, thus the stabilizing effect depends on the stiffness of the stabilizer dimensioned. Similarly, the stiffness of the stabilizer also affects the stabilizing effect of a hydraulic stabilizer based on the principle of connecting two hydraulic dampers through pipes. In the val-coch, the pistons are lever-coupled with individual wheels. The mount of the wheel in the cylinder is the piston of the wheel in the cylinder, which presses the hydraulic fluid through the throttle valve on the other side of the piston located on the other side of the car before it joins. Thus, the second piston is also raised and the second co-forest is raised. In the circuit there is a compensator with a rubberized block. The stiffness of the stabilizer is proportional to the size of the rubber block.

Nevýhodou týchto stabilizátorov je to, žeak je stabilizátor dimenzovaný na malú tu-host, tak je malý stabilizačný účinok v zá-krutách a automobil sa velmi nakloní. Akje zasa stabilizátor dimenzovaný na velkútuhost, je sice velký stabilizačný účinok vzákrutách, ale sa pohyb jedného kolesa pre-náša na druhé koleso aj pri jazde po pria-mej ceste s nerovným povrchom, čo zvyšujevelkost neodpruženej hmoty vozidla a týmaj otřasy automobilu a namáhanie jednot-livých častí nápravy a mechanizmu riade-nia. Pri jazde po ceste s nerovným povr-chom sa vplyvom váčšej neodpruženej hmo-ty zvyšuje aj jazdný odpor a teda aj spo-třeba.The disadvantage of these stabilizers is that the stabilizer is dimensioned for a small size, so there is little stabilizing effect in the torsion and the car leans very much. Once again, if the stabilizer is dimensioned for high-density, the stabilizing effect of the wakes is great, but the movement of one wheel passes to the other wheel, even when driving on a straight road with an uneven surface, which increases the unsprung mass of the vehicle and the concussion of the car and the stresses of the unity. parts of the axle and the steering mechanism. When driving on uneven ground, the resistance to the road and therefore the need for the load is increased due to the larger unsprung height.

Uvedené nevýhody týchto stabilizátorovodstraňuje stabilizátor s premenlivým sta-bilizačným účinkom podlá vynálezu, kto-rého podstata spočívá v tom, že popísanýhydraulický stabilizátor je doplněný o roz-vádzač ovládaný zalomenou pákou, ktorá jenatáčaná spojovacou týčou riadenia.The above-mentioned disadvantages of these stabilizers are eliminated by the stabilizing agent according to the invention, which is characterized in that the described hydraulic stabilizer is supplemented by a switch operated by a cranked lever which is swiveled by the steering rod.

Funkcia rozvádzača spočívá v tom, že pripriamej jazde prepúšťa hydraulickú kvapa-linu z valca, ktorý je pri dvíhanom kolese,do vyrovnávacej nádrže. V okruhu sa po-tom nevyvinie tlak a sila sa neprenáša nadruhé koleso, ktoré sa potom nedvíha. Prinatáčaní kolies pri jazde do zákruty všakrozvádzač preruší přívod kvapaliny z valca stabilizátora pri dvíhanom kolese do vyrov-návacej nádrže. Hydraulická kvapalina jepotom piestom pretláčaná do druhého val-ca, v ktorom dvíha piest. Pohyb piesta saprenáša na druhé koleso, ktoré je tiež dví-hané. Tým sa zabráni nakloneniu karosérieautomobilu v zákrute. Kedže kvapalina jenestlačitelná a přívod do vyrovnávacej ná-drže je přerušený, tuhost stabilizátora a te-da aj stabilizačný účinok je maximálny. Au-tomobil sa preto úplné vyrovná. Zasunutímpiestnych tyčí do valcov pri dvíhaní koliessa vnútorný objem valcov zmenšuje a pre-bytočný olej sa vytláča do vyrovnávacej ná-drže druhým potrubím, ktorého přívod dotejto nádrže nie je přerušený. Škrtiace ven-tily slúžia na utlmenie pohybu rozkmitanéhokolesa, podobné ako v tlmičoch. Výhodou hydraulického stabilizátora spremenlivým stabilizačným účinkom je to,že pri priamej jazde nie je prakticky žiadnystabilizačný účinok a teda kolesá sa móžudvíhať nezávisle na sebe. Nezvačšuje sa ne-odpružená hmota vozidla a preto aj otřasyautomobilu a namáhanie častí nápravy ariadenia sú menšie. Pri prejazde zákrutouje zasa stabilizačný účinok maximálny a te-da sa úplné zabráni nakloneniu karosérieautomobilu. Pri tomto stabilizátore je ok-rem toho možné použit mákšie pružiny, čoje výhodné z híadiska pohodlia jazdy. Příklad konštrukcle a zapojenia hydrau-lického obvodu stabilizátora pódia vynále-zu je zobrazený na výkrese, kde je znázor-něná predná náprava spolu so stabilizáto-rom pri pohtade zozadu. Rozvádzač 11, oj-nica 13, dvojramenná páka 14 a spojovaciatyč riadenia 15 sa v skutočnosti pohybujúvo vodorovnej rovině.The function of the switchgear is that direct driving passes the hydraulic fluid from the cylinder that is at the lift wheel into the buffer tank. No pressure is then applied to the circuit and the force is not transferred for the second time, which is then not lifted. However, rolling the wheels while driving in a twist, the switchgear interrupts the supply of liquid from the stabilizer cylinder when the wheel is lifted into the alignment tank. The hydraulic fluid is pushed by the piston into the second cylinder in which it lifts the piston. The movement of the piston is transmitted to the second wheel, which is also raised. This prevents the car body from tilting. Since the liquid is compressible and the supply to the buffer tank is interrupted, the stiffness of the stabilizer and thus the stabilizing effect is maximized. Therefore, Au-tomobil is completely equal. The insertion of the rods into the cylinders during the lifting of the inner cylinders reduces the internal volume of the cylinders and the excess oil is forced into the equalizing tank by a second pipe whose supply of this tank is not interrupted. Throttle valves serve to dampen the movement of the oscillating wheel, similar to the dampers. The advantage of a hydraulic stabilizer with a variable stabilizing effect is that there is virtually no stabilizing effect in direct driving and therefore the wheels can be lifted independently of each other. The non-sprung mass of the vehicle is not getting bigger and hence the car body and the axle and axle parts are less stressed. In the course of the twist, the stabilizing effect is again maximized and the body tilting is thus completely prevented. With this stabilizer, it is also possible to use damper springs, which are advantageous for driving comfort. An example of the construction and engagement of a hydraulic circuit of a stabilizer according to the invention is shown in the drawing, where the front axle together with the rear stabilizer is shown. The distributor 11, the rod 13, the two-arm lever 14 and the steering coupling 15 are in fact moving in a horizontal plane.

Dva válce 1 a 2 s přestárni sú připevně-né ku nápravnici 18 alebo ku karosérii au-tomobilu. Piesty sú spojené pomocou ojníc3 a 4 s 1'avým ramenom nápravy 5 a pravýmramenom nápravy 6. Priestor valca 1 podpiestom je přepojený cez škrtiace ventily7 a 8 s priestorom pravého valca 2 a cezrozvádzač 11 aj s vyrovnávacou nádržou 12.Vyrovnávacia nádrž má odvzdušňovací ven-til, aby v nej nevznikol přetlak.The two cylinders 1 and 2 with the shed are attached to the axle 18 or to the car body. The pistons are connected by connecting rods 3 and 4 to the left arm of the axle 5 and the right-hand axle 6. The space of the cylinder 1 is supported by throttling valves 7 and 8 with the space of the right cylinder 2 and through the distributor 11 with the buffer tank 12. The buffer tank is vented. to avoid overpressure.

Priestor pravého valca 2 pod piestom jeprepoijený cez škrtiace ventily 9 a 10 spriestorom nad piestom 1'avého valca 1 acez rozvádzač 11 aj s vyrovnávacou nádr-žou 12. Škrtiace ventily 7 a 9 škrtia prietok kva-paliny pri klesaní kolies a teda kladů prie-toku hydraulickej kvapaliny taký odpor,ktorý zodpovedá tlmeniu pohybu pri kle-saní kolies. Škrtiace ventily 8 a 10 škrtia prietok kva-paliny pri dvíhaní kolies a teda kladů prie-toku kvapaliny len taký odpor, ktorý zod-ovedá tlmeniu pohybu pri dvíhaní kolies.krtiace ventily mQže byť pevne spojené spříslušnými valcami a riešené ako v pies-toch hydraulických tlmičov. V rozvádzač!The space of the right-hand cylinder 2 below the piston is passed through the throttle valves 9 and 10 through the space above the piston of the left-hand cylinder 1 and the distributor 11 as well as the equalizing tank 12. The throttling valves 7 and 9 throttle the flow of liquid during the descent of the wheels the flow of hydraulic fluid, the resistance that corresponds to the damping of the wheel slide movement. The throttle valves 8 and 10 throttle the fluid flow at the wheel lift and thus the liquid flow resistance only the resistance that dampens the wheel lift motion. The throttle valves can be rigidly coupled to the respective cylinders and solved as in hydraulic sand. mufflers. In the switchboard!

Claims

5 6 261629 11 moves a toe which is actuated by a connecting rod 13 and a double-arm lever 14 by a coupling 15 to the steering 15. When traveling on a straight road with an uneven surface, when the left wheel 16 is lifted, the knit in the 1 'left cylinder 1 is lifted. Similarly, when the right wheel 17 is lifted, the piston in the right cylinder 2 closes, whereby it displaces the hydraulic fluid through the distributor 11 to the equalization tank 12. The liquid flow from the cylinders 1 and 2 to the straightening tank 12 is not interrupted in direct travel and thus the wheels 16 and 17 are lifted independently of one another. When passing through a twist, e.g., counter-clockwise, the steering linkage rod 15 is moved to the right and, with the aid of a two-arm lever 14 and a rod 13, the piston of the distributor 11 is moved by the mount. The distributor piston interrupts the flow of the hydraulic fluid from the lower chamber val-ca 1 and the upper chamber 2 of the cylinder 2 to the equalizing tank 12. Efforts to incline to the right due to the centrifugal forceful car. The right wheel 17 is thus raised relative to the body. Here, the piston in the right cylinder 2 passes through the connecting rod 4. As the piston fluid flow in the cylinder 2 to the equalizing tank 12 is interrupted by the distributor piston, the liquid is forced through the throttle valve 8 under the piston in the cylinder 1. The piston rods are lifted up and through the connecting rod 3 and the left axle 5. . Since the volume above the piston of the cylinder 2 is larger than the volume below the piston of the cylinder 1 of the locomotive bar, the overpressed liquid raises the piston in cylinder 1 and thus the left wheel 16, before the piston in cylinder 2 and the right-hand wheel 17 are lifted. However, on the right wheel 17 d, the tire is more compressed due to the centrifugal force. The car is now fully leveled and there is no inclination when passing through the curve. The excess hydraulic fluid of the piston I piston is forced into the buffer tank 12 because the flow from this chamber to the buffer tank 12 is not interrupted by the distributor piston II. PREDMET Hydraulic stabilizer with variable stabilizing pitch, consisting of two hydraulic dampers with throttling valves connected by pipelines, characterized by the fact that it is completed with a distributor (11), which piston is through the connecting rod (13) and double arm. they also lift the two wheels, with the difference that the steering tie rod 15 moves into the axle and sends the piston of the distributor 11 to the bottom via the two-arm lever 14 and the rod 13. The buffer reservoir 12 is then interrupted by the hydraulic cavapalinysponad supply of the piston in the cylinder 1 and the piston from the piston 2. The cylinder roll of the distributor 11 must be such as to allow the two wheels 16 and 17 to be rotated to their end positions and not to block the forward positions as the teams control has also been blocked. The air inlets of the hydraulic fluid inlets 11 must be such that upon starting the wheels 16 and 17 the piston immediately starts to close the fluid flow into the distributor 11 from the respective cylinder. The apertures of the inlets must be so narrow that at a relatively small rotation of the wheels 13 and 17, the piston or the piston closes the respective fluid inlet of the dispenser 11, thereby preventing tilting of the carcass at the beginning of the curve. The groove of the sand of the distributor 11 must be such that, when the wheels 16 and 17 are fully rotated, the u-closed hydraulic feed is not exposed to the liquid by the other side. The buffer 12 and the entire hydraulic circuit must be closed to prevent the ingress of dirt which could cause blockage of the distributor 11 and thus the car control. The pistons of the cylinders 1 and 2 are connected by means of 5 and with the help of the connecting rods 3 and 4, and also the distributor 11 is connected to the double lever 14 by means of the connecting rod 13, because the cylinders 1 and 2 and the distributor 11 must not move towards each other since they are connected by O-tubes. The steel pipes are required due to high pressures when the feed to the buffer tank 12 is interrupted. The distribution of the distributor 11, the buffer tank 12 and the pipe depends on the design of the axle, or the location of the motor. The stabilizer of the present invention can be used in both passenger and commercial vehicles, irrespective of the type of axle. an inventive lever (14 connected to the connecting device (15) is provided with the main lever), and the equalizing tank (12) is connected to the rollers (1, 2) via a manifold (11).