DK158145B

DK158145B - HYDRAULIC TRACK SHIFT DRIVE

Info

Publication number: DK158145B
Application number: DK434378A
Authority: DK
Inventors: Leonhard Sandrock
Original assignee: Fabeg Gmbh
Priority date: 1977-10-06
Filing date: 1978-10-02
Publication date: 1990-04-02
Also published as: CH638733A5; GB2006500A; SE432570B; NL187674C; DE2744969C3; IT1100305B; DK158145C; GB2006500B; DK434378A; NL187674B; DE2744969B2; NL7810018A; BE871059A; DE2744969A1; IT7828517A0; SE7810198L; FR2405165B1; FR2405165A1

Description

DK 158145 BDK 158145 B

i 5 Opfindelsen angår et hydraulisk, især elektro- hydraulisk sporskiftedrev med en ved hjælp af et hydraulikaggregat betjenelig drivstang, der ved hjælp af overføringsstænger indvirker på sporskiftetungerne, som skal indstilles, og som trækker tunge-10 kontrolstænger, hvorved betjeningen af drivstangen sker ved hjælp af en enkelt, dobbeltvirkende bevægecylinder, som ved hjælp af en medbringer griber fat i en udskæring på drivstangen under bibeholdelse af en tomgangsstrækning (h) på stangen, og er indrettet ak-15 sialt forskydeligt på den fastgående stempelstang.The invention relates to a hydraulic, in particular electro-hydraulic track change drive with a drive rod operable by means of a hydraulic unit which acts by means of transfer rods to actuate the track change tongues to be adjusted and which pulls heavy control rods, whereby the operation of the drive rod is carried out by means of of a single, double-acting moving cylinder, which by means of a carrier engages a cutout on the drive rod while maintaining an idle stretch (h) on the rod, and is arranged substantially displaceable on the fixed piston rod.

Et sporskiftedrev af denne art kendes fra tysk offentliggørelsesskrift nr. 2.557.574. Fastholdekraften for drivstangen og sporskiftedrevet opnås ved hjælp 20 af en låsning, hvorved en på tværs af stødstangen forløbende låsevalse griber fat bag på et skråtstil-let, næseformet anlæg på drivstangen. Låsevalsen er en del af en svingarm, der af en tilbagetryksfjeder skubbes i drivstangens retning, og kan i normal stil-25 ling løftes af et oplåsningselement, der betjenes ved hjælp af en bevægecylinder. Ved en overskridelse af fastholdekraften bliver låsevalsen trykket op ved hjælp af det skråtstillede anlæg.A track change drive of this kind is known from German Publication No. 2,557,574. The holding power of the drive rod and the track change gear is achieved by means of a locking device, whereby a locking roller extending across the thrust bar engages the rear of an inclined, nose-shaped abutment on the drive rod. The locking roller is part of a pivot arm which is pushed by a retraction spring in the direction of the drive rod and in normal position can be lifted by an unlocking element operated by means of a moving cylinder. If the holding force is exceeded, the locking roller is pressed up by means of the inclined system.

30 Udløsningen af fastholdekraften for drevet ved opkørsel af sporskiftet er stærkt afhængig af sammenspillet af disse mekanisk samvirkende styre- og låsningsdele, som udsættes for slid. Driftssikkerheden og tillige den ensartede reproducerbarhed af fasthol-35 dekraften afhænger stærkt af den øjeblikkelige beskaffenhed, d.v.s. af graden af sliddet.30 The release of the holding power of the drive when driving up the track change is highly dependent on the interaction of these mechanically interacting control and locking parts which are subject to wear. The reliability and uniform reproducibility of the holding power depends strongly on the instantaneous nature, i.e. of the degree of wear.

2 DK 158145 B2 DK 158145 B

Formålet med opfindelsen er at tilvejebringe et hydraulisk sporskiftedrev, der praktisk talt uden slid sikrer en bestandig defineret og sikker udløsning af fastholdekraften og forhindrer be-5 skadigelse af drevet, især brud på sporskiftestangen, og beskadigelse af kontrolstængerne. Drevet skal derudover udvise en stor fastholdekraft og tillige fastlåse de anliggende sporskiftetunger uafhængigt af eventuelle yderligere centrallåse.The object of the invention is to provide a hydraulic track change drive which virtually without wear ensures a permanently defined and safe release of the holding force and prevents damage to the drive, especially breakage of the track change rod, and damage to the control rods. In addition, the drive must exhibit a large holding force and also lock the abutting track change tongues independently of any additional central locks.

1010

Dette formål opfyldes ifølge opfindelsen ved, at den ved bevægecylinderen værende medbringer indirekte ved hjælp af en drivstangen omgribende kuglekobling, der har en defineret hvilekraft, og under bibeholdelse af 15 en tomgangsstrækning (h) mellem to ansatser på kuglekoblingens hylster, bevæger drivstangen, og at der er anbragt som pallåsningsmekanisme opbyggede låsnings- og oplåsningssystemer for sporskiftets endestillinger, hvilke ligger aksialt efter hinanden 20 i forhold til drivstangsmekanismen og er opbygget spejlvendt og låser drivstangen i sine endestillinger ved ydre indgreb med kuglekoblingen, og at en oplåsning kun sker ved en tilsigtet skiftebevægelse ved hjælp af bevægecyl inderen, hvortil en medført op-25 låsningsskinne ved bevægecylinderen løfter den pågældende pallåsningsmekanisme inden for tomgangsstrækningen (h), og at det ved en opkørsel af sporskiftet udelukkende er kuglekoblingens definerede hvikekraft, der bestemmer drivstangens holdekraft.This object is fulfilled according to the invention by carrying the ball coupling indirectly by means of a drive rod having a defined resting force, while maintaining an idle distance (h) between two abutments on the housing of the ball coupling, the driving rod moves and there are provided locking and unlocking systems for the pivot end positions which are axially successive to the pivot mechanism and are constructed as a pivot locking mechanism and are mirrored and lock the drive rod in its end positions by external engagement with the ball coupling, and only by locking by means of the moving cylinder, to which an unlocking rail at the moving cylinder lifts the relevant pallet locking mechanism within the idle section (h), and that, when driving up the track change, it is only the defined swinging force of the ball coupling that determines the driving force of the drive rod. t.

30 Den anvendte kuglekobling lukker altid sikkert og • fast og er praktisk talt fri for slid, og kontrol skyderne bliver sikkert oplåst ved hjælp af den til enhver tid af hjulet først trykkede fraliggende sportunge. Beskadigelser udelukkes derved sikkert.30 The ball coupling used always closes securely and • firmly and is practically free of wear, and the control sliders are securely unlocked by means of the detached sports kid's first pressed wheel at any time. Damages are thereby safely excluded.

Fordelagtige udførelsesformer for sporskiftedrevet er angivet i kravene 3-7.Advantageous embodiments of the track change drive are set forth in claims 3-7.

3535

3 DK 158145 B3 DK 158145 B

Opfindelsen forklares herefter nærmere under henvisning til tegningen, hvor fig, 1-4 viser principbilleder af styredelen af den 5 hydrauliske vigespordrivmekanisme, fig. 5 viser et principbillede af en kuglekobling, fig. 6 viser et billede af vigespordrivmekanismen 10 set fra oven, fig. 7 viser et billede efter snittet A-B i fig.BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be explained in more detail with reference to the accompanying drawings, in which Figures 1-4 show principle views of the control part of the hydraulic folding track drive mechanism. 5 shows a principle view of a ball coupling; FIG. 6 is a top view of the subway track drive mechanism 10; FIG. 7 is a view along section A-B of FIG.

6, 15 fig. 8 viser et billede efter snittet C-D i fig.6, FIG. 8 is a view on section C-D of FIG.

6, fig. 9 viser et billede efter snittet E-F i fig.6, FIG. 9 shows a view along the section E-F of FIG.

6/ 206/20

Styreapparatet i fig. 1-4 for vigespordrivmekanismen arbejder som følger:The control apparatus of FIG. 1-4 for the subway drive mechanism works as follows:

Den gennem den i figurerne ikke viste aksialpumpe 25 fremførte hydraulikolie kommer gennem den i en leje plade 3 for forskydningsstangen 4 og prøve-gliderskinner 21,21 værende kanal 27 ind i boringen 7 af den fast anbragte stempelstang 5 og herfra ud i det mellem den vigesporsidige endeside af stempel-30 delen 15 og den tilsvarende endeside af den på stempelstangen glidende forreste bøsningsformede del 50 af stillecylinderen 16 opstående kammer 18. Som følge af det væsketryk, der opbygges i dette kammer, og på grund af den stationære anbringelse af 35 stempeldelen 15 bliver stillecylinderen 16 bevæget mod højre på stempelstangen 5. Med stillecylinderen bevæges også til højre den derpå fast anbragte med-The hydraulic oil conveyed through the axial pump 25 not shown in the figures passes through the channel 27 in a bearing plate 3 of the displacement rod 4 and sample slide rails 21, 21 into the bore 7 of the fixed piston rod 5 and from there into the between the lateral lateral end side of piston part 15 and the corresponding end side of the front sleeve-shaped part 50 of sliding bar 16 sliding on piston rod 16 due to the fluid pressure built up in this chamber and due to the stationary placement of piston part 15 the still cylinder 16 is moved to the right of the piston rod 5. The still cylinder is also moved to the right the co-mounted member then mounted thereon.

DK 158145 BDK 158145 B

4 bringer 19, hvis føringsstykke 42 indgriber i et optagerum 43 mellem to ansatser 44 og 45 af en kuglekobling 46. Da optagerummet 43 er bredere end føringsstykket 42, udfører stillecylinderen først et 5 tomgangs- eller for-slag af længden h, før føringsstykket 42 af medbringeren 19 støder mod ansatsen 45 af kuglekoblingen.4 brings 19 whose guide piece 42 engages in a receiving space 43 between two abutments 44 and 45 of a ball coupling 46. Since the receiving space 43 is wider than the guide piece 42, the still cylinder first performs an idle or stroke of length h, before the guide piece 42 of the carrier 19 abut the abutment 45 of the ball coupling.

Under tomgangsslaget bliver valsen 47 af låsesystemet 10 48 af en ligeledes på stillecylinderen 16 fastgjort oplåseskinne 49 trykket opefter og dermed ud af bevægelsesbanen for skinnen 49. Denne oplåsning bliver lettet ved en på skinnen 49 udformet skråflade 51. Som følge af opadbevægelsen af en om akserne 15 52,52' drejelig svingarm, som bærer valsen 47, bevæges også tværdelen 53,53' af systemet 48 opefter, så at også den i et bagsnit 55 af næsen 56 af kuglekoblingen værende valse 54 kobler ud af bagskæret og således frigiver forskydningsvejen for 20 kuglekoblingen.During the idle stroke, the roller 47 of the locking system 10 48 is also pressed upwardly onto the still cylinder 16 by a locking rail 49 and thus out of the path of movement of the rail 49. This unlocking is facilitated by an inclined surface 51. On the rail 49, due to the upward movement of one about the axes. 52.52 'rotatable pivot arm supporting roller 47 is also moved transverse portion 53.53' of system 48 upwardly so that roller 54 of nose 56 of ball coupling also disengages from the back cut, thus releasing the displacement path for 20 ball coupling.

Med delen 53' af låsesystemet 48 er der forbundet en ledstang 57, der indvirker på to svingarme 58 og 59 for den øvre og nedre prøveglider 21 og 21' og ved 25 den af oplåsesskinnen 49 bevirkede igangsætning af systemet bevæges opefter, hvorved de to ruller 60 og 61 svinges ud af udsparingerne 62 og 63 i styreskinnerne 64 og 65 af prøveskinnerne 21 og 21 , så disse to skinner ligeledes er oplåst.With the part 53 'of the locking system 48 is connected a link bar 57 which acts on two pivot arms 58 and 59 for the upper and lower test slides 21 and 21' and at 25 the start of the system effected by the locking rail 49 is moved upwards, whereby the two rollers 60 and 61 are swung out of the recesses 62 and 63 of the guide rails 64 and 65 of the test rails 21 and 21, so that these two rails are also unlocked.

3030

Med betjeningen af svingarmen 58 bliver samtidig ved en med denne svingarm forbundet vægtstang 66 betjent et koblingsorgan 37, der åbner en overvågningskontakt 38 (signal i stillemekanismen) og slutter motor-35 kontakten 67.With the operation of the pivot arm 58, simultaneously with a lever 66 associated with this pivot arm, a coupling means 37 is opened which opens a monitoring contact 38 (signal in the setting mechanism) and closes the motor contact 67.

Oplåsningstilstanden af anordningen ved sluttetThe unlock state of the device at the end

DK 158145 BDK 158145 B

5 motorkontakt 67 er vist i fig. 2.5 motor contact 67 is shown in FIG. 2nd

Efter afslutning af tomgangs- eller for-slaget, der for eksempel ligger i størrelsesordenen 20 mm, med-5 tager stillecylinderen 16 over medbringeren 19 kuglekoblingen 46 og med denne forskydningsstangen 4 og kommer sluttelig over den i fig. 3 viste midter-stiling til den i fig. 4 fastholdte endestilling, hvor endesiden af kuglekoblingen kommer til anslag 10 mod lejepladen 3. Dermed er nået endestillingen af forskydningsstangen 4 og prøveskyderne 21,2l'. Indstillingsvejen andrager herved ca. 220 mm.Upon completion of the idle or stroke, which is, for example, in the order of 20 mm, the still cylinder 16 takes over the carrier 19 the ball coupling 46 and with this displacement rod 4, and finally comes over the one in fig. 3 to the middle position shown in FIG. 4, the end position of the ball coupling reaches abutment 10 against the bearing plate 3. Thus, the end position of the displacement rod 4 and the test sliders 21,2 'is reached. The setting path hereby amounts to approx. 220 mm.

I den i fig. 4 fastholdte endestilling (+) af 15 forskydningsstangen og prøveskyderne træder det analogt med systemet 48 opbyggede låsesystem 68 i funktion. Den nu efter oplåseskinnen 49 værende valse 69 griber bag om denne skinne, og valsen 70 kommer ind i bagskæret 71 af kuglekoblingen 46. Dermed er 20 stillingen af forskydningsstangen 4 sikret. Endvidere falder rullerne 72 og 73 ind i udsparingerne 74 og 75 af styreskinnerne 64 og 65 for prøveskyderne 21,21 .In the embodiment shown in FIG. 4 retained end position (+) of the displacement rod and the test sliders, it operates in analogy to the system 48 built-in locking system 68. The roller 69 now remaining after the unlocking rail 49 engages this rail and the roller 70 enters the rear cutter 71 of the ball coupling 46. Thus, the position of the displacement rod 4 is secured. Further, the rollers 72 and 73 fall into the recesses 74 and 75 of the guide rails 64 and 65 for the sample sliders 21,21.

Ved den samtidige betjening af armen 66 bliver motoren frakoblet fra kontakten 67 og indkoblet med 25 kontakten 38 af overvågningsstrømkredsen (signal i stilleværket).During simultaneous operation of the arm 66, the motor is switched off from the switch 67 and switched on with the switch 38 of the monitoring circuit (signal in the silent station).

Rullen 73 af svingarmen 76 holder den nedre prøveskyder 21' i dens stilling og sikrer dermed ekstra 30 over tungeprøvestangen 21 den nu med sporet 77 anliggende vigetunge 78 i sin stilling. Sikringskraften andrager herved ca. 7,5 KN.The reel 73 of the pivot arm 76 holds the lower test slide 21 'in its position, thereby securing additional 30 over the tongue test rod 21, now the folding tongue 78 abutting the groove 77 in its position. The hedging power thus amounts to approx. 7.5 KN.

Sikringen af den bort fra sporet liggende vigetunge 35 79 sker tilsvarende ved hjælp af rullen 72 af svingarmen 80, som med et spillerum på ca. 10 mm indvirker på styreskinnen 64 af prøveskyderen 21 og 6 dermed på tungeprøvestangen 21 .Similarly, the folding tongue 35 79 away from the groove is secured by means of the roller 72 of the pivot arm 80, as with a clearance of approx. 10 mm acts on the guide rail 64 of the sample slider 21 and 6 thus on the tongue test rod 21.

DK 153145 BDK 153145 B

I denne position af forskydningsstangen og prøveskyderne er overvågningskontakten 38’ sluttet og 5 motorkontakten 67 sluttet.In this position of the displacement rod and the test sliders, the monitoring contact 38 'is closed and the motor contact 67 is closed.

De to svingarmepar 58,59 og 76,80 af låsesystemerne 48 og 68 er hver over en arm 81,82 koblet med hinanden. De to arme 81 og 82 bliver derved ved hjælp 10 af tallerkenfjedersøj ler trykket mod styreskinnerne 64 og 65. Indstillingskraften af drivmekanismen bestemmes ved den ikke viste trykbegrænsningsventil og andrager for eksempel 5,5 +/- 0,5 KN. I dette tilfælde bliver holdekraften af forskydningsstangen 15 begrænset af kuglekoblingen til ca. 7,5 +/- 0,5 KN.The two swing arm pairs 58.59 and 76.80 of the locking systems 48 and 68 are each coupled to one arm 81.82. The two arms 81 and 82 are thereby pressed against the guide rails 64 and 65 by means of plate spring columns. The adjusting force of the drive mechanism is determined by the pressure limiting valve not shown and is, for example, 5.5 +/- 0.5 KN. In this case, the holding force of the shear rod 15 is limited by the ball coupling to approx. 7.5 +/- 0.5 KN.

Som det fremgår af fig. 5a og 5b, holdes forskydningsstangen 4 i kuglekoblingen 46 ved hjælp af i en rille 96 i forskydningsstangen værende kugler 83.As shown in FIG. 5a and 5b, the displacement rod 4 in the ball coupling 46 is held by means of balls 83 in a groove 96 in the displacement rod.

20 Disse kugler bliver på deres side af to bundbøsninger 84,85, der hver ved hjælp af på fastholdekraft indstillede tallerkenfjedersøjler 86,87 trykkes mod de indstillelige anslag 89 på inderomkredsen af koblingshylsen, fikseret i midterstilingen, fig. 5a.These balls, on their side, of two bottom bushes 84,85, each of which are fixed by means of plate-adjusted spring springs 86,87 against the adjustable stop 89 on the inner circumference of the coupling sleeve, are fixed in the middle position. 5a.

2525

Ved påvirkning af forskydningsstangen 4 til træk (trækkraft fra vigesporet ved påkørsel, se fig. 1, pilen) bliver den højre bundbøsning 85 mod den derpå indvirkende tallerkenfjeder 86 trykket så langt ud 30 fra endestillingen, at kuglerne 83 fra kugleføringen 89 kommer ind i koblingshylserummet 95. Beliggenheden af den venstre bundbøsning 84 forbliver derved uforandret, da den som før ligger an mod bundanslaget 90 af koblingshylsen. Som følge af undvigelsen af 35 kuglerne i koblingshylserummet 95 kan forskydningsstangen nu trækkes ud med meget lille kraft, fig. 5b.By actuating the shear rod 4 for tension (traction from the folding track at impact, see Fig. 1, arrow), the right bottom bushing 85 against the actuating plate spring 86 is pressed so far out from the end position that the balls 83 from the ball guide 89 enter the coupling sleeve space. 95. The position of the left bottom bush 84 thus remains unchanged, as it abuts as before with the bottom stop 90 of the coupling sleeve. Due to the avoidance of the 35 balls in the coupling sleeve space 95, the displacement rod can now be pulled out with very little force. 5b.

DK 158145 BDK 158145 B

77

Ved et indkørende skinnekøretøj (indkørsel fra ( + ), vigespor i stilling (-), se fig. 1) bevæger det den nu fra- eller udliggende vigetunge 78 og dermed skydestangen 91 af klammerspidslåsen og tunge-5 prøverstangen 21' af den nedre prøveskyder 21' ca. 60 mm til højre (punkteret stilling). Under dette slag forbliver den mod bakskinnen 92 anliggende vigetunge 79 endnu først i sin stilling, men allerede ved begyndelsen af bevægelsen (efter ca. 6 mm vandring) 10 af den bortliggende vigetunge 78 udraster kuglekoblingen 46 på grund af forskydningen af stillestangen 93. Efter ca. 10 mm bevægelse løber den nedre prøveskyder 65 mod rullen 61 og udløser over denne svingarmen 59, armen 81 og svingarmen 58 rullen 60.In an on-going rail vehicle (entry from (+), folding track in position (-), see Fig. 1), it moves the now or away folding tongue 78 and thus the sliding rod 91 of the clamping point lock and the heavy-duty test rod 21 'of the lower test slider. 21 'approx. 60 mm to the right (dotted position). During this stroke, the folding tongue 79 abutting the rear rail 92 still remains in its position, but already at the beginning of the movement (after about 6 mm of travel) 10 of the folding folding tongue 78 the ball coupling 46 outranks due to the displacement of the stilling rod 93. After approx. . In 10 mm movement, the lower test slider 65 runs toward the roller 61 and releases over this swing arm 59, arm 81 and swing arm 58 roll 60.

15 Dermed bliver den ved brud på stillestangen 93 ellers virksomme ekstra forrigling af den anliggende vigetunge 79 ophævet. Overvågningskontakten 38 åbnes, motorkontakten 67 sluttes (tilkørselsmelding). Låsesystemet 48 forbliver stående i forriglings-20 stillingen. Tilbagestillingen af den udkoblede kuglekobling sker ved betjening af hydraulikken og den dermed forbundne vandringsbevægelse af stille-cylinderen 16. Forskydningsstangen 4 glider imidlertid ved tilkørsel videre gennem kuglekoblingen 25 til en maksimal vejlængde, der for eksempel kan ligge i størrelsesordenen 160 mm.15 Thus, when the tie rod 93 is broken, the additional locking action of the collapsing tongue 79 is otherwise eliminated. Monitoring switch 38 opens, motor contact 67 closes (drive message). The locking system 48 remains in the locking position. The reset of the disengaged ball coupling is effected by operating the hydraulics and the associated travel movement of the still cylinder 16. However, the displacement rod 4 slides further through the ball coupling 25 to a maximum path length, which can, for example, be on the order of 160 mm.

i tilfælde af omvendt stillebevægelse (fig. 1, fra (-) til ( + ) efter brud på tungepr øver s tangen 21 i 30 stilling (-) bliver under forløbet af stillebevægelsen af vigetungerne kun prøveskyderne 21' medtaget, medens den øvre prøveskyder 21 først forbliver i sin endestilling. De to prøveskydere 21 og 21' er koblet med hinanden med et friløb 24 på ca.in the case of reverse silent movement (Fig. 1, from (-) to (+) after breaking the tongue upper plier 21 in position (-), during the silent movement of the collet tongues only the sample sliders 21 'are included, while the upper slider 21 The two test sliders 21 and 21 'are coupled to each other with a clearance 24 of approx.

35 60 mm for begge bevægelsesretninger. Som følge af dette friløb bliver den på tungeprøverstangen 21 monterede prøveskyder først efter ca, 60 mm vandring35 60 mm for both directions of movement. As a result of this free run, the test slides mounted on the tongue test bar 21 will only become after about 60 mm migration

0 DK 158145 B0 DK 158145 B

OISLAND

medtaget af den nedre prøveskyder 21 ’, henholdsvis dennes styreskinnes 64 indfald af rullen 72 i udsparingen 74, så at i endestillingen ( + ) (fig. 4) spærrearmen 82 ikke betjenes, og følgelig kontakten 5 38 ikke sluttes, og der derfor ikke sker nogen ordningsmelding.included by the lower test slider 21 ', respectively, the incident of its guide rail 64 by the roller 72 in the recess 74 so that in the end position (+) (Fig. 4) the locking arm 82 is not operated and consequently the contact 5 38 is not closed and therefore does not occur. any scheme message.

Hvis drivmekanismen igen tilbagestyres til endestillingen (-) fig. 1, bevæges prøveskyderen 21 ca.If the drive mechanism is re-directed to the end position (-) fig. 1, the sample slider 21 is moved approx.

10 60 mm mod den nedre prøveskyder 21 og forhindrer derved indfald af spærrearmen 81, selvom drivmekanismen med forskydningsstangen 4 og oplåseskinnen 49 igen er bevæget tilbage i endestillingen (-).10 60 mm against the lower test slider 21, thereby preventing the catch of the locking arm 81, although the drive mechanism with the displacement rod 4 and the locking rail 49 is again moved back into the end position (-).

Derfor sluttes overvågningskontakten 38 ikke, og en 15 ordningsmelding kan heller ikke ske i dette tilfælde.Therefore, the monitoring switch 38 is not closed, and a scheme message cannot be made in this case either.

En ændring af fastholdekraften kan ved udførelsen ifølge opfindelsen kun ske, når en eller flere af de alene statisk påvirkede tallerkenfjedre af de to søjler 86 og 87 brydes.In the embodiment according to the invention, a change of the holding force can only occur when one or more of the statically actuated plate springs only of the two columns 86 and 87 are broken.

2020

Den ved de indstillelige tallerkenfjedersøjler 86 og 87, fig. 5, bestemte fastholdekraft i kuglekoblingen ændres ved brud af en eller flere tallerkenfjedre ganske vist kun lidt. For eksempel fremkommer ved 25 samtidige udfald af tre tallerkenfjedre for hver søjle en formindskelse af fastholdekraften på ca. 5%.In the adjustable plate spring columns 86 and 87, FIG. 5, certain holding force in the ball coupling is altered by the breaking of one or more plate springs only slightly. For example, at 25 simultaneous outages of three plate springs for each column, a decrease in the holding power of approx. 5%.

Af fig-.- 6-9, der viser en foretrukken udførelsesform for en vigespordrivmekanisme ifølge opfindelsen, 30 fremgår det, at de i fig. 1-4 parvis rumligt under hinanden liggende forriglings- og oplåsevalser 47,54 og 60,61 samt 69,70 og 72,73 er incorporeret ved hver en valse, hvilke i vandret retning på den ene side på tværs af bevægelsesbanen af oplåseskinnen 49 og næsen 35 56 af kuglekoblingen 46 forløber og korresponderer med disse dele og på den anden side indgriber i bevægelsesbanerne af styreskinnerne 64 og 65 afFIGS. 6-9, which show a preferred embodiment of a folding track drive mechanism according to the invention, show that in FIG. 1-4 pairs of spatially interlocking locking and unlocking rollers 47.54 and 60.61 as well as 69.70 and 72.73 are incorporated with each roller, which in a horizontal direction on one side across the movement path of the unlocking rail 49 and the nose 35 56 of the ball coupling 46 extends and corresponds to these parts and, on the other hand, engages in the paths of movement of the guide rails 64 and 65 of

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9 prøveskinnerne 21 og 21 ’ under frigivelse eller arretering. Spærrearmene 81 og 82 er derved forbundet ved vinkelarme, medens led- eller koblingsstængerne 57,57 til betjening af de to vinkelarme indgriber i 5 en udsparing 94, fig. 8, i den nedre gren af spærrearmen.9 the test rails 21 and 21 'during release or arrest. The locking arms 81 and 82 are thereby connected by angular arms, while the link or coupling bars 57,57 for operating the two angular arms engage in a recess 94, fig. 8, in the lower branch of the locking arm.

Claims

1. Hydraulic, especially electro-hydraulic track gear with a hydraulic actuator operated by means of transmission rods, acting on transfer rods to be adjusted and pulling tongue control rods, and the actuation of the drive rod using a single, double -acting movement cylinder, which by means of a carrier engages a cutout on the drive rod 10 while maintaining an idle stretch and is arranged axially displaceable on the fixed piston rod, characterized in that the carrier (19) present by the moving cylinder (16) by means of a drive rod (4) engaging ball coupling (46) having a defined resting force, and while maintaining an idle distance (h) between two abutments (44,45) on the sleeve of the ball coupling (46), the driving rod (4) moves, and that locking mechanism and 20 locking systems (48,68) are provided for the end of the track change as a pallet locking mechanism; axes which lie axially in succession to the thrust mechanism and are mirrored and lock the thrust bar (4) in their end positions by external engagement with the ball coupling (46), 25 and that unlocking occurs only by an intended shifting movement by means of the moving cylinder (16). ), to which an unlocking rail (49) at the moving cylinder (16) lifts the pallet locking mechanism within the idle section (h), and that, upon an upward movement of the track change, the power of the ball coupling (4) is determined by the ball coupling (4). ) holding power.

Track switching drive according to claim 1, characterized in that it comprises two control rods (21 ", 21" which lock the track switch tongues (78,79) to the ball coupling in the outer positions by means of the DK 158145 B control sliders (21, 21), which is locked by the locking and unlocking system (48,68).

Track switching drive according to claim 1 or 2, characterized in that each locking and unlocking system (48,68) has two approximately parallel levers which are always provided with a locking roller (47.54 and 69, respectively). 70) and are pivotal about their respective fixed points, which lifting test rods are mechanically interconnected by means of a cross bar, whereby one locking roller (47 and 69, respectively) can be controlled by means of a locking rail (49) arranged at the moving cylinder (16). ).

4. A change-over drive according to claims 1-3, characterized in that at one pivot arm in each locking system (48,68) a coupling rod (57,57) is arranged which acts on a pivot arm (81.82), each of which is provided with an arresting roller (60.61 and 20.72) for locking and unlocking the upper and lower control sliders (21,21).

Track change drive according to claims 1-4, characterized in that the ball coupling (46) has at both ends a rear cut nose, in which the rear cutter one or the other locking roller in the locking and unlocking system (48,68) always engages.

Track switching drive according to claim 4, characterized in that each angle arm (81.82) is connected to a locking arm (66,66) which transmits the angular arm equipment movement to a switch-off means (37) for an electrical position indication.

Track change gear according to claims 1,2 and 5, characterized in that the ball coupling (46) is adjustable.