SI24767A

SI24767A - Forestry ropeway with improved brake of trolley

Info

Publication number: SI24767A
Application number: SI201400261A
Authority: SI
Inventors: PAN Iztok Ĺ; PrimoĹľ Kranjc; JoĹľe ZapuĹˇek; Ivan ZapeÄŤnik
Original assignee: Tajfun Planina Proizvodnja Strojev, D.O.O.
Priority date: 2014-07-14
Filing date: 2014-07-14
Publication date: 2016-01-29

Abstract

Gozdarska žičnica obsega voziček (20), ki poleg ogrodja (20) in vsaj dveh nosilnih vrvenic (21', 21"), s pomočjo katerih je voziček (2) držan na nosilni vrvi (VN) in premakljiv vzdolž le-te, podporne vrvenice (23) in pogonskega sredstva (230) vlečne vrvi (VV) obsega tudi zavoro (28) za preprečevanje premikanja vozička (2) vzdolž nosilen vrvi (VN). Zavora (28) obsega v okrovu (281) v smeri proti nosilni vrvi (VN) ali vstran od nje s pomočjo hidravličnih cilindrov (2806', 2806") premakljiv zavorni sklop (280), ki obsega nepremakljivo zavorno čeljust (2801) in premakljivo zavorno čeljust (2802), ki je mehansko povezana z nadaljnjim hidravličnim cilindrom (2803).The forest cableway comprises a trolley (20) which, in addition to the frame (20) and at least two carrying ropes (21 ', 21 "), by means of which the trolley (2) is held on the carrier rope (VN) and movable along it, the barrel (28) comprises in the casing (281) in the direction towards the carrier rope (281), and the brake (28) comprises a brake (28) for preventing the movement of the trolley (2) (286) and a movable brake jaw (2802) mechanically coupled to the further hydraulic cylinder (286), which is movable by means of a hydraulic cylinder (2806 ', 2806'), 2803).

Description

Gozdarska žičnica z izpopolnjeno zavoro vozičkaForestry cable car with advanced trolley brake

Izum spada na področje delovnih operacij in transporta, in sicer k napravam za dviganje, privzdigovanje ali vleko, konkretno pa k žičnicam oz. kabelskim oz. vrvnim žerjavom, pri katerih se voziček za vleko bremena premika po vrvi, ki poteka na odmiku od podlage. Izum te vrste na področju delovnih operacij in transporta v določenem kontekstu lahko spada tudi k žičnicam z visečim vlečnim vozičkom.The invention belongs to the field of work operations and transport, namely to devices for lifting, lifting or towing, and specifically to cableways or. cable oz. rope cranes in which the trolley moves the load on a rope running away from the ground. The invention of this type in the field of work operations and transport in a particular context may also belong to the lifts with a suspended tow truck.

Pri tem je izum osnovan na problemu, kako zasnovati k traktorju priključljivo gozdarsko žičnico s podvozjem in kolesi ter s pomočjo traktorske kardanske gredi gnanimi hidromotomimi navijalnimi bobni za nosilno, vlečno in po izbiri povratno vrv z vsemi pripadajočimi hidravličnimi komponentami in vrvenicami za postavitev in pogon žičnice ter namestitev vozička za vleko vsakokratnega bremena, pri kateri bo zavora za zaviranje vzdolž nosilne vrvi premakljivega vozička izvedena kompaktno in v okviru kar najmanjših dimenzij, obenem pa bo dopuščala tudi premikanje vozička preko ovir, kakršno npr. predstavlja vsaj podpora nosilne vrvi, kije potrebna bodisi takrat, kadar je nosilna vrv bodisi zaradi večje dolžine izpostavljena prevelikim povesom, ali pa zaradi konfiguracije terena.The invention is based on the problem of how to design a forestry cable with a chassis and wheels connected to a tractor and, with the help of a tractor PTO shaft, driven hydromotome winding drums for supporting, traction and optionally return rope with all associated hydraulic components and ropes for installation. and the installation of a trolley for towing each load, in which the braking brake along the support rope of the movable trolley will be compact and within the smallest possible dimensions, while also allowing the trolley to move over obstacles such as e.g. represents at least the support of the supporting rope, which is required either when the supporting rope is exposed to excessive overhangs, either due to its greater length, or due to the terrain configuration.

Gozdarska žičnica, iz katere izhaja omenjeni tehnični problem, je kot taka je opisana v slovenskem patentu SI 24141 A na osnovi prijave št. P-201200223, razen tega pa tudi v mednarodni patentni prijavi št. WO 2014/014423 in evropski patentni prijavi EP 13753711.4, na kar se prijavitelj v tej prijavi tudi sklicuje oz. svojo prijavo vlaga s sklicevanjem oz. z referenco na svoje prej naštete prijave.The forestry cable car, from which the mentioned technical problem arises, is described as such in the Slovenian patent SI 24141 A on the basis of application no. P-201200223, but also in international patent application no. WO 2014/014423 and European patent application EP 13753711.4, to which the applicant also refers in this application. he submits his application by reference or with reference to their previously listed applications.

Razen tega prijavitelju znano stanje tehnike predstavljajo žičnice iz US 4 005 779 A, GB 2 053 128 A, EP 0 161 437 A2, US 3 283 454 A, US 2 790 622 A in WO 2004/076255 Al.In addition, the prior art is represented by cableways of US 4,005,779 A, GB 2,053,128 A, EP 0 161,437 A2, US 3,283,454 A, US 2,790,622 A and WO 2004/076255 A1.

Gozdarska žičnica, ki je opisana v EP 0 161 437 A2, obsega mobilen pogonski sklop ter voziček, ki je premakljiv vzdolž nosilne vrvi in obsega vsaj dve nosilni vrvenici za naleganje vozička na nosilni vrvi in vodenje vozička med premikanjem vzdolž omenjene nosilne vrvi, kot tudi vsaj dve vodilni vrvenici, ki sta v vertikalni smeri žičnice razporejeni pod omenjenima nosilnima vrvenicama in sta prirejeni za vodenje povratne vrvi preko vozička, razen tega pa tudi podporno vrvenico, kije v vertikalni smeri žičnice razporejena pod in med omenjenima vodilnima vrvenicama in je predvidena za podprtje in vodenje vlečne vrvi vključno z vsakokrat razpoložljivim bremenom. Žičnica nadalje obsega nosilno vrv, ki poteka od pripadajočega bobna v ogrodju pogonskega sklopa preko preusmerjevalne vrvenice na stebru do prve fiksne točke na terenu, na katero je pripeta, pri čemer je omenjena nosilna vrv prirejena za zagotavljanje podpore in za vodenje vozička, namreč podpornih vrvenic vozička. Še nadalje žičnica obsega povratno vrv, ki poteka od pripadajočega bobna v ogrodju pogonskega sklopa preko preusmerjevalne vrvenice na stebru in preko vodilnih vrvenic na vozičku do nadaljnje preusmerjevalne vrvenice v neposredni bližini omenjene prve fiksne točke in od ondod nazaj proti vozičku, na katerega je pripeta. Poleg navedenega žičnica obsega tudi vlečno vrv, ki poteka od pripadajočega bobna v ogrodju pogonskega sklopa preko preusmerjevalne vrvenice na stebru in omenjene podporne vrvenice na vozičku ter naprej proti vsakokrat razpoložljivemu bremenu, s katerim je vlečna vrv po izbiri povezljiva. Razen tega žičnica obsega tudi vsaj dve napenjalni vrvi, ki potekata med napenjalno vrvenico na od podlage bolj oddaljenem koncu nosilnega stebra in vsaj dvema nadaljnjima fiksnima točkama, ki se nahajata na podlagi izven območja traktorja in pogonskega sklopa, prednostno vsaj približno v nasprotno smer od omenjene prve fiksne točke in primerno vsaksebi zaradi sidranja stebra v njegovem pokončnem položaju med vleko bremena.The forestry cableway described in EP 0 161 437 A2 comprises a mobile drive assembly and a trolley movable along the support rope and comprising at least two support ropes for the trolley to rest on the support rope and guide the trolley while moving along said support rope, as well as at least two guide ropes arranged in the vertical direction of the cableway under said support ropes and adapted to guide the return rope through the trolley, as well as a support rope which is arranged in the vertical direction of the cable under and between said guide ropes and is intended to support and guiding the tow rope including the load available at all times. The cableway further comprises a support rope extending from the associated drum in the drive assembly frame via a deflection rope on the column to the first fixed point on the ground to which it is attached, said support rope being adapted to provide support and guide the trolley, namely support ropes. trolley. Furthermore, the cableway comprises a return rope running from the associated drum in the drive assembly frame through the diverting rope on the column and through the guide ropes on the trolley to a further diverting rope in the immediate vicinity of said first fixed point and from there back to the trolley to which it is attached. In addition to the above, the cableway also comprises a tow rope running from the associated drum in the drive assembly frame through the deflection rope on the mast and said support rope on the trolley and onwards towards the load available to which the tow rope is optionally connected. In addition, the cableway comprises at least two tensioning ropes running between the tensioning rope at the end of the support column and at least two further fixed points located on the base outside the tractor and drivetrain area, preferably at least approximately in the opposite direction from said the first fixed points and suitable for each other due to the anchoring of the column in its upright position during towing of the load.

Sam pogonski sklop žičnice obsega nosilni steber, ki je na svojem od podlage bolj oddaljenem koncu opremljen s prosto vrtljivimi preusmerjevalnimi vrvenicami za vodenje nosilne vrvi za podpiranje in vodenje vzdolž omenjene nosilne vrvi premakljivega vozička, kot tudi za vodenje povratne vrvi za premikanje omenjenega vozička in obenem tudi za vodenje preko omenjenega vozička potekajoče vlečne vrvi za vleko vsakokratnega bremena. Pogonski sklop nadalje obsega tudi ogrodje z integriranimi navijalnimi bobni za navijanje oz. prejem nosilne vrvi, povratne vrvi in vlečne vrvi.The drive assembly of the cableway itself comprises a support column, which at its end further from the ground is equipped with freely rotating diverting ropes for guiding the support rope for supporting and guiding along said support rope of the movable trolley, as well as for guiding the return rope for moving the trolley. also for guiding a tow rope passing through said trolley to tow each load. The drive assembly further comprises a frame with integrated winding drums for winding or. receiving support rope, return rope and tow rope.

Prijavitelju je nadalje znano, daje pogonski sklop nameščen na podvozju s kolesi, sodobne komercialno dostopne tovrstne žičnice proizvajalcev gozdarskih vitlov in druge opreme pa so opremljene z vlečnim rudom, ki je členkasto povezano z omenjenim ogrodjem in nosilnim stebrom in je v osnovi predvideno za povezavo pogonskega sklopa s traktorjem zaradi vleke pogonskega sklopa po terenu in tudi za vsaj začasno zadrževanje pogonskega sklopa s pomočjo traktorja v vsakokrat izbranem položaju. Pri najsodobnejših znanih žičnicah je z omenjenim rudom členkasto povezan hidravlični cilinder, ki je po drugi strani členkasto povezljiv s tritočkovnim mehanizmom traktorja in s katerim je omogočeno nagibanje pogonskega sklopa s stebrom v vzdolžni smer žičnice, razen tega pa so tovrstne žičnice opremljene tudi s podvozjem s kolesoma, ki pa je prirejeno za premikanje pogonskega sklopa s stebrom in ogrodjem v smislu vleke s pomočjo traktorja po vsakokrat razpoložljivi podlagi. Omenjeno rudo med postavljanjem nosilnega stebra omogoča nagibanje stebra v vzdolžni smeri, pri čemer pa je sam steber tako med postavljanjem žičnice kot tudi kasneje med samo uporabo razporejen na odmiku od podlage, tako da se obremenitve s stebra na podlago prenašajo bodisi preko koles podvozja, ali pa kvečjemu preko ogrodja pogonskega sklopa, ki pa je pri omenjenih žičnicah zasnovano podobno kot pri gozdarskih vitlih, tako da je naleganje ogrodja na podlagi linijsko. Tovrstna rešitev kot rečeno omogoča nagibanje stebra v vzdolžni smeri, ne pa tudi v prečni smeri. V praksi žičnico pogosto postavljajo na neravnem terenu, zato je tovrstno podprtje razmeroma močno obremenjenega nosilnega stebra še zlasti brez možnosti niveliranja v prečni smeri razmeroma neugodno tako v pogledu same stabilnosti kot glede možnosti posedanja ali ugrezanja pod obremenitvijo, ki ji je med vleko bremena steber kasneje med uporabo izpostavljen.It is further known to the applicant that the drive assembly is mounted on a wheeled chassis, and modern commercially available lifts of forestry winches and other equipment are equipped with a drawbar, which is articulated to said frame and support column and is basically intended to connect the drive of the tractor assembly due to the traction of the powertrain on the ground and also for at least temporarily holding the powertrain by the tractor in the position selected in each case. In the most modern known lifts, a hydraulic cylinder is articulated to the said ore, which on the other hand is articulated to the three-point mechanism of the tractor and which enables tilting of the drive assembly with a column in the longitudinal direction of the lift, and such lifts are also equipped with a chassis. wheels, which is adapted to move the drive assembly with the column and frame in terms of traction by means of a tractor on each available surface. Said ore during the installation of the supporting column allows the column to be tilted in the longitudinal direction, whereby the column itself is distributed at a distance from the base both during the installation of the cable car and later during use, so that loads from the column to the base are transmitted either via chassis wheels, or but at most through the frame of the drive assembly, which in the mentioned lifts is designed similarly to the forestry winches, so that the bearing of the frame on the base is linear. This type of solution, as said, allows the column to be tilted in the longitudinal direction, but not in the transverse direction. In practice, the cableway is often placed on uneven terrain, so this kind of support of a relatively heavily loaded load-bearing column, especially without the possibility of leveling in the transverse direction, is relatively unfavorable both in terms of stability and the possibility of sitting or sinking under load. exposed during use.

Razen tega je v WO 2004/076255 Al opisana mobilna naprava s podpornim stebrom za postavitev klasične žičnice, pri kateri je nosilni steber podprt na štirih vsaksebi štrlečih teleskopskih nogah, s pomočjo katerih je možno vzdrževanje nosilnega stebra v pokončnem položaju, nagibanje oz. niveliranje stebra v vseh smereh in tudi premikanje omenjenega stebra po terenu. Tudi pri tovrstni rešitvi je sam steber razporejen na odmiku od podlage, razen tega pa naprava samohodna in potemtakem opremljena z lastnim pogonskim agregatom, predvidena pa je izključno za podpiranje nosilne in vlečne vrvi žičnice brez možnosti manipuliranja s samim bremenom. V ta namen je naprava lahko opremljena s posebno teleskopsko roko, s pomočjo katere je možno rokovanje z bremenom v razmeroma majhnem območju okoli same naprave.In addition, WO 2004/076255 A1 describes a mobile device with a support column for the installation of a conventional cableway, in which the support column is supported on four protruding telescopic legs, by means of which it is possible to maintain the support column in an upright position. leveling the column in all directions and also moving said column across the terrain. In this type of solution, the column itself is located at a distance from the ground, in addition, the device is self-propelled and therefore equipped with its own drive unit, and is designed exclusively to support the supporting and traction rope without the possibility of manipulating the load. For this purpose, the device can be equipped with a special telescopic arm, with the help of which it is possible to handle the load in a relatively small area around the device itself.

Gozdarska žičnica obsegaThe forestry cable car comprises

- mobilen pogonski sklop, ki je prirejen za vleko s pomočjo traktorja in ki je razstavljivo povezljiv po eni strani s tritočkovnim mehanizmom in po drugi strani s kardansko gredjo omenjenega traktorja, pri čemer omenjen pogonski sklop vključuje- a mobile drive unit adapted for towing by means of a tractor and which can be detachably connected on the one hand to a three-point mechanism and on the other hand to the PTO shaft of said tractor, said drive drive including

- teleskopsko zasnovan nosilni steber, ki je na svojem od podlage bolj oddaljenem koncu opremljen vsaj s sklopom prosto vrtljivih preusmerjevalnih vrvenic za vodenje nosilne vrvi za podpiranje in vodenje vzdolž omenjene nosilne vrvi premakljivega vozička in preko omenjenega vozička potekajoče vlečne vrvi za vleko bremena, po izbiri pa tudi povratne vrvi za premikanje omenjenega vozička;- a telescopically designed support column, at its end farther from the ground, provided at least with a set of freely rotating deflection ropes for guiding the support rope for supporting and guiding along the support rope of the movable trolley and the traction rope passing through said trolley, optionally as well as return ropes for moving said trolley;

- z omenjenim stebrom togo povezano ogrodje z integriranimi hidravlično s pomočjo kardanske gredi traktorja gnanimi navijalnimi bobni za navijanje oz. prejem nosilne vrvi, vlečne vrvi in po izbiri tudi povratne vrvi;- a rigidly connected frame with said pillar with hydraulically driven winding drums for winding or. receiving a supporting rope, a tow rope and, optionally, a return rope;

- z omenjenim stebrom in ogrodjem členkasto povezano vlečno rudo za povezavo pogonskega sklopa s traktorjem zaradi vleke pogonskega sklopa po terenu in tudi za vsaj začasno zadrževanje pogonskega sklopa s pomočjo traktorja v vsakokrat izbranem položaju; in- with said column and frame articulated traction ore for connecting the drive assembly to the tractor due to the traction of the drive assembly over the terrain and also for at least temporarily holding the drive assembly with the help of the tractor in each selected position; in

- podvozje, ki je prirejeno za premikanje pogonskega sklopa s stebrom in ogrodjem v smislu vleke s pomočjo traktorja po vsakokrat razpoložljivi podlagi;- a chassis adapted to move the propulsion assembly with the mast and frame in terms of tractor traction on the ground available in each case;

pri čemer tovrstna žičnica pa poleg omenjenega pogonskega sklopa nadalje obsega tudiwherein such a cable car further comprises, in addition to said drive assembly

- voziček, ki je premakljiv vzdolž omenjene nosilne vrvi in obsega vsaj dve nosilni vrvenici za naleganje vozička na nosilni vrvi in vodenje vozička med premikanjem vzdolž omenjene nosilne vrvi, kot tudi podporno vrvenico, ki je predvidena za podprtje in vodenje vlečne vrvi vključno z vsakokrat razpoložljivim bremenom,- a trolley movable along said support rope and comprising at least two support ropes for resting the trolley on the support rope and guiding the trolley while moving along said support rope, as well as a support rope intended to support and guide the tow rope including the one available at all times burden,

- nosilno vrv, ki poteka od pripadajočega bobna v ogrodju pogonskega sklopa preko preusmerjevalne vrvenice na stebru do prve fiksne točke na terenu, na katero je pripeta, pri čemer je omenjena nosilna vrv prirejena za zagotavljanje podpore in za vodenje vozička, namreč podpornih vrvenic vozička;- a supporting rope extending from the associated drum in the powertrain frame through the deflection rope on the column to the first fixed point on the ground to which it is attached, said support rope being adapted to provide support and guide the trolley, namely the trolley support ropes;

- vlečno vrv, ki poteka od pripadajočega bobna v ogrodju pogonskega sklopa preko preusmerjevalne vrvenice na stebru in omenjene podporne vrvenice ter med vodilnima vrvenicama na vozičku naprej proti vsakokrat razpoložljivemu bremenu, s katerim je vlečna vrv po potrebi povezljiva;- a tow rope running from the associated drum in the drive assembly frame through the diverting rope on the mast and said support rope and between the guide ropes on the trolley forward towards the load available at any time to which the tow rope can be connected if necessary;

- po izbiri povratno vrv, ki poteka od pripadajočega bobna v ogrodju pogonskega sklopa preko preusmerjevalne vrvenice na stebru in preko vodilnih vrvenic na vozičku do nadaljnje preusmerjevalne vrvenice v neposredni bližini omenjene prve fiksne točke in od ondod nazaj proti vozičku, na katerega je pripeta;- optionally, a return rope extending from the associated drum in the drive assembly frame through the diverting rope on the column and through the guide ropes on the trolley to a further diverting rope in the immediate vicinity of said first fixed point and from there back to the trolley to which it is attached;

razen tega pa tudibesides

- vsaj dva kraka napenjalne vrvi, ki potekata med napenjalno vrvenico, ki je predvidena na od podlage bolj oddaljenem koncu nosilnega stebra, in vsaj dvema nadaljnjima fiksnima točkama, ki se nahajata na podlagi izven območja traktorja in pogonskega sklopa, in sicer prednostno vsaj približno v nasprotno smer od omenjene prve fiksne točke in primemo vsaksebi zaradi sidranja nosilnega stebra v njegovem pokončnem ali primemo nagnjenem položaju med vleko bremena, po izbiri pa tudi vsaj eno podporo za podpiranje nosilne vrvi v območju med omenjenim pogonskim sklopom in omenjeno prvo fiksno točko, med katerima je napeta omenjena nosilna vrv.- at least two arms of the tensioning rope running between the tensioning rope provided at the end of the support column further from the ground and at least two further fixed points located on the ground outside the tractor and powertrain area, preferably at least approximately in opposite direction from said first fixed point and gripping each other due to the anchoring of the supporting column in its upright or inclined position during towing of the load, and optionally at least one support for supporting the supporting rope in the area between said drive assembly and said first fixed point. said support rope is tensioned.

Po izumu je predvideno, da omenjeni voziček poleg ogrodja in vsaj dveh nosilnih vrvenic, s pomočjo katerih je voziček držan na nosilni vrvi in premakljiv vzdolž lete, in omenjene podporne vrvenice obsega tudiAccording to the invention, it is envisaged that said trolley, in addition to the frame and at least two supporting ropes by means of which the trolley is held on the supporting rope and movable along the flight, and said support ropes also comprises

- pogonsko sredstvo, ki je togo povezano z omenjeno podporno vrvenico in deluje bodisi kot elektromotor ali kot generator električne energije;- a driving means which is rigidly connected to said support rope and acts either as an electric motor or as a generator of electricity;

- krmilno enoto,- control unit,

- akumulator električne energije,- electricity accumulator,

- prvo zavoro, ki je razporejena med omenjenima nosilnima vrvenicama in prirejena za sodelovanje z nosilno vrvjo v smislu blokiranja premikanja vozička relativno glede na nosilno vrv, in- a first brake arranged between said support ropes and adapted to cooperate with the support rope in terms of blocking the movement of the trolley relative to the support rope, and

- drugo zavoro, ki je razporejena v bližini podporne vrvenice in prirejena za blokiranje premikanja vlečne vrvi relativno glede na voziček,- a second brake located close to the support rope and adapted to block the movement of the tow rope relative to the trolley,

- hidravlični sklop, ki je krmiljen z omenjeno krmilno enoto in predviden za upravljanje omenjene prve zavore in druge zavore.- a hydraulic assembly controlled by said control unit and provided for operating said first brake and second brake.

Prva zavora vozička žičnice je torej prirejena za preprečevanje premikanja vozička vzdolž nosilne vrvi in obsega z okrovom vozička žičnice togo povezan okrov z vertikalnima, namreč med uporabo žičnice v vertikalni smeri prečno glede na nosilno vrv potekajočima in med seboj v vzdolžni smeri nosilne vrvi razmaknjenima vodiloma, v omenjenih vodilih pa je v smeri proti nosilni vrvi ali vstran od omenjene nosilne vrvi premakljivo vstavljen zavorni sklop, obsegajoč premakljivo zavorno čeljust, nepremakljivo zavorno čeljust in hidravlični cilinder, pri čemer sta omenjeni zavorni čeljusti razporejeni v horizontalni ravnim vozička med uporabo žičnice in diametralno glede na nosilno vrv druga drugi nasproti in vsaka na svoji strani nosilne vrvi, pri čemer je premakljiva zavorna čeljust mehansko povezana s hidravličnim cilindrom, s pomočjo katerega je premakljiva po potrebi v smeri proti nepremakljivi zavorni čeljusti ali vstran od nje;The first brake of the cableway trolley is therefore adapted to prevent the trolley from moving along the support rope and comprises a rigidly connected housing with the cableway trolley, namely during the use of the cableway in a vertical direction transverse to the support rope and in the longitudinal direction of the support rope. in said guides, a brake assembly comprising a movable brake caliper, a fixed brake caliper and a hydraulic cylinder is movably inserted in the direction of the support rope or away from said support rope, said brake calipers being arranged in a horizontal plane of the trolley with respect to the cable car and the cable car. to the support rope opposite each other and each on its side of the support rope, the movable brake caliper being mechanically connected to a hydraulic cylinder by means of which it is movable, if necessary, in the direction of or away from the fixed brake caliper;

in pri čemer je hidravlični cilinder preko krmilne enote hidravlično povezan s hidravlično enoto, in pri čemer je nepremakljiva zavorna čeljust v omenjen zavorni sklop vgrajena na tak način, da je na odmiku od omenjene premakljive zavorne čeljusti in hidravličnega cilindra držana s pomočjo niza ploščatih lamel, ki so med seboj togo povezane z vijaki.and wherein the hydraulic cylinder is hydraulically connected to the hydraulic unit via a control unit, and wherein the fixed brake caliper is mounted in said brake assembly in such a way that it is held at a distance from said movable brake caliper and the hydraulic cylinder by a series of flat lamellae, which are rigidly connected to each other by screws.

Pri tem je zavorni sklop po omenjenih vodilih premakljiv s pomočjo vsaj dveh hidravličnih cilindrov, izmed katerih je vsak mehansko povezan po eni strani z okrovom in po drugi strani z zavornim sklopom zavore in izmed katerih je vsaj eden razporejen v bližini prvega vodila, vsaj eden pa v bližini drugega vodila, pri čemer je vsak izmed omenjenih hidravličnih cilindrov preko krmilne enote hidravlično povezan s hidravličnim sklopom vozička žičnice.In this case, the brake assembly is movable along said guides by means of at least two hydraulic cylinders, each of which is mechanically connected on the one hand to the housing and on the other hand to the brake assembly and at least one of which is arranged near the first guide and at least one in the vicinity of the second guide, each of said hydraulic cylinders being hydraulically connected to the hydraulic assembly of the cableway trolley via a control unit.

Pri prednostni izvedbi izuma sta nadalje premakljiva zavorna čeljust in nepremakljiva zavorna čeljust na svojih druga proti drugi obrnjenih površinah opremljeni z vsaksebi obrnjenima vdolbinama v obliki črke V, ki sta dimenzijsko prirejeni za sodelovanje z nosilno vrvjo v smislu stiskanja in sočasnega oklepanja omenjene vrvi zaradi preprečevanja premikanja vozička žičnice relativno glede na omenjeno nosilno vrv.In a preferred embodiment of the invention, the movable brake caliper and the fixed brake caliper are provided on their facing surfaces with V-shaped recesses facing each other, which are dimensionally adapted to cooperate with the support rope in terms of compression and simultaneous clamping of said rope to prevent movement. the carriage trolley relative to said support rope.

Izum bo v nadaljevanju podrobneje obrazložen s primerom izvedbe, ki je ponazorjen na priloženi skici, kjerThe invention will be explained in more detail below with an example of an embodiment, which is illustrated in the attached sketch, where

Sl. 1 shematično ponazarja gozdarsko žičnico vključno s traktorjem;Sl. 1 schematically illustrates a forestry cableway including a tractor;

Sl. 2 predstavlja voziček gozdarske žičnice v prostorskem pogledu;Sl. 2 is a spatial view of a forestry cable car;

Sl. 3 predstavlja shematično ponazorjen voziček po Sl. 2;Sl. 3 is a schematically illustrated trolley according to FIG. 2;

Sl. 4 predstavlja zavoro za preprečevanje premikanja vozička po nosilni vrvi v prostorskem pogledu,Sl. 4 represents a brake to prevent the trolley from moving along the supporting rope in a spatial view,

Sl. 5 predstavlja zavoro po Sl. 4 v narisu,Sl. 5 represents the brake according to FIG. 4 in the sketch,

Sl. 6 pa omenjeno zavoro v prerezu v ravnini A - A po Sl. 5.Sl. 6 shows said brake in cross section in the plane A - A according to FIG. 5.

Gozdarska žičnica, kakršna je prikazana na Sl. 1, obsega mobilen pogonski sklop 1, ki je prirejen za vleko s pomočjo traktorja T in ki je razstavljivo povezljiv po eni strani s tritočkovnim mehanizmom in po drugi strani s kardansko gredjo omenjenega traktorja T. Omenjen pogonski sklop 1 vključujeThe forestry cable car, as shown in FIG. 1 comprises a mobile drive assembly 1 adapted for traction by means of a tractor T and which can be detachably connected on the one hand to a three-point mechanism and on the other hand to the PTO shaft of said tractor T. Said drive assembly 1 includes

- teleskopsko zasnovan nosilni steber 11, ki je na svojem od podlage P bolj oddaljenem koncu 11' opremljen vsaj s sklopom prosto vrtljivih preusmerjevalnih vrvenic 111, 112, 113 za vodenje nosilne vrvi VN za podpiranje in vodenje vzdolž omenjene nosilne vrvi VN premakljivega vozička 2 in preko omenjenega vozička 2 potekajoče vlečne vrvi VV za vleko bremena B, po izbiri pa tudi povratne vrvi VP za premikanje omenjenega vozička 2;- a telescopically designed support column 11 which is provided at its end further from the base P 11 'at least with a set of freely rotating deflection ropes 111, 112, 113 for guiding the support rope VN for supporting and guiding along said support rope VN the movable trolley 2 and through said trolley 2 a tow rope VV for towing a load B extending, and optionally also a return rope VP for moving said trolley 2;

- z omenjenim stebrom 11 togo povezano ogrodje 12 z integriranimi hidravlično s pomočjo kardanske gredi traktorja T gnanimi navijalnimi bobni 121, 122, 123 za navijanje oz. prejem nosilne vrvi VN, vlečne vrvi V V in po izbiri povratne vrvi VP;- a rigidly connected frame 12 with said column 11 with hydraulically driven winding drums 121, 122, 123 for winding resp. receiving the VN support rope, the V V traction rope and, optionally, the VP return rope;

- z omenjenim stebrom 11 in ogrodjem 12 členkasto povezano vlečno rudo 124 za povezavo pogonskega sklopa 1 s traktorjem T zaradi vleke pogonskega sklopa 1 po terenu in tudi za vsaj začasno zadrževanje pogonskega sklopa 1 s pomočjo traktorja T v vsakokrat izbranem položaju; in- with said column 11 and the frame 12 articulated traction ore 124 for connecting the drive assembly 1 to the tractor T due to traction of the drive assembly 1 in the field and also for at least temporarily holding the drive assembly 1 by means of the tractor T in each selected position; in

- podvozje 13, kije prirejeno za premikanje pogonskega sklopa 1 s stebrom 11 in ogrodjem 12 v smislu vleke s pomočjo traktorja T po vsakokrat razpoložljivi podlagi P.- a chassis 13 adapted to move the powertrain 1 with the mast 11 and the frame 12 in terms of traction by means of a tractor T over the ground P available in each case.

Poleg omenjenega pogonskega sklopa 1 pa žičnica nadalje obsega tudiIn addition to said drive assembly 1, the cableway further comprises

- voziček 2, ki je posebej prikazan na Sl. 2 in je premakljiv vzdolž omenjene nosilne vrvi VN in obsega vsaj dve nosilni vrvenici 2 Γ, 21 za naleganje vozička 2 na nosilni vrvi VN in vodenje vozička 2 med premikanjem vzdolž omenjene nosilne vrvi VN, kot tudi podporno vrvenico 23, ki je predvidena za podprtje in vodenje vlečne vrvi VV vključno z vsakokrat razpoložljivim bremenom B;- trolley 2, shown separately in FIG. 2 and is movable along said VN support rope and comprises at least two support ropes 2 Γ, 21 for resting the trolley 2 on the VN support rope and guiding the trolley 2 while moving along said VN support rope, as well as a support rope 23 to be supported and guiding the tow rope VV including the load B available in each case;

- nosilno vrv VN, ki poteka od pripadajočega bobna 121 v ogrodju 12 pogonskega sklopa 1 preko preusmerjevalne vrvenice 111 na stebru 11 do prve fiksne točke Tl na terenu, na katero je pripeta, pri čemer je omenjena nosilna vrv VN prirejena za zagotavljanje podpore in za vodenje vozička 2, namreč podpornih vrvenic 2Γ, 21 vozička 2;- a support rope VN extending from the associated drum 121 in the frame 12 of the drive assembly 1 through the diverting rope 111 on the column 11 to the first fixed point T1 on the ground to which it is attached, said carrier rope VN adapted to provide support and for guiding trolley 2, namely support ropes 2Γ, 21 trolley 2;

- vlečno vrv VV, ki poteka od pripadajočega bobna 122 v ogrodju 12 pogonskega sklopa 1 preko preusmerjevalne vrvenice 112 na stebru 11 in omenjene podporne vrvenice 22 ter med vodilnima vrvenicama 22', 22 na vozičku 2 naprej proti vsakokrat razpoložljivemu bremenu B, s katerim je vlečna vrv V V po potrebi povezljiva;- a towing rope VV extending from the associated drum 122 in the frame 12 of the drive assembly 1 through the diverting rope 112 on the column 11 and said support rope 22 and between the guide ropes 22 ', 22 on the trolley 2 forward towards the load B available at any time. tow rope VV connectable if necessary;

- po izbiri povratno vrv VP, ki poteka od pripadajočega bobna 123 v ogrodju 12 pogonskega sklopa 1 preko preusmerjevalne vrvenice 113 na stebru 11 in preko vodilnih vrvenic 24', 24 na vozičku 2 do nadaljnje preusmerjevalne vrvenice v neposredni bližini omenjene prve fiksne točke Tl in od ondod nazaj proti vozičku 2, na katerega je pripeta; razen tega pa tudi- optionally a return rope VP extending from the associated drum 123 in the frame 12 of the drive assembly 1 via the diverting rope 113 on the column 11 and via the guide ropes 24 ', 24 on the trolley 2 to a further diverting rope in the immediate vicinity of said first fixed point T1 and thence back to the trolley 2 to which it is attached; besides

- vsaj dva kraka VT1, VT2 napenjalne vrvi, ki potekata med napenjalno vrvenico 110, ki je predvidena na od podlage P bolj oddaljenem koncu 11' nosilnega stebra- at least two arms VT1, VT2 of the tensioning rope running between the tensioning rope 110 provided at the end of the support column 11 'farther from the base P

11, in vsaj dvema nadaljnjima fiksnima točkama T2, T3, ki se nahajata na podlagi P izven območja traktorja T in pogonskega sklopa 1, in sicer prednostno vsaj približno v nasprotno smer od omenjene prve fiksne točke Tl in primemo vsaksebi zaradi sidranja nosilnega stebra 11 v njegovem pokončnem ali primerno nagnjenem položaju med vleko bremena B, po izbiri pa tudi vsaj eno podporo 13 za podpiranje nosilne vrvi VN v območju med omenjenim pogonskim sklopom 1 in omenjeno prvo fiksno točko Tl, med katerima je napeta omenjena nosilna vrv VN.11, and at least two further fixed points T2, T3, located on the base P outside the area of the tractor T and the drive assembly 1, preferably at least approximately in the opposite direction from said first fixed point T1 and gripping each other due to the anchoring of the support column 11 in its upright or suitably inclined position during towing of the load B, and optionally also at least one support 13 for supporting the VN support rope in the area between said drive assembly 1 and said first fixed point T1, between which said VN support rope is tensioned.

Omenjeni voziček 2 (Sl. 3) poleg ogrodja 20 in vsaj dveh nosilnih vrvenic 21', 21, s pomočjo katerih je voziček 2 držan na nosilni vrvi VN in premakljiv vzdolž le-te, in podporne vrvenice 23 obsega tudi pogonsko sredstvo 230, kije togo povezano z omenjeno podporno vrvenico 23 in deluje bodisi kot elektromotor ali kot generator električne energije, krmilno enoto 25, akumulator 27 za akumuliranje električne energije, zavori 28, 29 in hidravlični sklop 26, ki je krmiljen z omenjeno krmilno enoto 25 in predviden vsaj za upravljanje omenjenih zavor 28, 29.Said trolley 2 (Fig. 3) in addition to the frame 20 and at least two support ropes 21 ', 21, by means of which the trolley 2 is held on the support rope VN and movable along it, and the support rope 23 also comprises a drive means 230 which rigidly connected to said support rope 23 and acting either as an electric motor or as a power generator, a control unit 25, a battery 27 for storing electricity, brakes 28, 29 and a hydraulic assembly 26 controlled by said control unit 25 and provided at least for operating said brakes 28, 29.

Kot je razvidno na Sl. 3, je prva zavora 28 razporejena med omenjenima nosilnima vrvenicama 2Γ, 21 in prirejena za sodelovanje z nosilno vrvjo VN v smislu blokiranja premikanja vozička 2 relativno glede na nosilno vrv VN. Druga zavora 29 je razporejena v bližini podporne vrvenice 23 in prirejena za blokiranje premikanja vlečne vrvi VV relativno glede na voziček 2. Omenjena druga zavora 29 je v prikazanem primeru po Sl. 3 opremljena s senzorjema Sl, S2, ki sta v vzdolžni smeri vlečne vrvi VV razporejena vsak na svoji strani sklopa 290 zavornih čeljusti, ki je za vnaprej določeno razdaljo premakljiv med obema svojima končnima položajema sem ter tja v smeri vlečne vrvi VV. Omenjena senzorja Sl, S2 sta prirejena za zaznavanje vsakokratnega položaja sklopa 280 zavornih čeljusti. Kadar namreč podporna vrvenica 23 s pogonskim sredstvom 230 v funkciji elektromotorja pomika vlečno vrv VV v smeri od pripadajočega bobna 122 proti bremenu B, se omenjeni sklop 290 zavornih čeljusti nahaja v svojem prvem končnem položaju. Nasprotno pa se v primeru, ko se podporna vrvenica 23 skupaj s pogonskim sredstvom 230 v funkciji generatorja med premikanjem vlečne vrvi VV proti pripadajočemu bobnu 122 in navijanjem omenjene vrvi VV na omenjeni boben 122, omenjeni sklop 290 zavornih čeljusti nahaja v svojem drugem končnem položaju. S tem krmilna enota zahvaljujoč senzorjema Sl, S2 zaznava, če pogonsko sredstvo energijo porablja ali generira. Krmilna enota 25 je v danem primeru, kar pa v splošnem ni obvezno, predvidena vsaj za krmiljenje pogonskega sredstva 230 in hidravličnega sklopa 26, in sicer v odvisnosti od signalov, prejetih s strani vsaj enega izmed senzorjev Sl, S2 za zaznavanje položaja sklopa 290 zavornih čeljusti omenjene druge zavore 29. Z omenjeno krmilno enoto 25 je upravljan hidravlični sklop 26, ki je električno napajan preko krmilne enote 25 iz akumulatorja 27 in prirejen za aktiviranje oz. deaktiviranje omenjene prve zavore 28 in omenjene druge zavore 29. Hidravlični sklop 26 je zasnovan na strokovnjakom znan način in sestoji iz črpalke, rezervoarja, cilindrov ter vsakokrat potrebnih ventilov oz. razvodnikov, ki na Sl. 3 niso posebej prikazani. Omenjeni akumulator 27 je prav tako preko omenjene krmilne enote 25 električno povezan po eni strani s hidravličnim sklopom 26 in po drugi strani s pogonskim sredstvom 230 podporne vrvenice 23 zaradi bodisi dovajanja električne energije omenjenemu pogonskemu sredstvu 230, kadar je slednje v funkciji elektromotorja, ali prejemanja električne energije iz omenjenega pogonskega sredstva 230, kadar je slednje v funkciji generatorja.As can be seen in FIG. 3, the first brake 28 is arranged between said support ropes 2Γ, 21 and adapted to cooperate with the support rope VN in terms of blocking the movement of the trolley 2 relative to the support rope VN. The second brake 29 is arranged in the vicinity of the support rope 23 and adapted to block the movement of the tow rope VV relative to the trolley 2. Said second brake 29 is in the illustrated example according to FIG. 3 are equipped with sensors Sl, S2 arranged in the longitudinal direction of the tow rope VV, each on its own side of the brake shoe assembly 290, movable for a predetermined distance between its two end positions back and forth in the direction of the tow rope VV. Said sensors Sl, S2 are adapted to detect the respective position of the brake caliper assembly 280. Namely, when the support rope 23 with the driving means 230 in the function of the electric motor moves the traction rope VV in the direction from the associated drum 122 towards the load B, said set 290 of the brake shoes is in its first end position. Conversely, in the case where the support rope 23 together with the drive means 230 in the function of the generator between moving the tow rope VV towards the associated drum 122 and winding said rope VV on said drum 122, said brake shoe assembly 290 is in its second end position. In this way, thanks to the sensors Sl, S2, the control unit detects if the drive means consuming or generating energy. The control unit 25 is optionally, but not necessarily, provided at least for controlling the drive means 230 and the hydraulic assembly 26, depending on the signals received from at least one of the sensors Sl, S2 for detecting the position of the brake assembly 290. the calipers of said second brake 29. Said control unit 25 controls a hydraulic assembly 26 which is electrically supplied via the control unit 25 from the battery 27 and adapted to activate or actuate. deactivating said first brake 28 and said second brake 29. The hydraulic assembly 26 is designed in a manner known to those skilled in the art and consists of a pump, a tank, cylinders and the valves required in each case. distributors, which in Figs. 3 are not shown separately. Said battery 27 is also electrically connected via said control unit 25 on the one hand to the hydraulic assembly 26 and on the other hand to the drive means 230 of the support rope 23 due to either supplying electricity to said driving means 230 when the latter is in the function of an electric motor. electricity from said propellant 230 when the latter is in the function of a generator.

Vodilni vrvenici 24', 24' vlečne vrvi VV sta predvideni za usmerjanje vlečne vrvi VV proti podporni vrvenici 23. Potek vlečne vrvi VV med bremenom B in vozičkom 2 se namreč med uporabo žičnice vseskozi spreminja v odvisnosti od konfiguracije podlage P in položaja bremena B. Po izumu je predvideno (Sl. 4 in 5), da sta omenjeni vodilni vrvenici 24', 24 vsaka zase in na medsebojnem razmiku prosto vrtljivo vgrajeni v drsniku 240, ki je prosto premakljiv vzdolž ukrivljene kulise 24, katere ukrivljenost je prirejena med vleko bremena B možnim odklonom vlečne vrvi VV, in na odmiku od podporne vrvenice 23 v smeri poteka omenjene vlečne vrvi W. Zahvaljujoč tovrstni zasnovi so obremenitve med vodilnima vrvenicama 24', 24 in vlečno vrvjo VV zaradi spreminjajočega se poteka slednje praktično eliminirane, s tem pa se znatno zniža upor med premikanjem vlečne vrvi VV, s čimer se zmanjša poraba za to potrebne energije.The guide ropes 24 ', 24' of the tow rope VV are provided for directing the tow rope VV towards the support rope 23. The course of the tow rope VV between load B and trolley 2 varies during the use of the cableway depending on the configuration of the base P and the position of load B. According to the invention, it is provided (Figs. 4 and 5) that said guide ropes 24 ', 24 are individually and rotatably mounted in a slider 240 which is freely movable along a curved slide 24, the curvature of which is adjusted during towing of the load. B possible deflection of the tow rope VV, and at a distance from the support rope 23 in the direction of said tow rope W. Thanks to this design, the loads between the guide ropes 24 ', 24 and the tow rope VV due to the changing course of the latter are virtually eliminated. significantly reduces the resistance during the movement of the tow rope VV, thereby reducing the consumption of energy required for this.

Po izbiri je nadalje lahko predviden vsaj še en nadaljnji generator 230' električne energije, ki je prirejen za sodelovanje z nosilno vrvjo VN med premikanjem vozička 2 vzdolž omenjene nosilne vrvi VN in električno povezan z omenjenim akumulatorjem 27. Ta nadaljnji generator 230' ustvarja električno energijo in jo posreduje akumulatorju 27 med premikanjem vozička 2 sem ter tja vzdolž nosilne vrvi VN. Zahvaljujoč opisani zasnovi je v takem primeru voziček 2 kompakten in tudi energetsko popolnoma avtonomen. Energijo, ki je potrebna za vrtenje podporne vrvenice 23 med odvijanjem vlečne vrvi VV z bobna 122 in energijo, ki je potrebna za delovanje hidravličnega sklopa 26 in posledično zavor 28, 29, namreč ustvari omenjeno pogonsko sredstvo, kadar je v funkciji generatorja, po izbiri pa v kombinaciji z vsaj enim nadaljnjim generatorjem 230', ki energijo pridobiva na osnovi premikanja vozička 2 po nosilni vrvi VN.Optionally, at least one further electricity generator 230 'may be provided, adapted to cooperate with the HV support rope while moving the trolley 2 along said HV support rope and electrically connected to said battery 27. This further generator 230' generates electricity. and transmits it to the accumulator 27 while moving the trolley 2 back and forth along the support rope VN. Thanks to the described design, in such a case, the trolley 2 is compact and also completely autonomous in terms of energy. The energy required for the rotation of the support rope 23 during the unwinding of the tow rope VV from the drum 122 and the energy required for the operation of the hydraulic assembly 26 and consequently the brakes 28, 29 is generated by said drive means when in the function of a generator, optionally and in combination with at least one further generator 230 ', which generates energy by moving the trolley 2 along the support rope VN.

Po izumu je predvideno, da omenjena prva zavora 28 obsega z okrovom 20 vozička 2 žičnice (Sl. 2) togo povezan okrov 281 (Sl. 6) z vertikalnima, namreč med uporabo žičnice v vertikalni smeri prečno glede na nosilno vrv VN potekajočima in med seboj v vzdolžni smeri nosilne vrvi VN razmaknjenima vodiloma 28Γ, 281, v omenjenih vodilih 28Γ, 281 pa je v smeri proti nosilni vrvi VN ali vstran od omenjene nosilne vrvi VN premakljivo vstavljen zavorni sklop 280.According to the invention, it is envisaged that said first brake 28 comprises a housing 281 (Fig. 6) rigidly connected to the vertical of the cable car trolley 2 (Fig. 2), namely during the use of the cable in the vertical direction transverse to the HV rope. a brake assembly 280 is movably inserted in the longitudinal direction of the support rope VN with the guides 28Γ, 281 spaced apart, and in said guides 28Γ, 281 in the direction towards the support rope VN or away from said support rope VN.

Omenjen zavorni sklop 280 obsega premakljivo zavorno čeljust 2801, nepremakljivo zavorno čeljust 2802 in hidravlični cilinder 2803, pri čemer sta omenjeni zavorni čeljusti 2801, 2802 razporejeni v horizontalni ravnini vozička 2 med uporabo žičnice in diametralno glede na nosilno vrv VN druga drugi nasproti in vsaka na svoji strani nosilne vrvi VN.Said brake assembly 280 comprises a movable brake caliper 2801, a fixed brake caliper 2802 and a hydraulic cylinder 2803, said brake calipers 2801, 2802 being arranged in the horizontal plane of the trolley 2 during use of the cableway and diametrically with respect to the HV support rope opposite each other and each its side of the VN support rope.

Premakljiva zavorna čeljust 2801 je mehansko povezana s hidravličnim cilindrom 2803, s pomočjo katerega je premakljiva po potrebi v smeri proti nepremakljivi zavorni čeljusti 2802 ali vstran od nje.The movable brake caliper 2801 is mechanically connected to the hydraulic cylinder 2803, by means of which it is movable, if necessary, in the direction of or away from the fixed brake caliper 2802.

Hidravlični cilinder 2803 za premikanje premakljive zavorne čeljusti 2801 je preko krmilne enote 25 hidravlično povezan s hidravlično enoto 26 vozička 2 žičnice.The hydraulic cylinder 2803 for moving the movable brake caliper 2801 is hydraulically connected via the control unit 25 to the hydraulic unit 26 of the trolley 2 of the cable car.

Nepremakljiva zavorna čeljust 2802 je v omenjen zavorni sklop 280 vgrajena na tak način, da je na odmiku od omenjene premakljive zavorne čeljusti 2801 in hidravličnega cilindra 2803 držana s pomočjo niza oz. paketa ploščatih lamel 2804', 2804, 2804', 2804, ki so med seboj togo povezane z vijaki 2805. Zaradi konzolnega vpetja omenjene nepremakljive zavorne čeljusti 2802 zavornem sklopu 280 in razmeroma velike oddaljenosti od premakljive čeljusti 2801, ki je potrebna zaradi vstavljanja nosilne vrvi VN med čeljusti 2801, 2802, je namreč pritrditev nepremakljive čeljusti 2802 v pogledu obremenitev izjemno zahtevna. Razen tega tudi hidravlični cilinder 2803 omogoča doseganje razmeroma velike sile za premikanje premakljive čeljusti 2801 v smeri proti nosilni vrvi VN in posledično proti nepremakljivi zavorni čeljusti 2802, ki pa jih tovrstna zasnova vpetja nepremakljive čeljusti 2802 dobro prenese. Nadalje je po izumu predvideno, da sta premakljiva zavorna čeljust 2801 in nepremakljiva zavorna čeljust 2802 na svojih druga proti drugi obrnjenih površinah 280 Γ, 2802' opremljeni z vsaksebi obrnjenima vdolbinama 2802', 2802 v obliki črke V, ki sta dimenzijsko prirejeni za sodelovanje z nosilno vrvjo VN v smislu stiskanja in sočasnega oklepanja omenjene vrvi VN zaradi preprečevanja premikanja vozička 2 žičnice relativno glede na omenjeno nosilno vrv VN, s čimer se zagotovi za zaviranje potrebno trenje med zavornima čeljustima 2801, 2802 in nosilno vrvjo VN žičnice.The fixed brake caliper 2802 is integrated in said brake assembly 280 in such a way that it is held at a distance from said movable brake caliper 2801 and the hydraulic cylinder 2803 by means of a string or. a set of flat lamellae 2804 ', 2804, 2804', 2804 rigidly connected to each other by screws 2805. Due to the cantilever mounting of said fixed brake caliper 2802 to the brake assembly 280 and the relatively large distance from the movable caliper 2801 required for inserting the support rope VN between the jaws 2801, 2802, the attachment of the fixed jaw 2802 is extremely demanding in terms of loads. In addition, the hydraulic cylinder 2803 makes it possible to achieve a relatively large force for moving the movable caliper 2801 in the direction of the support rope VN and consequently towards the fixed brake caliper 2802, which such a fixed caliper design 2802 tolerates well. Furthermore, according to the invention, the movable brake caliper 2801 and the fixed brake caliper 2802 are provided on their facing surfaces 280 Γ, 2802 'with mutually facing V-shaped recesses 2802', 2802, which are dimensionally adapted to cooperate with a VN support rope in terms of compressing and simultaneously clamping said VN rope to prevent the carriage trolley 2 from moving relative to said VN support rope, thereby providing the necessary friction for braking between the brake shoes 2801, 2802 and the HV cable rope support rope.

Zavorni sklop 280 je po omenjenih vodilih 281', 281 premakljiv s pomočjo vsaj dveh hidravličnih cilindrov 2806', 2806, izmed katerih je vsak mehansko povezan po eni strani z okrovom 281 in po drugi strani z zavornim sklopom 280 zavore 28. Vsaj eden izmed cilindrov 2806', 2806 je razporejen v bližini prvega vodila 281', vsaj eden pa v bližini drugega vodila 281. Pri tem je vsak izmed omenjenih hidravličnih cilindrov 2806', 2806 preko krmilne enote 25 hidravlično povezan s hidravličnim sklopom 26 vozička 2 žičnice. Na ta način se med premikanja vozička 2 žičnice vzdolž nosilne vrvi VN zavorni sklop (280) lahko umakne oviram na nosilni vrvi VN, še zlasti npr. podpori 3 nosilne vrvi VN (Sl. 1).The brake assembly 280 is movable along said guides 281 ', 281 by means of at least two hydraulic cylinders 2806', 2806, each of which is mechanically connected on the one hand to the housing 281 and on the other hand to the brake assembly 280 of the brake 28. At least one of the cylinders 2806 ', 2806 are arranged near the first guide 281' and at least one near the second guide 281. Each of said hydraulic cylinders 2806 ', 2806 is hydraulically connected to the hydraulic assembly 26 of the cable car trolley 2 via the control unit 25. In this way, while moving the trolley 2 of the cable car along the support rope HV, the brake assembly (280) can be removed by obstacles on the support rope HV, in particular e.g. support 3 HV support ropes (Fig. 1).

Claims

PATENT APPLICATIONS

1. A forestry cableway comprising

- a mobile drive assembly (1) adapted for traction by means of a tractor (T) and which can be detachably connected on the one hand to a three-point mechanism and on the other hand to the PTO shaft of said tractor (T), said drive drive being ) includes

- a telescopically designed support column (11) which is provided at its end farther from the base (P) with at least a set of freely rotating deflection ropes (111, 112, 113) for guiding the support rope (HV) for support and guidance along said support rope (VN) of the movable trolley (2) and over the trolley (2) extending the traction rope (VV) for towing the load (B), and optionally also the return rope (VP) for moving said trolley (2);

- a rigidly connected frame (12) with said column (12) with hydraulically driven winding drums (121, 122, 123) for winding or receiving a support rope (VN), a tow rope (VV) and optionally a return rope (VP);

- with said column (11) and frame (12) articulated traction shaft (124) for connecting the drive assembly (1) to the tractor (T) due to traction of the drive assembly (1) over the terrain and also for at least temporary restraint of the drive assembly (1) ) by means of a tractor (T) in each position selected; in

- a chassis (13) adapted to move the drive assembly (1) with a column (11) and a frame (12) in terms of traction by means of a tractor (T) on each available base (P);

wherein such a cableway further comprises, in addition to said drive assembly (1)

- a trolley (2) movable along said support rope (VN) and comprising at least two support ropes (2Γ, 21) for resting the trolley (2) on the support rope (VN) and guiding the trolley (2) while moving along said support rope a rope (VN) as well as a support rope (23) intended to support and guide the tow rope (VV) including the load (B) available at all times;

- a supporting rope (VN) extending from the associated drum (121) in the frame (12) of the drive assembly (1) via the diverting rope (111) on the column (11) to the first fixed point (Tl) on the ground to which it is attached , said support rope (HV) being adapted to provide support and to guide the trolley (2), namely the support ropes (2Γ, 21) of the trolley (2);

- a tow rope (VV) extending from the associated drum (122) in the frame (12) of the drive assembly (1) via the diverting rope (112) on the column (11) and said support rope (22) and between the guide ropes (22 ' , 22) on the trolley (2) forward against the load (B) available at all times, to which the tow rope (VV) is connected if necessary;

- optionally a return rope (VP) extending from the associated drum (123) in the frame (12) of the drive assembly (1) via the diverting rope (113) on the column (11) and via the guide ropes (24 ', 24) on the trolley (2) to a further diverting rope in the immediate vicinity of said first fixed point (T1) and from there back towards the trolley (2) to which it is attached;

besides

- at least two arms (VT1, VT2) of the tensioning rope running between the tensioning rope (110) provided at the end (1Γ) of the support column (11) further from the base (P) and at least two further fixed points , T3) located on the base (P) outside the area of the tractor (T) and the drive assembly (1), preferably at least approximately in the opposite direction from said first fixed point (Tl) and gripping each other due to the anchoring of the support column (11). ) in its upright or inclined position during towing of the load (B), and optionally also at least one support (13) for supporting the support rope (HV) in the area between said drive assembly (1) and said first fixed point (T1), between which said support rope (HV) is tensioned, said trolley (2) in addition to the frame (20) and at least two support ropes (2Γ, 21) by means of which the trolley (2) is held on the support rope (HV) and movable along it, and the support rope (23) also comprises

- a drive means (230) rigidly connected to said support rope (23) and acting either as an electric motor or as a generator of electricity;

- control unit (25),

- battery (27) of electricity,

- a first brake (28) arranged between said support ropes (2Γ, 21) and adapted to cooperate with the support rope (HV) in terms of blocking the movement of the trolley (2) relative to the support rope (HV),

- a second brake (29) arranged close to the support rope (23) and adapted to block the movement of the tow rope (VV) relative to the trolley (2),

- a hydraulic assembly (26) controlled by said control unit (25) and provided for operating said first brake (28) and second brake (29), characterized in that the first brake (28) comprises a trolley housing (20) (2) cable car rigidly connected housing (281) with vertical guides (28 Γ, 281) spaced apart during the use of the cable car in the vertical direction transverse to the support rope (HV) and with the guides spaced apart in the longitudinal direction of the support rope (HV), in said guides (28 Γ, 281), a brake assembly (280) comprising a movable brake shoe (2801), a movable brake shoe (2802) and hydraulic cylinder (2803), said brake calipers (2801, 2802) arranged in the horizontal plane of the trolley (2) during the use of the cable car and diametrically with respect to the support rope (HV) opposite each other and each on its own side of the support rope (HV) , wherein the movable brake caliper (2801) is a mechanical connection on a hydraulic cylinder (2803) by means of which it can be moved, if necessary, in the direction of the fixed brake caliper (2802) or away from it;

and wherein the hydraulic cylinder (2803) is hydraulically connected via a control unit (25) to the hydraulic unit (26) of the cable carriage (2), and wherein the fixed brake caliper (2802) is incorporated into said brake assembly (280) in such a way that at a distance from said movable brake caliper (2801) and the hydraulic cylinder (2803) it is held by means of a series of flat lamellae (2804 ', 2804, 2804', 2804) rigidly connected to each other by screws (2805), and wherein the brake assembly (280) is movable along said guides (28Γ, 281) by means of at least two hydraulic cylinders (2806 ', 2806), each of which is mechanically connected on one side to the housing (281) and on the other side to brake assembly (280) of the brake (28) and of which at least one is arranged near the first guide (281 ') and at least one near the second guide (281), each of said hydraulic cylinders (2806', 2806) hydraulically connected to the hydraulic assembly (26) of the trolley (2) of the cableway via the control unit (25).

Cable car according to claim 1, characterized in that the movable brake shoe (2801) and the fixed brake shoe (2802) are provided with mutually facing recesses (2802 ', 2802) on their facing surfaces (280Γ, 2802'). in the form of a letter V, which are dimensionally adapted to cooperate with the supporting rope (VN) in terms of compression and simultaneous clamping of said rope (VN) to prevent the trolley (2) of the cableway relative to relative to said supporting rope (VN).