SI22800A - Hydraulic driving and guiding assembly of a line supporting element, in particularly pulley of a forestry winch - Google Patents
Hydraulic driving and guiding assembly of a line supporting element, in particularly pulley of a forestry winch Download PDFInfo
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- SI22800A SI22800A SI200900059A SI200900059A SI22800A SI 22800 A SI22800 A SI 22800A SI 200900059 A SI200900059 A SI 200900059A SI 200900059 A SI200900059 A SI 200900059A SI 22800 A SI22800 A SI 22800A
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/36—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/01—Winches, capstans or pivots
- B66D2700/0108—Winches, capstans or pivots with devices for paying out or automatically tightening the cable
Abstract
Description
Hidravlični pogonski in vodilni sklop gibkega linijskega nosilnega elementa, zlasti vrvenica pri gozdarskem vitluHydraulic drive and guide assembly of flexible linear support element, especially rope in forestry winch
Izum je na področju delovnih postopkov in transporta uvrščen k pogonskim sklopom škripčevij in naprav za dviganje gozdarskim vitlom in podobnim, večidel vsaj približno v horizontalni smeri delujočim napravam, še zlasti pa zadeva konstrukcijske podrobnosti tovrstnih naprav. Po drugi strani je izum v splošnem lahko uvrščen na področje strojnih elementov in transmisij, še zlasti k vrvenicam, jermenicam in verižnim kolesom.In the field of working procedures and transportation, the invention is classified as a set of pulleys and lifting devices for forestry winches and the like, mostly at least horizontally operating devices, and in particular concerns the structural details of such devices. On the other hand, the invention can generally be classified within the field of machine elements and transmissions, in particular to pulleys, pulleys and chain wheels.
Pri tem je izum osnovan na problemu, kako zasnovati hidravlično gnan pogonski vodilni sklop, namreč vrvenico, jermenico ali verižno kolo, še zlasti s hidravličnim motorjem gnano vrvenico za odvijanje vrvi z bobna pri gozdarskem vitlu, s pomočjo katerega bo možno povečati učinkovitost odvijanja vrvi ali podobnega linijskega nosilnega elementa z navijalnega bobna in obenem eliminirati ohlapnost z bobna odvite vrvi.The invention is based on the problem of how to design a hydraulically driven drive train, namely a pulley, a pulley or a chain wheel, and in particular a hydraulic motor driven pulley rope for the rope winch, which will help to increase the rope unwinding efficiency or similar line carrier element from the winding drum while eliminating slack from the unwound rope.
Pri gozdarskih vitlih se pogon navijalnega bobna vrši s pomočjo kardanske gredi, kije priključena na pogon traktorja, in preko ustreznega reduktorja. Obenem je pri vitlih večje nosilnosti na voljo hidravlični tokokrog, katerega pogonski agregat je na voljo bodisi na traktorju ali kar na vitlu samem. Ker ima pri vitlih večje nosilnosti navijalni boben zaradi razmeroma velike količine nanj navite vrvi razmeroma velike debeline veliko vztrajnost, je odvijanje vrvi v primeru popuščene zavore bobna izjemno težavno, zato je za odvijanje vrvi pogosto predvidena pomožna vrvenica, ki je hidravlično gnana. Tovrstna vrvenica je nameščena na gredi, ki je v približno horizontalnem položaju uležajena v okrovu, ki je zasukljiv okoli vertikalne osi. Na okrovu je s pomočjo ustrezne prirobnice soosno z omenjeno gredjo pričvrščen hidravlični motor, ki tako štrli iz omenjenega okrova, s čimer je širina tako gnane vrvenice v njeni osno smeri v območju osi rotacije izjemno velika. Ta prekomerna širina vrvenice skupaj s pripadajočim pogonskim motorjem pogosto ovira delo z vitlom na terenu in transport samega vitla, obenem pa tudi kazi estetski videz naprave.For forestry winches, the winding drum is driven by a PTO shaft connected to the tractor drive and by a suitable gear unit. At the same time, for winches of higher capacity, there is a hydraulic circuit whose drive unit is available either on the tractor or on the winch itself. Because of the relatively large amount of rope windings of relatively high thickness, the winding drum has a high inertia in the winches of higher capacity, it is extremely difficult to unwind the rope in the event of a broken drum brake, so it is often necessary to use a hydraulically driven auxiliary rope to unwind it. This type of rope is mounted on a shaft which is in a roughly horizontal position mounted in a housing which is rotatable about a vertical axis. With the help of a suitable flange, a hydraulic motor is attached to said shaft coaxially with said shaft, which protrudes from said housing, which makes the width of the rope so driven in its axial direction in the area of the axis of rotation extremely large. This excessive width of the rope, together with its associated propulsion engine, often impedes the work of the winch in the field and the transport of the winch itself, while also showing the aesthetic appearance of the device.
Pod navedbo »gibek linijski nosilni element«, je za potrebe interpretacije obsega tega izuma in še zlasti obsega patentnega varstva treba razumeti vsakršen gibek, pretežno linijsko usmerjen nosilni element, ki je zmožen prenašati sile vsaj v eni osni smeri, še zlasti npr. natezne sile, pri čemer v to skupino nosilnih elementov sodijo zlasti vrvi, vključno z jeklenimi vrvmi, jermeni, vključno s ploščatimi, klinastimi ali drugače profiliranimi jermeni, ter verige, vključno s členkastimi in lamelnimi verigami.By the term " flexible linear support element ", for the purposes of interpreting the scope of the present invention, and in particular the scope of patent protection, any flexible, predominantly linear oriented support element capable of transmitting forces in at least one axial direction, especially e.g. tensile forces, in particular in this group of load-bearing elements, ropes, including steel ropes, belts, including flat, wedge or otherwise shaped belts, and chains, including articulated and laminated chains.
Temu ustrezno gre torej pod izrazom »hidravlični pogonski in vodilni sklop gibkega linijskega nosilnega elementa« razumeti s pomočjo hidravličnega medija gnan pogonski sklop zgoraj opredeljenega gibkega linijskega nosilnega elementa, še zlasti torej vrvenico, jermenico ali verižno kolo, pri čemer izraz »hidravlični medij« vključuje poljubno tekočo ali plinasto snov, ki je primerna za konverzijo akumulirane tlačne energije v mehansko energijo, še zlasti rotacijsko gibanje omenjenega pogonskega elementa.Accordingly, the term "hydraulic drive and guide assembly of the flexible linear support element" is to be understood by means of the hydraulic medium to drive the drive assembly of the defined flexible linear support element, in particular a cord, pulley or chain wheel, the term "hydraulic medium" including any liquid or gaseous substance which is suitable for the conversion of accumulated pressure energy into mechanical energy, in particular the rotational motion of said drive element.
DE 20 2005 020 694 Ul opisuje napravo za izvlačenje vrvi z navijalnega bobna. Naprava obsega vrvenico, kije gnana s hidromotorjem in preko katere poteka vrv, ki jo je potrebno odviti z navijalnega bobna. Vrvenica je nameščena na gredi, kije uležajena v ustreznem okrovu in povezana z gredjo hidromotorja, katerega okrov oz. stator je soosno pritrjen na okrov vrvenice. Rotor hidromotorja je nameščen na gredi, ki je povezana z gredjo vrvenice, oziroma lahko sega v okrov vrvenice in je slednja nameščena kar na gredi hidromotorja. Ne glede na to pa so celotne izmere okrova vrvenice in pri graj enega hidromotorja v vsakem primeru razmeroma obsežne, kar gre šteti kot eno izmed bistvenih pomanjkljivosti znane naprave. Nadalje je treba upoštevati, da je vrvenica predvidena za odvijanje vrvi z navijalnega bobna, in da je pri vitlih dolžina na bobnu navite vrvi razmeroma velika. Navijalni boben mora biti ustrezno tog in ima zato že sam razmeroma veliko vztrajnost. Ker je na bobnu navita velika količina jeklene vrvi z znatno maso, je vztrajnost bobna z na sebi navito vrvjo torej še neprimerno večja. Iz navedenega razloga vselej obstoji možnost, da po vklopu hidromotorja in vrtenju vrvenice vrv drsi po površini vrvenice, ne da bi se boben zavrtel in s tem omogočil odvijanje vrvi. To še zlasti pride do izraza, kadar je vrv mokra in umazana, karje pri terenskem delu, npr. pri spravilu lesa, nekaj povsem običajno. Da pa bi navzlic temu povečali trenje med vrvenico in vrvjo na njeni površini, je v DE 20 2005 020 694 Ul predlagano, da so ob omenjeni vrvenici predvideni pritisni valji, ki nalegajo na vrvi in slednjo pritiskajo proti površini vrvenice ter s tem povečujejo trenje med njima. Vsak od omenjenih pritisnih valjev je prosto vrtljivo uležiščen v ustreznih vilicah, ki so ekscentrično zasukljivo uležiščene na okrovu vrvenice in z vzmetjo držane v smeri proti površini vrvenice. Napetost vzmeti in s tem silo pritiskanja vsakokratnega pritisnega valja proti površini vrvi oz. vrvenice je možno nastavljati s pomočjo pripadajočega regulacijskega vijaka. S takim ukrepom je sicer možno vsaj nekoliko povečati trenje med vrvjo in vrvenico, obenem pa tovrstna naprava popolnoma odpove v kontekstu še hujšega problema, ki se s tem v zvezi pojavlja. Ko namreč vrvenica uspe zagotoviti odvijanje vrvi z bobna, se slednji med odvijanjem vrti okoli svoje osi. Po končanem odvijanju, ko je z bobna odvita vsakokrat želena dolžina vrvi, se hidromotor za pogon vrvenice zaustavi in vrvenica preneha . Ne glede na to se boben zaradi svoje vztrajnosti navzlic zaviranju ne zmore zaustaviti v trenutku, ampak po prenehanju vrtenja vrvenice opravi še določen zasuk, ki je v splošnem sicer nezaželen, a je praktično neizogiben. Med tem neželenim zasukom se z bobna odvije določena količina vrvi, ki je zaustavljena vrvenica ne izvleče ven iz okrova navijalnega bobna, ampak ostane v ohlapnem stanju v notranjosti omenjenega okrova navijalnega bobna. Jeklena vrv je po eni strani razmeroma toga in obenem tudi razmeroma prožna, tako da v ohlapnem stanju zavzame določen položaj, kije prej odvisen od tendence upogibanja predhodno deformirane vrvi kot. od pa drugih dejavnikov, npr. od teže same vrvi. V takem stanju se vrv neredko zvije celo v zanko. V trenutku, ko uporabnik aktivira navijalni boben, da bi z navijanjem vrvi nanj premaknil vsakokratno na vrv pričvrščeno breme, navij alni boben pritegne prej ohlapno vrv, ki se potem na njegovo površino navije povsem naključno, namreč odvisno od položaja in stanja, v kakršnem seje pred tem nahajala. Če se v taki situaciji vrv na boben navija regularno, torej ovoj ob ovoju, gre to pripisati predvsem naključju. Dosti bolj je namreč verjetno, da se vrv prične navijati na boben na drugem mestu in pod neustreznim kotom, zaradi česar se potem določeni ovoji vrvi navzkrižno prekrivajo, kar privede do težav pri navijanju in/ali odvijanju, v zelo kratkem času pa tudi do poškodb vrvi.DE 20 2005 020 694 Ul describes a device for pulling ropes from a winding drum. The apparatus comprises a rope driven by a hydromotor and through which a rope is passed which is to be unscrewed from the winding drum. The rope is mounted on the shaft, which is mounted in the corresponding housing and connected to the shaft of the hydraulic motor, whose housing or. the stator is coaxially attached to the casing. The rotor of the motor is mounted on a shaft that is connected to the shaft of the rope, or it can extend into the rope housing and the latter is mounted directly on the shaft of the rotor. Nevertheless, the overall dimensions of the casing and the casing of one hydraulic motor are in any case relatively large, which should be considered as one of the essential disadvantages of the known device. In addition, it should be borne in mind that the rope is designed to loosen the rope from the winding drum and that for winches the length of the winding rope is relatively large. The winding drum must be properly rigid and therefore have relatively high perseverance. Since a large amount of heavy-duty steel wire is wound on the drum, the inertia of the drum with the cable wound on it is therefore even greater. For this reason, it is always possible to slide the rope on the surface of the rope after turning on the motor and rotating the rope without rotating the drum, thus allowing the rope to unwind. This is especially the case when the rope is wet and dirty, which in the case of field work, e.g. when harvesting wood, something quite ordinary. However, in order to increase the friction between the rope and the rope on its surface, DE 20 2005 020 694 Ul proposes that pressure ropes are provided along the rope, which rest against the rope and press the latter against the surface of the rope, thereby increasing friction between them. Each of said pressure cylinders is freely rotatably mounted in a suitable fork, which is eccentrically pivoted on the housing of the rope and with a spring held in the direction of the surface of the rope. The tension of the spring and thus the force of compression of the respective pressure roller against the surface of the rope, respectively. the ropes can be adjusted by means of the adjuster screw. With such a measure, it is possible to at least slightly increase the friction between the rope and the rope, but at the same time such a device completely fails in the context of an even more serious problem that arises in this regard. When the rope succeeds in securing the rope from the drum, the rope rotates about its axis during the reeling. After unrolling, when the desired length of rope is unwound from the drum, the hydromotor to drive the rope stops and the rope stops. Nevertheless, due to its persistence of braking, the drum is not able to stop momentarily, but after termination of the rotation of the sling a certain twist is made, which is generally undesirable but practically unavoidable. During this unwanted rotation, a certain amount of rope is unwound from the drum, which is not pulled out of the winding drum housing but stopped in a loose state inside said winding drum housing. On the one hand, the steel rope is relatively rigid and at the same time relatively flexible, so that in a loose state it occupies a certain position, which depends first on the tendency to bend the previously deformed rope angle. from other factors, e.g. from the weight of the rope itself. In such a condition, the rope is often twisted even into a loop. At the moment when the user activates the winding drum to move the load attached to the rope by winding the rope on it, the winding drum attracts the previously loose rope, which then winds completely on its surface randomly, namely depending on the position and condition in which it sits. previously encountered. If in such a situation the rope on the drum is bent regularly, that is, the wrapping along the sheath, this should be attributed primarily to chance. It is much more likely that the rope starts winding on the drum elsewhere and at an improper angle, causing certain ropes to cross over each other, resulting in winding and / or unwinding problems and, in a very short time, damage ropes.
Izum se nanaša na hidravlični pogonski in vodilni sklop gibkega linijskega nosilnega elementa, obsegajoč vsaj en okoli prednostno vsaj približno horizontalne geometrijske osi s pomočjo hidravličnega motorja vrtljiv pogonski element, ki je s pomočjo ležajev ali drugih ustreznih ležišč uležiščen v notranjosti ustreznega okrova.The invention relates to a hydraulic drive and guide assembly of a flexible linear support element, comprising at least one, preferably at least approximately horizontal, geometric axis by means of a hydraulic motor, a rotary drive element which is supported by means of bearings or other suitable bearings inside the corresponding housing.
Po izumu je omenjen pogonski element z zmožnostjo prenosa vrtilnega momenta pričvrščen na v notranjost okrova segajoč in v slednjem uležajen rotacijski del hidravličnega motorja, ki je s svojim stacionarnim delom togo povezan z omenjenim okrovom.According to the invention, said drive element is capable of transmitting torque to a rotating part of the hydraulic motor extending to the inside of the housing, which is rigidly connected to said housing by its stationary part.
Obenem je okrovu ob omenjenem pogonskem elementu predviden dodaten pogonski element, ki je vrtljiv okoli svoje osi, ki je vzporedna z osjo vrtenja pogonskega elementa, tako da vrv ali podobno gibko prenosno sredstvo poteka med omenjenima pogonskima elementoma, pri čemer jek pogonskemu elementu soosno priključen zobnik, k dodatnemu pogonskemu elementu pa nadaljnji zobnik, omenjena zobnika pa sta prirejena za medsebojno ubiranje.At the same time, the housing of said drive element is provided with an additional drive element rotatable about its axis, which is parallel to the axis of rotation of the drive element, such that a rope or similar flexible transmission means runs between said drive elements, whereby the drive element is coaxially connected to the gear unit. , and a further sprocket to the additional drive element, said sprockets being adapted for mutual engagement.
Medosna razdalja med dodatnim pogonskim elementom pogonskim elementom je prednostno spremenljiva in vnaprej nastavljiva.The wheelbase between the additional drive element drive element is preferably variable and adjustable in advance.
Nadalje je hidravlični motor preko svojih hidravličnih priključkov prednostno vključen v hidravlični sklop, ki je predviden za krmiljenje delovanja zavore in sklopke pri gozdarskem vitlu, pri čemer omenjen hidravlični sklop poleg rezervoarja hidravličnega medija, hidravlične črpalke, hidravličnih cilindrov za krmiljenje zavore in sklopke za pogon oz. zaustavljanje navijalnega bobna gozdarskega vitla in razvodnega ventila za krmiljenje pretoka hidravličnega medija proti omenjenima cilindroma obsega vsaj še hidravlični motor, katerega rotacijski del je povezan s pogonskim elementom, ki je z njegovo pomočjo gnan, obenem pa tudi vsaj en tlačni akumulator, s katerim je omenjeni hidravlični motor zaporedno vezan. Zahvaljujoč tovrstni zasnovi je po prekinitvi dovoda hidravličnega medija od črpalke proti hidravličnemu motorju slednji vsaj še v okviru vnaprej določenega časovnega intervala gnan s pomočjo v tlačnem akumulatorju shranjenega hidravličnega medija.Furthermore, the hydraulic motor through its hydraulic connections is preferably included in the hydraulic assembly intended to control the operation of the brake and clutch in the winch, said hydraulic assembly in addition to the reservoir of hydraulic medium, hydraulic pump, hydraulic cylinders for steering the brake and the clutch for driving or . stopping the winding winch drum and timing valve for controlling the flow of hydraulic medium against said cylinders comprises at least a hydraulic motor whose rotary part is connected to a drive element which is driven by it and at least one pressure accumulator with which it is mentioned. hydraulic motor connected in series. Thanks to this design, after the interruption of the hydraulic medium supply from the pump to the hydraulic motor, the latter is driven at least within a predetermined time interval by the aid of the stored hydraulic medium in the pressure accumulator.
Pri prednostni izvedbi izuma stacionarni del hidravličnega motorja predstavlja integralni del okrova. Razen tega je v okrov v osni smeri segajoč in z izven okrova segajočima hidravličnima priključkoma opremljen stacionarni del hidravličnega motorja v notranjosti okrova obdan z rotacijski delom hidravličnega motorja, kije s pomočjo ležajev uležajen v notranjosti okrova in na katerega obodu je pričvrščen pogonski element. Rotacijski del hidravličnega motorja je v okrovu uležajen s pomočjo vsaj dveh med seboj v osni smeri razmaknjenih ležajev, pogonski element pa je na rotacijskem delu razporejen med dvema ležajema.In a preferred embodiment of the invention, the stationary part of the hydraulic motor is an integral part of the housing. In addition, the stationary part of the hydraulic motor inside the housing is surrounded by a rotary part of the hydraulic motor which is mounted on the inside of the housing by means of bearings and to which the drive element is attached to the housing in the axial direction extending and extending beyond the housing. The rotating part of the hydraulic motor is mounted in the housing by means of at least two axially spaced bearings in the axial direction, and the drive element is arranged between the two bearings on the rotary part.
Pogonski element je v splošnem izbran iz skupine, ki jo tvorijo vrvenice, jermenice in verižna kolesa. Razen tega je v splošnem celoten okrov vključno s pogonskim delom in deli hidravličnega motorja prirejen za okoli vertikalne osi zasukljivo pričvrstitev na okrov gozdarskega vitla.The drive element is generally selected from the group consisting of pulleys, pulleys and chain wheels. In addition, the whole casing, including the drive and hydraulic motor parts, is generally configured to have a rotatable attachment to the casing of the forestry winch around the vertical axis.
Izum bo v nadaljevanju podrobneje obrazložen na osnovi primerov izvedbe, ki sta ponazorjena na priloženi skici, kjerThe invention will now be explained in more detail based on the embodiments illustrated in the accompanying drawing, where
Sl. 1 kaže v narisu ponazorjen hidravlični pogonski in vodilni sklop gibkega linijskega nosilnega elementa, konkretno vrvenico pri gozdarskem vitlu;FIG. 1 shows a hydraulic drive and guide assembly of a flexible linear support element, a concrete rope in a forestry winch, in the outline;
Sl. 2 prerez v ravnini II - II po Sl. 1;FIG. 2 is a cross-section in plane II - II according to FIG. 1;
Sl. 3 nadaljnjo, še izpopolnjeno različico vrvenice gozdarskega vitla, v perspektivi;FIG. 3 a further, further refined version of the rope of the forestry winch, in perspective;
Sl. 4 različico po Sl. 3 v delnem prečnem prerezu;FIG. 4 according to FIG. 3 in partial cross-section;
Sl. 5 pa shemo hidravličnega sklopa za pogon in kriljenje sklopa po izumu.FIG. 5 is a schematic diagram of a hydraulic assembly for propulsion and wing assembly according to the invention.
Navzlic številnim in raznovrstnim možnim konkretnim izvedbam pričujočega izuma je slednji obrazložen izključno na primeru konkretne aplikacije na področju pogonskih vrvenic pri gozdarskih vitlih.In view of the numerous and varied possible concrete embodiments of the present invention, the latter is explained solely in the case of a concrete application in the field of power lines in forestry winches.
V konkretnem primeru je vrvenica kot pogonski element 1 sklopa za pogon in vodenje gibkega linijskega nosilnega elementa, v prikazanem primeru tudi s pomožnim vodilnim elementom 6 vodene jeklene vrvi 5 (Sl. 2), z možnostjo rotacije okoli svoje vsaj približno horizontalne geometrijske osi 10 vgrajena v okrovu 2, ki je z možnostjo zasuka okoli vertikalne osi 20 pričvrščen na okrovu gozdarskega vitla, ki na skici ni prikazan.In the present case, the rope as a driving element 1 of the drive and control assembly of the flexible linear support element, in this case also the auxiliary guide element 6 of the guided steel rope 5 (Fig. 2), with the possibility of rotation about its at least approximately horizontal geometric axis 10 in box 2, which can be rotated about the vertical axis 20 to be mounted on the frame of the winch not shown in the drawing.
Po izumu je v omenjenem okrovu 2 vgrajen hidravlični motor 3 s hidravličnima priključkoma 30, 30, in sicer na tak način, da je njegov osrednje razporejen stacionarni del 31 po eni strani togo povezan z omenjenim okrovom 2 in po drugi strani obdan z rotirajočim, s pomočjo hidravličnega medija gnanim pogonskim delom 32, ki je s pomočjo ležajev 41, 42 uležajen v okrovu 2. Vsakokraten pogonski element 1 je nameščen na obodu omenjenega rotacijskega dela 31 hidravličnega motorja 3 in je z njim smiselno togo povezan vsaj na tak način, daje zmožen prenašati vrtilni moment oz. da je preprečeno relativno gibanje med rotacijskim delom 31 motorja 3 in pogonskim elementom 1 v obodni smeri.According to the invention, a hydraulic motor 3 with hydraulic connectors 30, 30 is mounted in said housing 2 in such a way that its centrally located stationary part 31 is rigidly connected to said housing 2 on the one hand and surrounded by a rotating device on the other. by means of a hydraulic medium driven drive portion 32 which is housed in the housing by means of bearings 41, 42. The respective drive element 1 is mounted on the circumference of said rotary part 31 of the hydraulic motor 3 and is rigidly connected thereto at least in such a way that it is capable of to transmit torque or. that relative movement between the rotating part 31 of the motor 3 and the drive element 1 in the circumferential direction is prevented.
Ko priključka 30', 30 povežemo v hidravlični tokokrog in je hidravlični medij pod tlakom, se pogonski del 31 hidravličnega motorja 3 skupaj z na sebi nameščenim pogonskim elementom 1 zahvaljujoč ležajema 41, 42 v okrovu 2 vrti okoli osi 10. Za razliko od prej znanih tovrstnih naprav, pri katerih je pogonski element 1 nameščen na gredi, ki je soosno povezana z rotirajočim delom 31 na okrov 2 pričvrščenega hidravličnega motorja 3, je v tem primeru hidravlični motor 3 vgrajen v samem okrovu 2, pogonski element 1 pa je pričvrščen na rotirajoč pogonski del 31 samega hidravličnega motorja 3, tako da je širina celotnega sklopa, namreč okrova 2 z vgrajenim pogonskim elementom 1 in hidravličnim motorjem 3, nedvomno lahko v znatni meri reducirana.When the connectors 30 ', 30 are connected to the hydraulic circuit and the hydraulic medium is pressurized, the drive part 31 of the hydraulic motor 3, together with the drive element 1 mounted on it, rotates about the axis 10 thanks to the bearings 41, 42 in the housing 2. of such devices, in which the drive element 1 is mounted on a shaft coaxially connected to the rotating part 31 on the housing 2 of the attached hydraulic motor 3, in which case the hydraulic motor 3 is mounted in the housing 2 itself, and the drive element 1 is attached to the rotating the drive section 31 of the hydraulic motor 3 itself, so that the width of the whole assembly, namely the housing 2 with the drive element 1 and the hydraulic motor 3, can undoubtedly be substantially reduced.
Kadar je vrvenica predvidena za vodenje vrvi 5, preko katere se vrši prenos razmeroma velikih sil, je za povečanje trenja med vrvjo 5 in vrvenico oz. pogonskim elementom 1 na okrovu 2 predviden dodatni pogonski element 7 (Sl. 3), prednostno prav tako vrvenica 7, ki je razporejena neposredno ob pogonskem elementu 1, tako da sta osi elementov 1 in 7 med seboj načeloma vzporedni, vrv 5 pa poteka med obema pogonskima elementoma 1, 7. Omenjen dodatni pogonski element 7 je gnan s pomočjo prvoomenjenega pogonskega elementa 1. V ta namen jev prikazanem primeru k omenjenemu pogonskemu elementu 1 soosno priključen zobnik 15, k nazadnje omenjenemu pogonskemu elementu 7 pa 75, omenjena zobnika 15, 75 pa sta prirejena za medsebojno sodelovanje. Premera omenjenih zobnikov 15, 75 sta smiselno usklajena s premeroma omenjenih pogonskih elementov 1, 7, tako daje hitrost na obodu pogonskih elementov 1, 7 enaka in s površino vrvi 5 sodelujeta brez podrsavanja.When the rope is intended to guide rope 5 through which relatively high forces are transmitted, to increase the friction between rope 5 and rope 5, respectively. the drive element 1 in the housing 2 is provided with an additional drive element 7 (Fig. 3), preferably also a rope 7 arranged directly adjacent to the drive element 1, so that the axes of the elements 1 and 7 are substantially parallel and the rope 5 runs between both drive elements 1, 7. Said auxiliary drive element 7 is driven by the first-mentioned drive element 1. To this end, the sprocket 15 is coaxially connected to said drive element 1 and 75 to the last drive element 7, said gear 15, 75 are adapted for mutual cooperation. The diameters of said gears 15, 75 are reasonably aligned with the diameters of said drive elements 1, 7, so that the speed at the circumference of the drive elements 1, 7 is equal and interacts with the surface of the rope 5 without sliding.
Zaradi prilagajanja premeru vsakokratne vrvi 5 in še zlasti tudi zaradi uravnavanja pritiska dodatnega pogonskega elementa 7 proti površini vrvi 5 in posredno pritiska slednje proti površini pogonskega elementa 1, je medosna razdalja med pogonskima elementoma 1, 7 spremenljiva oz. vnaprej nastavljiva. To je doseženo s tem, da je dodatni pogonski element 7 s svojo osjo 7 uležajen v ustreznem nosilcu 71, ki je na okrovu 2 v prikazanem primeru s pomočjo navojne puše 72, podprte z vzmetjo 73 položajno premakljiv v smeri proti pogonskemu elementu 1 oziroma vstran od njega, nakar je pogonski element 7 v vsakokrat izbranem položaju možno učvrstiti s pomočjo matice 74.Due to the adaptation to the diameter of the respective rope 5, and in particular also to regulate the pressure of the additional drive element 7 against the surface of the rope 5 and indirectly press the latter to the surface of the drive element 1, the wheelbase between the drive elements 1, 7 is variable or. pre-adjustable. This is achieved by the fact that the additional drive element 7, with its axis 7, is mounted in a suitable carrier 71, which in the case shown in the shown case is, by means of a threaded sleeve 72, supported by a spring 73, positionally movable in the direction towards the drive element 1 or sideways thereafter, the drive element 7 can be fixed in any position by means of a nut 74.
Kadar je vrvenica uporabljena pri gozdarskem vitlu, slednji obsega neprikazan navijalni boben, s katerega se odvija vrv 5 oz. se nanj navija. Tak boben je praviloma gnan preko ustreznega prenosnika, na katerega je priključena pogonska gred traktorja ali podobnega delovnega stroja. Strokovnjakom je znano, da v takem primeru boben vključuje tudi alternativno delujoči zavoro in sklopko, pri čemer se ob aktiviranju sklopke deaktivira zavora, s čimer se vrtilni moment z gredi pogonskega stroja prenaša na boben in se slednji vrti v želeno smer navijanja ali odvijanja vrvi 5. Po končanem navijanju ali odvijanju vrvi 5 se ob deaktiviranju sklopke aktivira zavoro, ki preprečuje nadaljnje vrtenje bobna. Krmiljenje delovanja zavore in sklopke se vrši s pomočjo ustreznega hidravličnega sklopa 8, v katerem sta predvidena hidravlična cilindra 81, 82 za krmiljenje zavore in sklopke.When the rope is used with a forestry winch, the rope comprises an unpowered winding drum from which a 5 or 5 rope is drawn. is cheering on her. Such a drum is generally driven by a suitable gearbox to which the drive shaft of a tractor or similar working machine is connected. It is well known to those skilled in the art that in this case the drum also includes an alternatively acting brake and clutch, whereby when the clutch is actuated, the brake is actuated, thereby transferring the torque from the drive shaft to the drum and rotating it in the desired direction of winding or unwinding of the rope 5 After winding or unwinding of rope 5, a brake is applied when the clutch is deactivated to prevent the drum from rotating further. Control of the brake and clutch operation is accomplished by means of a suitable hydraulic assembly 8, in which hydraulic cylinders 81, 82 are provided for controlling the brake and clutch.
Kot je bilo uvodoma omenjeno, zlasti pri odvijanju vrvi 5 s pripadajočega bobna pogosto nastopi problem, ker se zaradi vztrajnosti bobna s slednjega še med zaviranjem odvije nekaj vrvi 5, ali da vrv 5 zaradi svoje togosti kaže tendenco zastajanja v okrovu bobna, zaradi česar potem vrv 5 v različnih položajih ostane v okrovu bobna, nakar se ob pričetku vrtenja bobna v smeri navijanja vrvi 5 prične na neustrezen način navijati na boben.As mentioned above, especially when unscrewing the rope 5 from the associated drum, there is often a problem because, due to the persistence of the drum, some rope 5 is unwound during braking, or because of its rigidity, the rope 5 shows a tendency to stall in the drum housing, which causes the rope 5 remains in various positions in the drum housing, and then, when the drum rotates in the direction of winding of the rope 5, it starts to wind up in an improper manner on the drum.
Temu v izogib je po izumu predvideno, da je hidromotor 3 za pogon vrvenice po izumu integriran v hidravlični sklop 8 za krmiljenje delovanja zavore in sklopke vitla (Sl. 5), kar se že sicer vrši preko hidravličnih cilindrov 81, 82 za krmiljenje zavore in sklopke. V ta namen je v omenjenem hidravličnem sklopu 8, ki poleg rezervoarja 83 hidravličnega medija, črpalke 84, omenjenih cilindrov 81, 82 za krmiljenje zavore in sklopke ter ustreznih ventilov obsega vsaj še hidravlični motor 3 za pogon vrvenice po izumu, vključno s pripadajočim tlačnim akumulatorjem 85, ki je zaporedno vezan zaporedno z omenjenim hidromotorjem 3. Pri tem sta omenjeni hidromotor 3 in pripadajoči tlačni akumulator 85 v hidravličnem sklopu 8 vezana na tak način, da se ob aktiviranju hidravličnega cilindra 81 zavore in hidravličnega cilindra 82 zavore, s čemer se pri vitlu deaktivira sklopko in aktivira zavoro, prekine dovod tlačnega medija iz rezervoarja 83 preko črpalke 84, pač pa je odtlej hidromotor 3 s hidravličnim medijem pod ustreznim tlakom napajan iz tlačnega akumulatorja 85. To ima za posledico, da ob zaustavitvi vrtenja bobna s pomočjo aktiviranja zavore ob deaktiviranju sklopke, torej po prekinitvi dovoda hidravličnega medija proti cilindroma 81, 82 vključno s hidromotorjem 3 s pomočjo razvodnega ventila 86, hidromotor 3 zahvaljujoč akumuliranemu tlačnemu mediju iz akumulatorja 85 še naprej določen čas poganja pogonski element 1 in posredno tudi pogonski element 7, s čimer se v okrovu bobna zastalo vrv 5 odvede ven iz okrova oziroma se odsek vrvi 5 med navij alnim bobnom in pogonskima elementoma 1, 7 vrvenice po izumu vseskozi vzdržuje v napetem stanju.According to the invention, it is envisaged that the motor 3 for driving the rope according to the invention is integrated into the hydraulic assembly 8 for controlling brake operation and the winch clutch (Fig. 5), which is already done through hydraulic cylinders 81, 82 for steering the brake and switches. For this purpose, in said hydraulic assembly 8, which in addition to the reservoir 83 of the hydraulic medium, the pump 84, the said cylinders 81, 82 for controlling the brake and the clutch and the corresponding valves comprises at least a hydraulic motor 3 for driving the rope according to the invention, including the associated pressure accumulator 85, which is connected in series with said hydraulic motor 3. In this case, said hydraulic motor 3 and the associated pressure accumulator 85 in the hydraulic assembly 8 are connected in such a way that, when the hydraulic cylinder 81 is actuated, the brake and the hydraulic cylinder 82 are actuated. the winch deactivates the clutch and activates the brake, interrupts the supply of the pressure medium from the reservoir 83 via the pump 84, and from then on the hydraulic motor 3 is pressurized from the pressure accumulator 85 with the hydraulic medium under appropriate pressure. when the clutch is deactivated, ie after interruption of the hydraulic medium supply to the cylinders 81, 82 including the hydraulic motor 3 by means of the distributor valve 86, the hydraulic motor 3 continues to drive the drive element 1 and, indirectly, the drive element 7 through the accumulated pressure medium from the battery 85, thereby releasing the stuck cable 5 from the housing that is, the section of the rope 5 between the winding drum and the drive elements 1, 7 of the rope according to the invention is constantly maintained in tension.
Ko s premikom omenjenega razvodnega ventila 86 ponovno omogočimo dovod hidravličnega medija cilindroma 81, 82 zavore in sklopke ter hidromotorju 3 vrvenice po izumu, se na ustrezen način, npr. s pomočjo dušilk 87, 88 pred cilindroma 81, 82, uvodoma zagotovi polnjenje tlačnega akumulatorja 85, čemur sledi dovod medija v cilindra 81, 82 in proti hidromotorju 3.When, by moving said manifold valve 86, the hydraulic medium of the brake and clutch cylinders 81, 82 and the rope motor 3 according to the invention are re-enabled, in a suitable manner, e.g. by means of throttles 87, 88 in front of cylinders 81, 82, initially provides for the charge of the pressure accumulator 85, followed by the supply of medium to cylinders 81, 82 and towards the motor 3.
Claims (9)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI200900059A SI22800B (en) | 2008-06-03 | 2009-03-03 | Hydraulic driving and guiding assembly of a line supporting element, in particularly pulley of a forestry winch |
| PCT/SI2009/000018 WO2009148414A1 (en) | 2008-06-03 | 2009-04-17 | Hydraulic device for driving and guiding of a longitudinal towing member, especially a pulley of a forestry winch |
| EP09758637.4A EP2285723B1 (en) | 2008-06-03 | 2009-04-17 | Hydraulic device for driving and guiding of a longitudinal towing member, especially a pulley of a forestry winch |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI200800144A SI22797A (en) | 2008-06-03 | 2008-06-03 | Hydraulic driving and guiding assembly of a line supporting element, in particularly pulley of a forestry winch |
| SI200900059A SI22800B (en) | 2008-06-03 | 2009-03-03 | Hydraulic driving and guiding assembly of a line supporting element, in particularly pulley of a forestry winch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SI22800A true SI22800A (en) | 2009-12-31 |
| SI22800B SI22800B (en) | 2013-11-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SI200900059A SI22800B (en) | 2008-06-03 | 2009-03-03 | Hydraulic driving and guiding assembly of a line supporting element, in particularly pulley of a forestry winch |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2285723B1 (en) |
| SI (1) | SI22800B (en) |
| WO (1) | WO2009148414A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013180664A1 (en) | 2012-05-29 | 2013-12-05 | Tajfun Planina Proizvodnja Strojev, D.O.O. | Forestry winch with controlled decoiling of a towing cable |
| WO2013180665A1 (en) | 2012-05-31 | 2013-12-05 | Tajfun Planina Proizvodnja Strojev, D.O.O. | Forestry winch with controlled coiling of a towing cable and preventing the overloading thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SI23178B (en) * | 2009-10-21 | 2015-10-30 | Uniforest, D.O.O. | Limitlessly rotatable directioning device with hydraulic motor drivensheave |
| SI24540B (en) * | 2013-11-08 | 2018-01-31 | Tajfun Planina Proizvodnja Strojev, D.O.O. | Logging winch with advanced control assembly for controlled unwinding drawing rope from a winding drum |
| SI24541A (en) | 2013-11-08 | 2015-05-29 | Tajfun Planina Proizvodnja Strojev, D.O.O. | Logging winch with advanced management, winding and unwinding of tractive rope |
| SI24539A (en) | 2013-11-08 | 2015-05-29 | Tajfun Planina Proizvodnja Strojev, D.O.O. | Logging winch with improved management of stretching a rope in the area of upper pulley |
| SI24950A (en) * | 2015-03-13 | 2016-09-30 | PIĹ EK - VITLI KRPAN, d.o.o | Hydraulic system with extra protection of operation of hydraulic circuit of the clutch and brake of drum of a forestry winch |
| DE102021107515A1 (en) * | 2021-03-25 | 2022-09-29 | Suffel Fördertechnik GmbH & Co. KG. | Ejector for a forestry winch |
| DE102021107516A1 (en) * | 2021-03-25 | 2022-09-29 | Suffel Fördertechnik GmbH & Co. KG. | Ejector for a forestry winch |
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| GB530640A (en) * | 1938-10-15 | 1940-12-17 | Mckiernan Terry Corp | Improvements in mechanism for paying out hoisting lines |
| DE1936097A1 (en) * | 1969-07-16 | 1971-01-28 | Rotzler Kg Maschf Ernst | Winch |
| US3843094A (en) * | 1973-01-05 | 1974-10-22 | R Watts | Traction device |
| GB8627684D0 (en) * | 1986-11-19 | 1986-12-17 | Bellway Plc | Vehicle winch |
| DE19830239B4 (en) * | 1998-07-07 | 2008-02-07 | S + R Maschinenbau Gmbh Schlang & Reichart Forstseilwinden | Forestry winch |
| DE202005020694U1 (en) * | 2005-04-08 | 2006-06-22 | A. Ritter u. Söhne, Maschinenfabrik und Landmaschinen GmbH & Co KG | Cable feeder for cable winches used in logging has a cable-tensioning device for tightening a cable when pulling it in |
| JP2007075473A (en) * | 2005-09-16 | 2007-03-29 | Toshintec Kk | Electric winch for getting on and off of wheelchair |
| WO2009072992A2 (en) * | 2007-12-04 | 2009-06-11 | Uniforest, D.O.O. | Driving gear for rope unwinding on forestry windlasses |
-
2009
- 2009-03-03 SI SI200900059A patent/SI22800B/en active Search and Examination
- 2009-04-17 WO PCT/SI2009/000018 patent/WO2009148414A1/en active Application Filing
- 2009-04-17 EP EP09758637.4A patent/EP2285723B1/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013180664A1 (en) | 2012-05-29 | 2013-12-05 | Tajfun Planina Proizvodnja Strojev, D.O.O. | Forestry winch with controlled decoiling of a towing cable |
| WO2013180665A1 (en) | 2012-05-31 | 2013-12-05 | Tajfun Planina Proizvodnja Strojev, D.O.O. | Forestry winch with controlled coiling of a towing cable and preventing the overloading thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2285723B1 (en) | 2013-05-01 |
| WO2009148414A1 (en) | 2009-12-10 |
| WO2009148414A9 (en) | 2010-03-18 |
| SI22800B (en) | 2013-11-29 |
| EP2285723A1 (en) | 2011-02-23 |
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