SI26289A - Mechanical winch with a mechanical switch to stop winding the rope onthe winch drum - Google Patents
Mechanical winch with a mechanical switch to stop winding the rope onthe winch drum Download PDFInfo
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- SI26289A SI26289A SI202100228A SI202100228A SI26289A SI 26289 A SI26289 A SI 26289A SI 202100228 A SI202100228 A SI 202100228A SI 202100228 A SI202100228 A SI 202100228A SI 26289 A SI26289 A SI 26289A
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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
- B66D1/02—Driving gear
- B66D1/14—Power transmissions between power sources and drums or barrels
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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
- B66D1/02—Driving gear
- B66D1/14—Power transmissions between power sources and drums or barrels
- B66D1/16—Power transmissions between power sources and drums or barrels the drums or barrels being freely rotatable, e.g. having a clutch activated independently of a brake
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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
- B66D1/02—Driving gear
- B66D1/14—Power transmissions between power sources and drums or barrels
- B66D1/16—Power transmissions between power sources and drums or barrels the drums or barrels being freely rotatable, e.g. having a clutch activated independently of a brake
- B66D1/18—Power transmissions between power sources and drums or barrels the drums or barrels being freely rotatable, e.g. having a clutch activated independently of a brake and the power being transmitted from a continuously operating and irreversible prime mover, i.e. an internal combustion engine, e.g. on a motor vehicle or a portable winch
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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
- B66D1/54—Safety gear
- B66D1/56—Adaptations of limit switches
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
Abstract
Izum se nanaša na mehanski vitel z mehanskim stikalom za prekinitev navijanja vrvi na boben vitla. Ustje vodilnega dela vlečne vrvi je opremljeno z vzmetno podprtim potisnim elementom. Ob naletu končnega dela vlečne vrvi na potisni element se preko žične vrvi vodene v bovdnu prenese gibanje na izklopno ploščo, ki je del izklopnega mehanizma, ki vključuje: osnovno ploščo z dvema nasproti usmerjenima krakoma, pri čemer je zgornji krak povezan z zeleno vrvjo za aktivacijo vlečenja; izklopno ploščo, na kateroje pritrjena žična vrv; ohišje, ki je opremljen z izvrtino za povezavo s sklopko pogona bobna ter ušesom za vpetje vzmeti; dveh vzmeti, ki vračata obe ročici iz končne pozicije v začetno pozicijo, pri čemer je med osnovno ploščo ter ohišjem v ustreznih utorih ali luknjah razporejen vsaj en omejevalni element, in pri čemer je izklopna plošča opremljena z utori ali luknjami za sprejem omenjenega omejevalnega elementa, ter je prilagojena, da se po premiku žične vrvi izklopna plošča zasuka, s čemer se utoriprekrijejo z luknjami na osnovni ročici, kar vodi do pomika omejevalnega elementa in razklenitev vezi med osnovno ploščo in ohišjem, kar prekine vlečenje.The invention relates to a mechanical winch with a mechanical switch for interrupting the winding of the rope on the winch drum. The mouth of the guide part of the towing rope is equipped with a spring-supported push element. When the end of the pull rope hits the thrust element, the movement is transferred via a wire rope guided in the bowden to the release plate, which is part of the release mechanism, which includes: a base plate with two opposite arms, the upper arm being connected to the green activation rope pulling; the disconnect plate to which the wire rope is attached; the housing, which is equipped with a hole for connection to the clutch of the drum drive and an eye for fastening the spring; two springs returning both levers from their end position to their initial position, wherein at least one stop element is arranged between the base plate and the housing in respective grooves or holes, and wherein the trip plate is provided with grooves or holes for receiving said stop element, and is adapted so that after the movement of the wire rope, the release plate rotates, thereby overlapping the grooves with the holes in the base lever, which leads to the movement of the limiting element and the release of the connection between the base plate and the housing, which interrupts the pull.
Description
Mehanski vitel z mehanskim stikalom za prekinitev navijanja vrvi na boben vitlaMechanical winch with a mechanical switch to stop winding the rope on the winch drum
Področje tehnikeThe field of technology
Izum sodi na področje strojništva, natančneje na področje gozdarskih vitlov in varnostnih naprav pri gozdarskih vitlih. Izum se nanaša na mehanski vitel z mehanskim stikalom za prekinitev navijanja vrvi na boben vitla.The invention belongs to the field of mechanical engineering, more specifically to the field of forestry winches and safety devices for forestry winches. The invention relates to a mechanical winch with a mechanical switch for interrupting the winding of the rope on the winch drum.
Ozadje izuma in tehnični problemBackground of the Invention and Technical Problem
Pri navijanju vrvi na boben se velikokrat zgodi, da uporabnik ne izklopi funkcije navijanja dovolj zgodaj in se vrv zarije med plasti navojev na bobnu ali pa se odtrga zaključni, pripenjalni del iz vrvi, ali pa pride do pretrganja žične vrvi. V vseh primerih je potrebno proces dela prekiniti in sanirati problem. Pogosto nastopi tudi trajno uničenje dela vrvi, še posebej, če jo potegne med plasti vrvi na bobnu in tako vrv stisne oz. trajno deformira. Tako dodatno trajno deformacijo se predvsem pri odvijanju vrvi reši z veliko vlečno silo, sicer vrvi ni možno odviti iz bobna. Če se vlečna vrv vitla ne ustavi pravočasno, se lahko poškoduje tudi kakšen konstrukcijski element vitla, največkrat je to vodilo žične vrvi na vrvenici.When winding the rope on the drum, it often happens that the user does not turn off the winding function early enough and the rope gets buried between the layers of threads on the drum, or the final, fastening part is torn off from the rope, or the wire rope breaks. In all cases, it is necessary to interrupt the work process and repair the problem. Permanent destruction of a part of the rope also often occurs, especially if it is pulled between the layers of the rope on the drum and thus compresses the rope or permanently deforms. Such additional permanent deformation is mainly solved by a large pulling force when unwinding the rope, otherwise the rope cannot be unwound from the drum. If the towing rope of the winch is not stopped in time, some structural element of the winch can also be damaged, most often it is the guide of the wire rope on the rope.
Mehanski vitli so še dodatno zahtevni zaradi svoje konstrukcije, saj so značilni po tem, da se njihovo upravljanje izvaja preko mehanizma, ki ima običajno prvo vrv (običajno zeleno) za aktivacijo vlečenja ter drugo vrv (običajno rdečo) za sprostitev (deaktivacijo) zavore (uporablja se tudi izraz zavora za proporcionalno popuščanje).Mechanical winches are additionally demanding due to their construction, as they are characterized by the fact that their management is carried out via a mechanism that usually has a first rope (usually green) for pulling activation and a second rope (usually red) for releasing (deactivating) the brake ( the term proportional yielding brake is also used).
Ko se povleče prva zelena vrv za aktivacijo vlečenja, se avtomatsko aktivira zavora, katera omogoči, da zavorni pas drsi po bobnu vitla, vendar ne zavira, ker se boben vrti v smer navijanja. S tem poteka vrtenje bobna, na katerega se navija vlečna vrv, posledično pa se breme vleče proti vitlu. Ko se spusti prvo vrv za aktivacijo vleka in je breme pripeto, se poskuša boben odvrteti v smer odvijanja žične vrvi, kar pa aktivirana zavora avtomatsko zavre. To omogoča ekscenter, ki je povezan z zavornim pasom.When the first green rope is pulled to activate the drag, the brake is automatically activated, allowing the brake belt to slide on the winch drum, but not braking because the drum rotates in the winding direction. This rotates the drum on which the towing rope is wound, and as a result the load is pulled towards the winch. When the first rope is lowered to activate the traction and the load is attached, an attempt is made to turn the drum in the direction of unwinding of the wire rope, which is automatically stopped by the activated brake. This is made possible by an eccentric connected to the brake belt.
Tako se boben ne vrti m vrv se ne navija več, pri čemer se posledično vlečeno breme drži pri miru.Thus, the drum does not rotate, the rope does not wind up anymore, and as a result, the towed load remains stationary.
Kadar se mora žično vrv izvleči, se povleče drugo, rdečo vrv za deaktivacijo zavore, kar preko posebnega vzvodovja sprosti zavorni pas in boben se lahko prosto vrti, pri čemer je vzvodovje povezano z zavornim pasom bobna vitla, tako da lahko preko ročice vpliva na zavorni pas zavore, ki se ga lahko tudi le delno popušča. S potegom druge vrvi se zavoro lahko sprosti na dva načina, in sicer proprocionalno z rahlim vlečenjem, da se breme postopno popušča, ali pa se poteg izvede do skrajnega položaja, ko se zavora bobna popolnoma deaktivira, vzvodovje se pri tem zaklene in vrv se prosto odvije. Slednje se na primer uporabi, ko je potrebna vleka vrvi ob pripenjanju bremena. Pri delovanju zavore za proporcionalno popuščanje se kardanska gred oziroma verižnik z verigo za prenos vrtilnega momenta iz pogona na boben še vedno vrti (stanje prostega teka).When the wire rope needs to be pulled out, the second, red rope is pulled to deactivate the brake, which releases the brake belt via a special lever and the drum can rotate freely, the lever being connected to the brake belt of the winch drum, so that it can influence the brake through the lever the brake band, which can also only be partially loosened. Pulling the second rope can release the brake in two ways, proportionally with a slight pull to gradually ease the load, or pulling to the extreme position where the drum brake is completely deactivated, locking the lever and freeing the rope unroll. The latter is used, for example, when it is necessary to pull the rope when attaching the load. During the operation of the brake for proportional reduction, the cardan shaft or the sprocket with the chain for transferring the torque from the drive to the drum is still rotating (idle state).
V kolikor se ponovno povleče prva vrv za aktivacijo vleka, se zavora ponovno aktivira in zgoraj opisani postopek ponovi.If the first traction activation rope is pulled again, the brake is reactivated and the process described above is repeated.
Tehnični problem, ki ga pričujoči izum rešuje, je torej konstrukcijska zasnova mehanizma, ki bo zanesljivo izklopil funkcijo vlečenja pri mehanskem vitlu, pri čemer mora omogočati tudi enostavno vračanje v osnovni položaj, v katerem je odvijanje vrvi in posledično vlečenje bremena omogočeno.The technical problem that the present invention solves is therefore the structural design of the mechanism, which will reliably switch off the pulling function of the mechanical winch, while it must also enable easy return to the basic position, in which the unwinding of the rope and consequently the pulling of the load is enabled.
Stanje tehnikeState of the art
Po evropskem patentu št. 3095748 je znana rešitev vitla z varnostnim mehanizmom za izklop navijanja vrvi, kjer izklop končnega stikala sproži potisni element, ki ga porine v končno stikalo vrtljivo vpeta podložka na nastavku vodila vrvi, ko nastavek končnika zaradi navijanja vlečne vrvi doseže podložko in jo porine v pokončen položaj. Mehanizem je lahko vgrajen v vitle z električnim ali hidravličnim upravljanjem funkcije navijanja in odvijanja vlečne vrvi z ali brez odvijalne vrvenice. Ta rešitev se razlikuje od pričujočega izuma, ker izklop ni samo mehanski.According to European patent no. 3095748 is a well-known winch solution with a safety mechanism for turning off the rope winding, where the turning off of the limit switch triggers a push element that is pushed into the limit switch by a rotatably clamped washer on the rope guide fitting, when the extension attachment reaches the washer due to the winding of the towing rope and pushes it into the upright position . The mechanism can be installed in winches with electric or hydraulic control of the function of winding and unwinding the towing rope with or without an unwinding cord. This solution differs from the present invention in that the shutdown is not merely mechanical.
Rešitev stop stikala opisana v patentu JP6050697 je prilagojena za vitel, ki je vgrajen v avto. Prekinitev pogona vlečne vrvi je izvedena mehansko, pri čemer je na eni strani okoli ene osi vrtljivi preklopni del, katerega končni del vrvi potisne. Ob potisku se premakne sklopka, ki vklaplja in izklaplja priključno kardansko gred PTO, da vitel preneha navijati vrv. Ta rešitev se od izuma razlikuje v tem, da je izklop vrtenja drugače zasnovan, saj je izum vezan na gozdarski vitel, katerega boben se ne poganja preko kardanske gredi.The stop switch solution described in patent JP6050697 is adapted for a winch installed in a car. The suspension of the traction rope drive is performed mechanically, with a rotating switch part on one side around one axis, the end part of which pushes the rope. When pushed, the clutch moves, which engages and disengages the PTO PTO so that the winch stops winding the rope. This solution differs from the invention in that the turning off is designed differently, as the invention is tied to a forestry winch, the drum of which is not driven via a cardan shaft.
Opis rešitve tehničnega problemaDescription of the solution to the technical problem
Bistvo mehanskega vitla z mehanskim stop stikalom po izumu je v tem, da ima mehansko stop stikalo bovden znotraj katerega poteka žična vrv povezana na enem koncu na potisni element nameščen na ustju vodila vlečne vrvi, na drugem koncu pa na izklopni mehanizem, ki se ob naletu končnega dela vrvi na potisni element premakne iz neaktivne v aktivno pozicijo zaradi prenosa preko omenjene žične vrvi.The essence of a mechanical winch with a mechanical stop switch according to the invention is that the mechanical stop switch has a bowden inside which the wire rope runs, connected at one end to a push element installed at the mouth of the pull rope guide, and at the other end to a disconnection mechanism, which in case of collision of the end part of the rope on the push element moves from the inactive to the active position due to transmission via the mentioned wire rope.
Ustje vodilnega dela vlečne vrvi je opremljeno z vzmetno podprtim potisnim elementom, ki je prednostno oblikovan kot podložka ali ploščica z odprtino za potek vlečne vrvi, ki je s podpornimi elementi povezan na notranji del potisnega elementa, ohišje vodila vlečne vrvi ali ustja le-tega. Bovden, znotraj katerega je napeljana žična vrv, je nameščen na potisni element oziroma njegov notranji del, žična vrv pa je pritrjena v sredini med notranjim delom in zunanjo podložko oziroma ploščico. Bovden in žična vrv v njem sta nato speljana do izklopnega mehanizma in na drugem koncu je bovden pritrjen na osnovno ploščo ali njen nastavek, žična vrv pa je pritrjena na izklopno ploščo. Ob naletu končnega dela vlečne vrvi na potisni element se prenese gibanje na izklopno ploščo, ki je v notranjosti vitla, s pomočjo omenjene žične vrvi vodene v bovdnu. Izklopni mehanizem v notranjosti ali zunanjosti vitla je sestavljen iz: osnovne plošče oblikovane kot podložka z dvema nasproti usmerjenima krakoma oziroma ročicama, pri čemer je zgornji krak povezan z mehanizmom aktivacije, torej z zeleno vrvjo za aktivacijo vlečenja oziroma navijanja vrvi na boben vitla, izklopne plošče, na katero je preko nastavka in vijakov z maticami pritrjena žična vrv, ki je vodena znotraj bovdna, pri čemer je bovden dodatno vpet še na daljšem, zgornjem kraku osnovne plošče ali nastavku pritrjenem na le-tem,The mouth of the guide part of the pulling rope is equipped with a spring-supported pushing element, which is preferably designed as a washer or a plate with an opening for the course of the pulling rope, which is connected with supporting elements to the inner part of the pushing element, the housing of the guide of the pulling rope or its mouth. The bow, inside which the wire rope is installed, is placed on the push element or its inner part, and the wire rope is fixed in the middle between the inner part and the outer washer or tile. The bowden and the wire rope in it are then guided to the trip mechanism and at the other end the bowden is attached to the base plate or its attachment and the wire rope is attached to the trip plate. When the end part of the pulling rope hits the push element, the movement is transferred to the cut-off plate, which is inside the winch, with the help of the mentioned wire rope guided in the bow. The shut-off mechanism inside or outside the winch consists of: a base plate shaped like a washer with two oppositely directed arms or levers, whereby the upper arm is connected to the activation mechanism, i.e. with a green rope for activating the pulling or winding of the rope on the winch drum, the cut-off plate , to which a wire rope is attached via a socket and screws with nuts, which is guided inside the bow, while the bow is additionally clamped on the longer, upper arm of the base plate or on the joint attached to it,
- ohišja, ki je oblikovano kot podložka z enim krakom, ki je usmerjen približno pravokotno ali pod katerim drugim kotom glede na linijo obeh krakov osnovne plošče, pri čemer je omenjeni krak opremljen z izvrtino za povezavo s sklopko pogona bobna ter ušesom za vpetje vzmeti, ter pri čemer je ohišje lahko privarjeno na opcijske puše za lažjo namestitev na glavno os vitla, dveh vzmeti, ki vračajo prvo in ohišje iz končne pozicije v začetno pozicijo, in sicer je o prva vzmet vpeta na krak ohišja in ogrodje vitla, ter je o druga vzmet vpeta na zgornji krak osnovne plošče, prednostno preko nosilca, ter izklopno ploščo,- the housing, which is designed as a washer with one arm, which is oriented approximately perpendicularly or at some other angle to the line of the two arms of the base plate, wherein said arm is equipped with a bore for connection to the clutch of the drum drive and an eye for clamping the spring, and where the housing can be welded to optional bushings for easier installation on the main axis of the winch, two springs that return the first and the housing from the final position to the initial position, namely o the first spring is clamped to the arm of the housing and the frame of the winch, and is o the second spring is attached to the upper arm of the base plate, preferably via the support, and the cut-out plate,
- pri čemer so vse plošče nameščene na glavno os vitla, na katero je vpet tudi glavni boben vitla, s pomočjo potrebnih distančnikov in ležajev, in je med osnovno ploščo ter ohišjem razporejen vsaj en omejevalni element, ki je prednostno izveden kot najmanj tri kroglice, in ki je razporejen v ustreznih utorih ali luknjah,- whereby all the plates are mounted on the main axis of the winch, to which the main drum of the winch is also attached, with the help of the necessary spacers and bearings, and at least one limiting element is arranged between the base plate and the housing, which is preferably implemented as at least three balls, and which is arranged in the appropriate grooves or holes,
- je izklopna plošča opremljena z utori ali luknjami za sprejem omenjenega omejevalnega elementa, prednostno kroglic, valjčkov ali pritisnih zatičev, ter je prilagojena, da se po premiku žične vrvi znotraj bovdna, ročica zasuka, s čemer se utori prekrijejo z luknjami na osnovni ročici, kar vodi do pomika omejevalnega elementa, prednostno kroglic in razklenitev vezi med osnovno ploščo in ohišjem.- the cut-off plate is equipped with grooves or holes for receiving the mentioned limiting element, preferably balls, rollers or pressure pins, and is adapted so that after the movement of the wire rope inside the bow, the handle rotates, whereby the grooves overlap with the holes on the base handle, which leads to the movement of the limiting element, preferably the balls, and the loosening of the bond between the base plate and the housing.
Kroglice morajo biti za zanesljivo delovanje vsaj tri, optimalno jih je pet. Namesto kroglic se lahko uporabi tudi ustrezne premične valjčke ali pritisne zatiče, ki delujejo na enak ali podoben način kot opisane kroglice.There must be at least three balls for reliable operation, five are optimal. Instead of balls, suitable movable rollers or pressure pins can be used, which work in the same or similar way as the described balls.
Mehansko stop stikalo deluje tako, da se s potegom zelene vrvice na vitlu in posledično osnovne plošče aktivira sklopko in s tem delovanje vitla (navijanje vrvi na boben oziroma vlečenje bremena). Ob naletu končnega dela vrvi na potisni element nameščen na škripcu vitla, prednostno na vzmetno podprto potisno ploščico na ustju vodila škripca, se mehansko silo preko žične vrvi vodene v bovdnu prenese na izklopno ploščo, ki se zarotira in posledično sprosti moment oziroma silo zaklepa med osnovno ploščo in ohišje ali ročico osnovne plošče in ročico ohišja. Slednja je preko droga nameščenega v ležaju ohišja povezana z mehanizmom sklopke, ki posledično skoči v nulti položaj in izklopi vlečenje vitla. Ko se sprosti zeleno vrvico, s katero se aktivira osnovno ploščo in se z rdečo vrvico na vitlu sprosti zavoro, da se lahko izvleče žična vrv za vlečenje bremena iz vitla, se osnovna plošča in ohišje s pomočjo vzmeti postavita v nulti položaj. Z rotacijo izklopne plošče se kroglice oziroma omejevalni element premaknejo iz utorov v izklopni plošči v utore v ohišju, kar pomeni, da se poziciji osnovne plošče in ohišja zopet zakleneta, tako da sta zopet osnovna plošča in ohišje gibljiva skupaj. Tako je mehanizem sklopke zopet pripravljen za aktivacijo oziroma vlečenje bremena z vitlom. Povratek v izhodiščno stanje, v katerem je navijanje spet možno, se lahko namesto z vzmetmi izvede tudi z drugo ročico ali vzvodom, kar je očitno strokovnjaku na področju iz komponent ter opisa delovanja zgoraj opisane rešitve.The mechanical stop switch works in such a way that by pulling the green cord on the winch and consequently the base plate, the clutch is activated and thus the operation of the winch (winding the rope onto the drum or pulling the load). When the final part of the rope hits the push element installed on the winch pulley, preferably on the spring-supported push plate at the mouth of the pulley guide, the mechanical force is transferred via the wire rope guided in the bowden to the release plate, which rotates and consequently releases the torque or the locking force between the basic plate and housing or base plate lever and housing lever. The latter is connected to the clutch mechanism via a rod installed in the bearing of the housing, which consequently jumps to the zero position and turns off the winch pull. When the green cord is released to activate the base plate and the red cord on the winch is released to release the brake to allow the wire rope to pull the load out of the winch, the base plate and housing are spring-loaded to the zero position. With the rotation of the cut-off plate, the balls or the limiting element move from the grooves in the cut-off plate to the grooves in the housing, which means that the positions of the base plate and the housing are locked again, so that the base plate and the housing are again movable together. Thus, the clutch mechanism is again ready for activation or pulling the load with the winch. The return to the initial state, in which winding is again possible, can be done with another lever or lever instead of springs, which is obvious to an expert in the field from the components and the description of the operation of the solution described above.
Mehanski vitel z mehanskim stikalom za prekinitev navijanja vrvi na boben vitla po izumu bo v nadaljevanju podrobneje opisan s pomočjo izvedbenega primera in slik, ki prikazujejo:The mechanical winch with a mechanical switch for breaking the winding of the rope on the winch drum according to the invention will be described in more detail in the following with the help of an example and pictures showing:
Slika 1Figure 1
Slika 2Figure 2
Slika 3Figure 3
Slika 4Figure 4
Slika 5Figure 5
Ustje vodilnega dela vlečne vrvi z vzmetno podprtim potisnim elementomThe mouth of the guide part of the pulling rope with a spring-supported push element
Eksplozijska slika izklopnega mehanizma v notranjosti mehanskega vitla po možnem izvedbenem primeru iz kota, ki prikazuje utore v ohišjuExploded view of the release mechanism inside the mechanical winch after a possible embodiment from an angle showing the slots in the housing
Eksplozijska slika izklopnega mehanizma prikazan na sliki 2 iz drugega kota, ki prikazuje utore v izklopni ploščiAn exploded view of the trip mechanism shown in Figure 2 from another angle showing the grooves in the trip plate
Izklopni mehanizem prikazan na slikah 2 in 3 v sestavljenem stanjuThe shut-off mechanism shown in Figures 2 and 3 in the assembled state
Prerez izklopnega mehanizma iz slike 4Cross-section of the shutdown mechanism from Figure 4
Slika 1 prikazuje ustje 1 škripca, ki je opremljeno z vzmetno V podprtim potisnim elementom, kije oblikovan kot podložka ali ploščica 11 z odprtino za potek vlečne vrvi, ki je s podpornimi elementi 12 povezan na notranji del 13 potisnega elementa, ohišje vodila vlečne vrvi ali ustja le-tega. Bovden B, znotraj katerega je napeljana žična vrv Ž, je nameščen na notranji del 13 potisnega elementa, žična vrv pa je pritrjena v sredini med notranjim delom 13 in zunanjo podložko oziroma ploščico 11. Bovden B in žična vrv Ž v njem sta nato speljana do izklopnega mehanizma, ki je prikazan na slikah 2, 3 m 4. Slika 4 prikazuje sestavljen izklopni mehanizem, medtem ko se na slikah 2 in 3 vidi še vmesne ležaje za vgradnjo na gred vitla, distančno pušo in distančnike. Izklopni mehanizem v notranjosti vitla po prednostnem izvedbenem primeru je sestavljen iz:Figure 1 shows the mouth 1 of the pulley, which is equipped with a spring-supported pushing element V, which is formed as a washer or plate 11 with an opening for the passage of the pulling rope, which is connected with supporting elements 12 to the inner part 13 of the pushing element, the housing of the pulling rope guide or its mouth. Bowden B, inside which the wire rope Ž is routed, is placed on the inner part 13 of the pushing element, and the wire rope is fixed in the middle between the inner part 13 and the outer washer or plate 11. Bowden B and the wire rope Ž in it are then guided to of the cut-out mechanism, which is shown in figures 2, 3 and 4. Figure 4 shows the assembled cut-out mechanism, while figures 2 and 3 also show intermediate bearings for installation on the winch shaft, spacer bushing and spacers. The shut-off mechanism inside the winch according to the preferred embodiment consists of:
osnovne plošče 3 oblikovane kot podložka z dvema nasproti usmerjenima krakoma 31 in 32, pri čemer je zgornji krak 31 povezan z mehanizmom aktivacije, torej z zeleno vrvjo za aktivacijo vlečenja oziroma navijanja vrvi na boben vitla, izklopne plošče 2, na katero je preko nastavka in vijakov z maticami pritrjena žična vrv Ž, ki je vodena znotraj bovdna B, pri čemer je bovden B dodatno vpet še na daljšem, zgornjem kraku 31 osnovne plošče 3 oziroma nastavku 33 pritrjenem na le-tem, ohišja 4, ki je oblikovan kot podložka z enim krakom 41, ki je usmerjen približno pravokotno ali pod katerim drugim kotom glede na linijo obeh krakov 31 in 32 osnovne plošče 3, pri čemer je omenjeni krak 41 opremljen z izvrtino za ležaj 42 za povezavo s sklopko pogona bobna ter ušesom za vpetje vzmeti 43, dveh vzmeti, ki vračajo ročice iz končne pozicije v začetno pozicijo, in sicer je o prva vzmet vpeta na krak ohišja 4 in ogrodje vitla, ter je o druga vzmet vpeta na nosilec pritrjen na krak osnovne plošče ter izklopno ploščo, pri čemer sta obe plošči 2, 3 in ohišje 4 nameščeni na glavno os vitla, na katero je vpet tudi glavni boben vitla, s pomočjo potrebnih distančnikov 6, distančnih puš 7 in dveh ležajev 8 za vgradnjo na gred vitla, inbase plate 3 shaped as a washer with two oppositely directed arms 31 and 32, whereby the upper arm 31 is connected to the activation mechanism, i.e. with a green rope for activating the pulling or winding of the rope on the winch drum, the cut-off plate 2, to which it is attached via the attachment and a wire rope Ž attached to screws with nuts, which is guided inside the bowstring B, while the bowstring B is additionally clamped on the longer, upper arm 31 of the base plate 3, or the joint 33 attached to it, the housing 4, which is shaped like a washer with one arm 41, which is oriented approximately perpendicularly or at some other angle with respect to the line of both arms 31 and 32 of the base plate 3, wherein said arm 41 is equipped with a bearing bore 42 for connection with the drum drive clutch and an eye for clamping the spring 43 , of two springs that return the levers from the final position to the initial position, namely the first spring is clamped to the arm of the housing 4 and the winch frame, and the second spring is clamped to the support attached to the arm of the base plate and the release plate, both of which are plates 2, 3 and housing 4 are installed on the main axis of the winch, on which the main drum of the winch is also attached, with the help of the necessary spacers 6, spacer bushings 7 and two bearings 8 for installation on the winch shaft, and
- pri čemer je med osnovno ploščo ter ohišjem 4 razporejenih pet kroglic 5, ki so razporejene v ustreznih utorih 2a, 4a ali luknjah 3a,- whereby five balls 5 are arranged between the base plate and the housing 4, which are arranged in the corresponding grooves 2a, 4a or holes 3a,
- je izklopna plošča 2 opremljena z utori 2a ali luknjami za sprejem kroglic, ter je prilagojena, da se po premiku žične vrvi znotraj bovdna, plošča 2 zasuka, s čemer se utori 2a prekrijejo z luknjami 3a na osnovni plošči 3, kar vodi do pomika omejevalnega elementa, prednostno kroglic 5 in razklenitev vezi med osnovno ploščo 3 in ohišjem 4.- the release plate 2 is equipped with grooves 2a or holes for receiving balls, and is adapted so that after the movement of the wire rope inside the bow, the plate 2 rotates, whereby the grooves 2a overlap with the holes 3a in the base plate 3, which leads to a movement of the limiting element, preferably the balls 5 and the release of the connection between the base plate 3 and the housing 4.
Slika 5 prikazuje prerez izklopnega mehanizma, kjer je kroglica med osnovno ploščo 3 in ohišjem 4, tako da sta povezani med seboj in je vlečenje omogočeno. Izklopna plošča 2 ima utor, kateri se ob zasuku izklopne plošče 2 po naletu končnega dela vrvi na potisni element 11 poravna z luknjami osnovne plošče 3, kar premakne kroglice 5 med osnovno ploščo 3 in izklopno ploščo 2 in prekine navijanje. Za vrnitev v izhodiščno stanje, v katerem je aktivacija vlečenja zopet omogočena. Ker so elementi razklenjeni, poteg zelene vrvi za ponovno aktivacijo vrvi ne rezultira v vlečenju, je potrebno elemente vrniti v izhodiščno stanje, torej ponovno povezati obe plošči, osnovno 3 in ohišjem 4. To v prvi fazi delno naredi vzmet, ki je pripeta na ogrodje in krak 32 plošče 3, nato se do končne začetne lege ploščo 3 povleče z rdečo vrvico vitla. Takšen začetni položaj je potreben za vsak delovni cikel (vlek bremena), ki je bil zaustavljen s pomočjo končnega stikala.Figure 5 shows a cross-section of the release mechanism where the ball is between the base plate 3 and the housing 4 so that they are connected to each other and the pull is enabled. The release plate 2 has a groove which, when the release plate 2 is rotated, aligns with the holes of the base plate 3 after the end of the rope hits the push element 11, which moves the balls 5 between the base plate 3 and the release plate 2 and stops the winding. To return to the initial state in which drag activation is enabled again. Since the elements are unlocked, pulling the green rope to reactivate the rope does not result in a pull, it is necessary to return the elements to their initial state, i.e. to reconnect the two plates, the base 3 and the housing 4. This is partially done in the first stage by a spring attached to the frame and the arm 32 of the plate 3, then the plate 3 is pulled to the final starting position with the red line of the winch. Such an initial position is required for each work cycle (pulling the load) that has been stopped by means of a limit switch.
Claims (7)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI202100228A SI26289A (en) | 2021-12-20 | 2021-12-20 | Mechanical winch with a mechanical switch to stop winding the rope onthe winch drum |
| EP22212377.0A EP4201866A1 (en) | 2021-12-20 | 2022-12-08 | A mechanical winch with a mechanical switch for terminating winding of a rope on the winch drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI202100228A SI26289A (en) | 2021-12-20 | 2021-12-20 | Mechanical winch with a mechanical switch to stop winding the rope onthe winch drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SI26289A true SI26289A (en) | 2023-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SI202100228A SI26289A (en) | 2021-12-20 | 2021-12-20 | Mechanical winch with a mechanical switch to stop winding the rope onthe winch drum |
Country Status (2)
| Country | Link |
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| EP (1) | EP4201866A1 (en) |
| SI (1) | SI26289A (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6050697B2 (en) | 2013-02-12 | 2016-12-21 | 株式会社岡村製作所 | Stacking equipment |
| DE102013209361A1 (en) * | 2013-05-21 | 2014-11-27 | M.A.T. Malmedie Antriebstechnik Gmbh | Drive train for hoists |
| EP3042875B1 (en) * | 2015-01-08 | 2017-12-27 | Ricca Andrea & C. S.n.c. | Winch for forestry, agricultural and the like machines |
| SI24997A (en) | 2015-05-22 | 2016-11-30 | PIĹ EK - VITLI KRPAN, d.o.o. | A winch with a safety mechanism to stop the winding of the rope |
| US10781087B2 (en) * | 2017-09-28 | 2020-09-22 | Mark S. Soderberg | Trailer mounted capstan winch |
-
2021
- 2021-12-20 SI SI202100228A patent/SI26289A/en active IP Right Grant
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2022
- 2022-12-08 EP EP22212377.0A patent/EP4201866A1/en active Pending
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| EP4201866A1 (en) | 2023-06-28 |
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