SI26017A - Mechanical winch with improved safety of the mechanism - Google Patents
Mechanical winch with improved safety of the mechanism Download PDFInfo
- Publication number
- SI26017A SI26017A SI202000116A SI202000116A SI26017A SI 26017 A SI26017 A SI 26017A SI 202000116 A SI202000116 A SI 202000116A SI 202000116 A SI202000116 A SI 202000116A SI 26017 A SI26017 A SI 26017A
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- winch
- rope
- protective housing
- brake
- mechanical
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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
- B66D1/54—Safety gear
- B66D1/56—Adaptations of limit switches
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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
- B66D1/28—Other constructional details
Abstract
Izum sodi na področje gozdarskih vitlov, bolj natančno na področje konstrukcijskih podrobnosti pri mehanskih gozdarskih vitlih, ki so vezane na upravljanje, torej aktivacijo vlečenja in izklop. Pričujoči izum se nanaša na mehanski vitel z izboljšano varnostjo mehanizma za upravljanje. Bistvo mehanskega vitla z izboljšano varnostjo mehanizma za upravljanje je v tem, da je celotno vzvodovje mehanizma skrito znotraj zaščitnega ohišja, ki je na vitel pritrjeno s pomočjo nerazdružljive ali razdružljive zveze, prednostno pa je del ohišja samega vitla, medtem ko se del vrvi ter ročaj za aktivacijo vlečenja ter del vrvi in ročaj za zaustavitev vlečenja nahajajo izven omenjenega zaščitnega ohišja, da so dostopni uporabniku, pri čemer so vrvi na zunanjo stran speljane skozi odprtino v zaščitnem ohišju. Omenjena odprtina, ki je lahko katerekoli oblike, se lahko nahaja na katerikoli strani zaščitnega ohišja.The invention belongs to the field of forestry winches, more precisely to the field of construction details in mechanical forestry winches, which are related to control, ie activation of traction and switching off. The present invention relates to a mechanical winch with improved safety of the control mechanism. The essence of a mechanical winch with improved safety of the steering mechanism is that the entire lever of the mechanism is hidden inside a protective housing attached to the winch by an inseparable or detachable connection, preferably part of the winch housing itself, while part of the rope and handle for activating traction and a part of the rope and the handle for stopping traction are located outside said protective housing so that they are accessible to the user, the ropes being routed to the outside through an opening in the protective housing. Said opening, which may be of any shape, may be located on either side of the protective housing.
Description
Mehanski vitel z izboljšano varnostjo mehanizma za upravljanjeMechanical winch with improved control mechanism safety
Področje tehnikeThe field of technology
Izum sodi na področje gozdarskih vitlov, bolj natančno na področje konstrukcijskih podrobnosti pri mehanskih gozdarskih vitlih, ki so vezane na upravljanje, torej aktivacijo vlečenja in izklop. Pričujoči izum se nanaša na mehanski vitel z izboljšano varnostjo mehanizma za upravljanje.The invention belongs to the field of forestry winches, more precisely to the field of structural details of mechanical forestry winches, which are related to management, i.e. traction activation and deactivation. The present invention relates to a mechanical winch with improved operating mechanism safety.
Ozadje izuma in tehnični problemBackground of the Invention and Technical Problem
Mehanski vitli 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). 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. Tako se boben ne vrti in vrv se ne navija več, pri čemer se posledično vlečeno breme drži pri miru.Mechanical winches are characterized by the fact that they are operated via a mechanism that usually has a first rope (usually green) to activate the pull and a second rope (usually red) to release (deactivate) the brake (the term proportional release brake is also used) . When the first green rope is pulled to activate the drag, the brake is automatically activated, allowing the brake belt to slide over the winch drum, but not braking because the drum rotates in the winding direction. This rotates the drum, on which the tow 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. Thus, the drum does not rotate and the rope is no longer wound, and as a result, the towed load is held still.
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). V kolikor se ponovno povleče prva vrv za aktivacijo vleka, se zavora ponovno aktivira in zgoraj opisani postopek ponovi.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, while the lever is connected to the brake belt of the winch drum, so that it can influence the brake belt via the lever brake, which can also only be partially released. 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). If the first traction activation rope is pulled again, the brake is reactivated and the process described above is repeated.
Znani mehanski vitli imajo omenjeni mehanizem za upravljanje na zunanjem delu vitla, ki je sicer obrnjen stran od bližajočega se vlečenega bremena, vseeno pa je izpostavljen vsem vplivom zunanjosti, torej neželenim dotikom, premikom, umazaniji, zatikanjem vej ali podobnim neželenim dogodkom, ki lahko mehanizem poškodujejo, hkrati pa povzročajo nevarnost pri delu in nezanesljivost delovanja. Zato je tehnični problem, ki ga rešuje pričujoči izum, konstrukcijska rešitev mehanizma, ki bo imel boljšo varnost in s tem zaščito pred vplivi zunanjosti, hkrati pa tudi lepši videz.Known mechanical winches have the mentioned control mechanism on the outer part of the winch, which is facing away from the approaching towed load, but is nevertheless exposed to all external influences, i.e. unwanted touches, movements, dirt, stuck branches or similar unwanted events that can cause the mechanism they damage, and at the same time cause work hazards and unreliability of operation. Therefore, the technical problem that is solved by the present invention is the design solution of a mechanism that will have better safety and thus protection against external influences, and at the same time a more beautiful appearance.
Stanje tehnikeState of the art
Znani mehanski vitli, kot so na primer vitli serij Sl, E in ER proizvajalca Vitli Krpan, imajo zgoraj opisani mehanizem za upravljanje na zunanji strani vitla, kjer je izpostavljen okoljskim vplivom.Well-known mechanical winches, such as the Sl, E and ER series winches manufactured by Vitli Krpan, have the above-described control mechanism on the outside of the winch, where it is exposed to environmental influences.
Prijavitelju ni znan mehanski vitel, ki bi imel drugače razporejen mehanizem za upravljanje.The applicant is not aware of a mechanical winch that has a differently arranged control mechanism.
Nekateri hidravlični vitli imajo kontrolne mehanizme oziroma ventile znotraj ohišja, vendar pa so mehanizmi mehanskih vitlov zaradi svoje velikosti in konstrukcije neprimerni za rešitev, kot jo uporabljajo hidravlični vitli.Some hydraulic winches have control mechanisms or valves inside the housing, but mechanical winch mechanisms are unsuitable for the solution used by hydraulic winches due to their size and construction.
Opis rešitve tehničnega problemaDescription of the solution to the technical problem
Tehnični problem je rešen kot je predstavljeno v neodvisnem patentnem zahtevku, medtem ko so prednostne izvedbe rešitve tehničnega problema predstavljene v odvisnih zahtevkih.The technical problem is solved as presented in the independent patent claim, while preferred embodiments of the solution to the technical problem are presented in the dependent claims.
Mehanski vitel po izumu ima vse običajne konstrukcijske elemente mehanskega vitla, ki so znani strokovnjaku na področju, kot so:The mechanical winch according to the invention has all the usual structural elements of a mechanical winch known to a person skilled in the art, such as:
- ohišje vitla, v katerem je nameščen boben za navijanje vlečne vrvi in lamele sklopke, verižnik z verigo in zavoro, — vrv za aktivacijo vlečenja in navijanja vrvi na boben, ki je preko škripčevja povezana s sklopko bobna vitla,- the winch housing, in which the drum for winding the towing rope and the clutch plate, chain with chain and brake is installed, — the rope for activating the pulling and winding of the rope on the drum, which is connected via a pulley to the clutch of the winch drum,
- vodilo vlečne vrvi ter vlečno vrv s končnim delom.- towing rope guide and towing rope with end part.
Bistvo mehanskega vitla z izboljšano varnostjo mehanizma za upravljanje je v tem, da je celotno vzvodovje mehanizma skrito znotraj togega zaščitnega ohišja, ki je na vitel pritrjeno ali pa prednostno izdelano kot del ohišja vitla, medtem ko se del vrvi ter opcijski ročaj za aktivacijo vlečenja ter del vrvi in ročaj za sprostitev zavore nahajajo izven omenjenega zaščitnega ohišja, da so dostopni uporabniku, pri čemer so vrvi na zunanjo stran speljane skozi odprtino v zaščitnem ohišju. Omenjena odprtina, ki je lahko katerekoli oblike, se lahko nahaja na katerikoli strani zaščitnega ohišja, pri čemer je lahko dodatno odprtina opremljena z elementi za boljše drsenje vrvi. Na primer, izrez je lahko oblečen z gumo ali plastiko, da se zmanjša verjetnost poškodb vrvi zaradi trenja ob prednostno kovinsko ohišje. Samo zaščitno ohišje pa je lahko narejeno iz kateregakoli primernega kovinskega materiala, ki je primeren za ohišja vitlov in podobnih strojev.The essence of a mechanical winch with improved operating mechanism safety is that the entire mechanism lever is hidden inside a rigid protective housing attached to the winch or preferably manufactured as part of the winch housing, while the rope part and the optional handle to activate the pull and the part of the rope and the handle for releasing the brake are located outside said protective housing to be accessible to the user, the ropes being led to the outside through an opening in the protective housing. Said opening, which can be of any shape, can be located on any side of the protective housing, and the opening can additionally be equipped with elements for better sliding of the rope. For example, the cutout may be lined with rubber or plastic to reduce the likelihood of rope damage due to friction against the preferred metal housing. The protective housing itself can be made of any suitable metal material suitable for the housings of winches and similar machines.
Takšna konstrukcija je na zunaj brez štrlečih delov mehanizma, ki se lahko zatikajo ali poškodujejo, kar pomeni večjo varnost, manjšo nevarnost za okvare kot tudi daljšo življenjsko dobo. Hkrati je tudi izgled vitla lepši zaradi ravnih linij.Such a construction has no protruding parts of the mechanism on the outside that can get stuck or damaged, which means greater safety, less risk of breakdowns, as well as a longer service life. At the same time, the appearance of the winch is also better due to the straight lines.
Zaščitno ohišje se namesti na vitel odstranljivo s pomočjo nerazdružljive zveze kot je varjenje ali pa razdružljive zveze z vijaki ali podobnimi elementi, kar omogoča lažji dostop do mehanizma za upravljanje v primeru okvar ali servisa. Prednostno pa je zaščitno ohišje narejeno kot del ohišja samega vitla, kar omogoča boljšo konstrukcijo, varnost in stabilnost.The protective casing is mounted on the winch removable by means of an inseparable connection such as welding or a separable connection with screws or similar elements, which allows easier access to the control mechanism in case of malfunctions or service. Preferably, the protective casing is made as part of the casing of the winch itself, which enables better construction, safety and stability.
Mehanizem za upravljanje mehanskega vitla je običajno sestavljen iz:The mechanism for operating a mechanical winch usually consists of:
- vrvi ter opcijskega ročaja za aktivacijo vlečenja, pri čemer se vrv preko škripcev spelje do ročice povezane s sklopko, ki lahko sproži vrtenje bobna, na katerega se navija vlečna vrv, ter- a rope and an optional handle for pulling activation, whereby the rope is guided via pulleys to a lever connected to a clutch, which can start the rotation of the drum on which the towing rope is wound, and
- druge vrvi in ročice za sprostitev (deaktivacijo) zavore.- other ropes and levers for releasing (deactivating) the brake.
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. Tako se boben ne vrti in vrv se ne navija več, pri čemer se posledično vlečeno breme drži pri miru.When the first green rope is pulled to activate the drag, the brake is automatically activated, allowing the brake belt to slide over the winch drum, but not braking because the drum rotates in the winding direction. This rotates the drum, on which the tow 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. Thus, the drum does not rotate and the rope is no longer wound, and as a result, the towed load is held still.
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). V kolikor se ponovno povleče prva vrv za aktivacijo vleka, se zavora ponovno aktivira in zgoraj opisani postopek ponovi.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, while the lever is connected to the brake belt of the winch drum, so that it can influence the brake belt via the lever brake, which can also only be partially released. 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). If the first traction activation rope is pulled again, the brake is reactivated and the process described above is repeated.
Do sedaj znane rešitve so imele le boben in pogonske dele vključno z zavoro skrite v ohišju samega vitla, ki je v spodnjem sredinskem delu, medtem ko je pri izumu mehanizem tako preoblikovan, da ga je možno integrirati v notranjost ohišja vitla ali prekriti z zaščitnim ohišjem nad bobnom in pogonskimi deli. Tako so zgoraj opisane ročice z zavoro oziroma sklopko povezane od zgoraj, ne pa od strani, kot je bilo to znano do sedaj. Prednostno je mehanizem za upravljanje mehanskega vitla po izumu sestavljen iz:Until now, the solutions known only had the drum and drive parts, including the brake, hidden in the casing of the winch itself, which is in the lower central part, while in the case of the invention, the mechanism is transformed in such a way that it can be integrated inside the casing of the winch or covered with a protective casing above the drum and drive parts. Thus, the levers described above are connected to the brake or clutch from above, but not from the side, as was known until now. Preferably, the mechanism for operating the mechanical winch according to the invention consists of:
prve vrvi za aktivacijo vlečenja, pri čemer se vrv preko škripcev spelje do ročice povezane s sklopko, ki lahko sproži vrtenje bobna, na katerega se navija vlečna vrv, terthe first ropes for activating the traction, the rope being passed through the pulleys to a lever connected to a clutch which can start the rotation of the drum on which the traction rope is wound, and
- druge vrvi za sprostitev (deaktivacijo) zavore, ki je povezana z zavorno ročico, pri čemer je zavorna ročica v osrednjem delu opremljena s krivuljastim izrezom prilagojenim za pomikanje kotalnega elementa, katerega gibanje preko ekscentra vpliva na stanje zavornega pasu na bobnu vitla. Zavorna ročica je nameščena v ohišju zavornega mehanizma, ki je prilagojen za pritrditev na ohišje vitla v bližini zavornega pasu. Kotalni element, ki je lahko sornik, ležaj, valjček ali kateri drug primeren element, ki se lahko premika po krivuljastem izrezu, je nameščen v ohišje zavornega mehanizma in je povezan z ekscentrom tako, da se lahko linearno gibanje prenese na omenjeni ekscenter, ki stisne ali popusti zavorni pas. Ohišje zavornega mehanizma je sestavljeno iz spodnjega dela in nanj pravokotnega levega in desnega dela, ki sta identično oblikovana. Levi in desni del ohišja zavornega mehanizma imata utor, v katerega nalega tečaj, ko se zavorna ročica namesti v ohišje zavornega mehanizma. Tečaj je povezan z ekscentrom preko vzmeti in distančnika. Spodnji del ima odprtino, skozi kateri se namesti distančnik z vzmetjo, ki sta preko ekscentra povezana z zavornim pasom pod ohišjem vitla.- other ropes for releasing (deactivating) the brake, which is connected to the brake lever, whereby the brake lever is equipped in the central part with a curved cutout adapted to move the rolling element, whose movement through the eccentric affects the condition of the brake belt on the winch drum. The brake lever is located in the brake mechanism housing, which is adapted to be attached to the winch housing near the brake band. A rolling element, which can be a bolt, bearing, roller or any other suitable element that can move along a curved cutout, is installed in the housing of the brake mechanism and is connected to the eccentric in such a way that linear motion can be transmitted to said eccentric, which compresses or the brake belt slackens. The housing of the brake mechanism consists of the lower part and the left and right parts perpendicular to it, which are identically designed. The left and right parts of the brake mechanism housing have a groove that the hinge fits into when the brake lever is installed in the brake mechanism housing. The hinge is connected to the eccentric via a spring and a spacer. The lower part has an opening through which a spacer with a spring is installed, which are connected via an eccentric to the brake belt under the winch housing.
V obsegu izuma, kot je tukaj opisan in definiran v zahtevkih, so lahko možne tudi druge izvedbe mehanskega vitla po izumu, ki so jasne strokovnjaku s področja tehnike, kar pa ne omejuje bistva izuma, kot je opisan tukaj in definiran v zahtevkih.Within the scope of the invention as described here and defined in the claims, other implementations of the mechanical winch according to the invention may also be possible, which are clear to a person skilled in the art, which does not limit the essence of the invention as described here and defined in the claims.
Mehanski vitel z izboljšano varnostjo mehanizma za upravljanje bo v nadaljevanju podrobneje opisan s pomočjo slik, ki prikazujejo:The mechanical winch with improved control mechanism safety will be described in more detail below with the help of pictures showing:
Slika 1Figure 1
Slika 2Figure 2
Znan mehanski vitel z zunanjim mehanizmom za upravljanje Mehanski vitel z izboljšano varnostjo mehanizma za upravljanje po izumuKnown mechanical winch with external control mechanism Mechanical winch with improved control mechanism safety according to the invention
Slika 1 prikazuje znan mehanski vitel 1, ki ima mehanizem za upravljanje mehanskega vitla na zunanjosti, pri čemer so boben za navijanje vlečne vrvi in pogonski deli znotraj ohišja samega vitla 1a, mehanizem za upravljanje pa je z njimi povezan od strani. Mehanizem za upravljanje mehanskega vitla prikazanega na sliki 1 je sestavljen iz:Fig. 1 shows a known mechanical winch 1 having a mechanical winch control mechanism on the outside, with the pulling rope winding drum and drive parts inside the winch housing 1a itself, and the control mechanism being connected to them from the side. The mechanism for operating the mechanical winch shown in Figure 1 consists of:
vrvi ter ročaja za aktivacijo vlečenja (ni na sliki), pri čemer se vrv preko škripcev 2 spelje do ročice 3 povezane s sklopko, ki lahko sproži vrtenje bobna, na katerega se navija vlečna vrv, terthe rope and the handle for pulling activation (not shown), whereby the rope is guided via pulleys 2 to the lever 3 connected to the clutch, which can start the rotation of the drum on which the pulling rope is wound, and
- drugo vrv in ročico za sprostitev (deaktivacijo) zavore (ni na sliki).- another rope and lever for releasing (deactivating) the brake (not shown).
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 mehanizem, ki je povezan z zavornim pasom. Tako se boben ne vrti in vrv se ne navija več, pri čemer se posledično vlečeno breme drži pri miru.When the first green rope is pulled to activate the drag, the brake is automatically activated, allowing the brake belt to slide over the winch drum, but not braking because the drum rotates in the winding direction. This rotates the drum, on which the tow 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 a mechanism connected to the brake belt. Thus, the drum does not rotate and the rope is no longer wound, and as a result, the towed load is held still.
Kadar se mora žično vrv izvleči, se povleče drugo, rdečo vrv za deaktivacijo zavore, kar preko posebnega vzvodovja 4 sprosti zavorni pas in boben se lahko prosto vrti, pri čemer je zavorna ročica povezana 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 4 and the drum can rotate freely, the brake lever being connected to the brake belt of the winch drum, so that the lever can influence on the brake band of the brake, 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.
Slika 2 prikazuje mehanski vitel 10 po izumu, ki ima mehanizem za upravljanje z vitlom skrit znotraj kovinskega zaščitnega ohišja 10b, pri čemer je zaščitno ohišje 10b izdelano kot del ohišja vitla 10a. Zaščitno ohišje 10b ima ob strani odprtino 10b', skozi kateri je napeljan del prve vrvi 12 ter ročaj 12a za aktivacijo vlečenja ter del druge vrvi 13 in ročaj za sprostitev zavore 13a, tako da so dostopni uporabniku. Omenjena odprtina 10b', ki je lahko katerekoli oblike, prednostno ovalne, in je opremljena z elementom iz gume ali plastike za boljše drsenje vrvi, tako da se zmanjša verjetnost poškodb vrvi zaradi trenja ob kovinsko ohišje. Zaščitno ohišje 10b ima še druge podolgovate odprtine 10b zaradi dostopa zraka in boljše vidljivosti, v kolikor se pri mehanizmu za upravljanje delovanja mehanskega vitla opazijo težave. Odprtine 10b so lahko kakršnekoli oblike ali pa jih ni, tako da je pločevina gladka.Figure 2 shows a mechanical winch 10 according to the invention having the winch control mechanism concealed within a metal protective housing 10b, the protective housing 10b being made as part of the winch housing 10a. The protective housing 10b has an opening 10b' on the side, through which a part of the first rope 12 and a handle 12a for activating the pull and a part of the second rope 13 and a handle for releasing the brake 13a are routed, so that they are accessible to the user. Said opening 10b', which can be of any shape, preferably oval, and is equipped with a rubber or plastic element for better sliding of the rope, so that the probability of damage to the rope due to friction against the metal casing is reduced. The protective housing 10b also has other elongated openings 10b for air access and better visibility if problems are observed with the mechanism for controlling the operation of the mechanical winch. The openings 10b can be of any shape or absent so that the sheet is smooth.
Claims (8)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI202000116A SI26017A (en) | 2020-06-22 | 2020-06-22 | Mechanical winch with improved safety of the mechanism |
| EP21180483.6A EP3929143B1 (en) | 2020-06-22 | 2021-06-19 | A mechanical winch having a control mechanism with improved safety |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI202000116A SI26017A (en) | 2020-06-22 | 2020-06-22 | Mechanical winch with improved safety of the mechanism |
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| SI26017A true SI26017A (en) | 2021-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| SI202000116A SI26017A (en) | 2020-06-22 | 2020-06-22 | Mechanical winch with improved safety of the mechanism |
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| EP (1) | EP3929143B1 (en) |
| SI (1) | SI26017A (en) |
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| JPS5710035B2 (en) * | 1972-04-13 | 1982-02-24 | ||
| US10343878B2 (en) * | 2017-02-13 | 2019-07-09 | Andrew J Limb | Powered winch retrieval system for harvested big game |
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- 2020-06-22 SI SI202000116A patent/SI26017A/en active IP Right Grant
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| EP3929143A1 (en) | 2021-12-29 |
| EP3929143B1 (en) | 2024-04-10 |
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