CS202183B1

CS202183B1 - Facility for reciprocal rolling of two prestressed cables

Info

Publication number: CS202183B1
Application number: CS779377A
Authority: CS
Inventors: Viliam Poltarsky
Original assignee: Viliam Poltarsky
Priority date: 1977-11-25
Filing date: 1977-11-25
Publication date: 1980-12-31

Description

Vynález rieši zariadenie na vzájomné zvinovanie dvoch predpínacích lán do predpínacieho dvojlana pre predpaté betonové konštrukcie, predpínané zvinutým dvojlanom.The invention provides a device for coiling two pre-tensioning ropes into a pre-tensioning double strand for pre-stressed concrete structures pre-tensioned by a rolled double-strand.

Doteraz známe zariadenia na zvinovanie dvoch alebo viacerých drótov alebo lán riešia zvinovanie pomocou motoricky otáčených a odvíjených koncov priemo u výrobců. Predpínecie laná, spletené z tahaných drótov pre predpínaciu výstuž, ktoré sú nízkotepelne popúštapé alebo ináč technologicky spracované na vysokú pevnosť a určené na používanie pri výrobě predpatých betonových konštrukcií, sa u výrobců nezvinú do dvojlán. Na stavby a na výrobu predpatých prefabrikátov sú dodávané v jednotlivých zvitkoch. Keď je potřebné dve laná zvinúť do dvojlana , prevádza sa to ručně tak, že sa vytiahnuté samostatné laná zakladajú vzájomne koncami prekrižovaním lán. Táto operácia je pracná, náročná na čas a ludskú prácu.Previously known devices for winding two or more wires or ropes solve the winding by means of motorized and unwound ends at the manufacturers' average. Prestressing ropes, entangled from tensioned prestressing wire, which are low-tempered or otherwise technologically processed to high strength and intended for use in the manufacture of prestressed concrete structures, do not twist into manufacturers. They are supplied in individual coils for construction and for the production of pre-stressed prefabricates. When two ropes need to be rolled into a double rope, this is done manually by pulling the separate ropes together with their ends by crossing the ropes. This operation is laborious, time-consuming and labor-intensive.

Tieto nedostatky sú odstránené zariadením na vzájomné zvinovanie dvoch predpínacích lán podlá vynálezu, ktorého podstatou je protisměrné uloženie dvoch zvitkov lán v lanových klietkach, usporiadaných za sebou v smere vyťahovania oboch lán z klietok cez kruhové vedenie, za pomoci tahadla s otočnou doskou, v ktorej je jedno lano uchopené pevne a druhé otočné.These drawbacks are overcome by the two pre-tensioning device according to the invention, which is based on the opposite arrangement of two coils of ropes in rope cages arranged one after the other in the direction of pulling both ropes out of the cages through a circular guide. one rope gripped firmly and the other rotatable.

Samočinné zvinovanie oboch lán do dvojlana je spósobené protisměrným uložením zvitkov lana v klietkach a využitím energie rotácie lana okolo vlastnej osi pri vytahovaní zo Zatočeného stavu vo zvitku do rovného stavu po vytiahnutí, čo umožňuje otočná doska.The self-winding of both ropes into a double strand is caused by the opposing placement of the rope coils in the cages and by utilizing the energy of rotation of the rope about its own axis when withdrawn from the coiled state in the coil to the flat state after extraction.

Zariadením podlá vynálezu sa dosiahne úplné odstránenie ručněj práce so zakládáním a prekrižovaním koncov lán, ťahadlo je možné ťahať strojným pohonom a je možné vyťahovať via202183The device according to the invention achieves complete elimination of manual work with loading and crossing of rope ends, the drawbar can be towed by machine drive and it is possible to draw via via202183

202 183 cero dvojíc lán naraz jedným ťahadlom. Okrem iného je dvojlano zvinuté s rovnoměrným stúpa ním, kdežto pri ručnom zvíjaní je potřebné uzly prekrižovania lán presúvať po dlžke dvoj lana jeho postupným podvihovaním.202 183 cero pairs of ropes at the same time with one handle. Among other things, the twin rope is wound with an even increase, while in manual winding the rope crossing nodes need to be moved along the length of the rope by gradually lifting it.

Na výkresoch je znázorněný příklad zariadenia na vzájomné zvinovanie dvoch predpínacích lán podlá vynálezu* kde na obr. 1 je schématicky znázorněné zariadenie v náryse a čiastočne aj v pozdlžnom řeze a na obr. 2 je v pozdlžnom řeze detail prevedenia otočnej došky a uchytenia koncov lán v otočnej doske.The drawings show an example of a device for coiling two pre-tensioning ropes according to the invention. 1 is a schematic front and partially longitudinal sectional view of the device, and FIG. 2 is a longitudinal sectional view of an embodiment of the rotating thatch and the attachment of the rope ends in the rotating plate.

Tahadlo 1, pohybujúce sa na podvozku, je opatřené doskou otočnou okolo osi vytahovania dvoch lán. V doske 2 sú súoso so smerom vyťahovania zakotvené konce lán. Jedno z lán je zakotvené pevne a sposobuje otáčanie došky 2 okolo osi vyťahovania vplyvom vlastněj rotácie pri vystieraní zo vzdialenejšieho zvitku 6 do rovného stavu. Druhé lano je zakotvené otočné, čím je umožnehé otáčanie došky 2. Vlastně otáčanie došky 2 spósobuje prekrižovanie oboch lán, pričom počet křížení je daný počtom rotácií jednéhó z lán okolo osi a jedna úplná rotácia lana o 360° je dosiahnutá vytiahnutím jedného závitu vzdialenejšieho zvitku 6. Obidve laná sú uložené v klietkach 3, j4 vo formě zvitkov 5, £ súoso za sebou a vo zvislej polohe. Zvitky 5, 6 sú zasunuté v klietkach 3, £ vzájomne protisměrně, čo spósobuje pri vytahovaní lán z klietok 2» i úfalšie kríženie lán pri každom vytiahnutí jedného závitu. Lano zo vzdialenejšieho zvitku 6 je vedené cez vnútrajší priestor obruče 8, pevne a súoso umiestnenej v najbližšej klietke 2* Lano z bližšieho zvitku 5 je vedené póza obruč 8 tým istým smerom ako lano zo vzdialenejšieho zvitku 6. Obe laná eú potom Spoločne přesunuté vedením Ί. ^s kruhovým otvorom s priemerom len málo vSčším ako je súčet priemerov oboch lán.The drawbar 1 movable on the chassis is provided with a plate rotatable about the pulling axis of two ropes. In the plate 2 the ends of the ropes are anchored coaxially with the pulling direction. One of the ropes is anchored rigidly and causes the thatch 2 to rotate about the pulling axis due to the actual rotation when wiping from the distal roll 6 to a flat state. The second rope is anchored rotatably to allow rotation of the thatch 2. Actually, the rotation of the thatch 2 causes both ropes to cross, the number of crossings being determined by the number of rotations of one of the ropes around the axis and one complete 360 ° rotation. Both ropes are housed in cages 3, 4 in the form of coils 5, 6 coaxially in a vertical position. The coils 5, 6 are inserted in the cages 3, 6 in the opposite direction, which, when pulling the ropes out of the cages 2, causes a more intense crossover of the ropes each time one thread is removed. The rope from the distant coil 6 is guided through the outer space of the hoop 8, fixedly and coaxially located in the nearest cage 2 * The rope from the closer coil 5 is guided by the hoop pose 8 in the same direction as the rope from the distal coil 6. . ^{with a} circular hole with a diameter only slightly higher than the sum of the diameters of the two ropes.

Uvedeným příkladem nie ®ú vyčerpané všetky možnosti riešenia zariadenia na vzájomné zvinovanie dvoch predpínacích lán do predpínacieho dvoj lana podlá vynálezu. Jedným ťahadlom je možné vytahovat viacero dvojíc lán pomocou viacerých otočných dosiek. Samotná otočná doska móže byť uložená otočné v tahadle centrálně, alebo móže mať obvodové uloženie. Uloženie móže byť na klzných alebo valivých ložiskách. Tahadlo móže byť tahané ručně, alebo s výhodou móže ‘byť hiožené ma 'podvozku so strojným pohonom. Na podvozku móže byť tahadlo zavesené aj žhoma·. ÍÍJaTšíe možnoeti využitia vynálezu je možné z případu na případ prispósobiť konkrétným podmierikam.By way of example, not all possibilities of solving the device for twisting two pre-tensioning ropes into the pre-tensioning rope according to the invention are exhausted. It is possible to pull out several pairs of ropes by means of several turntables. The turntable itself can be mounted rotatably in the drawbar centrally, or it can have a peripheral bearing. The bearing may be on plain or roller bearings. The drawbar may be towed by hand, or preferably may be towed with a machine-driven chassis. The drawbar can also be hung on the chassis. Further applications of the invention may be adapted on a case-by-case basis to particular conditions.

Φ r e d m e t v y n á 1 e z uΦ r e d m e t i n e e u

Claims

2 202 183 cero pair of ropes at once with a single puller. Among other things, the twin rope is rolled up with an even gradient, whereas with the manual twist the nodes of the crossing need to be moved along the length of the twin rope by gradual lifting. FIG. 1 is a schematic representation of a device in front and partial view in a longitudinal section, and FIG. 2 is a longitudinal sectional view of an embodiment of a rotary thatch and attachment of rope ends in FIG. turntable. The trolley 1, moving on the chassis, is provided with a plate 2 rotatable about the axis of extraction of the two ropes. In the plate 2, the ends of the ropes are anchored to the direction of withdrawal. One of the ropes is anchored firmly and causes the dowel 2 to rotate about the axis of extraction due to the rotation of the rim from the distant coil 6 into a flat state. The second rope is anchored rotatably, thus allowing the turntable to rotate. The actual rotation of the turntable 2 causes the crossing to take place, wherein the number of crossings is given by the number of rotations of one of the ropes around the axis and one complete rotation of the rope by 360 ° is achieved by pulling one thread of the more distant roll 6. The two arms are placed in a cage 3, 4 in the form of coils 5, 6 co-axially and in a vertical position. The cores 5, 6 are inserted in the cage 3, 4 opposite to each other, which causes the cage to cross from the cages. each time one thread is pulled out. The rope of the remote coil 6 is guided through the inner space of the hoop 8, fixedly and coaxially located in the nearest cage 2 * the shell of the coil 5 is guided the pose of the hoop 8 in the same direction as the rope of the distant coil 6. The two ropes are then jointly moved by the guide Ί . with a circular opening having a diameter of only a little greater than the sum of the diameters of the two ropes. By way of example, not all possibilities of the device for mutual co-prestressing of the two prestressing lines into the prestressing double rope according to the invention are exhausted. It is possible to pull out several pairs of ropes with one turntable by means of several rotary plates. The rotating plate itself can be mounted rotatably in the tractor centrally or can have a peripheral bearing. It can be mounted on sliding or rolling bearings. The tractor can be pulled by hand, or it may be advantageous to have a chassis with a machine drive. It may also be desirable to mount a chassis on the chassis. Other embodiments of the present invention may be adapted to the particular circumstances of the case. Met re vy vy u u u u ovanie ovanie ovanie ovanie ovanie ovanie ovanie ovanie ovanie ovanie ovanie ovanie ovanie ovanie ovanie ovanie ovanie ovanie ovanie ovanieariadenie ariadenie ovanie ariadenie ovanie ovanie ovanie ovanie ovanie ovanie ovanie ovanie ovanie ovanie ovanie ovanie ovanie že že že že že že že provided with an offset gripping means for firmly gripping the end of the rigid rope and with the second grip for rotatably gripping the end of the second rope in the rotary plate (2) and of the two cages (3, 4) placed one behind the other in the twin-pull direction; 6 / ropes, the axes of which are parallel to the double strand, and in the middle of the closer cage (3), a hoop (8) is rigidly mounted for guiding the rope from a distant cage (4) and between 3,202,183 closer to the lantern / 3/8 @ fc {BETWEEN BOLT / 2 / is the fixed line / 7 / with the lead hole4 »» 3i.ce Μη. »2 drawings