CS224032B1

CS224032B1 - Equipment for supply and round movement of tubes and mandrels during rolling

Info

Publication number: CS224032B1
Application number: CS976181A
Authority: CS
Inventors: Ladislav Kollar
Original assignee: Ladislav Kollar
Priority date: 1981-12-24
Filing date: 1981-12-24
Publication date: 1983-12-30

Description

Vynález rieši zariadenie na podávanie a pootáčanie rúrok a tfňov pri válcování na dvojpramenných válcovacích stoliciach na rúrky.The invention provides a device for feeding and rotating tubes and mandrels during rolling on two-leg tube rolling stands.

Hydraulické podávanie a pootáčanie rúrok a tfňov u pútnických válcovacích stolíc ná rúrky má náhon ovládania cez kuželové kolá od hlavného náhonu valcovacej stolice pomocou hriadeiov z jednostupňovej převodovky, ktorá otáča, riadiacimi rotačnými šupátkaimi. Šupátka rozvádzajú tlakový olej 3,5 MPa do hydraulického valca pre posuv rúrok medzi pracovně nástroje a hydraulického valca pre pootočenie rúrok-třňov v krajnej úvrati valcovacej klietky.Hydraulic feeding and turning of tubes and shafts in pillar rolling stands The tube has a bevel drive from the main drive of the rolling stand by shafts from a single-stage gearbox that rotates with the control rotary slide valves. The slide valves distribute the pressure oil of 3.5 MPa to the hydraulic cylinder for moving the pipes between the working tools and the hydraulic cylinder for turning the mandrels at the extreme dead center of the rolling cage.

Nárazy tlakového oleja posobiace 80krát za minutu sposobujú praskanie rozvodných rúrok pri ich únavě na cyklické namáhanie, časté je i opotrebovanie těsnění tlakového rozvodu oleja z pryžových tesniacích krúžkov. K častým odchylkám dochádza u rotačných šupátok, takže pootočenie rúrok — — tfňov a posuv rúrok nie je konštantný. Tieto skutočnosti majú nepriaznivý vplyv na geometriu redukovaných rúrok. Zariadenie má veikú spotřebu oleja, elektroenergie a znáčné nároky na údržbu.Pressure oil shocks 80 times a minute cause the pipes to crack when fatigue for cyclic loading, and wear of the oil pressure gasket from the rubber sealing rings is also frequent. Frequent deviations occur with the rotary valves, so that the rotation of the tubes is not constant and the displacement of the tubes is not constant. This has an adverse effect on the geometry of the reduced tubes. The device has a high oil consumption, electricity and significant maintenance requirements.

Uvedené nedostatky odstraňuje zariadenie pozostávajúce z prevodovej skrine, váčky, kladiek, pákového mechanizmu, volno2 běžných spoj ok a sústavy ozubených kolies pódia vynálezu, ktorého podstata spočívá v tom, že v prevodovej skrini je na hnacom hriadeli pevne uchytené koleso, ktoré je v zábere s kolesom, uloženým na hnanom hriadeli spolu s vačkou, ktorá je svojou funkčnou plochou v styku s dolnou kladkou a hornou kladkou uloženými v lunete.The aforementioned drawbacks are eliminated by a device comprising a gearbox, a cam, a pulley, a lever mechanism, a loose common lugs and a gear assembly according to the invention, which is characterized in that the gearbox has a fixedly engaged wheel on the drive shaft. a wheel mounted on the driven shaft together with a cam which is in contact with the lower pulley and the upper pulley mounted in the lunette with its functional surface.

Dolná kladka je spojená s kolesom pevne spojeným s výstupom pootáčacej volnoběžně) spojky, ktoré je v zábere s kolesom otočné uloženým na vloženom hriadeli a koleso pevne spojené s výstupom pootáčacej volnobežnej spojky je v zábere s kolesom uloženým na hriadeli pootáčajúcom tfňové tyče ako i válcované rúrky před a za válcovanou klietkou. Horná kladka je prosíredníctvom pákového mechanizmu spojená s vloženým hriadeiom, na ktorom je pevne uchytené koleso, ktoré je v zábere s kolesom pevne uchyteným na volnobežkovom hriadeli spolu s posúvacou volnoběžnou spojkou, na výstupe ktorej je pevne uchytené koleso, ktoré je v zábere s kolesom pevne uchyteným na spojkovom hriadeli spolu s přesuvným kolesom spojky zaberajúclm s kolesom spojeným so skrutkou pre posun rúrkovozíka. Pevné koleso spojky je v zábere s kolesom pevne uchyteným na rýchloposuvovom hriadeli, ktorý je spojený s elektromotorom, pričom posuvné koleso spojky je presúvacou pákou spojené s hydraulickým presúvačom.The lower pulley is coupled to a wheel rigidly coupled to the idle clutch outlet which engages a wheel rotatably mounted on an intermediate shaft and the wheel rigidly coupled to a idle clutch outlet is engaged with a wheel mounted on a rotating shaft as well as a pole bar. before and after the rolled cage. The upper pulley is connected by means of a lever mechanism to an intermediate shaft on which is fixed a wheel which engages with a wheel fixed on the freewheel shaft together with a shifting freewheel clutch at the outlet of which a fixed wheel is engaged with the wheel mounted on the clutch shaft together with the clutch shift wheel engaging the wheel connected with the bolt for moving the tube. The fixed clutch wheel is engaged by a wheel fixedly mounted on the rapid traverse shaft, which is coupled to an electric motor, the clutch sliding wheel being connected to the hydraulic shifter by a transfer lever.

Výhody zariadenia podl'a vynálezu spočívajú vo zvýšení jeho spolehlivosti, zabezpečení požadovaného geometrického tvaru válcovaných rúrok, úspoře elektrickej energie, zlepšení pracovného prostredia ako i v znížení nárokov na údržbu.The advantages of the device according to the invention consist in increasing its reliability, ensuring the required geometrical shape of the rolled tubes, saving electrical energy, improving the working environment as well as reducing maintenance requirements.

Příklad prevedenia zariadenia podTa vynálezu je znázorněný na přiložených výkresoch, kde představuje obr. 1 kinematická schému a obr. 2 pohlad zhora na uloženié zariadenia v prevodovej skrini.An example of an embodiment of the device according to the invention is shown in the accompanying drawings, in which FIG. 1 shows a kinematic diagram and FIG. 2 is a top view of the gearbox housing.

Zariadenie pozostáva z prevodovej skrine 1, v ktorej je na hnacom hriadeli 27 pevne uchytené koleso 2, ktoré je v zábere s kolesom 28 uloženým na hnanom hriadeli 29 spolu s vačkou 3, ktorá je svou funkčnou plochou ve styku s dolnou kladkou S a hornou kladkou 4, ktoré sú uložené v lunete 26. Dolná kladka S je spojená pákou 7 s kolesom 8, pevne spojeným s výstupom pootáčacej voTnobežnej spojky 11, ktoré je v zábere s kolesom 9 otočné uloženým na vloženom hriadeli 30. Koleso 9 je v zábere s kolesom 10 uloženým na hriadeli pootáčajúcom trhové tyče ako i válcované rúrky před a za valcovacou klietkou.The device consists of a gearbox 1 in which a wheel 2 is fixedly mounted on a drive shaft 27, which engages a wheel 28 mounted on a drive shaft 29 together with a cam 3 which is in contact with its lower roller S and upper roller with its functional surface. The lower pulley S is connected by a lever 7 to a wheel 8 fixedly connected to the output of a pivot in the overrunning clutch 11, which is engaged with the wheel 9 rotatably mounted on the intermediate shaft 30. The wheel 9 is engaged with the wheel 10 mounted on the shaft rotating the market rods as well as the rolled tubes before and after the rolling cage.

Horná kladka 4 je prostredníctvom pákového mechanizmu 12 spojená s vloženým hriadeíom 30, na ktorom je pevne uchytené koleso 13, ktoré je v zábere s kolesom 14 pevne uchyteným na voTnobežkovom hriadeli 31 spolu s posúvacou volnoběžnou spojkou 19, na výstupe ktorej je pevne uchytené koleso 13, ktoré je v zábere s kolesom 16 pevne uchyteným na spojkovom hriadeli 32 spolu s presuvným kolesom 21 spojky 34, zaberajúcim ,s kolesom 17 spojeným so skrutkou pre posuv rúrkovozlka.The upper pulley 4 is connected via a lever mechanism 12 to an intermediate shaft 30 on which the wheel 13 is fixed, which engages the wheel 14 fixed on the freewheel shaft 31 together with a shifting freewheel clutch 19 at the outlet of which the wheel 13 is fixed. which is engaged with the wheel 16 fixedly mounted on the clutch shaft 32 together with the sliding wheel 21 of the clutch 34 engaging the wheel 17 connected with the screw for the tube-tube feed.

Pevné koleso 24 spojky 34 je v zábere s kolesom 23 pevne uchyteným na rýchloposuvovom hriadeli 33, ktorý je spojený s elektromotorom 22. Posuvné koleso 21 spojky 34 je presúvacou pákou 20 spojené s hydraulickým presúvačom. Koleso 2 prenáša krútiaci mement na vačku 3, po ktorej sa odvafuje horná kladka 4 a dolná kladka 5. Zdvih dolnej kladky 5 sa pákou 7 prenáša kolesami 8, 9 a 10 na hriadeí pootáčajúcu trhové tyče ako i válcované rúrky před a za valcovacou klietkou.The fixed clutch wheel 24 engages with the wheel 23 fixedly mounted on the high-speed shaft 33, which is coupled to the electric motor 22. The clutch sliding wheel 21 is the shift lever 20 connected to the hydraulic shifter. The wheel 2 transmits the torque to the cam 3, after which the upper roller 4 and the lower roller 5 are unwound. The lift of the lower roller 5 with the lever 7 is transmitted by the wheels 8, 9 and 10 to the shaft rotating the market rods as well as the rolled tubes before and after the rolling cage.

Konštantné pootočenie tohoto hriadeía v smere hodinových ručičiek zabezpečuje pootáčacia volnoběžná spojka 11. Zdvih hornej kladky 4 sa prenáša pákovým mechanizmom 12 a kolesami 13, 14, 15, 16, 21 a 17 na skrutku pre posuv rúrkovozíka. Rúrkovozík v krajnej úvrati valcovacej klietky zatláča rúrky medzi redukovacie nástroje. Velkost posuvu rúrkovozíka možno nastavit na páke 18 pákového mechanizmu 12 v rozsahu od 0 do 25 mm.Constant rotation of this shaft clockwise is provided by a rotating freewheel clutch 11. The lift of the upper pulley 4 is transmitted by the lever mechanism 12 and the wheels 13, 14, 15, 16, 21 and 17 to the screw for sliding the tube. At the extreme dead center of the rolling cage, the tube carrier pushes the tubes between the reducing tools. The feed rate of the tube can be adjusted on the lever 18 of the lever mechanism 12 in the range of 0 to 25 mm.

Pootáčanie skrutky pre posuv rúrkovozíka proti směru hodinových ručičiek zabezpečuje posúvacia volnoběžná spojka 19. Hydraulický presúvač presúvacou pákou 20 presúva koleso 21 spojky 34 do záběru s kolesom 24 spojky 34, čím sa spojka 34 zapne a pracovný posuv rúrkovozíka sa změní na rychloposuv. Vtedy sú elektromotorom 22 pootáčané kolesá 23, 24, 21 a 17 a tým aj skrutka posuvu rúrkovozíka. Tfňové tyče predchádzajú vrchnou častou prevodovej skrine 1 zavádzacími rúrkaml 25.Rotation of the tube feed screw counterclockwise is provided by the freewheel clutch 19. The hydraulic shifter 20 moves the clutch wheel 21 to the clutch wheel 24 to engage the clutch 34 and to change the working feed of the tube to rapid traverse. At that time, the wheels 23, 24, 21 and 17 are rotated by the electric motor 22 and hence the screw of the tube carriage. The shaft rods pass through the top of the gearbox 1 through the insertion tubes 25.

Claims

224032 with electric motor, the sliding wheel couplings is a transfer lever associated with a hydraulic slide. Advantages of the device according to the invention are to increase its reliability, provide the required geometric shaped rolled tubes, save energy, improve the working environment and increase maintenance requirements. An example of a device according to the invention is shown in the accompanying drawings, wherein FIG. 1 shows a kinematic system and FIG.

2 is a top plan view of the device in the gearbox. The device consists of a gear housing 1 in which a fixed wheel 2 is mounted on the drive shaft 27, which is engaged with the wheel 28 mounted on the driven shaft 29 together with the cam 3, which is in function contact with the lower pulley S and the upper pulley 4, which are stored in the lunette26. The lower pulley S is connected by a lever 7 to the coulter 8 fixedly connected to the outlet of the after-running clutch 11 which is coupled with the wheel 9 rotatably mounted on the inserted shaft 30. The wheel 9 is engaged by the wheel 10 mounted on the shaft. rolling rods as well as rolled tubes forward and behind the rolling cage. The upper pulley 4 is connected by means of a lever mechanism 12 to an intermediate shaft 30, on which the wheel 13 is fixedly fixed and engages with the wheel 14 fixedly attached to the freewheel shaft 31 together with the freewheeling clutch 19 at which it is fixed a retaining wheel 13 which engages with a wheel 16 fixedly mounted on the coupling shaft 32 together with a displacement wheel 21 of the clutch 34 engaging with the wheel 17 coupled to the pipe feed screw. The fixed wheel 24 of the clutch 34 is engaged by a wheel 23 firmly attached to the fast-moving shaft 33, which is connected by a selector motor 22. The sliding wheel 21 of the clutch 34 is a transfer lever 20 coupled to the hydraulic shifter. The wheel 2 has a twisting moment on the cam 3, on which the upper roller 4 and the lower roller 5 are lowered. The lower roller 5 is raised by the lever 7 by the trays 8, 9 and 10 on the shaft of the swivel rod as well as the rolled tubes before and the cage. A clockwise freewheel clutch 11 provides constant clockwise rotation of the shaft. The stroke of the upper load 4 is transmitted by the lever mechanism 12 and the wheels 13, 14, 15, 16, 21 and 17 of the tube feed screw. The tubular sheath in the dead center of the rolling cage of the plunger between the reduction tools. The tubular footprint can be adjusted to the lever 18 of the lever mechanism 12 in the range of 0 to 25 mm. Turning the tube feed screw counterclockwise provides a displacement idle clutch 19. The hydrostatic shift lever 20 moves the clutch wheel 21 into engagement with the clutch wheel 24, whereby the clutch 34 engages the working feed the tubing changes rapidly. At that time, the wheels 23, 24, 21 and 17 are rotated by the electric motor 22, and thus the tubular slide bolt. The bar rods pass through the upper part of the gearbox 1 by the insertion tubes 25. SUBSTANCE A device for feeding and pivoting a roll and a yoke during rolling, comprising a gear box, a cam, a pulley, a lever mechanism, a gear system and a clutch, characterized in that a wheel (2) fixedly mounted on the drive shaft (27) which engages with the wheel (28 j located on the driven shaft (29) together with the cam (3) which is in contact with the lower surface a pulley (5) and an upper pulley (4), which are mounted in the lunar (26), wherein the lower pulley (5) is connected by a lever (7) to the wheel (8), firmly connected to the outlet of the freewheel a clutch (11) which engages with a wheel (9) rotatably supported by an inserted shaft (30), and the wheel (9) is received with a wheel (10) mounted on the shaft of a rotating bar and a rolled tube before and after the rolling cage. the pulley (4) is connected to the intermediate shaft (30) by means of a lever mechanism (12), on which the wheel (13) is fixedly engaged and engages with the wheel (14) fixed to the freewheel shaft (31) together with the displacement a freewheel clutch (19), at the outlet of which is a fixed wheel (15) which is engaged by a wheel (16) fixedly attached to the coupling shaft (32) together with the wheel (21) of the clutch (34) engaging with the displacement wheel (17) coupled to the feed-tube screw and the fixed wheel (24) of the clutch (34) engaging the wheel (23) fixed to the rapid-moving shaft (33) connected to the electric motor ( 22), the sliding wheel (21) of the clutch (34) being coupled to the hydraulic slide by a lever (20).