CN201324772Y - Bending and straightening machine - Google Patents
Bending and straightening machine Download PDFInfo
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- CN201324772Y CN201324772Y CNU2008202412326U CN200820241232U CN201324772Y CN 201324772 Y CN201324772 Y CN 201324772Y CN U2008202412326 U CNU2008202412326 U CN U2008202412326U CN 200820241232 U CN200820241232 U CN 200820241232U CN 201324772 Y CN201324772 Y CN 201324772Y
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Abstract
The utility model discloses a bending and straightening machine used for continuously straightening strip in steel industry. The machine comprises an outlet and an inlet main transmission and tension device, a hydraulic system and a main body. The main body is additionally provided with a rapid opening oil cylinder which can quickly open when welds of the strip steel are passing through the main body and then be reset instantly to normal operation after passing, thus ensure no mutual abrasion between the roll surface and the strip; the arrangement of a backup roll on a roll box is changed into surface contact from line contact, which can maintain precision after long-time usage and ensure the quality of strip-straightening; a rotary joint is a preloading-type structure and adopts an assembled needle roller thrust bearing which has great bearing capacity. With the spring function, the rotary joint tightly contacts an ejector pin of a gear seat, and no impact force is generated by axial-direction moving during the operation of working rolls and median rolls, thus prolong the service life; the limit gear seat can conveniently replace single rolls in an upper roll box; for the lower roll box, when releasing the screw, a plurality of forward ejector pins automatically withdraw from the rotary joint under the spring function at the same time, thereby being convenient to replace the working rolls and the median roll assemblies.
Description
Technical field
The utility model relates to the employed stretch bending-straightening machine of steel industry continuous straightening band, is the different serial stretch bending-straightening machine of a kind of form.
Background technology
Stretch bending-straightening machine belongs to the accuracy of manufacture and requires metallurgical equipment high, can high efficiency continuous straightening band, is widely used in steel industry and non-ferrous metal industry, is used to eliminate the ternary defectives such as limit wave, wooden dipper song, camber of band, improves the plate face quality of band.Using at present more at home is German CLECIM type, also also has other type.But no matter be that what type all is made up of these several parts usually, that is: inlet main transmission, outlet main transmission, inlet tensioner, outlet tensioner, straightening machine body, hydraulic system, control system etc.
Be subjected to all multifactor influences through the template quality behind the straightener aligning, with regard to straightener itself, the roller system that is made up of a plurality of roller boxes is its core.Under the rational prerequisite of roller system configuration, the structure of roller box directly influences the complete machine precision.Fig. 8 is a roller cartridge prior art constructions sketch, and Fig. 9 is the local representative structure that amplifies prior art of the II of swivel joint in the roller box, and Figure 10 is the E-E enlarged drawing of Fig. 8, among the figure: the 34-block seat; The 35-swivel joint; The 36-backing roll; The 37-intermediate calender rolls; The 38-working roll; 39-roller case.There is following defective in existing roller box: 1. the bearing-surface of mounting support roller 36 is right-angle planes on the roller case 39, backing roll is that line contacts with the roller case, the impression that caves in appears in stressed rear surface easily, big deviation appears in the axiality of same several backing rolls of row in assembling back, cause intermediate calender rolls 37 can not keep good the contact with backing roll 36, changed the stress of working roll 38, intermediate calender rolls 37, backing roll 36 and premature failure, intermediate calender rolls 37 depth of parallelisms after causing simultaneously assembling are overproof.Scattering and disappearing of roller box precision directly influences the strip straightening quality; 2. be subjected to spatial constraints, what swivel joint 35 adopted is miniature bearing, and axial bearing capacity is little, phenomenon often occurs burning to death, causes working roll not rotate.Capital of every appearance causes strip surface seriously to abrade, and needs to shut down to handle; Simultaneously, swivel joint is easily loosening, owing to dieback bears bigger axial force and radial load causes fractureing; 3. change working roll, intermediate calender rolls, or change swivel joint and all need the hold-down screw of block seat 34 bottoms is unscrewed and mobile backward block seat, it is not too convenient to change.Especially the online roll change of top roll box, whole several the rollers that move the back reversal of the natural order of things of block seat have not had support simultaneously, need the number people to cooperate the ability complete operation, and the replacing time is long, influences the operate as normal of production line.
Except that the defective of above-mentioned roller system, also there are the following problems for the straightening machine body prior art: the lower roll box can not fast lifting, weld seam by the time roller box to open the time long, make every coiled strip have tens of rice can not obtain aligning; Because the roller box fails to open fully, in this period, cause band and roll surface to abrade mutually simultaneously, and the roll surface scratch more can have influence on plate face quality afterwards.
Summary of the invention
For overcoming the deficiencies in the prior art, goal of the invention of the present utility model is to provide a kind of stretch bending-straightening machine, make the band of continuous straightening satisfy technological requirement, reach application purpose stable and reliable for performance, simultaneously can fast change working roll and intermediate calender rolls assembly, reduce fault rate, improve the strip straightening quality.
The technical solution of the utility model is: in order to adapt to the needs of different templates, the form of this serial stretch bending-straightening machine has two curved two to be rectified, two curved one rectifys, one curved one rectify etc. 3 kinds, all partly is made up of inlet main transmission, outlet main transmission, inlet tensioner, outlet tensioner, straightening machine body, hydraulic system, control system etc. for every kind.The various forms of main distinctions are the configuration quantity difference of roller box.Operation principle of the present utility model is: the band that the speed official post of the outlet main transmission of setting and inlet main transmission is wrapped between outlet jockey pulley and the inlet jockey pulley forms tension force, putting before this, top working roll and bottom working roll are pressed to band with opposite direction to be made it to produce crooked, band can produce plastic deformation when bending stress is enough big, originally the fiber that the band that has the ternary defective is differed in longitudinal direction length obtains extension in various degree, and output meets the template of technological requirement.
The utility model has increased at straightening machine body opens oil cylinder fast, following lowering or hoisting gear is fixedly mounted on the crossbeam of frame, each device all is made up of reducing motor, lift, ball cage type Hooks coupling universal coupling and encoder, open the lift rigid connection of oil cylinder and following lowering or hoisting gear fast, when the band weld seam can be opened fast in moment during by body, weld seam is by ensureing that roll surface and band do not have mutual scratch phenomenon in the momentary reset operate as normal again after the body.
The utility model innovative design on roller box structure makes the installation of backing roll on the roller box change the face contact into by the line contact, and long-term use can keep precision, ensures the straightening quality of band.
On the external cylindrical surface of the big end end of the coupking shaft of swivel joint of the present utility model combination bearing is housed, form by needle bearing and thrust bearing combination, combination bearing is contained in the macropore of fittings body, coupking shaft is a ladder-type structure, its miner diameter end end is threaded, and the miner diameter end root has a boss, and the other end is with spring between the boss of combination bearing and coupking shaft, spring overcoat has thrust sleeve, and the fittings body aperture is embedded with alloy body.Owing to adopted the big needle thrust bearing of bearing capacity, under spring action, keeps closely contacting between the push rod of swivel joint and block seat, the impulsive force of no working roll, axial float generation when intermediate calender rolls is worked has prolonged service life.
The preceding push rod of convenient roll change block seat of the present utility model, back push rod penetrates preceding bearing respectively, the through hole of rear support and screw top are to swivel joint, screw threads is in the screw of preceding bearing, penetrate the endoporus of pressing plate, compress preceding push rod by pressing plate, the hole of push rod was a stepped bore before preceding bearing was installed, in the hole of preceding bearing front end, be with spring on the periphery of sinciput pole-footing portion, before being embedded in, props up in the hole of base rear end lining on the periphery of preceding push rod middle part, before push rod be 3 and more than be distributed on the perpendicular circumference, the periphery of pressing plate has 3 and above groove, and push rod rotates before also preventing in the push rod before it compresses; Rear support has stairstepping unthreaded hole and screw, and the lining on the back push rod periphery is embedded in the hole of rear support front end, and back push rod is spun in the screw of rear support, back push rod be 3 and more than be distributed on the perpendicular circumference.Can realize that top roll box list props up the roller convenient changing, for the lower roll box, unclamp screw, a plurality of preceding push rods withdraw from swivel joint simultaneously automatically under spring action, can fast change working roll, intermediate calender rolls assembly.
The utility model compared with prior art has the following advantages:
1. realize opening fast: the lower roll box can fast lifting, and the time that the roller box is opened when making weld seam by body is very short, meets technological requirement, the mutual scratch phenomenon of no roll surface and band;
2. roller box precision keeps for a long time: the roller case adopts arc surface supporting backing roll, can keep precision for a long time, ensures the strip straightening quality;
3. fault rate reduces: the axial impact force when the prefastening swivel joint has been eliminated working roll, intermediate calender rolls work, and adopt the big needle roller thrust combination bearing of bearing capacity, life-span height;
4. roll change is convenient: can realize that top roll box list props up roller and changes separately, can realize lower roll box roller fast assembling-disassembling.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described:
Fig. 1 of figure below, Fig. 2, Fig. 3, Fig. 4 are of the present utility model two curved two strong diagrams.
Fig. 1 is the utility model front view;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is the front view of the utility model body 4;
Fig. 4 is that the B of Fig. 3 is to view;
Fig. 5 is that the C of smoothing roll box 11 under the utility model is to view;
Fig. 6 is the I partial enlarged view of Fig. 5;
Fig. 7 is the D-D cutaway view Amplified image of Fig. 6;
Fig. 8 is a roller box prior art structure diagram;
Fig. 9 is the local amplification view of the II of Fig. 8;
Figure 10 is the E-E enlarged drawing of Fig. 8.
The specific embodiment
The form of the utility model series stretch bending-straightening machine has two curved two to be rectified, two curved one rectifys, one curved one rectify etc. 3 kinds, and the structure difference shows the straightening machine body aspect.The structure diagram of two curved two strong bodies 4 is (right charging form) as shown in Figure 3, Figure 4; Two curved one strong contrasts with Fig. 3, Fig. 4 have been reduced upper straightening roll box 16, last lowering or hoisting gear 18, slewing rollers device 15; One curved one rectify contrast with Fig. 3, Fig. 4 reduced slewing rollers device 15, upper straightening roll box 16, gone up lowering or hoisting gear 18, gone up bending roll box 20, screwdown gear 21, bending roll box 10 down fast.The utility model series stretch bending-straightening machine also has left charging form.
The utility model series stretch bending-straightening machine is formed as shown in Figure 1 and Figure 2 (rectifying with two curved two is example), is made up of outlet main transmission 1, outlet tensioner 2, hydraulic system 3 (control system does not show in the drawings), straightening machine body 4, inlet tensioner 5, inlet main transmission 6.Outlet main transmission 1 is made up of encoder 1-1, support 1-2, variable-frequency motor 1-3, decelerator 1-4, shaft coupling 1-5, and encoder can change motor speed and corner data signal into and feed back to control system.Inlet main transmission 6 is consistent with the composition of outlet main transmission 1, is made up of support, shaft coupling, decelerator, variable-frequency motor, encoder equally; Main transmission provides power to corresponding entry and exit tensioner respectively; Inlet main transmission 6, outlet main transmission 1 drive the jockey pulley of inlet tensioner 5 and the jockey pulley of outlet tensioner 2 respectively with certain speed discrepancy, make the band that is wrapped on the jockey pulley form the desired tension force of straightening process and to Way out continuous conveyor material; As shown in Figure 2, hydraulic control system 3 mainly is made up of pumping plant 3-2, valve platform 3-1, hydraulic piping 3-3.
As shown in Figure 3, Figure 4, two curved two rectify stretch bending-straightening machine bodies 4 by open fast oil cylinder 7, down lowering or hoisting gear 8, down bending roll box 9, down bending roll box 10, down smoothing roll box 11, frame 12, terminal board 13, slewing rollers device 14, slewing rollers device 15, locker 17, go up lowering or hoisting gear 18, slewing rollers device 19, go up bending roll box 20, fast screwdown gear 21, go up parts such as bending roll box 22, slewing rollers device 23 and form.Open the piston of oil cylinder 7 and the lift 8-3 employing screw thread rigid connection of following lowering or hoisting gear 8 fast for 3 groups 6, lift plays technology fine setting effect, and oil cylinder then works the effect of opening fast when allowing band.In the course of work when the band weld seam fast when the body 4, the cylinder body of oil cylinder is regained under the oil pressure effect, the lower roll box that is free to float on the cylinder body can get out of the way weld seam because of losing the cylinder body supporting quick decline of moment under the deadweight effect, weld seam rises under the oil pressure effect by cylinder body after the body 4, the lower roll box can moment along with the rising guarantee operate as normal that resets.Like this, just solved prior art because the roller box is opened the long quality problems of bringing of time.
As shown in Figure 3, Figure 4,3 covers lowering or hoisting gear 8 down are fixedly mounted on the crossbeam of frame 12, and each device all is that encoder 8-1, ball cage type Hooks coupling universal coupling 8-2, lift 8-3 and reducing motor 8-4 form.When bending roll box 9 under the needs adjustment, bending roll box 10, (this moment, oil cylinder 7 was failure to actuate) during the insertion amount of smoothing roll box 11 down down, can by each down lowering or hoisting gear 8 move respectively and realize.Forward starts the drive motors 8-4 of lowering or hoisting gear 8 down, power is delivered to lift 8-3 by shaft coupling 8-2, contacting back roller box with lower roll box bottom surface benchmark with the cylinder body of the oil cylinder 7 of lift 8-3 rigid connection can slowly rise, and lift bears the downward normal pressure that produces from the aligning band during work.Oppositely start drive motors 8-4, the cylinder body of oil cylinder 7 slowly descends with lift, and the roller box descends under the deadweight effect thereupon.Like this, the operating position of lower roll box just can obtain adjusting.
As Fig. 3, Fig. 4, Fig. 5, Fig. 6, shown in Figure 7, the structure of following bending roll box 9, following bending roll box 10 and following smoothing roll box 11 is similar, all is that (preceding block seat comprises preceding bearing 24, pressing plate 25, preceding push rod 26 etc. by roller case 31, backing roll 28, intermediate calender rolls 29, working roll 30, rotary union assembly 27, convenient roll change block seat; Back block seat comprises back push rod 32, rear support 33 etc.), parts such as blade fin 11-1, conveying roller 11-2, paste block 11-3 form.These three kinds of lower roll boxes float in the window of frame 12 and install, and the rear end is spacing by frame, and front end is locked it in the frame 12 by locker 17, can move up and down according to action request.Off working state lower roll box is that supporting drops on the frame 12 guide rail 12-1 by the roller 11-2 and the paste block 11-3 of bottom.
As shown in Figure 3, Figure 4, frame 12 mainly by roller box guide rail 12-1, memorial archway 12-2, crossbeam 12-3 and etc. parts form.Electric binding terminal box 13,6 cover lockers 17 are installed on it.
As shown in Figure 3, Figure 4, slewing rollers device 14,19,23 is identical with 15 structure, all is made up of slewing rollers 15-2, positioning sleeve 15-1.Positioning sleeve 15-1 is fixedly mounted on the frame 12, is felt relieved by positioning sleeve in the slewing rollers two ends.Slewing rollers play a part the guiding band and turn to.Contact with slewing rollers during the band operation, consequent frictional force makes slewing rollers make pure rolling operation.
As Fig. 3, Fig. 4, shown in, screwdown gear 21 has two covers fast, be contained in respectively on bending roll box 20 and 22, every cover all is made up of oil cylinder 21-1, joint 21-2 and supporting plate 21-3, and be fixedly mounted on frame 12 entablatures by two oil cylinder 21-1, piston rod and supporting plate 21-3 that oil cylinder 21-1 stretches to the below are connected to form the reversal of the natural order of things relocatable form.Last bending roll box 20,22 structures are identical, parts form compare with play smoothing roll box 11 increased steering block 20-1, turned to wheel carrier 20-2, blade fin 20-3, conveying roller 20-4, fixing wheel carrier 20-5, another difference is that block seat 33 is afterwards all used in roller box front-end and back-end.These two last bending roll boxes are hung on the supporting plate 21-3 of quick screwdown gear 21 by roller 20-4 during off working state.During work, two can self contained function the oil cylinder piston of quick screwdown gear 21 stretch out respectively, supporting plate 21-3 is pressed on the last datum level of roller box and with the roller box to be depressed, this moment, roller 20-4 and supporting plate 21-3 broke away from, location datum level on the frame 12 is located the roller box in frame, the normal pressure that makes progress that produces from the aligning band when oil cylinder just can bear work like this.When piston made progress quick indentation synchronously, supporting plate 21-3 fast uplink contacted with roller box roller, the roller box is hung up realization open fast.
As shown in Figure 3, Figure 4, last lowering or hoisting gear 18 is made up of reducing motor 18-1, lift 18-2, ball cage type Hooks coupling universal coupling 18-3, joint 18-4 and supporting plate 18-5, and is fixedly mounted on by lift 18-2 on the last tie-beam of frame 12.The lift 18-2 that stretches to the below is connected to form the reversal of the natural order of things relocatable form by joint 18-4 and supporting plate 18-5.Upper straightening roll box 16 is slightly had any different with the structure of last bending roll box 20: turning to wheel carrier (wheel carrier 20-2 is identical with turning to) and fixedly increasing by two socket cap holding screw 16-1 respectively on the wheel carrier (with fixedly wheel carrier 20-5 is identical).Unless roll change will be operated, upper straightening roll box 16 always is suspended on the supporting plate 18-5 of lowering or hoisting gear by the head rest supporting of holding screw 16-1.Forward start to be gone up the drive motors of lowering or hoisting gear, and power is delivered to lift 18-2 by shaft coupling 18-3, thus the roller box can along with the decline slow in one's movements of lift until the operating position, when this moment, lift can bear work from the normal pressure of smoothing roll.Oppositely start drive motors, last lowering or hoisting gear can drive the upper straightening roll box and slowly rise.
As Fig. 5, shown in Figure 7, the bearing-surface of mounting support roller 28 is and the consistent arc surface of backing roll roll shaft curvature on the roller case 31, be to adopt special circular arc grinding process time processing moulding, making the backing roll and the assembling form of roller case is that face contacts, solved the problem that the depression impression appears in the stressed back of existing line contact structures roller case surface easily, and guarantee the axiality requirement of same several backing rolls of row in assembling back, long-term use can keep the box-packed precision of joining of roller, ensures the straightening quality of band.
As Fig. 5, shown in Figure 6, rotary union assembly 27 of the present utility model is contained in the working roll of upper and lower roll box, the two ends of intermediate calender rolls, the axial force of bringing owing to normal play when being used for bearing working roll, intermediate calender rolls work is made up of parts such as coupking shaft 40, thrust sleeve 41, spring 42, combination bearing 43, fittings body 44, alloy bodies 45.Coupking shaft 40 is a ladder-type structure, the miner diameter end end is threaded, and is used for connecting with working roll 30, intermediate calender rolls 29, and the boss place area of coupking shaft 40 is bigger, can form big frictional force when the roller end face combines, connect the problem of becoming flexible with roller to solve swivel joint; Coupking shaft 40 big end roots are equipped with spring 42, and spring 42 outsides are with thrust sleeve 41, between spring 42 and thrust sleeve 41 and the coupking shaft 40 certain clearance are arranged; Combination bearing 43 also is equipped with in the big end limit portion of coupking shaft 40, and combination bearing 43 is formed by needle bearing and thrust bearing combination; On the external cylindrical surface of combination bearing 43 needle rollers part fittings body 44 is housed, the hole of fittings body 44 other ends is embedded with alloy body 45.Combination bearing 43 loading capabilities are big, and under spring 42 effects, keep closely contacting between the push rod of fittings body 44 and convenient roll change block seat (stopping means), the impulsive force that axial float produces when no working roll 30, intermediate calender rolls 29 work, solve the problem that the prior art swivel joint is burnt to death easily, ensured the operate as normal of production line.
As Fig. 5, shown in Figure 6, the utility model is front end and the back end structure different roller box convenient roll change block seat in end (stopping means), by swivel joint restraint of labour roller, the unexpected operating position that breaks away from of intermediate calender rolls.The stopping means of front end mainly is made up of preceding bearing 24, pressing plate 25, preceding push rod 26, lining 46, spring 47, screw 48, is used for the lower roll box front end of (referring to bending roll box 9,10 and smoothing roll box 11 down down); The stopping means of rear end mainly is made up of rear support 33, back push rod 32, is used for (referring to bending roll box 20,22 and upper straightening roll box 16) front end and rear end of lower roll box (following bending roll box 9,10 reaches smoothing roll box 11 down) rear end and top roll box.Rear end for the front and back ends and the lower roll box of top roll box: rear support 33 is screwed on roller case 31 (the roller case of top roll box is expression in the drawings), back push rod 32 penetrates the through hole top of rear support 33 to rotary union assembly 27, rear support 33 has stairstepping unthreaded hole and screw, lining on back push rod 32 peripheries is embedded in the hole of rear support 33 front ends, back push rod 32 passes through plain washer, spring washer spinning on the outer face of rear support 33, back push rod 32 has 3, be distributed in the outer face of rear support 33, by the position of rotary union assembly 27 restraint of labour rollers, intermediate calender rolls.Front end for the lower roll box: preceding bearing 24 is installed in lower roll box front end, be screwed on roller case 31, the through hole of bearing 24 (inlay busher 46) before preceding push rod 26 cover upper springs 47 penetrate, screw 48 puts spring washer, plain washer, penetrates the screw clamping platen 25 of the preceding bearing 24 of endoporus screw-in of pressing plate 25, and push rod 26 contacts with rotary union assembly 27 before making.The periphery of pressing plate 25 has 3 grooves, and push rod 26 rotates before also preventing in the push rod 26 before it compresses.The hole of push rod 26 is stepped bore before preceding bearing 24 dresses, in the hole of preceding bearing 24 front ends, on the periphery of preceding push rod 26 roots, be with spring 47, lining 48 on the preceding push rod 26 middle part peripheries is embedded in the hole of preceding bearing 24 rear ends, 3 preceding push rods 26 are according to the position of working roll 30, intermediate calender rolls 29, before being distributed on the front end face of bearing 24.
For the lower roll box, unclamp screw, a plurality of preceding push rods 26 withdraw from swivel joint simultaneously automatically under spring 47 effects, can realize the quick dismounting and change of working roll assembly, intermediate calender rolls assembly; For the top roll box, screw out push rod 32 and can realize that top roll box list props up the roller convenient changing, having solved prior art needs the number people to cooperate the roller replacing operation that just can finish.
Claims (10)
1, a kind of stretch bending-straightening machine, the both sides of body (4) dispose inlet tensioner (5), outlet tensioner (2); Inlet tensioner (5), outlet tensioner (2) provide power by inlet main transmission (6), outlet main transmission (1) respectively; The outside rear side of body (4) disposes hydraulic system (3); The porch of body (4) and exit are equipped with slewing rollers device (23) and (15) respectively, between last bending roll box (20) and (22), following bending roll box (9) and (10) and the following smoothing roll box (11) slewing rollers device (19) is housed, between upper straightening roll box (16) and the following smoothing roll box (11) slewing rollers device (14) is housed, forms the two curved two stretch bending-straightening machine structures of rectifying; The intermediate calender rolls (29) of the following smoothing roll box (11) of body (4), working roll (30) two ends are equipped with rotary union assembly (27) and convenient roll change block seat assembly respectively, and last bending roll box (20) and (22), following bending roll box (9) and (10), the intermediate calender rolls of upper straightening roll box (16), working roll two ends also are equipped with rotary union assembly and convenient roll change block seat assembly respectively; The backing roll of top roll box and lower roll box all is directly to be fastened on the roller case by screw, and intermediate calender rolls then freely falls to being placed on the backing roll, and working roll freely falls to being placed on the intermediate calender rolls; Hang on quick screwdown gear (21) last bending roll box (22) and (20), upper straightening roll box (16) is hung on last lowering or hoisting gear (18), float in the frame (12) bending roll box (9) is installed down, (10) and down smoothing roll box (11), frame (12) is the memorial archway formula structure that is tied by crossbeam (12-3), locker (17) is installed on it, locker (17) be used for, the lower roll box is locked in the frame (12), it is characterized in that: following lowering or hoisting gear (8) is fixedly mounted on the crossbeam of frame (12), each device all is by reducing motor (8-4), lift (8-3), ball cage type Hooks coupling universal coupling (8-2) and encoder (8-1) are formed, open the lift rigid connection of oil cylinder (7) and following lowering or hoisting gear (8) fast, be used for realizing that when the band weld seam passes through body (4) fast the lower roll box can descend fast in moment get out of the way weld seam.
2, stretch bending-straightening machine according to claim 1, it is characterized in that: the roller case (31) of following smoothing roll box (11) and the faying face of backing roll (28) are globoidal structure, following bending roll box (9) and (10), down smoothing roll box (11), go up bending roll box (20) and (22), the backing roll of upper straightening roll box (16) and the faying face of roller case are globoidal structure; On the external cylindrical surface of the big end end of the coupking shaft (40) of rotary union assembly (27) combination bearing (43) is housed, combination bearing (43) is contained in the macropore of fittings body (44), coupking shaft (40) is a ladder-type structure, its miner diameter end end is threaded, the other end is with spring (42) between the boss of combination bearing (43) and coupking shaft (40), the outer thrust sleeve (41) that is with of spring (42); Through hole and screw that the preceding push rod (26) of convenient roll change block seat, back push rod (32) penetrate preceding bearing (24), rear support (33) respectively push up to swivel joint, screw (48) is spun in the screw of preceding bearing (24), penetrate pressing plate (25) endoporus, compress preceding push rod (26) by pressing plate (25).
3, stretch bending-straightening machine according to claim 2 is characterized in that: the combination bearing (43) of rotary union assembly (27) is formed by needle bearing and thrust bearing combination, on the external cylindrical surface of needle roller part fittings body (44) is housed.
4, according to claim 2 or 3 described stretch bending-straightening machines, it is characterized in that: the miner diameter end root of the coupking shaft (40) of rotary union assembly (27) has a boss.
5, stretch bending-straightening machine according to claim 4 is characterized in that: fittings body (44) aperture of rotary union assembly (27) is embedded with alloy body (45).
6, stretch bending-straightening machine according to claim 2, it is characterized in that: the hole of push rod (26) was a stepped bore before the preceding bearing (24) of convenient roll change block seat was installed, be with spring (47) in the hole of preceding bearing (24) front end, on the periphery of preceding push rod (26) root, the lining (46) on the periphery of preceding push rod (26) middle part is embedded in the hole of preceding bearing (24) rear end; Before push rod (26) be 3 and more than be distributed on the perpendicular circumference.
7, according to claim 2 or 6 described stretch bending-straightening machines, it is characterized in that: the periphery of the pressing plate of convenient roll change block seat (25) has 3 and above groove, prevents also that when it compresses preceding push rod (26) preceding push rod (26) from rotating.
8, stretch bending-straightening machine according to claim 2, it is characterized in that: the rear support of convenient roll change block seat (33) has stairstepping unthreaded hole and screw, lining on back push rod (32) periphery is embedded in the hole of rear support (33) front end, and back push rod (32) is spun in the screw of rear support (33); Back push rod (32) be 3 and more than be distributed on the perpendicular circumference.
9, stretch bending-straightening machine according to claim 1, it is characterized in that: 3 slewing rollers devices (14), (19), (23) are installed on the frame (12), bending roll box (20), (22) and following bending roll box (9), (10) are housed between slewing rollers device (19) and (23), smoothing roll box (11) is housed down between slewing rollers device (14) and (19), forms the two curved one stretch bending-straightening machine structures of rectifying.Hang on quick screwdown gear (21) last bending roll box (20), (22), locker (17) is installed on the frame (12), locker (17) is used for last bending roll box (20), (22), following bending roll box (9), (10), following smoothing roll box (11) are locked in the frame (12), following lowering or hoisting gear (8) is fixedly mounted on the crossbeam of frame (12), open the lift rigid connection of oil cylinder (7) and following lowering or hoisting gear (8) fast, be used for realizing that when the band weld seam passes through body (4) fast the lower roll box can descend fast in moment get out of the way weld seam.
10, stretch bending-straightening machine according to claim 1, it is characterized in that: 3 slewing rollers devices (14), (19), (23) are installed on the frame (12), bending roll box (22) and following bending roll box (9) are housed between slewing rollers device (19) and (23), smoothing roll box (11) is housed down between slewing rollers device (14) and (19), forms the one curved one stretch bending-straightening machine structure of rectifying.Last bending roll box (22) is hung on quick screwdown gear (21), locker (17) is installed on the frame (12), smoothing roll box (11) was locked in the frame (12) under locker (17) was used for last bending roll box (22), bending roll box (9) reaches down, following lowering or hoisting gear (8) is fixedly mounted on the crossbeam of frame (12), open the lift rigid connection of oil cylinder (7) and following lowering or hoisting gear (8) fast, be used for realizing that when the band weld seam passes through body (4) fast the lower roll box can descend fast in moment get out of the way weld seam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202412326U CN201324772Y (en) | 2008-12-29 | 2008-12-29 | Bending and straightening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202412326U CN201324772Y (en) | 2008-12-29 | 2008-12-29 | Bending and straightening machine |
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| Publication Number | Publication Date |
|---|---|
| CN201324772Y true CN201324772Y (en) | 2009-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202412326U Expired - Lifetime CN201324772Y (en) | 2008-12-29 | 2008-12-29 | Bending and straightening machine |
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| CN (1) | CN201324772Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767126B (en) * | 2008-12-29 | 2012-01-11 | 襄樊博亚精工机器有限公司 | Stretch bending-straightening machine |
| CN102319769A (en) * | 2011-09-23 | 2012-01-18 | 中冶南方工程技术有限公司 | Roll box of high rigidity stretching-bending straightener |
| CN102873137A (en) * | 2012-10-08 | 2013-01-16 | 无锡市欣华泓机械制造有限公司 | Straightener structure convenient in roll replacement |
| CN107350329A (en) * | 2016-03-22 | 2017-11-17 | Sms集团股份有限公司 | Plate stretcher and plate stretch method |
| CN111760911A (en) * | 2020-07-14 | 2020-10-13 | 中冶赛迪工程技术股份有限公司 | Hot-rolled strip steel endless rolling intermediate billet connecting method and equipment |
-
2008
- 2008-12-29 CN CNU2008202412326U patent/CN201324772Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767126B (en) * | 2008-12-29 | 2012-01-11 | 襄樊博亚精工机器有限公司 | Stretch bending-straightening machine |
| CN102319769A (en) * | 2011-09-23 | 2012-01-18 | 中冶南方工程技术有限公司 | Roll box of high rigidity stretching-bending straightener |
| CN102873137A (en) * | 2012-10-08 | 2013-01-16 | 无锡市欣华泓机械制造有限公司 | Straightener structure convenient in roll replacement |
| CN102873137B (en) * | 2012-10-08 | 2015-12-16 | 无锡市欣华泓机械制造有限公司 | A kind of straightener structure being convenient to roll change |
| CN107350329A (en) * | 2016-03-22 | 2017-11-17 | Sms集团股份有限公司 | Plate stretcher and plate stretch method |
| CN107350329B (en) * | 2016-03-22 | 2021-07-09 | Sms集团股份有限公司 | Plate stretching straightener and plate stretching method |
| CN111760911A (en) * | 2020-07-14 | 2020-10-13 | 中冶赛迪工程技术股份有限公司 | Hot-rolled strip steel endless rolling intermediate billet connecting method and equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20091014 Effective date of abandoning: 20081229 |