CN2309192Y - Hot plate-straightening machine - Google Patents

Abstract

The utility model relates to a medium-plate straightening machine, which comprises an electrical motor, a shaft coupling, a speed reducer, a distributor case, a universal-joint spindle with a crosshead, a machine frame, a depressing device, an unloading device, an upper roller device, a lower roller device, an upper force receiving frame, a lower force receiving frame and a guiding and guarding device. The machine frame is a combined pretension-typed machine frame, a tilting device is arranged on the machine frame to cause that an included angle is formed by the connecting line of the roller centers of an upper row of straightening rollers and the connecting line of the roller centers of a lower row of straightening rollers; the upper roller device and the upper force receiving frame are mutually connected by a hydraulic spring clamping device, and a bracket device and a roller changing device are arranged on the machine frame. The straightening machine of the utility model has the advantages of strong rigidity, large straightening scope, less straightening gates, and the shortening of the time of changing rollers.

Description

A kind of cut deal thermal straightening machine

The utility model relates to a kind of plate leveler, and it is arranged on the Heavy Plate Production line, is used for the finished product hot steel plate of leveling after rolling, and its glacing flatness is up to state standards or customer requirements.

At present, the straightener of domestic use, its rack construction mostly is mesa structure, and its shortcoming is a poor rigidity, and straightening capacity is low, the thickness range that can align little (steel plate/sheet metal=4～5 times); Be parallel rollers system on the aligning mode, promptly arrange smoothing roll roll centre line and last row's smoothing roll roll centre line opposing parallel down, straightening quality is poor, needs through multi-pass (3～7 passage) aligning, and straightening quality still can not satisfy the new standard-required of country; Roll change bothers very much, needs disassembled equipment, roll changing time to reach more than 10 hours during roll change; Backing roll is adjusted difficulty, and equipment operation rate is low, and labour intensity is big.

The purpose of this utility model is intended to overcome above-mentioned the deficiencies in the prior art, proposes a kind of good rigidly, few and the cut deal thermal straightening machine that can fast roll changing of aligning passage.

The scheme that realizes above-mentioned purpose is: a kind of cut deal thermal straightening machine, comprise motor, shaft coupling, decelerator, distributor box, universal crosshead jointing shaft, frame, screwdown gear, discharge mechanism, last roller arrangement, following roller arrangement and guide and guards, it is characterized in that: frame is with two entablatures, two inboards have between the column of spigot surface and the base with four threads and nut by four hydraulic elongators and high-pressure oil pump, make to give and tightly be assembled into combination and give the compact form frame with upper member, be equipped with stressed between two spigot surfaces of frame, last roller arrangement is by last stressed support, connect by the hydraulic spring grease cup gripping mechanism between them, tiling arrangement is housed on the frame, bracket system and changing rig.

Tiling arrangement is made up of motor, band-type brake, worm gear, eccentric shaft, slide block and lower stress frame, the lower roll erection seat is on the lower stress frame, lower stress frame two ends are the convex shaped arc face, there is the spill arc surface to match with it on the frame, eccentric shaft passes lower stress frame center, when eccentric shaft rotates, by slide block the lower stress frame is swung along arc surface, following row's smoothing roll roll centre line and last row's smoothing roll roll centre line have angle.

Bracket system is made up of hydraulic cylinder, bearing, truss girder, bracket, synchronizing shaft, synchromesh gear and tooth bar, hydraulic cylinder body is connected with bearing, piston end is connected with truss girder, have on the truss girder with smoothing roll and arrange bracket accordingly up and down, each bracket centre-to-centre spacing is consistent with smoothing roll centre-to-centre spacing, and it matches with the cannelure of universal-joint spindle sleeve, and there is a synchronizing shaft below of truss girder, on the axle a synchronous gear is housed, gear is meshed with synchronous tooth bar on being contained in frame.

Changing rig is made up of motor, reductor, sprocket wheel, chain, roll change buggy and roll change frame, and motor drives sprocket wheel after reductor slows down, and sprocket wheel spurs the roll change buggy that places on the roll change frame by chain.

Four identical hydraulic spring grease cup gripping mechanisms are made up of oil cylinder, handle, spring and T-shape bolt, spring places the below of oil cylinder piston, T-shape bolt one end and piston hinge, bolt and piston can be with axially moving, bolt can be done rotation relative to piston and move, the other end is connected with the top roll mounting, and handle is connected with bolting.

The frame of straightener is improved to combinations thereof by mesa structure gives the compact form structure, rigidity obviously strengthens, under the hot down yield the same terms of steel plate, straightening steel plate thickness range (steel plate/sheet metal) can reach 8～10 times, and old-fashioned straightener can only reach 5-6 doubly; In addition, because the innovation on the aligning mode, changing traditional parallel rollers is that non-parallel roller is, exceeds the proper limits in righting a wrong, and has produced good leveling effect, and steel plate is through 1-3 passage aligning, and the steel plate unflatness can be enhanced productivity less than new nation's standard; Aspect maintenance, adopt changing rig of the present utility model, roll changing time＜1 hour has been saved roll changing time greatly, improves the operating rate of rolling line.

Below in conjunction with accompanying drawing the utility model is described in further detail.

Fig. 1 is the utility model rack schematic diagram.

Fig. 2 is the utility model tiling arrangement transmission schematic diagram.

Fig. 3 is that the A-A of tiling arrangement shown in Figure 2 is to view.

Fig. 4 is the utility model hydraulic spring grease cup gripping mechanism schematic diagram.

Fig. 5 is the utility model bracket system schematic diagram.

Fig. 6 is the utility model changing rig schematic diagram.

Fig. 7 is that the A of Fig. 6 is to view.

Fig. 8 is the utility model equipment front view.

Fig. 9 is the utility model equipment vertical view.

Figure 10 is the front view of the utility model straightening machine body.

Figure 11 is the left view of straightening machine body shown in Figure 10.

Figure 12 is the right view of straightening machine body shown in Figure 10.

Embodiment one: 1-4 in conjunction with the accompanying drawings, accompanying drawing 8-12, straightener by main driving motor 1 through shaft coupling 2 transmission speed reducers 3, reductor 3 is two slow-speed shaft outputs, through two shaft couplings, 4 travelling gear distributor boxes 5, gear distribution box 5 is ten output shafts, and ten universal crosshead jointing shaft 6 one ends connect gear distribution box 5, the corresponding smoothing roll 7 that connects of the other end; The support of smoothing roll 7 supported rollers 8, last roller arrangement by last row's smoothing roll 7, on arrange backing roll 8, top roll mounting 9 is formed, last row's smoothing roll 7 and top backing up roll 8 are contained in the top roll mounting 9, following roller arrangement by under arrange smoothing roll 7, arrange backing roll 8, lower roll mounting 10, limit roller 11 and limit roller down and adjust needle dial 12 and form, under arrange smoothing roll 7, limit roller 11, lower support roller 8 and the limit roller is adjusted needle dial 12, be contained in the lower roll mounting 10, the lower roll erection seat is on lower stress frame 14; Stressed 13 of last roller arrangement supports, connection between them is by being that four identical hydraulic spring grease cup gripping mechanisms 21 are realized, this device is made up of oil cylinder 22, handle 23, spring 24 and T-shape bolt 25 respectively, spring 24 places the below of oil cylinder 22 pistons, T-shape bolt 25 1 ends and piston hinge, bolt 25 can be with axially moving with piston, and bolt 25 can be done rotation relative to piston and move, the other end of bolt 25 is connected with top roll mounting 9, and handle 23 is fixedlyed connected with bolt 25.When oil cylinder 22 was oil-filled, spring 24 compression T-shape bolts stretched out, and make T-shape bolt 25 half-twists, roller arrangement and last stressed 13 take apart on this moment, and when draining the oil, spring 25 recovers, the withdrawal of T-shape bolt makes roller arrangement still be connected with last stressed; For solving present rack construction poor rigidity, the shortcoming that straightening capacity is low, this frame adopts combination to give the compact form frame, it is that two entablatures 27, two inboards are had between the column 28 of spigot surface 32 and the base 29 with four threads 30 and nut 31, by four hydraulic elongators 33 and high-pressure oil pump 34, make to give tightly to be assembled into as a whole frame with upper member; Last stressed 13 be contained in the frame 24 can oscilaltion along its spigot surface 32, last stressed 13 elevating movement is by screwdown gear 35 transmissions, it is to be made of shaft coupling 38, the worm reducer 39 transmission housing screws 40 of motor 36 through band band-type brake 37, in order to handle overload and steel-fastening accident automatically rapidly, housing screw 40 lower ends and on be provided with fast discharging device 41 between stressed 13, this device is prior art; In order to make last stressed 13 to be close to discharge mechanism 41 all the time, be provided with the bascule of forming by four oil cylinders 47, the middle balance staff 48 on its cylinder body is supported on the frame 26, and piston rod 49 1 ends link to each other with last stressed 13; In order further to improve straightening capacity, transmission side (left side) in frame 26 is equipped with tiling arrangement, changing traditional parallel rollers is that non-parallel roller is, promptly row's smoothing roll roll centre line and last row's smoothing roll roll centre line have angle down, this tiling arrangement is by lower stress frame 14, slide block 15, eccentric shaft 16, worm gear 17, reductor 18, band-type brake 19 and motor 20 are formed, lower stress frame 14 two ends are the convex shaped arc face, there is the spill arc surface to match with it on the frame 26, eccentric shaft 16 passes lower stress frame 14 centers, slide block 15 is contained on the eccentric shaft 16, motor 20 rotates through band-type brake 19 during work, worm gear 17 drives eccentric shaft 16 rotations, by slide block 15 lower stress frame 14 is swung along arc surface, the relative horizontal line of lower stress frame 14 upper surfaces produces, thereby realized that entrance side smoothing roll drafts and outlet side drafts are linear decrease, have improved straightening quality; Import and export the position at straightener guide and guards 64 is housed, correcting enters the steel plate position of straightener, in order to avoid scratch frame 26.

The hot steel plate of finished product after rolling is delivered to straightener through the straightener front roller-way, before steel plate enters straightener, technological parameter according to steel plate: steel grade, thickness of slab, plate are wide, temperature etc., determine the opening degree of smoothing roll, arrange the amount of fascinating of smoothing roll, the adjustment amount and the aligning speed of limit roller down, when steel plate is walked out straightener, when nose trend up or down, the position of adjustable outlet side roller, it is straight that steel plate is guaranteed.Straightener has symmetrical structure, can carry out two-way aligning.

Embodiment two: 1-11 in conjunction with the accompanying drawings, in order to improve the roll change speed of straightener, present embodiment is equipped with bracket system 50 on frame 26 transmission sides (left side) except that having the identical structure of the foregoing description one, on its fore side (right side) changing rig 57 is housed.Bracket system 50 is by hydraulic cylinder 51, bearing 65, truss girder 52, bracket 53, synchromesh gear 54, synchronizing shaft 55 and tooth bar 56 are formed, hydraulic cylinder 51 cylinder bodies are connected with bearing 65, piston end is connected with truss girder 52, have on the truss girder 52 with smoothing roll 7 and arrange bracket 53 accordingly up and down, each bracket 53 centre-to-centre spacing is consistent with smoothing roll 7 centre-to-centre spacing, bracket 53 matches with the cannelure of universal crosshead jointing shaft 6 sleeves, there is a synchronizing shaft 55 below of truss girder 52, on the axle two synchromesh gears 54 are housed, gear 54 is meshed with synchronous tooth bar 56 on being contained in frame 26, for guaranteeing synchronism, gear 54 and tooth bar 56 are the part that is divided into two with processing; Changing rig 57 is made up of motor 58, reductor 59, sprocket wheel 60, chain 61, roll change buggy 62 and roll change frame 63, and motor 58 drives sprocket wheel 60 after reductor 59 slows down, and sprocket wheel 60 spurs the roll change buggy 62 that places on the roll change frame 63 by chain 61.

The process of changing smoothing roll is: by screwdown gear 35 last roller arrangement is fallen down on the roller arrangement, the oil-filled hydraulic spring grease cup gripping mechanism 21 of opening, and make T-shape bolt 25 half-twists, roller arrangement and last stressed 13 are taken apart, start changing rig 57, make roll change buggy 62 reach down the roller arrangement place, and be connected with it with pin, hydraulic cylinder 51 to bracket system 50 is oil-filled, making hydraulic cylinder 51 drive truss girder 52 moves upward, hold up universal crosshead jointing shaft 6, starting changing rig 57 makes roll change buggy drive up-down rollers device leave frame 26, and be parked on the roll change frame 63, driving is hung out old up-down rollers device respectively, hang on new up-down rollers device again, starting changing rig 57 sends into new equipment in the frame 26, arranging smoothing roll 7 heads up and down inserts in universal crosshead jointing shaft 6 holes, starting screwdown gear 35 makes stressed 13 and drops on the top roll mounting 9, hydraulic spring grease cup gripping mechanism 21 is oil-filled, and make T-shape bolt 25 half-twists, go up roller arrangement and last stressed 13 connection after draining the oil, oil cylinder 51 is drained the oil, truss girder 52 descends, make truss girder 51 break away from universal-joint spindle 6, take roll change buggy 62 apart and be connected, start changing rig motor 58 and make roll change buggy 62 get back to original position with the pin of following roller arrangement.

Claims (5)

1. cut deal thermal straightening machine, comprise motor, shaft coupling, decelerator, distributor box, universal crosshead jointing shaft, frame, screwdown gear, discharge mechanism, last roller arrangement, following roller arrangement and guide and guards, it is characterized in that: frame is with two entablatures, two inboards have between the column of spigot surface and the base with four threads and nut by four hydraulic elongators and high-pressure oil pump, make to give and tightly be assembled into combination and give the compact form frame with upper member, be equipped with stressed between two spigot surfaces of frame, last roller arrangement is by last stressed support, connect by the hydraulic spring grease cup gripping mechanism between them, tiling arrangement is housed on the frame, bracket system and changing rig.

2. advance a kind of cut deal thermal straightening machine according to claim 1, it is characterized in that: tiling arrangement is made up of motor, band-type brake, worm gear, eccentric shaft, slide block and lower stress frame, the lower roll erection seat is on the lower stress frame, lower stress frame two ends are the convex shaped arc face, there is the spill arc surface to match with it on the frame, eccentric shaft passes lower stress frame center, when eccentric shaft rotates, by slide block the lower stress frame is swung along arc surface, following row's smoothing roll roll centre line and last row's smoothing roll roll centre line have angle.

3. according to the described a kind of cut deal thermal straightening machine of claim 1, it is characterized in that: bracket system is made up of hydraulic cylinder, bearing, truss girder, bracket, synchronizing shaft, synchromesh gear and tooth bar, hydraulic cylinder body is connected with bearing, piston end is connected with truss girder, have on the truss girder with smoothing roll and arrange bracket accordingly up and down, each bracket centre-to-centre spacing is consistent with smoothing roll centre-to-centre spacing, it matches with the cannelure of universal-joint spindle sleeve, there is a synchronizing shaft below of truss girder, on the axle a synchronous gear is housed, gear is meshed with synchronous tooth bar on being contained in frame.

4. according to the described a kind of cut deal thermal straightening machine of claim 1, it is characterized in that: changing rig is made up of motor, reductor, sprocket wheel, chain, roll change buggy and roll change frame, motor drives sprocket wheel after reductor slows down, sprocket wheel spurs the roll change buggy that places on the roll change frame by chain.

5. according to the described a kind of cut deal thermal straightening machine of claim 1, it is characterized in that: the hydraulic spring grease cup gripping mechanism is made up of oil cylinder, handle, spring and T-shape bolt, spring places the below of oil cylinder piston, T-shape bolt one end and piston hinge, the other end is connected with the top roll mounting, and handle is connected with bolting.

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