CN202185452U - Short stress path rolling mill - Google Patents
Short stress path rolling mill Download PDFInfo
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- CN202185452U CN202185452U CN2011202239517U CN201120223951U CN202185452U CN 202185452 U CN202185452 U CN 202185452U CN 2011202239517 U CN2011202239517 U CN 2011202239517U CN 201120223951 U CN201120223951 U CN 201120223951U CN 202185452 U CN202185452 U CN 202185452U
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- gudgeon
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Abstract
The utility model provides a short stress path rolling mill which comprises a roll system, a roll anti-jumping mechanism, a roll-separating mechanism and a sealing mechanism, wherein disturbance plates of a bearing pedestal positioning device on an operation side of the roll anti-jumping mechanism comprise concave spherical surface slide blocks on the inner side and the outer side of a trunnion and convex spherical surface slide blocks matched with the concave spherical surfaces; an upper locknut and an upper balancing element are arranged on the outer end of an upper adjusting nut of the roll-separating mechanism; a lower locknut and a lower balancing element are arranged at the outer end of a lower adjusting nut of the roll-separating mechanism; the upper and the lower locknuts are sleeved on a pull rod of the roll-separating mechanism through threads; an upper positioning pin and a lower positioning pin are respectively connected with the upper adjusting nut with external threads and the lower adjusting nut with external threads; the sealing mechanism comprises four O-shaped seal rings, four glands, an upper housing and a lower housing; the four O-shaped seal rings are sleeved on the pull rod of the roll-separating mechanism; and the upper housing and the lower housing are respectively mounted at two ends of a bearing pedestal connecting plate of a stop block of the roll anti-jumping mechanism. The utility model has the advantages that the roll jumping amount is smaller, the axial deviation amplitude is smaller, the integrated seal-type structure is more reasonable, the rolling is stable, and the integral rigidity and the rolling precision of the rolling mill are high.
Description
Technical field
The utility model relates to a kind of short stress path rolling mill, particularly a kind of short stress path rolling mill that can be rolled excellent wire rod or ribbon steel.
Background technology
Existing short stress path rolling mill comprises roller system, roll anti-channeling actuation mechanism, roll-separating mechanism, sealing mechanism and support etc.
When rolling, upper and lower roll is rolled excellent wire rod or ribbon steel blank.The top-side of the bearing block connecting plate of the limited block of roll anti-channeling actuation mechanism plays upper and lower roll chock protuberance and moves effect of contraction vertically; The opening degree of control milling train; Meanwhile, the upper and lower lead groove of limited block moves the guiding constraint effect of playing to upper and lower bearing block again vertically.The seam of support plays horizontal move left and right effect of contraction to limited block; The key of support plays limited block and axially moves forward and backward effect of contraction; The loose joint bolt of pretension support plays limited block and moves effect of contraction vertically, bears the axial force and the tilting moment of upper and lower roll simultaneously.
But in the operation of rolling, roll receives the influence of axial force on the one hand, between the upper and lower roll skew to axial can take place; On the other hand under the roll-force effect; It is the simply supported beam of fulcrum that roll can be reduced to fore side bearing block and transmission side bearing block; Two bearing blocks bear the concentrfated load P of roll-force respectively, and roll produces certain flexural deformation, cause bearing block to produce certain dynamic deformation of scratching.Practice shows: the dynamic deformation of scratching of bearing block is whole short stress path rolling mill intrinsic characteristic under roll-force own, should not retrain it.Therefore; Usually take the fore side bearing block to fix; The structure that the transmission side bearing block moves about; That is: for the skew to axial that overcomes upper and lower roll and bearing block scratch the harmful effect that dynamic deformation causes rolling accuracy, the fore side bearing block has can suppress the positioner that upper and lower roll squints to axial; This fore side bearing block positioner by the upper and lower lead of limited block have groove be inserted into the upper and lower roll chock gudgeon of fore side in the groove and be installed in the interior disturbance plate of gudgeon both sides, outer disturbance plate constitutes; The axial dipole field effect of contraction is played to gudgeon in two side through groove, and the diapire of groove plays the horizontal-shift effect of contraction to gudgeon; Disturbance plate through the gudgeon both sides plays the flexible constraint effect to the disturbance of gudgeon.
The actuator drives pull bar of roll-separating mechanism rotates; Upper and lower adjusting nut moves thereupon; Because of upper and lower adjusting nut is become one with upper and lower roll chock respectively through its external screw thread, rack pins, so when pull bar rotated in the pull bar installing hole of adjusted nut, limited block and following adjusting nut, upper and lower adjusting nut did not rotate; Only doing vertical direction moves; That is: the upper and lower roll chock of transmission is symmetrical vertically mobile respectively for pull bar, and upper and lower roll chock drives upper and lower roll, and symmetry is mobile vertically thereupon, the centre distance between adjustment topping roll and the bottom roll; The gravity of the upper and lower roll of balance reduces the intrinsic spring of roll itself.The balancing component of roll-separating mechanism is positioned at outside the bearing block, passes the balancing component installing hole of limited block, and its two ends and upper and lower roll chock pedestal are fixedly linked; Balancing component can be elastic colloid or hydraulic cylinder; Its elastic colloid or hydraulic cylinder are that weight is set the pretension equilibrant force according to roller; Telescopic moving through its piston rod; Eliminate the thread pitch between adjusting nut and the pull bar, reduce the spring of adjusting nut and the thread pitch breaker roll generation of pull bar when rolling.The upper and lower ball ring of roll-separating mechanism can make the certain angle of upper and lower roll chock self-adjusting respectively, avoids upper and lower roll chock to contact with the rigidity of pull bar, and bearing block is stressed better.
Sealing mechanism can prevent that foreign material such as iron scale, water from getting into bearing block and/or limited block, avoids phenomenons such as adjusting nut and/or limited block generation jam.
The deficiency of existing fore side bearing block positioner: because the disturbance plate of fore side bearing block gudgeon both sides is an arc; Arc is the line contact with contacting of limited block groove two side; Not only arc is easy to wear, has influenced the effect of the disturbance distortion of bearing block being carried out flexible constraint; And the variation of the gap between bearing block gudgeon and the limited block groove greatly, causes upper and lower roll mandrel still relatively more serious to shift phenomenon, reduced the integral rigidity of milling train, influenced rolling accuracy; And bearing block because of the arc disturbance plate produced to scratch angle smaller, it is poor that bearing block adapts to the disturbance ability of roll-force, the bearing block stress is unstable, has influenced the service life of bearing; Again because with the trunnion design of trunnion design midway, bottom roll bearing block of fore side topping roll bearing block crown center position in its pedestal both sides in the bottom of its pedestal both sides; The vertical all-moving surface design of upper and lower roll chock is in each bearing block protuberance both sides; Receive the restriction of bearing block protuberance height; Vertical amount of movement between the upper and lower roll chock is smaller, causes upper and lower roll gap adjusting range smaller, and the range of application of milling train is affected.The 3rd, because that the two side of groove is is fixed, the dismounting of gudgeon disturbance plate, adjustment are inconvenient.
The deficiency of existing roll-separating mechanism: because in the operation of rolling, roll gap constantly changes, rolling mill vibration is big; The piston rod telescopic moving adjustment of balancing component is frequent; Its elastic colloid fatiguability or hydraulic cylinder easy oil leakage cause the thread meshing backlass between pull bar and the adjusting nut normally to eliminate, and have increased the spring amount of roll; Influence rolling accuracy, also influenced the service life of balancing component.Again because in the operation of rolling, when the milling train opening degree more hour, the decrement of its balancing component piston rod is big more; The equilibrant force of its balancing component is big more; Pressure between pull bar and the adjusting nut is also big more, and it is also big more to eliminate the required driving torque of this pressure, not enough " pressing motionless " phenomenon of actuator drives ability of roll-separating mechanism often occurs; That is: pull bar can't normally rotate, and upper and lower roll can't online normal move up and down.The 3rd, because balancing component passes limited block, be installed between the upper and lower roll chock externally, poor working environment, installing space is little, dismounting, maintenance inconvenience.
The deficiency of existing sealing mechanism: owing to only have the sealing of plough groove type O shape ring; In the disassembly process and the operation of rolling, because of impacting, foreign material such as iron scale, water make the O-ring seals distortion fast, and sealing reliability reduces; Cause adjusting nut and limited block place jam phenomenon more serious; Pull bar can't normally rotate in bearing block and/or in the limited block, has reduced the integral rigidity of milling train, has influenced rolling accuracy.Influence the performance of milling train.
The utility model content
The purpose of the utility model provides the short stress path rolling mill that a kind of milling train integral rigidity is big, rolling accuracy is high.
The utility model short stress path rolling mill comprises roller system, roll anti-channeling actuation mechanism, roll-separating mechanism and sealing mechanism.Wherein: the interior disturbance plate of the fore side bearing block positioner of said roll anti-channeling actuation mechanism constitutes by being inlaid in inboard interior concave spherical surface slide block of gudgeon and the internal convex sphere slide block that cooperates with its sphere, and said internal convex sphere slide block is connected with gudgeon with interior concave spherical surface slide block through the gudgeon bolt; Its outer disturbance plate is made up of evagination sphere slide block that is inlaid in the said gudgeon outside and the outer concave spherical surface slide block that cooperates with its sphere, and said outer concave spherical surface slide block is connected with gudgeon with evagination sphere slide block through the gudgeon bolt; Disturbance plate is identical with the radius of curvature of outer disturbance plate sphere in said, and its centre of sphere is positioned on the joining of fore side bearing block center line BB and gudgeon bolt central axis C C.
Described roll-separating mechanism comprises pull bar, be installed in upper and lower ball ring on the said pull bar, be positioned at the upper and lower adjusting nut with internal and external screw thread of upper and lower two ball ring outer ends and be positioned at the upper and lower locking nut and the upper and lower balancing component of upper and lower two adjusting nut outer ends.The sphere of said upper and lower two ball rings is oppositely arranged; Said upper and lower locking nut links together with upper and lower adjusting nut respectively through upper and lower alignment pin, between upper locking nut and the adjusted nut, have the gap between lower locking nut and the following adjusting nut.
Said sealing mechanism comprises that four O-ring seals on the pull bar that is sleeved on said roll-separating mechanism, four glands and two are installed in the upper and lower casing at bearing block connecting plate two ends of the limited block of said roll anti-channeling actuation mechanism respectively between the upper and lower ball ring of said roll-separating mechanism.Two in said four glands are connected with said housing respectively, and two glands are connected with said upper and lower roll chock respectively in addition; Two in said four O-ring seals lay respectively on the said upper and lower casing, and in addition two are separately positioned on and are positioned at topping roll bearing block lower end and bottom roll bearing block upper end; In the upper and lower gland of said housing, labyrinth ring or dust ring are set respectively.
The utility model short stress path rolling mill; Wherein: the groove of said fore side limited block is offset to a side of upper and lower lead; This groove is made up of upper and lower lead with right angle breach and the movable side wall that is positioned at right angle breach end; The biasing of the bearing block gudgeon of said fore side bearing block positioner is oppositely arranged with the groove of limited block.
The utility model short stress path rolling mill, wherein: on said upper and lower right angle breach sidewall, pad is set, said upper and lower lead respectively and the adjustment pad is set between the upper and lower movable side wall.
The utility model short stress path rolling mill, wherein: the adjacent of ball ring and said topping roll bearing block is provided with the ball ring alignment pin on said, at the adjacent of said lower peripheral surface pad and said bottom roll bearing block lower peripheral surface pad alignment pin is set.
The utility model short stress path rolling mill, wherein: the said balancing component of going up is damping element or spring with following balancing component.Said damping element is the combined type butterfly damping element that is nested with on said pull bar, and said spring is spiral spring or dish spring, is nested with on said pull bar or is centered around said pull bar outer rim by 2～4 to become the box-like arrangement of array group.
The utility model short stress path rolling mill, wherein: between the labyrinth ring of said housing and O RunddichtringO, dust ring is installed also; Labyrinth ring or dust ring are set respectively in the gland of said upper and lower roll chock, between this labyrinth ring and O RunddichtringO, dust ring are installed.
The utility model short stress path rolling mill, wherein: said labyrinth ring is two plough groove type labyrinth rings, and said dust ring is a Z type dust ring, and is nested with the sealing of compensation O shape ring in the shoulder outside of said pair of plough groove type labyrinth ring and/or said Z type dust ring.
The utility model short stress path rolling mill, wherein: the interior ring place at said O-ring seals is provided with the wear ring that stacks together with it.
The described short stress path rolling mill of the utility model has the following advantages and effect:
1, the inside and outside disturbance plate of the described milling train fore side of the utility model bearing block gudgeon all is designed to by having the concave spherical surface slide block and equipped having a protruding sphere slide block structure with it; The disturbance angle that is produced under roll-force according to bearing block simultaneously; The protruding sphere slide block of interior disturbance plate links together through gudgeon bolt and its concave spherical surface slide block, and the concave spherical surface slide block of outer disturbance plate links together through gudgeon bolt sphere slide block protruding with it, that is: when the generation of fore side bearing block adaptation roll-force is scratched; Bearing block gudgeon band the interior concave spherical surface slide block and the evagination sphere slide block of its both sides and is scratched together; Should rotate certain spherical angle with its equipped internal convex sphere slide block with outer concave spherical surface slide block locking phase, the effect of the flexible constraint that has not only guaranteed the adaptation disturbance of fore side bearing block to be carried out when rolling contacts for face between protruding sphere slide block of while and the concave spherical surface slide block; Wearability is good; Gap between bearing block gudgeon and the limited block groove changes very little, has effectively suppressed the skew to axial of upper and lower roll, has improved the axial rigidity of milling train; Keep upper and lower roll to have advantages of higher stability, satisfied the requirement of rolling accuracy; And the bearing block adaptation scope of scratching that roll-force produced is bigger, adaptation is effective, and bearing block is stressed good, has prolonged the service life of bearing.
With the location bias of fore side limited block groove, near the end of upper and lower lead, that is: fore side limited block groove is laid a good foundation for realizing grooveless rolling towards the outside or the inboard biasing of bearing block.
Location bias with the upper and lower roll chock gudgeon of fore side; The gudgeon of this biasing and the groove of limited block are oppositely arranged; The two sides of fore side bearing block pedestal can be as the vertical all-moving surface of fore side bearing block; That is: both led to the upper and lower roll chock pedestal of fore side is vertically mobile in the end of the offset groove of the upper and lower lead of fore side limited block; Again to vertical mobile constraint of the upper and lower roll chock pedestal of fore side, control the opening degree of milling train simultaneously; The two sides of corresponding therewith transmission side bearing block pedestal also can be as the vertical all-moving surface of transmission side bearing block; Because of the height of bearing block pedestal height greater than the bearing block protuberance; Increased the vertical amount of movement of upper and lower roll chock; Enlarged the adjusting range of upper and lower roll gap, for realizing that grooveless rolling provides guarantee.
The limited block groove of plug-in mounting gudgeon is made up of lead with right angle breach and the movable side wall that is positioned at the right angle breach; On right angle breach sidewall, pad is set, the adjustment pad is set between lead and movable side wall, that is: according to the actual state of gudgeon disturbance plate; Through increasing or reduce shim pack; Roll axial dipole field had both been controlled in gap between adjustment groove two side and the bearing block gudgeon, the effect of the adaptation disturbance flexible constraint of fore side bearing block when further assurance is rolling again; Satisfied the axial rigidity of milling train and the requirement of rolling accuracy, bearing block gudgeon disturbance plate installs, adjusts more convenient simultaneously.
2, designed upper and lower locking nut at interval at the upper and lower adjusting nut place of roll-separating mechanism; Active force E between locking nut and the pull bar and the directed force F equal and opposite in direction between adjusting nut and the pull bar, in the opposite direction; That is: the directed force F that can be conditioned between nut and the pull bar of the active force E between locking nut and the pull bar is offset; Make pull bar only bear more stable roll-force; The transmission device that guarantees roll-separating mechanism can driven, and upper and lower roll can online normal move up and down.
Balancing component is that last balancing component is with following balancing component and near pull bar; That is: go up the balancing component design at the upper locking nut place; Following balancing component design is at the lower locking nut place; Balancing component is selected damping element or spring for use, and sets the equilibrant force of balancing component according to the required pretension equilibrant force of roller system of rolling mill weight, eliminates the thread pitch between pull bar and the adjusting nut; When the milling train opening degree changed, under the acting in conjunction of adjusting nut, locking nut and shock absorber or spring, equilibrant force was stable; Realized the both weight of balance roller system of pull bar; Pull bar again in upper and lower roll chock steadily rotation drive that upper and lower roll is steadily vertical to be moved, balancing component is also eliminated the thread pitch between pull bar and the adjusting nut, what make that milling train embodies in the whole operation of rolling all is the intrinsic rigidity of roller system itself; Reduced roll spring amount; Realized steady rollingly, the radial rigidity and the rolling accuracy of milling train are improved, for the range of application that enlarges the utility model short stress path rolling mill is laid a good foundation.
Above-mentioned balancing component design is in the enclosed cavity of upper and lower roll chock, and the working environment of balancing component is improved, and has prolonged service life, adjustment, easy to maintenance.Simultaneously, there is no need to reserve the position of balancing component on the limited block, discharged the space of limited block, improved the strength and stiffness of limited block.
Also designed upper and lower ball ring alignment pin respectively at the ball ring of upper and lower adjusting nut and the adjacent of bearing block; The ball ring alignment pin can guarantee the globality of ball ring and bearing block; Not only make bearing block, adjusting nut force-bearing situation more stable, and ball ring contacts better effects if with the sphere of adjusting nut, it is more flexible to make bearing block when rolling adapt to the angle of the required adjustment of roll-force; Further improve the radial rigidity and the rolling accuracy of milling train, also prolonged the service life of bearing.
3, the Seal Design with the joint of pull bar and bearing block and pull bar and limited block is O RunddichtringO and the combination of labyrinth ring two seals; Gland provides preload pressure; The lip of labyrinth ring can be adjacent on the pull bar sealing surface; Prevent that big iron from cutting, dust gets into pull bar, the sealed environment of O RunddichtringO is improved, improve the sealing reliability of O-ring seals.
Between above-mentioned labyrinth ring and gland, designed dust ring again; Form O RunddichtringO and dust ring, the multiple-sealed combination of labyrinth ring, gland provides preload pressure, and labyrinth ring plays main sealing; Prevent that big iron from cutting, dust gets into pull bar, the sealed environment of O-ring seals is further improved; Simultaneously, dust ring and O RunddichtringO play auxiliary seal jointly, further prevent the entering pull bar of other foreign material such as iron scale, water; Seal style is reasonable, has guaranteed that pull bar normally rotates, and has improved the radial rigidity and the rolling accuracy of milling train.
Labyrinth ring also is designed to two plough groove type labyrinth rings, and in seal process, not only foreign material defence line increases, and its groove can store grease again, plays lubricant effect, has improved the service efficiency of labyrinth ring.
The groove lip of two plough groove type labyrinth rings is designed to tilt to its center of circle; In seal process, not only the grease memory space is bigger for the tilting groove, and the end of tilting groove lip can be adjacent on the pull bar sealing surface again; Reduce the accumulation of foreign material in seals at; Also when pull bar rotated, grease had the rotation lubrication to pull bar, and the working environment of dust ring and O RunddichtringO is further improved.
Also designed the sealing of compensation O shape ring in the shoulder outside of two plough groove type labyrinth rings and/or dust ring; The sealing of this compensation O shape ring provides preload pressure; The lip end that guarantees labyrinth ring and/or dust ring can be adjacent to better on the pull bar sealing surface; Strengthen the intensity of multiple tracks foreign material defence line, sealing effectiveness integral body is better; The sealing of compensation O shape ring does not directly contact with foreign material with pull bar, and the life-span is long.In addition, on the basis of above-mentioned design, designed the wear ring that stacks together with it again at the interior ring place of O RunddichtringO; Because of wear ring has good wearability, the O RunddichtringO then encloses by way of compensation, to wear ring preload pressure is provided; The lip end of wear ring can be adjacent on sealing surface; Guarantee combining closely of wear ring and pull bar, seal style is more reasonable, the sealing effectiveness total optimization; O-ring seals does not directly contact with foreign material with pull bar, and prolong service life,
In a word, the described short stress path rolling mill of the utility model has that roll spring is smaller, the axial dipole field amplitude is smaller and the more rational characteristics of integral sealing pattern, rolling steadily, the integral rigidity of milling train and rolling accuracy height help expanding product specification.The type advantage is outstanding, and the market competitiveness is strong.
Description of drawings
Fig. 1 is the described short stress path rolling mill perspective view of the utility model;
Fig. 2 is that the roller of milling train shown in Figure 1 is an amplification plan view;
Fig. 3 is limited block in the prior art, gudgeon, disturbance plate and balance component structure, scheme of installation;
Fig. 4 is the inside and outside disturbance plate structure of fore side bearing block gudgeon, a scheme of installation among Fig. 2;
Fig. 5 is a limited block perspective view among Fig. 2;
Fig. 6 is Fig. 2 bottom bracket structural representation;
Fig. 7 is Fig. 6 left view;
Fig. 8 is the roll-separating mechanism structural representation of milling train shown in Figure 1;
To be that the M part is local in the left view of Fig. 8 amplify Fig. 9;
Figure 10 is a roll-separating mechanism stress sketch map;
Figure 11 is that balancing component is nested with layout and the stress sketch map on pull bar;
Figure 12 is that balancing component is centered around layout and the stress sketch map that the pull bar outer rim becomes the box-like arrangement of array group;
Figure 13 is the sealing mechanism structural representation of milling train shown in Figure 1.
Wherein: 1 roll-separating mechanism, 2 rollers system, 3 lead a mechanism, 4 supports, 5 anti-channeling actuation mechanism, 6 topping roll bearing blocks, 7 bottom roll bearing blocks; 8 pull bars, 9 limited blocks, 10 pads, 11 internal convex sphere slide blocks, 12 interior concave spherical surface slide blocks, 13 adjustment pads, 14 movable side wall; 15 bolts, 16 evagination sphere slide blocks, 17 outer concave spherical surface slide blocks, 18 bearing block gudgeons, 19 gudgeon bolts, 20 bearing block pedestal sides, 21 pull bar installing holes; The vertical all-moving surface of lead on 22, lead on 23,24 upper and lower right angle breach sidewalls, 25 right angle breach ends, 26 times leads, 27 times vertical all-moving surfaces of lead, 28 bearing block connecting plates; 29 pass through lid, balancing component on 30,31 upper locking nuts, 32 adjusted nuts, ball ring on 33,34 lower peripheral surface pad alignment pins, 35 times adjusting nuts; 36 lower locking nuts, 37 times balancing components, 38 end caps, 39 lower peripheral surface pads, ball ring alignment pin on 40,41 wear rings, 42O shape sealing ring; 43 dust rings, 44 compensation O shape ring sealings, 45 labyrinth rings, 46 glands, 47 housings, 48 upper and lower alignment pins; 49 rack pins, 50 grooves, 51 interior disturbance plate, 52 outer disturbance plate, 53 balancing component installing holes, 54 balancing components.
The AA rolling centerline, BB fore side bearing block center line, CC gudgeon bolt central axis; C covers 29 or the active force of end cap 38 thoroughly, the active force of D upper locking nut 31 or lower locking nut 36, the active force of E upper locking nut 31 or lower locking nut 36; The active force of F adjusted nut 32 or following adjusting nut 35; The P roll-force, the active force of Z pad 10, the active force of X movable side wall 14.
The specific embodiment
Be described further below in conjunction with the specific embodiment of accompanying drawing the described short stress path rolling mill of the utility model.
Referring to Fig. 1, Fig. 2, the described short stress path rolling mill of the utility model comprises that roller is 2, roll anti-channeling actuation mechanism 5, roll-separating mechanism 1, sealing mechanism, leads a mechanism 3 and support 4.
Said roller is 2 to comprise upper and lower roll and be positioned at topping roll bearing block 6, bottom roll bearing block 7 and the bearing at upper and lower roll two ends.
The roll anti-channeling actuation mechanism 5 of prior art comprises support 4 and is installed on the support 4, with roller be 2 equipped limited block 9 and the fore side bearing block positioner in upper and lower roll chock 6,7 both sides.Referring to Fig. 3; Said limited block comprises the bearing block connecting plate 28 with pull bar installing hole 21 and balancing component installing hole 53; Said pull bar installing hole 21 is used to install the pull bar 8 of roll-separating mechanism; Said balancing component installing hole 53 is used to install the balancing component 54 of roll-separating mechanism 1, lead 23 and following lead 26 on having respectively on two opposite faces of bearing block connecting plate 28; Said fore side bearing block positioner comprises that the last lead 23 of fore side limited block 9 has groove with following lead 26; This groove 50 is positioned at the centre position of upper and lower lead 23,26; Be inserted into the fore side bearing block gudgeon 18 in the said groove and be installed in the interior disturbance plate 51 and outer disturbance plate 52 of said gudgeon both sides, interior disturbance plate 51 and outer disturbance plate 52 are arc.
Referring to Fig. 4; The interior disturbance plate 51 of the fore side bearing block positioner of the described roll anti-channeling of the utility model actuation mechanism 5 constitutes by the concave spherical surface slide block 12 that is inlaid in said gudgeon 18 inboards with the equipped protruding sphere slide block 11 of its sphere, and outer disturbance plate 52 constitutes by the protruding sphere slide block 16 that is inlaid in said gudgeon 18 outsides with the equipped concave spherical surface slide block 17 of its sphere.Said internal convex sphere slide block 11 is connected with gudgeon 18 with interior concave spherical surface slide block 12 through gudgeon bolt 19; Said outer concave spherical surface slide block 17 is connected with gudgeon 18 with evagination sphere slide block 16 through gudgeon bolt 19; Interior concave spherical surface slide block 12 relative internal convex sphere slide blocks 11 are made spherical rotation, and the external mutually concave spherical surface slide block 17 of evagination sphere slide block 16 is made spherical rotation.Disturbance plate 51 is identical with the sphere curvature radius of outer disturbance plate 52 in said, and its centre of sphere is positioned on the joining of fore side bearing block center line BB and gudgeon bolt 19 central axis C C.Like this, for face contacts, improved the wearability of disturbance plate between above-mentioned protruding sphere slide block and the concave spherical surface slide block, the gap between bearing block gudgeon and the limited block groove also is able to guarantee, can prevents the skew to axial of upper and lower roll to a greater degree.
Referring to Fig. 5, the groove of said fore side limited block 9 is offset to a side of upper and lower lead 23,26, can also can lay a good foundation for realizing grooveless rolling towards the inboard biasing of bearing block towards the outside biasing of bearing block.This groove 50 is made up of upper and lower lead with right angle breach 23,26 and the movable side wall 14 that is positioned at right angle breach end 25; Movable side wall 14 is fixed on the upper and lower lead 23,26 through bolt 15, constitutes the groove equipped mutually with aforesaid operations side shaft holder gudgeon 18.Like this; When fore side bearing block gudgeon 18 is inserted into the groove of above-mentioned limited block 9; The right angle breach sidewall 24 of groove 50 not only carries out flexible constraint to the rigidity disturbance that fore side bearing block gudgeon 18 adapts to roll-force with movable side wall 14, and bearing block gudgeon 18 disturbance plate installation, easy to adjust.
For the convenient gap of regulating between groove 50 and the gudgeon 18, on said upper and lower right angle breach sidewall 24, pad 10 is set, said upper and lower lead 23,26 is respectively and be provided with between the upper and lower movable side wall 14 and adjust pad 13.It is all very convenient with adjustment that so design makes the inside and outside disturbance plate dismounting of fore side bearing block gudgeon.Interstice coverage between right angle breach sidewall 24, movable side wall 14 and the gudgeon disturbance plate is set in 0.025mm～0.05mm respectively.
Referring to Fig. 6, bearing block gudgeon 18 biasings of said fore side bearing block positioner, the gudgeon 18 of this biasing is oppositely arranged with the groove 50 of limited block 9.Like this; Upper and lower lead 23, the 26 vertical all-moving surfaces of the fore side of limited block 22,27 ends at the right angle of said groove breach; The upper and lower roll chock of fore side 6,7 pedestal sides 20 are equipped mutually with the vertical all-moving surface 22,27 of the breach end, right angle of the offset groove 50 of upper and lower lead 23,26 respectively; The two sides 20 of fore side bearing block pedestal can be as the vertical all-moving surface of fore side bearing block; As shown in Figure 7, the two sides of corresponding therewith transmission side bearing block pedestal also can be as the vertical all-moving surface of transmission side bearing block, that is: said roller is the both sides that the vertical all-moving surface of 2 upper and lower roll chock 6,7 all is positioned at each bearing block pedestal; Can increase the opening degree of milling train, for realizing that grooveless rolling provides guarantee.
Certainly; The bearing block positioner of the said roll anti-channeling of above-mentioned the utility model actuation mechanism 5 also can be arranged on the transmission side bearing block; Or the bearing block positioner is arranged on fore side, the transmission side bearing block simultaneously; Skew to axial to upper and lower roll suppresses, and increases the opening degree of milling train, and disturbance plate installation, easy to adjust.
Referring to Fig. 8, described roll-separating mechanism 1 is installed on the upper and lower roll chock 6,7 of fore side and transmission side, in order to regulate the centre distance between the upper and lower roll.The described roll-separating mechanism 1 of the utility model comprises pull bar 8, be installed in upper and lower ball ring 33,39 on the said pull bar 8, be positioned at the upper and lower adjusting nut with internal and external screw thread 32,35 of upper and lower two ball rings 33,39 outer ends and be positioned at the upper and lower locking nut 31,36 and the upper and lower balancing component 30,37 of upper and lower two adjusting nuts 32,35 outer ends.The sphere of said upper and lower two ball rings 33,39 is oppositely arranged; Said upper and lower locking nut 31,36 links together with upper and lower adjusting nut 32,35 respectively through upper and lower alignment pin 48, between upper locking nut 31 and the adjusted nut 32, have the gap between lower locking nut 36 and the following adjusting nut 35.As shown in Figure 9.
In addition, adjusted nut 32 is locked with external rack pins 49 or straight pin respectively with following adjusting nut 35, is used to prevent that adjusted nut 32, following adjusting nut 35 from rotating along with the rotation of pull bar 8, and is as shown in Figure 9.
Like this; Say from the integral status of roller system: the thread meshing backlass of adjusting nut and pull bar is eliminated through balancing component on the one hand; Active force E equal and opposite in direction between directed force F between adjusted nut 32 and the pull bar 8 and upper locking nut 31 and the pull bar 8, in the opposite direction on the other hand; And active force E and the directed force F equal and opposite in direction between following adjusting nut 35 and the pull bar 8, in the opposite direction between lower locking nut 36 and the pull bar 8; That is: the directed force F that can be conditioned between nut and the pull bar of the active force E between locking nut and the pull bar is offset; Thereby 8 on every pull bar in the roll-separating mechanism 1 bears more stable roll-force P, and is shown in figure 10.Simultaneously; When the milling train opening degree changes; The actuator drives pull bar 8 of said roll-separating mechanism, because of pull bar 8 is that internal thread is connected with adjusted nut 32, following adjusting nut 35, adjusted nut 32, following adjusting nut 35 are become one through its external screw thread, rack pins 49 with topping roll bearing block 6, bottom roll bearing block 7; When so pull bar 8 rotates in the pull bar installing hole 21 of adjusted nut 32, limited block 9 and following adjusting nut 35; Upper and lower adjusting nut the 32, the 35th does not rotate, only do vertical direction and move, thereby pull bar 8 respectively transmission topping roll bearing block 6 move with respect to mill stand 4 vertical upper and lower symmetries together with bottom roll bearing block 7; Upper and lower roll chock drives topping roll 1, the vertical thereupon upper and lower symmetry of bottom roll 19 moves, and regulates the centre distance between topping roll and the bottom roll.
For guaranteeing the globality of ball ring and bearing block; Ball ring contacts better effects if with the sphere of upper and lower adjusting nut 32,35; The scope of activities of restriction ball ring; Ball ring 33 is provided with ball ring alignment pin 40 with the adjacent of said topping roll bearing block 6 on said, at the adjacent of said lower peripheral surface pad 39 and said bottom roll bearing block 7 lower peripheral surface pad alignment pin 34 is set, and will go up ball ring 33 through alignment pin and become one with topping roll bearing block 6, lower peripheral surface pad 39 with bottom roll bearing block 7.
The said balancing component 30 of going up is damping element or spring with following balancing component 37.Said damping element is a combined type butterfly damping element, and this combined type butterfly damping element is nested with on pull bar 8, and is shown in figure 11.Said spring is a spiral spring, and this spiral spring can be to be nested with on pull bar 8; Also can be centered around pull bar 8 outer rims and become the box-like arrangement of array group by 2～4, shown in figure 12; Said spring also can be the dish spring, is centered around the pull bar outer rim by 2～4 and becomes the box-like arrangement of array group.Like this, balancing component can the balance topping roll and the gravity of bottom roll, and balancing component does not change in the enclosed cavity of upper and lower roll chock 6,7, that is: the equilibrant force of balancing component is constant.
Referring to Figure 13; The described sealing mechanism of the utility model is positioned at the upper and lower ball ring 33 of said roll-separating mechanism; Between 39; Comprise four O-ring seals 42 on the pull bar 8 that is sleeved on said roll-separating mechanism 1, four glands 46 and two housings 47, said two housings 47 are installed in the upper/lower terminal of bearing block connecting plate 28 of limited block 9 of said roll anti-channeling actuation mechanism 5; Two in said four glands 46 are connected with said housing 47 through bolt respectively, and said housing 47 is connected with said limited block 9 through bolt; Two glands 46 are connected with said upper and lower roll chock 6,7 respectively in addition; Two in said four O-ring seals 42 lay respectively on the said upper and lower casing 47, and in addition two are separately positioned on and are positioned at topping roll bearing block 6 lower ends and bottom roll bearing block 7 upper ends; In the upper and lower gland 46 of said housing 47, labyrinth ring 45 or dust ring 43 can be set respectively; When only labyrinth ring 45 being set, between labyrinth ring 45 and O RunddichtringO 42, dust ring 43 can also be installed.Equally, in the upper and lower gland 46 of said upper and lower roll chock 6,7, also labyrinth ring 45 or dust ring 43 can be set respectively; When only labyrinth ring 45 being set, between labyrinth ring 45 and O RunddichtringO 42, dust ring 43 can also be installed.Like this; Sealing mechanism has formed multiple-sealed combination at the upper/lower terminal joint of pull bar 8 and the bearing block connecting plate 28 of upper and lower roll chock 6,7, limited block 9 respectively; Wherein: labyrinth ring plays main sealing; Prevent that big iron from cutting, dust gets into pull bar, the sealed environment of O-ring seals is further improved; Dust ring 43 plays auxiliary seals jointly with O RunddichtringO 42, further prevents the entering pull bar of other foreign material such as iron scale, water; Seal style is reasonable.
Said dust ring 43 is a Z type dust ring.Said labyrinth ring 45 is two plough groove type labyrinth rings, and the groove lip of this pair plough groove type labyrinth ring tilts to its center of circle, and its angle of inclination is 30 °～70 °.Like this; It is bigger that the tilting groove not only stores the grease space; The end of tilting groove lip can be adjacent on the pull bar wall again, reduces the accumulation of foreign material in seals at, also when pull bar 8 rotations; The grease that is stored plays lubrication again to pull bar, and the working environment of dust ring 43 and O RunddichtringO 42 is further improved.
Said sealing mechanism can also be nested with compensation O shape ring sealing 44 in the shoulder outside of said pair of plough groove type labyrinth ring 45 and/or Z type dust ring 43.Like this, the sealing of compensation O shape ring provides preload pressure, guarantees that the lip end of labyrinth ring 45 and dust ring 43 can be adjacent to better on pull bar 8 walls, and sealing effectiveness integral body is better.On the basis of above-mentioned Seal Design, said sealing mechanism can be provided with wear ring 41 at the interior ring place of said O-ring seals 42 again, and this wear ring 41 stacks together with said O-ring seals 42.Like this, the wearability of wear ring is good, and the O RunddichtringO then encloses by way of compensation; To wear ring preload pressure is provided, the lip end of wear ring can be adjacent on pull bar 8 walls, guarantees combining closely of wear ring 41 and pull bar 8; Seal style is more reasonable, the sealing effectiveness total optimization.
After above-mentioned roll-separating mechanism and sealing mechanism installation; Be equipped with at 30 places of balancing component on the roll-separating mechanism to be fixed on and cover 29 thoroughly on the topping roll bearing block 6; Cover 29 pairs of last balancing components 30 thoroughly and carry out the pretension location; Following balancing component 37 places at roll-separating mechanism are equipped with the end cap 38 that is fixed on the bottom roll bearing block 7, and 38 pairs of following balancing components 37 of end cap carry out the pretension location.
When rolling; Rod wire rod or ribbon steel blank are along rolling centerline AA, be rolled by upper and lower roll through leading a mechanism 3; Wherein: built-in ground balancing component 30 bears respectively and covers 29 the pretension active force C and the reaction force D of upper locking nut 31; Every pull bar 8 bears the directed force F of the active force E and the adjusted nut 32 of upper locking nut 31 respectively, and is shown in figure 10; In like manner, built-in underground balancing element 37 bears the pretension active force C of end cap 38 and the active force D of lower locking nut 36 respectively, and every pull bar 8 bears the directed force F of active force E He the following adjusting nut 35 of lower locking nut 36 respectively.Simultaneously, the disturbance plate of fore side bearing block gudgeon 18 is born the active force X of active force Z and its movable side wall 14 of right angle breach sidewall 24 Intermediate gaskets 10 of limited block 9 grooves respectively, and is as shown in Figure 4.
When the milling train opening degree changes; Built-in balanced element provides certain equilibrant force under compressive state; The weight of balance roller system is eliminated the thread pitch between pull bar 8 and the adjusting nut, reasonably hermetically-sealed construction; Guarantee pull bar 8 normally rotation in the pull bar installing hole 21 of topping roll bearing block 6, limited block 9 and bottom roll bearing block 7, the radial rigidity of milling train is high; Disturbance plate makes the fore side bearing block adapt to the effective of roll-force with outer disturbance plate in spherical, and the axial rigidity of milling train is high; That is: the utility model short stress path rolling mill has been realized steady rollingly, and the milling train integral rigidity is big, and rolling accuracy is high, applied range.
In addition, the biasing of the gudgeon of the upper and lower roll chock 6,7 of fore side is laid a good foundation for realizing grooveless rolling; The last lead with offset groove 50 23 of fore side limited block 9 and the moving range of the upper and lower roll chock of following lead 26 restriction operation sides 6,7 pedestal two sides; The moving range of lead 23 on the transmission side limited block 9 and the upper and lower roll chock of following lead 26 restriction transmission sides 6,7 pedestal two sides; Milling train opening degree adjusting range is bigger, for realizing that grooveless rolling provides guarantee.
Claims (9)
1. a short stress path rolling mill comprises roller system (2), roll anti-channeling actuation mechanism (5), roll-separating mechanism (1) and sealing mechanism; It is characterized in that:
The interior disturbance plate (51) of the fore side bearing block positioner of said roll anti-channeling actuation mechanism (5) is made up of the internal convex sphere slide block (11) that is inlaid in the inboard interior concave spherical surface slide block (12) of gudgeon (18) and cooperate with its sphere; Said internal convex sphere slide block (11) is connected with gudgeon (18) with interior concave spherical surface slide block (12) through gudgeon bolt (19); Its outer disturbance plate (52) is by evagination sphere slide block (16) that is inlaid in said gudgeon (18) outside and outer concave spherical surface slide block (17) formation that cooperates with its sphere; Said outer concave spherical surface slide block (17) is connected with gudgeon (18) with evagination sphere slide block (16) through gudgeon bolt (19); Disturbance plate is identical with the radius of curvature of outer disturbance plate sphere in said, and its centre of sphere is positioned on the joining of fore side bearing block center line (BB) and gudgeon bolt (19) central axis (CC);
Said roll-separating mechanism (1) comprises pull bar (8), be installed in upper and lower ball ring (33,39) on the said pull bar (8), be positioned at the upper and lower adjusting nut with internal and external screw thread (32,35) of upper and lower two ball rings (33,39) outer end and be positioned at the upper and lower locking nut (31,36) and the upper and lower balancing component (30,37) of upper and lower two adjusting nuts (32,35) outer end; The sphere of said upper and lower two ball rings (33,39) is oppositely arranged; Said upper and lower locking nut (31,36) links together with upper and lower adjusting nut (32,35) respectively through upper and lower alignment pin (48), between upper locking nut (31) and the adjusted nut (32), have the gap between lower locking nut (36) and the following adjusting nut (35);
Said sealing mechanism is positioned at the upper and lower ball ring (33 of said roll-separating mechanism; 39) between; Comprise that four O-ring seals (42) on the pull bar (8) that is sleeved on said roll-separating mechanism (1), four glands (46) and two are installed in the upper and lower casing (47) at bearing block connecting plate (28) two ends of the limited block (9) of said roll anti-channeling actuation mechanism (5) respectively; Two in said four glands (46) are connected with said housing (47) respectively; Two glands (46) are connected with said upper and lower roll chock (6,7) respectively in addition; Two in said four O-ring seals (42) lay respectively on the said upper and lower casing (47), and in addition two are separately positioned on and are positioned at topping roll bearing block (6) lower end and bottom roll bearing block (7) upper end, and labyrinth ring (45) or dust ring (43) are set respectively in the upper and lower gland (46) of said housing (47).
2. short stress path rolling mill according to claim 1; It is characterized in that: the groove of said fore side limited block (9) is offset to a side of upper and lower lead (23,26); This groove is made up of upper and lower lead with right angle breach (23,26) and the movable side wall (14) that is positioned at right angle breach end (25); The biasing of the bearing block gudgeon (18) of said fore side bearing block positioner is oppositely arranged with the groove of limited block (9).
3. short stress path rolling mill according to claim 2 is characterized in that: pad (10) is set on said upper and lower right angle breach sidewall (24), said upper and lower lead (23,26) respectively and be provided with between the upper and lower movable side wall (14) adjustment pad (13).
4. according to any described short stress path rolling mill among the claim 1-3; It is characterized in that: ball ring (33) is provided with ball ring alignment pin (40) with the adjacent of said topping roll bearing block (6) on said, at the adjacent of said lower peripheral surface pad (39) and said bottom roll bearing block (7) lower peripheral surface pad alignment pin (34) is set.
5. according to any described short stress path rolling mill among the claim 1-3; It is characterized in that: said upward balancing component (30) and following balancing component (37) are damping element or spring; Said damping element is for being nested with the combined type butterfly damping element on said pull bar (8); Said spring is spiral spring or dish spring, is nested with on said pull bar (8) or is centered around said pull bar (8) outer rim by 2～4 to become the box-like arrangement of array group.
6. short stress path rolling mill according to claim 4; It is characterized in that: said upward balancing component (30) and following balancing component (37) are damping element or spring; Said damping element is for being nested with the combined type butterfly damping element on said pull bar (8); Said spring is spiral spring or dish spring, is nested with on said pull bar (8) or is centered around said pull bar (8) outer rim by 2～4 to become the box-like arrangement of array group.
7. short stress path rolling mill according to claim 6 is characterized in that: between the labyrinth ring (45) of said housing (47) and O RunddichtringO (42), dust ring (43) is installed also; Labyrinth ring (45) or dust ring (43) are set respectively in the gland (46) of said upper and lower roll chock (6,7), between this labyrinth ring (45) and O RunddichtringO (42), dust ring (43) are installed.
8. short stress path rolling mill according to claim 7; It is characterized in that: said labyrinth ring (45) is two plough groove type labyrinth rings; Said dust ring (43) is a Z type dust ring, and is nested with compensation O shape ring sealing (44) in the shoulder outside of said pair of plough groove type labyrinth ring and/or said Z type dust ring (43).
9. short stress path rolling mill according to claim 8 is characterized in that: the interior ring place at said O-ring seals (42) is provided with the wear ring (41) that stacks together with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202239517U CN202185452U (en) | 2011-06-29 | 2011-06-29 | Short stress path rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202239517U CN202185452U (en) | 2011-06-29 | 2011-06-29 | Short stress path rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202185452U true CN202185452U (en) | 2012-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202239517U Withdrawn - After Issue CN202185452U (en) | 2011-06-29 | 2011-06-29 | Short stress path rolling mill |
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| Country | Link |
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| CN (1) | CN202185452U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102247984A (en) * | 2011-06-29 | 2011-11-23 | 北京京诚瑞信长材工程技术有限公司 | Short-stress wire rolling mill |
| CN103586287A (en) * | 2013-11-15 | 2014-02-19 | 江阴大地装备股份有限公司 | Pull rod type rolling mill |
| CN103978041A (en) * | 2014-05-21 | 2014-08-13 | 中冶南方工程技术有限公司 | High-rigidity short stress path rolling mill |
| CN105414195A (en) * | 2015-12-18 | 2016-03-23 | 重庆麦拓科技有限公司 | Short-stress line mill |
| CN105458013A (en) * | 2015-12-19 | 2016-04-06 | 重庆麦拓科技有限公司 | Rolling mill slide |
| CN107052058A (en) * | 2017-03-01 | 2017-08-18 | 中冶华天南京工程技术有限公司 | Axial pretightening pull rod device |
| CN107138534A (en) * | 2017-06-30 | 2017-09-08 | 马鞍山市银鼎机械制造有限公司 | A kind of removing method of short stress path rolling mill and its thread pitch |
| CN107413855A (en) * | 2017-06-30 | 2017-12-01 | 马鞍山市银鼎机械制造有限公司 | A kind of short stress path rolling mill eliminates thread pitch bascule |
| CN112547799A (en) * | 2020-11-06 | 2021-03-26 | 太原科技大学 | Special machine for rolling metal polar plate |
| CN113426836A (en) * | 2021-07-29 | 2021-09-24 | 莱芜钢铁冶金生态工程技术有限公司 | Novel short stress path rolling mill axial positioning structure |
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2011
- 2011-06-29 CN CN2011202239517U patent/CN202185452U/en not_active Withdrawn - After Issue
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102247984A (en) * | 2011-06-29 | 2011-11-23 | 北京京诚瑞信长材工程技术有限公司 | Short-stress wire rolling mill |
| CN102247984B (en) * | 2011-06-29 | 2013-08-14 | 北京京诚瑞信长材工程技术有限公司 | Short-stress wire rolling mill |
| CN103586287A (en) * | 2013-11-15 | 2014-02-19 | 江阴大地装备股份有限公司 | Pull rod type rolling mill |
| CN103978041A (en) * | 2014-05-21 | 2014-08-13 | 中冶南方工程技术有限公司 | High-rigidity short stress path rolling mill |
| CN105414195A (en) * | 2015-12-18 | 2016-03-23 | 重庆麦拓科技有限公司 | Short-stress line mill |
| CN105458013A (en) * | 2015-12-19 | 2016-04-06 | 重庆麦拓科技有限公司 | Rolling mill slide |
| CN105458013B (en) * | 2015-12-19 | 2018-02-06 | 重庆麦拓科技有限公司 | A kind of milling train slide |
| CN107052058A (en) * | 2017-03-01 | 2017-08-18 | 中冶华天南京工程技术有限公司 | Axial pretightening pull rod device |
| CN107138534A (en) * | 2017-06-30 | 2017-09-08 | 马鞍山市银鼎机械制造有限公司 | A kind of removing method of short stress path rolling mill and its thread pitch |
| CN107413855A (en) * | 2017-06-30 | 2017-12-01 | 马鞍山市银鼎机械制造有限公司 | A kind of short stress path rolling mill eliminates thread pitch bascule |
| CN112547799A (en) * | 2020-11-06 | 2021-03-26 | 太原科技大学 | Special machine for rolling metal polar plate |
| CN113426836A (en) * | 2021-07-29 | 2021-09-24 | 莱芜钢铁冶金生态工程技术有限公司 | Novel short stress path rolling mill axial positioning structure |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20120411 Effective date of abandoning: 20130814 |
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| RGAV | Abandon patent right to avoid regrant |