CN107350441B - Flexible roller contact type thin strip cooling device - Google Patents
Flexible roller contact type thin strip cooling device Download PDFInfo
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- CN107350441B CN107350441B CN201710811833.XA CN201710811833A CN107350441B CN 107350441 B CN107350441 B CN 107350441B CN 201710811833 A CN201710811833 A CN 201710811833A CN 107350441 B CN107350441 B CN 107350441B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/068—Accessories therefor for cooling the cast product during its passage through the mould surfaces
- B22D11/0682—Accessories therefor for cooling the cast product during its passage through the mould surfaces by cooling the casting wheel
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention discloses a flexible roller contact type thin strip cooling device, and belongs to the field of deep processing of steel materials. The cooling device comprises a frame, an upper compression roller and a lower compression roller, wherein cooling cavities for containing cooling liquid are arranged in the upper compression roller and the lower compression roller; two ends of the upper compression roller are respectively arranged on the upper fixing blocks, the upper fixing blocks are movably arranged on the rack, and a pressing piece used for pressing the upper fixing blocks downwards is arranged above the upper fixing blocks; and two ends of the upper compression roller are also provided with balance mechanisms for upwards supporting and lifting the upper compression roller. The invention overcomes the defects that the cooling speed of the thin strip is not easy to control and the cooling effect is not obvious when the thickness of the strip changes in the prior art, utilizes the contact heat transfer principle, realizes the effective control of the cooling speed by adjusting the contact length and the heat exchange coefficient of the flexible roller and the strip, can adapt to the rapid cooling of the strips with different thicknesses, has simple structure and is suitable for popularization and use.
Description
Technical Field
The invention relates to the technical field of steel material deep processing, in particular to a flexible roller contact type thin strip cooling device.
Background
The structure and performance of metal materials such as stainless steel are often improved by thermal treatment such as quenching and tempering, and the control of the cooling speed during quenching and tempering of thin metal strips and extremely thin strips is more difficult. The following cooling modes are commonly adopted in the industry at present: (1) Air cooling is adopted, but the air cooling is difficult to achieve high cooling speed, and the control deviation of the cooling speed is large during the air cooling; (2) The fixed slide block type contact heat exchange mode is adopted for cooling, but the surface of a workpiece is easy to scratch, and the contact pressure cannot be too large, so that the heat exchange effect is influenced; (3) The cooling roller with adjustable speed is adopted for contact cooling, but the thickness of the strip to be cooled is limited, the thickness of the strip cannot be too thick, the cooling effect is greatly reduced when the thickness exceeds a certain value, and the cooling speed of the strip is not fast enough. In summary, a cooling method for thin strips which is reasonable and effective is still lacking in the industry at present.
Through retrieval, the Chinese patent application number: 2011100209102, filing date: 2011, 1 month and 18 days, the invention and creation name is: the cooling roller device for the amorphous belt machine is characterized in that a left cover plate is connected with a flow guide element, and a copper roller is fixed on the outer sides of the left cover plate and the flow guide element; the right end of the flow guide element is provided with a water inlet pipe, and the left end of the flow guide element is arranged in a cavity formed by the copper roller, the left cover plate and the flow guide element; a converging cavity is formed among the left end of the flow guide element, the left cover plate and the copper roller; the inner surface of the copper roller is provided with a left spiral water channel groove and a right spiral water channel groove which enable water flows to be opposite, and the spiral water channel grooves are attached to the outer surface of the flow guide element to form a spiral water channel; the flow guide element is axially provided with a central hole, the middle part of the flow guide element is provided with a radial hole, the outer part of the radial hole is provided with an axial hole of which the bottom is communicated with the spiral water channel through the hole, and water flows in the left direction and the right direction flow out through the confluence cavity.
Also as in chinese patent application No.: 2013103241518, filing date: 7, month and 30 in 2013, the name of the invention is: a chill roll apparatus for producing high performance fast-cooled thin metal strip, the apparatus comprising: the roller comprises a roller base body, a roller sleeve, a first cover plate, a main shaft and a second cover plate, wherein the main shaft is provided with the roller base body, the outer circle side of the roller base body is provided with the roller sleeve, the two sides of the roller base body are provided with the first cover plate and the second cover plate and are connected through the roller sleeve, the peripheries of the two cover plates are provided with convex rings matched with the roller sleeve, the center area of the outer circle of the roller base body is provided with an annular boss, the center area of the inner surface of the roller sleeve is provided with axial square water grooves, the end surfaces of the axial square water grooves are attached to the outer circle surface of the boss of the roller base body to form axial square cooling water flow channels, and the outer side of the inner surface of the roller sleeve, the two cover plates and the outer circle surface of the roller base body jointly form a left step-shaped annular cooling water flow channel and a right step-shaped annular cooling water flow channel which are symmetrical. The water channel structure of the application is provided with a water channel structure which is helpful for realizing the homogenization of the temperature field distribution in the contact area of the roller sleeve and the amorphous strip, thereby improving a series of defects of the amorphous broadband product caused by uneven cooling.
The above applications are all good cooling devices, but the above applications mainly aim at optimizing the cooling water channel design, solve the problem of uneven cooling of the copper roller, and have no obvious benefit for adjusting the cooling speed.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention aims to overcome the defects that the cooling speed of a thin strip is not easy to control and the cooling effect is not obvious when the thickness of the strip changes in the prior art, and provides a flexible roller contact type thin strip cooling device.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the invention discloses a flexible roller contact type thin strip cooling device which comprises a rack, an upper pressing roller and a lower pressing roller, wherein cooling cavities for containing cooling liquid are arranged in the upper pressing roller and the lower pressing roller; two ends of the upper compression roller are respectively arranged on the upper fixing blocks, the upper fixing blocks are movably arranged on the rack, and a pressing piece used for pressing the upper fixing blocks downwards is arranged above the upper fixing blocks; and two ends of the upper compression roller are also provided with balance mechanisms for upwards supporting and lifting the upper compression roller.
Furthermore, the balance mechanism comprises a balance beam, the balance beam is distributed along the length direction of the upper compression roller and fixedly connected with the upper fixing blocks at the two ends of the upper compression roller, balance screws are connected above the two ends of the balance beam respectively, a fixing arm is arranged on one side of the rack, the balance screws penetrate through the fixing arm and the top of the fixing arm and are locked through locking nuts, and an elastic part is arranged between the locking nuts and the fixing arm.
Furthermore, a protruding sliding block is arranged on the upper fixing block, a sliding groove matched with the sliding block is correspondingly arranged on the rack along the height direction, and the upper fixing block is movably matched with the rack.
Furthermore, a stop block is arranged on the machine frame, extends towards the direction vertical to the length of the upper press roll and stops one side of the upper fixing block.
Furthermore, the bottom of the balance screw is provided with a balance seat, a mounting hole is formed in the balance seat, and the end part of the balance beam penetrates through the mounting hole and is fastened.
Furthermore, the upper compression roller comprises a mandrel, two ends of the mandrel are respectively arranged on the upper fixing block, end roller sleeves are respectively coated on the peripheries of the two ends of the mandrel, an intermediate roller sleeve is connected between the end roller sleeves at the two ends, and a cooling cavity is defined by the end roller sleeves, the intermediate roller sleeves and the mandrel; the structure of the lower press roll is the same as that of the upper press roll.
Furthermore, a water inlet channel and a water outlet channel are respectively arranged in the mandrel, cooling liquid flows into the cooling cavity through the water inlet channel, and the cooling liquid in the cooling cavity flows out of the mandrel through the water outlet channel.
Furthermore, the middle roller sleeve comprises a middle section, a transition section and fixing sections at two ends, the middle roller sleeve is connected with the end roller sleeves through the fixing sections at the two ends, the middle section is a flat and straight section which protrudes outwards from the fixing sections, and the middle section is smoothly connected with the fixing sections through the transition section.
Furthermore, the water inlet channel and the water outlet channel are distributed along the length direction of the mandrel and are respectively positioned at the two ends of the mandrel in the length direction, and one end of the water inlet channel is provided with a plurality of water inlet sub-channels communicated with the cooling cavity at intervals; one end of the water outlet channel is provided with a plurality of water outlet channels communicated with the cooling cavity at intervals.
Furthermore, at least two groups of upper press rolls and lower press rolls which are matched up and down are arranged on the frame.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following remarkable effects:
(1) According to the flexible roller contact type thin strip cooling device, the pressing piece used for pressing the upper fixing block downwards is arranged above the upper fixing block, the balance mechanisms used for supporting and lifting the upper pressing roller upwards are further arranged at the two ends of the upper pressing roller, the upper pressing roller is movably adjusted up and down through the mutual matching of the pressing piece and the balance mechanisms, the contact pressure and the contact area between the upper roller surface and the lower roller surface and a workpiece to be machined can be controlled, the cooling speed can be effectively adjusted, the flexible roller contact type thin strip cooling device can adapt to rapid cooling of strips with different thicknesses, and the application range is wide.
(2) According to the flexible roller contact type thin strip cooling device, the intermediate roller sleeve is made of the metal material with the high heat conductivity coefficient, and the intermediate roller sleeve is elastically flattened under the action of pressure during use, so that the contact area between the roller surface and a workpiece to be machined can be increased, the contact state can be improved by increasing the contact pressure, the heat exchange coefficient is increased, and the cooling speed is increased.
(3) According to the flexible roller contact type thin strip cooling device, the two sides of the upper fixing block are respectively provided with the stop blocks, and the stop blocks are used for stopping the upper fixing block from axially moving, namely the upper pressing roller can only slide up and down along the height direction of the rack in the up-and-down adjusting movement process, the upper fixing block is prevented from axially moving along the length direction of the upper pressing roller, and the stability of the upper pressing roller in up-and-down adjusting is further guaranteed.
(4) According to the flexible roller contact type thin strip cooling device, the middle roller sleeve comprises the middle section, the transition section and the fixing sections at two ends, the middle section is a straight section which protrudes out of the fixing sections, the protruding middle section is beneficial to ensuring that the middle roller sleeve fully and uniformly extrudes a workpiece to be machined, and the cooling speed and the cooling efficiency of the lower pressing roller and the upper pressing roller are further enhanced.
(5) According to the flexible roller contact type thin strip cooling device, at least two groups of upper press rollers and lower press rollers which are matched up and down are arranged on the rack, single-pass or multi-pass cooling can be set according to the thickness of a workpiece to be machined in production practice, the thickness range of the thin strip which can be cooled is larger, and the cooling efficiency of the thin strip is also obviously improved.
Drawings
FIG. 1 is a schematic view of the principle of contact cooling of a compliant roll in the present invention;
FIG. 2 is a schematic front view of a flexible roll contact thin strip cooling apparatus of the present invention;
FIG. 3 is a schematic right side view of a flexible roll contact thin strip cooling apparatus of the present invention;
FIG. 4 is a schematic top view of a flexible roll contact thin strip cooling apparatus of the present invention;
FIG. 5 is a schematic view of the single-pass flexible roll contact type thin strip cooling apparatus of the present invention;
FIG. 6 is a schematic structural view of a balancing mechanism according to the present invention;
FIG. 7 is a schematic view of the structure of the upper roll in the present invention.
The reference numerals in the schematic drawings illustrate: 1. a frame; 101. a connecting arm; 102. a fixed arm; 2. a transmission mechanism; 3. a lower pressing roller;
4. an upper compression roller; 401. a mandrel; 402. an intermediate roll sleeve; 403. a cooling chamber; 404. an end cap; 405. an end roll sleeve; 406. a water inlet channel; 407. a water inlet sub-channel; 408. a water outlet channel; 409. a water outlet channel; 410. a first rotary joint; 411. a second rotary joint; 5. a pressing member;
6. a balancing mechanism; 601. a balance screw; 602. locking the nut; 603. an elastic member; 604. a balance seat; 605. mounting holes; 606. a clamp arm; 607. a connecting pin; 608. a fixing pin;
7. a balance beam; 8. a workpiece to be processed; 9. a stopper; 10. a lower fixed block; 11. and (5) an upper fixing block.
Detailed Description
For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings.
The present invention will be further described with reference to the following examples.
Example 1
The thin cooling device of panel of taking of flexible roller contact of this embodiment includes frame 1, last compression roller 4 and lower compression roller 3, and lower compression roller 3 is rotated by the drive of drive mechanism 2, and specifically, drive mechanism 2 includes reduction gear, action wheel, follows driving wheel and hold-in range etc. and drive mechanism 2 drives lower compression roller 3 gyration to by last compression roller 4 gyration of frictional force drive between last compression roller 4 and the lower compression roller 3. Cooling cavities 403 for containing cooling liquid are arranged in the upper pressing roller 4 and the lower pressing roller 3; as shown in fig. 1, when in use, the workpiece 8 to be processed passes through the upper pressing roll 4 and the lower pressing roll 3 and is cooled by cooling liquid, specifically, roller ways fixedly connected with the machine frame 1 are arranged on two sides of a gap between the upper pressing roll 4 and the lower pressing roll 3, the roller ways are used for supporting and guiding and positioning the workpiece 8 to be processed, two sides of the width of the workpiece 8 to be processed are supported by the roller ways, and the workpiece 8 to be processed continuously advances in the gap between the upper pressing roll 4 and the lower pressing roll 3.
As shown in fig. 2 to 5, two ends of the lower press roll 3 are respectively mounted on lower fixing blocks 10, the lower fixing blocks 10 are arranged at the bottom of the frame 1, and the lower press roll 3 is contacted with the base of the frame 1 by self weight; go up the both ends of compression roller 4 and install respectively on last fixed block 11, specifically, seted up the mating holes in going up fixed block 11, the tip cooperation of going up compression roller 4 has the bearing and through this mating holes and 11 normal running fit of fixed block, and goes up 11 movable mounting of fixed block in the frame 1, can follow 1 direction of height up-and-down motion in the frame, specifically can adopt following mode: the upper fixing block 11 is provided with a protruding sliding block, and the rack 1 is correspondingly provided with a sliding groove matched with the sliding block along the height direction. Go up the fixed block 11 top and be equipped with the piece 5 that compresses tightly (can adopt clamp bolt) that is used for compressing tightly upper fixed block 11 downwards, specifically, be connected with linking arm 101 between the frame 1 of the 4 length direction both sides of last compression roller, compress tightly 5 and pass this linking arm 101 and aim at upper fixed block 11 downwards, screw downwards and compress tightly 5 and make it compress tightly upper fixed block 11 downwards gradually and can realize pushing down to last compression roller 4.
It should be noted that, in this embodiment, balancing mechanisms 6 for supporting and lifting up the upper pressing roller 4 are further disposed at two ends of the upper pressing roller 4, and the up-and-down movable adjustment of the upper pressing roller 4 is realized through the mutual cooperation of the pressing member 5 and the balancing mechanisms 6. As shown in fig. 2 to 6, the balance mechanism 6 includes a balance beam 7, the balance beam 7 is distributed along the length direction of the upper press roll 4 and is fixedly connected with the upper fixing blocks 11 at the two ends of the upper press roll 4, balance screws 601 are respectively connected above the two ends of the balance beam 7, a fixing arm 102 is protrudingly arranged at one side of the frame 1, the balance screws 601 pass through the fixing arm 102 and the top of the balance screws is locked by locking nuts 602, and an elastic member 603 (specifically, a compression spring may be adopted) is arranged between the locking nuts 602 and the fixing arm 102; as shown in fig. 4, two sides of the upper press roll 4 in the length direction are respectively provided with a set of balance mechanism 6, that is, the end parts of the two balance beams 7 at the same side are respectively and fixedly connected to two sides of the upper fixing block 11, and the balance mechanism 6 pulls the balance beams 7 to balance the weight of the whole upper press roll 4. The arrangement of the balance mechanism 6 is very beneficial to controlling the stable adjustment of the upper compression roller 4, when the upper compression roller 4 needs to be adjusted downwards to reduce the gap between the upper compression roller 4 and the lower compression roller 3, and the downward screwing and pressing piece 5 gradually presses the upper fixed block 11 downwards, the downward movement of the upper fixed block 11 drives the balance beam 7 to synchronously move downwards, so that the locking nut 602 gradually extrudes the elastic piece 603 to continuously enhance the compression force of the elastic piece, the adjustment is stopped until the upper compression roller 4 reaches a proper height, and the adjustment process is stable; when the upper pressing roller 4 needs to be lifted to increase the gap between the upper pressing roller 4 and the lower pressing roller 3, after the pressing piece 5 is unscrewed, the upper pressing roller 4 is continuously screwed to increase the reverse acting force of the elastic piece 603 under the action of the gravity and the reverse acting force of the elastic piece 603, and when the reverse acting force of the elastic piece 603 is greater than the gravity of the upper pressing roller 4, the balance screw 601 is pushed to be lifted, and the lifting of the upper pressing roller 4 is finally realized.
As shown in fig. 6, in the present embodiment, a balance seat 604 is disposed at the bottom of a balance screw 601, a mounting hole 605 is disposed in the balance seat 604, an end of a balance beam 7 passes through the mounting hole 605 and is fastened, furthermore, two sides of the top of the balance seat 604 are respectively disposed with a clamp arm 606, the bottom of the balance screw 601 is embedded between the clamp arms 606 at two sides, and both the bottom of the balance screw 601 and the clamp arms 606 are disposed with a through hole, a connecting pin 607 passes through the through hole to connect the balance screw 601 and the balance seat 604, and an end of the connecting pin 607 is fastened by a fixing pin 608. The balance seat 604 is arranged to make the connection between the balance screw 601 and the balance beam 7 flexible, and is convenient to detach and replace.
As shown in fig. 7, the upper pressing roller 4 in this embodiment includes a mandrel 401, bearings are fitted at two ends of the mandrel 401 and respectively mounted on the upper fixing block 11, end roller sleeves 405 are respectively wrapped around the outer peripheries of the two ends of the mandrel 401, an intermediate roller sleeve 402 is connected between the end roller sleeves 405 at the two ends, and a cooling cavity 403 is defined between the end roller sleeves 405, the intermediate roller sleeve 402 and the mandrel 401. During specific installation, the end roller sleeve 405 is assembled on the mandrel 401 and fixed in a welding mode, so that the installation and disassembly are facilitated, the end roller sleeve 405 and the middle roller sleeve 402 are matched and processed, matched threaded holes are formed in the end roller sleeve 405 and the middle roller sleeve 402, the end roller sleeve 405 and the middle roller sleeve 402 are fixed through bolts, gaskets, waterproof rubber and the like are sequentially arranged below the bolts for sealing, the outer side of the end roller sleeve 405 is further sealed through the end cover 404, rubber sealing pieces are arranged between the end cover 404 and the end roller sleeve 405 to guarantee good sealing of the cooling cavity 403, and the structure of the lower compression roller 3 is the same as that of the upper compression roller 4. The intermediate roll sleeve 402 of the embodiment is made of a metal material with a high thermal conductivity coefficient (such as pure copper), the thickness of the roll sleeve is 3-20 mm, and the intermediate roll sleeve 402 is elastically flattened under the action of pressure when in use, so that on one hand, the contact area between the roll surface and the workpiece 8 to be machined can be increased, and on the other hand, the contact state can be improved by increasing the contact pressure, the heat exchange coefficient is increased, and the cooling speed is increased; and the flexible roll surface of the middle roll sleeve 402 is in rolling contact with the workpiece 8 to be machined, so that the surface of the workpiece 8 to be machined can be effectively prevented from being scratched, and the surface quality is guaranteed.
In this embodiment, a water inlet channel 406 and a water outlet channel 408 are respectively disposed in the mandrel 401, the cooling liquid flows into the cooling cavity 403 through the water inlet channel 406, the cooling liquid in the cooling cavity 403 flows out of the mandrel 401 through the water outlet channel 408, specifically, the water inlet channel 406 and the water outlet channel 408 are both distributed along the length direction of the mandrel 401 and are respectively located at two ends of the length direction of the mandrel 401, a plurality of water inlet sub-channels 407 communicated with the cooling cavity 403 are disposed at intervals at one end (close to the inner end of the cooling cavity 403) of the water inlet channel 406, a plurality of water outlet sub-channels 409 communicated with the cooling cavity 403 are disposed at intervals at one end (close to the inner end of the cooling cavity 403) of the water outlet channel 408, a single-loop first rotary joint 410 is disposed at the outer end of the water inlet channel 406, a single-loop second rotary joint 411 is disposed at the outer end of the water outlet channel 408, and similarly, the structure of the lower pressure roller 3 is the same as that of the upper pressure roller 4. When in use, cooling liquid enters the water inlet channel 406 from the first rotary joint 410, then flows into the cooling cavity 403 through the water inlet sub-channel 407, exchanges heat with the flexible intermediate roller sleeve 402 in the cooling cavity 403, and then flows out through the water outlet channel 409, the water outlet channel 408 and the second rotary joint 411.
In the embodiment, the upper and lower movable adjustment of the upper compression roller 4 is realized through the mutual matching of the compression part 5 and the balance mechanism 6, when the flexible upper compression roller 4 needs to be pressed down, the compression parts 5 at the two ends are screwed to press the upper fixing block 11 downwards, so that the roller gap is reduced, and the contact pressure and the contact area between the roller surface and the workpiece 8 to be processed are increased; when the upper press roll 4 needs to be lifted, the pressing piece 5 is screwed out, the upper press roll 4 is lifted under the action of the balance mechanism 6, and the contact pressure and the contact area between the roll surface and a workpiece 8 to be machined are reduced; the workpiece 8 to be processed transfers heat to the cooling liquid in the cooling cavity 403 through the intermediate roll sleeve 402 by contacting and heat exchanging with the rotating lower press roll 3 and the rotating upper press roll 4, and finally the cooling liquid takes the heat out. The control that cooling rate was realized through contact pressure and area of contact between upper and lower roll surface and the 8 of treating machined parts of adjustment to the this embodiment to can adapt to the quick cooling to different thickness strips, and simple structure, suitable using widely.
Example 2
The basic structure of the flexible roller contact type thin strip cooling device of the embodiment is the same as that of embodiment 1, and further, in this embodiment, a stopper 9 is further disposed on the frame 1, the stopper 9 extends in a direction perpendicular to the length of the upper pressing roller 4 and blocks one side of the upper fixing block 11, specifically, as shown in fig. 3, the stoppers 9 are respectively disposed on two sides of the upper fixing block 11, and the stoppers 9 are used for blocking the upper fixing block 11 from moving axially, that is, during the up-down adjustment movement of the upper pressing roller 4, the upper fixing block 11 can only slide up and down along the height direction of the frame 1 without moving axially along the length direction of the upper pressing roller 4, and further ensuring the stability of the up-down adjustment of the upper pressing roller 4; similarly, the two sides of the lower fixing block 10 are also provided with stop blocks 9 for preventing axial movement.
Example 3
The basic structure of the flexible roller contact type thin strip cooling device of the embodiment is the same as that of embodiment 2, further, as shown in fig. 7, the intermediate roller sleeve 402 of the embodiment includes an intermediate section, a transition section and fixing sections at two ends, the intermediate roller sleeve 402 is connected with the end roller sleeve 405 through the fixing sections at two ends, the intermediate section is a straight section protruding outwards from the fixing sections, and the intermediate section is smoothly connected with the fixing sections through the transition section, the protruding arrangement of the intermediate section helps to ensure that the intermediate roller sleeve 402 fully and uniformly extrudes a workpiece 8 to be processed, and the cooling speed and the cooling efficiency of the lower compression roller 3 and the upper compression roller 4 are further enhanced.
Example 4
The basic structure of the flexible roller contact type thin strip cooling device of the present embodiment is the same as that of embodiment 3, and it should be noted that, at least two sets of upper press rollers 4 and lower press rollers 3 which are vertically matched are arranged on the frame 1 of the present embodiment, so as to realize multi-pass cooling of the workpiece 8 to be processed; in the production practice, single-pass or multi-pass cooling can be set according to the thickness of the workpiece 8 to be processed, so that the thickness range of the thin strip which can be cooled is larger, the cooling efficiency of the thin strip is also obviously improved, the thickness of the applicable thin strip is 0.01-3 mm, and the cooling speed can be controlled at 50-900 ℃/s.
In this embodiment, three sets of upper press rolls 4 and lower press rolls 3 which are vertically matched are arranged on the frame 1 and are used for cooling the thin strip with the thickness exceeding 0.5mm for three times, specifically, the roll gaps of the upper press rolls 4 and the lower press rolls 3 for three times are adjusted to be consistent by pressing down the pressing piece 5, so that the thin strip can be sequentially cooled, the traveling speed of the thin strip is 10m/min, and the cooling speed can reach 300 ℃/s.
When the cooling device of the embodiment is used for cooling the thin strip, the method comprises the following steps: the transmission mechanism 2 is started, the transmission mechanism 2 drives the lower press roll 3 to rotate, cooling liquid is filled in the cooling cavities 403 in the lower press roll 3 and the upper press roll 4, the workpiece 8 is to be cooled after advancing in the roll gap between the upper press roll 4 and the lower press roll 3, the pressing part 5 and the balancing mechanism 6 are adjusted according to processing requirements, the size of the roll gap between the upper press roll 4 and the lower press roll 3 is adjusted, and therefore the cooling speed of the workpiece 8 is controlled.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (7)
1. The utility model provides a thin cooling device of panel of flexible roller contact, includes frame (1), last compression roller (4) and compression roller (3) down, its characterized in that: cooling cavities (403) for containing cooling liquid are arranged in the upper pressing roller (4) and the lower pressing roller (3); two ends of the upper compression roller (4) are respectively arranged on an upper fixing block (11), the upper fixing block (11) is movably arranged on the rack (1), and a pressing piece (5) used for pressing the upper fixing block (11) downwards is arranged above the upper fixing block (11); the two ends of the upper compression roller (4) are also provided with a balance mechanism (6) for upwards supporting and lifting the upper compression roller (4);
the balance mechanism (6) comprises a balance beam (7), the balance beam (7) is distributed along the length direction of the upper compression roller (4) and fixedly connected with upper fixing blocks (11) at two ends of the upper compression roller (4), balance screws (601) are respectively connected above two ends of the balance beam (7), a fixing arm (102) is arranged on one side of the rack (1), the balance screws (601) penetrate through the fixing arm (102) and are locked at the tops by locking nuts (602), and an elastic part (603) is arranged between the locking nuts (602) and the fixing arm (102); the bottom of the balance screw rod (601) is provided with a balance seat (604), a mounting hole (605) is formed in the balance seat (604), and the end part of the balance beam (7) penetrates through the mounting hole (605) and is fastened; the upper compression roller (4) comprises a mandrel (401), two ends of the mandrel (401) are respectively installed on the upper fixing blocks (11), end roller sleeves (405) are respectively wrapped on the peripheries of the two ends of the mandrel (401), a middle roller sleeve (402) is connected between the end roller sleeves (405) at the two ends, and a cooling cavity (403) is defined among the end roller sleeves (405), the middle roller sleeve (402) and the mandrel (401); the structure of the lower press roll (3) is the same as that of the upper press roll (4).
2. The flexible roll-contact thin strip cooling device according to claim 1, characterized in that: the upper fixing block (11) is provided with a protruding sliding block, the rack (1) is correspondingly provided with a sliding groove matched with the sliding block along the height direction, and the upper fixing block (11) is movably matched with the rack (1).
3. The flexible roll-contact thin strip cooling device according to claim 1, characterized in that: the frame (1) is also provided with a stop block (9), and the stop block (9) extends towards the direction vertical to the length of the upper press roll (4) and stops at one side of the upper fixing block (11).
4. The flexible roll-contact thin strip cooling device according to claim 1, characterized in that: a water inlet channel (406) and a water outlet channel (408) are respectively arranged in the mandrel (401), cooling liquid flows into the cooling cavity (403) through the water inlet channel (406), and the cooling liquid in the cooling cavity (403) flows out of the mandrel (401) through the water outlet channel (408).
5. The flexible roll-contact thin strip cooling device according to claim 1, characterized in that: the middle roller sleeve (402) comprises a middle section, a transition section and fixed sections at two ends, the middle roller sleeve (402) is connected with the end roller sleeve (405) through the fixed sections at the two ends, the middle section is a straight section protruding outwards from the fixed sections, and the middle section is smoothly connected with the fixed sections through the transition section.
6. The flexible roll-contact thin strip cooling device according to claim 4, characterized in that: the water inlet channel (406) and the water outlet channel (408) are distributed along the length direction of the mandrel (401) and are respectively positioned at two ends of the length direction of the mandrel (401), and one end of the water inlet channel (406) is provided with a plurality of water inlet sub-channels (407) communicated with the cooling cavity (403) at intervals; one end of the water outlet channel (408) is provided with a plurality of water outlet sub-channels (409) which are communicated with the cooling cavity (403) at intervals.
7. The flexible thin strip cooling device of any one of claims 1~6 wherein: at least two groups of upper compression rollers (4) and lower compression rollers (3) which are matched up and down are arranged on the frame (1).
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| CN201710811833.XA CN107350441B (en) | 2017-09-11 | 2017-09-11 | Flexible roller contact type thin strip cooling device |
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| CN201710811833.XA CN107350441B (en) | 2017-09-11 | 2017-09-11 | Flexible roller contact type thin strip cooling device |
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| CN107350441B true CN107350441B (en) | 2023-03-17 |
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| CN114985690B (en) * | 2022-05-27 | 2023-06-06 | 安徽安坤新材科技有限公司 | Cast rolling equipment for producing copper-aluminum composite board and cast rolling process thereof |
| CN115076170B (en) * | 2022-06-14 | 2024-06-04 | 安徽工业大学 | High-frequency impact rolling device suitable for composite part |
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