CN113118242A - Four roller levelling machines of super high strength steel - Google Patents
Four roller levelling machines of super high strength steel Download PDFInfo
- Publication number
- CN113118242A CN113118242A CN202110450367.3A CN202110450367A CN113118242A CN 113118242 A CN113118242 A CN 113118242A CN 202110450367 A CN202110450367 A CN 202110450367A CN 113118242 A CN113118242 A CN 113118242A
- Authority
- CN
- China
- Prior art keywords
- roll
- working roll
- roller
- bending
- strength steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims description 11
- 239000010959 steel Substances 0.000 title claims description 11
- 238000005452 bending Methods 0.000 claims abstract description 62
- 238000005096 rolling process Methods 0.000 claims abstract description 49
- 229910000797 Ultra-high-strength steel Inorganic materials 0.000 claims abstract description 40
- 238000013000 roll bending Methods 0.000 claims abstract description 39
- 230000005540 biological transmission Effects 0.000 claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000009471 action Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 238000005098 hot rolling Methods 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 description 6
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 241000277275 Oncorhynchus mykiss Species 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/05—Stretching combined with rolling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The invention belongs to the technical field of hot rolling forming, and relates to an ultrahigh-strength steel four-roller temper mill, which comprises a roller system device, a roller system device and a rolling device, wherein the roller system device comprises a small-diameter working roller and a large-diameter supporting roller; the working roll bending device comprises a negative bending assembly and a positive bending assembly which are assembled into an E-shaped structure; the double-working-roll transmission device comprises two driving units, an upper universal shaft and a lower universal shaft; a work roll changing device located on the operation side; and the rolling line elevation adjusting device comprises a hydraulic driving unit and a locking mechanism used for locking the hydraulic driving unit. The invention can effectively reduce the rolling force, is beneficial to improving the plate shape of the ultrahigh-strength steel in the flattening process, has large roll bending force and opening degree, is beneficial to the threading of the ultrahigh-strength steel, can effectively transfer the rolling moment, and is suitable for the hot rolling forming of the ultrahigh-strength steel.
Description
Technical Field
The invention belongs to the technical field of hot rolling forming, and particularly relates to an ultrahigh-strength steel four-roller temper mill.
Background
With the development of ferrous metallurgy technology, ultrahigh-strength steel with yield strength of more than 1180MPa is more and more common in application, users have higher and higher requirements on the ultrahigh-strength steel, and at present, a temper mill for improving the comprehensive performance and the plate shape of the ultrahigh-strength steel is rarely reported. The leveler applicable to ultra-high strength steel needs to have the following characteristics: (1) the rolling device has large rolling force and rolling moment (2) and comprises a small-diameter working roll and a large-diameter supporting roll; (3) has large positive roll bending force; (4) has a large opening degree.
The existing temper mill is mostly suitable for the flattening of common strength strip steel or high-strength strip steel, and has the following defects for rolling ultrahigh-strength steel: (1) the comprehensive rigidity is small, and the thickness of the flattened strip steel is easy to be out of tolerance; (2) generally, the transmission is performed by a lower supporting roller, the transmission torque of the transmission can be transmitted to the strip steel only through a working roller, and when large rolling torque is transmitted, the phenomenon of slipping is easy to occur between the lower supporting roller and the working roller; for a single working roll driven temper mill, the size of a shaft head is limited, so that the rolling moment transmitted is limited, and the rolling requirement of ultrahigh-strength steel cannot be met; (3) the diameter of a part of the working rolls of the flattening machine type is larger, which is not beneficial to flattening the ultrahigh-strength steel; (4) the bending force of the working roll bending block is small, and the capability of improving the shape of the ultrahigh-strength steel plate is limited; (5) the ultra-high strength steel head has poor plate shape, and the opening degree of the upper working roll and the lower working roll of the existing temper mill is small, so that the ultra-high strength steel strip is not beneficial to strip threading.
Disclosure of Invention
In view of the above disadvantages of the prior art, the present invention provides an ultra-high strength steel four-roll temper mill, which is used for solving the problem that the common temper mill in the prior art is not suitable for hot rolling forming of ultra-high strength steel.
To achieve the above and other related objects, the present invention provides an ultra-high strength steel four-roll leveler including:
the roll system device comprises an upper working roll and a lower working roll with small diameters, and an upper supporting roll and a lower supporting roll with large diameters, wherein the upper working roll and the lower working roll can be staggered with each other;
the working roll bending devices are respectively positioned on the operation side and the transmission side and respectively comprise a negative bending component for applying negative bending roll force to the working roll and a positive bending component for applying positive bending roll force to the working roll, and the negative bending component and the positive bending component are assembled to form an E-shaped structure;
the double-working-roll transmission device comprises two driving units, an upper universal shaft and a lower universal shaft, wherein the two driving units are respectively connected with the upper working roll and the lower working roll through the two universal shafts so as to transmit rolling torque;
the working roll changing device is positioned on the operation side and used for changing the working roll;
the rolling line elevation adjusting device comprises a hydraulic driving unit and a locking mechanism used for locking the hydraulic driving unit.
Further, the diameter of the working roller is smaller than phi 475mm, and the diameter of the supporting roller is larger than phi 1150 mm. The structure can effectively reduce the rolling force and effectively improve the comprehensive rigidity of the temper mill.
Furthermore, a bearing seat of the upper working roll is provided with a long pin groove and a short pin groove, and a bearing seat of the lower working roll is provided with a bolt; or a bearing seat of the lower working roll is provided with a long pin groove and a short pin groove, and a bearing seat of the upper working roll is provided with a bolt; during normal rolling, the inserted pin is inserted into the long pin groove; when the working roll is changed, the inserted pin is inserted into the short pin groove.
Further, the negative bending assembly comprises a negative bending balance integrated block, a negative bending cylinder and a supporting roller balance cylinder, and the negative bending cylinder and the supporting roller balance cylinder are arranged on the negative bending balance integrated block; the positive bending assembly comprises a positive bending integrated block and a positive bending cylinder, and the positive bending cylinder is installed on the positive bending integrated block. The structure can provide large roll bending force and large opening degree, can effectively improve the plate shape of the ultrahigh-strength steel, and is convenient for the ultrahigh-strength steel to pass through.
Further, be located the operation side the work roll bending device and the work roll bending device that is located the transmission side pass through the work roll rail connection that changes the roller, and are located and be provided with spout and locking plate on the work roll bending device of operation side, locking cylinder is connected to the rear end of locking plate, installs the universal shaft strutting arrangement who is used for supporting two upper and lower universal shafts on the work roll bending device that is located the transmission side. The sliding groove and the locking plate structure facilitate the vertical sliding of the working roller and improve the locking reliability of the working roller.
Further, universal shaft strutting arrangement is including supporting support body, upper shaft support gyro wheel spare, gyro wheel swing span, gyro wheel swing jar and lower shaft support gyro wheel spare, it sets up on the work roll bending roll device of transmission side to support the support body, the front end of gyro wheel swing span articulates on supporting the support body, upper shaft support gyro wheel spare sets up on the gyro wheel swing span, gyro wheel swing jar fixed mounting is on supporting the support body and the output is articulated with the rear end of gyro wheel swing span, lower shaft support gyro wheel spare is installed on supporting the support body, during the roll change, gyro wheel swing jar action drives the universal shaft of gyro wheel swing span and upper shaft support gyro wheel swing in order to support the top, the universal shaft of lower shaft support gyro wheel spare support below. The structure is convenient for supporting the universal shaft during roll changing.
Furthermore, two driving units of the double-working-roll transmission device are connected with two universal shafts through an integrated speed reducing unit.
Further, the working roll replacing device comprises a moving vehicle, a side moving vehicle and a push-pull vehicle, wherein the side moving vehicle and the push-pull vehicle are movably arranged on the moving vehicle, the side moving vehicle is used for enabling the working roll to transversely move, and the push-pull vehicle is used for dragging out or pushing the working roll into the memorial archway. By the structure, the working roll is changed by adopting the full-automatic lateral movement type roll changing at the operation side, so that the operation efficiency of the temper mill is improved.
Further, the hydraulic driving unit of the rolling line elevation adjusting device is a push-pull hydraulic cylinder, the locking mechanism is arranged on a piston rod of the push-pull hydraulic cylinder, and the push-pull hydraulic cylinder can be locked by the locking mechanism. The structure ensures that the roller is locked by the locking mechanism in time when adjusted to the required position, and effectively prevents the wedge plate from sliding downwards when the rolling force is too large.
Further, the rolling line elevation adjusting device further comprises a wedge plate, an upper supporting plate and a lower supporting plate, the front end of the wedge plate is located between the lower supporting plate and the upper supporting plate, and the rear end of the wedge plate is connected with a piston rod of the push-pull hydraulic cylinder and can move back and forth under the action of the piston rod to adjust the elevation of the roller. When the working roll is changed or the roll is worn, the upper and lower positions of the roll can be adjusted.
As mentioned above, the ultrahigh-strength steel four-roller temper mill has the following beneficial effects:
through the roll system configuration of the small-diameter working roll and the large-diameter supporting roll, the rolling force can be effectively reduced, the energy consumption and the investment of a unit are saved, the comprehensive rigidity of the temper mill is effectively improved, and the strip shape in the process of flattening the ultrahigh-strength steel is favorably improved;
by arranging the split working roll bending device, the temper mill has large roll bending force, and the plate shape of the ultrahigh-strength steel can be effectively improved; meanwhile, the assembly is of an E-shaped structure, so that the assembly has a large opening degree, the ultra-high-strength steel is facilitated to pass through the belt, and the operation rate of a unit is improved;
the double-working-roll transmission device is adopted to directly transmit the rolling moment to the ultrahigh-strength strip steel, so that the defects of slippage between roll systems of the traditional temper mill and limited transmission moment are overcome;
the working roll changing device is adopted to realize full-automatic lateral movement type roll changing on the operation side, so that the operation efficiency of the temper mill is improved, and the manual work intensity is reduced;
the hydraulic drive type rolling line elevation adjusting device is simple in structure, and the reliability of the rolling line elevation adjusting device is improved.
Drawings
FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a view in the direction M of FIG. 1;
FIG. 3 is an enlarged view of a portion of the structure of FIG. 1;
FIG. 4 is a cross-sectional view A-A of FIG. 1;
FIG. 5 is a view taken along line K of FIG. 1;
FIG. 6 is a cross-sectional view B-B of FIG. 5;
fig. 7 is an N-direction view of fig. 1.
Description of reference numerals
10-a housing assembly; 11-driving side memorial archways; 12-operating the side memorial archways; 20-an onboard platform;
30-double working roll transmission device; 31-upper work roll motor; 32-lower work roll motor; 33-a speed reducer; 34-cardan shaft;
35-cardan shaft;
40-gimbal support means; 41-upper shaft supporting roller member; 42-a support frame body; 43-roller swing frame; 44-roller oscillation cylinder; 45-lower shaft support roller member;
50-hydraulic screwdown;
60-a roll-train device; 61-upper support rollers; 62-upper work roll; 621-long pin slot; 622-short pin slot; 63-lower working roll;
631-a latch; 64-lower support rolls;
70-rolling line elevation adjusting device; 71-an upper support plate; 72-wedge plates; 73-lower support plate; 74-push-pull hydraulic cylinder; 75-a locking mechanism;
80-supporting roll changing device; 81-a removable cover plate;
90-working roll changing device; 91-moving the vehicle; 92-a push-pull cart; 93-side shift cars; 94-a locking mechanism;
100-supporting roller locking device;
110-work roll locking means; 111-a locking plate;
120-a work roll bending device; 121-negative bending balance integrated block; 122-positive bending integrated block; 123-work roll changing track;
124-chute.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Referring to fig. 1 to 7, the present invention provides an ultra-high strength steel four-roll temper mill, including:
the roll system device 60 comprises an upper working roll 62 with a small diameter, a lower working roll 63, an upper supporting roll 61 with a large diameter and a lower supporting roll 64, and the upper working roll 62 and the lower working roll 63 can be staggered with each other;
the working roll bending devices 120 are respectively positioned on the operation side and the transmission side and respectively comprise a negative bending component for applying negative bending roll force to the working roll and a positive bending component for applying positive bending roll force to the working roll, and the negative bending component and the positive bending component are assembled to form an E-shaped structure;
the double-working-roll transmission device 30 comprises two driving units, a universal shaft 34 and a universal shaft 35, wherein the two driving units are respectively connected with an upper working roll 62 and a lower working roll 63 through the universal shaft 34 and the universal shaft 35 so as to transmit rolling torque;
a work roll changing device 90 on the operating side for changing the work roll;
the rolling line elevation adjusting device 70 includes a hydraulic driving unit and a locking mechanism 75 for locking the hydraulic driving unit.
Specifically, the ultrahigh-strength steel four-roller temper mill comprises an archway assembly 10, wherein the archway assembly 10 comprises a transmission side archway 11, an operation side archway 12, a cross beam and a floor plate. The basement is installed on a civil engineering foundation through foundation bolts, the transmission side housing windows 11 and the operation side housing windows 12 are installed on the basement, and the transmission side housing windows 11 and the operation side housing windows 12 are connected through an upper cross beam and a lower cross beam. An organic upper platform 20 is arranged on the housing assembly 10, and the upstairs of the organic upper platform 20 are positioned on the transmission side. An upper support roller 61, an upper working roller 62, a lower working roller 63 and a lower support roller 64 are all mounted in the window of the housing assembly 10.
The top of the windows of the operation side housing windows 12 and the transmission side housing windows 11 is provided with a hydraulic pressing device 50, and the rolling force generated by the hydraulic pressing device 50 is applied to the strip steel through an upper supporting roller 61 and an upper working roller 62.
The leveling machine adopts a small-diameter working roll and a large-diameter supporting roll system. The maximum diameter of the upper and lower work rollers 62 and 63 is less than Φ 475mm, and the minimum diameter of the upper and lower support rollers 61 and 64 is greater than Φ 1150 mm. By adopting the arrangement of the roller system, on one hand, the rolling force can be effectively reduced, so that the energy consumption of the unit is saved, and on the other hand, the comprehensive rigidity of the temper mill can be effectively improved.
In addition, in order to facilitate roll replacement, a bearing seat of the upper working roll 62 is provided with a long pin slot 621 and a short pin slot 622, and a bearing seat of the lower working roll 63 is provided with a bolt 631; or, a bearing seat of the lower working roll 63 is provided with a long pin slot 621 and a short pin slot 622, and a bearing seat of the upper working roll 62 is provided with a bolt 631; in normal rolling, the insert 631 is inserted into the long pin groove 621; when the working roller is changed, the latch 631 is inserted into the short pin groove 622. With the structure, rolling and roll changing processes can be simultaneously realized through roll staggering. In this embodiment, the lower end of the bearing seat of the upper working roll 62 is provided with a long pin slot 621 and a short pin slot 622, the bearing seat of the lower working roll 63 is provided with a bolt 631, when the working roll is changed, the lower working roll 63 is dragged to a roll-staggering position, and the bolt 631 is aligned with the short pin slot 622 of the upper working roll 62, so as to drag the working roll out; when the flat production is performed, the latch 631 is aligned with the long pin slot 621, which facilitates rolling.
The working roll bending device 120 adopting the split E-shaped structure can provide a positive bending roll force of more than 1000kN on one side, can provide an opening degree of more than 105mm while providing a large bending roll force, and is convenient for ultra-high-strength steel to pass through a belt. Specifically, the work roll bending devices 120 are respectively installed on the respective middle spigot surfaces of the transmission side housing 11 and the operation side housing 12 through bolts, and the work roll bending devices 120 are of an E-shaped structure and comprise a negative bending component and a positive bending component. The negative bending assembly comprises a negative bending balance integrated block 121, a negative bending cylinder and a supporting roll balance cylinder (not shown in the figure), and the negative bending cylinder and the supporting roll balance cylinder are arranged on the negative bending balance integrated block 121, so that the structure can apply negative bending roll force to the upper working roll 62 and the lower working roll 63 and can provide balance force for the upper supporting roll 61; the positive bending assembly includes a positive bending manifold 122 and a positive bending cylinder (not shown), and the positive bending cylinder is mounted on the positive bending manifold 122 to apply a positive bending force to the upper work roll 62 and the lower work roll 63. The positive bending manifold block 122 is mounted on the negative bending balancing manifold block 121 by bolts. The split structure can facilitate the processing of the working roll bending device 120 and improve the processing performance; the direction of the pipeline inside the working roll bending device 120 is convenient to optimize; the subsequent spare parts of the positive bending assembly are convenient to replace; the piston and the seal of the oil cylinder can be assembled and maintained under the condition of not disassembling the whole roll bending device.
Referring to fig. 4 to 6, the work roll bending apparatus 120 located at the operation side F1 and the work roll bending apparatus 120 located at the transmission side F2 are connected to each other by the work roll changing rail 123 located at the lower portion, the slide groove 124 and the lock plate 111 are provided in the work roll bending apparatus 120 located at the operation side, the lock cylinder is connected to the rear end of the lock plate 111, and the universal shaft support apparatus 40 for supporting the universal shaft 34 and the universal shaft 35 is mounted in the work roll bending apparatus 120 located at the transmission side. Specifically, the operation side of the work roll bending device 120 is provided with a sliding groove 124, the locking plate 111 of the work roll locking device 110 is mounted on the work roll bending device 120 through a bolt, and the locking cylinder is mounted on the housing assembly 10 through a base. In the rolling process, the bearing seat on the operation side of the working roll leans against the sliding groove 124 and can be locked through the locking plate 111 of the working roll locking device 110, so that the upper working roll 62 and the lower working roll 63 can conveniently slide up and down along the vertical direction, and the locking reliability of the working roll is improved. The structure can transmit the axial force generated in the working process of the working roll to the working roll bending device 120 and transmit the axial force to the memorial archway through the working roll bending device 120, thereby enhancing the stability of the structure and improving the strength and the rigidity of the structure. The support roller locking device 100 is mounted on the housing assembly 10 and locks the upper support roller 61 and the lower support roller 64 during the leveling process.
The leveling machine adopts a double-working-roll transmission device 30, and two driving units of the double-working-roll transmission device 30 are connected with a universal shaft 34 and a universal shaft 35 through an integrated speed reducing unit. In this embodiment, the driving unit adopts a motor, and the integrated speed reduction unit adopts a speed reducer 33. Specifically, an upper working roll motor 31 and a lower working roll motor 32 are installed on a civil engineering foundation through bases, the upper working roll motor 31 and the lower working roll motor 32 are connected with a speed reducer 33 through couplers, the speed reducer 33 transmits torque to an upper working roll 62 through a universal shaft 34 above, and transmits torque to a lower working roll 63 through the universal shaft 34 below. The structure can directly transmit rolling torque to the ultrahigh-strength strip steel, and overcomes the defects of slippage between roller systems of the traditional planisher and limited transmission torque.
The work roll bending device 120 on the transmission side is provided with a hydraulically oscillating universal shaft support device 40, and when the work roll needs to be replaced, the drive shaft supports oscillation, and the universal shaft 34 and the universal shaft 35 are supported by rollers. Specifically, the universal shaft supporting device 40 includes a supporting frame body 42, an upper shaft supporting roller piece 41, a roller swing frame 43, a roller swing cylinder 44 and a lower shaft supporting roller piece 45, the supporting frame body 42 is disposed on the work roll bending device 120 on the transmission side through bolts, the front end of the roller swing frame 43 is hinged on the supporting frame body 42, the upper shaft supporting roller piece 41 is disposed on the roller swing frame 43, the roller swing cylinder 44 is fixedly mounted on the supporting frame body 42, the output end of the roller swing frame is hinged to the rear end of the roller swing frame 43, the lower shaft supporting roller piece 45 is mounted on the supporting frame body 42, when a roll is changed, the roller swing cylinder 44 acts to drive the roller swing frame 43 and the upper shaft supporting roller to swing so as to support the upper universal shaft 34, and the lower shaft supporting roller piece 45 supports the lower universal shaft 35.
The working roll changing device 90 is arranged on the operation side, a full-automatic lateral moving type roll changing mode is adopted on the operation side, the working roll changing device 90 comprises a moving vehicle 91, a lateral moving vehicle 93 and a push-pull vehicle 92, the lateral moving vehicle 93 and the push-pull vehicle 92 are movably arranged on the moving vehicle 91, the lateral moving vehicle 93 is used for enabling a working roll to transversely move, and the push-pull vehicle 92 is used for dragging or pushing the working roll into a memorial archway. Specifically, the moving vehicle 91 is driven by a reduction motor and can be locked by a hydraulic locking mechanism 94 at the roll changing position of the working roll. The push-pull cart 92 is driven by a reduction motor and guided by a rack-and-pinion mechanism to push a new work roll in or pull an old work roll out of the housing assembly 10. The side shift car 93 is driven by a speed reduction motor, and the transposition of the new working roll and the old working roll can be realized. In this embodiment, after the old work rolls are pulled to the side shift car 93 by the push-pull car 92, the speed reduction motor is used to realize the lateral movement of the work rolls. The push-pull cart 92 is stopped at the end of the moving cart 91 in a standby state, and when the roll replacement is needed, the push-pull cart 92 is started to the side shift cart 93 through the speed reduction motor, and the old working roll is pulled out of the memorial archway. The locking mechanism 94 is installed on the civil engineering foundation and driven by a hydraulic cylinder, and can lock the moving vehicle 91 when the working rolls are changed. In addition, the supporting roll changing device 80 is installed on a civil engineering foundation, a movable cover plate 81 is arranged above a hook at the end of the roll changing oil cylinder, and when the supporting roll is pulled out, the movable cover plate 81 is synchronously pulled open without manual hoisting, so that the roll changing time is reduced.
The leveler of the present invention is provided with a rolling line elevation adjusting device 70, which can adjust the up-and-down position of the roll when the roll is changed or worn. The hydraulic driving unit of the rolling line elevation adjusting device 70 is a push-pull hydraulic cylinder 74, the locking mechanism 75 is arranged on a piston rod of the push-pull hydraulic cylinder 74, and the push-pull hydraulic cylinder 74 can be locked by the locking mechanism 75. The rolling line elevation adjusting device 70 further comprises a wedge plate 72, an upper support plate 71 and a lower support plate 73, wherein the front end of the wedge plate 72 is located between the lower support plate 73 and the upper support plate 71, and the rear end of the wedge plate 72 is connected with a piston rod of a push-pull hydraulic cylinder 74 and can move back and forth under the action of the piston rod to adjust the elevation of the rolling roll. In this embodiment, the rolling line elevation adjusting device 70 is installed at the bottom of the window of the housing assembly 10, and the push-pull hydraulic cylinder 74 is installed on the civil engineering foundation through a base for providing the driving force for the roll lifting. The inclined wedge plate 72 is connected with the push-pull hydraulic cylinder 74 through a hinge shaft, the lower supporting plate 73 is installed at the bottom of a window of the memorial archway assembly 10 through a spigot, the inclined wedge plate 72 is placed on the lower supporting plate 73, the upper supporting plate 71 is placed on the inclined wedge plate 72, and lifting can be achieved under the driving of the inclined wedge plate 72, so that the lower supporting roller 64 and the lower working roller 63 are driven to lift, and the elevation of the roller surface is adjusted. The cam 72 is driven by a push-pull hydraulic cylinder 74. when the roll is set to the desired position, the push-pull hydraulic cylinder 74 can be locked by a locking mechanism 75. When the elevation of the roller needs to be adjusted, the locking device needs to be loosened; when the elevation of the roller surface is adjusted, the piston rod of the push-pull hydraulic cylinder 74 is locked by the locking device, so that the inclined wedge plate 72 can be prevented from sliding. The structure has simple design, can balance the horizontal force generated in the rolling process, and is favorable for improving the reliability of the rolling line elevation adjusting device 70.
In conclusion, in the ultrahigh-strength steel four-roller temper mill provided by the embodiment of the invention, the roller system configuration of the small-diameter working roller and the large-diameter supporting roller can effectively reduce the rolling force, save the energy consumption and investment of a unit, effectively improve the comprehensive rigidity of the temper mill, and is beneficial to improving the plate shape in the ultrahigh-strength steel temper mill; by arranging the split working roll bending device, the temper mill has large roll bending force, and the plate shape of the ultrahigh-strength steel can be effectively improved; meanwhile, the assembly is of an E-shaped structure, so that the assembly has a large opening degree, the ultra-high-strength steel is facilitated to pass through the belt, and the operation rate of a unit is improved; the double-working-roll transmission device is adopted to directly transmit the rolling moment to the ultrahigh-strength strip steel, so that the defects of slippage between roll systems of the traditional temper mill and limited transmission moment are overcome, and the rolling moment can be effectively transmitted; the working roll changing device is adopted to realize full-automatic lateral movement type roll changing on the operation side, so that the operation efficiency of the temper mill is improved, and the manual work intensity is reduced; the hydraulic drive type rolling line elevation adjusting device is simple in structure, and the reliability of the rolling line elevation adjusting device is improved.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a four roller levelling machines of super high strength steel which characterized in that: comprises that
The roll system device comprises an upper working roll and a lower working roll with small diameters, and an upper supporting roll and a lower supporting roll with large diameters, wherein the upper working roll and the lower working roll can be staggered with each other;
the working roll bending devices are respectively positioned on the operation side and the transmission side and respectively comprise a negative bending component for applying negative bending roll force to the working roll and a positive bending component for applying positive bending roll force to the working roll, and the negative bending component and the positive bending component are assembled to form an E-shaped structure;
the double-working-roll transmission device comprises two driving units, an upper universal shaft and a lower universal shaft, wherein the two driving units are respectively connected with the upper working roll and the lower working roll through the two universal shafts so as to transmit rolling torque;
the working roll changing device is positioned on the operation side and used for changing the working roll;
the rolling line elevation adjusting device comprises a hydraulic driving unit and a locking mechanism used for locking the hydraulic driving unit.
2. The four-roller leveler of ultra-high strength steel as set forth in claim 1, wherein: the diameter of the working roller is less than phi 475mm, and the diameter of the supporting roller is greater than phi 1150 mm.
3. The four-roller leveler of ultra-high strength steel as set forth in claim 1, wherein: a long pin groove and a short pin groove are formed in a bearing seat of the upper working roll, and a bolt is arranged on a bearing seat of the lower working roll; or a bearing seat of the lower working roll is provided with a long pin groove and a short pin groove, and a bearing seat of the upper working roll is provided with a bolt; during normal rolling, the inserted pin is inserted into the long pin groove; when the working roll is changed, the inserted pin is inserted into the short pin groove.
4. The four-roller leveler of ultra-high strength steel as set forth in claim 1, wherein: the negative bending assembly comprises a negative bending balance integrated block, a negative bending cylinder and a supporting roller balance cylinder, and the negative bending cylinder and the supporting roller balance cylinder are arranged on the negative bending balance integrated block; the positive bending assembly comprises a positive bending integrated block and a positive bending cylinder, and the positive bending cylinder is installed on the positive bending integrated block.
5. The four-roller leveler of ultra-high strength steel as set forth in claim 1, wherein: the working roll bending device is located on the operation side and the working roll bending device located on the transmission side are connected through a working roll changing track, a sliding groove and a locking plate are arranged on the working roll bending device located on the operation side, the rear end of the locking plate is connected with a locking oil cylinder, and a universal shaft supporting device used for supporting an upper universal shaft and a lower universal shaft is mounted on the working roll bending device located on the transmission side.
6. The four-roller leveler of ultra-high strength steel according to claim 5, wherein: universal shaft strutting arrangement is including supporting support body, upper shaft support gyro wheel spare, gyro wheel swing span, gyro wheel swing jar and lower shaft support gyro wheel spare, it sets up on the work roll bending roll device of transmission side to support the support body, the front end of gyro wheel swing span articulates on supporting the support body, upper shaft support gyro wheel spare sets up on the gyro wheel swing span, gyro wheel swing jar fixed mounting is on supporting the support body and the output is articulated with the rear end of gyro wheel swing span, lower shaft support gyro wheel spare is installed on supporting the support body, during the roll change, gyro wheel swing jar action drives the gyro wheel swing span and the universal shaft of upper shaft support gyro wheel swing in order to support the top, the universal shaft of lower shaft support gyro wheel spare support below.
7. The four-roller leveler of ultra-high strength steel as set forth in claim 1, wherein: and the two driving units of the double-working-roller transmission device are connected with the two universal shafts through an integrated speed reducing unit.
8. The four-roller leveler of ultra-high strength steel as set forth in claim 1, wherein: the working roll replacing device comprises a moving vehicle, a side moving vehicle and a push-pull vehicle, wherein the side moving vehicle and the push-pull vehicle are movably arranged on the moving vehicle, the side moving vehicle is used for enabling the working roll to transversely move, and the push-pull vehicle is used for dragging out or pushing the working roll into the memorial archway.
9. The four-roller leveler of ultra-high strength steel as set forth in claim 1, wherein: the hydraulic driving unit of the rolling line elevation adjusting device is a push-pull hydraulic cylinder, the locking mechanism is arranged on a piston rod of the push-pull hydraulic cylinder, and the push-pull hydraulic cylinder can be locked by the locking mechanism.
10. The four-roller leveler of ultra-high strength steel of claim 9, wherein: the rolling line elevation adjusting device further comprises a wedge plate, an upper supporting plate and a lower supporting plate, the front end of the wedge plate is located between the lower supporting plate and the upper supporting plate, and the rear end of the wedge plate is connected with a piston rod of the push-pull hydraulic cylinder and can move back and forth under the action of the piston rod to adjust the elevation of the roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110450367.3A CN113118242A (en) | 2021-04-25 | 2021-04-25 | Four roller levelling machines of super high strength steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110450367.3A CN113118242A (en) | 2021-04-25 | 2021-04-25 | Four roller levelling machines of super high strength steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113118242A true CN113118242A (en) | 2021-07-16 |
Family
ID=76779836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110450367.3A Pending CN113118242A (en) | 2021-04-25 | 2021-04-25 | Four roller levelling machines of super high strength steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113118242A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3318124A (en) * | 1964-12-10 | 1967-05-09 | Westinghouse Electric Corp | Workpiece shape control |
| US20020053230A1 (en) * | 1998-02-27 | 2002-05-09 | Nippon Steel Corporation | Strip rolling method and strip rolling mill |
| CN2698479Y (en) * | 2003-11-12 | 2005-05-11 | 一重集团大连设计研究院 | Working roll bidirectional movement type four rolls cold rolling machine |
| CN1843645A (en) * | 2006-03-07 | 2006-10-11 | 中冶赛迪工程技术股份有限公司 | Leveling machine |
| CN101733285A (en) * | 2008-11-05 | 2010-06-16 | 中冶赛迪工程技术股份有限公司 | Temper mill with roll bending and shifting functions |
| CN201815567U (en) * | 2010-10-28 | 2011-05-04 | 宝钢工程技术集团有限公司 | Four-roller temper mill with small rolling force in continuous annealing wire |
| CN205732274U (en) * | 2016-02-05 | 2016-11-30 | 山西工程职业技术学院 | Teaching single stand four-roller reversible cold rolling milling train |
| CN206184918U (en) * | 2016-10-28 | 2017-05-24 | 达涅利冶金设备（中国）有限公司 | Hot rolling finishing mill main shaft cohesion device |
| CN206997358U (en) * | 2017-05-26 | 2018-02-13 | 中色科技股份有限公司 | Four-roller independent transmission main transmission structure of multi-metal cold compound rolling mill |
| CN209631807U (en) * | 2019-01-08 | 2019-11-15 | 广东含元工业技术有限公司 | A kind of adjustable milling train of in-line arrangement convexity |
| CN214683589U (en) * | 2021-04-25 | 2021-11-12 | 中冶赛迪工程技术股份有限公司 | Leveling machine for molding ultrahigh-strength steel |
-
2021
- 2021-04-25 CN CN202110450367.3A patent/CN113118242A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3318124A (en) * | 1964-12-10 | 1967-05-09 | Westinghouse Electric Corp | Workpiece shape control |
| US20020053230A1 (en) * | 1998-02-27 | 2002-05-09 | Nippon Steel Corporation | Strip rolling method and strip rolling mill |
| CN2698479Y (en) * | 2003-11-12 | 2005-05-11 | 一重集团大连设计研究院 | Working roll bidirectional movement type four rolls cold rolling machine |
| CN1843645A (en) * | 2006-03-07 | 2006-10-11 | 中冶赛迪工程技术股份有限公司 | Leveling machine |
| CN101733285A (en) * | 2008-11-05 | 2010-06-16 | 中冶赛迪工程技术股份有限公司 | Temper mill with roll bending and shifting functions |
| CN201815567U (en) * | 2010-10-28 | 2011-05-04 | 宝钢工程技术集团有限公司 | Four-roller temper mill with small rolling force in continuous annealing wire |
| CN205732274U (en) * | 2016-02-05 | 2016-11-30 | 山西工程职业技术学院 | Teaching single stand four-roller reversible cold rolling milling train |
| CN206184918U (en) * | 2016-10-28 | 2017-05-24 | 达涅利冶金设备（中国）有限公司 | Hot rolling finishing mill main shaft cohesion device |
| CN206997358U (en) * | 2017-05-26 | 2018-02-13 | 中色科技股份有限公司 | Four-roller independent transmission main transmission structure of multi-metal cold compound rolling mill |
| CN209631807U (en) * | 2019-01-08 | 2019-11-15 | 广东含元工业技术有限公司 | A kind of adjustable milling train of in-line arrangement convexity |
| CN214683589U (en) * | 2021-04-25 | 2021-11-12 | 中冶赛迪工程技术股份有限公司 | Leveling machine for molding ultrahigh-strength steel |
Non-Patent Citations (3)
| Title |
|---|
| 兰利亚等: "《铜及铜合金精密带材生产技术》", 北京：冶金工业出版社，第1版 * |
| 张赓郁等: "高强钢四辊平整机弯窜结构设计分析", 《冶金设备》 * |
| 章文杰: "冷轧平整板形控制工艺探讨", 《甘肃冶金》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102248029B (en) | Pre-straightener for medium and thick plates | |
| CN101549373A (en) | Horizontally down-adjusted three-roll plate bending machine | |
| CN214683589U (en) | Leveling machine for molding ultrahigh-strength steel | |
| CN107442569A (en) | A kind of eighteen-high mill for rolling metal strip | |
| CN202087634U (en) | Medium plate prestraightening machine | |
| CN111438190A (en) | Plate type wedge cross rolling mill | |
| CN107745020B (en) | Hydraulic system of four-roller corrugated plate bending machine | |
| CN2830355Y (en) | Discharge bogie for roller bearing seat | |
| CN101011708A (en) | Quick replacing device and method for horizontal rolling mill transmission shaft of front-back-hanging vertical rolling mill | |
| CN202316674U (en) | Compaction jacking device for T-type steel hydraulic straightening equipment | |
| CN113118242A (en) | Four roller levelling machines of super high strength steel | |
| CN113385541A (en) | Energy-saving continuous casting and rolling pendulum shear for thin slab | |
| CN2379231Y (en) | Hydraulic type three roller machine for bending metal sheet | |
| CN215696779U (en) | Energy-saving continuous casting and rolling pendulum shear for thin slab | |
| CN113976795B (en) | Horizontal die-dividing mechanical horizontal forging machine | |
| CN201410519Y (en) | Horizontal downward-adjusting three-roller plate bending machine | |
| CN202316557U (en) | Locking mechanism of online guide plate replacing device of puncher | |
| CN2917854Y (en) | Major diameter steel pipe and section steel bending roll machine | |
| CN206139674U (en) | Nine roller deformed steel of large -scale double bracing of multipurpose, section straightener | |
| CN114130830A (en) | Roll changing device of horizontal and vertical rolling mill | |
| CN210045802U (en) | Corrugated steel plate arc forming machine | |
| CN107755479B (en) | Split four-roller corrugated plate bending machine | |
| CN111054758B (en) | Locking device for main machine frame of pipe mill | |
| CN201049364Y (en) | Six-roller type lapping machine | |
| CN1978084A (en) | Automatic guide-board in-out apparatus of roller-type split wedge transverse miller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210716 |
|
| RJ01 | Rejection of invention patent application after publication |