CN103447293B - Rod-rolling mill and collars gap adjusting method thereof - Google Patents
Rod-rolling mill and collars gap adjusting method thereof Download PDFInfo
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- CN103447293B CN103447293B CN201210180469.9A CN201210180469A CN103447293B CN 103447293 B CN103447293 B CN 103447293B CN 201210180469 A CN201210180469 A CN 201210180469A CN 103447293 B CN103447293 B CN 103447293B
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Abstract
The invention discloses the self-adjustable rod-rolling mill in a kind of collars gap and collars gap adjusting method thereof.Rod-rolling mill comprises roller case and cone case, is provided with two roll shafts, two roll shafts are provided with collars in roller case.Rod-rolling mill also comprises hydraulic cylinder, displacement transducer and controller.The piston rod of hydraulic cylinder is connected with the bearing block supporting roll shaft, utilizes the start distance of the piston rod of the displacement sensor hydraulic cylinder on hydraulic cylinder, and start distance is flowed to controller; Start distance is utilized to determine current collars gap by controller, and the target roll czermak space of current collars gap and setting is compared determine the first collars gap adjustment amount, according to the motion of the piston rod of the first collars gap adjustment amount hydraulic control cylinder, with dancer rools czermak space.The real time bidirectional that the present invention can realize collars gap regulates, and ensures that the outlet size of rolled piece is stable, steadily carry out collars wear-compensating.And there is structure simplification, low cost of manufacture, the advantage that plant maintenance amount is few.
Description
Technical field
The present invention relates to rod-rolling mill technology, particularly the self-adjustable rod-rolling mill in a kind of collars gap and collars gap adjusting method thereof.
Background technology
Rod-rolling mill is the milling train being specifically designed to rolled wire, wire rod and high speed vertical bar, current modern continous way bar wire rod rolling mill is generally made up of 18 ~ 28 rolling mills, be divided into roughing mills, intermediate mill and mm finishing mill unit, mm finishing mill unit is and is divided into pre-finish rolling and mm finishing mill unit, and wherein pre-finish rolling and mm finishing mill unit combine by multi rack milling train.Every rolling mill is provided with and is oppositely arranged and the collars that gap is left in centre completes rolling to rolled piece.The product of different size, to the distance between collars, namely collars gap all have strict requirement (0.1-0.2mm in).Because metallic article can cause wearing and tearing in various degree to collars in the operation of rolling, in the operation of rolling, pair roller czermak space is therefore needed constantly to carry out adjusting to reach the production requirement of product.Current milling train adopts and is arranged on capacity eccentric bearing by the driving shaft of collars, when collars gap does not meet production requirement, by milling train only steel time manually spanner 101 adjusting screw 100 pairs of capacity eccentric bearing phase places adjust, make collars gap meet production requirement, as shown in Figure 1.Due to the direction adjustment that can only reduce towards two collars spacing when leading screw 100 adjusts capacity eccentric bearing, limited when collars gap needs to increase, and manual adjustments can only be carried out when milling train does not work during adjustment collars gap, production efficiency is lower.And can not ensure that the outlet size of rolled piece is stablized when supplied materials size and temperature fluctuation, the wear-compensating of collars cannot be carried out in real time simultaneously.
As from the foregoing, there is a kind of bidirectional modulation that can realize collars gap, and energy dancer rools czermak space in real time, the outlet size of rolled piece is stablized, carries out the needs of the rod-rolling mill of collars wear-compensating reposefully.
Summary of the invention
The invention provides a kind of real time bidirectional that can realize collars gap to regulate, to make the outlet size of rolled piece stablize, carry out the rod-rolling mill of collars wear-compensating and the control method in collars gap thereof reposefully.
According to an aspect of the present invention, a kind of rod-rolling mill is provided.This rod-rolling mill comprises roller case and is provided with the cone case of transmission device, two roll shafts being provided with bearing block in described roller case and being connected with described cone case inner driver, described two roll shafts support respectively by corresponding bearing block, it is characterized in that, comprise further:
Be arranged on two collars on described two roll shafts respectively, between described two collars, leave adjustable collars gap;
First hydraulic cylinder, its piston rod is connected with the bearing block of described one of them roll shaft of support, in order to dancer rools czermak space;
First displacement transducer, is arranged on the first hydraulic cylinder, in order to measure the start distance of the first hydraulic cylinder piston rod, and described start distance is flowed to controller;
Controller, be connected with the first hydraulic cylinder, described start distance is utilized to determine current collars gap, calculate the first collars gap adjustment amount according to described current collars gap and the target roll czermak space preset, control the motion of the piston rod of described hydraulic cylinder according to the first collars gap adjustment amount to regulate the collars gap between described two collars.
Described rod-rolling mill also comprises:
For measuring the caliper of rolled piece cross dimensions, described caliper is connected with described controller, and described measuring-signal is flowed to controller, described controller utilizes described measuring-signal to compare with the rolled piece cross dimensions preset and determines the second collars gap adjustment amount.
Further, described rod-rolling mill also comprises:
Second hydraulic cylinder, its piston rod is connected with the bearing block of described another roll shaft of support, and described second hydraulic cylinder is connected with described controller, in order to regulate collars gap under the control of described controller;
Second displacement sensor, is arranged on second hydraulic cylinder, in order to measure the start distance of the second hydraulic cylinder piston rod and to flow to controller.
First collars gap adjustment amount is proportionately distributed to the first hydraulic cylinder and the second hydraulic cylinder by described controller, two hydraulic cylinders control corresponding piston rod respectively according to the adjustment amount that controller distributes and drive connected bearing block to move, to regulate the collars gap between described two collars.
Second collars gap adjustment amount is proportionately distributed to the first hydraulic cylinder and the second hydraulic cylinder by described controller, two hydraulic cylinders control corresponding piston rod respectively according to the adjustment amount that controller distributes and drive connected bearing block to move, to regulate the collars gap between described two collars.
Transmission device in described cone case comprises power shaft, final drive shaft and driven shaft, described power shaft connecting drive device, described final drive shaft is connected with power shaft, one end of described final drive shaft is provided with the first gear driving pair driving driven shaft, described driven shaft is driven by the first gear driving pair, and one in described two roll shafts is connected by gear with final drive shaft; Another in described two roll shafts is connected by gear with driven shaft.
Preferably, the transmission device in described cone case comprises power shaft, final drive shaft and driven shaft, and described power shaft connecting drive device, arranges gear driving pair between described final drive shaft and driven shaft; One end of described final drive shaft is connected with power shaft, the other end of described final drive shaft extends to roller case as the roll shaft supporting collars, one end of described driven shaft is connected to gear driving pair, the other end of described driven shaft extends to roller case as another roll shaft supporting collars, and it is in direct ratio that spacing and the gear driving pair middle gear of described collars are engaged spacing.
Further, the spacing of described collars is engaged spacing ratio with gear driving pair middle gear is 3:1-6:1.
Institute's displacement sensors is magnetostrictive displacement sensor.
According to a further aspect in the invention, provide a kind of for regulating the method in the collars gap of rod-rolling mill, described rod-rolling mill comprises roller case and is provided with the cone case of transmission device, two roll shafts being provided with bearing block in described roller case and being connected with described cone case inner driver, described two roll shafts support respectively by corresponding bearing block, each in two roll shafts is provided with a collars, and between two collars, leave adjustable collars gap, and the method comprises:
The piston rod of hydraulic cylinder is fixedly connected with the bearing block of roller case inner support roll shaft,
Utilize the start distance of the piston rod of the displacement sensor hydraulic cylinder be arranged on hydraulic cylinder, and described start distance is flowed to controller;
Described start distance is utilized to determine current collars gap by controller, and determine the first collars gap adjustment amount according to the target roll czermak space of described current collars gap and setting, the motion of the piston rod of described hydraulic cylinder is controlled, to regulate the collars gap between described two collars according to the first collars gap adjustment amount.
Utilize caliper measure current rolled piece cross dimensions in real time and measuring-signal is sent to controller, controller determines the second collars gap adjustment amount by current rolled piece cross dimensions being compared with the rolled piece cross dimensions preset.
Described hydraulic cylinder is one, and the piston rod of described hydraulic cylinder is fixedly connected with the bearing block supporting one of them roll shaft.
Further, described hydraulic cylinder is two, and the piston rod of described two hydraulic cylinders is fixedly connected with the bearing block of support two roll shafts respectively.
Described controller determines current collars gap according to the start distance of the piston rod of the first hydraulic cylinder and the second hydraulic cylinder, and calculate the first collars gap adjustment amount by described current collars gap and the target roll czermak space preset, and the first collars gap adjustment amount is proportionately distributed to two hydraulic cylinders, two hydraulic cylinders control corresponding piston rod respectively according to the adjustment amount that controller distributes and drive the bearing block of connected support roll shaft to move, to regulate the collars gap between described two collars.
Second collars gap adjustment amount is proportionately distributed to the first hydraulic cylinder and the second hydraulic cylinder by described controller, two hydraulic cylinders control corresponding piston rod respectively according to the adjustment amount that controller distributes and drive connected bearing block to move, to regulate the collars gap between described two collars.
The degree of regulation in described collars gap is 1 ~ 25 micron.
The motion that described controller controls the piston rod of described hydraulic cylinder according to the first collars gap adjustment amount with the control cycle of dancer rools czermak space for 2 ~ 16ms.
Described controller is according to receiving the measuring-signal of the current rolled piece cross dimensions that caliper sends to adjust the collars gap between described two collars, and the motion of the piston rod of described hydraulic cylinder is 50 ~ 500ms according to the second collars gap adjustment amount and to the cycle that described collars gap regulates.
As seen from the above technical solution, the Hydrauservo System of hydraulic cylinder, displacement transducer and controller composition is provided with in the present invention.During collars gap change between collars, without the need to stopping milling train work, the piston rod of hydraulic cylinder just can drive the bearing block supporting roll shaft carry out upper and lower to high accuracy and the adjustment of high-speed spacing, thus the real time bidirectional realizing gap between collars regulates.Just can ensure that when supplied materials fluctuates the outlet size of rolled piece is stablized, continuously and smoothly can carry out collars wear-compensating simultaneously.Further, due to the rod-rolling mill cone final drive shaft of case and driven shaft directly extend as two roll shafts comparatively existing product save a pair roll shaft, because of this simplify roller box structure, reduce manufacturing cost, the maintenance of minimizing equipment.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below.Apparently, the accompanying drawing in below describing is only some embodiments of the present invention, for those of ordinary skills, can also obtain other embodiment and accompanying drawing thereof according to these accompanying drawing illustrated embodiments.
Fig. 1 shows the control method schematic diagram of prior art central roll czermak space;
Fig. 2 shows the structure diagram of rod-rolling mill in the present invention;
Fig. 3 shows the syndeton schematic diagram between the piston rod of hydraulic cylinder in the first embodiment in the present invention and roll shaft;
Fig. 4 shows the transmission structures schematic diagram of rod-rolling mill in the first embodiment in the present invention;
Fig. 5 shows the transmission structures schematic diagram in the present invention in the first embodiment after wire mill roller box simplification;
Fig. 6 shows the structural representation of rod-rolling mill in the second embodiment in the present invention;
Fig. 7 shows structural representation between the piston rod of hydraulic cylinder in the second embodiment in the present invention and roll shaft.
Detailed description of the invention
For making object of the present invention, technical scheme and advantage clearly understand, enumerate embodiment referring to accompanying drawing, the present invention is described in more detail.
Embodiment 1:
Fig. 2 shows the structure diagram of the rod-rolling mill of one embodiment of the present of invention.As shown in Figure 2, rod-rolling mill comprises roller case 1 and is provided with the cone case 21 of transmission device 15.Roller case 1 is provided with bearing block 23, and 24 and two roll shafts 7,8 of being connected with cone case 21 inner driver 15.Bearing block 23,24 are installed on the installing plate 22 in roller case 1, and roll shaft 7 is supported by bearing block 23, and roll shaft 8 is supported by bearing block 24.Two roll shafts are separately installed with between the first collars 11 and the second collars 16, two collars 11 and 16 and leave adjustable collars gap.Rod-rolling mill also comprises the first hydraulic cylinder 12, the hydraulic servo control system that displacement transducer (not shown in FIG.) and controller 13 are formed.First hydraulic cylinder 12 with support the bearing block 23 of roll shaft 7 and be connected (or with support the bearing block 24 of roll shaft 8).Particularly, the piston rod 18 of the first hydraulic cylinder 12 is fixedly connected with the bearing block 23 supporting roll shaft 7, as shown in Figure 3.Displacement transducer (not shown) is arranged on the first hydraulic cylinder 12, in order to measure the start distance of hydraulic cylinder piston rod, and the start distance measured is flowed to controller 13.In the present embodiment, displacement transducer is magnetostrictive displacement sensor.Controller 13 is connected with the first hydraulic cylinder 12, the start distance of the piston rod 18 of the first hydraulic cylinder 12 is utilized to determine current collars gap, current collars gap and the target roll czermak space preset are calculated the first collars gap adjustment amount, controls the collars gap of moving to regulate between two collars up or down of the piston rod 18 of the first hydraulic cylinder 12 according to the first collars gap adjustment amount.
In the present invention, roll shaft 7,8 is the bolster with bearing, roller shell and sealing ring etc.Two roll shafts 7,8 are provided with collars separately.Particularly, two collars are fixedly mounted on roll shaft 7 respectively, and on the bearing in 8, two bearings are arranged on two bearing blocks respectively.Visible, roll shaft 7 is supported by bearing block 23, and roll shaft 8 is supported by bearing block 24.Therefore, namely the adjustment between collars gap is realized by the bearing block 23,24 of adjustable supporting roll axle 7,8.In the present embodiment.The adjustment in collars gap is promoted by the piston rod of the first hydraulic cylinder 12 or is pulled the bearing block of one of them roll shaft to realize.
Rod-rolling mill is also provided with the caliper 14 for measuring rolled piece cross dimensions in the place that rolled piece exports.Caliper 14 is connected with controller 13, and measuring-signal is flowed to controller 13, and controller 13 utilizes measuring-signal to compare determine the second collars gap adjustment amount with the rolled piece cross dimensions preset.Controller according to the motion of the piston rod of the second collars gap adjustment amount hydraulic control cylinder to regulate the collars gap between described two collars.
Fig. 4 shows the structural representation of the transmission device for the embodiment shown in Fig. 2.As shown in Figure 4, the structure of transmission device 15 is: comprise power shaft 2, final drive shaft 3 and driven shaft 4, power shaft 2 connecting drive device 5.Drive unit 5 is arranged at outside cone case 21.The other end of power shaft 2 is connected with final drive shaft 3.Wherein, final drive shaft 3 and power shaft 2 can adopt gear to be connected, and also can adopt and be rigidly connected.The other end of final drive shaft 3 is provided with the first gear driving pair 6, and described driven shaft 4 is driven by the first gear driving pair.One in two roll shafts is connected by the first gear driving pair 6 with final drive shaft 3, and another in two roll shafts is connected by the second gear driving pair 9 with driven shaft 4.First gear driving pair 6 and the second gear driving pair 9 all with the gears meshing of final drive shaft 3.
Fig. 5 shows another structural representation of the transmission device for the embodiment shown in Fig. 2.As shown in Figure 5, one end of final drive shaft 3 is connected with power shaft 2.Wherein, final drive shaft 3 and power shaft 2 can adopt gear to be connected, and also can adopt and be rigidly connected.The other end of final drive shaft 3 extends to roller case as the roll shaft supporting collars, and one end of driven shaft 4 is connected to gear driving pair 10, and the other end of driven shaft 4 extends to roller case as another roll shaft supporting collars.Particularly, roll shaft 7 i.e. final drive shaft 3, and roll shaft 8 i.e. driven shaft 4.Such setting just can save a pair roll shaft, thus simplifies roller box structure.In this structure, it is in direct ratio that spacing and gear driving pair 10 middle gear of collars are engaged spacing, and its ratio value is 3:1-6:1.In the present embodiment, preferably, the spacing of collars is engaged spacing ratio with gear driving pair middle gear is 5:1.
Be described below in detail embodiment illustrated in fig. 2 in rod-rolling mill collars gap adjustment detailed process.
When needing the supplied materials of rolling to enter the collars gap of the first collars 11 and the second collars 16, in controller 13, be first set with target roll czermak space.Be arranged at the start distance of the displacement transducer on the first hydraulic cylinder 12 to the piston rod 18 of hydraulic cylinder to measure simultaneously, and the start distance measured is flowed to controller 13.Controller 13 utilizes start distance to determine current collars gap, and the target roll czermak space of current collars gap and setting is determined the first collars gap adjustment amount, the piston rod controlling the first hydraulic cylinder 12 according to the first collars gap adjustment amount drives connected bearing block to move up or down, regulates to target roll czermak space to make the collars gap between two collars.
When rolled piece reaches rolled piece outlet, caliper 14 is measured current rolled piece cross dimensions and measuring-signal is sent to controller 13, controller 13 obtains comparative result by current rolled piece cross dimensions being compared with the rolled piece cross dimensions preset, and determines the second collars gap adjustment amount according to comparative result.
Then controller 13 drives connected bearing block to move according to the piston rod of the second collars gap adjustment amount hydraulic control cylinder, to regulate the collars gap between the first collars 11 and the second collars 16.
Therefore when the collars gap of the present invention between collars changes, without the need to stopping milling train work, the piston rod of the first hydraulic cylinder 12 just can drive the roll shaft supporting collars carry out upper and lower to high accuracy and the adjustment of high-speed spacing, thus the real time bidirectional realizing gap between collars regulates.Just can ensure that when supplied materials fluctuates the outlet size of rolled piece is stablized, carry out collars wear-compensating reposefully.Two roll shafts due to rod-rolling mill are final drive shaft 3 and driven shaft 4 directly extends in roller case, and comparatively existing product saves a pair roll shaft, because this simplify roller box structure, reducing manufacturing cost, reducing the maintenance of equipment.
Embodiment 2:
Structure basic simlarity in embodiment 2 in the structure of rod-rolling mill and embodiment 1, its difference is the setting of hydraulic cylinder.Fig. 6 shows the structural representation of rod-rolling mill in the second embodiment in the present invention, and as shown in Figure 6, the rod-rolling mill in embodiment 2 also comprises the second hydraulic cylinder 17.The piston rod of two hydraulic cylinders is individually fixed in the bearing block 23 of support two roll shafts, on 24.Particularly, the piston rod 18 of the first hydraulic cylinder 12 is fixed on the bearing block 23 of support roll shaft 7, the piston rod 19 of the second hydraulic cylinder 17 is fixed on the bearing block 24 on support roll shaft 8, as Fig. 7, shows syndeton schematic diagram between the piston rod of two hydraulic cylinders and two roll shafts.Second hydraulic cylinder 17 is provided with second displacement sensor (not shown), in order to measure the start distance of the second hydraulic cylinder piston rod 19 and to flow to controller.Second hydraulic cylinder 17 is connected with controller 13, two hydraulic cylinders common dancer rools czermak space under the control of controller 13.
For the transmission device in the present embodiment, transmission device as shown in Figure 4 can be adopted, also can adopt transmission device as shown in Figure 5.Adopt device as shown in Figure 5, a pair collars can be saved, thus simplify roller box structure.
Be described below in detail embodiment illustrated in fig. 6 in rod-rolling mill collars gap adjustment detailed process.
When needing the supplied materials of rolling to enter the collars gap of the first collars 11 and the second collars 16, in controller, be first set with target roll czermak space.The displacement transducer be simultaneously arranged on the first hydraulic cylinder 12 and the second hydraulic cylinder 17 is measured the start distance of the piston rod of each hydraulic cylinder respectively, and the start distance measured is flowed to controller 13.Controller 13 determines current collars gap according to the start distance of the piston rod of two hydraulic cylinders, and the target roll czermak space of current collars gap and setting is determined the first collars gap adjustment amount, and the first collars gap adjustment amount is proportionately distributed to two hydraulic cylinders, two hydraulic cylinders control corresponding piston rod respectively according to the adjustment amount that controller 13 distributes and drive connected roll shaft to move up or down, to reach the object in gap between adjustment two collars.
Wherein, the allocation proportion of the first collars gap adjustment amount can select 1:1,2:1,3:1 or 4:1.More often select, the ratio of the first collars gap adjustment amount is 1:1, and namely the piston rod band action roller shaft of two hydraulic cylinders carries out symmetric motion, carries out the adjustment in collars gap between two collars.
When rolled piece reaches rolled piece outlet, utilize caliper 14 measure current rolled piece cross dimensions and measuring-signal is sent to controller 13, controller 13 determines the second collars gap adjustment amount by current rolled piece cross dimensions being compared with the rolled piece cross dimensions preset.Second collars gap adjustment amount is proportionately distributed to two hydraulic cylinders by controller 13, two hydraulic cylinders control corresponding piston rod respectively according to the adjustment amount that controller 13 distributes and drive connected roll shaft to move up or down, to reach the object in collars gap between adjustment two collars.
The following describes the method that rod-rolling mill regulates collars gap between collars.
Wire rod can cause wearing and tearing in various degree to collars in the operation of rolling, and the collars gap between therefore needing in the wire rod operation of rolling collars adjusts in real time.
(I): when the roll shaft of in rod-rolling mill is connected with hydraulic cylinder, the method in the collars gap of rod-rolling mill adjustment rod-rolling mill is:
First controller 13 sets target roll czermak space, and the piston rod that controller 13 controls the first hydraulic cylinder drives connected bearing block to move, to regulate collars gap between two collars for target roll czermak space;
When supplied materials enters the collars gap between two collars, the start distance of the piston rod of the first displacement sensor first hydraulic cylinder on the first hydraulic cylinder, and start distance is flowed to controller;
Start distance is utilized to determine current collars gap by controller, and determine the first collars gap adjustment amount according to the target roll czermak space of current collars gap and setting, the piston rod controlling the first hydraulic cylinder according to the first collars gap adjustment amount drives a connected bearing block supporting roll shaft to move up or down, to realize the adjustment in collars gap between two collars.
Utilize hydraulic cylinder to regulate the adjustment result in collars gap between two collars in order to understand controller 13 in real time, caliper 14 is set in rolled piece exit.Utilize caliper 14 measure current rolled piece cross dimensions and measuring-signal is sent to controller 13, controller 13 determines the second collars gap adjustment amount by current rolled piece cross dimensions being compared with the rolled piece cross dimensions preset.The piston rod that controller 13 controls the first hydraulic cylinder according to the second collars gap adjustment amount regulates the collars gap between two collars.
(II): when the roll shaft of two in rod-rolling mill is all connected with hydraulic cylinder, the method in the collars gap of rod-rolling mill adjustment rod-rolling mill is:
The method being provided with the collars gap of the rod-rolling mill adjustment rod-rolling mill of two hydraulic cylinders is:
First controller 13 sets target roll czermak space, and controller 13 controls the piston rod movement of two hydraulic cylinders.The piston rod of two hydraulic cylinders drives the bearing block of connected support roll shaft to move according to the adjustment amount that controller distributes, to regulate collars gap between two collars for target roll czermak space.
When supplied materials enters the collars gap between two collars, the first displacement transducer on two hydraulic cylinders and second displacement sensor measure the start distance of the piston rod of the first hydraulic cylinder and the second hydraulic cylinder respectively, and the start of two hydraulic cylinders distance is flowed to controller 13 respectively;
The start distance of two hydraulic cylinders is utilized to determine current collars gap by controller 13, and calculate the first collars gap adjustment amount by described current collars gap and the target roll czermak space preset, and the first collars gap adjustment amount is proportionately distributed to two hydraulic cylinders, two hydraulic cylinders control corresponding piston rod respectively according to the adjustment amount that controller distributes and drive the bearing block of connected support roll shaft to move, to regulate the collars gap between described two collars.
Wherein, the allocation proportion of described first collars gap adjustment amount can be divided into 1:1,2:1,3:1 or 4:1, when the allocation proportion of the first collars gap adjustment amount selects 1:1, the piston rod of two hydraulic cylinders drives the bearing block supporting roll shaft to carry out symmetric motion, carries out the adjustment in collars gap between two collars.
Utilize two hydraulic cylinders to regulate the adjustment result in collars gap between two collars for understanding controller 13 in real time, caliper 14 is set in rolled piece exit.Utilize caliper 14 measure current rolled piece cross dimensions and measuring-signal is sent to controller 13, controller 13 determines the second collars gap adjustment amount by current rolled piece cross dimensions being compared with the rolled piece cross dimensions preset.The piston rod that controller 13 controls two hydraulic cylinders according to the second collars gap adjustment amount drives connected bearing block to move, to regulate the collars gap between described two collars.
Utilize the method for the dancer rools czermak space in the present invention, the degree of regulation in collars gap reaches 1 ~ 25 micron.Controller 13 according to the motion of the piston rod of the first collars gap adjustment amount hydraulic control cylinder with the control cycle of dancer rools czermak space for 2 ~ 16ms.Controller 13 according to receiving the measuring-signal of current rolled piece cross dimensions that caliper 14 sends to adjust described setting collars gap, the motion of the piston rod of described hydraulic cylinder according to the second collars gap adjustment amount and the cycle that pair roller czermak space carries out corresponding adjustment be 50 ~ 500ms.± 0.05mm can be reached to the degree of regulation of product cross dimensions.
The foregoing is only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (15)
1. a rod-rolling mill, comprise roller case and the cone case being provided with transmission device, the transmission device in described cone case comprises power shaft, final drive shaft and driven shaft, and described power shaft connecting drive device, arranges gear driving pair between described final drive shaft and driven shaft; One end of described final drive shaft is connected with power shaft, the other end of described final drive shaft extends to roller case as the roll shaft supporting collars, one end of described driven shaft is connected to gear driving pair, the other end of described driven shaft extends to roller case as another roll shaft supporting collars, and it is in direct ratio that spacing and the gear driving pair middle gear of described collars are engaged spacing; Be provided with bearing block in described roller case, described two roll shafts support respectively by corresponding bearing block; It is characterized in that, described rod-rolling mill comprises further:
Be arranged on two collars on described two roll shafts respectively, between described two collars, leave adjustable collars gap;
First hydraulic cylinder, its piston rod is connected with the bearing block of described one of them roll shaft of support, in order to dancer rools czermak space;
First displacement transducer, is arranged on the first hydraulic cylinder, in order to measure the start distance of the first hydraulic cylinder piston rod, and described start distance is flowed to controller;
Controller, be connected with the first hydraulic cylinder, described start distance is utilized to determine current collars gap, calculate the first collars gap adjustment amount according to described current collars gap and the target roll czermak space preset, control the motion of the piston rod of described hydraulic cylinder according to the first collars gap adjustment amount to regulate the collars gap between described two collars.
2. rod-rolling mill as claimed in claim 1, it is characterized in that, described rod-rolling mill also comprises:
For measuring the caliper of rolled piece cross dimensions, described caliper is connected with described controller, and measuring-signal is flowed to controller, described controller utilizes described measuring-signal to compare determine the second collars gap adjustment amount with the rolled piece cross dimensions preset, and the motion controlling the piston rod of described hydraulic cylinder according to the second collars gap adjustment amount is to regulate the collars gap between described two collars.
3. rod-rolling mill as claimed in claim 2, it is characterized in that, described rod-rolling mill comprises further:
Second hydraulic cylinder, its piston rod is connected with the bearing block of described another roll shaft of support, and described second hydraulic cylinder is connected with described controller, in order to regulate collars gap under the control of described controller;
Second displacement sensor, is arranged on second hydraulic cylinder, in order to measure the start distance of the second hydraulic cylinder piston rod and to flow to controller.
4. rod-rolling mill as claimed in claim 3, it is characterized in that, second collars gap adjustment amount is proportionately distributed to the first hydraulic cylinder and the second hydraulic cylinder by described controller, two hydraulic cylinders control corresponding piston rod respectively according to the adjustment amount that controller distributes and drive connected bearing block to move, to regulate the collars gap between described two collars.
5. the rod-rolling mill as described in claim 1 or 2 or 3, is characterized in that, the spacing of described collars is engaged spacing ratio with gear driving pair middle gear be 3:1-6:1.
6. the rod-rolling mill as described in claim 1 or 2 or 3, wherein, institute's displacement sensors is magnetostrictive displacement sensor.
7. one kind for regulating the method in the collars gap of rod-rolling mill, described rod-rolling mill comprises roller case and is provided with the cone case of transmission device, transmission device in described cone case comprises power shaft, final drive shaft and driven shaft, described power shaft connecting drive device, arranges gear driving pair between described final drive shaft and driven shaft; One end of described final drive shaft is connected with power shaft, the other end of described final drive shaft extends to roller case as the roll shaft supporting collars, one end of described driven shaft is connected to gear driving pair, the other end of described driven shaft extends to roller case as another roll shaft supporting collars, and it is in direct ratio that spacing and the gear driving pair middle gear of described collars are engaged spacing; Be provided with bearing block in described roller case, described two roll shafts support respectively by corresponding bearing block, and each in two roll shafts is provided with a collars, and between two collars, leave adjustable collars gap, and the method comprises:
The bearing block of the piston rod of hydraulic cylinder with roller case inner support roll shaft is fixedly connected with,
Utilize the start distance of the piston rod of the displacement sensor hydraulic cylinder be arranged on hydraulic cylinder, and described start distance is flowed to controller;
Described start distance is utilized to determine current collars gap by controller, and determine the first collars gap adjustment amount according to the target roll czermak space of described current collars gap and setting, the motion of the piston rod of described hydraulic cylinder is controlled, to regulate the collars gap between described two collars according to the first collars gap adjustment amount.
8. method as claimed in claim 7, also comprises:
Utilize caliper measure current rolled piece cross dimensions in real time and measuring-signal is sent to controller, controller determines the second collars gap adjustment amount by current rolled piece cross dimensions being compared with the rolled piece cross dimensions preset.
9. method as claimed in claim 7 or 8, it is characterized in that, described hydraulic cylinder is one, and the piston rod of described hydraulic cylinder is fixedly connected with the bearing block supporting roll shaft.
10. method as claimed in claim 7 or 8, it is characterized in that, described hydraulic cylinder is two, and the piston rod of described two hydraulic cylinders is fixedly connected with the bearing block of support two roll shafts respectively.
11. methods as claimed in claim 10, it is characterized in that, described controller determines current collars gap according to the start distance of the piston rod of the first hydraulic cylinder and the second hydraulic cylinder, and calculate the first collars gap adjustment amount by described current collars gap and the target roll czermak space preset, and the first collars gap adjustment amount is proportionately distributed to two hydraulic cylinders, two hydraulic cylinders control corresponding piston rod respectively according to the adjustment amount that controller distributes and drive connected bearing block to move, to regulate the collars gap between described two collars.
12. methods as claimed in claim 10, it is characterized in that, second collars gap adjustment amount is proportionately distributed to the first hydraulic cylinder and the second hydraulic cylinder by described controller, two hydraulic cylinders control corresponding piston rod respectively according to the adjustment amount that controller distributes and drive connected bearing block to move, to regulate the collars gap between described two collars.
13. methods as claimed in claim 7 or 8, wherein, the degree of regulation in described collars gap is 1 ~ 25 micron.
14. methods as claimed in claim 11, is characterized in that, the motion that described controller controls the piston rod of described hydraulic cylinder according to the first collars gap adjustment amount with the control cycle of dancer rools czermak space for 2 ~ 16ms.
15. methods as claimed in claim 12, it is characterized in that, described controller is according to receiving the measuring-signal of the current rolled piece cross dimensions that caliper sends to adjust the collars gap between described two collars, and the motion of the piston rod of described hydraulic cylinder is 50 ~ 500ms according to the second collars gap adjustment amount and to the cycle that described collars gap regulates.
Priority Applications (1)
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| CN104001726B (en) * | 2014-06-03 | 2016-03-30 | 江苏甬金金属科技有限公司 | A kind of roller case sideshake cancellation element |
| CN104841695A (en) * | 2015-05-08 | 2015-08-19 | 中国重型机械研究院股份公司 | Method for rolling high-precision alloy steel wire rod |
| CN106734228A (en) * | 2016-12-19 | 2017-05-31 | 苏州唐氏机械制造有限公司 | The controllable pressing roll mechanism of bidirectional trimming |
| CN106583461A (en) * | 2016-12-19 | 2017-04-26 | 苏州唐氏机械制造有限公司 | Fine-adjustable pressing roller mechanism |
| CN106734227A (en) * | 2016-12-19 | 2017-05-31 | 苏州唐氏机械制造有限公司 | Two-way fine-tuning pressing roll mechanism |
| CN109647902B (en) * | 2018-12-24 | 2020-01-14 | 燕山大学 | Method for acquiring gap between rolling mill bearing seat and housing in real time |
| CN110065840A (en) * | 2019-05-28 | 2019-07-30 | 佛山科学技术学院 | A kind of live-roller gap can adjust automatically ultra-thin strip transport mechanism |
| CN110303054A (en) * | 2019-08-06 | 2019-10-08 | 中冶赛迪技术研究中心有限公司 | A kind of mill roll-gap automatic regulating apparatus and its application method |
| CN117102239B (en) * | 2023-08-01 | 2024-02-13 | 杭州富阳立利冷轧有限公司 | Cold rolling mill capable of automatically compensating cold rolling thickness |
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