CN103447293A - Wire mill and method for adjusting roll collar gaps thereof - Google Patents
Wire mill and method for adjusting roll collar gaps thereof Download PDFInfo
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- CN103447293A CN103447293A CN2012101804699A CN201210180469A CN103447293A CN 103447293 A CN103447293 A CN 103447293A CN 2012101804699 A CN2012101804699 A CN 2012101804699A CN 201210180469 A CN201210180469 A CN 201210180469A CN 103447293 A CN103447293 A CN 103447293A
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Abstract
The invention discloses a wire mill with automatically adjustable roll collar gaps and a method for adjusting the roll collar gaps of the wire mill. The wire mill comprises a roll box, a cone box, hydraulic cylinders, displacement sensors and a controller. Two roll shafts are arranged on the roll box, and roll collars are mounted on the two roll shafts. The method includes that piston rods of the hydraulic cylinders are connected with bearing blocks for supporting the roll shafts, and actuating distances of the piston rods of the hydraulic cylinders are measured by the displacement sensors on the hydraulic cylinders and are transmitted to the controller; the controller determines current roll collar gaps by the aid of the actuating distances, compares the current roll collar gaps to set target roll collar gaps to determine first roll collar gap adjustment quantities and controls movement of the piston rods of the hydraulic cylinders according to the first roll collar gap adjustment quantities, so that the roll collar gaps can be adjusted. The wire mill and the method have the advantages that the roll collar gaps can be bidirectionally adjusted in real time, so that the output dimensional stability of rolled pieces can be guaranteed, and wear compensation can be stably performed on roll collars; the structure of the wire mill is simplified, and the manufacturing cost and the equipment maintenance amount are low.
Description
Technical field
The present invention relates to the 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 that is specifically designed to rolled wire, wire rod and high speed vertical bar, current modern continous way bar wire rod rolling mill generally is comprised of 18～28 rolling mills, be divided into roughing unit, 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 many rolling mills.Be provided with on every rolling mill and be oppositely arranged and middle stay gapped collars to complete the rolling to rolled piece.The product of different size, to the distance between collars, the 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, therefore in the operation of rolling, need the pair roller czermak space constantly to be adjusted to reach the production requirement of product.Milling train adopts the driving shaft of collars is arranged on capacity eccentric bearing at present, when the collars gap does not meet the production requirement, milling train is only adjusted by 100 pairs of capacity eccentric bearing phase places of manual wrench 101 adjusting screw during steel, made the collars gap meet the production requirement, as shown in Figure 1.The direction adjustment that can only reduce towards two collars spacings while due to leading screw 100, adjusting capacity eccentric bearing, limited when the collars gap need to increase, and can only when milling train is not worked, carry out manual adjustments while adjusting the collars gap, production efficiency is lower.And the outlet size that can not guarantee rolled piece when supplied materials size and temperature fluctuation is stable, can't carry out in real time the wear-compensating of collars simultaneously.
As from the foregoing, there is a kind of bidirectional modulation that can realize the collars gap, and the real-time dancer rools czermak space of energy, make the outlet size of rolled piece stable, carry out reposefully the needs of the rod-rolling mill of collars wear-compensating.
Summary of the invention
The invention provides a kind of real time bidirectional adjusting that can realize the collars gap, so that the outlet size of rolled piece is stable, carry out reposefully the rod-rolling mill of collars wear-compensating and the control method in collars gap thereof.
According to an aspect of the present invention, provide a kind of rod-rolling mill.This rod-rolling mill comprises the roller case and is provided with the cone case of transmission device, be provided with bearing block and two roll shafts that are connected with described cone case inner driver in described roller case, described two roll shafts support by corresponding bearing block respectively, it is characterized in that, further comprise:
Be arranged on respectively two collars on described two roll shafts, between described two collars, leave adjustable collars gap;
The first hydraulic cylinder, its piston rod is connected with the bearing block of described one of them roll shaft of support, in order to the dancer rools czermak space;
The first displacement transducer, be arranged on the first hydraulic cylinder, in order to measure the start distance of the first hydraulic cylinder piston rod, and described start distance flowed to controller;
Controller, with the first hydraulic cylinder, be connected, utilize described start distance to determine current collars gap, calculate the first collars gap adjustment amount according to described current collars gap and predefined target roll czermak space, control the motion of 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 and default rolled piece cross dimensions relatively to determine second roller czermak space adjustment amount.
Further, described rod-rolling mill also comprises:
The second hydraulic cylinder, its piston rod is connected with the bearing block of described another roll shaft of support, and described the second hydraulic cylinder is connected with described controller, in order to regulate the collars gap under the control of described controller;
The second displacement sensor, be arranged on second hydraulic cylinder, in order to the start distance of measuring the second hydraulic cylinder piston rod and flow to controller.
Described controller pro rata distributes the first collars gap adjustment amount to the first hydraulic cylinder and the second hydraulic cylinder, the adjustment amount that two hydraulic cylinders distribute according to controller is controlled respectively corresponding piston rod and is driven connected bearing block motion, to regulate the collars gap between described two collars.
Described controller pro rata distributes second roller czermak space adjustment amount to the first hydraulic cylinder and the second hydraulic cylinder, the adjustment amount that two hydraulic cylinders distribute according to controller is controlled respectively corresponding piston rod and is driven connected bearing block motion, 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 that drives driven shaft, described driven shaft drives 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, arrange 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 the roller case as a roll shaft that supports collars, one end of described driven shaft is connected in gear driving pair, the other end of described driven shaft extends to the roller case as another roll shaft that supports collars, and the spacing of described collars and gear driving pair middle gear interlock spacing are in direct ratio.
Further, the spacing of described collars and gear driving pair middle gear interlock spacing ratio are 3:1-6:1.
Described displacement transducer is magnetostrictive displacement sensor.
According to a further aspect in the invention, a kind of method for the collars gap of regulating rod-rolling mill is provided, described rod-rolling mill comprises the roller case and is provided with the cone case of transmission device, be provided with bearing block and two roll shafts that are connected with described cone case inner driver in described roller case, described two roll shafts support by corresponding bearing block respectively, each in two roll shafts is equipped with a collars, and leaves adjustable collars gap between two collars, and the method comprises:
The piston rod of hydraulic cylinder is fixedly connected with the bearing block with roller case inner support roll shaft,
Utilization is arranged at the start distance of the piston rod of the displacement sensor hydraulic cylinder on hydraulic cylinder, and described start distance is flowed to controller;
By controller, utilize described start distance to determine current collars gap, and determine the first collars gap adjustment amount according to the target roll czermak space of described current collars gap and setting, 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.
Utilize caliper measure in real time current rolled piece cross dimensions and measuring-signal is sent to controller, controller is by comparing current rolled piece cross dimensions and default rolled piece cross dimensions to determine second roller czermak space adjustment amount.
Described hydraulic cylinder is one, and the piston rod of described hydraulic cylinder is fixedly connected with the bearing block that supports 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 that supports two roll shafts respectively.
Described controller is determined 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 predefined target roll czermak space, and the first collars gap adjustment amount is pro rata distributed to two hydraulic cylinders, the adjustment amount that two hydraulic cylinders distribute according to controller is controlled respectively the bearing block motion that corresponding piston rod drives connected support roll shaft, to regulate the collars gap between described two collars.
Described controller pro rata distributes second roller czermak space adjustment amount to the first hydraulic cylinder and the second hydraulic cylinder, the adjustment amount that two hydraulic cylinders distribute according to controller is controlled respectively corresponding piston rod and is driven connected bearing block motion, to regulate the collars gap between described two collars.
The degree of regulation in described collars gap is 1 ~ 25 micron.
It is 2 ~ 16ms that the control cycle of dancer rools czermak space is take in the motion that described controller is controlled the piston rod of described hydraulic cylinder according to the first collars gap adjustment amount.
Described controller is according to the measuring-signal that receives 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 second roller czermak space adjustment amount cycle that described collars gap is regulated.
As seen from the above technical solution, be provided with the Hydrauservo System that hydraulic cylinder, displacement transducer and controller form in the present invention.When the collars gap between collars changes, without stopping milling train work, the piston rod of hydraulic cylinder just can drive the bearing block that supports roll shaft carry out upper and lower to high accuracy and high-speed spacing adjustment, thereby realize that the real time bidirectional in gap between collars regulates.The outlet size that just can guarantee rolled piece when supplied materials fluctuates is stable, can continuously and smoothly carry out the collars wear-compensating simultaneously.Further, because final drive shaft and direct extension of driven shaft of rod-rolling mill cone case are saved a pair of roll shaft as two roll shafts than existing product, therefore simplify the roller box structure, reduced manufacturing cost, reduced the maintenance of equipment.
The accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described.Apparently, the accompanying drawing in below describing is only some embodiments of the present invention, for those of ordinary skills, can also obtain according to these accompanying drawing illustrated embodiments other embodiment and accompanying drawing thereof.
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 in the present invention the piston rod of hydraulic cylinder and the syndeton schematic diagram between roll shaft in the first embodiment;
Fig. 4 shows in the present invention the transmission structures schematic diagram of rod-rolling mill in the first embodiment;
The transmission structures schematic diagram that Fig. 5 shows in the present invention wire mill roller box in the first embodiment after simplifying;
Fig. 6 shows in the present invention the structural representation of rod-rolling mill in the second embodiment;
Fig. 7 shows in the present invention in the second embodiment structural representation between the piston rod of hydraulic cylinder and roll shaft.
The specific embodiment
For making purpose of the present invention, technical scheme and advantage clearer, referring to accompanying drawing and enumerate embodiment, 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 the cone case 21 that is provided with transmission device 15.Roller case 1 is provided with bearing block 23,24 and two roll shafts 7,8 that are connected with cone case 21 inner drivers 15. Bearing block 23,24 is installed on the installing plate 22 in roller case 1, and roll shaft 7 supports by bearing block 23, and roll shaft 8 supports by bearing block 24.Be separately installed with on two roll shafts between the first collars 11 and 16, two collars 11 of the second collars 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 form.The first hydraulic cylinder 12 is connected the bearing block 24 of support roll shaft 8 (or with) with the bearing block 23 that supports roll shaft 7.Particularly, the piston rod 18 of the first hydraulic cylinder 12 is fixedly connected with the bearing block 23 that supports roll shaft 7, as shown in Figure 3.The 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, utilize the start distance of the piston rod 18 of the first hydraulic cylinder 12 to determine current collars gap, current collars gap and predefined target roll czermak space are calculated to the first collars gap adjustment amount, according to the first collars gap adjustment amount, control the first hydraulic cylinder 12 piston rod 18 move up or down to regulate two collars gaps between collars.
In the present invention, roll shaft 7,8 is the bolster with bearing, roller shell and sealing ring etc.On two roll shafts 7,8, collars is installed separately.Particularly, two collars are fixedly mounted on respectively on the bearing in roll shaft 7,8, and two bearings are arranged on respectively on two bearing blocks.Visible, roll shaft 7 is supported by bearing block 23, and roll shaft 8 is supported by bearing block 24.Therefore, the adjusting between the collars gap realizes by the bearing block 23,24 of adjustable supporting roll axle 7,8.In the present embodiment.The adjusting in collars gap promotes or pulls the bearing block of one of them roll shaft to realize by the piston rod of the first hydraulic cylinder 12.
Rod-rolling mill also is provided with the caliper 14 for measuring the rolled piece cross dimensions in the place of rolled piece outlet.Caliper 14 is connected with controller 13, and measuring-signal is flowed to controller 13, and controller 13 utilizes measuring-signal and default rolled piece cross dimensions relatively to determine second roller czermak space adjustment amount.Controller is controlled the motion of piston rod of hydraulic cylinder to regulate the collars gap between described two collars according to second roller czermak space adjustment amount.
Fig. 4 shows the structural representation for the transmission device of 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 devices 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 can adopt gear to be connected with power shaft 2, 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 drives 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.The first gear driving pair 6 and the second gear driving pair 9 all mesh with the gear of final drive shaft 3.
Fig. 5 shows another structural representation for the transmission device of the embodiment shown in Fig. 2.As shown in Figure 5, an end of final drive shaft 3 is connected with power shaft 2.Wherein, final drive shaft 3 can adopt gear to be connected with power shaft 2, also can adopt and be rigidly connected.The other end of final drive shaft 3 extends to the roller case as a roll shaft that supports collars, and an end of driven shaft 4 is connected in gear driving pair 10, and the other end of driven shaft 4 extends to the roller case as another roll shaft that supports collars.Particularly, roll shaft 7 is final drive shaft 3, and roll shaft 8 is driven shaft 4.Setting just can be saved a pair of roll shaft like this, thereby simplifies the roller box structure.In this structure, the spacing of collars and gear driving pair 10 middle gear interlock spacings are in direct ratio, and its ratio value is 3:1-6:1.In the present embodiment, preferably, the spacing of collars and gear driving pair middle gear interlock spacing ratio are 5:1.
Below describe the detailed process that the collars gap of the rod-rolling mill in embodiment illustrated in fig. 2 is adjusted in detail.
When the supplied materials that needs rolling enters the collars gap of the first collars 11 and the second collars 16, the interior target roll czermak space that first is set with of controller 13.The displacement transducer simultaneously be arranged on the first hydraulic cylinder 12 is measured the start distance of the piston rod 18 of hydraulic cylinder, and the start distance measured is flowed to controller 13.Controller 13 utilizes the start distance to determine current collars gap, and the target roll czermak space of current collars gap and setting is determined to the first collars gap adjustment amount, the piston rod of controlling the first hydraulic cylinder 12 according to the first collars gap adjustment amount drives connected bearing block and moves up or down, so that the collars gap between two collars is regulated to the target roll czermak space.
When rolled piece reaches the rolled piece outlet, 14 pairs of current rolled piece cross dimensions of caliper are measured and measuring-signal are sent to controller 13, controller 13, by current rolled piece cross dimensions and default rolled piece cross dimensions are compared and obtain comparative result, is determined second roller czermak space adjustment amount according to comparative result.
Then the piston rod that controller 13 is controlled hydraulic cylinder according to second roller czermak space adjustment amount drives connected bearing block motion, to regulate the collars gap between the first collars 11 and the second collars 16.
Therefore the present invention is when the collars gap between collars changes, without stopping milling train work, the piston rod of the first hydraulic cylinder 12 just can drive the roll shaft that supports collars carry out upper and lower to high accuracy and high-speed spacing adjustment, thereby realize that the real time bidirectional in gap between collars regulates.The outlet size that just can guarantee rolled piece when supplied materials fluctuates is stable, carries out reposefully the collars wear-compensating.Because two roll shafts of rod-rolling mill are final drive shaft 3 and driven shaft 4 directly extends in the roller case, save a pair of roll shaft than existing product, therefore simplified the roller box structure, reduce manufacturing cost, reduce the maintenance of equipment.
Embodiment 2:
In embodiment 2, the structure of rod-rolling mill is substantially similar to the structure in embodiment 1, and its difference is the setting of hydraulic cylinder.Fig. 6 shows in the present invention the structural representation of rod-rolling mill in the second embodiment, 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 on the bearing block 23,24 that supports two roll shafts.Particularly, the piston rod 18 of the first hydraulic cylinder 12 is fixed on the bearing block 23 that supports roll shaft 7, the piston rod 19 of the second hydraulic cylinder 17 is fixed on the bearing block 24 supported on roll shaft 8, as Fig. 7, shows syndeton schematic diagram between the piston rod of two hydraulic cylinders and two roll shafts.Be provided with second displacement sensor (not shown) on second hydraulic cylinder 17, in order to the start distance of measuring the second hydraulic cylinder piston rod 19 and flow to controller.The 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, can adopt transmission device as shown in Figure 4, also can adopt transmission device as shown in Figure 5.Adopt device as shown in Figure 5, can save a pair of collars, thereby simplify the roller box structure.
Below describe the detailed process that the collars gap of the rod-rolling mill in embodiment illustrated in fig. 6 is adjusted in detail.
When the supplied materials that needs rolling enters the collars gap of the first collars 11 and the second collars 16, first be set with the target roll czermak space in controller.Be arranged at displacement transducer on the first hydraulic cylinder 12 and the second hydraulic cylinder 17 simultaneously and respectively the start distance of the piston rod of each hydraulic cylinder measured, and the start distance measured is flowed to controller 13.Controller 13 is determined 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 to the first collars gap adjustment amount, and the first collars gap adjustment amount is pro rata distributed to two hydraulic cylinders, the adjustment amount that two hydraulic cylinders distribute according to controller 13 is controlled respectively corresponding piston rod and is driven connected roll shaft and move up or down, to reach the purpose of regulating gap between two collars.
Wherein, the allocation proportion of the first collars gap adjustment amount can be selected 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 the piston rod band action roller shaft of two hydraulic cylinders carries out symmetric motion, carries out the adjusting in collars gap between two collars.
When rolled piece reaches the rolled piece outlet, utilize caliper 14 measure current rolled piece cross dimensions and measuring-signal is sent to controller 13, controller 13 is by comparing current rolled piece cross dimensions and default rolled piece cross dimensions to determine second roller czermak space adjustment amount.Controller 13 pro rata distributes second roller czermak space adjustment amount to two hydraulic cylinders, the adjustment amount that two hydraulic cylinders distribute according to controller 13 is controlled respectively corresponding piston rod and is driven connected roll shaft and move up or down, to reach the purpose of regulating collars gap between two collars.
The following describes rod-rolling mill and regulate the method in collars gap between collars.
Wire rod can cause wearing and tearing in various degree to collars in the operation of rolling, therefore in the wire rod operation of rolling, needs the collars gap between collars is adjusted in real time.
(I): while on a roll shaft in rod-rolling mill, being connected with hydraulic cylinder, the method that rod-rolling mill is regulated the collars gap of rod-rolling mill is:
When supplied materials enters the collars gap between two collars, the start distance of the piston rod of first displacement sensor the first hydraulic cylinder on the first hydraulic cylinder, and the start distance is flowed to controller;
By controller, utilize the start distance to determine current collars gap, and determine the first collars gap adjustment amount according to the target roll czermak space of current collars gap and setting, the piston rod of controlling the first hydraulic cylinder according to the first collars gap adjustment amount drives a connected bearing block that supports roll shaft and moves up or down, to realize the adjusting in collars gap between two collars.
In order to understand in real time controller 13, utilize hydraulic cylinder to regulate the adjusting result in collars gap between two collars, in the rolled piece exit, caliper 14 is set.Utilize caliper 14 measure current rolled piece cross dimensions and measuring-signal is sent to controller 13, controller 13 is by comparing current rolled piece cross dimensions and default rolled piece cross dimensions to determine second roller czermak space adjustment amount.Controller 13 is controlled the piston rod of the first hydraulic cylinder the collars gap between two collars is regulated according to second roller czermak space adjustment amount.
(II): while on two roll shafts in rod-rolling mill, all being connected with hydraulic cylinder, the method that rod-rolling mill is regulated the collars gap of rod-rolling mill is:
The method that the rod-rolling mill that is provided with two hydraulic cylinders is regulated the collars gap of rod-rolling mill is:
When supplied materials enters the collars gap between two collars, the first displacement transducer on two hydraulic cylinders and second displacement sensor are measured respectively the start distance of the piston rod of the first hydraulic cylinder and the second hydraulic cylinder, and the start of two hydraulic cylinders distance is flowed to respectively to controller 13;
By controller 13, utilize the start distance of two hydraulic cylinders to determine current collars gap, and calculate the first collars gap adjustment amount by described current collars gap and predefined target roll czermak space, and the first collars gap adjustment amount is pro rata distributed to two hydraulic cylinders, the adjustment amount that two hydraulic cylinders distribute according to controller is controlled respectively the bearing block motion that corresponding piston rod drives connected support roll shaft, to regulate the collars gap between described two collars.
Wherein, the allocation proportion of described the 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 is selected 1:1, the piston rod of two hydraulic cylinders drives the bearing block that supports roll shaft and carries out symmetric motion, carries out the adjusting in collars gap between two collars.
For understanding in real time controller 13, utilize two hydraulic cylinders to regulate the adjusting result in collars gap between two collars, in the rolled piece exit, caliper 14 is set.Utilize caliper 14 measure current rolled piece cross dimensions and measuring-signal is sent to controller 13, controller 13 is by comparing current rolled piece cross dimensions and default rolled piece cross dimensions to determine second roller czermak space adjustment amount.The piston rod that controller 13 is controlled two hydraulic cylinders according to second roller czermak space adjustment amount drives connected bearing block motion, 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.It is 2 ~ 16ms that the control cycle of dancer rools czermak space is take in the motion that controller 13 is controlled the piston rod of hydraulic cylinder according to the first collars gap adjustment amount.Controller 13 is according to the measuring-signal that receives the current rolled piece cross dimensions that caliper 14 sends to adjust described setting collars gap, and the cycle that the motion of the piston rod of described hydraulic cylinder is carried out corresponding adjusting according to second roller czermak space adjustment amount pair roller czermak space is 50 ~ 500ms.Can reach ± 0.05mm of degree of regulation to the 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 modification of doing, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a rod-rolling mill, comprise the roller case and be provided with the cone case of transmission device, be provided with two roll shafts that bearing block is connected with transmission device with in described cone case in described roller case, described two roll shafts support by corresponding bearing block respectively, it is characterized in that, further comprise:
Be arranged on respectively two collars on described two roll shafts, between described two collars, leave adjustable collars gap;
The first hydraulic cylinder, its piston rod is connected with the bearing block of described one of them roll shaft of support, in order to the dancer rools czermak space;
The first displacement transducer, be arranged on the first hydraulic cylinder, in order to measure the start distance of the first hydraulic cylinder piston rod, and described start distance flowed to controller;
Controller, with the first hydraulic cylinder, be connected, utilize described start distance to determine current collars gap, calculate the first collars gap adjustment amount according to described current collars gap and predefined target roll czermak space, control the motion of 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, 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 described measuring-signal is flowed to controller, described controller utilizes described measuring-signal and default rolled piece cross dimensions relatively to determine second roller czermak space adjustment amount, and the motion of piston rod of controlling described hydraulic cylinder according to second roller czermak space adjustment amount is to regulate the collars gap between described two collars.
3. rod-rolling mill as claimed in claim 1, is characterized in that, described rod-rolling mill further comprises:
The second hydraulic cylinder, its piston rod is connected with the bearing block of described another roll shaft of support, and described the second hydraulic cylinder is connected with described controller, in order to regulate the collars gap under the control of described controller;
The second displacement sensor, be arranged on second hydraulic cylinder, in order to the start distance of measuring the second hydraulic cylinder piston rod and flow to controller;
Described controller pro rata distributes the first collars gap adjustment amount to the first hydraulic cylinder and the second hydraulic cylinder, the adjustment amount that two hydraulic cylinders distribute according to controller is controlled respectively corresponding piston rod and is driven connected bearing block motion, to regulate the collars gap between described two collars.
4. rod-rolling mill as claimed in claim 1 or 2, it is characterized in that, 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 that drives driven shaft, and described driven shaft drives 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.
5. rod-rolling mill as claimed in claim 1 or 2, is characterized in that, the transmission device in described cone case comprises power shaft, final drive shaft and driven shaft, and described power shaft connecting drive device, arrange 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 the roller case as a roll shaft that supports collars, one end of described driven shaft is connected in gear driving pair, the other end of described driven shaft extends to the roller case as another roll shaft that supports collars, and the spacing of described collars and gear driving pair middle gear interlock spacing are in direct ratio.
6. the method for the collars gap of regulating rod-rolling mill, described rod-rolling mill comprises the roller case and is provided with the cone case of transmission device, be provided with bearing block and two roll shafts that are connected with described cone case inner driver in described roller case, described two roll shafts support by corresponding bearing block respectively, each in two roll shafts is equipped with a collars, and leave adjustable collars gap between two collars, the method comprises:
The piston rod of hydraulic cylinder is fixedly connected with the bearing block of roller case inner support roll shaft,
Utilization is arranged at the start distance of the piston rod of the displacement sensor hydraulic cylinder on hydraulic cylinder, and described start distance is flowed to controller;
By controller, utilize described start distance to determine current collars gap, and determine the first collars gap adjustment amount according to the target roll czermak space of described current collars gap and setting, 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.
7. method as claimed in claim 6 also comprises:
Utilize caliper measure in real time current rolled piece cross dimensions and measuring-signal is sent to controller, controller is by comparing current rolled piece cross dimensions and default rolled piece cross dimensions to determine second roller czermak space adjustment amount.
8. method as claimed in claim 6, 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 that supports two roll shafts respectively.
9. method as claimed in claim 8, it is characterized in that, described controller is determined 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 predefined target roll czermak space, and the first collars gap adjustment amount is pro rata distributed to two hydraulic cylinders, the adjustment amount that two hydraulic cylinders distribute according to controller is controlled respectively corresponding piston rod and is driven connected bearing block motion, to regulate the collars gap between described two collars.
10. method as claimed in claim 6, it is characterized in that, described controller pro rata distributes second roller czermak space adjustment amount to the first hydraulic cylinder and the second hydraulic cylinder, the adjustment amount that two hydraulic cylinders distribute according to controller is controlled respectively corresponding piston rod and is driven connected bearing block motion, to regulate the collars gap between described two collars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210180469.9A CN103447293B (en) | 2012-06-01 | 2012-06-01 | Rod-rolling mill and collars gap adjusting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210180469.9A CN103447293B (en) | 2012-06-01 | 2012-06-01 | Rod-rolling mill and collars gap adjusting method thereof |
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| CN103447293A true CN103447293A (en) | 2013-12-18 |
| CN103447293B CN103447293B (en) | 2016-02-10 |
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| CN (1) | CN103447293B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104001726A (en) * | 2014-06-03 | 2014-08-27 | 江苏甬金金属科技有限公司 | Device for eliminating lateral gap of roll box |
| 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 |
| 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 |
| 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 |
| 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 |
| CN109647902A (en) * | 2018-12-24 | 2019-04-19 | 燕山大学 | A kind of real-time method for obtaining gap between rolling mill bearing and memorial archway |
| 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 |
| CN117102239A (en) * | 2023-08-01 | 2023-11-24 | 杭州富阳立利冷轧有限公司 | Cold rolling mill capable of automatically compensating cold rolling thickness |
| CN110065840B (en) * | 2019-05-28 | 2024-06-11 | 佛山科学技术学院 | Ultrathin strip conveying mechanism with automatically adjustable transmission roller gap |
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| CN202123100U (en) * | 2011-06-16 | 2012-01-25 | 合肥市百胜科技发展股份有限公司 | Intelligent rolling system |
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| US4083213A (en) * | 1976-11-24 | 1978-04-11 | Vladimir Nikolaevich Vydrin | Device for automatic adjustment of the roll gap in a mill stand |
| US4202197A (en) * | 1977-12-23 | 1980-05-13 | Chelyabinsky Politekhnichesky Institut | Device for controlling the thickness of strip stock being rolled |
| US4759485A (en) * | 1985-03-01 | 1988-07-26 | Sms Schloemann-Siemag Ag | Apparatus for advancing strip in rolling mills |
| CN2242142Y (en) * | 1995-11-03 | 1996-12-11 | 首钢总公司 | Gear bracket with vertical section |
| JPH11156412A (en) * | 1997-12-01 | 1999-06-15 | Nkk Corp | Hydraulic rolling reduction type rolling mill |
| US6134935A (en) * | 1998-07-15 | 2000-10-24 | Sms Schloemann-Siemag Aktiengesellschaft | Apparatus and method for determining and setting a stand center and adjusting positions of a roll stand |
| CN201223880Y (en) * | 2008-06-23 | 2009-04-22 | 江阴市减速器有限公司 | Transmission composite speed reducer for backing roll of cold rolling mill |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104001726A (en) * | 2014-06-03 | 2014-08-27 | 江苏甬金金属科技有限公司 | Device for eliminating lateral gap of roll box |
| WO2015184734A1 (en) * | 2014-06-03 | 2015-12-10 | 江苏甬金金属科技有限公司 | Lateral gap eliminating device of roller box |
| 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 |
| 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 |
| 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 |
| CN109647902A (en) * | 2018-12-24 | 2019-04-19 | 燕山大学 | A kind of real-time method for obtaining gap between rolling mill bearing and memorial archway |
| 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 |
| CN110065840B (en) * | 2019-05-28 | 2024-06-11 | 佛山科学技术学院 | Ultrathin strip conveying mechanism with automatically adjustable transmission roller gap |
| 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 |
| CN117102239A (en) * | 2023-08-01 | 2023-11-24 | 杭州富阳立利冷轧有限公司 | Cold rolling mill capable of automatically compensating cold rolling thickness |
| 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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