CN112850362B - Constant tension unreeling control system suitable for application in rotating body - Google Patents
Constant tension unreeling control system suitable for application in rotating body Download PDFInfo
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- CN112850362B CN112850362B CN202011627919.5A CN202011627919A CN112850362B CN 112850362 B CN112850362 B CN 112850362B CN 202011627919 A CN202011627919 A CN 202011627919A CN 112850362 B CN112850362 B CN 112850362B
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- 230000005611 electricity Effects 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 6
- 230000005674 electromagnetic induction Effects 0.000 claims description 4
- 230000009347 mechanical transmission Effects 0.000 claims description 4
- 230000000087 stabilizing effect Effects 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 11
- 230000033001 locomotion Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000001939 inductive effect Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000011265 semifinished product Substances 0.000 description 4
- 230000006698 induction Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
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Abstract
The invention discloses a raw material unreeling constant tension control system for a rotating body, which comprises a generator, a power control unit, an internal operation unit, a power management unit, a storage battery and an external operation unit, wherein the generator, the power control unit, the internal operation unit, the power management unit, the storage battery and the external operation unit are arranged outside, and after the internal operation unit and the external operation unit exchange data through wireless communication, the power control unit realizes unreeling constant tension control by changing the torque output by the generator. According to the invention, the storage battery is charged after the electric energy of the generator is lifted and stabilized by the power management unit, so that when the generator does not generate electricity, the constant-tension unreeling control system can supply power through the storage battery, thereby fundamentally solving the power supply problem of a control object in the rotating body, realizing reasonable utilization of energy and thoroughly solving the problems of tension control and unstable power supply voltage at the initial stage or before starting of the equipment.
Description
Technical Field
The invention relates to the technical field of steel wire rope production, in particular to an unreeling tension control system suitable for being applied to a platform (boat) in a rotating body of stranding and rope forming equipment, and used for unreeling raw materials when the raw materials are unreeled from a spool.
Background
Tension control is particularly critical in the production of wire rope products. Especially for the stranding and rope twisting equipment of the steel wire rope, the stability of the tension of the monofilaments (strands) and the consistency of the tension among the monofilaments (strands) directly influence the quality of the product.
In the production process of the steel wire rope, a pipe strander is widely used for stranding, a basket type rope forming machine is widely used for rope forming equipment, and the equipment is used for forming ropes by rotating the pipe or the bow at a high speed. The semi-finished product of the stranding is monofilament, the semi-finished product of the stranding is single strand, the semi-finished product is wound on the spool, and the spool is placed in a high-speed rotating pipe or a bow during production and pulled out by external equipment to be unwound. The tension of the drawing-out and unwinding is the most important control point, the tension depends on the resistance applied on the semi-finished product winding spool by the equipment, the traditional mode is formed by adopting mechanical friction braking, the reliability is poor, the size of the spool causes inconsistent tension of the pass, and meanwhile, the mechanical friction braking force of each station is difficult to be consistent, and all the problems cause quality defects of the yarn products.
There is a constant lack of a reliable method of controlling the tension of a monofilament or a single strand, the greatest reason being: the control object is positioned inside a pipe or a bow rotating at a high speed, and available control means all use a power supply, so that the power supply is difficult to enter. There are also attempts to perform power transmission with brushes and current collectors, but the control objects are many and are isolated from each other, and the brushes and current collectors can only be individually provided, so the number is large, and the power transmission structure cannot be closed, and in the production process of the wire rope, generated dust is easily attached between the brushes and the current collectors, causing rapid wear of the brushes and the current collectors, and even causing short circuit. Meanwhile, in the process of power receiving, the electric brush always moves up and down due to mechanical vibration, so that the reliability is low, the failure rate is too high, and the electric brush cannot be truly applied. Therefore, a reliable control method for the single filament or single strand tension is an industry problem, and cannot be solved at all times, and is always the biggest quality hidden trouble existing in the industry.
The invention patent number 2013103306404 discloses a mechanical motion control method and a device thereof, which are used for converting mechanical energy of mechanical motion into inductive energy based on electromagnetic induction and storing and outputting or consuming the inductive energy, and when the inductive energy is stored and outputted or consumed, the method for controlling the motion parameters of the machinery by controlling the current during storing and outputting or consuming the inductive energy is used for controlling the tension by the method, and the method is widely applied to other related equipment of non-adjusting rotating internal control objects in the steel wire product industry.
However, the mechanical motion control method of patent 2013103306404 makes it possible to use self-power generation for control when the control object is located inside a pipe or a bow rotating at a high speed, but does not solve the contradiction that the generator and the arithmetic unit as an actuator are not in the same space, specifically as follows:
As a generator of the actuator, the "rotor" is directly or indirectly connected to the moving end of the machine to be controlled, and the output end of the generator is electrically connected to the power control unit. The ' simultaneously ', the ' operation unit is used for calculating and outputting or consuming the current control target value of the induced electricity according to the control target value of the mechanical movement and the electric parameter feedback value of the induced electricity, and outputting the current control target value to the ' power control unit '
Furthermore, "the arithmetic unit includes an I/O port or an upper computer for inputting a mechanical motion control target value and a control instruction, a current control target value for calculating induced electricity from the mechanical motion control target value", it is seen that if the method in this patent is applied to a case where a control object is located inside a pipe or a bow rotating at a high speed, a generator must be provided inside the pipe or the bow rotating at a high speed, to which a power control unit is electrically connected; meanwhile, the operation unit meter and the power control unit are connected by electric signals;
Furthermore, the arithmetic unit needs to receive instructions of control target values and the like mainly from the outside of the pipe or the arch rotating at high speed, and it is seen that the arithmetic unit must be connected with an electric signal to a device placed outside the pipe or the arch rotating at high speed.
It is a difficult problem how to reasonably distribute the space arrangement between the units and establish electrical connection between the inside and outside of the high-speed rotating pipe or arch, so that it is suitable for controlling the control object in the high-speed rotating pipe or arch.
In addition, in patent 2013103306404, the voltage of the induction power generated by the generator is changed, and the voltage is different according to the change of the rotation speed of the control object, so that the induction power is treated well, and is used as a control power source for the system operation, thereby being suitable for the control of the control object in the pipe or the bow rotating at high speed, and being a problem to be solved.
Disclosure of Invention
The invention aims to solve the technical problem that in the twisting rope equipment of a steel wire rope rotating at a high speed in the prior art, the material is suitable for being used in a platform (a boat) in a rotating body of the stranding and rope forming equipment, and the electricity taking of a control system is difficult when raw materials are unreeled from a spool, so that a constant tension unreeled control system suitable for being applied in the rotating body is provided.
In order to solve the technical problems, the invention provides the following technical scheme:
a constant tension unreeling control system suitable for application in a rotating body comprises an in-machine control module arranged in the rotating body and an out-machine control module arranged outside the rotating body;
the built-in control module comprises a generator, a power control unit, a built-in operation unit, a power management unit and a storage battery;
The generator is an electromagnetic generator and comprises a stator and a rotor, wherein an electromagnetic induction coil is wound on the stator, and an electromagnet or an exciting coil is arranged on the rotor; the rotor is directly or indirectly connected with a moving end in the rotating body, and the output end of the generator is respectively and electrically connected with the power control unit and the power management unit;
The built-in operation unit is electrically connected with the power control unit, controls the power control unit and acquires parameters of the generator, such as related information of generator voltage, rotating speed and the like.
The power management unit is used for modulating the induced electricity of the generator into required direct-current voltage, supplying power for the built-in operation unit and the power control unit and charging the storage battery;
The off-board control module comprises an off-board operation unit, an I/O port and an HMI module; the off-machine operation unit is used for acquiring equipment operation information, such as starting and stopping of the operation of the pipe strander or basket rope forming machine, the operation line speed, unit tension setting and the like, and the off-machine operation unit and the on-machine operation unit exchange data through wireless communication, share the data and perform the functions of each other to realize the control and monitoring of the tension control in the pipe or the bow rotating at high speed; the off-board operation unit is in communication connection with the I/O port and the HMI module, the I/O port is connected with the Internet or the installation equipment, and the installation equipment is used for inputting the running state, the tension control requirement and the control signal of the steel wire.
The power control unit adjusts the current when the induced electricity is consumed according to the instruction of the built-in operation unit, changes the torque output by the generator, and adjusts the force opposite to the paying-off direction through a transmission mechanism or a mechanical connection mode, thereby realizing paying-off constant tension control.
When the rotating speed of the generator is detected to be too low or the generator stops running for a period of time, the electric energy in the storage battery is modulated into the required direct current voltage through the power management unit and is supplied to each unit.
The power management unit is provided with an automatic voltage-boosting and-reducing voltage-stabilizing module, and can output stable direct-current voltage in a wider input range. When the equipment is in normal operation, the electric energy generated by the generator charges the storage battery through the power manager, and simultaneously, a control power supply is provided for an internal operation unit and a power control unit which are arranged in a high-speed rotating pipe or bow. The running speed of the equipment is very slow or the equipment is stopped for a certain time, and under the control of the power manager, a control power supply is provided for an built-in operation unit and a power control unit which are arranged in a pipe or a bow which rotates at a high speed through a storage battery.
The moving end in the rotating body is a rotating shaft of the wire-releasing spool, and the rotating shaft is directly and mechanically connected with a rotor of the generator or is connected with the rotor through a mechanical transmission mechanism.
The constant tension unreeling control system suitable for the application in the rotating body reasonably distributes the space setting of each unit, establishes wireless information transmission connection between the inside and outside of a pipe or a bow rotating at high speed, and manages and distributes the induction electric energy so as to supply power for each unit. Therefore, the industrial problem that the method for reliably controlling the tension in the high-speed rotating body is lacked is solved, the constant-tension paying-off control in the high-speed rotating body is realized, and the fluctuation of the tension control is within +/-5% of a set value.
The invention uses the power management unit to charge the storage battery after the electric energy of the generator is lifted and stabilized, thus when the generator does not generate electricity, the constant tension unreeling control system can supply power through the storage battery, thereby fundamentally solving the technical problems that when a control object is positioned in a pipe or a bow rotating at a high speed, the control system is difficult to take electricity, cannot wire or is frequently caused by failure of sealing a power transmission structure.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a functional block diagram of the present invention;
FIG. 2 is one of the schematic structural diagrams of the embodiment;
FIG. 3 is one of the structural schematic diagrams of the embodiment;
Fig. 4 is a schematic structural diagram of an embodiment.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Examples
As shown in fig. 1, a constant tension unreeling control system suitable for application in a rotating body comprises an in-machine control module arranged in the rotating body and an out-machine control module arranged outside the rotating body;
the built-in control module comprises a generator, a power control unit, a built-in operation unit, a power management unit and a storage battery;
The generator is an electromagnetic generator and comprises a stator and a rotor, wherein an electromagnetic induction coil is wound on the stator, and an electromagnet or an exciting coil is arranged on the rotor; the rotor is directly or indirectly connected with a moving end in the rotating body, and the output end of the generator is respectively and electrically connected with the power control unit and the power management unit;
the built-in operation unit is electrically connected with the power control unit, controls the power control unit and acquires parameters of the generator;
The power management unit is used for modulating the induced electricity of the generator into required direct-current voltage, supplying power for the built-in operation unit and the power control unit and charging the storage battery;
The off-board control module comprises an off-board operation unit, wherein the off-board operation unit is used for acquiring equipment operation information, and the off-board operation unit and the on-board operation unit exchange data through wireless communication;
The power control unit adjusts the current when the induced electricity is consumed according to the instruction of the built-in operation unit, changes the torque output by the generator, and adjusts the force opposite to the paying-off direction through a transmission mechanism or a mechanical connection mode, thereby realizing paying-off constant tension control.
When the rotating speed of the generator is detected to be too low or the generator stops running for a period of time, the electric energy in the storage battery is modulated into the required direct current voltage through the power management unit and is supplied to each unit.
The power management unit is provided with an automatic voltage-increasing and-decreasing voltage-stabilizing module.
The moving end in the rotating body is a rotating shaft of the wire-releasing spool, and the rotating shaft is directly and mechanically connected with a rotor of the generator or is connected with the rotor through a mechanical transmission mechanism.
The off-board operation unit is in communication connection with the I/O port and the HMI module, the I/O port is connected with the Internet or the installation equipment, and the installation equipment is used for inputting the running state, the tension control requirement and the control signal of the steel wire.
Fig. 2 is a specific arrangement situation of the constant tension paying-off system of the present invention in a rotating body rotating at a further high speed, in fig. 2, a fixed boat 7 is arranged in a rotating body 6 rotating at a high speed, an organic external control module 5 is arranged outside the rotating body 6, and an internal operation unit, a power control unit and a power management unit in the internal control module are integrated together to form a tension control device 10; the tension control device 10 is fixed on the fixed boat together with the accumulator 9. The off-board control module 5 is communicated with an on-board arithmetic unit in the tension control device 10 through wireless communication.
The generator 1 of the built-in control module is connected with the rotating shaft of the paying-off spool 3 through a transmission mechanism 8.
When the equipment is started, the off-board control module 5 transmits information such as operation signals and operation parameters of an off-board operation unit to the tension control device 10 through wireless transmission, the traction wheel pulls the steel wire 2, the steel wire 2 is led out from the paying-off spool 3, the paying-off spool 3 also starts to passively rotate, and accordingly the power generator 1 is driven to rotate through the transmission mechanism 8, and the power generator 1 rotates to generate induced electricity. The induced electricity is modulated into the required direct current voltage through the power management module, and power is supplied to each unit or the storage battery is charged. Meanwhile, a part of induced electricity is consumed through the power control unit, the power control unit adjusts the current when the induced electricity is consumed according to the instruction of the tension control device 10, the torque output by the generator (namely the tension control system actuator) is changed, and the force opposite to the paying-off direction is adjusted through a transmission mechanism/mechanical connection mode, so that the paying-off constant tension control is realized.
The current when the induced electricity is consumed is calculated according to the rotating speed and the voltage of the generator fed back to the built-in operation unit by the power control unit, and the equipment operation parameters and the tension set values which are preset by the off-board operation unit and then transmitted to the built-in operation unit in a wireless mode.
When the rotating speed of the generator is detected to be too low or the generator stops running for a period of time, the electric energy in the storage battery is modulated into the required direct current voltage through the power management unit and is supplied to each unit.
An inboard mounting portion:
in the actual running process, the rotary body rotates at high speed, and all parts in the system can only be installed on the fixed boat. The generator is connected with the shaft of the wire-releasing spool through the mechanical transmission mechanism, and the tension control device and the storage battery are fixed at positions which are near the generator and are not easy to be broken by broken wires. All parts in the machine are connected through wires.
An off-board mounting portion:
the off-board control module is installed outside the machine, connected with the equipment host and is responsible for receiving and transmitting the running state, the tension control requirement, the control signal and the like of the installed equipment.
FIG. 3 is an example of a constant tension pay-off system in a rotating body rotating at a high speed, in which in FIG. 3, a generator 1 is connected to an spool rotation shaft 4 in the form of a synchronous belt, and an in-machine tension control device
The built-in operation unit, the power control unit and the power management unit in the built-in control module are integrated together and fixed on a fixed boat together with the storage battery 9.
Fig. 4 shows an embodiment of a constant tension paying-off system in a rotating body rotating at a high speed, in fig. 4, a generator 1 is directly connected with an i-wheel rotating shaft 4 in a mechanical manner, a tension control device 10 is an internal operation unit, a power control unit and a power management unit in an internal control module, and the tension control device is integrated with a storage battery 9 and fixed on a fixed boat.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The constant tension unreeling control system suitable for the application in the rotating body is characterized by comprising an in-machine control module arranged in the rotating body and an out-machine control module arranged outside the rotating body;
the built-in control module comprises a generator, a power control unit and a built-in operation unit;
The generator is an electromagnetic generator and comprises a stator and a rotor, wherein an electromagnetic induction coil is wound on the stator, and an electromagnet or an exciting coil is arranged on the rotor; the rotor is directly or indirectly connected with a moving end in the rotating body, and the output end of the generator is electrically connected with the power control unit;
the built-in operation unit is electrically connected with the power control unit, controls the power control unit and acquires parameters of the generator;
The off-board control module comprises an off-board operation unit, wherein the off-board operation unit is used for acquiring equipment operation information, and the off-board operation unit and the on-board operation unit exchange data through wireless communication;
The power control unit adjusts the current when the induced electricity is consumed according to the instruction of the built-in operation unit, changes the torque output by the generator, and adjusts the force opposite to the paying-off direction through a transmission mechanism or a mechanical connection mode, thereby realizing paying-off constant tension control;
the built-in control module also comprises a power management unit and a storage battery;
the output end of the generator is electrically connected with the power management unit, and the power management unit is used for modulating the induced electricity of the generator into required direct-current voltage, supplying power for the built-in operation unit and the power control unit and charging the storage battery.
2. The constant tension unreeling control system of claim 1 adapted for use in a rotating body wherein the electric energy in the battery is modulated by the power management unit to the desired dc voltage to each unit for a period of time after detecting that the generator is rotating too low or is stopped.
3. The constant tension unreeling control system of claim 1 adapted for application in a rotating body, wherein the moving end in the rotating body is a rotating shaft of a reel for unreeling, and the rotating shaft is directly mechanically connected with a rotor of a generator or is connected with the rotor through a mechanical transmission mechanism.
4. The constant tension unwind control system adapted for in-rotating applications of claim 1, wherein said off-board control module further comprises an I/O port and HMI module; the off-board operation unit is in communication connection with the I/O port and the HMI module, the I/O port is connected with the Internet or the installation equipment, and the installation equipment is used for inputting the running state, the tension control requirement and the control signal of the steel wire.
5. The constant tension unreeling control system of claim 1 adapted for in-rotating body applications, wherein the power management unit is provided with an automatic buck-boost voltage stabilizing module.
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| CN202011627919.5A CN112850362B (en) | 2020-12-31 | 2020-12-31 | Constant tension unreeling control system suitable for application in rotating body |
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| CN114216419B (en) * | 2021-12-10 | 2023-08-18 | 江阴天润信息技术有限公司 | Combined type meter counting system of take-up equipment in rotating body |
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| Title |
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| 一种新型捻股机放卷恒张力控制策略;胡舟逸;刘剑;李春峰;万慧雯;;测控技术;20200418(04);P97-101 * |
| 胡舟逸 ; 刘剑 ; 李春峰 ; 万慧雯 ; .一种新型捻股机放卷恒张力控制策略.测控技术.2020,(04),P97-101. * |
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