CN112708774B - Large-scale electron beam cold bed furnace double ingot pulling device and control method - Google Patents
Large-scale electron beam cold bed furnace double ingot pulling device and control method Download PDFInfo
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- CN112708774B CN112708774B CN202011497655.6A CN202011497655A CN112708774B CN 112708774 B CN112708774 B CN 112708774B CN 202011497655 A CN202011497655 A CN 202011497655A CN 112708774 B CN112708774 B CN 112708774B
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/16—Remelting metals
- C22B9/22—Remelting metals with heating by wave energy or particle radiation
- C22B9/228—Remelting metals with heating by wave energy or particle radiation by particle radiation, e.g. electron beams
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D46/00—Controlling, supervising, not restricted to casting covered by a single main group, e.g. for safety reasons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
- B22D7/005—Casting ingots, e.g. from ferrous metals from non-ferrous metals
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
- B22D7/12—Appurtenances, e.g. for sintering, for preventing splashing
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Abstract
The invention relates to a double ingot pulling device of a large electron beam cold bed furnace and a control method, belonging to the technical field of ingot pulling of electron beam cold bed furnaces. The device comprises an ingot pulling bin and two sets of ingot pulling transmission devices; each set of ingot pulling transmission device comprises a speed reducing transmission system, two ingot pulling screw rods, a bracket and a servo motor, wherein the speed reducing transmission system is formed by connecting three speed reducing transmission mechanisms in series; the first and second speed reducing transmission mechanisms are respectively and correspondingly connected with two ingot pulling screw rods through a connecting device; the third speed reducing transmission mechanism is connected with the servo motor through another connecting device; the invention realizes a double ingot pulling system with two independent ingot pulling transmission devices, meets the requirement that one electron beam cold bed furnace can be suitable for a double-flow phi 390mm round ingot while producing a single-flow flat ingot and a phi 620mm round ingot, increases the product diversity of the electron beam cold bed furnace, realizes closed-loop control through information feedback, ensures the stable operation of the system and better ensures the smelting quality.
Description
Technical Field
The invention belongs to the technical field of ingot pulling of electron beam cold bed furnaces, and particularly relates to a double-ingot pulling device of a large electron beam cold bed furnace and a control method.
Background
At present, one electron beam cold bed furnace can only produce titanium ingots with one specification and has a single product specification. And the manual control is adopted to the control of pulling the spindle system, the functions of remote centralized control and automatic spindle pulling are not provided, a large amount of manpower is occupied on the spot, meanwhile, the manual operation has hysteresis, and the production efficiency cannot be effectively improved.
The traditional process adopts direct transmission of a contactor, the rotating speed of a motor is uncontrollable, and the vacuum degree is difficult to be stabilized within a specific set value range. Meanwhile, the environment conditions of the ingot pulling site are poor, the dust and noise seriously affect the health of post operators, and people are not suitable for long-term on-site attendance. Therefore, how to overcome the defects of the prior art is a problem to be solved urgently in the technical field of ingot pulling of the electron beam cold hearth furnace.
Disclosure of Invention
The invention aims to solve the defects of the prior art, and provides a double-ingot pulling device of a large electron beam cold bed furnace and a control method.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a large-scale electron beam cold bed furnace double ingot pulling device comprises an ingot pulling bin and two sets of ingot pulling transmission devices;
the first ingot pulling transmission device comprises a speed reduction transmission system, a first ingot pulling screw rod, a second ingot pulling screw rod, a bracket A and a servo motor A, wherein the speed reduction transmission system is formed by connecting three speed reduction transmission mechanisms in series; the first and second speed reducing transmission mechanisms are respectively and correspondingly connected with a first ingot pulling screw rod and a second ingot pulling screw rod through a connecting device A; the third speed reducing transmission mechanism is connected with the servo motor A through a connecting device D;
the first ingot pulling screw rod and the second ingot pulling screw rod are arranged at two ends of the bracket A so as to drive the bracket A to move up and down;
the second ingot pulling transmission device comprises a speed reduction transmission system, a third ingot pulling screw rod, a fourth ingot pulling screw rod, a bracket B and a servo motor B, and the speed reduction transmission system is formed by connecting the other three speed reduction transmission mechanisms in series; the first and second speed reducing transmission mechanisms are respectively and correspondingly connected with a third ingot pulling screw rod and a fourth ingot pulling screw rod through a connecting device C; the third speed reducing transmission mechanism is connected with the servo motor B through a connecting device E;
the third ingot pulling screw rod and the fourth ingot pulling screw rod are arranged at two ends of the bracket B so as to drive the bracket B to move up and down;
the first ingot pulling screw rod, the second ingot pulling screw rod, the third ingot pulling screw rod, the fourth ingot pulling screw rod, the bracket A and the bracket B are all arranged in the ingot pulling bin;
each set of ingot pulling transmission device is provided with a displacement detection device, and the displacement detection device is used for detecting the displacement data of each ingot pulling screw rod in the ingot pulling transmission device in real time;
a motor signal feedback module is arranged on each of the servo motor A and the servo motor B; the motor signal feedback module is used for detecting working signals of the servo motor A and the servo motor B in real time;
the device also comprises an ingot pulling mode selection module, an ingot pulling button A, an ingot pulling button B, a central controller, a variable frequency driver and a servo motor;
the displacement detection device, the ingot pulling mode selection module, the ingot pulling button A, the ingot pulling button B, the motor signal feedback module, the variable frequency driver and the servo motor are all connected with the central controller;
the variable frequency driver is also connected with the servo motor;
the servo motor drives the servo motor A and the servo motor B to work through the variable frequency driver;
the central controller is also connected with a servo motor A and a servo motor B;
the ingot pulling button A is connected with the servo motor A; the ingot pulling button B is connected with a servo motor B;
the ingot pulling mode selection module is used for selecting an ingot pulling mode; the ingot pulling mode comprises an A mode, a B mode and an AB mode;
the central controller receives the mode selected by the ingot pulling mode selection module, then transmits a control signal to an ingot pulling button A and/or an ingot pulling button B, and simultaneously starts a servo motor and a variable frequency driver;
when the ingot pulling button A receives a control signal of the central controller, the servo motor A is started, and the servo motor drives the servo motor A to work through the variable frequency driver, so that ingot pulling of the first ingot pulling transmission device is realized;
when the ingot pulling button B receives a control signal of the central controller, the servo motor B is started, and the servo motor drives the servo motor B to work through the variable frequency driver, so that ingot pulling of the second ingot pulling transmission device is realized;
when the ingot is pulled, the central controller is used for receiving the data transmitted by the displacement detection device and the motor signal feedback module and then controlling the working output condition of the servo motor through the data.
Further, preferably, the ingot pulling bin is of a cylindrical structure.
Further, preferably, the device also comprises a motor fan, a contactor driver and an asynchronous motor; the servo motor A and the servo motor B are both provided with a motor fan; the motor fan is connected with the asynchronous motor through a contactor driver; the asynchronous motor drives a motor fan to work through a contactor driver; the contactor driver and the asynchronous motor are connected with the central controller; the central controller is used for controlling the work of the contactor driver and the asynchronous motor.
Further, preferably, the first ingot pulling screw rod and the third ingot pulling screw rod, and the second ingot pulling screw rod and the fourth ingot pulling screw rod are respectively connected through a connecting device B.
Further, preferably, the automatic ingot pulling device further comprises an automatic ingot pulling module, wherein the automatic ingot pulling module is respectively connected with the displacement detection device and the central controller of the motor signal feedback module; the automatic ingot pulling module generates an automatic ingot pulling mode by acquiring data of the displacement detection device and the motor signal feedback module, and then realizes automatic ingot pulling by controlling the central controller.
The invention also provides a large-scale electron beam cooling bed furnace double ingot pulling method, which adopts the large-scale electron beam cooling bed furnace double ingot pulling device and comprises the following steps:
firstly, installing a corresponding connecting device according to the specification of a titanium ingot to be produced;
secondly, the device is powered on, and the ingot pulling mode selection module is selected to be in a corresponding mode;
thirdly, when manual ingot pulling is performed, according to the ingot pulling length and the ingot pulling frequency set in the central controller, a frequency conversion loop starting signal is given, a corresponding ingot pulling button is started, a servo motor in a corresponding ingot pulling transmission device starts ingot pulling according to the set ingot pulling frequency, and the automatic ingot pulling is immediately stopped when the set ingot pulling length is reached;
and fourthly, when the automatic ingot pulling device is in the automatic ingot pulling state, the automatic ingot pulling module automatically gives an ingot pulling signal according to analysis, automatically gives a frequency conversion loop starting signal, the servo motor in the corresponding ingot pulling transmission device starts to pull the ingot according to the corresponding ingot pulling frequency, and the automatic ingot pulling device immediately and automatically stops when the set ingot pulling length is reached.
The system of the invention is provided with a double ingot pulling system with two sets of independent ingot pulling transmission devices, and meets the requirement that one electron beam cooling bed furnace can be used for producing a single-flow flat ingot and a phi 620mm round ingot and simultaneously is suitable for a double-flow phi 390mm round ingot.
The system of the invention is provided with two sets of ingot pulling screw rod devices in the ingot pulling bin, thus realizing independent ingot pulling or simultaneous ingot pulling of the two sets of screw rods and realizing electrical synchronization.
The servo motor A and the servo motor B are provided with the motor fans, so that the fans can be independently controlled to operate, the servo motors can be effectively protected, and the motors are prevented from being damaged due to overheating.
When only the connecting device A and the connecting device C are installed, the servo motor A drives the first ingot pulling screw rod and the second ingot pulling screw rod, the servo motor B drives the third ingot pulling screw rod and the fourth ingot pulling screw rod, double-flow double-ingot pulling driving of one machine is achieved, and double-flow round ingots with diameters of phi 260-phi 390mm can be produced. When only the connecting device A and the connecting device B are installed, the servo motor A drives the first ingot drawing screw rod, the second ingot drawing screw rod, the third ingot drawing screw rod and the fourth ingot drawing screw rod, single-machine single-flow single ingot drawing driving is achieved, single-flow round ingots with the diameter phi of 260-phi 620mm can be produced, flat ingots with the thickness of 210mm, the width of 1050-1550mm and the maximum length of a single ingot being not less than 10000mm can also be produced.
The servo motor A is provided with the connecting device D in the rear, the servo motor B is provided with the connecting device E in the rear, and when the servo motor A and the servo motor B are debugged, the connecting devices correspondingly installed later can be disassembled to carry out no-load debugging.
The invention is provided with the ingot pulling mode selection module, the ingot pulling button A and the ingot pulling button B, can switch the ingot pulling modes according to the real-time production condition, and can independently control two sets of ingot pulling devices. The ingot pulling control is controlled by a central controller.
The transmission devices are controlled by the central controller, meanwhile, the motor signal feedback module feeds back servo motor signals to the central controller, and the central controller performs device interlocking and safety interlocking.
In the invention, the servo motor A and the servo motor B are both driven by variable frequency, and are driven by a variable frequency driver, so that stepless speed regulation is realized.
In the invention, the motor fan is driven by an asynchronous motor, and the central controller controls the contactor driver to directly drive the asynchronous motor, only comprises starting and stopping, and does not have a stepless speed regulation function. The central controller is also used for controlling whether the asynchronous motor is connected to the power supply;
in the invention, the motor signal feedback module is in communication connection with the central controller, and the central controller can receive real-time servo motor signal feedback to form closed-loop control and improve the control precision.
The automatic ingot pulling module is introduced, and an automatic ingot pulling signal is obtained through analysis of the automatic ingot pulling module; when the automatic ingot pulling device is in the automatic ingot pulling mode, the central controller receives a control signal transmitted by the automatic ingot pulling module and then automatically operates production according to the content of the signal.
When the ingot pulling mode selection module selects the ingot pulling mode A, a control signal is transmitted to the ingot pulling button A, and the servo motor drives the servo motor A to work through the variable frequency driver, so that the ingot pulling of the first ingot pulling transmission device is realized;
when the ingot pulling mode selection module selects the ingot pulling mode B, a control signal is transmitted to the ingot pulling button B, and the servo motor drives the servo motor B to work through the variable frequency driver, so that ingot pulling of the second ingot pulling transmission device is realized;
when the ingot pulling mode selection module selects the AB ingot pulling mode, control signals are transmitted to the ingot pulling button A and the ingot pulling button B, and the servo motor drives the servo motor A and the servo motor B to work through the variable frequency driver, so that simultaneous ingot pulling of the first set of ingot pulling transmission device and the second set of ingot pulling transmission device is realized;
the central controller of the invention preferably adopts the combination of digital electronic technology and a graphic analysis system to form a control method combining software and hardware.
Preferably, the signals fed back by the motor signal feedback module comprise an operation state, a rotation direction, a set frequency, a set rotation speed, a real-time frequency, a real-time rotation speed, a real-time current, a real-time voltage, a real-time power and a real-time torque.
Compared with the prior art, the invention has the beneficial effects that:
the ingot pulling device is designed into double ingot pulling, and can realize single-machine ingot pulling and double-machine synchronous ingot pulling or double-machine asynchronous ingot pulling.
The invention introduces an automatic ingot pulling analysis technology, an on-line detection technology and a frequency conversion control technology, and designs a new control method to achieve an accurate synchronous control method.
The double-ingot pulling device of the large-scale electron beam cold bed furnace and the control method thereof can improve the product diversity of the electron beam cold bed furnace, improve the yield, improve the labor efficiency and reduce the personal injury.
The invention realizes a double ingot pulling system with two independent transmission devices. The method meets the requirements that one electron beam cold bed furnace can produce a single-flow flat ingot and a phi 620mm round ingot and is suitable for a double-flow phi 390mm round ingot, the product diversity of the electron beam cold bed furnace is increased, closed-loop control is realized through information feedback, the stable operation of a system is ensured, and the smelting quality is better ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the apparatus of the present invention;
FIG. 2 is a schematic diagram of a control method of the apparatus of the present invention;
FIG. 3 is a schematic diagram of a central controller of the apparatus of the present invention;
wherein, 1, pulling ingot bin; 2. a reduction transmission mechanism; 3. a first ingot pulling screw rod; 4. a second ingot pulling screw rod; 5. a third ingot pulling screw rod; 6. a fourth ingot pulling screw rod; 7. a servo motor A; 8. a servo motor B; 9. a coupling device A; 10. a coupling device B; 11. a coupling device C; 12. a bracket A; 13. a bracket B; 14. a coupling device D; 15. a coupling device E; 16. a motor fan; 101. a displacement detecting device; 102. a pulling ingot mode selection module; 103. a pulling button A; 104. a pulling button B; 105. a motor signal feedback module; 106. an automatic ingot pulling module; 107. a central controller; 108. a variable frequency drive; 109. a contactor actuator; 110. a servo motor; 111. an asynchronous motor.
Detailed Description
The present invention will be described in further detail with reference to examples.
It will be appreciated by those skilled in the art that the following examples are illustrative of the invention only and should not be taken as limiting the scope of the invention. In the examples, specific techniques, connections, or conditions are not specified, and the techniques, connections, conditions, or product specifications described in the literature in the art are followed. The materials, instruments or equipment are not indicated by manufacturers, and all the materials, instruments or equipment are conventional products which can be obtained by purchasing.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, "connected" as used herein may include wirelessly connected. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the description of the present invention, "a plurality" means two or more unless otherwise specified. The terms "inner," "upper," "lower," and the like, refer to an orientation or a state relationship based on that shown in the drawings, which is for convenience in describing and simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "provided" are to be construed broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention are understood according to specific situations.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
In the embodiment, all the linkage devices are existing products, and the internal structure of the linkage device is not improved.
As shown in fig. 1 and 2, a large electron beam cold bed furnace double ingot pulling device comprises an ingot pulling bin 1 and two sets of ingot pulling transmission devices;
the first ingot pulling transmission device comprises a speed reduction transmission system, a first ingot pulling screw rod 3, a second ingot pulling screw rod 4, a bracket A12 and a servo motor A7, and the speed reduction transmission system is formed by connecting three speed reduction transmission mechanisms 2 in series; the first and second speed reducing transmission mechanisms 2 are respectively and correspondingly connected with a first ingot pulling screw rod 3 and a second ingot pulling screw rod 4 through a connecting device A9; the third speed reducing transmission mechanism 2 is connected with a servo motor A7 through a connecting device D14;
the first ingot pulling screw rod 3 and the second ingot pulling screw rod 4 are arranged at two ends of the bracket A12 to drive the bracket A12 to move up and down;
the second ingot pulling transmission device comprises a speed reduction transmission system, a third ingot pulling screw rod 5, a fourth ingot pulling screw rod 6, a bracket B13 and a servo motor B8, and the speed reduction transmission system is formed by connecting the other three speed reduction transmission mechanisms 2 in series; wherein, the first and the second deceleration transmission mechanisms 2 are respectively correspondingly connected with a third ingot-pulling screw rod 5 and a fourth ingot-pulling screw rod 6 through a connecting device C11; the third speed reducing transmission mechanism 2 is connected with a servo motor B8 through a connecting device E15;
the third ingot pulling screw rod 5 and the fourth ingot pulling screw rod 6 are arranged at two ends of the bracket B13 so as to drive the bracket B13 to move up and down;
a first ingot pulling screw rod 3, a second ingot pulling screw rod 4, a third ingot pulling screw rod 5, a fourth ingot pulling screw rod 6, a bracket A12 and a bracket B13 are all arranged in the ingot pulling bin 1;
each set of ingot pulling transmission device is provided with a displacement detection device 101, and the displacement detection device 101 is used for detecting displacement data of each ingot pulling screw rod in the ingot pulling transmission device in real time;
a motor signal feedback module 105 is respectively arranged on the servo motor A7 and the servo motor B8; the motor signal feedback module 105 is used for detecting working signals of the servo motor A7 and the servo motor B8 in real time;
the system also comprises a pulling ingot mode selection module 102, a pulling ingot button A103, a pulling ingot button B104, a central controller 107, a variable frequency driver 108 and a servo motor 110;
the displacement detection device 101, the ingot pulling mode selection module 102, the ingot pulling button A103, the ingot pulling button B104, the motor signal feedback module 105, the variable frequency driver 108 and the servo motor 110 are all connected with the central controller 107;
the variable frequency driver 108 is also connected with a servo motor 110;
the servo motor 110 drives the servo motor A7 and the servo motor B8 to work through the variable frequency driver 108;
the central controller 107 is also connected with a servo motor A7 and a servo motor B8;
the ingot pulling button A103 is connected with a servo motor A7; the ingot pulling button B104 is connected with a servo motor B8;
the ingot pulling mode selection module 102 is used for selecting an ingot pulling mode; the ingot pulling mode comprises an A mode, a B mode and an AB mode;
the central controller 107 receives the mode selected by the ingot pulling mode selection module 102, then transmits a control signal to the ingot pulling button A103 and/or the ingot pulling button B104, and simultaneously starts the servo motor 110 and the variable frequency driver 108;
when the ingot pulling button A103 receives a control signal of the central controller 107, the servo motor A7 is started, and the servo motor 110 drives the servo motor A7 to work through the variable frequency driver 108, so that ingot pulling of the first ingot pulling transmission device is realized;
when the ingot pulling button B104 receives a control signal of the central controller 107, the servo motor B8 is started, and the servo motor 110 drives the servo motor B8 to work through the variable frequency driver 108, so that ingot pulling of the second set of ingot pulling transmission device is realized;
when pulling the ingot, the central controller 107 is configured to receive data transmitted from the displacement detecting device 101 and the motor signal feedback module 105, and then control the output of the servo motor 110 according to the data.
A schematic diagram of the central controller 107 is shown in fig. 3.
Preferably, the ingot pulling bin 1 is of a cylindrical structure.
Preferably, the device also comprises a motor fan 16, a contactor driver 109 and an asynchronous motor 111; a motor fan 16 is respectively arranged on the servo motor A7 and the servo motor B8; the motor fan 16 is connected with an asynchronous motor 111 through a contactor driver 109; the asynchronous motor 111 drives the motor fan 16 to work through the contactor driver 109; a contactor driver 109, an asynchronous motor 111 and a central controller 107; the central controller 107 is used for controlling the operation of a contactor driver 109 and an asynchronous motor 111.
Preferably, the first ingot-pulling screw rod 3 and the third ingot-pulling screw rod 5, and the second ingot-pulling screw rod 4 and the fourth ingot-pulling screw rod 6 are respectively connected through a connecting device B10.
As a preferable scheme, the device also comprises an automatic ingot pulling module 106, wherein the automatic ingot pulling module 106 is respectively connected with the displacement detection device 101 and the central controller 107 of the motor signal feedback module 105; the automatic ingot pulling module 106 generates an automatic ingot pulling mode by collecting data of the displacement detection device 101 and the motor signal feedback module 105, and then realizes automatic ingot pulling by controlling the central controller 107.
The large-scale electron beam cooling bed furnace double ingot pulling method adopts the large-scale electron beam cooling bed furnace double ingot pulling device, and comprises the following steps:
firstly, installing a corresponding connecting device according to the specification of a titanium ingot to be produced;
secondly, the device is powered on, and the ingot pulling mode selection module is selected to be in a corresponding mode;
thirdly, setting the ingot pulling length and the ingot pulling frequency when the ingot is manually pulled, giving a starting signal of a frequency conversion loop, starting a corresponding ingot pulling button, starting the ingot pulling by a servo motor in a corresponding ingot pulling transmission device according to the set ingot pulling frequency, and immediately and automatically stopping when the set ingot pulling length is reached;
and fourthly, when the automatic ingot pulling device is in the automatic ingot pulling state, the automatic ingot pulling module automatically gives an ingot pulling signal according to analysis, and automatically gives a frequency conversion loop starting signal, a servo motor in the corresponding ingot pulling transmission device starts to pull the ingot according to the corresponding ingot pulling frequency, and the automatic ingot pulling device immediately and automatically stops when the set ingot pulling length is reached.
When only the connecting device A9 and the connecting device C11 are installed, the servo motor A7 drives the first ingot drawing screw rod 3 and the second ingot drawing screw rod 4, the servo motor B8 drives the third ingot drawing screw rod 5 and the fourth ingot drawing screw rod 6, double-flow double-ingot drawing driving of one machine is realized, and double-flow round ingots with the diameters phi of 260-phi 390mm can be produced. When only the connecting device A9 and the connecting device B10 are installed, the servo motor A7 drives the first ingot pulling screw rod 3, the second ingot pulling screw rod 4, the third ingot pulling screw rod 5 and the fourth ingot pulling screw rod 6, single-machine single-flow single-ingot pulling driving is achieved, single-flow round ingots with the diameter phi of 260-phi 620mm can be produced, flat ingots with the thickness of 210mm, the width of 1050-1550mm and the maximum length of a single ingot of not less than 10000mm can also be produced.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A large-scale electron beam cold bed furnace double ingot pulling device is characterized by comprising an ingot pulling bin (1) and two sets of ingot pulling transmission devices;
the first ingot pulling transmission device comprises a speed reduction transmission system, a first ingot pulling screw rod (3), a second ingot pulling screw rod (4), a bracket A (12) and a servo motor A (7), and the speed reduction transmission system is formed by connecting three speed reduction transmission mechanisms (2) in series; wherein, the first and the second deceleration transmission mechanisms (2) are respectively and correspondingly connected with a first ingot-pulling screw rod (3) and a second ingot-pulling screw rod (4) through a connecting device A (9); the third speed reducing transmission mechanism (2) is connected with a servo motor A (7) through a connecting device D (14);
the first ingot pulling screw rod (3) and the second ingot pulling screw rod (4) are arranged at two ends of the bracket A (12) to drive the bracket A (12) to move up and down;
the second ingot pulling transmission device comprises a speed reduction transmission system, a third ingot pulling screw rod (5), a fourth ingot pulling screw rod (6), a bracket B (13) and a servo motor B (8), and the speed reduction transmission system is formed by connecting the other three speed reduction transmission mechanisms (2) in series; wherein, the first and the second speed reducing transmission mechanisms (2) are respectively and correspondingly connected with a third ingot drawing screw rod (5) and a fourth ingot drawing screw rod (6) through a connecting device C (11); the third speed reduction transmission mechanism (2) is connected with a servo motor B (8) through a connecting device E (15);
the third ingot pulling screw rod (5) and the fourth ingot pulling screw rod (6) are arranged at two ends of the bracket B (13) to drive the bracket B (13) to move up and down;
the first ingot pulling screw rod (3), the second ingot pulling screw rod (4), the third ingot pulling screw rod (5), the fourth ingot pulling screw rod (6), the bracket A (12) and the bracket B (13) are all arranged in the ingot pulling bin (1);
each set of ingot pulling transmission device is provided with a displacement detection device (101), and the displacement detection device (101) is used for detecting the displacement data of each ingot pulling screw rod in the ingot pulling transmission device in real time;
a motor signal feedback module (105) is respectively arranged on the servo motor A (7) and the servo motor B (8); the motor signal feedback module (105) is used for detecting working signals of the servo motor A (7) and the servo motor B (8) in real time;
the device also comprises a pulling ingot mode selection module (102), a pulling ingot button A (103), a pulling ingot button B (104), a central controller (107), a variable frequency driver (108) and a servo motor (110);
the displacement detection device (101), the ingot pulling mode selection module (102), the ingot pulling button A (103), the ingot pulling button B (104), the motor signal feedback module (105), the variable frequency driver (108) and the servo motor (110) are all connected with the central controller (107);
the variable frequency driver (108) is also connected with a servo motor (110);
the servo motor (110) drives the servo motor A (7) and the servo motor B (8) to work through the variable frequency driver (108);
the central controller (107) is also connected with a servo motor A (7) and a servo motor B (8);
the ingot pulling button A (103) is connected with a servo motor A (7); the ingot pulling button B (104) is connected with a servo motor B (8);
the ingot pulling mode selection module (102) is used for selecting an ingot pulling mode; the ingot pulling mode comprises an A mode, a B mode and an AB mode;
the central controller (107) receives the mode selected by the ingot pulling mode selection module (102), then transmits a control signal to the ingot pulling button A (103) and/or the ingot pulling button B (104), and simultaneously starts the servo motor (110) and the variable frequency driver (108);
when the ingot pulling button A (103) receives a control signal of the central controller (107), the servo motor A (7) is started, and the servo motor A (7) is driven to work by the servo motor (110) through the variable frequency driver (108), so that ingot pulling of the first ingot pulling transmission device is realized;
when the ingot pulling button B (104) receives a control signal of the central controller (107), the servo motor B (8) is started, and the servo motor (110) drives the servo motor B (8) to work through the variable frequency driver (108), so that ingot pulling of the second set of ingot pulling transmission device is realized;
when the ingot is pulled, the central controller (107) is used for receiving data transmitted by the displacement detection device (101) and the motor signal feedback module (105), and then controlling the working output condition of the servo motor (110) through the data.
2. A large-scale electron beam cold bed furnace double ingot pulling device according to claim 1, characterized in that the ingot pulling bin (1) is of a cylindrical structure.
3. The double ingot pulling device of the large electron beam cold hearth furnace according to claim 1, further comprising a motor fan (16), a contactor driver (109) and an asynchronous motor (111); a motor fan (16) is respectively arranged on the servo motor A (7) and the servo motor B (8); the motor fan (16) is connected with the asynchronous motor (111) through a contactor driver (109); an asynchronous motor (111) drives a motor fan (16) to work through a contactor driver (109); the contactor driver (109) and the asynchronous motor (111) are connected with the central controller (107); the central controller (107) is used for controlling the work of the contactor driver (109) and the asynchronous motor (111).
4. The double ingot pulling device of the large electron beam cold bed furnace according to claim 1, wherein the first ingot pulling screw rod (3) and the third ingot pulling screw rod (5), and the second ingot pulling screw rod (4) and the fourth ingot pulling screw rod (6) are respectively connected through a connecting device B (10).
5. The large-scale electron beam cold bed furnace double ingot pulling device according to claim 1, further comprising an automatic ingot pulling module (106), wherein the automatic ingot pulling module (106) is respectively connected with the displacement detection device (101) and the central controller (107) of the motor signal feedback module (105); the automatic ingot pulling module (106) generates an automatic ingot pulling mode by acquiring data of the displacement detection device (101) and the motor signal feedback module (105), and then realizes automatic ingot pulling by controlling the central controller (107).
6. A large-scale electron beam cold bed furnace double ingot pulling method adopts the large-scale electron beam cold bed furnace double ingot pulling device of any one of claims 1 to 5, and is characterized by comprising the following steps:
firstly, installing a corresponding connecting device according to the specification of a titanium ingot to be produced;
secondly, the device is powered on, and the ingot pulling mode selection module is selected to be in a corresponding mode;
thirdly, when manual ingot pulling is performed, according to the ingot pulling length and the ingot pulling frequency set in the central controller, a frequency conversion loop starting signal is given, a corresponding ingot pulling button is started, a servo motor in a corresponding ingot pulling transmission device starts ingot pulling according to the set ingot pulling frequency, and the automatic ingot pulling is immediately stopped when the set ingot pulling length is reached;
and fourthly, when the automatic ingot pulling device is in the automatic ingot pulling state, the automatic ingot pulling module automatically gives an ingot pulling signal according to analysis, automatically gives a frequency conversion loop starting signal, the servo motor in the corresponding ingot pulling transmission device starts to pull the ingot according to the corresponding ingot pulling frequency, and the automatic ingot pulling device immediately and automatically stops when the set ingot pulling length is reached.
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| CN102776390B (en) * | 2012-07-02 | 2013-11-06 | 洛阳双瑞精铸钛业有限公司 | Method for producing titanium slabs efficiently |
| CN103182488B (en) * | 2013-04-08 | 2016-03-16 | 中国重型机械研究院股份公司 | An a kind of machine two flows slab caster and production method thereof |
| CN103952569A (en) * | 2014-04-23 | 2014-07-30 | 宝鸡市凯博真空科技有限公司 | Electronic beam cold hearth furnace |
| CN104032142B (en) * | 2014-05-30 | 2016-03-30 | 云南钛业股份有限公司 | A Method for Vertically Casting Small Titanium Billet in Electron Beam Cooling Hearth Furnace |
| CN205313648U (en) * | 2015-12-28 | 2016-06-15 | 北京有色金属研究总院 | Novel vacuum electron beam melting furnace |
| CN109945654B (en) * | 2017-12-21 | 2024-05-31 | 有研工程技术研究院有限公司 | Ingot dragging device of electron beam smelting furnace |
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