CN211991728U - Online automatic extension device of electrode - Google Patents
Online automatic extension device of electrode Download PDFInfo
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- CN211991728U CN211991728U CN202020334150.7U CN202020334150U CN211991728U CN 211991728 U CN211991728 U CN 211991728U CN 202020334150 U CN202020334150 U CN 202020334150U CN 211991728 U CN211991728 U CN 211991728U
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Abstract
The utility model discloses an electrode automatic on-line extension device relates to metallurgical equipment technical field, invents for solving the problem of the unable even moment of torsion of present artifical electrode extension. The electrode on-line automatic lengthening device comprises a cylinder, a driving mechanism and a transmission mechanism arranged in the cylinder; the transmission mechanism comprises a tray and a transmission shaft arranged on the axis of the tray, and a cross slide block is arranged at the bottom of the transmission shaft and is used for connecting an electrode joint; the transmission shaft is driven by the driving mechanism to move around the axis of the cylinder; the cylinder can accommodate therein an electrode parallel to the axial direction of the cylinder. The utility model discloses can even moment of torsion at the electrode extension in-process, and then reduce electrode fracture probability greatly to improve electrode extension efficiency.
Description
Technical Field
The utility model relates to a metallurgical equipment technical field, concretely relates to online automatic extension device of electrode.
Background
The graphite electrode is a high-temperature resistant graphite conductive material which is prepared by using petroleum coke and asphalt coke as aggregates and coal pitch as an adhesive through the steps of raw material calcination, crushing and grinding, batching, kneading, molding, roasting, dipping, graphitization and machining, and is widely applied to an electric arc furnace and a refining furnace in the metallurgy field, and plays a role in conducting in the smelting process. In actual production, according to the requirement of the use length, a plurality of electrodes are required to be connected in a rotating mode through threads on an electrode joint, and the electrodes are put into use after lengthening is completed; in addition, the electrode is gradually worn along with the smelting process in the using process, and needs to be lengthened periodically to meet the requirements of the smelting process.
At present, in domestic and foreign steel plants, the operation of extending a universal electrode is finished by manual off-line extension, specifically, an electrode is hung in an electric furnace electrode extension station by a crane, and an electrode joint is upward; then another electrode is hung above the electrode needing to be lengthened by a crane, and after the positions of the upper electrode and the lower electrode are aligned, the electrode is lengthened by manual rotation. The traveling crane is repeatedly operated twice, and then a group of electrodes can be connected. When the electrode needs to be replaced, the furnace is shut down, the electrode is hung down from the conductive cross arm by the travelling crane, and then the connected electrode is hung on the conductive cross arm by the travelling crane.
Because of manual operation, the torque is easy to be uneven during the extension, and further the electrode thread is damaged; more seriously, the connection torque between electrodes cannot be measured, so that the looseness of the electrode connection part is often caused during smelting, the electrode is easy to break from the joint, and the heat shutdown is caused, thereby influencing the yield. It can be seen that the mode of manual electrode extension wastes time and energy, and workman intensity of labour is high, and can't even moment of torsion moreover and cause the effect of extension unsatisfactory.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides an electrode on-line automatic lengthening device capable of equalizing torque in the electrode lengthening process.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
an electrode on-line automatic lengthening device comprises a cylinder, a driving mechanism and a transmission mechanism arranged in the cylinder; the transmission mechanism comprises a tray and a transmission shaft arranged on the axis of the tray, and a cross slide block is arranged at the bottom of the transmission shaft and is used for connecting an electrode joint; the transmission shaft is driven by the driving mechanism to move around the axis of the cylinder; the cylinder can accommodate therein an electrode parallel to the axial direction of the cylinder.
Further, the driving mechanism comprises a hydraulic motor and an output shaft of the hydraulic motor, and the transmission mechanism further comprises a gear set; the output shaft is engaged with the transmission shaft through the gear set. The hydraulic motor here may be replaced with an electric motor, a cylinder, or the like.
Further, a torque sensor is arranged on the hydraulic motor and used for measuring the torsional moment output by the output shaft.
Furthermore, a pressing plate is further arranged at one end, close to the crosshead shoe, of the transmission shaft, and the pressing plate is detachably connected to the electrode joint.
Furthermore, a plurality of guide parts are evenly arranged on the inner side of the cylinder body along the circumferential direction, and form a sliding-in track of the electrode and enable the electrode to be coaxial with the transmission shaft.
Furthermore, a plurality of pressing mechanisms are further arranged at one end, close to the electrode, in the cylinder body and are uniformly distributed along the circumferential direction of the cylinder body, and the pressing mechanisms are used for preventing the electrode from moving in the direction perpendicular to the axis.
Further, the top of the transmission shaft is provided with a limiting piece, and the limiting piece can move along the axis of the transmission shaft to adjust the stroke of the transmission shaft.
Further, the drive device also comprises a hydraulic station for hydraulic oil supply.
Furthermore, the device also comprises an electric control system, and the hydraulic station, the hydraulic motor, the pressing mechanism and the torque sensor are controlled by the electric control system.
Further, a lifting appliance is arranged above the cylinder body and used for lifting the cylinder body.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides an electrode on-line automatic lengthening device, which comprises a cylinder body, a driving mechanism and a transmission mechanism arranged in the cylinder body; the cylinder can contain the electrode and provide an operation space for electrode extension, and the driving mechanism is used for driving the transmission mechanism to rotate around the axis of the cylinder to realize extension. The transmission mechanism specifically comprises a tray for fixing the position of the transmission mechanism and a transmission shaft which is arranged at the axis of the tray and is used for making lengthening action; in order to be better fixed with the electrode, the bottom of the transmission shaft is provided with a cross slide block for connecting an electrode joint, and the transmission shaft is driven by the driving mechanism to move around the axis of the cylinder body, so that the electrode connected with the cross slide block on the transmission shaft is driven to move around the axis of the cylinder body. Therefore, the electrode connected to the crosshead shoe rotates to be matched with the thread on the electrode joint needing lengthening, and is gradually screwed in and connected to complete the electrode lengthening work.
Therefore, the electrode on-line automatic lengthening device provided by the utility model adopts a mechanical structure, so that the torque can be well uniform in the lengthening process, the probability of electrode fracture is greatly reduced, and the electrode lengthening efficiency is improved; moreover, the device can also be automatically operated in a long distance, and particularly can directly carry out lengthening operation above the electrode needing lengthening in a blowing-out state without hanging the lengthened electrode out, thereby not only saving the working time of travelling crane, but also reducing the production cost because the blowing-out is not too long. Therefore, the utility model discloses the scope of being suitable for is wider, more can use the electrode that is in operating condition not at all, more can use the electrode that is in operating condition and is located electric arc furnace, and labour saving and time saving alleviates workman's intensity of labour, and then improves operational environment.
Drawings
Fig. 1 is a front view of the structure of an electrode on-line automatic lengthening device provided by the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a cross-sectional view B-B of FIG. 1;
fig. 4 is a cross-sectional view taken along line C-C of fig. 1.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model provides an electrode on-line automatic lengthening device, as shown in figure 1, which comprises a cylinder body 1, a driving mechanism 2 and a transmission mechanism 3 arranged in the cylinder body 1; the transmission mechanism 3 comprises a tray 31 and a transmission shaft 32 arranged on the axis of the tray 31, the bottom of the transmission shaft 32 is provided with a crosshead shoe 33, and the crosshead shoe 33 is used for connecting an electrode joint; the transmission shaft 32 is driven by the driving mechanism to move around the axis of the cylinder 1; the cylinder 1 can accommodate therein electrodes parallel to the axial direction of the cylinder 1. Wherein, barrel 1 can hold the electrode and for the electrode extension provides operating space, and actuating mechanism's effect is the rotatory motion of drive mechanism 3 around barrel 1 axis in order to realize the extension action. The transmission mechanism 3 specifically comprises a tray 31 for fixing the position of the transmission mechanism 3 and a transmission shaft 32 which is arranged at the axis of the tray 31 and is used for extension; in order to be better fixed with the electrode, the bottom of the transmission shaft 32 is provided with a crosshead 33 for connecting an electrode joint, the transmission shaft 32 is driven by the driving mechanism to move around the axis of the cylinder 1, and then the electrode connected with the crosshead 33 on the transmission shaft 32 is driven to move around the axis of the cylinder 1. Thus, the electrode connected to the crosshead 33 is rotated to match with the screw thread on the electrode joint to be lengthened, and is gradually screwed and connected to complete the electrode lengthening work.
Preferably, the driving mechanism comprises a hydraulic motor 21 and an output shaft 22 of the hydraulic motor 21, and the transmission mechanism 3 further comprises a gear set 34; in order to accurately transmit the output torque, the output shaft 22 is meshed with the transmission shaft 32 through the gear set 34, under the meshing action of the gears, the motion and the power of the output shaft 22 are transmitted to the transmission shaft 32, the transmission shaft 32 further drives the cross slide block 33 positioned at the bottom of the transmission shaft to rotate, and finally the electrode rotation is realized and the electrode rotation is screwed with the electrode needing to be lengthened to realize the lengthening action, so that the transmission is stable, the reliability is high, the transmission efficiency is higher, and the service life is long.
In the process of lengthening the electrode, if the electrode is screwed too much, the graphite electrode can be damaged, and if the electrode is screwed too loosely, the electrode lengthening quality can be affected, the contact resistance is increased, and the effective input of steelmaking electric energy is reduced. In order to accurately measure the torque to improve the lengthening effect, the hydraulic motor 21 is provided with a torque sensor 23, and the torque sensor 23 is used for measuring the torque output by the output shaft 22. The torque sensor 23 is a sensor for sensing torsional moments on various rotating or non-rotating machine components. The torque sensor 23 converts the physical change of the torque force into an accurate electric signal, and has the advantages of high accuracy, fast frequency response, good reliability, long service life and the like, so that the torque required during lengthening can be adjusted, and the damage of electrode threads is avoided.
In addition, in order to prevent the electrode from falling off, a pressing plate 35 is further provided at one end of the transmission shaft 32 close to the crosshead 33, see fig. 2, the pressing plate 35 is detachably connected to the electrode joint, and the pressing plate 35 is rotatable and in step with the transmission shaft 32. Specifically, the electrode tabs may be fixed to the pressure plate 35 by means of bolts, whereby the electrodes are firmly fixed.
Generally, the inner diameter of the cylinder 1 is larger than the radial dimension of the graphite electrode, in order to avoid the collision of the electrode caused by the fact that the angle is not well controlled or the electrode slightly inclines in the process of sliding into the cylinder 1, a plurality of guide parts 4 can be uniformly arranged on the inner side of the cylinder 1 along the circumferential direction, the plurality of guide parts 4 form a sliding-in track of the electrode and enable the electrode to be coaxial with the transmission shaft 32, therefore, the electrode can be effectively protected, the electrode group needing to be lengthened can be kept at a better concentricity, and the lengthening operation can be completed better.
In order to improve the concentricity of the lengthened electrode and the electrode needing to be lengthened in the lengthening process, a plurality of pressing mechanisms 5 are further arranged at one end, close to the electrode, in the cylinder 1, and the pressing mechanisms 5 are uniformly distributed along the circumferential direction of the cylinder 1 and used for preventing the electrode from moving in the direction perpendicular to the axis. The pressing mechanism 5 may be provided in a plurality of sets, at least one set being disposed near the elongated electrode (the electrode located at the upper side in fig. 1) and at least one set being disposed near the electrode to be elongated (the electrode located at the lower side in fig. 1). In the lengthening process, the pressing mechanism 5 is firstly popped out to tightly fix the lengthened electrode and the electrode needing to be lengthened, so as to position and maintain concentricity; subsequently, the pressing mechanism 5 located in the vicinity of the position where the electrode is to be elongated is kept in the ejected state, avoiding the situation where the electrode to be elongated is moved or displaced in the elongation operation. While the hold-down mechanism 5 located near the position of the elongated electrode is retracted to avoid interfering with the rotation of the elongated electrode. Hold-down mechanism 5 specifically can be dish spring hydro-cylinder that resets, and the clamp force of dish spring hydro-cylinder that resets is realized through the tight power that expands of dish spring, belongs to mechanical locking, only needs switch-on hydraulic pressure to relax when loosening, consequently convenient control, safe and reliable has avoided the risk that hydraulic pressure chucking leaks and leads to. In addition, in order to firmly set the pressing mechanism 5, a fixing frame 8 is also arranged in the cylinder 1 in a matching way.
And, the top of the said drive shaft 32 has locating parts 36, the said locating part 36 can move along the axis of the said drive shaft 32 in order to adjust the journey of the said drive shaft 32, because the electrode is heavier, in order to guarantee the reliability of lengthening operation, set up a locating part 36, the locating part 36 can be blocked on the tray 31 in order to prevent the electrode from overweight and making the drive shaft drop and drop.
The top of the transmission shaft is provided with an adjusting piece which can move along the axis of the transmission shaft to adjust the installation position of the transmission shaft, so that the use length of the transmission shaft 32 is adjusted, and the connection with the electrode is better realized.
Correspondingly, the drive 2 also comprises a hydraulic station 24 for hydraulic oil supply.
It can be understood that the device further comprises an electronic control system 6, the hydraulic station 24, the hydraulic motor 21, the pressing mechanism 5 and the torque sensor 23 are controlled by the electronic control system 6, and accurate lengthening operation is realized under the control of the electronic control system 6, so that a good lengthening effect is realized.
Preferably, in order to facilitate the removal the utility model provides a pair of online automatic extension device of electrode, the top of barrel 1 can be provided with hoist 7, and hoist 7 is used for hoist and mount barrel 1.
More preferably, for the convenience of maintenance, the cylinder 1 may be further divided into a plurality of parts along the axial direction, specifically, the first cylinder 11 located above and the second cylinder 12 located below.
The utility model provides a pair of online automatic extension device of electrode, the extension process specifically is: firstly, screwing an electrode butt joint into a top end mother groove of an electrode to be lengthened; then, under the guidance of the guide part 4, the extension electrode is slid into the cylinder 1 of the electrode on-line automatic extension device, the crosshead 33 is embedded into the top end of the extension electrode and is matched with the pressing plate 35 to be firmly fixed by the bolt, the device is hung above the electrode to be extended by the hanger 7, and the electrode to be extended is also accommodated in the cylinder 1. Simultaneously starting a disc spring reset oil cylinder to keep the concentricity of the extension electrode and the electrode needing to be extended; and then closing the disc spring reset oil cylinder near the extension electrode so as to avoid influencing subsequent extension operation. The hydraulic station 24 is started, the hydraulic motor 21 operates, the output shaft 22 of the hydraulic motor 21 drives the gear set 34, the gear set 34 drives the transmission shaft 32 to rotate, and therefore the crosshead shoe 33 drives the extension electrode to rotate and is automatically connected with the electrode to be extended.
When the on-line smelting electrode needs to be lengthened, the furnace is firstly stopped, the device is hung to the upper end of the on-line smelting electrode needing to be lengthened through a hanger 7 by a travelling crane, a group of disc spring reset oil cylinders at the lower end of the device are started to position the on-line smelting electrode to be concentric with the lengthened electrode at the upper end, and then the lengthening process is the same as the above.
The content of the present invention is not limited to the examples, and any equivalent transformation adopted by the technical solution of the present invention is covered by the claims of the present invention by those skilled in the art through reading the present invention.
Claims (10)
1. The utility model provides an online automatic extension device of electrode which characterized in that: the device comprises a cylinder body, a driving mechanism and a transmission mechanism arranged in the cylinder body;
the transmission mechanism comprises a tray and a transmission shaft arranged on the axis of the tray, and a cross slide block is arranged at the bottom of the transmission shaft and is used for connecting an electrode joint;
the transmission shaft is driven by the driving mechanism to move around the axis of the cylinder;
the cylinder can accommodate therein an electrode parallel to the axial direction of the cylinder.
2. The electrode on-line automatic lengthening device according to claim 1, characterized in that: the driving mechanism comprises a hydraulic motor and an output shaft of the hydraulic motor, and the transmission mechanism further comprises a gear set; the output shaft is engaged with the transmission shaft through the gear set.
3. The electrode on-line automatic lengthening device according to claim 2, characterized in that: the hydraulic motor is provided with a torque sensor, and the torque sensor is used for measuring the torque moment output by the output shaft.
4. The electrode on-line automatic lengthening device according to claim 3, characterized in that: and a pressing plate is further arranged at one end, close to the crosshead shoe, of the transmission shaft, and the pressing plate is detachably connected to the electrode joint.
5. The electrode on-line automatic lengthening device according to claim 4, characterized in that: the inner side of the cylinder body is evenly provided with a plurality of guide parts along the circumferential direction, and the guide parts form a sliding-in track of the electrode and enable the electrode to be coaxial with the transmission shaft.
6. The electrode on-line automatic lengthening device according to claim 5, characterized in that: and a plurality of pressing mechanisms are further arranged at one end, close to the electrode, in the cylinder body and are uniformly distributed along the circumferential direction of the cylinder body, and the pressing mechanisms are used for preventing the electrode from moving in the direction vertical to the axis.
7. The electrode on-line automatic lengthening device according to claim 6, characterized in that: the top of transmission shaft is provided with the locating part, the locating part can be along the axis motion of transmission shaft is in order to adjust the stroke of transmission shaft.
8. The electrode on-line automatic lengthening device according to claim 7, characterized in that: the drive mechanism further comprises a hydraulic station for hydraulic oil supply.
9. The electrode on-line automatic lengthening device according to claim 8, characterized in that: the device also comprises an electric control system, and the hydraulic station, the hydraulic motor, the pressing mechanism and the torque sensor are all controlled by the electric control system.
10. The electrode on-line automatic lengthening device according to claim 9, characterized in that: a lifting appliance is arranged above the cylinder body and used for lifting the cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020334150.7U CN211991728U (en) | 2020-03-17 | 2020-03-17 | Online automatic extension device of electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020334150.7U CN211991728U (en) | 2020-03-17 | 2020-03-17 | Online automatic extension device of electrode |
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| Publication Number | Publication Date |
|---|---|
| CN211991728U true CN211991728U (en) | 2020-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020334150.7U Active CN211991728U (en) | 2020-03-17 | 2020-03-17 | Online automatic extension device of electrode |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114672613A (en) * | 2022-03-24 | 2022-06-28 | 广东韶钢松山股份有限公司 | Electrode connecting device |
| CN117650407A (en) * | 2024-01-29 | 2024-03-05 | 苏州朗信智能科技有限公司 | Electrode lengthening device and buffering lifting mechanism thereof |
-
2020
- 2020-03-17 CN CN202020334150.7U patent/CN211991728U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114672613A (en) * | 2022-03-24 | 2022-06-28 | 广东韶钢松山股份有限公司 | Electrode connecting device |
| CN117650407A (en) * | 2024-01-29 | 2024-03-05 | 苏州朗信智能科技有限公司 | Electrode lengthening device and buffering lifting mechanism thereof |
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Denomination of utility model: An on-line automatic electrode lengthening device Effective date of registration: 20220714 Granted publication date: 20201124 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XI'AN TAOYUAN METALLURGICAL EQUIPMENT ENGINEERING CO.,LTD. Registration number: Y2022610000403 |