CN106975912B - Hydraulic device - Google Patents
Hydraulic device Download PDFInfo
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- CN106975912B CN106975912B CN201710219035.8A CN201710219035A CN106975912B CN 106975912 B CN106975912 B CN 106975912B CN 201710219035 A CN201710219035 A CN 201710219035A CN 106975912 B CN106975912 B CN 106975912B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The invention discloses a hydraulic device, which belongs to the technical field of industrial equipment, and comprises a base, an external frame, a hydraulic motor, an axial compensation mechanism, a clamping and rotating mechanism, a rotary joint and a hydraulic station, wherein the base comprises an upper layer of fixed plate and a lower layer of fixed plate with semicircular inner holes, and an upright guide rod is arranged at the top of the fixed plate; the outer frame comprises a round cylinder body with a window, a stand column which can be sleeved outside a guide rod at the top of the base is arranged at the lower part of the cylinder body, a guide wheel in the horizontal direction is arranged at the inner side of the cylinder body, and a top cover is arranged at the top of the cylinder body; the hydraulic motor is arranged on the outer side of the upper part of the outer frame along the vertical direction, and a motor transmission gear is arranged on an output shaft of the hydraulic motor. The invention provides a hydraulic device which can automatically butt-joint and screw up a cylinder with threads, is particularly suitable for electrode connection work, and can greatly improve the working efficiency, reduce the labor cost and the labor intensity and eliminate the potential safety hazard by adopting the device to connect with the electrodes.
Description
Technical Field
The invention belongs to the technical field of electromagnetic detection sensors, and particularly relates to a hydraulic device.
Background
With the rapid development of social economy in the world today, the demands of various industries on special steel materials are becoming more and more widespread. Electrodes of different specifications are mostly used in electric furnaces used up to now. As a conductive material in electric furnace smelting, the consumption of the electrode is in direct proportion with the consumption of the electric motor. The parameters of the electrode commonly used in China at present are as follows: the diameter is 300 mm-1400 mm, the length is 1600 mm-2800 mm, electrodes with different specifications are used according to the size of an electric furnace during operation, and the electrodes are required to be continuously lengthened along with continuous consumption of the electrodes in electric furnace smelting.
At present, most of electrode lengthening modes adopted by enterprises including large-scale steel factories in the field, especially domestic enterprises, adopt manual lengthening, and the method is that an operator climbs to the furnace top to hoist a new electrode to the furnace top to be manually butted and screwed with an old electrode after the electric furnace is powered off and stops working. Taking a 50 ton alternating current electric furnace as an example, 1100 tons of molten steel can be produced at full load every day, about 5 tons of graphite electrodes are consumed, the furnace is stopped for 5 to 8 times every day when the electrodes are lengthened, and the time wasted on the electrodes is more than two hours every day according to the time required for completing the electrode lengthening work every time which is about 30 minutes. The manual furnace shutdown operation not only causes the reduction of the operation rate and the reduction of the yield of the electric furnace, but also has great danger in high-altitude operation because the top of the electric furnace belongs to a high-temperature region of the electric furnace and has severe operation environment and great labor intensity of operators.
Disclosure of Invention
In view of the above, the invention provides a hydraulic device which can automatically butt-joint and screw-tighten a threaded cylinder, is particularly suitable for electrode connection work, and can greatly improve the working efficiency, reduce the labor cost and the labor intensity and eliminate the potential safety hazard by adopting the device to connect the electrodes.
The invention solves the problems by the following technical means:
a hydraulic device, characterized in that: including base, external frame, hydraulic motor, axial compensating mechanism, centre gripping rotary mechanism, rotary joint and hydraulic pressure station, wherein:
the base comprises an upper layer of fixed plate and a lower layer of fixed plate with semicircular inner holes, and an upright guide rod is arranged at the top of the fixed plate;
the outer frame comprises a round cylinder body with a window, a stand column which can be sleeved outside a guide rod at the top of the base is arranged at the lower part of the cylinder body, a guide wheel in the horizontal direction is arranged at the inner side of the cylinder body, and a top cover is arranged at the top of the cylinder body;
the hydraulic motor is arranged on the outer side of the upper part of the outer frame along the vertical direction, and a motor transmission gear is arranged on an output shaft of the hydraulic motor;
the axial compensation mechanism comprises a pair of screw thread components arranged in the center of the top cover, female threads in the screw thread components are fixedly arranged in the center of the top cover, and male threads in the screw thread components are arranged in the female threads in a threaded fit manner;
the clamping and rotating mechanism comprises a rotating mechanism and an upper clamping mechanism, the rotating mechanism comprises a rotating cylinder arranged in an outer frame, the top of the rotating cylinder is connected with the top of a male thread, a gear ring which can rotate in a matched manner with a motor transmission gear is arranged on the outer side of the upper part of the rotating cylinder, a clamping notch is formed in the middle of the rotating cylinder, and a guide ring table which can be matched and positioned with a guide wheel is arranged on the outer side of the lower part of the rotating cylinder; the upper clamping mechanism is arranged outside the clamping notch of the rotating collet and positioned inside the outer frame, and comprises an upper hydraulic cylinder and an upper holding clamp driven by the upper hydraulic cylinder;
the rotary joint is arranged in the male thread, one end of an oil inlet pipe 1101 of the rotary joint is connected with the hydraulic station, the other end of the oil inlet pipe 1101 is connected with the upper hydraulic cylinder, one end of an oil outlet pipe of the rotary joint is connected with the hydraulic station, and the other end of the oil outlet pipe is connected with the upper hydraulic cylinder;
the hydraulic station is arranged at the upper part of the outer frame and is connected with the oil way of the hydraulic motor.
Further, still including setting up the bracket mechanism in the stand bottom, bracket mechanism is including the bracket board that is equipped with semicircle hole, the bracket pneumatic cylinder that is connected with the hydraulic pressure station, bracket transmission rack, bracket gear and layer board, and the bracket pneumatic cylinder passes through the hydro-cylinder support and installs on the bracket board, the telescopic shaft of bracket pneumatic cylinder has bracket transmission rack through bracket pin hub connection, one side of layer board is equipped with the rack, bracket transmission rack and layer board rack simultaneously with bracket gear engagement transmission.
Further, the automatic lifting balance detection device further comprises a lifting balance sensing system, wherein the lifting balance sensing system comprises a proximity switch sensor, a detection body, an indicator light and a controller, the proximity switch sensor is arranged on the outer wall of the middle of the upright post, the detection body is arranged on a guide rod inside the upright post, an input port of the controller is connected with the proximity switch sensor, and an output port of the controller is connected with the indicator light.
Further, the base comprises a lower clamping mechanism, wherein the lower clamping mechanism is arranged between the upper layer of fixing plate and the lower layer of fixing plate, comprises a lower hydraulic cylinder connected with the hydraulic station and a lower holding clamp driven by the lower hydraulic cylinder, and comprises a lower clamping plate and an L-shaped lower connecting arm; the telescopic shaft of lower pneumatic cylinder passes through the one end of lower arm of lower part round pin hub connection L type, and the other end of L type lower arm passes through the lower splint round pin hub connection lower plate, and the middle part of L type lower arm is installed on the base support through lower arm locating pin axle.
Further, the upper portion of upper portion centre gripping is held tightly and is pressed from both sides including L type upper arm and punch holder, upper portion pneumatic cylinder one end is through upper portion round pin hub connection L type upper arm, the other end of L type upper arm is through punch holder round pin hub connection punch holder, and the middle part of L type upper arm is installed on the rotary drum support through last arm round pin hub, the outside of the breach is held to the rotary drum is provided with the limit stop that restricts the outside displacement of punch holder.
Further, the top of the top cover is provided with a hanging ring.
Further, a steel wire rope sleeve is arranged between the base and the frame for connection.
Further, the hydraulic power station comprises a hydraulic power control cabinet arranged on the side face of the upright post, and the hydraulic power control cabinet is connected with the hydraulic station and electric equipment in the device.
The hydraulic device has the following beneficial effects:
the invention provides a hydraulic device which can automatically butt-joint and screw up a cylinder with threads, is particularly suitable for electrode connection work, and can greatly improve the working efficiency, reduce the labor cost and the labor intensity and eliminate the potential safety hazard by adopting the device to connect with the electrodes. Has the following main advantages:
1. the axial compensation mechanism can realize the expansion and contraction of the clamping cylinder, and when the rotary cylinder rotates positively and negatively, the whole rotary cylinder can be compensated by the bearing.
2. The clamping and rotating mechanism not only can realize stable clamping of the inner cylinder, but also can realize stable rotation of the clamping cylinder.
3. The upper clamping mechanism, the bracket mechanism and the lower clamping mechanism can greatly ensure the position of the clamping cylinder, and eliminate potential safety hazards.
4. The lifting balance sensing system can detect whether the device is in a horizontal state when descending, and an operator can conveniently adjust the device to the horizontal state through the indicator lamp.
When the hydraulic device provided by the invention is used for connecting the threaded cylindrical electrode, the whole device is not required to be powered off and shut down when the electrode is connected, the whole device is subjected to insulation treatment, workers do not need to climb to the furnace top to perform manual operation, the device can automatically load the electrode into the device under the cooperation of the crown block, after the crown block lifts the device, only one worker is required to operate a remote controller on the ground to complete the connection work of the electrode, and the operation can be completed only by 1-3 minutes when the electrode connection work is modified. The adoption of the device for connecting the electrodes can greatly save time, so as to improve the capacity working efficiency, reduce the labor cost, reduce the labor intensity and eliminate the potential safety hazard. Some cylindrical threaded butted objects can be automatically butted and screwed by using the device.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the embodiments 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 that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a hydraulic device of the present invention;
FIG. 2 is a side view of a hydraulic device of the present invention;
FIG. 3 is a schematic view of a clamping and rotating mechanism of a hydraulic device according to the present invention;
FIG. 4 is a schematic view of a bracket mechanism of a hydraulic device according to the present invention;
FIG. 5 is an enlarged partial view of FIG. 4;
FIG. 6 is a schematic diagram of a lifting balance sensing system of a hydraulic device according to the present invention;
FIG. 7 is a schematic view of the lower clamping mechanism of a hydraulic device according to the present invention;
fig. 8 is a schematic view of the upper clamping mechanism of a hydraulic device according to the present invention.
The names of the numerical references in the drawings are respectively: 1-base, 100-lower clamping mechanism, 101-upper fixed plate, 102-lower fixed plate, 103-lower clamping plate, 104-lower clamping plate pin, 105-lower connecting arm positioning pin, 106-lower connection, 107-lower hydraulic cylinder pin, 108-lower hydraulic cylinder, 2-guide bar, 201-bracket plate, 202-bracket hydraulic cylinder, 203-cylinder support, 204-bracket pin, 205-bracket drive rack, 206-bracket gear, 207-bracket plate, 3-bracket mechanism, 4-hydraulic electric cabinet, 5-upright post, 6-external frame, 7-guide wheel, 8-upper clamping mechanism, 801-upper hydraulic cylinder, 802-upper pin, 803-upper connecting arm, 804-upper connecting arm pin, 805-support, 806-upper clamping plate pin, 807-upper clamping plate, 9-hydraulic motor, 901-motor drive gear, 10-axial compensation mechanism, 1001-male screw thread, 1002-female screw thread, 11-rotary joint, 1101-oil inlet pipe 1101, 1102-oil outlet pipe, 12-lifting ring, 13-rotary mechanism, 1301-rotary joint, 18014-guide wire rope guide table, 18014-guide wire rope sensing system, 18014-guide table 1304, sensor-18-guide table 1304, sensor-18-guide wire rope sensing system, sensor-19-guide table 1304.
Detailed Description
In the description of the present invention, it should 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 the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. The terms "first," "second," and the like, 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 defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
The present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, a hydraulic device: comprising a base 1, an outer frame 6, a hydraulic motor 9, an axial compensation mechanism 10, a clamping and rotating mechanism, a swivel 11 and a hydraulic station 17.
Specifically, the base 1 comprises an upper layer of fixed plate and a lower layer of fixed plate with semicircular inner holes, and an upright guide rod 7 is arranged at the top of the fixed plate;
specifically, the outer frame 6 comprises a round cylinder with a window, the lower part of the cylinder is provided with a column 5 which can be sleeved outside a guide rod 7 at the top of the base 1, the inner side of the cylinder is provided with a guide wheel 7 in the horizontal direction, and the top of the cylinder is provided with a top cover 19;
specifically, a hydraulic motor 9 is installed on the upper outer side of the outer frame 6 in the vertical direction, and a motor transmission gear 901 is installed on the output shaft of the hydraulic motor 9;
the axial compensation mechanism 10 includes a pair of screw members provided at the center of the top cover 19, female screw threads 1002 in the screw members being mounted and fixed at the center of the top cover 19, and male screw threads 1001 in the screw members being mounted inside the female screw threads 1002 by screw-fitting.
Specifically, as shown in fig. 3, the top cover 19 is fixedly mounted on the top cover 19 of the outer frame 6 by bolts, a hole is formed in the center of the top cover 19, and female threads 1002 are mounted on the hole; the rotary cylinder is arranged inside the outer frame 6, a hole is arranged in the center of the top of the rotary cylinder, and a male thread 1001 is arranged on the hole; the female thread 1002 cooperates with the male thread 1001, and the entire rotary drum is bearing-compensated when the rotary drum rotates in the forward and reverse directions.
The clamping and rotating mechanism comprises a rotating mechanism 13 and an upper clamping mechanism 8, wherein the rotating mechanism 13 comprises a rotating cylinder 1301 arranged in an outer frame 6, the top of the rotating cylinder 1301 is connected with the top of a male thread 1001, a gear ring 14 which can rotate in a matched manner with a motor transmission gear 901 is arranged on the outer side of the upper part of the rotating cylinder 1301, a clamping notch is formed in the middle of the rotating cylinder 1301, and a guide ring table 15 which can be positioned in a matched manner with a guide wheel 7 is arranged on the outer side of the lower part of the rotating cylinder 1301; the upper clamping mechanism 8 is arranged outside the clamping notch of the rotary cylinder 1301 and is positioned inside the outer frame 6, and the upper clamping mechanism 8 comprises an upper hydraulic cylinder 801 and an upper holding clamp driven by the upper hydraulic cylinder 801.
As shown in fig. 3, the outer frame 6 is a skeleton of the whole rotating mechanism 13, the top cover 19 is a top cover 19 for clamping the rotating mechanism and is also a skeleton for bearing the weight of the rotating mechanism 13, and the top cover 19 is buckled on the outer skeleton and connected by bolts; the rotary cylinder 1301 is arranged in the frame, a gear ring 14 and a flange for installing the gear ring 14 are arranged on the rotary cylinder 1301, a male thread 1001 connected with the rotary cylinder 1301 is arranged in the center of the top of the rotary cylinder 1301, the male thread 1001 is connected with a female thread 1002 on the top cover 19, the gravity of the whole rotary cylinder 1301 is all on the connecting thread, and when the rotary cylinder 1301 rotates, the male thread 1001 also rotates so as to perform axial compensation; a rotary joint 11 for supplying oil to a hydraulic cylinder of a clamping mechanism on the rotary cylinder 1301, namely a rotary joint 11, is arranged in the male thread 1001, an oil pipe on the clamping rotary joint 11 is connected with the hydraulic cylinder, and after oil is supplied to an oil cylinder on the clamping rotary mechanism through the hydraulic rotary joint 11 when the device starts, the clamping rotary mechanism clamps a cylindrical object in the rotary cylinder; a hydraulic transmission motor is arranged on the outer frame 6, a transmission gear is arranged on the hydraulic motor 9, and when the hydraulic motor 9 rotates, the gear ring 14 on the rotary cylinder 1301 is driven to rotate and the whole rotary cylinder 1301 is driven to rotate; the guide wheels 7 are used for adjusting the concentricity by 3-4 groups of guide wheels 7 when the rotary cylinder 1301 rotates.
The rotary joint 11 is arranged in the male screw 1001, one end of an oil inlet pipe 1101 of the rotary joint 11 is connected with the hydraulic station 17, the other end of the oil inlet pipe 1101 is connected with the upper hydraulic cylinder 801, one end of an oil outlet pipe 1102 of the rotary joint 11 is connected with the hydraulic station 17, and the other end of the oil outlet pipe 1102 is connected with the upper hydraulic cylinder 801;
the hydraulic station 17 is provided at an upper portion of the outer frame 6 and is oil-circuit-connected with the hydraulic motor 9.
Specifically, the hydraulic station 17 includes a hydraulic station oil tank, an electric oil pump, a valve, an instrument, and the like, and supplies power to the clamping cylinder through a hydraulic line.
As shown in fig. 4 and 5, the bracket mechanism 2 is arranged at the bottom of the upright post 5, the bracket mechanism 2 comprises a bracket plate 201 provided with a semi-circular inner hole, a bracket hydraulic cylinder 202 connected with the hydraulic station 17, a bracket transmission rack 205, a bracket gear 206 and a bracket 207, the bracket hydraulic cylinder 202 is arranged on the bracket plate 201 through an oil cylinder support 203, a telescopic shaft of the bracket hydraulic cylinder 202 is connected with the bracket transmission rack 205 through a bracket pin shaft, one side of the bracket 207 is provided with a rack, and the bracket transmission rack 205 and the bracket 207 rack are simultaneously meshed and transmitted with the bracket gear 206.
Specifically, a bracket gear 206 and a bracket gear 206 box are arranged on a bracket plate 201, one side of a bracket plate 207 is provided with a rack, a bracket transmission rack 205 and the bracket plate 201 are arranged in a gear box, the bracket transmission rack 205 is connected with a bracket hydraulic cylinder 202 through a pin shaft, and the other end of the bracket hydraulic cylinder 202 is fixed on an oil cylinder seat through a pin shaft; when the oil cylinder is opened, the transmission rack is driven to move, the transmission rack restarts the gear to rotate, and the gear restarts the supporting plate 207 to extend and retract, so that a cylindrical object is blocked on the supporting plate 207 and cannot fall out when the supporting plate 207 extends, and the cylindrical object can be taken out after the supporting plate 207 retracts.
As shown in fig. 6, the lifting balance sensing system 18 further comprises a lifting balance sensing system 18, wherein the lifting balance sensing system 18 comprises a proximity switch sensor 1801, a detection body 1803, an indicator lamp 1802 and a controller, the proximity switch sensor 1801 is arranged on the middle outer wall of the upright post 5, the detection body 1803 is arranged on a guide rod 7 inside the upright post 5, an input port of the controller is connected with the proximity switch sensor 1801, and an output port of the controller is connected with the indicator lamp 1802.
It should be noted that the controller in this embodiment is an S7-200 SMART controller.
Specifically, when the lifting device descends, 3-4 detected objects in the upright posts 5 touch the proximity switch sensor 1801 at the same time in a horizontal state, and an indicator lamp 1802 on the device is lightened at the same time, so that the lifting device is in a horizontal state; if the device is not in a horizontal state when descending, the detected objects in the upright posts 5 cannot be close to the switch sensor 1801 at the same time, deviation of the lifting device is proved if the detected objects in the upright posts 5 are not released from the proximity switch, the corresponding indicator lamps 1802 on the lifting device cannot be lightened, and an operator needs to operate the device to adjust the device horizontally.
As shown in fig. 7, the base 1 includes a lower clamping mechanism 100, and the lower clamping mechanism 100 is disposed between upper and lower fixing plates, which are divided into an upper fixing plate 101 and a lower fixing plate 102. The lower clamping mechanism 100 comprises a lower hydraulic cylinder 108 connected with the hydraulic station 17 and a lower holding clamp driven by the lower hydraulic cylinder 108, wherein the holding clamp comprises a lower clamping plate 103 and an L-shaped lower connecting arm 104; the telescopic shaft of the lower hydraulic cylinder 108 is connected with one end of an L-shaped lower connecting arm 104 through a lower pin 106, the other end of the L-shaped lower connecting arm 104 is connected with a lower clamping plate 103 through a lower clamping plate 103 pin, and the middle part of the L-shaped lower connecting arm 104 is arranged on a base 1 support through a lower connecting arm positioning pin 105.
Specifically, when the lower hydraulic cylinder 108 is opened, one end of the L-shaped lower connecting arm 104 is driven to move outwards, the other end of the L-shaped lower connecting arm moves inwards, and the connected lower clamping plate 103 clamps an object after moving inwards.
As shown in fig. 8, the upper holding clamp for the upper clamping device comprises an L-shaped upper connecting arm 803 and an upper clamping plate, one end of the upper hydraulic cylinder 108 is connected with the L-shaped upper connecting arm 803 through an upper pin, the other end of the L-shaped upper connecting arm 803 is connected with the upper clamping plate 807 through an upper clamping plate pin 806, the middle part of the L-shaped upper connecting arm 803 is mounted on the rotary cylinder 1301 support through an upper connecting arm pin 804, and a limit stop 1304 for limiting the upper clamping plate to outwards displace is arranged on the outer side of the clamping notch of the rotary cylinder 1301.
Specifically, two notches are formed in the 180-degree symmetrical position of the rotary cylinder 1301, a support is arranged on each notch edge, an upper clamping plate 807 is arranged on each of the two openings, an L-shaped upper connecting arm 803 is arranged on each upper clamping plate 807, three connecting holes are formed in the two ends and the middle of each L-shaped upper connecting arm 803, a pin shaft is used for fixing the holes in the middle of each connecting arm on the support, the connecting holes at the top ends of each L-shaped upper connecting arm 803 are connected with the connecting holes of the upper clamping plate 807 through pin shafts, and an upper hydraulic cylinder 108 is arranged between the tail ends of the two L-shaped upper connecting arms 803 and connected through pin shafts. When the upper hydraulic cylinder 108 is extended and opened, the L-shaped upper connecting arms 803 are driven to be opened outwards, and the upper clamping plates 807 at the top ends of the 2L-shaped upper connecting arms 803 move into the cylinder body and clamp objects in the cylinder body.
Further, a hanging ring is arranged at the top of the top cover 19.
Further, a steel wire rope sleeve is arranged between the base 1 and the frame for connection. The wire rope loop mainly plays a role of connecting the base 1 and the outer frame 6. The steel pipe guide rod 7 welded on the base 1 is required to penetrate into the steel pipe upright 5 welded at the bottom of the frame, the purpose is not to deviate the base 1 from the center of the whole device, the distance between the whole frame and the base 1 is not fixed along with the rotation of the electrode threads, but cannot exceed the length of the threads on the electrode, so that only flexible connection can be adopted, and the toughness and the strength of the steel wire rope sleeve are very suitable.
Further, the hydraulic power station also comprises a hydraulic power control cabinet arranged on the side face of the upright post 5, and the hydraulic power control cabinet is connected with the hydraulic station 17 and electric equipment in the device.
Specifically, the hydraulic electric control cabinet includes a power distribution box for supplying power to the electric motor of the hydraulic station 17, and a control box for controlling the actions of all the electric devices.
In actual operation, a new electrode is firstly put into a hydraulic device on the ground, after the electrode is erected, an extension device is lifted by a crown block and an axial compensation mechanism 10 through a lifting mechanism to sit on the erected electrode, an upper hydraulic cylinder 108 is started, an upper clamping mechanism 8 clamps the electrode, and the electrode-mounting operation is completed; when the electrode needs to be lengthened, an overhead travelling crane and an axial compensation mechanism 10 are used for hanging the lengthening device filled with the new electrode to the top of the electric furnace and contacting the old electrode on the electric furnace, and an operator uses a remote controller or a hydraulic control box to enable a lower clamping mechanism 100 on the base 1 to open and clamp the old electrode on the electric furnace; starting a lower hydraulic cylinder to automatically position the band-type brake clamping electrode, operating a clamping rotating mechanism provided with a new electrode through a remote controller or a hydraulic control box after positioning, and simultaneously commanding the crown block and the axial compensation mechanism 10 to start descending; with the descent of the lengthening device and the continuous rotation of the rotating mechanism, the screw threads on the new electrode and the screw threads on the old electrode realize butt joint, and the rotating mechanism automatically stops working after being screwed to a certain degree according to the torque set in advance; at the moment, the upper band-type brake and the lower band-type brake are loosened through remote control and hydraulic control box operation, and then the lengthening device is lifted off the top of the electric furnace, so that the whole lengthening work is completed.
The hydraulic device has the following beneficial effects:
the invention provides a hydraulic device which can automatically butt-joint and screw up a cylinder with threads, is particularly suitable for electrode connection work, and can greatly improve the working efficiency, reduce the labor cost and the labor intensity and eliminate the potential safety hazard by adopting the device to connect with the electrodes. Has the following main advantages:
1. the axial compensation mechanism 10 can realize expansion and contraction of the clamping cylinder, and when the rotary cylinder 1301 rotates positively and negatively, the whole rotary cylinder 1301 can perform bearing compensation.
2. The clamping and rotating mechanism not only can realize stable clamping of the inner cylinder, but also can realize stable rotation of the clamping cylinder.
3. The upper clamping mechanism 8, the bracket mechanism 2 and the lower clamping mechanism 100 can greatly ensure the position of the clamping cylinder, and eliminate potential safety hazards.
4. The lift balance sensing system 18 can detect whether the device is in a horizontal position when it is lowered, and the indicator light 1802 facilitates the operator's adjustment of the device to a horizontal position.
When the hydraulic device provided by the invention is used for connecting the threaded cylindrical electrode, the whole device is not required to be powered off and shut down when the electrode is connected, the whole device is subjected to insulation treatment, workers do not need to climb to the furnace top to perform manual operation, the device can automatically load the electrode into the device under the cooperation of the crown block, after the crown block lifts the device, only one worker is required to operate a remote controller on the ground to complete the connection work of the electrode, and the operation can be completed only by 1-3 minutes when the electrode connection work is modified. The adoption of the device for connecting the electrodes can greatly save time, so as to improve the capacity working efficiency, reduce the labor cost, reduce the labor intensity and eliminate the potential safety hazard. Some cylindrical threaded butted objects can be automatically butted and screwed by using the device.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. A hydraulic device, characterized in that: including base, external frame, hydraulic motor, axial compensating mechanism, centre gripping rotary mechanism, rotary joint and hydraulic pressure station, wherein:
the base comprises an upper layer of fixed plate and a lower layer of fixed plate with semicircular inner holes, and an upright guide rod is arranged at the top of the fixed plate; the base comprises a lower clamping mechanism, wherein the lower clamping mechanism is arranged between an upper layer of fixing plate and a lower layer of fixing plate, comprises a lower hydraulic cylinder connected with a hydraulic station and a lower holding clamp driven by the lower hydraulic cylinder, and comprises a lower clamping plate and an L-shaped lower connecting arm; the telescopic shaft of the lower hydraulic cylinder is connected with one end of an L-shaped lower connecting arm through a lower pin shaft, the other end of the L-shaped lower connecting arm is connected with a lower clamping plate through a lower clamping plate pin shaft, and the middle part of the L-shaped lower connecting arm is arranged on the base support through a lower connecting arm positioning pin shaft;
the outer frame comprises a round cylinder body with a window, a stand column which can be sleeved outside a guide rod at the top of the base is arranged at the lower part of the cylinder body, a guide wheel in the horizontal direction is arranged at the inner side of the cylinder body, and a top cover is arranged at the top of the cylinder body;
the hydraulic motor is arranged on the outer side of the upper part of the outer frame along the vertical direction, and a motor transmission gear is arranged on an output shaft of the hydraulic motor;
the axial compensation mechanism comprises a pair of screw thread components arranged in the center of the top cover, female threads in the screw thread components are fixedly arranged in the center of the top cover, and male threads in the screw thread components are arranged in the female threads in a threaded fit manner;
the clamping and rotating mechanism comprises a rotating mechanism and an upper clamping mechanism, the rotating mechanism comprises a rotating cylinder arranged in an outer frame, the top of the rotating cylinder is connected with the top of a male thread, a gear ring which can rotate in a matched manner with a motor transmission gear is arranged on the outer side of the upper part of the rotating cylinder, a clamping notch is formed in the middle of the rotating cylinder, and a guide ring table which can be matched and positioned with a guide wheel is arranged on the outer side of the lower part of the rotating cylinder; the upper clamping mechanism is arranged outside the clamping notch of the rotating collet and positioned inside the outer frame, and comprises an upper hydraulic cylinder and an upper holding clamp driven by the upper hydraulic cylinder;
the rotary joint is arranged in the male thread, one end of an oil inlet pipe of the rotary joint is connected with the hydraulic station, the other end of the oil inlet pipe is connected with the upper hydraulic cylinder, one end of an oil outlet pipe of the rotary joint is connected with the hydraulic station, and the other end of the oil outlet pipe is connected with the upper hydraulic cylinder;
the hydraulic station is arranged at the upper part of the outer frame and is connected with the oil way of the hydraulic motor;
when a new electrode is installed in the hydraulic device, after the electrode is erected, the crown block and the axial compensation mechanism are used for lifting the lengthening device through the lifting mechanism to sit on the erected electrode, the upper hydraulic cylinder is started, the upper clamping mechanism clamps the electrode, and the electrode installation work is completed;
when the electrode needs to be lengthened, an overhead travelling crane and an axial compensation mechanism are used for hanging the lengthening device filled with the new electrode to the top of the electric furnace and contacting the old electrode on the electric furnace, and an operator uses a remote controller or a hydraulic control box to enable a lower clamping mechanism on the base to open and clamp the old electrode on the electric furnace; starting a lower hydraulic cylinder to automatically position the band-type brake clamping electrode, operating a clamping rotating mechanism provided with a new electrode through a remote controller or a hydraulic control box after positioning, and simultaneously commanding the crown block and the axial compensation mechanism to start descending; with the descent of the lengthening device and the continuous rotation of the rotating mechanism, the screw threads on the new electrode and the screw threads on the old electrode realize butt joint, and the rotating mechanism automatically stops working after being screwed to a certain degree according to the torque set in advance; at the moment, the upper band-type brake and the lower band-type brake are loosened through remote control and hydraulic control box operation, and then the lengthening device is lifted off the top of the electric furnace, so that the whole lengthening work is completed.
2. The hydraulic device of claim 1, wherein: still including setting up the bracket mechanism in the stand bottom, bracket mechanism is including the bracket board that is equipped with the semicircle hole, the bracket pneumatic cylinder that is connected with the hydraulic pressure station, bracket transmission rack, bracket gear and layer board, and the bracket pneumatic cylinder passes through the hydro-cylinder support and installs on the bracket board, the telescopic shaft of bracket pneumatic cylinder has bracket transmission rack through the bracket round pin hub connection, one side of layer board is equipped with the rack, bracket transmission rack and layer board rack simultaneously with bracket gear engagement transmission.
3. The hydraulic device of claim 2, wherein: the lifting balance sensing system comprises a proximity switch sensor, a detection body, an indicator light and a controller, wherein the proximity switch sensor is arranged on the outer wall of the middle of the upright post, the detection body is arranged on a guide rod inside the upright post, an input port of the controller is connected with the proximity switch sensor, and an output port of the controller is connected with the indicator light.
4. The hydraulic device of claim 1, wherein: the upper portion of upper portion centre gripping is held and is pressed from both sides including L type upper arm and punch holder, upper portion pneumatic cylinder one end is through upper portion round pin hub connection L type upper arm, the other end of L type upper arm is through punch holder round pin hub connection punch holder, and the middle part of L type upper arm is installed on the rotary drum support through the upper arm round pin hub, the outside of the breach is held to the rotary drum is provided with the limit stop that restriction punch holder outwards displaces.
5. The hydraulic device of claim 4, wherein: the top of the top cover is provided with a hanging ring.
6. The hydraulic device of claim 5, wherein: a steel wire rope sleeve is arranged between the base and the frame for connection.
7. The hydraulic device of claim 6, wherein: the hydraulic electric control cabinet is arranged on the side face of the upright post and is connected with the hydraulic station and electric equipment in the device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710219035.8A CN106975912B (en) | 2017-04-06 | 2017-04-06 | Hydraulic device |
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| CN201710219035.8A CN106975912B (en) | 2017-04-06 | 2017-04-06 | Hydraulic device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112008350A (en) * | 2019-05-28 | 2020-12-01 | 西冶科技集团股份有限公司 | Automatic electrode lengthening device |
| CN117650406B (en) * | 2024-01-29 | 2024-05-28 | 苏州朗信智能科技有限公司 | Electrode lengthening robot |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0945475A (en) * | 1995-07-31 | 1997-02-14 | Fukuyama Tanko Zoki Kk | Electrode connection device |
| CN201467507U (en) * | 2009-07-11 | 2010-05-12 | 山西太钢不锈钢股份有限公司 | Joining device of electrodes |
| CN103358115A (en) * | 2013-07-16 | 2013-10-23 | 代军峰 | Device for automatically lengthening graphite electrode |
| CN204171657U (en) * | 2014-10-20 | 2015-02-25 | 中国西电集团公司 | A kind of graphite electrode automatic screwing device |
| CN104654806B (en) * | 2015-02-14 | 2016-04-13 | 攀枝花攀钢集团设计研究院有限公司 | The graphite electrode spreading mechanism of metallurgical electric furnace |
| CN104914520B (en) * | 2015-05-25 | 2016-07-06 | 中南大学 | A kind of three-body type coaxial type opto-electronic device automatic coupling device |
| CN105499976B (en) * | 2016-02-17 | 2017-08-25 | 哈尔滨博实自动化股份有限公司 | Arc burner bus automatic butt machinery hand |
| CN206717402U (en) * | 2017-04-06 | 2017-12-08 | 西安华创冶金科技有限公司 | A kind of hydraulic means |
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