CN218395916U - Fixed-point automatic adding and taking system for ladle heat-insulation cover - Google Patents

Abstract

The utility model discloses an automatic system of getting of fixed point that is used for ladle heat preservation lid, it adds gets the device and includes to follow the portable setting of horizontal direction and add on changing to the rail and get the frame, it is connected with a plurality of and the connecting axle one-to-one insert the arm body to add to get to rotate on the frame, the connecting axle correspondence can be dismantled and peg graft in inserting the arm body, it is equipped with a plurality of synchronous pivoted lift shafts to add to get to rotate on the frame, lift shaft cooperation cover has the lift arm that is located to insert arm body top, the lift arm rotates along vertical direction swing along with the lift shaft, the one end of lift arm is fixed on the lift shaft, the other end with insert arm body swing joint, the lift shaft still is supporting to be used for driving its pivoted and changes to the swing arm, the ladle that the heat preservation lid removes to adding after getting device below, change to insert the arm and remove to the low level, and insert the connecting axle department that the heat preservation was covered, it drives the connecting axle through changing to the direction of changing to the in-course of going back and the heat preservation lid and lift and the translation, cover the supporting seat through changing to the dodging effect of changing to the rail.

Description

Fixed-point automatic adding and taking system for ladle heat-insulation cover

Technical Field

The utility model relates to a metallurgical equipment technical field especially relates to an automatic system of getting that adds of fixed point for ladle heat preservation lid.

Background

The short flow is directly selected by new factory construction, namely the distance from the iron works to the steel works is short, and a mode of one tank to the bottom is adopted. Namely, the blast furnace tapping and the molten iron transportation, the molten iron desulphurization and the molten iron charging to the converter all use the same ladle, and the ladle is not turned over in the midway. After tapping, the blast furnace directly transports the ladle into a charging bay of a steelmaking workshop through transportation. And the ladle is hoisted to a desulfurization trolley of the molten iron desulfurization device by the feeding cross-casting crane and is transported to a desulfurization cross-KR desulfurization station for desulfurization through a desulfurization ladle trolley. And after desulfurization, hoisting the iron ladle to the front of the converter by a feeding cross-casting crane to perform iron charging. And the iron ladle after iron charging is hoisted to an iron ladle transport vehicle by a charging cross-casting crane, and the iron ladle is transported to a blast furnace casting house by the special iron ladle transport vehicle to wait for next casting. The transfer time is long, a special process is arranged in the middle, if a fixed-point automatic cover adding and taking heat preservation device is additionally arranged in the process to preserve heat of molten iron, and a cover is arranged when the molten iron is mixed, the environment protection has great effect, but the traditional heat preservation device cannot be matched with a new process, so that the production is not smooth.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an automatic system of getting of fixed point that adds for ladle heat preservation lid to solve the problem that above-mentioned prior art exists, need not to adopt fork truck or lifting device etc. again, can accomplish promptly to heat preservation lid add get and promote work, whole add get simple, convenient and labour saving and time saving of work, can realize taking heat preservation lid again and convert the function of iron/molten steel.

In order to achieve the above purpose, the utility model provides a following scheme: the utility model provides a fixed point automatic adding and taking system for a ladle heat preservation cover, which comprises a direction changing rail arranged at the top of the ladle and an adding and taking device matched with the direction changing rail, wherein the direction changing rail comprises two flat section rails horizontally extending along the returning direction of the adding and taking device, the flat section rail positioned at the front side is higher than the flat section rail positioned at the rear side, and a gentle slope head is connected between the two flat section rails;

the top of the heat-insulation cover is provided with a plurality of connecting shafts which are distributed at equal intervals along the horizontal extending direction of the flat section rail, the adding and taking device comprises an adding and taking frame which is movably arranged on the direction-changing rail along the horizontal direction, the adding and taking frame is rotatably connected with a plurality of inserting arm bodies which are in one-to-one correspondence with the connecting shafts, and the connecting shafts are correspondingly detachably inserted into the inserting arm bodies; it is equipped with a plurality of synchronous pivoted lifting shafts to add to get on the frame, the lifting shaft is supporting to be located insert the lifting arm of arm body top, the lifting arm follows the lifting shaft rotates along vertical direction swing, the one end of lifting arm is fixed on the lifting shaft, the other end with insert arm body swing joint, the lifting shaft still is supporting to be used for driving its pivoted and changes to the swing arm, change to the one end of swing arm and fix on the lifting shaft, the other end passes gentle slope head and successive butt are two on the flat section rail.

Preferably, the inserting arm body comprises an inserting section extending horizontally and a connecting section connected with the inserting section, the connecting section is rotatably connected to the adding and taking frame, the inserting section is provided with safety teeth, and the connecting shaft is detachably inserted into the safety teeth.

Preferably, a universal chain for horizontally lifting the inserting section is connected between the inserting section and the lifting arm.

Preferably, the heat preservation cover is located at the top of the ladle, and when the connecting shaft is correspondingly inserted into the inserting arm body, one of the redirection swing arms abuts against the lower flat section rail and abuts against the bottom of the gentle slope head, and the rest redirection swing arms are arranged above the corresponding flat section rail at intervals.

Preferably, a synchronous connecting plate arranged at an interval with the flat section rail is arranged between every two adjacent direction-changing swing arms, and two ends of the synchronous connecting plate are respectively hinged to the corresponding direction-changing swing arms.

Preferably, the adding and taking frame is provided with two groups of pulley assemblies in a matched mode, each pulley assembly is arranged along the returning direction of the adding and taking device, an interval for accommodating the inserting arm body and the direction-changing swing arm is formed between the two pulley assemblies, and horizontal sliding rails which extend horizontally and are used for the pulley assemblies to move are arranged on two sides of the direction-changing rails.

Preferably, the adding and taking frame is further matched with a power assembly used for driving the adding and taking frame to slide along the flat section rail, the power assembly comprises a motor and a winding drum connected to a driving shaft of the motor, a chain wheel synchronously rotating with the winding drum is coaxially connected to the winding drum, and a guide chain connected with the adding and taking frame is meshed with the chain wheel.

Preferably, the flat section rail is matched with a rack, the rack comprises support legs and a beam platform used for installing the flat section rail, and the beam platform is provided with a fixed pulley assembly used for guiding the guide chain.

Preferably, the beam platform comprises an installation part and an overhaul part which are distributed along the withdrawal direction of the adding and taking device, the foundry ladle is correspondingly placed below the installation part, and the overhaul part is provided with an overhaul platform which is used for aligning the adding and taking frame and the heat preservation cover for maintenance.

Preferably, the heat preservation cover comprises a heat preservation cover body, a plurality of shaft seats used for installing connecting shafts are arranged on the heat preservation cover body, and a heat insulation layer is arranged between each shaft seat and the heat preservation cover body.

The utility model discloses for prior art gain following technological effect:

firstly, because the two flat section rails are different in height and a gentle slope head is connected between the two flat section rails, the redirection swing arm is abutted to the flat section rails and slides along the extending direction of the flat section rails, in the advancing and retreating directions of the whole adding and taking device, the redirection swing arm crosses the gentle slope head, particularly in the advancing process of the adding and taking device, the redirection swing arm moves from the higher flat section rail to the lower flat section rail and crosses the gentle slope head, the redirection swing arm swings downwards for a certain distance, the redirection swing arm rotates a lifting shaft connected with the redirection swing arm while swinging, a lifting shaft belt lifting arm swings downwards, an inserting arm body synchronously swings downwards under the action of the lifting arm, an adding and taking frame of the adding and taking device synchronously moves forwards, the inserting arm body is inserted and connected onto a connecting shaft of a heat preservation cover, the fixing of the heat preservation cover is completed, further, in the retreating process of the adding and taking device, the redirection swing arm moves from the lower flat section rail to the higher flat section rail, the redirection swing arm crosses the gentle slope head upwards for a certain distance, the redirection swing arm rotates the lifting shaft connected with the lifting shaft while swinging arm, the lifting shaft is convenient to lift the inserting and taking device, the heat preservation cover, the whole heat preservation cover is lifted and the heat preservation cover, and the heat preservation cover is lifted, and the heat preservation device is convenient to be lifted and the heat preservation device.

The second, insert the grafting section that the arm body includes the level and extends, the linkage segment of being connected with the grafting section, the linkage segment rotates to be connected on adding and getting the frame, be equipped with safe tooth on the grafting section, the grafting can be dismantled to the connecting axle and peg graft on safe tooth, rotate through the linkage segment and set up on adding and getting the frame, in order to make things convenient for in the wobbling of hoisting arm, can conveniently adjust the swing state of grafting section, and then extend the setting through the grafting section level, make things convenient for the grafting section to peg graft in connecting axle department, and the grafting section sets up safe tooth, avoid the connecting axle to drop from the grafting section, guarantee the fastness of grafting section and connecting axle connection.

The third, be connected with the universal chain that is used for mentioning the grafting section level between grafting section and the lifting arm, through setting up universal chain, not only conveniently mention the grafting section through the lifting arm, can not cause the injecing because of the lifting arm to the grafting section moreover, promptly through setting up universal chain, form swing joint between lifting arm and grafting section to guarantee the level setting of grafting section, with the structure of adaptation connecting axle, and grafting that can be accurate is in connecting axle department.

Fourthly, the heat preservation lid is located ladle top position department, and when the connecting axle corresponds the grafting in inserting the arm body, change to the swing arm butt on lower flat section rail, and paste and lean on the bottom at the gentle slope head, all the rest change to the swing arm and all set up the top at the flat section rail that corresponds at an interval, change to the swing arm through single promptly in order indirectly to accomplish the drive and the lifting of grafting section to the lift arm, when avoiding moving along adding the frame advancing direction, the change to the swing arm downhill path of front side, and then when swinging downwards, change to the swing arm of rear side receives the restriction of higher flat section rail, can not swing in step, influence the adjustment to the grafting section.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.

FIG. 1 is a schematic view showing the positional relationship among the whole frame, the ladle and the feeding device of the present invention;

FIG. 2 is a schematic view of the structure of the feeding device of the present invention;

FIG. 3 is a schematic view of the engagement between the loading device and the thermal insulation cover;

FIG. 4 is a schematic view of the structure of the power assembly

Wherein, 1-adding frame, 2-lifting arm, 3-lifting shaft, 4-redirection swing arm, 5-insertion section, 6-connection section, 7-flat section rail, 8-gentle slope head, 9-connection shaft, 10-shaft seat, 11-ladle, 12-maintenance part, 13-guide chain and 14-chain wheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

The utility model aims at providing an automatic system of getting of fixed point for ladle heat preservation lid to solve the problem that above-mentioned prior art exists, need not to adopt fork truck or lifting device etc. again, can accomplish promptly to heat preservation lid add get with promote work, whole add get simple, convenient and labour saving and time saving of work.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 to 4, the present embodiment provides a fixed point automatic adding and taking system for a ladle heat preservation cover, including a direction changing rail installed at a top position of a ladle 11, and an adding and taking device configured with the direction changing rail, where the direction changing rail includes two flat section rails 7 extending horizontally along a retraction direction of the adding and taking device, the flat section rail 7 located at a front side is higher than the flat section rail 7 located at a rear side, a gentle slope head 8 is connected between the two flat section rails 7, preferably, a height difference of about 150mm to 250mm is formed by staggered arrangement of the two flat section rails 7, and an angle of the gentle slope head 8 is about 30 ° to 65 °;

the top of the heat preservation cover is provided with a plurality of connecting shafts 9 which are distributed at equal intervals along the horizontal extension direction of the flat section rail 7, the adding and taking device comprises an adding and taking frame 1 which is movably arranged on the direction-changing rail along the horizontal direction, the preferable adding and taking frame 1 is of a profile steel structure so as to enhance the structural strength of the adding and taking frame 1, the adding and taking frame 1 is rotatably connected with a plurality of inserting arm bodies which are in one-to-one correspondence with the connecting shafts 9, and the connecting shafts 9 are correspondingly detachably inserted into the inserting arm bodies; the heating and taking frame 1 is provided with a plurality of lifting shafts 3 which synchronously rotate, the lifting shafts 3 are matched with lifting arms 2 positioned above the inserting arm bodies, the lifting arms 2 swing along the vertical direction along with the rotation of the lifting shafts 3, one ends of the lifting arms 2 are fixed on the lifting shafts 3, the other ends of the lifting arms are movably connected with the inserting arm bodies, the lifting shafts 3 are also matched with direction-changing swing arms 4 for driving the lifting shafts to rotate, one ends of the direction-changing swing arms 4 are fixed on the lifting shafts 3, the other ends of the direction-changing swing arms cross the gentle slope heads 8 and abut against the two flat rails 7 in sequence, after a ladle 11 with a heat-preserving cover moves below the heating and taking device, the direction-changing inserting arms move to a low position and are inserted at a connecting shaft 9 on the heat-preserving cover, the heating and taking frame 1 starts to retreat, the connecting shaft 9 and the heat-preserving cover are driven to lift and translate through the direction-changing arms in the retreating process, the heat-preserving cover avoids a supporting seat of the heat-preserving cover to open the ladle 11 under the direction-changing action of the direction changing rails, after the heat-preserving cover enters a higher flat rail 7, the heat-preserving cover keeps the same height under the drive of the direction-changing arm, and continues to retreat, and the heat-preserving cover leaves the heat-preserving cover to move to avoid the heat-taking action.

Because the two flat section rails 7 are different in height and the gentle slope head 8 is connected between the two flat section rails 7, the redirection swing arm 4 is abutted to the flat section rails 7 and slides along the extension direction of the flat section rails 7, in the advancing and retreating direction of the whole adding and taking device, the redirection swing arm 4 crosses the gentle slope head 8, particularly, in the advancing process of the adding and taking device, the redirection swing arm 4 moves from the higher flat section rail 7 to the lower flat section rail 7 and crosses the gentle slope head 8, so that the redirection swing arm 4 swings downwards for a certain distance, the redirection swing arm 4 rotates the lifting shaft 3 connected with the redirection swing arm 4 while swinging, the lifting shaft 3 is provided with the lifting arm 2 to swing downwards, the inserting arm body synchronously swings downwards under the action of the lifting arm 2, and the adding and taking frame 1 of the adding and taking device synchronously moves forwards, the utility model discloses a make and insert arm body and peg graft on the connecting axle 9 that keeps warm and cover, accomplish the fixing to the heat preservation cover, it is further, in the in-process of getting the device fallback adding, change to swing arm 4 and remove to higher flat section rail 7 by lower flat section rail 7, cross gentle slope head 8, make and change to swing arm 4 certain distance up, change to swing arm 4 and rotate the lifting shaft 3 rather than being connected in the wobbling, lifting shaft 3 area lifting arm 2 swings up, lifting arm 2 area is inserted the arm body and is upwards lifted up connecting axle 9 and heat preservation cover, accomplish the promotion work to the heat preservation cover, and along with the removal of getting frame 1, it takes away ladle 11 to drive the heat preservation cover, and then need not to adopt fork truck or lifting device etc. again, the whole work of getting is simple, convenient and labour saving and time saving.

Wherein, insert the arm body and include grafting section 5 that the level extends, linkage segment 6 that is connected with grafting section 5, linkage segment 6 rotates to be connected on adding and getting frame 1, be equipped with safe tooth on grafting section 5, peg graft on safe tooth can be dismantled to connecting axle 9, rotate through linkage segment 6 and set up adding on getting frame 1, in order to make things convenient for when lifting arm 2 wobbling, can conveniently adjust the swing state of grafting section 5, and then extend the setting through 5 levels of grafting section, make things convenient for grafting section 5 to peg graft in connecting axle 9 department, and grafting section 5 sets up safe tooth, avoid connecting axle 9 to drop from grafting section 5, guarantee the fastness that grafting section 5 and connecting axle 9 are connected.

Moreover, be connected with the universal chain that is used for mentioning grafting section 5 level between grafting section 5 and the lifting arm 2, through setting up universal chain, not only conveniently mention grafting section 5 through lifting arm 2, and can not cause the injecing because of lifting arm 2 to grafting section 5, promptly through setting up universal chain, form swing joint between lifting arm 2 and grafting section 5, in order to guarantee the level setting of grafting section 5, with the structure of adaptation connecting axle 9, and grafting that can be accurate is in connecting axle 9 department.

Further, the heat preservation lid is located ladle 11 top position department, and when connecting axle 9 corresponds the grafting in inserting the arm body, change to swing arm 4 butt on lower flat section rail 7, and paste and lean on in the bottom of gentle slope head 8, all the other change to swing arm 4 and all set up the top at corresponding flat section rail 7 at interval, through singly changing to swing arm 4 with the indirect drive of accomplishing lifting arm 2 and the lifting of grafting section 5 promptly, when avoiding removing along adding frame 1 advancing direction, change to swing arm 4 downhill path of front side, and then when swinging downwards, change to swing arm 4 of rear side receives the restriction of higher flat section rail 7, can not the synchronous swing, influence the adjustment to grafting section 5.

Preferably, a synchronous connecting plate arranged at an interval with the flat section rail 7 is arranged between every two adjacent direction-changing swing arms 4, and two ends of the synchronous connecting plate are respectively hinged to the corresponding direction-changing swing arms 4 to ensure synchronous action of the direction-changing swing arms 4, so that the inserting sections 5 of the direction-changing swing arms 4 can be simultaneously aligned to the connecting shafts 9 on the heat-insulating cover, and the heat-insulating cover is stably lifted and moved.

Further, add and get frame 1 and be supporting with two sets of loose pulley assemblies, each loose pulley assembly is arranged along adding the device direction of returning of getting, have between two loose pulley assemblies and be used for holding the interval of inserting arm body and changing to swing arm 4, the both sides of changing to the rail all are equipped with the horizontal slide rail that the level extends and supply loose pulley assembly to move, at the in-process that adds and get frame 1 and remove, it keeps the ascending removal of horizontal direction all the time, so that change to swing arm 4 can the adaptability along changing to the rail and remove, and then drive lift shaft 3 and lift arm 2's rotation.

The feeding frame 1 is also matched with a power assembly for driving the feeding frame to slide along the flat section rail 7, the power assembly comprises a motor and a winding drum connected to a driving shaft of the motor, a chain wheel 14 which rotates synchronously with the winding drum is coaxially connected to the winding drum, the chain wheel 14 is meshed with a guide chain 13 connected with the feeding frame 1, the winding drum and the chain wheel 14 are driven to rotate by the motor, the feeding frame 1 is further pulled to move by the guide chain 13, a speed reducer is preferably in transmission connection between the motor and the winding drum, a fixed pulley is preferably in transmission connection with the guide chain 13, the guide chain 13 is further in meshing connection with the fixed pulley through the matching of the fixed pulley and the chain wheel 14, the circulating transmission of the guide chain 13 is ensured, the feeding frame 1 is ensured to walk along a fixed track, an adjusting screw and a tension wheel in transmission connection with the guide chain 13 are further arranged, and the tension wheel is tightly pressed by the adjusting screw to adjust the tension effect of the guide chain 13.

Wherein, flat section rail 7 is supporting to be had the frame, the frame includes the supporting leg and is used for installing flat section rail 7's crossbeam platform, and be equipped with on the crossbeam platform and be used for leading 13 leading fixed pulley assembly of chain, through setting up the frame in order to add the device of getting, flat section rail 7, pulley assembly and power assembly install and make somebody a mere figurehead, so at the in-process of actual operation, make things convenient for the ladle 11 fixed point removal to the frame of operating personnel driving band heat preservation lid, and correspond and add the device of getting, conveniently add the device and accomplish to add the work of getting to the heat preservation lid, wherein preferred supporting leg adopts the equal section bar welded molding, the supporting leg lower part increases insulating brick, crossbeam platform lower part is equipped with the insulating layer, leave the mounting hole and the fixed position of each equipment above the crossbeam platform.

Further, the crossbeam platform includes along adding installation department and the maintenance portion 12 that gets the device and return the direction distribution, and ladle 11 corresponds places in the below of installation department, and maintenance portion 12 department is equipped with and is used for adding the maintenance platform of getting frame 1 and heat preservation lid maintenance. Preferably, the maintenance platform is additionally provided with a railing and a ladder stand, and is additionally provided with an anti-skid plate for safe maintenance.

And the heat preservation cover comprises a heat preservation cover body, a plurality of shaft seats 10 used for installing the connecting shafts 9 are arranged on the heat preservation cover body, and a heat insulation layer is arranged between the shaft seats 10 and the heat preservation cover body. The preferred heat preservation lid is frame construction, and the insulating layer setting is in frame construction intermediate position department, and preferably installs anti-disengaging structure in frame construction's one end, and anti-disengaging structure increases prevents weighing down the dog.

The adaptability that goes on according to the actual demand all is in the protection scope of the utility model.

It should be noted that, as is obvious to a person skilled in the art, the invention is not limited to details of the above-described exemplary embodiments, but can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The principle and the implementation mode of the utility model are explained by applying a specific embodiment, and the explanation of the embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims (10)

1. A fixed-point automatic adding and taking system for a ladle heat-insulating cover is characterized by comprising a redirection rail and an adding and taking device, wherein the redirection rail is arranged at the top of a ladle, the adding and taking device is matched with the redirection rail, the redirection rail comprises two flat section rails horizontally extending along the returning direction of the adding and taking device, the flat section rail positioned on the front side is higher than the flat section rail positioned on the rear side, and a gentle slope head is connected between the two flat section rails;

the top of the heat-insulation cover is provided with a plurality of connecting shafts which are distributed at equal intervals along the horizontal extending direction of the flat section rail, the adding and taking device comprises an adding and taking frame which is movably arranged on the direction-changing rail along the horizontal direction, the adding and taking frame is rotatably connected with a plurality of inserting arm bodies which are in one-to-one correspondence with the connecting shafts, and the connecting shafts are correspondingly detachably inserted into the inserting arm bodies; it is equipped with a plurality of synchronous pivoted lifting shafts to add to get to rotate on the frame, the lifting shaft is supporting to have and is located insert the lifting arm of arm body top, the lifting arm follows the lifting shaft rotates along vertical direction swing, the one end of lifting arm is fixed on the lifting shaft, the other end with insert arm body swing joint, the lifting shaft still is supporting to be used for driving its pivoted and changes the swing arm, the one end that changes the swing arm is fixed on the lifting shaft, the other end crosses gentle slope head and successively butt are two on the flat section rail.

2. The fixed-point automatic adding and taking system for the ladle heat-insulating cover according to claim 1, wherein the inserting arm body comprises an inserting section extending horizontally and a connecting section connected with the inserting section, the connecting section is rotatably connected to the adding and taking frame, the inserting section is provided with safety teeth, and the connecting shaft is detachably connected to the safety teeth in an inserting mode.

3. The fixed-point automatic adding and taking system for the ladle heat-insulating cover according to claim 2, wherein a universal chain for horizontally lifting the inserting section is connected between the inserting section and the lifting arm.

4. The fixed-point automatic adding and taking system for the ladle heat-insulating cover as claimed in claim 2 or 3, wherein the heat-insulating cover is located at the top of the ladle, and when the connecting shaft is correspondingly inserted into the inserting arm body, one of the redirecting swing arms abuts against the lower flat section rail and abuts against the bottom of the gentle slope head, and the rest redirecting swing arms are arranged above the corresponding flat section rail at intervals.

5. The fixed-point automatic adding and taking system for the ladle heat-insulating cover according to claim 4, wherein a synchronous connecting plate arranged at an interval with the flat section rail is arranged between every two adjacent redirection swing arms, and two ends of the synchronous connecting plate are respectively hinged to the corresponding redirection swing arms.

6. The fixed-point automatic adding and taking system for the ladle heat-insulating cover according to claim 5, wherein two sets of pulley assemblies are matched with the adding and taking frame, each pulley assembly is arranged along the returning direction of the adding and taking device, a space for accommodating the inserting arm body and the direction-changing swing arm is arranged between the two pulley assemblies, and horizontal sliding rails which extend horizontally and are used for the pulley assemblies to move are arranged on two sides of the direction-changing rail.

7. The system according to claim 6, wherein the feeding frame is further provided with a power assembly for driving the feeding frame to slide along the flat track, the power assembly comprises a motor and a winding drum connected to a driving shaft of the motor, the winding drum is coaxially connected with a chain wheel rotating synchronously with the winding drum, and the chain wheel is engaged with a guide chain connected with the feeding frame.

8. The system according to claim 7, wherein the flat rails are provided with a frame, the frame comprises support legs and a beam platform for mounting the flat rails, and the beam platform is provided with a fixed pulley assembly for guiding the guide chain.

9. The system according to claim 8, wherein the beam platform comprises an installation part and an inspection part distributed along the withdrawal direction of the addition device, the foundry ladle is correspondingly placed below the installation part, and the inspection part is provided with an inspection platform for maintaining the addition frame and the insulation cover.

10. The system of claim 9, wherein the cover comprises a body, the body is provided with a plurality of shaft seats for mounting connecting shafts, and a thermal insulation layer is arranged between the shaft seats and the body.

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