Molten iron transfer device

Abstract

The present invention relates to a molten iron transfer and conveying device, comprising a transfer trolley, a molten iron ladle, and a lifting mechanism. The lifting mechanism comprises a supporting cantilever, the supporting cantilever can perform lifting actions, a turning mechanism and a molten iron ladle are installed on the supporting cantilever, a driving shaft and a transmission shaft are respectively arranged on both sides of the molten iron ladle, the driving shaft is transmission-connected with the turning mechanism, and a first gear is arranged on the transmission shaft; an inoculant adding mechanism comprises a barrel, a bracket located at the lower side of the barrel, and an automatic material-dispensing mechanism, a discharge port is arranged at the bottom end of the barrel, and a material-dispensing slide plate is connected to the discharge port; the automatic material-dispensing mechanism comprises a rotating disc, a rotating shaft, and a gear assembly, a material-dispensing notch is arranged at the outer edge of the rotating disc, and material can be discharged when the material-dispensing notch corresponds to the discharge port, and the rotating shaft is transmitted to the first gear through the gear assembly, so that the rotating disc rotates when the molten iron ladle is turned forward to dump the molten iron, thereby realizing automatic addition of inoculant during the pouring process of the molten iron ladle by relying on the mechanical structure.

Description

Technical Field

[0001] The invention relates to the field of molten iron treatment for casting, and in particular to a molten iron transfer and transportation device. Background Art

[0002] Adding additives to cast iron is called inoculation. Inoculation refers to adding a small amount of other substances to the liquid metal during the solidification process to promote nucleation and inhibit growth, so as to achieve the purpose of grain refinement; it can promote graphitization, reduce the tendency of white cast iron, and improve the morphology and distribution of graphite. Inoculation generally includes three nodes. For example, the invention patent with application publication number CN106282472A discloses a molten iron inoculation process for cast iron, which includes the steps of (1) adding a certain amount of inoculant to a ductile iron ladle for spheroidization treatment; (2) tundish inoculation, adding a certain amount of inoculant to the tundish, and transferring the molten iron to the next step after the inoculant is completely melted; (3) adding the molten iron in step (2) to a casting ladle and adding a certain amount of inoculant.

[0003] There is a certain distance between the ductile iron ladle and the intermediate ladle. Generally, the molten iron in the corresponding stations of steps (1) and (2) is transferred by means of the molten iron ladle and a moving trolley. For example, the new patent with authorization announcement number CN219074354U discloses a molten iron transfer ladle turning car. After the transfer ladle turning car is filled with molten iron ladle at one station, it moves to the next designated station according to the control program; the rotary device drives the motor to rotate under program control, the ladle mouth of the molten iron ladle turns to the braking direction, and the lifting mechanism drives the lifting frame and the turning device to rise. After reaching the specified height, the longitudinal moving device moves forward to make the ladle mouth close to the ladle mouth of the empty molten iron ladle, and then the turning device drives the molten iron ladle to tip over and pour the molten iron into the empty ladle. After the molten iron is poured, the ladle body returns to the center position, the rotary device returns to the original position under the drive of the motor; the lifting frame is driven by the lifting mechanism to lower the molten iron ladle to the specified height; the moving trolley moves to the empty ladle discharge station, puts down the empty ladle, and performs the next work cycle. The molten iron transfer ladle car can be used to complete the transfer of molten iron between two processes, but at the workstation corresponding to step (2), it is currently necessary to manually add the inoculant in a quantitative manner, and the addition needs to be done while the molten iron in the ladle is being poured. This method requires manpower and increases labor costs, and the workers are uncomfortable and dangerous in a high-temperature environment. At the workstation corresponding to step (1), a wire feeding machine can be used to automatically add the inoculant (see the patent with authorization announcement number CN213013043U). In addition, during the displacement process of the molten iron transfer ladle car, the ladle loaded with molten iron is lifted up in advance and suspended by a support arm, which also has certain instability problems. Therefore, it is necessary to optimize the design of the existing molten iron transfer equipment. Summary of the invention

[0004] The purpose of the present invention is to provide a molten iron transfer and transportation device, which can realize the automatic addition of inoculant during the molten iron transfer process, and solve the problem that the inoculation link in the middle of the inoculation process requires manual participation.

[0005] To achieve the above object, the present invention adopts the following technical solution:

[0006] A molten iron transfer and conveying device comprises a transfer trolley and a molten iron ladle, the transfer trolley comprises a lateral moving mechanism, a longitudinal moving mechanism and a slewing mechanism, the lateral moving mechanism comprises a lateral moving platform and a lateral driving motor, the lateral driving motor is used to drive the lateral moving platform to move in a lateral direction, the longitudinal moving mechanism comprises a longitudinal moving platform and a longitudinal driving motor, the longitudinal driving motor is used to drive the longitudinal moving platform to move in a longitudinal direction, the slewing mechanism comprises a shell and a slewing bearing, the lower side of the shell is arranged on the lateral moving platform, the longitudinal moving platform is arranged on the upper side of the slewing bearing, the molten iron transfer and conveying device also comprises a lifting mechanism, the lifting mechanism comprises a supporting cantilever, the supporting cantilever is capable of lifting and lowering, a turning mechanism and the molten iron ladle are installed on the supporting cantilever, a driving shaft and a transmission shaft are respectively arranged on opposite sides of the molten iron ladle, the driving shaft is transmission-connected to the turning mechanism, and a first gear is arranged at one end of the transmission shaft;

[0007] The inoculant adding mechanism comprises a barrel, a bracket located at the lower side of the barrel and an automatic material feeding mechanism. The barrel is a cylindrical structure. A discharge port is arranged on the outer circumference of the barrel near the bottom end of the barrel. A discharge slide is connected to the discharge port. The discharge slide is inclined and is used to guide a quantitative inoculant to fall into the tundish. The automatic material feeding mechanism comprises a rotating disc, a rotating shaft and a gear assembly. The rotating disc is located at the bottom of the barrel and is driven to rotate by the rotating shaft. A discharge slot is arranged on the outer edge of the rotating disc. When the discharge slot corresponds to the discharge port, material can be discharged. The rotating shaft is driven by the first gear through the gear assembly to realize that the rotating disc rotates when the ladle is flipped forward to pour the molten iron.

[0008] Furthermore, the lifting mechanism includes a hydraulic cylinder, the cylinder body of the hydraulic cylinder is vertically fixed on the upper side of the longitudinal moving platform, the upper part of the piston rod of the hydraulic cylinder is connected to the supporting cantilever, the supporting cantilever is an I-shaped structure, the supporting cantilever includes a parallel first supporting arm and a second supporting arm, the first supporting arm and the second supporting arm are connected by an intermediate arm, the intermediate arm is connected to the upper part of the piston rod, and a positioning column is also provided on the upper side of the longitudinal moving platform, one end of the first supporting arm and the second supporting arm are provided with a positioning slide groove, the positioning slide groove and the positioning column are limited in the length direction of the first supporting arm, the other ends of the first supporting arm and the second supporting arm are respectively provided with a first bearing seat and a second bearing seat, for the assembly of the drive shaft and the transmission shaft respectively, and the end of the transmission shaft extending out of the second bearing seat is assembled with the first gear.

[0009] Furthermore, the gear assembly includes a gear shaft, a second gear, a third gear, and a fourth gear. The first gear and the second gear are both cylindrical spur gears, the third gear is meshed with the fourth gear, the third gear and the fourth gear are both bevel gears, the second gear and the third gear are both assembled on the gear shaft, the fourth gear is assembled on the rotating shaft, the second gear is used to mesh with the first gear for transmission, and the axis of the gear shaft and the rotating shaft are arranged vertically.

[0010] Furthermore, the bracket includes a protective shell and a support leg, the protective shell is located on the lower side of the barrel, the third gear and the fourth gear are located inside the protective shell, the gear shaft passes through the protective shell, and the second gear is located on the outside of the protective shell; the top end of the support leg is connected to the bottom end of the barrel, and the support leg is connected to the outer side wall of the protective shell, and the lower end of the support leg extends downward and extends out of the protective shell.

[0011] Furthermore, the rotating disk is provided with two groups of material discharge slots, each group includes two material discharge slots, the two groups of material discharge slots are arranged at an interval of 180 degrees in the circumferential direction of the rotating disk, and the material discharge slots in the same group are spaced at a certain angle in the circumferential direction of the rotating disk; an upwardly protruding diverter block is provided in the center of the rotating disk, the outer periphery of the diverter block is a spherical structure, and the bottom wall of the material discharge slot is an inclined surface with a high inside and a low outside.

[0012] Furthermore, a ring groove is provided on the outer peripheral wall of the bottom of the rotating disk for installing a sealing ring, and the sealing ring is in contact with and fits with the inner wall of the barrel.

[0013] Furthermore, during the process of the ladle being turned over and poured once, the rotating material plate is rotated 180 degrees and the inoculant is added through one group of the feeding slots.

[0014] Furthermore, a buffer support assembly is provided on the longitudinal moving platform, and the buffer support assembly includes a supporting ring body, a buffer spring and an automatic clamping part. The supporting ring body is floatingly installed on the longitudinal moving platform relying on the buffer spring. There are at least three automatic clamping parts, and each automatic clamping part is distributed along the circumference of the supporting ring body. The automatic clamping part has a hinged part and an abutting part. The hinged part is hinged on a section of the supporting ring body and can rotate within a certain angle range. When the ladle is about to drop into place, it can touch the abutting part and drive the hinged part to rotate clockwise until the abutting part abuts against the outer periphery of the ladle.

[0015] Furthermore, the hinged part of the automatic clamping part is a sleeve, one end of the sleeve is provided with a limit opening, the support ring body is provided with a hinge shaft, the sleeve is sleeved on the hinge shaft, a stop block is provided on the hinge shaft, the stop block is stuck in the limit opening, when the hinged part rotates clockwise or counterclockwise, the stop block respectively cooperates with one side of the limit opening to limit the rotation angle range of the hinged part; the automatic clamping part is an eccentric part, which can automatically rotate counterclockwise and maintain the rotated state when no external force is applied.

[0016] Furthermore, the outer peripheral wall of the support ring body is provided with a plurality of connecting ears, and the connecting ears are provided with through holes extending upward and downward. A bolt is provided at each connecting ear, and the threaded end of the bolt is threadedly assembled on the longitudinal moving platform. The non-threaded section of the bolt passes through the connecting ear, so that the bolt can limit the maximum upward floating stroke of the support ring body.

[0017] Beneficial effects of the present invention:

[0018] The molten iron transfer and conveying device of the present invention can simultaneously perform quantitative addition of inoculant when completing the transfer of molten iron between two workstations. It is not necessary to manually add the inoculant, thereby reducing labor costs. When the molten iron ladle is turned over, the gear assembly drives the rotating material plate to rotate a certain angle, and the addition of the inoculant is achieved by relying on the mechanical structure, without the need for electrical components such as electronic sensors, so as to better adapt to the high temperature environment near the molten iron inoculation.

[0019] The molten iron transfer and conveying device of the present invention is characterized in that the molten iron ladle is stably supported by the buffer support assembly when receiving molten iron at the first station and when being conveyed to the second station. Therefore, the molten iron ladle has better stability during the conveying process and is not always in a suspended state, which can also increase the service life of the lifting mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view of a transfer trolley in the molten iron transfer and conveying device of the present invention;

[0021] Figure 2 It is a top view of the transfer trolley in the present invention;

[0022] Figure 3 It is a partial view of the cooperation between one end of the supporting cantilever and the positioning column;

[0023] Figure 4 It is a schematic diagram of the ladle of the transfer trolley in the present invention being in a flipping state;

[0024] Figure 5 It is a schematic diagram of the transfer trolley in different positions between two workstations in the present invention;

[0025] Figure 6 It is a three-dimensional diagram of the inoculant adding mechanism;

[0026] Figure 7 It is a three-dimensional diagram of the inoculant adding mechanism from another angle;

[0027] Figure 8 yes Figure 7 A three-dimensional view of the transfer tray;

[0028] Fig. 9 It is a schematic diagram of the distribution of gear components;

[0029] Fig.10 It is a partial view of the barrel discharge port;

[0030] Fig.11 is a three-dimensional diagram of the buffer support assembly (the first spring cylinder and the second spring cylinder are in the exploded state);

[0031] Fig.12 yes Fig.11 A partial view of

[0032] Fig.13 Schematic diagram of the relative position of the buffer support assembly and the iron ladle (the iron ladle has not yet contacted the buffer support assembly);

[0033] Fig.14 This is a schematic diagram of the relative position of the buffer support assembly and the ladle. Figure 1 (The ladle begins to contact the buffer support assembly);

[0034] Fig.15 This is a schematic diagram of the relative position of the buffer support assembly and the ladle. Figure 2 (The ladle is in contact with the buffer support assembly).

[0035] The names corresponding to the marks in the figure are:

[0036] 1. Horizontal moving mechanism; 11. Horizontal track;

[0037] 2. Rotating mechanism;

[0038] 3. Longitudinal movement mechanism;

[0039] 41. hydraulic cylinder; 42. supporting cantilever; 421. first supporting arm; 422. second supporting arm; 4211. positioning slide; 43. positioning column; 44. second bearing seat;

[0040] 5. molten iron ladle; 51. driving shaft; 52. transmission shaft; 53. first gear; 54. contact part;

[0041] 6. Inoculant adding mechanism; 61. Barrel; 611. Discharge port; 62. Discharge slide; 63. Protective shell; 64. Leg; 65. Rotating plate; 651. Discharge slot; 652. Diverter block; 653. Ring groove; 661. Second gear; 662. Gear shaft; 663. Third gear; 664. Fourth gear; 665. Rotating shaft; 67. Adjustment plate; 68. Slot;

[0042] 7. Buffer support assembly; 71. Support ring; 711. Stop block; 72. Automatic clamping member; 721. Counterweight; 722. Articulated portion; 7221. Limiting opening; 723. Abutment portion; 724. Lower end; 73. First spring cylinder; 74. Connecting ear; 75. Bolt; 76. Buffer spring; 77. Second spring cylinder;

[0043] 8. Turning mechanism; A. First station; B. Second station; C. Transfer trolley. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0045] Example:

[0046] like Figure 5 As shown, a molten iron transfer and conveying device includes a transfer trolley C, a molten iron ladle 5 and an inoculant adding mechanism 6. In this embodiment, the moving principle of the transfer trolley C is the prior art, and the main improvement is that the inoculant can be automatically added when the molten iron ladle 5 is conveyed, and a stable support structure for the molten iron ladle 5 is designed.

[0047] like Figures 1 to 5 As shown, the transfer trolley C includes a transverse moving mechanism 1, a longitudinal moving mechanism 3 and a rotary mechanism 2. The transverse, longitudinal and rotary movements of the transfer trolley C are realized by using the existing technology (refer to the patent content of the authorization announcement number CN219074354U cited in the background technology). Only the corresponding schematic diagram is given in this example. The transverse moving mechanism 1 includes a transverse moving platform and a transverse driving motor. The transverse driving motor is used to drive the transverse moving platform to move in the transverse direction. The wheels of the transverse moving platform are on the transverse track 11 and can move in the transverse direction. The transverse track 11 is arranged in the foundry, between the first station A and the second station B.

[0048] The longitudinal moving mechanism 3 includes a longitudinal moving platform and a longitudinal driving motor. The longitudinal driving motor is used to drive the longitudinal moving platform to move longitudinally.

[0049] The slewing mechanism 2 includes a housing and a slewing bearing. The lower side of the housing is arranged on a transverse moving platform, and the housing moves transversely with the transverse moving platform. The longitudinal moving platform is arranged on the upper side of the slewing bearing. The slewing bearing can be driven by a slewing motor and a worm. The slewing motor adopts a servo motor to realize the rotation of the slewing bearing according to the set angle, thereby driving the longitudinal moving platform to rotate. The longitudinal moving platform includes a longitudinal slide rail and a longitudinal slide. The longitudinal slide rail is arranged on the upper side of the slewing bearing. The longitudinal slide is driven by a longitudinal drive motor and can be displaced longitudinally. In this embodiment, the longitudinal moving platform is used because the ladle 5 needs to have a 90-degree turn between the two stations. In addition, when the ladle 5 follows the transfer trolley C to the corresponding station, the main body of the transfer trolley C does not move, but the ladle 5 still needs to be appropriately displaced relative to the main body of the transfer trolley C with the help of the longitudinal moving platform (this part will be described again in the working principle section below).

[0050] like Figure 1 , 3 As shown in FIG. 4 , the molten iron transfer and conveying device further includes a lifting mechanism, which includes a supporting cantilever 42, which can perform lifting and lowering movements, and a flipping mechanism 8 and a molten iron ladle 5 are mounted on the supporting cantilever 42, and a driving shaft 51 and a transmission shaft 52 are respectively provided on opposite sides of the molten iron ladle 5, and the driving shaft 51 is connected to the flipping mechanism 8 in a transmission manner. The flipping mechanism 8 includes a flipping motor and a worm gear mechanism, and the worm gear mechanism is used for transmission; in other embodiments, a flipping motor can also be used to directly drive the driving shaft 51, and the flipping motor is a servo motor, which can control the molten iron ladle 5 to rotate according to a set angle, so as to realize the flipping, pouring and resetting of the molten iron ladle 5.

[0051] like Figure 2 As shown, the driving shaft 51 and the transmission shaft 52 are coaxially arranged, and the transmission shaft 52 is provided with a first gear 53 .

[0052] like Figure 1 , 3 As shown in FIG. 4 , the lifting mechanism includes a hydraulic cylinder 41, the cylinder body of the hydraulic cylinder 41 is vertically fixed on the upper side of the longitudinal moving platform, the upper part of the piston rod of the hydraulic cylinder 41 is connected to the supporting cantilever 42, and the supporting cantilever 42 is lifted and lowered by the hydraulic cylinder 41. In other embodiments, a screw nut mechanism can also be used as the lifting mechanism.

[0053] like Figures 1 to 3As shown, the support cantilever 42 is an I-shaped structure, and the support cantilever 42 includes a parallel first support arm 421 and a second support arm 422, and the first support arm 421 and the second support arm 422 are connected by an intermediate arm. The intermediate arm is connected to the upper part of the piston rod, and a positioning column 43 is also provided on the upper side of the longitudinal moving platform. One end of the first support arm 421 and the second support arm 422 is provided with a positioning slot 4211, and the positioning slot 4211 and the positioning column 43 are limitedly matched in the length direction of the first support arm 421. During the lifting and lowering process of the support cantilever 42, the positioning column 43 has a certain guiding effect to improve stability.

[0054] like Figure 2 As shown, the other ends of the first support arm 421 and the second support arm 422 are provided with a first bearing seat and a second bearing seat 44 for assembling the drive shaft 51 and the transmission shaft 52 respectively, and the end of the transmission shaft 52 extending out of the second bearing seat 44 is equipped with the first gear 53.

[0055] like Figures 6 to 10 As shown, the inoculant adding mechanism 6 includes a barrel 61, a bracket located at the lower side of the barrel 61, and an automatic material feeding mechanism. The barrel 61 is a cylindrical structure, and the upper end of the barrel 61 is a feeding port. The outer periphery of the barrel 61 is provided with a discharge port 611 near the bottom end of the barrel 61, and a discharge slide 62 is connected to the lower edge of the discharge port 611. The discharge slide 62 is inclined and is used to guide the inoculant to fall into the tundish (a device for holding molten iron during the casting process). The inoculant can automatically slide down by relying on the inclined surface of the discharge slide 62. The lower end of the discharge slide 62 is located above the tundish.

[0056] The automatic material feeding mechanism includes a rotating disc 65 , a rotating shaft 665 , and a gear assembly. The rotating disc 65 is located at the bottom of the barrel 61 and is driven to rotate by the rotating shaft 665 . The rotating shaft 665 passes downward out of the barrel 61 .

[0057] The outer edge of the rotating material tray 65 is provided with a material discharge slot 651 , and materials can be discharged when the material discharge slot 651 corresponds to the material discharge port 611 .

[0058] The gear assembly is in transmission with the first gear 53, and the gear assembly is responsible for transmitting power to the rotating shaft 665, so that when the molten iron ladle 5 is turned forward to pour the molten iron, the rotating material plate 65 rotates accordingly. When the rotating material plate 65 rotates to the point where the material discharge slot 651 corresponds to the material discharge port 611, the material can be discharged, and when the material discharge slot 651 is completely blocked by the wall of the barrel 61, the material cannot be discharged.

[0059] The feed notches 651 of the rotating material tray 65 are provided with two groups, each group includes two feed notches 651, and the two groups of feed notches 651 are arranged at intervals of 180 degrees in the circumferential direction of the rotating material tray 65. The feed notches 651 of the same group are spaced at a certain angle, such as 40 degrees, or about 40 degrees, in the circumferential direction of the rotating material tray 65; each time the inoculant is added, the rotating material tray 65 can be rotated 180 degrees, and the two feed notches 651 of the same group are used to alternately feed, so as to ensure the total addition amount while extending the feeding time, so as to more evenly mix the poured molten iron. That is, in the process of flipping and pouring the molten iron ladle 5 once, the rotating material tray 65 is rotated 180 degrees and the inoculant is added by relying on one group of feed notches 651. The next addition is made by using the two feed notches 651 of the other group.

[0060] The bottom of the rotating material tray 65 is provided with an annular groove 653 on the outer peripheral wall for installing a sealing ring, which contacts and cooperates with the inner wall of the barrel 61 to achieve a sealed fit. At the same time, the friction resistance of the sealing ring can also ensure that the rotating material tray 65 will not rotate randomly when not subjected to external force.

[0061] like Figure 8 As shown, a diverter block 652 protruding upward is provided at the center of the rotating material disc 65, and the outer periphery of the diverter block 652 is a spherical structure; the bottom wall of the material discharge slot 651 is an inclined surface with a high inner side and a low outer side, which is convenient for discharging.

[0062] like Fig. 9 As shown, the gear assembly includes a gear shaft 662, a second gear 661, a third gear 663, and a fourth gear 664. The first gear 53 and the second gear 661 are both cylindrical spur gears. The third gear 663 meshes with the fourth gear 664, and both are bevel gears. The second gear 661 and the third gear 663 are both assembled on the gear shaft 662, and the fourth gear 664 is assembled on the rotating shaft 665. The second gear 661 is used for meshing and transmitting with the first gear 53, and the axes of the gear shaft 662 and the rotating shaft 665 are arranged vertically.

[0063] like Figure 6 As shown, the bracket includes a protective shell 63 and a support leg 64. The protective shell 63 is located at the lower side of the barrel 61. The third gear 663 and the fourth gear 664 are located in the protective shell 63. The gear shaft 662 passes through the protective shell 63. The second gear 661 is located outside the protective shell 63.

[0064] The top of the leg 64 is connected to the bottom of the barrel 61, and the leg 64 is connected to the outer wall of the protective shell 63; the lower end 724 of the leg 64 extends downward and out of the protective shell 63, and is used to be fixed on the ground. The protective shell 63 is through from top to bottom. The leg 64 is made of angle steel.

[0065] like Fig.10As shown, the barrel 61 is provided with an adjustment plate 67 on the outside of the discharge port 611. The adjustment plate 67 is an arc-shaped plate that can fit the outer wall of the barrel 61. The adjustment plate 67 can move up and down to cover part of the discharge port 611, change the size of the discharge port 611, and then adjust the discharge amount each time. The outer wall of the barrel 61 is provided with a slot 68 for the adjustment plate 67 to be inserted. The damping of the two is coordinated and needs to be adjusted manually.

[0066] like Figures 11 to 15 As shown, a buffer support assembly 7 is provided on the longitudinal moving platform. The buffer support assembly 7 includes a support ring body 71, a buffer spring 76 and an automatic clamping member 72. The support ring body 71 is floatingly mounted on the longitudinal moving platform by means of the buffer spring 76.

[0067] There are three automatic clamping members 72, each of which is distributed along the circumference of the support ring body 71. The automatic clamping member 72 has a hinged portion 722 and an abutment portion 723. The hinged portion 722 is hinged on a section of the support ring body 71 and can rotate within a certain angle range. The support ring body 71 is hexagonal in shape.

[0068] The hinged part 722 of the automatic clamping member 72 is a sleeve, one end of which is provided with a limit opening 7221, and the support ring body 71 is provided with a hinge shaft, the sleeve is sleeved on the hinge shaft, and a stop block 711 is provided on the hinge shaft, and the stop block 711 is inserted into the limit opening 7221. When the hinged part 722 rotates clockwise, the stop block 711 is limitedly matched with one side of the limit opening 7221, and when the hinged part 722 rotates counterclockwise, the stop block 711 is limitedly matched with the other side of the limit opening 7221 to limit the rotation angle range of the hinged part 722, that is, to allow rotation within a certain angle range. The opening size of the limit opening 7221 is larger than the stop block 711, so that the two sides of the limit opening 7221 do not contact the stop block 711 at the same time, and the two sides of the limit opening 7221 refer to the two inner sides that can play a limiting role.

[0069] When the ladle 5 is about to drop into place, it can touch the abutment part 723, and drive the hinge part 722 to rotate clockwise until the abutment part 723 abuts against the outer periphery of the ladle 5. The abutment part 723 is formed by an inclined surface. A circle of protrusions is provided near the bottom of the ladle 5, and the lower side of the protrusions is an inclined surface, which is also the abutment part 54. When the ladle 5 is about to drop into place, it touches the lower end 724 of the abutment part 723, and it is the abutment part 54 of the ladle 5 that touches. Fig.14 When the hinged portion 722 rotates clockwise, the two inclined surfaces of the abutting portion 723 and the contact portion 54 are in contact with each other. Fig.15 shown.

[0070] like Fig.12As shown, the automatic clamping member 72 is an eccentric member, that is, the upper end of the automatic clamping member 72 is a counterweight portion 721, which deviates from the hinge axis of the automatic clamping member 72. When no external force is applied, it can automatically rotate counterclockwise and maintain the rotated state, so as to facilitate the falling of the molten iron ladle 5.

[0071] like Fig.11 As shown, the outer peripheral wall of the support ring body 71 is provided with a plurality of connecting ears 74, and the connecting ears 74 are provided with through holes that penetrate up and down. Each connecting ear 74 is provided with a bolt 75, and the bolt 75 adopts a reamed hole bolt; the threaded end of the bolt 75 is threadedly assembled on the longitudinal moving platform, and the non-threaded section of the bolt 75 passes through the connecting ear 74, so that the bolt 75 can limit the maximum upward floating stroke of the support ring body 71. The bolt 75 has both a limiting role and a guiding role. The total floating stroke of the support ring body 71 does not exceed 2 cm to avoid unstable shaking, and mainly plays the role of buffering and stable support.

[0072] like Fig.11 As shown, a first spring tube 73 is provided on the longitudinal movable platform for inserting a second spring tube 77 , the second spring tube 77 is fixed on the lower side of the support ring body 71 , and the outer diameter of the second spring tube 77 is smaller than that of the first spring tube 73 ; a buffer spring 76 is installed in the second spring tube 77 , and the buffer spring 76 is a compression spring.

[0073] The working principle of a molten iron transfer and transportation device of the present invention is as follows:

[0074] The transfer trolley C carries an empty ladle 5 and receives the molten iron after the first inoculation at the first station A. At this time, the longitudinal moving mechanism 3 places the ladle 5 in place, and the ladle 5 is not lifted. The bottom of the ladle 5 is stably supported by the buffer support assembly 7. After the molten iron is received, the rotary mechanism 2 is activated to rotate the longitudinal moving mechanism 3 90 degrees, and then the transverse moving mechanism 1 is activated to make the ladle 5 go to the second station B along the transverse track 11. After reaching the set position, the transverse moving mechanism 1 stops, and the lifting mechanism is activated to lift the ladle 5. After lifting it into place, the longitudinal moving mechanism 3 transports the ladle 5 forward in the transverse direction by a set distance so that the poured molten iron is above the intermediate ladle of the second station B. At this time, the first gear 53 is just engaged with the second gear 661 of the inoculant adding mechanism 6. The turning mechanism 8 is actuated, and the ladle 5 begins to pour molten iron into the tundish. As the ladle 5 rotates, the transmission shaft 52 on one side of the ladle 5 drives the first gear 53 to rotate. When the ladle 5 is poured, it finally drives the rotating plate 65 to rotate 180 degrees, completing the addition of the inoculant, and the inoculant is mixed into the molten iron.

[0075] After completion, the longitudinal moving mechanism 3 moves in the reverse direction, and the first gear 53 disengages from the second gear 661; the longitudinal moving mechanism 3 moves in the reverse direction to the position, and then the flipping mechanism 8 moves in the reverse direction, the empty molten iron ladle 5 is in a vertical state, the lifting mechanism starts to move the molten iron ladle 5 back, and is finally stably supported by the buffer support assembly 7, and then the lateral moving mechanism 1 moves in the reverse direction to the first station A. The transfer trolley C runs back and forth between the two stations in this way.

[0076] The molten iron transfer and conveying device of the present invention can simultaneously perform quantitative addition of inoculant when completing the transfer of molten iron between two workstations. It is not necessary to manually add the inoculant, thereby reducing labor costs. When the molten iron ladle 5 is turned over, the gear assembly drives the rotating material plate 65 to rotate a certain angle, which is achieved by relying on a mechanical structure, without the need for electrical components such as electronic sensors, and better adapts to the high temperature environment near the molten iron inoculation.

[0077] In the molten iron transfer and conveying device of the present invention, the molten iron ladle 5 is stably supported by the buffer support assembly 7 when receiving molten iron at the first station A and when being conveyed to the second station B. Therefore, the molten iron ladle 5 has better stability during the conveying process and is not always in a suspended state, which can also increase the service life of the lifting mechanism.

[0078] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that are the same or similar to those of the present application fall within the protection scope of the present invention.

Claims

1. A molten iron transfer and conveying device, comprising a transfer trolley and a molten iron ladle, wherein the transfer trolley comprises a lateral moving mechanism, a longitudinal moving mechanism and a slewing mechanism, wherein the lateral moving mechanism comprises a lateral moving platform and a lateral driving motor, wherein the lateral driving motor is used to drive the lateral moving platform to move in a lateral direction, wherein the longitudinal moving mechanism comprises a longitudinal moving platform and a longitudinal driving motor, wherein the longitudinal driving motor is used to drive the longitudinal moving platform to move in a longitudinal direction, wherein the slewing mechanism comprises a housing and a slewing bearing, wherein the lower side of the housing is arranged on the lateral moving platform, and the longitudinal moving platform is arranged on the upper side of the slewing bearing, wherein: The molten iron transfer and conveying device also includes a lifting mechanism, which includes a supporting cantilever, which can perform lifting actions, and a turning mechanism and the molten iron ladle are installed on the supporting cantilever, and a driving shaft and a transmission shaft are respectively provided on opposite sides of the molten iron ladle, and the driving shaft is transmission-connected to the turning mechanism, and a first gear is provided at one end of the transmission shaft; The inoculant adding mechanism comprises a barrel, a bracket located at the lower side of the barrel and an automatic material feeding mechanism. The barrel is a cylindrical structure. A discharge port is arranged on the outer circumference of the barrel near the bottom end of the barrel. A discharge slide is connected to the discharge port. The discharge slide is inclined and is used to guide a quantitative amount of inoculant to fall into the tundish. The automatic material feeding mechanism comprises a rotating disc, a rotating shaft and a gear assembly. The rotating disc is located at the bottom of the barrel and is driven to rotate by the rotating shaft. A discharge slot is arranged on the outer edge of the rotating disc. When the discharge slot is rotated to correspond to the discharge port, the material can be discharged. The rotating shaft is transmitted to the first gear through the gear assembly to realize the rotation of the rotating disc when the molten iron ladle is flipped forward to dump the molten iron.

2. The molten iron transfer and transportation device according to claim 1, characterized in that: The lifting mechanism includes a hydraulic cylinder, the cylinder body of the hydraulic cylinder is vertically fixed on the upper side of the longitudinal moving platform, the upper part of the piston rod of the hydraulic cylinder is connected to the supporting cantilever, the supporting cantilever is an I-shaped structure, the supporting cantilever includes a parallel first supporting arm and a second supporting arm, the first supporting arm and the second supporting arm are connected by an intermediate arm, the intermediate arm is connected to the upper part of the piston rod, a positioning column is also provided on the upper side of the longitudinal moving platform, one end of the first supporting arm and the second supporting arm are provided with a positioning slide groove, the positioning slide groove and the positioning column are limited in the length direction of the first supporting arm, the other ends of the first supporting arm and the second supporting arm are respectively provided with a first bearing seat and a second bearing seat, for the assembly of the driving shaft and the transmission shaft respectively, and the end of the transmission shaft extending out of the second bearing seat is equipped with the first gear.

3. The molten iron transfer and transportation device according to claim 1 or 2, characterized in that: The gear assembly includes a gear shaft, a second gear, a third gear, and a fourth gear. The first gear and the second gear are both cylindrical spur gears. The third gear is meshed with the fourth gear. The third gear and the fourth gear are both bevel gears. The second gear and the third gear are both assembled on the gear shaft. The fourth gear is assembled on the rotating shaft. The second gear is used to mesh with the first gear for transmission. The gear shaft and the axis of the rotating shaft are arranged vertically.

4. The molten iron transfer and transportation device according to claim 3 is characterized in that: The bracket includes a protective shell and a support leg. The protective shell is located on the lower side of the barrel. The third gear and the fourth gear are located inside the protective shell. The gear shaft passes through the protective shell. The second gear is located on the outside of the protective shell. The top of the support leg is connected to the bottom end of the barrel, and the support leg is connected to the outer side wall of the protective shell. The lower end of the support leg extends downward and extends out of the protective shell.

5. The molten iron transfer and transportation device according to claim 1, characterized in that: The rotating material tray is provided with two groups of material discharge slots, each group includes two material discharge slots, the two groups of material discharge slots are arranged at an interval of 180 degrees in the circumferential direction of the rotating material tray, and the material discharge slots in the same group are spaced at a certain angle in the circumferential direction of the rotating material tray; an upwardly protruding diverter block is provided in the center of the rotating material tray, the outer periphery of the diverter block is a spherical structure, and the bottom wall of the material discharge slot is an inclined surface with a high inner side and a low outer side.

6. The molten iron transfer and transportation device according to claim 5, characterized in that: The bottom of the rotating material tray is provided with an annular groove on the outer peripheral wall for installing a sealing ring, and the sealing ring is in contact with and fits with the inner wall of the barrel.

7. The molten iron transfer and transportation device according to claim 5, characterized in that: During the process of the ladle being turned over and poured once, the rotating material plate is rotated 180 degrees and the inoculant is added through one set of the material discharge slots.

8. The molten iron transfer and transportation device according to claim 1, characterized in that: A buffer support assembly is provided on the longitudinal moving platform, and the buffer support assembly includes a supporting ring body, a buffer spring and an automatic clamping member. The supporting ring body is floatingly mounted on the longitudinal moving platform by means of the buffer spring. At least three automatic clamping members are provided, and each automatic clamping member is distributed along the circumference of the supporting ring body. The automatic clamping member has a hinged portion and an abutting portion. The hinged portion is hinged on a section of the supporting ring body and can rotate within a certain angle range. When the ladle is about to drop into place, it can touch the abutting portion and drive the hinged portion to rotate clockwise until the abutting portion abuts against the outer periphery of the ladle.

9. The molten iron transfer and transportation device according to claim 8, characterized in that: The hinged part of the automatic clamping part is a sleeve, one end of the sleeve is provided with a limit opening, the support ring body is provided with a hinge shaft, the sleeve is sleeved on the hinge shaft, a stop block is provided on the hinge shaft, the stop block is stuck in the limit opening, when the hinged part rotates clockwise or counterclockwise, the stop block is respectively cooperated with one side of the limit opening to limit the rotation angle range of the hinged part; the automatic clamping part is an eccentric part, which can automatically rotate counterclockwise and maintain the rotated state when no external force is applied.

10. The molten iron transfer and transportation device according to claim 8, characterized in that: The outer peripheral wall of the support ring body is provided with a plurality of connecting ears, and the connecting ears are provided with through holes that pass through the upper and lower parts. A bolt is provided at each connecting ear, and the threaded end of the bolt is threadedly assembled on the longitudinal moving platform. The non-threaded section of the bolt passes through the connecting ear, so that the bolt can limit the maximum upward floating stroke of the support ring body.

Images