Ladle cover opening and closing structure and transfer trolley

Abstract

According to the ladle cover opening and closing structure and the transfer trolley, the transfer trolley comprises a walking base, a vertical rack is arranged on the walking base, a lifting frame is installed on the vertical rack in a sliding mode, and a bracket and a ladle cover assembly are arranged on the lifting frame; the ladle cover assembly comprises a swing frame, a hinge part is arranged in the middle of the swing frame, the hinge part is hinged to the upper end of the lifting frame, a ladle cover is installed on the swing frame on one side of the hinge part, the end of the swing frame on the other side of the hinge part is a limiting end, and the ladle cover corresponds to the ladle; the opening and closing structure comprises a driving part fixedly installed on one side of the vertical rack and a guide face arranged on the vertical rack, and in the process that the lifting frame moves up and down relative to the vertical rack, the driving end acts on the swing frame or the limiting end acts on the guide face, so that the swing frame swings to be used for opening or closing the ladle cover. Therefore, automatic opening and closing of the ladle cover are achieved, independent power mechanical driving is not needed, the transmission structure is simple and reliable, the transfer trolley is exquisite in structure, and maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of molten iron transfer equipment, in particular to an opening and closing structure of a molten iron ladle cover and a transfer vehicle. Background Art

[0002] The molten iron ladle is a frequently used container in the foundry production line. It is used to receive molten iron in front of the electric furnace and then transferred by various transfer vehicles to different equipment for wire feeding, slag removal, pouring and other processes. In order to prevent the smoke and dust generated by the spheroidization reaction of the molten iron from partially spreading during the molten iron transfer process and causing indoor environmental pollution, nearby workers may be exposed to or inhale dust, causing physical discomfort and harm to the body. It is usually necessary to set a ladle cover on the transfer vehicle to cover the molten iron ladle during the transfer process.

[0003] In order to improve the automation efficiency of production, it is often necessary to realize automatic opening and closing of the bag cover. At present, an independently driven bag cover opening and closing structure is usually installed on the transfer vehicle, using a motor or a hydraulic system as the power. This bag cover opening and closing structure not only increases the overall volume and weight of the transfer vehicle, but also increases the maintenance cost of the transfer vehicle, bringing inconvenience to production. Utility Model Content

[0004] In view of the shortcomings of the above-mentioned existing production technology, the applicant provides a ladle cover opening and closing structure and a transfer vehicle, which can realize automatic opening and closing of the ladle cover without the need for a separate power mechanical drive. The transmission structure is simple and reliable, making the transfer vehicle exquisite in structure and reducing maintenance costs.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A ladle cover opening and closing structure for a molten iron ladle, the opening and closing structure is used for a transfer vehicle for transferring the molten iron ladle, the transfer vehicle comprises a walking base, a vertical frame is arranged on the walking base, a lifting frame is slidably mounted on the vertical frame, a bracket cooperating with the molten iron ladle is arranged on the lifting frame, and a ladle cover assembly is mounted on the lifting frame;

[0007] The ladle cover assembly includes a swing frame, the middle part of the swing frame is a hinged part, the hinged part is hinged to the upper end of the lifting frame, a ladle cover is installed on the swing frame on one side of the hinged part, the end of the swing frame on the other side of the hinged part is a limit end, and the ladle cover corresponds to the ladle;

[0008] The opening and closing structure includes a driving member fixedly mounted on one side of the vertical frame, and a guide surface arranged on the vertical frame, the guide surface corresponds to the limit end, the upper end of the driving member is the driving end, and the driving end corresponds to the swing frame between the bag cover and the hinged part;

[0009] During the vertical movement of the lifting frame relative to the vertical frame, the driving end acts on the swing frame or the limiting end acts on the guide surface, so that the swing frame swings to open or close the bag cover.

[0010] As a further improvement of the above technical solution:

[0011] The driving member is columnar, the length direction of the driving member is along the vertical direction, the lower end of the driving member is fixedly connected to the bottom plate at the lower end of the vertical frame, and the bottom plate is installed on the walking base.

[0012] The lifting frame is provided with a guide sleeve which is slidably matched with the driving member.

[0013] The driving end is a rolling wheel rotatably mounted on the upper end of the driving member.

[0014] A driving surface is arranged on the swing frame between the package cover and the hinged part, and the driving surface is slidably matched with the driving end.

[0015] The limiting end is a rolling wheel rotatably mounted on the end of the swing frame, and the limiting end is slidably matched with the guide surface.

[0016] The guide surface comprises an introduction surface facing the hinge portion, the introduction surface is an inclined surface, and the upper end of the introduction surface is extended upward to be provided with a vertical surface.

[0017] A vertical driving mechanism is installed on the vertical frame, the lifting frame is drivingly connected to the vertical driving mechanism, and the vertical driving mechanism is used to drive the lifting frame to move up and down relative to the vertical frame.

[0018] A dust removal system is arranged on one side of the lifting frame, and the dust removal system is connected with the smoke and dust passage of the bag cover through a pipeline assembly.

[0019] A transfer vehicle is provided, which is used for transferring molten iron ladles, and comprises the above-mentioned molten iron ladle cover opening and closing structure.

[0020] The beneficial effects of the utility model are as follows:

[0021] The utility model has a compact and reasonable structure and is easy to operate. A swing frame is hingedly installed on the lifting frame, a bag cover is arranged at one swing end of the swing frame, a limit end is arranged at the other swing end, a driving member that acts on the swing frame on one side of the hinge is arranged on one side of the vertical frame, and a guide surface that acts on the limit end is arranged on the vertical frame, so that during the lifting process of the lifting frame, the bag cover can be closed and opened, and the lifting and lowering of the lifting frame is converted into the opening and closing power of the bag cover, thereby realizing automatic opening and closing of the bag cover, without the need for a separate power mechanical drive, and the transmission structure is simple and reliable, so that the structure of the transfer vehicle is exquisite and the maintenance cost is reduced.

[0022] The utility model also has the following advantages:

[0023] A dust removal system is arranged on the lifting frame to shorten the length of the pipeline assembly, and the swing frame is hingedly installed on the lifting frame, making the arrangement of the pipeline assembly very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the utility model (the package cover is located in the lower open position).

[0025] Figure 2 This is another state diagram of the package cover of the utility model (the package cover is in the closed position).

[0026] Figure 3 This is another state diagram of the package cover of the utility model (the package cover is located in the upper open position when the limiting end and the introduction surface act on it).

[0027] Figure 4 This is another state diagram of the package cover of the utility model (the package cover is located at the upper maximum opening angle position with the limiting end and the vertical surface acting thereon).

[0028] Figure 5 It is a three-dimensional diagram of the utility model.

[0029] Figure 6 It is a structural schematic diagram of the driving component of the utility model.

[0030] Figure 7 It is a structural schematic diagram of the lifting frame and the bag cover assembly of the utility model (the bag cover is opened).

[0031] Figure 8 It is a structural schematic diagram of the lifting frame, bag cover assembly and dust removal system of the utility model (bag cover closed state).

[0032] Fig. 9 It is a schematic diagram of the structure of the lifting frame, bag cover assembly and dust removal system of the utility model (bag cover closed state, another viewing angle).

[0033] Fig.10 This is a schematic diagram of the vertical frame and related structures of the utility model.

[0034] Fig.11 It is a structural schematic diagram of the walking base of the utility model.

[0035] in:

[0036] 1. Walking base;

[0037] 11. Docking platform; 1101. Roller table; 1102. Second motor; 1103. Roller;

[0038] 12. Base frame; 13. Connecting shaft; 14. First motor; 15. Travel wheel

[0039] 2. Ladle;

[0040] 3. Axle ear;

[0041] 4. Vertical rack;

[0042] 41. vertical drive mechanism; 4101. third motor; 4102. lead screw; 4103. lifting block; 42. guide groove; 43. guide surface; 4301. introduction surface; 4302. vertical surface;

[0043] 5. Lifting frame;

[0044] 51. bracket; 510. bracket; 52. connection block; 53. roller; 54. dust removal system; 541. first pipeline; 542. second pipeline; 543. rotary joint; 55. guide sleeve;

[0045] 6. Rotary drive;

[0046] 61. Mounting plate; 62. Rotary drive; 63. Block;

[0047] 7. Cover assembly;

[0048] 70, hinged portion; 71, swing frame; 72, package cover; 73, limit end; 74, driving surface;

[0049] 8. Driving member; 801. Driving end. DETAILED DESCRIPTION

[0050] The specific implementation of the present utility model is described below in conjunction with the accompanying drawings.

[0051] like Figure 1-Figure 5 As shown, the opening and closing structure of the iron ladle cover of this embodiment is used for a transfer vehicle for transferring the iron ladle 2, and the transfer vehicle includes a walking base 1, a vertical frame 4 is arranged on the walking base 1, a lifting frame 5 is slidably mounted on the vertical frame 4, a bracket 51 cooperating with the iron ladle 2 is arranged on the lifting frame 5, and a cover assembly 7 is installed on the lifting frame 5;

[0052] The ladle cover assembly 7 includes a swing frame 71, the middle part of the swing frame 71 is a hinged portion 70, the hinged portion 70 is hinged to the upper end of the lifting frame 5, a ladle cover 72 is installed on the swing frame 71 on one side of the hinged portion 70, and the end of the swing frame 71 on the other side of the hinged portion 70 is a limit end 73, and the ladle cover 72 corresponds to the ladle 2;

[0053] Specifically, the bag cover 72 is fixedly mounted on the swing frame 71, and as the swing frame 71 swings around the hinge 70, the angle between the bottom surface of the bag cover 72 and the horizontal plane changes;

[0054] The opening and closing structure includes a driving member 8 fixedly mounted on one side of the vertical frame 4, and a guide surface 43 provided on the vertical frame 4, the guide surface 43 corresponds to the limit end 73, the upper end of the driving member 8 is a driving end 801, and the driving end 801 corresponds to the swing frame 71 between the cover 72 and the hinge 70;

[0055] During the vertical movement of the lifting frame 5 relative to the vertical frame 4 , the driving end 801 acts on the swing frame 71 or the limiting end 73 acts on the guide surface 43 , so that the swing frame 71 swings to open or close the bag cover 72 .

[0056] Specifically, Fig.11 As shown, the structure of the walking base 1 is: it includes a base frame 12, on which a plurality of walking wheels 15 are rotatably mounted, and also includes a connecting shaft 13, which is transmission-connected to the two walking wheels 15, and a first motor 14 transmission-connected to the connecting shaft 13 is also installed on the base frame 12, and the walking wheels 15 cooperate with the ground rails.

[0057] like Figure 5 , Fig.11 As shown, the walking base 1 is also provided with a docking platform 11 for placing the molten iron ladle 2, and the structure of the docking platform 11 is: it includes a roller seat 1101 installed on the walking base 1, and a plurality of rollers 1103 are installed on the roller seat 1101 for rotation side by side. A second motor 1102 is also installed on the roller seat 1101, and the second motor 1102 is transmission-connected to the roller 1103, and the rolling direction of the roller 1103 is consistent with the moving direction of the walking base 1.

[0058] In addition, the lifting frame 5 moves up and down relative to the vertical frame 4 in the following manner: Figure 8 , Fig.10 As shown, a vertical driving mechanism 41 is installed on the vertical frame 4, and the lifting frame 5 is transmission-connected to the vertical driving mechanism 41, and the vertical driving mechanism 41 is used to drive the lifting frame 5 to move up and down relative to the vertical frame 4.

[0059] Specifically, the structure of the vertical drive mechanism 41 is: it includes a third motor 4101 installed on the vertical frame 4, and also includes a screw 4102 with both ends rotatably installed on the vertical frame 4, the screw 4102 is arranged along the vertical direction, the output end of the third motor 4101 is transmission-connected to the screw 4102, a lifting block 4103 is installed on the screw 4102, the center hole of the lifting block 4103 cooperates with the screw 4102, and one side of the lifting block 4103 is fixedly connected to the lifting frame 5.

[0060] One side of the lifting block 4103 is fixedly connected to the connecting block 52 in the middle of the back side of the lifting frame 5. Rollers 53 are arranged on both sides of the lifting frame 5. The rollers 53 are slidably connected to the guide grooves 42 arranged on both sides of the vertical frame 4. The openings of the guide grooves 42 face the two sides of the lifting frame 5. The vertical position of the lifting frame 5 can be controlled by a distance sensor.

[0061] Regarding the specific structure and function of the lifting frame 5 , specifically, the brackets 51 are respectively located on both sides of the lifting frame 5 , and the brackets 51 are provided with bracket grooves 510 that are rotatably matched with the axial ears 3 of the molten iron ladle 2 .

[0062] According to specific working conditions, a rotary driver 6 may be provided on the single bracket 51 , and the rotary driver 6 is used to drive the molten iron ladle 2 to rotate.

[0063] The structure of the rotary driver 6 includes a mounting plate 61 fixedly mounted on the bracket 51 , a rotary driver 62 is mounted on the mounting plate 61 , a clamping block 63 is mounted on the rotating end of the rotary driver 62 , and the clamping block 63 is used to clamp with the shaft ear 3 .

[0064] The transfer vehicle is used to receive the molten iron ladle 2 and transfer the molten iron ladle 2. When receiving the molten iron ladle 2, the molten iron ladle 2 can be docked with the docking device through the docking platform 11, so that the molten iron ladle 2 is transported to the docking platform 11. At this time, the driving end 801 of the driving member 8 acts with the swing frame 71 to open the ladle cover 72. Figure 1 By lifting the frame 5, the bracket 51 is auxiliary supported on both sides of the ladle 2, and the driving end 801 is released from the swing frame 71, and the cover 72 covers the ladle 2, and the ladle 2 can be transported, such as Figure 2 When the ladle 2 is located in front of the operating station, the lifting frame 5 continues to rise and the rear bracket 51 lifts the ladle 2. At this time, the limiting end 73 acts on the guide surface 43 during the process, and the cover 72 is opened again, such as Figure 2 , Figure 3 shown.

[0065] By hingedly installing a swing frame 71 on the lifting frame 5, a bag cover 72 is set at one swing end of the swing frame 71, and a limit end 73 is set at the other swing end, a driving member 8 is set on one side of the vertical frame 4 to act on the swing frame 71 on one side of the hinge 70, and a guide surface 43 is set on the vertical frame 4 to act on the limit end 73, so that during the lifting process of the lifting frame 5, the bag cover 72 can be closed and opened, and the lifting and lowering of the lifting frame 5 is converted into the opening and closing power of the bag cover 72, so that the bag cover 72 can be automatically opened and closed without the need for a separate power mechanical drive, and the transmission structure is simple and reliable, so that the structure of the transfer vehicle is exquisite and the maintenance cost is reduced.

[0066] Further, if Figure 1-Figure 6As shown, the driving member 8 is columnar, the length direction of the driving member 8 is along the vertical direction, the upper end of the driving member 8 is the driving end 801, and the lower end of the driving member 8 is fixedly connected to the bottom plate at the lower end of the vertical frame 4, and the bottom plate is installed on the walking base 1. Specifically, the connection structure of the bottom plate at the lower end of the vertical frame 4 and the walking base 1 is determined according to the specific function of the transfer vehicle.

[0067] A guide sleeve 55 that is slidably matched with the driving member 8 is installed on the lifting frame 5. The guide sleeve 55 is used to guide the relative movement direction of the lifting frame 5 and the driving member 8 when the driving end 801 acts on the driving surface 74, and provides auxiliary force at the same time.

[0068] The driving end 801 is a rolling wheel rotatably mounted on the upper end of the driving member 8 .

[0069] A driving surface 74 is provided on the swing frame 71 between the package cover 72 and the hinged portion 70 , and the driving surface 74 is slidably matched with the driving end 801 .

[0070] Further, if Figure 1-Figure 7 As shown, the limiting end 73 is a rolling wheel rotatably mounted on the end of the swing frame 71 , and the limiting end 73 is slidably matched with the guide surface 43 .

[0071] The guide surface 43 includes an introduction surface 4301 facing the hinge portion 70 . The introduction surface 4301 is an inclined surface. A vertical surface 4302 is provided at the upper end of the introduction surface 4301 extending upward.

[0072] Specifically, a rib plate is disposed outside the guide surface 43 to reinforce the guide surface, and a curved surface transition is used at the connection between the vertical surface 4302 and the introduction surface 4301 .

[0073] Further, if Figure 8-Figure 9 As shown, a dust removal system 54 is provided on one side of the lifting frame 5, and the dust removal system 54 is connected to the smoke and dust channel of the bag cover 72 through a pipeline assembly.

[0074] A dust removal system 54 is arranged on the lifting frame 5 to shorten the length of the pipeline assembly. In addition, the swing frame 71 is hingedly mounted on the lifting frame 5, so that the arrangement of the pipeline assembly is very convenient. The pipeline assembly can be a hose or a hard pipe. The hard pipe connection can extend the service life of the pipeline. The specific structure is as follows:

[0075] The pipeline assembly includes a first pipeline 541 and a second pipeline 542 . The first pipeline 541 and the second pipeline 542 are hard pipes. The first pipeline 541 and the second pipeline 542 are connected by a rotating joint 543 . The central axis of the rotating joint 543 is coaxial with the rotation axis of the hinge part 70 .

[0076] The opening and closing process of the opening and closing structure of the molten iron ladle cover of this embodiment is as follows:

[0077] In the initial state, the driving end 801 of the driving member 8 contacts the driving surface 74 and supports the swing frame 71 through the driving surface 74. At this time, the package cover 72 is located above the hinged portion 70, and the package cover 72 is in an open state. Figure 1 As shown, at this time, the lifting frame 5 is located at the lowest position;

[0078] When the iron ladle 2 is located on the docking platform 11, the lifting frame 5 moves upward. During the movement, the contact position between the driving end 801 and the driving surface 74 changes. At the same time, after the swing frame 71 rotates around the hinge 70, the ladle cover 72 descends to cover the iron ladle 2, and the limit end 73 rotates upward and contacts the guide surface 43. At this time, the shaft ear 3 of the iron ladle 2 is located in the bracket 510 of the bracket 51, and the bottom of the iron ladle 2 is located on the docking platform 11. Figure 2 As shown, at this time, the cover 72 is covered on the molten iron ladle 2, the transfer vehicle can transfer the molten iron ladle 2, and the dust removal system 54 works to collect the smoke and dust in the molten iron ladle 2;

[0079] When the transfer vehicle is located in front of the operating station (slag removal station or in front of the pouring machine or wire feeding machine), the lifting frame 5 continues to move upward, the limit end 73 first slides on the introduction surface 4301, the bag cover 72 swings upward to open and is located above the hinged portion 70, and the bag cover 72 rotates upward to open a certain angle, such as Figure 3 As shown;

[0080] As the lifting frame 5 moves upward, the limiting end 73 slides along the introduction surface 4301 toward the vertical surface 4302. Under the sliding contact of the vertical surface 4302, the cover 72 continues to rotate upward to open a larger angle. Figure 4 As shown, at this time, wire feeding or rotating the molten iron ladle 2 can be performed to perform slag removal operations or dump molten iron. According to specific circumstances, the transfer vehicle is provided with the function of lifting the molten iron ladle 2 and rotating the molten iron ladle 2 at the same time.

[0081] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the protection scope of the utility model.

Claims

1. A molten iron ladle cover opening and closing structure, characterized in that: The opening and closing structure is used for a transfer vehicle for transferring the molten iron ladle (2), the transfer vehicle comprising a walking base (1), a vertical frame (4) being arranged on the walking base (1), a lifting frame (5) being slidably mounted on the vertical frame (4), a bracket (51) cooperating with the molten iron ladle (2) being arranged on the lifting frame (5), and a ladle cover assembly (7) being mounted on the lifting frame (5); The ladle cover assembly (7) comprises a swing frame (71), the middle part of the swing frame (71) is a hinged part (70), the hinged part (70) is hinged to the upper end of the lifting frame (5), a ladle cover (72) is installed on the swing frame (71) on one side of the hinged part (70), the end of the swing frame (71) on the other side of the hinged part (70) is a limit end (73), and the ladle cover (72) corresponds to the molten iron ladle (2); The opening and closing structure comprises a driving member (8) fixedly mounted on one side of the vertical frame (4), and a guide surface (43) arranged on the vertical frame (4), wherein the guide surface (43) corresponds to the limit end (73), the upper end of the driving member (8) is a driving end (801), and the driving end (801) corresponds to a swing frame (71) between the bag cover (72) and the hinged portion (70); When the lifting frame (5) moves up and down relative to the vertical frame (4), the driving end (801) acts on the swing frame (71) or the limiting end (73) acts on the guide surface (43), so that the swing frame (71) swings to open or close the bag cover (72).

2. The opening and closing structure of a molten iron ladle cover according to claim 1, characterized in that: The driving member (8) is columnar, the length direction of the driving member (8) is along the vertical direction, the lower end of the driving member (8) is fixedly connected to the bottom plate at the lower end of the vertical frame (4), and the bottom plate is installed on the walking base (1).

3. The opening and closing structure of a molten iron ladle cover according to claim 2, characterized in that: The lifting frame (5) is provided with a guide sleeve (55) which is slidably matched with the driving member (8).

4. The opening and closing structure of a molten iron ladle cover according to claim 1, characterized in that: The driving end (801) is a rolling wheel rotatably mounted on the upper end of the driving member (8).

5. The opening and closing structure of a molten iron ladle cover according to claim 1, characterized in that: A driving surface (74) is provided on the swing frame (71) between the package cover (72) and the hinged portion (70), and the driving surface (74) is slidably matched with the driving end (801).

6. The opening and closing structure of a molten iron ladle cover according to claim 1, characterized in that: The limiting end (73) is a rolling wheel rotatably mounted on the end of the swing frame (71), and the limiting end (73) is slidably matched with the guide surface (43).

7. The opening and closing structure of a molten iron ladle cover according to claim 1, characterized in that: The guide surface (43) comprises an introduction surface (4301) facing the hinge portion (70), the introduction surface (4301) is an inclined surface, and a vertical surface (4302) is provided at the upper end of the introduction surface (4301) extending upward.

8. The opening and closing structure of a molten iron ladle cover according to claim 1, characterized in that: A vertical drive mechanism (41) is installed on the vertical frame (4), the lifting frame (5) is drivingly connected to the vertical drive mechanism (41), and the vertical drive mechanism (41) is used to drive the lifting frame (5) to move up and down relative to the vertical frame (4).

9. The opening and closing structure of a molten iron ladle cover according to claim 1, characterized in that: A dust removal system (54) is provided on one side of the lifting frame (5), and the dust removal system (54) is connected to the smoke and dust channel of the bag cover (72) through a pipeline component.

10. A transfer vehicle, characterized in that: The transfer vehicle is used for transferring a molten iron ladle (2), and the transfer vehicle comprises the molten iron ladle cover opening and closing structure as described in any one of claims 1-9.

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