Hard connection ladle turning lifting appliance

Abstract

The invention discloses a hard connection ladle turning lifting appliance which comprises a fixed guide frame, a movable guide frame, a ladle turning lifting appliance and a connecting column, the upper part of the connecting column is welded below the crane trolley frame, and the lower part of the connecting column is connected with the fixed guide frame; the fixed guide frame comprises a rear fixed reinforcing frame and a front fixed reinforcing frame, a fixed guide rod is arranged between the rear fixed reinforcing frame and the front fixed reinforcing frame, and the fixed guide rod is clamped on the outer side of the movable guide frame; a fixed frame guide rail pair and a fixed frame guide rail sliding block are mounted on the inner side of the fixed guide rod, so that the fixed guide frame is in sliding connection with the movable guide frame; two groups of collision blocks are mounted on the inner side of the fixed guide frame and are respectively fixed frame upper collision blocks and fixed frame lower collision blocks, and collision block baffles are arranged on the outer sides of the fixed frame upper collision blocks and the fixed frame lower collision blocks; in the moving process of the crane, the steel ladle is not prone to shaking, the safety in the molten steel transferring and ladle turning process is greatly improved, and meanwhile the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of crane slings, in particular to a hard-connected bag-turning sling. Background Art

[0002] In modern steel enterprises, steelmaking processes are becoming more and more automated. After the molten steel is melted, a gantry hook hoist is usually used to transfer the ladle. This type of hoist uses two stacked single hooks suspended under the beam to directly hook the trunnion above the ladle, thereby lifting the ladle. Because the hoist and the crane are flexibly connected above the beam, the ladle is prone to shaking during the operation of the crane, causing accidents such as molten steel overflow.

[0003] During the ladle turning process, the traditional practice is to hang a tipping hook on the auxiliary hook of the crane, hook the ear shaft at the rear lower part of the ladle, and lift it through the auxiliary hook to turn the ladle over. This method requires manual hooking and poses a very high safety hazard. Summary of the invention

[0004] The technical problem to be solved by the present invention is: how to solve the problem that the ladle is easy to shake during the ladle transfer process by the crane, and provide a hard-connected ladle turning hoist.

[0005] To achieve the above object, the present invention is achieved through the following technical solutions: A hard-connected bag turning hoist comprises a fixed guide frame, a movable guide frame, a bag turning hoist and a connecting column; the upper part of the connecting column is welded under the crane trolley frame, and the lower part is connected to the fixed guide frame; The fixed guide frame comprises a rear fixed reinforcement frame and a front fixed reinforcement frame, a fixed guide rod is arranged between the rear fixed reinforcement frame and the front fixed reinforcement frame, the fixed guide rod is clamped on the outside of the movable guide frame, and the fixed guide rod, the front fixed reinforcement frame and the rear fixed reinforcement frame together form a whole; a fixed frame guide rail pair and a fixed frame guide rail slider are installed on the inner side of the fixed guide rod, so that the fixed guide frame is slidably connected with the movable guide frame; two groups of collision blocks are installed on the inner side of the fixed guide frame, namely, a fixed frame upper collision block and a fixed frame lower collision block, and collision block baffles are arranged on the outer sides of the fixed frame upper collision block and the fixed frame lower collision block; The mobile guide frame comprises a rear mobile reinforcement frame and a front mobile reinforcement frame, a mobile guide rod is arranged between the rear mobile reinforcement frame and the front mobile reinforcement frame, a guide rail and a mobile frame guide pair are arranged on the mobile guide rod, and the fixed frame guide slider and the fixed frame guide pair on the inner side of the fixed guide rod are matched with the guide rail on the outer side of the middle of the mobile guide frame and the mobile frame guide pair on the outer side to form a matched mobile pair; The first upper limit frame and the first lower limit frame are installed on the outer side of the mobile guide frame, and the second upper limit frame and the second lower limit frame are installed on the inner side. The four sets of limit frames are all equipped with collision block baffles in the force bearing direction; The bag turning hoist includes guide arms, which are two vertically parallel guide arms, and a main slider, an upper bag turning block and a lower bag turning block are installed on the outer side of each guide arm, and the main slider is slidably arranged on the movable frame guide rail pair of the movable guide frame; the lower parts of the two guide arms are connected to a hanger, and a guide arm connecting beam is connected between the upper parts of the two guide arms, and the lower part of the hanger is connected to a plate hook through a pin shaft, and a turning piece is connected to the plate hook, and a plate hook bushing is installed in the hook socket below the plate hook, and the outer side of the plate hook bushing is connected to the connecting rod group, and the upper part of the connecting rod group is hinged to the lower part of the bag turning beam, and a pulley group is installed above the bag turning beam, and the side of the bag turning beam close to the plate hook is hinged to the slide rod, and the upper part of the slide rod slides in a straight line in the slide seat, and the slide seat is connected to the hanger and the guide arm connecting beam, wherein the turning piece, the connecting rod group, the bag turning beam, the slide rod, the pulley group and the slide seat together constitute the bag turning mechanism.

[0006] Compared with the prior art, the present invention has the following beneficial effects: it comprises a fixed guide frame, a movable guide frame, a ladle turning hoist and a connecting column, etc.; the ladle is not easy to shake during the movement of the crane, and the hardware is anti-shake; therefore, the hoist does not require manual participation in the ladle turning process, which greatly improves the safety of the molten steel transfer and ladle turning process, and at the same time improves the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a schematic diagram of the overall structure of the hard-connected lifting device; Figure 2 is a schematic diagram of a fixed guide frame; Figure 3 is a schematic diagram of a mobile guide frame; Figure 4 It is a three-dimensional picture of the bag turning sling; Figure 5 It is a side view of the bag turning sling. DETAILED DESCRIPTION

[0008] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0009] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0010] like Figure 1 As shown, a hard-connected bag turning hoist comprises a fixed guide frame 2, a movable guide frame 3, a bag turning hoist 4 and a connecting column 1. The connecting column 1 is welded to the bottom of the crane trolley frame at the top and connected to the fixed guide frame 2 at the bottom.

[0011] like Figure 2 As shown, the fixed guide frame 2 includes a rear fixed reinforcement frame 2.1 and a front fixed reinforcement frame 2.4, and a fixed guide rod 2.8 is arranged between the rear fixed reinforcement frame 2.1 and the front fixed reinforcement frame 2.4. There are two fixed guide rods 2.8, which are arranged at the two ends of the rear fixed reinforcement frame 2.1 and the front fixed reinforcement frame 2.4, respectively. In this way, the fixed guide rod 2.8 is clamped on the outside of the mobile guide frame 3, and the fixed guide rod 2.8, the front fixed reinforcement frame 2.4, and the rear fixed reinforcement frame 2.1 together form a whole. A fixed frame guide rail pair 2.3 and a fixed frame guide rail slider 2.2 are installed on the inner side of the fixed guide rod 2.8, so that the fixed guide frame 2 is slidably connected with the mobile guide frame 3. In addition, two groups of collision blocks are installed on the inner side of the fixed guide frame 2, namely, a fixed frame upper collision block 2.6 and a fixed frame lower collision block 2.7, and a collision block baffle 2.5 is arranged on the outer side of the fixed frame upper collision block 2.6 and the fixed frame lower collision block 2.7.

[0012] like Figure 3 As shown, the movable guide frame 3 includes a rear movable reinforcement frame 3.1 and a front movable reinforcement frame 3.6, a movable guide rod 3.2 is arranged between the rear movable reinforcement frame 3.1 and the front movable reinforcement frame 3.6, a guide rail 3.3 and a movable frame guide pair 3.5 are arranged on the movable guide rod 3.2, and the fixed frame guide slider 2.2 and the fixed frame guide pair 2.3 on the inner side of the fixed guide rod 2.8 are paired with the guide rail 3.3 on the middle outer side of the movable guide frame 3 and the outer movable frame guide pair 3.5 to form a paired movable pair.

[0013] The first upper limit frame 3.8 and the first lower limit frame 3.9 are installed on the outer side of the movable guide frame 3, and the second upper limit frame 3.4 and the second lower limit frame 3.7 are installed on the inner side. The four groups of limit frames are all equipped with collision block baffles 2.5 in the force bearing direction.

[0014] like Figure 4 , Figure 5As shown, the bag turning hanger 4 includes a guide arm 4.4, a guide arm connecting beam 4.2, a hanger 4.7, a plate hook 4.8, a pulley block 4.1, a bag turning mechanism, etc. Among them, the guide arm 4.4 is two guide arms arranged vertically and parallel, and the outer side of each guide arm 4.4 is installed with a main slider 4.6, an upper bag turning block 4.3 and a lower bag turning block 4.5, and the main slider 4.6 is slidably arranged on the movable frame guide rail pair 3.5 of the movable guide frame 3. The lower part of the two guide arms 4.4 is connected to a hanger 4.7, and the upper part of the two guide arms 4.4 is connected with a guide arm connecting beam 4.2. The plate hook 4.8 is connected to the lower part of the hanger 4.7 through a pin shaft, and the plate hook 4.8 is connected to the flipping member 4.10, and the plate hook bushing 4.9 is installed in the hook socket below the plate hook 4.8, and the outer side of the plate hook bushing 4.9 is connected to the connecting rod group 4.11. The top of the connecting rod group 4.11 is hinged to the bottom of the overturning beam 4.12, a pulley group 4.14 is installed on the overturning beam 4.12, the side of the overturning beam 4.12 close to the plate hook 4.8 is hinged to the slide bar 4.13, the top of the slide bar 4.13 slides along a straight line in the slide seat 4.15, and the slide seat 4.15 is connected to the hanger 4.7 and the guide arm connecting beam 4.2. Among them, the flipping member 4.10, the connecting rod group 4.11, the overturning beam 4.12, the slide bar 4.13, the pulley group 4.14, and the slide seat 4.15 together constitute the overturning mechanism.

[0015] The working principle of the present invention is: The pulley block 4.1 is connected to the main lifting mechanism of the crane through a steel wire rope. When the bag turning hoist 4 is raised to the highest point, the bag turning hoist 4 is completely retracted in the mobile guide frame 3, and the mobile guide frame 3 is completely retracted in the fixed guide frame 2. At this time, the upper collision block 2.6 of the fixed frame inside the fixed guide frame collides with the first lower limit frame 3.9 outside the mobile guide frame 3, and the mobile guide frame 3 reaches the upper limit. The lower collision block 4.5 outside the bag turning hoist 4 supports the second upper limit frame 3.4 inside the mobile guide frame 3, so that the mobile guide frame 3 does not fall.

[0016] When the bag turning hoist 4 starts to fall from the highest point, the bag turning lower bumper 4.5 on the outside of the bag turning hoist 4 holds the second upper limit frame 3.4 on the inside of the mobile guide frame 3, and the mobile guide frame 4 starts to fall first. When the first upper limit frame 3.8 on the outside of the mobile guide frame 4 collides with the fixed frame lower bumper 2.7 on the inside of the fixed guide frame 2, the mobile guide frame reaches the lower limit and stops falling. The bag turning hoist 4 continues to fall, and when the bag turning upper bumper 4.3 on the outside of the bag turning hoist 4 collides with the second lower limit frame 3.7 on the inside of the mobile guide frame 3, the bag turning hoist 4 reaches the lowest point.

[0017] The pulley block 4.14 is connected to the auxiliary lifting mechanism of the crane through a steel wire rope, and the lower part is connected to the overturning beam 4.12. The lower part of the overturning beam 4.12 is connected to the overturning member 4.10 through the connecting rod group 4.11. As the pulley block 4.14 is lifted upward, the overturning member 4.10 is driven to rotate, and the modified ladle begins to overturn from a vertical state under the rotational force of the overturning member 4.10. After the molten steel is poured, the pulley block 4.14 begins to descend, and the overturning member 4.10 begins to rotate in the opposite direction. At this time, as the overturning force applied to the ladle gradually decreases, the ladle gradually returns to a vertical state from a tilting state under the action of its own center of gravity.

[0018] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several changes and improvements can be made without departing from the overall concept of the present invention, which should also be regarded as the scope of protection of the present invention.

Claims

1. A hard-connected bag-turning sling, characterized in that: It comprises a fixed guide frame (2), a movable guide frame (3), a bag turning sling (4) and a connecting column (1); the connecting column (1) is welded to the bottom of the crane trolley frame at the top and connected to the fixed guide frame (2) at the bottom; A movable guide frame (3) is slidably arranged on the fixed guide frame (2), and a bag turning hanger (4) is slidably arranged on the movable guide frame (3); The bag turning hanger (4) comprises a guide arm (4.4), which is two guide arms arranged vertically and in parallel. A main slider (4.6), an upper bag turning bumper (4.3) and a lower bag turning bumper (4.5) are installed on the outer side of each guide arm (4.4). The main slider (4.6) is slidably arranged on a movable guide frame (3). The lower parts of the two guide arms (4.4) are connected to a hanger (4.7). A guide arm connecting beam (4.2) is connected between the upper parts of the two guide arms (4.4). The lower part of the hanger (4.7) is connected to a plate hook (4.8) through a pin shaft. The plate hook (4.8) is connected to a turning piece (4.10). A plate hook bushing (4.9) is installed in a hook socket below the plate hook (4.8). The outer side of (4.9) is connected to the connecting rod group (4.11), the upper part of the connecting rod group (4.11) is hinged to the lower part of the flipping beam (4.12), a pulley group (4.14) is installed on the upper part of the flipping beam (4.12), the side of the flipping beam (4.12) close to the plate hook (4.8) is hinged to the sliding rod (4.13), the upper part of the sliding rod (4.13) slides in a straight line in the slide seat (4.15), the slide seat (4.15) is connected to the hanger (4.7) and the guide arm connecting beam (4.2), wherein the flipping member (4.10), the connecting rod group (4.11), the flipping beam (4.12), the sliding rod (4.13), the pulley group (4.14), and the slide seat (4.15) together constitute a flipping mechanism.

2. A hard-connected bag turning hanger according to claim 1, characterized in that: The fixed guide frame (2) comprises a rear fixed reinforcement frame (2.1) and a front fixed reinforcement frame (2.4); a fixed guide rod (2.8) is arranged between the rear fixed reinforcement frame (2.1) and the front fixed reinforcement frame (2.4); the fixed guide rod (2.8) is clamped on the outside of the movable guide frame (3); the fixed guide rod (2.8) and the front fixed reinforcement frame (2.4) and the rear fixed reinforcement frame (2.1) together form a whole; a fixed frame guide rail pair (2.3) and a fixed frame guide rail slider (2.2) are installed on the inner side of the fixed guide rod (2.8), so that the fixed guide frame (2) and the movable guide frame (3) are slidably connected; two groups of bumpers are installed on the inner side of the fixed guide frame (2), namely, a fixed frame upper bumper (2.6) and a fixed frame lower bumper (2.7).

3. A hard-connected bag turning hanger according to claim 2, characterized in that: In the fixed guide frame (2), a collision block baffle (2.5) is provided on the outer sides of the upper collision block (2.6) of the fixed frame and the lower collision block (2.7) of the fixed frame.

4. A hard-connected bag turning hanger according to claim 2, characterized in that: The movable guide frame (3) comprises a rear movable reinforcement frame (3.1) and a front movable reinforcement frame (3.6); a movable guide rod (3.2) is arranged between the rear movable reinforcement frame (3.1) and the front movable reinforcement frame (3.6); a guide steel rail (3.3) and a movable frame guide rail pair (3.5) are arranged on the movable guide rod (3.2); the fixed frame guide rail slider (2.2) and the fixed frame guide rail pair (2.3) on the inner side of the fixed guide rod (2.8) are paired with the guide steel rail (3.3) and the movable frame guide rail pair (3.5) on the outer side of the middle side of the movable guide frame (3) to form a paired movable pair; A first upper limit frame (3.8) and a first lower limit frame (3.9) are installed on the outside of the movable guide frame (3), and a second upper limit frame (3.4) and a second lower limit frame (3.7) are installed on the inside. The four sets of limit frames are all equipped with collision block baffles (2.5) in the force-bearing direction.

Images