Anti-falling metallurgical crane gantry hook structure

Abstract

The utility model discloses an anti-falling metallurgical hoisting gantry hook structure, which belongs to the technical field of metallurgical hoisting gantry hooks and comprises hoisting arms respectively arranged on the left side and the right side of a cross beam and hoisting hooks connected with the hoisting arms, and guide plates and protection devices matched with the two hoisting arms are correspondingly arranged on the front side and the rear side of the cross beam. The two connecting plates of the suspension arm are movably arranged on the corresponding guide plates; the protection device comprises a limiting groove horizontally formed in one side of the guide plate, a limiting ball slidably arranged in the limiting groove and a chain with one end arranged on the connecting plate of the suspension arm and the other end connected with the limiting ball. A sliding anti-falling device is arranged between the groove of the suspension arm and the bottom plate of the cross beam in a matched mode. According to the gantry hook, the unhooking risk in the hoisting process can be remarkably reduced while the universality of the gantry hook is enhanced, the safety of operators is guaranteed, the damage to steelmaking equipment is reduced, the production safety can be effectively improved, and the service life of the equipment can be effectively prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of metallurgical hanging gantry hooks, and in particular relates to a falling-proof metallurgical hanging gantry hook structure. Background Art

[0002] In industries such as steelmaking and metallurgy, the lifting of liquid metal is a key project. At present, the widely used overhead crane lifting system usually adopts the traditional gantry hook structure, such as Figure 1 As shown, the hook 3 is respectively arranged on the left and right sides of the crossbeam 1 of the gantry through the boom 2, and a groove 22 adapted to the crossbeam 1 is opened on the top of the boom 2. The boom 2 is connected to the crossbeam 1 through the connecting plates 21 formed on the front and rear sides of the groove 22, and the connecting plates 21 are fixed to the crossbeam 1 by bolts 23. Since the boom needs to bear a large load for a long time, the bolts at the connecting plate of the boom, which is the connection between the boom and the crossbeam, become the weakest part of the entire structure. Once the bolts break or the connecting plate is damaged, it is very easy to cause the risk of the liquid tank body being unhooked and falling during the lifting process. This has always been a problem that needs to be solved urgently in the industry. Once this risk occurs, it will not only pose a serious threat to the life safety of the operators, but also may cause damage to the steelmaking equipment, and have a serious impact on production safety and equipment life.

[0003] On the other hand, the fixed position design of the traditional gantry hook structure also limits its versatility. Since the positions of the two hooks cannot be adjusted, this structure is difficult to adapt to tanks of different sizes, which requires a dedicated overhead crane for each size of tank, which easily leads to resource waste and inconvenience in operation. Therefore, a metallurgical crane gantry hook structure with strong versatility, horizontal movement and adjustment, and effective anti-falling function is needed. Utility Model Content

[0004] The purpose of the utility model is to provide a fall-proof metallurgical crane gantry hook structure, which can enhance the versatility of the gantry hook and significantly reduce the risk of unhooking during lifting, ensure the safety of operators, reduce damage to steelmaking equipment, and effectively improve production safety and equipment life.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A fall-proof metallurgical crane gantry hook structure comprises booms respectively arranged on the left and right sides of a crossbeam and hooks connected to the booms; guide plates and protective devices adapted to the two booms are correspondingly arranged on the front and rear sides of the crossbeam; two connecting plates of the booms are movably arranged on the corresponding guide plates; the protective device comprises a limit groove horizontally arranged on one side of the guide plate, a limit ball slidably arranged in the limit groove, and a chain with one end arranged on the connecting plate of the boom and the other end connected to the limit ball; a sliding fall-proof device is cooperatively arranged between the groove of the boom and the bottom plate of the crossbeam.

[0007] A further improvement of the technical solution of the utility model is that an upwardly arched arcuate slide groove is provided on the guide plate, and the boom is slidably arranged on the arcuate slide groove of the guide plate through a pin shaft arranged on its connecting plate.

[0008] A further improvement of the technical solution of the utility model is that a displacement hole cooperating with the guide plate is opened on the bottom plate of the crossbeam along its length direction.

[0009] A further improvement of the technical solution of the utility model is that the sliding anti-fall device includes an arc guide rail arranged in the crossbeam and located on the front and rear sides of the displacement hole to adapt to the arc slide groove, and a T-shaped sliding component arranged on the groove of the boom and passing through the displacement hole to connect with the two arc guide rails.

[0010] A further improvement of the technical solution of the utility model is that the T-shaped sliding component includes a connecting block arranged on the groove of the boom and a moving block correspondingly arranged on the front and rear sides of the connecting block through a rotating shaft and adapted to the arc guide rail.

[0011] A further improvement of the technical solution of the utility model is that the arcuate slide grooves correspondingly arranged on the guide plates on the front and rear sides of the cross beam are interconnected, and a pin shaft is arranged between the two connecting plates of the boom, which sequentially penetrates the front and rear arcuate slide grooves and is slidably connected thereto.

[0012] A further improvement of the technical solution of the utility model is that the arcuate slide grooves correspondingly arranged on the guide plates on the front and rear sides of the cross beam are not interpenetrating, and the two connecting plates of the boom are respectively provided with pin shafts slidably connected to the front and rear arcuate slide grooves.

[0013] A further improvement of the technical solution of the utility model is that the length of the limiting groove is adapted to the arc-shaped sliding groove and baffles are arranged on the upper and lower sides thereof, and the distance between the two baffles is smaller than the diameter of the limiting ball.

[0014] Due to the adoption of the above technical solution, the technical progress achieved by the utility model is:

[0015] The utility model discloses a metallurgical crane gantry hook structure which can enhance the versatility of the gantry groove, and can also significantly reduce the risk of unhooking during the lifting process, thereby ensuring the safety of operators, reducing damage to steelmaking equipment, and can effectively improve production safety and equipment life.

[0016] The utility model adopts guide plates adapted to the two hanging arms correspondingly arranged on the front and rear sides of the cross beam, and the two connecting plates of the hanging arms are movably arranged on the corresponding guide plates, so that the two hanging arms can move relatively to adjust their positions, thereby being able to adapt to tanks of different sizes and having high versatility.

[0017] The utility model adopts an upwardly arched arc slide groove on the guide plate, and the boom is slidably set on the arc slide groove through a pin shaft set on its connecting plate. This design enables the boom to adapt to different working angles and positions, improves the flexibility and application range of the boom, and can also provide better support, making the boom more stable during movement, especially when carrying heavy objects, and can effectively reduce shaking and vibration.

[0018] The utility model adopts a sliding anti-falling device arranged between the groove of the boom and the bottom plate of the beam as the first insurance to prevent the boom from falling. The sliding falling device includes an arc guide rail arranged on the bottom plate of the beam and adapted to the arc slide groove, and a T-shaped sliding component arranged on the groove of the boom and slidably connected to the arc guide rail. When the pin shaft on the boom slides along the arc slide groove, the T-shaped sliding component also slides along the arc guide rail, and the moving trajectory of the T-shaped sliding component is consistent with that of the pin shaft, so that when the boom is moving to adjust its position and lifting the tank body, the pin shaft and the T-shaped sliding component bear the load together, which can effectively increase the load resistance strength of the boom, effectively prevent damage to the boom, and to a large extent avoid the risk of unhooking and falling bags.

[0019] The utility model adopts a protective device that is correspondingly arranged on the front and rear sides of the cross beam and is adapted to the two booms as a second insurance to prevent the boom from falling. One end of the chain on the protective device is connected to the boom and the other end is connected to a limiting ball in the limiting groove. The limiting ball can move in the limiting groove with the boom through the chain. If the sliding anti-falling device is also damaged, resulting in the boom unfortunately breaking, the chain on the protective device can effectively prevent the boom from falling, thereby ensuring the safety of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of a conventional gantry hook structure in the background art;

[0021] Figure 2 It is a three-dimensional diagram of the anti-fall metallurgical crane gantry hook structure of the utility model;

[0022] Figure 3 It is a side view of the anti-fall metallurgical crane gantry hook structure of the utility model;

[0023] Figure 4 It is a partial enlarged view of the guide plate and the sliding anti-falling device in the gantry hook structure of the utility model;

[0024] Figure 5 It is a structural schematic diagram of a T-shaped sliding component in the gantry hook structure of the utility model;

[0025] Among them, 1. beam, 2. boom, 21. connecting plate, 22. groove, 23. bolt, 3. hook, 4. guide plate, 41. arc-shaped slide groove, 5. pin shaft, 6. limit groove, 7. limit ball, 8. chain, 9. displacement hole, 10. arc-shaped guide rail, 11. T-shaped sliding part, 111. connecting block, 112. rotating shaft, 113. moving block. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the embodiments:

[0027] Example 1

[0028] like Figure 2 As shown, this embodiment provides a fall-proof metallurgical crane gantry hook structure, including a crossbeam 1, a boom 2 and a hook 3 of a gantry, the boom 2 being respectively arranged on the left and right sides of the crossbeam 1, and the hook 3 being arranged at the bottom of the boom 2 and connected to the boom 2. Guide plates 4 and protective devices are correspondingly arranged on the front and rear sides of the crossbeam 1, and the guide plates 4 and protective devices are respectively adapted to two booms 2, that is, each boom 2 is equipped with two guide plates 4 and protective devices, and the two connecting plates 21 of the boom 2 are respectively movably arranged on the corresponding guide plates 4, so that the two booms 2 can be relatively moved to adjust their positions, so as to adapt to tanks of different sizes, and have high versatility.

[0029] Specifically, an arc-shaped slide groove 41 is provided on the guide plate 4, and the boom 2 is slidably arranged on the arc-shaped slide groove 41 of the corresponding guide plate 4 through the pin shaft 5 arranged on its connecting plate 21. The arc-shaped slide grooves 41 correspondingly arranged on the guide plates 4 on the front and rear sides of the crossbeam are not interlinked, and the two connecting plates 21 of the boom 2 are respectively provided with pin shafts 5, and the boom 2 is slidably connected with the front and rear arc-shaped slide grooves 41 through the two pin shafts 5. The pin shaft 5 can drive the boom 2 to slide in the arc-shaped slide groove 41 of the guide plate 4, and the arc-shaped slide groove 41 is arranged to be arched upward. This design enables the boom 2 to adapt to different working angles and positions, improves the flexibility and application range of the boom 2, and can also provide better support, so that the boom 2 is more stable during movement, especially when carrying heavy objects, which can effectively reduce shaking and vibration.

[0030] A sliding anti-falling device is provided between the groove 22 of the boom and the bottom plate of the crossbeam 1 as the first insurance to prevent the boom 2 from falling, while the protective device serves as the second insurance to prevent the boom 2 from falling.

[0031] Two displacement holes 9 corresponding to the suspension arm 2 are provided on the bottom plate of the cross beam 1 along its length direction, and the length of the displacement holes 9 is adapted to the guide plate 4. Figure 3 and Figure 4As shown, the sliding anti-falling device includes an arc guide rail 10 and a T-shaped sliding component 11. The arc guide rail 10 is arranged in the crossbeam 1, and the arc guide rail 10 is respectively located at the front and rear sides of the displacement hole 9. The arc guide rail 10 is adapted to the arc slide groove 41, that is, the arcs of the two are consistent. The T-shaped sliding component 11 is arranged on the groove 22 of the boom, and the T-shaped sliding component 11 passes through the displacement hole 9 and is slidably connected with the two arc guide rails 10. The sliding anti-falling device serves as the first insurance to prevent the boom from falling. When the pin shaft 5 on the boom 2 slides along the arc slide groove 41, the T-shaped sliding component 11 also slides along the arc guide rail 10. The moving trajectory of the T-shaped sliding component 11 is consistent with that of the pin shaft 5, so that when the boom 2 moves to adjust the position and lifts the tank body, the pin shaft 5 and the T-shaped sliding component 11 bear the load together, which can effectively increase the load resistance strength of the boom 2, effectively prevent the boom 2 from being damaged, and largely avoid the risk of unhooking and falling.

[0032] In order to further ensure the stability of the boom 2, Figure 5 As shown, the T-shaped sliding component 11 is composed of a connecting block 111, a rotating shaft 112 and two moving blocks 113. The connecting block 111 is arranged on the groove 22 of the boom 2. The two moving blocks 113 are correspondingly arranged on the front and rear sides of the connecting block 111 through the rotating shaft 112. The moving block 113 is adapted to the arc-shaped guide rail 10, and an arc-shaped groove matching the arc-shaped guide rail 10 is provided at the bottom thereof. When the pin 5 on the boom 2 slides along the arc-shaped slide groove 41, the two moving blocks 113 also slide along the arc-shaped guide rail 10. At this time, the moving block 113 moves at a certain angle, and the connecting block 111 connected to the moving block 113 through the rotating shaft 112 can remain vertical during movement, thereby ensuring that the boom 2 connected to the connecting block 111 remains stable during the movement.

[0033] like Figure 2 As shown, the protective device includes a limit groove 6, a limit ball 7 and a chain 8. The limit groove 6 is horizontally arranged on one side of the guide plate 4, and the limit ball 7 is slidably arranged in the limit groove 6. One end of the chain 8 is arranged on the connecting plate 21 of the boom 2, and the other end thereof is connected to the limit ball 7. The limit ball 7 can move in the limit groove 6 following the boom 2 through the chain. If the first safety measure sliding anti-falling device is damaged, resulting in the boom 2 being unfortunately broken, then the chain 8 on the protective device can effectively prevent the boom from falling and ensure the safety of the operator. The length of the limit groove 6 is adapted to the arc-shaped slide groove 41, and baffles are arranged on the upper and lower sides thereof. The distance between the two baffles is less than the diameter of the limit ball 7. The function of the baffle is to limit the limit ball 7 to move in the limit groove 6 to prevent the limit ball 7 from falling out.

[0034] Example 2

[0035] This embodiment provides a fall-proof metallurgical crane gantry hook structure, in which the structure of each component and the connection relationship between the components are the same as those in Embodiment 1, except that:

[0036] The arc-shaped slide grooves 41 correspondingly arranged on the guide plates 4 on the front and rear sides of the cross beam 1 are interconnected, and the two connecting plates 21 of the boom 2 are connected by a pin shaft 5 that sequentially penetrates the front and rear arc-shaped slide grooves 41, and the boom 2 is slidably connected to the front and rear arc-shaped slide grooves 41 through the pin shaft 5.

[0037] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A fall-proof metallurgical crane gantry hook structure, comprising a suspension arm (2) respectively arranged on the left and right sides of a crossbeam (1) and a suspension hook (3) connected to the suspension arm (2), characterized in that: Guide plates (4) adapted to the two booms (2) and a protective device are correspondingly arranged on the front and rear sides of the crossbeam (1); the two connecting plates (21) of the boom (2) are movably arranged on the corresponding guide plates (4); the protective device comprises a limit groove (6) horizontally arranged on one side of the guide plate (4), a limit ball (7) slidably arranged in the limit groove (6), and a chain (8) with one end arranged on the connecting plate (21) of the boom and the other end connected to the limit ball (7); a sliding anti-falling device is arranged in cooperation between the groove (22) of the boom and the bottom plate of the crossbeam (1).

2. The anti-fall metallurgical crane gantry hook structure according to claim 1 is characterized by: The guide plate (4) is provided with an arc-shaped sliding groove (41) that is curved upward, and the boom (2) is slidably arranged on the arc-shaped sliding groove (41) of the guide plate via a pin shaft (5) arranged on its connecting plate (21).

3. The anti-fall metallurgical crane gantry hook structure according to claim 2 is characterized by: A displacement hole (9) cooperating with the guide plate (4) is provided on the bottom plate of the crossbeam (1) along its length direction.

4. The anti-fall metallurgical crane gantry hook structure according to claim 3 is characterized by: The sliding anti-falling device comprises an arc-shaped guide rail (10) arranged in the crossbeam (1) and located at the front and rear sides of the displacement hole (9) and adapted to the arc-shaped slide groove (41); and a T-shaped sliding component (11) arranged on the groove (22) of the boom and penetrating the displacement hole (9) and connected to the two arc-shaped guide rails (10).

5. The anti-fall metallurgical crane gantry hook structure according to claim 4 is characterized by: The T-shaped sliding component (11) comprises a connecting block (111) arranged on the groove (22) of the suspension arm, and a moving block (113) correspondingly arranged on the front and rear sides of the connecting block (111) via a rotating shaft (112) and adapted to the arc-shaped guide rail (10).

6. A fall-proof metallurgical crane gantry hook structure according to any one of claims 2 to 5, characterized in that: The arc-shaped slide grooves (41) correspondingly arranged on the guide plates (4) at the front and rear sides of the crossbeam (1) are connected to each other, and a pin shaft (5) is arranged between the two connecting plates (21) of the boom (2) and sequentially passes through the two arc-shaped slide grooves (41) and is slidably connected thereto.

7. A fall-proof metallurgical crane gantry hook structure according to any one of claims 2 to 5, characterized in that: The arc-shaped slide grooves (41) correspondingly arranged on the guide plates (4) on the front and rear sides of the crossbeam (1) are not interlinked with each other, and the two connecting plates (21) of the boom (2) are respectively provided with pin shafts (5) slidably connected to the two front and rear arc-shaped slide grooves (41).

8. The anti-fall metallurgical crane gantry hook structure according to claim 2 is characterized by: The length of the limiting groove (6) is adapted to the arc-shaped sliding groove (41), and baffles are provided on the upper and lower sides thereof, and the distance between the two baffles is smaller than the diameter of the limiting ball (7).

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