Zinc dross gripping device

Abstract

This utility model relates to the technical field of steel pipe galvanizing, and in particular to a zinc slag grabbing device, comprising a first grab bucket, a second grab bucket, and a mounting plate. Both the first and second grab buckets are located below the mounting plate. A rotating shaft is disposed between the first and second grab buckets, and two separately disposed first connecting rods are fixed on the rotating shaft. The first connecting rods extend upward through the mounting plate and are fixed to a connecting plate. First fixing blocks are fixed to both sides of the first grab bucket, and the first fixing blocks are rotatably connected to the rotating shaft. Second fixing blocks are fixed to both sides of the second grab bucket, and the second fixing blocks are also rotatably connected to the rotating shaft. A second connecting rod is hinged between the first grab bucket and the mounting plate, and a third connecting rod is hinged between the second grab bucket and the mounting plate. A drive assembly for driving the connecting plate upward is disposed on the mounting plate. This utility model reduces the safety hazards associated with using pneumatic or hydraulic cylinders in the high-temperature area of ​​a zinc pot.

Description

Technical Field

[0001] This utility model relates to the technical field of steel pipe galvanizing, and in particular to a zinc slag grabbing device. Background Technology

[0002] In the hot-dip galvanizing process of steel pipes, zinc dross in the zinc pot has a significant impact on the quality of the hot-dip galvanized products. Therefore, it is necessary to clean the zinc dross in the zinc pot regularly to keep the galvanizing solution clean. In order not to affect production efficiency, most dross removers scrape the bottom of the zinc pot at high temperatures. Most existing dross removers use cylinders or hydraulic cylinders to control the grabbing and unloading actions of the grab bucket, achieving semi-automatic control of the grab bucket. However, cylinders or hydraulic cylinders require air or hydraulic oil, making the control mechanism complex, and their use in the high-temperature area of ​​the zinc pot poses significant safety hazards. Utility Model Content

[0003] In order to solve the problems existing in the prior art, the present invention provides a zinc slag grabbing device.

[0004] This utility model provides a zinc dross grabbing device, which adopts the following technical solution:

[0005] A zinc slag grabbing device includes a first grab bucket, a second grab bucket, and a mounting plate. Both the first and second grab buckets are located below the mounting plate. A rotating shaft is provided between the first and second grab buckets. Two separately arranged first connecting rods are fixed on the rotating shaft. The first connecting rods pass upward through the mounting plate and are fixed to a connecting plate. First fixing blocks are fixed on both sides of the first grab bucket and are rotatably connected to the rotating shaft. Second fixing blocks are fixed on both sides of the second grab bucket and are also rotatably connected to the rotating shaft. A second connecting rod is hinged between the first grab bucket and the mounting plate, and a third connecting rod is hinged between the second grab bucket and the mounting plate. A drive assembly for driving the connecting plate to move upward is provided on the mounting plate.

[0006] Optionally, the drive assembly includes two moving rods, each spaced apart and passing through a mounting plate. A fourth connecting rod is fixed to the top of the moving rods and is located between the two moving rods. A hook is fixed to the fourth connecting rod. A mounting block is fixed to the connecting block, and a mounting hole is provided on the mounting block. The mounting hole and the hook are tied together by a rope. A first lifting ring is fixed to the moving rod, and the crane's hook is hooked onto the first lifting ring.

[0007] Optionally, the drive assembly includes a winch and a support frame. The support frame includes a top plate and a support plate. The support plate is fixed to the mounting plate, the top plate is fixed to the top of the support plate, the winch is fixed to the bottom of the support plate, and the wire rope of the winch is fixed to the connecting plate.

[0008] Optionally, connecting blocks are fixed on both sides of the top plate, electromagnets are fixed below the connecting blocks, and two magnetic blocks are fixed on the top of the connecting plate, each corresponding to an electromagnet.

[0009] Compared with the prior art, the present invention has the following technical effects:

[0010] This invention uses an overhead crane or winch to lift the connecting plate, thereby opening and closing the first and second grab buckets. It does not require the use of pneumatic or hydraulic cylinders for driving, thus avoiding the safety hazards of using air or hydraulic oil in high-temperature conditions. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model;

[0012] Figure 2 This is a structural schematic diagram of Embodiment 2 of this utility model.

[0013] Explanation of reference numerals in the attached drawings: 1. First grab bucket; 11. First fixing block; 12. Second connecting rod; 2. Second grab bucket; 21. Second fixing block; 22. Third connecting rod; 3. Mounting plate; 4. Rotating shaft; 41. First connecting rod; 42. Connecting plate; 5. Drive assembly; 51. Moving rod; 52. Hook; 53. Limiting plate; 54. Fourth connecting rod; 55. First lifting ring; 56. Mounting block; 561. Mounting hole; 57. Winch; 571. Wire rope; 58. Support frame; 581. Top plate; 582. Support plate; 583. Second lifting ring; 584. Connecting block; 585. Electromagnet; 586. Magnetic block. Detailed Implementation

[0014] The following is in conjunction with the appendix Figure 1 -Appendix Figure 2 The present invention will be described in further detail below.

[0015] Embodiment 1 of this utility model

[0016] Reference Figure 1 This utility model discloses a zinc slag grabbing device, including a first grab bucket 1, a second grab bucket 2, and a mounting plate 3. Both the first grab bucket 1 and the second grab bucket 2 are located below the mounting plate 3. A rotating shaft 4 is provided between the first grab bucket 1 and the second grab bucket 2, and the first grab bucket 1 and the second grab bucket 2 are symmetrically arranged about the rotating shaft 4. Two separately arranged first connecting rods 41 are fixed on the rotating shaft 4. The first connecting rods 41 extend upward through the mounting plate 3 and are fixed to a connecting plate 42. The first connecting rods 41 are capable of moving up and down.

[0017] Both sides of the first grab bucket 1 are fixed with first fixing blocks 11, which are rotatably connected to the rotating shaft 4. Both sides of the second grab bucket 2 are fixed with second fixing blocks 21, which are also rotatably connected to the rotating shaft 4. Two second connecting rods 12 are provided between the first grab bucket 1 and the mounting plate 3. One end of the second connecting rod 12 is hinged to the bottom of the mounting plate 3, and the other end of the second connecting rod 12 is hinged to the top wall of the first grab bucket 1. A third connecting rod 22 is provided between the second grab bucket 2 and the mounting plate 3. One end of the third connecting rod 22 is hinged to the bottom of the mounting plate 3, and the other end of the third connecting rod 22 is hinged to the top wall of the second grab bucket 2.

[0018] The mounting plate 3 is equipped with a drive assembly 5 that drives the connecting plate 42 to move upward. When the mounting plate 3 moves upward, the first connecting rod 41 drives the rotating shaft 4 to move upward, thereby closing the first grab bucket 1 and the second grab bucket 2.

[0019] The drive assembly 5 includes two moving rods 51 and hooks 52. The two moving rods 51 pass through the mounting plate 3. A limit plate 53 is fixed to the bottom of each moving rod 51, and a fourth connecting rod 54 is fixed to the top of each moving rod 51. The hook 52 is fixed to the fourth connecting rod 54, and a first lifting ring 55 is fixed to the top of each moving rod 51. The crane's hook is hooked onto the first lifting ring 55. A mounting block 56 is fixed to the top of the connecting plate 42. Mounting holes 561 are provided on the mounting block 56, and the mounting holes 561 are secured to the hooks 52 by rope.

[0020] When grabbing zinc dross, firstly, a rope is tied between the mounting block 56 and the hook 52. Then, the first lifting ring 55 is pulled upward by the overhead crane. The first lifting ring 55 drives the moving rod 51 to move upward (at this time, the mounting plate 3 has not yet moved). This causes the fourth connecting rod 54 to drive the connecting plate 42 to move upward. The connecting plate 42 drives the first connecting rod 41 to move upward. The first connecting rod 41 drives the rotating shaft 4 to move upward. The rotating shaft 4 drives the first grab bucket 1 and the second grab bucket 2 to grab the zinc dross and then close. When the first grab bucket 1 and the second grab bucket 2 are closed, the limiting plate 53 abuts against the bottom of the mounting plate 3. When the moving rod 51 is pulled upward, the mounting plate 3, the first grab bucket 1, and the second grab bucket 2 move upward together.

[0021] When it is necessary to open the first grab bucket 1 and the second grab bucket 2, the operator needs to untie the rope between the hook 52 and the mounting block 56. Then, the first connecting rod 41 moves downward under the action of gravity, and the rotating shaft 4 moves downward accordingly, opening the first grab bucket 1 and the second grab bucket 2.

[0022] Embodiment 2 of this utility model

[0023] Reference Figure 2The difference from Embodiment 1 lies in the drive assembly 5. The drive assembly 5 includes a winch 57 and a support frame 58. The support frame 58 includes a top plate 581 and support plates 582. Two spaced-apart support plates 582 are fixed to the bottom of the top plate 581. The winch 57 is fixed below the support plates 582, and the wire rope 571 of the winch 57 is fixed to the connecting plate 42.

[0024] A second lifting ring 583 is fixed to the top of the top plate 581, and the hook of the overhead crane hooks onto the second lifting ring 583. When the first grab bucket 1 and the second grab bucket 2 are closed, the wire rope 571 of the winch 57 rises, driving the connecting plate 42 to rise, thereby driving the first connecting rod 41 and the rotating shaft 4 to rise, thus closing the first grab bucket 1 and the second grab bucket 2. When the first grab bucket 1 and the second grab bucket 2 are opened, the wire rope 571 of the winch 57 descends, the first connecting rod 41 and the rotating shaft 4 descend, thereby opening the first grab bucket 1 and the second grab bucket 2.

[0025] Connecting blocks 584 are fixed on both sides of the top plate 581, and electromagnets 585 are fixed below the connecting blocks 584. Two magnetic blocks 586 are fixed on the top of the connecting plate 42, each corresponding to an electromagnet 585. When the connecting plate 42 moves upward and the first grab bucket 1 and the second grab bucket 2 are closed, the electromagnets 585 are energized, and the magnetic blocks 586 are attracted and fixed to the electromagnets 585. When it is necessary to open the first grab bucket 1 and the second grab bucket 2, the electromagnets 585 are de-energized first.

[0026] The advantage of Embodiment 2 of this utility model is that it eliminates the need for operators to tie the hook 52 and the mounting block 56 with ropes, thereby improving work efficiency and the personal safety of operators.

[0027] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A zinc dross grabbing device, characterized in that: The device includes a first grab (1), a second grab (2), and a mounting plate (3). The first grab (1) and the second grab (2) are both located below the mounting plate (3). A rotating shaft (4) is provided between the first grab (1) and the second grab (2). Two separate first connecting rods (41) are fixed on the rotating shaft (4). The first connecting rods (41) pass through the mounting plate (3) upward and are fixed with a connecting plate (42). A first fixing block (11) is fixed on both sides of the first grab (1). The first fixing block (11) is rotatably connected to the rotating shaft (4). A second fixing block (21) is fixed on both sides of the second grab (2). The second fixing block (21) is also rotatably connected to the rotating shaft (4). A second connecting rod (12) is hinged between the first grab (1) and the mounting plate (3). A third connecting rod (22) is hinged between the second grab (2) and the mounting plate (3). A drive assembly (5) is provided on the mounting plate (3) to drive the connecting plate (42) to move upward.

2. The zinc slag grabbing device according to claim 1, characterized in that: The drive assembly (5) includes a moving rod (51), two moving rods (51) spaced apart, both of which pass through the mounting plate (3). A fourth connecting rod (54) is fixed to the top of the moving rod (51). The fourth connecting rod (54) is located between the two moving rods (51). A hook (52) is fixed to the fourth connecting rod (54). A mounting block (56) is fixed on the connecting block (584). A mounting hole (561) is opened on the mounting block (56). The mounting hole (561) and the hook (52) are tied together by a rope. A first lifting ring (55) is fixed on the moving rod (51). The crane's hook is hooked on the first lifting ring (55).

3. The zinc dross grabbing device according to claim 1, characterized in that: The drive assembly (5) includes a winch (57) and a support frame (58). The support frame (58) includes a top plate (581) and a support plate (582). The support plate (582) is fixed on the mounting plate (3). The top plate (581) is fixed on the top of the support plate (582). The winch (57) is fixed on the bottom of the support plate (582). The wire rope (571) of the winch (57) is fixed to the connecting plate (42).

4. The zinc dross grabbing device according to claim 3, characterized in that: Connecting blocks (584) are fixed on both sides of the top plate (581), and electromagnets (585) are fixed below the connecting blocks (584). Two magnetic blocks (586) are fixed on the top of the connecting plate (42), and each magnetic block (586) corresponds to an electromagnet (585).

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