Novel multifunctional crown block grab bucket

Abstract

The novel multifunctional crown block grab bucket comprises a connecting frame, a first jaw plate and a second jaw plate, the first jaw plate is provided with a first rotating pin rotationally connected with the connecting frame, the second jaw plate is provided with a second rotating pin rotationally connected with the connecting frame, the two ends of the first jaw plate are fixedly connected with first side plates, and the two ends of the second jaw plate are fixedly connected with second side plates. The first jaw plate is fixedly connected with a first side plate, the second jaw plate is fixedly connected with a second side plate, the first side plate and the second side plate are clamped, a clearance groove is formed between the first jaw plate and the second jaw plate, the first jaw plate is fixedly connected with a first rib plate, the second jaw plate is fixedly connected with a second rib plate, and the first rib plate and the second rib plate extend in the direction close to the clearance groove. The jaw plate has the advantages that the first jaw plate and the second jaw plate are prevented from colliding, and the effect of preventing the first jaw plate and the second jaw plate from being excessively abraded is achieved. The first jaw plate and the second jaw plate are respectively supported by the first rib plate and the second rib plate, so that the grab bucket is not easy to damage.

Description

Technical Field

[0001] This utility model relates to the technical field of grab buckets, specifically to a novel multifunctional overhead crane grab bucket. Background Technology

[0002] The multi-functional overhead crane is a piece of equipment used in the aluminum electrolysis production process. Its main functions include the shell-breaking mechanism, electrode-changing mechanism, aluminum ladle lifting, material unloading mechanism, busbar hoisting, and lifting of other heavy objects. The grab bucket is the core component of the aluminum electrolysis overhead crane's tool mechanism. In aluminum electrolysis production, after the electrolyte reacts with the anode in the electrolytic cell, a hard shell solidifies around the anode carbon block. During the electrode-changing process, the shell-breaking machine strikes the hard shell material, causing it to slide into the electrolytic cell. The grab bucket also handles the carbon slag and detached electrode residue produced during the electrolytic reaction of the anode carbon block.

[0003] Chinese utility model patent CN210133818U discloses a multifunctional integrated overhead crane grab bucket for aluminum electrolysis, comprising a grab bucket and a scraper. The grab bucket consists of a left grab bucket and a right grab bucket. The front and rear sides of the right grab bucket are symmetrically equipped with reinforcing ribs, and the right outer side of the right grab bucket has a positioning ear with a second positioning hole. The rear side of the right grab bucket has a right drive ear with a second drive hole. The front and rear sides of the left grab bucket are also equipped with reinforcing ribs, and the outer side of the left grab bucket has a left drive ear with a first positioning hole. A vibration device drives the grab bucket to vibrate, thereby cleaning the residue. Simultaneously, the scraper slides on a chute to further clean the residue remaining inside the grab bucket, ensuring the cleanliness of the grab bucket's interior. This also reduces the workload of workers, improves work efficiency, and prevents safety accidents caused by residual residue falling from inside the grab bucket.

[0004] Grab buckets are subjected to prolonged immersion in high-temperature liquids and frequent impacts from closing and retracting, making the main and auxiliary jaw plates prone to melting and the jaw plate welds prone to cracking. Damaged grab buckets require replacement, which is not only costly but also has a long delivery cycle, failing to meet on-site needs and severely impacting electrolytic cell production. Therefore, existing grab buckets suffer from the problem of being easily damaged. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a new type of multi-functional crane grab bucket, which includes a connecting frame, a first jaw plate and a second jaw plate. This new type of multi-functional crane grab bucket has the advantage that the grab bucket is not easily damaged.

[0006] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0007] A novel multi-functional overhead crane grab includes a connecting frame, a first jaw plate, and a second jaw plate. The first jaw plate is equipped with a first rotating pin rotatably connected to the connecting frame, and the second jaw plate is equipped with a second rotating pin rotatably connected to the connecting frame. First side plates are fixedly connected to both ends of the first jaw plate, and second side plates are fixedly connected to the second jaw plate. The first side plates and the second side plates are interlocked. A clearance groove is provided between the first jaw plate and the second jaw plate. A first stiffener is fixedly connected to the first jaw plate, and a second stiffener is fixedly connected to the second jaw plate. Both the first stiffener and the second stiffener extend in a direction close to the clearance groove.

[0008] This design prevents the first and second jaw plates from colliding, thus preventing excessive wear on both plates. Simultaneously, the first and second stiffening plates respectively support the first and second jaw plates, effectively improving their structural stability and making the grab less prone to damage.

[0009] Preferably, the first jaw plate has a first curved section, and the thickness of the first stiffening plate gradually increases along the direction close to the first curved section.

[0010] This design prevents the first jaw plate from deforming at the first bending section when gripping the shell material.

[0011] Preferably, the end of the first stiffener near the clearance groove is flush with the first jaw plate.

[0012] This setup ensures that the shell material can enter above the first jaw plate.

[0013] Preferably, the second jaw plate has a second curved section, and the thickness of the second stiffening plate gradually increases along the direction close to the second curved section.

[0014] This design prevents the second jaw plate from deforming at the second bending section when gripping the shell material.

[0015] Preferably, the end of the second stiffener near the clearance groove is flush with the second jaw plate.

[0016] This setup ensures that the shell material can enter above the second jaw plate.

[0017] Preferably, a first self-lubricating bearing is provided between the first rotating pin and the connecting frame, and a second self-lubricating bearing is provided between the second rotating pin and the connecting frame.

[0018] This configuration allows the first and second rotating pins to rotate more smoothly on the connecting frame.

[0019] Preferably, the first rotating pin is provided with a first slot, the first jaw plate is fixedly installed with a first locking plate that is locked into the first slot, the second rotating pin is provided with a second slot, and the second jaw plate is fixedly installed with a second locking plate that is locked into the second slot.

[0020] This configuration improves the stability between the second jaw plate and the second rotating pin.

[0021] Preferably, the first jaw plate is fixedly connected to a drive plate, the connecting frame is fixedly connected to a fixed frame, a drive component is provided between the fixed frame and the drive plate, and the two ends of the drive component are rotatably connected to the fixed frame and the drive plate, respectively.

[0022] This setup enables the first jaw plate to rotate on the connecting frame via a drive component.

[0023] Preferably, the first jaw plate is equipped with a driving pin, the second jaw plate is equipped with a driven pin, and a linkage rod is provided between the driving pin and the driven pin. The driving pin is located below the line connecting the first rotating pin and the driven pin, and the driven pin is located above the second rotating pin.

[0024] This configuration enables the first and second jaw plates to move closer together.

[0025] Preferably, the first jaw plate is provided with a first elongated hole, which is parallel to the first rib plate, and the second jaw plate is provided with a second elongated hole, which is parallel to the second rib plate.

[0026] This design reduces the amount of residual electrolyte in the shell material, thus minimizing electrolyte loss.

[0027] Compared with the prior art, this utility model has achieved beneficial technical effects:

[0028] 1. When the first and second jaw plates close, the first and second side plates interlock to form a clearance groove between them, preventing collisions and excessive wear, and protecting the grab bucket from damage during impacts. Simultaneously, the first and second stiffening plates, respectively, support the first and second jaw plates, effectively improving their structural stability and enhancing the grab bucket's resistance to damage.

[0029] 2. When the first jaw plate and the second jaw plate are closed, the liquid electrolyte can flow downward through the clearance groove between the first jaw plate and the second jaw plate, thereby achieving a filtering effect, reducing the residual electrolyte in the shell material, and reducing electrolyte loss. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of a novel multifunctional overhead crane grab bucket in an embodiment of this utility model;

[0031] Figure 2 This is a schematic diagram of the structure of the first jaw plate and the second jaw plate in an embodiment of this utility model;

[0032] Figure 3 This is a schematic diagram of the structure of the driving pin, linkage rod, and driven pin in an embodiment of this utility model;

[0033] Figure 4 This is a schematic diagram of the structure of the first self-lubricating bearing and the second self-lubricating bearing in an embodiment of this utility model.

[0034] The technical features referred to by the various reference numerals in the accompanying drawings are as follows:

[0035] 11. Connecting frame; 12. Fixing frame; 13. Driving component; 14. Driving plate; 21. First jaw plate; 22. First rotating pin; 23. First side plate; 24. First stiffening plate; 25. First bending section; 26. First self-lubricating bearing; 27. First slot; 28. First clamping plate; 29. ​​First elongated hole; 31. Second jaw plate; 32. Second rotating pin; 33. Second side plate; 34. Second stiffening plate; 35. Second bending section; 36. Second self-lubricating bearing; 37. Second slot; 38. Second clamping plate; 39. Second elongated hole; 41. Driving pin; 42. Driven pin; 43. Linkage rod; 51. Clearance groove. Detailed Implementation

[0036] To make the objectives, technical solutions and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments. However, the scope of protection of this utility model is not limited to the specific embodiments described below.

[0037] refer to Figure 1-4A novel multi-functional overhead crane grab includes a connecting frame 11, a first jaw plate 21, and a second jaw plate 31. The first jaw plate 21 is equipped with a first rotating pin 22 rotatably connected to the connecting frame 11, and the second jaw plate 31 is equipped with a second rotating pin 32 rotatably connected to the connecting frame 11. A drive plate 14 is fixedly connected to the first jaw plate 21, and a fixing frame 12 is fixedly connected to the connecting frame 11. A drive component 13, which is a hydraulic cylinder, is provided between the fixing frame 12 and the drive plate 14. First side plates 23 are fixedly connected to both ends of the first jaw plate 21, and second side plates 33 are fixedly connected to the second jaw plate 31. The first side plates 23 and the second side plates 33 are interlocked. A clearance groove 51 with a width of 15mm is provided between the first jaw plate 21 and the second jaw plate 31. Both sides of the first side plates 23 and the second side plates 33 have open circular holes with a diameter of 60mm, which can reduce the weight of the side plates. The thickness of the first jaw plate 21 and the second jaw plate 31 is 30mm. When the driving member 13 extends, it pushes the first jaw plate 21 to rotate towards the clearance groove 51. When the driving member 13 shortens, it pulls the first jaw plate 21 to rotate away from the clearance groove 51, thereby realizing the function of driving the first jaw plate 21 to rotate on the connecting frame 11 by the driving member 13.

[0038] The first jaw plate 21 is equipped with a driving pin 41, and the second jaw plate 31 is equipped with a driven pin 42. A linkage rod 43 is provided between the driving pin 41 and the driven pin 42. The driving pin 41 is located below the line connecting the first rotating pin 22 and the driven pin 42, and the driven pin 42 is located above the second rotating pin 32. When the first jaw plate 21 rotates towards the clearance groove 51, since the driving pin 41 is located below the first rotating pin 22 and the driven pin 42, it can push the driven pin 42 away from the first jaw plate 21 through the linkage rod 43. The driven pin 42 is located above the second rotating pin 32. When the driven pin 42 is pushed away from the first rotating pin 22, it can drive the second jaw plate 31 to rotate towards the clearance groove 51, thereby realizing the function of driving the first jaw plate 21 and the second jaw plate 31 to move closer to each other.

[0039] A first jaw plate 21 is fixedly connected to a first stiffener 24, and a second jaw plate 31 is fixedly connected to a second stiffener 34. Both the first stiffener 24 and the second stiffener 34 extend along the direction close to the clearance groove 51. The first jaw plate 21 has a first curved section 25, and the thickness of the first stiffener 24 gradually increases along the direction close to the first curved section 25. The first stiffener 24 has the greatest thickness at the first curved section 25, which effectively improves the structural stability of the first curved section 25 and prevents the first jaw plate 21 from deforming at the first curved section 25 when gripping the shell material. One end of the first stiffener 24 near the clearance groove 51 is flush with the first jaw plate 21. The first stiffener 24 and the first jaw plate 21 are flush at the clearance groove 51. During the process of the first jaw plate 21 rotating towards the clearance groove 51 to grip the shell material, the first stiffener 24 is prevented from blocking the shell material, ensuring that the shell material can enter above the first jaw plate 21. The second jaw plate 31 has a second curved section 35, and the thickness of the second stiffener 34 gradually increases along the direction close to the second curved section 35. The second stiffener 34 has its maximum thickness at the second bending section 35, thereby effectively improving the structural stability of the second bending section 35 and preventing the second jaw plate 31 from deforming at the second bending section 35 when gripping the shell material. The end of the second stiffener 34 near the clearance groove 51 is flush with the second jaw plate 31. The second stiffener 34 and the second jaw plate 31 are flush at the clearance groove 51, preventing the second stiffener 34 from blocking the shell material during the rotation of the second jaw plate 31 towards the clearance groove 51 to grip the shell material, ensuring that the shell material can enter above the second jaw plate 31.

[0040] A first self-lubricating bearing 26 is provided between the first rotating pin 22 and the connecting frame 11, and a second self-lubricating bearing 36 is provided between the second rotating pin 32 and the connecting frame 11. The wall thickness of the first self-lubricating bearing 26 and the second self-lubricating bearing 36 is greater than 5mm. The arrangement of the first self-lubricating bearing 26 and the second self-lubricating bearing 36 allows for smoother rotation of the first rotating pin 22 and the second rotating pin 32 on the connecting frame 11. The first rotating pin 22 has a first slot 27, and a first locking plate 28 that engages with the first slot 27 is fixedly installed on the first jaw plate 21. The second rotating pin 32 has a second slot 37, and a second locking plate 38 that engages with the second slot 37 is fixedly installed on the second jaw plate 31. By engaging the first locking plate 28 with the first slot 27, the first locking plate 28 and the first rotating pin 22 are engaged circumferentially, thereby locking the first rotating pin 22 on the first jaw plate 21 and improving the stability between the first jaw plate 21 and the first rotating pin 22. The second locking plate 38 is inserted into the second locking slot 37, so that the second locking plate 38 and the second rotating pin 32 are engaged in the circumferential direction, thereby locking the second rotating pin 32 on the second jaw plate 31 and improving the stability between the second jaw plate 31 and the second rotating pin 32.

[0041] The first jaw plate 21 has a first elongated hole 29, which is parallel to the first stiffener 24. The second jaw plate 31 has a second elongated hole 39, which is parallel to the second stiffener 34. The first elongated hole 29 and the second elongated hole 39 are 150 mm long and 60 mm wide. The first elongated hole 29 and the second elongated hole 39 filter liquid electrolytes in the shell material, allowing the electrolytes to flow downwards through them, reducing the amount of residual electrolytes in the shell material and minimizing electrolyte loss.

[0042] The driving component 13 pushes the driving plate 14 and the first jaw plate 21 to rotate on the connecting frame 11. The first jaw plate 21 drives the second jaw plate 31 to rotate in the opposite direction through the driving pin 41, the linkage rod 43, and the driven pin 42. When the first jaw plate 21 and the second jaw plate 31 approach each other, the grab closes; when the first jaw plate 21 and the second jaw plate 31 move away from each other, the grab opens, thereby realizing the opening and closing of the first jaw plate 21 and the second jaw plate 31, and thus being able to grab the shell material in the electrolytic cell.

[0043] This embodiment has the following advantages:

[0044] When the first jaw plate 21 and the second jaw plate 31 close, they are engaged by the first side plate 23 and the second side plate 33, forming a clearance groove 51 between them. This prevents the first jaw plate 21 and the second jaw plate 31 from colliding, thus preventing excessive wear and damage during collisions. Simultaneously, by providing first stiffening plates 24 and second stiffening plates 34 on the first jaw plate 21 and the second jaw plate 31 respectively, the first and second stiffening plates 24 and 34 support the first and second jaw plates 21, effectively improving their structural stability and ensuring the grab bucket is less prone to damage.

[0045] When the first jaw plate 21 and the second jaw plate 31 are closed, the liquid electrolyte can flow downward through the clearance groove 51 between the first jaw plate 21 and the second jaw plate 31, thereby achieving a filtering effect, reducing the residual electrolyte in the shell material, and reducing electrolyte loss.

[0046] The first elongated hole 29 and the second elongated hole 39 are parallel to the first stiffener 24 and the second stiffener 34, respectively, so that the first stiffener 24 can effectively support the material of the first jaw plate 21 at the first elongated hole 29, thereby improving the structural stability of the first jaw plate 21 at the first elongated hole 29, and the second stiffener 34 can effectively support the material of the second jaw plate 31 at the second elongated hole 39, thereby improving the structural stability of the second jaw plate 31 at the second elongated hole 39.

[0047] This design and modification of the multi-functional overhead crane grab bucket significantly reduces maintenance costs associated with grab bucket replacement and avoids the problem of long lead times for new grab buckets, preventing timely repairs. The redesigned and manufactured grab bucket greatly reduces wear and tear during use, minimizing cracking and other malfunctions, and effectively extending its service life. It also reduces grab bucket downtime for repairs, lowers the workload of maintenance personnel, effectively improves maintenance efficiency, optimizes human resource allocation, eliminates safety hazards, ensures safe operation of the crane, and lays a solid foundation for stable production.

[0048] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the utility model.

Claims

1. A novel multi-functional overhead crane grab bucket, characterized in that: The device includes a connecting frame (11), a first jaw plate (21), and a second jaw plate (31). The first jaw plate (21) is equipped with a first rotating pin (22) that is rotatably connected to the connecting frame (11). The second jaw plate (31) is equipped with a second rotating pin (32) that is rotatably connected to the connecting frame (11). The first jaw plate (21) is fixedly connected to two ends with a first side plate (23). The second jaw plate (31) is fixedly connected to a second side plate (33). The first side plate (23) and the second side plate (33) are engaged. A clearance groove (51) is provided between the first jaw plate (21) and the second jaw plate (31). The first jaw plate (21) is fixedly connected to a first stiffener (24). The second jaw plate (31) is fixedly connected to a second stiffener (34). Both the first stiffener (24) and the second stiffener (34) extend in the direction close to the clearance groove (51).

2. The novel multi-functional overhead crane grab bucket according to claim 1, characterized in that: The first jaw plate (21) is provided with a first curved section (25), and the thickness of the first stiffening plate (24) gradually increases along the direction close to the first curved section (25).

3. The novel multi-functional overhead crane grab bucket according to claim 2, characterized in that: The end of the first stiffening plate (24) near the clearance groove (51) is flush with the first jaw plate (21).

4. The novel multi-functional overhead crane grab bucket according to claim 1, characterized in that: The second jaw plate (31) is provided with a second curved section (35), and the thickness of the second stiffening plate (34) gradually increases along the direction close to the second curved section (35).

5. The novel multi-functional overhead crane grab bucket according to claim 4, characterized in that: The end of the second stiffener (34) near the clearance groove (51) is flush with the second jaw plate (31).

6. The novel multi-functional overhead crane grab bucket according to claim 1, characterized in that: A first self-lubricating bearing (26) is provided between the first rotating pin (22) and the connecting frame (11), and a second self-lubricating bearing (36) is provided between the second rotating pin (32) and the connecting frame (11).

7. The novel multi-functional overhead crane grab bucket according to claim 1, characterized in that: The first rotating pin (22) is provided with a first slot (27), and the first jaw plate (21) is fixedly installed with a first locking plate (28) that is inserted into the first slot (27). The second rotating pin (32) is provided with a second slot (37), and the second jaw plate (31) is fixedly installed with a second locking plate (38) that is inserted into the second slot (37).

8. The novel multi-functional overhead crane grab bucket according to claim 1, characterized in that: The first jaw plate (21) is fixedly connected to a drive plate (14), the connecting frame (11) is fixedly connected to a fixed frame (12), and a drive component (13) is provided between the fixed frame (12) and the drive plate (14). The two ends of the drive component (13) are rotatably connected to the fixed frame (12) and the drive plate (14) respectively.

9. The novel multi-functional overhead crane grab bucket according to claim 1, characterized in that: The first jaw plate (21) is equipped with a driving pin (41), and the second jaw plate (31) is equipped with a driven pin (42). A linkage rod (43) is provided between the driving pin (41) and the driven pin (42). The driving pin (41) is located below the line connecting the first rotating pin (22) and the driven pin (42), and the driven pin (42) is located above the second rotating pin (32).

10. The novel multi-functional overhead crane grab bucket according to claim 1, characterized in that: The first jaw plate (21) is provided with a first elongated hole (29), which is parallel to the first rib plate (24). The second jaw plate (31) is provided with a second elongated hole (39), which is parallel to the second rib plate (34).

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