A kind of opening and closing mechanism of carbon block stack crane clamp

Abstract

The opening and closing mechanism of a carbon block stacking crane clamp belongs to the technical field of stacking crane equipment in a carbon workshop, and particularly relates to an opening and closing mechanism of a carbon block stacking crane clamp. The utility model provides an opening and closing mechanism of a carbon block stacking crane clamp which realizes safe and reliable clamping and releasing of different specifications of carbon blocks under the condition of a large stroke. The utility model is characterized in that: the both ends of the middle beam are provided with supporting arms, and the upper end of the supporting arm is provided with a pin shaft; the upper end of the clamp beam is provided with an electro-hydraulic push rod, the end of the electro-hydraulic push rod is connected with one end of a rotating frame on the clamp beam, and the other end of the rotating frame is provided with a hook matched with the pin shaft.

Description

Technical Field

[0001] This utility model belongs to the technical field of stacking and lifting equipment in carbon workshops, specifically relating to the opening and closing mechanism of a carbon block stacking crane clamp. Background Technology

[0002] Currently, in the anode carbon block production field, stacker cranes with clamping devices are typically used to lift and transport the carbon blocks. The clamping device of an existing stacker crane consists of a clamping beam, a clamping opening and closing mechanism, wire ropes, and a clamping body. The clamping beam is a welded frame structure; the clamping opening and closing mechanism, fixed to the clamping beam, is a winch structure consisting of a geared motor, coupling, wire rope shaft, and seated bearings. The geared motor, the power unit of the opening and closing mechanism, is located in the middle of the clamping beam and has a dual-output shaft structure. The two output shafts are connected to two wire rope shafts via couplings, and the wire rope shafts are fixed to the clamping beam via seated bearings. One end of the wire rope is wound around the wire rope shaft, and the other end is connected to the clamping body; the clamping body is the actuator for gripping the carbon blocks, and it is a linkage structure. The opening and closing mechanism's geared motor operates in both forward and reverse directions. The rotation of the motor's output shaft drives the wire rope shaft, causing the wire rope to wind or unwind on the shaft. This, in turn, moves the clamp body's connecting rod, adjusting the distance between the clamping plates of the paired clamps: when the wire rope winds around the shaft, the distance between the clamping plates decreases, gripping the charcoal block; when the motor rotates in the opposite direction, the wire rope unwinds on the shaft, increasing the distance between the clamping plates, allowing the charcoal block to detach and be released. As the variety of commercial charcoal block specifications increases, the dimensional difference in the gripping direction between blocks becomes larger, requiring a greater adjustment stroke for the clamping plate distance. With increasing automation and intelligence in equipment, the safety requirements for the equipment structure become increasingly stringent. If this structure is used for large-stroke clamps, it means an increased wire rope winding and unwinding stroke, increasing the risk of rope jumping from the chute and scraping against the guide hole during operation. This increases the risk of equipment failure and affects production; therefore, this structure is unsuitable for the automatic stacking of large-stroke commercial charcoal blocks. Utility Model Content

[0003] This utility model addresses the aforementioned problems by providing an opening and closing mechanism for a carbon block stacking crane clamp that enables safe and reliable clamping and release of carbon blocks of different specifications under long stroke conditions.

[0004] This utility model adopts the following technical solution: It includes a clamping beam, with a clamping mechanism below the clamping beam. The clamping mechanism includes a first curved rod hinged inwardly to both sides of the clamping beam, and a second curved rod hinged outwardly to the end of the first curved rod. The lower parts of the two second curved rods are hinged to both ends of an intermediate beam. The lower end of the second curved rod is hinged to the middle of an L-shaped gripper. A swing rod is provided between the end of the L-shaped gripper and the intermediate beam. A gripper is provided at the other end of the L-shaped gripper. A carbon block support foot is also provided on the intermediate beam. The invention is characterized in that: both ends of the intermediate beam are provided with support arms, and the upper end of each support arm is provided with a pin; an electro-hydraulic push rod is provided at the upper end of the clamping beam, and the end of the electro-hydraulic push rod is connected to one end of a rotating frame on the clamping beam. The other end of the rotating frame is provided with a hook that cooperates with the pin.

[0005] As a preferred embodiment of this utility model, the carbon block support foot includes a column fixedly connected to the intermediate beam, and the lower end of the column is a lower support foot.

[0006] Furthermore, the upper end of the column is provided with an upper support foot, which corresponds to the lower surface of the clamp beam.

[0007] As another preferred embodiment of this utility model, the electro-hydraulic actuator is hinged to the clamp beam, the rotating frame includes a connecting plate, the upper end of the connecting plate is hinged to the electro-hydraulic actuator, the lower end of the connecting plate is provided with a mounting plate, the lower part of the mounting plate is provided with a square steel bracket, and the hook is provided on the square steel bracket.

[0008] Furthermore, the rotating frame is rotatably connected to the clamp beam via a connecting shaft, and the rotating frame can rotate relative to the clamp beam around the connecting shaft; the end of the electro-hydraulic actuator is hinged to the rotating frame to drive the rotating frame to flip around the connecting shaft when the electro-hydraulic actuator extends or retracts.

[0009] Furthermore, the clamp beam is a longitudinally extending integral structure, with multiple first curved rods, second curved rods, intermediate beams, L-shaped grippers, support arms, and handles arranged below the clamp beam; the square steel support of the rotating frame is also a longitudinally extending integral structure, with multiple hooks arranged on the square steel support corresponding to the support arms.

[0010] Furthermore, the clamp beam includes two longitudinal beams arranged along the length direction, and a transversely connected middle beam structure is provided between the two longitudinal beams, the middle beam being fixedly connected to the longitudinal beams; the electro-hydraulic actuator is installed at the middle of the clamp beam and is connected to the clamp beam through the middle beam.

[0011] As a third preferred embodiment of this utility model, the pin at the upper end of the support arm is a horizontally arranged pin; the hook on the rotating frame is correspondingly arranged with the pin, and the hook can engage or disengage with the corresponding pin during the rotation of the rotating frame.

[0012] The beneficial effects of this utility model are: This invention achieves reliable switching between clamping and releasing states by setting a multi-hinged clamping mechanism below the clamping beam, consisting of a first curved rod, a second curved rod, a middle beam, an L-shaped gripper, and a swing rod, and cooperating with a rotating frame driven by an electro-hydraulic actuator and a selective engagement structure of the support arm pin-hook. When it is necessary to clamp the carbon block, the hook and pin are disengaged, causing the clamping mechanism to automatically rotate under gravity, and the gripper naturally closes to complete the clamping, without the need for additional clamping drive. The structure is simple and the operation is reliable. When it is necessary to release the carbon block, the entire clamp is lowered and the carbon block support foot contacts the carbon block to form a position reference, so that the hook and pin are accurately aligned. Then, the electro-hydraulic actuator drives the hook and pin to engage. During the overall lifting of the clamp, the restraining effect of the hook, pin, and support arm keeps the gripper open, thereby achieving stable release of the carbon block. This structure makes full use of gravity and mechanical limits to control the state of the clamp, avoiding the risk of wear and failure caused by complex transmission, and improving the safety, stability and adaptability of the clamp in handling and automated stacking operations of carbon blocks of different sizes. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention in the state of clamping the carbon block.

[0014] Figure 2 This is a structural schematic diagram of the present invention with the carbon block released.

[0015] Figure 3 This is a side view of the present invention.

[0016] In the attached diagram, 1 is the gripper, 2 is the L-shaped clamp, 3 is the lower support foot, 4 is the column, 5 is the upper support foot, 6 is the support arm, 7 is the second curved rod, 8 is the pin, 9 is the first curved rod, 10 is the hook, 11 is the square steel bracket, 12 is the mounting plate, 13 is the electro-hydraulic actuator, 14 is the middle beam, 15 is the clamp beam, 16 is the longitudinal beam, 17 is the intermediate beam, 18 is the carbon block, 19 is the carbon block support foot, 20 is the connecting shaft, and 21 is the rotating frame. Detailed Implementation

[0017] This utility model includes a clamping beam 15, and a clamping mechanism is provided below the clamping beam 15. The clamping mechanism includes a first curved rod 9 that is hinged inward to both sides of the clamping beam 15. A second curved rod 7 is hinged outward to the end of the first curved rod 9. The lower parts of the two second curved rods 7 are hinged to both ends of an intermediate beam 17. The lower end of the second curved rod 7 is hinged to the middle of an L-shaped gripper 2. A swing rod is provided between the end of the L-shaped gripper 2 and the intermediate beam 17. A gripper 1 is provided at the other end of the L-shaped gripper 2. A carbon block 18 support foot is also provided on the intermediate beam 17. Support arms 6 are provided at both ends of the intermediate beam 17. A pin 8 is provided at the upper end of the support arm 6. An electro-hydraulic push rod 13 is provided at the upper end of the clamping beam 15. The end of the electro-hydraulic push rod 13 is connected to one end of a rotating frame 21 on the clamping beam 15. A hook 10 that cooperates with the pin 8 is provided at the other end of the rotating frame 21.

[0018] When it is necessary to clamp the carbon block 18, the electro-hydraulic actuator 13 is controlled to rotate the rotating frame 21 and disengage the hook 10 from the pin 8 on the support arm 6. The clamping mechanism is released from its restraints. Under the action of gravity, the first crank 9, the second crank 7, and the L-shaped gripper 2 rotate in conjunction through the multi-hinged linkage structure, and the gripper 1 closes inward to complete the clamping. When it is necessary to release the carbon block 18, the entire clamp descends until the support foot of the carbon block 18 contacts the carbon block 18 and continues to descend, so that the hook 10 and the pin 8 are in corresponding positions. Then, the electro-hydraulic actuator 13 is controlled to engage the hook 10 with the pin 8. During the process of the entire clamp rising, the clamping mechanism remains open under the restraint of the hook 10, the pin 8, and the support arm 6, thereby realizing the release of the carbon block 18.

[0019] By selectively engaging or disengaging the hook 10 and the pin 8, the movement state of the clamping mechanism can be restricted or released; in the disengaged state, automatic clamping is achieved by utilizing the clamp's own weight and the relationship of multiple hinged links; in the engaged state, the clamp is kept open by mechanical limiting.

[0020] It can reliably clamp and release without the need for an additional clamping drive. Its simple structure and clear action reduce the risk of failure and improve the stability and safety of the fixture operation.

[0021] The carbon block 18 support foot includes a column 4 fixedly connected to the intermediate beam 17, and the lower end of the column 4 is a lower support foot 3.

[0022] During the descent of the clamp, the lower support foot 3 contacts the carbon block 18 before the gripper, providing support for the clamp to continue descending and for the hook 10 and pin 8 to be aligned.

[0023] The middle beam 17 is connected to the lower support foot 3 by the column 4, so that the middle beam 17 can obtain a stable support reference during the descent, thereby defining the positional relationship between the clamp and the carbon block 18.

[0024] This helps ensure accurate alignment between the hook 10 and the pin 8, avoids impact between the clamp and the carbon block 18, and improves the reliability of the release action.

[0025] The upper end of the column 4 is provided with an upper support foot 5, which corresponds to the lower surface of the clamp beam 15. The upper support foot 5 can support the clamp beam 15 as a whole, and is used for the overall inspection and maintenance of the equipment.

[0026] The electro-hydraulic actuator 13 is hinged to the clamp beam 15. The rotating frame 21 includes a connecting plate. The upper end of the connecting plate is hinged to the electro-hydraulic actuator 13. The lower end of the connecting plate is provided with a mounting plate 12. The lower part of the mounting plate 12 is provided with a square steel bracket 11. The hook 10 is provided on the square steel bracket 11.

[0027] When the electro-hydraulic actuator 13 extends or retracts, it drives the mounting plate 12 and the square steel bracket 11 to swing as a whole via the connecting plate, causing the hook 10 to move synchronously with the rotating frame 21. Utilizing a multi-stage hinge structure, the linear motion of the electro-hydraulic actuator 13 is converted into the rotational motion of the rotating frame 21, providing a stable mounting base for the hook 10. This ensures reliable operation of the hook 10 and a clear force path, thus improving the stability of the opening and closing control.

[0028] The rotating frame 21 is rotatably connected to the clamp beam 15 via the connecting shaft 20, and the rotating frame 21 can rotate relative to the clamp beam 15 around the connecting shaft 20; the end of the electro-hydraulic push rod 13 is hinged to the rotating frame 21 so as to drive the rotating frame 21 to flip around the connecting shaft 20 when the electro-hydraulic push rod 13 extends or retracts.

[0029] When the electro-hydraulic actuator 13 is activated, the rotating frame 21 rotates around the connecting shaft 20, enabling the hook 10 to engage or disengage. A stable rotating pair is formed through the connecting shaft 20, making the rotational movement of the rotating frame 21 controlled and repeatable. This ensures the accuracy of the engagement between the hook 10 and the pin 8, improving the reliability of the clamp's opening and closing process.

[0030] The clamp beam 15 is a longitudinally extending integral structure. Multiple first curved rods 9, second curved rods 7, intermediate beams 17, L-shaped grippers 2, support arms 6 and handles 1 are arranged below the clamp beam 15. The square steel support 11 of the rotating frame 21 is also a longitudinally extending integral structure. Multiple hooks 10 are arranged on the square steel support 11 corresponding to the support arms 6.

[0031] Multiple clamping mechanisms simultaneously clamp or release charcoal blocks 18 under the same clamping beam 15. Through a longitudinally extending integral structure, hooks 10 and support arms 6 form a one-to-one correspondence, achieving unified control and multi-point synchronous action. This is suitable for simultaneously clamping or stacking multiple charcoal blocks 18, improving operational efficiency.

[0032] The clamp beam 15 includes two longitudinal beams 16 arranged along the length direction, and a transversely connected middle beam 14 structure is provided between the two longitudinal beams 16. The middle beam 14 is fixedly connected to the longitudinal beams 16. The electro-hydraulic actuator 13 is installed in the middle of the clamp beam 15 and is connected to the clamp beam 15 through the middle beam 14.

[0033] The electro-hydraulic actuator 13 transmits driving force to the clamping beam 15 via the central beam 14. The frame structure formed by the longitudinal beam 16 and the transverse central beam 14 enhances the overall load-bearing capacity of the clamping beam 15. This strengthens the rigidity and stability of the clamping beam 15, making it suitable for long-term continuous operation.

[0034] The pin 8 at the upper end of the support arm 6 is arranged horizontally; the hook 10 on the rotating frame 21 is correspondingly provided with the pin 8, and the hook 10 can be engaged or disengaged from the corresponding pin 8 during the rotation of the rotating frame 21.

[0035] During the rotation of the rotating frame 21, the hook 10 and the transverse pin 8 engage or disengage. The mechanical cooperation between the transverse pin 8 and the hook 10 maintains or releases the clamp's open state. The structure is simple and reliable, ensuring stability in the switching between the clamp's open and clamped states.

[0036] It is understood that the above specific description of this utility model is only used to illustrate this utility model and is not limited to the technical solutions described in the embodiments of this utility model. Those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model to achieve the same technical effect; as long as the use needs are met, they are all within the protection scope of this utility model.

Claims

1. An opening and closing mechanism for a charcoal block stacking crane clamp, comprising a clamp beam (15), a clamping mechanism disposed below the clamp beam (15), the clamping mechanism comprising a first curved rod (9) hinged inwardly to both sides of the clamp beam (15), a second curved rod (7) hinged outwardly to the end of the first curved rod (9), the lower parts of the two second curved rods (7) hinged to both ends of an intermediate beam (17), the lower end of the second curved rod (7) hinged to the middle of an L-shaped gripper (2), a swing rod disposed between the end of the L-shaped gripper (2) and the intermediate beam (17), a gripper (1) disposed at the other end of the L-shaped gripper (2), and a charcoal block (18) support foot disposed on the intermediate beam (17), characterized in that: Both ends of the intermediate beam (17) are provided with support arms (6), and the upper end of the support arm (6) is provided with a pin (8); the upper end of the clamp beam (15) is provided with an electro-hydraulic push rod (13), the end of the electro-hydraulic push rod (13) is connected to one end of the rotating frame (21) on the clamp beam (15), and the other end of the rotating frame (21) is provided with a hook (10) that cooperates with the pin (8).

2. The opening and closing mechanism of the clamping device of a charcoal block stacking crane according to claim 1, characterized in that: The carbon block (18) support foot includes a column (4) fixedly connected to the intermediate beam (17), and the lower end of the column (4) is a lower support foot (3).

3. The opening and closing mechanism of the clamp of a charcoal block stacking crane according to claim 2, characterized in that: The upper end of the column (4) is provided with an upper support foot (5), which corresponds to the lower surface of the clamp beam (15).

4. The opening and closing mechanism of the clamp of a charcoal block stacking crane according to claim 1, characterized in that: The electro-hydraulic actuator (13) is hinged to the clamp beam (15). The rotating frame (21) includes a connecting plate. The upper end of the connecting plate is hinged to the electro-hydraulic actuator (13). The lower end of the connecting plate is provided with an installation plate (12). The lower part of the installation plate (12) is provided with a square steel bracket (11). The hook (10) is provided on the square steel bracket (11).

5. The opening and closing mechanism of the clamp of a charcoal block stacking crane according to claim 4, characterized in that: The rotating frame (21) is rotatably connected to the clamp beam (15) via the connecting shaft (20), and the rotating frame (21) can rotate relative to the clamp beam (15) around the connecting shaft (20); the end of the electro-hydraulic push rod (13) is hinged to the rotating frame (21) so as to drive the rotating frame (21) to flip around the connecting shaft (20) when the electro-hydraulic push rod (13) extends or retracts.

6. The opening and closing mechanism of the clamp of a charcoal block stacking crane according to claim 5, characterized in that: The clamp beam (15) is a longitudinally extending integral structure. Multiple first curved rods (9), second curved rods (7), intermediate beams (17), L-shaped grippers (2), support arms (6) and handles (1) are arranged below the clamp beam (15). The square steel support (11) of the rotating frame (21) is also a longitudinally extending integral structure. Multiple hooks (10) are arranged on the square steel support (11) corresponding to the support arms (6).

7. The opening and closing mechanism of the clamp of a charcoal block stacking crane according to claim 6, characterized in that: The clamp beam (15) includes two longitudinal beams (16) arranged along the length direction, and a transversely connected middle beam (14) structure is provided between the two longitudinal beams (16). The middle beam (14) is fixedly connected to the longitudinal beams (16). The electro-hydraulic push rod (13) is installed in the middle of the clamp beam (15) and is connected to the clamp beam (15) through the middle beam (14).

8. The opening and closing mechanism of the clamp of a charcoal block stacking crane according to claim 1, characterized in that: The pin (8) provided at the upper end of the support arm (6) is a horizontally arranged pin (8); the hook (10) on the rotating frame (21) is provided correspondingly to the pin (8), and the hook (10) can be engaged or disengaged from the corresponding pin (8) during the rotation of the rotating frame (21).

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