A device for detecting and alarming the fixed shaft pin of a driving-out aluminum hook

Abstract

The utility model discloses a kind of crane out aluminum hook fixed axle pin detection alarm device, belong to handover shaft protection technical field, including control cabinet and early warning component, control cabinet is installed in the fixed axle pin of out aluminum hook directly above, control cabinet and fixed axle pin are installed with early warning component, early warning component includes alarm, controller and travel switch, alarm is installed in the outer surface of control cabinet, the inside of control cabinet is installed with controller, fixed axle pin and out aluminum hook are formed with pin hole between, the inner wall of pin hole is installed with travel switch.The utility model has the beneficial effect that: device is installed in the fixed axle pin above out aluminum hook of crane, the connecting position of fixed axle pin can be detected by travel switch, in the process that fixed axle pin is taken out, trigger block set on fixed axle pin will pass through the induction area of travel switch to send signal, and alarm can be linked control to send alarm, remind staff to handle in time, improve the security of out aluminum hook of crane use.

Description

Technical Field

[0001] This utility model relates to the field of joint shaft protection technology, specifically to a detection and alarm device for the aluminum hook fixing pin of a crane. Background Technology

[0002] Electrolytic aluminum is aluminum obtained through electrolysis. Modern electrolytic aluminum production uses the cryolite-alumina molten salt electrolysis method, where molten cryolite is the solvent, alumina is the solute, carbonaceous material is the anode, and molten aluminum is the cathode. After a strong direct current is applied, an electrochemical reaction, namely electrolysis, takes place at the two electrodes in the electrolytic cell. During the daily operation of the crane in the aluminum electrolysis workshop, an aluminum hook is used to assist in the operation.

[0003] In existing technologies, after the fixed shaft pin of the wedge block of the aluminum discharge hook of the aluminum electrolysis workshop comes loose, there is a risk that the wedge block may come loose during load hoisting, which could easily lead to the load falling. Furthermore, the shaft pin is relatively hidden, making daily inspection inconvenient and affecting crane safety and the smooth operation of the work. Meanwhile, invention patent CN116891185A discloses an anti-detachment device for the aluminum discharge hook, which is installed on the aluminum discharge hook and includes an anti-detachment hook baffle rotatably mounted on the aluminum discharge hook. One side of the anti-detachment hook baffle contacts the aluminum discharge hook and forms a closed loop with it. The aluminum discharge hook is equipped with a reset device for resetting the anti-detachment hook baffle after it rotates. While this device prevents the fixed shaft from detaching through an anti-detachment structure, it is not convenient for monitoring the stroke of the fixed shaft and cannot provide early warning. Its practicality and durability need improvement. Utility Model Content

[0004] To overcome the problems in existing technologies where the wedge-shaped fixing pin of the aluminum hook in an aluminum electrolysis workshop detaches during load hoisting, potentially causing the load to fall, and where the pin is concealed, making daily inspection inconvenient and affecting crane safety and smooth operation, this utility model provides a detection and alarm device for the fixing pin of the aluminum hook. The device includes a control box and an early warning component. The control box is installed directly above the fixing pin of the aluminum hook. An early warning component is installed on both the control box and the fixing pin. The early warning component includes an alarm, a controller, and a limit switch. The alarm is installed on the outer surface of the control box, and the controller is installed inside the control box. A pin hole is formed between the fixing pin and the aluminum hook. A limit switch is installed on the inner wall of the pin hole. A trigger block is installed on the surface of the fixing pin, and the trigger block is matched with the limit switch.

[0005] The device is installed above the fixing pin of the crane's aluminum hook. The connection position of the fixing pin can be detected by a limit switch. During the process of the fixing pin coming off, the trigger block on the fixing pin will send a signal through the sensing area of ​​the limit switch, which can be linked to control the alarm to sound an alarm, reminding the staff to deal with it in time. This makes it convenient for the staff to inspect, maintain and replace the fixing pin at the corresponding location, avoid the problem of load falling, and further improve the safety of using the crane's aluminum hook.

[0006] Preferably, the input end of the limit switch is connected to a sensing ring that matches the trigger block, and the sensing ring is disposed on the inner wall of the pin hole and is inserted and connected to the fixed shaft pin.

[0007] Preferably, the controller is a PLC controller.

[0008] Preferably, the limit switch is electrically connected to the alarm via a controller.

[0009] Preferably, a positioning indicator light is installed in the middle of the control box, and the positioning indicator light is electrically connected to the alarm.

[0010] Preferably, the inner wall of the control box is equipped with a reinforcing plate, and the outer surface of the control box is equipped with an insulating plate.

[0011] The strength of the control box can be increased by installing a reinforcing plate inside, making it less prone to damage. The insulation performance can be improved by installing an insulating plate on the outer surface of the control box, preventing leakage.

[0012] Preferably, a signal transmitter is installed inside the control box, and the signal transmitter is connected to the external vehicle control host.

[0013] By installing a control box above the aluminum hook, warning and control components can be installed. A signal generator inside the control box can send a signal to the external control host when the limit switch detects that the fixed shaft pin is disengaging, thereby controlling the crane to stop running and preventing more accidents.

[0014] Preferably, the control box has a heat dissipation grid on the front.

[0015] Preferably, the outer surface of the control box is provided with a corrosion-resistant coating.

[0016] By applying a corrosion-resistant coating, the overall corrosion resistance of the device can be improved, thereby extending its service life.

[0017] Beneficial effects:

[0018] The beneficial effects of adopting the technical solution of this utility model are as follows:

[0019] (1) The device is installed above the fixed pin of the crane's aluminum hook. The connection position of the fixed pin can be detected by the limit switch. During the process of the fixed pin coming out, the trigger block set on the fixed pin will send a signal through the sensing area of ​​the limit switch, and can be linked to control the alarm to sound an alarm, reminding the staff to deal with it in time. This makes it convenient for the staff to inspect, maintain and replace the fixed pin at the corresponding location, avoid the problem of load falling, and further improve the safety of the crane's aluminum hook.

[0020] (2) By setting a control box above the aluminum hook, warning elements and control elements can be installed. By setting a signal generator inside the control box, when the limit switch detects that the fixed shaft pin is coming off, a signal can be sent to the external control host, thereby controlling the crane to stop running and avoiding more accidents.

[0021] (3) The strength of the control box can be improved by the reinforcing plate installed inside the control box, making it less prone to damage. The insulation performance can be improved by the insulating plate set on the outer surface of the control box, thus avoiding leakage. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the crane aluminum hook fixing pin detection and alarm device of this utility model;

[0024] Figure 2 This is a schematic diagram of the internal connection structure of the crane aluminum hook fixing pin detection alarm device of this utility model;

[0025] Figure 3 This is a schematic diagram of the control box of the crane aluminum hook fixing pin detection alarm device of this utility model.

[0026] In the diagram: 1. Aluminum hook; 2. Fixing pin; 3. Control box; 4. Alarm; 5. Positioning indicator light; 6. Heat dissipation grid; 7. Controller; 8. Signal transmitter; 9. Trigger block; 10. Limit switch; 11. Reinforcing plate; 12. Insulating plate. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0028] This embodiment installs the device above the fixing pin of the crane's aluminum hook. A limit switch detects the connection position of the fixing pin. During the pin's disengagement, a trigger block on the pin sends a signal through the limit switch's sensing area, triggering an alarm to alert personnel. This facilitates timely maintenance and replacement of the fixing pin, preventing load falls and further improving the safety of the crane's aluminum hook operation. The specific implementation is as follows:

[0029] like Figures 1 to 3 As shown, a detection and alarm device for the fixed axle pin of a crane aluminum hook includes a control box 3 and an early warning component. The control box 3 is installed directly above the fixed axle pin 2 of the aluminum hook 1. The early warning component is installed on the control box 3 and the fixed axle pin 2. The early warning component includes an alarm 4, a controller 7 and a limit switch 10. The alarm 4 is installed on the outer surface of the control box 3. The controller 7 is installed inside the control box 3. A pin hole is formed between the fixed axle pin 2 and the aluminum hook 1. The limit switch 10 is installed on the inner wall of the pin hole. A trigger block 9 is installed on the surface of the fixed axle pin 2. The trigger block 9 is matched with the limit switch 10. The device is installed above the fixed pin 2 of the crane's aluminum hook 1. The connection position of the fixed pin 2 can be detected by the limit switch 10. During the process of the fixed pin 2 being disengaged, the trigger block 9 set on the fixed pin 2 will send a signal through the sensing area of ​​the limit switch 10, which can be linked to control the alarm 4 to sound an alarm, reminding the staff to deal with it in time. This makes it convenient for the staff to inspect, maintain and replace the fixed pin 2 at the corresponding location, avoid the problem of load falling, and further improve the safety of the crane's aluminum hook 1.

[0030] The input terminal of the limit switch 10 is connected to a sensing ring that matches the trigger block 9. The sensing ring is located on the inner wall of the pin hole and is connected to a fixed pin 2. The sensing ring serves as the sensing area of ​​the limit switch 10 and can trigger the limit switch 10 when the trigger block 9 passes through.

[0031] Controller 7 is a PLC controller. It can achieve precise control of the entire device.

[0032] Limit switch 10 is electrically connected to alarm 4 via controller 7. When limit switch 10 detects a release signal, it can send a command to alarm 4 under the action of controller 7, thereby triggering an alarm to provide early warning.

[0033] A positioning indicator light 5 is installed in the middle of the control box 3, and the positioning indicator light 5 is electrically connected to the alarm 4. The positioning indicator light 5 can flash synchronously when the alarm 4 sounds, thereby making it easier for staff to determine the alarm location and improving maintenance efficiency.

[0034] The inner wall of the control box 3 is equipped with a reinforcing plate 11, and the outer surface of the control box 3 is equipped with an insulating plate 12. The reinforcing plate 11 installed inside the control box 3 can improve the strength of the control box 3 and make it less prone to damage. The insulating plate 12 installed on the outer surface of the control box 3 can improve the insulation performance and prevent leakage. The insulating plate 12 is made of epoxy resin insulating material.

[0035] The control box 3 houses a signal transmitter 8, which is connected to the external crane control host. By placing the control box 3 above the aluminum hook 1, warning and control elements can be installed. The signal transmitter 8, located inside the control box 3, can send a signal to the external control host when the limit switch 10 detects that the fixed shaft pin 2 is disengaging, thereby controlling the crane to stop operation and preventing further accidents.

[0036] The control box 3 has a heat dissipation grille 6 on its front. The heat dissipation grille 6 can dissipate heat from the control box and prevent overheating damage.

[0037] The outer surface of control box 3 is coated with a corrosion-resistant coating. This coating improves the overall corrosion resistance of the device, thereby extending its service life.

[0038] Working Principle: The device is installed above the fixed pin of the crane's aluminum hook. A limit switch detects the connection position of the fixed pin. During the pin's disengagement, a trigger block on the pin sends a signal through the limit switch's sensing area, triggering an alarm to alert personnel. This facilitates timely maintenance and replacement of the fixed pin, preventing load falls and improving the safety of the crane's aluminum hook operation. A control box above the hook houses warning and control components. An internal signal generator sends a signal to the external control unit when the limit switch detects the pin disengaging, stopping the crane and preventing further accidents. A reinforcing plate inside the control box increases its strength, making it less prone to damage. An insulating plate on the outer surface of the control box improves insulation and prevents leakage.

[0039] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A detection and alarm device for the fixing pin of the aluminum hook of a crane, characterized in that, The device includes a control box (3) and an early warning component. The control box (3) is installed directly above the fixed shaft pin (2) of the aluminum hook (1). An early warning component is installed on the control box (3) and the fixed shaft pin (2). The early warning component includes an alarm (4), a controller (7), and a limit switch (10). The alarm (4) is installed on the outer surface of the control box (3). The controller (7) is installed inside the control box (3). A pin hole is formed between the fixed shaft pin (2) and the aluminum hook (1). A limit switch (10) is installed on the inner wall of the pin hole. A trigger block (9) is installed on the surface of the fixed shaft pin (2). The trigger block (9) is matched with the limit switch (10).

2. The crane aluminum hook fixing pin detection and alarm device according to claim 1, characterized in that, The input end of the limit switch (10) is connected to a sensing ring that matches the trigger block (9). The sensing ring is located on the inner wall of the pin hole and is connected to the fixed shaft pin (2).

3. The crane aluminum hook fixing pin detection and alarm device according to claim 1, characterized in that, The controller (7) is a PLC controller.

4. The crane aluminum hook fixing pin detection and alarm device according to claim 1, characterized in that, The limit switch (10) is electrically connected to the alarm (4) via the controller (7).

5. The crane aluminum hook fixing pin detection and alarm device according to claim 1, characterized in that, A positioning indicator light (5) is installed in the middle of the control box (3), and the positioning indicator light (5) is electrically connected to the alarm (4).

6. The crane aluminum hook fixing pin detection alarm device according to claim 1, characterized in that, The inner wall of the control box (3) is fitted with a reinforcing plate (11), and the outer surface of the control box (3) is fitted with an insulating plate (12).

7. The crane aluminum hook fixing pin detection alarm device according to claim 1, characterized in that, The control box (3) is equipped with a signal transmitter (8), which is connected to the external vehicle control host.

8. The crane aluminum hook fixing pin detection alarm device according to claim 1, characterized in that, The control box (3) has a heat dissipation grid (6) on its front.

9. The crane aluminum hook fixing pin detection alarm device according to claim 1, characterized in that, The outer surface of the control box (3) is provided with a corrosion-resistant coating.

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