Crane electromagnetic chuck cable collecting device

Abstract

The invention relates to a crane electromagnetic chuck cable collecting device, and belongs to the technical field of cranes. Comprising a lifting hook set, a supporting base and a balancing weight, the supporting base and the balancing weight are arranged on the two sides of the lifting hook set respectively, a cable frame used for storing cables is arranged on the supporting base, and the cables enter the cable frame sequentially through a lower guiding unit and an upper guiding unit; a magnet disc is hung at the bottom of the lifting hook set, a cable connector is installed at the bottom of the cable frame, and a cable in the cable frame is led out to the cable connector and then connected to the magnet disc. The cable frame and the magnet disc are respectively provided with a cable fixing unit used for fixing a cable. A cable drum is omitted, the fault rate of a power supply system of the traveling crane magnet disc is reduced, the cable is fixed through the cable frame and the cable fixing unit in the magnet disc, and the service life of the cable is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of cranes and relates to a crane electromagnetic suction cup cable collecting device. Background Art

[0002] As the core equipment for material handling in steel enterprises, electromagnetic chuck cranes use the magnetic force of electromagnetic chucks to absorb steel or scrap steel for efficient lifting. The electromagnetic chucks need to be powered continuously to maintain operation, and the power supply cable is synchronized with the lifting and retraction through the cable reel installed on the traveling trolley. Traditional cable reels use built-in spiral springs to drive the retracted and released cables, and rely on slip rings and carbon brush assemblies to achieve dynamic conductivity. The cable under the electromagnetic chuck is directly suspended in the hook area. However, this power supply system frequently fails under the high vibration, dust and strong impact conditions of steel enterprises, which are manifested in three aspects: cable reel spring breakage, abnormal wear of slip rings and frequent cable disconnection, which seriously threaten equipment safety and operation continuity.

[0003] First, the cable drum spring is prone to fatigue fracture due to long-term exposure to alternating loads (frequent start-stop, cable deadweight and inertial impact). After the spring fails, the drum loses its automatic retraction function, and the cable sags and rubs against the crane wire rope, hook or steel structure, causing sheath wear and even internal conductor breakage, leading to the risk of electromagnetic suction cup power failure and material falling. Although the industry has tried to use high-carbon steel springs to enhance fatigue resistance, the stress concentration effect under alternating loads still makes the probability of breakage high, and spring replacement requires high-altitude disassembly of the drum, which takes several hours to repair, seriously affecting the production rhythm. Secondly, the problem of abnormal wear of slip rings and carbon brush assemblies is prominent. As a consumable part, the life of carbon brushes drops sharply from the theoretical 6 months to 1-3 months in the dusty environment of steel mills. Metal debris intrudes into the gap of the slip ring to aggravate wear, and poor contact after wear will cause local high-temperature arcs, leading to slip ring ablation and even circuit meltdown. Existing improvement solutions such as adding dust covers can reduce dust intrusion, but they aggravate temperature rise due to hindering heat dissipation, which further shortens the life of the slip ring. In addition, the wear status of the carbon brushes depends on regular manual inspections, but the closed structure of the reel makes visual monitoring difficult and sudden failures difficult to prevent. Finally, the cable under the electromagnetic suction cup is exposed to the movement path of materials such as scrap steel and burred steel plates, and is frequently hooked and pulled off by sharp edges. A single break requires shutdown and replacement, with an average processing time of more than 4 hours, and the average annual maintenance cost accounts for more than 30% of the equipment purchase cost. The industry has tried to install metal hoses or rubber sheaths to protect the cable, but the weight of the sheath increases the cable load and cannot withstand the strong impact of scrap steel. Instead, it accelerates the aging of the outer skin and the degradation of insulation performance.

[0004] The above problems expose serious defects of traditional power supply systems in terms of reliability, maintenance costs and adaptability to working conditions. As core components, springs and slip rings have short lifespans and sudden failures. The cable protection design has not been optimized for the special environment of steel mills, resulting in insufficient system robustness. Although existing improvement schemes have partially optimized materials or structures, they have not broken through the traditional architecture of "spring drive + slip ring conduction + suspension cable" and cannot fundamentally solve the synergistic problems of high-load alternating stress, dynamic conductive stability and impact protection. As the steel industry's requirements for lifting efficiency and safety continue to increase, an innovative solution is urgently needed to solve the above technical problems. Summary of the invention

[0005] In view of this, the object of the present invention is to provide a crane electromagnetic chuck cable collection device, which reduces the failure rate of the electromagnetic chuck cable, prolongs the service life of the cable, and saves spare parts costs.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A crane electromagnetic suction cup cable collection device comprises a hook group and a support seat and a counterweight block respectively arranged on both sides of the hook group, wherein the support seat is provided with a cable frame for storing cables; a suction cup is provided at the bottom of the hook group, and a cable connector is installed at the bottom of the cable frame, and the cables in the cable frame are led out to the cable connector and then connected to the suction cup.

[0008] Optionally, the hook group includes a hook wall panel, and a hook arranged at the bottom of the hook wall panel; the support seat and the counterweight block are respectively arranged on both sides of the hook wall panel, and the magnetic plate is hung on the hook.

[0009] Optionally, the cable enters into the cable frame through a lower guide unit and an upper guide unit in sequence.

[0010] Optionally, the cable frame is conical in shape, and the cable entrance is located at the top tip.

[0011] Optionally, the upper guide unit is located at the cable entrance, and the lower guide unit is connected to the cable outside the cable frame.

[0012] Optionally, a reinforcing rib plate is further provided between the counterweight block and the hook wall panel.

[0013] Optionally, the cable frame and the magnetic plate are both provided with the cable fixing unit for fixing the cable.

[0014] Optionally, the cable fixing unit is a cable fixing rod.

[0015] The beneficial effects of the present invention are:

[0016] The present invention achieves the elimination of the cable reel and the use of a cable frame to store the cable. The cable retraction and release system formed by the upper guide unit and the lower guide unit has the characteristics of staticization, optimized protection structure and simplified power supply path, which solves the core problems of high failure rate of the cable reel and easy damage of the cable, and ultimately achieves the goal of reducing the failure rate, extending the life of the cable and saving maintenance costs.

[0017] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

[0019] Figure 1 It is a schematic diagram of the overall device of the present invention.

[0020] Reference numerals:

[0021] 1. Magnetic plate, 2. Hook group, 3. Counterweight block, 4. Reinforcement rib plate, 5. Cable connector, 6. Cable fixing device, 7. Support seat, 8. Cable frame, 9. Lower guide unit, 10. Cable, 11. Upper guide unit, 12. Cable fixing rod. DETAILED DESCRIPTION

[0022] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0023] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0024] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0025] See also Figure 1 , is a crane electromagnetic suction cup cable collection device, including a hook group 2, the hook group 2 includes a hook wall plate, and a hook arranged at the bottom of the hook wall plate. Support seats 7 and counterweights 3 are respectively arranged on both sides of the hook wall plate to ensure that the hook maintains balance when not under force; a cable frame 8 for storing cables 10 is arranged on the support seat 7, and the electromagnetic suction cup power supply cable 10 enters the cable frame 8 through the lower guide unit 9 and the upper guide unit 11 in turn; a magnetic suction cup 1 is hung at the bottom of the hook, and a cable connector 5 is installed at the bottom of the cable frame 8. The cable 10 in the cable frame 8 is led out to the cable connector 5 and then connected to the magnetic suction cup 1.

[0026] The cable frame 8 is conical, and the entrance of the cable 10 is located at the top tip. The upper guide unit 11 is located at the entrance of the cable 10, and the lower guide unit 9 is connected to the cable 10 outside the cable frame 8. When the crane is lifted or lowered, the electromagnetic suction cup cable 10 is coiled into the cable frame 8 by its own weight.

[0027] A reinforcing rib plate 4 is also provided between the counterweight block 3 and the hook wall plate.

[0028] The cable frame 8 and the iron-absorbing plate 1 are both provided with a cable fixing unit for fixing the cable 10 to prevent the cable 10 from being caught by foreign objects. The cable fixing unit is preferably a cable fixing rod 12.

[0029] The present invention eliminates the cable drum, uses the cable frame 8 to store the cable 10, and forms a cable retracting system in combination with the upper guide unit 11 and the lower guide unit 9, thereby eliminating the cable drum-related faults, reducing the failure rate of the power supply system of the driving suction cup 1, reducing the downtime maintenance caused by spring breakage and slip ring wear, and improving the system reliability. The top tip entrance of the conical cable frame 8 cooperates with the upper guide unit 11 and the lower guide unit 9 to guide the cable 10 to coil in an orderly manner, and a cable 10 fixing unit is set to fix the cable 10 in the cable frame 8 and the suction cup 1, so that the probability of cable 10 wear and hanging is significantly reduced, the service life is extended, and the maintenance cost is reduced. Counterweight blocks 3 and support seats 7 are set on both sides of the hook group 2, and reinforcing rib plates 4 are added between the counterweight blocks 3 and the hook wallboard; the technical problem that the hook group 2 is easily unbalanced due to the swing of the electromagnetic suction cup cable 10, which aggravates the stress of the cable 10, the counterweight blocks 3 and the reinforcing rib plates 4 enhance the structural stability, reduce the vibration offset during operation, make the cable 10 path more stable, and reduce the additional load caused by structural shaking. The bottom of the cable frame 8 is directly connected to the cable connector 5, and the cable 10 is connected to the suction cup 1 through the cable connector 5. The problem of relying on the dynamic conduction of the reel and requiring complex slip ring connection is avoided. The static cable connector 5 is used to reduce the intermediate conductive links, simplify the power supply path, reduce the contact points, and reduce the risk of electrical failure.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A crane electromagnetic chuck cable collection device, characterized in that: The invention comprises a hook group (2) and a support seat (7) and a counterweight (3) respectively arranged on both sides of the hook group (2); the support seat (7) is provided with a cable frame (8) for storing a cable (10); a magnetic plate (1) is provided at the bottom of the hook group (2); a cable connector (5) is installed at the bottom of the cable frame (8); the cable (10) in the cable frame (8) is led out to the cable connector (5) and then connected to the magnetic plate (1).

2. The crane electromagnetic chuck cable collection device according to claim 1 is characterized in that: The hook group (2) comprises a hook wall plate and a hook arranged at the bottom of the hook wall plate; the support seat (7) and the counterweight block (3) are respectively arranged on both sides of the hook wall plate, and the magnetic plate (1) is hung on the hook.

3. The crane electromagnetic chuck cable collection device according to claim 1, characterized in that: The cable (10) passes through the lower guide unit (9) and the upper guide unit (11) in sequence and enters the cable frame (8).

4. The crane electromagnetic chuck cable collection device according to claim 3 is characterized in that: The cable frame (8) is conical in shape, and the entrance of the cable (10) is located at the top tip.

5. The crane electromagnetic chuck cable collection device according to claim 4, characterized in that: The upper guide unit (11) is located at the entrance of the cable (10), and the lower guide unit (9) is connected to the cable (10) outside the cable frame (8).

6. The crane electromagnetic chuck cable collection device according to claim 2, characterized in that: A reinforcing rib plate (4) is also provided between the counterweight block (3) and the hook wall plate.

7. The crane electromagnetic chuck cable collection device according to claim 1, characterized in that: The cable frame (8) and the magnetic plate (1) are both provided with the cable fixing unit for fixing the cable (10).

8. The crane electromagnetic chuck cable collection device according to claim 1, characterized in that: The cable fixing unit is a cable fixing rod (12).

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