Crown block slide wire current collector deviation alarm device

Abstract

The utility model relates to a deviation alarm device for a slide wire current collector of a crown block, which belongs to the technical field of electrolytic aluminum production auxiliary equipment and comprises a slide wire and a current collector, the slide wire is slidably connected with a power receiving seat for introducing current to the current collector, and the slide wire is clamped into a slide groove of the power receiving seat; a press-in switch and a running-in plate are arranged on the inner wall of the slide groove of the power receiving seat, and the running-in plate is arranged between the press-in switch and the slide wire; the press-fit switch is protected and shielded by the running-in plate; an alarm electrically connected with the press-fit switch is arranged on the outer side face of the power receiving base. The running-in plate is matched with the pressing switch, the abrasion condition of the current collector and the slide wire is fed back in time, meanwhile, the alarm sends out an alarm signal, the abrasion condition can be found out by a worker in time, potential safety hazards caused by further abrasion of the slide wire and the current collector are avoided, and the running safety of the crown block is improved.

Description

Technical Field

[0001] This utility model relates to a deviation alarm device for the current collector of an overhead crane sliding line, belonging to the technical field of auxiliary equipment for electrolytic aluminum production. Background Technology

[0002] Bridge cranes, also known as overhead cranes, are typically powered by a sliding line and a current collector. The current collector slides within the sliding line using a support and springs. The sliding line is fixed and has high requirements for verticality and parallelism. Usually, the current collector consists of a support and a spring, and its tilt angle can be adjusted.

[0003] After prolonged use, the overhead crane's sliding rails and current collectors inevitably experience wear. This wear increases the gap between the sliding rails and current collectors, causing the current collector contacts to deflect within the sliding rails. This deflection further exacerbates the wear between the sliding rails and current collectors. As the sliding rails and current collectors continue to wear, the current collector contacts may detach from the sliding rails, and the sliding rail's conductor bars may fall off, causing grounding faults and other safety hazards that could easily lead to accidents. Because the location where the current collector and sliding rails are installed is relatively concealed, it is difficult to detect wear in a timely manner through manual visual inspection alone. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a crane sliding line current collector deviation alarm device, which provides early warning before the sliding line and current collector are severely worn, so as to avoid safety hazards caused by the wear of the sliding line and current collector.

[0005] The present invention relates to a crane sliding line current collector deviation alarm device, comprising: a sliding line and a current collector, wherein a current receiving base for introducing current into the current collector is slidably connected to the sliding line, and the sliding line is inserted into a groove of the current receiving base;

[0006] The inner wall of the power receiving base slide is equipped with a pressure switch and a break-in plate, with the break-in plate located between the pressure switch and the slide wire; the pressure switch is protected and shielded by the break-in plate.

[0007] An alarm is provided on the outer side of the power receiving base, which is electrically connected to the pressure switch.

[0008] Furthermore, the power receiver includes a housing, inside which a conductive block is provided. A slide wire is slidably connected to the housing, and the conductive block is movably embedded in the slide wire. The current collector introduces current through the conductive block.

[0009] Furthermore, the break-in plate includes: a break-in plate connected to the inner wall of the housing, with a wear plate attached to the side of the break-in plate near the slide line.

[0010] Furthermore, the contact plate is provided with stress grooves for bending itself.

[0011] Furthermore, the press-fit switch includes: a base housing, an elastic block inside the base housing, a contact on the elastic block, and an elastic contact piece covering the opening of the base housing;

[0012] The elastic contact piece and the contact head are connected in series in the circuit as the contacts of the alarm.

[0013] Furthermore, the alarm type is an audible and visual alarm.

[0014] The advantages of this utility model compared with the prior art are:

[0015] This invention uses a wear plate combined with a pressure switch to provide timely feedback on the wear status of the current collector and the sliding line. At the same time, an alarm signal is emitted, making it easy for manual detection of wear and avoiding safety hazards caused by further wear of the sliding line and current collector, thus improving the safety of crane operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of a crane sliding line current collector deviation alarm device according to the present invention;

[0017] Figure 2 This is a first cross-sectional view of the current collector deviation alarm device for overhead crane sliding line according to this utility model;

[0018] Figure 3 This is a second cross-sectional view of the current collector deviation alarm device for overhead crane sliding line according to this utility model;

[0019] Figure 4 This is a schematic diagram of the working principle of a deviation alarm device for a crane sliding line current collector.

[0020] In the picture:

[0021] 1. Power receiving base; 101. Housing; 102. Conductive block;

[0022] 2. Alarm device;

[0023] 3. Break-in plate; 301. Contact break plate; 302. Wear plate; 303. Stress groove;

[0024] 4. Press-fit switch; 401. Spring contact piece; 402. Contact; 403. Spring block; 404. Base shell;

[0025] 5. Slide rail;

[0026] 6. Current collector. Detailed Implementation

[0027] like Figure 1-4As shown, this embodiment is achieved through the following technical solution: it includes a sliding wire 5 and a current collector 6. A current receiving base 1 for introducing current to the current collector 6 is slidably connected on the sliding wire 5, and the sliding wire 5 is inserted into the sliding groove of the current receiving base 1.

[0028] The inner wall of the slide groove of the power receiving base 1 is provided with a pressure switch 4 and a running plate 3, and the running plate 3 is located between the pressure switch 4 and the sliding line 5; the pressure switch 4 is protected and shielded by the running plate 3.

[0029] An alarm 2, which is electrically connected to the pressure switch 4, is provided on the outer side of the power receiving base 1.

[0030] Specifically, the power receiving base 1 includes a housing 101, a conductive block 102 is provided inside the housing 101, a slide wire 5 is slidably connected to the housing 101, and the conductive block 102 is movably embedded in the slide wire 5; the current collector 6 introduces current through the conductive block 102.

[0031] Specifically, the break-in plate 3 includes: a break-in plate 301 connected to the inner wall of the housing 101, and a wear plate 302 attached to the side of the break-in plate 301 near the slide rail 5. The break-in plate 301 is provided with stress grooves 303 for bending itself. In this embodiment, the break-in plate 301 is made of brittle plastic, and the wear plate 302 is made of rubber material.

[0032] After the current collector 6 deviates, the wear plate 302 on the side of the current collector 6 that deviates from the direction comes into contact with the slide rail 5. The wear plate 302 is gradually worn away. At this time, the current collector 6 continues to press the low-strength broken contact plate 301. Under the action of the stress groove 303, the broken contact plate 301 is more likely to bend and deform. The bent and deformed broken contact plate 301 further presses onto the elastic contact piece 401. The elastic contact piece 401 is pressed onto the contact 402, and the circuit of the alarm 2 is connected. At this time, the alarm 2 sounds an alarm.

[0033] Specifically, alarm type 2 is an audible and visual alarm.

[0034] Specifically, the pressure switch 4 includes: a base shell 404, an elastic block 403 inside the base shell 404, a contact 402 on the elastic block 403, and an elastic contact piece 401 covering the opening of the base shell 404; both the elastic contact piece 401 and the contact 402 are made of metal material, and there is a gap between the elastic contact piece 401 and the contact 402. Under the action of external force, the elastic contact piece 401 deforms and comes into contact with the contact 402.

[0035] The elastic contact 401 and contact 402 are connected in series in the circuit as contacts of the alarm 2.

[0036] The specific working method is as follows:

[0037] There is a gap between the wear plate 3 and the pressure switch 4. As the wear plate 3 is worn, its thickness gradually decreases. When the thickness of the wear plate 3 is insufficient to support the pressure between the slide rail 5 and the current collector 6, the wear plate 3 is crushed. The wear plate 3 then adheres to the pressure switch 4, which is triggered. The alarm 2 connected to the pressure switch 4 is energized and sends out an alarm to remind the staff to promptly inspect and replace the current collector 6 and the slide rail 5.

[0038] Of course, the above description is only a preferred embodiment of this utility model and should not be considered as limiting the scope of the embodiments of this utility model. This utility model is not limited to the above examples, and all equivalent changes and improvements made by those skilled in the art within the scope of this utility model should be included in the patent coverage of this utility model.

Claims

1. A crownline trolley collector deviation alarm device, comprising: The trolley wire (5) and the current collector (6) are characterized in that the trolley wire (5) is slidingly connected with a pantograph (1) for introducing current to the current collector (6), and the trolley wire (5) is clamped into a sliding groove of the pantograph (1); The inner wall of the pantograph (1) sliding groove is provided with a press switch (4) and a running-in plate (3), and the running-in plate (3) is between the press switch (4) and the trolley wire (5); the press switch (4) is protected and shielded by the running-in plate (3); The outer side of the pantograph (1) is provided with an alarm (2) electrically connected with the press switch (4).

2. The overhead line current collector deviation alarm device according to claim 1, wherein The pantograph (1) comprises a shell (101), the shell (101) is provided with a conductive block (102) inside, the trolley wire (5) is slidingly connected to the shell (101) inside, and the conductive block (102) is movably embedded into the trolley wire (5); the current collector (6) introduces current through the conductive block (102).

3. The overhead line current collector deviation alarm device according to claim 2, wherein The running-in plate (3) comprises a break plate (301) connected to the inner wall of the shell (101), and the break plate (301) is attached with a wear plate (302) on the side close to the trolley wire (5).

4. The overhead line current collector deviation alarm device according to claim 3, wherein The break plate (301) is provided with a stress groove (303) for bending itself.

5. The overhead line current collector deviation alarm device according to claim 1, wherein The press switch (4) comprises a bottom shell (404), the bottom shell (404) is provided with an elastic block (403) inside, the elastic block (403) is provided with a contact (402), and the opening of the bottom shell (404) is covered with an elastic contact piece (401); The elastic contact piece (401) and the contact (402) are connected in series as the contact points of the alarm (2) in the circuit.

6. The overhead line current collector deviation alarm device according to claim 2, wherein The alarm (2) is an audible and visual alarm.

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