A crown block sliding wire cleaning device

Abstract

The utility model relates to a crown block sliding wire cleaning device, belongs to crown block equipment technical field, including crown block and steel body slide contact line, crown block and steel body slide contact line are perpendicular in plane, and crown block is through slide contact block and steel body slide contact line abut, is connected with support frame on crown block, is equipped with the axial flow fan that can be towards steel body slide contact line on support frame, is connected with insulating support rod on slide contact block, insulating support rod and steel body slide contact line are parallel in vertical plane, one end of insulating support rod away from slide contact block is connected with cleaning shell through compression spring, and cleaning shell cover is equipped on steel body slide contact line, and is equipped with brush on the inner wall of cleaning shell. Axial flow fan helps to complete the dust removal operation to steel body slide contact line surface, cleaning shell is connected with slide contact block through insulating support rod and compression spring, can move along with crown block and continuously carry out the coating cleaning to slide contact line, realizes the continuous operation of not stopping power, avoids the personnel high altitude high risk operation, guarantees the safety and high efficiency of dust removal process.

Description

Technical Field

[0001] This utility model belongs to the field of overhead crane equipment technology, specifically an overhead crane sliding line cleaning device. Background Technology

[0002] In steel smelting enterprises, overhead cranes (commonly known as "conductors") are core equipment for material handling, and their power supply is usually achieved through steel conductor rails. These conductor rails typically employ a rigid metal conductor structure, with a common rated voltage of 3kV. Mechanical support and electrical isolation are achieved through post insulators fixed beside the overhead crane tracks. Due to the special environment of steel production, the air is rich in conductive impurities such as metal dust, carbon powder, and high-temperature sintered particles. These impurities easily accumulate on the surface of the insulators, forming a conductive contamination layer. While this layer can maintain a certain insulation strength under dry conditions, in humid weather or condensation environments, the insulation resistance drops sharply after the ash layer becomes damp, easily triggering surface discharge or even surface flashover. In severe cases, it can cause a relative-to-ground short circuit through the supporting steel beams, causing the 3kV power supply system to trip, directly affecting the normal operation of the overhead crane and continuous production of the enterprise.

[0003] To ensure reliable power supply to the sliding contact line system, conductive dust accumulation on the insulator surface must be removed regularly. Currently, the main cleaning methods include power-off cleaning and live-line work. Power-off cleaning requires personnel to climb to the elevated track for high-altitude, edge-prone work, which is not only labor-intensive and inefficient but also carries a high risk of falls. Furthermore, the shutdown process disrupts production, making it economically unfeasible. Live-line cleaning requires operators to stand on the overhead crane and move with it to clean the high-voltage energized parts. While avoiding production stoppage, this method faces multiple risks, including high-voltage electric shock, induced electric shock, and mechanical collisions, demanding extremely high skill levels and protective measures, resulting in significant safety risks.

[0004] Therefore, the problem of cleaning accumulated dust from steel conductor rail insulators has become a prominent challenge restricting the safe and stable operation of overhead cranes in steel enterprises. There is an urgent need for a technical solution that can efficiently and reliably complete insulator cleaning without power interruption or endangering personnel safety, in order to solve the electrical faults caused by accumulated dust and the operational hazards and production impacts of traditional cleaning methods. Utility Model Content

[0005] To address the issues of dust accumulation on the surface of steel contact lines during on-site construction, which affects power supply reliability, and the high risk of manual operation under live conditions, this invention provides a crane contact line cleaning device that can operate without power interruption.

[0006] This utility model is achieved through the following technical solution: A crane conductor rail cleaning device includes a crane trolley and a steel conductor rail. The crane trolley and the steel conductor rail are perpendicular in a plane, and the crane trolley abuts against the steel conductor rail via a sliding contact block. A support frame is connected to the crane trolley, and an axial flow fan that can face the steel conductor rail is mounted on the support frame. An insulating support rod is connected to the sliding contact block. The insulating support rod is parallel to the steel conductor rail in a vertical plane. The end of the insulating support rod away from the sliding contact block is connected to a cleaning housing via a compression spring. The cleaning housing covers the steel conductor rail, and the inner wall of the cleaning housing is provided with bristles.

[0007] Axial flow fans help to clean the surface of the steel sliding contact line; at the same time, with the help of brush bristles, dust cleaning dead corners are avoided; the cleaning housing is connected to the sliding contact block through an insulated support rod and a compression spring, which can move with the overhead crane and continuously cover and clean the sliding contact line, realizing continuous operation without power interruption, avoiding high-altitude and high-risk operations by personnel, and ensuring the safety and efficiency of the dust cleaning process.

[0008] A further improvement of this invention is that the compression spring contains an adjusting bolt. One end of the adjusting bolt, away from the cleaning housing, is connected to an insulating support rod. A gap is pre-reserved between the other end of the adjusting bolt and the cleaning housing. An inner connecting rod, coaxially connected to the cleaning housing, is inserted into the adjusting bolt. This insertion of the inner connecting rod within the adjusting bolt, in conjunction with the compression spring, helps to increase the contact pressure and adhesion between the bristles and the steel sliding contact line, ensuring effective dust removal and preventing excessive wear.

[0009] A further improvement of this invention is that the aforementioned adjusting bolt passes through the insulating support rod and is threaded onto the insulating support rod. By adjusting the relative position of the adjusting bolt on the insulating support rod, the maximum gap between the cleaning housing and the steel sliding contact line can be adjusted.

[0010] A further improvement of this invention is that guide rods are provided on both sides of the adjusting bolt, with the two guide rods lying in the same plane as the adjusting bolt. One end of each guide rod is connected to the cleaning housing, and the other end of the guide rod passes through the insulating support rod. The guide rods help to assist the cleaning housing in maintaining stability and reliability on its vertical floating trajectory.

[0011] A further improvement of this invention is that the cleaning housing, brush bristles, guide rod, adjusting bolt, inner connecting rod, and compression spring are all made of insulating materials. This fully insulated structure design completely isolates the cleaning device from high-voltage electricity, preventing accidental discharge or short circuits during cleaning and improving operational safety, especially suitable for 3kV high-voltage environments.

[0012] A further improvement of this invention is that the cross-section of the cleaning housing is U-shaped. The U-shaped structure can achieve three-sided coverage of the sliding contact line, ensuring thorough dust removal without dead angles, while also playing a certain role in dust collection and preventing diffusion, thus avoiding secondary pollution.

[0013] A further improvement of this invention is that the end of the cleaning housing is provided with an expansion section, the cross-section of which is an outwardly folded arc shape. The guiding design of the arc surface of the expansion section enables it to be smoothly guided into the steel contact line, preventing the device from getting stuck or impacted during movement, especially at track joints or uneven sections, thus enhancing the equipment's passability and durability.

[0014] A further improvement of this invention is that all the bristles extend towards the steel body's sliding contact line. This directional arrangement of the bristles concentrates the cleaning force, resulting in better removal of stubborn dust and bonded dirt, thus improving cleaning efficiency per unit area.

[0015] As can be seen from the above technical solutions, the beneficial effects of this utility model are: the axial flow fan helps to complete the dust removal operation on the surface of the steel sliding contact line; at the same time, with the help of the brush bristles, it avoids the existence of dust cleaning dead corners; the cleaning shell is connected to the sliding contact block through an insulating support rod and a compression spring, which can move with the overhead crane and continuously cover and clean the sliding contact line, realizing continuous operation without power interruption, avoiding high-altitude and high-risk operations by personnel, and ensuring the safety and efficiency of the dust removal process. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the cooperation structure between the overhead crane and the steel sliding contact line in a specific embodiment of this utility model.

[0018] Figure 2 This is a schematic diagram of the cooperation structure between the steel sliding contact line and the cleaning device in a specific embodiment of this utility model.

[0019] Figure 3 for Figure 2 Enlarged schematic diagram of part A in the middle.

[0020] Figure 4 This is a schematic diagram of the cleaning shell structure according to a specific embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the cleaning housing and brush structure of a specific embodiment of this utility model.

[0022] In the attached diagram: 10. Overhead crane; 11. Support frame; 12. Axial flow fan; 13. Sliding contact block; 131. Insulating support rod; 20. Steel sliding contact line; 30. Cleaning shell; 31. Adjusting bolt; 32. Inner connecting rod; 33. Compression spring; 34. Guide rod; 301. Expansion section; 302. Brush bristles. Detailed Implementation

[0023] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0024] like Figures 1-5 As shown, this utility model discloses a crane sliding contact line cleaning device, including a crane 10 and a steel sliding contact line 20. The crane 10 and the steel sliding contact line 20 are perpendicular in a plane, and the crane 10 abuts against the steel sliding contact line 20 through a sliding contact block 13. A support frame 11 is connected to the crane 10, and an axial flow fan 12 that can face the steel sliding contact line 20 is provided on the support frame 11. An insulating support rod 131 is connected to the sliding contact block 13. The insulating support rod 131 is parallel to the steel sliding contact line 20 in a vertical plane. The end of the insulating support rod 131 away from the sliding contact block 13 is connected to a cleaning housing 30 through a compression spring 33. The cleaning housing 30 covers the steel sliding contact line 20, and bristles 302 are provided on the inner wall of the cleaning housing 30.

[0025] The axial flow fan 12 helps to complete the dust removal operation on the surface of the steel sliding contact line 20; at the same time, with the help of the brush bristles 302, it avoids the existence of dust cleaning dead corners; the cleaning housing 30 is connected to the sliding contact block 13 through the insulating support rod 131 and the compression spring 33, and can move with the overhead crane 10 to continuously cover and clean the sliding contact line, realizing continuous operation without power interruption, avoiding high-altitude and high-risk operations by personnel, and ensuring the safety and efficiency of the dust removal process.

[0026] The cleaning housing 30 has a U-shaped cross-section. The U-shaped structure can achieve three-sided coverage of the sliding contact line, ensuring thorough dust removal without dead angles, while also playing a certain role in dust collection and preventing diffusion, thus avoiding secondary pollution.

[0027] The cleaning housing 30 has an expansion section 301 at its end, and the cross-section of the expansion section 301 is an arc shape that flips outward. The guiding design of the arc surface of the expansion section 301 allows it to be smoothly guided into the steel sliding contact line 20, preventing the device from getting stuck or impacted during movement, especially at track joints or uneven sections, thus enhancing the equipment's passability and durability.

[0028] All the bristles 302 extend toward the steel body sliding contact line 20. The directional extension of the bristles 302 can concentrate the cleaning force, especially for stubborn dust and bonded dirt, which has a better removal effect and helps to improve the cleaning efficiency per unit area.

[0029] The compression spring 33 contains an adjusting bolt 31. One end of the adjusting bolt 31, away from the cleaning housing 30, is connected to the insulating support rod 131. A gap is reserved between the other end of the adjusting bolt 31 and the cleaning housing 30. An inner connecting rod 32, connecting to the cleaning housing 30, is coaxially inserted into the adjusting bolt 31. This insertion of the inner connecting rod 32 within the adjusting bolt 31, in conjunction with the compression spring 33, helps to increase the contact pressure and adhesion between the bristles 302 and the steel sliding contact line 20, ensuring effective dust removal and preventing excessive wear.

[0030] The inner connecting rod 32 extends into the adjusting bolt 31 to a fixed depth. Therefore, by adjusting the position of the adjusting bolt 31 relative to the insulating support rod 131, and in conjunction with the compression spring 33, the amplitude of the swaying of the cleaning housing 30 can be limited.

[0031] The adjusting bolt 31 passes through the insulating support rod 131 and is threaded onto the insulating support rod 131. By adjusting the relative position of the adjusting bolt 31 on the insulating support rod 131, the maximum gap between the cleaning housing 30 and the steel sliding contact line 20 can be adjusted.

[0032] Guide rods 34 are provided on both sides of the adjusting bolt 31. The two guide rods 34 are in the same plane as the adjusting bolt 31. One end of the guide rod 34 is connected to the cleaning housing 30, and the other end of the guide rod 34 passes through the insulating support rod 131. The guide rods 34 help to assist the cleaning housing 30 in maintaining stability and reliability on its vertical floating trajectory.

[0033] The cleaning housing 30, brush bristles 302, guide rod 34, adjusting bolt 31, inner connecting rod 32, and compression spring 33 are all made of insulating materials. The fully insulated structure design completely isolates the cleaning device from the high-voltage electricity, preventing accidental discharge or short circuit during cleaning, which helps to improve operational safety, especially suitable for 3kV high-voltage environments.

[0034] In the overhead crane equipment applicable to this case, the steel sliding contact line 20 is a three-phase four-wire system, namely three live wires and one neutral wire, and the four steel sliding contact lines 20 are arranged vertically to facilitate the overhead crane trolley 10 to draw power through the connection of the slider.

[0035] In summary, the working principle of this device is as follows: The cleaning device is installed on the overhead crane 10 and moves with it, enabling continuous automatic cleaning of the 3kV steel sliding contact line 20 without power interruption. Its working process consists of two main stages: blowing and mechanical cleaning. The blowing process: The axial flow fan 12, which is fixed on the support frame 11, continuously blows air toward the steel sliding contact line 20, generating a directional airflow that can effectively blow away the loose dust and light conductive particles accumulated on the surface of the steel sliding contact line 20, playing a pre-cleaning role and reducing the load for subsequent mechanical cleaning.

[0036] Mechanical cleaning process: The cleaning housing 30 is connected to the sliding contact block 13 via an insulating support rod 131. This housing, under the action of a compression spring 33, always covers the surface of the steel sliding contact line 20. As the overhead crane 10 moves, the bristles 302 inside the cleaning housing 30 continuously scrape the steel sliding contact line 20, thoroughly removing residual dirt and adhesive dust. The pressure of the compression spring 33 can be precisely adjusted via the built-in adjusting bolt 31 to ensure that the contact pressure of the bristles 302 is moderate, guaranteeing both cleaning effectiveness and avoiding damage to the surface of the sliding contact line.

[0037] Considering that the overhead crane 10 will move back and forth along the steel sliding contact line 20, cleaning devices can be set on both sides of the slider movement direction, and the axial flow fan 12 can be set to an adjustable airflow structure.

[0038] The overhead crane sliding contact line cleaning device described in this utility model uses an axial flow fan to facilitate the cleaning of the steel sliding contact line surface; at the same time, with the help of brush bristles, it avoids the existence of dust cleaning dead corners; the cleaning housing is connected to the sliding contact block through an insulating support rod and a compression spring, and can move with the overhead crane to continuously cover and clean the sliding contact line, realizing continuous operation without power interruption, avoiding high-altitude and high-risk operations by personnel, and ensuring the safety and efficiency of the dust cleaning process.

[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A crane sliding contact line cleaning device, comprising a crane trolley (10) and a steel sliding contact line (20), wherein the crane trolley (10) and the steel sliding contact line (20) are perpendicular in a plane, and the crane trolley (10) abuts against the steel sliding contact line (20) via a sliding contact block (13), characterized in that, The overhead crane (10) is connected to a support frame (11), and the support frame (11) is equipped with an axial flow fan (12) that can face the steel sliding contact line (20); the sliding contact block (13) is connected to an insulating support rod (131), the insulating support rod (131) is parallel to the steel sliding contact line (20) in the vertical plane, and the end of the insulating support rod (131) away from the sliding contact block (13) is connected to a cleaning housing (30) through a compression spring (33). The cleaning housing (30) covers the steel sliding contact line (20), and the inner wall of the cleaning housing (30) is provided with bristles (302).

2. The overhead crane sliding line cleaning device according to claim 1, characterized in that, The compression spring (33) is provided with an adjusting bolt (31). One end of the adjusting bolt (31) away from the cleaning housing (30) is connected to the insulating support rod (131). The other end of the adjusting bolt (31) is reserved with a gap between it and the cleaning housing (30). An inner connecting rod (32) connecting the cleaning housing (30) is coaxially inserted on the adjusting bolt (31).

3. The overhead crane sliding line cleaning device according to claim 2, characterized in that, The adjusting bolt (31) passes through the insulating support rod (131) and is threaded onto the insulating support rod (131).

4. The overhead crane sliding line cleaning device according to claim 3, characterized in that, Guide rods (34) are provided on both sides of the adjusting bolt (31). The two guide rods (34) are in the same plane as the adjusting bolt (31). One end of the guide rod (34) is connected to the cleaning housing (30), and the other end of the guide rod (34) passes through the insulating support rod (131).

5. The overhead crane sliding line cleaning device according to claim 4, characterized in that, The cleaning housing (30), brush bristles (302), guide rod (34), adjusting bolt (31), inner connecting rod (32) and compression spring (33) are all made of insulating material.

6. A crane sliding line cleaning device according to any one of claims 1 to 5, characterized in that, The cross-section of the cleaning housing (30) is U-shaped.

7. A crane sliding line cleaning device according to claim 6, characterized in that, The cleaning housing (30) has an expansion section (301) at its end, and the cross-section of the expansion section (301) is an arc shape that flips outward.

8. A crane sliding line cleaning device according to claim 7, characterized in that, The bristles (302) all extend toward the steel body sliding contact line (20).

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