Bridge type grab bucket sliding contact line protection and isolation device

Abstract

The utility model relates to the technical field of hoisting equipment, in particular to a bridge type grab bucket sliding contact line protection and isolation device which comprises a track beam, a grab bucket track is arranged at the top end of the track beam, and a sliding contact line support is fixedly installed at one end of the track beam. The insulating cover plate is mounted at the top of the angle steel sliding contact line, so that metal dust, foreign matters, rain and snow cannot fall between the adjacent angle steel sliding contact lines, switch tripping caused by grounding faults is not easily caused, the positioning pins on the connecting plate are inserted into the positioning grooves, the connecting plate and the insulating cover plate can be further fixed subsequently, and the service life of the switch is prolonged. By installing the insulating partition plate between the two adjacent angle steel sliding contact lines, a current collector cannot make contact with the adjacent angle steel sliding contact lines when falling off, switch tripping caused by short-circuit faults is avoided, then a switch is not prone to being damaged, the problem that fault points causing switch tripping are difficult to determine, and the maintenance efficiency of workers is low is solved, and the service life of the current collector is prolonged. And normal output and production of concentrates are not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting equipment, in particular to a bridge grab busbar protection and isolation device. Background Art

[0002] The bridge grab is the main equipment in the concentrate output process of the ore dressing plant. It is a bridge crane that uses a grab as a hoisting device. During the raw material preparation operation, it can carry out operations such as unloading, stacking, reversing, retrieving and loading. It is mainly composed of five parts: bridge frame, trolley running mechanism, car running mechanism, grab mechanism and electrical equipment. The busbar is a group of power transmission devices used to power mobile equipment.

[0003] In the prior art, when a bridge grab is used for operation, an A-phase busbar, a B-phase busbar and a C-phase busbar are generally provided on one side of the grab track beam. However, the existing bridge grab busbars are usually open and exposed, and metal dust, foreign matter and rain and snow may fall between adjacent angle steel busbars, which may easily cause the switch to trip due to grounding or short circuit faults, resulting in easy damage to the switch. Since it is difficult to determine the fault point causing the switch to trip, the maintenance efficiency of the staff is low, affecting the normal output and production of the concentrate. Utility Model Content

[0004] The utility model aims to provide a bridge grab busbar protection and isolation device to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a bridge-type grab busbar protection and isolation device, comprising: a track beam, a grab track is arranged at the top of the track beam, a busbar bracket is fixedly installed at one end of the track beam, and three angle steel busbars are arranged at the top of the busbar bracket;

[0006] The busbar bracket is fixedly provided with a limit plate near the top of the angle steel busbar, and one end of the limit plate is connected to an insulating partition;

[0007] An insulating cover plate is arranged on the top of the three angle steel busbars, a connecting plate is installed between the top of the insulating cover plate and the track beam, a positioning pin is installed at one end of the connecting plate close to the track beam, and a positioning groove is opened at the top of the track beam close to the positioning pin.

[0008] Preferably, the three angle steel busbars are arranged in parallel, insulators are provided between the bottom ends of the three angle steel busbars and the top ends of the busbar brackets, and current collectors are installed at the top ends of the three angle steel busbars.

[0009] Preferably, two limit plates are provided and installed between two adjacent angle steel busbars, and connecting angle steels are connected between the two limit plates and the adjacent insulating partitions.

[0010] Preferably, the inner walls of the two connecting angle steels are fixedly connected to the adjacent insulating partitions, the outer walls of one end of the two connecting angle steels are fixedly mounted on the adjacent limiting plates, and the bottom ends of the two connecting angle steels are fixedly welded to the top of the busbar bracket.

[0011] Preferably, a cover frame is installed at the top edge of the insulating cover, and a plurality of bolts are evenly installed on the top of the cover frame. A nut is threadedly connected to one end of each bolt away from the cover frame, and the outer wall of each nut is connected to a resin plate.

[0012] Preferably, there are several connecting plates and all of them are knife-shaped, one end of each connecting plate is fixedly mounted on the top of the insulating cover plate, and the other end of each connecting plate is fixedly mounted on the top of the track beam.

[0013] Preferably, each of the connecting plates is provided with a positioning hole at the top end close to the positioning pin, and the bottom end of each positioning pin slides through the adjacent positioning hole and is inserted into the adjacent positioning groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model installs an insulating cover plate on the top of the angle steel busbar, so that metal dust, foreign matter and rain and snow will not fall between adjacent angle steel busbars, and it is not easy to cause a grounding fault to cause the switch to trip. By inserting the positioning pin on the connecting plate into the positioning groove, it is convenient to further fix the connecting plate and the insulating cover plate. By installing an insulating partition plate between two adjacent angle steel busbars, the current collector will not contact the adjacent angle steel busbars when it falls off, so as to avoid a short circuit fault causing the switch to trip, thereby making the switch less likely to be damaged, and solving the problem that it is difficult to determine the fault point that causes the switch to trip, resulting in low maintenance efficiency for staff, so as to avoid affecting the normal output and production of concentrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 A schematic diagram of the structure enlargement in the middle;

[0018] Figure 3 It is a schematic diagram of the explosion of the local structure of the utility model;

[0019] Figure 4 This is a three-dimensional schematic diagram of the insulating cover structure of the utility model;

[0020] Figure 5 It is a three-dimensional schematic diagram of the internal local structure of the utility model.

[0021] In the figure: 1. grab track; 2. track beam; 3. busbar bracket; 4. connecting plate; 5. insulating cover; 6. cover frame; 7. bolts; 8. nuts; 9. resin plate; 10. angle steel busbar; 11. current collector; 12. insulator; 13. insulating partition; 14. connecting angle steel; 15. limit plate; 16. positioning groove; 17. positioning pin; 18. positioning hole. DETAILED DESCRIPTION

[0022] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present utility model, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments can be used in combination with each other.

[0026] See also Figures 1 to 5 The utility model provides a technical solution: a bridge-type grab busbar protection and isolation device, comprising: a track beam 2, a grab track 1 is arranged at the top of the track beam 2, a busbar bracket 3 is fixedly installed at one end of the track beam 2, three angle steel busbars 10 are arranged at the top of the busbar bracket 3, and the three angle steel busbars 10 are sequentially A-phase busbar, B-phase busbar and C-phase busbar; the three angle steel busbars 10 are arranged in parallel, insulators 12 are arranged between the bottom ends of the three angle steel busbars 10 and the top of the busbar bracket 3, and power receivers 11 are installed at the tops of the three angle steel busbars 10, which is convenient for powering the mobile equipment.

[0027] A limit plate 15 is fixedly installed near the top of the angle steel busbar 10 of the busbar support 3, and one end of the limit plate 15 is connected to an insulating partition 13; two limit plates 15 are provided and installed between two adjacent angle steel busbars 10, and connecting angle steels 14 are connected between the two limit plates 15 and the adjacent insulating partitions 13, so as to facilitate the determination of the installation position of the insulating partitions 13. The inner walls of the two connecting angle steels 14 are fixedly connected to the adjacent insulating partitions 13, and the outer walls of one end of the two connecting angle steels 14 are fixedly installed on the adjacent limit plates 15, and the bottom ends of the two connecting angle steels 14 are fixedly welded to the top of the busbar support 3, so as to facilitate the fixing of the insulating partitions 13.

[0028] An insulating cover plate 5 is provided on the top of the three angle steel busbars 10, a connecting plate 4 is installed between the top of the insulating cover plate 5 and the track beam 2, a locating pin 17 is installed at one end of the connecting plate 4 close to the track beam 2, and a locating groove 16 is provided at the top of the track beam 2 close to the locating pin 17. A cover plate frame 6 is installed at the top edge of the insulating cover plate 5, and a number of bolts 7 are evenly installed on the top of the cover plate frame 6, each bolt 7 is threadedly connected to a nut 8 at one end away from the cover plate frame 6, and a resin plate 9 is connected to the outer wall of each nut 8, and the cover plate frame 6 and the insulating cover plate 5 can be tightly connected by the threaded connection of the bolts 7 and the nuts 8, and the bottom end of the insulating cover plate 5 is made into a fully insulating surface by wrapping the resin plate 9 and gluing it to the outside of the nut 8. There are several connection plates 4, all of which are knife-shaped. One end of each connection plate 4 is fixedly mounted on the top of the insulating cover plate 5, and the other end of each connection plate 4 is fixedly mounted on the top of the track beam 2. The top of the insulating cover plate 5 close to the track beam 2 is aligned with the bottom of the track beam 2, so as to facilitate the fixed installation of the insulating cover plate 5 on the track beam 2. A positioning hole 18 is provided at the top of each connection plate 4 close to the positioning pin 17, and the bottom end of each positioning pin 17 slides through the adjacent positioning hole 18 and is inserted into the adjacent positioning groove 16, so as to preliminarily position the connection plate 4, so as to facilitate the subsequent welding of the connection plate 4 to the track beam 2.

[0029] When the device is working, the insulating cover plate 5 can be fixed on the cover plate frame 6 through the threaded connection of the bolt 7 and the nut 8. By wrapping the resin plate 9 and sticking it to the outside of the nut 8, the bottom end of the insulating cover plate 5 is a fully insulating surface. When the angle steel busbar 10 bounces and contacts the insulating cover plate 5, it is not easy to cause a grounding fault and cause the switch to trip, and metal dust, foreign matter and rain and snow will not fall between the adjacent angle steel busbars 10. First, one end of the connecting plate 4 is fixedly installed on the top of the insulating cover plate 5, and then the positioning pin 17 on the connecting plate 4 is inserted into the positioning groove 16. In the process, the connecting plate 4 can be initially positioned to facilitate welding the other end of the connecting plate 4 to the track beam 2, and then the connection stability between the insulating cover plate 5 and the track beam 2 can be ensured. By installing an insulating partition 13 between two adjacent angle steel busbars 10, the current collector 11 will not contact the adjacent angle steel busbars 10 when it falls off, so as to avoid a short circuit fault causing the switch to trip, thereby making the switch less likely to be damaged, solving the problem of difficulty in determining the fault point that causes the switch to trip, resulting in low maintenance efficiency for staff, so as to avoid affecting the normal output and production of concentrate.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bridge grab busbar protection and isolation device, comprising: A track beam (2), the top of which is provided with a grab track (1), characterized in that: a busbar bracket (3) is fixedly mounted on one end of the track beam (2), and three angle steel busbars (10) are arranged on the top of the busbar bracket (3); The busbar support (3) is fixedly provided with a limit plate (15) near the top of the angle steel busbar (10), and one end of the limit plate (15) is connected to an insulating partition (13); An insulating cover plate (5) is arranged on the top of the three angle steel busbars (10), a connecting plate (4) is installed between the top end of the insulating cover plate (5) and the track beam (2), a positioning pin (17) is installed at one end of the connecting plate (4) close to the track beam (2), and a positioning groove (16) is provided at the top end of the track beam (2) close to the positioning pin (17).

2. A bridge grab busbar protection and isolation device according to claim 1, characterized in that: The three angle steel busbars (10) are arranged in parallel, insulators (12) are arranged between the bottom ends of the three angle steel busbars (10) and the top ends of the busbar brackets (3), and current collectors (11) are installed at the top ends of the three angle steel busbars (10).

3. A bridge grab busbar protection and isolation device according to claim 1, characterized in that: Two limit plates (15) are provided and installed between two adjacent angle steel busbars (10), and connecting angle steels (14) are connected between the two limit plates (15) and the adjacent insulating partitions (13).

4. A bridge grab busbar protection and isolation device according to claim 3, characterized in that: The inner walls of the two connecting angle steels (14) are fixedly connected to the adjacent insulating partition plate (13), the outer walls of one end of the two connecting angle steels (14) are fixedly mounted on the adjacent limiting plate (15), and the bottom ends of the two connecting angle steels (14) are fixedly welded to the top end of the busbar bracket (3).

5. The bridge grab busbar protection and isolation device according to claim 1 is characterized in that: A cover frame (6) is installed at the top edge of the insulating cover (5), and a plurality of bolts (7) are evenly installed at the top of the cover frame (6). A nut (8) is threadedly connected to one end of each bolt (7) away from the cover frame (6), and the outer wall of each nut (8) is connected to a resin plate (9).

6. A bridge grab busbar protection and isolation device according to claim 1, characterized in that: A plurality of connection plates (4) are provided and are all knife-shaped, one end of each connection plate (4) is fixedly mounted on the top of the insulating cover plate (5), and the other end of each connection plate (4) is fixedly mounted on the top of the track beam (2).

7. The bridge grab busbar protection and isolation device according to claim 1 is characterized in that: A positioning hole (18) is formed at the top of each connecting plate (4) near the positioning pin (17), and the bottom end of each positioning pin (17) slides through the adjacent positioning hole (18) and is inserted into the adjacent positioning groove (16).

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