CN215567626U - Electrical protection system applied to bridge crane lifting appliance - Google Patents

Abstract

The utility model relates to the field of bridge cranes and discloses an electrical protection system applied to a bridge crane sling, which comprises a protective box and an electrical equipment main body, wherein the electrical equipment main body is arranged in the protective box, a supporting plate is connected between the left side wall and the right side wall in the protective box in a sliding manner, the lower end surface of the electrical equipment main body is fixedly connected with the upper end surface of the protective box, a plurality of connecting plates are uniformly arranged on the front surface, the rear surface, the left side surface and the right side surface of the electrical equipment main body along the perpendicular bisector of the side walls, a plurality of idler wheels are clamped on the other surface of each connecting plate, tracks are arranged on the front surface, the rear surface, the left surface and the right surface of the inner wall of the protective box, and the idler wheels are arranged in the tracks. The utility model has the beneficial effects that: through setting up pulley, track and connecting plate, the orbital connection effect of pulley cooperation, the electrical equipment main part of being convenient for steadily slides from top to bottom and is combatted earthquake, is convenient for improve its shock-proof absorbing effect, has avoided the vibrations that the electrical equipment produced when the bridge crane hoist hoists the heavy object to cause the damage to electrical equipment internals.

Description

Electrical protection system applied to bridge crane lifting appliance

Technical Field

The utility model relates to the field of bridge cranes, in particular to an electrical protection system applied to a bridge crane sling.

Background

In order to meet the requirement of cargo transportation, maritime transportation needs to be carried out through cargo ships, a bridge crane is needed for loading and unloading cargos at a port, a plurality of electrical parts are arranged in the bridge crane to control the operation of the bridge crane, however, the container lifted by the bridge crane is generally large in size and heavy in weight, so that in the process of lifting and taking workpieces, the phenomenon that the workpieces shake back and forth often occurs, the vibration of a lifting appliance is also aggravated, and the vibration of the lifting appliance is very likely to damage electrical elements in the lifting appliance.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electric protection system applied to a bridge crane sling, which can effectively reduce the vibration of electric equipment in the bridge crane sling and protect the electric equipment in the bridge crane sling.

In order to achieve the purpose, the utility model provides the following technical scheme:

an electrical protection system applied to a bridge crane lifting appliance comprises a protection box and an electrical equipment main body, wherein the electrical equipment main body is arranged in the protection box, a supporting plate is connected between the left side wall and the right side wall in the protection box in a sliding manner, the lower end face of the electrical equipment main body is fixedly connected with the upper end face of the supporting plate, a plurality of connecting plates are uniformly arranged on the front face, the rear face, the left face and the right face of the electrical equipment main body along the perpendicular bisector of the side walls, idler wheels are clamped on the other faces of the connecting plates, tracks are arranged on the front face, the rear face, the left face and the right face of the inner wall of the protection box, and the idler wheels are arranged in the tracks; the terminal surface fixedly connected with connecting piece under the backup pad, both ends symmetry rotation is connected with the connecting rod about the connecting piece, the other end of connecting rod rotates and is connected with the slider, and the one side that two sets of sliders kept away from each other respectively with the left and right lateral wall sliding connection of protective housing, it is two sets of the slider with be connected with first spring between the inner chamber bottom of protective housing.

Preferably, the rail further comprises a groove provided on an outer wall of the electric apparatus main body.

Preferably, the lower portions of the two groups of sliding blocks are further rotatably connected with push rods, the other ends of the push rods are rotatably connected with sliding blocks, the sliding blocks are slidably connected with the bottom of the inner cavity of the protection box, and a second spring is connected between the sliding blocks.

Preferably, a plurality of air holes are formed in the side wall of the protection box, and the air holes are arranged in an array mode.

Preferably, activated carbon is arranged in the plurality of air vents.

Preferably, a moisture-proof interlayer is arranged in the middle of the supporting plate.

Preferably, activated carbon is arranged in the moisture-proof interlayer.

Preferably, a third spring is provided between the connection plate and the outer side wall of the electric apparatus main body.

Compared with the prior art, the utility model has the beneficial effects that:

on one hand, the pulley, the rail and the connecting plate are arranged, and the pulley is matched with the connecting action of the rail, so that the electrical equipment main body can stably slide up and down to resist vibration, and the anti-vibration and shock-absorbing effects of the electrical equipment main body can be improved; on the other hand, produce vibrations when the bridge crane hoist, when the backup pad moves down, the connecting piece makes the sliding block lapse through the connecting rod, extrude first spring, produce the first shock attenuation effect, when the sliding block descends, the sliding block passes through the push rod and produces thrust to the sliding block, two sets of sliding blocks extrude the second spring, produce the second shock attenuation effect, can produce fine shock attenuation effect to electrical equipment through twice shock attenuation, the vibrations of having avoided electrical equipment to produce when the heavy object is hoisted to the bridge crane hoist cause the damage to electrical equipment internals.

Drawings

FIG. 1 is a schematic cross-sectional front view illustrating an embodiment of the present invention;

FIG. 2 is a schematic top view of a cross-sectional structure according to an embodiment of the present invention;

FIG. 3 is an enlarged view of A in FIG. 2 according to an embodiment of the present invention.

In the figure: 1. a protective box; 2. an electrical equipment main body; 3. a support plate; 31. a moisture-proof interlayer; 4. a connecting plate; 5. a roller; 6. a track; 7. a connecting member; 8. a connecting rod; 9. a slider; 10. a first spring; 11. a push rod; 12. a slider; 13. a second spring; 14. air holes are formed; 15. and a third spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the utility model provides an electrical protection system applied to a bridge crane sling, comprising a protection box 1 and an electrical equipment main body 2, wherein the electrical equipment main body 2 is arranged in the protection box 1, a support plate 3 is connected between the left side wall and the right side wall in the protection box 1 in a sliding manner, the lower end surface of the electrical equipment main body 2 is fixedly connected with the upper end surface of the support plate 3, a plurality of third springs 15 are uniformly arranged on the front surface, the rear surface, the left side wall and the right side wall of the electrical equipment main body 2 along the perpendicular bisector of the side wall, the other end of each third spring 15 is provided with a connecting plate 4, the other surface of each connecting plate 4 is clamped with a roller 5, the third springs have enough strength to support the connecting plates 4 and the rollers 5 to keep a fixed height, rails 6 are arranged on the front surface, the rear surface, the left side wall and the right side wall of the protection box 1, the rails 6 further comprise grooves arranged on the outer wall of the electrical equipment main body 2, the rollers 5 are arranged in the tracks 6; terminal surface fixedly connected with connecting piece 7 under backup pad 3, the both ends symmetry rotation about connecting piece 7 is connected with connecting rod 8, the other end rotation of connecting rod 8 is connected with slider 9, and the one side that two sets of sliders 9 kept away from each other respectively with the left side of protective housing 1, right side wall sliding connection, be connected with first spring 10 between the inner chamber bottom of two sets of sliders 9 and protective housing 1, two sets of sliders 9 below all still rotate and are connected with push rod 11, the push rod 11 other end rotates and is connected with sliding block 12, two sets of sliding blocks 12 all with the inner chamber bottom sliding connection of protective housing 1, be connected with second spring 13 between two sets of sliding blocks 12. On one hand, the pulley is matched with the connecting action of the rail 6 to be convenient for the electrical equipment main body 2 to stably slide up and down for shock resistance through the arrangement of the pulley, the rail 6, the connecting plate 4 and the second spring 13, and the pulley has certain elastic expansion effect when being connected and matched with the sliding cavity through the arrangement of the plurality of second springs 13, so that the electrical equipment main body 2 can have horizontal elasticity to further improve the shock resistance range and the shock resistance and shock absorption effect of the electrical equipment main body, on the other hand, when the bridge crane lifting appliance generates shock and the supporting plate 3 moves downwards, the connecting piece 7 enables the sliding block 9 to slide downwards through the connecting rod 8 to extrude the first spring 10 to generate a first shock absorption effect, when the sliding block 9 descends, the sliding block 9 generates thrust to the sliding block 12 through the push rod 11, and the two groups of sliding blocks 12 extrude the second springs 13 to generate a second shock absorption effect, the electric equipment can be well damped through twice damping, and damage to internal parts of the electric equipment caused by vibration generated when the bridge crane sling lifts a heavy object is avoided.

As shown by the dotted line part in fig. 1, because the electrical equipment can generate heat during operation, a plurality of air holes 14 are arranged on the side wall of the protection box 1 in an array manner, and the air holes 14 can ensure the air circulation inside and outside the protection box 1, ensure the heat generated during the operation of the electrical equipment to be timely dissipated, and reduce the influence on the operation of the electrical equipment.

In addition, as most of bridge cranes are applied to ports and wharfs, the ports are located near seas, air is humid, and the influence on the work of the electrical equipment is large, moisture-proof measures are taken in the bridge cranes, in the embodiment, the moisture-proof interlayer 31 is arranged in the supporting plate 3, the active carbon is arranged in the air holes 14 and the moisture-proof interlayer 31, and the active carbon is used for adsorbing water vapor in the air, so that the influence on the work of the electrical equipment caused by the over-humid air is avoided.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (8)

1. An electric protection system applied to a bridge crane lifting appliance comprises a protection box (1) and an electric equipment main body (2), wherein the electric equipment main body (2) is arranged in the protection box (1), and is characterized in that a supporting plate (3) is connected between the left side wall and the right side wall in the protection box (1) in a sliding manner, the lower end face of the electric equipment main body (2) is fixedly connected with the upper end face of the supporting plate (3), a plurality of connecting plates (4) are uniformly arranged on the front face, the rear face, the left side face and the right side face of the electric equipment main body (2) along the perpendicular bisector of the side wall, rollers (5) are clamped on the connecting plates (4) relative to the other face of the electric equipment main body (2), tracks (6) are arranged on the front face, the rear face, the left face and the right face of the inner wall of the protection box (1), and the rollers (5) are arranged in the tracks (6); terminal surface fixedly connected with connecting piece (7) under backup pad (3), both ends symmetry rotation is connected with connecting rod (8) about connecting piece (7), the other end of connecting rod (8) rotates and is connected with slider (9), and the one side of keeping away from each other of two sets of slider (9) respectively with the left and right lateral wall sliding connection of protective housing (1), it is two sets of slider (9) with be connected with first spring (10) between the inner chamber bottom of protective housing (1).

2. An electrical protection system for a bridge crane spreader according to claim 1, wherein the rail (6) further comprises a groove provided on an outer wall of the electrical apparatus body (2).

3. The electric protection system applied to the bridge crane lifting appliance according to claim 2, wherein a push rod (11) is further rotatably connected below each of the two sets of sliding blocks (9), a sliding block (12) is rotatably connected to the other end of the push rod (11), each of the two sets of sliding blocks (12) is slidably connected with the bottom of the inner cavity of the protection box (1), and a second spring (13) is connected between the two sets of sliding blocks (12).

4. The electrical protection system applied to the bridge crane sling according to claim 1, wherein a plurality of air holes (14) are formed in the side wall of the protection box (1), and the air holes (14) are arranged in an array.

5. The electrical protection system applied to the bridge crane sling according to claim 4, wherein the air holes (14) are internally provided with activated carbon.

6. An electrical protection system applied to a bridge crane sling according to claim 3, wherein a moisture-proof interlayer (31) is arranged in the middle of the supporting plate (3).

7. An electrical protection system for a bridge crane spreader according to claim 6, wherein the moisture-proof interlayer (31) is provided with activated carbon.

8. An electrical protection system for an axle suspension spreader according to claim 5, wherein a third spring (15) is provided between the connection plate (4) and the outer side wall of the electrical apparatus body (2).

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