Breaker lifting device

Abstract

The utility model belongs to the technical field of switch equipment, and discloses a circuit breaker lifting device which comprises a lifting beam, a traction assembly and a positioning screw sleeve. The hoisting beam is connected to the output end of the hoisting device; the number of the traction assemblies is two, each traction assembly comprises a first hoisting plate and a flexible hoisting structure, one end of each flexible hoisting structure is detachably arranged on the hoisting beam, the other end of each flexible hoisting structure is detachably connected to the corresponding first hoisting plate, and each first hoisting plate comprises a first connecting part and a second connecting part which are arranged at an angle; when a welding stud of the 40.5 kV circuit breaker base frame extends out of the switch cabinet, the positioning threaded sleeve can be in threaded connection with the welding stud. In the horizontal movement process of the circuit breaker, the flexible hoisting structure can offset the shearing effect of the inertia force of the circuit breaker on the hoisting beam, the structural durability is higher, and the safety is higher; when the welding stud extends out of the switch cabinet, the positioning thread sleeve is in threaded connection with the welding stud, the positioning thread sleeve can be repeatedly used, the operation steps are simple, and the reliability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to switchgear technical field especially relates to a circuit breaker hoisting device. BACKGROUND

[0002] In switchgear industry, a complete circuit breaker weighs several hundred kilograms, and it is inconvenient to move to the operation platform or switch cabinet. The large size and weight make it impossible for workers to complete the transfer work by manpower, and there is a great safety hazard in manual transfer, which is prone to accidents.

[0003] Taking a 40.5kV circuit breaker as an example, due to the high insulation level requirement of the existing switch cabinet, domestic metal-enclosed switchgear is basically used as the switch cabinet frame, and SF6(gas) is used as the insulating medium. In order to ensure that the SF6 gas in the switch cabinet does not leak, the switch cabinet adopts a metal-enclosed box body with high airtightness. The circuit breaker moving device in the prior art cannot push the circuit breaker into the switch cabinet, resulting in a great safety hazard for workers. SUMMARY

[0004] The utility model aims at providing a circuit breaker hoisting device, which can more stably and safely complete the operation process of pushing the circuit breaker into the switch cabinet.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The circuit breaker hoisting device comprises:

[0007] The hoisting beam is connected to the output end of the hoisting device.

[0008] The traction assembly is provided with two, which comprises a first hoisting plate and a flexible hoisting structure. The flexible hoisting structure is in the shape of a long strip, one end of which is detachably arranged on the hoisting beam, and the other end is detachably connected to the first hoisting plate. The first hoisting plate comprises a first connecting part and a second connecting part arranged at an angle to each other. The first connecting part and the second connecting part can be fitted and locked on the outer circumferential side of the 40.5kV circuit breaker base frame.

[0009] The positioning screw sleeve can be screwed on the welding stud of the 40.5kV circuit breaker base frame when the welding stud protrudes from the switch cabinet.

[0010] As a preferred, the flexible hoisting structure comprises:

[0011] The hoisting cable is configured of flexible material.

[0012] Two connecting buckles are connected to the two ends of the hoisting cable in one-to-one correspondence, one of the connecting buckles is detachably connected to the hoisting beam, and the other connecting buckle is detachably connected to the first hoisting plate.

[0013] As a preferred, each of the connecting buckles is detachably provided with a locking pin shaft, the hoisting beam is provided with an eye at both ends, and the two locking pin shafts are correspondingly arranged through the eye and the first connecting part.

[0014] As a preferred, the first connecting part is provided with a plurality of hoisting holes in the horizontal direction and the vertical direction, and the locking pin shaft can pass through any hoisting hole.

[0015] As a preferred, the middle position of the hoisting beam is detachably provided with a hoisting ring, and the output end of the hoisting device can be hooked on the hoisting ring.

[0016] As a preferred, the two traction assemblies are symmetrically arranged about the hoisting ring.

[0017] As a preferred, it further comprises:

[0018] A second hoisting plate, when the first hoisting plate is detached from the flexible hoisting structure, the second hoisting plate can be detachably connected to the flexible hoisting structure, and the second hoisting plate can be attached to the outer circumferential side of the 12kV circuit breaker.

[0019] A locking member configured to lock the second hoisting plate to the outer circumferential side of the 12kV circuit breaker.

[0020] As a preferred, the locking member is spaced apart in the vertical direction.

[0021] As a preferred, it further comprises a lifting ring screw, one end of the lifting ring screw is provided with a thread, and the other end is provided with a traction ring, the lifting ring screw is configured to pass through the second connecting part and the 40.5kV circuit breaker base in sequence, and the output end of the hoisting device can be hooked on the traction ring.

[0022] As a preferred, the first connecting part and the second connecting part are arranged at an angle of 90 degrees.

[0023] The utility model discloses the beneficial effects of:

[0024] The hoisting beam and the traction assembly cooperate to hoist the circuit breaker in the vertical direction, the first hoisting plate is designed for the 40.5kV circuit breaker base, and the first connecting part and the second connecting part can be attached and locked on the outer circumferential side of the 40.5kV circuit breaker base to ensure the connection strength; and the flexible hoisting structure can offset the shearing effect of the inertial force of the circuit breaker on the hoisting beam to a certain extent during the horizontal movement of the circuit breaker, and the structure is more durable and safer; for the 40.5kV circuit breaker base, when the welding stud protrudes from the switch cabinet, the positioning sleeve is screwed on the welding stud to complete positioning, one worker prevents the circuit breaker from swinging by the flexible hoisting structure, and another worker fastens the welding studs that are not screwed with the positioning sleeve one by one, so that the circuit breaker is completely fixed in the monitoring switch cabinet, then the positioning sleeve is removed, and the welding studs at the corresponding positions are fastened, so that the transfer work of the circuit breaker is completed, the positioning sleeve can be repeatedly used, the operation steps are simple, and the reliability is high. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic view of the circuit breaker hoisting device of the utility model;

[0026] Figure 2 is a structural schematic view of the circuit breaker hoisting device of the utility model when hoisting the 40.5kV circuit breaker;

[0027] Figure 3 is a structural schematic view of the circuit breaker hoisting device of the utility model when moving the 40.5kV circuit breaker into the switch cabinet;

[0028] Figure 4 is a structural schematic view of the second hoisting plate of the utility model;

[0029] Figure 5 is a structural schematic view of the circuit breaker hoisting device of the utility model when hoisting the 12kV circuit breaker;

[0030] Figure 6 is a structural section view of the positioning sleeve of the utility model.

[0031] In the drawing:

[0032] 100, 40.5kV circuit breaker base; 101, welding stud;

[0033] 1, hoisting beam; 11, lifting lug; 12, hoisting ring;

[0034] 2, traction assembly; 21, first hoisting plate; 211, first connecting part; 2110, hoisting hole; 212, second connecting part; 22, flexible hoisting structure; 221, hoisting rope; 222, connecting buckle; 2221, locking pin shaft; 23, second hoisting plate; 24, locking piece;

[0035] 3. A positioning screw sleeve;

[0036] 4. A lifting eye screw. DETAILED DESCRIPTION

[0037] Embodiments of the present application will be described in detail below with reference to the drawings, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present application, and should not be understood as limiting the present application.

[0038] In the description of the present application, unless explicitly defined and limited otherwise, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] In the description of the present application, unless explicitly defined and limited otherwise, the first feature "on" or "below" the second feature can include the first feature and the second feature directly contacting, or the first feature and the second feature not directly contacting but contacting through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0040] The technical scheme of the present application will be further illustrated below by combining the drawings and through specific embodiments.

[0041] As Figures 1-6The utility model provides a circuit breaker hoist device for hoisting circuit breaker. The circuit breaker hoist device comprises a hoisting beam 1, a traction assembly 2 and a positioning screw sleeve 3. The hoisting beam 1 is connected to the output end of a hoisting device; the traction assembly 2 is provided with two, and the traction assembly 2 comprises a first hoisting plate 21 and a flexible hoisting structure 22; the flexible hoisting structure 22 is in the shape of a strip, and one end is detachably arranged on the hoisting beam 1, and the other end is detachably connected to the first hoisting plate 21; the first hoisting plate 21 comprises a first connecting part 211 and a second connecting part 212 arranged at an angle to each other; the first connecting part 211 and the second connecting part 212 can be fitted and locked to the outer circumferential side of the 40.5kV circuit breaker base frame 100; when the welding stud 101 of the 40.5kV circuit breaker base frame 100 protrudes from the switch cabinet, the positioning screw sleeve 3 can be screwed to the welding stud 101.

[0042] The hoisting beam 1 and the traction assembly 2 cooperate with each other to hoist the circuit breaker in the vertical direction; the first hoisting plate 21 is designed for the 40.5kV circuit breaker base frame 100; the first connecting part 211 and the second connecting part 212 can be fitted and locked to the outer circumferential side of the 40.5kV circuit breaker base frame 100 to ensure the connection strength; the flexible hoisting structure 22 can offset the inertial force of the circuit breaker itself on the hoisting beam 1 to a certain extent during the horizontal movement of the circuit breaker, so that the structure is more durable and safer; for the 40.5kV circuit breaker base frame 100, when the welding stud 101 protrudes from the switch cabinet, the positioning screw sleeve 3 is screwed to the welding stud 101 to complete positioning; one worker uses the flexible hoisting structure 22 to prevent the circuit breaker from swinging, and another worker tightens the welding studs 101 that are not screwed with the positioning screw sleeve 3 one by one, so that the circuit breaker is completely fixed in the monitoring switch cabinet; then the positioning screw sleeve 3 is removed, and the welding studs 101 at the corresponding positions are supplemented and tightened, thereby completing the transfer operation of the circuit breaker; the positioning screw sleeve 3 can be reused, the operation steps are simple, and the reliability is high.

[0043] Exemplarily, in the embodiment, the positioning screw sleeve 3 is a screw sleeve structure commonly used in the field, and the specific structure is not described here.

[0044] Specifically, the flexible hoisting structure 22 comprises a hoisting cable 221 and two connecting buckles 222. The hoisting cable 221 is configured to be flexible; the two connecting buckles 222 are connected to the two ends of the hoisting cable 221 one by one, one connecting buckle 222 is detachably connected to the hoisting beam 1, and the other connecting buckle 222 is detachably connected to the first hoisting plate 21. The above-mentioned arrangement can offset the inertial force of the circuit breaker during the horizontal transfer process through the flexible material of the hoisting cable 221, thereby improving the durability of the overall structure to a certain extent; the arrangement of the connecting buckle 222 can realize the detachable connection of the flexible hoisting structure 22 with the hoisting beam 1 and the first hoisting plate 21.

[0045] Specifically, the circuit breaker hoisting device further comprises a second hoisting plate 23 and a locking member 24. When the first hoisting plate 21 is detached from the flexible hoisting structure 22, the second hoisting plate 23 can be detachably connected to the flexible hoisting structure 22, and the second hoisting plate 23 can be attached to the outer circumferential side of the 12kV circuit breaker. The locking member 24 is configured to lock the second hoisting plate 23 to the outer circumferential side of the 12kV circuit breaker. The provision of the second hoisting plate 23 makes the circuit breaker hoisting device also applicable to the 12kV circuit breaker, and has strong versatility.

[0046] Specifically, the locking member 24 is spaced apart in the vertical direction. The above arrangement ensures the connection strength of the second hoisting plate 23 and the outer circumferential side of the 12kV circuit breaker, and also optimizes the load distribution at different positions of the second hoisting plate 23, thereby improving stability and durability.

[0047] Exemplarily, in the present embodiment, the material of the hoisting rope 221 can refer to the flexible material commonly used in the art, which is not limited here.

[0048] More specifically, each connecting buckle 222 is detachably provided with a locking pin 2221, and the two ends of the hoisting beam 1 are provided with lifting lugs 11, and the two locking pins 2221 are correspondingly arranged through and abut against the lifting lugs 11 and the first connecting part 211. The provision of the locking pin 2221 facilitates disassembly, has low production cost, simple structure and easy operation.

[0049] Exemplarily, in the present embodiment, the lifting lug 11 is detachably connected to the hoisting beam 1 by a bolt structure, which ensures the bearing capacity and facilitates replacement.

[0050] Exemplarily, in the present embodiment, the connecting buckle 222 comprises a U-shaped hook, the locking pin 2221 is screwed at the opening of the U-shaped hook, and the hoisting rope 221 is hooked on the U-shaped hook.

[0051] Specifically, the first connecting part 211 is provided with a plurality of hoisting holes 2110 in the horizontal direction and the vertical direction, and the locking pin 2221 can pass through any hoisting hole 2110. The above arrangement ensures the connection strength, facilitates the adjustment of the position of the locking pin 2221, and is applicable to circuit breakers of different models, thereby having strong versatility.

[0052] Specifically, the circuit breaker hoisting device further comprises a lifting ring screw 4, one end of the lifting ring screw 4 is provided with a thread, and the other end is provided with a traction ring. The lifting ring screw 4 is configured to pass through the second connecting part 212 and the 40.5kV circuit breaker base 100 in sequence, and the output end of the hoisting device can be hooked on the traction ring.

[0053] Specifically, the first connecting part 211 and the second connecting part 212 are arranged at a 90-degree angle. The arrangement enables the first connecting part 211 and the second connecting part 212 to completely fit the outer circumferential side of the 40.5kV circuit breaker base frame 100.

[0054] More specifically, the middle position of the hoisting beam 1 is detachably provided with a hoisting ring 12, and the output end of the hoisting device can be hooked on the hoisting ring 12. The arrangement facilitates the connection of the output end of the hoisting device and the hoisting beam 1.

[0055] Illustratively, the hoisting ring 12 is provided with multiple hoisting rings of different sizes, and each hoisting ring can be detachably connected to the hoisting beam 1 through a bolt structure. The hoisting ring 12 can be replaced according to different types of hoisting devices, and the hoisting ring 12 is highly versatile.

[0056] Preferably, in the embodiment, the two traction assemblies 2 are symmetrically arranged about the hoisting ring 12. The arrangement enables the moment of the two traction assemblies 2 at the position of the hoisting ring 12 to be balanced with each other, preventing overturning during hoisting, and the stability is high, and the safety is higher.

[0057] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to exhaust all the embodiments. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model claims.

Claims

1. A circuit breaker lifting device, characterized in that, include: The hoisting beam (1) is connected to the output end of the hoisting device; Two traction components (2) are provided. The traction component (2) includes a first lifting plate (21) and a flexible lifting structure (22). The flexible lifting structure (22) is long and strip-shaped, and one end is detachably mounted on the lifting beam (1), and the other end is detachably connected to the first lifting plate (21). The first lifting plate (21) includes a first connecting part (211) and a second connecting part (212) arranged at an angle to each other. Both the first connecting part (211) and the second connecting part (212) can fit and lock onto the outer periphery of the 40.5kV circuit breaker base frame (100). Positioning screw sleeve (3) is used when the welding stud (101) of the 40.5kV circuit breaker base frame (100) extends out of the switch cabinet. The positioning screw sleeve (3) can be screwed to the welding stud (101).

2. The circuit breaker lifting device according to claim 1, characterized in that, The flexible hoisting structure (22) includes: The lifting cable (221) is configured as a flexible material; Two connecting buckles (222) are connected to the two ends of the lifting cable (221) in a one-to-one correspondence. One of the connecting buckles (222) is detachably connected to the lifting beam (1), and the other connecting buckle (222) is detachably connected to the first lifting plate (21).

3. The circuit breaker lifting device according to claim 2, characterized in that, Each of the connecting buckles (222) is detachably provided with a locking pin (2221). Both ends of the lifting beam (1) are provided with lifting lugs (11). The two locking pins (2221) are inserted one-to-one and abut against the lifting lugs (11) and the first connecting part (211).

4. The circuit breaker lifting device according to claim 3, characterized in that, The first connecting part (211) has multiple lifting holes (2110) in both the horizontal and vertical directions, and the locking pin (2221) can pass through any one of the lifting holes (2110).

5. The circuit breaker lifting device according to claim 1, characterized in that, A lifting ring (12) is detachably provided at the middle position of the lifting beam (1), and the output end of the lifting device can be hooked onto the lifting ring (12).

6. The circuit breaker lifting device according to claim 5, characterized in that, The two traction components (2) are symmetrically arranged about the lifting ring (12).

7. The circuit breaker lifting device according to claim 1, characterized in that, Also includes: The second lifting plate (23) is detachably connected to the flexible lifting structure (22) when the first lifting plate (21) is disassembled from the flexible lifting structure (22). The second lifting plate (23) can be attached to the outer periphery of the 12kV circuit breaker. The locking element (24) is configured to lock the second lifting plate (23) to the outer periphery of the 12kV circuit breaker.

8. The circuit breaker lifting device according to claim 7, characterized in that, The locking element (24) is provided in multiple intervals along the vertical direction.

9. The circuit breaker lifting device according to any one of claims 1-8, characterized in that, It also includes an eye bolt (4), one end of which is threaded and the other end is provided with a traction ring. The eye bolt (4) is configured to pass through the second connection part (212) and the 40.5kV circuit breaker base frame (100) in sequence, and the output end of the lifting device can be hooked on the traction ring.

10. The circuit breaker lifting device according to any one of claims 1-8, characterized in that, The first connecting part (211) and the second connecting part (212) are arranged at a 90-degree angle.

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