Transformer box cover rising and falling and transformer body overhauling device

Abstract

A transformer box cover rising and falling and transformer body overhauling device comprises a transformer box body, a top cover is arranged at the top of the transformer box body, a plurality of first connecting lugs are arranged on the two sides of the top cover, second connecting lugs are arranged below the first connecting lugs, and the second connecting lugs are fixedly connected to the side wall of the transformer box body; a jacking device is arranged at the bottom of the second connecting lug, and a telescopic part of the jacking device penetrates through the second connecting lug and is connected with the bottom of the first connecting lug. The technical problem to be solved by the utility model is to provide the transformer box cover rising and falling and transformer body overhauling device which adopts a jacking form instead of a hoisting form to open a transformer top cover for overhauling.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer maintenance, in particular to a transformer box cover lifting and lowering and transformer body maintenance device. Background Art

[0002] In the past, outdoor transformers were overhauled by lifting the cover with a crane, which not only had high construction risks, was difficult and labor-intensive, but also could not lift and lower the cover smoothly, accurately and quickly. Once it rained suddenly, the cover could not be reinstalled in time, causing water to enter the transformer and the body to get damp. There was also the risk of the crane losing control. Since the transformer room is basically not equipped with the conditions for lifting the cover, lifting the cover outside the transformer for maintenance will not only greatly increase the workload, but also bring other related operational risks. Even if the cover can be lifted from the rooftop lifting point for maintenance, new safety risks and other problems will arise due to the small space.

[0003] In order to effectively improve the transformer operation technology and eliminate the adverse factors of lifting cover maintenance, except for special circumstances such as lifting the core and dismantling the body for maintenance, the corresponding lifting and lowering devices should be used as much as possible to lift the box cover and complete the body maintenance at the operating station, so as to effectively reduce the related operation risks, workload and construction difficulty, and improve the corresponding work efficiency. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a transformer box cover lifting and body maintenance device, which adopts the form of jacking to replace the form of hoisting, and opens the transformer box cover for maintenance.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a transformer box cover lifting and lowering and body maintenance device, including a transformer box, a top cover is provided on the top of the transformer box, a plurality of first connecting ears are provided on both sides of the top cover, a second connecting ear is provided below the first connecting ear, and the second connecting ear is fixedly connected to the side wall of the transformer box; a jacking device is provided at the bottom of the second connecting ear, and the telescopic part of the jacking device passes through the second connecting ear and is connected to the bottom of the first connecting ear.

[0006] Preferably, a plurality of inspection openings are provided on the top cover.

[0007] Preferably, a crossbeam is provided above the top cover, and a gourd is slidably connected to the crossbeam.

[0008] Preferably, a plurality of longitudinal beams are fixedly provided above the top cover, and the transverse beams are slidably connected to the longitudinal beams via sliding sleeves.

[0009] Preferably, both ends of the longitudinal beam are fixedly connected to the upper end of the connecting seat, and the bottom of the connecting seat is fixedly connected to the first connecting ear.

[0010] The utility model provides a transformer box cover lifting and lowering and transformer body maintenance device, which has the following beneficial effects:

[0011] 1. The multiple lifting devices of this device can be symmetrically arranged to lift the transformer cover synchronously at a uniform speed, which can avoid shaking of the cover and ensure the quality of seal replacement. It can also fall back quickly to effectively prevent sudden rain from causing water ingress and moisture in the transformer.

[0012] 2. This device occupies a small space and is easy to disassemble and operate. It can make full use of the on-site space and complete the cover lifting maintenance at the transformer operating station. The relevant devices on the top of the oil tank can be used to replace components such as tap changers, effectively reducing the risk, difficulty and workload of the transformer body maintenance operation.

[0013] 3. This device not only effectively improves the transformer maintenance technology, but also effectively solves the technical problems of lifting and lowering the transformer cover in a narrow and enclosed space, as well as the maintenance of the transformer body and replacement of the main seal. It is novel, innovative and practical, and can be promoted and applied not only to the maintenance of various bell-shaped oil tank transformers, but also to the lifting and lowering of the transformer low-voltage connection box cover and the replacement of the seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0016] like Figure 1 As shown, a transformer box cover lifting and lowering and transformer body maintenance device comprises a transformer box 1, a top cover 2 is arranged on the top of the transformer box 1, a plurality of first connecting ears 3 are arranged on both sides of the top cover 2, a second connecting ear 4 is arranged below the first connecting ear 3, and the second connecting ear is fixedly connected to the side wall of the transformer box 1; a lifting device 5 is arranged at the bottom of the second connecting ear 4, and the telescopic part of the lifting device 5 passes through the second connecting ear 4 and is connected to the bottom of the first connecting ear 3. After the top cover 2 is lifted, the inside of the transformer box can be repaired, and the lifting device is a jack.

[0017] Preferably, a plurality of inspection openings 6 are provided on the top cover 2. For the convenience of inspection, the inspection openings are provided on the top cover 2, and the inspection openings can be connected by flanges and flange covers are provided.

[0018] Preferably, a crossbeam 7 is provided above the top cover 2, and a hoist 8 is slidably connected to the crossbeam 7. The maintenance equipment on the ground is hoisted through the inspection opening.

[0019] Preferably, a plurality of longitudinal beams 9 are fixedly provided above the top cover 2, and the cross beam 7 is slidably connected to the longitudinal beam 9 through a sliding sleeve 10. It is convenient to adjust the position of the cross beam to meet the lifting requirements at different positions.

[0020] Preferably, both ends of the longitudinal beam 9 are fixedly connected to the upper end of the connecting seat 11 , and the bottom of the connecting seat 11 is fixedly connected to the first connecting ear 3 .

[0021] When in use, after connecting the jacking device, start the jacking device to lift the top cover 2, and personnel can enter the main transformer box for maintenance, slide the hoist 8 to the maintenance port, and move the maintenance equipment from between the top cover and the box into the transformer box. During the lifting process, the staff can pull the lifted equipment on the ground to prevent the equipment from colliding with the transformer box.

[0022] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A transformer cover lifting and lowering and transformer body maintenance device, comprising a transformer box (1), a top cover (2) being arranged on the top of the transformer box (1), characterized in that: A plurality of first connecting ears (3) are provided on both sides of the top cover (2); a second connecting ear (4) is provided below the first connecting ear (3); the second connecting ear is fixedly connected to the side wall of the transformer box (1); a lifting device (5) is provided at the bottom of the second connecting ear (4); a telescopic portion of the lifting device (5) passes through the second connecting ear (4) and is connected to the bottom of the first connecting ear (3).

2. According to claim 1, a transformer cover lifting and lowering and transformer body maintenance device is characterized in that: The top cover (2) is provided with a plurality of inspection openings (6).

3. A transformer cover lifting and lowering and transformer body maintenance device according to claim 2, characterized in that: A crossbeam (7) is provided above the top cover (2), and a hoist (8) is slidably connected to the crossbeam (7).

4. A transformer cover lifting and lowering and transformer body maintenance device according to claim 3, characterized in that: A plurality of longitudinal beams (9) are fixedly provided above the top cover (2), and the transverse beams (7) are slidably connected to the longitudinal beams (9) via sliding sleeves (10).

5. A transformer cover lifting and lowering and transformer body maintenance device according to claim 4, characterized in that: The two ends of the longitudinal beam (9) are fixedly connected to the upper end of the connecting seat (11), and the bottom of the connecting seat (11) is fixedly connected to the first connecting ear (3).

Images