CN214828312U

CN214828312U - Large-scale current transformer lifting device

Info

Publication number: CN214828312U
Application number: CN202121179738.0U
Authority: CN
Inventors: 罗海成; 李广山; 秦继伟; 崔佳楠
Original assignee: Huaneng Yimin Coal and Electricity Co Ltd
Current assignee: Huaneng Yimin Coal and Electricity Co Ltd
Priority date: 2021-05-30
Filing date: 2021-05-30
Publication date: 2021-11-23
Anticipated expiration: 2031-05-30

Abstract

Large-scale current transformer lifting device. The conventional 220kV current transformer hoists and utilizes the indoor isolation switch cement pillar as a hoisting point, and uses a chain block and a steel wire rope to hoist, so that the danger coefficient is large, if the hoisting point is not properly selected, the steel wire rope is extremely easy to break, the hoisted object falls into hidden danger, meanwhile, the field arrangement and hoisting operation time is long, and the labor amount of personnel is large. The utility model discloses the constitution includes: frame (1), the face of the lower part is pi type support body about the frame, and the centre is connected through 4 channel steels, every processing has a set of adjustment hole (2) on the channel steel, the screw thread is attacked to the adjustment hole, the welding of the upper portion pi type support body lower part of frame has a set of lug (3), installation has iron bar (4) of screw thread in the adjustment hole, rotation handle (5) are connected to iron bar one end, and fixture (6) are connected to the other end, fixture use flexible rubber coating parcel. The utility model is used for the hoist and mount of large-scale current transformer use during the rising.

Description

Large-scale current transformer lifting device

Technical Field

The utility model particularly relates to a large-scale current transformer lifting device.

Background

At present, the inside of a 220kV large current transformer has an insulation damp defect, and can be developed into insulation breakdown to cause equipment damage and faults when the insulation damp defect is serious, so that the safe and reliable operation of a power grid system is influenced, and therefore the fault transformer needs to be replaced. The conventional 220kV current transformer is hoisted by utilizing an indoor isolation switch cement pillar as a hoisting point and using a chain block and a steel wire rope for hoisting, so that the danger coefficient is large, if the hoisting point is not properly selected, the steel wire rope is easy to wear and break, hoisting objects fall hidden dangers, meanwhile, the field arrangement and hoisting operation time is long, and the labor amount of personnel is large. Because the mutual inductor is arranged on an indoor cement foundation, a lifting point is not arranged above the mutual inductor, a large-sized vehicle cannot enter to bring difficulty for replacing and lifting, and the outer surface of the mutual inductor is insulated by adopting porcelain, so that the mutual inductor is insulated and damaged if colliding with the transformer during installation and removal, and the mutual inductor can be broken and cannot be repaired when the mutual inductor is serious.

Disclosure of Invention

The utility model aims at providing a large-scale current transformer lifting device.

The above purpose is realized by the following technical scheme:

a large-scale current transformer lifting device comprises: the frame, the face of the lower part is pi type support body about the frame, and the centre is connected through 4 channel steels, every processing has a set of adjustment hole on the channel steel, the screw thread is attacked to the adjustment hole, the lower part welding of the pi type support body in frame upper portion has a set of lug, the installation has the iron bar of screw thread in the adjustment hole, the handle is rotated in the connection of iron bar one end, and other end connection fixture, fixture uses flexible rubber coating parcel.

Has the advantages that:

the utility model relates to a large-scale current transformer lifting device, install chain block in the lug respectively before the current transformer dismouting, utilize fork truck will pitch the chi and insert in the square steel of II type support body in lifting device lower part, remove fork truck to around the current transformer, make lifting device embrace the current transformer that needs hoist and mount, utilize chain block and current transformer lower part body hoisting point to be connected, adjustment lifting device upper portion iron bar, make fixture fixing clip dead current transformer upper portion, current transformer rocks when avoiding hoist and mount, demolish current transformer and basic connecting bolt, taut chain block, make mutual-inductor and basic separation, finally utilize fork truck to demolish the mutual-inductor. The utility model discloses simple structure is reliable, and the practicality is strong, utilizes lifting device at the installation, demolish in-process protection current transformer, avoids the mutual-inductor insulation damaged.

Description of the drawings:

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a left side view of FIG. 2;

in the figure: 1. a frame; 2. an adjustment hole; 3. lifting lugs; 4. an iron rod; 5. rotating the handle; 6. a fixture.

The specific implementation mode is as follows:

example 1:

a large-scale current transformer lifting device comprises: the device comprises a frame 1, wherein the upper surface and the lower surface of the frame are n-shaped frame bodies, the middle parts of the frame are connected through 4 channel steels, each channel steel is processed with a group of adjusting holes 2, the adjusting holes tap screw teeth, the lower part of the n-shaped frame body at the upper part of the frame is welded with a group of lifting lugs 3, an iron rod 4 with the screw teeth is installed in each adjusting hole, one end of each iron rod is connected with a rotating handle 5, the other end of each iron rod is connected with a clamp 6, and each clamp is wrapped by a flexible rubber sheet;

the manufacturing steps are as follows: manufacturing one metal framework with the length and width of 1.2 meters and the height of 3 meters, wherein the upper surface and the lower surface of the framework are n-shaped, each side is 1.2 meters, square steel with the diameter of 0.15 meter is adopted for welding, lifting lugs with the diameter of 0.04 meter are welded at the lower parts of 4 corners of the n-shaped framework, 4 channel steel with the diameter of 0.15 meter and the length of 3 meters are welded with the four corners of the n-shaped framework, the hole distance of the upper part of each channel steel is 0.05 meter, 3 adjusting holes with the diameter of 0.05 meter are manufactured in the adjusting holes, tapping is carried out in the adjusting holes, threaded parts are manufactured, the diameter of 0.05 meter and the length of 4 iron rods with the length of 1.2 meters, rotating handles and clamping tools are respectively and additionally arranged on the two sides of the iron rods, the clamping tools are wrapped by flexible rubber sheets, and the iron rods are inserted into the adjusting holes.

Claims

1. A large-scale current transformer lifting device comprises: the frame, characterized by: the frame is characterized in that the upper surface and the lower surface of the frame are n-shaped frame bodies, the middle of the frame is connected with the frame through 4 channel steels, a group of adjusting holes are machined in each channel steel and used for tapping screw teeth, a group of lifting lugs are welded on the lower portion of the n-shaped frame body on the upper portion of the frame, an iron rod with the screw teeth is installed in each adjusting hole, one end of each iron rod is connected with a rotating handle, the other end of each iron rod is connected with a clamp, and each clamp is wrapped by a flexible rubber sheet.