Upright fixing device for high-voltage bushing of transformer

Abstract

The utility model provides a transformer high-voltage bushing upright fixing device which comprises a lifting jack and a guide jack, the lifting jack and the guide jack are fixed between a bottom ring and a middle ring, a climbing ring is installed on an outer cylinder of the lifting jack through a bolt, a connecting plate is arranged on the inner diameter of the middle ring, and the connecting plate is connected with the lifting jack through a bolt. The top end of the connecting plate is connected with an upper end ring, a sleeve flange plate is arranged in the middle of the upper end ring, a flange casing pad is installed on the upper surface of the sleeve flange plate, and a plurality of movable wheel discs are evenly distributed on the outer side wall of the bottom ring. According to the utility model, the defects and deficiencies of a common steel bracket are eliminated, and the safety risk of related operation is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer maintenance equipment, in particular to a vertical fixing device for a high-voltage bushing of a transformer. Background Technique

[0002] The height and weight of a large high-voltage bushing of a transformer are generally below 2t, and the height is generally between 4 meters and 7 meters, and the length below the installation flange of the bushing is generally within 2 meters. When overhauling or testing the high-voltage bushing, it is necessary to vertically fix the bushing. Since the integrated bushing fixing steel bracket used in the past was as high as 2.5 meters, it could neither adjust the height nor replace the bushing fixing flange. It not only lacked versatility, but also had great difficulty in moving and climbing. It often required a crane for handling, and there were certain safety risks in moving the bracket up and down and moving it. In order to ensure the safe, efficient and convenient vertical fixing of the high-voltage bushing of the transformer and safely carry out the overhaul and test of the bushing, it is necessary to design a large high-voltage bushing module vertical fixing device that can be lifted, freely moved and easily climbed.

[0003] Therefore, there is an urgent need for a vertical fixing device for a high-voltage bushing of a transformer to solve the above problems. Summary of the Invention

[0004] The purpose of the utility model is to overcome the above deficiencies and provide a vertical fixing device for a high-voltage bushing of a transformer to solve the problems raised in the background technique.

[0005] The utility model, in order to solve the above technical problems, the technical solution adopted is: a vertical fixing device for a high-voltage bushing of a transformer, including a lifting jack and a guiding jack. The lifting jack and the guiding jack are fixed between the bottom ring and the middle ring. A climbing ring is installed on the outer cylinder of the lifting jack through bolts. A connecting plate is provided inside the inner diameter of the middle ring. The top end of the connecting plate is connected to the upper end ring. A bushing flange is provided on the upper end ring. A flange guard cylinder pad is installed on the upper surface of the bushing flange. A plurality of moving wheel discs are evenly distributed on the outer side wall of the bottom ring.

[0006] Preferably, a limiting hole is provided on the middle ring, and the middle ring, the connecting plate and the upper end ring are of an integral structure.

[0007] Preferably, a lifting end is provided at the top of the lifting jack. The top plate of the lifting end is in contact with the lower surface of the middle ring. The top end of the guiding jack is sleeved in the limiting hole of the middle ring.

[0008] Preferably, a universal wheel is installed at the lower part of the moving wheel disc.

[0009] Preferably, three climbing ladders are provided on the body of the climbing ring. The climbing ladders are arranged at an interval of 120°. Handrail columns are provided between the climbing ladders.

[0010] Preferably, a handrail column is provided on the upper surface of the movable roulette. A plurality of rectangular holes are provided on the surface of the handrail column, and U-shaped handrails are provided on both sides of the handrail column.

[0011] Preferably, the casing flange is a replaceable structure of multiple different specifications. It can transport small high-voltage casings with a height below 2 meters and low-voltage large-current casings.

[0012] Preferably, the casing flange can be replaced with a tray 8 as needed. After installing the supporting tray, it can also be used as a transporter for other equipment.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model eliminates the disadvantages and deficiencies of ordinary steel brackets, and effectively reduces the safety risks of related operations;

[0015] 2. The fixed flange of the casing of the utility model can be conveniently replaced and the height is adjustable, so it has strong versatility. It can not only meet the needs of upright fixation of various high-voltage casings, but also meet the needs of upright fixation of low-voltage large-current casings;

[0016] 3. The utility model is convenient to move, and can transport small high-voltage casings with a height below 2 meters and low-voltage large-current casings. After installing the supporting tray, it can also be used as a transporter for other equipment;

[0017] 4. The utility model is fixed reliably, safe to climb, with standardized protection, and is convenient for disassembly, assembly and storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the utility model;

[0019] Figure 2 is a schematic diagram of the working state of fixing the low-voltage large-current casing of the utility model;

[0020] Figure 3 is a schematic diagram of the working state of fixing the small high-voltage casing of the utility model. DETAILED DESCRIPTION OF THE INVENTION

[0021] The following further describes the utility model with reference to the drawings and embodiments:

[0022] See Figures 1 to 3, A vertical fixing device for a high-voltage bushing of a transformer, comprising a lifting jack 1 and a guiding jack 2. The lifting jack 1 and the guiding jack 2 are fixed between a bottom ring 3 and an intermediate ring 4. A climbing ring 6 is installed on the outer cylinder of the lifting jack 1 through a bolt 6.1. A connecting plate 4.1 is provided on the inner diameter of the intermediate ring 4. The top end of the connecting plate 4.1 is connected to an upper end ring 5. A bushing flange 7 is provided on the upper end ring 5. A flange guard cylinder pad 10 is installed on the upper surface of the bushing flange 7. A plurality of moving wheel discs 9 are evenly distributed on the outer side wall of the bottom ring 3.

[0023] Preferably, a limiting hole 4.2 is provided on the intermediate ring 4, and the intermediate ring 4, the connecting plate 4.1 and the upper end ring 5 are of an integral structure.

[0024] Preferably, a lifting end 1.1 is provided at the top of the lifting jack 1. The top plate of the lifting end 1.1 is in contact with the lower surface of the intermediate ring 4. The top end of the guiding jack 2 is sleeved in the limiting hole 4.2 of the intermediate ring 4.

[0025] Preferably, a universal wheel 9.1 is installed at the lower part of the moving wheel disc 9, which is used to support the moving bushing fixing device.

[0026] Preferably, three climbing ladders 6.3 are provided on the body of the climbing ring 6. The climbing ladders 6.3 are arranged at an interval of 120°. Handrail columns 6.2 are provided between the climbing ladders 6.3. Operators can climb up and down through the climbing ring and work safely standing on the climbing ring.

[0027] Preferably, handrail columns 6.2 are provided on the upper surface of the moving wheel disc 9. A plurality of rectangular holes are provided on the surface of the handrail columns 6.2. U-shaped handrails 6.2.1 are provided on both sides of the handrail columns 6.2, which are convenient for operators to hold when climbing up and down the ladder, increasing safety.

[0028] Preferably, the bushing flange 7 is a replaceable structure of multiple different specifications and can be conveniently replaced according to the requirements of the bushing size.

[0029] Preferably, the bushing flange 7 can be replaced with a tray 8 as needed. This device can also fix and transport the low-voltage large-current bushing of the transformer. The tray is installed on the upper end ring, and the support device can be used as an equipment transport vehicle.

[0030] The working principle of this embodiment is as follows:

[0031] When overhauling the casing, select the specifications of the casing flange and the flange sleeve gasket according to the casing size, move the turntable to adjust the device to a horizontal state, then lift and lower the jacks and the guiding jacks so that the height of the casing flange from the ground is greater than the length of the lower section of the casing. Then, lift the casing into the support device by a crane or a bridge crane, etc., and securely fix the casing on the corresponding casing flange with bolts for overhaul and testing. The operators can climb up and down through the climbing rings and work safely standing on the climbing rings. In addition, this device can also fix and transport the low-voltage large-current casing of the transformer, and install the tray on the upper ring. The support device can be used as an equipment transport vehicle.

[0032] The above embodiments are only the preferred technical solutions of the present invention and should not be regarded as limitations on the present invention. The protection scope of the present invention should be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, the equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A transformer high-voltage bushing upright fixing device, comprising a lifting jack (1) and a guide jack (2), characterized in that: The lifting jack (1) and the guide jack (2) are fixed between the bottom ring (3) and the intermediate ring (4); a climbing ring (6) is installed on the outer cylinder of the lifting jack (1) by means of bolts (6.1); a connecting plate (4.1) is provided on the inner diameter of the intermediate ring (4); the top of the connecting plate (4.1) is connected to the upper ring (5); a sleeve flange (7) is provided on the upper ring (5); a flange casing gasket (10) is installed on the upper surface of the sleeve flange (7); and a plurality of movable wheels (9) are evenly distributed on the outer wall of the bottom ring (3).

2. A transformer high voltage bushing upright fixing device according to claim 1, characterized in that: The intermediate ring (4) is provided with a limiting hole (4.2), and the intermediate ring (4), the connecting plate (4.1) and the upper end ring (5) are an integrated structure.

3. A transformer high voltage bushing upright fixing device according to claim 1, characterized in that: The lifting jack (1) is provided with a lifting end (1.1) at the top, the top plate of the lifting end (1.1) is in contact with the lower surface of the intermediate ring (4), and the top end of the guide jack (2) is sleeved in the limiting hole (4.2) of the intermediate ring (4).

4. A transformer high voltage bushing upright fixing device according to claim 1, characterized in that: A universal wheel (9.1) is installed at the lower part of the movable wheel disc (9).

5. A transformer high voltage bushing upright fixing device according to claim 1, characterized in that: The climbing ring (6) is provided with three ladders (6.3) on its ring body. The ladders (6.3) are arranged at intervals of 120°, and handrail columns (6.2) are provided between the ladders (6.3).

6. A transformer high voltage bushing upright fixing device according to claim 1, characterized in that: The upper surface of the movable wheel disc (9) is provided with a handrail column (6.2), the surface of the handrail column (6.2) is provided with a plurality of rectangular holes, and two sides of the handrail column (6.2) are provided with U-shaped handrails (6.2.1).

7. A transformer high voltage bushing upright fixing device according to claim 1, characterized in that: The sleeve flange (7) is a replaceable structure with multiple different specifications.

8. A transformer high voltage bushing upright fixing device according to claim 1, characterized in that: The sleeve flange (7) can be replaced with a tray (8) as required.

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