Large-current sleeve dismounting device

Abstract

A large-current sleeve dismounting device comprises supports located on the two sides, guide rods are arranged on the inner sides of the supports, lifting rods are arranged on the guide rods in a sleeving mode, and the large-current sleeve dismounting device further comprises a lead screw used for driving the lifting rods to move up and down. A transverse rod is detachably connected between the ends of the two lifting rods, and a connecting piece used for being connected with a current sleeve is arranged at the bottom of the transverse rod. According to the large-current bushing dismounting device provided by the utility model, the current bushing is lifted by adopting a modular dismounting device which can be assembled in a narrow space on site, so that the pull-out and transfer efficiency of the current bushing is improved; and the traditional operations of fixed lifting points, lifting and translation of the roof are replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of indoor large-scale transformer maintenance, in particular to a large-current bushing disassembly device. Background Art

[0002] Because the main transformer of the generator in the underground power station is usually arranged in a small and closed space, it is impossible to use a crane or other large tooling for lifting operations. In the past, the main transformer bushings have always been replaced and installed using rooftop lifting points. Since a large number of aerial work platforms need to be set up and dismantled, not only the working environment is more complicated, but also the operation is risky, difficult, and takes a long time to complete; especially the high-current bushings installed vertically on the low-voltage connection box of the three-phase combined main transformer, such as Figure 1 As shown, due to the busbar obstruction above the bushing, large equipment cannot be used. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a large current bushing disassembly device, so as to make the disassembly of the current bushing more convenient.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a large current bushing disassembly device, including brackets located on both sides, a guide rod is provided on the inner side of the bracket, a lifting rod is sleeved on the guide rod, and also includes a screw rod for driving the lifting rod to move up and down; a cross bar is detachably connected between the ends of the two lifting rods, and a connecting piece for connecting with the current bushing is provided at the bottom of the cross bar.

[0005] Preferably, a hand wheel for driving the screw to rotate is provided on the outer side of the bottom of the bracket.

[0006] Preferably, a universal wheel is provided at the bottom of the bracket.

[0007] Preferably, the connecting member is a basket bolt, one end of which is connected to the bottom of the cross bar, and the other end is hinged with a connecting head, which is fixedly connected to the mounting hole on the current bushing by a bolt.

[0008] Preferably, the cross bar and the lifting rod are connected by bolts, and a lifting ring is provided at the upper end of the bolt.

[0009] Preferably, three connecting pieces are provided at the bottom of each crossbar.

[0010] The utility model provides a large current bushing disassembly device, which adopts an assembleable modular disassembly device to lift the current bushing, can be assembled on site in a narrow space, and improves the efficiency of pulling out and transporting the current bushing; and replaces the traditional roof fixed lifting point, lifting and translation operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0012] Figure 1 It is a structural schematic diagram of the prior art;

[0013] Figure 2 It is a structural schematic diagram of the utility model;

[0014] Figure 3 It is a structural schematic diagram of the bracket of the utility model;

[0015] Figure 4 It is a schematic diagram of the structure of the utility model when in use. DETAILED DESCRIPTION

[0016] like Figure 1-2 As shown, a high current bushing removal device comprises brackets 1 located on both sides, a guide rod 2 is provided on the inner side of the bracket 1, a lifting rod 3 is sleeved on the guide rod 2, and a screw rod 4 is provided for driving the lifting rod 3 to move up and down; a cross bar 5 is detachably connected between the ends of the two lifting rods 3, and a connector 6 for connecting with the current bushing is provided at the bottom of the cross bar 5. The device is assembled by using two brackets 1 and two cross bars 5, which is convenient for on-site assembly in a narrow location, and then the current bushing is lifted.

[0017] Preferably, a hand wheel 7 for driving the screw rod 4 to rotate is provided on the outer side of the bottom of the bracket 1 .

[0018] Preferably, a universal wheel 8 is provided at the bottom of the bracket 1. After the current bushing is lifted, it is convenient to transfer the current bushing.

[0019] Preferably, the connecting member 6 is a turnbuckle bolt, one end of which is connected to the bottom of the crossbar 5, and the other end is hinged with a connecting head 9, which is fixedly connected to the mounting hole on the current bushing by a bolt, so as to facilitate adjusting the length of the connecting member to suit different installation positions.

[0020] Preferably, the cross bar 5 is connected to the lifting rod 3 by bolts, and a lifting ring 10 is provided at the upper end of the bolt, so as to facilitate lifting the device after the transfer.

[0021] Preferably, three connecting members are provided at the bottom of each cross bar 5 .

[0022] When in use, first assemble the device at the current bushing, then fix the connector 6 to the mounting hole of the current bushing, then operate the hand wheel 7 to raise the lifting rod 3, thereby lifting the current bushing, and then move the device to transport the current bushing out. Figure 3 shown.

[0023] 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 high current bushing removal device, characterized in that: The invention comprises brackets (1) located on two sides, a guide rod (2) is provided on the inner side of the bracket (1), a lifting rod (3) is sleeved on the guide rod (2), and a screw rod (4) is used to drive the lifting rod (3) to move up and down; a cross bar (5) is detachably connected between the ends of the two lifting rods (3), and a connecting piece (6) for connecting to a current bushing is provided at the bottom of the cross bar (5).

2. A high current bushing removal device according to claim 1, characterized in that: A hand wheel (7) for driving the screw rod (4) to rotate is provided on the outer side of the bottom of the bracket (1).

3. A high current bushing removal device according to claim 1, characterized in that: The bottom of the bracket (1) is provided with a universal wheel (8).

4. A high current bushing removal device according to claim 1, characterized in that: The connecting member (6) is a basket bolt, one end of which is connected to the bottom of the crossbar (5), and the other end is hinged with a connecting head (9), and the connecting head (9) is fixedly connected to the mounting hole on the current bushing by means of a bolt.

5. A high current bushing removal device according to claim 1, characterized in that: The cross bar (5) and the lifting rod (3) are connected by bolts, and a lifting ring (10) is provided at the upper end of the bolt.

6. A high current bushing removal device according to claim 1 or 4, characterized in that: Three connecting pieces are provided at the bottom of each crossbar (5).

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