Ball type universal roller machine for flange disassembly

Abstract

A ball type universal roller machine for flange disassembly comprises two bearing rods, a plurality of ball bearings are arranged on the bearing rods, cross rods are connected between the two ends of the two bearing rods, a limiting baffle is arranged above one of the cross rods, a groove matched with a flange plate is formed in the bottom of the limiting baffle, and the limiting baffle is connected with the flange plate. First fixing holes used for fixing the flange plate are formed in the limiting baffles, and bolts penetrate through the first fixing holes to fix the flange plate. The utility model provides a ball type universal roller machine for flange disassembly, which can effectively fix a flange and prevent the flange from falling. The large-current sleeve flange on the low-voltage connection box can be safely and conveniently disassembled and assembled by fully utilizing limited space without adopting any lifting point or a large-scale operation platform, and equipment can be moved in any direction. The technical problem of dismounting, mounting and replacing the large flange for mounting the large-current bushing in a narrow vertical space is effectively solved, and the corresponding working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer maintenance, in particular to a ball-type universal roller bed for flange disassembly. Background Art

[0002] The three-phase combined main transformer can be arranged in an underground power station with a remote location and inconvenient overall transportation. The underground power station is generally built in the mountain, and its main transformer room is small and closed. It is impossible to use a crane or other large tooling for lifting operations in the main transformer room. The large current bushing installation flange on the low-voltage connection box of the three-phase combined main transformer has a large diameter and a large weight. At present, the lifting and disassembly operations of the large current bushing installation flange are generally carried out using ceiling hanging points or equipment-related frames. The disassembly and assembly process is high-risk, difficult, and poorly operable, which is time-consuming and labor-intensive. In order to eliminate the risks in the disassembly and assembly of large flanges for installing large current bushings in narrow vertical spaces and improve operating efficiency, it is necessary to design a modular ball-type universal roller bed. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a ball-type universal roller bed for flange disassembly, which can safely and efficiently complete the installation and disassembly work of the flange of the high-current low-voltage bushing of the three-phase combined main transformer.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a ball-type universal roller bed for flange disassembly, comprising two load-bearing rods, on which a plurality of ball bearings are arranged, a cross bar is connected between the two ends of the two load-bearing rods, a limit baffle is provided above one of the cross bars, a groove matching the flange is provided at the bottom of the limit baffle, a first fixing hole for fixing the flange is provided on the limit baffle, and the flange is fixed by passing a bolt through the first fixing hole.

[0005] Preferably, a fixing plate is provided between the two bearing bars on the inner side of the other cross bar, a second fixing hole is provided on the fixing plate, and bolts are passed through the second fixing holes to fix the other side of the flange.

[0006] Preferably, a universal wheel is provided on the outer side of the bearing rod.

[0007] Preferably, both ends of the bearing rod are provided with adjusting feet.

[0008] Preferably, fixing ears are provided at both ends of the bearing rod.

[0009] The utility model provides a ball-type universal roller bed for flange disassembly, which can effectively fix the flange and prevent the flange from falling. No lifting point is required, no large-scale working platform is required, and limited space can be fully utilized to safely and conveniently disassemble and assemble the high-current bushing flange on the low-voltage connection box, and the equipment can be moved in any direction. The technical problem of disassembly and replacement of large flanges for high-current bushing installation in a narrow vertical space is effectively solved, and the corresponding work efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the limit baffle of the utility model;

[0013] Figure 3 This is a schematic diagram of the structure of the utility model after the flange is fixed;

[0014] Figure 4 It is a schematic diagram of the structure when the utility model is used;

[0015] Figure 5 for Figure 4 A schematic diagram of the enlarged structure at A in the middle;

[0016] Figure 6 for Figure 4 Schematic diagram of the enlarged structure of Figure B. DETAILED DESCRIPTION

[0017] like Figure 1-2 As shown, a ball-type universal roller bed for flange disassembly includes two load-bearing rods 1, on which a plurality of ball bearings 2 are arranged, a cross bar 3 is connected between the two ends of the two load-bearing rods 1, a limit baffle 4 is arranged above one of the cross bars 3, a groove 5 matching with the flange is arranged at the bottom of the limit baffle 4, a first fixing hole 6 for fixing the flange is arranged on the limit baffle 4, and the flange is fixed by passing a bolt through the first fixing hole 6.

[0018] Preferably, a fixing plate 7 is provided between the two bearing bars 1 on the inner side of the other cross bar 3 , a second fixing hole 8 is provided on the fixing plate 7 , and bolts are passed through the second fixing holes 8 to fix the other side of the flange.

[0019] Preferably, a universal wheel 9 is provided on the outer side of the bearing rod 1 to facilitate the movement and transportation of the flange.

[0020] Preferably, both ends of the bearing rod 1 are provided with adjusting feet 10. The adjusting feet can adjust the vertical height of the roller bed.

[0021] Preferably, fixing ears 11 are provided at both ends of the bearing rod 1. The roller bed can be fixed to the equipment by bolting the fixing ears 11 to the equipment.

[0022] like Figure 3 As shown, the flange can be firmly fixed on the device.

[0023] like Figure 4-6 As shown, a low-voltage connection box for connecting low-voltage leads into a triangle is installed on the low-voltage side of the three-phase combined main transformer, and a high-current low-voltage bushing mounting flange is installed on the low-voltage connection box, and the low-voltage bushing is installed on the large flange. Phase B of the ABC three-phase is in the middle, and the space between phases A and C is larger. When removing the high-current low-voltage bushing mounting flanges of phases A and C, first install the device on the planes on both sides of the connection box of phases A and C, and the limit block of the roller bed faces the outside of the main transformer. When removing the high-current low-voltage bushing mounting flange of phase B, first install the device on the low-voltage connection box of phase B and the fire water pipe bracket, and the limit block of the roller bed faces the outside of the fire water pipe bracket of the main transformer. Install the universal wheels at the four corners of the high-current low-voltage bushing mounting flange. After removing the flange connection bolts, the mounting flanges of phases A and C are moved to the corresponding low-voltage connection box by the roller bed, and the mounting flange of phase B is moved from the low-voltage connection box to the working platform of the fire water pipe bracket of the main transformer by the roller bed.

[0024] 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 ball-type universal roller bed for flange removal, characterized in that: The invention comprises two bearing rods (1), a plurality of ball bearings (2) are arranged on the bearing rods (1), a cross bar (3) is connected between the two ends of the two bearing rods (1), a limit baffle (4) is arranged above one of the cross bars (3), a groove (5) matching with a flange is arranged at the bottom of the limit baffle (4), a first fixing hole (6) for fixing the flange is arranged on the limit baffle (4), and the flange is fixed by passing a bolt through the first fixing hole (6).

2. The ball-type universal roller bed for flange removal according to claim 1, characterized in that: A fixing plate (7) is provided between the two bearing bars (1) on the inner side of the other cross bar (3), and a second fixing hole (8) is provided on the fixing plate (7). Bolts are passed through the second fixing holes (8) to fix the other side of the flange.

3. A ball-type universal roller bed for flange removal according to claim 1 or 2, characterized in that: Universal wheels (9) are provided on the outer side of the bearing rod (1).

4. A ball-type universal roller bed for flange removal according to claim 1 or 2, characterized in that: Adjustable feet (10) are provided at both ends of the bearing rod (1).

5. A ball-type universal roller bed for flange removal according to claim 1 or 2, characterized in that: Both ends of the bearing rod (1) are provided with fixing ears (11).

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