Auxiliary tool for dismounting winding bar of generator

By designing an auxiliary tool for removing generator stator bars, using support bases and ladder frames for support, and pulling out the stator bars with a hand-operated hoist, the problem of difficult removal of stator bars in large generator sets in existing technologies has been solved, achieving efficient removal while protecting the stator core.

CN223729612UActive Publication Date: 2025-12-26HANGZHOU HUADIAN XIASHA THERMAL POWER CO LTD
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Patent Information

Application Number
CN202520388138.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-07
Publication Date
2025-12-26
Estimated Expiration
2035-03-07

AI Technical Summary

Technical Problem

When dismantling the stator bars of large generator sets, existing technology makes it difficult to find suitable pry bar support points, which can easily damage other bars and the stator core.

Method used

An auxiliary tool for removing generator stator bars was designed, including two sets of support bases, connecting rods, ladders, and a hand-operated hoist. With the support of the support bases and ladders, the stator bars are pulled out using the hand-operated hoist. The crossbar on the ladder can be inserted into the gap of the stator core. The protective sleeve is fitted with a rubber sleeve that contacts the iron core to prevent damage to the stator core.

Benefits of technology

It improves the efficiency of stator bar removal, prevents damage to the stator core, adapts to generators of different sizes, and protects the integrity of the stator core.

✦ Generated by Eureka AI based on patent content.

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Abstract

Provided is an auxiliary tool for dismounting a generator bar. At present, the stator bar of a large-scale generator set is mostly disassembled by finding a supporting point on site, prizing the upper end and the lower end of the bar by using a crowbar, and pulling out the bar. By adopting the mode, a proper crowbar supporting point is not easy to find, and other normal winding bars and stator iron cores are easy to damage in the crowbar using process. The ladder comprises two groups of supporting seats, the lower parts of the two groups of supporting seats are connected through a connecting rod, the upper parts of the two groups of supporting seats are connected through a ladder assembly, and a chain block is hung on the ladder assembly; the supporting base comprises two base plates, two supporting legs are welded to each base plate, and the tops of the two supporting legs are fixed to a connecting plate. The dismounting tool is used for dismounting the generator winding bar.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a generator wire rod dismantling auxiliary tool. BACKGROUND

[0002] At present, the stator wire rod of large generator set is dismantled by finding the supporting point on site and prying with a crowbar, and the wire rod is pulled out from the upper and lower ends. This method is not easy to find the appropriate supporting point of the crowbar, and the normal wire rod and stator core are easily damaged during the use of the crowbar. UTILITY MODEL CONTENTS

[0003] The utility model aims at solving the above-mentioned technical problems, and provides a generator wire rod dismantling auxiliary tool.

[0004] The above-mentioned purpose is realized by the following technical scheme:

[0005] A generator wire rod dismantling auxiliary tool, which comprises two groups of supporting seats, the lower parts of the two groups of supporting seats are connected through connecting rods, and the upper parts are connected through ladders; a hand-operated hoist is hung on the ladder.

[0006] The supporting seat comprises two base plates, two supporting legs are welded on each base plate, and the top parts of the two supporting legs are fixed on a connecting plate.

[0007] The ladder of the generator wire rod dismantling auxiliary tool comprises an upper horizontal rod and a lower horizontal rod, a plurality of front vertical plates are fixed on the lower part of the upper horizontal rod, a plurality of rear vertical plates are fixed on the upper part of the lower horizontal rod, and the front vertical plates and the rear vertical plates are oppositely arranged and fixed through bolts.

[0008] The front vertical plates and the rear vertical plates are respectively provided with notches. ADVANTAGEOUS EFFECTS

[0009] 1. The utility model is put into the generator bore, the base plate is leaned on the generator stator core as the support, the bolt of the ladder is loosened, the position of the upper horizontal rod is adjusted, the upper horizontal rod of the device can be inserted into the gap of the stator core, the bolt is tightened after the position is adjusted, the stator core can support the device, the wire rod can be pulled out through the hand-operated hoist, the efficiency of wire rod dismantling is improved, and the generator stator core is prevented from being damaged.

[0010] 2. The ladder of the utility model is provided with a protective sleeve on the upper horizontal rod and each base plate, the protective sleeve is a rubber sleeve, the device and the stator core are in contact to play a protection role, and the stator core is prevented from being damaged.

[0011] 3. The distance between the upper cross bar and the lower cross bar of the ladder frame can be adjusted, so that it can adapt to generators of different sizes. BRIEF DESCRIPTION OF DRAWINGS

[0012] BRIEF DESCRIPTION OF DRAWINGS Figure 1 is the front view of the utility model;

[0013] BRIEF DESCRIPTION OF DRAWINGS Figure 2 is the top view of the utility model;

[0014] BRIEF DESCRIPTION OF DRAWINGS Figure 3 is the side view of the utility model;

[0015] BRIEF DESCRIPTION OF DRAWINGS Figure 4 is the structure schematic diagram when the utility model is used;

[0016] In the drawing: 1, base plate; 2, support leg; 3, connecting rod; 4, ladder frame; 5, hand-operated hoist; 6, generator; 7, wire bar; 8, connecting plate; 9, upper cross bar; 10, lower cross bar; 11, front vertical plate; 12, protective sleeve; 13, rear vertical plate; 14, notch. DETAILED DESCRIPTION

[0017] Referring to Figures 1-3 , a generator wire bar removal auxiliary tool, which is composed of two groups of support seats, the lower part of the two groups of support seats is connected through connecting rods 3, and the upper part is connected through ladder frames 4, and a hand-operated hoist 5 is hung on the ladder frame.

[0018] The support seat includes two base plates 1, two support legs 2 are welded on each base plate, and the top of the two support legs is fixed on a connecting plate 8.

[0019] The ladder frame includes an upper cross bar 9 and a lower cross bar 10, the lower part of the upper cross bar is fixed with a plurality of front vertical plates 11, the upper part of the lower cross bar is fixed with a plurality of rear vertical plates 13, and the front vertical plate and the rear vertical plate are oppositely positioned and fixed through bolts.

[0020] Notches 14 are formed on the front vertical plate and the rear vertical plate respectively.

[0021] Working principle: referring to Figure 4The upper cross bar of the ladder frame is sleeved with a protective sleeve 12, which can be a rubber sleeve and is bonded with the upper cross bar. Each base plate is also sleeved with a protective sleeve, which is also a rubber sleeve and is bonded with the base plate. In this way, protection is formed so that the device can contact the stator core and play a protective role to prevent damage to the stator core. When the wire bar is removed, the device is placed into the bore of the generator 6, the base plate is placed against the generator stator core as a support, the bolts of the ladder frame are loosened, the position of the upper cross bar is adjusted, the upper cross bar of the device can be inserted into the gap of the stator core, the bolts are tightened after the position is adjusted, the stator core can support the device, the wire bar is bound by the binding belt, the wire bar is pulled out by the hook of the hand-operated hoist, the efficiency of removing the wire bar is improved, and the generator stator core is prevented from being damaged.

Claims

1. A generator wire bar removal aid tool characterized by: Its composition includes two groups of support seat, two groups of the support seat below through connecting rod connection, through the ladder rack connection, the ladder rack hanging hand chain block; The support seat includes two base plates, and two legs are welded on each base plate.

2. A tool according to claim 1, wherein: The ladder rack includes an upper cross bar and a lower cross bar, the lower part of the upper cross bar is fixed with a plurality of front vertical plates, and the upper part of the lower cross bar is fixed with a plurality of rear vertical plates.

3. A generator wire bar removal aid according to claim 2, characterised in that: The front vertical plate and the rear vertical plate are respectively provided with an opening.