Bridge crane winding type motor slip ring repairing device

Abstract

The utility model belongs to the technical field of motor slip ring repairing, and discloses a bridge crane winding type motor slip ring repairing device which comprises a fixed clamping plate and a tool bit clamping assembly installed on the fixed clamping plate through a rotating shaft, the fixed clamping plate comprises a butt strap and a limiting plate, the butt strap is of an L-shaped structure on the whole, and the limiting plate is welded to the middle of the butt strap. The limiting plates can be attached to the inner side wall of the motor slip ring shell, the butt strap is provided with fixing bolts which can be screwed inwards to abut against the corresponding outer side wall of the motor slip ring shell, and therefore the motor slip ring repairing device can be fixed to the motor slip ring shell. The tool bit clamping assembly comprises a tool bit limiting frame, a stop block located in the tool bit limiting frame and used for limiting the tool bit front and back, and a tool bit fixing stud installed on the tool bit limiting frame, screwed inwards and used for abutting against the tool bit. The method has the advantages of being flexible in operation, effectively reducing the repairing difficulty, reducing the task load of workers, improving the repairing efficiency, reducing the fault downtime and the like.

Description

TECHNICAL FIELD

[0001] The utility model belongs to motor slip ring repair technical field, concretely relates to a kind of bridge crane winding type motor slip ring repair device. BACKGROUND

[0002] Bridge crane is high in frequency of operation and long in operation time in the production of branch factory, and after long time operation of hoisting equipment motor, the contact between motor carbon brush and slip ring can cause carbon brush contact surface to become small due to long time friction, and motor slip ring is extremely easy to produce spark, scar and oxidation when carbon brush friction conducts electricity, thereby causing motor slip ring damage. Therefore, slip ring needs to be repaired in time, and if not repaired in time, uneven slip ring surface will exacerbate the wear of carbon brush, and uneven wear of carbon brush can easily cause point contact between carbon brush and slip ring, to cause abnormal discharge phenomenon such as arc, thereby causing overall damage of motor.

[0003] Currently, when repairing winding type motor slip ring, motor housing needs to be removed first, and then slip ring is taken out for scar treatment by lathe, but removing motor slip ring is time-consuming and laborious, increases the working strength of maintenance personnel, cannot repair slip ring in time, increases fault downtime, and reduces the use rate of motor. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of bridge crane winding type motor slip ring repair device, and it is convenient and fast to repair, reduces fault downtime, solves the problem that current repair winding type motor slip ring needs to remove motor housing first, then slip ring is taken out for scar treatment by lathe, which causes time-consuming and laborious removal of motor slip ring, increases fault downtime.

[0005] Therefore, the technical scheme adopted by the utility model is as follows: a kind of bridge crane winding type motor slip ring repair device, including fixed clamping plate and tool bit clamping assembly installed on fixed clamping plate by rotating shaft, the fixed clamping plate includes the "L" type structure of overall "L" type structure and the limiting plate welded in the middle on the battens, the limiting plate and the batten combination form the groove structure that can be inverted and buckled on the side wall of motor slip ring shell, the limiting plate can be attached with the inner side wall of motor slip ring shell, the batten is equipped with fixed bolt that can be screwed into the corresponding outer side wall of motor slip ring shell and be tightly pressed, so that the motor slip ring repair device can be fixed on the motor slip ring shell, the tool bit clamping assembly includes tool bit limiting frame, stopper for limiting tool bit forward and backward in tool bit limiting frame and tool bit fixed stud installed on tool bit limiting frame and screwed into the tool bit for tightly pressing, so that the tool bit is fixed circumferentially.

[0006] As preferred of the above scheme, the batten and tool bit limiting frame are both provided with nut for rotating shaft to pass through at intervals, and the structure design is reasonable.

[0007] A further preferred embodiment is that the rotating shaft is a round pin equipped with a cotter pin, which is a reasonable selection.

[0008] More preferably, the cutter head limiting frame consists of a "U"-shaped frame and a cutter head mounting adjustment plate bolted to the "U"-shaped frame. The cutter head fixing stud passes through the cutter head mounting adjustment plate and abuts against the cutter head. The cutter head mounting adjustment plate can be directly removed for cutter head installation, which is convenient for cutter head installation and flexible in operation.

[0009] A further preferred embodiment is that the "U"-shaped frame is symmetrically provided with mounting nuts on its front and rear outer sides, and the cutter head mounting adjustment plate is correspondingly provided with fixing studs that can be screwed into the mounting nuts, so that the structure is installed stably and the adjustment is flexible.

[0010] The beneficial effects of this utility model are:

[0011] (1) Compared to the method of first removing the motor housing and then taking out the slip ring to process the scars on a lathe when repairing the slip ring of a wound motor, this solution uses a fixing plate that clamps the side wall of the slip ring housing and a tool head clamping assembly that clamps the tool head so that the cutting edge fits the contour of the area to be repaired on the slip ring. It is not necessary to remove the housing and take out the slip ring. Just open the top side of the housing and then install the fixing plate on the corresponding side wall. For example, when it is necessary to repair the slip ring near the left or right side, install it on the left or right side wall of the housing. When it is necessary to repair the slip ring in the middle, install it on the front or rear side wall. The operation is flexible, effectively reducing the difficulty of repair, reducing the workload of the staff, improving the repair efficiency, and reducing downtime due to failure.

[0012] (2) The fixed clamping plate adopts a groove-shaped structure that can be upside down and placed on the side wall of the motor slip ring housing. It is fixed by screwing in the fixing bolts that abut against the corresponding outer side wall of the motor slip ring housing. The stop block in the cutter head limiting frame cooperates with the cutter head fixing bolts to fix the cutter head circumferentially. The operation is simple and the structure is interlocked. The cutter head clamping assembly can be rotatably installed on the fixed clamping plate, so that the turning angle of the cutter head can be adjusted according to the site conditions. The operation is flexible and meets the actual needs.

[0013] In summary, this utility model has the advantages of flexible operation, effectively reducing the difficulty of repair, reducing the workload of staff, improving repair efficiency, and reducing downtime due to malfunctions. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 for Figure 1 A bottom view. Detailed Implementation

[0016] The present invention will be further described below with reference to embodiments and accompanying drawings:

[0017] Combination Figure 1 — Figure 2 As shown in the figure, a bridge crane winding motor slip ring repair device is composed of a fixed clamp plate 1 and a tool bit clamping assembly 2 installed on the fixed clamp plate 1 through a rotating shaft 3.

[0018] The fixed clamp plate 1 is composed of a "L" shaped structure of a clamping plate 11 and a limiting plate 12 centrally welded on the clamping plate 11.

[0019] The limiting plate 12 and the clamping plate 11 form a groove structure that can be inverted and clamped on the side wall of the motor slip ring shell.

[0020] The limiting plate 12 can be attached to the inner side wall of the motor slip ring shell.

[0021] The clamping plate 11 is equipped with a fixed bolt 13 that can be screwed inward to resist the corresponding outer side wall of the motor slip ring shell, so that the motor slip ring repair device can be fixed on the motor slip ring shell.

[0022] The clamping plate 11 and the tool bit limiting frame 21 are both provided with nuts 31 for the rotating shaft 3 to pass through.

[0023] The tool bit limiting frame 21 is composed of a "U" shaped frame 211 and a tool bit mounting and adjusting plate 212 bolted to the "U" shaped frame 211.

[0024] The tool bit fixing stud 23 passes through the tool bit mounting and adjusting plate 212 to resist the tool bit 4.

[0025] The "U" shaped frame 211 is symmetrically provided with mounting nuts on the front and rear outer sides.

[0026] The tool bit mounting and adjusting plate 212 is correspondingly provided with a fixed stud 213 that can be screwed into the mounting nut.

[0027] The tool bit clamping assembly 2 is composed of a tool bit limiting frame 21, a stop block 22 located in the tool bit limiting frame 21 for limiting the tool bit 4 forward and backward, and a tool bit fixing stud 23 installed on the tool bit limiting frame 21 and screwed inward to resist the tool bit 4, so as to circumferentially fix the tool bit.

[0028] The rotating shaft 3 adopts a round pin equipped with a split pin.

[0029] Open the top side of the motor slip ring shell, and then install the fixed clamp plate 1 on the corresponding side wall of the shell.

[0030] When the slip ring near the left or right side needs to be repaired, the fixed clamp plate 1 is installed on the left or right side wall of the shell, and when the middle slip ring needs to be repaired, the fixed clamp plate 1 is installed on the front or rear side wall.

[0031] Then according to the actual situation slightly adjust the angle of the tool holder assembly 2 and the fixed clamping plate 1, the cutting edge is mainly used for processing the outer layer of the slip ring coating.

Claims

1. A bridge crane wound rotor motor slip ring repair device, characterized by: The utility model relates to a motor slip ring repair device, including fixed clamping plate (1) and the cutter head clamping assembly (2) of installation on fixed clamping plate (1) through pivot (3), fixed clamping plate (1) includes the whole " L" type structure of the apron (11) and the limiting plate (12) of central welding on apron (11), the limiting plate (12) is combined with apron (11) and forms the groove structure that can be inverted and buckled on the lateral wall of motor slip ring shell, the limiting plate (12) can be attached with the inner lateral wall of motor slip ring shell, apron (11) is equipped with the fixed bolt (13) that can be screwed inwards and tightly contact corresponding outer lateral wall of motor slip ring shell, so that the motor slip ring repair device can be fixed on the motor slip ring shell, the cutter head clamping assembly (2) includes cutter head limiting frame (21), the stop block (22) for the front and back limiting cutter head (4) in cutter head limiting frame (21) and the cutter head fixed stud (23) that is installed on cutter head limiting frame (21) and is screwed inwards for tightly contact cutter head (4), so that the cutter head is fixed circumferentially.

2. A bridge crane motor slip ring repair device according to claim 1, characterized in that: The nut (31) for the pivot (3) is arranged between the apron (11) and the cutter head limiting frame (21).

3. A bridge crane motor slip ring repair device according to claim 1, characterized in that: The pivot (3) is a round pin equipped with a split pin.

4. A bridge crane motor slip ring repair device according to claim 1, characterized in that: The cutter head limiting frame (21) is composed of a "U" frame (211) and a cutter head mounting and adjusting plate (212) bolted to the "U" frame (211), and the cutter head fixed stud (23) passes through the cutter head mounting and adjusting plate (212) to tightly contact the cutter head (4).

5. A bridge crane motor slip ring repair device according to claim 4, characterized in that: The "U" frame (211) is symmetrically provided with mounting nuts on the front and rear outer sides, and the cutter head mounting and adjusting plate (212) is correspondingly provided with fixed studs (213) that can be screwed into the mounting nuts.

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