CN203423593U - Large-scale motor core-pulling maintenance device - Google Patents

Abstract

The utility model provides a large-scale motor maintenance device of loosing core, belongs to large-scale motor maintenance of equipment technical field for steadily shift out the stator with the rotor when large-scale motor is loosed core and is overhauld. The technical scheme is as follows: the motor rotor support trolley comprises a rotor support trolley and a track, wherein a support beam is arranged on the upper portion of the rotor support trolley and is perpendicular to the axial direction of a motor, wheels are mounted on two sides of the lower portion of the support beam, the track is parallel to the axial direction of the motor, the wheels are placed on the track, and a rotor is placed on the support beam. The utility model discloses a supporting beam of rotor support dolly supports the below at both ends around the rotor shaft of motor respectively, and the rotor supports the dolly and moves on the track, steadily takes out the rotor from the stator, has avoided damaging owing to the coil that the collision leads to in the maintenance process, has improved maintenance equipment security, has guaranteed maintenance quality. The utility model discloses simple structure, easy to operate, fault point are few, easy maintenance, maintenance cost are low, excellent in use effect, are large-scale motor and loose core the instrument of doing all can of overhauing.

Description

A large motor core pulling inspection device

technical field

The utility model relates to a device for performing core-pulling maintenance during maintenance of a large-scale motor, which belongs to the technical field of large-scale motor maintenance equipment.

Background technique

In steel rolling production, large motors are used to drive the rotation of the work rolls of 850 rolling mills to realize the normal production of bar lines and blanking lines. This large motor is a stator and rotor split type AC synchronous motor with a power of 4000KW. The weight of the stator is 35 tons, the weight of the rotor is 45 tons, and the gap between the rotor and the stator is 16mm-18mm. Due to the heavy weight of the rotor, it is generally necessary to use a crane to assist in the core-pulling inspection, and the core-pulling inspection using a crane is prone to contact between the rotor and the stator, resulting in damage to the coil. This situation has occurred in the past, which not only delays the maintenance progress, but also increases the maintenance cost and affects the smooth progress of production.

Utility model content

The technical problem to be solved by the utility model is to provide a large-scale motor core-pulling maintenance device, which can smoothly realize the core-pulling maintenance work of large-scale motors, and avoid damage to motor rotors, stators and other components.

The technical scheme that solves the above-mentioned technical problem is:

A large-scale motor core-pulling maintenance device, which is composed of a rotor supporting trolley and a track. The upper part of the rotor supporting trolley has a supporting beam, which is perpendicular to the axial direction of the motor. Wheels are installed on both sides of the lower part of the supporting beam. To parallel, the wheels are placed on the track, and the rotor is placed on the support beam.

The above-mentioned large-scale motor core-pulling maintenance device has two sets of rails, which are respectively located at the front and rear ends of the motor. There are two sets of support beams and wheels of the rotor support trolley, which are respectively located at the front and rear ends of the motor. Below the front and rear ends of the rotor shaft of the motor, the wheels are located on the rails.

In the above-mentioned large-scale motor core-pulling maintenance device, a rotor bracket is installed above the support beam, and the rotor bracket is supported below the rotor shaft.

The beneficial effects of the utility model are:

The supporting beams of the rotor supporting trolley of the utility model are respectively supported under the front and rear ends of the rotor shaft of the motor, and the rotor supporting trolley moves on the track to smoothly extract the rotor from the stator, avoiding coil damage caused by collision during maintenance , improving the safety of maintenance equipment and ensuring the quality of maintenance. The utility model has the advantages of simple structure, easy operation, few fault points, easy maintenance, low maintenance cost and good use effect, and is a powerful tool for core-pulling maintenance of large-scale motors.

Description of drawings

Fig. 1 is the structural representation of the utility model;

FIG. 2 is a side view of FIG. 1 .

The marks in the figure are as follows: rotor supporting trolley 1, track 2, support beam 3, rotor bracket 4, wheel 5, wheel shaft 6, stator 7, rotor 8, rotor shaft 9, motor base 10, cement platform 11.

Detailed ways

The utility model is composed of a rotor supporting trolley 1 and a track 2.

As shown in the figure, the rotor support trolley 1 includes a support beam 3 , a rotor bracket 4 , a wheel 5 , and a wheel axle 6 . The upper part of the rotor supporting trolley 1 is a support beam 3, the support beam 3 is perpendicular to the axial direction of the motor, the wheels 5 are installed on both sides of the lower part of the support beam 3 through the wheel shaft 6, and the rotor bracket 4 is installed on the support beam 3 for supporting Lift the rotor shaft 9.

The figure shows that there are two groups of support beams 3 and wheels 5 of the rotor support trolley 1, which are respectively located at the front and rear ends of the motor. The two groups of support beams 3 are respectively supported under the front and rear ends of the rotor shaft 9 of the motor. superior.

The figure shows that there are two sets of track 2, which are respectively located at the front and rear ends of the motor. The track 2 is parallel to the axis of the motor. The wheels 5 are placed on the track 2 and can move along the track 2. The track 2 is fixed on the motor base 10 and the cement platform 11

The working process of the present utility model is as follows:

The stator 7 is fixed on the motor base 10, and the two ends of the rotor shaft 9 are respectively supported and fixed on the two support beams 3 of the rotor support trolley 1. After the support is completed, the bearing pad seat that originally supported the rotor is hoisted aside. It is ensured that the gap between the rotor 8 and the stator 7 will not change. The rotor support trolley 1 rolls and walks on the track 2, and the gap between the rotor 8 and the stator 7 remains unchanged at 16mm-18mm, so that the rotor 8 can be moved out of the stator 7 smoothly, thereby achieving the purpose of safe core-pulling maintenance.

Claims (3)

1. the large-size machine apparatus for examination and repair of loosing core, it is characterized in that: it is comprised of rotor supports dolly (1) and track (2), brace summer (3) is arranged at the top of rotor supports dolly (1), brace summer (3) is axial vertical with motor, brace summer (3) both sides, bottom are provided with wheel (5), the axially parallel of track (2) and motor, it is upper that wheel (5) is placed on track (2), and rotor (8) is placed on brace summer (3).

2. the large-size machine according to claim 1 apparatus for examination and repair of loosing core, it is characterized in that: described track (2) has two groups, lay respectively at the rear and front end of motor, brace summer (3), the wheel (5) of rotor supports dolly (1) have two groups, lay respectively at the rear and front end of motor, two groups of brace summers (3) are supported on respectively the below of armature spindle (9) rear and front end of motor, and wheel (5) is positioned on track (2).

3. the large-size machine according to claim 2 apparatus for examination and repair of loosing core, is characterized in that: rotor bracket (4) is installed in described brace summer (3) top, and rotor bracket (4) is supported on armature spindle (9) below.

Images