KR20020060806A - Balance Machine of a Amature Rotor - Google Patents

Abstract

PURPOSE: A balance machine of armature rotor is provided to control structure thereof appropriately to various armature rotors to be measured. CONSTITUTION: A balance machine comprises a rotor support(7) supporting a rotor; a work support(6); a rotor fix(9) fixing the rotor; a rotor fix nut; two rollers(17) placed thereunder and moving up and down to measure the various rotors placed on the rotor support, all of which control a horizontal axis according to various radiuses of the rotors; an air cylinder(4) ascending according to load of the rotor to reduce load acting on a spot(14); and an air cylinder support(3) supporting the air cylinder.

Description

Balance Machine of a Amature Rotor

The present invention relates to an armature balance measuring machine of an electric motor. An imbalance measurement of an armature rotating body of a conventional motor is based on a machine part of a frame in which a rotating body is mounted on a reference shaft using a load cell or a vibration sensor. The measurement performance is deteriorated due to the shape of the shaft, and it is a mechanical structure that induces left and right vibrations irrelevant to the measurement amount and balance measurement, which indicates the unbalance amount of the rotating body, and thus accurately measures the rotational unbalance amount of the amateur. There has been a limit to this.

The present invention improves the performance by using a vibration sensor having good characteristics of low frequency in the sensor part for measuring the imbalance amount, and installs 4 axes on the frame to measure the vibration of the rotating body. The upper frame is mounted on the top to suppress the left and right vibration irrespective of the imbalance amount, and the forward and backward movements according to the unbalance amount are smoothed, thereby improving the measurement accuracy. In addition, the upper frame, which is a mounting part of the rotating body, is positioned upwards, so that the mounting of the rotating body can be easily performed, so that the process of automation can be performed more easily, and the rotor support can be adjusted according to the axis length of various measurement products. It is designed to move the base in the axial direction and has a mechanical structure that the roller can move up and down to measure the rotating bodies of different radius.

1 is a partial cross-sectional view of fixing the armature rotating body

Figure 2 is a partial cross-sectional view of fixing the vibration sensor

3 is a partial cross-sectional view of supporting the top and bottom of a balance machine.

※ Name of parts for main parts of drawing

1: frame 2: Motor support

3: ari cylinder support 4: air cylinder

5: Sensor support 6: work support

7: Rotor support 8: side frame

9: Rotor fix 10: Rotor fix base

11: Rotor support base 12: upper frame

13: dynamic sensor 14: spot

15: slot plate 16: Sensor rolling

17: roller

20: frame nut 21: slot frame nut

22: Rotor support nut 23: rubber

24: upper frame joint

The structure of this invention is comprised as shown in FIG. 1, FIG. 2, FIG.

In the structure of the representative diagram, Rotor support (7) and work support (6) supporting the rotating body, Rotor fix (9) and Rotor fix nut (22) fixing the rotating body, and two rollers (14) below. ), It is possible to adjust the horizontal axis according to the different radius for each rotor, and if the load of the rotor is heavy, the air cylinder (4) can rise by that load, reducing the load on the spot (14) of Figure 3 The overall structure of the balance machine is shown as an air cylinder support (3) that can be used.

In FIG. 1, the side frame 8 fixing the roller 17 and the belt 14, the Rotor fix 9 fixing the rotating body, the Rotor fix base 10 supporting the Rotor fix 9, the rotating body Rotor support base (11) to move left and right along the length of the rotor when mounting the, and the slot plate (15) to support these parts, connecting the frame (1) and slot plate of Figure 3 It consists of an upper frame (12).

2 is composed of a sensor support 5 connecting the upper frame 12 and the vibration sensor 13. In particular, the vibration sensor 13 which measures the vibration signal and transmits it to the software of the PC is fixed to the upper frame 12 by the upper frame joint 24.

3 shows a structure of a spot 14, a slot plate nut 21, a frame nut 20, and an upper frame 12 as a connection structure between the slot plate 15 and the frame 1. As shown in Fig. 3, a spot 14 is used as a connection structure between the frame 1 and the slot plate 15. When the actual rotor is mounted on the upper side, the air cylinder 4 rises by the weight of the rotor. This is designed to minimize the load on the spot (14).

The present invention is able to adjust the structure according to the various armature rotating body to be measured can measure several products as one can reduce the cost of the company, can improve the accuracy of the measurement to accurately correct the unbalance amount By reducing the vibration of the various electric motors to improve the quality. In addition, it is easy to install and change the rotating body, so it is expected to improve work speed and efficiency.

Claims (4)

Mechanical structure in which the roller (17) can be adjusted up and down to measure the different rotors placed on the rotor support (7) in the representative view. As shown in the design of Figure 1, the structure that can be adjusted to move the left and right Rotor support base (11) according to the length of the object to measure the unbalance amount. In FIG. 2, the oscillating sensor 13 is connected to the sensor support 5 and fixed to the upper frame 12 through the upper frame joint 24. The vibration of the upper frame is caused by the unbalance amount. (13) measurable structure In Figure 3, the structure of fixing the slot plate (15) by using four spots (14) on the frame (1) is a mechanical structure in which the unbalance amount of the rotating body on the rotor support base (11) is converted into vibration.