Rotor mechanism with fan and balancing stand integrally assembled

Abstract

The utility model provides a fan and balancing stand integrated rotor mechanism, which comprises a rotor body, a motor shaft, balancing stands, fan blades and balancing blocks, the rotor body is assembled on the motor shaft, the balancing stands are assembled at two ends of the motor shaft, the fan blades are welded on the balancing stands, and the balancing blocks are assembled on the balancing stands. The fan blades are welded on the periphery of the outer circumference of the balancing frame, a balancing block installation position is reserved in the middle of the balancing frame, and the design that the inner fan and the balancing frame are structurally integrated is achieved, so that the rotor mechanism with the fan and the balancing frame integrally assembled solves the problem that the inner fan and the balancing frame cannot be simultaneously installed due to insufficient space of a mining motor, and the service life of the mining motor is prolonged. And the service life of the mining motor is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of motor manufacturing, in particular to a rotor mechanism with a fan and a balancing frame integrally assembled. Background Art

[0002] Mining motors have a compact structure and high power density, which results in a small internal space. The local temperature at the end of the motor winding rises, and the motor needs to be cooled. An internal fan is added to the rotor to allow the mining motor to have an internal cooling effect during operation. During the rotor manufacturing process, the rotor is unbalanced due to the quality of the punching sheets when they are stacked or the keyway on the shaft. A balancing frame needs to be installed to balance the rotor.

[0003] However, due to the small internal space of the motor, the internal fan and the balance frame cannot be placed on the rotor at the same time. Some mining motors are only equipped with a balance frame without an internal fan, which causes the local temperature of the winding of the mining motor to rise, resulting in rapid insulation aging and a short service life. Or because the internal fan and the balance frame are installed close to the inner cover and other parts, it poses a safety hazard to the motor and increases the failure point. Summary of the invention

[0004] The utility model aims to provide a rotor mechanism in which a fan and a balancing frame are integrated.

[0005] A rotor mechanism with a fan and a balancing frame integrated into one body comprises a rotor body, a motor shaft, a balancing frame, fan blades and a balancing block. The rotor body is mounted on the motor shaft, the balancing frame is mounted on both ends of the motor shaft, the fan blades are welded on the balancing frame, and the balancing block is mounted on the balancing frame.

[0006] Preferably, grooves are respectively provided at the upper and lower ends of the balancing frame, and the balancing blocks are mounted in the grooves and fixed by top screws.

[0007] Preferably, the fan blades are welded on the outer periphery of the balancing frame, and a position for installing the balancing block is reserved in the middle of the balancing frame.

[0008] Preferably, ventilation holes are provided on the balance frame.

[0009] The fan and the balance frame of the mining motor are integrated with the rotor mechanism, and the fan blades and the balance frame are welded together, and the structure is reliable. The fan blades, the balance frame, a plurality of balance blocks, and a plurality of top screws constitute the integrated structure of the fan and the balance frame. The number of balance blocks and top screws is determined by the unbalance amount during the dynamic balancing of the rotor. The fan blades are welded on the outer periphery of the balance frame, and the balance block installation position is reserved in the middle part to achieve the design of the internal fan and the balance frame structure integration. In this way, the use of the rotor mechanism of the fan and the balance frame integrated with the utility model solves the problem that the internal fan and the balance frame cannot be installed at the same time due to insufficient space in the mining motor, and improves the reliability and life of the mining motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A schematic diagram of the rotor mechanism structure for integrating the fan and the balance frame;

[0011] Figure 2 This is a schematic diagram of the balance frame structure;

[0012] In the figure: rotor body 1, motor shaft 2, balance frame 3, fan blade 4, balance block 5, groove a, top screw b, ventilation hole c. DETAILED DESCRIPTION

[0013] In order to make the technical solution of the present utility model easier to understand, the technical solution of the present utility model is now clearly and completely described in the form of specific embodiments in combination with the accompanying drawings.

[0014] Please also see Figure 1 and Figure 2 The rotor mechanism of the fan and the balancing frame integrated into one body includes a rotor body 1, a motor shaft 2, a balancing frame 3, a fan blade 4 and a balancing block 5. The rotor body 1 is mounted on the motor shaft 2, the balancing frame 3 is mounted at both ends of the motor shaft 2, the fan blade 4 is welded on the balancing frame 3, and the balancing block 5 is mounted on the balancing frame 3.

[0015] Grooves a are respectively provided at the upper and lower ends of the balancing frame 3, and the balancing block 5 is mounted in the groove a and fixed by the top screw b. Ventilation holes c are provided on the balancing frame 3, and 8 ventilation holes c are designed on a circumference of the balancing frame for ventilation of the rotor core. The design of 8 ventilation holes c has a good heat dissipation effect, reduces rotor loss, and increases the service life of the motor.

[0016] The fan and the balance frame of the mining motor are integrated with the rotor mechanism, and the fan blades 4 are welded with the balance frame 3, and the structure is reliable. The fan blades 4, the balance frame 3, a plurality of balance blocks 5, and a plurality of top screws b form the fan and balance frame integrated structure. The number of balance blocks 5 and top screws b is determined by the unbalance amount during the dynamic balancing of the rotor. The fan blades 4 are welded on the outer periphery of the balance frame 3, and the installation position of the balance block 5 is reserved in the middle part to achieve the design of the internal fan and the balance frame structure integration. In this way, the use of the rotor mechanism of the fan and the balance frame integrated with the utility model solves the problem that the mining motor cannot install the internal fan and the balance frame at the same time due to insufficient space, and improves the reliability and life of the mining motor.

[0017] It should be noted that the embodiments described herein are only partial embodiments of the present invention, rather than all implementations of the present invention, and the embodiments are only exemplary, and their role is only to provide a more intuitive and clear way to understand the content of the present invention, rather than to limit the technical solutions described in the present invention. Without departing from the concept of the present invention, all other implementation methods that ordinary technicians in the field can think of without creative work, and other simple replacements and various changes to the technical solutions of the present invention, all belong to the protection scope of the present invention.

Claims

1. A rotor mechanism with a fan and a balance frame integrated, characterized in that: The rotor mechanism of the integrated fan and balance frame includes a rotor body, a motor shaft, a balance frame, fan blades and a balance block. The rotor body is mounted on the motor shaft, the balance frame is mounted on both ends of the motor shaft, the fan blades are welded on the balance frame, and the balance block is mounted on the balance frame.

2. The rotor mechanism with integrated fan and balance frame as claimed in claim 1, characterized in that: Grooves are respectively provided at the upper and lower ends of the balancing frame, and the balancing blocks are installed in the grooves and fixed with top screws.

3. The rotor mechanism with integrated fan and balance frame as claimed in claim 2, characterized in that: The fan blades are welded on the outer periphery of the balance frame, and a position for installing the balance block is reserved in the middle of the balance frame.

4. The rotor mechanism with integrated fan and balance frame as claimed in claim 3, characterized in that: Ventilation holes are provided on the balance frame.

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