Detachable exciter

Abstract

The detachable exciter comprises a rotor and a stator, the rotor comprises a rectifying disc, an armature, a collecting ring and a rotating shaft, the rectifying disc is detachably installed on the armature through a first bolt and a second bolt, the center of the armature is in close fit with the rotating shaft through a sleeve, the rectifying disc is further connected with the rotating shaft through a third bolt, and the collecting ring is connected with the rotating shaft through a fourth bolt. The collecting ring is in transition fit connection with the tail part of the rotating shaft; and the armature and the tail part of the collecting ring are tightened and fixed in four axial directions through bolts. By improving the maintenance convenience, reducing the maintenance cost, enhancing the equipment safety, improving the equipment operation efficiency and the like, powerful support is provided for long-term stable operation of the equipment.

Description

Technical Field

[0001] The utility model belongs to the technical field of exciters, and particularly relates to a detachable exciter. Background Art

[0002] Brushless exciters are widely used in the market and play an important regulating role in wind farms and power systems. By adjusting the excitation current, the voltage and frequency of the power system are regulated to maintain the stability of the system. An exciter mainly consists of a rotor and a stator. The function of the rotor is mainly reflected in its ability to convert electrical energy into mechanical energy. Through the interaction of the magnetic field and the electric field, the rotor generates a rotational motion. The rotor usually consists of a magnetic conductive material and a winding. When the winding is energized, an armature magnetic field is generated. When the magnetic field generated by the stator interacts with the magnetic field generated by the rotor, a torque is generated to make the rotor rotate. After a failure occurs in the existing brushless exciter, due to the inconvenience of disassembly, the maintenance time is often long, the repair is troublesome and costly, and it may also cause the entire power system to shut down, resulting in irreparable major losses. Summary of the Utility Model

[0003] Aiming at the defects or deficiencies existing in the above-mentioned prior art, the utility model aims to provide an exciter with a simple structure and convenient disassembly.

[0004] The object of this application is achieved by the following technical solutions:

[0005] A detachable exciter includes a rotor and a stator. The rotor includes a rectifier disk, an armature, a slip ring and a rotating shaft. The rectifier disk is detachably installed on the armature through bolt one and bolt two. The center of the armature is tightly fitted with the rotating shaft through a sleeve. The rectifier disk is also connected to the rotating shaft through bolt three. The slip ring is connected to the tail of the rotating shaft with a transitional fit. The tails of the armature and the slip ring are axially tightened and fixed through bolt four.

[0006] Preferably, the stator includes a frame, a front end cover and a rear end cover. The armature is arranged inside the frame. The front end cover and the rear end cover are respectively arranged on the front and rear sides of the frame. The front end cover is connected to the outer peripheral side of the rectifier disk, and the rear end cover is connected to the outer cover at the tail of the rotor.

[0007] Preferably, a plurality of connecting feet are arranged on the front part of the armature along its circumference. The connecting feet are connected to the rectifier disk through bolt one.

[0008] Preferably, a conical hole is arranged in the center of the sleeve. The sleeve is tightly fitted with the rotating shaft through the conical hole.

[0009] Preferably, the slip ring is positioned and connected to the rotating shaft through a positioning pin in the circumferential direction.

[0010] Preferably, a threaded hole is provided at the tail of the armature, and the bolt four passes through the slip ring and is connected to the threaded hole.

[0011] Preferably, a fan is sleeved on the tail of the armature.

[0012] Compared with the prior art, the present application has at least the following obvious advantages and effects:

[0013] Improve maintenance convenience: The detachable exciter structure allows for more convenient and rapid maintenance and replacement of the exciter, reduces complex operations during maintenance, and improves work efficiency.

[0014] Reduce maintenance costs: Since the detachable design simplifies the maintenance process, reduces the time and labor costs required for maintenance, and thus reduces the overall maintenance cost.

[0015] Enhance equipment safety: The detachable structure enables safer operation during maintenance, reducing the risk of equipment damage or personal injury caused by improper operation.

[0016] Improve equipment operation efficiency: By optimizing the design and maintenance of the exciter, the detachable structure helps to improve the overall operation efficiency of the equipment and ensure the long-term stable operation of the equipment.

[0017] In summary, the detachable exciter structure provides strong support for the long-term stable operation of the equipment by improving maintenance convenience, reducing maintenance costs, enhancing equipment safety, and improving equipment operation efficiency. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the present utility model;

[0019] Figure 2 It is a partial structural diagram of the rotor in the present utility model;

[0020] Figure 3 It is a schematic structural diagram of the armature in the present utility model;

[0021] Figure 4 It is a schematic structural diagram of the machine base in the present utility model;

[0022] Component list in the present application:

[0023] 1. Rectifying disc; 2. Armature; 3. Slip ring; 4. Rotating shaft; 5. Bolt one; 6. Bolt two; 7. Bolt three; 8. Bolt four; 9. Machine base; 10. Front end cover; 11. Rear end cover; 12. Outer cover; 13. Connecting foot; 14. Positioning pin; 15. Threaded hole; 16. Fan; 17. Connecting piece; 18. Sleeve. Detailed Embodiment

[0024] Specific embodiments of the present application are described in conjunction with the accompanying drawings and the following description to teach those skilled in the art how to make and use the best mode of the present application. For the purpose of teaching the principles of the application, some conventional aspects have been simplified or omitted. Those skilled in the art should understand that variations derived from these embodiments fall within the scope of the present application. Those skilled in the art should understand that the following features can be combined in various ways to form multiple variations of the present application. Terms such as "upper", "lower", "left", "right", "middle", and "one" cited in the present application are only for the convenience of clear narration and are not used to limit the scope of implementation of the present utility model. The change or adjustment of their relative relationship, without substantial change in the technical content, should also be regarded as the scope of implementation of the present utility model. Thus, the present application is not limited to the specific embodiments described below, but is only defined by the claims and their equivalents.

[0025] As Figure 1 shown, this embodiment relates to a detachable exciter, which includes a rotor and a stator. The rotor includes a rectifying disk 1, an armature 2, a slip ring 3, and a rotating shaft 4. The rectifying disk 1 is detachably mounted on the armature 2 through bolt one 5 and bolt two 6. The center of the armature 2 is tightly fitted with the rotating shaft 4 through a sleeve 18. The rectifying disk 1 is also connected to the rotating shaft 4 through bolt three 7. The slip ring 3 is connected to the tail of the rotating shaft 4 through a transition fit. The tails of the armature 2 and the slip ring 3 are axially tightened and fixed through bolt four 8.

[0026] In the embodiment of the present application, the stator includes a machine base 9, a front end cover 10, and a rear end cover 11. The armature 2 is arranged inside the machine base 9. The front end cover 10 and the rear end cover 11 are respectively arranged on the front and rear sides of the machine base 9. The front end cover 10 is connected to the outer peripheral side of the rectifying disk 1, and the rear end cover 11 is connected to the outer cover 12 at the tail of the rotor. After the rotor is assembled, the stator as a whole is axially pushed in, the armature 2 is placed inside the machine base 9, and the circumferential clearance is controlled.

[0027] Specifically, three connecting feet 13 are arranged on the front part of the armature 2 along its circumference. The connecting feet 13 are connected to the rectifying disk 1 through bolt one 5. The connection method at bolt two 6 is that bolt two 6 directly passes through the connection part of the rectifying disk 1 and the armature 2 to fix and connect the two. Two connecting pieces 17 are arranged on the rectifying disk 1 and are connected to the rotating shaft 4 through the connecting pieces 17 and bolt three 7.

[0028] In addition, a conical hole is arranged in the center of the sleeve 18. The sleeve 18 is tightly fitted with the rotating shaft 4 through the conical hole. The slip ring 3 is positioned and connected to the rotating shaft 4 through a positioning pin 14 in the circumferential direction.

[0029] A threaded hole 15 is arranged at the tail of the armature 2. Bolt four 8 passes through the slip ring 3 and is connected to the threaded hole 15. And a fan 16 is sleeved at the tail of the armature 2 to improve the heat dissipation effect.

[0030] In the present utility model, each large component can be separately disassembled for maintenance or replacement. For example, the slip ring 3 can be separately maintained by unscrewing the bolt 8. After removing the slip ring 3, the component 7 can be removed, and then the armature 2 and the commutator disk 1 can be taken out as a whole for separate maintenance or replacement. The armature 2 and the commutator disk 1 can be separately maintained or replaced by removing the bolt one 5 and the bolt two 6.

[0031] Since those skilled in the art can easily conceive that any modifications, equivalent replacements, improvements, etc. made within the concept and principle of the application should be included within the scope of the claims of this application.

Claims

1. A detachable exciter, which comprises a rotor and a stator, is characterized in that, The rotor described above includes a rectifying disk, an armature, a slip ring and a rotating shaft. The rectifying disk is detachably mounted on the armature by bolt one and bolt two. The center of the armature is tightly fitted with the rotating shaft through a sleeve. The rectifying disk is also connected to the rotating shaft by bolt three. The slip ring is connected to the tail of the rotating shaft with a transitional fit. The tails of the armature and the slip ring are axially tightened and fixed by bolt four.

2. The detachable exciter according to claim 1, characterized in that, The stator described above includes a frame, a front end cover and a rear end cover. The armature is arranged inside the frame. The front end cover and the rear end cover are respectively arranged on the front and rear sides of the frame. The front end cover is connected to the outer peripheral side of the rectifying disk. The rear end cover is connected to the outer cover at the tail of the rotor.

3. The detachable exciter according to claim 1, characterized in that, A number of connecting feet are arranged on the front part of the armature along its circumference. The connecting feet are connected to the rectifying disk by bolt one.

4. The detachable exciter according to claim 1, wherein, A conical hole is arranged in the center of the sleeve. The sleeve is tightly fitted with the rotating shaft through the conical hole.

5. The detachable exciter according to claim 1, characterized in that, The slip ring is positioned and connected to the rotating shaft through a positioning pin in the circumferential direction.

6. The detachable exciter according to claim 1, wherein A threaded hole is arranged at the tail of the armature. Bolt four passes through the slip ring and is connected to the threaded hole.

7. The detachable exciter according to claim 1, characterized in that A fan is sleeved on the tail of the armature.

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