Integrated structure of end cover and brush holder assembly of phase modifier

Abstract

The utility model discloses a phase modifier end cover and brush holder assembly integrated structure, which relates to the field of phase modifiers, and comprises an end cover, an end cover bearing and a brush holder assembly, the brush holder assembly comprises a brush holder underframe, a brush holder and a brush holder cover, and the end cover is provided with a transverse reinforcing rib plate and a vertical reinforcing rib plate. The transverse reinforcing rib plate and the vertical reinforcing rib plate are fixedly connected with the end cover, the brush carrier bottom frame is fixedly connected to the transverse reinforcing rib plate and the vertical reinforcing rib plate, the brush carrier is fixed to the brush carrier bottom frame through bolts and provided with a centrifugal fan, and the brush carrier cover wraps the brush carrier and is fixed to the brush carrier bottom frame. According to the utility model, the size of the brush holder is reduced, and the working space is reduced; through the arrangement of the end cover reinforcing ribs, the overall structural rigidity is improved, and vibration is restrained; the bottom frame structure provides a ventilation path for the brush frame, and the overall rigidity of the structure is improved; and meanwhile, the difficulty of field installation, maintenance and overhaul of the phase modifier is reduced, and the integrity of transportation, the reliability of operation and maintenance and the convenience of overhaul are improved.

Description

Technical Field

[0001] The utility model relates to the field of phase regulators, in particular to an integrated structure of a phase regulator end cover and a brush holder assembly. Background Art

[0002] The brush holder and end cover of large steam turbine generators are arranged separately and independently of each other. The end cover bearing and brush holder each occupy a large space. During transportation, the end cover is shipped together with the generator base or separately, and the brush holder is shipped separately, resulting in high transportation costs and a large operating space when working. At the same time, because this part of the structure carries the rotor, a high-speed rotating part, the end mass is also heavy, which is prone to cause large vibration problems, and the stability of the structure needs to be ensured. In addition, the carbon brush will produce friction loss during operation and cause heat, so the operating temperature needs to be controlled within a certain range.

[0003] The Chinese patent document with publication number CN202183697U discloses a new type of box-type generator excitation end detachable structure. The utility model discloses a new type of box-type generator excitation end detachable structure, including a generator end cover and a bearing on the generator end cover. The outer side of the generator end cover is provided with a mounting surface, and a bracket is detachably connected on the mounting surface, and an exciter is installed on the upper part of the bracket. This structure makes the exciter convenient and flexible to disassemble and assemble. The exciter and the generator host are unified and compact in structure, which can effectively reduce the occupied site area, reduce the civil construction cost, shorten the construction period, and have high comprehensive economic benefits.

[0004] However, the technical solution with the publication number CN202183697U, on the one hand, requires a new mounting surface to connect the bracket, which increases the cost and makes the overall structure unstable; on the other hand, the technical solution cannot effectively reduce the operating temperature rise. Utility Model Content

[0005] In order to solve the above technical problems, the utility model proposes an integrated structure of a phase regulator end cover and a brush holder assembly, which optimizes the end cover structure, enhances the rigidity of the overall structure, suppresses vibration, and optimizes the brush holder structure, reduces the space occupied by the equipment, improves space utilization, and can reduce the working temperature of the brush holder.

[0006] The utility model is realized by adopting the following technical solutions:

[0007] A phase regulator end cover and brush holder assembly integrated structure, including an end cover, an end cover bearing, and a brush holder assembly, the brush holder assembly including a brush holder base frame, a brush holder and a brush holder cover, the end cover is provided with a transverse reinforcing rib plate and a plurality of vertical reinforcing rib plates perpendicular to the transverse reinforcing rib plate, the transverse reinforcing rib plate and the vertical reinforcing rib plate are fixedly connected to the end cover, the brush holder base frame is fixedly connected to the transverse reinforcing rib plate and the vertical reinforcing rib plate, the brush holder is fixed to the brush holder base frame by bolts and is provided with a centrifugal fan, and the brush holder cover is fixed to the brush holder base frame.

[0008] The end cover, the transverse reinforcing rib plate, the vertical reinforcing rib plate and the brush rack base are all provided with bolt holes, and the brush rack base is connected to the transverse reinforcing rib plate, the vertical reinforcing rib plate and the end cover as a whole through bolts.

[0009] The vertical reinforcing ribs are provided with two and are symmetrically arranged on the surface of the end cover.

[0010] One end of the vertical reinforcing rib plate abuts against the upper end of the transverse reinforcing rib plate, and the other end abuts against the outer wall of the end cover bearing.

[0011] The bottom of the brush rack chassis is connected with an air duct.

[0012] The brush rack base frame is provided with a positioning groove matched with the brush rack cover.

[0013] The brush holder cover is fastened to the brush holder base frame by bolts.

[0014] The brush holder cover is provided with an observation window made of organic glass.

[0015] The observation windows are symmetrically arranged on both sides of the brush holder cover.

[0016] A plurality of end cover fixing holes are evenly arranged around the end cover.

[0017] Compared with the prior art, the advantages of the utility model are:

[0018] 1. The utility model sets the reinforcing rib plate on the end cover, which increases the rigidity of the overall structure and suppresses vibration. At the same time, the utility model connects the brush holder assembly to the reinforcing rib plate instead of the mounting surface, which reduces the cost and the instability of the overall structure, making the structure more compact.

[0019] 2. The utility model integrates the brush holder assembly and the end cover into one body, which has a compact structure. There is no need to transport the end cover and the brush holder separately, and the volume of the brush holder is reduced, the utilization rate of the overall space is improved, the transportation cost is reduced, and the convenience of maintenance is improved.

[0020] 3. The utility model provides a centrifugal fan on the brush holder, which can effectively reduce the working temperature and ensure the normal operation of the system. The brush holder is covered by a brush holder cover, which reduces the scattering of dust, reduces environmental pollution and reduces noise.

[0021] 4. In the utility model, an air duct is connected to the bottom of the brush holder chassis, and the air duct provides a ventilation circuit for the brush holder. At the same time, the air duct can also provide support for the brush holder chassis during operation, further enhancing the rigidity of the overall structure.

[0022] 5. The utility model is provided with observation windows on both sides of the brush holder cover, so that the operation status of the equipment can be intuitively understood and possible problems can be discovered in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementations, wherein:

[0024] Figure 1 This is the overall structure diagram of the utility model;

[0025] Figure 2 It is a schematic diagram of the end cover of the utility model.

[0026] Markings in the figure:

[0027] 1. End cover, 2. Brush holder cover, 3. Brush holder base, 4. Horizontal reinforcing rib plate, 5. Vertical reinforcing rib plate, 6. Observation window, 7. Air duct, 8. Bolt hole, 9. End cover fixing hole. DETAILED DESCRIPTION

[0028] Example 1

[0029] As the most basic embodiment of the utility model, a phase regulator end cover 1 and a brush holder assembly integrated structure includes an end cover 1, an end cover bearing, and a brush holder assembly, wherein the brush holder assembly includes a brush holder base frame 3, a brush holder and a brush holder cover 2, wherein the end cover 1 is provided with a transverse reinforcing rib plate 4 and a plurality of vertical reinforcing rib plates 5 perpendicular to the transverse reinforcing rib plate 4, the transverse reinforcing rib plate 4 and the vertical reinforcing rib plate 5 are fixedly connected to the end cover 1, the brush holder base frame 3 is fixedly connected to the transverse reinforcing rib plate 4 and the vertical reinforcing rib plate 5, the brush holder is fixed to the brush holder base frame 3 by bolts and is provided with a centrifugal fan, and the brush holder cover 2 wraps the brush holder and fixes it to the brush holder base frame 3.

[0030] In this embodiment, the reinforcing ribs are arranged on the end cover 1, which increases the rigidity of the overall structure and suppresses vibration. At the same time, in this embodiment, the brush holder assembly is connected to the reinforcing ribs instead of the mounting surface, which reduces the cost and the instability of the overall structure. The structure is more compact, and the brush holder assembly is integrated with the end cover 1, which reduces the transportation cost. The operating temperature is also reduced by setting a centrifugal fan.

[0031] Example 2

[0032] As a preferred embodiment of the utility model, this embodiment is based on embodiment 1, and further, bolt holes 8 are provided on the end cover 1, the transverse reinforcing rib plate 4, the vertical reinforcing rib plate 5 and the brush holder base frame 3, and the brush holder base frame 3 is connected to the transverse reinforcing rib plate 4, the vertical reinforcing rib plate 5 and the end cover 1 as a whole through bolts.

[0033] Furthermore, two vertical reinforcing ribs 5 are provided and are symmetrically arranged on the surface of the end cover 1 .

[0034] Furthermore, one end of the vertical reinforcing rib plate 5 abuts against the upper end of the transverse reinforcing rib plate 4, and the other end abuts against the outer wall of the end cover bearing.

[0035] In this embodiment,

[0036] Example 3

[0037] As the best implementation mode of the utility model, this embodiment is based on Embodiment 1 and Embodiment 2, and further, the bottom of the brush holder base frame 3 is connected with an air duct 7, which provides a ventilation circuit for the brush holder. At the same time, the air duct 7 can also provide support for the brush holder base frame 3 during operation, further enhancing the rigidity of the overall structure.

[0038] Furthermore, a positioning groove cooperating with the brush holder cover 2 is provided on the brush holder base frame 3 .

[0039] Furthermore, the brush holder cover 2 is fastened to the brush holder base frame 3 by bolts.

[0040] Furthermore, the brush holder cover 2 is provided with an observation window 6 made of organic glass, which can intuitively understand the operation status of the equipment and discover possible problems in time.

[0041] Furthermore, the observation windows 6 are symmetrically arranged on both sides of the brush holder cover 2 .

[0042] Furthermore, a plurality of end cover fixing holes 9 are evenly arranged around the end cover 1 .

[0043] In this embodiment, the end cover 1 is integrated with the brush holder assembly, and the volume of the brush holder is reduced, so as to make more efficient use of the on-site space; by optimizing the structure of the end cover 1, the overall rigidity of the structure is enhanced and vibration is suppressed; the chassis structure not only provides a ventilation path for the brush holder, but also increases the overall rigidity of the structure. At the same time, the on-site installation, maintenance and overhaul level of the phase-shifting project is generally difficult at present. The brush holder is integrated with the end cover 1, and the compact and simple structure improves the integrity of transportation, the reliability of operation and maintenance, and the convenience of overhaul.

Claims

1. A phase condenser end cover (1) and a brush holder assembly integrated structure, comprising an end cover (1) and an end cover bearing, characterized in that: The brush rack assembly also includes a brush rack base frame (3), a brush rack and a brush rack cover (2); the end cover (1) is provided with a transverse reinforcing rib plate (4) and a plurality of vertical reinforcing rib plates (5) perpendicular to the transverse reinforcing rib plate (4); the transverse reinforcing rib plate (4) and the vertical reinforcing rib plate (5) are fixedly connected to the end cover (1); the brush rack base frame (3) is fixedly connected to the transverse reinforcing rib plate (4) and the vertical reinforcing rib plate (5); the brush rack is fixed to the brush rack base frame (3) by bolts and is provided with a centrifugal fan; and the brush rack cover (2) is fixed to the brush rack base frame (3).

2. The integrated structure of a phase modulator end cover (1) and a brush holder assembly according to claim 1, characterized in that: Two vertical reinforcing rib plates (5) are provided and are symmetrically arranged on the surface of the end cover (1).

3. The integrated structure of a phase modulator end cover (1) and a brush holder assembly according to claim 1, characterized in that: One end of the vertical reinforcing rib plate (5) abuts against the upper end of the transverse reinforcing rib plate (4), and the other end abuts against the outer wall of the end cover bearing.

4. The integrated structure of a phase modulator end cover (1) and a brush holder assembly according to claim 1, characterized in that: The end cover (1), the transverse reinforcing rib plate (4), the vertical reinforcing rib plate (5) and the brush holder base frame (3) are all provided with bolt holes (8), and the brush holder base frame (3) is integrally connected to the transverse reinforcing rib plate (4), the vertical reinforcing rib plate (5) and the end cover (1) via bolts.

5. The integrated structure of a phase modulator end cover (1) and a brush holder assembly according to claim 1, characterized in that: The bottom of the brush rack base frame (3) is connected to an air duct (7).

6. The integrated structure of a phase modulator end cover (1) and a brush holder assembly according to claim 1, characterized in that: The brush rack base frame (3) is provided with a positioning groove which cooperates with the brush rack cover (2).

7. The integrated structure of a phase modulator end cover (1) and a brush holder assembly according to claim 1, characterized in that: The brush holder cover (2) is fastened to the brush holder base frame (3) by means of bolts.

8. The integrated structure of a phase modulator end cover (1) and a brush holder assembly according to claim 1, characterized in that: The brush holder cover (2) is provided with an observation window (6) made of organic glass.

9. The integrated structure of a phase modulator end cover (1) and a brush holder assembly according to claim 8, characterized in that: The observation windows (6) are symmetrically arranged on both sides of the brush holder cover (2).

10. The integrated structure of a phase modulator end cover (1) and a brush holder assembly according to claim 1, characterized in that: The end cover (1) is evenly provided with a plurality of end cover fixing holes (9) around a periphery.

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