CN218587028U - Split type excitation structure of large synchronous machine - Google Patents
Split type excitation structure of large synchronous machine Download PDFInfo
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- CN218587028U CN218587028U CN202223113323.0U CN202223113323U CN218587028U CN 218587028 U CN218587028 U CN 218587028U CN 202223113323 U CN202223113323 U CN 202223113323U CN 218587028 U CN218587028 U CN 218587028U
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- exciter
- connecting cylinder
- synchronous machine
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- type excitation
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Abstract
The utility model discloses a split type excitation structure of a large synchronous machine, which comprises a cover plate, a connecting cylinder, an exciter machine seat and an end cover which are coaxially and sequentially arranged, wherein the cover plate, the connecting cylinder, the exciter machine seat and the end cover are detachably connected; the magnetic field generator further comprises an exciter stator arranged on the exciter machine base, and a fan, an armature and a rectifying disc which are arranged on the rotating shaft, wherein the position of the fan corresponds to the connecting cylinder, the position of the armature corresponds to the exciter stator, and the position of the rectifying disc corresponds to the end cover. The utility model discloses a sectional type connection scheme to realize split type excitation structure, but the installation and the maintenance of the at utmost convenience exciter.
Description
Technical Field
The utility model relates to a synchronous machine exciter technical field, concretely relates to split type excitation structure of large-scale synchronous machine.
Background
The exciter system of the original safety-increased countless exciting synchronous motors is of a box-type structure and is arranged at the exciting end of a main motor. The exciter comprises a fan, an armature, an exciter stator, a rotary rectifying disc and the like. During assembly, the exciter fan, the armature and the rotary rectifying disc are sleeved on a motor shaft of the main machine. The exciter stator poles are mounted on the stator frame and the exciter frame with poles is then mounted in the exciter housing. The heater is also installed in the exciter cover, and finally the exciter cover with the exciter stator and the heater is sleeved on the exciter armature and tightly fixed on the bottom plate of the motor.
The exciter related components are arranged in a box body of an integral outer cover, and the formed exciter is of a box-type structure, and has the following defects:
1. because the original exciter machine base needs to be installed and pressed into the exciter outer cover, the requirement on the processing precision of the exciter outer cover is high, the corresponding production period is long, and the processing cost is high.
2. Because the whole exciter of original exciter dustcoat shines the inside, exciter terminal box and exciter heater terminal box need be installed on the exciter dustcoat, need wear the exciter with the cable when tearing open and examining inside, and the cable interlude is inconvenient, and hangs the lead wire easily.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the problem among the prior art, provide a split type excitation structure of large-scale synchronous machine.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a split type excitation structure of a large synchronous machine comprises a cover plate, a connecting cylinder, an exciter machine base and an end cover which are coaxially and sequentially arranged, wherein the cover plate, the connecting cylinder, the exciter machine base and the end cover are detachably connected;
the magnetic field generator further comprises an exciter stator arranged on the exciter machine base, and a fan, an armature and a rectifying disc which are arranged on the rotating shaft, wherein the position of the fan corresponds to the connecting cylinder, the position of the armature corresponds to the exciter stator, and the position of the rectifying disc corresponds to the end cover.
Furthermore, the cover plate is of an upper half-divided structure and a lower half-divided structure, and the two halves are detachably connected through bolts.
Furthermore, the left side of the connecting cylinder is detachably connected with the cover plate through a bolt, the right side of the connecting cylinder is detachably connected with the left end of the exciter machine base through a bolt, and the end cover is detachably connected with the right end of the exciter machine base through a bolt.
Furthermore, the lower opening of the connecting cylinder is connected with the bottom plate of the main motor and is connected with the air path inside the motor.
Furthermore, the lower part of the end cover is provided with a hole which is aligned with the ventilation hole of the bottom plate of the main motor.
Furthermore, a support plate is arranged on the exciter machine base and used for mounting the exciter machine base on the main motor base plate.
Furthermore, the number of the support plates is two, and the support plates are symmetrically arranged on two sides of the exciter base.
Further, the exciter machine comprises an exciter terminal box and an exciter heater terminal box, wherein the exciter terminal box and the exciter heater terminal box are fixed on the exciter machine base.
The utility model has the advantages that:
1. the utility model discloses a sectional type connection scheme to realize split type excitation structure (the relevant part of exciter is independently installed, not in the box of a whole dustcoat), but the installation and the maintenance of the greatest degree convenience exciter.
Only the end cover needs to be removed when the commutator disc needs to be repaired, only the end cover and the commutator disc need to be removed when the armature needs to be repaired, and the whole exciter base does not need to be removed any more.
2. The utility model discloses well exciter frame is from taking the extension board, can be direct when installing the motor with the exciter frame on, simple to operate is succinct, has reduced the component, reduces the processing to the exciter dustcoat and the pressure equipment process of exciter stator, improves the installation effectiveness and the cost is reduced.
3. The utility model discloses well exciter terminal box and exciter heater terminal box are fixed on the exciter frame, and the lead wire is direct from introducing the terminal box through the exciter frame to need not to dismantle the lead wire when realizing dismantling the exciter, labour saving and time saving when tearing open the inspection, convenient easy going.
4. The utility model discloses well apron is half formula from top to bottom, forms detachable construction through the bolt to tight between the two halves, conveniently observes the inside fan condition.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a side view of the present invention.
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
The first embodiment is as follows:
as shown in fig. 1 to 2, the present embodiment provides a split excitation structure of a large synchronous machine, which is used to solve the problems of long manufacturing cycle, high manufacturing cost, and difficult assembly and maintenance of a synchronous machine exciter system with stamped sheet outer diameters 3250 and 2900, and changes an original box-type structure exciter into a split excitation magnetic machine.
The utility model provides a split type excitation structure of large-scale synchronous machine, includes apron 1, connecting cylinder 2, exciter frame 4 and the end shield 6 that coaxial set gradually, detachable connection between apron 1, connecting cylinder 2, exciter frame 4 and the end shield 6.
Specifically, the left side of the connecting cylinder 2 is detachably connected with the cover plate 1 through a bolt, the right side of the connecting cylinder 2 is detachably connected with the left end of the exciter machine base 4 through a bolt, and the end cover 6 is detachably connected with the right end of the exciter machine base 4 through a bolt.
The magnetic excitation device also comprises an exciter stator 41 arranged on the exciter machine base 4, and a fan 3, an armature 5 and a rectifying disc 7 which are arranged on the rotating shaft. The fan 3, armature 5 and commutator disk 7 are coaxial with the main motor, and the armature 5 is thermally fitted to the shaft before the exciter stator 41 is installed.
The fan 3 position corresponds to the connecting cylinder 2, the armature position 5 corresponds to the exciter stator 41, and the commutator disk 7 position corresponds to the end cover 7.
In this embodiment, the lower opening of the connecting cylinder 2 is connected to the bottom plate of the main motor and connected to the internal air passage of the motor.
In this embodiment, the lower portion of the end shield 6 is perforated and is mounted in alignment with the main motor base plate vent.
The fan 3 stirs the cooling medium in the exciter to circulate with the cooling medium of the main motor, and cools the armature, the stator and the commutator disk of the exciter.
In this embodiment, the support plate 9 is provided on the exciter mount 4, and the exciter mount 4 is attached to the main motor base plate. Specifically, two support plates 9 are provided and are symmetrically arranged on both sides of the exciter machine base 4.
When the exciter machine base 4 is mounted, the exciter machine base 4 is directly mounted on the main motor base plate via the support plate 9. Because the exciter machine base is provided with the support plate, the exciter machine base can be directly installed on the motor, the installation is convenient and simple, the structural components are reduced, the processing of an exciter outer cover and the loading and pressing process of an exciter stator are reduced, the installation efficiency is improved, and the cost is reduced.
Still include exciter terminal box and exciter heater terminal box 8, exciter terminal box and exciter heater terminal box 8 are fixed on exciter frame 4, and the lead wire is direct from leading into the terminal box through the exciter frame to need not to dismantle the lead wire when realizing dismantling the exciter, labour saving and time saving when examining the dismantlement, convenient easy going.
The utility model discloses a sectional type connection scheme to realize split type excitation structure (the relevant part of exciter is independently installed, not in the box of a whole dustcoat), but the installation and the maintenance of exciter are made things convenient for to the at utmost.
The commutator disk is repaired only by removing the end cover, the armature is repaired only by removing the end cover and the commutator disk, and the whole exciter base is not required to be removed any more.
The second embodiment:
as shown in FIG. 1, the cover plate 1 is divided into an upper half structure and a lower half structure in the embodiment, the two halves are fastened through bolts to form a detachable structure, and the condition of the internal fan can be observed conveniently.
The above embodiments are only used for illustrating but not limiting the technical solutions of the present invention, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention may be modified or substituted with equivalents without departing from the spirit and scope of the invention, which should be construed as being limited only by the claims.
If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the use of "first" and "second" is merely for convenience in describing the invention and to simplify the description, the words do not have a special meaning unless otherwise stated.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Claims (8)
1. The utility model provides a split type excitation structure of large-scale synchronous machine which characterized in that: the excitation machine comprises a cover plate, a connecting cylinder, an excitation machine base and an end cover which are coaxially and sequentially arranged, wherein the cover plate, the connecting cylinder, the excitation machine base and the end cover are detachably connected;
the magnetic field generator further comprises an exciter stator arranged on the exciter machine base, and a fan, an armature and a rectifying disc which are arranged on the rotating shaft, wherein the position of the fan corresponds to the connecting cylinder, the position of the armature corresponds to the exciter stator, and the position of the rectifying disc corresponds to the end cover.
2. The split-type excitation structure of the large synchronous machine according to claim 1, characterized in that: the cover plate is of an upper half-divided structure and a lower half-divided structure, and the two halves are detachably connected through bolts.
3. The split type excitation structure of the large synchronous machine according to claim 1, characterized in that: the left side of the connecting cylinder is detachably connected with the cover plate through a bolt, the right side of the connecting cylinder is detachably connected with the left end of the exciter machine base through a bolt, and the end cover is detachably connected with the right end of the exciter machine base through a bolt.
4. The split-type excitation structure of the large synchronous machine according to claim 1, characterized in that: and the lower opening of the connecting cylinder is connected with the bottom plate of the main motor and is connected with an internal air passage of the motor.
5. The split-type excitation structure of the large synchronous machine according to claim 1, characterized in that: and the lower part of the end cover is provided with a hole which is aligned with the ventilation hole of the bottom plate of the main motor.
6. The split-type excitation structure of the large synchronous machine according to any one of claims 1 to 5, characterized in that: and a support plate is arranged on the exciter machine base and used for mounting the exciter machine base on the main motor base plate.
7. The split type excitation structure of the large synchronous machine according to claim 6, characterized in that: the number of the support plates is two, and the support plates are symmetrically arranged on two sides of the exciter machine base.
8. The split-type excitation structure of the large synchronous machine according to claim 6, characterized in that: the exciter terminal box and the exciter heater terminal box are fixed on the exciter base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223113323.0U CN218587028U (en) | 2022-11-23 | 2022-11-23 | Split type excitation structure of large synchronous machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223113323.0U CN218587028U (en) | 2022-11-23 | 2022-11-23 | Split type excitation structure of large synchronous machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218587028U true CN218587028U (en) | 2023-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223113323.0U Active CN218587028U (en) | 2022-11-23 | 2022-11-23 | Split type excitation structure of large synchronous machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218587028U (en) |
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2022
- 2022-11-23 CN CN202223113323.0U patent/CN218587028U/en active Active
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