CN114696545A - Braided generator main shaft grounding device - Google Patents

Braided generator main shaft grounding device Download PDF

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Publication number
CN114696545A
CN114696545A CN202210374531.1A CN202210374531A CN114696545A CN 114696545 A CN114696545 A CN 114696545A CN 202210374531 A CN202210374531 A CN 202210374531A CN 114696545 A CN114696545 A CN 114696545A
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CN
China
Prior art keywords
bending arm
bracket
braided
plate
grounding device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210374531.1A
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Chinese (zh)
Inventor
李建超
谢育才
杨承江
杨智
田祎
曹旭
朱富强
周文军
安景伟
王宝生
于腾洋
段晋伟
丁盛
李璐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huaneng Beijing Thermal Power Co Ltd
Original Assignee
Huaneng Beijing Thermal Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huaneng Beijing Thermal Power Co Ltd filed Critical Huaneng Beijing Thermal Power Co Ltd
Priority to CN202210374531.1A priority Critical patent/CN114696545A/en
Publication of CN114696545A publication Critical patent/CN114696545A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K11/00Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/40Structural association with grounding devices

Abstract

The invention discloses a large shaft grounding device of a brush braid type generator, which comprises a bracket assembly, a grounding device and a grounding device, wherein the bracket assembly comprises a bottom bracket, an upper end bracket connected to the bottom bracket in a sliding manner, and a sliding piece arranged between the upper end bracket and the bottom bracket; the hack lever assembly comprises a first bending arm arranged on the upper end bracket, a second bending arm arranged on the upper end bracket and an adjusting part arranged on the upper end bracket; and the grounding assembly is arranged at the end parts of the first bending arm and the second bending arm, an operator can drive the first bending arm and the second bending arm to slide, so that the first bending arm and the second bending arm are matched together to clamp a large shaft of the generator, and when the grounding is achieved, the stability of the four cladding plates during clamping can be improved.

Description

Braided generator main shaft grounding device
Technical Field
The invention relates to the technical field of generator large shafts, in particular to a braided type generator large shaft grounding device.
Background
At present, the earthing device used by the generator is in a mode of crimping and earthing a carbon brush and a large shaft spring, the carbon brush is used for earthing and connecting between a large shaft and an earthing terminal, 4 earthing carbon brushes are arranged on the same axial surface, 2 earthing carbon brushes are a group, and the specifications of the earthing carbon brushes are as follows: 8 multiplied by 20 multiplied by 32mm, the contact area of the grounding carbon brush and the large shaft is small (the contact area is 8 multiplied by 20mm multiplied by 4 which is 640mm2 at present), the carbon brush is easy to jump in the brush box, the large shaft is damaged by shaking, the voltage is interfered by higher harmonic waves, and even the shaft bush seat is burnt out by discharge corrosion when the voltage is serious; 4 grounding carbon brushes are contacted on the same dimension for a long time, the contact surface of the large shaft is not smooth, and strip-shaped grooves are formed, so that the grounding carbon brushes have poor contact effect with the surface of the large shaft, and are easy to have unsafe hidden dangers such as sparking, jumping and even ring fire; due to the reasons of jumping and vibration, the constant-force pressure spring is easy to break, so that the grounding carbon brush is poor in contact, and the field maintenance amount is large.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The invention is provided in view of the problems of the existing braided generator large shaft grounding device.
Therefore, the invention aims to provide a grounding device for a large shaft of a braided generator.
In order to solve the technical problems, the invention provides the following technical scheme: a big shaft grounding device of a brush-braid generator comprises a bracket assembly, a grounding bracket and a grounding bracket, wherein the bracket assembly comprises a bottom bracket, an upper end bracket connected to the bottom bracket in a sliding manner, and a sliding piece arranged between the upper end bracket and the bottom bracket; the hack lever component comprises a first bending arm arranged on the upper end bracket, a second bending arm arranged on the upper end bracket and an adjusting part arranged on the upper end bracket; and the grounding assembly is arranged at the end parts of the first bending arm and the second bending arm.
As a preferable scheme of the braided generator large shaft grounding device of the invention, wherein: the carbon brush comprises a first bending arm, a second bending arm, a grounding assembly and a carbon brush body, wherein the first bending arm and the second bending arm are both outwards bent to form an extension rod, the grounding assembly is arranged on the extension rod and comprises a connecting block arranged on the extension rod, a cladding plate arranged on the connecting block and a carbon brush body arranged on the surface of the cladding plate, and the cladding plate is arc-shaped.
As a preferable scheme of the braided generator large shaft grounding device of the invention, wherein: the surface of the cladding plate is hinged with a plurality of hinged plates, the carbon brush body is uniformly arranged on each hinged plate, a hinged piece is arranged between every two adjacent hinged plates,
the hinge piece comprises a hinge ball arranged on the side wall of the hinge plate and a semi-spherical groove body arranged on the side wall of the hinge plate and matched with the hinge ball.
As a preferable scheme of the braided generator large shaft grounding device of the invention, wherein: the cladding plate is characterized in that an ear plate is arranged at the lower end of the hinged plate, a hinged ball is also arranged on the upper surface of the cladding plate, a circular groove matched with the hinged ball is formed in the side wall of the ear plate, and a swinging notch is formed in the side wall of the ear plate.
As a preferable scheme of the large shaft grounding device of the brush-braid generator of the invention, the brush-braid generator comprises: the upper end support is provided with an arc plate, the first bending arm and the second bending arm are connected to the arc plate in a sliding mode, a guide rail groove is formed in the arc plate, sliding blocks matched with the guide rail groove are arranged on the first bending arm and the second bending arm, and sliding parts are arranged on the arc plate.
As a preferable scheme of the braided generator large shaft grounding device of the invention, wherein: the sliding component comprises an adjusting ring connected to the arc-shaped plate in a rotating mode, threaded holes formed in two ends of the adjusting ring and an adjusting rod connected to the inside of the adjusting ring in a threaded mode, the end portion of the adjusting rod is provided with a short rod head, short rod grooves matched with the short rod head are formed in the first bending arm and the second bending arm, and a rotating part is arranged on the adjusting ring.
As a preferable scheme of the large shaft grounding device of the brush-braid generator of the invention, the brush-braid generator comprises: the rotating part comprises a first gear arranged coaxially on the adjusting ring, a second gear meshed with the first gear and a middle bearing rod extending out of a rotating shaft of the second gear, a locking wheel is coaxially arranged at the rear end of the middle bearing rod,
the locking wheel is provided with a plurality of latch teeth, the middle bearing rod is sleeved with a locking block, and an elastic piece is arranged between the locking block and the locking wheel.
As a preferable scheme of the braided generator large shaft grounding device of the invention, wherein: the arc-shaped plate is rotatably connected with a locking plate, the locking plate is provided with a circular groove matched with the locking wheel, the side wall of the circular groove is provided with a plurality of latch grooves matched with the latches, the rear end of the locking plate is provided with a stepping motor,
the middle bearing rod is connected with a sleeve in a sliding mode, the sleeve is connected with the locking wheel, and the elastic piece is arranged between the sleeve and the locking block.
As a preferable scheme of the braided generator large shaft grounding device of the invention, wherein: the locking piece is arranged in the clamping block and comprises a clamping ring hinged to the sleeve, a swinging rod arranged at the rear end of the clamping ring and a tension sensor arranged in the clamping block, the front end of the tension sensor is electrically connected with an electric cylinder, and the electric cylinder is hinged to the rear end of the swinging rod.
As a preferable scheme of the braided generator large shaft grounding device of the invention, wherein: the end part of the short rod head is provided with a gear, a rack meshed with the gear is arranged in the short rod groove, and the rack is arranged in an arc shape.
The invention has the beneficial effects that: an operator can drive the first bending arm and the second bending arm to slide, so that the first bending arm and the second bending arm are matched together to clamp a large shaft of the generator, and the four cladding plates can increase the stability during clamping while grounding is achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor. Wherein:
fig. 1 is a schematic overall structure diagram of a large shaft grounding device of a braided generator according to the invention.
Fig. 2 is a rear view of the overall structure of the large shaft grounding device of the brush-type generator according to the present invention.
Fig. 3 is an exploded view of a cladding plate structure of the braided generator main shaft grounding device of the present invention.
Fig. 4 is a schematic structural diagram of a sliding component of the large shaft grounding device of the braided generator of the invention.
Fig. 5 is an enlarged schematic view of a part a of the structure in fig. 4 of the grounding device for the large shaft of the braided generator according to the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying figures of the present invention are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Furthermore, the present invention is described in detail with reference to the drawings, and in the detailed description of the embodiments of the present invention, the cross-sectional view illustrating the structure of the device is not enlarged partially according to the general scale for convenience of illustration, and the drawings are only exemplary and should not be construed as limiting the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
Example 1
Referring to fig. 1-4, the invention discloses a grounding device for a large shaft of a brush-braid generator, which comprises a bracket assembly 100, in this embodiment, the bracket assembly 100 comprises a bottom bracket 101, the bottom bracket 101 is horizontally placed on the ground, an upper end bracket 102 is slidably connected on the bottom bracket 101, the lower end of the upper end bracket 102 is rectangular, the upper end is folded upwards to form a trapezoid-like table shape, and a sliding piece is arranged between the upper end bracket 102 and the bottom bracket 101.
Preferably, in this embodiment, the sliding part includes a lead screw disposed on the bottom bracket 101, the lead screw is horizontally disposed, a matching hole matched with the lead screw is disposed at the lower end of the upper bracket 102, the matching hole and the lead screw are connected by a thread, one end of the lead screw is connected to the motor, a dovetail block is disposed at the lower end of the upper bracket 102, a dovetail groove matched with the dovetail block is disposed on the surface of the bottom bracket 101, the dovetail groove is disposed along the length direction of the lead screw, and it can be ensured that the lead screw rotates to drive the upper bracket 102 to slide on the bottom bracket 101.
Further, the present invention further comprises a rack bar assembly 200, which comprises a first bending arm 201 disposed on the upper end bracket 102, a second bending arm 202 disposed on the upper end bracket 102, and an adjusting member disposed on the upper end bracket 102, wherein the first bending arm 201 and the second bending arm 202 are in the shape of a semicircular plate, and are both vertically disposed on the upper end bracket 102, and both the first bending arm 201 and the second bending arm 202 can slide on the upper end of the upper end bracket 102, and the sliding path is arc-shaped.
Further, the present invention further includes a grounding assembly 300, in this embodiment, the grounding assembly 300 is disposed at the end portions of the first bending arm 201 and the second bending arm 202, the extension rod 203 is bent outwards on each of the first bending arm 201 and the second bending arm 202, and the grounding assembly 300 is disposed on the extension rod 203.
Preferably, the grounding assembly 300 includes a connecting block 301 disposed on the extension rod 203, a cladding plate 302 disposed on the connecting block 301, and a carbon brush body 303 disposed on a surface of the cladding plate 302, the cladding plate 302 is arc-shaped, the surface of the cladding plate 302 is hinged with a plurality of hinge plates 304, the carbon brush body 303 is uniformly disposed on each hinge plate 304, a hinge 305 is disposed between every two adjacent hinge plates 304, wherein the hinge 305 includes a hinge ball 305a disposed on a side wall of the hinge plate 304 and a semi-spherical groove 305b disposed on a side wall of the hinge plate 304 and engaged with the hinge ball 305a, the lower end of the hinge plate 304 is also provided with the hinge ball 305a, the upper surface of the cladding plate 302 is provided with an ear plate 306, a circular groove 307 engaged with the hinge ball 305a is disposed on a side wall of the ear plate 306, and a swing notch 308 is disposed on a side wall of the ear plate 306.
The operation process comprises the following steps: an operator can drive the first bending arm 201 and the second bending arm 202 to slide, so that the first bending arm 201 and the second bending arm 202 are matched with each other to clamp a large shaft of the generator, and the four cladding plates 302 can increase the stability during clamping while the grounding is achieved.
Example 2
Referring to fig. 3-5, this embodiment differs from the first embodiment in that: the sliding component 401 comprises an adjusting ring 402 rotatably connected to the arc-shaped plate 400, threaded holes 403 formed at two ends of the adjusting ring 402, and an adjusting rod 404 threadedly connected in the adjusting ring 402, wherein a short rod head 405 is arranged at an end of the adjusting rod 404, short rod grooves matched with the short rod head 405 are formed in the first bending arm 201 and the second bending arm 202, a rotating component 500 is arranged on the adjusting ring 402, the rotating component 500 comprises a first gear 501 coaxially arranged on the adjusting ring 402, a second gear 502 meshed with the first gear 501, and a middle bearing rod 503 extending from a rotating shaft of the second gear 502, a locking wheel 504 is coaxially arranged at a rear end of the middle bearing rod 503, a plurality of clamping teeth 505 are arranged outside the locking wheel 504, a locking block 506 is sleeved on the middle bearing rod 503, an elastic part 507 is arranged between the locking block 506 and the locking wheel 504, a locking disc 600 is rotatably connected to the arc-shaped plate 400, a circular groove 601 matched with the locking wheel 504 is formed in the locking disc 600, the side wall of the circular groove 601 is provided with a plurality of clamping tooth grooves 602 matched with the clamping teeth 505, the rear end of the locking disc 600 is provided with a stepping motor 603, the middle bearing rod 503 is connected with a sleeve 604 in a sliding manner, the sleeve 604 is connected with the locking wheel 504, an elastic part 507 is arranged between the sleeve 604 and the locking block 506, the upper end support 102 is provided with a locking part 700, the locking part 700 comprises a clamping ring hinged on the sleeve 604, a swinging rod 702 arranged at the rear end of the clamping ring and a tension sensor arranged in the clamping block, the front end of the tension sensor is electrically connected with an electric cylinder 703, the electric cylinder 703 is hinged with the rear end of the swinging rod 702, the end part of the short rod head 405 is provided with a gear 704, the short rod groove is provided with a rack 705 meshed with the gear 704, and the rack 705 is arranged in an arc shape.
Specifically, in this embodiment, the sliding component 401 includes the adjusting ring 402 that is rotatably connected on the arc 400, the rotation plane of the adjusting ring 402 is vertically arranged, threaded holes 403 are opened at both ends of the adjusting ring 402, pull rods are connected with both threaded holes 403, a short rod head 405 is arranged at the end of each pull rod, and a short rod groove matched with the short rod head 405 is opened on the first bending arm 201 and the second bending arm 202.
Further, a rotating member 500 is provided on the adjusting ring 402, in this embodiment, the rotating member 500 includes a first gear 501 coaxially provided with the adjusting ring 402, a second gear 502 is rotatably connected to the upper bracket 102, the second gear 502 is always engaged with the first gear 501, a center bearing rod 503 extends from a rotating shaft of the second gear 502, a locking wheel 504 is coaxially provided at a rear end of the center bearing rod 503, wherein a plurality of teeth 505 are provided on an outer peripheral wall of the locking wheel 504, a locking block 506 is sleeved on the center bearing rod 503, the locking block 506 is fixed to the upper bracket 102, a hole for the center bearing rod 503 to extend into is formed in the middle of the center bearing rod 503, a sleeve 604 is slidably connected to the center bearing rod 503, the sleeve 604 is connected to the locking wheel 504, further, the locking wheel 504 is slidably provided on the center bearing rod 503, an elastic member 507 is provided between the sleeve 604 and the locking block 506, in this embodiment, the elastic member 507 is a spring, and always pulls the sleeve 604 to slide towards the direction close to the locking block 506; the locking disc 600 is connected to the fixture block in a rotating mode, a circular groove 601 matched with the locking wheel 504 is formed in the locking disc 600, a plurality of clamping tooth grooves 602 matched with the clamping teeth 505 are formed in the side wall of the circular groove 601, the rear end of the locking disc 600 is provided with the stepping motor 603, the stepping motor 603 drives the locking disc 600 to rotate all the time, the locking disc 600 can be clamped into the locking disc 600 all the time, the locking disc 600 can drive the locking wheel 504 to rotate all the time, the rotation of the middle bearing rod 503 is used for driving the second gear 502, the second gear 502 drives the first gear 501 to rotate, and the adjusting ring 402 is driven to rotate.
Furthermore, a locking member 700 is arranged on the upper end support 102, the locking member 700 comprises a clamp ring hinged on the sleeve 604, a swing rod 702 arranged at the rear end of the clamp ring, and a tension sensor arranged on the upper end support 102, the front end of the tension sensor is electrically connected with an electric cylinder 703, the electric cylinder 703 is hinged with the rear end of the swing rod 702, a gear 704 is arranged at the end part of the short rod head 405, a rack 705 meshed with the gear 704 is arranged in the short rod groove, and the rack 705 is arranged in an arc shape.
The rest of the structure is the same as in example 1.
The operation process comprises the following steps: when the locking wheel 504 is clamped into the locking disc 600, the locking disc 600 can always drive the locking wheel 504 to rotate, at the moment, the rotation of the middle bearing rod 503 is utilized to drive the second gear 502, the second gear 502 drives the first gear 501 to rotate, and further drives the adjusting ring 402 to rotate, and further drives the rotation of the stub head 405, so that the gear 704 at the front end of the stub head 405 is driven to rotate, when the gear 704 rotates, the sliding of the rack 705 is synchronously driven, and the rack 705 is in an arc shape, so that the first bending arm 201 or the second bending arm 202 can be driven to rotate, the positions of the carbon brush bodies 303 on the first bending arm 201 and the second bending arm 202 are changed, and the positions of the carbon brush bodies 303 which are grounded are realized according to different states of specific use.
It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims (10)

1. The utility model provides a big axle earthing device of brush pigtail formula generator which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the bracket component (100) comprises a bottom bracket (101), an upper end bracket (102) connected to the bottom bracket (101) in a sliding manner, and a sliding piece arranged between the upper end bracket (102) and the bottom bracket (101);
the hack lever assembly (200) comprises a first bending arm (201) arranged on the upper end bracket (102), a second bending arm (202) arranged on the upper end bracket (102) and an adjusting component arranged on the upper end bracket (102); and the number of the first and second groups,
a grounding assembly (300), wherein the grounding assembly (300) is arranged at the end parts of the first bending arm (201) and the second bending arm (202).
2. A braided generator large shaft grounding device according to claim 1, wherein: all outwards bent out on first bending arm (201) and second bending arm (202) has extension rod (203), ground connection subassembly (300) set up on extension rod (203), ground connection subassembly (300) are including setting up connecting block (301) on extension rod (203), cladding plate (302) and carbon brush body (303) of setting on cladding plate (302) surface on cladding plate (301) on connecting block (301), cladding plate (302) are arc.
3. A braided generator large shaft grounding device according to claim 2, wherein: the surface of the cladding plate (302) is hinged with a plurality of hinged plates (304), the carbon brush body (303) is uniformly arranged on each hinged plate (304), the lower end of each hinged plate (304) is provided with a hinged piece (305),
wherein the hinge piece (305) comprises a hinge ball (305a) arranged on the side wall of the hinge plate (304) and a semi-spherical groove body (305b) arranged on the cladding plate (302) and matched with the hinge ball (305 a).
4. A braided generator large shaft grounding device according to claim 2 or 3, wherein: the hinge plate is characterized in that a hinge ball (305a) is also arranged at the lower end of the hinge plate (304), an ear plate (306) is arranged on the upper surface of the cladding plate (302), a circular groove (307) matched with the hinge ball (305a) is formed in the side wall of the ear plate (306), and a swing notch (308) is formed in the side wall of the ear plate (306).
5. A braided generator large shaft grounding device according to claim 1, wherein: be provided with arc (400) on upper end support (102), first bending arm (201) and second bending arm (202) slide and connect on arc (400), the guide rail groove has been seted up on arc (400), be provided with on first bending arm (201) and second bending arm (202) with guide rail groove complex slider, be provided with slide part (401) on arc (400).
6. A braided generator large shaft grounding device according to claim 5, wherein: slide part (401) including rotate the adjusting ring (402) of connection on arc (400), set up screw hole (403) and threaded connection the regulation pole (404) in adjusting ring (402) at adjusting ring (402) both ends, it is provided with quarter butt head (405) to adjust pole (404) tip, set up on first bending arm (201) and second bending arm (202) with quarter butt head (405) complex quarter butt groove, be provided with on adjusting ring (402) and rotate piece (500).
7. The braided generator large shaft grounding device of claim 6, wherein: the rotating part (500) comprises a first gear (704) (501) which is coaxially arranged on the adjusting ring (402), a second gear (704) (502) which is meshed with the first gear (704) (501), and a middle bearing rod (503) which extends out of a rotating shaft of the second gear (704) (502), a locking wheel (504) is coaxially arranged at the rear end of the middle bearing rod (503),
the locking wheel (504) is externally provided with a plurality of clamping teeth (505), the middle bearing rod is sleeved with a locking block (506), and an elastic piece (507) is arranged between the locking block (506) and the locking wheel (504).
8. A braided generator large shaft grounding device according to claim 7, wherein: the arc-shaped plate (400) is rotatably connected with a locking disc (600), a circular groove (601) matched with the locking wheel (504) is formed in the locking disc (600), a plurality of clamping tooth (505) grooves matched with the clamping teeth (505) are formed in the side wall of the circular groove (601), a stepping motor (603) is arranged at the rear end of the locking disc (600),
wherein, the middle bearing rod (503) is connected with a sleeve (604) in a sliding way, the sleeve (604) is connected with the locking wheel (504), and the elastic piece (507) is arranged between the sleeve (604) and the locking block (506).
9. A braided generator large shaft grounding device according to claim 8, wherein: the fixture block is internally provided with a locking piece (700), the locking piece (700) comprises a clamping ring hinged to the sleeve (604), a swinging rod (702) arranged at the rear end of the clamping ring and a tension sensor arranged on the upper end support (102), the front end of the tension sensor is electrically connected with an electric cylinder (703), and the electric cylinder (703) is hinged to the rear end of the swinging rod (702).
10. A braided-generator large-shaft grounding device according to claim 6 or 9, wherein: the end part of the short rod head (405) is provided with a gear (704), a rack (705) meshed with the gear (704) is arranged in the short rod groove, and the rack (705) is arranged in an arc shape.
CN202210374531.1A 2022-04-11 2022-04-11 Braided generator main shaft grounding device Pending CN114696545A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210374531.1A CN114696545A (en) 2022-04-11 2022-04-11 Braided generator main shaft grounding device

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Application Number Priority Date Filing Date Title
CN202210374531.1A CN114696545A (en) 2022-04-11 2022-04-11 Braided generator main shaft grounding device

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CN114696545A true CN114696545A (en) 2022-07-01

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202444381U (en) * 2012-03-13 2012-09-19 中国神华能源股份有限公司 Rotating shaft grounding device for generator
WO2018234023A1 (en) * 2017-06-20 2018-12-27 Valeo Equipements Electriques Moteur Brush holder for a rotating electrical machine
CN209642504U (en) * 2019-05-31 2019-11-15 华能国际电力股份有限公司长兴电厂 A kind of generator's motor shaft earthing or grounding means
CN209805617U (en) * 2018-10-21 2019-12-17 大唐临清热电有限公司 Novel turbonator large shaft grounding device
CN212435538U (en) * 2020-07-22 2021-01-29 大唐华银电力股份有限公司金竹山火力发电分公司 Generator main shaft earthing device
CN214957373U (en) * 2021-06-03 2021-11-30 华能伊敏煤电有限责任公司 600MW generator brush pigtail formula earthing device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202444381U (en) * 2012-03-13 2012-09-19 中国神华能源股份有限公司 Rotating shaft grounding device for generator
WO2018234023A1 (en) * 2017-06-20 2018-12-27 Valeo Equipements Electriques Moteur Brush holder for a rotating electrical machine
CN209805617U (en) * 2018-10-21 2019-12-17 大唐临清热电有限公司 Novel turbonator large shaft grounding device
CN209642504U (en) * 2019-05-31 2019-11-15 华能国际电力股份有限公司长兴电厂 A kind of generator's motor shaft earthing or grounding means
CN212435538U (en) * 2020-07-22 2021-01-29 大唐华银电力股份有限公司金竹山火力发电分公司 Generator main shaft earthing device
CN214957373U (en) * 2021-06-03 2021-11-30 华能伊敏煤电有限责任公司 600MW generator brush pigtail formula earthing device

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