CN210380444U

CN210380444U - Fixing mechanism for interpolar connecting wire of hydraulic generator rotor

Info

Publication number: CN210380444U
Application number: CN201921576932.5U
Authority: CN
Inventors: 翁焰成
Original assignee: Hunan Vanguard Group Co ltd
Current assignee: Hunan Vanguard Group Co ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-04-21
Anticipated expiration: 2029-09-19

Abstract

The utility model provides a fixing mechanism for a rotor interelectrode connecting wire of a hydraulic generator, which comprises a pull rod, a lead seat plate, an insulating cover plate, an insulating sleeve, a fixing bolt, a lead pressing plate and a square nut, wherein the connecting wire is positioned between the lead seat plate and the lead pressing plate, the lead seat plate and two ends of the lead pressing plate are respectively connected and fastened through the fixing bolt, the insulating cover plates are respectively arranged between the connecting wire and the lead seat plate and between the connecting wire and the lead pressing plate, and the insulating sleeve is sleeved on a screw rod of the fixing bolt; the pull rod upper end is for having the tapered end cover and being connected with the bell jar cooperation that is located lead wire bedplate central point and puts, and pull rod lower extreme surface is provided with the external screw thread and with square nut threaded connection, and the square nut setting is in the T shape kerve of yoke, the utility model provides a fixing mechanism is applied to hydraulic generator's rotor assembly, is connected this fixing mechanism and yoke fastening, and centrifugal force when having avoided the unit to rotate and lead to rotor interelectrode connecting wire not hard up phenomenon to appear.

Description

Fixing mechanism for interpolar connecting wire of hydraulic generator rotor

Technical Field

The utility model belongs to the technical field of horizontal hydraulic generator technique and equipment technique and specifically relates to a hydraulic generator rotor interelectrode connecting wire fixed establishment is related to.

Background

When the hydraulic generator operates in a power station, when the rotor rotates, all rotating parts bear the action of centrifugal force, particularly the rotor interpolar connecting wires and the rotor interpolar connecting wires which are not fixed are easy to throw out under the action of the centrifugal force, so that power station accidents are caused.

The traditional interelectrode connecting wire is fixed by adopting an interelectrode supporting plate, namely, a lead binding groove is formed in the interelectrode supporting plate, the interelectrode connecting wire is bound on the interelectrode supporting plate by using a glass wire rope, and the interelectrode supporting plate is supported at a pole shoe of a magnetic pole; the structure is applied to medium-low speed or small-sized hydraulic generators, and the structure is adopted on a high-speed or large-sized unit, so that the centrifugal force generated by the interelectrode connecting wire is larger, and the phenomena of breakage of a glass fiber rope or breakage of an interelectrode supporting plate and the like are easily caused, so that the interelectrode connecting wire is thrown out, and power station accidents are caused.

SUMMERY OF THE UTILITY MODEL

The above-mentioned problem to prior art exists, the utility model provides a hydrogenerator rotor interelectrode connecting wire fixed establishment is applied to among hydrogenerator's the rotor assembly, will be used for fixed rotor interelectrode connecting wire's fixed establishment and yoke firmly to link together, centrifugal force when having avoided the unit rotation effectively and lead to rotor interelectrode connecting wire not hard up phenomenon to appear, has guaranteed the normal operating of unit.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a fixing mechanism for a hydro-generator rotor interelectrode connecting wire comprises a pull rod, a lead seat plate, an insulating cover plate, an insulating sleeve, a fixing bolt, a lead pressing plate and a square nut, wherein the hydro-generator rotor interelectrode connecting wire is positioned between the lead seat plate and the lead pressing plate, two ends of the lead seat plate and two ends of the lead pressing plate are respectively connected and fastened through the fixing bolt, the insulating cover plate is respectively arranged between the hydro-generator rotor interelectrode connecting wire and the lead seat plate as well as between the hydro-generator rotor interelectrode connecting wire and the lead pressing plate, and the insulating sleeve is sleeved on a screw rod of the fixing bolt; the pull rod upper end is for having the tapered end cover to with be located the bell jar cooperation that lead wire bedplate central point put is connected, pull rod lower extreme surface is provided with the external screw thread, and with square nut threaded connection, square nut sets up in the T shape tail groove of the yoke of hydraulic generator rotor.

In one embodiment, the upper end outer side wall of the T-shaped tail groove is welded with a boss with a through hole at the center, a fixing nut is arranged above the boss, the outer diameter of the fixing nut is larger than the diameter of the center hole of the boss, the lower end of the pull rod sequentially penetrates through the center holes of the fixing nut and the boss from top to bottom and then is in threaded connection with the square nut, the square nut is welded and fixed in the T-shaped tail groove, and the fixing nut is matched with the boss and is in threaded connection and fastening with the lower end of the pull rod.

Compared with the prior art, the utility model provides a pair of hydrogenerator rotor interelectrode connecting wire fixed establishment for hydrogenerator rotor interelectrode connecting wire's is fixed, has solved the problem that hydrogenerator rotor interelectrode connecting wire produced when the rotor rotates centrifugal force is too big and throw away, has ensured the normal operating of unit. The lead frame comprises a pull rod, a lead seat plate, an insulating cover plate, an insulating sleeve, a fixing bolt, a lead pressing plate, a fixing nut, a boss and a square nut; after the interelectrode connecting wires of the adjacent magnetic poles are lapped, the interelectrode connecting wires are compressed through the lead seat plate and the lead pressing plate, in order to ensure the insulation performance requirement of the connecting wires, an insulation cover plate is padded between the connecting wires and the lead seat plate and between the wires and the lead pressing plate, the lead seat plate and the lead pressing plate are compressed by adopting a fixing bolt, and an insulation sleeve is sleeved on a screw rod of the fixing bolt to enhance the insulation performance of the bolt and the connecting wires; the upper end of the pull rod is provided with a taper end cover which is used for being matched and connected with a taper groove on the lead seat plate, so that the lead seat plate is tensioned, the lower end of the pull rod is of a thread structure and is combined with a square nut, the square nut is arranged in a T tail groove of a magnetic yoke, the square nut is clamped by the T tail groove structure, so that the pull rod is pulled, meanwhile, in order to prevent the pull rod from rotating, a lug boss and the square nut which the pull rod penetrates through are respectively welded on the magnetic yoke, and therefore, the centrifugal force acting on the interelectrode connecting wire due to the rotation of a rotor is further transmitted to the magnetic yoke through the pull rod, so that the interelectrode connecting wire is prevented from; the magnetic yoke is of a full-circle structure, has strong integral rigidity, and is an important part for the hydraulic generator to transmit torque and bear various unbalanced forces. The utility model provides a pair of hydroelectric generator rotor interelectrode connecting wire fixed establishment, overall structure and installation are reliable with reliable and simple and the security performance.

Drawings

FIG. 1 is a schematic view of a partial structure of a rotor mechanism of a hydraulic generator;

fig. 2 is a partially sectional structural view of the fixing mechanism for the inter-pole connecting wire of the hydro-generator rotor, as viewed from a-a in fig. 1.

Detailed Description

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

As shown in fig. 1-2, for convenience of description, the references of "up", "down", "left", "right", "front" and "rear" directions in the present invention are based on the directions shown in fig. 2;

a fixing mechanism for a rotor interelectrode connecting wire of a hydraulic generator comprises a pull rod 1, a lead seat plate 2, an insulating cover plate 3, an insulating sleeve 4, a fixing bolt 5, a lead pressing plate 6 and a square nut 9, wherein the rotor interelectrode connecting wire 10 of the hydraulic generator is positioned between the lead seat plate 2 and the lead pressing plate 6, the two ends of the lead seat plate 2 and the lead pressing plate 6 are respectively connected and fastened through the fixing bolt 5, the insulating cover plate 3 is respectively arranged between the rotor interelectrode connecting wire 10 of the hydraulic generator and the lead seat plate 2 and between the rotor interelectrode connecting wire 10 of the hydraulic generator and the lead pressing plate 6, and the insulating sleeve 4 is sleeved; the upper end of the pull rod 1 is provided with a tapered end cover and is matched and connected with a tapered groove positioned at the central position of the lead seat plate 2, the lower end surface of the pull rod 1 is provided with an external thread and is in threaded connection with a square nut 9, and the square nut 9 is arranged in a T-shaped tail groove 11 of a magnetic yoke of a hydraulic generator rotor.

Preferably, the boss 8 with a through hole at the center is welded on the outer side wall of the upper end of the T-shaped tail groove 11, the fixing nut 7 is arranged above the boss 8, the outer diameter of the fixing nut 7 is larger than the diameter of the center hole of the boss 8, the lower end of the pull rod 1 sequentially penetrates through the fixing nut 7 and the center hole of the boss 8 from top to bottom and then is in threaded connection with the square nut 9, the square nut 9 is welded and fixed in the T-shaped tail groove 11, and the fixing nut 7 is matched with the boss 8 and is in threaded connection and fastening with the lower end of.

The utility model provides a hydro-generator rotor interelectrode connecting wire fixed establishment's theory of operation is, designs a hydro-generator rotor interelectrode connecting wire fixed establishment, and this mechanism is formed by pull rod 1, lead wire bedplate 2, insulating cover plate 3, insulation support 4, fixing bolt 5, lead wire clamp plate 6, fixation nut 7, boss 8 and the equipment of square nut 9. During assembly, after the interelectrode connecting wires 10 of adjacent magnetic poles are lapped, the interelectrode connecting wires 10 are compressed through the lead seat plate 2 and the lead pressing plate 6, in order to ensure the insulation performance requirement of the connecting wires 10, an insulation cover plate 3 is padded between the connecting wires 10 and the lead seat plate 2 and between the connecting wires 10 and the lead pressing plate 6, the lead seat plate 2 and the lead pressing plate 6 are compressed by adopting a fixing bolt 5, and an insulation sleeve 4 is sleeved on a screw rod of the fixing bolt 5 to enhance the insulation performance of the fixing bolt 5 and the connecting wires 10; the 1 upper end of pull rod is provided with and has the tapering end cover, be used for being connected with the bell groove cooperation on the lead wire bedplate 2, thereby take turns lead wire bedplate 2 taut, the lower extreme is the helicitic texture and closes with square nut 9, square nut 9 is installed in the T tail groove 11 of yoke, utilize 11 structures in T tail groove to die square nut 9 card, thereby hold pull rod 1, simultaneously for preventing pull rod 1 from rotating, the boss 8 with pull rod 1 and square nut 9 weld respectively on the yoke, thereby further transmit the yoke through pull rod 1 because of the centrifugal force that the rotor rotated on using interelectrode connecting wire 10, thereby make interelectrode connecting wire 10 not extremely throw away because of centrifugal force, the safety of unit has been guaranteed.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A fixing mechanism for a hydro-generator rotor interelectrode connecting wire is characterized by comprising a pull rod, a lead base plate, an insulating cover plate, an insulating sleeve, a fixing bolt, a lead pressing plate and a square nut, wherein the hydro-generator rotor interelectrode connecting wire is positioned between the lead base plate and the lead pressing plate, two ends of the lead base plate and two ends of the lead pressing plate are respectively connected and fastened through the fixing bolt, the insulating cover plate is respectively arranged between the hydro-generator rotor interelectrode connecting wire and the lead base plate and between the hydro-generator rotor interelectrode connecting wire and the lead pressing plate, and the insulating sleeve is sleeved on a screw rod of the fixing bolt; the pull rod upper end is for having the tapered end cover to with be located the bell jar cooperation that lead wire bedplate central point put is connected, the lower extreme surface of pull rod is provided with the external screw thread, and with square nut threaded connection, square nut sets up in the T shape tail groove of the yoke of hydraulic generator rotor.

2. The hydroelectric generator rotor interpole connecting wire fixing mechanism of claim 1, wherein a boss with a through hole at the center is welded on the outer side wall of the upper end of the T-shaped tail groove, a fixing nut is arranged above the boss, the outer diameter of the fixing nut is larger than the diameter of the center hole of the boss, the lower end of the pull rod sequentially penetrates through the center holes of the fixing nut and the boss from top to bottom and then is in threaded connection with a square nut, the square nut is welded and fixed in the T-shaped tail groove, and the fixing nut is matched with the boss and fastened with the lower end of the pull rod in threaded connection.