CN202495849U - Flexible connecting device of conductive rod of generator rotor - Google Patents
Flexible connecting device of conductive rod of generator rotor Download PDFInfo
- Publication number
- CN202495849U CN202495849U CN2012201254637U CN201220125463U CN202495849U CN 202495849 U CN202495849 U CN 202495849U CN 2012201254637 U CN2012201254637 U CN 2012201254637U CN 201220125463 U CN201220125463 U CN 201220125463U CN 202495849 U CN202495849 U CN 202495849U
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- CN
- China
- Prior art keywords
- shaft
- flexible connecting
- copper bars
- conducting rod
- connecting 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a flexible connecting device of conductive rods of a generator rotor. The flexible connecting device comprises connecting copper bars. The connecting copper bars are V-shaped flexible connecting copper bars; there are provided two V-shaped flexible connecting copper bars which are symmetrically arranged inside an exciter shaft or collector ring shaft. One end of each connecting copper bars are connected with a conductive rod inside the exciter shaft or collector ring shaft by bolts, and the other end of each connecting copper bars are connected with a conductive rod inside a generator shaft; and operation holes and vent holes with different radial positions are arranged on a shaft of the exciter shaft or collector ring shaft. The flexible connecting device of the utility model is advantaged in that: the assembling process is simple, and the assembly precision and difficulty in operation are reduced; flexible structures of the connecting copper bars can absorb deformation caused by the heating of the conductive rods at both ends, thereby, eliminating harmful thermal stress; air friction loss and noise are reduced, such that the flexible connecting device is less susceptible to foreign body contamination, thereby, improving operating reliability; the vent holes and the operation holes form a cooling air duct together so as to perform ventilation cooling on the V-shaped connecting copper bars and the conductive rods, thereby, reducing temperature and improving current conduction capability.
Description
Technical field
The utility model relates to technical field of generators, is specifically related to a kind of flexible connecting device of generator amature conducting rod.
Background technology
Generator amature conducting rod flexible connecting device is that exciting current is caused the current connection apparatus of generator amature by current collection annulate shaft or exciter shaft, and existing generator amature conducting rod jockey has two kinds of technical schemes:
One, on current collection annulate shaft or the exciter shaft end face contact copper bar is set; The generator amature end face is provided with the contact copper bar equally; With bolt current collection annulate shaft or exciter shaft are put together on generator amature during assembling; The contact copper bar at two ends abuts against together thereupon, and exciting current is conducted to generator amature by current collection annulate shaft or exciter shaft.Device mainly is made up of the contact copper bar at two ends.Because the contact copper bar at two ends is the rigidity contact, the position of related features of contact copper bar and axial end requires very strict, assembly technology difficulty, the corresponding raising of technology cost.If the overproof meeting of fitted position causes the copper bar loose contact, electrical loss increases, and the contact copper bar is to be completely enclosed within rotating shaft inside, the heat radiation difficulty.
Two, an end of current collection annulate shaft or exciter shaft is provided with radially contact screw; Generator amature one end is provided with radially contact screw equally; At current collection annulate shaft or exciter shaft after generator amature puts together on; Link together with connecting the radially contact screw of copper bar, electric current is conducted to generator amature by current collection annulate shaft or exciter shaft two ends.Since the radially contact screw at two ends with is connected copper bar and all gives prominence to the surface of rotating shaft, will produce the windage loss during operation, the reduction generator efficiency; Also can increase noise simultaneously, become an important noise source of generator; Radially contact screw be connected copper bar and also receive outside contamination easily, cause the rotor ground fault fault, influence the safe operation of generator.
The utility model content
To above-mentioned prior art, the technical problem that the utility model will solve is: generator amature conducting rod jockey assembly technology requires high, heat radiation difficulty, influence generator efficiency, noise greatly, have a problem such as potential safety hazard.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of flexible connecting device of generator amature conducting rod comprises the connection copper bar, it is characterized in that; Said connection copper bar is V-shaped connection copper bar; This flexibly connects copper bar has two, is arranged symmetrically in the inside of exciter shaft or current collection annulate shaft, and the conducting rod in an end and exciter shaft or the current collection annulate shaft is closing; Conducting rod in the other end and the generator shaft is closing, and two connect the positive and negative electrode that copper bar connects conducting rod respectively; Said exciter shaft or current collection annulate shaft are provided with handle hole and ventilation hole, and the perforate radial position of this handle hole and ventilation hole is different.
The distance in said handle hole and axle center is greater than the distance in said ventilation hole and axle center.
Said operation hole count is 2, and symmetric arrangement.
Said ventilation hole adds up to even number, and symmetric arrangement.
Compared with prior art, the beneficial effect of the utility model shows:
One, V-type flexibly connects copper bar and greatly reduces the rigging position required precision that connects copper bar two ends conducting rod, has simplified assembly technology, has reduced operation easier; Flexible structure can absorb the distortion that two ends conducting rod heating causes, and eliminates harmful thermal stress;
Two, connect the inside that copper bar is installed in exciter shaft or current collection annulate shaft; The outer surface of axle is a smooth surface; Eliminate contact screw during operation and be connected windage loss and the noise that the outstanding axle of copper bar surface type becomes, improved generator efficiency, reduced the noise of generator; Avoided connecting the rotor ground fault fault that the copper bar pollution causes, improved operational reliability;
Three, ventilation hole forms the turnover air channel with handle hole, utilizes the centrifugal pressure reduction between two holes that the axle rotation forms to produce natural draft during operation, and V-type is connected the cooling of ventilating of copper bar and conducting rod, plays the effect that reduces temperature and raising conduction of current ability.
Description of drawings
Fig. 1 is the longitudinal section of the utility model;
Fig. 2 is the sectional elevation of the utility model;
Reference numeral: 1 flexibly connects copper bar for V-type for ventilation hole, 7 for handle hole, 6 for the conducting rod in the generator shaft, 5 for the conducting rod in current collection annulate shaft or the exciter shaft, 4 for generator shaft, 3 for current collection annulate shaft or exciter shaft, 2.
Embodiment
To combine accompanying drawing and embodiment that the utility model is done further to describe below.
A kind of flexible connecting device of generator amature conducting rod; Comprise the connection copper bar; Said connection copper bar is the V-shaped copper bar (7) that flexibly connects, and this V-type flexibly connects copper bar has two, is arranged symmetrically in the inside of exciter shaft or current collection annulate shaft (1); An end and exciter shaft or the conducting rod (3) in the current collection annulate shaft that this V-type flexibly connects copper bar be closing, and the interior conducting rod (4) of the other end and generator shaft (2) is closing; The axle of said exciter shaft or current collection annulate shaft is provided with handle hole (5) and ventilation hole (6), and said handle hole is different with the radial position of ventilation hole perforate on the axle outer surface.Utilize the centrifugal pressure differential air between two holes that the axle rotation forms mobile between ventilation hole (air intake) and handle hole (air-out) during operation, said V-type is flexibly connected the cooling of ventilating of copper bar (7) and conducting rod.
Embodiment
The fore-end that current collection annulate shaft or exciter shaft are connected with generator shaft is a cavity structure, and cavity sidewalls has handle hole, and is optimum for offering two handle holes of symmetry; Current collection annulate shaft or exciter shaft put together on generator shaft through bolt, and the conducting rod in current collection annulate shaft or the exciter shaft stretches out cavity floor.Through handle hole two V-types are flexibly connected the copper bar symmetry and install, the conducting rod with both sides puts together on respectively, and conducting rod in current collection annulate shaft or the exciter shaft and the conducting rod in the generator shaft are coupled together.One of them V-type flexibly connects copper bar and puts together on the positive pole of conducting rod, and another V-type flexibly connects copper bar and puts together on the negative pole of conducting rod.
Also have ventilation hole in the position of 90o at interval with handle hole on the cavity sidewalls of exciter shaft or current collection annulate shaft; Optimum is that symmetry is offered the ventilation hole that adds up to even number; Handle hole is different with the radial position of ventilation hole perforate on the axle outer surface, and the distance in handle hole and axle center is greater than the distance in ventilation hole and axle center.Ventilation hole is symmetrically distributed and forms air duct with handle hole on the axle.Because handle hole is different with the radial position of ventilation hole perforate; The centrifugal pressure differential air that utilizes axle to rotate between two holes that form during operation flows between ventilation hole (air intake) and handle hole (double as exhaust vent); V-type is connected the cooling of ventilating of copper bar and conducting rod; To strengthen heat-sinking capability, reduce copper bar and conducting rod temperature, improve current carrying capacity.
Claims (4)
1. the flexible connecting device of a generator amature conducting rod comprises the connection copper bar, it is characterized in that; Said connection copper bar is V-shaped connection copper bar; This flexibly connects copper bar has two, is arranged symmetrically in the inside of exciter shaft or current collection annulate shaft, and the conducting rod in an end and exciter shaft or the current collection annulate shaft is closing; Conducting rod in the other end and the generator shaft is closing, and two connect the positive and negative electrode that copper bar connects conducting rod respectively; Said exciter shaft or current collection annulate shaft are provided with handle hole and ventilation hole, and this handle hole is different with the radial position of ventilation hole perforate.
2. the flexible connecting device of generator amature conducting rod according to claim 1 is characterized in that, the distance in said handle hole and axle center is greater than the distance in said ventilation hole and axle center.
3. the flexible connecting device of generator amature conducting rod according to claim 1 is characterized in that, said operation hole count is 2, and symmetric arrangement.
4. the flexible connecting device of generator amature conducting rod according to claim 1 is characterized in that, said ventilation hole adds up to even number, and symmetric arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201254637U CN202495849U (en) | 2012-03-29 | 2012-03-29 | Flexible connecting device of conductive rod of generator rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201254637U CN202495849U (en) | 2012-03-29 | 2012-03-29 | Flexible connecting device of conductive rod of generator rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202495849U true CN202495849U (en) | 2012-10-17 |
Family
ID=47002061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201254637U Withdrawn - After Issue CN202495849U (en) | 2012-03-29 | 2012-03-29 | Flexible connecting device of conductive rod of generator rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202495849U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611253A (en) * | 2012-03-29 | 2012-07-25 | 东方电气集团东方电机有限公司 | Flexible connecting device for generator rotor conducting rod |
| CN103795193A (en) * | 2014-02-17 | 2014-05-14 | 哈尔滨电机厂有限责任公司 | Hydro-generator three-phase high-capacity alternating-current collecting ring device |
-
2012
- 2012-03-29 CN CN2012201254637U patent/CN202495849U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611253A (en) * | 2012-03-29 | 2012-07-25 | 东方电气集团东方电机有限公司 | Flexible connecting device for generator rotor conducting rod |
| CN102611253B (en) * | 2012-03-29 | 2014-01-29 | 东方电气集团东方电机有限公司 | Flexible connecting device for generator rotor conducting rod |
| CN103795193A (en) * | 2014-02-17 | 2014-05-14 | 哈尔滨电机厂有限责任公司 | Hydro-generator three-phase high-capacity alternating-current collecting ring device |
| CN103795193B (en) * | 2014-02-17 | 2015-12-30 | 哈尔滨电机厂有限责任公司 | Hydraulic generator three-phase Large Copacity exchanges collector machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121017 Effective date of abandoning: 20140129 |
|
| RGAV | Abandon patent right to avoid regrant |