Permanent magnet type vacuum circuit-breaker
Technical field
The application relates to breaker technical field, particularly relates to a kind of permanent magnet type vacuum circuit-breaker.
Background technology
Permanent magnet type vacuum circuit-breaker, strict to the component layouts in the cabinet, if layout is unreasonable, will influence the consumption and the size of each parts in size, shape and the cabinet of cabinet, and then influence the structural behaviour of complete machine, reduce the useful life of permanent magnet type vacuum circuit-breaker.
Manual switching-off device is one of vitals of permanent magnet type vacuum circuit-breaker, when the major loop of circuit breaker must be cut off and control circuit can't connect the time, uses manual switching-off device to cut off major loop.Existing permanent magnet type vacuum circuit-breaker mostly is arranged on manual switching-off device the upper end of permanent magnet mechanism, and the moving iron core guide rod of variation drive of contour curve moves upward when utilizing cam gear to rotate, thereby realizes sub-switching operation.Because the operating position of existing manual switching-off device is higher, and relies on operating personnel's arm strength rotating cam device to overcome closing retention force fully, is not easy to carry out sub-switching operation, and has reduced the accuracy and the reliability of sub-switching operation.
The utility model content
For solving the problems of the technologies described above, the embodiment of the present application provides a kind of permanent magnet type vacuum circuit-breaker, because the complete machine layout is unreasonable, the structural behaviour that causes reduces to solve existing permanent magnet type vacuum circuit-breaker, and technical scheme is as follows:
A kind of permanent magnet type vacuum circuit-breaker comprises at least: permanent magnet mechanism mounting panel and manual switching-off device, wherein:
Described permanent magnet mechanism mounting panel is welded on the cabinet;
Described manual switching-off device comprises:
Be installed in the manual brake separating axle on the hole slot of lower partition in the described permanent magnet type vacuum circuit-breaker cabinet;
Be connected on the described manual brake separating axle and all be positioned at the manual brake separating operating block and the separating brake semicircle cam of this manual brake separating axle one end;
Be connected the separating brake handle on the described manual brake separating operating block;
Be set on the described permanent magnet type vacuum circuit-breaker main shaft, and be positioned at close a floodgate the mutually separating brake connecting lever in connecting lever left side of described permanent magnet type vacuum circuit-breaker main shaft B, and its external part is fixed with pin, and this pin is positioned at described separating brake semicircle cam top, and vertical range peripheral with it preset spacing.
Preferably, described default spacing is not more than 3mm, and is not less than 2mm.
Preferably, described sub-switching operation piece and separating brake semicircle cam are fixed on the described manual brake separating axle by the key connected mode.
As shown from the above technical solution, its permanent magnet mechanism mounting panel of the permanent magnet type vacuum circuit-breaker that the embodiment of the present application provides and cabinet are integrally welded, can make chassis arrangement neat more, succinct, thereby make the miscellaneous part in the cabinet have sufficient installing space, and then made things convenient for parts rational deployment in the cabinet, installation, adjustment, the size that has solved cabinet and its inner each parts well with cooperate requirement.Guarantee the stability of each moving component in the permanent magnet mechanism simultaneously, and then guaranteed the reliability of the work of magneto circuit breaker.Its manual switching-off device is simple in structure and be installed in the lower position place of circuit breaker, and operating personnel can utilize that own wt is auxiliary finishes the separating brake action, thereby have made things convenient for the carrying out of sub-switching operation, and have improved the accuracy and the reliability of sub-switching operation.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, the accompanying drawing that describes below only is some embodiment that put down in writing among the application, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of permanent magnet type vacuum circuit-breaker of the embodiment of the present application;
Fig. 2 is the structural representation of a kind of manual switching-off device of the embodiment of the present application.
Embodiment
The embodiment of the present application provides a kind of permanent magnet type vacuum circuit-breaker, and its inner permanent magnet mechanism mounting panel and cabinet is integrally welded; Simultaneously manual switching-off device is improved, the manual switching-off device after the improvement comprises: be installed in the manual brake separating axle on the hole slot of lower partition in the described permanent magnet type vacuum circuit-breaker cabinet; Be connected on the described manual brake separating axle and all be positioned at the manual brake separating operating block and the separating brake semicircle cam of this manual brake separating axle one end; Be connected the separating brake handle on the described manual brake separating operating block; Be set in the separating brake connecting lever on the described permanent magnet type vacuum circuit-breaker main shaft, and be positioned at close a floodgate mutually connecting lever left side of described permanent magnet type vacuum circuit-breaker main shaft B, and its external part is fixed with pin, and this pin is positioned at described separating brake semicircle cam top, and vertical range peripheral with it preset spacing.
In order to make those skilled in the art person understand technical scheme among the application better, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment only is the application's part embodiment, rather than whole embodiment.Based on the embodiment among the application, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all should belong to the scope of the application's protection.
Referring to Fig. 1, a kind of magneto circuit breaker that the embodiment of the present application provides, its permanent magnet mechanism mounting panel 1 is integrally welded with cabinet, thereby the intensity and the impact resistance of permanent magnet mechanism mounting panel have been improved, the installation strength and the positioning accuracy of permanent magnet mechanism have also been improved simultaneously, thereby guaranteed the stability of each moving component in the permanent magnet mechanism, and then guaranteed the reliability of the work of magneto circuit breaker.Permanent magnet mechanism mounting panel and cabinet are integrally welded, can make chassis arrangement neat more, succinct, thereby make the miscellaneous part in the cabinet have sufficient installing space, and then have made things convenient for the carrying out of parts rational deployment, installation, adjustment in the cabinet.
Referring to Fig. 1 and Fig. 2, the permanent magnet type vacuum circuit-breaker that the embodiment of the present application provides, its manual switching-off device 2 comprises: manual brake separating axle 21, manual brake separating operating block 22, separating brake semicircle cam 23, separating brake handle 24, separating brake connecting lever 25.
Wherein, in the hole slot of manual brake separating axle 21 two dividing plates of bottom in permanent magnet type vacuum circuit-breaker; Manual brake separating operating block 22 and separating brake semicircle cam 23 all can be connected an end of manual brake separating axle 21 by the key connected mode; Separating brake handle 24 is arranged on the manual brake separating operating block 22; Separating brake connecting lever 25 is set on the main shaft 26 of permanent magnet type vacuum circuit-breaker, and be positioned at close a floodgate mutually connecting lever left side of B, the external part of separating brake connecting lever 25 is fixed with pin 27, this pin is positioned at separating brake semicircle cam 23 tops, and be provided with default spacing with its circumferential edges, particularly, this default spacing is between 2mm-3mm.
Particularly, when carrying out sub-switching operation with manual switching-off device, depress separating brake handle 24, drive 22 runnings of manual brake separating operating block, driving manual brake separating axle 21 rotates, and then drive separating brake semicircle cam 23 rotates, when pin 27 that separating brake semicircle cam 23 touches on the separating brake connecting lever 25, can drive separating brake connecting lever 25 rotates, main shaft 26 is rotated, finally transmit motion to moving iron core guide rod 28, make iron core overcome closing retention force and move upward, under the effect of the pulling force of contact counter-force and tripping spring, finish manual brake separating and operate.
The permanent magnet type vacuum circuit-breaker that the embodiment of the present application provides, simple in structure, the reliable in action of its manual switching-off device, and because the installation site is lower, requirement to operating personnel's height and arm strength is lower, operating personnel can utilize the auxiliary separating brake of finishing of own wt to move, and have increased the accuracy and the reliability of sub-switching operation.
In sum, the permanent magnet type vacuum circuit-breaker that the embodiment of the present application provides, its permanent magnet mechanism mounting panel and cabinet are integrally welded, can make chassis arrangement neat more, succinct, thereby make the miscellaneous part in the cabinet have sufficient installing space, and then made things convenient for parts rational deployment in the cabinet, installation, adjustment, the size that has solved cabinet and its inner each parts well with cooperate requirement.Guarantee the stability of each moving component in the permanent magnet mechanism simultaneously, and then guaranteed the reliability of the work of magneto circuit breaker.Its manual switching-off device is simple in structure and be installed in the lower position place of circuit breaker, and operating personnel can utilize that own wt is auxiliary finishes the separating brake action, have increased the accuracy and the reliability of sub-switching operation.
The above only is the application's a embodiment; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the application's principle; can also make some improvements and modifications, these improvements and modifications also should be considered as the application's protection range.