The mechanical transmission mechanism of dual-power automatic switching device
Technical field
The utility model relates to the mechanical transmission mechanism of dual-power automatic switching device, is used for low voltage equipment, belongs to supply of electric power control device technical field.
Background technology
Dual-power automatic switching device, form by two circuit breakers, a cover mechanical transmission mechanism and controller three parts, when work, normal, stand-by power supply are switched by two circuit breakers, require when a circuit breaker is in "on" position simultaneously, another circuit breaker does not allow to close a floodgate, and is mainly used in not allow the important place that has a power failure.
Figure 1 shows that a kind of mechanical transmission mechanism of dual-power automatic switching device commonly used, this mechanism mainly comprises rotating disk 1 ', right guide 2 ', right guide plate 3 ', retainer 4 ', left side guide plate 5 ', left side guide 6 ' and bearing 7 ', right guide plate 3 ' is used for the folding lock of switching controls power supply commonly used, left guide plate 5 ' then is used for the folding lock of cut-in stand-by power supply, described rotating disk is located by connecting on bearing by driving shaft, left side guide plate 5 ' and right guide plate 3 ' are respectively by leading rivet 8 ' location and installation on bearing 7 ', and rotating disk is positioned between left guide plate 5 ' and the right guide plate 3 ', on the rotating disk 1 ' two driven shafts 10 ' are installed in addition, move up and down to drive left guide plate 5 ' and right guide plate 3 ' respectively, thereby realize the switching of duplicate supply, in addition, for preventing that left guide plate 5 ' and right guide plate 3 ' displacement from transfiniting, cause the state of opening a sluice gate to become "on" position, therefore, what left guide plate 5 ' and 3 ' the folding gate tool interlocking of right guide plate need be set on base opens a sluice gate limiting component---retainer 4 ', this retainer 4 ' by spacing rivet 9 ' location and installation on bearing 7 ', thereby the folding lock displacement to left guide plate 5 ' and right guide plate 3 ' is controlled, guarantee whenever all have only a circuit breaker to be in "on" position in the duplicate supply, but, because retainer 4 ' is to use spacing rivet location and installation on bearing 7 ', therefore, the prolongation of service time very easily causes the rivet absent-mindedness, influence the position-limiting action of retainer 4 ', in addition, in process of production, this retainer 4 ' is easy to neglected loading, this moment, left guide plate 5 ' can move freely, and had so just caused serious potential safety hazard.
The utility model content
The utility model is at the deficiencies in the prior art, the mechanical transmission mechanism of dual-power automatic switching device is provided, it is by being provided with driving shaft and limit shaft respectively on rotating disk, make this rotating disk possess simultaneously and drive and position-limiting action, the mechanical self-latching when switching between left side guide plate and the right guide plate with the realization duplicate supply, therefore, its structure is simple relatively, amount of parts reduces, reliable in action, no potential safety hazard.
For realizing above technical purpose, the utility model will be taked following technical scheme:
A kind of mechanical transmission mechanism of dual-power automatic switching device, comprise base, left side guide plate, right guide plate and rotating disk, described rotating disk passes through the active rotating shaft location and installation on base, and offer gathering sill on left guide plate and the right guide plate respectively, this left side guide plate and right guide plate are installed on the base by the guide-localization positioning parts that is arranged in the gathering sill, rotating disk is between left guide plate and right guide plate, and rotating disk can form first kinematic pair and second kinematic pair with left guide plate and the exchange of right guide plate respectively, described rotating disk can also be formed for realizing the first folding gate tool self-locking device and the second folding gate tool self-locking device of left guide plate and the self-locking of right guide plate folding gate tool respectively with left guide plate and the exchange of right guide plate, this first folding gate tool self-locking device comprises that location and installation is provided with on first limit shaft on the rotating disk and left guide plate is used for first retainer with the first limit shaft mechanical stop, and second retainer of the second folding gate tool self-locking device being used for of comprising that location and installation is provided with on second limit shaft on the rotating disk and right guide plate and the second limit shaft mechanical stop.
First kinematic pair comprises the left chute that location and installation is offered on left driven shaft on the rotating disk and left guide plate, and second kinematic pair comprises the right rail that location and installation is offered on right driven shaft on the rotating disk and right guide plate.
The guide-localization parts are the guiding rivet.
According to above technical scheme, can realize following beneficial effect:
1. the utility model rotating disk and left guide plate and right guide plate exchange respectively and form the first folding gate tool self-locking device and the second folding gate tool self-locking device, with need on base, compare with the mechanical self-latching of realizing left guide plate and right guide plate in the prior art by the retainer that is located by connecting, the utility model action is more reliable, and greatly reduces potential safety hazard;
2. first kinematic pair described in the utility model comprises the left chute that location and installation is offered on left driven shaft on the rotating disk and left guide plate, and second kinematic pair comprises the right rail that location and installation is offered on right driven shaft on the rotating disk and right guide plate, with guide need be installed on guide plate in the prior art compare with the formation of guide plate kinematic pair to realize rotating disk, the utility model has reduced amount of parts on the one hand, structure is simple relatively, on the other hand, more can guarantee stability and the reliability that the duplicate supply exchange is switched.
Description of drawings
Fig. 1 is the structural representation of the mechanical transmission mechanism of dual-power automatic switching device in the prior art;
Fig. 2 is a structural representation of the present utility model;
Wherein, base 1 rotating disk 2 right guide plate 3 right rails 31 second retainers 32 gathering sills 33 left guide plate 4 left chute 41 first retainers 42 guide-localization parts 5 first limit shafts 6 second limit shafts 7 right driven shaft 82 left driven shaft 82 main rotary shafts 9.
Embodiment
Explain the technical solution of the utility model below with reference to accompanying drawing.
As shown in Figure 2, the mechanical transmission mechanism of dual-power automatic switching device described in the utility model, comprise base 1, left side guide plate 4, right guide plate 3 and rotating disk 2, described rotating disk 2 passes through active rotating shaft 9 location and installation on base 1, and offer gathering sill 33 on left guide plate 4 and the right guide plate 3 respectively, this left side guide plate 4 and right guide plate 3 are by being arranged at guide-localization parts 5 location and installation in the gathering sill 33 on base 1, the guide-localization parts 5 that the utility model adopts are the guiding rivet, rotating disk 2 is between left guide plate 4 and right guide plate 3, and rotating disk 2 can form first kinematic pair and second kinematic pair with left guide plate 4 and 3 exchanges of right guide plate respectively, first kinematic pair comprises the left chute 41 that location and installation is offered on left driven shaft 82 on the rotating disk 2 and left guide plate 4, and second kinematic pair comprises the right rail 31 that location and installation is offered on right driven shaft 81 on the rotating disk 2 and right guide plate 3; Described rotating disk 2 can also be formed for realizing respectively the first switching mechanical self-locking device and the second switching mechanical self-locking device of left guide plate 4 and right guide plate 3 switching mechanical self-latchings with left guide plate 4 and 3 exchanges of right guide plate; This first switching mechanical self-locking device comprises that location and installation arranges on first limit shaft 6 on the rotating disk 2 and left guide plate 4 is used for first retainer 42 with first limit shaft, 6 mechanical stop, and the second switching mechanical self-locking device comprises that location and installation arranges on second limit shaft 7 on the rotating disk 2 and right guide plate 3 for second retainer 32 of second limit shaft, 7 mechanical stop.
Closing a floodgate with left guide plate 4 below with reference to accompanying drawing is that example illustrates operation principle of the present utility model: at first rotate rotating disk 2 by main rotary shaft, right driven shaft 81 drives right guide plate 3, it is moved so that right switch separating brake along gathering sill 33, left driven shaft 82 enters and prepares to drive left guide plate 4 combined floodgate motions in the left chute 41 simultaneously, left side driven shaft 82 drives left guide plate 4 and closes a floodgate, when left guide plate 4 arrives closing position, second limit shaft 7 props up second retainer, 32 edges that are provided with on the right guide plate 3, stops right guide plate 3 to close a floodgate and moves.