CN102007257B

CN102007257B - Electromechanical device for locking/releasing a mechanism for the manual operation of an actuation shaft, particularly of an electrical disconnector

Info

Publication number: CN102007257B
Application number: CN200980104565.1A
Authority: CN
Inventors: D·贝加莫
Original assignee: Areva T&D Italy SpA
Current assignee: Grid Solutions SpA
Priority date: 2009-02-05
Filing date: 2009-02-05
Publication date: 2013-09-04
Anticipated expiration: 2029-02-05
Also published as: CN102007257A; EP2242891A1; EP2242891B1; WO2010089781A8; WO2010089781A1

Abstract

An electromechanical device (10) for locking/releasing a mechanism (11) for the manual operation of an actuation shaft (12), particularly of an electrical disconnector, comprising - a detent (13) for locking the rotation of the actuation shaft (12) which can perform a translational motion with respect to the shaft in order to engage therein, so as to lock its rotation, and disengage from it, in contrast with a return spring (14), to release its rotation, - an electrical contactor (15) with a movable element (16), which is coupled in a cam-like arrangement to the detent (13) and is adapted to be arranged, with respect to the detent, in two alternative configurations, respectively a configuration for preventing and a configuration for enabling the disengagement of the detent (13) from the actuation shaft (12), in order to prevent or release its rotation.

Description

Be used for manual operation and lock/discharge the especially electromechanical assembly of the mechanism of electric circuit breaker of driving shaft

Technical field

The present invention relates to lock/discharge driving shaft for manual operation, especially the electromechanical assembly of the mechanism of electric circuit breaker.

Background technology

Current, the locked component of driving shaft comprises the ratchet with the driving shaft interlocking, and ratchet is by carrying out the projection locking that translational motion enters the off-position by the effect of electromagnet.

When electromagnet did not power up, projection remains on the ratchet latched position also by back-moving spring so driving shaft can't rotate.

When electromagnet was powered, projection moved and discharges the motion of ratchet, and ratchet can be thrown off so that its rotation from axle.

This electromagnet must customize at every kind of operating voltage (AC or DC) certainly, and needs the supporting terminal strip can connect up or be connected to power supply and control system.

Summary of the invention

Thereby the purpose of this invention is to provide a kind of owing to do not need to adjust purposes dynamo-electric locking/releasing device more flexibly according to its available supply voltage.

For this reason, an object of the present invention is to provide a kind of dynamo-electric locking/releasing device, it allows to use in the mill the current commercial general software-component of buying easily.

Another object of the present invention provides the electromechanics locking/releasing device of the reliable affirmation that allows its active configuration.

Another object of the present invention provides a kind of use simple in structure, easy also can be with the electromechanics locking/releasing device of relatively low cost manufacturing.

Being by being used for the mechanism that manual operation locked/discharged driving shaft hereinafter with more tangible this purpose and these and other objects, the electromechanical assembly of---especially electric circuit breaker---is realized, this electromechanical assembly comprises: the ratchet that is used for the rotation of the described axle of pinning, described ratchet can be described relatively axle carry out translation and then be engaged in wherein, thereby pin its rotation and the opposing elastic device therefrom throw off to discharge its rotation, it is characterized in that, it comprises the electric contactor with displaceable element, but this electric contactor is coupled in described ratchet with the cam-like structure and is suitable for described relatively ratchet and is configured to two kinds of arrangement, be respectively and prevent that described ratchet and described driving shaft break away from and allow the configuration of described ratchet and the disengaging of described driving shaft, thereby prevent or discharge its rotation.

The accompanying drawing summary

Further aspect of the present invention and advantage will from according to the preferred of dynamo-electric locking/releasing device according to the present invention but non-exclusive embodiment below become more clear the detailed description, explain by the non-limiting example in the accompanying drawing, wherein:

Fig. 1 is the partial cross-sectional perspective view according to dynamo-electric locking/releasing device of the present invention;

Fig. 2 is the broken section front elevation drawing according to dynamo-electric locking/releasing device of the present invention;

Fig. 3 sectional view that to be dynamo-electric locking/releasing device according to the present invention obtain along cutting line III-III of Fig. 2.

The specific embodiment

Be noted that the known any content understanding of discovery is not require protection and is the theme that does not require protection in the patent application process.

Referring to accompanying drawing, the electromechanical assembly that Reference numeral 10 is always represented the locking/relieving mechanism 11 for manual operation driving shaft 12---especially electric circuit breaker---, it comprises for pinning the ratchet 13 that driving shaft 12 rotates, ratchet 13 can and then be engaged in wherein with respect to driving shaft 12 translations, and also can resist back-moving spring 14 therefrom throws off to discharge its rotation thereby pin its rotation.

Generally speaking, back-moving spring 14 can replace with elastic device, this elastic device apply power equivalently so that ratchet 13 towards driving shaft 12 elastic resets to be locked.

Particularity according to dynamo-electric locking/releasing device 10 of the present invention is, it comprises the electric contactor 15 with displaceable element 16, electric contactor 15 is coupled in ratchet 13 and is suitable for described relatively ratchet with the cam-like configuration and forms two kinds of different configurations, be respectively the configuration that prevents and allow ratchet 13 to throw off from driving shaft 12, thereby prevent or discharge its rotation.

Electric contactor 15 is preferably the relay that is provided with the emergency mechanical manipulation device, and this itself is exactly known and not shown in the accompanying drawings, and can handle to resist to turn back to and prevent that the elastic device that disposes from allowing configuration with displaceable element 16 manual configuration.

More specifically, displaceable element 16 preferably includes to be arranged in the ratchet 13 with the cam-like structure and is coupling in projection 17 in the slit 18.

Slit 18 has aptly:

-first 19, the direction A that it is basically parallel to translational motion is used for respect to driving shaft 12 interlockings and release ratchet 13, and

-second portion 20, it is basically perpendicular to the direction A of translational motion.

In described permission configuration, projection 17 cooperates to live first 19 slidably, thereby allows ratchet 13 along the direction A translation of translational motion.

Prevent in the configuration described that on the contrary projection 17 is matched with second portion 20 to stop ratchet 13 along the translational motion of direction of translatory motion A.

In addition, first 19 has inclined wall 21 aptly, is used in the translational motion process that ratchet 13 is thrown off from driving shaft 12 projection 17 being guided to a certain position, allows configuration to keep when driving shaft 12 breaks away from ratchet 13.

Especially referring to Fig. 2, ratchet 13 of throwing off from axle 12 shown in broken lines among the figure, projection 17 is engaged in the first 19 of slit 18, and this is corresponding to permission configuration of displaceable element 16.

Suitable is, manual-operating mechanism 11 comprises the plate 22 for supporting driving shaft 12, and this plate 22 further supports ratchet 13 slidably.

Flange 23 stretches out and has an interlocking bearing 24 that at least one cooperates with tooth 25 that ratchet 13 provides from driving shaft 12, with driving shaft 12 interlockings.

Electric contactor 15 is fixed in base plate 22 by spring chuck 26, and spring chuck 26 in use maintains it so that projection 17 is coupling in the slit 18 with the cam-like configuration.

Electric contactor 15 is connected in control and monitoring arrangement 27 in function aptly, this control and monitoring arrangement 27 are to its long-range actuating, force its moving meter 16 to pass through to allowing configuration, to allow ratchet 13 from driving shaft 12 disengagements and described axle is rotated from preventing configuration.

In addition, by this way, the permission that electrically contacts that provides in electric contactor 15 when the moving meter 16 of electric contactor 15 is in the permission configuration sends a signal to control and monitoring arrangement 27, and this signal is confirmed the degree of freedom situations that ratchet 13 and driving shaft 12 are manually thrown off and the degree of freedom of reporting described axle hand rotation thus.

Operation according to dynamo-electric locking/releasing device 10 of the present invention is as follows.

Under idle duty, ratchet 13 and driving shaft 12 interlockings, its tooth 25 is matched with the seat 24 of flange 23.

Therefore displaceable element 16 is in and prevents from disposing and have the projection 17 of the second portion 20 that is matched with slit 18, thereby prevents that ratchet 13 is along the translational motion of direction of translatory motion A.

For driving shaft 12 is rotated, ratchet 13 allows for example to be operated by the staff from the control room by the electric command execution translational motion on the parts of control and monitoring arrangement 27.

In this case, displaceable element 16 moves to and allows configuration, makes projection move into the first 19 of slit 18 thus.

In this configuration, can form the translational motion of ratchet 13 along direction of translatory motion A, thereby its tooth 25 is thrown off from the seat 24 of flange 23, driving shaft 12 is freely rotated.

At ratchet 13 from the translational motion that axle 12 is thrown off, inclined wall 21 is along first's 19 guide humps 17 of slit 18, allow configuration and the respective electrical contact is provided thereby displaceable element 16 is kept, just can remotely confirm its duty by control and monitoring arrangement 27.

In practice, found that the present invention obtains its intended purposes and target, a kind of use more dynamo-electric locking/releasing device is provided, because its voltage that does not need to comply with its power supply station's need is adjusted, operates the commercial style relay that does not rely on voltage available because it uses.

According to the present invention, dynamo-electric locking/releasing device further allows the reliable affirmation of its operative configuration.

Therefore the present invention can visualize many corrections and variation, and they all fall within the scope of the appended claims; Full details can further be replaced by other technical equivalences element.

In practice, the material of use and possible shape and size can be as required with the arbitrary form of state-of-art.

Be marked with under the situation of Reference numeral after the technical characterictic of in any claim, mentioning, the use of these Reference numerals only for improve the readable of claims and therefore these Reference numerals the explanation by each element of these designated is not had any effect that limits.

Claims

1. dynamo-electric locking/releasing device (10), be used for the electric circuit breaker (11) of manual operation driving shaft (12) is locked/discharges, described dynamo-electric locking/releasing device (10) comprising: the ratchet (13) that is used for the rotation of the described driving shaft of pinning (12), described ratchet (13) thus can carry out translation and then be engaged in the described axle pinning rotating of described axle relative to described axle, and can resist elasticity reset device and throw off to discharge the rotation of described axle with described axle, it is characterized in that, described dynamo-electric locking/releasing device comprises the have displaceable element electric contactor (15) of (16), described displaceable element (16) comprises with the cam-like structure and is coupled in projection (17) in the slit (18) that is arranged in the described ratchet (13), described projection (17) but be suitable for described relatively ratchet and be set to two kinds of arrangement, be respectively and prevent described ratchet (13) from the configuration of described driving shaft (12) disengagement and the configuration that allows described ratchet (13) to throw off from described driving shaft (12), thereby prevent or discharge the rotation of described axle.

2. dynamo-electric locking/releasing device as claimed in claim 1, it is characterized in that, described electric contactor (15) is the relay that is provided with the emergency mechanical operating means, and described emergency mechanical operating means can move to resist be used to being reset to and prevent that described ratchet (13) manually is set to the described configuration that the described ratchet of permission (13) is thrown off from described driving shaft (12) from the elastic device of the described configuration of described driving shaft (12) disengagement with described displaceable element (16).

3. dynamo-electric locking/releasing device as claimed in claim 1 is characterized in that described slit (18) has:

First (19), described first substantially longitudinally extends so that described ratchet (13) cooperates and throw off described driving shaft (12) with respect to direction of translatory motion (A); And

Second portion (20), described second portion are basically perpendicular to described direction of translatory motion (A),

In described permission configuration, described projection (17) is matched with described first (19) slidably, prevent that described described projection (17) is matched with described second portion (20) to stop described ratchet (13) along the translational motion of described direction of translatory motion (A) in the configuration.

4. dynamo-electric locking/releasing device as claimed in claim 3, it is characterized in that, described first (19) has inclined wall (21), described inclined wall (21) is suitable for described projection (17) being inducted into a position in that described ratchet (13) is thrown off in the translational motion process of described driving shaft (12), to keep described permission configuration when described driving shaft (12) is thrown off at described ratchet (13).