CN104425172B

CN104425172B - For switching on and off the device of electric switch

Info

Publication number: CN104425172B
Application number: CN201310386113.5A
Authority: CN
Inventors: 陈松林; 刘明华; 蒲恩强; 宋磊; 王砚波
Original assignee: Siemens Corp
Current assignee: Siemens Corp
Priority date: 2013-08-30
Filing date: 2013-08-30
Publication date: 2019-04-19
Anticipated expiration: 2033-08-30
Also published as: CN104425172A

Abstract

The present invention relates to a kind of for switching on and off the device of electric switch, with drive shaft and driven shaft, wherein, drive shaft can rotate between on-position and open position, driven shaft correspondingly can connect the position of the switch and disconnect the position of the switch around the rotation of its longitudinal axis by the first mechanism of connection between them, wherein, first mechanism of driven shaft driving is always automatically continuing to rotate driven shaft after the critical point of the first mechanism, wherein, drive shaft at least can be rotated freely in an angular zone when starting automatically to continue rotation after the first critical point, and wherein, drive shaft correspondingly plays the role of display switch position.In order to realize that the specific ground position of the switch is shown, it is recommended that, second mechanism correspondingly applies torque to the drive shaft at least in angular zone, which plays the role of aligning torque before the second critical point of the second mechanism, and plays after the second critical point and continue to rotate torque.

Description

For switching on and off the device of electric switch

Technical field

The present invention relates to a kind of for switching on and off the device of electric switch, has drive shaft and driven shaft, wherein described Drive shaft can rotate between on-position (ON) and open position (OFF), the driven shaft can be correspondingly by connection The first mechanism between them is connecting the position of the switch and is disconnecting the position of the switch around the rotation of its longitudinal axis, wherein by the drive Shaft-driven first mechanism is moved every time in the critical point (Kipppunkt Jing Guo first mechanism；Also referred to as " tumble critical Point " or " turning point ") after continue to rotate the driven shaft, wherein the drive shaft is at least being faced by first Start automatically to continue to be freely rotatable in an angular zone when rotation after boundary's point, and wherein, the drive shaft is corresponding Play the role of display switch position in ground.

Background technique

It switchs, be known especially as disconnecting switch, and for cutting off the electric current for flowing through its switch contact.Here, Switching process is executed by the switch shaft (Schaltwelle) for extending across switch, the switch shaft and switch contact are correspondingly One works.The upper corresponding operation device of switch is fixed on for switching on and off (operation) switch.This operating device uses Handle can be inserted into the drive shaft by drive shaft.Here, drive shaft works with driven shaft one, the driven shaft also with switch Switch shaft is connected.The rotary motion of drive shaft and the rotary motion of driven shaft are consistent, and the rotary motion is according to connection-and breaks Open position rotates to the disconnection position of the switch (and rotating on the contrary) from the position of the switch is connected.The position of the drive shaft it Between, there are middle positions, and wherein drive shaft is correspondingly until reach the middle position pre-pressing mechanical force reservoir, as storage Part is deposited for example including helical spring.If drive shaft passes through the middle position, driven shaft continues rotation correspondingly from the power Power is obtained in reservoir.Here, driven shaft automatically goes to correspondingly the position of the switch in a rotational direction.People are according to upper It states relationship and also refers to so-called wink manual converting mechanism (Sprungschaltwerk), the middle position of its critical point and drive shaft It is related.

The position of the switch shows through the angular position of drive shaft and realizes.The switch is shown in simplest situation by one Kind installation is constituted with the label on shell on the driving shaft.

The shortcomings that this switch, is that the position of the switch is not always to be clearly shown.

Summary of the invention

The technical problem to be solved by the present invention is to realize clear this for switching on and off in corresponding device Errorless switch is shown.

The technical problem is solved by following characteristics, i.e., is solved by a kind of for switching on and off the device of electric switch Certainly, with drive shaft and driven shaft, wherein the drive shaft can revolve between on-position (ON) and open position (OFF) Turn, the driven shaft correspondingly can connect the position of the switch and disconnect switch by the first mechanism of connection between them Position is rotated around its longitudinal axis, wherein by shaft-driven first mechanism of driving always in facing by first mechanism Continue to rotate the driven shaft after boundary's point, wherein the drive shaft is at least critical by first in the first mechanism Start automatically to continue to rotate or dally freely in an angular zone when rotation after point, and wherein, the drive shaft Correspondingly play the role of display switch position.In order to realize that the specific position of the switch is shown, it is proposed that, the second mechanism is at least locating The drive shaft in the angular zone correspondingly applies torque, and the torque is before the second critical point of second mechanism Play the role of aligning torque, and is played after second critical point and continue to rotate torque.

The solution regulation, a mechanism at least apply torque, the torque to drive shaft in (idle running -) angular regions So that drive shaft turns round (return torque) before critical point, and further rotates after critical point and (continue to rotate torque).For Solution the technical problem, therefore a mechanism is used, drive shaft correspondingly rotated in idle angular region.

This mechanism equally has critical point.

A kind of simple design scheme regulation, second of mechanism includes the cam disc torsionally disposed on the driving shaft (Kulissen-Scheibe), exterior contour is equipped with the vertex consistent with the second critical point.

When in order to generate torque, apply active force on outer profile when, will be further with the solution of cam disc Simplify.

When the active force transverse to drive shaft rotation axis act on the diametrically contraposition position of outer profile when, it is real A kind of existing symmetrical design scheme.

Technically simple outer profile regulation, in the asymmetrical arrangement that two act on the active force on outer profile, The diametral curve of outer profile is repeating after 180 ° respectively.

Detailed description of the invention

The present invention is elaborated below with reference to embodiment.Attached drawing are as follows:

Fig. 1 shows the device for being used to switch on and off switch with 4 pole boxes (Polkassetten),

Fig. 2 shows the device according to figure 1 with overhead guard (Aufsatz),

Fig. 3 shows overhead guard according to Fig.2, and

Fig. 4 shows the decomposition view of overhead guard according to Fig.3,.

Specific embodiment

Fig. 1 shows the device 1 for switching on and off disconnecting switch 2, which has 4 pole box 2a.The pole Box 2a is fixed on the lateral upper of device 1 and respectively includes two contacts, and described two contacts can be by by switch shaft It is separated from each other and mutually bears against (not shown).Pole box 2a can be connected to each current phase of circuit by link block 3 (Stromphasen) on.

Device 1 is located in shell 4, the prominent shell 4 in the end of drive shaft 5 and driven shaft 6.Driven shaft 6 and switch shaft pass through Shape cooperates and is connected with each other (not shown).

Drive shaft 5 has cubic connected in star 7, and open position OFF can be gone to from on-position ON, and can be on the contrary On-position ON is gone to from open position OFF.

Drive shaft 5 and driven shaft 6 are connected with each other by (first) mechanism (not shown).The mechanism driven shaft 5 is driven, Wherein driven shaft 6 is gone to (first) critical point by the mechanism.In the process, it tenses automatically further after through critical point Rotate the spring of driven shaft 6.The mechanism is used for wink manual converting mechanism herein；Driven shaft 6 therefore with hand active force and revolving speed without Guan Di, the corresponding position of the switch always is gone to same time response curve by same active force (connect the position of the switch Or disconnect the position of the switch).

Drive shaft 5 at least can be freely (empty at one when and then starting to automatically continue rotation after by critical point Turn -) the interior rotation of angular zone.

Fig. 2 shows the disconnecting switch 2 with 4 pole box 2a, wherein overhead guard 8 is installed on device 1 shown in Fig. 1.The top Cover 8 has extension 9, and there are the grooves 10 of square in the extension 9, to make to operate easier handle (not shown) End be inserted into the groove.

Position of the switch instruction 11 includes in the tip 11a of notch 11b shape and including marking OFF and ON, as switch Position instruction 11, the notch 11b and label OFF and ON correspondingly collective effect.OFF is marked to indicate open position, and ON is marked to indicate on-position.The position of the switch at that time is exactly the mark position that is accordingly directed toward by notch 11b.

The separately shown overhead guard 8 in Fig. 3.It can see square toes 12, can be inserted into the cubic connected in star 7 to match.Prolong Long section 9 extends drive shaft 5 to a certain extent.

The decomposition view of overhead guard 8 is shown in FIG. 4.The overhead guard 8 includes the second mechanism 100, passes through the square toes 12 of insertion Apply torque to correspondingly drive shaft 7.For this purpose, cam disc 13 is torsionally disposed on extension 9, extension 9 and cam disc 13 Rotation axis be overlapped, and the outer profile 14 of cam disc 13 have vertex 14a.The outer profile 14 has such herein Special feature, the i.e. asymmetric diametral curve of outer profile 14 are repeating after 180 ° respectively, thus occur two on excircle Secondary vertex 14a, wherein the only visible sinciput point 14a in Fig. 4, and opposed vertex 14a is extended section 9 and is covered.In outer profile On the position of two diametrically contrapositions on 14, transverse to drive shaft rotation axis apply torque, the torque is herein by leading Draw produced by the helical spring 15 extended in part 16.Helical spring 15 extends parallel to each other, and is respectively relative to drive shaft 7 Or the rotation axis off-center of coaxial extension 9 dispose so that the vertex 14a of cam disc 13 each serves as critical point The effect of (also referred to as " critical point of tumbling " or " turning point ").According to the rotation direction of cam disc 13, the bullet before critical point Spring force generates reseting torque, and generates after critical point and continue to rotate torque.Here, spring end 17 is resisted against cam disc It is slided on 13 edge 18 and when cam disc 13 is rotated along edge 18.

It means that described two torque energies directly invert its direction of rotation after the 14a of vertex respectively.

Realize that extension 9 is determined on on-position or open position in corresponding idle angular region in this way Position avoids the idle running of extension 9 and thus avoids the idle running of drive shaft 7.Therefore, position of the switch instruction 11 is correspondingly shown just Whether true position, i.e., correct display switch are switched on or disconnect.

Second critical point of the cam disc 13 of overhead guard 8 is worthily located at the rear of the first critical point of the first mechanism, and Torque of the torque of second mechanism 100 less than the first mechanism.

Claims

1. A device for switching on and off an electrical switch, comprising a drive shaft (5) and a driven shaft (6), wherein the drive shaft (5) can be switched on and off in the on position (ON) and off Rotating between positions (OFF), the driven shaft (6) can correspondingly rotate about the driven shaft between the on-switch position and the off-switch position by means of a first mechanism connected between them. The shaft rotates, and the first mechanism driven by the drive shaft (5) always automatically continues to rotate the driven shaft (6) after passing its critical point, at least after passing the first critical point. When the drive shaft (5) is free to rotate in an angular area, and the drive shaft (5) correspondingly plays the role of displaying the switch position, it is characterized in that the second mechanism (100) is at least in the The drive shaft (5) in the angular region accordingly applies a torque which acts as a return torque before the second critical point of the second mechanism and at which After that, it plays the role of a continuous torque, wherein the second critical point of the second mechanism (100) is set behind the first critical point of the first mechanism, and the torque of the second mechanism (100) is smaller than the torque of the first mechanism. torque.

2 . The device according to claim 1 , wherein the second mechanism ( 100 ) comprises a cam disk ( 13 ) mounted on the drive shaft ( 5 ) in a rotationally fixed manner, the outer contour of the cam disk ( 14 ). ) is provided with a vertex (14a) which coincides with the second critical point.

3. Device according to claim 2, characterized in that, in order to generate the moment, a force is exerted on the outer contour.

4. Device according to claim 3, characterized in that the force acts on radially opposite positions of the outer contour (14) transverse to the axis of rotation of the drive shaft (5).

5 . The device according to claim 4 , wherein, in the symmetrical arrangement of the two forces acting on the outer contour ( 14 ), the radial curves of the outer contour ( 14 ) respectively pass through 180° Repeat later.

6. Device according to one of claims 3 to 5, characterized in that the acting force is designed as a spring force.