DE1184580B - Device for continuously changing the torque curve of energy storage devices, especially in the case of diverter switches of regulating transformers - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Boarding school Class: F 06 h German class: 47h-4

Number: 1184 580

File number: M 50104 XII / 47 h Filing date: August 23, 1961 Opening day: December 31, 1964

The invention relates to a device for continuously changing the torque curve from Energy storage that is particularly suitable for diverter switches of regulating transformers.

In the case of rapid switching of diverter switches, energy storage devices, preferably in the form of Springs, used, which allow a certain timing of the load switching. This energy storage result in a predefined, specific course according to their construction of the torque delivered during the switchover time, which is between the extremes "Large initial torque" and "small final torque" and vice versa at the beginning and end the triggering of the energy store and thus the switching process moves, with a certain construction only allows a very specific torque curve in or between these extremes.

With diverter switches for regulating transformers, it is desirable if the switching time or the The timing of the individual switching steps can be changed in order to achieve a favorable adaptation to achieve the required switching capacity or the timing of the individual switching steps to adapt different frequencies. In the known constructions, this is only possible through use of counter-force accumulators, spring brakes and other additional construction elements possible, which are expensive and only complicate the structure of the switch.

The object of the invention is to eliminate these shortcomings by means of a device for continuously changing the torque curve of energy stores, mainly in diverter switches of regulating transformers, in order to adapt the diverter switches to the desired process of load switching in the simplest possible way.

This object is achieved according to the invention characterized in that a winding crank is provided with continuously adjustable in known manner the length of the lever arm which changes continuously over a rocker arm, the angular movement of a pull lever for the energy storage, and thus the relevant for the initial torque perpendicular distance of the energy store to the pivot point infinitely variable with a crank . This also sets the storage capacity of the energy store, for example the tension force of a spring.

The lever arm of a crank when working continuously

Device for continuously changing the Torque curve of energy storage, especially with diverter switches from Regulating transformers

Applicant:

Reinhausen machine factory Scheubeck brothers K. G., Regensburg, Falkensteinstr. 8th

Named as inventor: Alexander Bleibtreu; Hubertus Sarfert, Regensburg

to shift gears smoothly Tenden is how be already mentioned above, known per se, but the application of this measure is given for the device according to the invention not readily because they are completely different types of gears. For example , one leg of the winding crank was

^a 5 known manner provided with an adjustable pin in an elongated hole which engages in another elongated hole at the outermost end of the lever of the rocker arm. The transmission of the movement from the rocker arm to the pull-up lever for the energy storage takes place, however, according to the invention on simplest via a gear segment provided on the rocker arm, which is connected to a gear wheel of the Pulling lever for the energy storage combs. The gear on the winding lever and the shift crank are arranged on the same shaft.

The device according to the invention is simple, space-saving and versatile. The switching times and the timing of the individual switching steps of a diverter switch can thus be changed and set as desired, and the switch can thus be adapted to the desired advance of the diverter switch without using additional aids. This is of great advantage both for the production and for the operation of such changeover switches.

The subject matter of the invention will be explained in more detail using an exemplary embodiment. B i 1 d 1 shows the device in its structure, B i 1 d 2 schematically different switching positions of the device and

Fig. 3 Curves of the torques as a function of the switching angle.

. ,.; ■ 409760/212

The dash-dotted circle shows the movement of the pull-up lever 9 when the energy store 14 is tensioned. The pin 5 is located at the extreme end of the elongated hole 4, so that the leg 3 of the 5 pull-up crank 1 is quite long and causes a large angular movement of the pull-up lever 9. The positions c and d in Figure 2 show the device at the beginning (c) of the release movement with a minimum and at the end (d) of the movement

The device according to B i 1 d 1 consists of the winding crank 1 with the legs 2 and 3, the
Leg 3 an adjustable in a slot 4
Pin 5 has a role, the rocker arm 6 with
the toothed segment 7 and at the end of the leg with the
Slot 8, the pull lever 9 with the gear
10, the crank 11 with the lever arms 12 and
13, the energy store 14, which is attached to the lever arm 12 of the
Shift crank 11 and the outermost end of the winding lever 9 engages the release levers 15 and 16, io maximum torque, which runs according to the holding pawls 17 and 18 and the fixed, spring curve / according to B i 1 d 3. The stops 19 and 20 are located here, the pin 5 at the inner end of the elongated hole 4, see above

To pull up the energy store 14 is that the leg 3 of the winding crank 1 is short and Winding crank 1 by 180 ° into the small angular movement of the winding lever 9 shown in B i 1 d 1 Position rotated. The pin slides with the 15 caused.

Roll 5 in the elongated hole 8 of the rocker arm 6 and through middle positions between these two Ex-

swivels this from bottom to top. The toothed tremen a, b and c, d can be set in any desired course of the segment 7 while the gear wheel 10 rotates and pivots the torque. There is always a pull-up lever 9 downwards. Since the lever arm 13 is fixed at a large distance r at the beginning of the movement (α) of the switching crank 11 in the holding pawl 18, ao large initial torque and a small amount of the energy storage device 14 is tensioned. Now the stand r at the beginning of the movement (c) opens a small lever 2 of the winding crank 1 via the release lever starting torque. Since the pin 5 from the pivot point 16 the retaining pawl 18, whereby the switching crank 11 of the winding crank 1 can be continuously changed by the tensioned energy store 14 with it, every torque curve between the lever arm 12 up to the stop 20 is down 35 the curves e and / according to B i 1 d 3 possible.

quickly and latches with its lever arm 13 in the retaining pawl 17. The switch is triggered.

When the winding crank 1 is turned further by 180 °, the rocker arm 6 pivots downwards and pivots the pull-up lever 9 upwards via the rack 7 and the gearwheel 10, whereby through the energy store 14 the crank 11 with its lever 12 snaps back up to the stop 19, as soon as the pawl 17 through the leg 2 of the winding crank 1 via the release lever 15 the Lever 13 releases. The lever 13 then latches in the retaining pawl 18 and holds the crank 11 to next tensioning of the energy store 14 by further rotation of the winding crank 1 by 180 °

As can be seen from the positions in B i 1 d 2, the course of the torque during the movement of the crank 11 depends on the characteristics of the energy store and on the vertical distance r of the energy store 14 to the pivot point of the crank 9 at the beginning and at the end of the movement. These factors can be influenced by changing the pull-up lever path, which in turn takes place by adjusting the pin 5 in the elongated hole 4 of the pull-up crank 1.

The positions α and b in B i 1 d 2 show the device at the beginning and at the end of a switch triggering movement, with a maximum torque being achieved at the beginning (a) of the sequence and a minimum torque at the end (b) , according to curve e according to Figure 3rd

Claims (3)

Patent claims: 1. Device for continuously changing the torque curve of energy storage devices, in particular for diverter switches of regulating transformers, characterized in that a winding crank (1) with a known per se Way continuously adjustable length of the lever arm (3) is provided, which is via a rocker arm (6) the angular movement of a lever (9) for the energy store (14) continuously changes and thus the vertical distance (r) that is decisive for the initial torque of the energy store to the pivot point of a crank (11) is continuously adjusted. 2. Apparatus according to claim 1, characterized in that the rocker arm (6) is a Toothed segment (7) which meshes with a gear (10) of the pull-up lever (9) for the energy store (14). 3. Apparatus according to claim 1 and 2, characterized in that the gear (10) on the Pull-out lever (9) and the crank handle (11) are arranged on the same shaft. Considered publications:
German patent specifications No. 757 517, 905 213,
911203;
U.S. Patent No. 2,962,908. 1 sheet of drawings 409 760/212 12.64 Q Bundesdruckerei Berlin