CH236279A - Device for adjusting the effective spring length in torsion springs. - Google Patents
Device for adjusting the effective spring length in torsion springs.Info
- Publication number
- CH236279A CH236279A CH236279DA CH236279A CH 236279 A CH236279 A CH 236279A CH 236279D A CH236279D A CH 236279DA CH 236279 A CH236279 A CH 236279A
- Authority
- CH
- Switzerland
- Prior art keywords
- spring
- torsion springs
- spring length
- adjusting
- effective spring
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/04—Wound springs
- F16F1/12—Attachments or mountings
- F16F1/125—Attachments or mountings where the end coils of the spring engage an axial insert
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
Description
Vorrichtung für die Versteilung der wirksamen Federlänge bei Drehungsfedern. Im Apparatebau werden öfters Drehungs federn als Kraftspeicher und zur Erzeugung von Gegenkräften verwendet. In vielen Fäl len hat die Weg-Kraft-Kennlinie einer sol chen Feder eine .ganz bestimmte Steilheit aufzuweisen.
Die vorliegende Erfindung betrifft eine Einrichtung für die Regulierung der wirk samen Federlänge einer Drehungsfeder, in dem die Feder mehr oder weniger tief in einen Gewindegang eingeschraubt werden kann. Eine solche Einrichtung kann beispiels- weise in einem Beschleunigungsmesser an gewandt werden. Die beiliegende Zeichnung zeigt Ausführungsformen des Erfindungs gegenstandes.
In Fig. 7. ist A .ein zylindrischer Körper, in dessen Oberfläche ein Gewindegang B ein geschnitten ist. Der innere Durchmesser C und die Steigring des Gewindeganges: B stim men mit dem innern Durchmesser D bezw. der Steigung der Drehungsfeder E überein.
Um das eine Ende der Feder zu fixieren. schraubt man dasselbe in den Gewindegang B des Zylinders A. -Je tiefer die Feder in den Zylinder geschraubt wird, um so kürzer wird die freie Federlänge, und dementsprechend ändert die Weg-Kraft-Kennlinie. Nach dem Einstellen der Federlänge kann die Feder beispielsweise durch eine Schraube F gegen unerwünschtes Verdrehen gesichert werden.
Das zweite Federende kann in bekannter Weise befestigt werden.
Bei der oben beschriebenen Ausführungs form ist die wirksame Federlänge, ob auf Zug oder auf Druck beansprucht, gleich ,gross-. Die Steilheit der Weg-Kraft-Kennlinie ändert also nicht, ob die Feder auf Zug oder Druck beansprucht wird.
In der Ausführungsform nach Fig. 2, die in F'ig. $ im Schnitt nach der Linie I-I -dar- gestellt .ist, ist über dem Zylinder A eine Hülse G angebracht, die am obern Randeine radial nach innen ragende Gegenauflage H trägt, welche auf der Feder aufliegt, sobald dieselhe auf Zug beansprucht wird.
Durch das Verschieben der Hülse G gegenüber -dem Zylinder A kann die wirksame Federlänge, bei Beanspruchung auf Zug, in gewissen Grenzen bändert werden. Dadurch wird er reicht, dass die Steilheit der Weg-Kraft-Kenn linie :einer Drehungsfeder für Zug, bei gleich bleibender Steilheit für Druck, verschiedene Grössen hat. Nach dem Einstellen kann die Gegenauflage H, respektive der Zylinder G, beispielsweise mit einer Schraube .7 in ihrer Lage gesichert werden.
Device for increasing the effective spring length in torsion springs. In apparatus engineering, torsion springs are often used as energy stores and for generating counterforces. In many cases, the displacement-force characteristic of such a spring has a very specific steepness.
The present invention relates to a device for regulating the effective seed length of a torsion spring, in which the spring can be screwed more or less deeply into a thread. Such a device can be used, for example, in an accelerometer. The accompanying drawing shows embodiments of the subject invention.
In FIG. 7, A is a cylindrical body, in the surface of which a thread B is cut. The inner diameter C and the rising ring of the thread: B agree with the inner diameter D respectively. the pitch of the torsion spring E corresponds.
To hold one end of the spring in place. if you screw the same into thread B of cylinder A. -The deeper the spring is screwed into the cylinder, the shorter the free spring length, and the displacement-force characteristic changes accordingly. After the spring length has been set, the spring can be secured against undesired rotation by a screw F, for example.
The second spring end can be attached in a known manner.
In the embodiment described above, the effective length of the spring, whether in tension or compression, is the same, large. The steepness of the displacement-force characteristic does not change whether the spring is subjected to tension or compression.
In the embodiment according to FIG. 2, which is shown in FIG. $ is shown in section along the line I-I, a sleeve G is attached above the cylinder A, which carries a radially inwardly protruding counter-support H on the upper edge, which rests on the spring as soon as it is subjected to tension.
By moving the sleeve G in relation to the cylinder A, the effective length of the spring can be changed within certain limits when subjected to tensile stress. This means that the steepness of the displacement-force characteristic curve: a torsion spring for tension, while the steepness for pressure remains the same, has different sizes. After setting, the counter support H or the cylinder G can be secured in their position with a screw .7, for example.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH236279T | 1943-08-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH236279A true CH236279A (en) | 1945-01-31 |
Family
ID=4459367
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH236279D CH236279A (en) | 1943-08-11 | 1943-08-11 | Device for adjusting the effective spring length in torsion springs. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH236279A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE929761C (en) * | 1952-11-27 | 1955-07-04 | Samson Appbau Aktien Ges | Diaphragm valve with reversible pressure pulse control |
DE967497C (en) * | 1953-02-28 | 1957-11-14 | Licentia Gmbh | Hydraulic control for steam or gas turbines with two or more servo motors |
DE1047628B (en) * | 1952-08-08 | 1958-12-24 | Heinrich Lanz Ag | Spring-loaded speed controller with adjustable speed |
DE2805223A1 (en) * | 1977-02-08 | 1978-08-10 | Snecma | DEVICE FOR THE LINEAR CONVERSION OF A STRAIGHT MOTION INTO A FORCE AND REVERSE |
DE2924135A1 (en) * | 1978-06-28 | 1980-01-03 | Mo Mash Z Im Kalinina | HYDRAULIC AXIAL PISTON MACHINE |
FR2435363A1 (en) * | 1978-09-06 | 1980-04-04 | Houdaille Lelaurain Sa | Adjustable suspension element for vehicle - incorporates clamping ring adjustable on upper part of coil string |
DE2942135A1 (en) * | 1979-10-18 | 1981-04-30 | Volkswagenwerk Ag, 3180 Wolfsburg | UNDERLAY OF ELASTIC MATERIAL FOR COIL SPRINGS OF A MOTOR VEHICLE SUSPENSION |
DE3421560A1 (en) * | 1984-06-09 | 1985-12-12 | Robert Bosch Gmbh, 7000 Stuttgart | DEVICE FOR ADJUSTING THE SPRING CHARACTERISTICS OF A COIL SPRING |
-
1943
- 1943-08-11 CH CH236279D patent/CH236279A/en unknown
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1047628B (en) * | 1952-08-08 | 1958-12-24 | Heinrich Lanz Ag | Spring-loaded speed controller with adjustable speed |
DE929761C (en) * | 1952-11-27 | 1955-07-04 | Samson Appbau Aktien Ges | Diaphragm valve with reversible pressure pulse control |
DE967497C (en) * | 1953-02-28 | 1957-11-14 | Licentia Gmbh | Hydraulic control for steam or gas turbines with two or more servo motors |
DE2805223A1 (en) * | 1977-02-08 | 1978-08-10 | Snecma | DEVICE FOR THE LINEAR CONVERSION OF A STRAIGHT MOTION INTO A FORCE AND REVERSE |
DE2924135A1 (en) * | 1978-06-28 | 1980-01-03 | Mo Mash Z Im Kalinina | HYDRAULIC AXIAL PISTON MACHINE |
FR2435363A1 (en) * | 1978-09-06 | 1980-04-04 | Houdaille Lelaurain Sa | Adjustable suspension element for vehicle - incorporates clamping ring adjustable on upper part of coil string |
DE2942135A1 (en) * | 1979-10-18 | 1981-04-30 | Volkswagenwerk Ag, 3180 Wolfsburg | UNDERLAY OF ELASTIC MATERIAL FOR COIL SPRINGS OF A MOTOR VEHICLE SUSPENSION |
US4475725A (en) * | 1979-10-18 | 1984-10-09 | Volkswagenwerk Ag | Elastic support for helical springs |
DE3421560A1 (en) * | 1984-06-09 | 1985-12-12 | Robert Bosch Gmbh, 7000 Stuttgart | DEVICE FOR ADJUSTING THE SPRING CHARACTERISTICS OF A COIL SPRING |
FR2565647A1 (en) * | 1984-06-09 | 1985-12-13 | Bosch Gmbh Robert | DEVICE FOR ADJUSTING THE ELASTICITY CHARACTERISTIC OF A HELICOIDAL SPRING |
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