CH197151A - Axle with at least one thickening, in particular for bicycles, and method for their production. - Google Patents
Axle with at least one thickening, in particular for bicycles, and method for their production.Info
- Publication number
- CH197151A CH197151A CH197151DA CH197151A CH 197151 A CH197151 A CH 197151A CH 197151D A CH197151D A CH 197151DA CH 197151 A CH197151 A CH 197151A
- Authority
- CH
- Switzerland
- Prior art keywords
- thickening
- axle
- bicycles
- production
- workpiece
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/02—Dead axles, i.e. not transmitting torque
- B60B35/04—Dead axles, i.e. not transmitting torque straight
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/08—Upsetting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/06—Making machine elements axles or shafts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/02—Hubs adapted to be rotatably arranged on axle
- B60B27/023—Hubs adapted to be rotatably arranged on axle specially adapted for bicycles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2310/00—Manufacturing methods
- B60B2310/20—Shaping
- B60B2310/208—Shaping by forging
- B60B2310/2082—Shaping by forging by swaging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2310/00—Manufacturing methods
- B60B2310/20—Shaping
- B60B2310/211—Shaping by folding or bending
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2310/00—Manufacturing methods
- B60B2310/20—Shaping
- B60B2310/232—Shaping by milling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2360/00—Materials; Physical forms thereof
- B60B2360/10—Metallic materials
- B60B2360/102—Steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2900/00—Purpose of invention
- B60B2900/10—Reduction of
- B60B2900/112—Costs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2900/00—Purpose of invention
- B60B2900/10—Reduction of
- B60B2900/113—Production or maintenance time
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/10—Road Vehicles
- B60Y2200/13—Bicycles; Tricycles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Description
Achse mit mindestens einer Verdickung, insbesondere für Fahrräder, und Verfahren zu deren Herstellung. Die bisher bekannten Achsen mit minde stens einer Verdickung sind aus dem Vollen, das heisst aus einem Werkstück vom Durch messer der Verdickung durch Drehen oder Schmieden im Gesenk herausgearbeitet.
Die Achse gemäss der Erfindung, worun ter auch eine Welle zu verstehen ist, zeichnet sich dadurch aus, dass die Verdickung durch Stauchung in axialer Richtung erzeugt ist. Bei der Herstellung dieser Achse wird also von einem Werkstück vom Durchmesser der unverdickten Achse ausgegangen und kann, da das Abdrehen oder Schmieden wegfällt, zirka 30 bis 50 % an Material und Arbeits zeit erspart werden.
Ausführungsbeispiele des Erfindungs gegenstandes seien anhand der Zeichnung er läutert.
Fig. 1 veranschaulicht im Vertikalschnitt und im Grundriss eine Vorrichtung zur Her stellung von Achsen mit Verdickungen aus einem glattzylindrischen Stahlstück nach Fig. 2. Nachdem das Werkstück b vom Durch messer d auf elektrischem Wege in kurzer Frist auf Rotglut erwärmt worden ist, wird dasselbe senkrecht in die eigens dazu einge richtete Stauchvorrichtung (die an jeder Ex zenter- oder Spindelpresse angebracht wer den kann) auf die einstellbare Widerlager schraube w gestellt. Das Ingangsetzen der Maschine bezw. das Niedergehen des Stauch kopfes<I>a</I> auf das erwärmte Werkstück<I>b</I> be wirkt eine Verdickung b' zwischen dem Ge senkteil g und dem Stauchkopf a.
Diese Ver dickung kann entsprechend der Fasson des Gesenkteils grösser oder kleiner, wie auch in verschiedenen Formen gewählt werden. Die Achszapfenlänge kann durch Einstellen des Werkstückes in der Höhe mittels der Wider lagerschraube w geregelt werden.
Durch Umkehren und Wiedererwärmen des Werkstückes b kann mindestens eine zweite Verdickung angestaucht werden, so dass eine Fahrradachse nach Fig. 3 mit zwei Verdickungen b1 vom. Durchmesser D ent steht.
An dieser Achse sind dann noch diese Verdickungen sowie die beiden Enden zu egalisieren und die erforderlichen Keilhalmen einzufräsen.
Fig. 4 stellt eine horizontale Stauchvor richtung dar, mit welcher gleichzeitig zwei Verdickungen bi hervorgebracht werden können.
Die Erwärmung des Arbeitsstückes kann durch die beweglichen Kupferelektroden e er folgen.
Fig. 5 bis 10 veranschaulichen einige ver schiedene Ausführungen von Achsen und Achsteilen, welche sieh durch Stauchung bei entsprechender (Testalt der Pressköpfe und Gesenke herstellen lassen.
Axle with at least one thickening, in particular for bicycles, and method for their production. The previously known axes with at least one thickening are worked out from the solid, that is, from a workpiece with the diameter of the thickening by turning or forging in the die.
The axis according to the invention, which also includes a shaft, is characterized in that the thickening is produced by upsetting in the axial direction. In the manufacture of this axle, a workpiece with the diameter of the unthickened axle is assumed and, as there is no turning or forging, around 30 to 50% of material and labor time can be saved.
Embodiments of the subject invention are explained with reference to the drawing.
Fig. 1 illustrates in vertical section and in plan a device for the manufacture of axes with thickenings from a smooth cylindrical piece of steel according to FIG. 2. After the workpiece b has been electrically heated to red heat in a short period of time, the same is perpendicular placed on the adjustable abutment screw w in the upsetting device set up specifically for this purpose (which can be attached to any eccentric or screw press). The start of the machine respectively. the lowering of the upsetting head <I> a </I> onto the heated workpiece <I> b </I> produces a thickening b 'between the lowering part g and the upsetting head a.
This Ver thickening can be selected larger or smaller, as well as in different shapes, according to the shape of the die part. The journal length can be regulated by adjusting the height of the workpiece using the abutment screw w.
By reversing and reheating the workpiece b, at least one second thickening can be upset, so that a bicycle axle according to FIG. 3 with two thickenings b1 from. Diameter D arises.
These thickenings and the two ends must then be leveled on this axis and the necessary wedge stems milled in.
Fig. 4 shows a horizontal Stauchvor direction, with which two thickenings bi can be produced at the same time.
The workpiece can be heated by the movable copper electrodes.
Fig. 5 to 10 illustrate some ver different designs of axles and axle parts, which can be produced by upsetting at the appropriate (Testalt of the press heads and dies.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH197151T | 1937-06-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH197151A true CH197151A (en) | 1938-04-15 |
Family
ID=4440745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH197151D CH197151A (en) | 1937-06-28 | 1937-06-28 | Axle with at least one thickening, in particular for bicycles, and method for their production. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH197151A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2519890A1 (en) * | 1982-01-21 | 1983-07-22 | Thun Alfred & Co Gmbh | PROCESS AND DEVICES FOR MANUFACTURING CRANKSET CRANKS |
-
1937
- 1937-06-28 CH CH197151D patent/CH197151A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2519890A1 (en) * | 1982-01-21 | 1983-07-22 | Thun Alfred & Co Gmbh | PROCESS AND DEVICES FOR MANUFACTURING CRANKSET CRANKS |
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