METHOD AND DEVICE TO ASSEMBLE SERVO VALVE

Japanese Patent JP3761926

B2

PROBLEM TO BE SOLVED: To quickly, easily and safely assemble a servo valve in a position centered under hydraulic pressure by centering the servo valve rotating a valve housing, pushing a preliminary assembling unit in the valve housing, and mutually pressing an output shaft and the valve housing in an overlapping region.
SOLUTION: Though a valve housing 5 can rotate to an input shaft 3 together with an adjusting ring 8, the input shaft 3 can move only in the axial direction together with an output shaft 4 and a torsion bar 5. When pressure is applied, the valve housing 5 and the input shaft 3 are mutually centered under hydraulic pressure by an adjustment of the adjusting ring 8. When a structure part is once centered under hydraulic pressure, pressure acting in the axial direction is applied to a stamp 10 having an engaging part 28 in an upper area, and the stamp 10 moves the output shaft 4 and the input shaft 3 in the axial direction together with the torsion bar 6 positioned between them. At this time, the output shaft 4 is pushed in a fastening area 20 in the valve housing 5, and both structure members are mutually pressed.

Arnund Pfeiffer

JP17311695A

March 29, 2006

July 10, 1995

Click for automatic bibliography generation  

Taerwei Ferwerk Systme Gesell Shaft Mitt Beschlenktel Haftung Und Company Comandate Gesell Shaft

B62D5/083; B23P19/02; F15B13/042; B23P19/04; B25B27/24; F15B9/08; (IPC1-7): F15B13/042

JP2133283A
JP5345571A
JP7144651A
JP2106467A
JP5032173A
JP1175570A
JP6072347A
JP58108965U
JP6065159U

Hideto Asamura
Hajime Asamura
Yukio Iwamoto
Toru Mori

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