Title:
HYDRAULIC BEARING CONTROL DEVICE
Document Type and Number:
Japanese Patent JPS6053215
Kind Code:
A
Abstract:
PURPOSE:To avoid hunting phenomenon and reduce cost and maintenance expense for oil contamination, by using an electrical pressure control valve of an electrical-hydraulic control system with no use of a full hydraulic displacement control mechanism to decrease a pressure gain. CONSTITUTION:When a center shaft 6 is displaced from a neutral position by a thrust load F, a displacement detector 32 feeds a signal proportional to an amount of the displacement to an integrator 41. The integrator 41 supplies an output signal, through a pressure control amplifier 42, to a controller for controlling a discharge oil pressure of an electrical pressure control valve 43 connected an oil pressure induction port 44 with an oil pressure source 19. A discharge port 45 and a drain port 46 of the electrical pressure control valve 43 are connected respectively to an oil pressure supply hole 2a and a drain hole 2b of a hydraulic bearing 29c formed in an ends-closed cylinder 25 including a pressure chamber 27 and a drain oil chamber 28.
Inventors:
SATOU YOSHINORI
TANONAKA YUUJI
MIYAUCHI NAOTAKA
TANONAKA YUUJI
MIYAUCHI NAOTAKA
Application Number:
JP16002583A
Publication Date:
March 26, 1985
Filing Date:
August 30, 1983
Export Citation:
Assignee:
JAPAN STEEL WORKS LTD
International Classes:
F16C39/04; F16C32/06; (IPC1-7): F16C32/06
Domestic Patent References:
| JPS52151497A | 1977-12-15 |
Attorney, Agent or Firm:
Ishido