![Hydraulic drive](/abs-image/US/2007/01/18/US20070012171A1/abs.jpg.150x150.jpg)
基本信息:
- 专利标题: Hydraulic drive
- 专利标题(中):液压驱动
- 申请号:US10557023 申请日:2004-05-14
- 公开(公告)号:US20070012171A1 公开(公告)日:2007-01-18
- 发明人: Stefan Schmidt , Rolf Heidenfled
- 申请人: Stefan Schmidt , Rolf Heidenfled
- 申请人地址: DE Stuttgart 70184
- 专利权人: Bosch Rexzroth AG
- 当前专利权人: Bosch Rexzroth AG
- 当前专利权人地址: DE Stuttgart 70184
- 优先权: DE10322169.7 20030516
- 国际申请: PCT/DE04/01014 WO 20040514
- 主分类号: F01B25/02
- IPC分类号: F01B25/02
摘要:
What is disclosed is a hydraulic drive mechanism for a blanking or forming machine comprising a working cylinder having several pressure chambers, the piston of which acts directly or indirectly on a workpiece to be processed, wherein at least one pressure chamber of the working cylinder for retracting and extending the piston is adapted to be subjected to a tank pressure or a supply pressure via a continuously adjustable valve, and comprising a valve assembly arranged upstream of the continuously adjustable valve, whereby an inlet port of the continuously adjustable valve may be subjected to a higher or lower supply pressure, wherein the valve assembly comprises a switching valve adapted to be switched over between a basic position and a switching position in dependence on the load pressure at the working cylinder in order to tap the supply pressure from a low-pressure source or from a high-pressure source.
摘要(中):
所公开的是一种用于冲裁或成型机的液压驱动机构,其包括具有多个压力室的工作缸,该工作缸的活塞直接或间接地作用在待加工的工件上,其中用于回缩的工作缸的至少一个压力室 并且延伸的活塞适于经由连续可调节的阀进行罐压力或供给压力,并且包括设置在连续可调节阀的上游的阀组件,由此可连续调节的阀的入口可以经受 更高或更低的供应压力,其中阀组件包括适于根据工作气缸处的负载压力在基本位置和开关位置之间切换的切换阀,以便从低压源 或来自高压源。
公开/授权文献:
- US07370569B2 Hydraulic drive 公开/授权日:2008-05-13
IPC结构图谱:
F | 机械工程;照明;加热;武器;爆破 |
--F01 | 一般机器或发动机;一般的发动机装置;蒸汽机 |
----F01B | 一般的或变容式的机器或发动机,如蒸汽机 |
------F01B25/00 | 调节、控制或安全装置 |
--------F01B25/02 | .通过改变工作流体的吸入或排出而进行调节或控制,例如通过改变压力或流量 |