博士力士乐工程机械液压培训中文版2PPT课件
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直动式溢流阀的结构
价廉 经典结构:
– 缓冲间隙
– 导向,防偏置.
– 偏流盘：流线型 泄油口,平衡液动 力.
将整个调压范围分区，
采用不同刚度的调压 弹簧，以使特性曲线 更加理想
大流量的场合压力波
动大、装配调节困 难…
14th – 15th January 2004, Bosch Rexroth in China © All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications.
液压半桥
14th – 15th January 2004, Bosch Rexroth in China © All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications.
8
We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination.
泄荷阀ＤＢＷ的泄荷缓冲板
利用电信号泄荷响应很快，
易造成系统的压力尖峰， 噪音等，
7
We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination.
泄荷阀：ＤＢＷ
14th – 15th January 2004, Bosch Rexroth in China © All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications.
为了解决上述问题，加装
缓冲板，见图示
14th – 15th January 2004, Bosch Rexroth in China © All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications.
4
We also retain sole power of dBaidu Nhomakorabeasposal, including all rights relating to copying, transmission and dissemination.
先导式溢流阀的基本原理
由直动式的缺陷而
来.
液压力与弹簧力;
液压力与液压力
2
We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination.
插装式结构：
14th – 15th January 2004, Bosch Rexroth in China © All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications.
6
We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination.
14th – 15th January 2004, Bosch Rexroth in China © All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications.
5
We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination.
先导式溢流阀的结构
14th – 15th January 2004, Bosch Rexroth in China © All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications.
1
We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination.
锥阀结构
球阀结构
14th – 15th January 2004, Bosch Rexroth in China © All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications.
3
We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination.
应用举例：
直动式阀的缺陷：
ppk•(xx) A
•大流量的场合压 力波动大、稳定 性差 •装配调节困难
14th – 15th January 2004, Bosch Rexroth in China © All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications.
价廉 经典结构:
– 缓冲间隙
– 导向,防偏置.
– 偏流盘：流线型 泄油口,平衡液动 力.
将整个调压范围分区，
采用不同刚度的调压 弹簧，以使特性曲线 更加理想
大流量的场合压力波
动大、装配调节困 难…
14th – 15th January 2004, Bosch Rexroth in China © All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications.
液压半桥
14th – 15th January 2004, Bosch Rexroth in China © All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications.
8
We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination.
泄荷阀ＤＢＷ的泄荷缓冲板
利用电信号泄荷响应很快，
易造成系统的压力尖峰， 噪音等，
7
We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination.
泄荷阀：ＤＢＷ
14th – 15th January 2004, Bosch Rexroth in China © All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications.
为了解决上述问题，加装
缓冲板，见图示
14th – 15th January 2004, Bosch Rexroth in China © All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications.
4
We also retain sole power of dBaidu Nhomakorabeasposal, including all rights relating to copying, transmission and dissemination.
先导式溢流阀的基本原理
由直动式的缺陷而
来.
液压力与弹簧力;
液压力与液压力
2
We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination.
插装式结构：
14th – 15th January 2004, Bosch Rexroth in China © All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications.
6
We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination.
14th – 15th January 2004, Bosch Rexroth in China © All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications.
5
We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination.
先导式溢流阀的结构
14th – 15th January 2004, Bosch Rexroth in China © All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications.
1
We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination.
锥阀结构
球阀结构
14th – 15th January 2004, Bosch Rexroth in China © All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications.
3
We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination.
应用举例：
直动式阀的缺陷：
ppk•(xx) A
•大流量的场合压 力波动大、稳定 性差 •装配调节困难
14th – 15th January 2004, Bosch Rexroth in China © All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications.