Hydraulic control block with valve discs

Abstract

Disclosed is a hydraulic control block with a plurality of individual valve discs, which are clamped between a connection plate and an end plate by tie rods. The tie rods are releasable, whereby a middle valve disc can be removed without the control block has to be detached. According to a first scheme, the control block has four pull bars, two of the pull rods form a slide rail for vertically pulling out a value disc. The pulling can be in an upward or forward manner. The other two of the tie rods form a rear stopper or a lower support under the installation state of the valve discs. According to a second scheme, the control block has three pull rods, the rear pull rod forms a swing support for the valve discs and particularly for the valve discs to be detached, so that the valve discs can swing upwards after a front pull rod is taken out. The lower pull rod forms a support of the valve discs.

Description

technical field

[0001] The invention relates to a hydraulic control block according to the preamble of claim 1 with a plurality of modularly combined valve plates. Hydraulic valves include such valve segments, which are used, for example, to supply and control individual hydraulic consumers of a mobile working machine. In this case, the individual substantially rectangular parallelepiped valve plates that bear against one another are clamped between a connecting plate and an end plate or a final valve plate. A non-positive and sealing fit between the valve plates is particularly important when the valve plates form a through transverse channel, such as a tank channel. Background technique

[0002] DE 198 29 530 A1 shows a control block whose valve plates are pressed together via three screws. In this case, the bolts run through corresponding through-openings of all valve plates.

[0003] A disadvantage of such a control block is the considerable assembly effort required t...

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