A Preload Adjustable Single-sided Thin Film Restrictor
A membrane throttle and throttle technology, applied in the direction of diaphragm, diaphragm valve, valve details, etc., can solve the problems of the throttle ratio not in the design state, the pre-pressure is not adjustable, and the static pressure system fails to work.
Inactive Publication Date: 2018-12-28
QILU UNIV OF TECH +1
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Problems solved by technology
[0003] At present, the status quo of the preloaded single-sided film restrictor is that its preload is not adjustable during use, its application range is limited, and it cannot adapt to the requirements of changing working conditions. This not only makes the throttling ratio not in the ideal design state, but also And reduce the load-bearing stiffness, and in worse cases, it will cause the static pressure system to fail
[0004] To sum up, in the prior art, there is still no effective solution to the problem of preload adjustment of single-sided membrane restrictors.
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[0036] It should be pointed out that the following detailed descriptions are all illustrative and are intended to provide further explanations for the application. Unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.
[0037] It should be noted that the terms used here are only for describing specific implementations, and are not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate There are features, steps, operations, devices, components, and / or combinations thereof.
[0038] As introduced in the background art, there is a problem in t...
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The invention discloses a pre-compaction-adjustable single-side thin film throttling device, solves the problem that pre-compaction of the single-side thin film throttling device is unadjustable and has effects that the pre-compaction of the throttling device can be adjustable, and the throttling device can meet the application requirement of working condition changes. According to the technical scheme, the pre-compaction-adjustable single-side thin film throttling device comprises an upper valve body and a lower valve body, an elastic thin film is arranged between the upper valve body and the lower valve body, a pre-compaction cavity is formed between the bottom of the upper valve body and the elastic thin film, the pre-compaction cavity communicates with an upper oil discharging hole through a throttling conical hole, and the throttling conical hole is internally provided with an adjustment cone; and a throttling cavity is formed between the top of the lower valve body and the elastic thin film, the top of the lower valve body is furthermore provided with a throttling table, the throttling cavity communicates with a lower oil discharging hole through a throttling gap between the throttling table and the elastic thin film, and the adjustment cone performs vertical position adjustment in the throttling conical hole so as to adjust the pre-compaction of the pre-compaction cavity.
Description
Technical field [0001] The invention relates to the technical field of static pressure in precision machinery, in particular to a single-sided membrane restrictor with adjustable preload. Background technique [0002] Hydrostatic technology has a wide range of applications in precision machinery. Hydrostatic guides, hydrostatic bearings, and hydrostatic screws are typical application examples. The restrictor is a key component of these static pressure equipment, and its performance has an important influence on these static pressure equipment. Among them, the film throttle is the most widely used one, divided into single-sided film throttling and double-sided film throttling. The single-sided film restrictor can adjust the throttling gap by preloading, so as to achieve the ideal throttling effect, which has attracted attention in recent years. Germany and Taiwan have conducted systematic research and application. [0003] At present, the current status of the pre-compressed sing...
Claims
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IPC IPC(8): F16K7/17F16K47/08F16C32/06F16H25/24
CPCF16C29/025F16C32/0648F16H25/24F16K7/17F16K47/08
Inventor 李春玲路长厚
Owner QILU UNIV OF TECH