DD209351A3 - CYLINDER FORMING LIFTING ELEMENT - Google Patents

Abstract

The invention relates to a cylinder-shaped lifting element for movement and Steuerungvorgaenge of machines and devices, preferably for elastic Bewegungsvorgaenge without hard stop and with high Leistungsfaehigkeit. The aim of the invention is to provide a cylinder-shaped lifting element for high performance requirements, which is due to low production costs for mass production. The essence of the invention is characterized in that between a working cylinder of any cross-section and guided by Fuehrungsringe plunger in a staggered, coated textile bellows whose warp and weft threads in the cylindrical part at an angle to the longitudinal axis and run a valve for the Pressure medium has arranged, that the working cylinder has a lock, which can take over a support function at any position within the stroke and that using the interior of the plunger to increase the lifting height with the same external dimensions other lifting elements can be arranged telescopically.

Description

237951 6

Title of the invention Cylinder-shaped lifting element

Field of application of the invention;

The invention relates to an avlinderförmigem lifting element for movement and control operations of machines and devices * It is used in industry and construction, especially where elastic motion operations without hard stop and perform with high performance ..

Characteristic of the known technical solutions

In industry and construction are known for the realization of movement and control operations, in particular for the realization of lifting operations, cylindrical pistons, levers and spindles. These are prone to failure at high loads and are constantly serviceable. Most of these devices perform the motion only with consistent force and often have a hard impact. "

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Are known cylindrical lifting elements that consist of an elastic tubular plastic shell and the front side arranged discs * In the de-energized state, the middle ring zone of the shell is V-shaped buckled inward. The plastic stretch jacket limits lifting height and lifting force strong, locking devices are not available.

Known for generating a lifting movement is also a .Hubelement, consisting of a shell, a frontally positively guided Hübelement and a fluid space arranged between the two, The Pluidraum is bounded by a closed on all sides, flexible, elastic and fluid-tight hollow body. Despite the complex construction, the selected positive guidance only results in a lack of lateral stability, the effective height is limited in the known design. Ss lacks the possibility of telescoping from several individual elements, locking devices are not present.

Object of the invention

The aim of the invention is to provide a cylinder-shaped lifting element for high performance requirements, which is due to low production costs for mass production,.

Explanation of the essence of the invention

The object of the invention is to make a lifting element be: simplest design so that

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For higher lifting power requirements, movements can be carried out elastically, safely and with a relatively high lifting height.

According to the invention the object is achieved in that between a working cylinder and a plunger a self-inverted, coated textile Ealgen is arranged with a valve for the pressure medium. In this case, the working cylinder arbitrary cross-section, but in any case with rounded corners possess. Guide rings guarantee precise guidance of the working cylinder on the outer guide casing or the detached outer guide construction of the plunger. The warp and weft threads of the bellows extend in its cylindrical part at an angle vpn about 45 ° to the longitudinal axis. The working cylinder and the outer guide casing of the immersion basket ens have detents that can take over a support function in any position within the stroke. Using the interior of the plunger several lifting elements can be arranged telescopically. The outer guide shell of the plunger is also executable as a dissolved construction. In reversed positioning of the lifting element with extending plunger additional load-receiving devices are located near the base to reduce the output height.

To move large complex constructions evenly, several lifting elements are connected in parallel. The feed of the pressure medium is preferably from a source. In this case, additional control devices are not required.

The lifting element according to the invention can be produced by varying the height and width ratio in all sizes and lifting force requirements that correspond to the conditions of use. The lifting element consists of a material-saving, easy-to-handle, easy-to-manufacture and easy-to-maintain construction »The selected type of guide of the working cylinder in the plunger brings an optimal ratio of lifting height to height. This effect is further enhanced by the telescopic arrangement of several lifting elements. The locking devices guarantee a comprehensive safety at any lifting height and in the event of an accident. The application of the lifting elements enables a cost-effective movement of the most diverse designs. "

AusfuhrungsbeispieI

The invention will be explained in more detail below using an example embodiment. In the accompanying drawings show:

Pig. 1: Section of the lifting element in the retracted state

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Pig. 2: Section of the lifting element in extended

State

Pig. 3i section telescopically arranged lifting elements in retracted position

Fig * 4ί section telescopically lined lifting elements in the extended state

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Figures 1 and 2 show a cylindrical lifting element consisting of working cylinder 1, plunger 2, guide rings 3 and 4 bellows.

The Einsatz1erneute work on the principle of the working cylinder with plunger By one on the valve 5, which can be designed as a two-way cock with overpressure protection fastened

-] - j5 pressure hose is a print medium, such as air, zugefü hr t. The pressure moves the working cylinder 1 away from the plunger 2. This guarantee guide rings 3, attached to the end of the working cylinder 1 and at the end of the outer guide shell of the plunger 2, an exact guide during the lifting process. The guide rings 3 ensure compliance with the gap between plunger 2 and cylinder 1 for the bellows 4, they also serve as a stop 6 "The working cylinder 1 also has stops for the retracted state of the lifting element The working cylinder 1 and the outer guide casing of the plunger 2 have detents 7, which can take over a support function in each position within the stroke- The warp and Schaf filaments of the inverted, coated, textiles Bellows 4 in its cylindrical portion at an angle of about * 45 ° to the longitudinal axis * The bellows 4 are only small amounts supplied to the pressure medium, which cause a relatively slow, elastic and powerful movement of the lifting element.

FIGS. 3 and 4 show telescopically lined lifting elements. They consist aas already mentioned individual elements, wherein the plunger 2

the outer lifting element simultaneously forms the working cylinder 1 of the inner lifting element. Here dex guide ring 3 of the inner Hubeiernen- · tea on the outer guide shell of the plunger of the outer lifting element "Between the bellows 4, a connecting element 8, for example, a quick coupling, arranged, which ensures a passing of the pressure medium.

Claims (4)

237951 5 Invention claims 1. Cylindrical lifting element, characterized in that between a working cylinder (1) of any cross-section, with or without rounded corners, and by guide rings (3) exactly guided plunger (2) in a inverted, coated textile bellows (4), the warp and weft threads in the cylindrical part at an angle of about * 45 ° to the longitudinal axis, and having a valve (5) for the pressure medium, is arranged, that the working cylinder (1) has a lock (7), the at Any position within the stroke can take a support function, and that using the interior of the plunger 2, cylindrical lifting element according to item 1, characterized in that the outer guiding   shell of the plunger (2) may be formed by arranging openings as a dissolved construction. (2) to increase the lifting height at constant outer dimensions further lifting elements, consisting of plunger (2), guide ring (3), bellows (4), valve (5), locking (7) and connecting element (8) be arranged telescopically can" 3-, cylinder-shaped lifting element according to item 1, characterized in that when using the lifting element with extending plunger (2) to reduce the Aäsgangshubhöhe additional load bearing devices in the amount of detents (7) are arranged, 379 5 1 b 4. Cylindrical lifting element according to the points 1 to 3, characterized in that for the uniform movement of large complex constructions several parallel lifting elements, preferably with feed of the pressure medium from a source, are arranged without additional control device- For this 2 sheets of drawings Documents considered: DE-OS 2 550898, 2639738 (B 66 F 3/40) DRP 395103 (.35 d, 5/04)
SU 223289 (B 66 F 1/08)