EP2718571B1 - Hydropneumatic device - Google Patents

Description

State of the art

Hydropneumatic devices such as pneumohydraulic drive systems, in particular with integrated pressure intensification are known. Such devices are used for example as press arrangements for different tasks, for example for pressing or pressing, joining by forming or for clinching, clinching, riveting, punch riveting, solid or semi-hollow punch rivets. Essential components of a hydropneumatic device are, for example, a translator part with a linearly movable translating piston and a working part, wherein in the working part of a working piston performs a lifting movement while working. The working piston is usually moved either in a rapid rapid traverse either pneumatically or hydraulically to a desired position to the front, wherein after striking a component, a power stroke begins. Here, in the translator part from, for example, pneumatic low pressure of 2 to 10 bar, which acts on the booster piston and moves it so that hydraulic fluid flows from the translator into the working part, a hydraulic high pressure of for example 250 to 400 bar generated on a hydraulic surface on Working piston acts and this moves, so that a high pressing force is generated during the power stroke. With a return stroke of the working and booster piston, which takes place in a direction opposite to the movement of the working or booster piston during the express and power stroke, the Working and the booster piston brought into a starting position, which is done in particular pneumatically by switching an air pressure on a return stroke side of the two pistons of the working part and the translator part.

The working part and the translator part are hydraulically coupled to each other via a connecting portion, whereby a bidirectional passage of hydraulic fluid between the working part and the translator part is provided in a connecting line of the connecting portion. The connection line connects a hydraulic connection point on the working part with a hydraulic connection point on the translator part.

In a hydropneumatic device, the components or the working part and the translator parts must each be designed to match one another. Starting from a considered configuration, each change in one of the two components causes a change in the other component. A change may be due in particular to the adaptation of a hydropneumatic device to other delivery variables such as pressure and / or stroke path sizes.

The DE 103 17 412 A1 relates to a hydraulic unit with a driven by a pressure booster hydraulic cylinder, wherein the hydraulic pressure booster comprises a spring-loaded accumulator piston and an electromechanically actuable pressure piston.

The aim of the present invention is to improve the economy of the aforementioned devices, in particular with regard to different interpretations of the hydropneumatic devices.

This object is solved by claim 1.

In the dependent claims advantageous variants of the invention are shown.

The invention is first of a hydropneumatic device with a pressure booster, wherein the hydropneumatic device comprises a working part with a guided in the working part working piston and a translator part with a translator part guided in the booster piston, wherein a connecting portion for a hydraulic coupling the working part and the translator part is provided, which provides a connection line for a passage of hydraulic fluid between the working part and the translator part. An essential aspect of the invention is that the connecting portion comprises an at least substantially rigid, on the working part and the translator part mountable adapter component, in the interior of the connecting line is formed, wherein in the assembled state of the adapter component via the connecting line on the working part laterally existing Opening a hydraulic space of the working part is connected to a laterally present on the translator part opening of a hydraulic space of the translator part.

A laterally existing opening in this context means that the opening in a circumferentially surrounding the working or booster piston outer housing section z. B. a shell-housing section is present or a hydraulic space inside the working or. Translator parts ends there. Thus, a lateral access is provided with a direction which is at an angle to the longitudinal direction of the working or booster piston. The connecting line in the adapter component in the mounted state, in each case with the corresponding ends, adjoins ends of a line or hydraulic space section in the working part and in the translator part.

With the lateral connection, a front-side housing portion of the working or translator part remain free of an opening or of the adapter component, which z. B. in terms of a reduced overall length of the working and / or translator part is advantageous.

The adapter component is designed such that the adapter component in the assembled state with opposite to the adapter component existing main sides of the working part and the translator part is supported. In particular, the adapter component is supported in a planar manner via its opposite main sides on likewise planar or planar counterpart sections on the working part and the translator part. The opposite main sides of the adapter component are configured in particular similar. The counterparts in the translator and working part are preferably designed similar. Thus, the attachment or assembly of the adapter component or the assembly of the hydropneumatic device is particularly effective and easy.

The main sides of the adapter component and the associated mating sections on the working and translator seat are in the assembled state of the adapter component with each other in a surface contact, in particular z. B. by mutually adjacent planar surfaces which are pressed against each other. Thus, a high tightness can be ensured, so that it is ensured that no hydraulic fluid leaks. In addition, a comparatively high stability in the connection region of the translator part to the working part and thus also of the overall arrangement is advantageously achieved via the surface support.

With the hydropneumatic device according to the invention, an advantageous standardization of the components is provided. In particular, a production with high batch sizes is advantageously possible.

Heretofore, any change in one of the components of the hydropneumatic device, depending on the design of the particular hydropneumatic device, also causes a change in the other components. This is determined by constructive relationships explained in more detail below. For a given number of different hydropneumatic devices, it is necessary to select for each of the components exactly one associated type of other components.

For the design of a hydropneumatic device, for example, a total stroke of the hydropneumatic device is fundamental. The total stroke or the maximum possible stroke length results from the maximum possible rapid stroke and the maximum possible power stroke of the working piston. With a maximum possible stroke length of the working piston and the total length of the working part is determined. For the lifting movement of the working piston, in turn, a volume of oil corresponding to the total stroke of the working piston is required in a storage space in the translator part. In addition, for a desired power stroke on the working piston to provide a pre-auszulegender stroke of the booster piston in the translator part.

Thus, for the reasons mentioned, the working part and the translator part must each be individually matched to one another. Each change in one of the variables "total stroke" and / or "power stroke" entails a change in length of the entire device or hydropneumatic device and thus each of the several affected components on the working part and on the translator part. For a stroke or length change usually the working part must be changed by at least one intermediate piece, for example, extended in order to adapt the working part to the also different specifiable length of the associated translator part can. Also, the connecting portion, which has so far followed in the front end portion of the working and translator part, has to be adjusted so far. These measures or this length dependence of the working part and the translator part is for a standardization of components or a Production with larger batch sizes disadvantageous.

These disadvantages are eliminated according to the invention. With the respective lateral connection of the adapter component, the change in length in the translator part does not affect the working part and vice versa. Compared to the previous approach only comparatively few structurally graded components for the compilation of a desired number of gradations in the design are required. The manufacturing and storage costs compared to the previous situation is significantly lower and thus economically advantageous.

With a comparatively significantly reduced set of a component, wherein the set consists of constructive gradations of components with the same basic structure or components differing from the construction volume, the same design width can be covered, for which a large number of components has hitherto been necessary. For example, with regard to the hitherto necessary total number of components, according to the invention, about one third of components can be used to cover the corresponding combinations.

In particular, it is advantageous that the combinations are largely feasible by differently designed adapter components, which are structurally relatively simple compared to the working and translator part. For a wide diversification of the design of the overall arrangement or the hydropneumatic device, for. B. what concerns different total or power strokes, only comparatively few differently designed translator parts are needed z. In a set of types of translator parts. An even greater range of design possibilities can also be achieved by, in particular, a few differently configured working parts in a set of types of working parts.

In particular, according to the invention, a coupling principle can be provided, according to which the working and translator parts are made standardized, so that any Combination of the respective translator parts with the respective working parts to correspondingly different hydropneumatic device is possible.

It is particularly advantageous that with the invention, a working and translator part in different ways, for example via a rigid system or a system with flexible connecting means is hydraulically coupled.

Thus, any combination options of differently sized but in the basic structure similar translation parts with at least one type of working part economically advantageous.

Basically, a non-planar support z. B. only reduced support sections on the adapter component or on the work and / or on the translator part possible.

Further, it is advantageous that on the working part and on the translator part, an end section considered in the longitudinal direction is present, on which the adapter component is supported in the mounted state. The support is made in particular by two-dimensional pressing. For example, an end portion may be a separate part that attaches to the work or translator parts. As a rule, an end section is provided on a main body of the working and the translator part in the longitudinal direction, in each case at the end-side longitudinal ends. In particular, the base body comprises a housing section with the working or booster pistons guided inside and a pneumatic or hydraulic chamber. An end portion closes one end of the body tightly. At the other end of the base body, the other end portion provides a line section, via which hydraulic fluid from a hydraulic space in the interior of the body z. B. the translator part is guided to a lateral opening on the outside of the end portion, from which in the assembled state of the adapter component, the hydraulic fluid can flow through the adapter component and passes through an opening at the end portion of the working part in a hydraulic space of the main body of the working part and can flow back again.

The two end-side end portions on a base body are preferably separate components, for example end flanges for example cylinder cover, and can, for. B. with four elongated tie rods, which are longitudinally pressed against the base bodies at a distance against the front ends of the base body pressed. For this purpose, nuts can from the outside on a matching male threaded portion at the ends of the tie rods, the projecting through openings at least one End section rich, be screwed.

According to an advantageous embodiment of the subject invention, the adapter component is substantially configured as a cuboid component, with prepared attachment openings through which fastening means for mounting the adapter component on the working part and the translator part. Thus, the production of the adapter component can be comparatively simple and economically advantageous. The fastening means preferably extend laterally completely through a width of the adapter component, in particular perpendicular to the opposite main sides in anchoring openings on the working and translating part. In this way, the fastening means such. B. screw in the assembled state of the adapter component in the normal or vertical direction to the main sides and aligned to planar counterparts at the end portions. For this purpose, corresponding through holes or a corresponding hole pattern for the fastening means in the adapter component are to be provided, preferably in the area around a respective passage opening in the main sides for a passage of hydraulic fluid between the adapter component and the translator or working part. Advantageously, four screws are respectively provided for the connection of the adapter component with the topper and the working part, whereby a total of eight screws for the complete adapter component mounting are necessary.

An advantageous variant of the subject invention is characterized in that the end portion is adapted to the working part and the end portion on the translator part on the associated attachment openings on the adapter component for mounting the adapter component on the working part and the translator part with the fastening means. This is a corresponding hole pattern on the adapter component corresponding hole pattern to be provided on the corresponding counterpart section. Particularly preferably, the hole pattern on the one main side of the adapter component, which is provided for connection of the adapter component on the translator part, coinciding with the hole pattern on the opposite main side of the adapter component, which is provided for connection of the adapter component on the translator part. With the uniform hole pattern on the main sides of the adapter component of course, the associated hole pattern on the translator part and the working part is uniform. Thus, it is advantageously possible to mount an adapter component with a main side either on the translator part or the working part. In addition, when choosing a corresponding or symmetrically shaped hole pattern attachment of the adapter component in different twisted orientation possible, for. Example, a rotated by 180 degrees position of the adapter component starting from a first mounting orientation and a rotation about an axis that leads centrally through a hydraulic fluid opening in a main side of the adapter component. Thus, advantageously, the orientation of the translator part relative to the working part in the hydropneumatic device can be varied.

Preference is given to both openings of the connecting line in the adapter component, wherein an opening is present on each of the two main sides, each provided four through holes for a penetration of the fastening means, which are uniformly offset from each other circumferentially around the opening.

It is also advantageous that the end section on the working part and the end section on the translator part are each designed identically for mounting the adapter component on the working part and on the translator part. Thus, the adapter component can be brought with a main page either on the working part or on the translator part for mounting in abutment.

Further, it is advantageous that the connecting line in the adapter component has a connecting line section which extends in the assembled state of the adapter component in the longitudinal direction of the translator part and of the working part. In particular, when the longitudinal axes of the translator part and the working part at least approximately are aligned parallel in the assembled state of the adapter component, a distance in the longitudinal direction of the translator and the working part between the connection section or the adapter member to be connected openings in the working part and translator part are overcome by this connecting line section. Length differences between the translator and the working part, which is the case regularly, can thus be compensated. For this purpose, only the corresponding length of the connecting line section or possibly the adapter component is to be interpreted. The width of the adapter component can be unaffected by each remain the same. Thus, when using a set of different types of adapter components, which differ only in the length of the connecting line section or the adapter component, a lateral distance of translator and working part remains the same, in particular, the lateral distance can be kept relatively low. The lateral distance is in particular determined solely by the width of the adapter component, or by the distance between the two main sides of the adapter component, which in turn depends on the diameter of the connecting line section and the thickness of wall sections of the adapter component, wherein the wall sections in the respective direction on both sides of the Connect connecting line section.

In the assembled state, therefore, the working part and the translator part can be positioned comparatively close to one another in a width direction, with the result that the entire hydropneumatic device advantageously has a compact width.

An application of the invention relates to a kit comprising components of a hydro-pneumatic device for providing a hydropneumatic device comprising a translator and a hydraulically coupled by a connecting portion therewith working part, the kit a plurality of different types of the translator part and at least one type of working part and a set of Types one

An adapter component, wherein a hydraulic coupling of any type of the translator part with the at least one type of the working part by a suitable type of the adapter component of the set of types of the adapter component can be realized, wherein an adapter member is formed as a substantially rigid component.

The adapter component preferably provides the complete connecting portion between the translator part and the working part, in particular there are no flexible line sections such. B. in a hose connection available.

So far, hydropneumatic devices are assembled depending on the application or with regard to desired maximum force values and stroke paths of the working piston, wherein individually each translator part is adapted to the respective working part. An adaptation of the entire system makes usually an adaptation of the working part and the translator part or given additional components such as the connecting section necessary. With the kit, the advantages already mentioned above for the hydropneumatic device are realized with regard to economic advantages.

It is particularly advantageous that the set of types of the adapter components comprises different adapter components, wherein each adapter component of the several different adapter components are each designed to match one of the different translator parts and the at least one working part, wherein only by selecting a suitable adapter component from the set of Types of adapter components and its assembly to the relevant translator part and the relevant working part is a desired combination of a translator part of the plurality of respectively different translator parts with the at least one working part.

With the adapter components, so by mounting on the relevant working and translator part, a plurality of differently configured hydropneumatic devices can be provided without each adaptation to the working and translator part is necessary. There are only comparatively few differently designed translator parts, a set of types of adapter component and only one working part or only a few differently designed working parts needed. So far, the provision of corresponding hydropneumatic devices is possible only with a much higher cost of components or for warehousing and with a higher workload. In particular, the provision of the set of types of the adapter component is comparatively less complicated than a conversion or fanning of different work and translator parts.

It is also advantageous that an adapter component from the set of types of adapter components is adapted to a mounting portion on a translator part and a working part, that the assembly of the adapter component on the translator part and the working part in each case via at least one laterally extending through the adapter component connecting element , As a connecting element is in particular an elongated or slender plug element or a connecting screw and the like in question. In particular, a plurality of, for example, four connecting screws are provided, wherein in each case on the adapter side corresponding passage openings and working part side or translator part side openings are provided with anchoring sections or internal thread.

Advantageously, in the assembled state of the adapter component, a first connection element engages in a prepared opening in the mounting section of the translator part and a second connection element engages in a prepared opening in the working part. Thus, a similar connection arrangement of the adapter component to the working part and the translator part is given. This is with regard to the assembly or on the provision of appropriate fasteners as well as for Production of the adapter component and the corresponding mating sections on the working part and translator part advantageous.

Finally, it is also advantageous that a set of types of a hose adapter component having a flexible connecting line section is provided, wherein the hydraulic coupling of any type of the translating part with the at least one type of working part optionally with a matching type of the adapter component or a suitable type of hose adapter component from the set of types of hose adapter component is feasible. In principle, the advantages for components of the hydropneumatic device that are connected via flexible line sections or for attaching working parts and the translator part remote from one another over greater distances can thus be realized. It is advantageous that the formation of the at least one working part and the set of types of translator parts thereof is unaffected.

Preferably, there is not only one type of working part, but a set of types of working parts in the kit.

According to the invention connected via, for example, high-pressure hoses single and multiple systems can be advantageously realized. A single system is characterized by exactly one translator part and exactly one associated working part, which are hydraulically coupled to one another. A multiple system consists of a translator part, which is hydraulically coupled with several working parts, which takes place in particular via flexible connection systems. In this case, all working parts or even individual working parts of the several working parts can be controlled hydraulically connected by the translator part.

With the kit, it is possible with a comparatively small number of differently configured work and translator parts a wide range of combinations of hydropneumatic devices with to realize different total and power strokes.

According to the invention, all types of working and translating parts are designed with a standardized screw hole pattern, which is suitable both for the screw connection to a permanently connected hydropneumatic device part and for the connection of one or more hose systems, for example via a special hydropneumatic coupling to a hose system.

For example, for each working part of a set of types of working parts a translator part can be assigned, wherein the translator part is formed with a compiler jump. A compiler jump occurs when the diameter of the translator part is one dimension larger than the diameter of the working part.

Thus, a total length of the hydropneumatic device and a Eilhubvolumen on the respective working part is tunable. Thus, different designs can be realized, which have, for example, depending on the size of 12 to 15 millimeters power stroke. For smaller sizes and translator parts are designed coordinated, which allow a total stroke of 100 millimeters and a power stroke of 6 millimeters.

Likewise, it is possible to optionally attach a translator part with two or three translator jumps on a considered working part.

For example, a power stroke between 20 and 100 millimeters can be provided. The necessary rapid stroke volume is sufficient due to the dimensioning described above.

In addition, for each type of translator parts, a maximum length designed for the maximum buckling length of a plunger of the hydropneumatic device can be tuned. The rapid stroke volume results from this a plunger length in a high pressure tube.

With the adapter component, so to speak, only a single length-dependent component is installed in a hydropneumatic device. In this case, the translator part to the working part both in standard design, according to which the translator part is oriented downwards, as well as in a so-called Z-design can be formed, in which the translator part extends upward. Also a version rotated by 90 ° is mountable.

All combinations of translator parts with working parts can also be done with a total stroke adjustment. There, the total stroke can be set variably on the hydropneumatic device itself, for example by manually operated adjustment means.

An extension of other functions such as a cutting shock absorption, Einpressdämpfung, distance measurement, etc. is easily possible with the kit or the hydropneumatic device according to the invention.

figure description

Figur 1

eine stark schematisierte bekannte hydropneumatische Vorrichtung in Seitenansicht,

Figur 2

ein Arbeitsteil einer erfindungsgemäßen hydropneumatischen Vorrichtung in perspektivischer Ansicht,

Figur 3

ein Übersetzerteil einer erfindungsgemäßen hydropneumatischen Vorrichtung in perspektivischer Ansicht,

Figur 4 bis 6

jeweils eine perspektivische erfindungsgemäße hydropneumatische Vorrichtung mit einem Arbeitsteil und einem Übersetzerteil im zusammengebauten Zustand,

Figur 7 bis 9

weitere hydropneumatische Vorrichtungen mit einem Übersetzerteil und mindestens einem Arbeitsteil im zusammengebauten Zustand in perspektivischer Ansicht,

Figur 10

eine weitere erfindungsgemäße hydropneumatische Vorrichtung im zusammengebauten Zustand in Seitenansicht und

Figur 11

eine weitere hydropneumatische Vorrichtung gemäß der Erfindung in Explosionsdarstellung.

Further features and advantages of the invention will be explained in more detail with reference to various embodiments of the invention shown in the figures. In detail shows:

FIG. 1

a highly schematized known hydropneumatic device in side view,

FIG. 2

a working part of a hydropneumatic device according to the invention in a perspective view,

FIG. 3

a translator part of a hydropneumatic device according to the invention in perspective view,

FIGS. 4 to 6

in each case a perspective hydropneumatic device according to the invention with a working part and a translator part in the assembled state,

FIGS. 7 to 9

further hydropneumatic devices with a translator part and at least one working part in the assembled state in a perspective view,

FIG. 10

a further inventive hydro-pneumatic device in the assembled state in side view and

FIG. 11

a further hydropneumatic device according to the invention in an exploded view.

In the figures, corresponding elements in the different embodiments are sometimes used the same reference numerals.

FIG. 1 shows a hydropneumatic device according to the prior art, which is exemplified as a pneumohydraulic drive system or as a clinching or riveting device. Subsequently, the arrangement according to FIG. 1 referred to as a pressure intensifier 1. The pressure intensifier 1 consists essentially of three basic components with a working part 2, a translator part 3 and a connecting portion 7 with a connecting hose. The working part 2 comprises a reciprocating in a housing 4 of the working part 2 according to the double arrow P1 working piston 5. In FIG. 1 the fully extended position of the working piston 5 is shown, wherein the in FIG. 1 visible from a frontal Housing sections 4a of the housing 4 protruding part of the working piston 5 further extends into the interior of the working part 2 inside. The housing 4 comprises in the longitudinal direction of the working part 2 end opposite to the front-side housing portion 4a another end-side housing portion 4b and between these a lateral housing portion 4c, which circumferentially about the longitudinal axis S of the working part 2 of this limited.

During operation of the pressure booster 1, the working piston 5 carries out the actual lifting movement, wherein the working piston 5 is moved either pneumatically or hydraulically to the desired position forward in the direction of a component to be machined (not shown) in a rapid rapid stroke. After hitting the component, the actual power stroke begins. In this case, a hydraulic high pressure of for example 250 to 400 bar is generated in the translator part 3 from pneumatic low pressure of for example 2 to 10 bar. This hydraulic high pressure acts on the hydraulic surface of the working piston and thus generates a desired high pressing force for the power stroke of, for example, up to 2000 kN.

A return stroke of the working piston 5 and a booster piston, which in a housing 6 of the translator part 3 in the longitudinal direction according to the extension of the axis S back and forth in a starting position pneumatically by switching an air pressure on a return stroke of the two pistons of the working part. 2 and translator part 3.

About the connecting portion 7 between the working part 2 and the translator part 3, the working part 2 and the translator part 3 are hydraulically coupled together.

For the lifting movement of the working piston 5 a corresponding to the total stroke of the working piston 5 oil volume is required in a storage space in the translator part 3, which flows from a present in the translator part 3 hydraulic volume in a hydraulic volume in the working part 2 and vice versa, so that a piston movement of the booster piston a Piston movement of the working piston 5 conditionally.

Not shown in FIG. 1 are further components to the pressure booster 1 such. B. a pneumatic control on the translator part 3. Such a pneumatic control 10 is in the FIGS. 3 to 9 seen.

For a desired power stroke on the working piston 5, a pre-auszulegender hub of the booster piston is provided on the translator part 3.

FIG. 2 shows a working part 8 of a hydropneumatic device according to the invention, to which FIG. 3 a translator part 9 shows. The working part 8 and the translator part 9 can be connected via an adapter component 11 (see FIG. 11 ) together to form a hydropneumatic device according to the invention. The rigid or fixed adapter component 11 is designed here as a cuboidal metallic component with internal, passing through conduit sections for the passage of hydraulic fluid.

The working part 8, the translating part 9 and the adapter component 11 are in particular part of a kit for providing a hydro-pneumatic device, which is constructed from the components 8, 9 and 11 of the kit.

Depending on the intended use or design of the hydropneumatic device to be provided, a type of a translator part, adapter component and possibly working part is selected from a selection or a set of different types of said components and assembled to the desired hydropneumatic device. The different types of a particular component generally differ only in terms of size, which is not critical for the actual assembly. The respective shape or the respective dimensions of the sections, which is relevant for mounting on the translating and working part, does not differ in the case of different types of the set of types of adapter components. This applies accordingly to the types from the set of translator and working parts.

For assembling different combinations of the set of types of translator and working parts, it is only necessary to select the appropriate adapter component, which is also present in a set of different types or sizes in the kit. The kit thus includes in each set a plurality of prefabricated similar components, which differ from the other types only by design features.

Overall, this makes it possible to reduce or optimize the number of parts to be kept and to keep it comparatively low.

FIG. 4 to FIG. 6 each show different inventive hydro-pneumatic devices. FIG. 4 and FIG. 5 For example, each show an identical working part 8, which is connected via an adapter component 11a or 11b, each with a different type of a translator part 9 and 12 respectively. The translator part 12, for example, differs in its larger longitudinal dimension from the translator part 9, which otherwise has the same design. The translator parts 9 and 12 are different types of translator parts which belong to the same set of types of translator parts. The connecting intermediate elements or the adapter components 11a and 11b also belong to a same set of types of adapter components. The adapter components 11a and 11b differ only in their length, after which the adapter component 11a has a smaller length L1 compared to the length L2 of the adapter component 11b, which corresponds to the difference in length of the translator parts 9 and 12.

FIG. 6 concerns a further alternative hydropneumatic device according to the invention with a working part 13 whose total stroke is adjustable and which is hydraulically connected via the adapter member 11a with the translator part 9. The Working part 13 belongs to the same set of types of working parts, one type being the working parts 8 according to FIG FIGS. 4 and 5 includes and another type of working parts according to the working part 13. The translator part 9 according to FIG. 6 corresponds to the translator part 9 in FIG FIG. 4 , therefore also the identical reference number.

In the FIGS. 7 to 9 Hydropneumatic devices are shown, each comprising at least one hose adapter component of a set of types of hose adapter components. The hydropneumatic device according to FIG. 7 is assembled from a working part 8 and a translator part 9, wherein the hydraulic coupling between the working part 8 and the translator part 9 is realized with the hose adapter component 14. The hose adapter component 14 has a flexible hose section 14a between a fixed hose coupling part 14b on the working part 8 and a further fixed hose coupling part 14c on the translator part 9. FIG. 8 shows an extension of the arrangement FIG. 7 with a further working part 8, wherein a hose adapter component 16 corresponding to the hose adapter component 14 FIG. 7 is available. In addition, a hose adapter component 15 with a hose coupling part 15a is provided for the further working part 8, which is connected to the hose coupling part 16, which in turn is mounted on the translator part 9. Accordingly, an almost arbitrary, cascade-like extension of a translator part with several working parts by means of several hose adapter components is possible.

The hydropneumatic device according to FIG. 9 differs from the arrangement according to FIG. 6 only in that instead of the working part 8, a working part 13 is integrated with an adjustable total stroke. A hose adapter component 17 corresponds to the hose adapter component 14.

The arrangement off FIG. 7 represents a variant of the arrangement FIG. 4 , as well as the arrangement FIG. 9 to the arrangement FIG. 6 , wherein all four variants of an associated kit by selecting the types concerned can be provided. The kit in this case comprises four sets of types of four components, one set each of the types of translator parts, working parts, adapter components and hose adapter components.

FIG. 10 corresponds to a further alternative embodiment of a hydropneumatic device according to the invention or of a pressure booster 18 from the side with a working part 19 and a translator part 20, which are hydraulically coupled to one another via an adapter component 21 shown in section. In contrast to the embodiments according to the FIGS. 4 to 9 the pressure booster 18 is not formed with a longitudinal end-side lateral opening but with a central outlet 22. The center outlet 22 comprises an opening (not visible) which opens laterally on the translator part 20 and which is clearly offset in the longitudinal direction by end sections or cylinder covers of the translator part 20. The opening is used in a piston movement of the passage of hydraulic fluid from the translator part 20 in the adapter member 21 and from there into the working part 19 and back again at a corresponding opposite movement of the piston. In the working part 19, an opening is formed laterally on the working part 19 in an end portion of the working part 19 designed as a cylinder cover 23. Within the rigid adapter member 21 there is internally a connecting line portion 21a for the passage of hydraulic fluid, which connects the lateral opening of the central outlet 22 with the lateral opening in the cylinder cover 23 of the working part 19 to each other outwardly. The connecting line section 21a extends with a central line section in the longitudinal direction of the working part 19 or the translator part 20 or parallel thereto. The middle line section is at right angles to comparatively short End line sections, which are aligned in the mounted state respectively perpendicular to contact surfaces on the working part or translator part.

FIG. 11 shows in exploded view of the hydropneumatic device or the inventive arrangement according to FIG. 4 with an adapter component 11, a working part 8 and a relation to the working part 8 diameter larger translator part 9. The adapter member 11 is connected to connecting means, which are here designed as screws 31 a, 31 b, respectively with the working part 8 and the translator part 9. For this purpose, matching, prepared hole patterns are present, of which a hole pattern 24 is exemplified on the working part 8. The prepared hole pattern 24 has four threaded holes 24a with internal thread in a lateral plane surface 25a of a cylinder cover 25 of the working part 8. The four screw holes 24a are positioned in the corners of an imaginary square or rectangle on the face surface 25a around an opening 28 for the passage of hydraulic fluid. A corresponding hole pattern 26 for the screws 31a is present in each case on opposite main sides 29 and 34 of the adapter component 11 in a lower region of the adapter component 11. The corresponding hole patterns 26 are formed by four through holes, which pass through the adapter member 11 in the direction of its width B.

With the screwing of the adapter component 11 on the end face 25a in accordance with FIG. 11 As shown alignment with the screws 31 a, the adapter member 11 can be fixed in a positionally accurate on the cylinder cover 25.

The screwing of the adapter member 11 on a flat surface 33a of a cylinder cover 33 of the translator 9 takes place with the screws 31b, wherein the flat surface 33a is parallel to the main side 34, as well as the main side 29 is parallel to the plane surface 25a. The cylinder cover 33 is provided with four bar-shaped tie rods 32 engaging thereto (in FIG FIG. 11 only two are visible), wherein the tie rods 32nd engage through openings in a further cylinder cover at the other longitudinal end of the translator part 9, so that the two cylinder cover are pressed against the substantially cylindrical housing 6 at their protruding ends with external thread in each case by screwed nuts. In the same way, the corresponding parts of the working part 8 are connected.

For screwing the translator part 9 with the adapter component 11, the longer screws 31 b are inserted from the side of a plane surface 33 b of the cylinder cover 33 through through holes and screwed into corresponding threaded holes with internal thread in the upper part of the adapter component 11.

An assembly, for example via four screws, which extend from the main side 29 of the adapter member 11 through this and further into the cylinder cover 33 of the translator part 9, would also be conceivable.

The flat surface 33b is the flat surface 33a aligned in parallel. The through-holes in the cylinder cover 33 and the corresponding screw-in holes in the upper part of the adapter component 11 correspond in their relative position or their hole pattern to the hole pattern 24 in the plane surface 25a and the hole pattern 26 in the lower part of the adapter component 11 on the main sides 29 and 34th

With the adapter part 11 screwed tight, a hydraulic coupling between the translator part 9 and the working part is realized by hydraulic fluid from the translator part 9 via an opening 35 in the cylinder cover 33 and further via the opening 30 in the main side 34 at a corresponding stroke movement of the booster and working piston into a connecting line within the adapter component 11 and from there to the opening 28 in the cylinder cover 25 of the working part 8 can flow into a hydraulic space in the working part 8.

In an opposite stroke movement of the piston can flow according to hydraulic fluid from the working part 8 in the translator part 9.

With the adapter component 11 according to the invention or the uniform hole patterns on the adapter component 11 and on the cylinder covers 25 and 33, the relative position between the translator part 9 and the working part 8 can be chosen variably. The adapter component 11 can, starting from a mounting position z. B. according to FIG. 11 be mounted offset at a square hole pattern or square arrangement of the screw by 90, 180 and 270 degrees about a central axis of the opening 28, whereby the translator part 9 is changed according to its orientation to the working part 8.

In a rectangular hole pattern (not shown) or in an arrangement of the screw holes in the corners of an imaginary rectangle on the respective surfaces of the adapter member 11 and the translator and working part can, starting from the mounting position according to FIG. 11 a rotated by 180 degrees mounting done.

Likewise, starting from a mounting position of the translator part 9 on the adapter component 11, the translator part 9 can be screwed offset to the central axis of the opening 30 in the adapter component 11 by 90, 180 and 270 degrees. Thus, a plurality of different mounting situations arise through the assembly of the parts 8, 9 and 11th

LIST OF REFERENCE NUMBERS

1

Pressure intensifier

2

working part

3

Translator section

4

casing

4a, 4b, 4c

housing sections

5

working piston

6

casing

7

connecting portion

8th

working part

9

Translator section

10

pneumatic control

11, 11a, 11b

adapter component

12

Translator section

13

working part

14

Hose adapter component

14a

hose section

14b, 14c

Hose coupling member

15, 16, 17

Hose adapter component

15a, 16a

Hose coupling member

18

Pressure intensifier

19

working part

20

Translator section

21

adapter component

21a

Trunking section

22

mid disposal

23

cylinder cover

24

Cut out

24a

Ports

25

cylinder cover

25a

plane surface

26

Cut out

27

fixing screw

28

opening

29

Home

30

opening

31

fixing screw

31a, 31b

screw

32

tie rods

33

cylinder cover

33a, 33b

plane surface

34

Home

35

opening

Claims (6)

1. Hydropneumatic device with a pressure intensifier, wherein the hydropneumatic device has a working part (8, 13, 19) with a working piston (5) guided in the working part (8, 13, 19) and an intensifier part (9, 12, 20) with an intensifier piston guided in the intensifier part (9, 12, 20), wherein a connecting section for a hydraulic connection of the working part (8, 13, 19) and the intensifier part (9, 12, 20) is provided, which provides a connecting line (21a) for the passage of hydraulic fluid between the working part (8, 13, 19) and the intensifier part (9, 12, 20), wherein the connecting section comprises an at least substantially rigid adapter component (11, 11a, 11b, 21) which can be mounted on the working part (8, 13, 19) and on the intensifier part (9, 12, 20), in the interior of which the connecting line (21a) is formed, wherein in the assembled state of the adapter component (11, 11a, 11b, 21) via the connecting line (21a) an opening (28), which is provided at the side on the working part (8, 13, 19), of a hydraulic chamber of said working part (8, 13, 19) is connected to an opening (35), which is provided at the side on the intensifier part (9, 12, 20), of a hydraulic chamber of said intensifier part (9, 12, 20), wherein the respective lateral opening is provided in an external housing section enclosing the working and intensifier piston, characterised in that the adapter component (11, 11a, 11b, 21) is designed in such a way that in the mounted state the adapter component (11, 11a, 11b, 21) is supported on the working part (8, 13, 19) and the intensifier part (9, 12, 20) by means of main faces (29, 34) provided opposite one another on the adapter component (11, 11a, 11b, 21).
2. Device according to claim 1, characterised in that on the working part (8, 13, 19) and on the intensifier part (9, 12, 20) an end section (25, 33), as viewed in longitudinal direction, is provided on which the adapter component (11, 11a, 11b, 21) is supported in the mounted state.
3. Device according to claim 1 or 2, characterised in that the adapter component (11, 11a, 11b, 21) is designed substantially as a cubdoidal component with prepared attachment openings through which fastening means (31a, 31b) extend for mounting the adapter component (11, 11a, 11b, 21) on the working part (8, 13, 19) and on the intensifier part (9, 12, 20).
4. Device according to claim 2, characterised in that the end section (25) on the working part (8, 13, 19) and the end section (33) on the intensifier part (9, 12, 20) are matched to the associated attachment openings on the adapter component (11, 11a, 11b, 21) for mounting the adapter component (11, 11a, 11b, 21) on the working part (8,13, 19) and on the intensifier part (9, 12, 20) with fastening means (31a, 31b).
5. Device according to claim 2, characterised in that the end section (25) on the working part (8, 13, 19) and the end section (33) of the intensifier part (9, 12, 20) are designed in a similar manner in each case for mounting the adapter component (11, 11a, 11b, 21) on the working part (8, 13, 19) and on the intensifier part (9, 12, 20).
6. Device according to any of the preceding claims, characterised in that the connecting line (21a) in the adapter component (11, 11a, 11b, 21) comprises a connecting line section which, in the mounted state of the adapter component (11, 11a, 11b, 21) extends in the longitudinal direction of the intensifier part (9, 12, 20) and the working part (8, 13, 19).

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